RU2379131C2 - Device for cleaning of opening for anchor bolt - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: device contains brush on its peripheral section, suction nozzle, provided for injection into opening under anchor bolt for suction of shaving powder. Suction nozzle includes tubular main body, containing basic end part, allowing shape of right cylinder, and part, which is conical tubular casing, which pass downwardsom bottom end of basic end part and diametre of which is gradually reduced in the direction downwards. Suction opening, formed on heading end part of main body, is implemented so that to open inclined to longitudinal direction. Outlet bore, formed in basic end part of main body, is connected to heading end part of suction hose, basic end of which is connected to suction opening of intake, herewith brush is located on external peripheral face of main body.

EFFECT: simplicity of structure and efficient removing of shaving powder, adherent to inner peripheral face of openings of different diametre under anchor bolt, and shaving powder, piled up in bottom part.

3 cl, 7 dwg

Description

FIELD OF THE INVENTION

This invention relates to a device for cleaning a hole for an anchor bolt, capable of cleaning the hole for an anchor bolt from powder formed during cutting, etc.

State of the art

When fixing the device or the like on a concrete surface in a concrete surface drill a hole for an anchor bolt using a perforator or the like. and the anchor bolt is inserted into the hole. Thus, a device or the like fixed on a concrete surface.

There is a so-called resin anchor and a mortar anchor in which the anchor bolt is fixed in the hole for the anchor bolt due to the adhesive force of the resin or lime mortar introduced between the hole and the anchor bolt. In this specification and claims, these anchors may be referred to as a “resin-anchored anchor” for simplicity.

In the case of an anchor fixed with resin, if there is powder or dust formed as a result of cutting inside the hole for the anchor bolt (on the inner peripheral surface and in the lower part), the resistance of the anchor bolt with respect to the pulling force is significantly reduced.

Therefore, it is necessary that the powder resulting from cutting, etc. does not remain in the drilled hole for the anchor bolt, that is, it is necessary that foreign materials (simply called “chip powder” in this description and the claims), such as cutting powder, do not fall between the hole for the anchor bolt and the outer peripheral surface of the anchor bolt .

For this purpose, various devices have been proposed for cleaning the holes for the anchor bolt. In particular, a device has been proposed that scrapes chip powder, etc. by inserting a rod-shaped cleaning tool with a brush located on its periphery into the drilled hole for the anchor bolt (see the publication of the application for utility model of Japan 07-15210). In addition, a device is proposed that scrapes chip powder, etc., adhered to the inner peripheral surface of the hole for the anchor bolt using a brush of a cleaning tool, which is made by placing the brush on the periphery of the central rod, on the upper end of which a coating is formed, and suction of particle powder from the suction port (see Japanese Utility Model Application Publication No. 64-17288).

SUMMARY OF THE INVENTION

Problems to be Solved by the Invention

However, although the device described in the publication of the application for utility model Japan 07-15210, has the advantage of a simple design, it is not able to adequately scrape chip powder, in particular fine chip powder, collected in the lower part.

In addition, although the device described in Japanese Utility Model Application Publication No. 64-17288 may suck fine chip powder from the suction port, it is difficult to scrape off the relatively large chip powder collected in the lower part with a brush or suction.

With this in mind, the purpose of this invention is to provide a device for cleaning the holes for the anchor bolt, which has a simple configuration, can scrape chip powder adhered to the inner peripheral surface of the holes for the anchor bolt, and also effectively scrape out both fine and relatively large chip powder, gathering at the bottom.

Means for solving the problem

The above objective of the present invention can be achieved by creating a device for cleaning the holes for the anchor bolt, which has a brush on its peripheral part and is configured to clean chip powder adhered to the inner peripheral surface of the hole, and which contains a suction nozzle for injection into the hole for the anchor bolt for the suction of chip powder, and the suction nozzle includes a tubular main body, which includes a base end h a part having the shape of a straight cylinder and a part being a conical tubular body that extends downward from the lower end of the base end part and whose diameter gradually decreases in the downward direction, a suction hole that is formed on the head end part of the main body so as to open under tilted to the longitudinal direction, and an outlet formed in the base end portion of the main body for connection with the head end of the suction hose, the base end of which is connected to tverstiem suction of the suction device, wherein the brush is disposed on the outer peripheral surface of the main body.

Preferably, the brush is arranged in a spiral shape on the outer peripheral surface of the main body.

Preferably, a plurality of brushes having an annular shape are arranged at different height levels on the outer peripheral surface of the main body.

Advantages of the Invention

In accordance with the device for cleaning the holes for the anchor bolt according to this invention having the above configuration, it is possible to implement a device for cleaning the holes for the anchor bolt, which has a simple structure, can scrape chip powder adhered to the inner peripheral surface of the holes for the anchor bolt, and can also effectively scrape out both fine and relatively large particle powder that has accumulated in the lower part.

Brief Description of the Drawings

The invention will now be explained in more detail with reference to the drawings, in which:

figure 1 is a side view of the entire structure of the suction nozzle of the device for cleaning holes for the anchor bolt, according to one embodiment of the present invention;

figure 2 is a side view of the entire structure of the suction nozzle of the device for cleaning the holes for the anchor bolt, according to an embodiment different from that shown in figure 1;

figure 3 is a side view of the configuration of the part where the brush of the suction nozzle shown in figure 2, in an enlarged scale;

figure 4 is a side view of the entire structure of the suction nozzle of the device for cleaning the holes for the anchor bolt, according to an embodiment different from those shown in figures 1 and 2;

5 is a state diagram in which the hole for the anchor bolt is cleaned using a device for cleaning the holes for the anchor bolt having a suction nozzle of the embodiment shown in FIG. 1;

6 is a side view of the design of the suction nozzle of the device for cleaning the holes for the anchor bolt, according to a variant implementation, different from those shown in figures 1, 2 and 4;

Fig.7 is a side view of the configuration of the upper end of the suction nozzle, on an enlarged scale.

Description of preferred embodiments of the invention

Option 1

The following is a detailed explanation of a device for cleaning a hole for an anchor bolt, according to one embodiment of the present invention, with reference to the drawings.

Figure 1 shows a side view of the complete construction of the suction nozzle of the device for cleaning the holes for the anchor bolt, according to one embodiment of the present invention.

An apparatus A for cleaning a hole for an anchor bolt according to an embodiment of the present invention includes a suction nozzle B shown in FIG. The suction nozzle B (hereinafter simply referred to as “nozzle”) has a main body 1, which is a tubular body, and a brush 2, located on the outer peripheral surface 1S of the main body in the longitudinal direction.

A suction hole 1A is formed at the head end of the main body 1, which opens obliquely to the longitudinal direction. An outlet 1B is formed at the base end of the main body 1, which is open in a direction perpendicular to the longitudinal direction. The main body 1 includes a base end portion 1C, which has the shape of a straight cylinder, and a portion 1L, which extends from the lower end 1e of the base end portion 1C to the suction hole 1A below the lower end 1e and has a conical tubular shape, the diameter of which gradually decreases in the downward direction .

Although the material of the suction nozzle B is not specifically limited, it is preferable to use plastic to reduce weight and mass production at a low cost. As shown in FIG. 1, in embodiment 1, the brush 2 is located only on the lower end conical part of the tubular main body 1. However, the brush 2 can be positioned so as to extend upward to a position on the base end side above the position shown in FIG. .one.

In addition, in the embodiment 1 shown in FIG. 1, the brush 2 is arranged spirally on the outer peripheral surface 1S of the main body 1. As shown in FIG. 1, in the case of forming the main body 1 by molding or the like, the brush 2 can be located directly on the outer peripheral surface 1S of the main body 1. As an alternative solution, as shown in FIG. 2, in the case of integral casting, a spiral groove ID can be formed on the outer peripheral surface of the main body 1 and then on it a ribbon-like body 3 with a brush 2 can be mounted on the surface by inserting ID into the groove by gluing, fitting, or the like. This is preferable since the integral casting of the main body 1 can be simply performed.

In use, the head end of the corrugated hose 5 is connected to the outlet 1B of the main body 1, as shown in FIG. 5, and the base end of the hose 5 is connected to the suction hole 7a of the suction device 7 (a vacuum cleaner is used as the suction device in embodiment 1) through a conventional hose 9.

As shown in FIG. 5, after drilling the hole 8 for the anchor bolt using a concrete drill or the like, the nozzle B is inserted into the hole 8 for the anchor bolt, so that the suction hole 1A is directed to the hole for the anchor bolt (suction hole 1A located on the lower end side in FIG. 5). In this state, by switching on the suction device 7, chip powder, etc. in the hole 8 under the anchor bolt is sucked through the suction holes 1A. Chip powder adhering to the inner peripheral surface 8S of the hole 8 for the anchor bolt can be scraped off and it falls into the lower part of the hole from the inner peripheral surface 8S of the hole with the brush 2 when moving the nozzle B up and down, turning, etc., if necessary, and suction scraped off chip powder, etc. from the suction hole 1A together with the particle powder that has accumulated in the lower part of the hole.

As a result, chip powder, etc. in the hole 8 for the anchor bolt is effectively sucked out through the suction holes 1A through the outlet 1B, and chip powder, etc. does not remain in the hole for the anchor bolt.

Therefore, in the case when the anchor bolt (not shown) is installed in the hole 8 under the anchor bolt in this state, and the resin or lime mortar is filled into the gap between them, you can get the specified resistance to the pulling force, since there is no between the anchor bolt and the hole for the anchor bolt chip powder.

As mentioned above, since the particle powder can be quickly and simply sucked out of the hole 8 for the anchor bolt, a device for cleaning the holes for the anchor bolt is especially preferred in the case of the formation of the so-called anchor, fixed in concrete with adhesive, or anchor, fixed with lime mortar. Namely, in the case of an anchor fixed in concrete with an adhesive, or an anchor fixed in lime mortar, the presence or absence of chip powder, etc., remaining in the hole 8 for the anchor bolt strongly affects the characteristics of the filler, and also very negatively affects the resistance of the anchor bolt relative to the tensile force. However, in this device A for cleaning the holes for the anchor bolt, since chip powder, etc. it is removed reliably and efficiently, the chip powder does not mix with the filler, the filler is effectively filled between the hole 8 for the anchor bolt and the anchor bolt (not shown), whereby a predetermined high resistance to pulling force is obtained.

Option 2

As another embodiment related to the nozzle B, as shown in FIG. 4, the ring-shaped brushes 2 can be located at different height levels on the outer peripheral surface 1S of the main body 1.

In the device for cleaning the holes for the anchor bolt shown in Figs. 1, 2 and 4, the suction hole 1A opens obliquely to the longitudinal direction (the center axis direction shown by the dot-dash line). However, as shown in FIG. 6, the suction hole 1A may be open perpendicular to the longitudinal direction. In this case, as shown in FIG. 7, concave and convex portions can be formed on the open end surface 1a of the suction hole 1A, so that suction is effectively performed even in a state in which the suction hole 1A is in contact with the bottom surface, etc. d. holes for the anchor bolt. It should be noted that in FIGS. 6 and 7, the same reference numbers are used to indicate the same or corresponding components, as in FIGS. 1, 2 and 4, and therefore, a detailed description thereof will not be repeated.

Although it has been indicated above that the chip powder adhering to the inner peripheral surface 8S of the hole is scraped off and falls into the lower part of the hole with the brush 2, it is understood that the brush 2 can scrape chip powder from the outside of the hole 8 for the anchor bolt depending on the type of use.

Industrial applicability

The device for cleaning the holes for the anchor bolt according to this invention can be used, for example, to clean the holes for the anchor bolt, etc.

Claims (3)

1. A device for cleaning the holes for the anchor bolt, which has a brush on its peripheral part and is configured to clean chip powder adhered to the inner peripheral surface of the hole, and which contains a suction nozzle designed to be inserted into the hole for the anchor bolt for the absorption of chip powder moreover, the suction nozzle includes a tubular main body, which includes a base end portion having the shape of a straight cylinder, and a portion that is a conical tubular a housing that extends downward from the lower end of the base end portion and the diameter of which gradually decreases in the downward direction, a suction hole that is formed on the head end portion of the main body, so as to open obliquely to the longitudinal direction, and an outlet formed in the base the end part of the main body for connection with the head end of the suction hose, the base end of which is connected to the suction hole of the suction device, the brush being located and the outer peripheral surface of the main body. 2. The device according to claim 1, in which the brush is located on the outer peripheral surface of the main body in the form of a spiral. 3. The device according to claim 1, in which several brushes having an annular shape are located at different height levels on the outer peripheral surface of the main body.

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