Multi-purpose brushes and floating soil removal devices for file drivers with them

Abstract

The present invention comprises: a plurality of rotating blocks installed at spaced intervals on a drive shaft that rotates by power transmission; friction members extending outward from the rim of the rotating blocks and arranged at a constant interval to contact a workpiece and remove foreign substances attached to the workpiece; and a connecting part that individually and detachably connects the plurality of friction members to the rotating blocks. The device includes a contact multiplier that increases the contact area between the friction member and the workpiece by positioning the extension direction of the friction member at a certain angle from the arrangement direction of the rotating block, and since the connection part is positioned at a certain angle from the extension direction of the rotating block by the contact multiplier, the friction member installed in the connection part is positioned at a certain angle from the arrangement direction of the rotating block, and when the workpiece approaches to be adjacent to the rotating block, the end of the friction member contacts the workpiece while spaced apart from it, and the end of the friction member is pressed against the outer wall of the workpiece, causing the friction member to bend in the spaced-away direction and contact the workpiece, so that the end and side of the friction member are in close contact with the outer wall of the workpiece, thereby increasing the contact area, and the contact area between the friction member and the workpiece is increased, so that foreign substances attached to the workpiece can be effectively separated from the workpiece.

Description

Technology Field

[0001] The present invention relates to a multi-purpose brush and a floating soil removal device for a pile driver equipped with the same. More specifically, the invention relates to a multi-purpose brush and a floating soil removal device for a pile driver equipped with the same, which can effectively separate foreign substances fused to a workpiece by providing a contact expansion part that widens the contact area between the workpiece and the brush during cleaning, and improves the structure of the connection part by having a connection part that individually connects a plurality of friction members to a rotating block so as to be spaced apart from the drive shaft, thereby allowing for easy replacement of the friction members when their lifespan ends, thus reducing the time and cost required for brush maintenance. Background Technology

[0002] Generally, when reinforcing soft ground and carrying out foundation work at various construction sites, drilling screws are used to bore holes in the ground. However, during this ground drilling operation using drilling screws, so-called "lifted soil" occurs as soil rises through the screw; as this lifted soil falls from a height, injuries to workers on the ground have been occurring frequently.

[0003] To solve these problems, a floating soil removal device is provided that removes floating soil rising through a drilling screw.

[0004] As an example of a floating soil removal device, a dust prevention and soil removal device for a pile driver is used. The dust prevention and soil removal device for a pile driver according to the prior art comprises a cover body in which the upper and lower parts of a vertically shaped semicircular side curve plate are finished with an upper end plate and a lower end plate, while a brush receiving space with one side open is formed inside, and a fixing bracket having a bolt hole is formed protruding from the side curve plate; and a rotating brush in which a plurality of soil removal bristles are formed around a rotation axis, a soil removal bristle on one side is received in the brush receiving space and is formed to protrude outward from the brush receiving space, and bearings are coupled to the upper and lower parts of the cover body by the rotation axis, and the upper end of the rotation axis protrudes above the upper end plate and a driving motor is mounted.

[0005] The background technology of the present invention is disclosed in Korean Published Patent Application No. 10-2014-0047823 (published on April 23, 2014, title of invention: dust prevention and soil removal device for pile driver). The problem to be solved

[0006] A dust prevention and soil removal device for a pile driver according to the prior art has a problem in that, because it is not equipped with a separate technical configuration to increase the contact area between the drilling screw and the brush, a portion of the drilling screw passes through without contacting the brush when it rises to the ground, which may result in incomplete removal of floating soil.

[0007] In addition, dust prevention devices and soil removal devices for pile drivers according to the prior art have a problem in that, since multiple wires forming the brush are installed radially from the rotation axis of the brush, the entire brush must be replaced when the performance of the brush deteriorates due to wear of multiple wires, making it difficult to reduce the cost required for brush maintenance. Furthermore, if only the wires are replaced from the brush, the drive shaft of the brush and the wires interfere with each other, making it difficult to separate only the wires from the brush, which makes it difficult to reduce the time and cost required for brush replacement work.

[0008] Therefore, there is a need to improve this.

[0009] The present invention aims to provide a multi-purpose brush and a pile driver floating soil removal device equipped with the same, which can effectively separate foreign substances fused to a workpiece by having a contact expansion part that widens the contact area between the workpiece and the brush during cleaning, and can reduce the time and cost required for brush maintenance by improving the structure of the connection part by having a drive shaft arranged so as to separate a plurality of friction members individually connected to a rotating block, thereby allowing easy replacement of the friction members when their lifespan ends. means of solving the problem

[0010] The present invention comprises: a plurality of rotating blocks installed at spaced intervals on a drive shaft that rotates by power transmission; friction members extending outward from the rim of the rotating blocks and arranged at a constant interval to contact a workpiece and remove foreign substances attached to the workpiece; and a connecting part that individually and detachably connects the plurality of friction members to the rotating blocks. The device includes a contact multiplier that increases the contact area between the friction member and the workpiece by positioning the extension direction of the friction member at a certain angle from the arrangement direction of the rotating block, and since the connection part is positioned at a certain angle from the extension direction of the rotating block by the contact multiplier, the friction member installed in the connection part is positioned at a certain angle from the arrangement direction of the rotating block, and when the workpiece approaches to be adjacent to the rotating block, the end of the friction member contacts the workpiece while spaced apart from it, and the end of the friction member is pressed against the outer wall of the workpiece, causing the friction member to bend in the spaced-away direction and contact the workpiece, so that the end and side of the friction member are in close contact with the outer wall of the workpiece, thereby increasing the contact area, and the contact area between the friction member and the workpiece is increased, so that foreign substances attached to the workpiece can be effectively separated from the workpiece.

[0011] In addition, the friction member of the present invention is characterized in that a plurality of wires are formed by being in close contact with each other and twisted into a screw shape, a connecting tip is installed at an inner end to simultaneously restrain a plurality of wires, and a locking portion is formed at the inner end of the connecting tip so as to restrain the connecting tip to the connecting portion.

[0012] In addition, the friction member of the present invention is characterized in that a plurality of wires forming a part of the outer end are separated from each other and spread out in a brush shape to form an expansion portion, and the friction member having the expansion portion and the friction member not having the expansion portion are alternately arranged along the drive shaft.

[0013] In addition, the connecting portion of the present invention is characterized by comprising: a connecting hole portion installed in the rotating block so that the friction member is inserted and fixed; and a fixing pin fastened to the connecting hole portion to restrain the friction member.

[0014] In addition, the contact extension of the present invention is characterized by including an inclined block interposed between the rotating block and the connecting part so that the connecting part is positioned at an angle from the rotating block.

[0015] In addition, the connecting part is characterized by being spaced apart from the driving shaft to prevent interference between the friction member and the driving shaft when the friction member of the present invention is separated from the connecting part.

[0016] delete

[0017] In addition, the present invention comprises: a plurality of rotating blocks installed at spaced intervals on a drive shaft that rotates by power transmission; a friction member extending outward from the edge of the rotating block and arranged at a constant interval to contact a workpiece and remove foreign substances attached to the workpiece; and a connecting part that individually and detachably connects the plurality of friction members to the rotating block. The multi-purpose brush is characterized by having a contact multiplier that increases the contact area between the friction member and the workpiece by arranging the extension direction of the friction member at a certain angle from the arrangement direction of the rotation block, and since the connection part is arranged at a certain angle from the extension direction of the rotation block by the contact multiplier, the friction member installed in the connection part is arranged at a certain angle from the arrangement direction of the rotation block, and when the workpiece approaches to be adjacent to the rotation block, the end of the friction member contacts the workpiece while spaced apart from the workpiece, and the end of the friction member is pressed against the outer wall of the workpiece, causing the friction member to bend in the spaced-away direction and contact the workpiece, thereby increasing the contact area as the end and side of the friction member adhere to the outer wall of the workpiece, and the contact area between the friction member and the workpiece is increased, thereby effectively separating foreign substances attached to the workpiece from the workpiece. Effects of the invention

[0018] The multi-purpose brush according to the present invention and the floating soil removal device for a pile driver equipped therewith have the advantage of effectively removing floating soil attached to a workpiece by expanding the contact area between the workpiece passing through the brush, which is rotated by the operation of a driving unit, since a contact amplifying part that widens the contact area between the workpiece and the brush is provided, thereby widening the contact area between the workpiece passing through the brush.

[0019] In addition, the multi-purpose brush according to the present invention and the floating soil removal device for a pile driver equipped therewith have the advantage that, since the ends of a portion of the friction member consisting of a plurality of wires are spread out to form an expansion portion, a separate brush consisting of a plurality of wires is formed at the ends of the plurality of friction members, and the screw in contact with the friction member and the plurality of wires rub against each other, thereby enabling the clean removal of even fine-sized floating soil.

[0020] In addition, the multi-purpose brush according to the present invention and the pile driver soil removal device equipped therewith have a connection part that individually and detachably connects a plurality of friction members to a rotating block. Therefore, when the lifespan of the friction member ends due to prolonged contact between the friction member and the workpiece, the operator can easily detach the friction member from the rotating block by disassembling the connection part and install a new friction member on the rotating block via the connection part, thereby having the advantage of significantly reducing the time and cost required for brush maintenance.

[0021] In addition, the multi-purpose brush according to one embodiment of the present invention and the floating soil removal device for a pile driver equipped therewith have the advantage of reducing the time and cost required for brush maintenance, as the connecting part is positioned spaced apart from the drive shaft to prevent interference between the friction member and the drive shaft when the friction member is replaced due to the expiration of its lifespan, thereby allowing the operator to easily detach the wire from the rotating block by disassembling only the connecting part without a separate jig device when replacing the friction member, and to easily connect a new friction member to the rotating block via the connecting part. Brief explanation of the drawing

[0022] FIG. 1 is a perspective view showing a multi-purpose brush according to one embodiment of the present invention. FIG. 2 is a perspective view showing the interior of a multi-purpose brush according to one embodiment of the present invention. FIG. 3 is a plan view and a side view showing a multi-purpose brush according to one embodiment of the present invention. FIG. 4 is an enlarged perspective view showing the connecting part of a multi-purpose brush according to one embodiment of the present invention. FIG. 5 is a cross-sectional view showing the contact extension portion of a multi-purpose brush according to one embodiment of the present invention. FIG. 6 is a perspective view showing a pile driver soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention. FIG. 7 is a perspective view showing the connection structure of a guide section of a pile driver for removing floating soil equipped with a multi-purpose brush according to another embodiment of the present invention. FIG. 8 is a perspective view showing a brush mounting structure of a pile driver soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention. FIG. 9 is a perspective view showing a variable support part and a guide part of a pile driver for removing floating soil equipped with a multi-purpose brush according to another embodiment of the present invention. FIG. 10 is a perspective view showing a variable support portion of a pile driver soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention. FIG. 11 is an operational state diagram showing a variable support portion of a pile driver soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention. FIG. 12 is a block diagram illustrating a pile driver soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention. Specific details for implementing the invention

[0023] Hereinafter, an embodiment of a multi-purpose brush according to the present invention and a floating soil removal device for a pile driver equipped with the same will be described with reference to the attached drawings.

[0024] In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for the sake of clarity and convenience of explanation.

[0025] In addition, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or practice of the user or operator.

[0026] Therefore, the definitions of these terms should be based on the content throughout this specification.

[0027] FIG. 1 is a perspective view showing a multi-purpose brush according to one embodiment of the present invention, FIG. 2 is a perspective view showing the interior of a multi-purpose brush according to one embodiment of the present invention, and FIG. 3 is a plan view and a side view showing a multi-purpose brush according to one embodiment of the present invention.

[0028] In addition, FIG. 4 is an enlarged perspective view showing a connecting portion of a multi-purpose brush according to one embodiment of the present invention, and FIG. 5 is a cross-sectional view showing a contact extension portion of a multi-purpose brush according to one embodiment of the present invention.

[0029] Referring to FIGS. 1 to 5, a multi-purpose brush according to one embodiment of the present invention comprises a plurality of rotating blocks (32) installed at intervals on a drive shaft (14) that is rotated by power transmission, a friction member (34) that extends outward from the edge of the rotating block (32) and is arranged at a constant interval to contact a workpiece and remove foreign substances attached to the workpiece, a connecting part (36) that individually and detachably connects the plurality of friction members (34) to the rotating block (32), and a contact increasing part (39) that connects the connecting part (36) to the rotating block (32) at an angle to increase the contact area between the friction member (34) and the workpiece.

[0030] Accordingly, since the connecting part (36) is positioned at a certain angle (θ) from the rotating block (32) by the contact extension part (39) of the present embodiment, the friction member (34) installed in the connecting part (36) extends outwardly at an angle from the rotating block (32).

[0031] Due to the structural features described above, when a workpiece approaches the rotating block (32) of the present embodiment, the end of the friction member (34) contacts the workpiece while being spaced apart from it. As the end of the friction member (34) is pressed against the outer wall of the workpiece, the friction member (34) bends in the spaced-away direction and contacts the workpiece. Consequently, the end and side of the friction member (34) are in close contact with the outer wall of the workpiece, thereby increasing the contact area. As the contact area between the friction member (34) and the workpiece increases, foreign substances attached to the workpiece can be effectively separated from the workpiece.

[0032] The friction member (34) of the present embodiment is formed by twisting a plurality of wires into a screw shape while they are in close contact with each other, and a connecting tip (34b) that simultaneously restrains a plurality of wires is installed at the inner end, and a locking part (34c) is formed at the inner end of the connecting tip (34b) so that the connecting tip (34b) is restrained to the connecting part (36).

[0033] In addition, the friction member (34) of the present embodiment has a plurality of wires forming a part of the outer end separated from each other and spread out in a broom shape to form an extension (34a), and a friction member (34) having an extension (34a) and a friction member (34) not having an extension (34a) are alternately arranged along the drive shaft (14).

[0034] The friction member (34), which has an extension (34a) at its end, has a plurality of wires that are separated from each other and spread out in a broom shape, so that the contact area with the work object becomes wider compared to the end of another friction member (34), thereby enabling effective removal of small particles of soil or dust among foreign substances attached to the work object.

[0035] Another friction member (34) in which multiple wires are fused together has a narrow contact area with the workpiece, but the end strength of the friction member (34) is relatively strong, so it is possible to effectively crush large foreign particles attached to the workpiece and separate them from the workpiece.

[0036] The contact extension part (39) of the present embodiment includes an inclined block (39a) interposed between the rotation block (32) and the connection part (36) so that the extension direction of the connection part (36) is spaced apart from the arrangement direction of the rotation block (32), so the extension direction of the friction member (34) is installed so that it is inclined downward at a certain angle (θ), about 15°, from the arrangement direction of the rotation block (32).

[0037] The connecting portion (36) of the present embodiment includes a connecting hole portion (37) installed in the rotating block (32) so that a friction member (34) is inserted and fixed, and a fixing pin (38) fastened to the connecting hole portion (37) to restrain the friction member (34), and the inclined block (39a) is formed by including a welding tip that is generated when the connecting hole portion (37) is welded to the rotating block (32).

[0038] In addition, in this embodiment, as indicated by the dotted line in FIG. 3, the straight line formed by the friction member (34) and the connecting hole (37) is arranged to be spaced apart from the driving shaft (14), so that interference between the friction member (34) and the driving shaft (14) can be prevented when separating the friction member (34) from the connecting part (36).

[0039] As described above, the connecting hole portion (37) of the present embodiment is installed at regular intervals on the edge of the rotating block (32) so that multiple friction members (34) can be installed to extend radially from the edge of the rotating block (32), and the multiple connecting hole portions (37) are arranged at a certain angle apart from the edge of the rotating block (32) in the direction of the drive shaft (14) so ​​that when the friction members (34) are separated to the rear side of the connecting hole portion (37), the friction members (34) and the drive shaft (14) can be prevented from interfering with each other.

[0040] When installing the friction member (34) on the rotating block (32), the friction member (34) is inserted from the back of the connecting hole (37) so that the connecting tip (34b) installed at the end of the friction member (34) is inserted into the connecting hole (37), and a fixing pin (38) is inserted into the upper surface of the connecting hole (37) to press and restrain the connecting tip (34b).

[0041] Since a locking part (34c) with a diameter larger than that of the connecting tip (34b) is provided at the rear end of the connecting tip (34b), when the rotating block (32) rotates around the drive shaft (14), a tension is generated in which the friction member (34) is pulled outward from the connecting hole part (37) by the centrifugal force formed on the friction member (34), and the friction member (34) is prevented from being separated from the rotating block (32) by being engaged with the connecting hole part (37) by the locking part (34c) provided at the rear end of the friction member (34).

[0042] As described above, if the removal of foreign substances attached to the workpiece by the friction member (34) is carried out for a long period, the end of the friction member (34) wears out, and the lifespan of the friction member (34) is completed, requiring replacement of the friction member (34).

[0043] When the replacement of the friction member (34) begins, the worker removes the fixing pin (38) from the connection hole (37) and then separates the friction member (34) from the rotating block (32) while pulling out the catch (34c) and the connection tip (34b) to the rear side of the connection hole (37) to proceed with the replacement.

[0044] At this time, the friction member (34) being pulled out to the rear of the connection hole (37) can be prevented from interfering with the drive shaft (14) by the connection hole (37) being spaced apart from the drive shaft (14).

[0045] FIG. 6 is a perspective view showing a floating soil removal device for a pile driver equipped with a multi-purpose brush according to another embodiment of the present invention, FIG. 7 is a perspective view showing a connection structure of a guide part of a floating soil removal device for a pile driver equipped with a multi-purpose brush according to another embodiment of the present invention, and FIG. 8 is a perspective view showing a brush mounting structure of a floating soil removal device for a pile driver equipped with a multi-purpose brush according to another embodiment of the present invention.

[0046] In addition, FIG. 9 is a perspective view showing a variable support member and a guide member of a pile driver floating soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention, and FIG. 10 is a perspective view showing a variable support member of a pile driver floating soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention.

[0047] In addition, FIG. 11 is an operational state diagram showing a variable support part of a pile driver floating soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention, and FIG. 12 is a block diagram showing a pile driver floating soil removal device equipped with a multi-purpose brush according to another embodiment of the present invention.

[0048] Referring to FIGS. 6 to 12, a pile driver for removing floating soil equipped with a multi-purpose brush according to another embodiment of the present invention comprises: a brush (30) installed on a column member (10) to be inserted into the gap between the wings of an auger screw (12) that constructs a drilling hole in the ground while moving up and down along the column member (10) of the pile driver; a drive shaft (14) rotatably provided on one side of the column member (10) and in which a plurality of brushes (30) are installed continuously while maintaining a constant interval; a motor (16) installed on the drive shaft (14) to provide power; an operating unit (102) that adjusts the rotational speed of the drive shaft (14) to be the same as or similar to the rotational speed of the auger screw (12); and a control unit (100) that controls the power supplied to the motor (16) according to a driving signal received from the operating unit (102) to adjust the rotational speed of the drive shaft (14).

[0049] Therefore, by adjusting the rotation direction of the auger screw (12) and the rotation direction of the brush (30) to be opposite to each other, and controlling the rotation speed of the auger screw (12) and the rotation speed of the brush (30) to be the same or similar, it is possible to prevent malfunctions in which floating soil interposed between the wings of the auger screw (12) passes through without contacting the brush (30), thereby effectively separating the floating soil interposed between the wings of the auger screw (12) and discharged to the ground from the auger screw (12).

[0050] In addition, since a reduction gear (18) is installed between the motor (16) and the drive shaft (14), the power provided from the motor (16) is reduced and transmitted to the drive shaft (14), so that the drive shaft (14) does not rotate faster than necessary and the rotational speed of the drive shaft (14) can be accurately controlled according to the operation of the control unit (102).

[0051] In this embodiment, the drive shaft (14) is installed in a cover member (50) that surrounds the brush (30), and a variable support member (70) is installed between the cover member (50) and the column member (10) to connect the drive shaft (14) so ​​that it can move forward or backward toward the auger screw (12).

[0052] Therefore, after installing the brush (30) and the cover member (50) on the pile driver, the gap between the auger screw (12) and the brush (30) can be adjusted by operating the variable support member (70) to adjust the gap between the brush (30) and the auger screw (12), so that the friction member (34) can be appropriately inserted into the gap between the wings of the auger screw (12).

[0053] The variable support member (70) of the present embodiment includes a fixed member (72) on which the cover member (50) is supported, a connecting member (76) which is rotatably connected to the fixed member (72) by a first hinge member (74) and supported by a column member (10), a variable cylinder (78) installed between the cover member (50) and the connecting member (76) to advance or retract the cover member (50) toward the auger screw (12), and a detachable member (80) which connects the connecting member (76) to the column member (10) so as to be detachable.

[0054] Since the driving part (13) of the auger screw (12) is slidably installed on the column member (10) of the pile driver, the auger screw (12) can be rotated by the operation of the driving part (13) while moving up and down along the column member (10).

[0055] Additionally, a guide rail (11) is provided on the other side of the column member (10) so that a hammer can be installed to move up and down. In this embodiment, the detachable part (80) is installed to be detachable on the guide rail (11) where the hammer is installed, so that a cover member (50) and a brush (30) supported by the detachable part (80) can be positioned adjacent to one side of the auger screw (12).

[0056] Afterwards, when the length of the variable cylinder (78) is varied by the operator's operation, the cover member (50) rotates around the first hinge part (74), thereby advancing or retracting the brush (30) toward the auger screw (12), and the gap between the auger screw (12) and the brush (30) can be appropriately adjusted.

[0057] The detachable part (80) of the present embodiment includes a detachable block (82) installed on a connecting member (76) and in close contact with a guide rail (11) of a column member (10), a hook (84) provided at one end of the detachable block (82) and engaged with one of the guide rails (11) of a pair of guide rails (11), and a detachable hook (89) protruding from a detachable panel (87) that is detachably installed at the other end of the detachable block (82) and engaged with the other guide rail (11) of a pair of guide rails (11).

[0058] Since a hook (84) is formed on one end of the detachable block (82), the hook (84) is hooked onto one side of the pair of guide rails (11) of the column member (10) where the hammer is installed, and then the detachable panel (87) is attached to the detachable block (82) by fastening a bolt. This causes the detachable hook (89) to hook onto the other side of the pair of guide rails (11), thereby connecting the detachable block (82) to the pair of guide rails (11) in close contact.

[0059] As described above, when the detachable block (82) is coupled to the column member (10), the fixing member (72), the first hinge member (74), and the connecting member (76) extending from the detachable block (82) are coupled to the column member (10), and the variable cylinder (78) installed between the fixing member (72) and the connecting member (76) is driven to enable the cover member (50) and the brush (30) to advance or retract toward the auger screw (12).

[0060] Here, the variable cylinder (78) may be formed to include a turnbuckle in which the rod is protruded or inserted by the manual operation of a worker.

[0061] In addition, a locking projection (86) protruding forward is formed at the bottom of the detachable block (82) of the present embodiment, and the locking projection (86) is engaged with the locking projection (15) formed on the column member (10) to improve the support strength of the connecting rod (76).

[0062] In this embodiment, the detachable panel (87) can be rotatably connected to the detachable block (82) by a hinge, and when fixing the detachable panel (87) to the detachable block (82), the detachable panel (87) is positioned so as to be in close contact with the detachable block (82) with the hinge as the center, and then a bolt member is passed through the detachable panel (87) to fasten it to the detachable block (82), thereby fixing the detachable panel (87) in a state of close contact with the detachable block (82) and maintaining the state in which the detachable hook (89) is engaged with the guide rail (11).

[0063] In addition, the cover member (50) of the present embodiment is provided with a guide member (90) that supports a reinforcing bar structure (98) inserted into a drilling hole formed by a drilling operation. Therefore, when the body of the pile driver rotates after the drilling operation is finished, the auger screw (12) is separated from the drilling hole, and the reinforcing bar structure (98) supported by the guide member (90) is positioned facing the drilling hole.

[0064] Therefore, the ground reinforcement method can be carried out more easily by lowering the reinforcing structure (98) and inserting it into the drilled hole without the worker having to adjust the position of the reinforcing structure (98), and subsequently injecting concrete mortar into the drilled hole to harden it.

[0065] The guide section (90) of the present embodiment includes a guide panel (92) formed in the shape of a curved panel to support one side of a reinforcing bar structure (98), a second hinge section (94) that rotatably connects the guide panel (92) to a cover member (50), and a guide cylinder (96) installed between the guide panel (92) and the cover member (50) to advance or retract the guide panel (92) toward the cover member (50).

[0066] Therefore, by operating the guide cylinder (96), the guide panel (92) can be advanced or retracted toward the cover member (50), so that when the guide panel (92) is installed on a pile driver of various sizes, the position of the guide panel (92) can be adjusted to fit the various sizes, and the guide cylinder (96) of this embodiment can be formed to include a turnbuckle in which a rod is protruded or inserted by the operation of a worker.

[0067] Additionally, the control unit (102) of the present embodiment may include a jog shuttle (104) installed in the driver's seat of the pile driver to proportionally control the rotational speed of the motor (16) according to the operator's operation, and may include a switch (106) installed in the driver's seat of the pile driver to control the rotational speed of the motor (16) in steps according to the operator's operation.

[0068] Therefore, depending on the product characteristics of the pile driver, when the rotational speed of the auger screw (12) is different, the operator can control the rotational speed of the auger screw (12) and the rotational speed of the brush (30) to be the same or similar while performing the withdrawal operation of the auger screw (12).

[0069] Thus, by providing a contact expansion part that widens the contact area between the workpiece being cleaned and the brush, foreign substances fused to the workpiece can be effectively separated. Additionally, since the connection part and the drive shaft are spaced apart from each other to prevent interference between the friction member and the rotation shaft in the connection part that individually connects a plurality of friction members to a rotation block, the structure of the connection part is improved, allowing for easy replacement of the friction member when its lifespan ends, thereby reducing the time and cost required for brush maintenance. This enables the provision of a multi-purpose brush and a pile driver floating soil removal device equipped with the same.

[0070] Although the present invention has been described with reference to an embodiment illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0071] In addition, although a multi-purpose brush and a soil removal device for a pile driver equipped with the same have been described as examples, this is merely illustrative, and the brush and removal device equipped with the same of the present invention may be used in other products other than the brush and the soil removal device for a pile driver equipped with the same.

[0072] Therefore, the true technical scope of protection of the present invention should be determined by the following patent claims. Explanation of the symbols

[0073] 10 : Column member 11 : Guide rail 12: Auger screw 13: Drive unit 14: Drive shaft 15: Locking tab 16 : Motor 30 : Brush 32 : Rotating block 34 : Friction member 34a : Extension part 34b : Connection tip 34c : Locking part 36 : Connecting part 37 : Connection hole 38 : Fixing pin 39 : Contact extension part 39a : Inclined block 50 : Cover component 52 : Cover body 54 : Elastic cover 56 : Flexible panel 57 : Hinge 58 : Elastic panel 70 : Variable support part 72 : Fixing bracket 74: First hinge part 76: Connecting rod 78 : Variable cylinder 80 : Vehicle removal part 82 : Detachable block 84 : Locking tab 86 : Locking projection 87 : Detachable panel 89 : Detachable hook 90 : Guide part 92 : Guide panel 94 : Second hinge part 96 : Guide cylinder 98 : Rebar structure 100 : Control unit 102 : Jog shuttle 104 : Switch

Claims

Claim 1 A plurality of rotating blocks installed at spaced intervals on a drive shaft that rotates by power transmission; friction members extending outward from the rim of the rotating blocks and arranged at a constant interval to contact a workpiece and remove foreign substances attached to the workpiece; and a connecting part that individually and detachably connects each of the plurality of friction members to the rotating blocks. A multi-purpose brush characterized by including a contact increasing member that increases the contact area between the friction member and the workpiece by connecting the connecting member to the rotating block at an angle, wherein the friction member installed in the connecting member is arranged at a certain angle of inclination from the arrangement direction of the rotating block, and when the workpiece approaches to be adjacent to the rotating block, the end of the friction member contacts the workpiece in an inclined state, and the end of the friction member is pressed against the outer wall of the workpiece, causing the friction member to bend and contact the workpiece, thereby increasing the contact area as the end and side of the friction member adhere to the outer wall of the workpiece, and the increased contact area between the friction member and the workpiece allows foreign substances attached to the workpiece to be separated from the workpiece. Claim 2 A multi-purpose brush according to claim 1, wherein the friction member is formed by twisting a plurality of wires in a screw shape while in close contact with each other, a connecting tip is installed at an inner end to simultaneously restrain a plurality of wires, and a catch is formed at the inner end of the connecting tip so that the connecting tip is restrained to the connecting part. Claim 3 A multi-purpose brush according to paragraph 2, wherein the friction member is characterized in that a plurality of wires forming a part of the outer end are separated from each other and spread out in a brush shape to form an expansion portion, and the friction member having the expansion portion and the friction member not having the expansion portion are alternately arranged along the drive shaft. Claim 4 A multi-purpose brush according to claim 1, wherein the connecting portion comprises: a connecting hole portion installed in the rotating block so as to insert and fix the friction member; and a fixing pin fastened to the connecting hole portion to restrain the friction member. Claim 5 A multi-purpose brush according to claim 1, wherein the contact extension portion comprises an inclined block interposed between the rotation block and the connection portion such that the extension direction of the connection portion is spaced apart from the arrangement direction of the rotation block. Claim 6 A multi-purpose brush according to claim 1, characterized in that the connecting part and the drive shaft are spaced apart to prevent interference between the friction member and the drive shaft when the friction member is separated from the connecting part. Claim 7 delete Claim 8 A plurality of rotating blocks installed at spaced intervals on a drive shaft that rotates by power transmission; friction members extending outward from the rim of the rotating blocks and arranged at a constant interval to contact a workpiece and remove foreign substances attached to the workpiece; and a connecting part that individually and detachably connects each of the plurality of friction members to the rotating blocks. A pile driver floating soil removal device characterized by comprising a contact increasing member that increases the contact area between the friction member and the work object by connecting the connecting member to the rotating block at an angle, wherein the friction member installed in the connecting member is arranged at a certain angle of inclination from the arrangement direction of the rotating block, and when the work object approaches to be adjacent to the rotating block, the end of the friction member contacts the work object in an inclined state, and the end of the friction member is pressed against the outer wall of the work object, causing the friction member to bend and contact the work object, thereby increasing the contact area as the end and side of the friction member adhere to the outer wall of the work object, and having a multi-purpose brush capable of separating foreign substances attached to the work object from the work object by increasing the contact area between the friction member and the work object.

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