Mounting structure for snow plow blade

Abstract

The disclosed snow removal plow blade mounting structure comprises: a plurality of blades for removing snow accumulated on the road surface during snow removal operations; a plow body that supports the blades and guides the snow removed by the blades toward the edge of the road; and a clamping means that fixes and separates the blades from the plow body by applying a hydraulic pressure fixing force in the same direction as the snow removal pressure direction.

Description

Technology Field

[0001] The present invention relates to a plow blade mounting structure for snow removal, and more specifically, to a plow blade mounting structure for snow removal that can improve the fixing stability and work efficiency of the blade. Background Technology

[0002] In this invention, background technology is provided, and this does not necessarily mean known technology.

[0003] Generally, snow removal operations using a vehicle equipped with a snowplow are essential for road snow removal.

[0004] In snowplows connected to such snowplows, a plate-shaped synthetic resin (rubber, urethane, etc.) blade is generally attached to the lower front of the plow body via bolts and nuts so that it can be detachably mounted. And when the blade wears out due to friction with the road surface, it is cumbersome, but the blade is replaced every time.

[0005] However, conventional shovel blade replacement work required loosening bolts and nuts one by one, removing the worn blade, and then fixing the blade using bolts and nuts again after placing a new blade. This resulted in the problem of requiring a large number of personnel for the blade replacement work and prolonging the time required for the work.

[0006] Furthermore, conventional shovel blade mounting structures had a problem in that the bolt and nut fixing parts were damaged or broken due to the strong pressure the shovel blade received during snow removal operations.

[0007] To solve these problems and ensure the convenience of replacing the shovel blade and the stability of fixing it, some technology has been proposed to fix and detach the shovel blade using hydraulics.

[0008] However, the hydraulic blade fixing method had a problem in that it could not effectively support the direct pressure applied to the blade from the snow removal direction because it uses a hydraulic cylinder or the like to press and fix the blade on the rear side of the plow body. Prior art literature

[0009] Korean Patent Publication No. 10-2197730. The problem to be solved

[0010] The present invention aims to provide a snow removal plow blade mounting structure that enables the plow to be firmly fixed by applying a hydraulic pressure fixing force in the same direction as the snow removal pressure. means of solving the problem

[0011] A general summary of the invention is provided herein, and this should not be understood as limiting the scope of the invention.

[0012] To solve the above-mentioned problem, a snow removal plow blade mounting structure according to any aspect of the present invention may include: a plurality of blades for removing snow accumulated on the road surface during snow removal operations; a plow body that supports the blades and guides the snow removed by the blades toward the edge of the road; and a clamping means that fixes and separates the blades from the plow body by applying a hydraulic pressure fixing force in the same direction as the snow removal pressure direction.

[0013] In a snow removal plow blade mounting structure according to one aspect of the present invention, a seat portion on which blades are seated may be formed along the longitudinal direction of the plow body and stepped toward the rear side of the plow body.

[0014] In a snow removal plow blade mounting structure according to one aspect of the present invention, a plurality of fixing pins are welded to the seat portion so as to protrude from the seat portion on the back side of the seat portion, and plow blades can be mounted on the fixing pins.

[0015] In a snow removal plow blade mounting structure according to one aspect of the present invention, the blades include a fixing part extending along the longitudinal direction of the plow body; and a removal part integrally formed at the lower end of the fixing part along the longitudinal direction of the fixing part; wherein the fixing part is seated on a seat part such that the removal part protrudes outside the lower end of the plow body, and a plurality of mounting holes that are fitted into a fixing pin may be formed in the fixing part.

[0016] In a snow removal plow blade mounting structure according to one aspect of the present invention, the thickness of the fixing part may be formed to have a length equal to or longer than the protruding length of the fixing pin.

[0017] In a snow removal plow blade mounting structure according to one aspect of the present invention, the clamping means may include: a pressure plate disposed on the front side of the plow body; and a hydraulic cylinder installed on the rear side of the plow body to operate the pressure plate to fix and separate the blades from the plow body.

[0018] In a snow removal plow blade mounting structure according to one aspect of the present invention, a pressure plate extends along the longitudinal direction of the plow body, and a plurality of pivot plates are integrally formed on the pressure plate to convert the linear motion of a hydraulic cylinder into rotational motion and transmit it to the pressure plate, wherein one end of the pivot plates is connected at the upper rear side of the pressure plate, and the other end extends to the rear side of the plow body by passing through a through hole formed on the upper side of the seat portion of the plow body, and the other end of the pivot plates can be connected to each other by a pivot shaft rotatably fitted into a plurality of support frames formed on the rear side of the plow body.

[0019] In a snow removal plow blade mounting structure according to one aspect of the present invention, the hydraulic cylinder comprises a cylinder barrel; and a cylinder rod exposed through a rod cover of the cylinder barrel; the head cover of the cylinder barrel facing the rod cover is pivotably connected to the rear surface of the plow body in an up-and-down direction, and the extended end of the cylinder rod can be pivotably connected to a pivot plate in an up-and-down direction.

[0020] In a snow removal plow blade mounting structure according to one aspect of the present invention, the pressure plate can shield the through hole when the blade is fixed.

[0021] In a snow removal plow blade mounting structure according to one aspect of the present invention, the clamping means may be provided in multiple numbers corresponding to a plurality of plow blades, or provided as a single number corresponding to a plurality of plow blades. Effects of the invention

[0022] According to the present invention, since the shovel blade is fixed or released by hydraulic pressure, it provides the effect of significantly reducing the time required to replace the shovel blade and the manpower required for replacement.

[0023] According to the present invention, since the shovel blade is fixed by applying a hydraulic pressure fixing force in the same direction as the snow removal pressure applied to the shovel blade, it provides the effect of fundamentally preventing the shovel blade from detaching from the plow body or the fixing part from being damaged despite strong external pressure received by the shovel blade during snow removal operations.

[0024] The effect of the present invention enables the overcoming of the limitations of conventional shovel blade mounting structures and provides groundbreaking fixation stability in which the shovel blade is firmly maintained even in any harsh snow removal environment. Brief explanation of the drawing

[0025] FIG. 1 is a perspective view showing a snow removal plow with a blade mounting structure according to the present invention. FIG. 2 is an exploded perspective view showing the plow illustrated in FIG. 1 disassembled, and FIG. 3 is a side view of FIG. 1, illustrating the state in which a pressure fixing force is applied to the shovel blade, and FIG. 4 is a side view of FIG. 1, showing a state in which the pressure fixing force on the shovel blade is released. Specific details for implementing the invention

[0026] Hereinafter, an embodiment implementing a snow removal plow blade mounting structure according to the present invention will be described in detail with reference to the drawings.

[0027] FIGS. 1 to 4 are schematic drawings showing a snow removal plow blade mounting structure according to the present invention.

[0028] Referring to FIGS. 1 to 4, a plow (100) having a snow removal plow blade attachment structure according to the present invention comprises a plurality of blades (120) for pushing and removing snow accumulated on the road surface during snow removal work, a plow body (110) that supports the blades (120) and guides the snow removed from the road surface by the blades (120) toward the edge of the road, and a clamping means (130) that applies a pressure fixing force by hydraulic pressure in the same direction as the snow removal pressure direction to fix and separate the blades (120) from the plow body (110).

[0029] First, the plow body (110) is connected at its rear side to a frame (not shown) provided at the front lower side of a snowplow vehicle (not shown), thereby positioning the plow body (110) at the front side of the snowplow vehicle.

[0030] Additionally, the plow body (110) is connected to a plurality of cylinders (not shown) provided in the frame, and the angle is adjusted up and down and left and right by the operation of the cylinders, and the adjusted angle is stably maintained.

[0031] And the plow body (110) is provided with both sides open so that snow removed from the road surface through a plurality of shovel blades (120) can be guided toward the edge of the road.

[0032] Although FIGS. 1 to 4 show a plow body (110) that forms a convex curvature toward the snowplow vehicle side when viewed from the side, anyone will know that the plow body (110) can be provided in a vertical plate shape.

[0033] Here, the connection relationship between the plow body (110), the frame, and the plurality of cylinders is not specifically limited in the present invention.

[0034] That is, if the plow body (110) is connected to the frame and positioned on the front side of the snowplow vehicle, and the angle of the plow body (110) can be adjusted up and down and left and right by the operation of the cylinders, then the plow body (110), the frame, and the cylinders may have any connection relationship.

[0035] Meanwhile, on the front lower side of the plow body (110), a stepped seat portion (112) is formed along the length direction of the plow body (110) toward the rear side of the plow body (110), and a plurality of fixing pins (114) are formed on the seat portion (112) at a predetermined interval along the length direction of the plow body (110).

[0036] In the seat portion (112) formed in this way, shovel blades (120) are seated on fixing pins (114), and the fixing pins (114) are welded so as to protrude from the seat portion (112) on the back side of the seat portion (112).

[0037] The shovel blades (120) are arranged sequentially along the longitudinal direction of the plow body (110) and are fixed to and separated from the plow body (110) by a clamping means (130).

[0038] The plow blades (120) include a fixed portion (122) extended along the longitudinal direction of the plow body (110) and a removal portion (126) integrally formed at the bottom of the fixed portion (122) along the longitudinal direction of the fixed portion (122).

[0039] At this time, the fixing part (122) is mounted on the seat part (112) such that the removal part (126) protrudes from the lower outer side of the plow body (110). To this end, a plurality of mounting holes (124) that are fitted into the fixing pin (114) are formed in the fixing part (122).

[0040] Preferably, the thickness of the fixing part (122) is formed to have a length equal to or longer than the protruding length of the fixing pin (114).

[0041] Meanwhile, the shovel blades (120) are made of a synthetic resin, such as rubber or urethane, that has elasticity so that they can be instantly bent to mitigate the impact when in contact with uneven road surfaces and obstacles on the road surface.

[0042] Also, in FIGS. 1 to 4, a shovel blade (120) is shown with a fixed part (122) and a removal part (126) bent at a predetermined angle, but the fixed part (122) and the removal part (126) may be provided in a flat, vertical plate shape without any bent portions.

[0043] The clamping means (130) may be provided in multiple units corresponding to multiple shovel blades (120), or provided as a single unit corresponding to multiple shovel blades (120).

[0044] These clamping means (130) include a pressure plate (132) positioned on the front side of the plow body (110) and a hydraulic cylinder (138) installed on the rear side of the plow body (110) to operate the pressure plate (132) to fix and separate the shovel blades (120) from the plow body (110).

[0045] The pressure plate (132) extends along the longitudinal direction of the plow body (110), and a plurality of pivot plates (134) are integrally formed on the pressure plate (132) to convert the linear motion of the hydraulic cylinder (138) into rotational motion and transmit it to the pressure plate (132).

[0046] At this time, the pivot plates (134) are spaced apart at a predetermined interval along the longitudinal direction of the pressure plate (132), and one end of the pivot plates (134) is connected to the upper rear side of the pressure plate (132) positioned on the front side of the plow body (110) as illustrated so as not to interfere with the pressure plate (132) pressing the shovel blades (120), and the other end extends through the plow body (110) to the rear side of the plow body (110).

[0047] To this end, a through hole (116) through which pivot plates (134) pass is formed on the upper side of the seat portion (112) of the plow body (110) so as to extend along the longitudinal direction of the plow body (110).

[0048] And, the other ends of the pivot plates (134) extended toward the rear side of the plow body (110) are connected to each other by pivot shafts (136) that are rotatably fitted into a plurality of support frames (118) formed on the rear side of the plow body (110).

[0049] Preferably, the pressure plate (132) shields the through hole (116) when the shovel blade (120) is fixed.

[0050] The hydraulic cylinder (138) includes a cylinder barrel (140) and a cylinder rod (146) exposed through the rod cover (142) of the cylinder barrel (140).

[0051] At this time, the head cover (144) of the cylinder barrel (140) facing the rod cover (142) of the cylinder barrel (140) is connected to the back surface of the plow body (110) so as to be rotatable in the up and down direction.

[0052] And the extension end of the cylinder rod (146) is connected to a pivot plate (134) that extends toward the rear side of the plow body (110) so as to be pivotable in the vertical direction.

[0053] That is, when the hydraulic cylinder (138) retracts the cylinder rod (146) while the fixing part (122) of the shovel blade (120) is seated on the seat part (112) of the plow body (110), the pivot plates (134) rotate toward the front side of the plow body (110) around the pivot axis (136). At this time, the pressure plate (132) rotates toward the shovel blade (120) and applies a pressure fixing force to the shovel blade (120), thereby firmly fixing the shovel blade (120) to the seat part (112).

[0054] Conversely, when the hydraulic cylinder (138) extends the cylinder rod (146), the pivot plates (134) rotate toward the rear side of the plow body (110) around the pivot axis (136), and accordingly, the pressure plate (132) is separated from the shovel blade (120), thereby enabling the fixation and separation of the shovel blade (120).

[0055] The following is a brief description of the snow removal plow blade mounting structure according to the present invention.

[0056] First, in order to fix the shovel blades (120) to the plow body (110), the fixing portions (122) of the plurality of shovel blades (120) are placed on the stepped seat portion (112) provided on the front lower side of the plow body (110).

[0057] At this time, a plurality of mounting holes (124) formed in the fixing part (122) of the shovel blade (120) are fitted into a plurality of fixing pins (114) so ​​that the shovel blade (120) is stably mounted on the seat part (112), and the removal part (126) is positioned to protrude outward from the lower part of the plow body (110) so as to be able to contact the road surface.

[0058] As described above, when the shovel blade (120) is seated on the plow body (110), the hydraulic cylinder (138) of the clamping means (130) is operated to retract the cylinder rod (146).

[0059] At this time, the pivot plates (134) connected to the extension end of the cylinder rod (146) are rotated around the pivot axis (136) toward the front side of the plow body (110) (i.e., toward the blade (120)), and the pressure plate (132) formed integrally with the pivot plate (134) rotates toward the blade (120) and applies a pressure fixing force to the front side of the fixing part (122) of the blade (120), thereby firmly attaching and fixing the blade (120) to the seat part (112) of the plow body (110).

[0060] Preferably, during the process of fixing the shovel blade (120), the pressure plate (132) shields the through hole (116) of the plow body (110) to prevent foreign matter from entering.

[0061] Meanwhile, when separating the shovel blade (120) from the plow body (110), the hydraulic cylinder (138) is operated to extend the cylinder rod (146).

[0062] When the cylinder rod (146) is extended, the pivot plates (134) rotate toward the back side of the plow body (110) around the pivot axis (136), and accordingly, the pressure plate (132) is separated from the shovel blade (120) and releases the pressure fixing force on the shovel blade (120).

[0063] At this time, the shovel blade (120), with the pressure fixing force released, can be easily separated from the seat portion (112) by separating the fixing pin (114) from the mounting hole (124).

[0064] The snow removal plow blade mounting structure according to the present invention formed in this manner fixes the blade (120) by applying a hydraulic pressure fixing force in the same direction as the snow removal pressure applied to the blade (120), so it is possible to fundamentally prevent the blade (120) from detaching from the plow body (110) or the fixing part from being damaged despite the strong external pressure received by the blade (120) during snow removal work.

[0065] This invention enables the overcoming of the limitations of conventional shovel blade mounting structures and provides groundbreaking fixing stability in which the shovel blade is firmly maintained even in any harsh snow removal environment.

[0066] It is stated that the essential technical concept of the present invention is not limited to the embodiments described above, and encompasses a scope that can be easily proposed by a person skilled in the art through substitution or modification.

[0067] Furthermore, since the terms used in the description of the present invention are selected for the convenience of explanation, in grasping the essential technical concept of the present invention, they should not be limited to their dictionary meanings but should be appropriately interpreted in a sense consistent with the technical concept of the present invention.

Claims

Claim 1 A plurality of blades for removing snow accumulated on the road surface during snow removal operations; a plow body that supports the blades and guides the snow removed by the blades toward the edge of the road; and a clamping means that applies a hydraulic pressure fixing force in the same direction as the snow removal pressure to fix and detach the blades from the plow body; wherein a seat portion on which the blades are seated is formed at the lower front side of the plow body in a stepped manner along the longitudinal direction of the plow body toward the rear side of the plow body, and the clamping means comprises a pressure plate disposed on the front side of the plow body; A snow removal plow blade mounting structure comprising: a hydraulic cylinder installed on the rear side of the plow body to operate the pressure plate to fix and separate the blades from the plow body; wherein the pressure plate extends along the longitudinal direction of the plow body, and a plurality of pivot plates are integrally formed on the pressure plate to convert the linear motion of the hydraulic cylinder into rotational motion and transmit it to the pressure plate, wherein one end of the pivot plates is connected at the upper rear side of the pressure plate, and the other end extends to the rear side of the plow body by passing through a through hole formed on the upper side of the seat portion of the plow body, and the other end of the pivot plates is connected to each other by a pivot shaft rotatably fitted into a plurality of support frames formed on the rear side of the plow body. Claim 2 delete Claim 3 A snow removal plow blade mounting structure according to claim 1, wherein a plurality of fixing pins are welded to the seat portion so as to protrude from the seat portion on the rear side of the seat portion, and the plow blades are mounted on the fixing pins. Claim 4 A snow removal plow blade mounting structure according to claim 3, wherein the blades comprise: a fixing portion extending along the longitudinal direction of the plow body; and a removal portion integrally formed at the lower end of the fixing portion along the longitudinal direction of the fixing portion, wherein the fixing portion is seated on the seat portion such that the removal portion protrudes outside the lower end of the plow body, and a plurality of mounting holes formed in the fixing portion for fitting into the fixing pin. Claim 5 A snow removal plow blade mounting structure according to claim 4, wherein the thickness of the fixing part is formed to have a length equal to or longer than the protruding length of the fixing pin. Claim 6 delete Claim 7 delete Claim 8 A snow removal plow blade mounting structure according to claim 1, wherein the hydraulic cylinder comprises: a cylinder barrel; and a cylinder rod exposed through a rod cover of the cylinder barrel; the head cover of the cylinder barrel facing the rod cover is pivotally connected in an up-and-down direction to the rear surface of the plow body, and the extension end of the cylinder rod is pivotally connected in an up-and-down direction to one of the pivot plates. Claim 9 Claim 1, wherein the pressure plate is a snow removal plow blade mounting structure that shields the through hole when the blade is fixed. Claim 10 A snow removal plow blade mounting structure according to claim 1, wherein the clamping means is provided in a plurality corresponding to a plurality of the plow blades or is provided as a single unit corresponding to a plurality of the plow blades.

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