JP3831126B2 - Acupuncture bucket device for human holes - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to earth and sand dredge devices, and more particularly to an apparatus for dripping sludge and earth and sand collected at the bottom of a manhole in a sewer.
[0002]
[Prior art]
In the manhole for the sewer, earth and sand are accumulated under the sewer, and various dredging devices for the dredger have been proposed. In particular, in the manhole in the overturned portion, 1) the overturned manhole has a large depth, and 2) the opening is made by a small-diameter manhole cover (which is opened and closed by human power, so that it can be made as small as possible). There is a special feature that it is closed and the bottom is expanded to become the bottom of the large cross section, and 3) the gravel with high specific gravity and the solid sediment layer are deposited on the bottom of the manhole. In addition, in relation to 2), 4) the steps are arranged vertically for the operator to descend, and the upper small diameter part and the lower large diameter part share a part of the wall surface and are biased. Steps are placed in this shared section.
[0003]
Therefore, the present applicants previously added a unit-length column body as a dredging method and dredging apparatus for sedimentary earth in a pass-through manhole in JP-A-10-159171 (hereinafter referred to as a prior invention). Insert the guide pillar into the manhole while forming the guide pillar of the book, install the guide pillar in the manhole, and attach the bucket for dredging along this guide pillar so that it can move up and down, The present invention has been proposed that moves the guide column upward and discharges it to the ground, and further enables the lower portion of the guide column to be ejected.
According to this prior invention, sufficient dredging ability can be exerted even by increasing the depth of the overpass, and furthermore, work in a confined space on the ground can be performed. It is suitable not only for special features 1), 2) and 3) but also for eccentric human holes in 4).
However, in addition to the hydraulic cylinder for opening and closing the bucket bucket, a hydraulic cylinder for jumping out the lower guide column is required, which complicates the structure and the hydraulic system.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and can cope with the special situation of the overturning manhole as in the prior invention, solves the problems of the prior invention, has a simple structure, and simplifies the hydraulic system. It is an object of the present invention to provide an easy-to-reach manhole bucket device.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the manhole paddle bucket apparatus of the present invention adopts the following configuration.
That is, the tip of the vertical shaped liftable post long to be inserted into the person hole through the opening of the manhole, is mounted while maintaining the elevating post coaxially to dredge sediment manhole bottom dredging A vertically elongated main body is constituted by a fixed bucket element 1 and a movable bucket element 2 which are substantially equally divided and abut against each other with a contact surface, and the movable bucket element 1 and the fixed bucket element in the upper part of the 1, wherein the movable bucket element 2 is rotated to the central pivoting pin 3 from abutment surface is held with an eccentric position of the movable bucket element 2 closer to the said fixed bucket element 1 closing It is freely, between the two bucket elements 1, 2, characterized in that the hydraulic cylinders 4 for opening and closing the interior of the both the bucket elements, which are attached via a pin 5, 6 at both ends.
In the above configuration, 1) the bucket body can be rotated on the same axis of the lifting post, 2) the bucket body can be rotated on the same axis of the lifting post via the fixed bucket element, and 3) the bucket body. the rotation of the relative lifting post being fixable at continuously or discontinuously appropriate position, 4) the lower part of at least the movable bucket element continuous with the fixed bucket with a curvature, the movable bucket elements highest It is an optional matter that the tangent of the curvature portion is substantially vertical when moved.
[0006]
(Function)
When the open / close hydraulic cylinder 4 is in a contracted state, the movable bucket element 2 is in a closed state.
When the opening / closing hydraulic cylinder 4 is extended, the movable bucket element 2 rotates about the rotation pin 3 and opens. Since the rotation pin 3 is eccentric, the horizontal opening extends far and a large scraping operation is obtained.
When the hydraulic cylinder for opening and closing is contracted, the movable bucket element 2 rotates around the rotation pin 3 and closes. Since the rotation pin 3 is eccentric, the locus of the lower end thereof is deepest at the vertical position of the rotation pin 3 and exhibits a great heel ability.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a manhole urn bucket apparatus of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of a manhole bag apparatus (hereinafter, simply referred to as a “bag bucket”) according to the present invention.
That is, FIG.1 and FIG.2 shows the external appearance structure of the main bucket bucket B, and FIGS.
[0008]
The saddle bucket B has a main body composed of a fixed bucket element 1 and a movable bucket element 2, and the movable bucket element 2 can be opened and closed via a rotation pin 3 held by the fixed bucket element 1. A hydraulic cylinder 4 for opening and closing is mounted between 1 and 2 via pins 5 and 6 at both ends thereof. Furthermore, the upper part of this bucket B is provided with the connection part 7 used for a connection with a post part.
[0009]
Hereinafter, the detailed configuration of each part will be described.
Bucket body The bucket body consists of two fixed and movable bucket elements 1 and 2 that are substantially equally divided, closed with a contact surface (equal line), and in the closed state, an elongated rectangular box Make a body.
Fixed bucket element 1
The fixed bucket element 1 is formed with a three-sided and bottom side plate 1a and a top plate 1b to form a rectangular box-shaped outer shell as a whole, and the upper side surface of the side plate 1a has a trapezoidal shape and projects forward. A horizontal beam 1c is installed on the upper portion of the side plate 1a, that is, between the protruding portions of the side plate 1a, and two mounting ribs 1d that are parallel to each other at a predetermined interval above the inside are provided with the horizontal beam 1c and the outside. Fixed to the shells 1a and 1b. Two mounting ribs 1e protruding further forward are fixed to the horizontal beam 1c in parallel. A claw 1f projects downward from the lower end of the fixed bucket element 1.
Movable bucket element 2
The movable bucket element 2 forms a rectangular box-like body as a whole. The side plate 2a forms a generally rectangular box-shaped outer shell according to the fixed bucket element 1, but the upper portion of the side plate 2a is provided with a recessed portion for receiving the protruding portion of the fixed bucket element 1. In addition, although an upper surface board is not provided in this embodiment, it is attached suitably. In the upper part inside the side plate 1a, two mounting ribs 2b for the movable portion are fixedly installed while maintaining the same height as the rib 1e of the fixed bucket element 1. In addition, two parallel mounting ribs 2c for the opening / closing operation part are fixed below.
The movable bucket element 2 is further characterized in that the lower part A of the outer shell is formed to have a predetermined curvature (R) and is smoothly connected to the lower end of the fixed bucket element 1. In the portion A, when the movable bucket element 2 is opened and the maximum opening is taken, the tangent line becomes vertical.
[0010]
Rotating pin 3
The rotation pin 3 is held by the mounting rib 1e of the fixed bucket element 1 and the mounting rib 2c of the movable bucket element 2, and is rotatably mounted. A flange 3a for preventing extraction is stretched at both ends of the rotation pin 3, and bushes 10 and 11 are provided between the flange 3a and the mounting ribs 1e and 2c so as to maintain a gap.
It should be noted that the pivot pin 3 is eccentric by a distance e from the center of the bucket body, that is, the bisector, and has a distance h from the tip of the bucket body. That is, as e and h are larger, the operation range of the movable bucket element 2, in other words, the dredging ability is increased. The e and h are defined by the stroke of the hydraulic cylinder 4.
[0011]
Open / close hydraulic cylinder 4
The open / close hydraulic cylinder 4 includes a cylinder portion 4a and a piston portion 4b, and an end portion on the cylinder portion 4a side is attached to an attachment rib 1d of the fixed bucket element 1 via a pin 5, and an end portion of the piston portion 4b is attached to the end portion of the piston portion 4b. It is attached to a mounting rib 2 c of the movable bucket element 2 via a pin 6. At the maximum stroke of the opening / closing hydraulic cylinder 4, the opening / closing hydraulic cylinder 4 is horizontal.
[0012]
Connection part 7
The connection portion 7 is connected to the lifting / lowering post of the saddle device, and rotationally positions the bucket body. The connection portion 7 has a flange 13a formed at the upper end, and a columnar column 13 in which a base portion is directly fixed to the upper surface plate 1b of the fixed bucket element 1 and a flange 13a of the column 13 are rotatably held. And a lock pin 15 that is attached to the head bracket 14 and regulates the relative rotation between the support column 13 and the head bracket 14. The head bracket 14 has a lower end of an upper lift post 103 (described later). Attached to the flange of the screw and detachably attached with a bolt / nut fastener 16.
FIG. 6 schematically shows the configuration of the connecting portion 7. The screw portion 15 a of the lock pin 15 is screwed into the screw hole 14 a of the head bracket 14, and the lock pin 15 is tightened so that the tip end portion 15 b is attached to the column 13. This is pressed against the peripheral surface of the flange 13a to restrict the rotational movement of the head bracket 14. The lock pin 15 can be engaged continuously or discontinuously. In the present embodiment, a discontinuous type is adopted, and the distal end portion 15b of the lock pin 15 is fitted into an engagement hole 13b that is recessed in the peripheral surface of the flange portion 13a. Reference numeral 14b denotes a bolt insertion hole formed in the head bracket 14, and the bolt / nut 16 is inserted through the bolt insertion hole 14b and a bolt insertion hole (not shown) of the flange of the elevating post 103.
[0013]
(Opening / closing operation of movable bucket element 2)
When the open / close hydraulic cylinder 4 is in a contracted state, the movable bucket element 2 is in a closed state.
When the opening / closing hydraulic cylinder 4 is extended, the movable bucket element 2 rotates about the rotation pin 3 and opens. When the opening / closing hydraulic cylinder 4 takes the maximum stroke, the opening / closing hydraulic cylinder 4 is horizontal, and the movable bucket element 2 has a maximum opening degree in an inclined state. At this time, the tangent of the A portion at the tip is vertical. Since the rotation pin 3 is more eccentric than the bucket bisector, the opening in the horizontal direction extends far and a large scraping operation is obtained.
When the opening / closing hydraulic cylinder 4 is contracted, the movable bucket element 2 rotates around the rotation pin 3 and closes. Since the rotation pin 3 is eccentric, the locus of the lower end passes through the lowest point at the vertical position of the rotation pin 3 and bites into the earth and sand.
[0014]
(Installation of main bucket B)
The main basket bucket B is used by being attached to the lower end of an elevating post as an insertion means into the human hole of the human hole dredge device. The dredge device is normally mounted on a vehicle, is movable, has a hydraulic drive source, and operates the hydraulic actuator (actuator) of each part of the dredger device by its drive. The hydraulic actuator B, that is, the open / close hydraulic cylinder 4 is also interlocked with this.
[0015]
(Operation and effect of the embodiment)
The main bucket bucket B having the above structure is attached to the lower end of the lifting post of the dredger device, and the dredging work of the earth and sand in the manhole is performed.
7 to 9 show the main work procedure. In the figure, P represents a human hole, O represents an opening of the human hole P, and Q represents sedimentation sediment deposited on the bottom of the human hole P. Further, H is a vehicle, which is equipped with a dredger device S and constitutes a so-called dredger working vehicle. The vehicle H is fixed by outriggers J and K. The dredger device S is mounted on the swivel frame 101 installed on the vehicle H in a swingable and undulating manner, the lifting guide 102 which is attached to the front end of the swiveling frame 101 and guides the lifting / lowering of the lifting post, and is held by the lifting guide 102. The lift post 103 is extendable and retractable by itself. In addition, these structures are based on a normal work vehicle.
Hereinafter, it demonstrates according to a construction procedure. In this case, in the human hole P, the small-diameter portion of the upper portion P1 and the enlarged-diameter portion of the lower portion P2 are eccentric, and the wall surface is partially shared.
[0016]
(1) The dredge device S is guided to the vicinity of the human hole P with the dredger working vehicle H, and the lifting post 103 is erected by the turning frame 101. Thereafter, the lock pin 15 of the rotary connecting portion 7 of the main bucket bucket B is positioned so that the fixed bucket 1 side of the main bucket bucket B at the lower end of the elevating post 103 is set along the wall surface of the manhole P. To do.
[0017]
(2) Lower the lifting post 103. The main bucket bucket B has a narrow width and easily passes through the opening O of the human hole P.
[0018]
(3) The main bucket bucket B reaches the bottom of the manhole P, and its claw 1f is placed on the surface of the earth and sand Q. Thereafter, the opening / closing hydraulic cylinder 4 is opened to open the movable bucket element 2. With the full stroke of the opening / closing hydraulic cylinder 4, the opening / closing hydraulic cylinder 4 becomes horizontal, and the movable bucket element 2 is fully opened.
[0019]
(4) The elevating post 103 is further lowered, and the claw portion 1f of the fixed bucket element 1 is pushed into the earth and sand Q.
Thereafter, the opening / closing hydraulic cylinder 4 is closed, the movable bucket element 2 is moved in the closing direction, and the soil Q is dredged.
At this time, the tip of the movable bucket element 2 draws a circular locus around the rotation pin 3, but its lowermost end is on the vertical line of the rotation pin 3, and the tip further digs deeper and the tip further advances. Closes with element 1. Thereby, the movable bucket element 2 can crawl the earth and sand Q from far away and downward.
[0020]
(5) The main post bucket B is lifted to the ground by contracting the lifting post 103 and pulled upward, and a transport vehicle (dump truck) is guided below the main post bucket B and the main bucket bucket B is opened.
[0021]
(6) After that, if it is necessary to change the phase of the bucket body, the lock pin 14 is released, the bucket body is rotated to a desired position, and is fixed by the lock pin 14 again.
[0022]
(7) Thereafter, the above-described steps (2) to (6) are repeated, so that the bottom of the human hole P is entirely covered.
[0023]
According to the kite bucket B of the present embodiment, the movable bucket element 2 is moved away from the fixed bucket element 1 around the rotation pin 3 in the eccentric position with respect to the fixed bucket element 1 in the opening operation. Open wide and get a big scraping action. As a result, the movable bucket element 2 reaches the back of the eccentric portion of the human hole without causing any residue in the human hole or the overlying human hole in which the lower part of the large diameter is eccentric with respect to the upper part of the small diameter. , Effective dredging work can be carried out.
Further, in the closing operation, the lower end of the movable bucket element 2 passes through the lowest point at the vertical position of the rotation pin 3 and bites into the earth and sand, effectively scooping up the earth and sand.
Furthermore, in the fully open state of the movable bucket element 2, the lower end portion thereof is vertical, and the position closest to the wall surface of the human hole can be taken to maximize the range of the heel.
Since the main bucket bucket B has a simple structure and a single hydraulic cylinder is used, the hydraulic system is simplified, and the manufacturing cost can be reduced.
[0024]
The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention.
[0025]
【The invention's effect】
According to the human-hole scissor bucket device of the present invention, the movable bucket element opens widely in the opening operation around the rotation pin at the eccentric position far from the fixed bucket element with reference to the fixed bucket element. , Get a big scraping action. Thereby, in the human hole or the overturned human hole in which the lower part of the large diameter is eccentric with respect to the upper part of the small diameter, the movable bucket element reaches the back of the eccentric part of the human hole, without causing a residue. Effective dredging work can be carried out.
Further, in the closing operation, the lower end of the movable bucket element passes through the lowest point at the vertical position of the rotation pin and bites into the earth and sand, effectively scavenging the earth and sand.
Furthermore, since the main bucket is simple in structure and uses a single hydraulic cylinder, the hydraulic system is simplified and the manufacturing cost can be reduced.
Furthermore, opening and closing hydraulic cylinder is arranged between the two bucket elements, there is no arrangement in the bucket body outside the hydraulic cylinder, without being restricted to tall by arrangement of hydraulic cylinders, take long tall bucket Body Can increase the soot capacity accordingly.
Furthermore, since the main bucket bucket is rotatable with respect to the lifting post, the efficiency of the dredging work and the earth removing work is improved.
[Brief description of the drawings]
FIG. 1 is a side view showing the entirety of an embodiment of a manhole scissor bucket device according to the present invention (viewed in the direction of arrow 1 in FIG. 2).
FIG. 2 is a front view thereof (a view taken in the direction of arrow 2 in FIG. 1).
FIG. 3 is an internal configuration diagram of the bucket body (cross-sectional view taken along line 3-3 in FIG. 2).
4 is a cross-sectional view taken along line 4-4 of FIG. 3;
FIG. 5 is an operation diagram of the bucket body.
FIG. 6 is a schematic cross-sectional view showing a configuration of a connection portion.
FIG. 7 is a schematic diagram of dredging work.
8 is a cross-sectional view taken along line 8-8 in FIG.
FIG. 9 is a schematic diagram of dredging work.
[Explanation of symbols]
B: dredged bucket, P: human hole, O: opening, Q: sediment, 1 ... fixed bucket element, 2 ... movable bucket element, 3 ... movable pin, 4 ... hydraulic cylinder for opening and closing, 5, 6 ... pin

Claims (5)

Through the opening of the manhole to the tip of the vertical shaped liftable post long to be inserted into the person hole, it is mounted while maintaining the elevating post coaxial with dredging bucket dredge sediment manhole bottom There,
A vertically elongated main body is composed of a fixed bucket element and a movable bucket element that are substantially equally divided and contact each other with a contact surface,
In the upper part of the fixed bucket element and the movable bucket element, said movable bucket element, times about said pivot pin being held from contact surface with a eccentric position of the movable bucket elements closer to the fixed bucket element It can be opened and closed freely,
A hydraulic cylinder for opening and closing is mounted between the bucket elements via pins at both ends inside the bucket elements .
A urn bucket device for human holes characterized by the above. The mandrel bucket device according to claim 1, wherein the bucket body is rotatable on the same axis as the lifting post. The bucket main body for manholes according to claim 2, wherein the bucket body is rotatable on the same axis as the lifting post via a fixed bucket element. The dredge bucket apparatus for manholes according to any one of claims 2 and 3, wherein the rotation of the bucket body with respect to the lifting post can be fixed continuously or discontinuously at an appropriate position.   2. The manhole according to claim 1, wherein at least a lower part of the movable bucket element is connected to the fixed bucket with a curvature, and when the movable bucket element moves to the uppermost position, a tangent line of the curvature part is substantially vertical.浚 渫 Bucket device.

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