JP2020062617A - Screening equipment and tube embedding method - Google Patents

Abstract

To provide screening equipment which can easily discharge a screened object and input the same to a target part.SOLUTION: In screening equipment 5 which screens an object including earth, sand and so on, a supply port 11 and a sieve component 12 for opening and closing the supply port 11 are provided at an upper part of a container 10, an exhaust port for discharging the object fed into the container 10 from the supply port 11 and a door 20 which opens and closes the exhaust port are provided on the container 10, and the sieve component 12 closes the supply port 11 in a lying posture, and rotates upwards from the lying posture, thereby opening the supply port 11.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a sieving device for sieving, for example, soil generated when excavating the ground, and an embedding method for burying a pipe in the ground.

  Conventionally, as this type of sieving machine, for example, as shown in FIG. 13, there is a sieving machine 130 having a sieving machine main body 131 and a sediment carrier 132. The sieving machine main body 131 has a sieving container 133 made of wire mesh. Further, the earth and sand carrier 132 has a sand storage tank 134 for receiving the earth and sand having a small particle size which has passed through the sieving container 133.

  By moving the earth and sand carrier 132 with respect to the sieving machine body 131, the sand storage tank 134 can be moved forward and backward below the sieving container 133.

  According to this, for example, when the ground 136 is excavated to form the groove 137, the generated soil 138 generated by excavation is supplied to the sieving container 133 and sifted. As a result, the small particle size sand 139 that has passed through the sieving container 133 is dropped and stored in the sand storage tank 134, and the large particle size sand 140 that does not pass through the sieving container 133 remains in the sieving container 133.

  Then, as shown in FIG. 14, when the small particle size sand 139 is thrown into the groove 137, the earth and sand carrier 132 is moved away from the sieving machine main body 131, and the sand storage tank 134 is evacuated from below the sieving container 133. After that, the earth and sand carrier 132 is tilted, and the earth and sand 139 having a small particle size in the sand storage tank 134 is discharged and put into the groove 137.

  In addition, when the large-grained sand 140 is put into the groove 137, the sand carrier 132 is moved to be separated from the sieving machine body 131 in the same manner as described above, the bottom of the sieving container 133 is opened, and the sieving container 133 is opened. A large particle size of sand 140 is dropped and put into the groove 137.

  The above-mentioned sieving device is described in, for example, Patent Document 1 below.

Utility model registration No. 3078447

  However, in the above-mentioned conventional type, for example, when the small-diameter sand 139 is put into the groove 137 and then the large-diameter sand 140 is put, the sand carrier 132 is moved to move the sieve 130 to the sieve main body. Since 131 and the earth and sand carrier 132 have to be separated, the work required time and effort.

  Further, when the small-diameter sand 139 is put into the groove 137, the small-diameter sand 139 in the sand storage tank 134 is discharged by inclining the earth-sand carrier 132 separated from the sieving machine body 131, so It took a lot of work to tilt. As described above, in the conventional sieving machine 130, there is a problem that it takes time and effort to discharge the sieved earth and sand 139, 140 (objects) from the sieving machine 130 and to put them into a target location such as the groove 137. is there.

  It is an object of the present invention to provide a sieving device and a tube burying method that can easily discharge a sieved object and put it into a target location.

In order to achieve the above object, the first invention is a sieving device for sieving an object containing at least one of earth and sand and gravel,
A supply port and a sieving member for opening and closing the supply port are provided on the upper part of the container,
A discharge port for discharging the target object supplied into the container from the supply port and a door for opening and closing the discharge port are provided in the container,
The sieving member closes the supply port in the sideways posture and opens the supply port by rotating upward from the sideways posture.

  According to this, by supplying the target object on the sieving member in the sideways posture in which the supply port is closed, the target object is sieved by the sieving member, and the target object having a small particle size passing through the sieving member is stored in the container. It is dropped and stored. In addition, an object having a large particle size that does not pass through the sieving member remains on the sieving member.

  After that, by opening the door and opening the discharge port, it is possible to easily discharge the target object having a small particle diameter in the container from the discharge port and put it in the target location.

  Further, by rotating the sieving member upward from the sideways posture, the sieving member is tilted, and the object having a large particle size on the sieving member is rolled down and discharged from the sieving member. As a result, an object having a large particle size can be easily discharged from the sieving member and put into a target location. As described above, the sieved object can be easily discharged from the sieve and put into the target location.

  The sieving machine according to the second aspect of the present invention is provided with a plurality of moving wheels at the bottom of the container.

  According to this, the sieving device can be easily moved to the target location.

In the sieving device according to the third aspect of the present invention, an inclined plate inclined downward toward the discharge port is provided in the container,
The object supplied into the container from the supply port is stored on the inclined plate.

  According to this, with the object of small particle size stored in the container, by opening the door and opening the discharge port, the object of small particle size in the container moves toward the discharge port on the inclined plate. Since it slides down, it is possible to easily discharge the target having a small particle size from the discharge port.

The fourth invention is a burying method for burying a pipe in the ground using the sieving machine according to any one of the first to third inventions,
An excavation step of excavating the ground to form a groove,
A sieving step of sieving the generated soil generated by excavation into small particle size soil having a predetermined size or less and large particle size soil having a larger size than a predetermined size,
A piping process in which the pipe is placed in the groove,
A first backfilling step in which small-diameter soil is put into the groove and the surroundings of the pipe are backfilled with small-diameter soil,
A second backfilling step in which a large-grain-size soil is filled and backfilled on the small-grain-size soil layer formed in the groove in the first backfilling step;
In the sieving process, in a state where the supply port of the sieving device is closed by the sieving member, the generated soil is supplied onto the sieving member to perform sieving,
In the first backfilling process, the door of the sieving machine is opened, the small particle size soil stored in the container is discharged from the discharge port, and is put into the groove.
In the second backfilling step, the sieving member of the sieving device is rotated and tilted, and the large particle size soil on the sieving member is put on the small particle size soil layer in the groove.

  According to this, since the pipe is embedded in the layer of small-sized soil, the outer surface of the pipe does not contact the layer of large-sized soil, and it is possible to prevent the outer surface of the pipe from being damaged. , The degree of compaction around the pipe is improved.

  Further, since the first and second backfilling steps are performed by using the generated soil, waste is eliminated, and the processing amount and cost based on the regulation of the construction by-product are reduced.

  As described above, according to the present invention, it is possible to easily discharge the sieved object and put it into the target location.

It is a top view which shows the excavation process of the pipe burying method using the sieving machine in the 1st Embodiment of this invention. FIG. 3 is a sectional view of the sieving device. It is a XX arrow line view in FIG. It is a XX arrow line view in FIG. It is a figure showing the 1st backfilling process of the method of burying a pipe using the same sieving machine. FIG. 8 is a diagram showing a second backfilling step of the method for burying a pipe using the same sieving device. FIG. 5 is a diagram showing a piping step of the method for burying a tube using the sieving machine. FIG. 5 is a sectional view of a groove backfilled by a pipe burying method using a sieving machine. FIG. 8 is a diagram illustrating a method in which a part of the method of burying a pipe using a sieving machine is changed. It is sectional drawing of the sieving machine in the 2nd Embodiment of this invention. It is a XX arrow line view in FIG. It is a YY arrow line view in FIG. It is a side view of the conventional sieving device. FIG. 6 is a diagram for explaining a pipe embedding method using the same sieving device.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
In the first embodiment, as shown in FIG. 1, 1 is a sieving device for sieving an object 2 containing at least one of earth and sand and gravel. The sieving device 1 has a plurality of sieving devices 5 arranged in a line.

  As shown in FIGS. 2 to 4, the sieving device 5 has a rectangular box-shaped container 10. A supply port 11 (see FIG. 9) that opens upward and a sieving member 12 that opens and closes the supply port 11 are provided at the top of the container 10. The sieving member 12 is formed in a quadrangular shape by a metal net 14 having a predetermined opening.

  One end of the sieving member 12 is attached to the upper end of the container 10 via a hinge 15. The hinge 15 has a rotatable hinge shaft 16 in the horizontal direction. The sieving member 12 is attached to the hinge shaft 16 and is rotatable about the hinge shaft 16 in the up-down direction. As shown by the solid line in FIG. , The supply port 11 is opened by rotating upward from the closed position S as shown by the phantom line in FIG.

  A handle 18 for rotating the sieving member 12 is provided at one end of the hinge shaft 16.

  Assuming that the side on which the hinge shaft 16 is provided is the front surface of the container 10, a discharge port 19 (FIG. 5) for discharging the object 2 supplied from the supply port 11 into the container 10 is provided at the lower part of one side surface of the container 10. And a door 20 for opening and closing the discharge port 19 are provided.

  The upper end of the door 20 is rotatably attached to one side surface of the container 10 via a hinge 23. The door 20 is provided with a stopper (not shown) that fixes the door 20 in the closed position.

An inclined plate 24 that is inclined downward toward the discharge port 19 is provided in the container 10. The object 2 supplied from the supply port 11 into the container 10 is stored on the inclined plate 24. At the four corners of the lower end of the container 10, a plurality of moving casters 26 (an example of wheels) are provided. .

  The operation of the above configuration will be described below.

  As shown in FIG. 2, the target object 2 is sieved by the sieving member 12 by supplying the target object 2 onto the sieving member 12 that is in the horizontal position at the closed position S and has the supply port 11 closed. The small particle size object 2a that has passed through the wire netting 14 of the sieving member 12 drops from the supply port 11 into the container 10 and is stored therein. Further, the object 2b having a large particle size that does not pass through the wire net 14 remains on the wire net 14. Note that the large particle size object 2b that does not pass through the metal net 14 may contain gravel.

  After that, as shown in FIG. 5, by opening the door 20 and opening the discharge port 19, it is possible to easily discharge the object 2a having a small particle size in the container 10 from the discharge port 19 and put it into a target location. You can At this time, the object 2a having a small particle size inside the container 10 slides down on the inclined plate 24 toward the discharge port 19, so that the object 2a having a small particle size can be easily discharged from the discharge port 19.

  Further, as shown in FIG. 6, by moving downwards while holding the handle 18, the sieving member 12 pivots upward from the closed position S and tilts, and the object 2b having a large particle size on the wire netting 14 moves. It rolls down and is discharged from above the sieving member 12. As a result, the object 2b having a large particle size can be easily discharged from the top of the sieving member 12 and put into the target location. As described above, the screened objects 2a and 2b can be easily discharged from the screening device 5 and put into a target location.

  Further, since the plurality of casters 26 are provided at the lower end portion of the container 10, it is possible to easily move to the target location by pressing the sieving device 5.

  The burying method of burying the pipe 35 in the ground using the sieving machine 5 will be described below.

  The burying method includes an excavating step, a sieving step, a piping step, a first backfilling step, and a second backfilling step.

  In the excavation step, as shown in FIG. 1, an excavator 30 such as a backhoe is used to excavate the ground 31 to form a groove 32. Then, the sieving device 5 is arranged along the groove 32. At this time, the outlet 19 side of the sieving device 5 is opposed to the groove 32.

  In the sieving process, as shown in FIG. 2, the generated soil 34 (an example of an object) generated by the excavation in the excavating process is supplied onto the sieving member 12 at the closed position S of the sieving device 5 and the size is equal to or less than a predetermined size. The small-sized soil 34a and the large-sized soil 34b larger than a predetermined size are sieved. The small particle size soil 34a passes through the wire mesh 14 of the sieving member 12 and is stored in the container 10 through the supply port 11, and the large particle size soil 34b remains on the wire mesh 14 of the sieving member 12.

  In the piping step, the pipe 35 is arranged in the groove 32 as shown in FIG. For example, after the groove 32 is excavated by the length of the three pipes 35 in the excavation step, two pipes 35 are arranged in the groove 32, and these two pipes 35 are joined together.

  In the first backfilling step, as shown in FIG. 5, the door 20 of the sieving machine 5 is opened to open the discharge port 19, and the small particle soil 34a in the container 10 is discharged from the discharge port 19 to form the groove. 32 (an example of a target location), and the periphery of the pipe 35 is backfilled with soil 34a having a small particle size. As a result, a layer 37 (see FIG. 6) of the soil 34a having a small particle size is formed in the groove 32.

  In the second backfilling step, the direction of the sieving device 5 is changed by 90 ° so that the hinge 15 side faces the groove 32 as shown in FIG. 6. Then, the handle 18 is pushed down, and the sieving member 12 is rotated upward from the closed position S to be inclined. As a result, the large-diameter soil 34b on the sieving member 12 rolls down and is discharged from above the sieving member 12 and put into the groove 32. A layer 38 of diameter soil 34b (see FIG. 8) is formed.

  After that, as shown in FIG. 8, the upper side of the layer 38 of the soil 34b having a large particle size is paved with asphalt 39 or the like.

  According to the embedding method of the pipe 35 as described above, since the pipe 35 is embedded in the layer 37 of the soil 34a having a small particle size, the outer surface of the pipe 35 has a layer of the soil 34b having a large particle size that may contain gravel. 38, the outer surface of the pipe 35 can be prevented from being damaged, and the degree of compaction around the pipe 35 is improved.

  Further, since the generated soil 34 is used to perform the first and second backfilling steps, waste is eliminated, and the processing amount and cost based on the regulation of the construction by-product are reduced.

  Further, in the method of burying the pipe 35 as described above, the following is also possible.

  In the sieving step, as shown in FIG. 2, the generated soil 34 is supplied onto the sieving member 12 at the closed position S of the particular sieving device 5 for sieving, and then as shown in FIG. The sieving member 12 of the empty sieving machine 5 (left sieving machine 5) adjacent to the sieving machine 5 (right sieving machine 5) is rotated upward from the closed position S to open the supply port 11. , Rotating the sieving member 12 of the specific sieving machine 5 upward from the closed position S, discharging the large-sized soil 34b from above the sieving member 12 of the particular sieving machine 5, and an adjacent empty sieve It is put into the supply port 11 of the divider 5. As a result, the large-diameter soil 34b is stored in the container 10 of the adjacent sieving device 5.

As described above, since the small particle size soil 34a can be stored in the container 10 of the specific sieving machine 5 and the large particle size soil 34b can be stored in the container 10 of the adjacent sieving machine 5, In the first backfilling process, by opening the door 20 of the specific sieving machine 5, the small particle size soil 34a in the container 10 of the specific sieving machine 5 is discharged from the discharge port 19 and put into the groove 32. can do. Further, in the second backfilling step, by opening the door 20 of the adjacent sieving device 5, the large particle size soil 34b in the container 10 of the adjacent sieving device 5 is discharged from the discharge port 19 and the groove 32. Can be thrown into.
(Second embodiment)
In the second embodiment, as shown in FIGS. 10 to 12, one end (front end) of the sieving member 12 is attached to the upper end of the container 10 via a hinge 15. The handle 18 is attached to one side of the sieving member 12 and extends in the other direction (rearward) from the other end (rear end). The hinge 15 is located above the discharge port 19.

  According to this, as shown by the phantom line in FIG. 10, by moving upward with the handle 18, the sieving member 12 pivots upward from the closed position S and tilts, and the large particle size on the wire netting 14 is increased. The target object 2b is rolled down and discharged from above the sieving member 12.

  In each of the above-described embodiments, the plurality of casters 26 are provided at the lower end of the container 10, but all the casters 26 may be freely rotatable wheels, or some casters 26 may be freely rotatable wheels. The remaining casters 26 may be fixed wheels whose orientation is fixed.

  In each of the above-described embodiments, sieving can be performed without providing the sieving device 5 with other power means such as an electric motor, so that the sieving device 5 can be made compact and lightweight, and a power source and the like can be secured. Since there is no need, the degree of freedom in installation is improved.

  In each of the above-mentioned embodiments, as shown in FIG. 9, a plurality of sieving machines 5 are arranged adjacent to each other, but these sieving machines 5 may be connected to each other via a detachable connecting member. . In this way, by connecting a plurality of sieving machines 5 via a connecting member, the large-sized soil 34b is discharged from above the sieving member 12 of the specific sieving machine 5 and the adjacent empty sieving machine. It can be surely charged into the supply port 11 of No. 5. Further, as shown in FIG. 7, when burying the pipe 35, it is possible to easily arrange a plurality of connected sieves 5 collectively at necessary predetermined locations on the construction site. Efficiency is improved.

  In each of the above-described embodiments, the sieving machine 5 is described in a state after assembly, but disassembling it into a state before assembly facilitates transportation and storage. Further, the structure may be a foldable structure so that the assembling and disassembling operations during transportation, storage, and use are easy.

2 object 5 sieving machine 10 container 11 supply port 12 sieving member 19 discharge port 20 door 24 inclined plate 26 caster (wheel)
31 Ground 32 Groove 34 Generated Soil (Target)
34a small particle size soil 34b large particle size soil 35 pipe 37 small particle size soil layer

Claims (4)

A sieving device for sieving an object containing at least one of earth and sand and gravel,
A supply port and a sieving member for opening and closing the supply port are provided on the upper part of the container,
A discharge port for discharging the target object supplied into the container from the supply port and a door for opening and closing the discharge port are provided in the container,
The sieving member is configured to close the supply port in a horizontal position and to open the supply port by rotating upward from the horizontal position. The sieving machine according to claim 1, wherein a plurality of wheels for movement are provided on a lower portion of the container. Inside the container, an inclined plate inclined downward toward the outlet is provided,
The sieving machine according to claim 1 or 2, wherein the object supplied from the supply port into the container is stored on the inclined plate. A burying method for burying a pipe in the ground using the sieve according to any one of claims 1 to 3,
An excavation step of excavating the ground to form a groove,
A sieving step of sieving the generated soil generated by excavation into small particle size soil having a predetermined size or less and large particle size soil having a larger size than a predetermined size,
A piping process in which the pipe is placed in the groove,
A first backfilling step in which small-diameter soil is put into the groove and the surroundings of the pipe are backfilled with small-diameter soil,
A second backfilling step in which a large-grain-size soil is filled and backfilled on the small-grain-size soil layer formed in the groove in the first backfilling step;
In the sieving process, in a state where the supply port of the sieving device is closed by the sieving member, the generated soil is supplied onto the sieving member to perform sieving,
In the first backfilling process, the door of the sieving machine is opened, the small particle size soil stored in the container is discharged from the discharge port, and is put into the groove.
In the second backfilling step, the sieving member of the sieving device is rotated and tilted, and the large-diameter soil on the sieving member is put on the small-diameter soil layer in the groove. How to bury a pipe.

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