JPH01155982A - Apparatus for removing clogging substance in pipe - Google Patents

Abstract

PURPOSE: To easily and automatically remove a clogging material by providing the front end of a traveling device movable back and forth within a pipe with a screw which plunges and engages into and with the clogging material and further mounting the turning preventive device of the traveling device at a suitable position. CONSTITUTION: At the time of removing the in-pipe clogging material with a pneumatic refuse transporting pipe, etc., the device is inserted into the pipe from its aperture and is propelled by the traveling device 1. When the device arrives at the stagnating position of the clogging material, the device is further advanced while the screw 3 is rotated to plunge and engage the screw 3 into and with the clogging material. The turning preventive device 2 is mounted between the device and a motor 4 on the front side of the traveling device 1 to prevent the rotation of the traveling device 1 in the direction reverse from the rotating direction of the screw 3 by pressing wheels 22 to the inside surface of the pipe 5 and, therefore, the clogging material is captured by the strong rotating power of the screw 3. The device is retreated up to the aperture 3 together with the clogging material after capturing, by which the clogging material is removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a blockage removal device for removing blockages inside a pipe such as a pipe for pneumatic transport of waste.

[Conventional technology]

When transporting waste using pipes, the volume of waste is larger than the diameter of the pipe, or the amount of waste input per unit time is larger than the diameter of the pipe, etc. In some cases, the pipelines become clogged with waste, making further transport impossible. In such cases, in order to resume transportation, the waste causing the blockage must be removed;
Previously, if the diameter of the pipe was large, a worker would go directly into the pipe to remove the object that was causing the blockage. Furthermore, if the diameter of the tube is small, a person cannot enter the tube, so a long flexible object is inserted into the tube to remove the obstruction.

[Problem that the invention seeks to solve]

However, when attempting to remove a blockage that is causing a blockage, even if the pipe has an inner diameter that allows a worker to directly enter the pipe, the removal of the blockage must be done manually, making it inefficient. In addition, the pipes are not always laid horizontally, so it is not necessarily an effective method for humans to enter the pipes.

stomach. In addition, if the diameter of the tube is small, even if you insert a flexible long object into the tube and try to remove the obstruction at the tip, the distance to the obstruction may be long or the obstruction may be removed. Since the object cannot be visually recognized, it is not always possible to remove it reliably.

The present invention has been made in view of these problems, and an object of the present invention is to provide a device that removes an object causing the blockage when a conduit is blocked.

(Means for Solving the Problems) Therefore, in the present invention, an intra-pipe obstruction removal device is attached to a traveling device that reciprocates within the pipe, and the traveling device,
It consists of a screw that rotates so that at least its tip engages with an obstruction in the tube, and a rotation prevention device that is attached to the traveling device and presses the inner surface of the tube outward.

[Effect]

This blockage removal device advances a traveling device that reciprocates inside the pipe to reach a blocked place in the pipe, rotates a screw to engage the blockage, and catches the dirt on the screw. By subsequently retracting, the obstruction can be moved together with the travel device to the opening of the tube and removed. In addition, an anti-rotation device that presses the inner surface of the tube outward prevents the traveling device from rotating in the opposite direction to the screw due to the reaction force generated when the screw rotates and enters the obstruction. Can be done.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

Figures 1 to 3 show an embodiment of the present invention, in which the present invention is applied to remove a blockage (garbage) in an example where the pipe 5 for pneumatic transportation of waste is clogged with waste and the pipe 5 is blocked. This is an example.

- Fig. 1 is a side view of the obstruction removal device, and Fig. 2 is a plan view of the obstruction removal device.

This obstruction removal device includes a traveling device 1 and a rotation prevention device 2.
, a screw 3, and a motor 4.
In FIGS. 1 and 2, the obstruction removing device is shown disposed within the tube 5, and it is assumed that the obstruction is on the left side of the drawings.

The traveling device 1 is formed by vertically symmetrically combining two traveling machines 1a and 1b, one each for an upper and a lower one, and these two traveling machines 1a, l
b constitutes the traveling machine 1. Therefore, one traveling machine 1a will be explained, and the explanation of the other traveling machine 1b will be omitted by assigning common numbers to common parts.

The traveling machine 1a is equipped with front and rear wheels 12 that are pivotally supported between left and right frames 11, and the driving force of a motor 13 disposed between both frames 11 is transferred to a reducer 14 and a gear box. Power is transmitted to both axles 12 via a bevel gear in 15, left and right pulleys 16, and left and right bells 17 connected thereto. 17a and 17b are idler pulleys that detour the belt 17 path in order to ensure power transmission between the belt 17, the pulley 16, and the wheels 12.

These traveling machines 1a, lb are vertically symmetrically attached to the chassis 1B in the frame 11, and a spring 19 is interposed between the chassis 18 and the re-traversing machines 1a, lb, and its elasticity causes the re-traversing machines to 1a.

Each wheel 12 is pressed against the inner surface of the tube 5 by biasing the wheels 1b to the left and right, respectively. Furthermore, a motor 4 is attached to the front side of the traveling device 1 via a rotation prevention device 2 . Rotation prevention device 2 is travel bag y11
The left and right frames 21 fixed to the left and right frames 2
Upper and lower wheels 22 rotatably supported between wheels 1 and 2;
It consists of a spring 23 that biases both axles 22a up and down and presses both axles 22 against the inner surface of the tube 5. The wheels 22 are large in both width and diameter so that they can make sufficient contact with the inner surface of the tube 5, so that they do not slip in the inner circumferential direction of the tube 5. The structure includes a reaction force receiver that prevents the traveling device l from rotating in the opposite direction to the screw 3 even when the screw gets stuck in an obstruction.

A motor 4 is mounted on the front side of the left and right frames 21 of the anti-rotation device 2.
is fixed, and the screw 3 is connected to this via a reducer 41 and a joint 42. The screw 3 rotates to enter and lock into a blockage in the tube 5 and capture the blockage. In this embodiment, a ribbon screw is used, but it has sufficient strength to satisfy the above function. As long as it has one dimension, the shape and pitch may be different from those shown in the drawings depending on the type of obstruction and other conditions.

6 is a micro camera for television, and tube 6
The image of the tip of the screw 3 and other predetermined signals shall be sent to a remote location via a signal line passing through the interior of the motor, and the ON-OFF and forward/reverse operations of the motors 4 and 13 shall also be remotely controlled. do.

Therefore, in this embodiment, the captured state of the obstruction by the screw 3 is detected using the image from the micro camera 6, but it is not possible to detect it based on the rotational speed and resistance value of the motors 4 and 13 or the running speed of the traveling device 1. This may be detected.

Next, the operation will be explained based on the schematic diagram in FIG.

First, when the tube 5 is blocked, the device is inserted into the tube 5 through the opening 5a and started, as shown in FIG. 3(a).

As a result, each wheel 12, whose axle 12a is urged outward by the elasticity of the spring 19, is pressed against the inner surface of the tube 5, and the rotation of each wheel 12 is transmitted to the inner surface of the tube 5.
It starts traveling inside the pipe 5.

When the device travels inside the pipe 5 and reaches a position in the pipe 5 where the obstruction 43 is retained, the device moves further forward while rotating the screw 3. As a result, the screw 3 enters and locks into the obstructed object 43 and captures the obstructed object (3rd action). Tip and obstruction 4
A reaction force is generated that attempts to stop the rotation of the screw 3 using the contact point with the screw 3 as a fulcrum, and if this reaction force is strong, the rotation of the screw 3 will stop and the parts of the device other than the screw 3 will be stopped. Although an attempt is made to rotate the screw 3 in the opposite direction to the rotation direction, in this device, the wheels 22 of the anti-rotation device 2 disposed on the front side of the traveling device 1 sufficiently contact the inner surface of the tube 5. Since the tube 5 is prevented from slipping in the inner circumferential direction, a strong rotational force can be applied to the screw 3, and the screw 3 can be reliably inserted into and locked into the obstruction 43.

When this screw 3 enters and locks into the obstruction 43, captures the obstruction 43, and the obstruction removal device retreats, the obstruction removed by the screw 3 is removed, as shown in FIG. 43 moves rearward together with the device and reaches the opening 5a of the tube 5 (FIG. 3(d)).

The obstruction removal device stops when it returns to the opening, and as shown in Figure 3 (
As shown in e), the screw 3 is rotated in the opposite direction to when it is engaged with the obstruction 43, and the obstruction 43 captured within the screw 3 is sent out from the screw 3.

The obstruction 43 sent out from the screw 3 is removed manually.

In this way, when the pipe 5 is blocked, the traveling device 1 travels inside the pipe 5, so if the pipe 5 has a small diameter that cannot be entered by a person, or the pipe is laid horizontally. Even if it is not, you can easily reach the place where it is blocked. In addition, this device
Since the screw 3 is rotated to plunge into and hold the blockage and capture the blockage, the blockage can be removed and the tube 5 can be reopened without manual work.

Note that in this device, the motor 4 and the chassis 18. By setting wide intervals between the chassis 18 and the gear box 15, and between the motor 13 and the chassis 18, this device can be used for pipes of any inner diameter by simply replacing the wheels 12, 22 and screws 3 according to the inner diameter of the pipe. be able to apply it.

Further, the anti-rotation device 2 can be installed on the rear side of the traveling device 1, and the means for transmitting the power of the motor 13 to the wheels 12 can also be configured by combining other known transmission means. Possible, possible.

〔Effect of the invention〕

- As explained above, the blockage removal device of the present invention moves back and forth inside the pipe using the traveling device, so if the pipe is blocked, the pipe is of a small diameter (such that it is impossible to enter manually). Even if the piping is not installed horizontally, it is possible to easily reach the blocked area.In addition, this device rotates the screw to penetrate and lock the screw into the blockage. Since the obstruction is captured, the obstruction can be removed and the tube reopened without human intervention, facilitating maintenance and management of the tube.

[Brief explanation of the drawing]

Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is a plan view of an embodiment of the invention, and Fig. 3 (al to el are schematic diagrams of the operation of the device. Traveling device, 2... anti-rotation device, 3 screw, 4... motor, 5... tube, 6... micro camera.

Claims (1)

[Claims] A traveling device that reciprocates within the pipe, a screw that is attached to the traveling device and rotates so that at least its tip engages an obstruction in the tube, and a screw that is attached to the traveling device and presses the inner surface of the tube outward. A device for removing an obstruction in a pipe, characterized in that it is equipped with a motion prevention device.