JPH0415899B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a conveying device equipped with a feeding tube. More specifically, when inspecting the inside of a small-diameter hole that workers cannot enter, or the inside of a sewer pipe or gutter pipe, it is necessary to transport the necessary equipment, etc. into the hole or inside the sewer pipe or gutter pipe. The present invention relates to a conveying device equipped with a feeding tube.

[Prior art and its issues]

Conventionally, for example, in order to check for damage or corrosion in a sewer pipe buried underground, a worker has to enter the pipe through a manhole. However, sludge generally accumulates inside the sewer pipes, making it difficult to work inside the pipes. In addition, for small-diameter sewage pipes that workers cannot enter, a remote-controlled television camera is attached to a sled, and a control rope is attached to the sled, so that the rope can be operated from both sides of the pipe entrance and exit. Inspection was carried out by inserting the tube in the same manner as described above and moving the calf back and forth by operating an operating rope using a winding mechanism, etc., but this method had the following problems. (a) The preparation work for inserting the operating rope into the pipe before inspection was complicated and the work was inefficient. (b) Due to the structure of the barge, it was easy to get caught in stones or sludge on the way, and it was sometimes impossible to stop and inspect it. (c) Operate inspection equipment such as pipes from both sides of the pipe entrance and exit so that they can be easily retrieved if the pipe stops midway. For this reason, at least two workers are required to carry out the work, but since the entrances and exits of the pipes are generally far apart, it is difficult to coordinate the timing of each other's operations, making it impossible to perform the work smoothly.

[Purpose of the invention]

One object of the present invention is to provide a conveying device that can immediately convey necessary equipment to a necessary location, even in a small-diameter hole that cannot be entered by humans or a narrow pipe such as a sewer pipe. It is in. Another object of the present invention is to provide a conveying device in which the delivery and collection of necessary equipment, etc. can be operated from one side.

[Structure of the invention]

The structure of the present invention taken to achieve the above object is as follows. That is, the present invention provides a flexible tube having a required length and having an airtight tip;
an air supply pipe that is attached to the tip of the delivery tube and sends the compressed air fed from the compressor into the delivery tube; the delivery tube is sandwiched and pressure-sealed so that the compressed air sent from the air delivery pipe is a pressure-sealing roller that prevents the feed-out tube from escaping toward the proximal end side and sequentially feeds out the feed-out tube as the feed-out tube expands when supplied with compressed air; provided close to the pressure-seal roller; This is a conveying device equipped with a feeding tube, comprising: a winding device for winding up a deaerated feeding tube;

【Example】

The present invention will be explained in more detail based on embodiments shown in the drawings. FIG. 1 is a schematic explanatory diagram of an embodiment;
FIG. 2 is a schematic explanatory diagram of the drive section, and FIG. 3 is a schematic plan view of the drive section. The conveying device equipped with the feeding tube 1 is equipped with a cart 23 having casters at the bottom. A winding drum 4, which is a winding device, is attached to the upper part of the frame provided on the truck 23, and the winding drum 4 is equipped with a winding drum gear 9.
Further, a winding drum 24 is provided coaxially with the winding drum 4. A flexible feeding tube 1 of a required length is wound around the winding drum 4 in a flat state. The distal end side of the feeding tube 1 is guided by a guide roller 12, which will be described later, and passes between the idle roller 6 and the movable roller 8 of the pressure sealing roller A.
Furthermore, it is fed out forward through a guide hose 13. A pressure sealing roller A is provided in front of the winding drum 4. The pressure sealing roller A includes a floating roller 6 having a spring 5 on its upper part, and a movable roller 8 having a rubber 7 attached to its circumferential surface. Thereby, the idle roller 6 and the movable roller 8 sandwich the feeding tube 1 with a required pressure. The movable roller 8 is equipped with a movable roller gear 10, which includes the winding drum gear 9 and the movable roller gear 1.
0 is linked by the chain 11. In addition, a movable roller gear 25 provided coaxially with the movable roller gear 10 and a handle gear 26 of an adjacent handle shaft are interlocked by a chain 27, and when the handle 22 is operated, the sealing roller A The winding drum 4 and the winding drum 24 can be driven. Note that a guide roller 12 is provided between the winding drum 4 and the sealing roller A. As described above, the tip end of the feeding tube 1 is fed forward from the guide roller 12, passing between the idle roller 6 and the movable roller 8 of the sealing roller A, and further passing through the guide hose 13. Auxiliary tubes 14 are attached to both sides of the distal end of the feeding tube 1. A television camera 2, which is a photographing device, is attached to the upper part of the auxiliary tube 14, and is equipped with an illumination light (not shown). The television camera 2 can be remotely controlled via a cable 21, and is connected to an external monitor (not shown).
This allows you to inspect the inside of the pipe while viewing the video. Furthermore, an air hose 3, which is a supply pipe for supplying compressed air, is attached to the tip of the delivery tube 1. The base side of the air hose 3 is wound around the winding drum 24, and the end thereof is connected to an air connector (not shown) of the winding drum 24. A compressor 1 is installed near the winding drum 24.
7 is provided. The compressor 17 is driven by the motor generator 16 and generates compressed air. The generated compressed air is sent to the cockpit 18 and the pressure regulating valve 1.
9. The air is supplied to the air hose 3 via the pressure gauge 20. (Function) An example of the function of this embodiment will be explained with reference to FIGS. 1 to 3. For example, if the auxiliary tube 4 and television camera 2 at the tip of the feeding tube 1 are placed at the pipe opening to be inspected and compressed air is supplied to the air hose 3, then The portion expands, and due to the expansion pressure, the payout tube 1 is deformed into a rod shape and is further pulled out from the winding drum 4 and fed out forward. Thereby, the auxiliary tube 14 and the television camera 2 can move through the tube even if there are some obstacles such as stones or accumulated soil. Note that the auxiliary tube 14 serves as a traveling body that stabilizes the advancement of the feeding tube 1. The advancing speed is adjusted by appropriately adjusting the air pressure using a regulating valve 19 and a pressure gauge 20. Then, the illumination light and television camera 2 are activated by remote control, and images inside the pipe are transferred to an external monitor for inspection. If you want to store the feeding tube 1 after completing the inspection, remove the joint of the air hose 3 and turn the handle 22 to release the air inside the feeding tube 1 while winding it onto the winding drum 4. Try to take it. FIG. 4 is a perspective view showing another embodiment. The conveying device equipped with the feeding tube 1 is the base frame F.
1, F2. The base frames F1 and F2 are separate pieces and can be installed individually. In the figure, a winding drum 4a is attached to the base frame F2 on the rear side. A winding tube 1 is wound in a flat state on the winding drum 4a. Also,
Reference numeral 18 is a cock, 19 is a pressure regulating valve, and 20 is a pressure gauge. A pressure sealing roller A' is provided on the base frame F1 on the front side. Pressure sealing roller A′ is idle roller 6
and a movable roller 7, and the idler roller 6 and the movable roller 7 have a structure in which the distance between the roller surfaces of both rollers can be adjusted using an adjustment bolt 62. A guide roller 12 is provided behind the pressure sealing roller A', and a guide cage 13 is provided in front of the pressure sealing roller A'.
A is provided. The leading end of the above-mentioned feeding tube 1 is guided from the winding drum 4a by contacting the guide roller 12, passes between the idle roller 6 of the sealing roller A' and the movable roller 7, and penetrates the guide cage 13. and is being pushed forward. Note that the floating roller 6 and the movable roller 7 sandwich the feeding tube 1 with the required pressure, so that the air fed to the tip side of the feeding tube 1 does not escape backward from the pressure sealing roller A'. ing. A hull S is attached to the tip of the feeding tube 1. A plastic cover C is provided on the hull S, and a camera 2a equipped with a flash is mounted inside the cover C. Also,
An air hose 3 is connected to the tip of the feeding tube 1. The base side of the air hose 3 is wound around a winding drum 24a, and the base end is connected to one end of an air connector 240 of the winding drum 24a. At the other end of the external side of the air connector 240,
Air hose 3a is connected, and air hose 3
The other end of a is connected to the pressure regulating valve 19. Note that the pressure regulating valve 19 is connected to a compressor (not shown) via an air hose 3b. Note that the operation and effect are almost the same as in the above embodiment, except that the winding drum 4a, pressure sealing roller A', and winding drum 24a provided on separate base frames F1 and F2 are installed at appropriate positions. This makes it easy to operate, and since the hull S slides inside the pipe, the feeding tube 1
It has the advantage of being able to feed out more smoothly. Note that the present invention is not limited to the illustrated embodiment, and can be modified in many ways within the scope of the claims. It can also be applied to disaster relief, such as by sending air hoses and rescue ropes to the area.

【Effect of the invention】

The present invention has the above configuration and has the following effects. (a) If the tip of the feeding tube is placed in a small-diameter hole where a worker cannot enter or at the entrance of a sewer pipe or gutter pipe and air is fed into the feeding tube, the feeding tube will expand and be fed out. The tip advances. Therefore, by arranging necessary equipment and the like at the tip of the feeding tube, these equipment and the like can be transported into the hole or inside the sewer pipe or gutter pipe. Therefore, necessary work can be carried out quickly even in small-diameter holes, sewer pipes, etc. that workers cannot enter. (b) The feeding tube is fed out while being expanded by compressed air, and the tip advances. For this reason, the equipment such as the television camera installed at the tip can move forward even if there are some obstacles such as stones, sludge, or accumulated soil inside the pipe, as long as the conveyance device is not damaged, and it will stop midway. There's nothing to do. (c) In the case of a pipe opening, the feeding tube can be fed out from one side of the pipe opening, and the winding and collection can also be done from the same pipe opening side, unlike the conventional method in which the tube was operated from both sides of the pipe opening. Fewer workers are required and work can be done more efficiently.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of one embodiment, FIG. 2 is a schematic explanatory diagram of the driving section, and FIG. 3 is a schematic plan view of the driving section.
FIG. 4 is a perspective view showing another embodiment. 4: Winding drum, 1: Feeding tube,
A: pressure sealing roller, 7: movable roller, 6: floating roller, 2: television camera, 3: air hose.

Claims (1)

[Claims] 1. A flexible feeding tube 1 having a required length and having an airtight tip; Compressed air attached to the tip of the feeding tube 1 and fed under pressure from a compressor. an air supply pipe 3 for feeding into the delivery tube 1; sandwiching and pressurizing the delivery tube 1 to prevent the compressed air sent from the air delivery pipe 3 from escaping to the proximal end side of the delivery tube 1; Moreover, the feeding tube 1 is supplied with compressed air.
pressure sealing rollers A, A' that sequentially feed out the feeding tube 1 as the tube expands; are provided close to the pressure sealing rollers A, A';
A conveying device equipped with a feeding tube, comprising: winding devices 4, 4a for winding up a deaerated feeding tube 1;