JP3566256B2 - Pipe cleaning equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pipe cleaning device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a pipe cleaning apparatus used for cleaning the inside of a pipe such as a water pipe or a refrigerator pipe connects a base end of a flexible shaft having flexibility to a drive shaft of a motor. The structure was such that a cleaning brush was simply connected to the tip of the shaft. Here, the flexible shaft has a general double-tube structure having a length of about 10 to 20 meters, and a transmission shaft for transmitting the power of the motor to the cleaning brush, and an outer tube that is externally mounted on the transmission shaft. , And the transmission shaft rotates inside the outer tube.
[0003]
Then, while the cleaning brush is rotated by driving the motor, the operator inserts the cleaning brush and the flexible shaft from the opening of the pipe while holding the outer tube of the flexible shaft, so that the inside of the pipe is removed. A cleaning operation was performed in which dirt attached to the peripheral portion was removed with a rotating cleaning brush, and after the cleaning operation was completed, the cleaning brush and the flexible shaft were pulled out of the pipe.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned conventional pipe cleaning apparatus, a long flexible shaft is placed on the floor in a state of being bundled in an annular shape before starting the cleaning work, and an operator places the tip of the flexible shaft inside the pipe. Cleaning work is performed by inserting the flexible shafts in order from the top part to another worker. After completion, the operator pulled out the pipe from the base end portion of the flexible shaft in order, and another worker (assistant) placed the pulled-out flexible shaft on the floor while bundling it in an annular shape.
[0005]
That is, when performing a cleaning operation using the above-described conventional pipe cleaning apparatus, a long flexible shaft is placed on the floor in a state of being bundled in an annular shape before and after the cleaning operation.
[0006]
Therefore, before and after the washing operation, the flexible shaft is dragged on the floor, and the flexible shaft may be damaged.
[0007]
Also, when inserting the flexible shaft into the pipe or pulling out the flexible shaft from the pipe, it is not possible for one worker to work smoothly, and another worker must assist him. In addition, there is a possibility that the labor cost required for cleaning the pipe increases and the cost for cleaning the pipe increases.
[0008]
Therefore, in the present invention, the pipe cleaning that can prevent the flexible shaft from being damaged by minimizing the contact between the flexible shaft and the floor as much as possible and that allows only one worker to perform the cleaning operation smoothly. An apparatus is provided.
[0009]
[Means for Solving the Problems]
That is, in the present invention, in a pipe cleaning apparatus in which a cleaning brush is connected to a motor via a flexible shaft, a drum for winding the flexible shaft is rotatably disposed on a base, and the drum is flexible. A flexible shaft winding mechanism for winding the flexible shaft around the drum by rotating in the shaft winding direction is provided.
[0010]
In addition, the flexible shaft winding mechanism includes a roll-shaped leaf spring disposed on an inner peripheral portion of the drum, and a distal end of the leaf spring connected to a drum rotation shaft fixed to a base to connect the drum to the flexible shaft. , The tip of the leaf spring is wound around the drum rotation shaft, and the restoring force of the leaf spring wound around the drum rotation shaft rotates the drum in the winding direction of the flexible shaft. I decided to configure it.
[0011]
Further, the flexible shaft winding mechanism has a pair of leaf springs disposed at symmetric positions about the drum rotation axis.
[0012]
Also, a relay shaft is interposed between the motor and the flexible shaft, and the base of the relay shaft is rotatably inserted into the hollow portion of the hollow drum rotating shaft. While the end is connected to the drive shaft of the motor, the distal end of the relay shaft and the base end of the flexible shaft are connected at the outer periphery of the drum.
Further, in the present invention, a feeding / winding portion of a flexible shaft is formed at a front, upper, rear, rear lower position of the drum, and each feeding / winding portion is a pair of left and right rotatably supporting the drum. When the flexible shaft is extended or wound, a flexible guide slides on the upper portion of the guide roller when a cylindrical guide roller extended in the width direction is rotatably mounted between the drum supports. I did it.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
In the pipe cleaning apparatus according to the present invention, a cleaning brush is linked to a motor via a flexible shaft.
[0014]
In addition, the pipe cleaning device is provided with a drum for winding the flexible shaft on the base so as to be rotatable, and by rotating the drum in the winding direction of the flexible shaft on the same drum, the pipe cleaning device is flexible. A flexible shaft winding mechanism for winding the shaft is provided.
[0015]
When cleaning the pipe, the operator pulls out the flexible shaft wound around the drum against the winding force of the flexible shaft winding mechanism, and attaches the cleaning brush and the flexible shaft to the inside of the pipe. The flexible shaft is inserted into the pipe in order starting from the tip of the flexible shaft. The flexible shaft that has been pulled out is wound around the drum in order from the base end portion of the flexible shaft, and the flexible shaft is automatically housed in the drum in a wound state.
[0016]
Therefore, the flexible shaft is not dragged on the floor before and after the pipe cleaning operation, and damage to the flexible shaft can be prevented.
[0017]
Moreover, even a single worker can smoothly insert the flexible shaft into the pipe, and can smoothly pull out the flexible shaft from the inside of the pipe, thereby reducing the labor required for pipe cleaning. At the same time, the time required for the pipe cleaning operation can be reduced, and the labor cost required for the pipe cleaning operation can be reduced, and the cost required for the pipe cleaning can be reduced. .
[0018]
In particular, by disposing a roll-shaped leaf spring on the inner peripheral portion of the drum, connecting the tip of the leaf spring to a drum rotation shaft fixed to the base, and rotating the drum in the feeding direction of the flexible shaft. The flexible shaft winding mechanism is configured so that the tip of the leaf spring is wound around the drum rotation shaft, and the drum is rotated in the winding direction of the flexible shaft by the restoring force of the leaf spring wound around the drum rotation shaft. In this case, the drum can be rotated in the winding direction by the restoring force of the roll-shaped leaf spring, the flexible shaft winding mechanism can be simplified, and the assembly and maintenance of the pipe cleaning device can be improved. It can improve the performance.
[0019]
If a pair of roll-shaped leaf springs are disposed symmetrically about the drum rotation axis, the restoring force of the leaf spring acts on the drum in a balanced manner, and the drum is wound in the winding direction. Can be smoothly rotated.
[0020]
Also, a relay shaft is interposed between the motor and the flexible shaft, and the base end of the relay shaft is rotatably inserted into the hollow portion of the hollow drum rotating shaft. When the front end of the relay shaft and the base end of the flexible shaft are connected to the outer periphery of the drum while the drum drive shaft is connected to the hollow portion of the drum rotation shaft, The relay shaft idles, so that the relay shaft is not twisted, thereby preventing damage to the relay shaft. In addition, since the relay shaft and the flexible shaft are connected at the outer peripheral portion of the drum, the shaft When a flexible shaft having a different diameter is replaced, the replacement can be easily performed on the outer peripheral portion of the drum, thereby improving workability.
[0021]
【Example】
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
[0022]
In the pipe cleaning apparatus 1 according to the present invention, the base end of the flexible shaft 4 is connected to the drive shaft 3 of the motor 2 via the relay shaft 5, and the cleaning brush 6 is connected to the distal end of the flexible shaft 4. .
[0023]
When the operator drives the motor 2 to rotate the cleaning brush 6, the cleaning brush 6 and the flexible shaft 4 are inserted into the inside of the pipe in order from the front end of the flexible shaft 4, whereby the pipe is inserted. The dirt adhering to the inner peripheral wall surface is scraped off by the cleaning brush 6 to clean the inside of the pipe.
[0024]
As shown in FIGS. 1 to 3, the pipe cleaning apparatus 1 has a substantially cylindrical shape for mounting the motor 2 on the upper right side of the base 7 and winding the flexible shaft 4 on the upper left side of the base 7. The drum 8 is rotatably arranged, and a flexible shaft winding mechanism 9 for rotating the drum 8 in the winding direction of the flexible shaft 4 is arranged inside the drum 8.
[0025]
Hereinafter, a specific structure of each part of the pipe cleaning device 1 will be described in detail.
[0026]
As shown in FIGS. 1 to 3, the base 7 has a pair of left and right plate-shaped connecting bodies 12 and 13 interposed between right and left portions of a pair of front and rear plate-shaped legs 10 and 11. The motor support 14 is mounted on the upper portions of the motors 12 and 13, and the motor 2 is mounted on the motor support 14. In the drawing, reference numeral 15 denotes a motor mounting bracket.
[0027]
The base 7 has a pair of left and right plate frame-like drum supports 16 and 17 mounted between the upper left portions of the legs 10 and 11, and a cylindrical drum support between the center portions of the drum supports 16 and 17. The moving shaft 18 is mounted, and the drum 8 is rotatably mounted on the drum rotating shaft 18. In the figure, reference numeral 19 denotes a connecting rod provided between the left and right drum supports 16 and 17.
[0028]
Further, the base 7 has casters 20 attached to the lower left and right ends of the legs 10 and 11, so that the base 7 can be easily moved.
[0029]
As shown in FIGS. 1 to 4, the drum 8 has a hollow cylindrical peripheral wall 22 attached between a pair of left and right disk-shaped left and right side walls 21 and 21. A plurality of through-hole windows 23 are formed so that a hand can be inserted through the windows 23 during maintenance of the inside of the drum 8.
[0030]
Here, the support structure of the drum 8 will be described. As shown in FIGS. 2 and 5, the center portions of plate-like drum support portions 24 and 25 formed on the drum support members 16 and 17 and extending in the front-rear direction. And a hollow cylindrical drum rotation shaft 18 is inserted into the coaxial insertion hole 26, and the drum rotation shaft 18 and the drum support portions 24, 25 at the end of the drum rotation shaft 18. Further, an inner ring 27 is fixed to an end of the drum rotating shaft 18, and an outer ring 28 is rotatably mounted on an outer peripheral portion of the inner ring 27 via a bearing 29. The outer ring 28 is fixed to the center of the left and right side walls 21 and 21 of the drum 8. In the figure, 30 and 31 are fixing bolts, and 32 is a fixing bolt and nut.
[0031]
As shown in FIG. 4, the flexible shaft winding mechanism 9 includes a pair of plate springs 33 wound in a pair of rolls at the inner peripheral portion of the drum 8 and at positions symmetrical about the drum rotation shaft 18. And the tip of the leaf spring 33 is connected to the drum rotation shaft 18 fixed to the base 7. That is, the leaf spring support shafts 34, 34 are attached to the right side wall 21 of the drum 8 in a state of extending left and right, and the base end of the roll-shaped leaf spring 33 is fixed to the outer periphery of the leaf spring support shafts 34, 34. On the other hand, a substantially cylindrical leaf spring winding body 35 is attached to the drum rotation shaft 18, and the tip of the leaf spring 33 is fixed to a flat outer peripheral portion of the leaf spring winding body 35.
[0032]
When the flexible shaft winding mechanism 9 rotates the drum 8 in the direction in which the flexible shaft 4 is fed out (in FIG. 4, the drum 8 is rotated clockwise), the distal end portion of the leaf spring 33 becomes the leaf spring support shaft 34. Is wound around the outer circumference of the drum rotation shaft 18 and the restoring force of the leaf spring 33 wound around the drum rotation shaft 18 causes the drum 8 to be wound in the winding direction of the flexible shaft 4 (in FIG. 8 is applied to the drum 8.
[0033]
When cleaning the pipe, the operator pulls out the flexible shaft 4 wound around the drum 8 against the winding force of the flexible shaft winding mechanism 9, and the cleaning brush 6 and the flexible shaft 4. Are inserted into the inside of the pipe in order from the tip of the flexible shaft 4. On the other hand, after the washing operation is completed, the operator loosens the gripping force on the flexible shaft 4 to wind up the flexible shaft winding mechanism 9. The flexible shaft 4 is pulled out from the inside of the pipe by the force, and the pulled out flexible shaft 4 is wound around the drum 8 in order from the base end portion of the flexible shaft 4, and the flexible shaft 4 is automatically wound around the drum 8. Housed in state.
[0034]
As described above, in the pipe cleaning apparatus 1, since the flexible shaft winding mechanism 9 is provided on the drum 8 around which the flexible shaft 4 is wound, the flexible shaft 4 pulls on the floor before and after the pipe cleaning operation as before. And the flexible shaft 4 can be prevented from being damaged.
[0035]
In addition, only one worker can smoothly insert the flexible shaft 4 into the pipe, and can smoothly pull out the flexible shaft 4 from the inside of the pipe. The time required for the pipe cleaning operation can be reduced, and the labor cost required for the pipe cleaning operation can be reduced, and the cost required for the pipe cleaning can be reduced.
[0036]
In particular, as the flexible shaft winding mechanism 9, a roll-shaped leaf spring 33 is disposed on the inner peripheral portion of the drum 8, and the tip of the leaf spring 33 is connected to the drum rotating shaft 18 fixed to the base, and is flexible. By rotating the drum 8 in the extending direction of the shaft 4, the distal end portion of the leaf spring 33 winds around the drum rotating shaft 18, and the restoring force of the leaf spring 33 wound around the drum rotating shaft 18 causes the flexible shaft 4 to rotate. , The drum 8 can be rotated in the winding direction by the restoring force of the roll-shaped leaf spring 33, and the flexible shaft winding mechanism 9 can be rotated. Can be simplified, and the assemblability and maintainability of the pipe cleaning device 1 can be improved.
[0037]
In addition, since the pair of roll-shaped leaf springs 33 and 33 are disposed symmetrically with respect to the drum rotation shaft 18, the restoring force of the pair of leaf springs 33 acts on the drum 8 in a well-balanced manner. Thus, the drum 8 can be smoothly rotated in the winding direction, and the workability can be improved.
[0038]
Next, a connection structure between the motor 2 and the flexible shaft 4 and the relay shaft 5 will be described. Here, as shown in FIGS. 5 and 6, the flexible shaft 4 and the relay shaft 5 have a generally double-pipe structure having a length of about 10 to 20 meters, and clean the power of the motor 2. The transmission shafts 36, 37 having flexibility for transmitting to the brush 6 and the flexible outer tubes 38, 39 provided on the transmission shafts 36, 37 are provided. The transmission shafts 36 and 37 rotate.
[0039]
First, a connection structure between the motor 2 and the relay shaft 5 will be described. As shown in FIG. 5, the base end of the relay shaft 5 is rotatably inserted into the hollow portion of the hollow drum rotating shaft 18. In this state, the base end of the transmission shaft 37 of the relay shaft 5 and the drive shaft 3 of the motor 2 are connected. In the figure, 40 is a bearing, and 41 is a bearing cover attached to the base end of the outer tube 39 of the relay shaft 5.
[0040]
As described above, since the relay shaft 5 and the motor 2 are interlockingly connected to each other while the relay shaft 5 is rotatably inserted into the hollow portion of the drum rotation shaft 18, even if the drum 8 is rotated, Since the relay shaft 5 idles in the hollow portion of the dynamic shaft 18, the relay shaft 5 is not twisted, and damage to the relay shaft 5 can be prevented.
[0041]
Next, a connection structure between the motor 2 and the flexible shaft 4 will be described. As shown in FIGS. 3 and 6, a support bracket 42 is attached to an outer peripheral portion of the drum 8, and a hollow cylindrical support pipe is attached to the support bracket 42. 43, a hollow cylindrical shaft holding pipe 44 is fixed to the supporting pipe 43, and the tip end of the relay shaft 5 is rotatably inserted into the shaft holding pipe 44, and the transmission shaft of the relay shaft 5 is A hollow cylindrical joint 45 is attached to the distal end of the joint 37, while a hollow cylindrical joint holding pipe 46 is fixed to the base end of the flexible shaft 4, and the joint 45 is attached to the hollow part of the joint holding pipe 46. The base end of the transmission shaft 36 of the flexible shaft 4 is attached to the joint 45 so as to be rotatable via a bearing 47. In the figure, 48 is a protection pipe, 49 is a protection cover, and 50 and 51 are bearings.
[0042]
Here, the inner diameter of the joint 45 is made different between the proximal hollow portion 52 for fixing the transmission shaft 37 of the relay shaft 5 and the distal hollow portion 53 for fixing the transmission shaft 36 of the flexible shaft 4. However, in this case, the inner diameter of the distal end hollow portion 53 is adjusted to the outer diameter of the transmission shaft 36 of the flexible shaft 4. Then, a joint 45 having an inner diameter of the distal end hollow portion 53 that matches the transmission shaft 36 of the various flexible shafts 4 having different outer diameters is prepared, and the various flexible shafts 4 are attached to the relay shaft 5 using the joint 45. Can be connected.
[0043]
As described above, in the present embodiment, since the relay shaft 5 and the flexible shaft 4 are connected at the outer peripheral portion of the drum 8, when the flexible shafts 4 having different shaft diameters are replaced, the outer peripheral portion of the drum 8 is easily replaced. Work can be performed, and workability can be improved.
[0044]
Next, the structure of the unwinding / winding portion of the flexible shaft 4 will be described. As shown in FIGS. 1 to 4, the unwinding / winding portion of the flexible shaft 4 is provided at the front, upper, rear, and rear lower positions of the drum 8. 54 are formed.
[0045]
The feeding / winding portion 54 of the flexible shaft 4 has a cylindrical shape extending in the left-right width direction between the front upper portion, the upper center portion, the rear upper portion, and the rear lower portion of the drum supports 16 and 17. A guide roller 55 is rotatably mounted, and a feeding / winding portion 54 formed at the front, upper, and rear sides of the drum 8 is a cylinder extending between the drum supports 16 and 17 in the left-right width direction. The guide rod 56 is fixed in a state parallel to the guide roller 55.
[0046]
When the flexible shaft 4 is extended or wound, the flexible shaft 4 slides over the guide roller 55, so that the flexible shaft 4 can be smoothly extended or wound. I have to.
[0047]
As shown in FIG. 7, the feeding / rewinding portion 54 of the flexible shaft 4 includes a guide mechanism 57 for feeding or winding the flexible shaft 4 from substantially the center of the drum width of the drum 8. Can also be provided.
[0048]
That is, a pair of left and right disc-shaped flange members 58, 58 are slidably attached to the substantially central portion of the guide rod 56 along the guide rod 56, and a substantially U-shaped guide is provided between the flange members 58, 58. 59, and a spring 60 for urging the flange body 58 and the guide 59 toward substantially the center of the drum width is provided between each flange body 58 and the drum supports 16 and 17. The guide 59 holds the flexible shaft 4.
[0049]
As described above, since the flexible shaft 4 is extended or wound from substantially the center of the drum width of the drum 8 by the guide mechanism 57, the flexible shaft 4 comes into contact with the peripheral corners of the left and right side walls 21 and 21 of the drum 8. And the flexible shaft 4 can be smoothly fed out or wound up.
[0050]
【The invention's effect】
The present invention is implemented in the form described above, and has the effects described below.
[0051]
That is, in the present invention, the pipe cleaning device is provided with a flexible shaft winding mechanism for rotating the drum around which the flexible shaft is wound in the winding direction of the flexible shaft. The flexible shaft can be prevented from being dragged on the floor, and the flexible shaft can be prevented from being damaged.Moreover, only one worker can smoothly insert the flexible shaft into the pipe, and The shaft can be pulled out smoothly, reducing the labor required for pipe cleaning work, shortening the time required for pipe cleaning work, and reducing the labor cost required for pipe cleaning work. To reduce the cost of cleaning pipes It is possible to achieve.
In addition, in the present invention, the relay shaft is interposed between the motor and the flexible shaft, and the relay is performed in a state where the base end of the relay shaft is rotatably inserted into the hollow portion of the hollow drum rotating shaft. While the base end of the shaft is connected to the motor drive shaft, the outer end of the drum connects the front end of the relay shaft to the base end of the flexible shaft. Since the relay shaft idles in the hollow portion of the driving shaft, the relay shaft is not twisted, thereby preventing damage to the relay shaft, and connecting the relay shaft and the flexible shaft at the outer periphery of the drum. Therefore, when replacing flexible shafts having different shaft diameters, replacement work can be easily performed on the outer peripheral portion of the drum, and workability can be improved. Kill.
[Brief description of the drawings]
FIG. 1 is a front view showing a pipe cleaning apparatus according to the present invention.
FIG. 2 is a left side view of the same.
FIG. 3 is a plan view of the same.
FIG. 4 is a sectional view showing a drum.
FIG. 5 is an enlarged sectional view showing a rotation support structure of the drum.
FIG. 6 is an enlarged sectional view showing a connection structure between a flexible shaft and a relay shaft.
FIG. 7 is a front view showing a guide mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pipe washing apparatus 2 Motor 4 Flexible shaft 5 Relay shaft 6 Cleaning brush 7 Base 8 Drum 9 Flexible shaft winding mechanism 16, 17 Drum support 18 Drum rotation shaft 33 Leaf spring 54 Feeding / winding unit 57 Guide mechanism

Claims (4)

In a pipe cleaning device in which a cleaning brush is linked to a motor via a flexible shaft,
A drum for winding a flexible shaft around a base is rotatably disposed, and the flexible shaft is wound around the drum by rotating the drum in the winding direction of the flexible shaft. Equipped with a mechanism ,
A relay shaft is interposed between the motor and the flexible shaft, and the base end of the relay shaft is rotatably inserted into the hollow portion of the hollow drum rotating shaft. And a drive shaft of the motor, while connecting the distal end of the relay shaft and the base end of the flexible shaft at the outer periphery of the drum . The flexible shaft winding mechanism includes a roll-shaped leaf spring disposed on an inner peripheral portion of the drum, and a distal end of the leaf spring connected to a drum rotating shaft fixed to a base to feed the drum to the flexible shaft. The tip of the leaf spring is wound around the drum rotating shaft by rotating in the direction, and the drum is rotated in the winding direction of the flexible shaft by the restoring force of the leaf spring wound around the drum rotating shaft. The pipe cleaning device according to claim 1, wherein 3. The pipe cleaning apparatus according to claim 2, wherein the flexible shaft winding mechanism includes a pair of leaf springs arranged at symmetric positions about a drum rotation axis. At the front, upper, rear, and lower rear positions of the drum, a feeding / winding portion of a flexible shaft is formed, and each feeding / winding portion is provided between a pair of left and right drum supports that rotatably support the drum. A cylindrical guide roller extended in the left-right width direction is rotatably mounted so that the flexible shaft slides over the guide roller when the flexible shaft is extended or wound. The pipe cleaning device according to any one of claims 1 to 3, characterized in that:

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