JP5478541B2 - Pipe connection tool and pipe connection method - Google Patents

Description

  The present invention relates to a through-pipe tool for removing clogging of a drain pipe and penetrating the drain pipe, and a pipe-pipe method using the same.

  Generally, when a drain pipe is clogged at home or the like, a wire is inserted into the drain pipe, and the clog is removed by protruding with the wire. However, when a wire is used in this way, when the wire is pulled out, sewage may sag and stain the surroundings. In addition, the reach of wire is limited, and it is often short. Further, the wire may not advance beyond the bent portion of the drain.

  Therefore, the inventor has developed a tube-pipe device described in Patent Document 1 below. This pipe device is a pipe body whose tip is inserted into the opening of the drain pipe to be clogged, a liquid guide pipe connected to the pipe body for introducing pressurized liquid into the drain pipe, And a bag body that is provided on the outer periphery of the distal end portion of the tube body and that expands outward in the radial direction of the tube body by introduction of the compressed fluid and adheres closely to the inner peripheral surface of the drain pipe.

JP 2001-146882 A

According to the through-tube device described in Patent Document 1 described above, the opening of the drain pipe is inserted into the opening of the drain pipe, and the compressed fluid is introduced into the bag body and inflated to seal the drain pipe opening. To do. In this state, by introducing a pressurized liquid into the drainage pipe, the drainage pipe is passed through.
However, in the through-tube tool described in Patent Document 1, the action of sealing between the tube body and the inner peripheral surface of the drain pipe is due to a compressed fluid such as air, and the action of removing clogging in the drain pipe is introduced into the drain pipe. Therefore, different fluids and dedicated introduction parts are required. For this reason, there is a problem that the configuration is complicated, the manufacturing cost is high, and the handling at the time of the work is troublesome.

  The present invention has been made in view of the above-described conventional problems, and has a very simple and inexpensive configuration that can remove clogging by simple operation and allow the drainage pipe to pass through. The purpose is to provide a method of pipe connection.

In order to achieve the above-mentioned object, a pipe device according to the present invention is connected to a pipe body inserted into an opening of a drain pipe and an end part of the pipe body for introducing pressurized liquid into the drain pipe. A liquid guide pipe, the pipe body is integrally formed of a rubber material, a nozzle hole is formed through a tip portion of the pipe body, and the liquid guide pipe is formed at the other end side opening of the pipe body. The outer peripheral surface of the pipe body is elastically deformed by the introduction of pressurized liquid into the pipe body and expands outward in the radial direction of the pipe body. The tip of the tube is thicker in the tube center direction than the thickness of the outer peripheral surface of the tube, and the fountain hole formed penetrating the tip The hole diameter is set to be smaller than the hole diameter of the liquid introduction hole of the joint member .

  In the above configuration, the joint member is fixed to the pipe body by a fixing member attached to the outer peripheral surface of the pipe body, and the other end side of the pipe body extends from a fixing position by the fixing member. Is formed, and the extending portion is folded back to cover the fixing member.

  Then, the pipe connection method according to the present invention includes inserting the pipe body in the pipe connection tool according to claim 1 or 2 from the opening of the drain pipe to be clogged, and adding from the liquid introduction pipe. By introducing the pressurized liquid, the outer peripheral surface portion of the tubular body is expanded and brought into close contact with the inner peripheral surface of the drain pipe to seal the gap between the outer peripheral surface portion of the tubular body and the inner peripheral surface of the drain pipe, and the fountain hole of the tubular body The pressurized liquid is ejected into the drain pipe.

  According to the through-tube tool and the through-tube method according to the present invention, when a pipe body is inserted into the opening of the drain pipe from its tip, an opening / closing operation such as a cock can be performed on the ground. Thereby, the inside of a drain pipe can be sealed with the outer peripheral surface part of the tubular body which swells with a pressurized liquid, and a pressurized liquid can also be introduce | transduced in a drain pipe simultaneously. Therefore, the drainage pipe can be easily and quickly passed through at home. Even when the distance from the opening of the drain pipe to the clogging is relatively long or when the drain pipe has a bent portion, the clogging can be removed by the action of the pressurized liquid. In particular, according to the present invention, both the action of inflating the tube body and sealing the inside of the drain pipe and the action of feeding the pressurized liquid into the drain pipe can be exhibited with only one pressurized liquid. For this reason, since only one system is required to handle the fluid, the configuration is simple and inexpensive, and the size and weight are reduced. Furthermore, for example, a ball valve that opens when the liquid pressure in the pipe internal space of the pipe exceeds a predetermined pressure, a pressure adjustment valve with a coil spring, and the like are not arranged in the jet hole of the pipe. Even simpler and cheaper. Therefore, the present invention is suitable as a through-tube tool used for a drain pipe having a relatively small diameter. In addition, it is easy to use because only one valve opening / closing operation is required.

  In addition, in the structure in which the extending part formed on the other end side of the tube body is folded and covers the fixing member, the fixing member is often made of metal, and the fixing member is made of a rubber material. As the pipe is inserted into the drainage pipe, the inner peripheral surface of the drainage pipe is rubbed directly by the fixing member, and dirt attached to the inner peripheral surface of the pipe is removed. It can be prevented from being scraped off or scratched on the drain pipe itself.

It is an external view which shows the through-tube tool which concerns on Embodiment 1 of this invention. It is a sectional side view which shows the tube body unit of the said tube-through tool. The tubular body unit of the said passing tool is shown, (a) is an exploded sectional side view, (b) is an AA arrow directional view in (a). It is principal part sectional drawing which shows the state which inserted the said through-tube tool in the drain pipe. A series of states in which the drainage pipe is clogged with the above-mentioned pipe passing device is shown, (a) is a main part sectional view showing a state in which the outer peripheral surface of the tubular body starts to expand due to the introduction of the pressurized liquid, (b) (A) is a fragmentary cross-sectional view showing a state in which the outer peripheral surface portion of the tubular body is fully expanded, and (c) is a principal sectional view showing a state where the pressurized liquid introduced from the fountain hole of the tubular body is substantially filled in the drain pipe. d) is a sectional view of an essential part showing a state in which the clogging in the drain pipe is removed. The tubular body unit of the through-tube tool which concerns on Embodiment 2 of this invention is shown, (a) is a sectional side view, (b) is a sectional side view which shows the state which covered the member for fixing in the extension part.

Embodiments of the present invention will be described with reference to the drawings. The embodiments described below are merely examples of the present invention, and do not limit the technical scope of the present invention.
“Embodiment 1.”
FIG. 1 is an external view showing a tube device according to Embodiment 1 of the present invention, FIG. 2 is a side sectional view showing a tube unit of the tube device, FIG. 3 shows a tube unit of the tube device, (A) is a decomposition | disassembly side sectional drawing, (b) is the AA arrow directional view in (a).
In each drawing, a pipe connecting tool 1 according to this embodiment includes a pipe unit 2 inserted into a drain pipe, and a liquid guide pipe 3 connected to the end of the pipe unit 2 via a nipple 4. Has been. The tubular body unit 2 includes a tubular body 7 integrally formed into a bottomed cylindrical shape using a rubber material as a raw material, a joint member 16 attached to the tubular body 7, and an outer peripheral surface 11A of the tubular body 7. And a fixing member 40 for fixing the joint member 16.

  The tube body 7 has a tip portion 8 serving as a bottom surface formed to be thick in the cylinder center direction. A fountain hole 9 having a hole diameter d1 is formed through the central portion of the front end portion 8 when viewed from the front, and the other end of the tubular body 7 is the other end opening 10. A circumferential flange 15 for positioning the fixing member 40 is formed so as to protrude outward over the entire outer circumference of the other end of the tubular body 7. Near the other end of the inner peripheral surface 12 of the tubular body 7, an inner peripheral protrusion 14 for locking the joint member 16 is formed so as to protrude inward over the entire inner peripheral surface.

  The dimensions of the tubular body 7 are not particularly limited. For example, the length is 115 mm, the outer diameter of the tip 8 is 30 mm, and the outer diameter of the other end is 35 mm. Further, the hole diameter d 1 of the fountain hole 9 is set to be smaller than the hole diameter d 2 of the liquid introduction hole 17 of the joint member 16. That is, for example, the hole diameter d1 of the fountain hole 9 is set to 5 mm, and the hole diameter d2 of the liquid introduction hole 17 of the joint member 16 is set to 10 mm. By the way, when the pipe passing tool 1 is used for the drain pipe 24 having a pipe inner diameter of 40 mm or 65 mm, the outer diameter of the tube body 7 is set to about 28 to 60 mm, the hole diameter d1 of the spray hole 9 is set to about 3 to 8 mm, The hole diameter d2 of the 16 liquid introduction holes 17 may be about 8 to 15 mm. The thickness of the outer peripheral surface portion 11 of the tubular body 7 is about 1.0 to 2.5 mm.

  In this example, CR45, which is a soft neoprene / chloroprene rubber, is used as the rubber material constituting the tubular body 7. This neoprene / chloroprene rubber (CR) is suitable as a material for the pipe body 7 because it is rich in oil resistance, weather resistance, and heat resistance, is relatively inexpensive and easily available. However, the rubber material used for the tube of the present invention is, for example, natural rubber (NR), nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), ethylene-propylene rubber (EPDM) instead of neoprene / chloroprene rubber. ), Butyl rubber (BR), styrene butadiene rubber (SBR), or the like can also be used.

  The joint member 16 is made of, for example, a synthetic resin such as polyvinyl chloride polyvinyl chloride as a raw material, and a liquid introduction hole 17 having a hole diameter d2 is formed through the central portion when viewed from the front. The other end of the joint member 16 is a female screw portion 18 that is screwed into the male screw portion of the nipple 4 and communicates with the liquid introduction hole 17. An outer peripheral groove portion 19 that is detachably engaged with the inner peripheral protrusion 14 of the tubular body 7 is formed to be recessed inward over the entire outer peripheral surface of the joint member 16. The fixing member 40 is passed through, for example, a stainless steel plate band 20 wound around the outer peripheral surface 11A of the tube body 7 and a screw hole (not shown) formed in the stainless steel plate band 20. A set screw 21 is screwed into the outer peripheral portion of the joint member 16. Then, one male screw portion of the nipple 4 is screwed to the female screw portion 18 of the joint member 16, and one end of the liquid introduction pipe 3 is connected to the other male screw portion of the nipple 4.

Subsequently, a method of passing the drainage pipe 24 by the passing tool 1 having the above-described configuration will be described with reference to FIGS. 4 and 5. In this case, the other end of the liquid introduction pipe 3 of the water passing device 1 is
It is connected to a faucet 28 via a cock 5 with a check valve, a nipple 6 and a liquid introduction pipe 27. The faucet 28 is connected to a pressurized liquid W (in this case, for example, a pressure of 0.1 to 0.2 MPa through a liquid introduction pipe 29. Connected to a source of water). And the drain pipe 24 which is going to remove the clogging 26 has shown the example in which the opening part 25 is exposed to the deep position from the ground 22 within the meeting place wall 23. FIG.
In this pipe passing method, step 1 in which the pipe unit 2 of the pipe passing tool 1 is inserted into the opening 25 of the drain pipe 24 to be clogged 26, the faucet 28 and the cock 5 are opened, and the liquid guide pipe 3 is opened. From the liquid introduction hole 17 of the joint member 16 into the in-pipe space 13 of the pipe body 7.

  Therefore, first, as Step 1, the operator inserts the tip 8 of the tube 7 of the tube unit 2 from the opening 25 of the drain pipe 24 (FIG. 4). Next, as step 2, the operator opens the faucet 28 and the cock 5. Then, the pressurized liquid W from the liquid introduction pipe 29 is introduced into the in-pipe space 13 of the pipe body 7 through the cock 5 and the liquid introduction pipe 3. Thereby, the inner peripheral surface 12 of the tubular body 7 is pressed outward in the tubular body radial direction (the directions of arrows E and E in FIG. 5A), and the outer peripheral surface portion 11 expands and elastically deforms. As a result, the outer peripheral surface portion 11 of the tubular body 7 is in close contact with the inner peripheral surface 35 of the drain pipe 24, and the gap 34 between the outer peripheral surface portion 11 of the tubular body 7 and the inner peripheral surface 35 of the drain pipe 24 (see FIG. 4). ) And the space 30 in the drain pipe 24 is sealed. At this time, the pressurized liquid W is simultaneously ejected from the spray hole 9 of the tube body 7 into the space 30 of the drain pipe 24. Thereby, the pressurized liquid W flows into the space 30 of the drain pipe 24, and the pressure in the space 30 increases (FIG. 5B). Among these, when the pressurized liquid W fills the space 30 of the drain pipe 24, the pressure in the space 30 is further increased by the original pressure of the pressurized liquid W (FIG. 5C). The clogging 26 is caused to flow in the direction of the arrow F without being able to withstand the pressure rising in the heating space 30 (FIG. 5D). The time required for this pipe passing operation is only about 1 minute from the opening of the faucet 28 and the cock 5 until the clogging 26 flows out. In addition, the success rate for pipes was close to 100%.

  As described above, the pipe device 1 and the pipe method using the pipe device 1 according to the present embodiment are as long as the distal end portion 3 of the tube body 2 is inserted into the opening 25 of the drain pipe 24, and then the ground. It is only necessary to open and close the cock 5 and the faucet 28 on 23. Thus, the inside of the drain pipe 24 is sealed by the outer peripheral surface portion 11 of the pipe body 7 swelled with the pressurized liquid W, and the pressurized liquid W is introduced into the drain pipe 24 from the spray hole 9 of the pipe body 7. .

  Therefore, according to this pipe connection tool 1, even if it is not a specialist engineer but a general household person, the drain pipe 24 can be passed through easily, quickly, or reliably. Incidentally, in many cases, the clogging 26 can be removed within only one minute after the faucet 28 and the cock 5 are opened after the tube unit 2 is inserted. Even when the distance from the opening 25 of the drain pipe 24 to the clog 26 is long, or even when the drain pipe 24 has a bent portion, the pressurized liquid W is the source of operation, so the clog removal operation Has little effect.

  In particular, in this through-tube tool 1, the action of inflating the tube body 7 to seal the drain pipe 24 with only one fluid (pressurized liquid W) and the action of feeding the pressurized liquid W into the drain pipe 24. Both can be presented. For this reason, only one system for handling the fluid is required, so that the configuration is simple and inexpensive, and it is small and light. Furthermore, for example, a ball valve that opens when the liquid pressure in the pipe inner space 13 of the pipe body 7 exceeds a predetermined pressure, a pressure regulating valve with a coil spring, and the like are provided in the spray hole 9 of the pipe body 7. Because it is not, it will be even simpler and cheaper. Therefore, the through-tube tool 1 is suitable as a through-tool used for a relatively small-diameter drain pipe. In addition, it is easy to use because only one valve operation is required.

  On the other hand, if an ice piece or a sponge piece is put in the drain pipe 24 in advance prior to the insertion of the pipe body 7 into the drain pipe 24, the minute gap that can leak in the clogging 26 is removed from the pressurized liquid. During pressurization with W, ice pieces and sponge pieces are blocked to reduce pressure loss. In particular, the sponge piece is highly elastic and difficult to ventilate when it contains water, so it sufficiently closes the clogged minute gaps. And, since the ice pieces melt and become harmless water after use, there is no need for post-treatment. In addition, there is an advantage that ice pieces can be easily procured at any household.

“Embodiment 2.”
In the first embodiment, the tubular unit 2 is illustrated in which the other end portion of the joint member 16 is aligned with the opening end of the opening 10 on the other end side of the tubular body 7. It is not limited, For example, the tubular body unit 2A as shown to Fig.6 (a) is also included. The tubular unit 2A includes a tubular body 7A that does not have the peripheral flange 15 (see FIG. 2) at the outer peripheral portion of the other end, the joint member 16 described in the first embodiment, and the fixing member 40 described in the first embodiment. It consists of and. On the other end side of the tubular body 7A, an extending portion 31 is formed that extends in a direction away from the distal end portion 8 of the tubular body 7 with a fixing position of the joint member 16A by the fixing member 40 as a boundary. The other end edge of the extending portion 31 is a tube opening 32.

  According to this tubular body unit 2A, the cylindrical opening 32 of the extending part 31 is turned outward of the fixing member 40, and the extending part 31 is folded at the position of the folded part 33, whereby FIG. ), The extending portion 31 is turned over to cover the fixing member 40. As a result, the stainless steel plate band 20 and the set screw 21 made of metal are covered with the extending portion 31 of the rubber tube 7A. Therefore, when the tubular body unit 2A is inserted into the drain pipe 24, the inner peripheral surface of the drain pipe 24 is directly rubbed with the stainless steel plate band 20 or the set screw 21, and the dirt adhered to the inner peripheral surface of the pipe. Can be prevented from being scraped off or scratched on the drain pipe 24 itself. Further, since a soft rubber material appears on almost the surface of the tubular unit 2A, the touch and appearance are soft, so that it is easy for the operator to handle.

  In addition, each shape and connection aspect regarding the tubular body and the liquid guide pipe of the present invention are not limited to those of the above-described embodiments. The pressurized liquid applied to the present invention is most preferably water from the viewpoint of easy availability, low cost, safety, easy post-treatment, etc., but other than water, for example, vegetable oil, glycerin, ethylene glycol and other safe liquids May be used.

DESCRIPTION OF SYMBOLS 1 Pipe | tube tool 2, 2A Tubular unit 3 Liquid guide pipe 5 Cock 7, 7A Tubing body 8 Tip part 9 Spray hole 10 Other end side opening 11 Outer surface part 11A Outer surface 16 Joint member 17 Liquid guide hole 20 Made of stainless steel plate Band 21 Set screw 24 Drain pipe 25 Opening 26 Clogging 31 Extension part 33 Folding part 35 Inner peripheral surface 40 Fixing member E Arrow W Pressurized liquid

Claims (3)

A pipe body inserted into the opening of the drain pipe and a liquid guide pipe connected to the end part of the pipe body for introducing pressurized liquid into the drain pipe, and the pipe body is integrally formed of a rubber material. Formed at the distal end of the tubular body, and a joint member for connecting to the liquid guiding pipe is sealed at the other end side opening of the tubular body. The outer peripheral surface portion is elastically deformed by introduction of pressurized liquid into the pipe body and expands outward in the radial direction of the pipe body so as to be in close contact with the inner peripheral surface of the drain pipe. The diameter of the fountain hole formed so as to be thicker in the cylinder center direction than the wall thickness of the outer peripheral surface portion and penetrating through the tip is set to be smaller than the diameter of the liquid introduction hole of the joint member. A tube tool characterized by having The joint member is fixed to the pipe body by a fixing member attached to the outer peripheral surface of the pipe body, and an extension portion extending from a fixing position by the fixing member is formed on the other end side of the pipe body. 2. The tube-carrying device according to claim 1, wherein the existing portion is folded to cover the fixing member.  The tubular body in the through-tube device according to claim 1 or 2 is inserted from an opening of a drain pipe to be clogged, and the outer peripheral surface portion of the tubular body is formed by introducing pressurized liquid from the liquid introduction pipe. Inflate and seal tightly to the inner peripheral surface of the drain pipe to seal the gap between the outer peripheral surface portion of the pipe body and the inner peripheral surface of the drain pipe, and to eject pressurized liquid from the jet hole of the pipe body into the drain pipe A tube-passing method characterized by.

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