JP2005240947A - Instrument connection pipe and pipe arrangement unit using same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide instrument connection pipe of large bending allowance range enabling sure connection of an instrument and pipe in a limited space, and also to provide pipe arrangement unit using the same. <P>SOLUTION: In the instrument connection pipe 1 made of flexible pipe, a zone in which bellows 20 is formed is provided just in a predetermined circumference direction of the instrument connection pipe 1. Consequently, the instrument and pipe are surely connected even in a narrow space. The space saving pipe arrangement unit excellent in assemblability is materialized by forming a pipe arrangement unit by connecting such instrument connection pipe 1 between the instrument and pipe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an appliance connection pipe for connecting an appliance such as a urinal or a urinal and piping, and a piping unit using the same.

  In recent years, in a building where tenants occupy each floor, the floor and toilet have been renovated in accordance with the tenant's occupancy on a specific floor. In this renovation, two types of work can be considered: when performing plumbing for the toilet and when performing plumbing for the ceiling and floor piping. However, when performing ceiling and back piping work, floor work on the upper and lower two floors including the floor to be repaired and the floor below it is necessary, and the floor below the floor to be constructed cannot be used for the piping work.

  On the other hand, there is no such thing as floor piping work, and there is little work to make holes in the slab, so there is no need to damage the building frame. In addition to this, there are cases where electric wires or the like are arranged in the slab, but these can be prevented from being damaged in the piping work. Therefore, regarding the repair of the toilet, the floor piping work is preferable to the ceiling back piping work.

  FIG. 6 shows an example in which a general instrument connection pipe is used to connect equipment such as a urinal and a urinal to the pipe when performing this floor piping work.

  As can be seen from this figure, the pipe 70 is disposed below the lining 80, and the toilet 30 is disposed in the vicinity of the lining 80. Here, consider the case where the appliance drain 31 and the pipe 70 of the toilet 30 are attached by a general appliance connection pipe 90. If the appliance connection pipe 90 of 75A is normally attached to the appliance drain 31 having a height H (usually around 170 mm) from the floor, it may be attached only when a part of the pipe 70 is buried as shown in FIG. I understand. And in order to solve this, it is necessary to use the instrument connection pipe | tube 91 provided with the bellows as shown in FIG. 7 (for example, refer patent document 1 and patent document 2).

Shokai 52-5465 (page 3-5, Fig. 1) JP 2002-195464 (page 3-5, FIG. 1)

  On the other hand, a problem in carrying out floor piping work is that the size of the lining 80 in the toilet is limited because it is difficult to make a large toilet space. That is, since the toilet space is limited, the lining itself cannot be enlarged. Further, it is necessary to pass the pipe 70 through the lining 80 of the limited size and to dispose the instrument connecting pipe 91 between the toilet 30 and the pipe 70. Therefore, it is necessary to devise the shape of the instrument connecting pipe 91 in the lining. In addition, the instrument connection pipe | tube 91 as described in patent document 1 and patent document 2 has the structure which formed the bellows uniformly over the perimeter of a connection pipe circumference. When the bending tolerance of the appliance connecting pipe in the downward bending direction is large, it is advantageous in connecting the appliance and the pipe. However, the appliance connecting pipe 91 as described in Patent Document 1 and Patent Document 2 is uniformly in all directions. Although there is an advantage of being bent, since the bending tolerance in a specific direction is small, the corresponding range of connection between the toilet 30 and the pipe 70 is limited, and the connection between the toilet 30 and the pipe 70 cannot be made. Or the connection work is extremely difficult, and the piping work may be hindered.

  Further, when a plurality of toilets 30 are connected by a horizontally-drawn pipe 71 as shown in FIG. 8, the drop of the appliance connection pipe 91 that connects the drain port of the toilet 30 and the pipe 71 increases depending on the location (FIG. 8). In the middle, see Δh3), the instrument connecting tube 91 having the normal bellows structure described in Patent Document 1 and Patent Document 2 described above cannot be supported. In order to connect, it is effective to bend the instrument connection pipe side to the pipe side to some extent, so as shown in FIG. 9, the instrument connection side end portion 92a has a bending angle of 5 °, 25 °, 40 °, etc. Many types of instrument connecting pipes 92 bent at predetermined angles were prepared in accordance with the bending angles. If various types of instrument connecting pipes 92, 92 ′, 92 ″, etc. having fixed bending portions 92a with different bending angles at the end portions are prepared, it is not possible to share parts, and inventory management is performed. Therefore, an instrument connection pipe having a structure with a large bending allowance in a specific direction that can cope with various positional relationships between the instrument drain and the pipe is desirable. It is.

  An object of the present invention is to provide an instrument connection pipe having a large bending tolerance and capable of reliably connecting an instrument and piping in a limited space and a piping unit using the same.

  In order to solve the above-described problem, the instrument connection tube according to the present invention is characterized in that in the instrument connection tube formed of a flexible tube, a region in which a bellows is formed only in a predetermined circumferential direction of the instrument connection tube is provided. It is said.

  When such an instrument connection pipe is used, the instrument connection pipe itself can be sufficiently bent by sufficiently extending the bellows only in a predetermined circumferential direction. That is, it can be set as the instrument connection pipe of the bellows structure whose bending tolerance range is larger than the instrument connection pipe of the conventional bellows structure, and the instrument and the pipe can be reliably connected even in a narrow space.

  The instrument connection tube according to claim 2 of the present invention is an instrument connection tube made of a flexible tube, wherein one end side of the instrument connection tube forms a bellows only in a predetermined circumferential direction, and the other end side is the whole. It is characterized by the formation of bellows around the circumference.

  By using such an instrument connection tube, it is possible to sufficiently bend one end side of the instrument connection tube even in a narrow space to increase the connectable range, and the other end side makes use of the flexibility of the bellows. Even when the positional relationship between the instrument and the pipe is shifted, it can be reliably connected.

  In addition, the instrument connecting pipe according to claim 3 of the present invention is an instrument connecting pipe made of a flexible tube, the instrument connecting pipe has a bent portion, and the bent portion forms a bellows only at the outer bent portion. It is characterized by that.

  By using such an instrument connection pipe, the bent portion of the instrument connection pipe can be sufficiently bent, and the instrument and the pipe can be reliably connected even in a narrow space.

  The instrument connection tube according to claim 4 of the present invention is an instrument connection tube made of a flexible tube, and the predetermined circumferential direction is an upper part of the instrument connection tube in a connected state of the instrument connection tube to the instrument. The instrument connecting pipe according to claim 1, wherein the instrument connecting pipe is provided.

  By forming the bellows in this portion, it is possible to reliably connect an instrument and a pipe having a narrow interval and a height difference in positional relationship.

  In addition, the instrument connection pipe according to claim 5 of the present invention is an instrument connection pipe made of a flexible tube, and the instrument connection pipe includes an end portion in which a bellows is formed only in a predetermined circumferential direction. It is characterized in that one end is connected to the instrument.

  By using such an instrument connection pipe, it becomes possible to bend sufficiently in the vicinity of the connection portion between the instrument connection pipe and the instrument.

  In addition, the instrument connection pipe according to claim 6 of the present invention is the instrument connection pipe according to claim 5, wherein the central axis of one end is a central axis of the connection opening of the instrument to which the instrument connection pipe is attached. It is characterized by being parallel or matched.

  If this one end is attached obliquely to the central axis of the connection opening of the device, when the device connection tube is crushed and connected between the device and the piping, the water flow characteristics inside the device connection tube will be reduced. The effective diameter that influences is narrowed, and the clogging of the passing material tends to occur in this portion. However, by making the central axis of one end parallel or coincide with the central axis of the connection opening of the instrument to which the instrument connection pipe is attached, the one end of the instrument connection pipe is a so-called straight part with respect to the connection opening of the instrument. And is not attached obliquely as described above, and an effective diameter inside the instrument connecting pipe can be secured. As a result, the passing material does not become clogged inside the instrument connecting pipe.

  Moreover, the instrument connecting pipe according to claim 7 of the present invention is the instrument connecting pipe according to claim 5 or 6, wherein the water passing through the instrument connecting pipe is directed from one end connected to the instrument to the other end. It is characterized by a large cross-sectional area.

  By using such an instrument connection pipe, the instrument and the pipe can be reliably connected even in a narrow space, and the passage of the instrument connection pipe is prevented from clogging.

  In addition, when the appliance connection pipe is crushed between the appliance and the pipe, the effective diameter that affects the water flow characteristics inside the appliance connection pipe becomes narrow at the bent portion of the appliance connection pipe, but it is connected to the appliance. Since the water flow cross-sectional area of the instrument connecting pipe increases from one end to the other end, an effective water cross-sectional area can be secured even at the bent portion, and clogging of passing materials can be prevented.

  Moreover, the instrument connecting pipe according to claim 8 of the present invention is a piping unit in which finishing is arranged on the front and upper surfaces of the lining frame, piping is provided inside, and the instrument is connected via the instrument connecting pipe. The appliance connection pipe according to any one of claims 1 to 7 is used as the appliance connection pipe.

  By configuring the piping unit in this way, it is possible to realize a piping unit that is less likely to cause clogging of passing materials in the instrument connecting pipe with only a few types of instrument connecting pipes while saving space.

  According to the present invention, since the device connection pipe having the bellows structure having a larger bending tolerance than the conventional device connection pipe having the bellows structure, the device and the pipe can be securely connected within a limited space by a small number of kinds of the device connection pipes. Can be connected.

  As a result, in the case of renovation of a specific floor of a building where tenants are occupying each floor, it is possible to avoid ceiling piping work that makes it impossible to use the floor on the lower floor, and within a small lining. The appliance connection pipe can be easily attached, and the workability of the toilet repair work can be improved and the toilet space can be saved.

  Hereinafter, an instrument connection pipe and a piping unit using the same according to an embodiment of the present invention will be described. The appliance connection pipe 1 according to an embodiment of the present invention is installed in a toilet lining and connects a cheese (T-shaped pipe) receiving port that forms part of the piping and an appliance drainage port of a toilet (tool). It is a connecting pipe. The instrument connecting tube 1 has a flexible portion made of soft vinyl chloride, and as shown in FIG. 1, a bellows 20 is formed in a predetermined portion around it, and as shown in FIG. The water flow cross-sectional area of the end portion 11 is determined according to the diameter of the drain on the appliance side, and the water flow cross-sectional area of the other end portion (pipe connection side end portion) 12 is formed larger than the one end portion 11. (Refer to the comparison between the tube diameter D1 and the tube diameter D2 in FIG. 4).

  One end 11 of the appliance connecting pipe is connected to the appliance drain 31 (see FIGS. 2 and 4) of the toilet 30 via the drainage flange 40, and the other end is connected to the receiving port 51 of the cheese 50 with the fastening fitting 60. It is designed to be connected via

  In addition, as can be seen from FIG. 2, the instrument connecting pipe 1 has a bent portion in the vicinity 23 of the one end 11, and the instrument connecting pipe 1 is connected between the toilet 30 and the cheese 50. In this state, the bent portion connects the one end portion 11 to be higher than the other end portion 12, and as shown in FIG. 4, the opening center axis line X 1 of the one end portion 11 and the opening center axis line of the other end portion 12. X2 is biased and attached. In addition, the central axis of the one end portion 11 near the appliance drain of the appliance connecting pipe is attached in parallel to the central axis of the appliance drain. By having the above configuration, the appliance connecting pipe 1 is attached in a state where the vicinity of one end is bent three-dimensionally in a limited narrow space between the appliance drain 31 of the toilet 30 and the cheese 50. It has become.

  A bellows 21 is formed only in a part of the circumferential direction in the predetermined region in the longitudinal direction from one end side (see region A in FIG. 2), and the predetermined region in the longitudinal direction (in FIG. 2) from the other end side. In the region B), the bellows 22 is formed in the entire circumferential direction. Specifically, in a certain region from the one end portion 11 that is the connection side with the toilet 30, the portion that extends most in the circumferential direction with the instrument connecting tube 1 attached, that is, the attached state of the instrument connecting tube 1 The bellows 21 is formed only in the upper portion in the circumferential direction as seen (see FIG. 2). And the bellows is not formed in the part which compresses in the circumferential direction in the state which attached the instrument connection pipe 1, ie, the circumferential direction lower part seeing in the attachment state of the instrument connection pipe 1, and this part is an instrument connection. A bellows-free region 25 of the tube 1 is formed.

  Moreover, the bellows 22 is formed in the other end side of the instrument connection pipe 1 in the whole circumferential direction as mentioned above. As a result, the bellows 22 expands and contracts on the other end side of the appliance connecting tube 1 to absorb this shift even if the receiving port 51 of the cheese 50 is slightly displaced. Thereby, as will be described later, an instrument connecting tube having a larger bending tolerance than the conventional instrument connecting tube having the bellows structure is realized.

  On the other hand, one end of the instrument connecting pipe 1 is formed so as to expand so as to coincide with a tapered portion 41 (see FIGS. 1 and 3) of a drainage flange 40 attached to the instrument drain port 31 of the toilet 30. . The one end 11 of the appliance connecting pipe 1 is fixed to the tapered portion 41 of the drainage flange 40 by an adhesive or a fastening means (not shown), and is connected to the appliance drain 31 of the toilet 30 via the drainage flange 40 in a liquid-tight manner. It has come to be.

  Further, the other end portion 12 of the appliance connecting tube 1 is formed so as to cover the receiving port 51 of the cheese 50. The other end portion 12 is attached to the receiving port 51 of the cheese 50 via an adhesive and is fastened by a tightening ring 60. Thereby, the other end side of the appliance connection pipe 1 can also be liquid-tightly connected to the receiving port 51 of the cheese 50.

  Hereinafter, the operation of the instrument connecting pipe 1 having such a structure will be described. The instrument connecting tube 1 has flexibility and is attached to the toilet 30 in the bent state at one end side of the instrument connecting tube 1, but in the circumferential direction with respect to the bending of the instrument connecting tube 1 at the one end side. The bellows 21 is formed only on the outer side of the bend (the portion where the outer periphery of the tube extends), and no bellows is formed on the inner side of the bend (the portion where the outer periphery of the tube is compressed) in the circumferential direction. The permissible range for bending in the vicinity of one end portion of 1 is remarkably widened with respect to a conventional instrument connecting tube in which bellows are formed in the entire circumferential direction. That is, when connecting the appliance connection pipe 1 between the appliance drain 31 of the toilet 30 and the cheese 50, the appliance connection side end (one end) that needs to be bent most can be sufficiently bent. .

  Moreover, even if the attachment position of the other end part 12 of the instrument connection pipe 1 and the cheese 50 is slightly deviated for each instrument connection pipe, the circumferential direction is constant in the longitudinal direction from the other end part 12 of the instrument connection pipe 1. Since the bellows 22 is formed over the entire circumference, this attachment position shift can be absorbed in this portion.

  By having such a structure, it can be set as the instrument connecting pipe with a large bending | flexion tolerance compared with the conventional instrument connecting pipe with a bellows. Specifically, as shown in FIG. 5 (a), the conventional instrument connection pipe having the bellows structure can be bent up and down by an angle α in an attached state with respect to the neutral extending direction NL. The amount of bending in the downward direction for improving the mounting property of the instrument was insufficient, but the instrument connecting tube according to the present embodiment is in the mounted state with respect to the neutral extending direction NL as shown in FIG. It is possible to bend in the range of the angle α upward and the angle β considerably larger than the angle α downward. As a result, the cheese 50 is passed through the small lining and the appliance connection pipe 1 is disposed, and the space between the toilet bowl and the pipe is narrow to perform the piping work on the floor, and the appliance connection pipe is bent in a complicated manner. Even under conditions that must be attached in a state of being attached, the instrument connecting pipe according to the present embodiment can thus cope with restrictions on attachment.

  In addition, when installing toilets in a series, it is necessary to connect the horizontal pipes with a slope, and the horizontal pipes must have a slope. Although the positional relationship of the direction becomes different for each instrument connecting pipe to which the direction is attached, even in such a case, it is formed from the other end of the instrument connecting pipe 1 over the entire circumference in the constant region in the longitudinal direction. Since the permissible range is increased in the bending direction required by the bellows 22, it is possible to absorb the deviation of the mounting position in the height direction.

  This eliminates the need for preparing various types of bellows-equipped instrument connecting pipes having bending portions with different bending angles at one end attached to the instrument drainage port so as to correspond to such horizontally drawn piping.

  Moreover, since the water flow cross-sectional area of the instrument connecting pipe 1 increases from one end 11 connected to the instrument drain port 31 of the toilet 30 toward the other end 12, the toilet 30 and the cheese 50 in a narrow space. In addition to being able to connect securely, it prevents clogging of dirt in the instrument connection pipe.

  Further, when the appliance connection pipe 1 is crushed and connected between the toilet 30 and the pipe 70, the effective diameter that affects the water flow characteristics inside the appliance connection pipe 1 becomes narrow at the bent portion of the appliance connection pipe 1. However, since the water flow cross-sectional area of the instrument connecting pipe 1 increases from one end connected to the toilet 30 to the other end, an effective water cross-sectional area can be secured even at the bent portion, and the passage You can prevent clogging.

  By connecting the appliance connecting pipe 1 between the toilet bowl and the pipe and constructing a piping unit having the toilet connecting pipe and the appliance connecting pipe for connecting them, the waste can be drained from the toilet bowl. Since the effective system of the bellows can be secured sufficiently, filth can flow smoothly.

  Further, since the central axis of one end of the instrument connecting pipe and the central axis of the instrument drain are parallel, one end of the instrument connecting pipe is formed as a straight portion perpendicular to the opening surface of the instrument drain. Therefore, when the appliance connecting pipe is attached between the appliance and the pipe, one end of the appliance connecting pipe is not crushed, and the water passage performance at this portion is not deteriorated. As a result, clogging of filth is difficult to occur.

  As described above, the appliance connection pipe 1 is connected to a position where one end side connected to the appliance is higher than the other end side connected to the pipe in a mounted state in order to exhibit its water flow performance, and is a narrow space. However, on one end side (appliance connection side) of the instrument connection pipe 1, a bellows is formed only in a predetermined circumferential direction, and the other end side is a bellows on the entire circumference. By forming the pipe, it is possible to bend one end side of the instrument connection pipe in one direction considerably in a narrow space and connect the instrument and the pipe with the other end side extended to some extent. The allowable height can be increased. As described above, since the allowable bending range can be increased as compared with the conventional instrument connection pipe with bellows, it is possible to cope with various positional relationships between the instrument and the pipe in a narrow space in the lining.

  Also, by using such an appliance connection pipe in a piping unit having an appliance, piping, and an appliance connection pipe for connecting the appliance and the piping, a piping unit that saves space with a small number of types of appliance connection pipes. Can be realized.

  In this embodiment, the instrument connecting pipe provided with the bellows is made of soft vinyl chloride. However, the present invention is not limited to this, and any material can be used as long as it is flexible and water resistant. It may be made.

  Moreover, it is needless to say that the appliance connection pipe is not limited to the case where the toilet bowl and the pipe are connected, and can be used also when the toilet bowl and the pipe are connected.

  Moreover, although the other end part of the instrument connection pipe was attached to the receptacle of cheese through the adhesive and the fastening metal fitting, it is not necessarily limited to this and may be attached only by the fastening metal fitting.

  Moreover, although cheese and the pipe connected to this were described about the hard vinyl chloride pipe | tube, it can apply similarly to other steel pipes and stainless steel pipes.

  Moreover, the attachment position relationship between the appliance connection pipe and the appliance and the pipe is not limited to the attachment position relationship of the above-described embodiment, and includes any attachment position relationship that exhibits the water passing performance of the appliance connection pipe.

  The appliance connection pipe according to the present invention is not limited to the scope of application only when drainage of filth and urine by connecting a toilet or urinal and piping, and other so-called slurry fluid flows from the appliance to the piping. It is also applicable to cases.

It is the perspective view which looked at the instrument connecting pipe concerning one Embodiment of this invention from the diagonal side. It is a side view in the state where the instrument connection pipe shown in Drawing 1 was attached to an instrument and piping. It is the perspective view which looked at the instrument connection pipe | tube shown in FIG. 1 from diagonally upward. It is the figure seen from the arrow Y direction of FIG. 2 in the state which attached the instrument connection pipe | tube shown in FIG. 1 to the instrument and piping. It is the figure which showed the bending | flexion tolerance (FIG.5 (a)) of the conventional instrument connection pipe | tube with a bellows, and the bending | flexion tolerance (FIG.5 (b)) of the instrument connection pipe | tube concerning this embodiment. It is the schematic which showed the state which connected the conventional appliance connection pipe | tube between the toilet bowl and piping by floor piping construction. It is the schematic which showed the state which connected the instrument connection pipe | tube with the conventional bellows between the toilet bowl and piping. It is the schematic which showed the state which each connected the several instrument connection pipe | tube attached to the some toilet bowl to the horizontal piping. It is the schematic which shows the state which connected between the toilet bowl and piping with the modification provided with the fixed bending part in the edge part of the conventional instrument connection pipe | tube with a bellows.

Explanation of symbols

1 device connection pipe 11 one end (device connection side end)
12 Other end (Pipe connection side end)
20-22 bellows 23 vicinity part 25 bellows non-formation area 30 toilet 31 instrument drainage port 40 drainage flange 41 taper part 50 cheese 51 receiving port 60 fastening metal fitting 70 piping 80 lining 90 instrument connecting pipe 91 instrument connecting pipe 92, 92 ', 92 "... Appliance connection tube 92a Fixed bending part

Claims (8)

  An instrument connection tube comprising a flexible tube, the instrument connection tube comprising a region in which a bellows is formed only in a predetermined circumferential direction of the instrument connection tube.   An instrument connection tube comprising a flexible tube, wherein the one end side of the instrument connection tube forms a bellows only in a predetermined circumferential direction, and the other end side forms a bellows all around.   An instrument connection tube comprising a flexible tube, wherein the instrument connection tube has a bent portion, and the bent portion has a bellows formed only at an outer bent portion.   3. The instrument connecting pipe comprising a flexible pipe, wherein the predetermined circumferential direction is an upper part of the instrument connecting pipe in a connected state of the instrument connecting pipe to the instrument. Instrument connecting tube according to crab.   An instrument connection tube made of a flexible tube, wherein the instrument connection tube includes an end portion having a bellows formed only in a predetermined circumferential direction, and the one end portion of the instrument connection tube is connected to the instrument. Instrument connecting tube.   6. The instrument connecting pipe according to claim 5, wherein a central axis of the one end is parallel or coincides with a central axis of a connection opening of an instrument to which the instrument connecting pipe is attached.   The instrument connection pipe according to claim 5 or 6, wherein a water cross-sectional area of the instrument connection pipe increases from one end connected to the instrument to the other end. A piping unit that has a finish on the front and top surfaces of the lining frame, has piping inside, and connects the equipment through the equipment connecting pipe. The equipment connecting pipe according to any one of claims 1 to 7. A piping unit using the appliance connecting pipe described.

Images