JP2017223315A - Set of waterproof and deodorization packings, method of application of waterproof and deodorization packings and pipe connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a set of waterproof and deodorization packings, a method of application of waterproof and deodorization packings and a pipe connection structure in which five patterns of combinations of pipe diameters of an upstream side pipe and a downstream side pipe can be adapted by one product when the upstream side pipes and downstream side pipes having different diameters are applied for water discharging around sanitary equipment such as a sink or a wash stand and the like.SOLUTION: This invention relates to a set of waterproof and deodorization packings applied between upstream side pipes 1, 2 for water discharging communicated with water discharging ports of a sink and a wash stand or the like and a downstream side pipe communicated with drainage. This invention comprises a substantial cylindrical small diameter packing 6 in which small diameter or middle diameter upstream side pipes 1, 2 can be selectively inserted under a sealed state and a small diameter downstream side pipe can be outwardly fitted under a sealed state, and a substantial cylindrical large diameter packing 7 in which an upstream side large diameter pipe can be inserted under a sealed state and a large diameter downstream side pipe can be outwardly fitted under a sealed state and further the small diameter packing 6 is fitted to or removed from an inside part of the large diameter packing 7 to enable itself to be combined or separated.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a set of waterproof / deodorant packings and a waterproof / deodorant packing used between a drain upstream pipe connected to a drain of a sanitary facility such as a sink and a wash basin and a downstream pipe connected to sewage. Is related to the usage method and piping connection structure.

  For example, a simple trap is known in which drainage from a drain of a wash basin flows from a substantially U-shaped water reservoir to a cleaning pipe (upstream pipe) and reaches a downstream pipe connected to sewage. This simple trap has a waterproof and deodorant packing mainly for waterproofing (bounce of water from the downstream piping), deodorization (reverse flow of odor from the downstream piping), or insects such as cockroaches. It is provided between the upstream cleaning pipe and the downstream piping and is used for draining the washstand. A cleaning pipe is inserted into the packing from above, and a downstream pipe is externally fitted from below.

Japanese Utility Model Publication No. 63-26465

  By the way, as a conventional waterproof / odor-proof packing, a small-diameter packing in which an upstream pipe having a pipe size of, for example, 25 mm or a diameter of 32 mm can be alternatively inserted, or a pipe size of, for example, a diameter of 38 mm or 32 mm. Although there is a large-diameter packing in which the upstream pipe of the diameter can be inserted selectively, the former packing cannot be applied to the downstream pipe of 50 mm diameter that is externally fitted to the latter packing, The latter packing has a problem that it cannot be applied to a downstream pipe having a diameter of 40 mm that is externally fitted to the former packing. That is, as the packing, there is an a type that can be used for upstream pipes having different diameters of 25 mm and 32 mm, or a b type that can be used for upstream pipes having different diameters of 32 mm and 38 mm. However, the packing that can be fitted to the downstream pipe having a diameter of 40 mm is only a-type packing, and the packing that can be fitted to the downstream pipe having a diameter of 50 mm is only b-type packing. Therefore, the products must be divided according to the pipe diameter (40 mm diameter, 50 mm diameter) of the downstream piping. As a result, there is no reduction in the inventory of distributors, and there is a mistake in material selection (selection) at the pipe construction site when the product is shipped to the piping construction site, or there is a material selection (selection) mistake at the piping construction site. In some cases, it is necessary to re-select the material (selection), which wastes time and effort.

  Furthermore, there exists a thing shown in patent document 1 as a conventional waterproofing and deodorizing packing used for the drainage of a washstand. As shown in FIG. 4, the packing 40 described in Patent Document 1 is used to connect the upstream pipe 41 and the downstream pipe 42, and by introducing an adapter (not shown) separately. The upstream pipe 41 is adapted to be connected to a downstream pipe (not shown) having a diameter different from that of the downstream pipe 42. However, even in Patent Document 1, there is a problem that one product cannot be dealt with, and the products must be divided according to the diameter of the upstream pipe 41.

  The present invention has been made in view of the above problems, and for example, upstream pipes having different diameters of 25 mm, 32 mm, and 38 mm, and different diameters of 40 mm and 50 mm, for drainage around sanitary facilities such as sinks and washstands. When using downstream pipes with one product, one product can handle combinations of five pipe sizes for upstream pipes and downstream pipes, and can prevent (reduce) material selection (selection) mistakes by pipe construction companies. It is an object of the present invention to provide a waterproof / deodorant packing set, a method for using the waterproof / deodorant packing, and a pipe connection structure that can contribute to reducing the inventory of distributors.

In order to achieve the above object, the waterproof and deodorant packing set of the present invention is a waterproofing unit used between a drain upstream pipe connected to a drain outlet such as a sink and a wash basin and a downstream pipe connected to sewage. A set of deodorant packing,
A substantially cylindrical small-diameter packing in which a small-diameter or medium-diameter upstream pipe can alternatively be inserted in a sealed state, and a small-diameter downstream pipe can be externally fitted in a sealed state;
The large-diameter upstream pipe can be inserted in a sealed state, and the large-diameter downstream pipe can be fitted in a sealed state with a substantially cylindrical large-diameter packing,
Furthermore, the small-diameter packing is fitted into and detached from the inside of the large-diameter packing so that it can be combined and separated (Claim 1).

Further, in the present invention, an outward flange that contacts the upper end of each downstream pipe is formed on the upper end edge of the cylindrical portion of the small diameter packing and the large diameter packing,
The small-diameter packing and the large-diameter packing are configured so that the small-diameter packing can be inserted into the large-diameter packing so that the small-diameter packing and the large-diameter packing are combined.
The lower end portion of the small-diameter or medium-diameter upstream pipe is inserted into the small-diameter packing, and the small-diameter packing is inserted into the upper end portion of the small-diameter downstream pipe and the flange at the upper end of the small-diameter downstream pipe. Is fitted in a state of contact, and
The lower end of the large-diameter upstream pipe is inserted into the large-diameter packing, and the large-diameter packing is inside the upper end of the large-diameter downstream pipe and at the upper end of the large-diameter downstream pipe. The waterproof / deodorant packing set according to claim 1, which is configured to be fitted in a state in which the flange is in contact with the flange (claim 2).

  Further, in the present invention, an inner protrusion is formed on the inner peripheral surface of the small-diameter packing so that the small-diameter or medium-diameter upstream pipe can be in close contact with it, and the small-diameter downstream pipe can be in close contact with the outer peripheral surface. Outer protrusions are formed so that the large-diameter packing can be brought into close contact with the large-diameter packing, and the large-diameter upstream pipe can be in close contact with the inner peripheral surface of the large-diameter packing, and the small-diameter packing during the coalescence The waterproof / deodorant packing set according to claim 1 or 2, wherein an inner protrusion that can be in close contact is formed so as to protrude, and an outer protrusion that can be in close contact with the large-diameter downstream pipe is formed on the outer peripheral surface. (Claim 3).

  From another viewpoint, the present invention uses the small-diameter packing and / or the large-diameter packing according to any one of claims 1 to 3 according to the diameters of the upstream pipe and the downstream pipe. A method for using the waterproof / deodorant packing is provided (claim 4).

  Further, according to another aspect of the present invention, the small-diameter packing and / or the large-diameter packing according to any one of claims 1 to 3 are arranged upstream according to the diameters of the upstream pipe and the downstream pipe. A pipe connection structure is provided between the side pipe and the downstream pipe.

  In the present invention, the small-diameter packing is fitted into and detached from the inside of the large-diameter packing so that it can be combined and separated, so that it matches the diameters of the small-diameter or medium-diameter upstream pipe and the small-diameter or large-diameter downstream pipe. The use of a small-diameter packing and / or a large-diameter packing can be selected, and a single waterproof / deodorant packing set (one product) can be used for a combination of five pipe diameters of the upstream pipe and the downstream pipe. In other words, according to the diameter of the upstream piping and downstream piping, you can select either small diameter packing, small diameter packing or large diameter packing, or large diameter packing. By combining two large-diameter packings into a product, it is possible to provide versatility in the installation form between the upstream side pipe and the downstream side pipe.

  That is, in the present invention, the small-diameter packing is fitted to the inside of the large-diameter packing and united so that the large-diameter downstream drain pipe can be adapted to be connected to the small-diameter or medium-diameter upstream pipe.

  Also, for example, at the time of shipment, piping construction can be carried out by preparing one set of waterproof and deodorant packings (one product) for each required number in advance by fitting a small-diameter packing into the large-diameter packing. It is possible to give an opportunity for the installer to select the use of each of the products carried in the site according to the pipe sizes of the upstream side pipe and the downstream side pipe to be constructed at the piping construction site. That is, as described above, an opportunity for the installer to select one of the use of a small-diameter packing alone, the state in which the small-diameter packing and the large-diameter packing are combined (assembled state), or the use of the large-diameter packing alone. Can be given. In this way, the state in which the small-diameter packing and the large-diameter packing are assembled is regarded as one product, and this one product is carried into the piping construction site, so that it is possible to prevent (reduce) material selection (selection) mistakes by the pipe construction company.

  In some piping construction sites, only one of the small-diameter packing and the large-diameter packing is used without using both the small-diameter packing and the large-diameter packing (assembled state). In this case, if the unused packing is used at other piping construction sites, waste can be prevented and, in turn, it can contribute to reducing the inventory of distributors.

It is composition explanatory drawing which shows the use condition in the small diameter packing single-piece | unit in one Embodiment of the set of the waterproofing and deodorizing packing which concerns on this invention. It is composition explanatory drawing which shows the use condition at the time of uniting the small diameter packing and the large diameter packing in the said embodiment. It is composition explanatory drawing which shows the use condition by the large diameter packing single-piece | unit in the said embodiment. It is composition explanatory drawing which shows the packing use condition of a prior art example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited thereby. 1 to 3 show an embodiment of the present invention. FIG. 1 is an explanatory diagram of the configuration when only a small-diameter packing is used, and a small-diameter or medium-diameter upstream pipe that can be inserted is indicated by a virtual line. FIG. 2 is an explanatory diagram of the configuration when a small-diameter packing and a large-diameter packing are combined, and the small-diameter or medium-diameter upstream pipe that can be inserted into the small-diameter packing is indicated by a virtual line. FIG. 3 is an explanatory diagram of the configuration when only the large-diameter packing is used. The large-diameter upstream pipe that can be inserted is indicated by a virtual line, while the large-diameter downstream pipe that is externally fitted is indicated by a solid line. Yes. Each of FIGS. 1 to 3 shows a longitudinal sectional view when it is cut through the center line.

  1 to 3, the waterproof / deodorant packing set is made of brass, PP or PE which functions as a cleaning pipe for drainage connected to a drain (not shown) of a sanitary facility such as a sink or a washstand. It is used between the upstream side pipes 1, 2, 3 and the downstream side pipes 4, 5 made of rigid polyvinyl chloride pipes connected to sewage (not shown). That is, the waterproof / deodorant packing set can be inserted in a sealed state with a small diameter (25 mm diameter) upstream pipe 1 or a medium diameter (32 mm diameter) upstream pipe 2 and a small diameter ( 40 mm diameter) downstream pipe 4 that can be fitted externally in a sealed state, and a large diameter (38 mm diameter) upstream pipe 3 that can be inserted in a sealed state with a large diameter (38 mm diameter). The downstream pipe 5 having a diameter of 50 mm comprises a substantially cylindrical large-diameter packing 7 that can be fitted in a sealed state. The small-diameter packing 6 can be fitted into and detached from the inside of the large-diameter packing 7 to be combined and separated. is there. In addition, the said diameter means an outer diameter in the case of upstream piping, and an inner diameter in the case of downstream piping. The upstream pipes 1, 2, and 3 have substantially the same thickness, and the downstream pipes 4 and 5 have various wall thicknesses. The small-diameter packing 6 and the large-diameter packing 7 are formed of a material such as natural rubber, synthetic rubber, or synthetic resin.

  Then, outward flanges 8 and 9 are formed at the upper end edges of the cylindrical portions 6a and 7a of the small diameter packing 6 and the large diameter packing 7, respectively, which are in contact with the upper ends of the downstream pipes 4 and 5. The cylindrical portion 6 a of the small diameter packing 6 can be inserted into the cylindrical portion 7 a of the large diameter packing 7 so that the small diameter packing 6 and the large diameter packing 7 are combined. Further, the lower end portion L of the upstream pipe 1 or 2 having a small diameter (25 mm diameter) or medium diameter (32 mm diameter) is inserted into the small diameter packing 6, and the small diameter packing 6 is downstream of the small diameter (40 mm diameter). The pipe 4 is fitted into the upper end U of the downstream pipe 4 with the flange 8 in contact with the upper end 4a of the downstream pipe 4, and the upstream pipe 3 having a large diameter (38 mm diameter) is attached to the large diameter packing 7. Is inserted into the upper end U ′ of the downstream pipe 5 having a large diameter (50 mm diameter), and the flange 9 is brought into contact with the upper end 5a of the downstream pipe 5. It is configured to be fitted in a contact state. As shown in FIG. 1, the flange 8 is located on the pipe insertion side into which the small or medium diameter upstream pipe 1 or 2 can be inserted. As shown in FIG. 3, the flange 9 is located on the pipe insertion side into which the large-diameter upstream pipe 3 can be inserted.

  Further, on the inner peripheral surface of the small-diameter packing 6, inner protrusions A, B, and C that can be in close contact with the upstream pipe 1 or 2 having a small diameter (25 mm diameter) or a medium diameter (32 mm diameter) are formed. The inner protrusion A has a substantially square shape in cross section, the inner protrusion B has a substantially semicircular cross section, and the inner protrusion C forms an inner flange that forms the lower opening of the small-diameter packing 6 and has a substantially rectangular shape in cross section. Yes. In this embodiment, the inner protrusion A is provided in the vicinity of the upper end of the cylindrical portion 6a, and the inner protrusion B is provided at an appropriate interval in the vertical direction between the inner protrusions A and C. On the outer peripheral surface of the small-diameter packing 6, an outer protrusion D is formed so that the small-diameter downstream pipe 4 can be in close contact and the large-diameter packing 7 can be in close contact when combined. The outer protrusion D has a substantially triangular cross section. At the time of uniting in this embodiment, not only the outer protrusion D but also the flange 8 is in close contact with the inner peripheral surface of the large-diameter packing 7. Specifically, the flange 8 is in close contact with at least the inner peripheral surface of the flange 9 of the large-diameter packing 7. Further, the inner protrusions A, B, C and the outer protrusion D are formed in an annular shape.

  On the other hand, on the inner peripheral surface of the large-diameter packing 7, inner projections E, F, and G that can be in close contact with the large-diameter upstream pipe 3 and can be in close contact with the small-diameter packing 6 when combined are formed. The inner protrusion E has a substantially triangular cross section, the inner protrusion F has a substantially semicircular cross section, and the inner protrusion G forms an inner flange that forms the lower opening of the large-diameter packing 7 and has a substantially rectangular cross section. ing. In this embodiment, the inner protrusion E is provided in the vicinity of the upper end of the cylindrical portion 7a, and the inner protrusion F is provided at an appropriate interval in the vertical direction between the inner protrusions E and G. On the outer peripheral surface of the large-diameter packing 7, an outer protrusion I that can be in close contact with the large-diameter downstream pipe 5 is formed to protrude. The outer protrusion I has a substantially triangular cross section. At the time of uniting in this embodiment, not only the inner protrusion E but also the flange 9 is in close contact with the outer peripheral surface of the small diameter packing 6. Specifically, the flange 9 is in close contact with at least the outer peripheral surface of the flange 8 of the small diameter packing 6. The inner protrusions E, F, G and the outer protrusion I are formed in an annular shape.

  For example, in FIG. 1, at the time of insertion of the small-diameter or medium-diameter upstream pipe 1 or 2 into the small-diameter packing 6, at least the inner protrusions A, C, and C of the inner protrusions A, B, C are the upstream pipe 1 or 2 can be deformed downward and brought into close contact with the insertion of 2 to maintain a sealed state. In order to maintain the sealed state, it is preferable that the outer peripheral surface of the small-diameter upstream pipe 1 can be inserted into the inner protrusion B while sliding. Further, when the small-diameter downstream pipe 4 is externally fitted to the small-diameter packing 6, the outer protrusions D are deformed and closely contacted with the external pipe 4 so that the sealed state can be maintained. In order to maintain the sealed state, the upper end 4a of the downstream side pipe 4 comes into contact with the lower surface 8a of the outward flange 8 at the time when the external fitting of the downstream side pipe 4 is completed.

  For example, in FIG. 3, at the time of inserting the large-diameter upstream pipe 3 into the large-diameter packing 7, at least the inner protrusions E and G of the inner protrusions E, F, and G accompany the insertion of the upstream pipe 3. It can be deformed downward and brought into close contact to maintain a sealed state. In order to maintain the sealed state, it is preferable that the outer peripheral surface of the upstream pipe 3 can be inserted into the inner protrusion F while sliding. Further, when the large-diameter downstream pipe 5 is externally fitted to the large-diameter packing 7, the outer protrusion I can be deformed and brought into close contact with the external pipe 5 so as to maintain a sealed state. Note that the upper end 5a of the downstream pipe 5 comes into contact with the lower surface 9a of the outward flange 9 at the time of completion of the external fitting of the downstream pipe 5 in order to maintain the sealed state.

  Thus, a plurality of sets of one product in a state (combined state) in which the small diameter packing 6 and the large diameter packing 7 are assembled is carried into the piping construction site.

(1) As shown in FIG. 1, the small diameter packing 6 can be used alone in the combination of the small or medium diameter upstream pipe 1 or 2 and the small diameter downstream pipe 4. That is, when the small-diameter packing 6 and the large-diameter packing 7 are separated from the assembled state and the upstream pipe 1 or 2 is inserted into the separated small-diameter packing 6 from the side where the flange 8 is located, the inside of the small-diameter packing 6 At least the inner annular protrusions A and C are deformed downward, for example, so that the outer peripheral surface of the upstream pipe 1 or 2 and the inside of the small diameter packing 6 are in close contact with each other, and the sealed state can be maintained. On the other hand, when the small-diameter downstream pipe 4 is externally fitted to the small-diameter packing 6, the outer annular protrusion D provided on the outer surface of the small-diameter packing 6 is deformed upward, for example, in accordance with the external fitting of the downstream pipe 4. The inner peripheral surface of the side pipe 4 and the outer surface of the small-diameter packing 6 are in close contact with each other, and the sealed state can be maintained. In this case, the remaining large-diameter packing 7 that is not used can be used at other piping construction sites.

(2) As shown in FIG. 2, in the combination of the small-diameter or medium-diameter upstream pipe 1 or 2 and the large-diameter downstream pipe 5, the small-diameter packing 6 and the large-diameter packing 7 are brought together. Use the product itself. That is, the small-diameter packing 6 can be used in a state where the small-diameter packing 6 is inserted into the large-diameter packing 7 and closely contacted (combined). In this case, when the upstream pipe 1 or 2 is inserted into the small-diameter packing 6 from the side where the flange 8 is located, at least the inner annular protrusions A and C inside the small-diameter packing 6 are deformed downward, for example, to the upstream pipe. The outer peripheral surface of 1 or 2 and the inside of the small diameter packing 6 are in close contact with each other, and the sealed state can be maintained. On the other hand, when the large-diameter downstream pipe 5 is externally fitted to the large-diameter packing 7, the outer annular protrusion I provided on the outer surface of the large-diameter packing 7 is deformed upward, for example, with the external fitting of the downstream pipe 5. Thus, the inner peripheral surface of the downstream pipe 5 and the outer surface of the large-diameter packing 7 are in close contact with each other, and the sealed state can be maintained.

(3) As shown in FIG. 3, in the combination of the large diameter upstream pipe 3 and the large diameter downstream pipe 5, the large diameter packing 7 can be used alone. That is, when the small-diameter packing 6 and the large-diameter packing 7 are separated from the assembled state (merged state), and the upstream pipe 3 is inserted into the separated large-diameter packing 7 from the side where the flange 9 is located, At least the inner annular projections E and G on the inner side of the packing 7 are deformed downward, for example, so that the outer peripheral surface of the upstream pipe 3 and the inner side of the large-diameter packing 7 are in close contact, and a sealed state can be maintained. On the other hand, when the large-diameter downstream pipe 5 is externally fitted to the large-diameter packing 7, the outer annular protrusion I provided on the outer surface of the large-diameter packing 7 is deformed upward, for example, with the external fitting of the downstream pipe 5. Thus, the inner peripheral surface of the downstream pipe 5 and the outer surface of the large-diameter packing 7 are in close contact with each other, and the sealed state can be maintained. In this case, the remaining small-diameter packing 6 that is not used can be used in other piping construction sites.

1, 2, 3 Upstream piping 4, 5 Downstream piping 6 Small diameter packing 7 Large diameter packing

Claims (5)

A set of waterproof and deodorant packing used between the upstream piping for drainage connected to the drain outlet such as a sink and washbasin and the downstream piping connected to sewage,
A substantially cylindrical small-diameter packing in which a small-diameter or medium-diameter upstream pipe can alternatively be inserted in a sealed state, and a small-diameter downstream pipe can be externally fitted in a sealed state;
The large-diameter upstream pipe can be inserted in a sealed state, and the large-diameter downstream pipe can be fitted in a sealed state with a substantially cylindrical large-diameter packing,
Further, a waterproof / odor-proof packing set in which the small-diameter packing is fitted to and detached from the inside of the large-diameter packing so that they can be combined and separated. On the upper end edge of the cylindrical portion of the small-diameter packing and the large-diameter packing, an outward flange that contacts the upper end of each downstream pipe is formed,
The small-diameter packing and the large-diameter packing are configured so that the small-diameter packing can be inserted into the large-diameter packing so that the small-diameter packing and the large-diameter packing are combined.
The lower end portion of the small-diameter or medium-diameter upstream pipe is inserted into the small-diameter packing, and the small-diameter packing is inserted into the upper end portion of the small-diameter downstream pipe and the flange at the upper end of the small-diameter downstream pipe. Is fitted in a state of contact, and
The lower end of the large-diameter upstream pipe is inserted into the large-diameter packing, and the large-diameter packing is inside the upper end of the large-diameter downstream pipe and at the upper end of the large-diameter downstream pipe. The waterproof / odor-proof packing set according to claim 1, wherein the gasket is configured to be fitted with the flange in contact with the flange.   An inner protrusion is formed on the inner peripheral surface of the small-diameter packing so that the small-diameter or medium-diameter upstream pipe can be in close contact with it, and the small-diameter downstream pipe can be in close contact with the outer peripheral surface, and the large-diameter packing when combined An outer protrusion that can be in close contact with the inner surface of the large-diameter packing, and an inner protrusion that can be in close contact with the large-diameter upstream pipe and the small-diameter packing when combined. The waterproof / deodorant packing set according to claim 1, wherein an outer protrusion is formed so as to protrude and an outer protrusion on which the large-diameter downstream pipe can be in close contact with the outer peripheral surface.   A small-diameter packing and / or a large-diameter packing according to any one of claims 1 to 3 according to a diameter of the upstream pipe and the downstream pipe. how to use. The small-diameter packing and / or the large-diameter packing according to any one of claims 1 to 3 is installed between the upstream pipe and the downstream pipe in accordance with the diameters of the upstream pipe and the downstream pipe. Piping connection structure.

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