JP2016136042A - Pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe joint capable of being miniaturized.SOLUTION: A pipe joint 1 includes: a cylindrical trunk 20; a socket 30 which is arranged coaxially with the trunk 20, which is connected to an end 20A of the trunk 20 and which has a diameter longer than a diameter of the trunk 20; and a protrusion 40 which is protruded in a radial direction of the trunk 20 from an outer peripheral surface 20B of the trunk 20 and which has an opening 43 formed at an end 42. At least a part of the end 42 of the protrusion 40 is positioned inside in the radial direction with respect to an outer peripheral surface 30A of the socket 30.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a pipe joint for connecting pipes.

  Conventionally, a pipe joint for connecting pipes used for drainage or the like is known. The pipe joint described in Patent Document 1 as an example is a cylindrical body, a receiving port that is coaxially arranged with the body, is connected to the end of the body, and has a diameter longer than the diameter of the body. And a protruding portion that protrudes in the radial direction of the body portion from the outer peripheral surface of the body portion and has a cleaning port formed at the end portion. The end portion of the projecting portion is positioned outward in the radial direction of the trunk portion from the outer peripheral surface of the receiving port.

JP 2006-2813 A

  In order to further reduce the piping space of the pipe, it is preferable that the pipe joint is smaller. The inventor of the present application examined the pipe joint described in Patent Document 1, and thought that there was still room for improvement in terms of downsizing.

  An object of the present invention is to provide a pipe joint that can be miniaturized.

  A pipe joint for achieving the above object is provided with a cylindrical body portion, a receiving shaft having a diameter longer than the diameter of the body portion, being arranged coaxially with the body portion, connected to an end portion of the body portion. And a protrusion projecting from the outer peripheral surface of the body portion in the radial direction of the body portion and having an opening formed at an end portion thereof, at least a part of the end portion of the protrusion portion and the outer periphery of the receiving port The surface is at the same position in the radial direction, or at least a part of the end of the protruding portion is positioned inward in the radial direction with respect to the outer peripheral surface of the receiving port.

According to the main pipe joint, since at least a part of the end of the projecting part is disposed at the above position, the radial dimension of the pipe joint can be reduced. For this reason, size reduction of a pipe joint is achieved.
The pipe joint for achieving the above object further includes a lid that can be attached to and detached from the opening of the protruding portion, and at least one of the surfaces of the lid when the lid is attached to the opening. And the outer peripheral surface of the receiving port are at the same position in the radial direction, or at least a part of the surface of the lid is positioned inward in the radial direction with respect to the outer peripheral surface of the receiving port.

According to the main pipe joint, since at least a part of the surface of the lid is arranged at the above position, the radial dimension of the pipe joint including the lid can be reduced. For this reason, size reduction of a pipe joint is achieved.
In the pipe joint for achieving the above object, the lid includes a concave portion formed on a front surface of the lid, and a handle disposed in the concave portion.

  According to the main pipe joint, since the lid includes the handle, the user can easily remove the lid from the opening. Moreover, since the handle is arrange | positioned at the recessed part, compared with the case where the handle protrudes from the surface of a lid | cover, the dimension of the radial direction of the pipe joint including a lid | cover can be made smaller. For this reason, size reduction of a pipe joint is achieved more.

  A pipe joint for achieving the above object is provided with a cylindrical body portion, a receiving shaft having a diameter longer than the diameter of the body portion, being arranged coaxially with the body portion, connected to an end portion of the body portion. A mouth, a projecting portion projecting from the outer peripheral surface of the body portion in the radial direction of the body portion, and having an opening formed at an end portion thereof, and a mouthpiece covering layer formed on the surface of the mouthpiece, At least a part of the end of the protrusion and the surface of the receiving cover layer are at the same position in the radial direction, or at least a part of the end of the protrusion is more than the surface of the receiving cover layer It is located inward in the radial direction.

  For example, a coating layer such as a fireproof layer, a sound deadening layer, a sound insulating layer, or a sound absorbing layer may be formed on the surface of the pipe joint. According to the main pipe joint, since at least a part of the end of the protruding part is disposed at the above position, the radial dimension of the pipe joint including the coating layer can be reduced. For this reason, size reduction of a pipe joint is achieved.

  The pipe joint for achieving the above object further includes a lid that can be attached to and detached from the opening of the protruding portion, and at least one of the surfaces of the lid when the lid is attached to the opening. And the surface of the receiving cover layer are at the same position in the radial direction, or at least a part of the surface of the lid is positioned inward of the radial direction from the surface of the receiving cover layer Yes.

  According to the main pipe joint, since at least a part of the surface of the lid is disposed at the above position, the radial dimension of the pipe joint including the lid and the covering layer can be reduced. For this reason, size reduction of a pipe joint is achieved.

  In the pipe joint for achieving the above object, in the state where the lid is attached to the opening, at least a part of the surface of the lid is inward in the radial direction from the surface of the receiving cover layer. A lid coating layer is formed on a portion of the surface of the lid that is located inward in the radial direction with respect to the surface of the receptacle coating layer.

  According to the main pipe joint, since the lid coating layer is formed on the portion of the lid surface that is located radially inward from the surface of the receiving sheath coating layer, the lid coating layer in the radial direction is formed. At least a portion is located inward of the receiving cover layer. For this reason, for example, even if a foreign substance that has dropped from above and the lid covering layer come into contact with each other, even if a force acts on the lid covering layer from above, the lid covering layer is unlikely to peel off from the surface of the lid.

  According to the main pipe joint, size reduction can be achieved.

The front view of the pipe joint of a 1st embodiment. The side view of the coupling main body of FIG. Sectional drawing which follows the D3-D3 line | wire of the state where the lid | cover of FIG. 1 was removed. The top view of the coupling main body of FIG. The perspective view of the lid | cover of FIG. The top view of the lid | cover of FIG. The rear view of the lid | cover of FIG. Sectional drawing which follows the D8-D8 line | wire of FIG. Sectional drawing which follows the D3-D3 line | wire of FIG. Sectional drawing of the pipe joint of 2nd Embodiment.

(First embodiment)
With reference to FIG. 1, the structure of the pipe joint 1 of 1st Embodiment is demonstrated.
The pipe joint 1 includes, for example, a joint body 10 that connects a drain pipe 100 that is piped to an apartment house such as an apartment, and a lid 60 that is attached to the joint body 10. An example of the material constituting the joint body 10 and the lid 60 is a synthetic resin such as hard polyvinyl chloride.

With reference to FIGS. 2-4, the structure of the coupling main body 10 is demonstrated.
As shown in FIG. 2, the joint body 10 includes a cylindrical body 20, a pair of receiving ports 30 that are arranged on the same axis XA as the body 20, and are connected to the end 20 </ b> A of the body 20, and A protruding portion 40 protruding in the radial direction of the trunk portion 20 from the outer peripheral surface 20B of the trunk portion 20 is provided.

The body portion 20 is formed integrally with the receiving port 30 and the protruding portion 40. The upper surface 21 and the lower surface 22 of the trunk | drum 20 are adhere | attached with the drainage pipe 100 (refer FIG. 1), for example with an adhesive agent.
The pair of receiving ports 30 have a diameter that is longer than the diameter of the body portion 20.

  As shown in FIG. 3, one end 41 of the protrusion 40 is connected to the outer peripheral surface 20 </ b> B of the body 20, and the other end 42, which is the end opposite to the one end 41, An opening 43 is formed.

  As shown in FIGS. 3 and 4, the protruding portion 40 includes a lowest portion 44 that is a portion having the shortest protruding portion dimension LA, which is a distance between the outer peripheral surface 20 </ b> B of the trunk portion 20 and the end surface of the opening 43. The protruding portion dimension LA of the lowest portion 44 is shorter than the radius difference RC that is the difference between the outer periphery radius RA of the receiving port 30 and the outer periphery radius RB of the trunk portion 20. For this reason, the opening 43 is positioned inward in the radial direction of the trunk 20 from the outer peripheral surface 30 </ b> A of the receiving port 30.

The configuration of the lid 60 will be described with reference to FIGS.
As shown in FIG. 5, the lid 60 includes a circular surface portion 70 and a portion 80 to be inserted that is inserted into the opening 43 (see FIG. 2) of the protrusion 40.

  The surface portion 70 is exposed from the opening 43 while being attached to the opening 43. The surface portion 70 is formed integrally with the inserted portion 80. A concave portion 71 that is recessed toward the insertion portion 80 is formed on the surface 70 </ b> A of the surface portion 70.

A pair of handles 72 held by the user are arranged inside the recess 71. The pair of handles 72 extends in the radial direction of the surface portion 70.
As shown in FIG. 6, an O-ring 50 is attached to the end of the inserted portion 80. The edge of the inserted portion 80 includes a curved portion 80 </ b> A that is recessed toward the surface portion 70. The shape of the curved portion 80A is substantially the same as the shape of the arc on the inner surface of the trunk portion 20 (see FIG. 3). For this reason, when the lid 60 is attached to the opening 43 of the joint body 10, the curved portion 80 </ b> A is flush with the inner surface of the body 20 in the plan view of the pipe joint 1.

  As shown in FIGS. 6 and 7, four protrusions 81 to 84 are formed on the outer peripheral surface of the inserted portion 80 as an example. A taper 85 is formed at one end of the four protrusions 81 to 84. The lid 60 closes the opening 43 by fitting the four protrusions 81 to 84 into the groove 45 (see FIG. 3) formed in the opening 43.

As shown in FIG. 7, the distance between the protrusion 81 and the protrusion 82 and the distance between the protrusion 83 and the protrusion 84 in the circumferential direction of the inserted portion 80 are distances YA.
In the circumferential direction of the inserted portion 80, the distance between the protrusion 82 and the protrusion 83 and the distance between the protrusion 84 and the protrusion 81 are distance YB. The distance YA is longer than the distance YB.

The positional relationship between the protrusions 81 to 84 and the groove 45 will be described with reference to FIG. In FIG. 8, only the protrusions 81 to 84 are illustrated for the lid 60 for convenience of explanation.
The groove 45 formed in the opening 43 includes a groove 45A into which the protrusion 81 is inserted, a groove 45B into which the protrusion 82 is inserted, a groove 45C into which the protrusion 83 is inserted, and a groove 45D into which the protrusion 84 is inserted. . The four grooves 45 </ b> A to 45 </ b> D are formed along the circumferential direction of the opening 43.

  In the circumferential direction of the opening 43, the distance between the groove 45A and the groove 45B and the distance between the groove 45C and the groove 45D are distances YA. In the circumferential direction of the opening 43, the distance between the groove 45B and the groove 45C and the distance between the groove 45D and the groove 45A are the distance YB.

With reference to FIG. 9, the dimension LB at the time of closing of the pipe joint 1 is demonstrated.
The closed dimension LB is a dimension obtained by combining the protrusion part dimension LA of the lowest part 44 and the thickness of the cover 60 when the cover 60 is attached to the opening 43. The closed dimension LB is equal to the radius difference RC (see FIG. 3). For this reason, the surface 70 </ b> A of the lid 60 and the outer peripheral surface 30 </ b> A of the receiving port 30 are at the same position in the radial direction of the pipe joint 1.

With reference to FIG. 9, the effect | action and effect of the pipe joint 1 are demonstrated.
In the pipe joint 1, the drainage pipes 100 are respectively inserted from the pair of receiving ports 30, and the end part of the drainage pipe 100 and the upper surface 21 or the lower surface 22 of the trunk portion 20 are bonded by, for example, an adhesive. Further, the surface on the end side of the drain pipe 100 and the inner surface of the receiving port 30 are bonded by, for example, an adhesive. Thereby, the pipe joint 1 connects the two drain pipes 100. The pipe joint 1 is reduced in size because the lowest portion 44 of the protruding portion 40 is positioned inward in the radial direction of the trunk portion 20 with respect to the outer peripheral surface 30 </ b> A of the receiving port 30. For this reason, it can contribute to space saving of the piping space of the drainage pipe 100.

  For example, when the user cleans the inside of the pipe joint 1, the user holds the handle 72 (see FIG. 5) of the lid 60 and rotates the lid 60 in one direction with respect to the opening 43 of the joint body 10. . Since the taper 85 (see FIG. 7) is formed on the protrusions 81 to 84 of the inserted portion 80 of the lid 60, the taper 85 moves along the grooves 45A to 45D (see FIG. 8) of the opening 43, The protrusions 81 to 84 move outward in the radial direction of the body portion 20. For this reason, the lid 60 moves outward in the radial direction of the body 20 while rotating in one direction with respect to the opening 43. For this reason, the amount of rotation of the lid 60 required when removing the lid 60 from the opening 43 is further reduced, and the user can easily remove the lid 60 from the joint body 10. Note that the user holds the handle 72, inserts the protrusions 81 to 84 of the inserted portion 80 into the grooves 45A to 45D (see FIG. 8) of the opening 43, and the lid 60 is in a direction opposite to one direction. The lid 60 is attached to the opening 43 by rotating in the other direction.

According to the pipe joint 1 of the present embodiment, the following effects can be further obtained.
(1) Since the surface 70A of the lid 60 and the outer peripheral surface 30A of the receiving port 30 are at the same position in the radial direction of the body portion 20, the surface 70A exists outside the body portion 20 in the radial direction. In comparison, the radial dimension of the pipe joint 1 including the lid 60 can be reduced. For this reason, size reduction of the pipe joint 1 including the cover 60 is achieved.

  (2) Since the lid 60 includes the handle 72, the user can easily remove the lid 60 from the opening 43. Moreover, since the handle 72 is arrange | positioned at the recessed part 71, the dimension of the radial direction of the pipe joint 1 including the cover 60 can be made smaller compared with the case where the handle 72 protrudes from the surface 70A. For this reason, size reduction of the pipe joint 1 is achieved more.

  (3) Since the distance YA and the distance YB are different, the lid 60 and the opening 43 are positioned in the circumferential direction. For this reason, it is difficult for the user to mistake the mounting direction of the lid 60 in the circumferential direction with respect to the opening 43.

(Second Embodiment)
With reference to FIG. 10, the structure of the pipe joint 1 of 2nd Embodiment is demonstrated centering on difference with the structure of the pipe joint 1 of 1st Embodiment. In FIG. 10, elements that are substantially the same as those in the first embodiment are denoted by the same reference numerals, and redundant descriptions are omitted.

  A refractory layer 200 is formed as an example of a coating layer on the surfaces of the joint body 10 and the lid 60 of the pipe joint 1. An example of the material constituting the refractory layer 200 is mortar in which sand, cement, and water are mixed. Note that the dots in FIG. 10 indicate the refractory layer 200.

  The refractory layer 200 includes a trunk portion refractory layer 210 formed on the surface of the trunk portion 20, a receptacle refractory layer 220 formed on the surface of the receptacle 30, and a lid refractory formed on the surface of the lid 60. Layer 230 is included.

  The end portion 42 of the lowest portion 44 of the projecting portion 40 is located inward in the radial direction of the trunk portion 20 with respect to the surface of the receiving fireproof layer 220. Further, the surface 70 </ b> A of the lid 60 is located inward of the trunk portion 20 in the radial direction with respect to the surface of the receiving fire-resistant layer 220.

According to the pipe joint 1 of the present embodiment, in addition to the effects (1) to (3), the following effects can be obtained.
(4) Since the end portion 42 of the lowest portion 44 of the projecting portion 40 is located inward in the radial direction of the trunk portion 20 with respect to the surface of the receiving fire-resistant layer 220, Dimensions are reduced. For this reason, size reduction of the pipe joint 1 including the fireproof layer 200 is achieved.

  (5) Since the surface 70A of the lid 60 is located inward of the trunk portion 20 in the radial direction with respect to the surface of the receiving fireproof layer 220, the radial direction of the pipe joint 1 including the lid 60 and the fireproof layer 200 The dimensions can be reduced. For this reason, size reduction of the pipe joint 1 is achieved.

  (6) The surface 70 </ b> A of the lid 60 is positioned inward of the trunk portion 20 in the radial direction with respect to the surface of the receiving port refractory layer 220, and the lid refractory layer 230 is formed on the surface 70 </ b> A. For this reason, a part of the lid refractory layer 230 is positioned inward of the receiving refractory layer 220 in the radial direction of the trunk portion 20. Thereby, for example, when the foreign substance that has dropped from above and the lid refractory layer 230 come into contact with each other, even if a force acts on the lid refractory layer 230 from above, the lid refractory layer 230 is unlikely to peel off from the surface 70A of the lid 60. .

(Modification)
In addition, you may change each said embodiment as follows. The following modifications can be combined with each other within a technically consistent range.

  -In at least one of 1st Embodiment and 2nd Embodiment, you may form all the edge parts 42 of the protrusion part 40, and 30 A of outer peripheral surfaces of the receiving port 30 in the same position in the radial direction of the trunk | drum 20. As shown in FIG. Or you may form all the edge parts 42 of the protrusion part 40 inside the radial direction of the trunk | drum 20 rather than 30 A of outer peripheral surfaces of the receiving port 30. FIG.

  In at least one of the first embodiment and the second embodiment, at least a part of the end portion 42 of the protruding portion 40 and the outer peripheral surface 30A of the receiving port 30 may be formed at the same position in the radial direction of the trunk portion 20. Good.

In the first embodiment, at least a part of the surface 70 </ b> A of the lid 60 may be located inward of the outer peripheral surface 30 </ b> A of the receiving port 30 in the radial direction of the trunk portion 20.
In at least one of the first embodiment and the second embodiment, the surface 70 </ b> A of the lid 60 corresponding to the lowest portion 44 is positioned outward in the radial direction of the body portion 20 from the outer peripheral surface 30 </ b> A of the receiving port 30. You may do it.

  In at least one of the first embodiment and the second embodiment, the concave portion 71 of the lid 60 can be omitted. According to the lid 60 of this modification, the handle 72 may be formed so as to protrude outward in the radial direction of the body portion 20 from the surface 70A.

-In at least one of 1st Embodiment and 2nd Embodiment, you may form the trunk | drum 20 and the protrusion part 40 separately.
In at least one of the first embodiment and the second embodiment, one of the pair of receiving ports 30 may be omitted.

In at least one of the first embodiment and the second embodiment, instead of the lid 60, a joint member that connects the drain pipe 100 to the trunk 20 may be attached to the opening 43.
-In 2nd Embodiment, you may form at least one part of the edge part 42 of the protrusion part 40, and the surface of the receiving end fireproof layer 220 in the same position in the radial direction of the trunk | drum 20. As shown in FIG.

-In at least one of 1st Embodiment and 2nd Embodiment, the cyclic | annular protrusion of the shape in alignment with the edge of the to-be-inserted part 80 can also be formed.
In the second embodiment, at least a part of the surface 70 </ b> A of the lid 60 and the surface of the receiving port refractory layer 220 may be formed at the same position in the radial direction of the trunk portion 20.

-In 2nd Embodiment, you may form the receptacle refractory layer 220 and the cover refractory layer 230 in the same position in the radial direction of the trunk | drum 20. As shown in FIG.
-In 2nd Embodiment, it replaces with the fireproof layer 200, and you may form a sound deadening layer, a sound insulation layer, or a sound absorption layer as a coating layer.

  DESCRIPTION OF SYMBOLS 1 ... Pipe joint, 20 ... Body part, 20A ... End part, 20B ... Outer peripheral surface, 30 ... Receptacle, 30A ... Outer peripheral surface, 40 ... Projection part, 42 ... End part, 43 ... Opening part, 60 ... Cover, 70A ... Surface, 71 ... Recess, 72 ... Handle, 200 ... Fire-resistant layer (covering layer), 220 ... Opening fire-resistant layer (receiving-portion covering layer), 230 ... Lid fire-resistant layer (lid covering layer).

Claims (6)

A cylindrical body,
A receiving port that is arranged coaxially with the body part, is connected to an end part of the body part, and has a diameter longer than the diameter of the body part;
Projecting in the radial direction of the body part from the outer peripheral surface of the body part, provided with a projecting part in which an opening is formed at the end,
At least a part of the end of the protruding part and the outer peripheral surface of the receiving port are at the same position in the radial direction, or at least a part of the end of the protruding part is more than the outer peripheral surface of the receiving port. Pipe fitting located radially inward. A lid detachable from the opening of the protrusion;
In a state where the lid is attached to the opening, at least a part of the surface of the lid and the outer peripheral surface of the receiving port are in the same position in the radial direction, or at least a part of the surface of the lid is The pipe joint according to claim 1, wherein the pipe joint is located inward in the radial direction from the outer peripheral surface of the receiving port. The pipe joint according to claim 2, wherein the lid includes a recess formed in a front surface of the lid and a handle disposed in the recess. A cylindrical body,
A receiving port that is arranged coaxially with the body part, is connected to an end part of the body part, and has a diameter longer than the diameter of the body part;
A protruding portion that protrudes in the radial direction of the body portion from the outer peripheral surface of the body portion, and an opening is formed at the end; and
A receiving coating layer formed on the surface of the receiving port,
At least a part of the end of the protrusion and the surface of the receiving cover layer are at the same position in the radial direction, or at least a part of the end of the protrusion is from the surface of the receiving cover layer Is also located inward in the radial direction. A lid detachable from the opening of the protrusion;
In a state where the lid is attached to the opening, at least a part of the surface of the lid and the surface of the receiving cover layer are at the same position in the radial direction, or at least a part of the surface of the lid The pipe joint according to claim 4, wherein is positioned inward in the radial direction from the surface of the receiving cover layer. In a state where the lid is attached to the opening, at least a part of the surface of the lid is located on the inner side in the radial direction than the surface of the receiving cover layer,
The pipe joint according to claim 5, wherein a lid covering layer is formed in a portion of the surface of the lid that is positioned inward in the radial direction with respect to the surface of the receptacle covering layer.