JP6855014B2 - Drainage pipe connection device - Google Patents

Description

The present invention relates to a drain pipe connecting device that connects a drain port of a bowl portion and a drain pipe located on the downstream side of the drain port.

Conventionally, as in Patent Document 1, the inner peripheral surface of the drainage port and the tip surface of the flange member are brought into contact with each other to eliminate the gap, and drainage is performed by a fastening nut screwed into the flange member from below the drainage port. A drainage pipe connecting device for connecting a flange member to a mouth is known. As a result, it is possible to suppress the generation of foul odors and darkening due to water stains and dust accumulated in the gaps.
However, in the case of this drain pipe connecting device, the position where the tip surface of the flange member comes into contact with the tip surface of the drain port changes due to the dimensional error of the inner diameter of the drain port, and the mounting position of the flange member with respect to the drain port moves up and down. .. When the mounting position of the flange member moves up and down, the mounting position of the drain pipe connected to the flange member from below also changes up and down, and there is a problem that the size of the area below the drain pipe increases or decreases for each product. .. For example, in the case of a vanity with a cabinet below the bowl, the drainage pipe is installed in the cabinet, so if the size of the area below the drainage pipe increases or decreases for each product, the article storage area There is a problem that the size of the is increased or decreased. Further, for example, in the case of a remote-operated drain plug device in which a wire is connected below the drain plug and the drain plug is driven up and down by driving the wire by operating the operation unit, the mounting position of the drain pipe is also set. By changing up and down, the wire fixing part installed inside the drainage pipe also moves up and down, and the drainage plug cannot move up and down well, and there is a problem that the opening and closing of the drainage port by the drainage plug occurs.

In order to solve this problem, the connecting member is connected to the fastening nut that fastens the flange member to the drainage port at the position where it is screwed into the flange member from below the drainage port and abuts on the lower end of the drainage port. A drainage pipe connecting device that indirectly connects the drainage pipe and the flange member can be considered. In the case of this drain pipe connecting device, the fastening nut always comes to the position where it comes into contact with the lower surface of the drain port when the flange member is attached to the drain port, so that the drain pipe can be moved even if the fixed mounting position of the flange member moves up and down. The drainage pipe does not move up and down, and the mounting position of the drainage pipe in the vertical direction is always constant.

Further, in Patent Document 2, a guide groove is provided on one of the outer peripheral surface of the fastening nut and the inner peripheral surface of the connecting member, and a protrusion is provided on the other, and the protrusion is inserted into the introduction guide portion of the guide groove to insert the guide groove. A drainage pipe connecting device for attaching a drainage pipe to a flange member by moving the drainage pipe to the lock position of the above is disclosed.
In such a drainage pipe connecting device, the fastening nut and the connecting member can be easily connected without using a screw connection, and even if the drainage pipe is located in a position where it is difficult to see at hand, the drainage pipe can be attached and installed. It can be easily removed.

Japanese Unexamined Patent Publication No. 2012-11229 Japanese Unexamined Patent Publication No. 2013-1448998

However, in the case of the drain pipe connecting device in which the drain pipe connecting device of the solution of Patent Document 1 described above is combined with the drain pipe connecting device of Patent Document 2, the connecting member is in a state where the drain pipe is connected to the flange member. When an unexpected force in the circumferential direction is applied, the fastening nut may rotate at the same time as the connecting member rotates due to the force in the circumferential direction, and there is a problem that the fixing of the flange member is loosened.

The present invention is for solving the above-mentioned problems, and an object of the present invention is that the drain pipe can be easily attached and detached, and when an unexpected circumferential force is applied to the connecting member, the flange is used. It is an object of the present invention to provide a drainage pipe connecting device in which a fastening nut fixing a member is not loosened.

In order to achieve the above object, the drainage pipe connecting device according to the first aspect of the present invention is a drainage pipe that connects a drainage port formed on the bottom surface of the bowl portion and a drainage pipe located on the downstream side of the drainage port. A connecting device at a position where a flange member inserted from above the drainage port and connected to the drainage port is screwed into the flange member from below the drainage port and abuts on the lower end of the drainage port. A fastening nut that fastens the flange member to the drain port, and a connecting member that is connected to the outer peripheral surface of the fastening nut and indirectly connects the flange member and the drain pipe are provided. A protrusion is formed on either one of the inner peripheral surface and the outer peripheral surface of the fastening nut, and a guide groove for receiving the protrusion is formed on the other, and the guide groove is a lock position of the protrusion. A lock located between the horizontal guide portion, the introduction guide portion that receives the protrusion portion and guides the protrusion portion to the horizontal guide portion, and the horizontal guide portion and the introduction guide portion, and restrains the protrusion portion to the horizontal guide portion. The horizontal guide portion is provided around the entire circumference of any one of the inner peripheral surface of the connecting member and the outer peripheral surface of the fastening nut.

According to the drainage pipe connecting device of the present invention according to claim 1, the protruding portion is inserted into the introduction guide portion and guided to the horizontal guide portion which is a locked position along the introduction guide portion. Then, the protrusion is restrained by the lock portion in the horizontal guide portion. In this way, the connecting member is connected to the outer peripheral surface of the fastening nut by the protrusion and the guide groove to indirectly connect the flange member and the drain pipe, so that the connecting member is connected to the fastening nut like a screw connection. , It is not necessary to rotate the connecting member many times, and the connecting member can be easily connected to the fastening nut as compared with the screw connection, and the drain pipe can be easily attached.
Further, since the horizontal guide portion of the guide groove is provided around the entire circumference of any one of the inner peripheral surface of the connecting member and the outer peripheral surface of the fastening nut, the protruding portion is restrained by the horizontal guide portion by the lock portion. Even if an unexpected circumferential force is applied to the connecting member while the connecting member is in use, the connecting member moves along the horizontal guide portion without being hindered by the locking portion from moving in the horizontal direction. It can rotate in the circumferential direction. Therefore, when an unexpected force is applied to the connecting member in the circumferential direction, the screw connection between the flange member and the fastening nut is less likely to loosen.

In the drainage pipe connecting device of the invention according to claim 2, the connecting member is provided with the protrusion, the fastening nut is provided with the guide groove, and the connecting member presses the connecting member. Therefore, the restraint of the protrusion by the lock portion can be released, and the protrusion can be moved from the horizontal guide portion to the introduction guide portion.

According to the drainage pipe connecting device of the invention according to claim 2, when the connecting member is removed, the restraint of the protruding portion by the lock portion can be released by a simple operation of pressing, and the protruding portion can be guided horizontally. Since it can be moved from the portion to the introduction guide portion, it is easy to disconnect the connecting member from the fastening nut, and the drain pipe can be easily removed.

In the drainage pipe connecting device of the present invention according to claim 3, a connecting member side display portion serving as a mark for pressing is provided on the outer periphery of the connecting member at a position approximately 90 degrees from the protruding portion. It is characterized by.

According to the drainage pipe connecting device of the invention according to claim 3, the position suitable for the pressing position for moving the protruding portion from the horizontal guide portion to the introduction guide portion can be found at a glance, and the connecting member can be disconnected from the fastening nut. It is easy to do and the drain pipe is easy to remove.

In the drainage pipe connecting device according to the fourth aspect of the present invention, the fastening nut has the protrusion provided on the connecting member, the horizontal guide portion in the guide groove provided on the fastening nut, and the introduction guide. It is characterized in that a fastening nut side display portion is provided for recognizing that the portion is located at the boundary with the portion.

According to the drainage pipe connecting device of the invention according to claim 4, since the fastening nut side display portion is provided, when the connection between the connecting member and the fastening nut is released, the fastening nut side display portion is used to connect the connecting member. Since it is easy to arrange the protruding portion of the above at a position suitable for moving from the horizontal guide portion to the introduction guide portion, it is easier to disconnect the connecting member and to remove the drain pipe.

According to the present invention, there is provided a drainage pipe connecting device in which the drainage pipe can be easily attached and detached, and the fastening nut fixing the flange member does not loosen even when an unexpected force is applied in the circumferential direction. Can be done.

It is a front view of the wash basin provided with the wash basin in embodiment of this invention. It is a side sectional view which shows the vanity of FIG. It is an enlarged view which shows the vicinity of the drainage port in FIG. It is a perspective view which shows the detail of a fastening nut and a connecting member.

FIG. 1 is a front view of a vanity with a washbasin according to an embodiment of the present invention. FIG. 2 is a side sectional view showing the vanity of FIG. 1. FIG. 3 is an enlarged view showing the vicinity of the drainage port in FIG. FIG. 4 is an enlarged view showing the vicinity of the flange member in FIG.

The drainage pipe connecting device of the present invention is used in the wash basin 100.
As shown in FIGS. 1 and 2, the wash basin 100 according to the present embodiment is attached to the wash basin 1.
The wash basin 1 includes a wash basin 100 provided above the cabinet 200 and a makeup mirror 300 provided above the wash basin 100.

In the specification of the present application, the descriptions "upper", "lower", "right" and "left" are based on the person who saw the vanity 1 in front of the vanity 1 and below. , Right and left respectively. Further, in the specification of the present application, the direction from the vanity 1 toward the person in front of the vanity 1 is defined as the "forward" direction, and the opposite direction is defined as the "rear" direction.

The wash basin 100 has a bowl portion 110, a faucet device 120 for discharging water to the bowl portion 110, and a drain port 130 formed on the bottom surface 111 of the bowl portion 110.
The bottom surface 111 of the bowl portion 110 is formed with a drainage gradient inclined downward toward the drainage port 130.
Further, since the bottom surface 111 of the bowl portion 110 and the drain port 130 are integrally molded, there is no step and dirt is less likely to accumulate.

A drain plug 140 is provided above the drain port 130. The drain plug 140 is permanently installed in the drain port 130, and the drain port 130 can be opened and closed by moving up and down in the vertical direction.

The faucet device 120 is provided behind the upper surface of the bowl portion 110.
The faucet device 120 has a water discharge unit 121 and an operation lever 122. The water discharge unit 121 discharges the washing water to the bowl unit 110. Specifically, the faucet device 120 is connected to the water supply source via an on-off valve (not shown). The wash water is discharged from the water discharge unit 121 to the bowl unit 110 when the on-off valve is opened by the manual operation of the operation lever 122, which is the operation unit of the faucet device 120.

As shown in FIG. 3, the drain port 130 is formed in a tubular shape in which a part of the bottom surface 111 of the bowl portion 110 is recessed downward.
The inner peripheral surface 131 of the drain port 130 is formed so as to be smoothly inclined from the upper side to the lower side and gradually squeezed. That is, the radius of the lower end of the inner peripheral surface 131 is narrower than that of the upper end of the inner peripheral surface 131.

A tubular flange member 150 is fixed to the drain port 130 by a nut-shaped fastening nut 160. A drainage pipe 170 is attached to the lower part of the flange member 150.
The drainage pipe 170 does not have to be a "drainage pipe" provided in the building frame, but may be, for example, a "tailpiece" or a "drainage trap" provided on the downstream side of the drainage port.
Water is stopped between the flange member 150 and the drain pipe 170 by an annular packing 171.
A connecting member 180 fixed by a mounting ring 172 is attached to the outer peripheral surface of the drainage pipe 170 so as to be rotatable in the circumferential direction.
The flange member 150 and the drain pipe 170 are attached by connecting the connecting member 180 to the fastening nut 160. That is, the connecting member 180 indirectly connects the flange member 150 and the drain pipe 170 and defines the mounting position with respect to the drain port 130. The mounting position is a position in the vertical direction with respect to the drain port 130.

The flange member 150 has a flange portion 151 formed so as to expand in the radial direction from the upper portion thereof, and a groove 152 recessed inward in the radial direction from the tip surface 151a of the flange portion 151. The tip surface 151a refers to, for example, an outer peripheral surface of the flange portion 151 that abuts on the inner peripheral surface of the drain port 130.

An O-ring 153 is attached to the groove 152 as an annular packing for stopping water between the drain port 130 and the flange member 150.
In the present embodiment, an O-ring having a circular cross section is used as the annular packing, but the present invention is not limited to this, and other cross-sectional shapes such as an X ring may be used.

The flange member 150 is inserted from above the drain port 130 and fixed to the drain port 130.
In the state of being fixed to the drain port 130, the tip surface 151a of the flange portion 151 of the flange member 150 is in contact with the inner peripheral surface 131 of the drain port 130.
Further, a thread groove is provided on the outer peripheral surface 150a of the flange member 150 below the flange portion 151 for screwing with the fastening nut 160.

The fastening nut 160 is a cylindrical nut and fixes the vertical position of the flange member 150. The inner peripheral surface of the fastening nut 160 is threaded and screwed with a screw groove formed on the peripheral surface of the flange member 150. Further, the fastening nut 160 is screwed to the flange member 150 up to a position where it comes into contact with the lower surface 132 of the drain port 130.
At this time, a slip washer (not shown) is provided between the drain port 130 and the fastening nut 160.
A guide groove 161 is provided on the outer peripheral surface of the fastening nut 160.
When the connecting member 180 is connected to the fastening nut 160, the protrusion 181 provided on the inner peripheral surface of the connecting member 180 is inserted into the guide groove 161 and restrained. Details will be described later.

Inside the drain pipe 170, a drain plug operation unit 173 for moving the drain plug 140 up and down is provided.
The drain plug operation unit 173 is connected to an operation button (not shown) via a wire (not shown), and when the user presses the operation button, the drain plug operation unit 173 moves up and down in conjunction with the operation button to move the drain plug 140 up and down.

The attachment position of the drain pipe 170 to the flange member 150 is determined by connecting the fastening nut 160 and the connecting member 180, which are always attached to the drain port 130 at the same position. Therefore, even if the mounting position of the flange member 150 on the inner peripheral surface 131 is changed, the drain pipe 170 can always be mounted at the same mounting position. Therefore, it does not press the area below the drain pipe 170.
Further, since the drain pipe 170 can always be mounted at the same mounting position, the drain plug operation unit 173 installed inside the drain pipe 170 does not move up and down, and the drain plug 140 can smoothly open and close the drain port 130. ..

Next, the details of the fastening nut and the connecting member will be described with reference to FIG.
FIG. 4 is a perspective view showing details of the fastening nut and the connecting member.

The fastening nut 160 has a guide groove 161 into which a protrusion 181 formed on the inner peripheral surface of the connecting member 180 can be inserted.
The guide groove 161 has a horizontal guide portion 161a which is a lock position of the protrusion 181 and an introduction guide portion 161b which receives the protrusion 181 and guides the received protrusion 181 to the horizontal guide portion 161a along the groove. It has a lock portion that restrains the 181 to the horizontal guide portion 161a.
In the present embodiment, the lock portion is composed of a step portion 161c that partially shallows the bottom surface of the guide groove 161.
The horizontal guide portion 161a is formed in a guide groove 161 deeper than the step portion 161c, and is provided around the entire outer peripheral surface of the fastening nut 160 so that the protrusion 181 can move in the circumferential direction.
The introduction guide portion 161b is formed between the open end of the guide groove 161 and the open end of the guide groove 161 to the step portion 161c, and guides the protrusion 181 received in the guide groove 161 diagonally upward.
In other words, the step portion 161c is located at the boundary between the horizontal guide portion 161a and the introduction guide portion 161b.
In one embodiment of the present invention, the introduction guide portion 161b guides the received protrusion 181 diagonally upward, but does not guide the received protrusion 181 diagonally upward, but guides the protrusion 181 received in the guide groove 161 diagonally upward. Anything may be formed so as to guide the horizontal guide portion 161a along the above.

Further, on the outer peripheral surface of the fastening nut 160, a step portion position display portion 161d (fastening nut side display portion) is provided above the step portion 161c.
The step portion position display unit 161d is provided on the outer peripheral surface of the fastening nut 160 above the guide groove 161. Even when the connecting member 180 is attached, the step portion position display unit 161d is not hidden by the connecting member 180 and is horizontal. The position of the step portion 161c, which is the boundary between the guide portion 161a and the introduction guide portion 161b, can be known.

The connecting member 180 is formed of a flexible resin material, and its outer shape is elastically deformed by pressing. The connection between the connecting member 180 and the fastening nut 160 is released by utilizing this elastic deformation. Details of the method for disconnecting the connecting member 180 will be described later.
A pressing display unit 182 is provided on the outer peripheral surface of the connecting member 180 at a position approximately 90 degrees from the protrusion 181. In addition, about 90 degrees means an angle of 80 degrees to 100 degrees.
Further, the connecting member 180 is provided with a protrusion position display portion 183 on the outer peripheral surface of the position where the protrusion 181 is provided.
Therefore, the user can know the position of the protrusion 181 by looking at the protrusion position display portion 183 without looking at the protrusion 181 provided on the inner peripheral surface of the connecting member 180.

When connecting the connecting member 180 to the fastening nut 160, the protrusion 181 is inserted into the introduction guide portion 161b and moved diagonally upward along the introduction guide portion 161b. Then, in front of the step portion 161c, a force is applied to the connecting member 180 so that the apex of the protrusion 181 gets over the step portion 161c, the protrusion 181 gets over the step portion 161c, and the horizontal guide portion 161a gets over the protrusion 181. To reach. In this way, the connecting member 180 is connected to the outer peripheral surface of the fastening nut 160.
By connecting the connecting member 180 and the fastening nut 160, the flange member 150 and the drain pipe 170 are indirectly connected, and the drain pipe 170 is attached to the flange member.

Further, when the connection between the connecting member 180 and the fastening nut 160 is released, the connecting member 180 is rotated to align the left and right positions of the step portion position display portion 161d and the protrusion position display portion 183. At this time, the protrusion 181 moves in the circumferential direction along the groove of the horizontal guide portion and is located above the step portion 161c. Then, the connecting member 180 is moved downward while pressing the pressing display unit 182 of the connecting member 180. That is, by moving the connecting member 180 downward while elastically deforming it, the protruding portion 181 gets over the step portion 161c and is moved from the horizontal guide portion 161a, which is the lock position, to the introduction guide portion 161b. Further, the protrusion 181 of the connecting member 180 is moved along the introduction guide portion 161b while rotating diagonally downward to release the connection between the connecting member 180 and the fastening nut 160. When the connection between the connecting member 180 and the fastening nut 160 is released, the drain pipe 170 is removed from the flange member.

In this way, by connecting the connecting member 180 to the outer peripheral surface of the fastening nut 160 by using the protrusion 181 and the guide groove 161, the flange member 150 and the drain pipe 170 are indirectly connected, and the drain pipe 170 is connected. Since it is attached to the flange member 150, it is not necessary to rotate the connecting member 180 many times in the circumferential direction, and the connecting member 180 can be easily connected to the fastening nut 160 as compared with the screw connection, and the drain pipe 170 can be attached. It will be easier.

Further, when the connecting member 180 is connected to the fastening nut 160, the position of the protrusion 181 can be confirmed at a glance by providing the protrusion position display portion 183, and the protrusion 181 is introduced as an introduction guide. Since it can be easily inserted into the entrance of the portion 161b, the connection can be made more easily.

When the connecting member 180 is connected to the fastening nut 160, the protruding portion 181 is restrained by the horizontal guide portion 161a provided around the entire outer peripheral surface of the fastening nut 160, so that the protruding portion 181 is locked. The horizontal guide portion 161a, which is the position, is restricted from moving in the vertical direction, but can move in the circumferential direction along the groove of the horizontal guide portion 161a. Therefore, in the horizontal guide portion 161a, when an unexpected force is applied to the connecting member 180 in the circumferential direction, the connecting member 180 rotates in the circumferential direction, so that the fastening nut 160 rotates as the connecting member 180 rotates. It is difficult to rotate in the direction, and the screw connection between the flange member 150 and the fastening nut 160 is difficult to loosen.

When disconnecting the connecting member 180 from the fastening nut 160, the step portion position display portion 161d is provided so that the position of the step portion 161c hidden by the connecting member 180 can be known at a glance, so that the step portion position display is displayed. The protrusion position display portion 183 can be aligned with the portion 161d, and the protrusion 181 can be easily moved from the horizontal guide portion 161a to the introduction guide portion 161b.
That is, when disconnecting the connecting member 180, the connecting member 180 is appropriately rotated without rotating the connecting member 180 more than necessary to search for the step portion 161c which is the boundary between the horizontal guide portion 161a and the introduction guide portion 161b. Can be quickly rotated to any position.
Therefore, the connection of the connecting member 180 can be easily disconnected, and the drain pipe 170 can be easily removed.
Further, since the pressing display portion 182 is provided at a position approximately 90 degrees from the protruding portion, a position suitable for the user to press in order to move the protruding portion 181 from the horizontal guide portion 161a to the introduction guide portion 161b. At a glance, the connection member 180 can be easily disconnected, and the drain pipe 170 can be easily removed.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions, and for example, a guide groove may be provided on the inner peripheral surface of the connecting member, and a protrusion may be provided on the outer peripheral surface of the fastening nut. Further, for example, in the case of a "tail piece" or "drain trap" provided on the downstream side of the drain port, the drain pipe may be integrally formed with the drain pipe and the connecting member, and may be formed integrally with the drain pipe in an unexpected circumferential direction. When a force is applied, the drainage pipe and the connecting member may be integrated and idle.

1 ... Vanity 100 ... Washbasin 110 ... Bowl 111 ... Bottom surface 120 ... Water faucet device 121 ... Water spout 122 ... Operation lever 130 ... Drain port 131 ... Inner peripheral surface 132 ... Bottom surface 140 ... Drain plug 150 ... Flange member 151 ... Flange part 151a ... Tip surface 152 ... Groove 153 ... O-ring 160 ... Fastening nut 161 ... Guide groove 161a ... Horizontal guide part 161b ... Introduction guide part 161c ... Step part 161d ... Step part position display part 170 ... Drainage pipe 171 ... Circular Packing 172 ... Mounting ring 173 ... Drain plug operation unit 180 ... Connecting member 181 ... Projection 182 ... Pressing display unit 183 ... Projection position display unit 200 ... Cabinet 300 ... Cosmetic mirror

Claims (4)

A drainage pipe connecting device that connects a drainage port formed on the bottom surface of the bowl portion and a drainage pipe located on the downstream side of the drainage port.
A flange member inserted from above the drainage port and connected to the drainage port,
A fastening nut that fastens the flange member to the drainage port at a position where it is screwed into the flange member from below the drainage port and abuts on the lower end of the drainage port.
A connecting member that is connected to the outer peripheral surface of the fastening nut and indirectly connects the flange member and the drainage pipe.
With
A protrusion is formed on either one of the inner peripheral surface of the connecting member and the outer peripheral surface of the fastening nut, and a guide groove for receiving the protrusion is formed on the other.
The guide groove is located at the boundary between the horizontal guide portion which is the lock position of the protrusion, the introduction guide portion which receives the protrusion and guides the protrusion to the horizontal guide portion, and the horizontal guide portion and the introduction guide portion. It also has a locking portion that constrains the protrusion to the horizontal guide.
The drainage pipe connecting device is characterized in that the horizontal guide portion is provided around the entire circumference of any one of the inner peripheral surface of the connecting member and the outer peripheral surface of the fastening nut. The connecting member is provided with the protrusion, and the connecting member is provided with the protrusion.
The fastening nut is provided with the guide groove, and the fastening nut is provided with the guide groove.
The connecting member is characterized in that by pressing the connecting member, the restraint of the protrusion by the lock portion can be released, and the protrusion can be moved from the horizontal guide portion to the introduction guide portion. The drainage pipe connecting device according to claim 1. The drainage pipe connecting device according to claim 2, wherein a connecting member-side display portion serving as a mark for pressing is provided on the outer periphery of the connecting member at a position approximately 90 degrees from the protrusion. The fastening nut is fastened to recognize that the protrusion provided on the connecting member is located at the boundary between the horizontal guide portion and the introduction guide portion in the guide groove provided on the fastening nut. The drainage pipe connecting device according to claim 3, wherein a nut-side display unit is provided.

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