Water-washing toilet device

Abstract

To provide a flush toilet bowl device that can reduce risk of coming-off or water leakage of a pipeline due to incorrect operation.SOLUTION: A flush toilet bowl device (1) of the present invention comprises: a toilet bowl body (2); a sanitary washing device (3); a valve unit (14) that branches supplied washing water into washing water used in the sanitary washing device and washing water for washing a bowl part, and also supplies and stops the washing water to the bowl part; a sanitary washing device connection pipe (6c) that connects the valve unit and the sanitary washing device; a quick fastener (48) that is attached to a connection part between a connection pipe attachment part of the valve unit and the sanitary washing device connection pipe to prevent the sanitary washing device connection pipe from falling off; and a fastener cover (50) that is placed to cover the quick fasteners. The fastener cover is provided on the valve unit, and comprises a U-shaped notch (54a) for inserting a connection part member, and an opening / closing plate (58) that covers an opening part of the notch in an openable / closable manner.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a flush toilet device, and more particularly to a flush toilet device provided with a sanitary washing device and a valve unit.

Background Art

[0002] Most of the currently installed flush toilet devices are equipped with a sanitary washing device. Also, many flush toilet devices are equipped with a valve unit for supplying and stopping the washing water for washing the bowl part. Therefore, in a flush toilet device provided with a sanitary washing device and a valve unit, it is necessary to branch the water supplied from the water supply to both the sanitary washing device and the valve unit.

[0003] Thus, in order to branch the tap water to the sanitary washing device and the valve unit, conventionally, a branch fitting was attached near a stop valve that was raised from the floor surface of the toilet room or the like, and pipes were connected from this branch fitting to the sanitary washing device and the valve unit, respectively. However, in such a water supply method, two pipes for the sanitary washing device and for the valve unit extend from the stop valve in the toilet room, and the appearance of the flush toilet device is impaired.

[0004] On the other hand, in the toilet device described in Japanese Patent Application Laid-Open No. H2017-31601 (Patent Document 1), one water supply pipe is drawn into the toilet device from a stop valve in the toilet room, and inside the toilet device, the water supply is branched for the sanitary washing device and for the toilet washing. Thus, in the invention described in Patent Document 1, it has been successful in giving a neat appearance to the toilet device installed in the toilet room.

Prior Art Documents

Patent Documents

[0005] [[ID=~]] [[ID=~]]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the toilet system described in Patent Document 1 has a problem in that the piping connected to the water supply valve and sanitary washing device may be accidentally disconnected due to misoperation. Specifically, in the toilet system described in Patent Document 1, various devices and piping, such as the connection between the water supply connection and the water supply pipe, are exposed by removing the upper cover at the rear of the toilet bowl. Therefore, if someone unfamiliar with the maintenance and repair of the toilet system opens the upper cover to perform maintenance, there is a risk of accidentally disconnecting piping that should not be disconnected.

[0007] In other words, if the branching fitting is installed near the shut-off valve inside the toilet room, only professional contractors or plumbing workers can operate it, and the probability of leaks or other problems occurring due to incorrect operation is extremely low. In contrast, in the toilet system described in Patent Document 1, branching occurs inside the system, so various devices are housed inside the upper cover, and there is a possibility that someone who is not necessarily familiar with handling piping may open the upper cover. For example, since various electrical devices are also housed inside the upper cover, it is conceivable that an electrical engineer unfamiliar with handling water piping might open the upper cover. Alternatively, in the event of a power outage or other emergency operation, it is conceivable that an ordinary user might open the upper cover and operate the water supply valve (valve unit). For this reason, in flush toilet systems of the type in which the supplied tap water is branched inside the toilet system (flush toilet system), there is a problem that the risk of pipes being removed or leaks occurring due to incorrect operation is high.

[0008] Therefore, the present invention aims to reduce the risk of pipe detachment or water leakage due to erroneous operation in a flush toilet system equipped with a sanitary cleaning device and a valve unit. [Means for solving the problem]

[0009] To solve the above-mentioned problems, the present invention provides a flush toilet device equipped with a sanitary cleaning device and a valve unit, comprising: a toilet body having a bowl portion for receiving waste; a sanitary cleaning device disposed on the toilet body; a valve unit connected to a water supply pipe, which divides the supplied cleaning water into cleaning water used by the sanitary cleaning device and cleaning water for cleaning the bowl portion, and also controls the supply and stop of cleaning water for cleaning the bowl portion; a sanitary cleaning device connecting pipe connecting the valve unit and the sanitary cleaning device; a quick fastener attached to the connection portion between the connecting pipe mounting portion of the valve unit and the sanitary cleaning device connecting pipe to prevent the sanitary cleaning device connecting pipe from falling off the valve unit; and a fastener cover disposed to cover the portion to which the quick fastener is attached, wherein the fastener cover is provided on the valve unit and is equipped with a U-shaped notch for inserting the connecting member of the sanitary cleaning device connecting pipe, and an opening / closing plate that can open and close to cover the opening portion of the U-shaped notch.

[0010] In the present invention configured as described above, the flushing water supplied from the water supply pipe is divided in the valve unit into flushing water used in the sanitary flushing device and flushing water for flushing the bowl. The valve unit also controls the supply and stop of flushing water for flushing the bowl of the toilet bowl. The valve unit and the sanitary flushing device are connected by a sanitary flushing device connecting pipe. A quick fastener is attached to the connection between the connecting pipe mounting part of the valve unit and the sanitary flushing device connecting pipe to prevent the sanitary flushing device connecting pipe from falling out. A fastener cover is attached to the part where the quick fastener is attached so as to cover it.

[0011] With the present invention configured in this way, a quick fastener is attached to the connection between the valve unit's connecting pipe mounting portion and the sanitary cleaning device connecting pipe, thereby preventing the sanitary cleaning device connecting pipe from accidentally falling off. Furthermore, the fastener cover is positioned to cover the portion to which the quick fastener is attached. Therefore, it is unlikely that someone who does not need to remove the sanitary cleaning device connecting pipe would remove the quick fastener, thus reducing the risk of the sanitary cleaning device connecting pipe being removed due to accidental operation. In addition, the fastener cover is provided on the valve unit and includes a U-shaped notch for inserting the tip of the sanitary cleaning device connecting pipe, and an opening / closing plate that covers the opening of this U-shaped notch in an openable and closable manner. Because the notch of the fastener cover provided for inserting the connecting member of the sanitary cleaning device connecting pipe is formed in a U-shape, the space required to insert the connecting member of the sanitary cleaning device connecting pipe can be reduced, and the sanitary cleaning device connecting pipe can be easily connected even when a flush toilet device is installed in a narrow space.

[0012] In the present invention, preferably, the fastener cover comprises a fastener cover body having a U-shaped notch, and an opening / closing plate which is separate from the fastener cover body and is detachably attached to the fastener cover body.

[0013] According to the present invention configured in this way, the opening and closing plate is constructed separately from the fastener cover body and is detachably attached to the fastener cover body. Therefore, even if the opening and closing plate, which is a movable part and easily damaged, is damaged, only the opening and closing plate can be easily replaced, allowing for inexpensive repairs.

[0014] In the present invention, preferably, the opening and closing plate is configured to be rotatable around a hinge portion, and the fastener cover body is provided with an opening stopper portion that limits the range of rotation of the opening and closing plate.

[0015] With the present invention configured in this way, an opening stopper is provided on the fastener cover body to limit the rotational range of the opening / closing plate, thereby preventing the opening / closing plate from opening too far and interfering with work on other parts, or from falling off.

[0016] In the present invention, preferably, the U-shaped notch has its open portion facing upward and widens towards the top, while the lower half is formed in a semicircular shape, and the semicircular shape of the lower half is configured to match the shape of the lower half of the circular flange portion of the connecting pipe mounting portion.

[0017] With the present invention configured in this way, the opening of the U-shaped notch is oriented upward and its width is increased towards the top, so that the connecting member of the sanitary cleaning device connecting pipe can be easily brought close to the connecting pipe mounting portion of the valve unit. Furthermore, the lower half of the U-shaped notch is formed in a semicircular shape, and the semicircular shape of the lower half matches the shape of the lower half of the circular flange portion of the connecting pipe mounting portion. Therefore, when connecting the sanitary cleaning device connecting pipe, the position where the connecting member of the sanitary cleaning device connecting pipe and the connecting pipe mounting portion of the valve unit are aligned can be easily recognized, and the connection can be made easily.

[0018] In the present invention, preferably, an O-ring is attached to the connecting member of the sanitary cleaning device connecting pipe, and a guide portion of a predetermined length is provided on the tip side of the O-ring to guide connection to the connecting pipe mounting portion.

[0019] According to the present invention configured in this way, a guide portion of a predetermined length is provided on the tip side of the O-ring attached to the connecting member to guide connection to the connecting pipe mounting portion. This prevents the connecting member from being inserted at a large inclination relative to the connecting pipe mounting portion, thereby preventing damage to the O-ring due to pinching.

[0020] In the present invention, preferably, the fastener cover is integrally configured with the connecting pipe mounting portion of the valve unit.

[0021] According to the present invention configured as described above, since the fastener cover is integrally formed with the connecting pipe attachment portion of the valve unit, the connecting pipe attachment portion of the valve unit and the fastener cover can be configured more compactly than in the case where the fastener cover is a separate body.

Advantages of the Invention

[0022] According to the flushing toilet device of the present invention, it is possible to reduce the risk of disconnection of the pipe or leakage of water due to misoperation.

Brief Description of the Drawings

[0023] [Figure 1] It is an overall configuration diagram of a flushing toilet device according to an embodiment of the present invention. [Figure 2] It is a side view of a flushing toilet device according to an embodiment of the present invention. [Figure 3] It is a cross-sectional view taken along line III-III of the valve unit of the flushing toilet device according to an embodiment of the present invention shown in FIG. 2. [Figure 4] In the flushing toilet device according to an embodiment of the present invention, it is a perspective view showing an enlarged valve unit attached below the water storage tank. [Figure 5] In the flushing toilet device according to an embodiment of the present invention, it is a perspective view showing an enlarged portion of the fastener cover provided on the valve unit. [Figure 6] In the flushing toilet device according to an embodiment of the present invention, it is a perspective view showing an enlarged portion of the fastener cover provided on the valve unit. [Figure 7] It is a perspective view of a quick fastener used in the flushing toilet device according to an embodiment of the present invention. [Figure 8] It is a cross-sectional view taken along line VIII-VIII in FIG. 6.

Modes for Carrying Out the Invention

[0024] A flush toilet device according to one embodiment of the present invention will be described below with reference to the attached drawings. First, Figure 1 is an overall configuration diagram of a flush toilet device according to one embodiment of the present invention. Figure 2 is a side view of the flush toilet device according to one embodiment of the present invention. As shown in Figures 1 and 2, a flush toilet device 1 according to one embodiment of the present invention comprises a ceramic toilet bowl body 2, a sanitary washing device 3 placed on the toilet bowl body 2, a tank device 4 provided on the rear side of the toilet bowl body 2, and a valve unit 14 that supplies washing water to the sanitary washing device 3 and the tank device 4.

[0025] Furthermore, the toilet bowl body 2 includes a bowl portion 2a for receiving waste, a drain trap portion (drain trap pipe 2b) extending from the bottom of the bowl portion 2a for discharging waste from within the bowl portion 2a, and a rim portion 2c formed on the upper edge of the bowl portion 2a. The sanitary cleaning device 3 is positioned above the rear of the toilet bowl 2 and is configured to clean the user's private parts based on user input. The tank device 4 constitutes part of the water supply unit that supplies flushing water to the toilet bowl body 2 in order to flush the bowl section 2a. Details of the tank device 4 will be described later.

[0026] The valve unit 14 is connected to the water supply pipe 6a and is configured to split the supplied cleaning water into cleaning water used in the sanitary cleaning device 3 and cleaning water stored in the tank device 4 for cleaning the bowl section 2a. The valve unit 14 is also configured to supply and stop the cleaning water stored in the tank device 4 for cleaning the bowl section 2a.

[0027] Furthermore, as shown in Figure 1, a stopcock 12 and a valve unit 14 are provided in the water supply path, extending from the upstream side to the downstream side. Specifically, as shown in Figure 2, a stopcock 12 is attached to a water pipe rising from the floor surface F1 of the toilet room, and a water supply pipe 6a extends from this stopcock 12 to the valve unit 14. Moreover, as shown in Figure 1, the valve unit 14 includes a constant flow valve 16 provided on the downstream side of the water supply pipe 6a, and a solenoid valve 18 that opens and closes an on-off valve (diaphragm-type main valve body 17) provided on the downstream side of the constant flow valve 16.

[0028] Furthermore, a tank device connecting pipe 6b is connected to the downstream side of the valve unit 14, and this tank device connecting pipe 6b supplies cleaning water to the water storage tank 10 of the tank device 4. That is, in the valve unit 14, the flow rate of the cleaning water flowing in from the water supply pipe 6a is adjusted to a constant level by the constant flow valve 16. Then, when the solenoid valve 18 opens electromagnetically and the flow path is opened by the on / off valve (diaphragm-type main valve body 17), the cleaning water that has flowed out of the valve unit 14 is sent to the tank device 4 via the tank device connecting pipe 6b. The cleaning water that has flowed into the tank device 4 is supplied to the tank unit 22 via the connecting unit 20.

[0029] On the other hand, the cleaning water that has passed through the constant flow valve 16 is branched upstream of the on / off valve, and the branched cleaning water is supplied to the sanitary cleaning device 3 via the sanitary cleaning device connecting pipe 6c. Furthermore, as shown in Figures 1 and 2, the tank device 4 is equipped with a discharge pipe 8 connected to its downstream side.

[0030] Next, as shown in Figure 1, the connecting unit 20 includes a housing 24, an overflow pipe 26, and a check valve 28. Furthermore, the housing 24 has a lower opening that is detachably connected to the upper opening of the water storage tank 10 of the tank unit 22.

[0031] Furthermore, the overflow pipe 26 connects the overflow port, which is provided in a part of the side wall of the housing 24, to the discharge pipe 8. The discharge pipe 8 is connected to the pump 30 of the tank device 4 on its upstream side, and to the rim water channel inside the rim of the toilet bowl body 2 on its downstream side. Furthermore, the check valve 28 is provided on the side wall of the housing 24, allowing the cleaning water inside the housing 24 to flow into the overflow pipe 26, while preventing the cleaning water inside the overflow pipe 26 from flowing back into the housing 24.

[0032] Next, as shown in Figure 1, the tank unit 22 includes a water storage tank 10, a pump 30, a float switch 32, and a drain plug 34. The pump 30 is installed in the middle of the water passage pipe 36, which is connected to the upstream side of the discharge pipe 8. The upstream end of this water passage pipe 36 is connected to the downstream end of the suction pipe 38 installed inside the water storage tank 10.

[0033] The cleaning water stored in the water storage tank 10 is drawn from the suction pipe 38 into the water supply pipe 36 when the pump 30 is activated, and then pumped through the pump 30 to the discharge pipe 8. As a result, all of the flushing water supplied from the water storage tank 10 to the discharge pipe 8 by the pump 30 is supplied to the rim water channel of the toilet bowl body 2. The flushing water in the rim water channel is then discharged from the rim discharge port into the bowl section 2a, performing toilet flushing (so-called toilet flushing using 100% rim water).

[0034] The float switch 32 detects the water level in the water storage tank 10, and the opening and closing operation of the solenoid valve 18 of the valve unit 14 is controlled by a controller (not shown) based on the water level in the water storage tank 10 detected by the float switch 32. Similarly, the operation of the pump 30 is also controlled by a controller (not shown) based on the water level in the water storage tank 10 detected by the float switch 32. For example, if the water level in the water storage tank 10 detected by the float switch 32 is below a predetermined level, the solenoid valve 18 opens and the pump 30 is activated. When the water level in the water storage tank 10 reaches the predetermined level, the solenoid valve 18 closes and the pump 30 stops.

[0035] The drain plug 34 is located at the bottom of the water storage tank 10. This drain plug 34 is normally kept closed, but can be opened as needed to discharge the cleaning water from the water storage tank 10 to the outside.

[0036] Next, with further reference to Figures 3 to 6, the details of the valve unit of a flush toilet device according to one embodiment of the present invention will be described. First, Figure 3 is a cross-sectional view along line III-III of the valve unit of a flush toilet device according to one embodiment of the present invention shown in Figure 2.

[0037] As shown in Figures 2 and 3, the valve unit 14 is located at the lower end of the water storage tank 10 of the tank device 4, which is located at the rear of the toilet bowl body 2. That is, the water storage tank 10 extends below the rim portion 2c, which is the upper end surface of the toilet bowl body 2, and the valve unit 14 is located below the water storage tank 10 and in a region behind the bowl portion 2a of the toilet bowl body 2. The valve unit 14 is covered by a single cover member 39 that is removablely provided on the side of the rear region of the toilet bowl body 2. Note that in the flush toilet device 1 shown in Figure 2, the cover member 39 is omitted and shown only by dashed lines.

[0038] Furthermore, the tank device connecting pipe 6b, which supplies cleaning water from the valve unit 14 to the tank device 4, is connected to the front end of the valve unit 14. On the other hand, the sanitary cleaning device connecting pipe 6c, which supplies cleaning water from the valve unit 14 to the sanitary cleaning device 3, is connected to the lower part of the valve unit 14.

[0039] Next, Figure 4 is a magnified perspective view showing the valve unit installed below the water storage tank. Figures 5 and 6 are magnified perspective views showing the fastener cover portion of the valve unit, with Figure 5 showing the state with the connecting member removed and Figure 6 showing the state with the connecting member installed. In Figures 5 and 6, the main body of the valve unit is omitted from the illustration. Furthermore, Figures 4 to 6 also illustrate several parts that are attached to the valve unit 14 to connect the sanitary cleaning device connecting pipe 6c.

[0040] As shown in Figure 4, the valve unit 14 is mounted so as to be suspended below a base plate 42 located at the rear of the toilet bowl body 2. The valve unit 14 has a generally cylindrical valve unit body 14a, and the constant flow valve 16 and the main valve body 17 (Figure 1) are housed within this valve unit body 14a. Furthermore, a solenoid valve 18 for driving a pilot valve (not shown) for opening and closing the main valve body 17 is attached to the front side of the valve unit body 14a. In addition, a handle 40 is provided on the central side of the valve unit body 14a for the user to manually open the main valve body 17 in the event of a power outage.

[0041] Under normal circumstances, a control signal is sent from the controller (not shown) to the solenoid valve 18, which opens and closes the main valve body 17. This allows the valve unit 14 to supply and stop flushing water to the tank device 4 for cleaning the bowl 2a. In emergencies such as power outages, the user operates the handle 40 to open the main valve body 17 and supply water to the tank device 4. During a power outage, the flushing water supplied from the valve unit 14 to the tank device 4 flows into the toilet bowl body 2 via the overflow pipe 26, cleaning the bowl 2a.

[0042] Furthermore, as shown in Figure 4, the front end of the valve unit body 14a is provided with a mounting portion 14b for connecting the tank device connecting pipe 6b. The rear end of the valve unit body 14a is provided with a mounting portion 14c for connecting the water supply pipe 6a extending from the stopcock 12. The flushing water flowing in from the water supply pipe 6a is branched within the valve unit body 14a; one branch is led to the main valve body 17 (Figure 1), and the other branch is led to a projection 44 that protrudes downward from the valve unit body 14a.

[0043] This protrusion 44 extends downward from the valve unit body 14a, behind the handle portion 40. A connecting pipe mounting portion 45 for connecting the sanitary cleaning device connecting pipe 6c is provided on the outer side surface of this protrusion 44. A fastener cover 50 is provided integrally with the connecting pipe mounting portion 45 of the valve unit body 14a, surrounding the connecting pipe mounting portion 45. The connecting pipe mounting portion 45 may be provided integrally with the valve unit body 14a, or it may be provided as a separate part.

[0044] On the other hand, a connecting member 46 is provided at the base end of the sanitary cleaning device connecting pipe 6c, which is connected to the connecting pipe mounting section 45. The sanitary cleaning device connecting pipe 6c is connected to the connecting pipe mounting section 45 of the valve unit 14 via this connecting member 46.

[0045] Furthermore, as shown in Figures 4 to 6, a quick fastener 48 is attached to the connection between the connecting pipe mounting portion 45 of the valve unit 14 and the connecting member 46 of the sanitary cleaning device connecting pipe 6c, preventing the sanitary cleaning device connecting pipe 6c from falling off the valve unit 14. The portion to which the quick fastener 48 is attached is covered by a fastener cover 50. This fastener cover 50 is provided integrally with the valve unit body portion 14a, and the tip of the connecting pipe mounting portion 45 is surrounded by the fastener cover 50. In this state, the connecting member 46 of the sanitary cleaning device connecting pipe 6c is connected to the connecting pipe mounting portion 45, and the quick fastener 48 is attached to this connection portion.

[0046] As shown in Figure 5, the connecting pipe mounting portion 45 is formed in a generally cylindrical shape, and its interior is in communication with the valve unit body portion 14a, and is configured to allow the cleaning water branched off in the valve unit body portion 14a to flow out. In addition, a flange portion 45a extending radially outward is formed at the tip of the connecting pipe mounting portion 45.

[0047] The connecting member 46 is a pipe member provided at the base end of the sanitary cleaning device connecting pipe 6c, with one end connected to the connecting pipe mounting portion 45 and the other end connected to the sanitary cleaning device connecting pipe 6c. The connecting member 46 has a small diameter portion 46a and a large diameter portion 46b at the connection portion with the connecting pipe mounting portion 45, and the connecting member 46 is connected to the connecting pipe mounting portion 45 by inserting the small diameter portion 46a into the connecting pipe mounting portion 45. In addition, watertightness between the connecting member 46 and the connecting pipe mounting portion 45 is ensured by an O-ring 47 attached to the outer circumference of the small diameter portion 46a.

[0048] Furthermore, the portion of the small-diameter section 46a that is closer to the tip of the O-ring 47 functions as a guide portion 46d, which has a predetermined length and is configured to guide the connection of the connecting member 46 to the connecting pipe mounting section 45. In addition, a flange portion 46c extending radially outward is formed at the end of the large-diameter section 46b that is on the side of the small-diameter section 46a. The flange portion 45a of the connecting pipe mounting section 45 and the flange portion 46c of the connecting member 46 have approximately the same diameter, and when the connecting member 46 is attached to the connecting pipe mounting section 45, the flange portion 45a and the flange portion 46c come into contact with each other.

[0049] Next, the structure of the fastener cover 50 will be described with reference to Figure 5. As shown in Figure 5, the fastener cover 50 is a resin component and comprises a fastener cover body and an opening / closing plate 58 which is separate from the fastener cover body and detachably attached to the fastener cover body. The fastener cover body is formed from a first side plate 52, a second side plate 54, and two connecting side plates 56 that connect them, and is integrally formed with the connecting pipe mounting portion 45 of the valve unit 14. In addition, one of the connecting side plates 56 is provided with an opening / closing plate connecting portion 56a into which one end of the opening / closing plate 58 can be inserted, and the opening / closing plate 58 is attached thereto. If the opening / closing plate 58 is damaged, only the opening / closing plate 58 can be replaced.

[0050] The first side plate 52, which constitutes the fastener cover body, is a flat plate-shaped portion with a circular opening for receiving the connecting pipe mounting portion 45 of the valve unit 14, and is generally rectangular in shape. The second side plate 54 is a flat plate-shaped portion formed generally parallel to the first side plate 52. The two connecting side plates 56 are generally rectangular plate-shaped portions formed generally parallel to each other so as to connect the side edges on both sides of the first side plate 52 and the second side plate 54.

[0051] The second side plate 54 is provided with a U-shaped notch 54a for inserting the connecting member 46 of the sanitary cleaning device connecting pipe 6c, and is generally rectangular in shape. The opening of this U-shaped notch 54a faces upward (opens upward) and is formed to widen towards the top. Furthermore, the lower half of the U-shaped notch 54a is formed in a semicircular shape, and this semicircular shape of the lower half is configured to match the flange portion 45a of the connecting pipe mounting portion 45.

[0052] As a result, a rectangular upper end opening is formed at the upper end of the fastener cover body of the fastener cover 50, surrounded by the first side plate 52, the second side plate 54, and the two connecting side plates 56.

[0053] The opening / closing plate 58 is an elongated rectangular plate-shaped member that is detachably attached to cover the upper end opening of the fastener cover body and the opening of the U-shaped notch 54a. An insertion portion 58b is provided at one end of the opening / closing plate 58, and by inserting this insertion portion 58b into the opening / closing plate connecting portion 56a of the fastener cover body, the opening / closing plate 58 is rotatably attached to the fastener cover body. That is, a hinge portion 58d is provided at the base end of the insertion portion 58b, and as this hinge portion 58d is elastically bent and deformed, the opening / closing plate 58 rotates around the hinge portion 58d relative to the fastener cover body, and the upper end opening of the fastener cover body is opened and closed.

[0054] On the other hand, an opening stopper portion 56b is provided adjacent to the opening / closing plate connecting portion 56a of the connecting side plate 56. This opening stopper portion 56b is configured to protrude upward from the opening / closing plate connecting portion 56a. When the opening / closing plate 58 is rotated significantly in the opening direction, the opening stopper portion 56b interferes with the opening / closing plate 58, thereby limiting the range of rotation of the opening / closing plate 58. (Figure 8)

[0055] Furthermore, the end of the opening / closing plate 58 opposite to the insertion portion 58b is provided with a flat plate-shaped engaging portion 58a that extends almost perpendicularly to the opening / closing plate 58. On the other hand, the connecting side plate 56 on the side where the opening / closing plate connecting portion 56a is not provided is provided with an engaging claw 56c (Figure 8). When the opening / closing plate 58 covers the upper end opening of the fastener cover body, the engaging portion 58a engages with the engaging claw 56c. As a result, the opening / closing plate 58 is snapped into place with the upper end opening of the fastener cover 50 closed. In addition, the opening / closing plate 58 is provided with a gripping portion 58c that protrudes on the opposite side from the engaging portion 58a. By pushing this gripping portion 58c toward the hinge portion 58d, the engaging portion 58a disengages from the engaging claw 56c, and the snap fastening is released.

[0056] Next, the structure of the quick fastener 48 will be explained with reference to Figure 7. Figure 7 is a perspective view of the quick fastener 48. The quick fastener 48 is a component formed by bending a thin sheet of metal. This quick fastener 48 is attached to the connection between the sanitary cleaning device connection pipe 6c and the connection member 46 of the sanitary cleaning device connection pipe 6c, so as to prevent the connection member 46 of the sanitary cleaning device connection pipe 6c from falling off the connection pipe mounting portion 45 of the valve unit 14.

[0057] As shown in Figure 7, the quick fastener 48 consists of a connecting portion 48a and two legs extending downward from the lower ends on both sides of the connecting portion 48a. These legs of the quick fastener 48 are bent in opposite directions so as to be convex outwards. The upper half of each leg forms a first inclined portion 48b, and the lower half forms a second inclined portion 48c. In addition, a guide portion 48d is formed at the lower end of each second inclined portion 48c.

[0058] The connecting portion 48a is a part formed by bending a thin plate into roughly an inverted U-shape. The first inclined portions 48b are each formed to extend downward from the lower ends on both sides of the connecting portion 48a, and are formed in a V-shape so that the distance between them widens as they move downward. Each of the first inclined portions 48b is also provided with a substantially rectangular opening to simultaneously receive the flange portion 45a of the connecting pipe mounting portion 45 and the flange portion 46c of the connecting member 46 when the quick fastener 48 is attached.

[0059] Each second inclined surface 48c is formed to extend downward from the lower end of each first inclined surface 48b and is bent downward so that the distance between them narrows. Each second inclined surface 48c is also provided with a substantially rectangular opening to simultaneously receive the flange portion 45a of the connecting pipe mounting portion 45 and the flange portion 46c of the connecting member 46 when the quick fastener 48 is attached.

[0060] The guide portion 48d is a part that extends outward from the lower end of each second inclined portion 48c in a generally horizontal direction. When attaching the quick fastener 48 to the connection between the valve unit 14 and the sanitary cleaning device connecting pipe 6c, each guide portion 48d guides the quick fastener 48 so that the spacing between each leg widens due to elastic deformation.

[0061] Next, referring to Figure 8, we will explain the connection of the sanitary cleaning device connecting pipe 6c to the valve unit 14. Figure 8 is a cross-sectional view along the line VIII-VIII in Figure 6.

[0062] First, when the sanitary cleaning device connecting pipe 6c is not connected to the valve unit 14, the tip of the connecting pipe mounting portion 45 protrudes into the fastener cover 50 through an opening provided in the first side plate 52 of the fastener cover 50 (Figure 5). Next, the connecting member 46 of the sanitary cleaning device connecting pipe 6c is connected to the connecting pipe mounting portion 45 of the valve unit 14. Specifically, the tip of the connecting member 46 is inserted into the fastener cover 50 through the U-shaped notch 54a of the second side plate 54 of the fastener cover 50, and the leading portion 46d provided on the small diameter portion 46a of the connecting member 46 is inserted into the connecting pipe mounting portion 45. At this time, since the U-shaped notch 54a is open at the top and widens towards the top, when the connecting member 46 is brought close from above, the connecting member 46 does not interfere with the second side plate 54, and the connecting member 46 can be easily connected to the connecting pipe mounting portion 45 even in a narrow space.

[0063] Furthermore, since the tip of the connecting member 46 is provided with a guide portion 46d of a predetermined length, the connecting member 46 is guided by the guide portion 46d, preventing the connecting member 46 from being inserted into the connecting pipe mounting portion 45 at an angle. This prevents the O-ring 47 attached to the small diameter portion 46a of the connecting member 46 from getting caught and being damaged. In addition, the semicircular shape of the lower half of the U-shaped notch 54a is shaped to match the lower half of the flange portion 45a of the connecting pipe mounting portion 45, making it easy to recognize the position where the connecting member 46 should be aligned, and allowing the connecting member 46 to be easily inserted into the connecting pipe mounting portion 45.

[0064] When the connecting member 46 is inserted, as shown in Figure 6, the tip of the connecting member 46 protrudes into the fastener cover 50, and the flange portion 46c provided on the connecting member 46 and the flange portion 45a provided on the connecting pipe mounting portion 45 come into contact with each other. In this state, the flange portions 45a and 46c are entirely located inside the fastener cover 50. In this state, the quick fastener 48 is inserted from the upper end opening of the fastener cover 50 and attached to the connection portion between the connecting pipe mounting portion 45 and the connecting member 46 (sanitary cleaning device connecting pipe 6c). That is, when the quick fastener 48 is pressed against the connection portion between the connecting pipe mounting portion 45 and the connecting member 46, the legs on both sides of the quick fastener 48 are guided by the guide portions 48d (Figure 7) of the quick fastener 48 and are pushed outward by elastic deformation. When the quick fastener 48 is pushed into the designated position, each guide portion 48d moves over the connection portion between the connecting pipe mounting portion 45 and the connecting member 46, and the quick fastener 48 returns to roughly its original shape.

[0065] That is, as shown in Figure 8, the connection between the connecting pipe mounting portion 45 and the connecting member 46 is received between the legs on both sides of the quick fastener 48. As a result, parts of the flange portions 45a and 46c that are in contact with each other protrude into the rectangular openings provided in the first inclined surface portion 48b and the second inclined surface portion 48c of the quick fastener 48, respectively. In this state, the flange portions 45a and 46c engage with the edges of the rectangular openings provided in the first and second inclined surfaces of the quick fastener 48, respectively. Therefore, even if someone tries to pull the connecting member 46 of the sanitary cleaning device connecting pipe 6c out of the connecting pipe mounting portion 45, the flange portion 46c of the connecting member 46 engages with the quick fastener 48, preventing it from being pulled out. This prevents the sanitary cleaning device connecting pipe 6c from falling out of the valve unit 14.

[0066] After attaching the quick fastener 48 to the connection between the connecting pipe mounting portion 45 and the connecting member 46, the opening / closing plate 58 of the fastener cover 50 is rotated to engage the engaging portion 58a at the tip of the opening / closing plate 58 with the engaging claw 56c of the connecting side plate 56. This snaps the opening / closing plate 58 in place, covering the upper end opening of the fastener cover 50. In this way, the quick fastener 48 cannot be removed when the opening / closing plate 58 is closed, and the quick fastener 48 is almost invisible from the outside. Therefore, in the event of an emergency such as a power outage, it is possible to prevent a user from accidentally pulling out the quick fastener 48 when trying to operate the handle portion 40.

[0067] Therefore, in this state, in order to remove the sanitary cleaning device connecting pipe 6c from the valve unit 14, first, the opening / closing plate 58 of the fastener cover 50 is opened to expose the quick fastener 48, and the quick fastener 48 is pulled upward through the upper end opening of the fastener cover 50. Next, the connecting member 46 of the sanitary cleaning device connecting pipe 6c is removed from the connecting pipe mounting part 45. For this reason, the quick fastener 48 is not easily visible to the user, and it is possible to effectively prevent the sanitary cleaning device connecting pipe 6c from being removed from the valve unit 14 due to accidental operation by an inexperienced user. Furthermore, the opening / closing plate 58 of the fastener cover 50 is connected to the connecting side plate 56 on the front side of the toilet bowl body 2, and the engaging part 58a is arranged to engage with the engaging claw 56c on the rear side of the toilet bowl body 2 to close the upper end opening. Therefore, the engagement portion between the engagement portion 58a of the opening / closing plate 58 and the engagement claw 56c is difficult to see, reducing the possibility that a user unfamiliar with operating the flush toilet device 1 may unnecessarily open the opening / closing plate 58.

[0068] In the flush toilet device 1 of the present invention, a quick fastener 48 is attached to the connection between the connecting pipe mounting portion 45 of the valve unit 14 and the sanitary cleaning device connecting pipe 6c (Figure 4), thereby preventing the accidental detachment of the sanitary cleaning device connecting pipe 6c. Furthermore, the fastener cover 50 is positioned to cover the portion to which the quick fastener 48 is attached (Figure 6). Therefore, it is unlikely that someone who does not need to remove the sanitary cleaning device connecting pipe would remove the quick fastener 48, thus reducing the risk of the sanitary cleaning device connecting pipe 6c being removed due to accidental operation. In addition, the fastener cover 50 includes a U-shaped notch 54a for inserting the tip of the sanitary cleaning device connecting pipe 6c, and an opening / closing plate 58 that can open and close to cover the opening of the U-shaped notch 54a. Therefore, since the fastener cover 50, which is provided for inserting the connecting member 46 of the sanitary cleaning device connecting pipe 6c, is formed in a U-shape, the space required to insert the connecting member 46 of the sanitary cleaning device connecting pipe 6c can be reduced, and the sanitary cleaning device connecting pipe 6c can be easily connected even when the flush toilet device 1 is installed in a narrow space.

[0069] Furthermore, according to the flush toilet device 1 of this embodiment, the opening / closing plate 58 is constructed separately from the fastener cover body and is detachably attached to the fastener cover body. Therefore, even if the opening / closing plate 58, which is a movable part and easily damaged, is damaged, only the opening / closing plate 58 can be easily replaced, allowing for inexpensive repairs.

[0070] Furthermore, according to the flush toilet device 1 of this embodiment, an opening stopper 56b that limits the rotational range of the opening / closing plate 58 is provided on the fastener cover body, so that the opening / closing plate 58 does not open too far and interfere with work on other parts, or the opening / closing plate 58 does not fall off.

[0071] Furthermore, according to the flush toilet device 1 of this embodiment, the opening of the U-shaped notch 54a is oriented upward and its width is increased towards the top, so that the connecting member 46 of the sanitary flushing device connecting pipe 6c can be easily brought close to the connecting pipe mounting portion 45 of the valve unit 14. In addition, the lower half of the U-shaped notch 54a is formed in a semicircular shape, and the semicircular shape of the lower half is shaped to match the lower half of the circular flange portion 45a of the connecting pipe mounting portion 45. Therefore, when connecting the sanitary flushing device connecting pipe 6c, the position where the connecting member 46 of the sanitary flushing device connecting pipe 6c and the connecting pipe mounting portion 45 of the valve unit 14 are aligned can be easily recognized, and the connection can be easily made.

[0072] Furthermore, according to the flush toilet device 1 of this embodiment, a guide portion 46d of a predetermined length is provided on the tip side of the O-ring 47 attached to the connecting member 46 to guide connection to the connecting pipe mounting portion 45. This prevents the connecting member 46 from being inserted with a large inclination relative to the connecting pipe mounting portion 45, thereby preventing damage to the O-ring 47 due to pinching.

[0073] Although preferred embodiments of the present invention have been described above, various modifications can be made to the embodiments described above. In particular, in the embodiments described above, the flushing water for cleaning the bowl portion 2a that has passed through the valve unit 14 is stored in the water storage tank 10 and supplied to the bowl portion 2a by the pump 30. However, the present invention can also be applied to a flush toilet device that does not have a water storage tank and is a direct-pressure type flush toilet device, or it can be applied to a tank-type flush toilet device that has a water storage tank but does not have a pump. Furthermore, the present invention can be applied to any type of flushing toilet, such as a flush toilet device that discharges flushing water stored in the water storage tank 10 and flushing water supplied directly from the water supply from a jet outlet and a rim outlet, respectively.

[0074] Furthermore, in the embodiment described above, the valve unit 14 had the function of splitting the supplied cleaning water into cleaning water used in the sanitary cleaning device 3 and cleaning water for cleaning the bowl section 2a, the function of supplying and stopping the cleaning water for cleaning the bowl section 2a, and the function of manually supplying cleaning water to the tank device 4 in the event of an emergency such as a power outage. However, the valve unit does not necessarily have to have a function for use in emergencies such as power outages. [Explanation of symbols]

[0075] 1 Flush toilet device 2 Toilet bowl 2a Bowl section 2b Drain trap pipe 2c Rim section 3. Sanitary cleaning equipment 4 Tank equipment 6a Water supply pipe 6b Tank device connecting pipe 6c Sanitary cleaning device connecting pipe 10 Water storage tanks 12. Shut-off valve 14 Valve Unit 14a Valve unit main body 14b Mounting section 14c mounting part 16 Constant flow valve 17 Main valve body 18 Solenoid valve 20 connecting units 22 Tank Units 24 Housing 26 Overflow pipe 28 Check valve 30 pumps 32 Float switch 34 Drain plug 36 Water pipe 38 Suction tube 39 Cover component 40 Handle section 42 Base Plate 44 Protrusion 45 Connection pipe mounting section 45a Flange section 46 Connecting Member 46a Small diameter section 46b Large diameter section 46c flange section 46d Leading section 47 O-rings 48 Quick Fasteners 48a Connection part 48b 1st slope section 48c 2nd slope section 48d Information Department 50 Fastener Cover 52 1st side plate 54 2nd side plate 54a U-shaped notch 56 Connecting side plate 56a Opening / closing plate connection part 56b Opening stopper 56c Engagement claw 58 Opening / Closing Plate 58a Engagement part 58b Insertion section 58c grip part 58d Hinge section

Claims

1. A flush toilet system equipped with a sanitary cleaning device and a valve unit, A toilet bowl with a bowl section for receiving waste, A sanitary cleaning device is placed on top of this toilet bowl, A valve unit connected to a water supply pipe divides the supplied cleaning water into cleaning water used in the sanitary cleaning device and cleaning water for cleaning the bowl section, and also controls the supply and stop of the cleaning water for cleaning the bowl section. This valve unit and the sanitary cleaning device connecting pipe that connects the above-mentioned sanitary cleaning device, A quick fastener is attached to the connection between the valve unit's connecting pipe mounting portion and the sanitary cleaning device connecting pipe, to prevent the sanitary cleaning device connecting pipe from falling off the valve unit. A fastener cover is positioned to cover the part where this quick fastener is attached, It has, The fastener cover is provided on the valve unit and includes a U-shaped notch for inserting the connecting member of the sanitary cleaning device connecting pipe, and an opening / closing plate that covers the opening of the U-shaped notch in an openable and closable manner. The above-mentioned fastener cover is characterized by comprising a fastener cover body having the above-mentioned U-shaped notch, and an opening / closing plate which is constructed separately from the fastener cover body and is detachably attached to the fastener cover body.

2. The flush toilet device according to claim 1, wherein the opening and closing plate is configured to be rotatable around a hinge, and the fastener cover body is provided with an opening stopper that limits the range of rotation of the opening and closing plate.

3. The flush toilet device according to claim 1 or 2, wherein the U-shaped notch has an opening that faces upward and widens towards the top, while the lower half is formed in a semicircular shape, and the semicircular shape of the lower half is configured to match the shape of the lower half of the circular flange portion of the connecting pipe mounting portion.

4. A flush toilet device according to any one of claims 1 to 3, wherein an O-ring is attached to the connecting member of the sanitary cleaning device connecting pipe, and a guide portion of a predetermined length is provided on the tip side of the O-ring to guide connection to the connecting pipe mounting portion.

5. The flush toilet according to any one of claims 1 to 4, wherein the fastener cover is integrally configured with the connecting pipe mounting portion of the valve unit.

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