JP2008023006A - Liquid soap feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a check valve (ball) is detached from a spring at the time of assembly. <P>SOLUTION: The check valves 22 and 34 are integrally constituted of a hollow bush 23 provided with openings on both ends, a ball 24 housed inside the bush 23, whose diameter is larger than the opening 23a on the upstream side of the bush 23, a ball energizing spring 25 for energizing the ball 24 to the opening 23a of the bush 23, and a hollow bush lid 26 which locks one end of the ball energizing spring 25 and is freely detachably mounted on the opening 23b on the downstream side of the bush 23. Thus, the ball 24 and the spring 25 are accurately and easily positioned and the check valves 22 and 34 are assembled. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a water soap feeder used for a washstand or the like. More specifically, the present invention relates to a water soap supply device that supplies water soap stored in a container.

  Conventionally, as this kind of water soap supply device, two check valves are provided in the water soap passage, and when the pressing member is pressed, the check valve (ball) is opened and closed, and the flow of the soap liquid is There has been known a technique of allowing and preventing (for example, Patent Document 1). However, since the check valve (ball) is not energized with respect to the suction port (opening), the check valve is opened even when the check valve is not intended to be opened. As a result, there was a problem that the soap solution leaked from there. To solve this problem, use a spring to bias the check valve (ball) against the inlet (opening), and check the valve when it is not intended to open. A technique for preventing the valve (ball) from being opened is conceivable.

Japanese Patent Laid-Open No. 2001-353094

  However, in the water soap supply device using a spring for urging the check valve (ball) against the inlet (opening), the check valve is in contact with the spring. (Ball) is brought into contact with the inlet (opening) and assembled, but the check valve (ball) is spherical, so it is not easy to assemble, and the check valve (ball) is removed from the spring during assembly. There was a problem such as coming off. Furthermore, the structure inside the water soap feeder was complicated, and it was even more so in situations where it was necessary to work inside the water soap feeder. Therefore, when assembled in a state where the check valve (ball) position and the contact position of the spring are shifted, the shape of the spring is deformed and the check valve (ball) is fixed to the suction port. Thus, there is a problem that the check valve (ball) is opened when the pressing member is not pressed, or when the check valve (ball) is not intended to be opened.

  The present invention has been made to solve the above-described problem, and enables the check valve to be assembled by accurately and easily positioning the ball and the spring, and when the check valve is not intended to be opened. An object of the present invention is to provide a water soap feeder in which the check valve does not open.

In order to solve the above problems and achieve the above object, the first aspect of the present invention provides:
A water soap supply device for supplying water soap contained in a container through a water soap passage, a cylinder provided in the water soap passage, and a hollow shape provided in the cylinder and movable with respect to the cylinder A piston, a hand holding part for moving the piston, an upstream check valve that is provided upstream of the piston, allows the soap soap to flow into the cylinder and prevents backflow, and an upstream check valve A downstream check valve that is provided on the downstream side of the valve, allows the soap soap to flow out from the cylinder to the outlet of the soap soap passage, and prevents backflow, and is provided on the upstream side of the piston. And an upstream check valve and / or a downstream check valve are housed inside the bush and a hollow bush having openings at both ends. Open upstream of bush A ball that has a diameter larger than the diameter of the ball, a ball biasing spring that biases the ball against the opening of the bush, and a hollow that is detachably attached to the opening on the downstream side of the bush by locking one end of the ball biasing spring. And a flow of the soap from the container into the cylinder by preventing a part of the ball of the upstream check valve from contacting the soap soap passage on the inner surface of the cylinder, and In addition, a part of the ball of the downstream check valve is brought into contact with the water soap passage on the inner surface of the piston, thereby preventing the flow of water soap from the cylinder to the outlet of the water soap passage. .

  In the water soap feeder configured as described above, the ball biasing spring is mounted in a state where the ball is in contact with the opening of the bush, and the bush lid is mounted in the opening on the downstream side of the bush in this state. Thus, the upstream check valve and / or the downstream check valve are assembled. In this way, the ball biasing spring is fixed by the bush cover in a state where the ball is biased to the opening on the upstream side of the bush from the ball biasing spring. It can be positioned at a position, and it can be assembled so that the contact position between the ball and the ball biasing spring is also an appropriate position. Further, with the upstream check valve and / or the downstream check valve pre-assembled, a part of the ball of the upstream check valve is brought into contact with the water soap passage on the inner surface of the cylinder, and Since the water soap supply device is assembled by attaching a part of the ball of the downstream check valve so as to be in contact with the water soap passage on the inner surface of the piston, it is easy to assemble the water soap supply device. . In addition, since it is not assembled with the contact position of the check valve ball and the ball urging spring shifted, it is not possible to generate soap even when the hand pressing part is pressed, or to open the check valve. When not intended, the check valve does not open. Thus, a predetermined amount of water soap can be discharged from the exit of the water soap passage only when necessary.

  In addition, even if the contact position between the ball biasing spring and the ball is shifted or the contact position between the opening on the upstream side of the bush and the ball is shifted, it is sufficient to readjust the contact position. Since it can be performed by the upstream check valve and / or the upstream check valve alone, it can be easily performed.

  According to a second aspect of the present invention, there is provided a water soap feeder according to the first aspect, comprising a container for storing the water soap.

  A third aspect of the present invention is the water soap feeder according to the first aspect or the second aspect, wherein an opening on the upstream side of the bush is provided with a notch directed toward the downstream side. It is characterized by that.

  In the water soap feeder configured as described above, a notch directed to the downstream side is provided in the opening on the upstream side of the bush, so that the notch becomes a flow path. Even if it is throttled, a sufficient flow path can be secured, and a desired amount of water soap can be discharged from the outlet of the water soap passage without lowering the flow rate of water soap.

  According to a fourth aspect of the present invention, there is provided a water soap feeder according to any one of the first to third aspects, wherein the bush lid is provided with a guide portion for externally fitting a ball biasing spring. It is characterized by that.

  In the water soap feeder configured as described above, a guide portion for externally fitting the ball biasing spring is provided on the bush lid, so that this guide portion suppresses deformation of the ball biasing spring and presses the hand pressing portion. Even so, it is possible to further prevent the check valve from being opened when the soap does not come out or when the check valve is not intended to be opened.

  According to a fifth aspect of the present invention, there is provided a water soap feeder according to the fourth aspect, wherein the bush and the bush lid are a hole portion in which a claw portion provided in the bush lid is provided in the bush. It is characterized by being fitted by snap fit.

  In the water soap feeder configured as described above, the bush and the bush lid are fitted with a ball on the guide portion because the claw portion provided on the bush lid is fitted into the hole portion provided on the bush by a snap fit. With the biasing spring fitted, the ball can be placed on the ball biasing spring, and in this state, the bush lid can be inserted straight into the bush and fixed. As a result, the ball biasing spring can be mounted straight without being twisted.

  According to the water soap feeder of the present invention, the ball and the spring can be accurately and easily positioned and assembled, and when the check valve is not intended to be opened, the check valve is prevented from opening. can do.

Hereinafter, an embodiment of the water soap feeder of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a mounting configuration of a sulphur soap feeder in an embodiment of the present invention.

  As shown in FIG. 1, the wash basin 7 is provided with a water soap feeder 1 and a water discharge nozzle 8. The water soap feeder 1 is composed of a water soap container 2, a water soap tube 3, a fixture 4, and a supply plug body 5.

  The water soap container 2 is a container for storing the water soap, and the supply plug main body 5 is for discharging the water soap stored in the water soap container 2. The water soap container 2 and the supply tap main body 5 are communicated with each other by a water soap tube 3 housed in a water soap hose (not shown). To the supply plug body 5. In the present embodiment, along the flow of the soap, the soap soap container 2 side is described as the upstream side, and vice versa.

  The water soap container 2, the water soap tube 3 and the water soap hose (not shown) are detachably mounted. Specifically, a male screw provided on the outer peripheral surface of the opening of the water soap container 2 and a female screw provided on the inner peripheral surface of the lid 2a of the water soap container 2 are screwed together, and the tip of the lid 2a A water soap tube 3 is inserted into the cylindrical part of the tube, and a water soap soap hose (not shown) is externally fitted and is detachably mounted. The mounting bracket 6 is for fixing the water soap container 2 to a wall surface or the like.

  Next, the water soap feeder of the present invention will be described with reference to FIG. FIG. 2 is a partial cross-sectional view of a water soap supply device according to an embodiment of the present invention.

  The water soap feeder 1 is mounted on the vertical wall surface of the wash basin 7 by fixing the supply plug body 5 to the fixing bracket 4. In addition, the supply plug main body 5 is assembled in advance in the factory in the order of (1) to (6) shown below, and is constructed according to the following procedures (a) and (b) at the construction site. . The water soap feeder 1 of the present invention is not limited to the one assembled in the following assembly order and construction order, and may be assembled in another assembly order and construction order.

<Assembly order>
(1) The tightening nut 29 and the O-ring 35 are mounted on the hand pressing body 31, and the downstream check valve 34 is mounted on the upstream side of the hand pressing body 31.
(2) The piston 19 to which the U packing 20 and the O-ring 36 are attached is fastened to the hand pressing portion main body 31.
(3) With the O-ring 28 and the O-ring 18 attached to the downstream cylinder 17, the upstream cylinder 16 is tightened thereto.
(4) With the piston biasing spring 27 attached to the piston 19 and the upstream check valve 22 mounted on the piston biasing spring 27, the cylinder 15 is inserted therein.
(5) Thereafter, the main body cover 11 having the O-ring 14 attached to the outer periphery thereof is tightened by the tightening nut 29.
(6) The hand pressing portion guide 32 and the hand pressing portion cover 33 are attached to the hand pressing portion main body 31, and the cap 30 is tightened after insertion.

<Construction order>
(A) First, the fixing bracket 4 to which the washer 109 and the packing 10 are attached is inserted from the back side of the wall surface, and is fixed by the nut 9 via the ring 108 from the front side of the wall surface.
(B) The supply plug body 5 assembled in the above (1) to (6) is fixed to the fixing bracket 4. In other words, the supply plug body 5 is fitted on the outer periphery of the ring 108 and the tip of the set screw 13 inserted into the screw hole 12 is pressed against the ring 108, whereby the supply plug body 5 is restricted from moving back and forth and rotating. In this state, it is fixed to the fixing bracket 4. The rear end of the fixing bracket 4 and the inner periphery of the main body cover 11 are in contact with each other while being sealed by an O-ring 14. The supply plug main body 5 is configured to be supported by the wall surface by being transmitted to the wall surface.

  Each structure of the water soap feeder 1 assembled in the following assembly sequence and construction sequence described above will be specifically described.

(Fixing bracket 4)
As described above, in the water soap feeder 1, the fixture 4 is first fixed to the wall surface. The fixing bracket 4 is for fixing the supply plug body 5 and the pipe joint (not shown). The fixture 4 is a hollow and cylindrical member. As shown in FIG. 2, a male screw is formed on the outer peripheral surface of the fixture 4.

  The fixing metal 4 is inserted into the hole provided in the wall surface having the same diameter as the outer diameter of the fixing metal 4 as described above, and is fixed by the nut 9 via the ring 108 on the opposite side of the wall surface. Specifically, the fixing bracket 4 is fixed to the wall surface by screwing the female screw on the inner peripheral surface of the nut 9 and the male screw on the outer peripheral surface of the fixing bracket 4. A washer 109 and a packing 10 are sandwiched between the wall surface and the fixture 4.

(Supply plug body 5)
The main body cover 11 is hollow and has a small outer diameter on the downstream side as shown in FIG. A screw hole 12 is provided in a lower portion of the main body cover 11, and a fixing screw 4 and the main body cover 11 are fixed by screwing a set screw 13 into the screw hole 12. An O-ring 14 is provided between the outer peripheral surface of the fixture 4 and the inner peripheral surface of the main body cover 11.

  The cylinder 15 includes an upstream cylinder 16 and a downstream cylinder 17. The upstream cylinder 16 has a small diameter at the tip as shown in FIG. A thin cylindrical portion 16a is provided at the distal end of the upstream cylinder 16, and the water soap tube 3 is attached to the cylindrical portion 16a. Moreover, the front end portion of the downstream cylinder 17 is formed with a small diameter, and the rear end portion is formed with a large diameter.

  The upstream cylinder 16 and the downstream cylinder 17 are detachably mounted. Specifically, a female screw is formed on the inner peripheral surface of the upstream cylinder 16, and a male screw is formed on the outer peripheral surface of the distal end portion of the downstream cylinder 17. Then, the female screw on the inner peripheral surface of the upstream cylinder 16 and the male screw on the outer peripheral surface of the downstream cylinder 17 are screwed together to be detachably mounted. An O-ring 18 is provided between the inner peripheral surface of the upstream cylinder 16 and the outer peripheral surface of the downstream cylinder 17. An O-ring 28 is also provided between the inner peripheral surface of the main body cover 11 and the outer peripheral surface of the downstream cylinder 17.

  Inside the downstream cylinder 17, a piston 19 having an outer diameter substantially the same as the inner diameter of the downstream cylinder 17 is provided. The piston 19 is hollow inside and reciprocates in the downstream cylinder 17. A protrusion 19 a having an outer diameter that is substantially the same as the inner diameter of the rear end portion of the downstream cylinder 17 is provided behind the piston 19 (downstream side). The protrusion 19 a guides the movement of the piston 19. Specifically, the protrusion 19a moves along the inner surface of the portion where the diameter of the rear end of the downstream cylinder 17 is increased, and moves to the vicinity of the step portion where the diameter of the downstream cylinder 17 is reduced. A U-packing 20 is provided between the downstream cylinder 17 and the piston 19.

  An upstream check valve 22 is provided at a tip portion inside the cylinder 15. The upstream check valve 22 allows the flow of water soap from the water soap container 2 into the cylinder 15 and prevents backflow. Specifically, the upstream check valve 22 has a hollow bush 23 provided with openings 23 a and 23 b at both ends, and is accommodated inside the bush 23, and has a diameter larger than that of the upstream opening 23 a of the bush 23. A large ball 24, a ball urging spring 25 that urges the ball 24 to the opening 23a of the bush 23, and one end of the ball urging spring 25 are locked and detachably attached to the opening 23b on the downstream side of the bush 23. It is comprised by the hollow bush lid | cover 26 with which it mounted | worn (refer FIG. 3). A protrusion 23 c is provided at the tip of the bush 23 of the upstream check valve 22, and the tip of the bush 23 including the protrusion 23 c is in contact with a step provided on the inner surface of the upstream cylinder 16. Is done. Further, the opening 23a of the bush 23 is provided with a notch 23d (slit) toward the downstream side (see FIG. 3). The notch 23d is for securing a large flow path for the soap, and even if the flow path is throttled by the upstream check valve 22, the notch 23d is sufficient. A flow path can be secured, and a desired amount of soap can be discharged without reducing the flow rate of soap.

  A piston biasing spring 27 is provided between the upstream check valve 22 and the piston 19. One end of the piston urging spring 27 is locked to a protrusion 23 c provided at the tip of the bush 23, and the other end is externally fitted to a protrusion 19 b provided on the upstream side of the piston 19. Thus, the piston urging spring 27 urges the piston 19 to the downstream side and urges the upstream check valve 22 to the upstream side.

  The tightening nut 29 is a hollow member. The body cover 11, the cylinder 15, the piston 19 and the like are integrally fixed by the tightening nut 29. Specifically, with the cylinder 15 and the piston 19 inserted into the main body cover 11, the male screw on the outer peripheral surface of the hollow tightening nut 29 and the female screw on the inner peripheral surface of the main body cover 11 are screwed together. Thus, the cylinder 15 and the piston 19 are fixed to the main body cover 11.

  The hand pressing part 21 moves the piston 19. Specifically, by pressing the hand pressing portion 21, the piston 19 is moved upstream, and when the hand pressing portion 21 is not pressed, the piston 19 is moved downstream by the biasing force of the piston biasing spring 27. Moved to the side.

  The hand pressing portion 21 includes a hand pressing portion main body 31, a hand pressing portion guide 32, and a hand pressing portion cover 33. The hand pressing portion main body 31 has a hollow shape, a downstream check valve 34 is inserted on the upstream side, and a cylindrical cap 30 is inserted on the downstream side. Specifically, as shown in FIG. 2, a male screw is formed on the outer peripheral surface of the cap 30, and a female screw is formed on the inner peripheral surface of the hand pressing portion main body 31. Then, the male screw on the outer peripheral surface of the cap 30 and the female screw on the inner peripheral surface of the hand pressing portion main body 31 are screwed together, and the cap 30 and the hand pressing main body 31 are fixed.

  Further, the tip portion of the hand pressing portion main body 31 to which the downstream check valve 34 is attached is inserted into the piston 19. Specifically, a male screw is formed on the outer peripheral surface of the distal end portion of the hand pressing portion main body 31, and a female screw is formed on the inner peripheral surface of the piston 19. Then, the female screw on the inner peripheral surface of the piston 19 and the male screw on the outer peripheral surface of the distal end portion of the hand pressing portion main body 31 are screwed together, so that the distal end portion of the hand pressing portion main body 31 is inserted into the piston 19. Is done.

  The downstream check valve 34 allows the flow of water soap from the cylinder 15 to the outlet of the water soap passage (the outlet of the cap 30) and prevents backflow. The downstream check valve 34 has the same structure as the upstream check valve 22 described above. That is, the downstream check valve 34 includes a hollow bush 23 provided with openings 23a and 23b at both ends, and a ball that is housed inside the bush 23 and has a larger diameter than the opening 23a on the upstream side of the bush 23. 24, a ball urging spring 25 for urging the ball 24 to the opening 23a of the bush 23, and one end of the ball urging spring 25 are latched and detachably attached to the opening 23b on the downstream side of the bush. It is comprised with the hollow bush cover 26 (refer FIG. 3). The distal end portion of the bush 23 of the downstream check valve 34 is brought into contact with a step portion provided on the inner surface of the piston 15 as shown in FIG.

  In this way, a passage through which the soap is passed is formed. Specifically, from the water soap container 2, the water soap tube 3, the hollow portion of the upstream cylinder 16, the hollow portion of the upstream check valve 22, the hollow portion of the downstream cylinder 17, the downstream check valve 34, the hand The hollow portion of the pressing body 31 and the hollow portion of the cap 30 form a passage through which the water soap passes (water soap passage), and the water soap passes from the tip portion (exit) of the cap 30 by passing through the water soap passage. Is discharged.

  Further, the opening 23a of the bush 23 is provided with a notch 23d (slit) toward the downstream side (see FIG. 3). As described above, the notch 23d is for securing a large flow path for the soap, and by providing the notch 23d, the flow path is narrowed by the downstream check valve 34. However, a sufficient flow path can be secured, and a desired amount of soap can be discharged without a decrease in the flow rate of soap. An O-ring 35 is provided between the inner peripheral surface of the hand pressing portion main body 31 and the outer peripheral surface of the cap 30. An O-ring 36 is also provided between the outer peripheral surface of the hand pressing portion main body 31 and the inner peripheral surface of the piston 19.

  The hand pressing portion cover 33 is formed so as to cover the hand pressing portion main body 31, and the hand pressing portion guide 32 is inserted between the hand pressing portion main body 31 and the hand pressing portion cover 33. The hand pressing portion guide 32 guides the movement of the hand pressing portion 21 when the hand pressing portion 21 is pressed. Specifically, the hand pressing portion guide 32 moves while sliding on the guide surface 11a whose diameter is reduced at the rear end portion (downstream side) of the main body cover 11 when the hand pressing portion 21 is pressed. To do. And it moves to the step part vicinity where the diameter of the hand pushing part guide 32 shown in FIG. 2 became small (refer FIG. 4).

  Next, the upstream check valve and the downstream check valve having the same structure as the upstream check valve will be described. FIG. 3 is a view showing a check valve used in the water soap feeder in one embodiment of the present invention.

  As shown in FIG. 3, the upstream check valve 22 and the downstream check valve 34 having the same structure as that of the upstream check valve 22 are configured such that the ball 24 extends from the opening 23 b at one end (downstream) of the bush 23. After the ball 24 is inserted, a ball biasing spring 25 that biases the ball 24 is inserted. In this state, the bush lid 26 is inserted into the opening 23 b on the downstream side of the bush 23. A male screw is formed on the outer peripheral surface of the bush lid 26, and a female screw is formed on the inner peripheral surface of the bush 23. Further, the bush lid 26 is provided with a guide portion 26a for externally fitting the ball biasing spring 25. Then, with the ball urging spring 25 fitted on the guide portion 26a, the female screw on the inner peripheral surface of the bush 23 and the male screw on the outer peripheral surface of the bush lid 26 are screwed together, so that the bush cover 26 is The bush 23 is detachably mounted. In this way, the bush lid 26 is provided with the guide portion 26a for fitting the ball urging spring 25, so that the guide portion 26a suppresses the deformation of the ball urging spring 25 and presses the hand pressing portion 21. It is possible to prevent the check valves 22 and 34 from opening when the water soap does not appear or when the check valves 22 and 34 are not intended to be opened.

  Next, the operation of the water soap feeder will be described with reference to FIG. FIG. 4 is a cross-sectional view showing a state in which the hand pressing part of the water soap feeder in one embodiment of the present invention is pressed.

  The state of the water soap supply device 1 shown in FIG. 2 is shifted to the state of the water soap supply device 1 shown in FIG. When the hand pressing portion 21 is pressed, the piston 19 is moved in the upstream direction against the piston biasing spring 27, the upstream check valve 22 is closed, and the downstream check valve 34 is opened. . Thus, the soap in the cylinder 15 between the upstream check valve 22 and the downstream check valve 34 passes through the hollow portion of the handhold main body 31 from the outlet of the soap soap passage (the outlet of the cap 30). Discharged.

  In this manner, the upstream check valve 22 causes a part of the ball 24 of the upstream check valve 22 to come into contact with the water soap passage on the inner surface of the cylinder 19, so that the water soap container 2 enters the cylinder 15. The flow of water soap is blocked. Also, the downstream check valve 34 opens the downstream check valve 34 by separating the ball 24 of the downstream check valve 34 from the opening 23a (see FIG. 3) of the downstream check valve 34. The soap in the cylinder 15 is discharged from the outlet of the soap soap passage (the outlet of the cap 30) through the hollow part of the downstream check valve 34 and the hollow part of the hand pressing part main body 31. At this time, since the opening 23a of the bush 23 of the downstream check valve 34 is provided with a notch 23d toward the downstream side, the notch 23d serves as a flow path for the soap. Even if the flow path of the water soap is throttled by the stop valve 34, a sufficient flow path can be secured, and a desired amount of water soap can be discharged from the outlet of the water soap passage without reducing the flow rate of the water soap. it can.

  Then, the state of the water soap supply device 1 shown in FIG. 4 is shifted to the state of the water soap supply device 1 shown in FIG. When the pressing of the hand pressing portion 21 is released, the piston 19 is moved in the downstream direction by the biasing force of the piston biasing spring 27, the upstream check valve 22 is opened, and the downstream check valve 34 is Closed. Thereby, the water soap in the water soap container 2 is sucked in, and the water soap can be accommodated in the cylinder 15 between the upstream check valve 22 and the downstream check valve 34.

  In this manner, the downstream check valve 34 causes a part of the ball 24 of the downstream check valve 34 to abut against the water soap passage on the inner surface of the piston 19, so that the outlet of the water soap passage from the cylinder 15. The flow of soap into the water is blocked. Further, the upstream check valve 22 opens the upstream check valve 22 by separating the ball 24 of the upstream check valve 22 from the opening 23a (see FIG. 3) of the upstream check valve 22, The water soap in the water soap container 2 can be accommodated in the cylinder 15 through the water soap tube 3 and the upstream check valve 22. At this time, since the opening 23a of the bush 23 of the upstream check valve 22 is provided with a notch 23d toward the downstream side, the notch 23d serves as a flow path for soap, Even if the flow path of the water soap is restricted by the stop valve 34, a sufficient flow path can be secured, and a desired amount of water soap can be accommodated in the cylinder 15 without reducing the flow rate of the water soap.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

Next, a modified example of the present invention will be described.
(1) In the present embodiment, it has been described that the water soap container 1, the water soap tube 3, the fixture 4, and the supply plug main body 5 constitute the water soap supply device 1, but the present invention is not limited thereto. The water soap container 1, the fixing metal fitting 4, and the supply plug main body 5 may constitute the water soap supply device 1, and the fixing metal fitting 4 and the supply plug main body 5 constitute the water soap supply device 1. Also good.

  (2) In the check valves 22 and 34 of the present embodiment, the bush lid 26 is attached to and detached from the bush 23 by screwing the female screw on the inner peripheral surface of the bush 23 and the male screw on the outer peripheral surface of the bush lid 26. Although not limited to this, as shown in FIG. 5, a claw portion 26b is formed on the outer peripheral surface of the bush lid 26, and a hole portion 23e is formed on the side surface of the bush 23. The bush lid 26 is detachably attached to the bush 23 by inserting the bush lid 26 into the opening 23 b of the bush 23 and engaging the hole 23 e on the side surface of the bush 23 and the claw portion 26 b on the outer peripheral surface of the bush lid 26. You may make it mount on.

  In this way, the ball 24 is placed on the ball urging spring 25 in a state where the ball urging spring 25 is externally fitted to the guide portion 26a, and the bush lid 26 on which the guide portion 26a is provided in this state. Since the claw 26b is fixed to the hole 23e of the bush 23 by snap fitting, the ball biasing spring 25 can be attached straight without being twisted.

It is a top view of the water soap feeder in one embodiment of the present invention. It is a partial cross section figure of the water soap supply device in one embodiment of the present invention. It is a figure which shows the non-return valve used for the water soap supply apparatus in one Embodiment of this invention. It is sectional drawing which shows the state by which the hand pressing part of the sulphur soap feeder in one Embodiment of this invention is pressed. It is a figure which shows the non-return valve used for the water soap supplier in the modification of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water soap supply device 2 Water soap container 3 Water soap tube 4 Fixing metal fitting 5 Supply plug body 15 Cylinder 16 Upstream cylinder 17 Downstream cylinder 19 Piston 21 Hand pushing part 22 Upstream check valve 23 Bush 24 Ball 25 Ball urging Spring 26 Bush lid 26a Guide portion 27 Piston biasing spring 34 Downstream check valve

Claims (5)

A water soap supply device for supplying water soap contained in a container through a water soap passage,
A cylinder provided in the water soap passage;
A hollow piston provided in the cylinder and movable relative to the cylinder;
A hand pushing part for moving the piston;
An upstream check valve that is provided upstream from the piston, permits the inflow of soap from the container into the cylinder, and prevents backflow;
A downstream check valve that is provided downstream from the upstream check valve, allows outflow of soap from the cylinder to the outlet of the soap soap passage, and prevents backflow;
A piston biasing spring that is provided on the upstream side of the piston and biases the piston toward the hand pressing part;
The upstream check valve and / or the downstream check valve are:
A hollow bush with openings at both ends;
A ball housed in the bush and having a diameter larger than the upstream opening of the bush;
A ball biasing spring that biases the ball toward the opening of the bush;
A hollow bushing lid that engages one end of the ball biasing spring and is detachably attached to an opening on the downstream side of the bush;
By causing a part of the ball of the upstream check valve to abut the water soap passage on the inner surface of the cylinder, the flow of water soap from the container into the cylinder is prevented and / or the downstream A part of a ball of the side check valve is brought into contact with the water soap passage on the inner surface of the piston, thereby preventing the flow of water soap from the cylinder to the outlet of the water soap passage. Water soap feeder.   The water soap supply device according to claim 1, further comprising a container for storing the water soap.   The water soap supply device according to claim 1 or 2, wherein a cutout toward the downstream side is provided in the upstream opening of the bush.   The water soap supply device according to any one of claims 1 to 3, wherein the bush lid is provided with a guide portion for externally fitting the ball biasing spring. 5. The water soap according to claim 4, wherein the bush and the bush lid are configured such that a claw provided in the bush lid is fitted into a hole provided in the bush by a snap fit. Feeder.

Images