JP2018102697A - Liquid discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid discharge device suppressing scattering of liquid sent out by the operation of a pump mechanism in a state that a discharge port is closed.SOLUTION: A liquid discharge device 1 includes: a tank 2 for accumulating liquid; a discharge part 5 having a discharge port 50 for discharging liquid S; and a pump mechanism 4 sending out liquid accumulated in the tank to the discharge part. There is also provided an escape route D which guides to the tank, the liquid sent out by the operation of the pump mechanism in a state that the discharge port is closed. With this, it is possible to suppress scattering of the liquid sent out by the operation of the pump mechanism in a state that the discharge port is closed.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a fluid ejection device.

  Conventionally, a soap dispenser that discharges a soap solution is known (for example, see Patent Document 1).

  The conventional soap dispenser disclosed in Patent Document 1 has an attachment tube that is inserted and fixed in an attachment hole formed in a counter of a hand-washing machine, and is fixed to the counter. Such a soap dispenser includes a sensor that senses the movement of the user's hand and an electric pump that operates when a detection signal is input from the sensor. In such a conventional soap dispenser, when the sensor detects the movement of the user's hand, a detection signal is input to the electric pump to operate the electric pump. Thereby, the water soap liquid in the tank is sucked up, and the water soap liquid is discharged from the discharge port of the discharge nozzle.

JP 2006-271404 A

  In such a conventional soap dispenser, for example, when the pump mechanism is operated in a state where the discharge port of the discharge nozzle is closed by the user's hand, the water delivered by the pump action is used. Soap may splash.

  An object of the present invention is to provide a fluid ejection device that suppresses the scattering of the fluid sent out by operating a pump mechanism in a state where the ejection port is closed.

  The fluid ejection device according to the present invention is a fluid ejection device that ejects a fluid, the tank that stores the fluid, a discharge section that has a discharge port that discharges the fluid, and the fluid stored in the tank. A discharge mechanism that guides the fluid, which is sent out by operating the pump mechanism in a state where the discharge port is closed, to the tank. .

  According to the present invention as described above, when the pump mechanism is operated in a state where the discharge port is closed, the fluid sent by the pump mechanism passes through the escape path and is returned to the tank. That is, since the escape path is provided, the fluid that has lost its course due to the discharge port being blocked passes through the escape path and is returned to the tank, so that the fluid is prevented from scattering.

  Further, since the fluid escapes through the discharge path and is returned to the tank in a state where the discharge port is closed, the fluid is not discharged from an unexpected place.

  Moreover, in the fluid discharge device of the present invention, it is preferable to have an air vent path that communicates the inside and outside of the tank. According to such a configuration, when the fluid passes through the escape path and returns to the tank, the air in the tank passes through the air vent path and is appropriately discharged to the outside. Therefore, the fluid is smoothly returned to the tank.

  In the fluid discharge device of the present invention, the discharge part includes an inner cylinder part having a discharge port and an outer cylinder part covering the outer periphery of the inner cylinder part, and the escape path penetrates the peripheral wall of the inner cylinder part. It is preferable that the fluid passing through the penetration part is guided to the tank while passing through the gap between the inner cylinder part and the outer cylinder part. According to such a configuration, when the pump mechanism is operated in a state where the discharge port is closed, the fluid sent out by the pump mechanism passes through the escape path and is returned to the tank. When the pump mechanism is operated in the closed state, a fluid ejection device that can suppress the scattering of fluid is realized.

  In the fluid ejection device of the present invention, it is preferable that the penetrating portion is a slit that cuts out a part of the edge constituting the ejection port and extends upstream in the fluid ejection direction. That is, since the slit is provided continuously to the discharge port, when the pump mechanism is operated with the discharge port blocked, the slit is not opposed to the flow sent by the pump mechanism. Through the tank. Therefore, even when the pump mechanism is operated with the discharge port blocked, an excessive load is not applied to the pump mechanism.

  In the fluid discharge device of the present invention, the fluid is a mixed fluid generated by mixing the first fluid and the second fluid, and has a mixing chamber for generating the mixed fluid. It is preferable that it is located inside the part. Here, when the first fluid is a liquid soap solution and the second fluid is air, a mousse-like soap solution is generated as a mixed fluid. Therefore, the convenience is improved.

  According to the fluid discharge device of the present invention, it is possible to prevent the fluid sent out by the pump mechanism from operating while the discharge port is closed.

It is a perspective view which shows the fluid discharge apparatus which concerns on embodiment of this invention. FIG. 3 is a top view showing a state where a cover is opened in the fluid ejection device. (A) is sectional drawing which shows a part of said fluid discharge apparatus, (B) is sectional drawing which follows the II line | wire in (A). It is a disassembled perspective view which shows a part of member which comprises the said fluid discharge apparatus. It is a figure which expands and shows the principal part of FIG. It is a figure which shows the discharge part of the said fluid discharge apparatus, (A) is a perspective view which shows a partial cross section, (B) is the top view seen from the discharge outlet side. It is a perspective view which shows the discharge part of the said fluid discharge apparatus. (A) is a figure which shows typically the state by which the discharge outlet was obstruct | occluded in the said fluid discharge apparatus, (B) demonstrates a mode that a fluid is guided to a tank in the state of (A). It is a figure for doing.

  Hereinafter, a soap dispenser 1 (fluid ejection device) according to an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the soap dispenser 1 of the present embodiment is a mousse-like soap solution produced by mixing a liquid soap solution S (first fluid) and air A (second fluid). (Hereinafter sometimes referred to as “mousse body M”). The soap dispenser 1 is fixed to a penetration portion H that vertically passes through an installation table K such as a washstand, for example, and supplies a mousse body M when a user performs hand washing or the like. FIG. 1 is a perspective view showing a soap dispenser 1 (fluid ejection device) according to the present embodiment. FIG. 2 is a top view showing a state in which the cover 83 is opened in the soap dispenser 1.

  As shown in FIGS. 1 and 2, the soap dispenser 1 includes a soap tank 2 (tank) for storing soap liquid S, a fluid path unit 3 having a plurality of fluid paths extending vertically, and a fluid. A pump mechanism 4 connected to the lower end side of the path unit 3 and sending the soap solution S and air A upward, and a mixing chamber 54 for mixing the soap solution S and air A to generate a mousse body M. A discharge portion 5 having a discharge port 50 for discharging the mousse body M generated in the chamber 54, and a first tube 61 (for transferring the soap solution S and air A sent out by the fluid path unit 3 to the discharge portion 5. 2) and a second tube 62 (shown in FIG. 2), and a backflow tube 63 (shown in FIG. 2) for communicating the inside and outside of the soap tank 2 to guide the mousse body M to the soap tank 2. Operate pump mechanism 4 Comprising the order of the sensor 7, the case body 8 for supporting the sensor 7 and the discharge unit 5, a. The sensor 7 is configured to sense the movement of the user's hand.

  The soap dispenser 1 is fixed to the installation base K at an intermediate position of the fluid path unit 3 (upper end portion of a fluid path portion 30 to be described later) so that a plurality of fluid paths extend in the vertical direction (vertical direction). . Moreover, the discharge part 5 is extended and provided in the horizontal direction orthogonal to an up-down direction.

  As shown in FIGS. 3 and 4, the fluid path unit 3 includes a fluid path section 30 having through holes 3A, 3B, 3C, and 3D (shown in FIG. 3B) that function as a plurality of fluid paths, Between the lower path connecting member 31 (shown in FIG. 3A) for connecting the path portion 30 and the lower ends of the tubes 61, 62, 63, and between the fluid path portion 30 and the lower side connecting member 31. And a packing 32 (shown in FIG. 3A) made of an interposed elastic body. In a state where the soap dispenser 1 is fixed to the installation table K, the lower connection member 31 is located above the upper surface of the installation table K. In this embodiment, each tube 61, 62, 63 is made of a material having rubber elasticity. In FIG. 3A, the cover 83 is omitted.

  As shown in FIGS. 1, 3 (A), and 4, the fluid path section 30 has a fluid path section body having four through holes 3 A, 3 B, 3 C, and 3 D (a plurality of fluid paths) extending vertically. 301, a soap tank connecting portion 302 (shown in FIG. 1) provided on the lower end side of the fluid path main body 301 and connected to the soap tank 2, and a lower side provided on the upper end side of the fluid path main body 301. The side connecting member 31 and the receiving portion 303 that supports the packing 32 are integrally formed. The fluid path portion 30 is a resin molded product obtained by injection molding.

  The fluid path portion main body 301 is configured by forming four through holes 3A, 3B, 3C, and 3D in a solid cylindrical portion. The four through holes 3A, 3B, 3C, and 3D discharge the first fluid passage path 3A that allows the soap solution S to pass through, the second fluid passage path 3B that allows the air A to pass through, and the air A ′ in the soap tank 2. An air discharge path 3C (air vent path) and a reverse flow path 3D for guiding the mousse body M that has passed through a slit D1 (described later) formed in the discharge port 50 to the soap tank 2. Configured. The four through holes 3A, 3B, 3C, and 3D are configured so that the inside and the outside communicate with each other.

  As shown in FIG. 1, the soap tank connecting portion 302 has the pump mechanism 4 attached at a position adjacent to the fluid path portion main body 301. Then, when the pump mechanism 4 is operated, the suction tube T that sucks up the soap solution S stored in the soap tank 2 sucks up the soap solution S and discharges the soap solution S through the second fluid passage 3B. Feed into the mixing chamber 54 of the section 5. At the same time, air A is sent into the mixing chamber 54 from the first fluid passage 3A.

  As shown in FIGS. 3A and 4, the receiving portion 303 is a lower surface 304 having a larger diameter than the fluid path portion main body 301 around the center of the fluid path portion main body 301 and a part of the lower surface 304. The sensor 7 is installed upright from the first bottom surface 304 </ b> A and is installed on a receiving tray 305 that houses the lower connection member 31 and the packing 32, and a second bottom surface 304 </ b> B that is another part of the lower surface 304. And a sensor installation unit 306.

  The saucer portion 305 has a first bottom surface 304A and a peripheral plate 307 erected from the first bottom surface 304A. In the first bottom surface 304A, a first fluid passage path 3A, a second fluid passage path 3B, an air discharge path 3C, and a backflow path 3D are opened. As shown in FIG. 3A, the tray part 305 is formed so as to expose the opening on the upper side of the air discharge path 3C in a state in which the lower connection member 31 and the packing 32 are accommodated.

  As shown in FIG. 4, the lower end side connection member 31 includes a connection member main body 310 in which three through holes 31A, 31B, and 31D are formed in a solid member having a predetermined thickness, and each of the connection member main body 310. The three connecting member locking projections 311 projecting upward from the peripheral edges of the through holes 31A, 31B, and 31D are integrally formed. The three through holes 31A, 31B, and 31D include a first fluid communication path 31A that communicates with the first fluid passage path 3A, a second fluid communication path 31B that communicates with the second fluid passage path 3B, and a backflow path 3D. And a reverse flow communication path 31 </ b> D communicated with each other. The three through holes 31A, 31B, and 31D are configured so that the inside and the outside communicate with each other.

  The three connection member locking projections 311 connect the lower ends 61A, 62A, 63A of the first tube 61, the second tube 62, and the backflow tube 63, as shown in FIGS. This is for press-fitting to the member main body 310. Each connection member locking projection 311 is configured to have a tapered surface (not shown) such that each base end portion has a larger diameter than each tip end portion.

  The tapered surface of each connection member locking projection 311 is formed in such a size that a frictional force is generated between each tube 61, 62, 63 and the inner surface of each tube 61, 62, 63. Has been. Due to the frictional force generated in this way, the connection member locking projections 311 are configured to lock their inner surfaces in a state where the tubes 61, 62, 63 are press-fitted.

  Such a lower end side connection member 31 is configured such that the lower end portion 61A of the first tube 61 is engaged with the connection member engagement projection 311 so that the first tube 61, the first fluid passage 3A, and the first fluid communication are provided. The path 31A is communicated with each other, and the lower end 62A of the second tube 62 is locked to the connection member locking projection 311, whereby the second tube 62, the second fluid passage path 3B, and the second fluid communication path 31B are connected. The backflow tube 63, the backflow path 3D, and the backflow communication path 31D are communicated with each other by connecting the bottom end 63A of the backflow tube 63 to the connecting member locking projection 311. Yes.

  As shown in FIG. 4, the packing 32 has three packing through holes 32 </ b> A, 32 </ b> B, 32 </ b> D at positions that communicate with the three through holes 31 </ b> A, 31 </ b> B, 31 </ b> D formed in the lower end side connection member 31. Is formed.

  In a state where the lower end side connection member 31 and the packing 32 are accommodated in the tray part 305 of the fluid path part 30, as shown in FIG. 4, the fluid path part main body 301, the packing 32, and the lower end side connection are arranged from below. The members 31 are arranged in order. Further, in this state, the first fluid passage path 3A of the fluid path section main body 301, the first fluid communication path 31A of the lower end side connecting member 31 and the packing through-hole 32A are connected to each other so as to communicate vertically. The second fluid passage path 3B of the head part body 301, the second fluid communication path 31B of the lower end side connection member 31 and the packing through-hole 32B are connected to each other so as to communicate vertically, and the reverse flow path 3D of the fluid path part body 301 The reverse flow communication path 31D of the lower end side connection member 31 and the packing through hole 32D are connected to each other so as to communicate vertically.

  As shown in FIGS. 5 to 7, the discharge unit 5 has an annular part 51 having a discharge port 50 and a mixing chamber 54 for mixing the soap solution S and air A to generate the mousse body M. A chamber 52, a mesh portion 53 supported between the annular portion 51 and the mixing chamber 52, and upper ends 61B, 62B, 63B of the mixing chamber 52 and the tubes 61, 62, 63 (each upper end 62B and 63B are configured to include an upper end side connection member 55 for connecting (not shown). The discharge part 5 is assembled in the discharge direction of the mousse body M in the order of the upper end side connecting member 55, the mixing chamber body 52, and the annular part 51. In the following, the downstream side in the discharge (advance) direction of the mousse M may be referred to as “front”, and the upstream side may be referred to as “rear”. The discharge direction of the moose body M is the same direction as the axial direction of the discharge unit 5.

  The annular part 51 includes an inner cylinder part 510 having a spout 510a of the mousse body M that has passed through the mesh part 53, and an outer cylinder part 511 that covers the outer periphery of the inner cylinder part 510.

  In the present embodiment, the discharge port 50 is an opening exposed to the outside in order to discharge the mousse body M. As shown in FIG. 5 and the like, the ejection port 510a is located behind the ejection port 50. That is, the jet outlet 510a is not exposed to the outside.

  As shown in FIG. 6A, the inner cylinder portion 510 is provided at a position communicating with the mesh accommodating portion 512 that accommodates the mesh portion 53 and the front side of the mesh accommodating portion 512, and the spout of the mousse body M A first peripheral wall 513 constituting 510a, a second peripheral wall 514 that covers the outer periphery of the first peripheral wall 513 and has a discharge port 50 at the front end, a connecting portion 515 that connects the first peripheral wall 513 and the second peripheral wall 514, Are integrally formed. The first peripheral wall 513 and the second peripheral wall 514 are provided coaxially. The first peripheral wall 513 and the second peripheral wall 514 are provided coaxially with the outer cylinder portion 511. Further, the front end portion 513a of the first peripheral wall 513 is located on the rear side of the front end portion 514a of the second peripheral wall 514, and the rear end portion 513b of the first peripheral wall 513 is more than the rear end portion 514b of the second peripheral wall 514. Located on the front side. Further, the rear end 513 b of the first peripheral wall 513 is continuous with the inner surface of the second peripheral wall 514.

  The first peripheral wall 513 has a first inner surface 513A that is inclined so as to gradually approach the center of the discharge section 5 as it goes forward from the rear end, and the first inner surface 513A has a front dimension so that the radial dimension is substantially equal. And a second inner surface 513 </ b> B formed to extend.

  As shown in FIGS. 6 (A), 6 (B), and 7, the second peripheral wall 514 has a slit D <b> 1 extending rearward by cutting out a part of the edge constituting the discharge port 50. The rear end portion D1b of the slit D1 (penetrating portion) and the front end portion 513a of the first peripheral wall 513 have substantially the same position in the discharge direction (the axial direction of the discharge portion 5) (position where the relationship between the two is flush). It is formed to become. The slit D1 functions as a “mousse body first path D1” that constitutes a part of a later-described escape path D (shown in FIG. 6A).

  The outer cylindrical portion 511 is formed such that the front end portion 511a is substantially in the same position as the front end portion 514a of the second peripheral wall 514 in the discharge direction (the axial direction of the annular portion 51), and the rear end portion 511b is The rear end portion 514b of the second peripheral wall 514 is formed so that the position in the discharge direction (the axial direction of the discharge portion 5) is substantially the same position (position where the relationship between the two is flush).

  Further, as shown in FIG. 6A, a mixing chamber body 52 (described later) is provided in the space S on the rear side between the outer cylindrical portion 511 and the second peripheral wall 514 of the inner cylindrical portion 510 from the rear. A front overhang portion 522 is inserted. Further, a gap D <b> 21 is formed between the front projecting portion 522 and the second peripheral wall 514 in a state where the front projecting portion 522 is inserted between the outer cylindrical portion 511 and the second peripheral wall 514 of the inner cylindrical portion 510. ing. The gap D21 is continuous with a space D22 on the front side between the outer cylinder portion 511 and the second peripheral wall 514 of the inner cylinder portion 510. The gap D21 and the space D22 function as a “mousse body second path D2” that constitutes a part of the escape path D described later.

  As shown in FIG. 6A, the mixing chamber body 52 has a substrate 520, a mixing chamber main body 521 that protrudes rearward from the substrate 520 and has a mixing chamber 54 therein, and a cylindrical shape forward from the substrate 520. And a front projecting portion 522 that is inserted between the outer cylindrical portion 511 and the second peripheral wall 514 of the inner cylindrical portion 510.

  The mixing chamber main body 521 is provided so as to protrude rearward from the substrate 520 and has a cylindrical large-diameter portion 523 centered on the center of the discharge portion 5 and a large-diameter provided protruding backward from the large-diameter portion 523. And a cylindrical small-diameter portion 524 having a smaller diameter than the portion 523. The large diameter portion 523 and the small diameter portion 524 are provided coaxially. The mixing chamber 54 is composed of a space that continues from the small diameter portion 524 to the substrate 520 through the large diameter portion 523, and the front and rear ends of the mixing chamber 54 are opened so that the inside and the outside communicate with each other. The mixing chamber 54 is a space for mixing the soap liquid S and the air A to generate the mousse body M.

  The mixing chamber body 52 is provided with a mousse body third path D3 that allows the mousse body M to pass therethrough and constitutes a part of the escape path D described later. The mousse body third path D3 is formed so as to penetrate the substrate 520 and the mixing chamber main body 521, and includes a gap between the outer cylinder part 511 and the second peripheral wall 514 of the inner cylinder part 510. It is formed so as to communicate with the two paths D2.

  Such a mixing chamber body 52 has a mousse body third path in the substrate 520 in a state where the front overhanging portion 522 is inserted between the outer cylindrical portion 511 of the annular portion 51 and the second peripheral wall 514 of the inner cylindrical portion 510. A portion on the inner side of D3 (on the central axis side of the discharge portion 5) is configured to cover the opening on the rear side of the mesh accommodating portion 512 of the annular portion 51.

  As shown in FIGS. 6A and 7, the upper end side connection member 55 is erected in a cylindrical shape from a plate-like portion 552 having three discharge-side locking projections 551 and the periphery of the plate-like portion 552. The first upright portion 553 and the second upright portion 554 provided inside the first upright portion 553 are integrally formed. The three discharge-side locking projections 551 are provided in a cylindrical shape, and are for press-fitting and locking the upper end portions 61B, 62B, and 63B of the first tube 61, the second tube 62, and the backflow tube 63. Of the three discharge-side locking projections 551, two that lock the first tube 61 and the second tube 62 are provided inside the second standing portion 554, and the backflow tube 63 is the first standing configuration. It is provided between the portion 553 and the second standing portion 554.

  Each discharge side latching protrusion 551 is configured to have a tapered surface 551A such that the base end portion has a larger diameter than the tip end portion. The tapered surface 551A of each discharge-side locking projection 551 is formed to have such a size as to generate a frictional force with each inner surface of each tube 61, 62, 63 in a state where each tube 61, 62, 63 is press-fitted. Has been. Due to the frictional force generated in this way, the discharge side locking projections 551 are configured to lock their inner surfaces in a state where the tubes 61, 62, 63 are press-fitted.

  The first standing portion 553 is configured such that the front end portion 553 a contacts the substrate 520 of the mixing chamber body 52 while the large-diameter portion 523 of the mixing chamber body 52 is externally fitted.

  The second standing portion 554 is configured such that the front end portion 554 a contacts the rear side surface of the large diameter portion 523 of the mixing chamber body 52 while the small diameter portion 524 of the mixing chamber body 52 is externally fitted. .

  In such a discharge portion 5, the upper ends 61 </ b> B and 62 </ b> B of the first tube 61 and the second tube 62 are connected by the discharge side locking projection 551, and the soap solution S and the second tube 62 are connected by the first tube 61. Thus, the air A is transferred to the mixing chamber 54. Further, the upper end 63B of the backflow tube 63 is connected by the discharge side locking projection 551, and the mousse body M is connected to the backflow path 3D of the fluid path section main body 301 and the lower end side from the escape path D by the backflow tube 63. The member 31 is transferred to the soap tank 2 via the reverse flow communication path 31D of the member 31 and the packing through hole 32D.

  Moreover, in the discharge part 5, when the pump mechanism 4 operates in a state where the discharge port 50 is closed, the mousse body M passes the mousse body first path D1 and the mousse body second path D2. The mousse body second path D3 is reached, wraps around the mousse body fourth path D4 located between the first standing part 553 and the second standing part 554, and enters the backflow path 3D via the backflow tube 63. To reach.

  The first tube 61 is connected to the first fluid communication path 31 </ b> A of the lower end side connection member 31 with the lower end portion 61 </ b> A being engaged with the connection member engagement projection 311 of the lower end side connection member 31, and the upper end portion 61 </ b> B is The discharge portion 5 is locked to the discharge side locking protrusion 551 and connected to the mixing chamber 54 of the discharge portion 5. The second tube 62 is connected to the second fluid communication path 31 </ b> B of the lower end side connection member 31 with the lower end portion 62 </ b> A being engaged with the connection member engagement protrusion 311 of the lower end side connection member 31, and the upper end portion 62 </ b> B is The discharge portion 5 is locked to the discharge side locking protrusion 551 and connected to the mixing chamber 54 of the discharge portion 5. The backflow tube 63 has a lower end 63A engaged with the connection member engagement projection 311 of the lower end side connection member 31 and connected to the reverse flow communication path 31D of the lower end side connection member 31, and the upper end 63B is discharged. The discharge side locking projection 551 of the portion 5 is locked and connected to the escape path D of the discharge portion 5.

  As shown in FIGS. 1 and 3A, the case body 8 has a cylindrical peripheral wall 81 that is externally fitted to the peripheral plate 307 of the receiving portion 303, and a bowl-like shape by notching a part of the upper end of the peripheral wall 81. And a base 80 having a hook-like portion 82 that extends to the base 80 and a cover 83 that covers the opening of the base 80. The upper and lower positions of the lower end of the peripheral wall 81 and the lower end of the peripheral plate 307 are substantially the same position.

  The hook-shaped part 82 is provided so that the upper part is opened, and an attachment hole 8a for attaching the discharge part 5 is formed at the tip part. The attachment hole 8a is formed of a through hole formed so as to open downward.

  In such a soap dispenser 1, as shown in FIG. 1, when the sensor 7 senses the movement of the user's hand, the pump mechanism 4 is driven for a predetermined time. Then, the soap solution S stored in the soap tank 2 is sucked up by the suction tube T, and passes through the packing through-hole 32A, the first fluid communication path 31A, the first fluid passage path 3A, and the first tube 61 to mix the mixing chamber. 54. At the same time, air A is fed into the mixing chamber 54 through the packing through-hole 32B, the second fluid communication path 31B, the second fluid passage path 3B, and the second tube 62. The soap solution S and air A thus fed into the mixing chamber 54 are mixed to generate a mousse body M which is a mixed fluid. The mousse body M is transferred from the mixing chamber 54 and discharged from the discharge port 50.

  Here, for example, as shown in FIG. 8A, when the pump mechanism 4 is operated in a state where the discharge port 50 is closed by the user's hand, for example, as shown in FIG. 8B. As described above, the mousse body M passes through the mousse body first path D1, sequentially passes through the mousse body second path D2, the mousse body third path D3, and the mousse body fourth path D4. It passes through the reverse flow communication path 31 </ b> D of the lower end side connection member 31, the packing through hole 32 </ b> D, and the reverse flow path 3 </ b> D and is transferred to the soap tank 2. That is, the escape path D in the present embodiment refers to the mousse body first path D1, the mousse body second path D2, the mousse body third path D3, the mousse body fourth path D4, the backflow tube 63, and the lower end side connection member 31. The backflow communication path 31D, the packing through-hole 32D, and the backflow path 3D are configured.

  According to this embodiment, there are the following effects. That is, when the pump mechanism 4 operates with the discharge port 50 closed, the mousse body M delivered by the pump mechanism 4 passes through the escape path D and is returned to the soap tank 2 (tank). In other words, since the escape route D is provided, the mousse body M that has lost its course due to the discharge port 50 being blocked is returned to the soap tank 2 through the escape route D. Scattering is suppressed.

  Further, since the mousse body M (fluid) passes through the escape route D and is returned to the soap tank 2 (tank) in a state where the discharge port is closed, the mousse body is not discharged from an unexpected place. .

  Moreover, it has the air discharge path | route 3C (air vent path | route) which connects the inside and outside of the soap tank 2 (tank). According to such a configuration, when the mousse body M passes through the escape path D and is returned to the soap tank 2, the air A ′ in the soap tank 2 passes through the air discharge path 3C and is appropriately disposed outside. Discharged. Accordingly, the mousse body M is smoothly returned to the soap tank 2.

  The discharge part 5 includes an inner cylinder part 510 having an outlet 50 and an outer cylinder part 511 that covers the outer periphery of the inner cylinder part 510, and the escape path D is a second peripheral wall 514 of the inner cylinder part 510. The soap tank 2 (tank) is provided with a slit D1 (penetrating portion) that passes through the (peripheral wall) and the mousse body M that has passed through the slit D1 passes through the gap between the inner cylindrical portion 510 and the outer cylindrical portion 511. To guide. According to such a configuration, when the pump mechanism 4 is operated in a state where the discharge port 50 is closed, the mousse body M sent out by the pump mechanism 4 passes through the escape path D and the soap tank 2. Therefore, the soap dispenser 1 (fluid discharge device) capable of suppressing the mousse body M from being scattered when the pump mechanism 4 is operated in a state where the discharge port 50 is closed can be realized. .

  In addition, the slit D <b> 1 (penetrating portion) cuts out a part of the edge constituting the discharge port 50 and extends upstream in the discharge direction of the mousse body M. That is, since the slit D1 is provided continuously to the discharge port 50, the mousse body M is sent out by the pump mechanism 4 when the pump mechanism 4 operates with the discharge port 50 closed. It is transferred to the soap tank 2 (tank) through the slit D1 without countering the flow. Therefore, even when the pump mechanism 4 is operated with the discharge port 50 blocked, an excessive load is not applied to the pump mechanism 4.

  The fluid has a liquid soap solution S (first fluid) and air A (second fluid), and a mixing chamber 54 for mixing the soap solution S and air A to generate a mixed fluid is provided. The mixing chamber 54 is located inside the discharge unit 5. Here, when the first fluid is a liquid soap solution S and the second fluid is air A, a mousse-like soap solution is generated as a mixed fluid. Therefore, the convenience is improved.

  In addition, this invention is not limited to the said embodiment, Other structures etc. which can achieve the objective of this invention are included, The modification as shown below is also contained in this invention.

  In the above-described embodiment, the discharge unit 5 has a slit D1 (through portion) that extends rearward (upstream in the discharge direction) by cutting out a part of the edge constituting the discharge port 50. However, the present invention is not limited to this. The discharge part 5 may have a hole penetrating the second peripheral wall 514 instead of the slit D1.

  Moreover, in the said embodiment, the fluid path | route unit 3 has four through-holes 3A, 3B, 3C, 3D, and the through-hole 3C serves as an air discharge path for discharging air A 'in the soap tank 2. Although functioning, the present invention is not limited to this. The through hole 3 </ b> C may function as a supply path for supplying the soap solution S to the soap tank 2. In this case, the soap solution S is supplied to the soap tank 2 through the supply path. When the soap liquid S is replenished to the soap tank 2, since the pump mechanism 4 is not operating, the air A ′ in the soap tank 2 may be appropriately discharged through the backflow path 3D. . That is, when the soap liquid S is replenished to the soap tank 2 (when the pump mechanism 4 is not operating), the through hole 3D functions as an air discharge path, and when the pump mechanism 4 is operating, You may be comprised so that it may function as a backflow path | route. In other words, one through hole 3D may be used as both a supply path and an air discharge path.

  Moreover, in the said embodiment, the fluid path | route unit 3 has four through-holes 3A, 3B, 3C, and 3D, and each of these through-holes passes the 1st fluid passage path 3A which allows the soap liquid S to pass through, and air. The second fluid passage path 3B for passing A, the air discharge path 3C for discharging the air A ′ in the soap tank 2, and the mousse body M that has passed through the slit D1 formed in the discharge port 50 are passed through the soap tank 2 However, the present invention is not limited to this. The fluid path unit may further include a supply path. That is, the fluid path unit may be configured to have a total of five through holes.

  In this case, when the soap liquid S is replenished to the soap tank 2, the cover 83 may be opened and the soap liquid S may be poured into the tray part 305. Since the upper opening of the supply path (not shown) is exposed, the soap liquid S is supplied to the soap tank 2 through the supply path when the soap liquid S is poured into the tray part 305. The Accordingly, the air A ′ in the soap tank 2 may be appropriately discharged through the air discharge path 3C.

  Moreover, in the said embodiment, although the soap dispenser 1 was set as the structure which supplies the mousse body M (mixed fluid), it is not limited to this. What is supplied by the soap dispenser may not be the mousse body M. For example, the liquid soap solution S itself may be supplied, or for example, alcohol for disinfection other than the liquid soap solution S may be used. Thus, when what is supplied is not a mixed fluid, the mixing chamber 54 may be omitted.

  Moreover, in the said embodiment, although the 1st fluid was set as the soap liquid S and the 2nd fluid was set as the air A, it is not limited to this, For example, liquids, such as water and a drink, as a 1st fluid And a gas such as oxygen or nitrogen may be used as the second fluid.

  In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but with respect to the embodiments described above without departing from the spirit and scope of the invention. Various modifications can be made by those skilled in the art in terms of shape, material, quantity, and other detailed configurations. Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

1 Soap dispenser (fluid discharge device)
2 Soap tank (tank)
4 Pump mechanism 5 Discharge section 50 Discharge port 54 Mixing chamber 3C Air discharge path (air vent path)
510 inner cylinder part 511 outer cylinder part 514 2nd surrounding wall (peripheral wall)
A Air (second fluid)
D Escape route D1 Slit, mousse body first route (penetrating part)
D2 Moose body second path (gap between the outer cylinder part and the inner cylinder part)
M mousse body (mixed fluid)
S Soap liquid (first fluid)

Claims (5)

A fluid discharge device for discharging a fluid,
A tank for storing the fluid;
A discharge part having a discharge port for discharging the fluid;
A pump mechanism for sending the fluid stored in the tank to the discharge unit,
A fluid discharge apparatus comprising: an escape path for guiding the fluid sent out by operating the pump mechanism in a state where the discharge port is closed to the tank.   The fluid ejection device according to claim 1, further comprising an air vent path communicating between the inside and the outside of the tank. The discharge part includes an inner cylinder part having a discharge port, and an outer cylinder part covering the outer periphery of the inner cylinder part,
The escape path includes a penetrating portion that penetrates the peripheral wall of the inner cylindrical portion, and the tank passes through the gap between the inner cylindrical portion and the outer cylindrical portion while allowing the fluid that has passed through the penetrating portion to pass through the tank. The fluid ejecting apparatus according to claim 1, wherein the fluid ejecting apparatus is guided to the center.   The fluid ejecting apparatus according to claim 3, wherein the penetrating portion is a slit that cuts out a part of an edge constituting the ejection port and extends upstream in the fluid ejection direction. The fluid is a mixed fluid generated by mixing the first fluid and the second fluid;
A mixing chamber for generating the mixed fluid;
The fluid ejection device according to any one of claims 1 to 4, wherein the mixing chamber is located inside the ejection unit.

Images