JP4162576B2 - Attachment for mixing - Google Patents

Description

  The present invention relates to a mixing attachment that mixes a mixing medicine with raw water and flows it out together with the raw water, and a medicine spraying device to which the mixing attachment is integrally attached.

  For example, in a spraying device such as a shower device, a chemical such as a bathing agent is added and mixed as a mixing agent to the raw water supplied via a pipe such as a hose, and the raw water can be sprayed from the spraying device together with the mixing agent. An attached attachment is disclosed (for example, Patent Document 1).

As shown in FIG. 8, the attachment described in Patent Document 1 includes a double structure in which an internal container 51 serving as a medicine storage chamber is provided inside an external container 50. It is used by attaching to the spraying equipment. The mixing agent is accommodated in the inner container 51, and the valve 53 provided at the inlet 52 of the inner container 51 is opened and closed to allow the raw water to flow into the inner container. By diluting and flowing out through the always-open outlet 54 and joining the raw water passing through the raw water flow channel 55, the raw water can be sprayed from the spraying device in a state where the mixing chemical is added and mixed. Is. In addition, according to the attachment described in Patent Document 1, for example, when the mixing drug is reduced or eliminated by use, the drug storage chamber is replenished with a lid provided outside the inner container 51. By opening and closing 56 and inserting or injecting a drug or the like from the drug injection port 57, it is possible to perform the operation without removing the hose or the spraying device from the attachment.
JP-A-8-187454

  However, in the above conventional attachment for mixing, the hose or the spraying device is opened with the inflow port 52 of the inner container 51 open while the lid 56 is not closed during the replenishment operation of the mixing agent or after the replenishment operation. By feeding the raw water (malfunction), for example, the mixing medicine stored in the medicine storage chamber 51 is scattered from the medicine injection port 57 to the surroundings. Further, it is troublesome to open and close the medicine injection port 57 by removing or retightening the lid 56.

  The present invention enables simple, easy and smooth opening / closing operation of the drug injection port and opening / closing operation of the raw water inflow channel to the drug storage chamber and the outflow channel from the drug storage chamber, and the drug injection port is opened. It is an object of the present invention to provide a mixing attachment that can reliably prevent the above-described malfunction of opening the raw water inflow channel in a state as it is, and a medicine spraying device to which the mixing attachment is attached.

  The present invention is provided between the upstream flow channel and the downstream flow channel, and is mixed with the raw water flowing in from the upstream flow channel while mixing the mixing agent stored in the drug storage chamber with the raw water. A mixing attachment for flowing into the downstream flow path, comprising an inner cylinder and an outer cylinder arranged concentrically, wherein the inside of the inner cylinder serves as a raw water main flow path, and the inner side A hollow portion between the cylindrical body and the outer cylindrical body is covered with an upstream blocking portion and a downstream blocking portion at both ends to form the drug storage chamber, and a cover body mounted on the outer periphery of the outer cylindrical body is pivoted The medicine injection port formed on the peripheral surface of the outer cylinder is opened and closed by sliding in the direction, and the upstream cylinder is rotated by rotational movement of the outer cylinder relative to the inner cylinder. Formed in the raw water inflow passage formed in the side blocking portion and the downstream blocking portion. In the state where the outflow passage is opened and closed, and the cover body is slid in the axial direction to open the medicine injection port, the outer cylinder is prevented from rotating relative to the inner cylinder, In a state where the outer cylinder body is rotated and the raw water inflow path and the outflow path are opened, the mixing attachment provided with a lock mechanism that prevents the cover body from sliding in the axial direction, and the mixing attachment are integrated. The above-mentioned object is achieved by providing a medicine spraying device attached as

  According to the mixing attachment of the present invention and the medicine spraying device to which the mixing attachment is integrally attached, the opening and closing operation of the medicine injection port, and the opening and closing operation of the raw water inflow path to the medicine storage room and the outflow path from the medicine storage room Can be carried out simply, easily and smoothly, and a malfunction that opens the raw water inflow passage to the medicine storage chamber while the medicine inlet is kept open can be reliably prevented.

  The mixing attachment 10 according to the first preferred embodiment of the present invention is attached, for example, between a shower device 11 as a spray device and a shower water supply hose 12 as shown in FIG. In the shower water, a chemical such as a bath chemical, a cleaning chemical, a fragrance drug, and a skin care chemical is added and mixed while flowing down toward the shower device 11 on the downstream side, and the shower water is mixed with the shower water. The shower device 11 is employed so that it can be used as a medicine spraying device.

  And the attachment 10 for mixing of this 1st Embodiment is upstream in the shower water supply hose 12, as shown to FIG. 2, FIG. 3 (a), (b) and FIG. 4 (a), (b). The mixing agent provided between the side channel 13 and the downstream channel 14 in the shower device 11 and stored in the drug storage chamber 15 in a liquid, gel-like, granular, or the like state An inner cylinder 19 arranged concentrically, which is an attachment that mixes with the raw water flowing in from the channel 13 and flows the mixed liquid in which the drug for mixing is diluted or dissolved together with the raw water to the downstream flow path 14. The outer cylindrical body 20 and the inside of the inner cylindrical body 19 are the raw water main flow path 21 and the hollow portion having an annular cross section between the inner cylindrical body 19 and the outer cylindrical body 20 is Cover both ends with the upstream blocking portion 22 and the downstream blocking portion 23. And it has a containing chamber 15. In addition, the cover body 28 mounted on the outer periphery of the outer cylindrical body 20 is slid in the axial direction X to open and close the medicine injection port 27 formed on the peripheral surface of the outer cylindrical body 20, and the inner cylinder. The outflow path formed in the raw water inflow path 16 formed in the upstream blocking section 22 and the downstream blocking section 23 by the rotational movement in the circumferential direction Y integrated with the cover body 28 of the outer cylindrical body 20 with respect to the body 19. 17 is opened and closed, and the cover body 28 is slid in the axial direction X to open the drug injection port 27 (see FIGS. 4A and 4B), the inner cylindrical body 19 In the state where the outer cylinder 20 is prevented from rotating and the outer cylinder 20 is rotated and the raw water inflow path 16 and the outflow path 17 are opened (see FIG. 3B), the axial direction of the cover body 28 Prevent X slide movement And a locking mechanism (see Fig. 2).

  Further, according to the mixing attachment 10 of the first embodiment, the cover body 28 is loosely fitted between the upper annular projecting wall 33 and the lower annular projecting wall 30 provided above and below the outer cylindrical body 20. It has a cylindrical sleeve shape that is disposed so as to be slidable in the axial direction X along the peripheral surface of the outer cylindrical body 20, and the locking mechanism is formed by cutting out the lower edge of the cover body 28. The cover body lower end cutout recess 29, a lower locking projection 31 provided so as to protrude upward from the lower annular protruding wall 30, and fitted and locked in the cover body lower end cutout recess 29, and the upper end of the cover body 28 A cover body upper end protrusion 32 provided so as to protrude upward from the edge and a lower side of the upper annular protrusion wall 33 are cut out, and the cover body upper end protrusion 32 is loosely fitted and locked so as to be slidable in the circumferential direction Y. With the upper notch groove 34 It is configured Te.

  According to the first embodiment, in the mixing attachment 10, the mounting hole 24 into which the shower device 11 is screwed and mounted is formed at the upper end of the mixing attachment 10 by being surrounded by the peripheral wall 33 constituting the upper annular protruding wall. Has been. Further, a hollow mounting projection 25 to which the shower water supply hose 12 is mounted is provided at the lower end portion of the attachment 10 so as to protrude downward from the overhanging base end portion 30 constituting the lower annular projecting wall. And the raw | natural water main flow path 21 which penetrates between the attachment hole 24 and the hollow attachment protrusion 25 and runs through the attachment 10 for mixing vertically is located in the center part of the attachment 10 for mixing of circular cross section, and is an inner cylinder. It is formed inside the body 19.

  Further, the outer cylindrical body 20 which is a transparent synthetic resin member, and an upstream inner closing portion 22b and a downstream inner closing portion 23b which are integrally provided by projecting radially inward from upper and lower ends thereof, A space surrounded by the outer peripheral surface of the inner cylindrical body 19 forms a medicine storage chamber 15 having an annular cross section. In addition, the outer cylindrical body 20 has an air hole 26 formed at the upper end portion thereof, and a medicine injection port 27 that also serves as a water draining port is provided at the lower end portion so as to be positioned vertically below the air hole 26. ing. Further, a transparent cylindrical cover body 28 is attached so as to cover the outer side of the outer cylindrical body 20, and the cover body 28 can be slid up and down with respect to the outer cylindrical body 20, and the outer cylindrical body. It is provided so as to be rotatable and slidable with respect to the upstream outer closing portion 22a and the downstream outer closing portion 23a integrated with the inner cylindrical body 19 together with the outer cylindrical body 20 by being integrated with the body 20.

  Furthermore, according to the first embodiment, the upstream outer blocking portion 22a that forms the upstream blocking portion 22 together with the upstream inner blocking portion 22b is integrally formed with the mounting protrusion 25 with the overhanging base end portion 30 interposed therebetween. It is a portion that is mounted and fixed so as to cover the outer peripheral surface of the inner cylindrical body 19 and is attached so as to close the gap between the inner cylindrical body 19 and the outer cylindrical body 20 from the outside of the upstream inner blocking portion 22b. . Further, the downstream outer blocking portion 23a that forms the downstream blocking portion 23 together with the downstream inner blocking portion 23b is integrally formed with the inner cylindrical body 19 so as to extend radially outward from the upper end of the inner cylindrical body 19. This is a portion provided so as to close the space between the inner cylindrical body 19 and the outer cylindrical body 20 from the outside of the downstream inner blocking portion 23b.

  According to the first embodiment, an O-ring or the like is appropriately provided as necessary at the joint portion between the outer closing portions 22a and 23a and the inner closing portions 22b and 23b or the joint portion between other members. The water-stopping property of these joints is improved.

  In addition, according to the first embodiment, the spiral flow that is connected to the outlet of the raw water inflow passage 16 at the upstream end of the medicine storage chamber 15 and generates a spiral flow toward the outflow passage 17 in the medicine storage chamber 15. A generating means 18 is provided. That is, according to the first embodiment, as shown in FIG. 5 for example, the spiral flow generating means 18 communicates with the inner raw water inflow passage 16b and is provided so as to protrude above the upstream inner blocking portion 22b. A pair of hollow cylindrical projections 40 having a discharge port 41 closed at the lower end portion of the medicine storage chamber 15 having an annular cross section and spaced at an interval of 180 degrees in the circumferential direction. Moreover, these hollow cylindrical protrusions 40 flow in from the raw water inflow passage 16 because the discharge ports 41 are opened laterally in the same rotational direction along the circumferential direction of the medicine storage chamber 15 having an annular cross section. The raw water to be discharged is discharged from the discharge port 41 toward the circumferential direction of the annular cross section, thereby generating a spiral flow toward the outflow path 17 in the medicine containing chamber 15.

  And according to this 1st Embodiment, the raw | natural water inflow path 16 of the mixing chemical | medical agent accommodated in the chemical | medical agent storage chamber 15 via the slide lock mechanism by operation of the cover body 28 with which the outer side cylindrical body 20 was mounted | worn. In addition, the opening and closing of the outflow passage 17, the drainage from the medicine storage chamber 15, and the switching to a state in which the mixing medicine can be injected into the medicine storage chamber 15 can be easily performed. In addition, when the cover 28 is slid in the axial direction X (see FIG. 2) and the drug injection port 27 is opened by the lock function of the slide lock mechanism, the outer cylinder 20 rotates relative to the inner cylinder 19. In the state where the outer cylindrical body 20 is rotationally moved and the raw water inflow path 16 and the outflow path 17 are opened, the sliding movement of the cover body 28 in the axial direction X can be prevented.

  That is, as shown in FIG. 2, the upper half of the cylindrical cover body 28 is provided with a plurality of anti-slip projections 37 for making the cover body 28 slide easily. Further, a cover body lower end notch recess 29 constituting a slide lock mechanism is provided at the lower end edge of the cover body 28. The cover body lower end notch recess 29 projects an attachment projection 25 as a lower annular projecting wall. A lower locking projection 31 provided so as to protrude upward from the base end 30 is locked so as to be fitted. Further, a cover body upper end protrusion 32 constituting a slide lock mechanism is provided at the upper end of the cover body 28 so as to protrude upward. This cover body upper end protrusion 32 is formed on the peripheral wall 33 of the mounting hole 24 as an upper annular protrusion wall. It is loosely fitted and locked to an upper notch groove 34 extending in the circumferential direction along the lower end edge so as to be slidable in the circumferential direction.

  Furthermore, according to the first embodiment, a slide guide groove 38 is formed in the inner surface of the cover body 28 so as to extend in the vertical direction, and the slide guide groove 38 is notched. The outer peripheral surface of the cover body 28 is engaged with a slide guide protrusion 39 provided in the up-down direction so that the sliding movement in the axial direction X of the cover body 28 with respect to the outer cylindrical body 20 can be smoothly guided. In addition, the outer cylindrical body 20 and the cover body 28 can be integrally rotated in the circumferential direction Y (see FIG. 2) by the engagement of the slide guide groove 38 and the slide guide protrusion 39. ing. Furthermore, the cover body 28 is formed with a cover body air hole 35 at the upper end portion and a cover body medicine injection port 36 at the lower end portion thereof (FIGS. 3 (a), 4 (a), (See (b)), these cover body air holes 35 and cover body drug inlets 36 are spaced at equal intervals so that they can coincide with the air holes 26 and drug inlets 27 of the outer cylindrical body 20 simultaneously. In addition, the cover body medicine injection port 36 is provided in a state of being positioned vertically below the cover body air hole 35.

  Then, if the cover body 28 is slid downward relative to the outer cylindrical body 20 and the cover body lower end notch recess 29 is fitted and locked into the lower locking projection 31, the air hole 26 and the cover body air hole 35 are retained. And the medicine injection port 27 and the cover body drug injection port 36 coincide with each other simultaneously (see FIGS. 4A and 4B), and the outer raw water inlet 16a formed in the upstream outer blocking portion 22a. The inner raw water inlet 16b formed in the upstream inner blocking portion 22b, the outer outlet 17a formed in the downstream outer blocking portion 23a, and the inner outlet 17b formed in the downstream inner blocking portion 23b communicate with each other. It will be in a state that does not. Further, in this state, the rotational movement of the cover body 28 and the outer cylindrical body 20 with respect to the inner cylindrical body 19 is reliably locked by the locking of the cover body lower end notch recess 29 and the lower locking projection 31. It is possible to reliably prevent the raw water inflow path 16 and the outflow path 17 from being opened due to a malfunction. That is, by making the raw water inflow path 16 and the outflow path 17 closed, it is possible to safely inject the medicine into the medicine injection chamber 15 even when shower water is discharged.

  If the cover body 28 is slid upward with respect to the outer cylindrical body 20 from the state in which the cover body lower notch recess 29 and the lower locking projection 31 are locked, the cover body lower end notch recess 29 While the locking state to the lower locking protrusion 31 is released, the cover body upper end protrusion 32 of the cover body 28 moves upward and is arranged at the left end of the upper notch groove 34. In addition, the air hole 26 and the cover body air hole 35, and the medicine injection port 27 and the cover body medicine injection port 36 which are matched with each other are shifted up and down to close them (FIG. 3A). reference). That is, the medicine injection chamber 15 can prevent the medicine from leaking out.

  Further, the cover body 28 together with the outer cylindrical body 20 is slid in the circumferential direction while moving the cover body upper end protrusion 32 to the right along the upper notch recessed groove 34, so that the cover body upper end protrusion 32 is recessed in the upper notch. If it rotates until it contact | abuts to the right end of the groove | channel 34, the outer side obstruction | occlusion part 22a, 23a and the inner side obstruction | occlusion part 22a, 22b will slide-rotate relatively, and the outer side raw | natural water inflow path formed in the upstream outer side obstruction | occlusion part 22a 16a, the inner raw water inflow passage 16b formed in the upstream inner closing portion 22b, the outer outflow passage 17a formed in the downstream outer closing portion 23a, and the inner outflow passage 17b formed in the downstream inner closing portion 23b. The raw water inflow passage 16 and the outflow passage 17 are formed at the same time so that the raw water flows into the medicine storage chamber 15 and the mixing medicine flows out. Door is possible. In this state, even if the cover body 28 is pushed down together with the outer cylindrical body 20, the lower locking protrusion 31 is formed on the lower edge of the cover body 28 where the cover body lower end notch recess 29 is not formed. By abutting, the downward movement in the axial direction X is locked, and this can reliably prevent the air hole 26 and the medicine injection port 27 from being opened due to a malfunction.

  On the other hand, when the raw water inflow path 16 and the outflow path 17 are simultaneously opened to allow the mixing agent to flow out, the cover body 28 and the outer cylindrical body 20 are integrally slid and rotated in the opposite direction to form the raw water. The inflow path 16 and the outflow path 17 are simultaneously closed, so that the outflow of the mixing medicine and the inflow of the raw water into the medicine storage chamber 15 are easily restored. Further, when the cover body 28 is slid downward with respect to the outer cylindrical body 20, the air hole 26 and the cover body air hole 35, and the medicine injection port 27 and the cover body medicine injection port 36 are restored to the matched state. As a result, the fluid remaining in the medicine storage chamber 15 can be discharged.

  Therefore, according to the mixing attachment of the first embodiment, the cover body 28 is slid in the axial direction X with respect to the outer cylindrical body 20, or the outer cylindrical body 20 is rotationally moved together with the cover body 28 in the circumferential direction Y. By simply operating, it is possible to easily and smoothly open and close the drug inlet 27 and open and close the raw water inflow path 16 to the drug storage chamber 15 and the outflow path 17 from the drug storage chamber 15. By providing the mechanism, it is possible to reliably prevent a malfunction in which the raw water inflow passage 16 is opened while the medicine injection port 27 remains open.

  Moreover, according to the mixing attachment 10 of the first embodiment, the work of replenishing the mixing medicine into the medicine storage chamber 15 can be easily performed. That is, when the raw water inflow path 16 and the outflow path 17 are opened, and the mixing chemical is mixed with the raw water and a shower is performed for a predetermined time, the mixing chemical in the drug storage chamber 15 is almost completely diluted (dissolved). As a result, only raw water is present in the medicine storage chamber 15. When the medicine for mixing is lost, as described above, the outer cylindrical body 20 is rotated in the reverse direction together with the cover body 28 to close the raw water inflow path 16 and the outflow path 17, and the cover body 28 is moved to the outer cylindrical body. As shown in FIG. 4 (a), the air hole 26 and the cover body air hole 35, and the drug injection port 27 and the cover body drug injection port 36 are brought into alignment. In addition, while supplying air from the matched air holes 26 and 35, the raw water in the drug containing chamber 15 can be quickly removed from the matched drug inlets 27 and 36 by its own weight.

  When the inside of the medicine storage chamber 15 is emptied, as shown in FIG. 5 (b), when the medicine for mixing is, for example, liquid, the medicine replenishing container is placed in the matching medicine injection ports 27 and 36. By inserting the nozzle portion 44 and filling the mixing agent from below while excluding air from the matched air holes 26 and 35, the mixing agent is quickly and easily replenished to the drug containing chamber 15. . If the medicine container 15 is replenished with the mixing medicine, the cover body 28 is slid upward with respect to the outer cylindrical body 20 to close the air holes 26 and 35 and the medicine inlets 27 and 36. Return to a state where it can be mixed with raw water.

  6 (a) and 6 (b) show a mixing attachment 80 according to the second embodiment of the present invention, which has substantially the same configuration as the mixing attachment 10 of the first embodiment, but has an inner cylinder. A mechanism for opening and closing the raw water inflow path 83 formed in the upstream side blocking part 81 and the outflow path 84 formed in the downstream side blocking part 82 by the rotation operation of the outer cylindrical body 20 with respect to the body 19 is the same as that of the first embodiment. It is different from the opening / closing mechanism.

  That is, according to the second embodiment, the inner cylindrical body 19 is provided with the upstream communication hole 85 and the downstream communication hole 86 at a portion where the peripheral surface is covered by the upstream blocking part 81 and the downstream blocking part 82. The inner cylindrical body 19 is formed by being vertically arranged at the same position in the circumferential direction so as to penetrate the circumferential wall in the lateral direction. Moreover, the raw | natural water inflow path 83 and the outflow path 84 which were each formed inside the upstream side blocking part 81 and the downstream side blocking part 82 are the circumferential directions of the said upstream side blocking part 81 and the downstream side blocking part 82 which are annular parts. Are provided so as to penetrate these central portions concentrically and in an annular shape.

  Further, according to the second embodiment, the raw water inflow passage 83 formed inside the upstream side blocking portion 81 is blocked at the upstream side of the portion covering the outer peripheral surface of the inner cylindrical body 19 at a specific position in the circumferential direction. The accommodation room side communication hole 88 which has the raw | natural water inflow port 87 (refer FIG.6 (b)) formed through the part 81 and penetrated the top | upper surface wall of the inflow channel 83, and was formed in multiple places in the circumferential direction. The raw water can be supplied from the raw water inflow passage 83 to the medicine storage chamber 15 through these storage chamber side communication holes 88. Further, the outflow path 84 formed inside the downstream side blocking portion 82 is a downstream side blocking portion of a portion covering the outer peripheral surface of the inner cylindrical body 19 at a specific position in the circumferential direction facing the same direction as the raw water inlet 87. 82 has an outlet 89 (see FIG. 6 (b)) formed through the 82, and has a chamber-side communication hole 90 that is formed in the circumferential direction so as to pass through the lower wall of the outflow passage 84. The raw water mixed with the mixing medicine can be discharged from the medicine storage chamber 15 to the outflow path 84 through the storage chamber side communication holes 90.

  And according to the mixing attachment 80 of this 2nd Embodiment, it is latched by the upstream obstruction | occlusion part 81 and the downstream obstruction | occlusion part 82 with respect to the inner side cylindrical body 19 similar to the attachment 10 for mixing of the said 1st Embodiment. By rotating the integrated outer cylindrical body 20, as shown in FIG. 6A, the upstream communication hole 85 and the downstream communication hole 86, and the raw water inlet 87 and the outlet 84 of the raw water inlet 83 are provided. As shown in FIG. 6B, the upstream communication hole 85 and the downstream communication hole 86, the raw water inlet 87 of the raw water inlet 83, and the outlet of the outlet 84 as shown in FIG. It is possible to easily open and close the raw water inflow path 83 and the outflow path 84 by switching between the state and the state in which they are simultaneously matched with each other, and thereby the same action as the mixing attachment 10 of the first embodiment. Effect It will be.

  Further, according to the mixing attachment 80 of the second embodiment, the raw water inflow path 83 and the outflow path 84 are caused by relative sliding rotation between the inner cylindrical body 19 and the upstream side blocking part 81 and the downstream side blocking part 82. Thus, the O-ring 91 is mounted and fixed mainly on the outer peripheral surface of the inner cylindrical body 19 in order to smoothly slide and rotate them while maintaining the sealed state of the medicine storage chamber 15.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the mixing attachment of the present invention is not limited to the one that mixes and sends out body medicine such as bath medicine or skin care medicine into shower water, and is attached to other medicine spraying equipment other than shower equipment, Various liquids, gels, granules, solids, etc., such as household consumption drugs and agricultural chemicals can also be used for mixing with raw water. In addition, a spiral flow generating means for generating a spiral flow inside the drug storage chamber may or may not be provided, and a mechanism for rotating the outer cylinder relative to the inner cylinder to open and close the inflow path and the outflow path. Is not limited to the above-described opening / closing mechanism.

  Further, when the medicine injection hole is opened by sliding the cover body in the axial direction, the outer cylinder is prevented from rotating relative to the inner cylinder, and the outer cylinder is rotated to move the raw water inflow path or outflow path. In the opened state, the lock mechanism for preventing the cover body from sliding in the axial direction is not limited to the above-described embodiments, and various other lock mechanisms can be employed. A cover body lower end projection provided on the lower end edge of the cover body and projecting downward; a lower locking recess formed by cutting out the upper side of the lower annular projection wall; The cover body upper end notch groove formed by cutting out the upper edge of the cover body and the upper annular projecting wall projecting downward, and is slidable in the cover body upper end notch groove so as to be slidable in the circumferential direction. Upper part fitted and locked It may be configured by the retaining projection.

  And according to this invention, as shown in FIG. 7, these attachments 10 and 80 which have the above-mentioned structure are used, interposing between a shower appliance and a shower water supply hose, for example. The mixing attachments 10 and 80 are integrally attached to the shower device 70, and are used as the shower device 70 having a function capable of switching between a state where the mixing agent flows out together with the shower water and a state where only the shower water flows out. You can also. That is, the mixing attachments 10 and 80 can be used by being attached integrally to a shower device 70 as a medicine spraying device together with, for example, a water purification unit 71 having a dechlorination filter through various known attachment means. Further, the mixing attachments 10 and 80 can be built in and attached to the shower device 70 so as not to be seen from the outside of the shower device 70.

It is a side view explaining the condition which attaches and uses the attachment for mixing which concerns on this invention to a shower apparatus. It is a front view explaining the slide lock mechanism in the attachment for mixing concerning a 1st embodiment of the present invention. (A) And (b) is sectional drawing explaining the condition which mixes the chemical | medical agent for mixing with raw | natural water with the attachment for mixing which concerns on 1st Embodiment of this invention. (A) And (b) is sectional drawing explaining the condition which replenishes the chemical | medical agent for mixing to the attachment for mixing which concerns on 1st Embodiment of this invention. It is a schematic perspective view explaining the spiral flow generation means provided in the attachment for mixing which concerns on 1st Embodiment of this invention. (A) And (b) is sectional drawing explaining the condition which mixes the chemical | medical agent for mixing with raw | natural water with the attachment for mixing which concerns on 2nd Embodiment of this invention. It is sectional drawing which illustrates the shower fixture which attached the attachment for mixing which concerns on this invention integrally. It is a partially broken side view explaining an example of the conventional attachment for mixing.

Explanation of symbols

10, 80 Mixing attachments 11, 70 Shower fixture 12 Shower water supply hose 13 Upstream flow path 14 Downstream flow path 15 Drug storage chambers 16, 83 Raw water inflow path 16a Outer raw water inflow path 16b Inner raw water inflow paths 17, 84 Outflow Channel 17a Outer outlet channel 17b Inner outlet channel 19 Inner cylinder (inner cylinder)
20 Outer cylinder (outer cylinder)
21 Raw water main flow path 22, 81 Upstream blocking part 22a Upstream outer blocking part 22b Upstream inner blocking part 23, 82 Downstream blocking part 23a Downstream outer blocking part 23b Downstream inner blocking part 26 Air hole 27 Drug inlet ( Water drain)
28 Cover body 29 Cover body lower end notch recess 30 Lower annular protruding wall (protruding base end of mounting protrusion)
31 Lower locking protrusion 32 Cover body upper end protrusion 33 Upper annular protruding wall (periphery wall of mounting hole)
34 Upper cut-out concave groove 35 Cover body air hole 36 Cover body drug injection port (water drain port)
85 Upstream side communication hole 86 Downstream side communication hole 87 Inlet port 88, 90 Storage chamber side communication hole 89 Outlet port 91 0-ring X axial direction Y circumferential direction

Claims (5)

The mixing agent provided between the upstream flow channel and the downstream flow channel and mixed in the raw water flowing in from the upstream flow channel is mixed with the raw water flowing in from the upstream flow channel while being mixed with the raw water. Attachment for mixing
It has an inner cylinder and an outer cylinder arranged concentrically, and the inside of the inner cylinder serves as a raw water main flow path, and a hollow portion between the inner cylinder and the outer cylinder The both ends are covered with an upstream blocking portion and a downstream blocking portion to form the drug storage chamber,
The cover body mounted on the outer periphery of the outer cylinder is slid in the axial direction to open and close the medicine injection port formed on the peripheral surface of the outer cylinder, and the By rotating the outer cylinder in the circumferential direction integrated with the cover body, the raw water inflow passage formed in the upstream blocking portion and the outflow passage formed in the downstream closing portion are opened and closed. And
In the state where the cover body is slid in the axial direction and the medicine injection port is opened, the outer cylinder is prevented from rotating relative to the inner cylinder, and the outer cylinder is rotated to move the raw water into A mixing attachment comprising a lock mechanism that prevents the cover body from sliding in the axial direction when the path or the outflow path is open. The cover body is loosely arranged between an upper annular projecting wall and a lower annular projecting wall provided above and below the outer cylindrical body, and slides in the axial direction along the peripheral surface of the outer cylindrical body. The lock mechanism has a sleeve shape that is movably mounted, and the lock mechanism protrudes upward from a cover body lower end cutout recess formed by cutting out a lower end edge of the cover body and the lower annular protrusion wall. A lower locking projection that is fitted and locked in the notch recess in the lower end of the cover body, an upper projection of the cover body that protrudes upward from an upper edge of the cover body, and the upper annular protruding wall The mixing attachment according to claim 1, wherein the upper end protrusion of the cover body is formed by cutting out a lower side of the cover, and the upper cutout groove is configured to be loosely fitted and locked so as to be slidable in the circumferential direction. The cover body is loosely arranged between an upper annular projecting wall and a lower annular projecting wall provided above and below the outer cylindrical body, and slides in the axial direction along the peripheral surface of the outer cylindrical body. The lock mechanism has a sleeve shape that is movably mounted, and the lock mechanism is formed by notching a cover body lower end protrusion provided on the lower end edge of the cover body so as to protrude downward, and an upper side of the lower annular protrusion wall. A lower locking recess formed by inserting and locking the lower protrusion of the cover body, a cover body upper notch recess groove formed by cutting out an upper edge of the cover body, and the upper annular protruding wall 2. The mixing attachment according to claim 1, further comprising an upper locking projection that is provided so as to protrude downward from the upper cover and is slidably fitted and slidable in the circumferential direction in the cover body upper end notch groove. The mixing attachment according to any one of claims 1 to 3, wherein the attachment is used by being attached to a spraying device. The chemical | medical agent spraying instrument which attached the attachment for mixing in any one of Claims 1-4 integrally.

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