JPH0621790U - Water purifier - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a water purification device in which a water purification cartridge can be quickly attached and detached without causing damage to the device, and further, the occurrence of water leakage can be prevented. [Structure] A lock groove 31 is provided at a lower portion of an outer peripheral portion of the water purification cartridge 20 so as to slide and guide a protrusion 30 of a lock ring 25 and cooperate with the protrusion 30 to regulate axial displacement of the water purification cartridge 20. Since the water purification cartridge 20 can be attached and detached by rotating the lock ring 25, the water purification cartridge 20 can be replaced with a small force without damaging the device. Lock ring
Since the water purification cartridge 20 can be attached / detached by rotating 25 by the circumferential length of the lock groove 31, attachment / detachment can be speeded up. Since the water purification cartridge 20 is attached and detached without rotating, the inflow port 28 in the eccentric position can be connected to the mounting base 22 side, and large water pressure does not act on each part to prevent water leakage. it can.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water purifier such as a water purifier or an electrolytic ion water generator.

[0002]

[Prior art]

 FIG. 8 shows an example of a conventional water purifier. In the figure, 1 is a water purification cartridge, and 2 is a mounting base to which the water purification cartridge 1 is detachably mounted. The water purification cartridge 1 has a cylindrical shape with a bottom, the filter 3 is housed inside, and the male portion 4 is formed in the lower portion. An outflow port 6 projecting downward is provided at the center of the bottom surface portion 5 of the water purification cartridge 1, and a part of the bottom surface portion 5 is opened to form an inflow port 7. The treated water such as tap water is purified by passing it through the filter 3, and the purified water can be discharged from the outflow port 6.

The mounting base 2 has a built-in electrolyzer (not shown) having a function of electrolyzing water to generate ionic water, and has an internal thread portion 8 screwed onto the external thread portion 4 at an upper portion thereof. A recess 9 having a predetermined depth is formed in the center of the upper part. An outflow through hole 10 into which the outflow port 6 is fitted is formed in the center of the recess 9. When the water purification cartridge 1 is screwed into the mounting base 2 for a predetermined length, the outflow port 6 is exposed through the outflow through hole. It is adapted to be fitted to the 10 so as to communicate with each other and to block the communication between the recess 9 and the outflow through hole 10. In addition, an inflow through hole 11 is formed in the upper portion of the mounting base 2 so that one end side is opened to the recess 9 and the other end side is communicated with the electrolyzer.

In the water purifying apparatus thus configured, the water purifying cartridge 1 is fixed to the mounting base 2 by rotating the water purifying cartridge 1 several times in a predetermined direction and screwing the male screw portion 5 into the female screw portion 8. In this state, the outflow through hole 10, the outflow port 6, the filter 3, the inflow port 7, the recess 9, the inflow through hole 11 and the flow path of the electrolyzer are formed, and the filter 3 purifies the water to be treated, The electrolyzer processes this purified water to obtain ionized water. When replacing the water purification cartridge 1, the water purification cartridge 1 is rotated a predetermined number of times in the opposite direction to loosen the screwed state and removed from the mounting base 2.

[0005]

[Problems to be solved by the device]

 By the way, in the above-mentioned water purification apparatus, when attaching / detaching the water purification cartridge 1, it was necessary to rotate the water purification cartridge 1 several times, and replacement of the water purification cartridge 1 took time and effort. Further, when removing the water purification cartridge 1, the water purification cartridge 1 must be rotated with a large rotational force, and accordingly, a large force is applied to the mounting base 2 and the mounting base 2 may be damaged. was there. Although the recess 9 is provided so that the water from the inflow port 7 can be sent to the side of the water purification cartridge 1 even when the water purification cartridge 1 is rotated, the bottom surface of the water purification cartridge 1 can be provided by providing the recess 9. There is a risk that the entire portion 5 will be subjected to water pressure, and accordingly, a large force will be applied to the screw threaded portion, causing loosening of the screw.

The present invention has been made in view of the above circumstances, and the water purification cartridge can be attached and detached quickly and without causing damage to the device, and it is possible to prevent a large water pressure from being applied to prevent the occurrence of water leakage. The purpose is to provide a water purification device.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a water purification cartridge having a built-in internal element and having an inflow port and an outflow port at an axial center position and an eccentric position of a lower surface part, which are fitted in a recess of a mounting base. In the water purifier, a lock ring is rotatably and non-removably fitted in a recess of the mounting base, and a protrusion is provided on the lock ring, and the lock ring is provided outside the water purification cartridge according to the rotation of the lock ring. It is characterized in that the projection is provided in a sliding manner and a lock groove is provided in cooperation with the projection to restrict the water purification cartridge from coming off. In this case, the lock groove is formed from a sliding guide part that extends obliquely from the lower side of the water purification cartridge to the upper side, and a lock part of a predetermined length that is connected to the upper part of the sliding guide part and extends obliquely to the lower side. You may comprise.

[0008]

[Action]

 With this structure, when the lock ring is rotated in the predetermined direction, the water purification cartridge is displaced in the axial direction, and the water purification cartridge is fixed to the mounting base by the cooperation of the protrusion and the lock groove. When the projection is disengaged from the lock groove and the lock ring is rotated in the opposite direction, the water purification cartridge is axially displaced and removed from the mounting base. In addition, since the water purification cartridge does not have to be rotated when attaching or detaching the water purification cartridge, the inflow port or outflow port provided at the eccentric position of the water purification cartridge can be connected to the mounting base side. Even when the target water flows, it can be avoided that a large water pressure acts on each part.

[0009]

【Example】

 Hereinafter, a water purifier according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

In the figure, 20 is a substantially cylindrical water purification cartridge having a filter 21 and the like built therein, 22 is a mounting base that houses an electrolyzer (not shown), and a recess 23 is provided above the mounting base 22. Is provided, and the water purification cartridge 20 is detachably attached to the recess 23. Further, 25 is an annular lock ring rotatably interposed between the water purification cartridge 20 and the mounting base 22.

The lower surface portion 26 of the water purification cartridge 20 is provided with a cylindrical outflow port 27 projecting downward (downward in FIG. 1) at an axial center position thereof, and is eccentric to the outflow port 27 side by side. A tubular inflow port 28 is provided at this position. The water purification cartridge 20 is adapted to purify the water to be treated such as tap water that has flowed in from the inflow port 28 by passing it through the filter 21 and the like, and allow the purified water to flow out from the outflow port 27. At the lower part of the outer peripheral portion 28 of the water purification cartridge 20, two lock grooves 31 for inserting and guiding two projections 30 described later are formed. One end of the lock groove 31 is opened at the end of the outer peripheral portion 28 (this opening is indicated by reference numeral 31a), and the other end is slidably extended to the upper side, and a sliding guide portion 31b. It is composed of a parallel part 31C which is connected to the other end and extends in a direction orthogonal to the axis, and a lock part 31d which is connected to the parallel part 31C and extends obliquely toward the lower side (lower side in FIG. 1). As will be described later, when the protrusion 30 is inserted into the lock portion 31d, the lock function is exerted on the water purification cartridge 20 to prevent the water purification cartridge 20 from sliding downward. I am trying to do it.

A cylindrical outflow port insertion portion 33 and an inflow port insertion portion 34, into which the outflow port 27 and the inflow port 28 are respectively inserted, are formed on the mounting base 22 and extend inward (downward in FIG. 5). ing. Water to be treated such as tap water is supplied to the inflow port insertion portion 34, and the electrolyzer is connected to the outflow port insertion portion 33. A notch 35 extending in the circumferential direction is formed in a part of the wall 23a forming the recess 23.

A rotation guide claw 37 to be inserted into a mounting groove 36 formed inside the wall 23a of the mounting base 22 is formed at a lower end portion (lower side in FIG. 4) of the lock ring 25. By inserting 37 into the mounting groove 36, the lock ring 25 can rotate 20 ° with respect to the mounting base 22 and cannot be removed. A grip portion 38 projecting from the cutout portion 35 is provided on the outer peripheral portion 28 of the lock ring 25. When the grip portion 38 is used to apply a rotational force to the lock ring 25, the rotation guide claw 37 is attached to the mounting groove 36. Guided by the lock ring 25, the lock ring 25 is rotated along the wall 23a. The two protrusions 30 are formed on the inner peripheral portion of the lock ring 25 so as to face each other, and the two protrusions 30 are inserted into the lock grooves 31 of the water purification cartridge 20. .

In the water purifier configured as described above, the handle portion 38 is located in the cutout portion 35, the lock ring 25 is disposed in the recess 23 of the mounting base 22, and the protrusion 30 of the lock ring 25 is locked by the lock ring 25. The water purification cartridge 20 is inserted so that the openings 31a of the groove 31 are aligned with each other, and the outflow port 27 and the inflow port 28 are aligned with the outflow port insertion portion 33 and the inflow port insertion portion 34, respectively (FIG. 5). Next, when a rotational force in the direction of arrow A is applied to the lock ring 25, the protrusion 30 is guided by the lock groove 31 and the lock ring 25 rotates in the same direction. With this rotation, a downward force is applied to the water purification cartridge 20. As a result, the water purification cartridge 20 is pushed down, and the outflow port 27 and the inflow port 28 are fitted into the outflow port insertion portion 33 and the inflow port insertion portion 34, respectively. When the projection 30 reaches the other end 31b of the lock groove 31, the rotation of the lock ring 25 is stopped, and the water purification cartridge 20 is locked because its axial displacement is suppressed. It will be retained on the mounting base 22 via the lock ring 25 (FIG. 6).

When the water purification cartridge 20 is removed from the mounting base 22, when a rotational force in the direction of arrow B is applied to the lock ring 25 as shown in FIG. 6, the protrusion 30 is inserted into the lock groove 31 and locked. The ring 25 rotates in the same direction, and with this rotation, an upward force acts on the water purification cartridge 20 to push it up, and finally the protrusion 30 is positioned at the opening 31a of the lock groove 31. The water purification cartridge 20 is removed from the mounting base 22 by lifting the water purification cartridge 20 in this state.

Since the water purification cartridge 20 can be attached / detached by rotating the lock ring 25 as described above, the water purification cartridge 20 can be attached / detached as compared to the case where a large / heavy water purification cartridge is rotated to attach / detach the water purification cartridge. The replacement of the water purification cartridge is simple, and even when the work is performed with a small force, the device is not damaged, and the water purification cartridge 20 can be attached and detached by rotating the lock ring 25 by the circumferential length of the lock groove 31. As compared with the case where the water purification cartridge is rotated several times to be attached / detached, the water purification cartridge 20 can be attached / detached quickly.

Further, in the water purifying apparatus shown in FIG. 8, since the recess 9 is provided, the entire lower surface portion 5 of the water purifying cartridge 1 is subjected to water pressure due to back pressure or the like, and accordingly, a large force is applied to the screw threaded portion. Although there was a risk that the screws would be loosened, the water purification device of the present invention allows the water purification cartridge 20 to be attached / detached without rotating, so that it communicates with the inflow port 28 provided at the eccentric position and the water purification cartridge. The inflow port insertion portion 34 can be directly connected. Therefore, even if the water to be treated flows, a large water pressure does not act on each part.Therefore, water leakage can be prevented without using a preventive water purification cartridge 20 with a structure that can withstand a large water pressure. As a result, the water purification cartridge 20 can be downsized.

In the above-described embodiment, an example is shown in which two protrusions 30 are provided on the inner peripheral portion of the lock ring 25, and two lock grooves 31 are provided on the water purification cartridge 20 so as to correspond to the two protrusions 30. However, the present invention is not limited to this, and three or more protrusions 30 and three or more corresponding lock grooves 31 may be provided.

In the above embodiment, the lock portion 31d of the lock groove 31 is formed by being connected to the sliding guide portion 31b through the parallel portion 31C, but the lock portion 31d is formed by this. It is not limited to this, but may be directly connected to the sliding guide portion 31b as shown in FIG. 7, for example. As a result, the processing of the water purification cartridge 20 can be easily performed by the amount that the parallel portion 31C is omitted.

[0020]

[Effect of device]

 Since the present invention is the water purification device configured as described above, the water purification cartridge can be attached and detached by rotating the lock ring. Therefore, when attaching and detaching the water purification cartridge by rotating a large and heavy water purification cartridge. Compared with the above, the replacement work of the water purification cartridge is simpler and the force required for the work is small so that the device will not be damaged. Further, since the water purification cartridge can be attached and detached by rotating the lock ring by the circumferential length of the lock groove, the water purification cartridge can be attached and detached quickly. In addition, the water purification cartridge can be attached and removed without rotating, and the inflow port or the outflow port provided at the eccentric position of the water purification cartridge can be connected to the mounting base side, so that a large water pressure is applied to each part. It is possible to prevent the occurrence of water leakage without using a preventive water purification cartridge having a structure that can withstand a large water pressure, and it is possible to downsize the water purification cartridge.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a water purification apparatus according to an embodiment of the present invention.

FIG. 2 is a front view showing a water purification cartridge of the water purification apparatus.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is a cross-sectional view showing a mounting base and a lock ring of the water purifier.

FIG. 5 is a cross-sectional view showing a mounting start state of a water purification cartridge of the water purification apparatus.

FIG. 6 is a cross-sectional view showing a state where the same water purification cartridge is started to be removed.

FIG. 7 is a diagram schematically showing another example of the lock groove provided in the water purification cartridge.

FIG. 8 is a diagram schematically showing an example of a conventional water purifier.

[Explanation of symbols]

 20 Water purification cartridge 21 Filter 22 Mounting base 23 Recess 25 Lock ring 27 Inflow port 28 Outflow port 29 Outer periphery 30 Protrusion 31 Lock groove

Claims (2)

[Scope of utility model registration request] 1. A water purification apparatus having a built-in internal element, wherein a water purification cartridge having an inflow port and an outflow port at an axial center position and an eccentric position of a lower surface is fitted in a recess of the mounting base, wherein the mounting base is provided. The lock ring is rotatably and non-removably fitted in the recess of the lock ring, a protrusion is provided on the lock ring, and the protrusion is slidably guided to the outside of the water purification cartridge according to the rotation of the lock ring. A water purifying device, characterized in that a lock groove is provided to regulate the removal of the water purifying cartridge in cooperation with the water purifying cartridge. 2. The water purification apparatus according to claim 1, wherein the lock groove is slidably extended from a lower side of the water purification cartridge to an upper side of the water purification cartridge, and is connected to an upper portion of the sliding guide to a lower side thereof. A water purification device that is composed of a lock part that extends diagonally and has a predetermined length.