JPH02121668A - Bath pump - Google Patents

Abstract

PURPOSE:To obtain a bath pump capable of simply and rapidly disassembling a part requiring cleaning by fixing an emitting orifice forming member and an electromotive pump in a detachable manner by the fixing means piercing the emitting orifice forming member and a cylindrical body. CONSTITUTION:When an impeller 46 is rotated by supplying a current to a motor 45, the hot water in a bathtub is sucked in the impeller 46 through a cylindrical suction port 51, a filter 53 and a communication port 47a to flow in the peripheral direction of the impeller 46 by centrifugal force and subsequently emitted between the motor 45 and a cylindrical inner wall 24a to pass through a water passing hole 33, a communication passage 41 and an emitting orifice 40 and ejected from the emitting orifice 40 while mixed with air in an air bubble state in the emitting orifice 40. When a fixing screw-55 is detached to release the fixing of an upper float 22 (emitting orifice forming member) and an electromotive pump 23 and the upper float 22 is separated from a cylindrical body 21, the emitting orifice 40 is separated up and down and an emitting orifice forming groove 35 is exposed and, therefore, the emitting orifice 40 can be easily cleaned.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an in-bath pump that suspends hot water on the surface of a bathtub, sucks in air and water from the bathtub, mixes it, and blows out the mixture. be.

(Prior Art) As this type of submerged pump, there is one shown in FIG.

This submersible pump includes a cylindrical body 1 as a base, an upper housing 2 disposed above the cylindrical body 1, an upper cover 3 that covers the upper part of the cylindrical body 1, and a body disposed within the upper cover 3. The upper float 4 is provided with a raised upper float 4. The upper float 4 is formed hollow from rubber or the like, and attached to the inner surface of the upper cover 3.

The submersible pump also includes an electric pump 5 loosely inserted into the cylindrical body 1, a bottom cover 6 that covers the top of the electric pump 5, and a lower float 7 provided within the cylindrical body 1. This lower float 7 is formed hollow from rubber or the like and attached to the inner surface of the cylindrical body l.

The cylindrical body 1 is open at the lower end and has an upper wall 1a at the upper end.

The upper casing 2 is fixed to the upper wall 1a with screws 8, and a communication port 1b to the upper casing 2 is formed in the upper wall 1a. A nozzle 9 is integrally provided in the upper housing 2. Four annular portions 10 extending in the circumferential direction are formed on the outer circumferential surface of the upper end of the cylindrical body 1, and a claw portion 3a provided at the T: end of the upper cover 3 is engaged with this annular recess 10. . Moreover, this upper cover 3 is fixed to the upper part of the cylindrical body 1 at a plurality of locations with screws (not shown). An opening 11 is formed in a portion of the upper cover 3 facing the nozzle 9, an air suction port 9a is formed in the upper part of the nozzle 9, and an air guide hole 12 is formed in the upper part of the upper cover 3.

Further, the electric pump 5 described in "1" includes a motor 13, an impeller 14 attached to the output shaft of the motor 13, and a suction port cover 15 that covers the impeller 14. Note that the suction port cover 15 is fixed to the motor 13 with screws 15a. Further, this motor 13 is fixed to the L wall 1a of the cylindrical body 1 with screws 16, and a cylindrical protector 17 passing through the upper cover 3 is fixed to the upper wall 1a of the cylindrical body 1 with screws 18. A cord 13a of the motor 13 is inserted through the protector 17. Moreover, the suction port cover 1
5 closes the lower end of the cylindrical body 1, a number of suction ports 15b are formed in the center of this suction port cover 15, and a bottom cover 6 is fixed to this suction port cover 15 with screws 19. There is. The bottom cover 6 has a suction port 8a in the center and on the circumferential surface.
6b is formed, and a filter 20 is disposed between the suction U115b and 6b.

When the in-bath pump having such a configuration is placed in a bathtub, the in-bath pump rests γt on the hot water surface due to the buoyant force of the lower float 7, and the upper part of the bath pump than the opening 11 protrudes upward from the hot water surface. In this state, when the motor 13 is operated and the impeller 14 is rotated, hot water in the bathtub flows through the suction ports aa and 6.
b and filter 20. It is sucked into the impeller 14 through the suction port 15b. The water sucked into the impeller 14 is discharged around the motor 13 due to the centrifugal force caused by the rotation of the impeller 14, and then flows upward between the motor 13 and the lower float 7, and is then discharged from the nozzle 9. It is poured out and opened]” 11 gushes out onto the surface of the hot water. At this time, if tears flow from the upper housing 2 into the nozzle 9 through the small holes at high speed, negative pressure is generated near the body part of the hot water to the nozzle. Air intake port 9 inside
Air is sucked in from a.

Then, this sucked air mixes in the air inside the nozzle 9 in the form of bubbles and is ejected.

(Problem to be Solved by the Invention) By the way, if such a bath pump is used in hot water contaminated with scale, this scale will also leak into the bath pump's suction port 6.
However, the scale is sucked into the cylindrical body l without being completely filtered by the filter 20, and is ejected from the nozzle 9.

At this time, a part of the scale adheres to the inside of the bath pump, and after using the bath several times, the amount of scale increases, and this adhered scale gives off a strange odor.

In this case, it is sufficient to disassemble the submersible pump and clean the inside. To do this, remove the upper power bar 3 of the submersible pump from the cylindrical body 1 and separate the cylindrical body 1 and the upper cover 3. After that, screw 16. 18 and connect the electric pump 5 to the cylindrical body 1.
It is necessary to extract it from the

However, in order to remove the upper cover 3 from the cylindrical body 1, it is necessary to remove a plurality of screws (not shown) and also to remove the claw portion 3a from the annular recess 10. Since the electric pump 5 cannot be removed from the cylindrical body 1 without removing the screws 16 and 18, there is a problem in that disassembling the submersible pump requires a lot of work. Moreover, since the claw portion 3a is very thin, this claw portion 3a is very thin.
There was also the problem that the claw part 3a broke when removing the ring part a from the annular recess 10. Furthermore, there was a problem in that the inside of the nozzle 9 had a narrow passage, making it difficult to remove it.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a submerged pump in which the parts that require cleaning can be easily and quickly disassembled.

(Means for Solving the Problems) With this purpose, in the bath pump of the present invention, a closed chamber for generating buoyancy is formed in the side wall of a cylindrical body whose lower end is open,
By providing a discharge opening forming groove [1] at the upper end of the cylindrical body and opening to the inner and outer circumferential surfaces, and closing the upper part of the discharge opening forming groove with a discharge opening forming member disposed above the cylindrical body, forming a discharge port between the discharge port forming groove and the discharge port forming member;
The discharge port forming member is provided with an intake hole that opens upwardly and to the discharge port, and a sealing means is interposed between the upper part of the electric pump whose upper part is loosely inserted into the cylindrical body and the upper part of the cylindrical body. the cylindrical body and the electric pump.

a flow path is formed between the electric pump and the upper part, and a suction port and a discharge port of the electric pump are provided below and above the sealing means, respectively; By removably fixing the discharge L1 forming member and the electric pump, the cylindrical body is clamped and fixed between the discharge L1 forming member and the electric pump.

In addition, the discharge port forming member is configured to be hollow from an upper cover and a lower cover that are coupled to each other, and the lower cover is provided with the intake hole, and one air hose connected to the intake hole is supported by the upper cover. There is.

Furthermore, in the space formed between the upper cover and the lower cover, 9! It is filled with cloth material.

Furthermore, by forming the side wall of the cylindrical body into double inner and outer sides from the stub-shaped inner wall and the cylindrical outer wall, which are opened between the upper ends by fanning, a cylindrical space that extends in the circumferential direction and opens downward in the side wall is formed. and closing the open end of the cylindrical space with an annular n body to form a sealed chamber on the side wall of the cylindrical body, and a positioning means extending annularly in the circumferential direction on the annular lid body. A flange is formed at the lower part of the electric pump, and the flange is fitted into the positioning part, and a fixing means passing through the discharge port forming member and the cylindrical body is connected to the discharge port forming member. By fixing the electric pump with 13 removable functions,
The annular lid body is clamped and fixed between the side wall of the cylindrical body and the flange of the electric pump.

(Function) According to this configuration, by releasing the fixation of the discharge port forming member and the electric pump by the fixing means and separating the discharge port forming member and the electric pump, the discharge port forming member and the electric pump are separated. The pump and barrel are separated. At this time, the passage inside the nozzle will also be exposed.

(Example) This invention will be described below with reference to FIGS. 1 to 9. explain about.

[First Embodiment] FIGS. 1 to 7 show a first embodiment of the present invention.

In Fig. 1, the submersible pump has a cylindrical body 2 as a base.
1. Upper float n as a discharge port forming member.

It is equipped with an electric pump 23 and the like.

The cylindrical body 21 has a tapered cylindrical inner wall 24a and a cylindrical outer wall 1W.
24b. It has an L wall δ that closes the upper end of this side wall 24 and an annular lid 26 . The cylindrical inner wall 24a and the cylindrical outer wall 24b gradually expand downward.
The upper end is closed with a wall 25 as an end wall.

Moreover, before closing with the annular lid body 26, the cylindrical inner wall 24
A downwardly open space is formed between a and the cylindrical outer wall 24b.

Further, the cylindrical inner wall 24a is formed to be slightly shorter than the cylindrical outer wall 24b, and a locking rib 24C protrudingly provided on the inner peripheral surface of the cylindrical outer wall 24b is located slightly below the lower end of the cylindrical inner wall 24a. ing. A plurality of locking ribs 24c are provided at intervals in the circumferential direction. The above-mentioned annular lid body 26 includes a positioning step portion 28a and a positioning cylinder portion 2 that extend annularly in the circumferential direction.
6b is formed, and this positioning step portion 26a is hermetically bonded to the lower end of the cylindrical inner wall 24a.

Further, the outer peripheral edge of the annular lid body 26 is airtightly fitted and bonded to the inner peripheral surface of the cylindrical outer wall 24b, and is locked by the locking rib 24c. As a result, the inner cylindrical wall 24a and the outer cylindrical wall 24a!
24b, the lower end of the space formed between the annular lid body 26 and
A sealed chamber 27 is formed between the cylindrical inner wall 24a, the cylindrical outer wall 24b, and the annular lid 26.

A plurality of sub-intake ports 28 and rubber attachment holes 29 are formed at the F end of the cylindrical outer wall 24b. This cylindrical outer wall 2
A bumper rubber 30 (buffer member) having an angular cross-section is fitted to the lower edge of the bumper rubber 4b, and a locking protrusion 30a provided on the bumper rubber 30 is fitted into the rubber attachment hole 29.

Moreover, as shown in FIG. 1, a cylindrical portion 31 is formed on the lower central surface of the upper wall 25 of the cylindrical body 21, and a screw insertion hole 31a is formed in this cylindrical portion 31. In addition, the upper wall 25
At the position sandwiching the bolt insertion hole 31a, as shown in FIG.

As shown in Fig. 4, the cord insertion hole 32 and the water passage hole 33
is drilled. Furthermore, the upper wall 25 has a cross-shaped positional groove 34 for a protector that opens to the outer circumferential surface of the cylindrical body 1 and the cord insertion hole 32, and communicates with the outer circumferential surface of the cylindrical body 1 and the water passage hole 33. A discharge port forming groove 35 is formed.

A protrusion 36 is provided around the water passage hole 33 as shown in FIGS. 4 and 5.

The upper float 22 includes an L cover 37 in which an annular space 37a opening downward is provided along the periphery, and an annular groove 37.
A lower cover 38 that closes the open end of the annular space 37a and a foamed material 39 (see FIG. 2) such as foamed plastic disposed within the annular space 37a are inserted. In addition, the upper cover 37 of the F cover 38
The abutment part is hermetically bonded. This upper float 22 is brought into contact with one wall 25 of the cylindrical body 21,
A discharge port 1'' 40 is formed between the upper float 22 and the discharge port forming groove 35. This discharge [width A of 140
is set larger than the width B of the communication passage 41 between this and the water passage hole 33, and an intake hole 42 is provided in the portion of the lower cover 38 facing the discharge port 40 in close proximity to the communication passage 41, and this intake The hole 42 has an air hose 4 passing through the upper end of the upper cover 37.
3 is connected. Further, the lower cover 38 has a protrusion 36.
A protrusion 38a that engages is formed as shown in FIG.

44 is a sealing member disposed between the air hose 43 and the insertion hole 37b of the upper cover 37.

Also, inside the cylindrical body l is an electric pump 2 as shown in FIG.
3 is loosely inserted. This electric pump 23 is powered by a motor 4
5, a centrifugal impeller 46 fixed to the output shaft of the motor 45, and a suction port cover 47 that covers this impeller 46.
has. The lower end of this motor 45 protrudes from the peripheral surface! ! ! A 7ft plate 48 (flange) is provided, and a suction cover 47 is fixed to this rectifier plate 48 with bolts 49. Further, as shown in FIG. 1, FIG. 6, and FIG. 7, a plurality of notches 50 having a width W are formed in the current plate 48,
On the lower surface of the suction port cover 47, a cylindrical suction port 51 (see FIG. 3) that protrudes downward is formed concentrically and integrally. A tapered portion 47b is formed on the outer peripheral side of the cylindrical suction port 51 of the suction port cover 47.
By setting the outer diameter of the impeller 46 to be larger than the outer diameter φF of the impeller 46, the gap H between the tapered portion 47b and the rectifying plate 48 is reduced, preventing hands from entering the impeller 46 side, and ensuring safety by 6 days. are doing.

Moreover, by reducing the gap H, the gap between the discharge port 52 formed between the rectifying plate 48 and the cylindrical inner wall 24a becomes smaller, increasing waterway resistance.
By providing 0, this increase in waterway resistance is prevented.

Note that a filter 53 is disposed inside the cylindrical suction port 51. Further, a sealing member 54 is fitted to the peripheral edge of the suction port cover 47, and this sealing member 54 is fitted into the positioning tube portion of the annular lid body and engaged with the positioning step portion.

At the top of the motor 45 of such an electric pump 23 is a shaft portion 4.
5a is formed. This shaft portion 45a is fitted into a cylindrical portion 31 provided on the upper wall 25 of the cylindrical body 21, and a fixing screw 55 (fixing means) passing through the center of the L portion float 22 is attached to this shaft portion 45a. It is screwed on. The electric pump 23 and the two-part float 22 are fixed by the fixing screw 55, the cylindrical part 31 of the cylindrical body 21 is held between the electric pump 23 and the upper float 22, and the annular lid 26 is used as a suction port cover. 47, the cylindrical inner wall 24a, and the locking rib 2
4c, 55a is an operating knob for the fixing screw 55. A protector 57 is fitted to the power supply cord 56 connected to the motor 45, and this protector 57 is disposed in the position groove 34, and also partially connects the float 22 and the upper wall 21 of the cylindrical body 21.
It is clamped and fixed between.

Next, the operation of the submersible pump having such a configuration will be explained.

When a bath pump with this configuration is placed in hot water in a bathtub,
The submersible pump floats on the hot water surface due to the floating action of the closed chamber 27 of the cylindrical body 21. In this state, when the motor 45 is energized to rotate the impeller 46, hot water in the bathtub flows through the cylindrical suction port 51. It is sucked into the impeller 46 through the filter 8° communication port 47a.

This sucked hot water flows in the circumferential direction of the impeller 46 due to centrifugal force and is discharged from a discharge port formed by one gap and a notch 5o between the motor 45 and the cylindrical inner wall 24&.
Water passage passage 41. It is spouted out onto the hot water surface through the discharge port 40 at high speed.

At this time, the hot water flows out from the narrow communication path 41 into the wide discharge port 40 at high speed, so the communication path 41 of the discharge port 40
Negative pressure is generated near the inner wall of the portion adjacent to. Air taken in by the air hose 43 due to this negative pressure is sucked into the discharge port 40 from the intake hole 42.

Therefore, air is mixed in the form of bubbles inside the discharge port 40, and hot water mixed with a large amount of air bubbles is spouted from the discharge port 40.

On the other hand, if you want to clean the inside of the bath pump after such use, remove the fixing screw 55 as a fixing means and connect the two-part float 22 (discharge port forming member) and the electric pump 23 with the fixing screw 55. Unpin.

When the upper float 22 and the cylindrical body 21, which are discharge port forming members, are separated, the discharge port 4° serving as a nozzle is divided into upper and lower parts and the discharge port forming groove 35 is exposed, so that the inside of the discharge port can be easily cleaned. At this time, the fixation of the protector 57 of the electric pump 23 is released, so by pulling out the electric pump 23 below the cylindrical body 21, the inside of the cylindrical body 21 and the surrounding surface of the electric pump 23 can be cleaned. . Also 1
Assembly can also be easily performed by reversing the procedure.

In the embodiment described above, an example was shown in which a separately formed foam material 39 was disposed within the annular space 37a, but the present invention is not necessarily limited to this.

For example, by foaming and hardening polyurethane foam in the annular space 37a and filling the annular space 37a with a foam material 39', the upper cover 37 and the lower cover 38 are bonded together when the foam material 39' is foamed and hardened. It may be adhesively fixed by force, or a foam material 39 or 39' may be provided in the sealed chamber 27 of the cylindrical body 21.

Furthermore, by arranging the foam material 39 almost entirely within the annular space 37a formed between the lower cover 37 and the F cover 38, the volume of air within the annular space 37a is reduced. Therefore, even if the air in the annular space 37a is heated by the dry temperature and expands, the pressure acting on the inner surface of the cover y, 38 can be reduced due to the expansion of the air.
Cover 37. 38 can be prevented from deforming.

[Second Embodiment] FIGS. 9 and 10 show a second embodiment of the present invention.

In this embodiment, the cylindrical body 21 in the first embodiment. This embodiment shows a modification of the upper float 22.
Instead of the cylindrical body 21 and the upper float 22 made up of a plurality of members, a cylindrical body 21' and an upper float 22' formed from one piece by blow molding are used. Moreover, the upper and lower ends of the cylindrical body 21 are open, and there is a sealed chamber 27' extending to the upper and lower ends between the cylindrical inner wall 24a'' and the cylindrical outer wall 24b'' of the side wall 24' of the cylindrical body 21. A plurality of notched sub-intake ports 28' are formed at the lower end of the side wall 24'', and a positioning step portion 26a'' and a positioning tube portion are formed near the lower end of the cylindrical inner wall 24a''. 26b' is formed.

Other than this configuration, the configuration is the same as that of the first embodiment, so the same or similar parts are given the same reference numerals and the explanation thereof will be omitted.

In this embodiment, with the suction port cover 47 of the motor 45 fitted into the positioning cylinder part 26b' and in contact with the positioning stage part 26a', the upper float 22' and the motor 45 are connected by the fixing screw 55. By fixing the suction port cover 47 with
In the case of the 0-piece embodiment in which the cylindrical body 21 is clamped and fixed between the upper float 22' and the upper float 22', the operation is the same as that of the first embodiment, so a description thereof will be omitted.

(Effects of the Invention) As explained above, the present invention forms a closed chamber for generating buoyancy in the side wall of a cylindrical body whose lower end is open, and has a discharge port at the upper end of the cylindrical body that opens to the inner and outer circumferential surfaces. By providing a forming groove and closing the gap of the discharge port forming groove with the discharge port forming member disposed on the gap of the cylindrical body, the gap between the discharge port forming groove and the discharge port forming member is closed. a discharge port is formed in the discharge port, and an intake hole that opens upward and to the discharge port is provided in the discharge port forming member, and a lower part of the electric pump whose upper part is loosely inserted into the cylindrical body and a lower part of the cylindrical body A flow path is formed between the cylindrical body and the upper part of the electric pump by interposing a sealing means therebetween, and the suction and discharge ports of the electric pump are provided below and above the sealing means, respectively. , and the discharge [1
By removably fixing the discharge port forming member and the Ti electric pump with a fixing means that penetrates the forming member and the cylindrical body, the cylindrical body is connected to the discharge port forming member. I! Since it is configured to be clamped and fixed between the pump and the pump, the parts that need cleaning can be easily and quickly disassembled and cleaned easily.

In addition, the discharge port forming member is configured to be hollow from an upper cover and a lower cover that are connected to each other, and the lower cover is provided with the intake hole, and the air hose connected to the intake hole is supported by the L cover. With this configuration, the air hose can be supported in a state where the air introduction point [1 of the air hose is located at a higher position than iA + fii.

Furthermore, by filling the space formed between the upper cover and the lower cover with a foam material, even if the air in the space is heated by the temperature of thirst and expands, the air will not evaporate. Since the pressure acting on the inner surface of the cover can be reduced due to the tension, deformation of the cover can be prevented.

Furthermore, by forming the side wall of the cylindrical body double-inside and outside from a cylindrical inner wall and a cylindrical outer wall whose upper ends are closed by an rjj wall, a cylinder extending in the circumferential direction and opening downward is formed on the side wall. By forming a cylindrical space and closing the open end of the cylindrical space with an annular mounting body, a sealed chamber is formed on the side wall of the cylindrical body, and a positioning member extending annularly in the circumferential direction is provided on the annular lid body. A stepped portion is formed, a flange is formed at the lower part of the electric pump, and the flange is fitted into the positioning step portion, and the discharge port is formed by a fixing means that passes through the discharge port forming member and the cylindrical body. By removably fixing the member and the electric pump,
By configuring the annular lid body to be clamped and fixed between the side wall of the cylindrical body and the flange of the electric pump, the lower part of the electric pump can be positioned concentrically within the cylindrical body.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a first embodiment of a submerged pump according to the present invention. Figure 2 shows the first part with a part of the upper float cut away.
FIG. FIG. 3 is a bottom view of the submersible pump shown in FIG. 1. FIG. 4 is a perspective view of the L section of the cylindrical body shown in FIG. m1. FIG. 5 is an explanatory diagram showing the relationship between the cover and the section taken along the line v--v in FIG. 4. FIG. 6 is a perspective view of the cylindrical body shown in FIG. 1. FIG. 7 is a partially enlarged sectional view of FIG. 1. FIG. 8 is a sectional view showing a modification of the upper float in the first embodiment. FIG. 9 is a sectional view showing a +2'+2 embodiment of the present invention. FIG. 10 is a bottom view of FIG. 9. FIG. 11 is an explanatory diagram of a conventional submerged pump. 21... Cylindrical body 22... Upper float (discharge port forming member) 23...
Electric pump 24... Side wall 24a... Cylindrical inner wall 24b... Cylindrical outer wall 25... Upper wall 26... Annular lid body 26a... Positioning step portion 27... Sealed chamber 35... ...Discharge port forming groove 37...Top cover 37a...Lower cover 38...Lower cover area, 39'...Foamed material 40...Discharge port 42...Intake hole 43...Air hose 49...Fixing screw (fixing means)

Claims (4)

[Claims] (1) A closed chamber for generating buoyancy is formed in the side wall of a cylindrical body whose lower end is open, and a discharge opening forming groove is provided at the upper end of the cylindrical body and opens to the inner and outer circumferential surfaces, and the upper end of the cylindrical body is By closing the upper part of the ejection port forming groove with the disposed ejection port forming member, a ejection port is formed between the ejection port forming groove and the ejection port forming member. An intake hole that opens to the discharge port is provided, and a sealing means is interposed between the lower part of the electric pump whose upper part is loosely inserted into the cylindrical body and the lower part of the cylindrical body, so that the cylindrical body A fixing member that forms a flow path between the upper part of the electric pump, provides the suction port and the discharge port of the electric pump below and above the sealing means, and penetrates the discharge port forming member and the cylindrical body. A submerged bath pump, characterized in that the cylindrical body is clamped and fixed between the discharge port forming member and the electric pump by detachably fixing the discharge port forming member and the electric pump. (2) The discharge port forming member is configured in a hollow manner by an upper cover and a lower cover that are connected to each other, and the lower cover is provided with the intake hole, and the air hose connected to the intake hole is supported through the upper cover. The submersible pump according to claim 1, characterized in that: (3) The submerged pump according to claim 2, wherein the space formed between the upper cover and the lower cover is filled with a foaming material. (4) By forming the side wall of the cylindrical body into double inner and outer layers from a cylindrical inner wall and a cylindrical outer wall whose upper ends are closed by an end wall, the side wall extends in the circumferential direction and is open downward to the side wall. A cylindrical space is formed, and an open end of the cylindrical space is closed with an annular lid, thereby forming a sealed chamber on the side wall of the cylindrical body, and a position extending annularly in the circumferential direction of the annular lid. A flange is formed at the lower part of the electric pump, and the flange is fitted into the positioning part, and a fixing means passing through the discharge port forming member and the cylindrical body is used to secure the discharge port. 3. The annular lid body is clamped and fixed between the side wall of the cylindrical body and the flange of the electric pump by removably fixing the forming member and the electric pump. Bath pump.