JPH0536638B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a pump device applied to a facial beauty device or the like.

[Background technology]

Conventional pump devices with a diaphragm have an intake valve and an exhaust valve configured inside the diaphragm separately from the diaphragm (for example,
No. 50246, Utsuko No. 49-39921).

However, the structure and assembly are complicated due to the increased number of parts, and the internal volume of the pump chamber is reduced.

[Purpose of the invention]

An object of the present invention is to provide a pump device that can reduce the number of parts, is easy to assemble, and can reduce the decrease in internal volume of the pump chamber.

[Disclosure of the invention]

In the pump device of the present invention, a driving rod is formed in a bulging manner on the outer surface of the center, and a pair of tongue-like portions are extended on the peripheral edge, and a substantially C-shaped cut groove is formed in the tongue-like portion to provide an intake valve and an exhaust valve. forming a valve, and so that the valve seat contact surfaces of the intake valve and the exhaust valve are flush with the surface of the peripheral edge of the diaphragm,
A diaphragm in which the intake valve and the exhaust valve are thinly formed, a recess into which a peripheral edge of the diaphragm including the tongue-shaped portion is fitted, and a through hole through which the drive rod passes is formed in the recess. a block base; a base plate stacked on the block base and sandwiched together with the block base at the peripheral edge of the diaphragm to form a pump chamber together with the diaphragm; and a motor having an eccentric shaft fitted to the tip of the drive rod. A base comprising the block base and the substrate,
A valve seat with which the valve seat contact surfaces of the intake valve and the exhaust valve come into contact, and a communication portion communicating with the pump chamber are formed.

According to the configuration of this invention, since the intake valve and the exhaust valve are integrally formed on the peripheral edge of the diaphragm,
The number of parts can be reduced compared to the conventional example, and the decrease in the internal volume of the pump chamber can be reduced. Furthermore, by forming the intake valve and the exhaust valve thinly around the periphery of the diaphragm, the thickness of the diaphragm can be set so that the diaphragm can sufficiently perform its pumping function, and the valves such as the intake valve can operate smoothly. Moreover, since the valve seat abutting surfaces of the intake and exhaust valves and the surface of the peripheral edge of the diaphragm are flush with each other, there is no need to provide a step between the valve seat of the base made of the base plate and the block base and the diaphragm clamping surface. Therefore, the structure of the substrate can be simplified. Furthermore, by pinching the peripheral edge of the diaphragm, the elasticity of the intake valve etc. allows it to be brought into close contact with the valve seat, so there is no need to provide a separate means for applying preload. In addition, by passing the drive rod of the diaphragm through the through hole of the block base, fitting the periphery of the diaphragm into the recess of the block base, and sandwiching the periphery of the diaphragm between the base and the block base, the pump chamber and each Assembly is easier because the valve installation is completed at the same time.

Embodiment A facial beauty device to which an embodiment of the present invention is applied will be explained based on FIGS. 1 to 14. That is,
This pump device has a driving rod bulged on the outer surface of the central portion, and a pair of tongue-shaped portions 50 on the peripheral edge.
is extended, and an intake valve 8 and an exhaust valve 9 are formed by a substantially C-shaped groove in the tongue-shaped portion 50, and the intake valve 8
and each valve seat contact surface of the exhaust valve 9 is the diaphragm 2.
A diaphragm 2 in which the intake valve 8 and the exhaust valve 9 are thinly formed so as to be flush with the surface of the peripheral part of the diaphragm 2, and a recess 51 into which the peripheral part including the tongue-like part 50 of this diaphragm 2 is fitted are formed. At the same time, a block base body 17 having a through hole 52 formed in a recess 51 passing through the drive rod 1 is stacked on the block base body 17 and the peripheral edge of the diaphragm 2 is sandwiched between the block base body 17 and the pump chamber 4 together with the diaphragm 2. and a motor 7 having an eccentric shaft 6 that fits on the tip of the drive rod 1.The base body 5, which consists of a block base body 17 and the base plate 16, is provided with valve seats for the intake valves 8 and exhaust valves 9. Communication portions 12 and 13 are formed that communicate with the valve seats 10 and 11 and the pump chamber 4 with which the contact surfaces abut.

As shown in FIGS. 3, 6, and 7, the diaphragm 2 is made of rubber and is formed into a substantially bowl shape, and the peripheral edge 3 is formed into a flange shape and has a tongue-shaped portion 50. is forming.

A drive rod 1 formed in a bulge on the diaphragm 2
protrudes from the outer surface of the substantially bowl-shaped center of the diaphragm 2, and has a bearing hole 14 (FIG. 7) formed at its tip. A cylindrical bearing 15 is fitted into the bearing hole 14 as shown in FIG.

The base body 5 includes a substrate 16 and a block base body 17 in the embodiment. As shown in FIGS. 3 and 9, the block base 17 has a recess 51 into which the peripheral edge of the diaphragm 2 is fitted, and a through hole 52 passing through the drive rod 1 is formed in the recess 51. Hole 4 formed in base 17
6, 47 through the connecting member 18 such as a split pin,
By connecting the substrate 16 to the block base 17, the peripheral edge 3 of the diaphragm 2 is sandwiched so as to be closely fixed to the substrate 16, and the substrate 16 and the diaphragm 2 form a pump chamber 4.

The block base 17 holds the internal parts of the facial beauty device, and is attached to a cylindrical housing 19 formed by mating a pair of half cylinders 20a and 20b, as shown in FIG.

The motor 7 is held on a block base 17.

A mounting portion of the eccentric shaft 6 is attached to the motor shaft 21 of the motor 7, and the eccentric shaft 6 is supported and fitted into the cylindrical bearing 15. The eccentric shaft 6 forms a small gear 22 concentrically with the motor shaft 21.
Therefore, when the motor 7 rotates, the eccentric shaft 6 rotates, the drive rod 1 rotates, the diaphragm 2 reciprocates, and the pump chamber 4 is compressed and expanded.

As shown in FIG. 6, the intake valve 8 has a substantially C-shaped groove formed in a tongue-shaped portion 50 formed on the peripheral edge 3 of the diaphragm 2, and has a concave groove on the base plate 16 side and a groove on the block base body 17 side. It is formed thin so that it is flush with the surface. Valve seat 1 for intake valve 8
0 is formed on the block base body 17, and a communication portion 12, which is an example of a groove communicating with the pump chamber 4, is formed on the base plate 16. This intake valve 8 is pulled through the communication portion 12 by the expansion operation of the pump chamber 4, moves away from the valve seat 10, opens within the plate thickness of the peripheral portion 3, and comes into close contact with the valve seat 10 by the compression operation of the pump chamber 4.

The exhaust valve 9 has a substantially C-shaped groove formed in a tongue portion 50 formed at a position approximately 90 degrees away from the intake valve 3 on the peripheral edge 3 of the diaphragm 2, and is recessed on the block base 17 side. It is formed thin so that the substrate 16 side is flush with the substrate 16 side. A valve seat 11 for the exhaust valve 9 is formed on a substrate 16, and a communication portion 13, which is an example of a groove communicating with the pump chamber 4, is formed on the substrate 16. The exhaust valve 8 is pushed through the communication portion 13 by the compression operation of the pump chamber 4, moves away from the valve seat 11, opens within the thickness of the peripheral edge 3, and comes into close contact with the valve seat 11 by the expansion operation of the pump chamber 4.

Therefore, during the intake stroke of the diaphragm 2, air is sucked through the intake valve 8, and is sucked into the pump chamber 4 through the communication portion 12 as shown by the arrow in FIG. The exhaust valve 11 is opened through the pump chamber 4, and the exhaust is exhausted outside the pump chamber 4.

A facial beauty device to which this pump device is applied will be explained. 23 is a handle for switching between rotation and suction; the handle 23 is slidably provided in the housing 19;
will be provided. Further, a hole 25 is formed in the wall portion of the pump chamber 4 of the substrate 16, and a normally open valve 2 is formed on the outer surface of the hole 25.
6 is provided. As shown in FIGS. 10 and 11, the normally open valve 26 is attached to the base plate 16 by thermally deforming a thermally deformable pin 28 at the base end of an inverted-shaped leaf spring 27, and has a valve body 29 at its tip. is provided opposite the hole 25. By sliding the handle 23 and pushing the tip of the leaf spring 27 of the normally open valve 26 with the end of the leaf spring 24, the hole 25 is closed with the valve body 29 as shown in FIG. 1, and when the handle 23 is slid in the opposite direction, the leaf spring 27 The valve body 29 opens from the hole 25 by the return operation. When the hole 25 is opened, the pump chamber 4 communicates with the outside, so even if the diaphragm 2 operates, the pump does not operate.

30 is the block base 17 as shown in FIG.
One end of the cylinder shaft 30 opens into the valve seat 10 of the intake valve 8, and the tip opens into the housing 19.
A bush 32 with a gasket 32 attached to its outer periphery is attached to the tip of the cylinder shaft 30, facing the opening 31 of the cylinder.

34 is a suction cup for massaging the surface of the skin, which is removably fitted into the gasket 32 of the bush 33 and communicates with the cylinder shaft 30. Therefore, when the pump operates, the intake valve 8 opens and the suction cup 3
Since a negative pressure is applied to the suction cup 4, when the surface of the suction cup 34 is brought into contact with the skin, the skin is suctioned and massaged.

As shown in FIGS. 1 and 12, 35 is a battery that supplies power to the motor 7, and is housed on both sides of the motor 7. A battery replacement cover 44 that closes the rear end opening of the housing 19 is opened. exchanged by This cover 44 is detachably attached to the housing 19 by a hook 46.

36, as shown in FIGS. 12 and 14,
This is a switch handle for controlling the motor 7, and is slidably provided in the housing 19. A conductive spring 37 is provided on the back surface of the switch handle 36, and terminals 38, 39 that connect to and separate from the conductive spring 37 are provided on the block base 17. , 39 so that the motor 7 and battery 35 are connected in series.
Connected by 0. Therefore, by sliding the switch handle 36, the motor 7
starts or stops.

As shown in FIG. 1, a crown gear 41 meshes with the small gear 22, is rotatably fitted onto the cylinder shaft 30, and is supported by an elastic pawl 47 integrally formed at the end of the bush 33. Further, a rotating brush mounting portion 42 is formed in the center of the crown gear 41.

As shown in FIG. 13, 43 is a rotating brush for washing the face, which is removably fitted into the rotating brush attachment part 42 with the suction cup 34 removed.
When the motor 7 operates with the normally open valve 26 open and the small gear 22 turns on, the crown gear 41 rotates and the rotating brush 43 rotates. In addition, 45 is a rotating brush 43
This is a fixed brush that is attached to the opening 31 when the holder is installed.

According to this embodiment, the intake valve 8 and the exhaust valve 9
Since it is integrally formed on the peripheral edge 3 of the diaphragm 2, the number of parts can be reduced compared to the conventional example, and furthermore, the decrease in the internal volume of the pump chamber 4 can be minimized. In addition, by forming the intake valve 8 and the exhaust valve 9 thinly on the peripheral edge of the diaphragm 2, the thickness of the diaphragm 2 can be set so that the diaphragm 2 can sufficiently perform its pumping function, and the Allows for smooth operation. Moreover, since the valve seat abutting surfaces of the intake valve 8 and the exhaust valve 9 and the peripheral surface of the diaphragm 2 are flush with each other, the valve seat of the base body 6 consisting of the base plate 16 and the block base body 17 and the diaphragm sandwiching surface are flush with each other. There is no need to provide a step, so the structure of the base 5 can be simplified. Furthermore, by sandwiching the peripheral edge of the diaphragm 2, the elasticity of the intake valve 8, etc. allows them to be brought into close contact with the valve seat, so there is no need to provide a separate means for applying preload. Further, the driving rod 1 of the diaphragm 2 is passed through the through hole 52 of the block base 17, the peripheral edge of the diaphragm 2 is fitted into the recess 51 of the block base 17, and the peripheral edge of the diaphragm 2 is inserted between the base 16 and the block base 17. By sandwiching them together, the installation of the pump chamber 4 and each valve can be completed at the same time, making assembly easier.

〔Effect of the invention〕

According to the pump device of the present invention, since the intake valve and the exhaust valve are integrally formed on the periphery of the diaphragm, the number of parts can be reduced compared to the conventional example, and the decrease in the internal volume of the pump chamber can be reduced. can. Furthermore, by forming the intake valve and exhaust valve thinly on the peripheral edge of the diaphragm, the thickness of the diaphragm can be set so that the diaphragm can sufficiently perform its pumping function, and the valves such as the intake valve can operate smoothly. Moreover, since the valve seat abutting surfaces of the intake and exhaust valves and the surface of the peripheral edge of the diaphragm are flush with each other, there is no need to provide a step between the valve seat of the base made of the base plate and the block base and the diaphragm clamping surface. Therefore, the structure of the base body can be simplified. Furthermore, by pinching the peripheral edge of the diaphragm, the elasticity of the intake valve etc. allows it to be brought into close contact with the valve seat, so there is no need to provide a separate means for applying preload. In addition, by passing the drive rod of the diaphragm through the through hole of the block base, fitting the periphery of the diaphragm into the recess of the block base, and sandwiching the periphery of the diaphragm between the base plate and the block base, the pump chamber and each Since the installation of the valves is completed at the same time, assembly is easier.

[Brief explanation of drawings]

1 is a cross-sectional view taken along the line shown in FIG. 12 of a facial beauty device to which an embodiment of the present invention is applied; FIG. 2 is a cross-sectional view taken taken along the line taken in FIG. 12; FIG. The figure is a perspective view of the outer surface of the board, FIG. 5 is a cross-sectional view taken along the line V-V, FIG.
The figure is a bottom view of the block base holding the motor, Figure 9 is a partial cross-sectional view showing the connection structure between the base plate and the block base, Figure 10 is an exploded perspective view of the normally open valve, and Figure 11 is an exploded perspective view of the normally open valve.
The figure is an enlarged perspective view of the normally open valve installed, FIG. 12 is a side view of the facial beauty device, FIG. 13 is a cross-sectional view of the rotating brush installed, and FIG. 14 is an external perspective view. DESCRIPTION OF SYMBOLS 1... Drive rod, 2... Diaphragm, 3... Peripheral part, 4... Pump chamber, 5... Base, 6... Eccentric shaft, 7... Motor, 8... Intake valve, 9... Exhaust valve , 10, 11... Valve seat, 12, 13... Communication portion, 50... Tongue-shaped portion, 51... Concave portion, 52...
Through hole.

Claims (1)

[Scope of Claims] 1. A drive rod is bulged on the outer surface of the center, and a pair of tongue-shaped portions are extended on the peripheral edge, and a substantially C-shaped groove is formed in the tongue-shaped portion to connect the intake valve and the exhaust gas. A diaphragm that forms a valve, and the intake valve and the exhaust valve are formed thin so that the valve seat contact surfaces of the intake valve and the exhaust valve are flush with the surface of the peripheral edge of the diaphragm; a block base having a recess into which the peripheral edge of the diaphragm including the tongue-like part is fitted, and a through hole through which the drive rod passes through the recess; a base plate sandwiched between the peripheral edge of the diaphragm and forming a pump chamber together with the diaphragm; and a motor having an eccentric shaft that fits into the tip of the drive rod;
The pump device includes a valve seat that the valve seat contact surfaces of the intake valve and the exhaust valve contact, and a communication portion that communicates with the pump chamber.