JP2002295441A - Suction cup with suction pump - Google Patents

Abstract

(57) [Summary] The present invention provides a method for mounting a suction cup body on a wall or the like, in which air inside the suction cup body is removed to the outside via the suction pump, so that a force for pressing the suction cup body is almost eliminated. It is an object of the present invention to provide a suction cup which can obtain a large fixing force by increasing the degree of vacuum in the suction cup main body without any need. A suction pump-equipped suction cup is provided with a suction pump-equipped discharge pipe communicating from the outside of the suction cup main body to the inside of the suction cup main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction cup with a suction pump used when a hanger or the like is mounted on a wall.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 11 and 12, a bottomless box-shaped base (2A) having a vent (3A) on the upper surface, and a suction cup body (4A ) And the base (2A)
An operation rod (5A) provided so as to be vertically slidable through the center of the upper surface and the center of the suction cup body (4A), and the lower end of the operation rod (5A) is provided inside the suction cup body (4A). The flange (6A) is fixed, and the base at the center of the operation rod (5A)
A ring (7A) is fixed between (2A) and the suction cup body (4A),
Further, the operating rod (5A) is urged upward by a spring (8A), and the suction body (4A) is provided with exhaust ports (9A, 9A) which are closed by a flange (6A) in this state. Suction cup (1A) is provided (JP-A-3-24312).
issue). In the conventional suction cup (1A), when the suction cup (1A) is mounted on a wall surface, the operation rod (5A) is pushed in, so that the suction cup body (1A) is inserted through the ring (7A) of the operation rod (5A). 4A) against the wall and flange (6A) of the operating rod (5A).
The exhaust port (9A, 9A) closed by the opening is opened to discharge the air inside the suction cup body (4A) to the outside through the ventilation port (3A) of the base (2A), and the inside of the suction cup body (4A) is opened. Is brought into a reduced pressure state. Furthermore, in order to remove the suction cup (1A) from the wall, the suction cup body (4A)
In order to take in air, the operating rod (5A) needs to be pushed in to open the exhaust ports (9A, 9A) of the suction cup body (4A).

[0003]

However, when removing the suction cup (1A) from the wall surface as described above, the operating rod (5A) is pushed in to open the exhaust ports (9A, 9A) of the suction cup main body (4A). In order to achieve this, as shown in FIG. 12, a gap between the flange (6A) of the operation rod (5A) and the wall surface must be ensured, and the gap between the suction body (4A) and the wall surface must be secured. The space S remains in the suction cup body (4A).
There is a problem that the degree of vacuum in the interior is reduced by the space S, the fixing force of the suction cup (1A) is also reduced, and the suction cup (1A) easily falls from the wall surface.

[0004]

According to the present invention, as a means for solving the above-mentioned conventional problems, a discharge pipe with a suction pump (3) communicating from the outside of the suction body (2) to the inside of the suction body (2).
The present invention provides a suction cup (1) equipped with a suction pump. The suction pump is a cylinder that communicates with the discharge pipe (3)
(5), a piston (6) slidably mounted in the cylinder (5), and an exhaust means for discharging air to the outside, and the main body (11) of the piston (6) has Discharge hole with check valve
(14,14) is provided, and the check valve
(16, 16) is set so that it opens when the piston (6) slides in the pushing direction, closes when the piston (6) slides in the drawing direction, and also reversely moves to the discharge pipe (3). A check valve (7) is mounted, and the check valve (7) is set so that it closes when the piston (6) slides in the pushing direction and opens when the piston (6) slides in the drawing direction. It is desirable that
Further, it is desirable that the exhaust means is a discharge port (10, 10) provided on the side of the cylinder (5) opposite to the discharge pipe connection,
Further, the discharge pipe (3) has an air inlet (9) with a stopper (8).
Is desirably provided. Alternatively, it is desirable that the discharge hole (19) with a check valve of the piston body (20) penetrates in the piston rod (22) in the axial direction and communicates with the outside to also serve as an exhaust means. It is desirable that the pipe (3) is provided with an air inlet (9) with a stopper (8). Alternatively, the suction pump communicates with the discharge pipe (3) and has a check valve-equipped discharge hole (24) on the opposite side, and comprises a cylinder (25) that can expand and contract in the axial direction, and the check valve (27) Is preferably set so that it opens when the cylinder (25) is compressed and closes when the cylinder (25) is extended, and the discharge pipe (3) has an air inlet (9) with a stopper (8). Is desirably provided.

[0005]

[Function] When the suction cup with suction pump (1) is mounted on a wall or the like, the suction pump is operated to remove the air inside the suction cup body (2) to the outside through the discharge pipe (3). The air pressure inside and inside the discharge pipe (3) decreases, and outside air tends to flow into the suction cup body (2) via the discharge pipe (3). Is discharged, the check valve of the suction pump is automatically closed to prevent external air from flowing into the suction body (2), and the suction body (2)
The inside is maintained at a high degree of vacuum to obtain a large fixing force. When removing the suction cup with suction pump (1) from a wall or the like, if the air inlet (9) with the stopper (8) is provided at a predetermined location of the discharge pipe with suction pump (3), the stopper ( 8) Remove and open the inlet (9), the outside air
(9) flows into the suction cup body (2) and breaks the vacuum inside the suction cup body (2), so that the suction cup (1) can be easily removed from the wall surface.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIGS.
An example will be described with reference to FIG. In this embodiment,
The suction cup (1) with a suction pump shown in FIGS. 1 and 2 has a dome-shaped suction cup body (2) and a suction cup body (2) attached to a predetermined position of the suction cup body (2) from the outside of the suction cup body (2). 2) The discharge pipe with suction pump (3) communicating with the inside of, and the suction cup body (2)
And a handle (4) provided on the upper part of the vehicle. The sucker body (2) is made of a material having elasticity and airtightness such as rubber and elastomer, and the handle (4) is made of a hanger, a hook, a soap holder for a bathroom, a chair used in a bathroom, etc. The object for the purpose of fixing or holding is mounted.

[0007] The suction pump of the discharge pipe (3) has a cylinder (5) connected to the discharge pipe (3) on the lower surface, and a piston (6) mounted vertically slidably in the cylinder (5).
A check valve (7) is mounted on the upper side of the discharge pipe (3) at the cylinder connecting side, and an air inlet (8) with a stopper (8) is provided at a predetermined position on the side of the discharge pipe (3). 9) is provided,
A plurality of discharge ports (10, 10) are provided on the upper surface of the cylinder (5) on the side opposite to the discharge pipe connection. The piston (6) includes a piston body (11) inserted into the cylinder (5), and the piston (6) protruding upward from the piston body (11).
It comprises a piston rod (12) penetrating the upper surface and a flange (13) provided at the upper end of the piston rod (12), and the piston body (11) has a plurality of discharge holes (14) with check valves. , 14), and the outer upper surface of the cylinder (5) and the piston
The piston rod is located between the flange (13) and the lower surface of (6).
(12) has a spring (1) for urging the piston (6) upward.
5) is wound.

When the suction cup with suction pump (1) is mounted on a wall or the like, as shown in FIG. 3, the piston (6) is slid in the pushing direction to increase the air pressure in the cylinder (5).
The pneumatic pressure allows the exhaust hole (14,
The check valves (16, 16) of (14) are pushed upward to open the discharge holes (14, 1).
4) is opened, and the air inside the cylinder (5) is discharged from the discharge port (10, 10) of the cylinder (5) through the discharge hole (14, 14) with a check valve of the piston body (11). Is discharged to In this case, when the air inside the cylinder (5) is exhausted and the air pressure inside the cylinder (5) is no longer applied to the check valves (16, 16) of the piston body (11), the external air is conversely discharged. Drain holes (14,
14) from the cylinder (5).
The check valves (16, 16) of the piston body (11) automatically close the discharge holes (14, 14) by their suction force and elastic restoring force, and air flows into the cylinder (5). To prevent At this time, the check valve (7) of the discharge pipe (3) remains closed.

Then, as shown in FIG.
When the piston (6) slides in the withdrawal direction due to the urging force, etc., and the air pressure in the cylinder (5) becomes lower than the air pressure in the suction cup body (2), the discharge pipe (3) is stopped by the differential pressure. valve
(7) is pushed open to open, and the air inside the suction cup body (2) is sent into the cylinder (5) through the check valve (7) of the discharge pipe (3). In this case, when the air inside the suction cup body (2) is sucked and the air pressure inside the cylinder (5) and the air pressure inside the suction cup body (2) become equal and the differential pressure is no longer applied, the cylinder
(5) The air inside tries to flow into the suction cup body (2) from the discharge pipe (3) in reverse, but the check valve (7) of the discharge pipe (3) is automatically turned by the elastic restoring force. The discharge pipe (3) is closed to prevent air from flowing into the suction cup body (2). At this time, the check valves (16, 16) of the piston body (11) remain closed. After the air inside the suction cup body (2) is discharged in this way, the check valves (7, 16) are automatically closed to prevent external air from flowing into the suction cup body (2). , The suction cup body
(2) The inside is maintained at a high degree of vacuum to obtain a large fixing force.

When removing the suction cup (1) with a suction pump from a wall or the like, remove the plug (8) of the discharge pipe (3) and remove the air inlet.
When (9) is opened, external air flows into the suction body (2) from the air inlet (9) and breaks the vacuum inside the suction body (2). ) Can be removed from the wall.

[Embodiment 2] FIGS. 5 to 7 show another embodiment. In this embodiment, a plurality of outlets (10, 10) are provided on the upper surface of the cylinder (5) on the opposite side of the outlet pipe connection as the exhaust means of the suction pump in the first embodiment shown in FIGS. On the other hand, as shown in FIG. 5, the piston (18) slidably mounted in the cylinder (17) having no discharge port is slidably inserted into the cylinder (17) and has a check on the lower surface. A piston main body (20) having a valve-equipped discharge hole (19) opened, and the cylinder (17) being pushed upward from the piston main body (20).
The discharge hole with check valve (1
9) A piston rod (22) provided with a check valve (21), and a flask-shaped valve provided in communication with the upper side of the piston rod (22) and having a discharge hole (19) opened on the upper surface. Flange part
(23), and a discharge hole with a check valve of the piston body (20).
(19) also serves as exhaust means by penetrating the piston rod (22) in the axial direction and communicating with the outside. Further, a spring (15) for urging the piston (18) upward is provided on the piston rod (22) between the outer upper surface of the cylinder (17) and the lower surface of the flange portion (23) of the piston (18). It is wound.

When the suction cup with suction pump (1) is mounted on a wall or the like, the piston (18) is slid in the pushing direction to increase the air pressure in the cylinder (17) as shown in FIG.
The check valve (21) of the piston rod (22) is pushed upward by air pressure to open the discharge hole (19), and the air inside the cylinder (17) is discharged from the piston (18) with the check valve. It is discharged outside via (19). In this case, similar to the first embodiment, the cylinder
(17) The air inside is discharged and the check valve of the piston rod (22) is released.
When the air pressure in the cylinder (17) is no longer exerted on the (21), external air conversely flows from the discharge hole (19) into the cylinder (17).
The check valve (21) of the piston rod (22) automatically closes the discharge hole (19) by its suction force and elastic restoring force, and air is forced into the cylinder (17). ) To prevent inflow. At this time, the check valve (7) of the discharge pipe (3) remains closed.

[0013] Then, as shown in FIG.
When the piston (18) slides in the withdrawal direction due to the urging force, etc., and the air pressure in the cylinder (17) becomes lower than the air pressure in the suction cup body (2), the discharge pipe (3) is stopped by the differential pressure. valve
(7) is pushed open to open, and the air inside the suction cup body (2) is sent into the cylinder (17) through the check valve (7) of the discharge pipe (3). In this case, as in the first embodiment, when the air inside the suction cup body (2) is sucked and the air pressure inside the cylinder (17) and the air pressure inside the suction cup body (2) become equal and the differential pressure is no longer exerted, the cylinder ( 17) The air inside tries to flow in the suction pipe body (2) from the discharge pipe (3) in reverse, but the check valve (7) of the discharge pipe (3) is automatically turned on by the elastic restoring force. Discharge pipe (3)
To prevent air from flowing into the suction cup body (2). At this time, the check valve (21) of the piston rod (22) remains closed. After the air inside the suction cup body (2) is discharged in this way, the check valves (7, 21) are automatically closed to prevent external air from flowing into the suction cup body (2). The inside of the suction cup body (2) is maintained at a high degree of vacuum, and a large fixing force is obtained.

When removing the suction cup (1) with a suction pump from a wall or the like, remove the plug (8) of the discharge pipe (3) to remove the air inlet.
When (9) is opened, external air flows into the suction body (2) from the air inlet (9) and breaks the vacuum inside the suction body (2) as in the first embodiment. , Easily the sucker
(1) can be removed from the wall.

[Embodiment 3] FIGS. 8 to 10 show still another embodiment. In this embodiment, as compared with the first embodiment shown in FIGS. 1 to 4, the suction pump of the discharge pipe (3) is connected to the discharge pipe (3) on the lower surface as shown in FIG. A cylinder (25) having a check valve-equipped discharge hole (24) is provided on the upper side of the side opposite to the discharge pipe communication side. A spring (26) biasing in the extension direction is provided inside.

When the suction cup (1) with a suction pump is mounted on a wall or the like, the cylinder (25) is compressed to increase the air pressure in the cylinder (25) as shown in FIG. The check valve (27) at the top of the side is pushed open and the discharge hole (24) is opened, and the air inside the cylinder (25) is discharged through the discharge hole (24) with the check valve of the cylinder (25). Is discharged to In this case, as in the first embodiment, when the air inside the cylinder (25) is exhausted and the air pressure inside the cylinder (25) is no longer applied to the check valve (27) of the cylinder (25), the external air is released. Conversely, the suction hole (24) tends to be sucked into the cylinder (25), but the check valve (27) of the cylinder (25) automatically receives the discharge hole (24) by its suction force and elastic restoring force. 24) is closed to prevent air from flowing into the cylinder (25). At this time, the check valve (7) of the discharge pipe (3) remains closed.

Then, as shown in FIG.
When the cylinder (25) is extended by the urging force of (6) and the air pressure in the cylinder (25) becomes lower than the air pressure in the suction cup body (2), the check valve (3) of the discharge pipe (3) is generated due to the differential pressure. 7) is pushed open to open, and the air inside the suction cup body (2)
Through the check valve (7) into the cylinder (25).
In this case, as in the first embodiment, when the air inside the suction cup body (2) is sucked and the air pressure inside the cylinder (25) and the air pressure inside the suction cup body (2) become equal and the differential pressure is no longer applied, the cylinder ( 25) Air inside the suction pipe (3)
(2) The check valve of the discharge pipe (3)
(7) automatically closes the discharge pipe (3) by the elastic restoring force to prevent air from flowing into the suction cup body (2).
At this time, the check valve (27) on the upper side of the cylinder (25) remains closed. After the air inside the suction cup body (2) is discharged in this way, the check valve (7, 27) automatically closes to prevent external air from flowing into the suction cup body (2). ,
The inside of the suction cup body (2) is maintained at a high degree of vacuum, and a large fixing force is obtained.

When removing the suction cup (1) with a suction pump from a wall or the like, remove the plug (8) of the discharge pipe (3) and remove the air inlet.
When (9) is opened, external air flows into the suction body (2) from the air inlet (9) and breaks the vacuum inside the suction body (2) as in the first embodiment. , Easily the sucker
(1) can be removed from the wall.

The suction cup with suction pump (1) of the present invention can be used in the same manner as in the above embodiment in water or hot water when it is used by attaching it to a soap holder for a bathroom, a chair used in a bathroom, or the like. It is possible to

[0020]

Therefore, according to the present invention, when the suction cup body is mounted on a wall or the like, the air inside the suction cup body is discharged to the outside through the suction pump, so that almost no force is required to press the suction cup body. A large fixing force can be obtained by increasing the degree of vacuum in the suction cup body.

[Brief description of the drawings]

 1 to 4 show one embodiment of the present invention.

FIG. 1 is a perspective view.

FIG. 2 is a side sectional view.

FIG. 3 is a side sectional view showing a state in which a piston is pushed.

FIG. 4 is a side sectional view showing a state where a piston is pulled out.

FIG. 5 is a side sectional view of another embodiment.

FIG. 6 is a side sectional view showing a state where a piston is pushed in another embodiment.

FIG. 7 is a side sectional view showing a state where a piston is pulled out in another embodiment.

FIG. 8 is a side sectional view of still another embodiment.

FIG. 9 is a side sectional view showing a state where a piston is pushed in yet another embodiment.

FIG. 10 is a side sectional view showing a state where a piston is pulled out in still another embodiment.

FIG. 11 is a side sectional view of a conventional example.

FIG. 12 is a side sectional view of a conventional example.

[Explanation of symbols]

 1 Suction cup with suction pump 2 Suction cup body 3 Discharge pipe with suction pump 5,17,25 Cylinder 6,18 Piston 7 Check valve 8 Plug 9 Air intake 10 Drain port 14,19,24 Drain hole with check valve 16,16 21,27 Check valve 11,20 Piston body 12,22 Piston rod

Claims (8)

[Claims] 1. A suction cup with a suction pump, wherein a suction pipe with a suction pump communicating from the outside of the suction cup body to the inside of the suction cup body is attached. 2. The suction pump comprises a cylinder connected to a discharge pipe, a piston slidably mounted in the cylinder, and exhaust means for discharging air to the outside. One or a plurality of discharge holes with a check valve are provided, and the check valve is set so as to open when the piston slides in the pushing direction and close when the piston slides in the drawing direction. 2. The check valve according to claim 1, further comprising a check valve attached to the discharge pipe, the check valve closing when the piston slides in the pushing direction and opening when the piston slides in the drawing direction. Suction cup with suction pump as described. 3. A suction cup with a suction pump according to claim 2, wherein said exhaust means is a discharge port provided on a side of the cylinder opposite to a discharge pipe. 4. The suction cup with a suction pump according to claim 2, wherein said discharge pipe is provided with an air intake port with a stopper. 5. The suction cup with a suction pump according to claim 2, wherein the discharge hole with a check valve of the piston body penetrates through the inside of the piston rod in the axial direction and communicates with the outside to serve also as an exhaust means. 6. A suction cup with a suction pump according to claim 5, wherein said discharge pipe is provided with an air intake port with a stopper. 7. The suction pump is connected to a discharge pipe and has a discharge hole with a check valve on the opposite side, and comprises a cylinder which can expand and contract in the axial direction. The check valve opens when the cylinder is compressed. The suction cup with a suction pump according to claim 2, wherein the suction cup is set to close when the cylinder is extended. 8. A suction cup with a suction pump according to claim 7, wherein said discharge pipe is provided with an air intake port with a stopper.