JPS639854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum cleaner equipped with a plurality of connection ports installed in each room, which are centrally piped to a dust collection section installed in one place.

In this type of vacuum cleaner, it is not expected that the suction hose connected to the connection port body will be used at multiple locations, and therefore, when used in such a manner, the power will normally be insufficient. In addition, the suction hose is stored in the storage part while connected to the connection port body, and if the pipe line is not blocked when it is stored in the storage part, a leak will occur in that part and the suction capacity will decrease. It's something you end up doing.

It is also conceivable to use the conventional technique of closing the connection port body with a lid to airtightly close the storage section that stores the suction hose with a lid, but the storage section is connected to the connection port body. Since the suction hose is stored in the suction hose as it is, it is quite large, and it is difficult to close it with a lid because it is difficult to ensure the flatness of the lid.

The present invention has been made in view of the above, and provides a vacuum cleaner in which the pipe line is reliably closed in the part of the connection port housing the suction hose that is not in use, thereby preventing the occurrence of leakage. The purpose is to obtain.

In this invention, a plurality of connection ports connected by pipes to a dust collection part maintained in a negative pressure state by an electric blower are installed in a storage part formed on the floor or wall of a room,
These storage units are provided with lids that can be opened and closed to close their openings, and a suction hose stored in the storage unit is connected via a connecting pipe connected to the connection port body, and the suction air of the connection port body is connected to the suction hose stored in the storage unit. A valve body that opens and closes the suction air passage is provided in the passageway and biased in the opening direction, and an interlocking rod that moves in accordance with the opening and closing of the lid and contacts the lid to close the valve body when the lid is closed. It has been established. Therefore, when the suction hose is stored in the storage compartment and the lid of that part is closed, the interlocking rod operated by the lid closes the valve body provided in the suction air path, thereby closing the unused connection. The structure is such that it is possible to reliably prevent leakage from occurring at the mouth.

A first embodiment of this invention will be described based on FIGS. 1 to 5. A main body case 2 containing a built-in electric blower (not shown) is attached on top of a dust case 1 which is a dust collection section containing a filter (not shown). Next, a storage section 3 is formed on the floor or wall of each room, and a connection port body 5 connected to the dust case 1 through a conduit 4 is installed in these storage sections 3.

Next, suction tools such as a suction hose 6, an extension pipe 7, and a floor brush 8 are provided which are connected to these connection ports 5 in sequence. The suction hose 6 has a grip tube 10 provided with a remote control switch 9 at one end, and a connection tube 11 to the connection port 5 at the other end.

As shown in FIG. 5, the electric blower 12 built into the main body case 2 and the primary side of the transformer 13 are connected to a power source 14 in parallel. Although not shown, the remote control switch 9 includes a conducting wire buried in the suction hose 6 and a conducting wire extending along the conduit 4 and connected to the conducting wire by remote terminals a and b inside the connection port body 5. It is connected to the secondary side of the transformer 13 while forming a remote line 15. The relay switch 16 is turned ON by the secondary voltage of the transformer 13.
is connected between the electric blower 12 and the power source 13.

A connecting pipe 11 of the suction hose 6 is formed in an L shape and is fitted into the connecting port body 5 so as to be rotatable while being prevented from coming off. Thus, the valve body 17 is rotatably attached to the connection port body 5 while being biased in the opening direction by a torsion spring (not shown).
The valve body 17 integrally has a thin and strong lever 19 which projects outward from a slit hole 18 formed in the connection port body 5. The slit hole 18 is covered with a rubber plate (not shown) having slits whose edges are joined to each other at a portion facing the slit hole 18, and airtightness is maintained without impairing the operation of the lever 19. In addition, the connection port body 5 has a valve body 17.
Packing 20 is provided to be joined to the peripheral edge of. Further, the valve body 17 is connected to a protrusion 21 located at the end of the extending surface of the lever 19 on the outside of the connection port body 5.
It has integrally. An operating rod 22, one end of which is opposed to the projecting piece 21, is slidably held at a corner of the storage section 3. A lid 23 that covers the operating rod 22 other than the end thereof is attached to the storage portion 3 so as to be openable and closable.

Thus, the storage section 3 is provided with a slide rod 24 as an interlocking rod. This slide rod 24 is prevented from coming off by a stopper 25, and is held slidably while being biased toward the lid 23 by a spring 26, and when pressed by the lid 23, the lever 19 of the valve body 17 in the closed state engaged.

In such a configuration, when the lid 23 is opened to take out the suction hose 6 from the storage section 3, the slide rod 24 slides to the right to release the lever 19, as shown in FIG. As a result, the valve body 17 is rotated in the opening direction by the force of the torsion spring. Therefore, turn on remote control switch 9.
The electric blower 12 is driven by the electric blower 12, but since the air passage is always open, the air passage becomes a vacuum and the electric blower 12 does not overheat.

After use, store the suction hose 6 in the storage section 3, press the operating rod 22 to close the valve body 17, and close the lid 23.
Close. The slide rod 24, which slid to the left in response to the lid closing operation, engages with the lever 19 and closes the valve body 1.
7 in the closed state. Therefore, it is possible to prevent a decrease in the wind force when cleaning using the suction hose 6 in another room.

Next, a second embodiment of the present invention will be described based on FIGS. 6 and 7. The same parts as in the previous embodiment are designated by the same reference numerals, and the description thereof will be omitted. Connection port 5
A valve body 17 integrally provided with a protruding piece 21 is provided so as to be biased in the opening direction. A slide rod 27 serving as an interlocking rod is provided at one end of the protruding piece 21 so as to be rotatably connected thereto. The slide rod 27 is slidably held at the bottom of the storage portion 3 by a bearing 28 having a spherical outer shape, and is rotatably held in all directions. ing.

Therefore, in order to take out the suction hose 6, the lid 2 is closed.
3, the valve body 17 rotates in the opening direction while pushing the slide rod 27 by the force of the torsion spring. Conversely, when the lid 23 is closed after use, the slide rod 27 is pushed by the lid 23 and slides to the left.
Close the valve body 17.

As described above, this invention includes an interlocking rod that detects the closed state of the storage section that houses the suction hose and maintains the valve body of the suction air path in the closed state.
The suction air path can be closed when not in use, which prevents the wind from decreasing when cleaning using other connection ports, and eliminates the hassle of attaching and detaching the suction hose to the connection port. However, the suction hose can be stored in the storage section and covered with a lid for better appearance.Also, since the lid only needs to have the function of closing the storage section and pressing the interlocking rod, the installation state does not change the appearance. The main consideration is the appearance, and since the suction air passage can be closed by a valve body that can be accurately manufactured, it has the effect of ensuring a reliable closing operation.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing a first embodiment of the present invention, Fig. 2 is a perspective view of the storage section thereof, Fig. 3 is an enlarged vertical sectional side view of the storage section, and Fig. 4 is an open view of the storage section. FIG. 5 is a longitudinal side view of the lid state, FIG. 5 is an electric circuit diagram thereof, FIG. 6 is an enlarged longitudinal side view of the storage section showing a second embodiment of the present invention, and FIG. 7 is a support structure of the slide rod. FIG. 1...Dust case (dust collection section), 3...Storage section,
4... Pipeline, 5... Connection port body, 6... Suction hose, 12... Electric blower, 17... Valve body, 24...
...Sliding rod (interlocking rod), 27...Sliding rod (interlocking rod).

Claims (1)

[Claims] 1. Install multiple connection ports connected by pipes to a dust collection section that is maintained in a negative pressure state by an electric blower in storage areas formed on the floor or wall of the room, and close the openings of these storage areas. a valve body that opens and closes a suction air flow in a suction air passage of the connection port body, and connects a suction hose stored in the storage portion through a connection pipe connected to the connection port body; an interlocking rod which is biased in the opening direction and moves in response to opening and closing of the lid, and which contacts the lid and closes the valve body when the lid is closed. .