JPS639853B2 - - 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.

With this type of device, it is impossible to connect suction hoses to multiple connection ports and clean each one at the same time due to lack of power. In reality, connection ports other than those used are closed with lids in preparation for a drop in wind power, but people clean using other connection ports without realizing that the suction hose is inserted into the connection port. In this case, there is a drawback that a decrease in wind power cannot be prevented.

This invention was made in view of the above-mentioned points, and an object of the present invention is to provide a vacuum cleaner that closes the air passage when not in use and prevents a lack of power when cleaning by using another connection port. That is.

In this invention, when in use, the suction hose is taken out from the storage part to open the suction air passage for cleaning, but when the suction hose is stored in the storage part, the operating mechanism detects this state and closes the valve body. maintain the condition,
This eliminates the lack of power when cleaning using other connection ports, and since the suction hose is stored in the storage section when not in use, it looks good and is easy to attach and detach from the connection port. It is structured so that it can be made unnecessary.

An embodiment of the present invention will be described based on the drawings.
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, storage sections 3 in the form of groove-like recesses are formed in the floor or wall of each room, and connection ports 5 connected to the dust case 1 through conduits 4 are installed in these storage sections 3. There is.

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. The remote control switch 9 connects the remote line 15 by a conductor buried in the suction hose 6 and a conductor connected to the conductor within the connection port body 5 while running along the conduit 4 (not shown). It is connected to the secondary side of the transformer 13 while forming the transformer 13 . A relay switch 16 that is turned on by the secondary voltage of the transformer 13 is connected between the electric blower 12 and the power source 13.

The connecting tube 11 of the suction hose 6 is bent into an L-shape, and an inner tube 17 rotatably fitted to the connecting port body 5 is held at its tip so as to be expandable and retractable while being prevented from coming off. That is, the connecting pipe 1
1 is attached to the connection port body 5 so as to be slidable in the axial direction. A valve body 18 is rotatably attached to the connection port body 5. The valve body 18 is integrally provided with a thin and strong lever 20 that projects outward from a slit hole 19 formed in the connection port body 5. Although the slit hole 19 is not shown, it is closed by a rubber plate having a cut on the joining edge that coincides with the slit hole 19, and minimizes air leakage without interfering with the movement of the lever 20. And storage section 3
An actuation mechanism 21 is provided in the . That is, the actuating mechanism 21 includes a receiving plate 22 located at the bottom of the storage section 3 and supporting the suction hose 6, and a receiving plate 22 serving as a protruding portion held at one end and biased in one direction by a spring 23. It consists of a slide rod 24 that is slidably provided, and a link 25 that connects the other end of the slide rod 24 and the lever 20.
The receiving plate 22 protrudes from the bottom surface of the storage section 3, and is biased by the spring 23 in a direction protruding from the bottom surface.

In such a configuration, in order to perform cleaning, the lid 26 is opened from the storage section 5, the suction hose 6 is lifted up, and the extension tube 7 and the floor brush 8 are connected to the grip tube 10. At this time, the receiving plate 22 supporting the suction hose 6 slides together with the slide rod 24 while pulling the lever 20 due to the force of the spring 23, so that the valve body 18 rotates in the opening direction (see FIG. 4). Then, by turning on the remote control switch 9, the relay switch 16 is activated to drive the electric blower 12, but since the valve element 18 always opens the air passage, the air passage becomes a vacuum and the electric blower is driven. The blower 12 will not be overheated and burnt out. Note that when rotating the connecting tube 11, the inner tube 17 is stretched. Thereby, the width of the storage section 3 can be made narrower.

After use, turn on remote control switch 9.
Turn it off and store the suction hose 6 with the extension tube 7 removed in the storage section 3. As a result, the slide rod 24
is lowered to maintain the valve body 18 in a closed state. This prevents the wind power from decreasing when cleaning using the suction hose 6 connected to the connection port 5 in another room. Moreover, the operation of attaching and detaching the suction hose 6 to the connection port body 5 can be made unnecessary, and the appearance of the stored state is good.

As described above, this invention provides a protrusion that is pressed by the storage hose or connecting pipe when the suction hose is stored in the storage section, and a valve body that is maintained in a closed state by the protrusion is provided in the suction air path. As a result, the air passage can be closed after use, and since the protrusion is located near the connecting pipe, the suction hose can be reliably pressed when stored, and the air passage can be reliably closed. Therefore, it is possible to prevent a decrease in the suction force when cleaning using a suction hose connected to another connection port, and also to avoid the trouble of connecting the suction hose to the connection port each time. In addition, since the suction hose is stored in the storage part, the storage part does not get in the way, and it also has the effect of improving the appearance.

[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 its storage section, Fig. 3 is a vertical side view thereof, and Fig. 4 shows its state in use. A partial vertical side view and FIG. 5 is an electrical circuit diagram thereof. 1...Dust case (dust collection section), 3...Storage section,
4...Pipe line, 5...Connection port body, 6...Suction hose, 11...Connection pipe, 12...Electric blower, 18
... Valve body, 21 ... Actuation mechanism, 22 ... Receiving plate (protrusion).

Claims (1)

[Claims] 1. A plurality of connection ports connected by pipes to a dust collection section maintained in a negative pressure state by an electric blower are installed in a storage section that is formed in the shape of a groove-like recess on the floor or wall of the room and is provided with a lid. A suction hose stored in the storage section is connected to the connection port body through a connection pipe that is slidably attached in the axial direction of the connection port body, and the suction hose is connected to the suction air path of the connection port body. A valve body for opening and closing the air passage is provided, and has a protruding portion protruding from the bottom surface of the storage portion near the connecting pipe, and biases the protrusion portion in a direction to protrude from the bottom surface of the storage portion, and the protruding portion The valve body is characterized in that an operating mechanism is provided in connection with the valve body, in which the valve body opens the suction air passage when the valve body is in a protruding state into the storage portion, and which closes the suction air passage when the valve body is not protruding. Vacuum cleaner.