JPH0346695Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Purpose of the Invention) The present invention relates to an installation device for a check valve that is attached to the air suction port of a small rechargeable vacuum cleaner that uses a storage battery as a power source. A vacuum cleaner of this type will be explained with reference to Fig. 1. 1 is the rear body of this vacuum cleaner, which houses an electric blower 3 having a fan 2 and a storage battery 4. 5 is a terminal for charging the storage battery, and 6 is a pilot terminal. 7 is a terminal board for connection, 8 is a power switch, and 9 is a handle.
A front body 10 is detachably attached to the rear body 1 via a buckle 11, and a dust collection chamber 12 is formed inside thereof. The front main body 10 has a suction port 15 having a brush 13 and a check valve 14 at its tip, and a filter 16 is provided in the dust collection chamber 12 . Reference numeral 17 denotes a frame for giving expansion to the filter 16. Several stages (5 stages) of elongated slits indicated by dotted lines are exhaust ports 18 provided on both sides of the rear body 1.
The dust-laden air sucked in from the suction port 15 is captured by the filter 16 and becomes clean air, which enters the rear body 1 and is discharged from the exhaust port 18.

The present invention relates to an improvement of the mounting device for the check valve 14 among the above structures. Hereinafter, a conventional check valve mounting device to which the present invention is improved will be explained with reference to FIGS. 6 to 10. The air suction port 15 is made of a cylinder with an elongated oval cross section, and a check valve 14 is attached to the air discharge side thereof. Check valve 1
4 is formed by a thin plate made of a flexible elastic material, and its lower half 14a sends air containing dust sucked into the suction port 15 from the direction of the arrow into the dust collection chamber 12, and from the dust collection chamber 12. It acts as a check valve to block backflow to the suction port 15 and prevent dirt from leaking. The upper half 14b of the check valve 14 is connected to the front body 10.
A hole 22 having a plurality of radial claws 21 as shown in FIG.
The ring 23 is fitted by fitting the ring 23 provided with the
and the support body 19.

However, in the above structure, the middle part of the fixed part 14b rises as shown in FIG. 10 due to the air sucked in from the direction of the arrow, creating a gap 24 and reducing the function of the check valve 14 as a check valve. let Preventing this check valve 14 from floating is the ninth
This problem has been solved by interposing a band-shaped washer 25 as shown in the figure between the ring 23 and the check valve 14 as shown in FIG. 23 requires a large number of parts, the work is complicated, and it is difficult to automate the assembly. The present invention is intended to solve this problem, and aims to provide a check valve mounting device that can be assembled simply and easily from one component, and that can automate the assembly. This is the purpose of the invention.

[Structure of the idea]

The check valve installation device for a rechargeable vacuum cleaner of the present invention has a dust collection chamber that has an air suction port at the tip and houses a filter device in the front of the rear body that contains a storage battery and an electric blower. A check valve made of a thin plate of a flexible elastic material whose upper portion is fixed by a pair of supports is provided on the air discharge side of the air suction port in a structure in which the front main body is detachably connected; The upper part of the check valve is fixed to the fixed shaft provided on the pair of supports by a holding plate made of a rectangular metal plate having a pair of holes each having a plurality of radial claws. Features. An embodiment of the present invention will be described with reference to FIGS. 2 to 5. In the present invention, the component for fixing the check valve 14 to the support 19 is a rectangular strip-shaped metal plate as shown in FIG. A presser plate 26 is used. The check valve 14 is fixed between the press plate 26 and the support body 19 by inserting the pair of holes 22 in the press plate 26 into the pair of fixed shafts 20 of the support body 19.

[Effect of idea]

As described above, in the present invention, a back check can be achieved by simply pushing the holding plate 26, which is integrated with the conventionally used ring 23 shown in FIG. 8 and the washer 25 shown in FIG. 9, onto the fixed shaft 20. Since the valve 14 can be fixed to the support body 19, assembly can be completed with one touch using one component, making it possible to automate the assembly and improve productivity. Since lifting of the check valve 14 can be prevented by the holding plate 26, the purpose of the invention can be achieved.

[Brief explanation of the drawing]

Figure 1: A sectional view of a rechargeable vacuum cleaner to which the present invention is applied, Figure 2: A diagram showing an embodiment of the check valve mounting device of the present invention, where A is a side view, B is a front view, and 3
Figure: 4th exploded side view of the check valve mounting device of the present invention.
Figure: Front view of the check valve, Figure 5: Front view and side view of the holding plate, Figure 6: Diagram showing a conventional check valve mounting device, where A is a side view, B is a front view, and Figure 7 is a diagram showing a conventional check valve mounting device. Figure: Side view of another conventional check valve mounting device, Figure 8: Front view and side view of the ring, Figure 9: Front view and side view of the washer, Figure 10: Explanation of the uplift of the check valve. Figure to do. 14...Check valve, 15...Air suction port, 19...
...Support, 20...Fixed shaft, 21...Claw, 22...
...hole, 26...presser plate.

Claims (1)

[Scope of utility model registration request] A structure in which a front body, which has an air suction port at the tip and forms a dust collection chamber in which a filter device is housed, is removably connected to the front of a rear body that incorporates a storage battery and an electric blower. A check valve made of a thin plate of flexible elastic material whose upper portion is fixed by a pair of supports is provided on the air discharge side of the suction port, and the upper portion of the check valve is provided on the pair of supports. A check valve mounting device for a rechargeable vacuum cleaner, characterized in that the check valve mounting device for a rechargeable vacuum cleaner is fixed to a fixed shaft by a holding plate made of a rectangular metal plate provided with a pair of holes having a plurality of radial claws.