JPH0239585Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a cleaning nozzle, particularly a cleaning nozzle suitable for cleaning large urinals and automobiles, and more specifically, a cleaning nozzle with a rod-shaped water discharge part at the tip and its surroundings. The present invention relates to an improvement in a cleaning nozzle which is provided with a foam water discharge part and in which an internal flow channel and both of these discharge parts are selectively communicated with each other by rotating a switching member.

<Prior Art> Conventionally, in order to clean a toilet bowl, a nozzle with a mesh surface formed thereon was attached to the end of a hose, and a soft stream of foamy water emitted from the nozzle was used. However, although the foamy water is convenient for gently rinsing a large area, it is difficult to wash away, for example, deposits stuck to the toilet bowl. This involves removing the nozzle and attaching another nozzle that can output stick-shaped water, or squeezing the end of the hose by hand, and the realization of a system that can selectively output foamy water and stick-shaped water with one nozzle is awaited. Ta.

<Problems to be solved by the invention> Therefore, as a means to improve the above-mentioned drawbacks, a central member having a nozzle at the tip and a shielding wall in the middle, and a The rotating member is fitted to be rotatable around an axis and has a perforated plate at its tip, and openings are provided on both front and rear sides of the shielding wall of the central member, and the rotating member is rotated. proposed that the front opening of the shielding wall be opened and closed by the inner circumferential wall of a rotating member to selectively switch between the water passage at the rear of the shielding wall and the water supply route to the nozzle or perforated plate at the tip. (For example, see Japanese Utility Model Publication No. 45-1473).

In the above-mentioned conventional technology, the inner circumferential wall of the rotary member makes surface contact with the circumferential wall of the pipe serving as the central member, allowing relative rotation between the two, and communicates with the water passage behind the shielding wall via an opening. Since the structure is such that the perforated plates or the respective water supply channels (specifically, the spaces) to the nozzles are switched, if emphasis is placed on preventing water leakage at this surface contact area, the contact pressure between the surfaces will be increased. This has the disadvantage that the rotating operation of the rotating member to switch the flow path becomes heavy and cannot be operated easily.On the other hand, if the rotating operation of the rotating member is made lighter, water leakage can be prevented. In any case, it was difficult and impractical to satisfy the mutually contradictory conditions.

In view of this prior art, the present invention provides a high water leakage prevention effect by locating the flow path switching action part and the rotation surface of the member for flow path switching at separate positions, while also providing rotational movement. It is an object of the present invention to provide a cleaning nozzle whose members can be easily rotated.

<Means for solving the problem> In order to achieve the above-mentioned object, the cleaning nozzle of the present invention includes a rod-shaped water discharge part and a water discharge part of this discharge part on the downstream side of the hollow grip part having a water passage inside. a water spout consisting of a frothy water discharge portion formed around the water spout, and a switching case that rotates around an axis extending from the axis of the water spout between the water spout and the grip portion; A switching member is provided in the switching case so as to be rotatable integrally with the switching case, and a water stop member is provided in the grip portion and is always elastically pressed against the switching member. , the switching member has two flow passages which are in constant communication with the rod-shaped water discharge portion and the foam water discharge portion, respectively, and which are parallel to the extended axis; According to the present invention, communication between the grip portion and the water passage is selectively cut off by the water cutoff member as the switching case is rotated.

<Operation> Therefore, by rotating the switching case forward and backward, that is, in the UV direction in FIG. 2, one of the two flow passages of the switching member is closed by the water stop member, and the other is closed. By communicating with the water flow path of the grip portion, the nozzle is switched to either a foamy water discharging state or a bar-shaped water discharging state.

<Example> Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3. In Figures 1 and 2, 1
0 is a hollow grip part made of synthetic resin that has a water passage 11 inside, a male threaded part 12 is formed on the outside of one end (upstream side), and near the other end (downstream side) it can be hung on a hook etc. A locking portion 13 is formed for this purpose. Reference numeral 14 denotes a connecting portion that is externally fitted by a switching case 20, which will be described later, and an O-ring groove 14a for fitting an O-ring 15 and an engaging groove 14b are formed on the outer periphery of this connecting portion 14. . Reference numeral 16 denotes a substantially cylindrical spring receiver protruding forward (downstream) from the connecting portion 14, and reference numeral 17 denotes a spring that holds and biases the ball 18.

Reference numeral 20 denotes a substantially cylindrical switching case that is connected to the connecting portion 14 of the grip portion 10 so as to fit onto the outside;
Made of synthetic resin. 21 is a switching member provided inside one end (downstream side) of this switching case 20;
This is for switching the water passage route from the water passageway 11 in the grip portion 10. This switching member 2
1 is provided with two flow passages 21a and 21b, which are formed independently from each other and are parallel to an extension axis of a water dispensing device, which will be described later, extended toward the grip side. It leads to road 21b'. 22 is a gasket, and the switching member 21 and the gasket 22 are held in place by the switching case 2 by a pressing member 23.
It is fixed at a predetermined position of 0.

The packing 22 has the respective flow passages 21a, 2.
Two openings 2 matching the upstream opening position of 1b
2a and 22b are formed. Further, the holding member 23 has a substantially cylindrical shape, has a male threaded portion 23a formed on its outer periphery, and is screwed into a female threaded portion 20a formed on the inner surface of the switching case 20. The ball 18 is pressed against the gasket 22 side while receiving the biasing force of the spring 17, and the switching case 20 is rotated around an extended axis extending from the axis of the water spout 34 to the grip portion 10 side, which will be described later. By rotating in the UV direction in FIG. 2 (the switching member 21 and the gasket 22 also rotate integrally in the same direction), either one of the openings 22a, 22b of the gasket 22 is closed. Therefore, one of the two flow paths 21a, 21b of the switching member 21 is closed, and the other is opened.

24 is a stopper for preventing the switching case 20 from coming off from the connecting portion 14, and has a plurality of claws 24a formed on the inner periphery. And switching case 2
0 is externally fitted onto the connecting part 14 and connected, the claw 24a is inserted through the engagement window 20b opened in the switching case 20, and the claw 24a is inserted into the connecting part 1.
It is attached by fitting into the engagement groove 14b on the fourth side. The switching case 20 has a handle 20c on its outside, and a male threaded portion 20 on its downstream outer periphery.
d are formed respectively.

Reference numeral 30 denotes a water spouting portion screwed onto the downstream side of the switching case 20, which includes a rod-shaped water spouting portion 32 consisting of a pipe 32a that discharges rod-shaped water into the outer cylinder 31;
A water spout 34 is provided, which includes a foam water discharge part 33 formed around the water discharge part 2. Foamy water discharge part 3
3 is provided with a perforated plate 33a on its upstream side, and a pipe 32a forming the rod-shaped water discharge portion 32 is inserted through approximately the center of this perforated plate 33a. and,
On the downstream side of the foam water discharge section 33, a mesh 33b having pores is stretched around the pipe 32a. 35 is an O-ring that fits around the pipe 32a, and 36 is an O-ring that is interposed between the switching case 20 and the water spouting part 30.

In addition, 41 is a hose, and joint nut 42
It is externally fitted onto a joint bushing 43 which is fixed by. Reference numerals 19H and 19B are mark protrusions provided on the outer periphery of the vertical wall 19 of the grip portion 10 at an angle of 90°, and the handle 20c of the switching case 20 is located at the protrusion 1.
When in position 9H, as shown in FIG. 1 or FIG. 3A, the entrance of the flow passage 22b on the rod-shaped water flow side is closed by the ball 18, and the entrance of the flow passage 22a on the foam water flow side is opened. be done. Further, when the handle 20c is in the position of the protrusion 19B, as shown in FIG.
2b is opened.

In the cleaning nozzle configured as described above, by rotating the switching case 20 in the UV direction in FIG. 2, the nozzle enters either the foam water jetting state or the rod-shaped water jetting state. From this, foamy water or stick water can be easily obtained depending on the object to be cleaned.

<Effects of the invention> Since the present invention is constructed as explained above, it is possible to selectively use either foamy water or stick-shaped water by simply rotating the switching case in the forward and reverse directions as appropriate. However, in particular, the present invention employs a configuration in which the flow path switching portion and the rotating surface of the member for switching the flow path are located at separate positions. , compared to conventional ones, it is possible to sacrifice the light rotation of the rotating member in order to increase the water leakage prevention effect, or conversely, to increase the water leakage prevention effect in order to obtain the light rotation of the rotation member. There is no need to make any sacrifices, and the water leakage prevention structure can be obtained as a completely separate structure from the flow path switching structure, and while a high leakage prevention effect can be achieved, the turning operation force of the switching case is much lighter. Become,
It allows switching of flow paths easily with very light force, and has great value in industrial applications.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view of a cleaning nozzle, FIG. 2 is an exploded perspective view, and FIGS. 3A and 3B are explanatory views of the operation. 10... Grip portion, 11... Water passage, 20...
...Switching case, 30...Water discharge part, 32...Bar-shaped water discharge part, 33...Foamy water discharge part, 34...Water discharge part.

Claims (1)

[Scope of utility model registration request] A water spout consisting of a rod-shaped water spouting part and a foamy water spouting part formed around this spouting part is provided on the downstream side of the hollow grip part having a water passage inside, and this water spout and the grip A switching case that rotates around an axis that is an extension of the axis of the water dispensing device is provided between the grip section and the switching case, and a switching member that is rotatable integrally with the switching case is provided within the switching case. A water stop member is provided which is held in the grip portion and is always elastically pressed against the switching member, and the switching member is always independently communicated with the rod-shaped water discharge portion and the foamy water discharge portion. With,
Two flow passages parallel to the extended axis are formed, and communication between these two flow passages and the water passage of the grip portion is selectively cut off by the water cutoff member by rotation of the switching case. A cleaning nozzle characterized by: