JPH0248067Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a sprayer that is capable of naturally flowing down and removing soil and sand that has fallen onto the receiving part of a soft tube of the opening/closing control part of a water supply channel consisting of a pinch valve. This is what I did.

(Background of the invention) As a sprayer used for gardening, etc., a main body equipped with a chemical tank and a spraying section consisting of a nozzle, etc. are connected with a soft tube, and a pincher is installed at or near the spraying section. A device is known in which the ejection of a chemical solution can be easily controlled by operating an opening/closing control section of a water supply channel consisting of a valve. However, this type of soft tube inevitably gets wet due to chemical liquid or dew adhering to its surface, and therefore soil and sand are likely to adhere to the surface of the tube. If soil or sand adhering to the soft tube falls onto the receiving part of the soft tube that constitutes the pinch valve, it will interfere with the crimping operation of the tube by the pressing part, and it will also prevent the pressing part from strongly crimping the tube. However, there were problems such as the surface of the tube being damaged by the soil and sand.

(Purpose and Overview) The present invention was developed in view of the above circumstances, and the present invention is designed to prevent soil or sand attached to the soft tube of this type of sprayer from falling onto the receiving part that constitutes the pinch valve. , it is an object of the present invention to provide a sprayer equipped with a water supply channel opening/closing control section that can naturally remove this. For this purpose, the present invention allows a soft tube to slide freely through the inside of the opening/closing control section, and connects its tip to the extensible pipe section of the spray section, and presses the soft tube provided in the opening/closing control section. In addition to opening and closing the water supply channel by pressing the soft tube on the receiving part, the upper surface of the receiving part is formed into a downward slope. With this configuration, even if soil or sand adhering to the surface of the soft tube falls onto the upper surface of the receiver when the soft tube slides inside the opening/closing control section, the soil or sand can be removed from the above. It is designed to quickly flow down and remove along the slope.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a sprayer according to the present invention, which comprises a main body part 1 and a spray part 2 connected to the main body part 1 through a flexible tube 3. As shown in FIG. The main body 1 is constructed by detachably attaching a cover case 5 to the upper part of a chemical liquid tank 4.
Reference numeral 6 denotes a locking claw for the chemical solution tank 4 provided on the cover case 5. A grip part 7 is formed in the upper part of the cover case 5, and a pump 8, a pump drive motor 9, and a transformer cover 10 are installed inside the grip part 7.
A transformer 11, a wiring board 12, etc. housed in the tank are arranged, and when the operation button 13 provided on the grip part 7 is operated, the pump 8 is driven and the chemical liquid in the chemical liquid tank 4 is sucked up into the hose 14. , is sent to the tube 3 through the flexible pipe 15. 16 is a bypass section consisting of a relief valve provided in the middle of the flexible pipe 15, and
When the water pressure on the side increases, the chemical liquid is returned to the chemical liquid tank 4 through the reflux hose 17. 18 is a power cord.

Next, while referring to FIGS. 2 to 6, the spray section 2
Explain the details.

The spraying section 2 has three pipes 1 with different diameters.
A nozzle 20 is attached to the most advanced pipe 19c of the telescopic pipe section 19, which is formed by telescopically connecting 9a, 19b, and 19c, and a water supply channel opening/closing control part that also serves as a holding part is attached to the rear of the rearmost pipe 19a. 21 are removably connected via the threaded portion 10. The control section 21 is composed of a long frame 22 having a substantially U-shaped cross section, and a pressing operation section 24 of the soft tube 3, which is a rotary lever rotatably attached to the upper rear end of the frame 22 via a hinge section 23. It's on. The tube 3 passes through the control section 21 in a slidable manner in the longitudinal direction A, and its tip is connected to the rear end of the most advanced pipe 19c, and connects each of the pipes 19a to 19c. When expanded and contracted, the tube 3 slides inside the control section 21.
By passing the tube 3 through the inside of the control section 21 and connecting it to the pipe 19c in this way, the number of connection points for the water supply channel in the spray section 2 can be reduced to one, which reduces the risk of water leakage. be able to. A sand removal armor 33 is provided at the rear of the control unit 21 and is made of a soft material such as rubber.

Reference numeral 25 denotes a locking button that is slidably mounted on the upper surface of the tip of the operating section 24 along its length, and a guide recess formed in the front wall of the frame 22 in the vertical direction is provided at the tip. A guide piece 26 that fits into the guide piece 27 is projected and guides the pressing operation of the operating part 24. 31 is a lock portion formed at the bottom of the recess 27, and when the button 25 is slid forward while being pressed, the button 25 is locked.
The tip shoulder portion of the handle engages with this locking portion 31, and locks the operating portion 24 with the soft tube 3 crimped (see especially FIG. 4).

28 is an operation section 24 located behind the button 25.
The spring 28 is a spring installed vertically on the lower surface, and the lower end of the spring 28 is mounted on a support frame 32 installed on the tube 3, so as to be pressed against the spring force of the spring 28 of the operating section 24. It's getting old. Reference numeral 29 denotes a pressing portion attached to the lower surface of the operating portion 24 behind the spring 28, and 30 represents a receiving portion protruding from the bottom surface of the frame 22 facing the pressing portion 29. The receiving portion 30 constitutes a pinch valve. The cross-sectional shape of this receiving part 30 is triangular, and its upper surface 30a is a slope with a downward slope toward the front, that is, toward the distal end of the spraying part 2, and the circumferential body surface of the soft tube 3 is arranged as well as possible over a wide range. It is formed in a circularly curved shape so as to come into contact with the.
Correspondingly, the lower surface 29a of the pressing portion 29 is also formed into a circularly curved shape so that the tube 3 can be reliably crimped (see especially FIG. 6b).

This sprayer has the above-mentioned configuration, and when spraying the chemical solution, each pipe 19a to 19c
Stretch out and hold the grip part 7 with one hand,
When the control unit 21 is held with the other hand and the operation button 13 of the grip unit 7 is operated, the chemical liquid in the chemical liquid tank 4 is sucked up by the pump 8, passes through the tube 3, and is ejected from the nozzle 20. When stretching each of the pipes 19a to 19c as described above, the soft tube 3 slides inside the control section 21 toward the tip side of the spraying section 2, but at this time, dirt adheres to the surface of the soft tube 3. The sand a is first removed by the armor 33 and then scraped off by the edge e of the receiving part 30, but some of it falls onto the receiving part 30.
However, the soil and sand a that fell onto the receiving part 30,
Since it quickly flows down on the inclined upper surface 30a and is removed from the upper surface 30a, it is not buried in the upper surface 30a.

When you want to stop ejecting the chemical solution, the control unit 21
Press the button 25 downward with the fingertip of the hand holding the button. Then, the tube 3 is pressed by the pressing part 29, and the ejection of the chemical liquid is stopped (see the chain lines a and b in Fig. 6).If the button 25 is then slid forward and locked, the ejection stopped state is continued, and during that time, the ejection is stopped. The chemical liquid sucked up by the pump 8 is returned to the chemical liquid tank 4 through the bypass section 16. Since the pressing part 29 rotates around the hinge part 23 and presses the soft tube 3, by tilting the upper surface 30a of the receiving part 30, the pressing part 29 can be pressed more perpendicularly to the upper surface 30a. Yes (see especially the dashed line in Figure 6a). When you want to resume spouting the chemical solution, slide the button 25 backward to release its shoulder from the locking part 31 and release the pressure from your fingertip, and the operating part 24 will rotate upward by the spring force of the spring 28. However, the pressing part 29 is separated from the tube 3 and the chemical liquid is ejected from the nozzle 20 again.

When storing the spray unit 2, use the pipes 19a to 1
9c, but if you forget to release the locked state at that time, the soft tube 3 will not be able to slide inside the control part 21 because it is crimped by the pressing part 29, and therefore the pipes 19a to 19c will not be able to slide inside the control part 21. It cannot be retracted and stored. In other words, the main spraying section 2 has a structure in which the pipes 19a to 19c cannot be contracted unless the soft tube 3 is released from the crimped state. Therefore, if the soft tube 3 is forgotten to be released from the crimped state, the soft tube 3 is permanently deformed into a flat shape. This can prevent water permeability from deteriorating.

(Other Embodiments) The present invention is not limited to the above embodiments, and various design changes are possible. For example, the upper surface 30a of the receiving portion 30 may be flat as shown in FIG. In this case, the lower surface 29a of the pressing portion 29 is also formed flat.

(Effect of the invention) As explained above, the present invention allows the soft tube 3 that connects the main body part 1 and the spray part 2 to slide freely inside the opening/closing control part 21 having the pressing part 29 of the tube 3. This is a sprayer formed by penetrating the tube and connecting its tip to an extensible pipe part 19, in which the upper surface 30a of the receiving part 30 of the soft tube 3 provided below the pressing part 29 is formed into a downward slope. Therefore, even if soil or sand a attached to the surface of the soft tube 3 falls onto the receiving part 30, the upper surface 3
Since the soft tube 3 is naturally flowed down and removed without being buried on 0a, even if the soft tube 3 is pressed by the pressing part 29, the soft tube 3 is removed by the soil or sand a.
It won't hurt.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the sprayer, Figure 2 is a perspective view of the opening/closing control section, Figure 3 is a sectional view, Figures 4 and 5 are partial perspective views, Figures 6a and b are partial sectional views, and Figure 7 is a perspective view of the sprayer. The figure is a perspective view of another embodiment. DESCRIPTION OF SYMBOLS 1... Body part, 2... Spray part, 3... Soft tube, 4... Chemical tank, 19... Telescopic pipe part, 20... Nozzle, 21... Opening/closing control part, 29
...pressing part, 30...receiving part, 30a...upper surface.

Claims (1)

[Scope of utility model registration request] A sprayer comprising a main body part 1 that generates a high-pressure water stream and a spray part 2 equipped with a nozzle 20, the spray part 2 and the main body part 1 being connected via a soft tube 3. The tube 3 is slidably passed through the opening/closing control section 21 of the water supply channel having the pressing section 29 of the soft tube 3 provided at the rear of the spray section 2, and the tip thereof is inserted into the spray section 2. At the same time as connecting, the receiving part 30 of the soft tube 3 is arranged below the pressing part 29,
A sprayer characterized in that the upper surface 30a of the receiving portion 30 is formed into a downward slope.