JPH023816Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a sprayer, and particularly to a structure for connecting a water supply hose to a discharge portion of a pump.

(Background of the invention) Sprayers used for gardening etc. are designed to use a pump to suck up water or chemical solutions from a tank, send them to a spraying unit, and spray them on trees, flowers, etc.
Generally, the pump is housed inside the main case.
The pump and the spraying section are connected by a water supply hose. Conventionally, as shown in FIG. 9, this type of water supply hose 81 is forcibly inserted into the discharge pipe 83 of the pump 82 due to its elastic force. 82, so if the hose 81 is pulled outward unnecessarily or the internal fluid pressure becomes high, the hose 81
1 has the disadvantage that it easily falls off from the discharge pipe 83, and for this reason, measures have been taken to prevent the hose 81 from falling off from the discharge pipe 83, such as by winding and attaching a stopper 84 such as a wire. . However, even with such measures, the hose 81 is likely to fall off from the discharge pipe 83, and the process of winding and attaching the stopper 84 around the hose 81 is required, which increases the number of man-hours and makes manufacturing and assembly troublesome. There were other problems.

(Summary of the invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sprayer in which a water supply hose can be securely and easily connected to the discharge part of a pump. For this purpose, the present invention is designed to fit the tip of a water supply hose 8 made of a soft material holding a tubular body 21 into the discharge part 3a of the pump 3 housed in the main body case 1, and to integrate it with the tubular body. The formed attachment means 28 is adapted to be attached to the main body case 1, and by configuring it in this way, the water supply hose can be securely and easily connected to the discharge part of the pump. It is something.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 and 2 show a sprayer according to the present invention, in which 1 is a main body case having an oval cross section, and 2 is a tank detachably attached to the lower part of the main body case 1. A pump 3, a pump drive motor 4, a power supply unit 5, etc. are housed inside the main body case 1, and when the switch operation body 6 is operated, the pump 3 is driven and a hose for sucking up water and chemical liquid from the tank 2 is activated. 7, and then the pump 3
The water is supplied to the spray section 9 through a water supply hose 8 made of a soft material connected to the tubular discharge section 3a. The spraying section 9 consists of a long tubular grip section 9a and a nozzle section 9b rotatably connected to the tip thereof. Reference numeral 10 denotes a partition plate disposed above the pump 3 and motor 4, and a noise prevention space 11 is secured above the partition plate. Reference numeral 14 denotes a locking body for a hose 8 which is protruded from the wall surface of the main body case 1, and the hose 8 is appropriately connected to a small diameter portion 2 recessed in the upper part of the tank 2.
a, and is locked to the locking body 14 (the first
(See figure and dashed line in Figure 2). 13a and 13b are coupling bosses of the main body case 1 formed by coupling the pair of half parts 1a and 1b. In particular, the boss 13b is provided on the locking body 14, and the boss 13b is provided on the locking body 14, and the boss 13b is provided on the locking body 14 and The connection in case 1 is more reliable.

Reference numeral 12 denotes a grip section provided in a bridging manner on the upper part of the main body case 1, and its cross-sectional shape is approximately U-shaped, and the side wall sections 121, 121 are provided with cutout grooves 15 for imparting some elasticity. The grip portion 9a of the spraying portion 9 is elastically attached to and detachable from the upper recess 14 between the side walls 121, 121. That is, the grip part 12 also serves as a mounting part for the spray part 9. Grip part 9
Concave and convex stripes 19 for preventing fingertips from slipping are formed along the length direction on the circumferential body surface of a. , 121, protrusions 121a, 121a protrude inwardly from the upper part of the
engage with. These uneven stripes 19 and protrusions 121
a and 121a serve as positioning parts when attaching the spray part 9 to the grip part 12.

The switch operating body 6 has a substantially U-shaped cross section and is attached to the grip portion 12 so as to be slidable along its length. 18, 18 are the side wall portions 121, 1
21, and the side wall surface of the switch operation body 6 attached to the grip part 12 is formed in the notch 1.
It has been exposed since 8.18.

Reference numerals 16 and 17 denote fingertip anti-slip parts made of unevenness formed on the side wall surface and the top surface of the switch operation body 6, and each anti-slip part 16 and 17 can be used when the spray part 9 is removed from the grip part 12 or when it is attached. In this state, it prevents the fingertips from slipping when sliding the switch operation body 6. Reference numeral 20 denotes a cylindrical body for guiding the hose 8 out of the main body case 1, and its details will be explained next with reference to FIGS. 3 to 6.

The cylindrical body 20 is formed by joining a pair of half bodies 20a, 20a. The half body 20a consists of a substantially semi-tubular body 21 and a semi-flap-shaped body 22 connected thereto. Ribs 24 and small holes 25 are formed in the wing portion 23 that protrudes along the side edge of the substantially semi-tubular body 21, and each rib 24 is inserted into each small hole 25 to form both halves 20a. , 20a are integrally coupled. The distal end of the hose 8, which is inserted into the discharge portion 3a, is held by the semi-tubular body 21. In order to prevent the hose 8 from slipping out of the tubular body 20, the semi-tubular body 21 is In the circumferential direction of the inner wall surface, there is an uneven part 26 for preventing slipping off.
Several lines are formed. 27, 27 is the semi-tubular body 2
It is a board that is vertically installed on the left and right walls of 1, and has some elasticity. On the outer wall surfaces of the plates 27, 27, ribs 28 having a sawtooth cross section are provided to prevent them from coming off.
28 is provided protrudingly. Reference numeral 29 denotes a positioning protrusion protruding from the wall surface of the semi-tubular body 21 along its length, and 30 denotes a fitting rib protruding from the inside of the flap-shaped body 22.

Reference numeral 31 denotes an opening formed at the joint between the left and right halves 1a and 1b, and fitting grooves 32, 32 for fitting the rib 30 are formed in both sides of the opening. Further, four triangular protrusions 33 for locking the ribs 28 are formed slightly inward of the opening 31.

When connecting the hose 8 to the discharge part 3a of the pump 3, as shown in FIG. It is held in the cylindrical body 20,
The cylindrical body 20 is held in the hand and inserted into the opening 31. In other words, the joining line Q of the main body case and the cylindrical body 20
By inserting the joining line P in the orthogonal direction,
The connection of the main body case 1 is performed using the connection bosses 13a, 1.
3b as well as the fitting rib 3 of this cylindrical body 20.
0 and the fitting force of the fitting groove 32 is also utilized. The discharge part 3a of the pump 3 is visible in the opening 31, and the hose 8 is forcibly inserted into the discharge part 3a until the rib 28 is locked with the protrusion 33 (see Fig. 5b). ). The wing portion 23 and the protruding piece 29 are
It serves as a guide when inserting the cylindrical body 20 into the opening 31, and also serves as a positioning part for fixing the cylindrical body 20 in the opening 31 without wobbling. When the hose 8 is inserted into the discharge part 3a in this way, the rib 28 is elastically engaged with the protrusion 33 due to the shrinkage of the wall thickness of the hose 8 made of a soft material and the elasticity of the plate 27. However, after being inserted, the elastic restoring force of the hose 8 acts on the cylindrical body 20 in the direction of expansion, so that the rib 28 is reliably engaged with the protrusion 33. Further, in this state, the uneven portion 26 on the inner wall surface of the semi-tubular body 21 bites into the outer surface of the hose 8 (see FIG. 6), and the hose 8 is connected to the discharge portion 3a and the cylindrical body 20.
It is held elastically and firmly. Therefore, the position of the hose 8 is restricted by the cylindrical body 20 with respect to the hose removal direction, and even if an outward force F is applied to the hose 8, the hose 8 and the discharge part 3
The above-mentioned position regulation together with the fitting force of a exerts the effect of preventing the hose 8 from falling off from the discharge part 3a, and the elasticity of the hose 8 is involved in the engagement between the cylindrical body 20 and the rib 30. Therefore, the cylindrical body 20 does not shake after engagement. Further, since the outer end of the cylindrical body 20 is a flange-like body 22, the hose 8 can be freely bent along the tapered surface 22a (see the chain line in FIG. 6). That is, the cylindrical body 20 also serves as a guide portion for guiding the hose 8 out of the main body case 1 while freely bending it.

FIG. 7 shows a state in which water or a chemical solution is being sprayed using this sprayer.
The spraying operation is carried out while the switch operation body 6 is slid with the fingertip of the holding hand, but of course the spraying part 9 is removed from the grip part 12, and the grip part 12 is held with one hand. Alternatively, the spraying operation may be performed while holding the grip portion 9a of the spraying portion 9 with the other hand and slidingly operating the switch operating body 6 with the fingertips of the hand holding the grip portion 12.

The present invention is not limited to the above-mentioned embodiments, and various design modifications are possible. In this case, as shown in FIG. 8, a split portion 41 is formed in the cylindrical body 40 to provide elasticity so that the force of expanding the hose 8 is not inhibited.

(Effect of the invention) As explained above, the present invention has a tubular body 21 in the discharge part 3a of the pump 3 housed in the main body case 1.
The distal end of the water supply hose 8 made of a soft material held by the tubular body 21 is fitted into the water supply hose 8, and the attachment means 28 integrally formed with the tubular body 21 is attached to the main body case 1. Even if a force is applied to cause the hose 8 to come off outward, this force is borne by the main body case 1 via the tubular body 21, so that the hose 8 can be reliably prevented from coming off from the discharge part 3a.
Furthermore, the water supply hose 8 can be easily connected to the discharge part 3a without requiring a connecting means such as a wire, which has the advantage of reducing the number of man-hours and reducing the cost.

[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 side view, Figure 3 is a partially exploded perspective view, Figure 4 is a partial front view, Figures 5a and b are a partial side view, Figure 6 is a partial sectional view, 7th
The figure is a side view of the device in use, FIG. 8 is a perspective view of another embodiment, and FIG. 9 is a side view of the conventional device. DESCRIPTION OF SYMBOLS 1... Main body case, 3... Pump, 3a... Discharge part, 8... Water supply hose, 21... Tubular body, 2
8... Attachment means.

Claims (1)

[Scope of utility model registration request] Discharge part 3 of pump 3 housed in main body case 1
The tip of a water supply hose 8 made of a soft material held by the tubular body 21 is inserted into the tube a, and the hooking means 28 formed integrally with the tubular body 21 is hooked to the main body case 1. A sprayer characterized by: