JPH0547337Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a hose holding device that is attached to a liquid tank during cleaning work, chemical spraying work, etc. This invention relates to a hose holding device that prevents such disadvantages.

[Conventional technology]

FIG. 10 is a diagram illustrating a conventional situation in a cleaning liquid spraying operation. The mobile portable washing machine 10 includes a frame 12, and the frame 12 is movable on wheels 14. The frame 12 includes a pump 16 such as a reciprocating pump, and the pump 16
The engine 18 and the like that drive the are mounted and fixed. The pump 16 includes an inlet 20 for inhaling a liquid such as a medicinal solution, and an outlet 22 for discharging the liquid.
It is provided with a leftover liquid port 24 for discharging the leftover liquid. The water supply tank 26 is, for example, a drum can, etc., and is open at the top, and a hose 30 is connected to the water supply tank 26 from the water faucet 28.
Water 32 is supplied via. Liquid suction hose 34
are the inlet ports 2 of the pump 16 at both ends, respectively.
0 and strainer 36, strainer 3
6 is submerged into the water 32 of the water tank 26.
The remaining liquid hose 38 is connected to the remaining liquid port 24 of the pressure regulator 39 of the pump 16 at one end, and is put into the water supply tank 26 at the other end, and the remaining liquid is supplied to the pump 1.
6 from the pressure regulator 39 to the water supply tank 26. The spray hose 40 is connected to a pump 16 at each end.
The operator 44 opens and closes the gun nozzle 42 by holding the gun nozzle 42 in his hand.

The pump 16 is driven by the engine 18 and sucks water 32 in the water supply tank 26 through a strainer 36 and a liquid suction hose 34, and pumps it through a spray hose 40 to a gun nozzle 42.
At this time, foreign matter such as dirt in the water 32 of the water supply tank 26 is removed by the strainer 36, and the water 32 from which the foreign matter has been removed is sent to the pump 16.

In this way, the liquid suction hose 34 and the residual liquid hose 3
8 is simply hung on the upper edge of the water tank 26, the following problems arise.

(a) The amount of remaining liquid returned from the pump 16 (its pressure regulator 39) to the water supply tank 26 via the remaining liquid hose 38 is the sum of the amount of liquid sucked into the pump 16 via the liquid suction hose 34 and the amount of liquid sprayed from the pump 16. The difference in the amount of liquid sent to the gun nozzle 42 via the hose 40 is that when the operator 44 switches the gun nozzle 42 from opening to closing, the amount of liquid returned to the water supply tank 26 via the surplus liquid hose 38 increases rapidly. As a result, the surplus liquid hose 38 becomes violent and the water supply tank 26
The work may be interrupted in order to return the surplus liquid hose 38 to its original position.

(b) The liquid suction hose 34 bends and collapses at the upper edge of the water supply tank 26, impeding the liquid suction performance of the pump 16, and as a result, abnormal vibration occurs in the pump 16, which may cause the pump 16 to malfunction. It may become.

(c) When hot water is used as the water 32 to improve the cleaning effect of the cleaning liquid, the liquid suction hose 34 becomes soft due to the hot water, and the liquid suction hose 34 bends and collapses further at the upper edge of the water supply tank 26. The above-mentioned problem (b) becomes more noticeable.

(d) If the upper edge of the water tank 26 is angular,
The liquid suction hose 34 and the residual liquid hose 38 may become frayed at the upper edge of the water tank 26, which may lead to an unexpected accident or interruption of work.

(e) Foreign matter such as dirt settles at the bottom of the water tank 26, but because the strainer 36 sinks deeply into the water 32 of the water tank 26 due to its weight and is placed at the bottom of the water tank 26, Easily clogged due to sediment. Therefore, in order to avoid clogging, it is necessary to frequently clean the strainer 36, and if cleaning is forgotten, the pump 16 may break down.

On the other hand, hose holding devices such as the micro film of Utility Model Application No. 47-98196 and the micro film of Utility Model Application No. 52-125776 have a screw that tightens the hose inside the hose from one end in the cross-sectional direction. It is designed to be attached to the opening edge of a liquid tank that stores liquid.

[The problem that the idea attempts to solve]

In conventional hose holding devices such as the microfilm of Utility Model Application No. 47-98196 and the microfilm of Utility Model Application No. 52-125776, screws are operated on the inner surface of the liquid tank in order to fix the hose to the hose holding device. In addition, in order to fix the hose holding device to the opening edge of the liquid tank, it is also necessary to operate a screw or a leaf spring on the outside of the liquid tank. The fact that the operating part is on the inside of the liquid tank means that when hazardous substances such as chemical solutions are stored in the tank, the hose can be replaced from the hose holding device while the hose holding device is fixed to the opening edge of the tank. When doing so, there is a risk that the worker's hands may come into contact with the chemical liquid in the tank or that the screw may fall into the liquid tank. Furthermore, the hose holding device requires parts to be attached to the opening edge of the liquid tank and parts to hold the hose with an appropriate holding force, thereby increasing the total number of parts.

The purpose of this invention is to omit operations on the inner surface of the liquid tank, even when replacing the hose after attaching the hose holding device to the opening edge of the liquid tank. As an operation,
It is an object of the present invention to provide a hose holding device that can reduce the number of parts and further appropriately hold hoses of various diameters.

[Means to solve the problem]

This invention will be explained with reference to drawings corresponding to embodiments.

The pump hose holding device of this invention is as follows (a)
It has the constituent elements of ~(c).

(a) A crotch portion 48 disposed so as to straddle the opening edge of the liquid tank 26 that stores the liquid 32 therein.

(b) It is connected to the crotch part 48 on the inner surface side of the liquid tank 26 and has a notch 73 in a part of the circumferential direction, and the hoses 34, 38 are inserted through the hoses 34, 38.
The hose insertion portion 54 is elastically compressible in the tightening direction.

(c) an operating portion 50 connected to the crotch portion 48 on the outer surface of the liquid tank 26 so as to be able to release the biasing force toward the outer surface of the liquid tank 26 due to contact with the outer surface of the liquid tank 26; 58, 62, 64.

[Effect]

With the hoses 34 and 38 inserted into the hose insertion portion 54, operate the operating portions 50, 58, 62, and 64 to bring the operating portions 50, 58, 62, and 64 into contact with the outer surface of the liquid tank 26. This causes the crotch portion 48 to be pulled toward the outer surface. As a result, the hose insertion portion 54 is pressed against the inner surface of the liquid tank 26 and elastically compressed in the tightening direction of the hoses 34, 38, and the hoses 34, 38 are inserted through the hose insertion portion 54 due to the narrow pressure in the hose insertion portion 54. 54. The thinner the hoses 34, 38 are, the narrower the opening width of the cutout 73 of the hose insertion portion 54 becomes, and the hoses 34, 38 are properly tightened.

〔Example〕

This invention will be described below with reference to embodiments shown in the drawings.

1 and 2, the hose holding device 46 of the liquid suction hose 34 and the residual liquid hose 38 is connected to the water supply tank 2
FIG. 3 is a perspective view of a hose holding device 46 for the liquid suction hose 34 and surplus liquid hose 38, and FIG. 4 is a perspective view of the hose holding device 46 for the water supply tank 26. 46 is a sectional view of the hose holding device 46 viewed from below, showing the attached state of the hose holding device 46. FIG. The arm 48 is formed in a J-shape that straddles the upper edge of the water tank 26 from the inside and outside, and the knob bolt 50 is screwed into the outer end of the arm 48 . The holding member 52 is integrally connected to the lower end of the inner end of the arm 48, and has two hose insertion portions 54 that open upward and downward. Each hose insertion part 5
4 has a cylindrical shape with a notch 73 in a part of the circumferential direction, and is elastically deformable in the radial direction inside and outside.

The liquid suction hose 34 and the remaining liquid hose 38 are located at a predetermined length from the end on the water supply tank 26 side.
It is inserted into the hose insertion portion 54 through the notch 73 of each hose insertion portion 54 . After inserting the liquid suction hose 34 and the remaining liquid hose 38 into each hose insertion part 54, turn the knob bolt 50 to press the tip of the knob bolt 50 against the outer surface of the water tank 26. As a result, the holding member 52 is pressed against the inner surface of the water tank 26, and the hose insertion portion 54 is deformed into a shape crushed in the axial direction of the knob bolt 50. That is, the hose insertion portion 54 has the gap in the notch 73 reduced to such an extent that the liquid suction hose 34 and the residual liquid hose 38 are prevented from coming out of the notch 73, and the minimum inner diameter of the hose insertion portion 54 is reduced. Reduced. Thereby, the liquid suction hose 34 and the remaining liquid hose 38 receive a predetermined squeezing force from the hose insertion portion 54, and are held in the hose insertion portion 54 while maintaining a predetermined passage cross-sectional area. The lower end of the strainer 36 can be held floating at a height h above the bottom of the water tank 26. Foreign matter 56 such as dirt settles at the bottom of the water supply tank 26, but since the strainer 36 is appropriately spaced from these foreign matter 56, clogging of the strainer 36 due to these foreign matter 56 is suppressed.

FIGS. 5 and 6 show another hose holding device 46b.
FIG. 2 is a perspective view and a cross-sectional view of the attached state viewed from below. The hose holding device 46b includes a knob 58 with a shaft instead of the knob bolt 50 in the hose holding device. The shafted knob 58 is inserted through the outer end of the arm 48 and has a bulging pressing portion 60 at its tip. compression coil spring 6
2 is fitted onto the shaft of the shafted knob 58 and is compressed between the pressing portion 60 and the arm 48 to urge the pressing portion 60 against the outer surface of the water tank 26 . When inserting the liquid suction hose 34 and the residual liquid hose 38 into each hose insertion part 54, pull the shafted knob 58 from the arm 48 against the compression coil spring 62, and close the gap in the notch 73 of the hose insertion part 54. Then, the liquid suction hose 34 and the remaining liquid hose 38 are inserted into the hose insertion part 54 through the notch 73 of the hose insertion part 54. When the tension on the shafted knob 58 is released, the shafted knob 58 is pushed toward the water supply tank 26 by the compression coil spring 62, and the pressing part 60 is pressed against the outer surface of the water supply tank 26, and the holding member 52 is pressed against the inner surface of the water tank 26, and the inner diameter of the hose insertion portion 54 is reduced. As a result, the liquid suction hose 34 and the remaining liquid hose 38 are held in the hose insertion part 54 by an appropriate squeezing force from the hose insertion part 54.

FIG. 7, FIG. 8, and FIG. 9 are a perspective view of another hose holding device 46c, a partial sectional view of the outer end, and a sectional view of the attached state viewed from below. The hose holding device 46c includes a rotatable cam 64 at the outer end of the arm 48. The cam 64 has a substantially arc-shaped cam surface 65 that can be pressed against the outer surface of the water tank 26 and can be appropriately elastically deformed, and is rotatably fitted to a shaft portion at the lower end of the outer end of the arm 48. ing. The retaining ring 66 is fitted to the lower end of the shaft at the end of the arm 48 into which the cam 64 is fitted, and prevents the cam 64 from coming off the shaft.
After inserting the liquid suction hose 34 and the residual liquid hose 38 into each hose insertion part 54, rotate the cam 64 to a position where the cam surface 65 contacts the outer surface of the water tank 26 over a predetermined circumferential range. Then, cam 64
The end without the cam surface 65 is displaced away from the outer surface of the water tank 26. As a result, the holding member 52 is pressed against the inner surface of the water supply tank 26 to reduce the inner diameter of the hose insertion portion 54, and the liquid suction hose 34 and the remaining liquid hose 38 are
It is held in the hose insertion part 54 by an appropriate clamping force from.

[Effect of idea]

The effects of the hose holding device of this invention are as follows.

(a) By operating the operating part on the outside of the liquid tank, the hose insertion part and the operating part squeeze the opening edge of the liquid tank from the inside and outside, and the hose holding device is attached to the opening edge of the liquid tank. At the same time, the hose insertion part is elastically compressed to tighten and hold the hose, so a dedicated operation part for holding the hose in the hose insertion part can be omitted, and parts are not required. The score can be reduced.

(b) Since the operator only operates the operating part on the outside of the liquid tank, the risk of hands touching the liquid in the liquid tank or dropping parts such as screws into the liquid tank is eliminated. can.

(c) The hose insertion part has a notch in a part of the circumference, and by contracting and closing this notch, hoses having a wide diameter range can be appropriately held in the hose insertion part.

[Brief explanation of drawings]

Figures 1 to 9 relate to embodiments of this invention, and Figures 1 and 2 are perspective and cross-sectional views showing the state in which the hose holding devices for the liquid suction hose and surplus liquid hose are attached to the liquid tank. Figure 3 is a perspective view of the hose holding device for the liquid suction hose and surplus liquid hose, Figure 4
The figure shows how the hose holding device is attached to the liquid tank, viewed from the bottom. Figures 5 and 6 are perspective views of other hose holding devices, and cross-sectional views of the attached condition seen from the bottom. , Fig. 7, Fig. 8
9 and 9 are a perspective view of another hose holding device, a partial cross-sectional view of the outer end and a cross-sectional view of the attached state viewed from below, and FIG. 10 is a diagram explaining the conventional situation in the spraying operation of cleaning liquid. It is. 26... Water supply tank (liquid tank), 32...
Water (liquid), 34...Liquid absorption hose (hose), 38
... Surplus liquid hose (hose), 46, 46b, 46
c... Hose holding device, 48... Arm (crotch),
50...Knob bolt (operation part), 54...Hose insertion part, 58...Knob with shaft (operation part), 62...
...Compression coil spring (operating part, biasing spring),
64...Cam (operation part), 73...Notch.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A crotch portion 48 disposed so as to straddle the opening edge of the liquid tank 26 that stores the liquid 32 therein;
It is connected to the crotch part 48 on the inner surface side of the liquid tank 26, has a notch 73 in a part of the circumferential direction, and is inserted through the hoses 34, 38 and is elastically compressible in the tightening direction of the hoses 34, 38. The hose insertion portion 54 is configured to freely release the biasing force toward the outer surface of the liquid tank 26 due to contact with the outer surface of the liquid tank 26, and the liquid tank is moved at a position opposite to the hose insertion portion 54. operation parts 50, 58, 62, and 64 connected to the crotch part 48 on the outer surface side of the hose insertion part 54, and when the operation parts 50, 58, 62, and 64 are operated, the hose insertion part 54 is connected to the liquid tank. 26, and the notch 73 can be deformed in the contraction/closing direction. (2) The operating parts 50, 58, 62, and 64 include a knob bolt 50 that is screwed into the end of the crotch part 48 so as to contact the outer surface of the liquid tank 26 at the tip end. A hose holding device according to claim 1 of the patent registration claim. (3) The operation parts 50, 58, 62, and 64 have shafts that are supported at the end of the crotch part 48 so as to be freely displaceable in the axial direction so that the tip abuts the outer surface of the liquid tank 26. The hose holder according to claim 1, which is a registered utility model, characterized in that it has a knob 58 and a biasing spring 62 that biases the shafted knob 58 toward the outer surface of the liquid tank 26. Device. (4) The operating parts 50, 58, 62, and 64 include a cam 64 coupled to the end of the crotch part 48 so as to be switchable between a rotational position in which the cam 64 contacts the outer surface of the liquid tank 26 and a rotational position in which it separates from the outer surface of the liquid tank 26. A hose support device according to claim 1, characterized in that the hose support device is characterized in that: