JP2744960B2 - Hose joint for suction and discharge of suction tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose joint for suction and discharge of a suction and discharge tank. More specifically, the present invention relates to a hose joint provided at a suction / discharge port of a suction / discharge tank mounted on a suction vehicle for collecting muddy industrial waste, sewage sludge, sludge, and the like.

[0002]

2. Description of the Related Art A suction vehicle for collecting muddy industrial waste, sewage sludge, sludge and the like is equipped with a suction / discharge tank.
A hose joint for connecting a hose is provided at a suction / discharge port of the suction / discharge tank. This hose joint is provided with a fitting attached to the suction and discharge port side and a mounting tool attached to the hose side.A male screw is provided on the receiving tool on the suction and discharge port side, and a female screw screwed to this is mounted on the hose-side mounting tool. Provided, and these are screwed and connected.

[0003]

However, the conventional hose joint as described above has the following problems. That is, to screw and connect the receiving device and the mounting device,
The hose side fitting must be rotated four or five times. In this case, it takes too much time to connect and detach the joint, which is inconvenient when it is necessary to frequently attach and detach the joint.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a hose joint for a suction / discharge tank of a suction / discharge tank which can be quickly attached and detached at a suction / discharge port of a suction / discharge tank mounted on a suction vehicle or the like. The purpose is to do.

[0005]

Means of the present invention taken to solve the above problems are as follows. A hose joint for intake / exhaust port of an intake / exhaust tank mounted on a suction vehicle or the like, the hose joint comprising a receiving device attached to the intake / exhaust port side, and a mounting device attached to the hose side. The fixture has a fixing means, a seat plate having a liquid passage hole, a connecting pipe provided on an outer periphery of the liquid passage hole of the seat plate, and an engaging member projecting from an inner wall portion of the connecting pipe. And the fitting is provided on a wall of the fitting pipe, a fitting means for connecting a hose, a fitting pipe capable of being fitted inside the connecting pipe of the receiving tool with substantially no gap. An engagement groove provided with an engagement member of the connection pipe capable of being engaged, and bent at a substantially right angle in a length direction from a mouth of the insertion pipe and further in a circumferential direction. A hose joint for the suction and discharge port of the suction and discharge tank.

(Operation) When connecting the fitting of the hose joint to the fitting of the hose joint, the fitting pipe of the fitting is fitted into the connecting pipe of the fitting, and the fitting groove entrance provided in the mouth of the fitting pipe is provided. Is further pressed in accordance with the engaging member of the connecting pipe, and the mounting tool is turned in a required direction so that the engaging member is engaged with the circumferential groove among the engaging grooves. In this way, it is not necessary to turn the mounting tool many times when connecting, and quick work is possible. When removing the receiving device and the mounting device, the procedure may be generally performed in the reverse order.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to an embodiment shown in the drawings. FIG. 1 is a schematic perspective view of a suction wheel provided with a hose joint according to the present invention, FIG. 2 is a front view showing an embodiment of a hose joint receiving device according to the present invention,
3 is a sectional view taken along line AA in FIG. 2, FIG. 4 is a front view showing one embodiment of a hose joint fitting according to the present invention, and FIG. 5 is a partial sectional view taken along line BB in FIG.

The suction wheel V has a receiver tank T which is a suction / discharge tank, and a suction pipe P1 and a discharge pipe P2 are provided at a rear portion thereof. In addition, the receiver tank T has a structure in which the front part can be lifted and the discharge can be performed efficiently. The suction pipe P1 is provided obliquely downward, and the discharge pipe P2 is provided substantially horizontally. A receiver 1 forming a hose joint is attached to the suction pipe P1 and the discharge pipe P2.

Please refer to FIG. 2 and FIG. Reference numeral 1 is a receiving device,
A circular seat plate 10 having a liquid passage hole 11 in the center is provided. The seat base 10 is provided with four bolt holes 12 as fixing means at regular intervals in the circumferential direction. In addition, liquid passage hole 1
1, a slightly larger connecting pipe 13 is provided.
Is provided with a stepped portion 14 for contacting the front end portion. A tapered portion 15 having a widened distal end is provided on the inner surface of the distal end edge of the connecting pipe 13. The tapered portion 15 is provided for facilitating the fitting of the fitting tube 20 of the attachment 2 described later. The connecting pipe 13 has a threaded hole 16
Is provided. A thumb screw 17 which is a fastening screw is screwed into the screw hole 16. Also, on the inner surface of the connecting pipe 13,
An engagement pin 18 which is an engagement member protruding in the diameter direction of the tube.
Are provided at two locations facing each other.

Referring to FIG. 4 and FIG. Reference numeral 2 denotes a mounting tool, which is not shown in FIG. The mounting tool 2 includes a fitting tube 20.
It has. The outer diameter of the fitting pipe 20 is formed slightly smaller than the inner diameter of the connecting pipe 13. The handlebar 22 is provided at two places on the outer peripheral surface of the fitting tube 20 so as to protrude outward in the diameter line direction. An engagement groove 21 corresponding to the engagement pin 18 is provided at two places in a wall of the insertion opening of the insertion tube 20. The engagement groove 21 is substantially L-shaped and includes a vertical groove 211 provided in the length direction of the tube and a horizontal groove 212 provided at a right angle to the circumferential direction of the tube. In addition, the lateral groove 21 of each engagement groove 21
2 are provided in the same rotation direction.

The handlebar 2 on the outer peripheral surface of the fitting tube 20
A mounting groove 23 is provided on the base side from the entire circumference 2. An O-ring 24 made of rubber is mounted in the mounting groove 23. Further, an engagement hole 25 for engaging the screw tip of the thumbscrew 17 is provided on the outer peripheral surface of the fitting tube 20 further on the base side than the mounting groove 23. Further, a helical groove 26 is provided on the tip side of the inner peripheral surface of the fitting tube 20 as a connecting means for connecting a hose (see FIG. 6) having a helical body on the outer peripheral surface.

(Operation) FIG. 6 is a cross-sectional view showing a state in which a hose is connected to a mounting tool, and a hose joint receiver is connected to the mounting tool. The operation of the present embodiment will be described with reference to FIGS. For example, when sucking sludge into the receiver tank T, the mounting tool 2 provided at the distal end of the hose 3 is connected to the receiving tool 1 provided at the mouth of the suction pipe P1. The hose 3 is provided with a spiral body 31 on the outer peripheral surface of a hose body 30 as shown in the figure, and by screwing the spiral body 31 into the spiral groove 26, the fitting 2
Is connected to

In this case, the fitting pipe 20 of the mounting tool 2 is fitted into the connecting pipe 13 of the receiving tool 1, and the engaging groove 21 provided at the mouth of the fitting pipe 20 is engaged with the engaging pin of the connecting pipe 13. 18, the fitting 2 is rotated in the direction opposite to the direction of the lateral groove 212 so that the engaging pin 18 engages with the lateral groove 212. Then, the thumbscrew 17 of the connecting pipe 13 is tightened to press the front end of the connecting pipe 13 into the engaging hole 25 to fix the fitting pipe 20 so as not to rotate. In this way, it is not necessary to rotate the mounting tool 2 many times when connecting, and quick work is possible. Also, when removing the receiving device 1 and the mounting device 2, it is sufficient to perform the above procedure in substantially the reverse order.

FIG. 7 is a front view showing another embodiment of the hose joint fitting according to the present invention, and FIG.
It is a -C partial sectional view. The attachment 2a of the present embodiment includes a connection pipe 29 for externally fitting the hose 3 as connection means for connecting the hose 3. After being fitted into the connection pipe 29, the hose 3 is connected by tightening the entire circumference with a fastener (not shown). The method of use and operation are substantially the same as those of the above-mentioned wearing tool 2. 7 and 8, the same or equivalent parts as those of the attachment 2 shown in FIGS. 4 and 5 are denoted by the same reference numerals. The present invention is not limited to the illustrated embodiment, but various modifications are possible within the scope of the claims.

[0015]

The present invention has the above configuration and has the following effects. That is, when connecting a hose to an intake / exhaust pipe provided in an intake / exhaust tank such as a suction truck, the fitting pipe of the fitting of the hose joint is fitted into the connecting pipe of the receiving fitting, and the fitting provided at the mouth of the fitting pipe. The mating groove entrance is pushed in accordance with the engaging member of the connecting pipe, and the attachment is turned in a required direction so that the engaging member is engaged with the circumferential groove of the engaging groove so as to be connected.
As described above, unlike the conventional screw type hose joint, it is not necessary to turn the mounting tool many times when attaching and detaching the hose joint, and the work can be performed quickly.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a suction wheel provided with a hose joint according to the present invention.

FIG. 2 is a front view showing one embodiment of a hose joint receiving device according to the present invention.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a front view showing an embodiment of a hose joint mounting tool according to the present invention.

FIG. 5 is a partial sectional view taken along line BB in FIG. 4;

FIG. 6 is a cross-sectional view showing a state in which a hose is connected to the mounting device, and the receiving device of the hose joint and the mounting device are connected.

FIG. 7 is a front view showing another embodiment of the hose joint mounting tool according to the present invention.

8 is a partial sectional view taken along the line CC in FIG. 7;

[Explanation of symbols]

 V Suction car T Receiver tank P1 Suction pipe P2 Discharge pipe 1 Receiver 10 Seat plate 11 Liquid passage hole 12 Bolt hole 13 Connecting pipe 14 Stepped part 15 Tapered part 16 Screw hole 17 Thumb screw 18 Engagement pin 2 Fitting 20 Fitting pipe DESCRIPTION OF SYMBOLS 21 Engagement groove 211 Vertical groove 212 Horizontal groove 22 Handlebar 23 Mounting groove 24 O-ring 25 Engagement hole 26 Spiral groove 2a Mounting tool 29 Connecting pipe

Claims (1)

(57) [Claims] 1. A hose joint for an intake / exhaust port of an intake / exhaust tank mounted on a suction vehicle or the like, the hose joint comprising: a receiving device attached to the intake / exhaust port side; and a mounting device attached to the hose side. The receiving device is provided with a fixing means, a seat plate having a liquid passage hole, a connection pipe provided on an outer periphery of the liquid passage hole of the seat plate, and a projecting portion provided on an inner wall portion of the connection tube. An engagement member;
The fitting is provided on a wall of the fitting pipe, and a connecting means for connecting a hose, a fitting pipe capable of being fitted inside the connecting pipe of the receiving tool substantially without a gap. An engagement groove in which an engagement member of the connection pipe is engageable, and is provided by being bent at a substantially right angle in a length direction from a mouth of the insertion pipe and further in a circumferential direction,
A hose joint for suction and discharge of a suction and discharge tank, comprising: