JPS5926804Y2 - Valve operating device for pneumatic soil conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a valve operation device for a pneumatic soil improvement machine in which a driving shaft and a compressor are directly connected, and a surge tank, a valve mechanism, a driving tube, etc. are provided, and the pneumatic soil improvement machine is configured to be portable.

In other words, it is possible to improve the soil for growing crops by injecting compressed air into the soil through a driving tube inserted into the soil, and the valve mechanism for regulating the discharge of compressed air can be opened and closed easily and reliably. In addition, especially for models with a direct connection between the prime mover and the compressor, when starting the prime mover and warming up the machine, the compressed air can be discharged without any problem by simply laying the machine on its side. The object of the present invention is to provide a device that can be easily handled, has a simple structure, and can be suitably implemented.

Next, a concrete example will be described.

Fig. 1 shows a front view of the entire pneumatic soil improvement machine, and the uppermost part shows a manual entrainment starter 11, a crankcase part 12,
A prime mover A including a cylinder part 13, a muffler 15, etc.
At the same time, a fuel tank 14 is installed on the side thereof, and a compressor B consisting of a case 21, a cylinder 22, an air purifier 23, etc. is installed directly below the prime mover A, and the case 21 of the compressor B is The air purifier 23 is installed at the bottom.
and a surge tank D connected through pipe E,
A compressor B driven by a prime mover A is installed and configured so that compressed air can be stored in a surge tank D.

In addition, a handle C is installed around the drive mA and the compressor B, and the handle C is attached to the case 21.
A handle pipe 31 fixed to the circumferential surface of the handle pipe 31 is extended upward on both sides, grips 32 are attached to the upper sides of the handle pipe 31 on both sides, and a stand 33 which also serves as a protector for the prime mover A is connected to the handle pipe 31. and configure.

A valve mechanism J is installed at the bottom of the bottom plate F fixed to the bottom of the surge tank D with bolts H.
A valve hole 41a is formed below the center of the body 41 which is aligned with the lower part of the bottom plate F and fixed with a bolt P.
A spherical valve body 42 having a one-way valve hole 42a communicating with the valve hole 41a is rotatably fitted into the valve seat 43 fitted above a, and the upper blade of the spherical valve body 42 pushes the valve seat 43 away from the valve seat 43. A valve hole 44a is formed in the fitting body 44 which is fitted so as to be connected to the body 41, and the end of the rotatable valve shaft 45 which is fitted into the body 41 in the lateral force direction with the tip protruding outward. It is fitted and fixed to the side of the valve body 42, and is locked by the bonnet 47 so that the valve stem 45 does not separate, and by rotating the valve stem 45 by 90 degrees, the valve body 42 is similarly rotated. It is designed so that it can be opened and closed.

Further, a flange 61 and a stroke pipe N are sequentially joined to the lower part of the body 41 and fixed by a pole P, and a guide communicating with the valve hole 41a is provided inside the center of the striking part 61a formed at the center of the flange 61. The upper part of the cylinder 62 is fitted and fixed, and the upper part of the driving cylinder 82, which is slidably fitted to the guide cylinder 62, has a hit part 81 that can abut against the lower surface of the hitting part 61a.
A dish-shaped protector Q that can be fitted and fixed to the ground is installed at the lower part of the stroke pipe N, and a cone 83 that plunges into the soil is at the lower tip of the driving tube 82 that extends downward from the protector Q. is installed and a blowhole 83a is formed in its proximal rod.

The tip of the valve shaft 45 is repeatedly applied to the lever mechanism K for external force, and the lever mechanism has an intermediate portion of the lever 53 attached to the tip of a support rod 53d that is rotatably attached to the outer circumference of the valve mechanism J. A petal 53c is fixed to one end of the lever 53, and a pin 51a that fits into a long hole 53a formed at the other end of the lever 53 is fixed to one end of the short valve lever 51. The other end of the valve lever 51 is fitted onto the tip of the valve shaft 45 and fixed by a locking pin 52, and a tension spring is applied from below to a hook portion 53b bent at the tip of the other end of the lever 53. When the upper end of L is repeatedly hit, the valve lever 51 is rotated downward due to the tensile force of the tension ring L, and the valve body 42 is in the closed state.
When the valve lever 3c is slightly depressed downward, the short valve lever 51 is rotated upward by 90 degrees depending on the lever ratio, and the valve body 42 is opened.

In addition, as shown in FIG. 5, the cone 83 side and the stand 3
If you turn the whole thing sideways so that 3 touches the ground, Peme JL15
The petal 53c is formed to extend long so that the petal 53c contacts the ground and rotates in a direction to open the valve body 42.

When starting the prime mover A during work, depress the pedal 53c and rotate the lever 53 about the support rod 53d, as shown by the solid line in FIG. 3, and the valve lever 51 will rotate 90 degrees. The valve body 42 is rotated 90 degrees via the valve shaft 45, and the valve body 42 is in the open state as shown in FIG. 4, but the cone 83 side and the stand 33 are in contact with the ground as shown in FIG. If you turn the whole thing on its side like this,
The petal 53c rotates to hold the valve body 42 open and remains in contact with the ground, and in this state, even if the engine A is started by the manual retraction starter 11, the compressed air generated by the compressor B will not flow. Fumarole port 83a of included tube 82
As a result, the motor A can be started and warmed up.

When the aircraft is erected after starting, the tension force of the tension spring L causes the petal 53c and the lever 53 to move back as shown by the imaginary line in FIG. It moves to the closed state.

During work, the tip cone 83 of the driving cylinder 82 is also inserted into the soil, and the driving cylinder 82 is inserted deeply into the soil by the impact caused by the hammer action of the striking part 61a and the struck part 81, and the petal is removed. By depressing the valve 53c, the valve body 42 can be operated and compressed air can be forced out from the blowhole 83a into the soil to perform work.

As described above, the present invention provides a pneumatic soil improvement machine in which the prime mover and the compressor are directly connected, and is equipped with a surge tank, a valve mechanism, a driving cylinder, etc., and is configured to be portable. The lever mechanism is installed so that opening and closing operations can be performed, and the pedal is extended to the side so that when the entire machine is laid down, the petal connects to the ground with the valve body open and becomes locked. Because of this structure, the valve mechanism can be reliably and easily opened and closed by pressing the pedal, and when starting the prime mover, the compressed air can be discharged without any problem by simply laying the aircraft on its side and the pedal comes into contact with the ground. The starting operation can be easily performed by placing the engine in the position where it is in the state, and the starting and warming-up operations of the prime mover are facilitated, and it has the advantage of being of a simple structure and being able to be carried out to the best of its ability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall front view;
Figure 2 is a side view, Figure 3 is an enlarged view of a part of Figure 2,
FIG. 4 is a sectional view of a part of FIG. 2, and FIG. 5 is an explanatory diagram of the operation. A... Prime mover, B... Compressor, D... Surge tank, J... Valve mechanism, 82... Driving tube, 42 ... Valve body, 5
3c...petal, K...lever mechanism.

Claims (1)

[Scope of utility model registration request] In a pneumatic soil improvement machine in which the prime mover and the compressor are directly connected and are configured to be portable and equipped with a surge tank, a valve mechanism, a driving tube, etc., the valve body of the valve mechanism is opened and closed by a petal type lever mechanism. In addition, when the entire fuselage is turned sideways, the pedals are installed so that they extend to the side so that the pedals connect to the ground in an open position and become locked. Characteristic valve operating device.