JPH0212604Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to an electrical resistance type grain moisture meter, and is a proposal for improving its detection device.

[Prior art and its problems]

An electrical resistance type grain moisture meter is an instrument that crushes grains by applying strong pressure in a moisture detection section, and measures the electrical resistance value by passing an electric current through the crushed grains to detect the moisture value of the grains. In general, the smaller the container, the more convenient it is, but when the container is made smaller, the handle ring 11 of the male screw 4 of the detector 8 installed there also becomes smaller and the radius becomes smaller, making it difficult to rotate with finger force. It requires a huge rotational force, making it difficult to transmit the pressure necessary for crushing, and the fingertips also suffer from severe pain and discomfort. If this handle ring were to be made large, the diameter of the handle ring would be limited to a small diameter range because the vessel would not be able to be held on a table and rotated.

[Means for solving problems]

Therefore, in the present invention, a moisture detection section 8 is formed by a top surface 5 of the male screw 4 as an upper electrode and a bottom surface 7 as a lower electrode as a switch of a circuit 3 including an amplifier 2 of a voltmeter 1. , a handle ring 11 which is rotated by finger force around the head of the male screw 4 which is removably screwed onto the male screw 6 fixed to the upper wall portion 10 of the box body 9 in which the voltmeter 1 is built. , a non-circular pot hole 13 is recessed into the upper surface 12 of the head of the male screw 4, and a case of a ratchet 15 is provided at the end of the handle rod 14 so as to be removably inserted into the non-circular pot hole 13. A protrusion 17 that bends and protrudes from 16 into a key shape.
By providing this, it became a means of solving the problem.

[Effect]

When the grains are supplied to the moisture detection part 8 and the grains touch each end surface, the handle ring 1 is lightly pressed with the tip of a finger.
Twist 1 and tighten the handle 1 from the point where tightening pressure is applied.
Insert the protrusion 17 of 4 into the pot hole 13, and insert the long handle 14.
By rotating the ratchet 15 by reciprocating and setting the direction claw 18 of the ratchet 15 to tighten, it is possible to easily crush grains at intervals between each end face of the moisture detection part 8 with strong pressure. .

〔Example〕

If a stopper is provided to restrict the rotational position of the male screw 4, when the male screw of the detection section hits the stopper, the voltage, ie, the moisture value, may be read to detect moisture.

Also, when loosening the male screw 4, switch the direction claw 18 in the opposite direction, rotate the handle rod 14 back and forth, and let it idle.
Next, you can easily remove the male screw by rotating it in the opposite direction with your fingertips.

Note that 19 is a sample plate that is inserted into the moisture detecting section 8, and 20 is a display for measuring the measured moisture value.

[Effect of idea]

In the present invention, the ratchet handle is removably inserted and rotated back and forth, so it does not require more than one rotation, so the action of the long handle and large diameter handle can be utilized. Sufficient pressure can be applied to the grains with a light motion, which has the effect of increasing the accuracy of moisture detection.

[Brief explanation of drawings]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a perspective view of the grain moisture meter, and FIG. 2 is a sectional view thereof. 1...Voltmeter, 2...Amplifier, 3...Circuit, 4
...Male thread, 5...Tip surface, 6...Female thread, 7...
... Insulating bottom wall surface, 8 ... Moisture detection section, 9 ... Vessel body,
10... Upper wall portion, 11... Handle ring, 12... Upper surface of head, 13... Pot hole, 14... Handle, 15... Ratchet, 16... Case, 17... Protrusion, 18
... Direction claw, 19 ... Sample plate, 20 ... Display.

Claims (1)

[Scope of utility model registration request] A moisture detecting section 8 is formed by the tip surface 5 of the circuit 3 including the amplifier 2 of the voltmeter 1 with the male screw 4 as the upper electrode and the bottom surface 7 as the lower electrode. A grip ring 11 is formed around the head of the male screw 4, which is removably screwed onto the upper wall 10 of the box body 9 containing the holder, and rotates by finger force. A non-circular pot hole 13 is recessed into the upper surface 12 of the head, and a key-shaped hook is inserted from the case 16 of a ratchet 15 provided at the end of the handle rod 14 so as to be removably inserted into the non-circular pot hole 13. A detection device for an electric resistance type grain moisture meter, characterized in that a bent protrusion 17 is provided.