CN2062295U - Indicating device for vehick gear grade - Google Patents

Abstract

The utility model relates to an indicating device for a motor vehicle gear grade, which comprises a converting control switch, unidirectional switch circuits, a nixie pipe, a current limiting resistor and a power source. The utility model is characterized in that the converting control switch causes different unidirectional switch circuits to be in an operating condition according to the changing of the vehicle gear grade. Thus the nixie pipe accordingly displays the gear grade numbers of the motor vehicle at work, which is convenient to the operation of a motor vehicle. The utility model can bring convenience to operators and the operators can judge the gear grade in time and accurately, and the mechanical wear can be decreased.

Description

Indicating device for vehick gear grade

The utility model relates to a kind of device of display machines motor-car gear.

In the existing self-propelled vehicle gear display device, generally be self-propelled vehicle speed change thigh last one fixedly salient point move with the speed change thigh, connect the circuit in the read out instrument, make that the indicator lamp in the read out instrument is luminous, the Neutral Position that this device all can only the display machines motor-car judges promptly and accurately that to the operator gear brings difficulty, during the conversion gear, the gear of difficulty after promptly and accurately judging gear shift usually causes driving engine neutral gear fast idle, and the driving engine critical part is produced severe wear.

The purpose of this utility model be to provide a kind of can be on a charactron the accurate device of each different gears of display machines motor-car.

The utility model is finished as follows: be fixed with the conversion master cock at self-propelled vehicle speed change thigh one end, the gear binding post of conversion master cock and the diode cathode in the one way switch circuit join, the positive pole of the diode in the one way switch circuit joins with the pin of charactron, one end of the voltage input end of charactron and current-limiting resistance joins, the other end of current-limiting resistance and the positive pole of power supply join, and the grounding jumper of the negative pole of power supply and conversion master cock joins.

This device can promptly and accurately be judged the residing gear of self-propelled vehicle, and cost is low, and is easy for installation, beautiful and applicable.

Further specify this utility model below in conjunction with accompanying drawing.

Fig. 1 is a utility model principle of work block scheme.

Fig. 2 is the utility model circuit diagram.

With reference to accompanying drawing, on an end (12) of self-propelled vehicle speed change thigh, fix a movable contact spring (13) with excellent conductive performance and mechanical strength, go up according to the fixing fixed touching plate (15) in position, orthohexagonal six summits at conversion master cock base (14), and draw corresponding gear binding post (16) from fixed touching plate, with this base sheath on speed change thigh one end (12), and movable contact spring (13) is formed conversion master cock (1), one way switch circuit (2) is to be made of six parallel circuits: with the negative pole of 5 diodes and connect the back and connect the pin D of the same respectively charactron of the positive pole of diode (3) with 5 grades of binding posts of conversion master cock ₂, D ₄, D ₆, D ₇, D ₉Connect, constitute parallel circuit (6); With the negative pole of 4 diodes and connect the back and join the pin D of the same respectively charactron of the positive pole of diode (3) with 4 grades of binding posts of conversion master cock ₄, D ₆, D ₇, D ₁₀Connect, constitute parallel circuit (7); With the negative pole of 5 diodes and connect the back and join the pin D of the same respectively charactron of the positive pole of diode (3) with 3 grades of binding posts of conversion master cock ₂, D ₄, D ₆, D ₉, D ₁₀Join, constitute parallel circuit (8); With the negative pole of 5 diodes and connect the back and join the pin D of the same respectively charactron of the positive pole of diode (3) with 2 grades of binding posts of conversion master cock ₁, D ₂, D ₆, D ₉, D ₁₀Connect, constitute parallel circuit (9); With the negative pole of 2 diodes and connect the back and join the pin D of the same respectively charactron of the positive pole of diode (3) with 1 grade of binding post of conversion master cock ₄, D ₁₀Join, constitute parallel circuit (10); With the negative pole of 6 diodes and connect the back and join the pin D of the same respectively charactron of the positive pole of diode (3) with the O shelves binding post of conversion master cock ₁, D ₂, D ₄, D ₇, D ₉, D ₁₀Connect, constitute parallel circuit (11).Then the pin D of charactron (3) ₃Or D ₈One end of same current-limiting resistance (4) joins, and the positive pole of the other end of current-limiting resistance (4) and power supply (5) joins, and the negative pole of power supply joins with an end (12) of speed change thigh.

Claims (1)

1, a kind of device of display machines motor-car gear, it comprises the conversion master cock, the one way switch circuit, charactron, current-limiting circuit, power supply, it is characterized in that: on self-propelled vehicle speed change thigh one end [12], be fixed with conversion master cock [1], diode cathode in gear binding post on the conversion master cock [1] and the one way switch circuit [2] joins, the pin of the anodal same charactron [3] of the diode in the one way switch circuit [2] joins, the voltage input end of charactron [3] and current-limiting resistance [4] join, get the other end of leakage resistance [4] and the positive pole of power supply [5] and join, the negative pole of power supply [5] and the grounding jumper of conversion master cock join.

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