CN201034587Y

CN201034587Y - automatic alarm level

Info

Publication number: CN201034587Y
Application number: CNU2007201412733U
Authority: CN
Inventors: 韩子杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-02
Filing date: 2007-04-02
Publication date: 2008-03-12
Anticipated expiration: 2017-04-02

Abstract

The utility model relates to an automatic alarm level belongs to the measuring instrument class. It is reformed transform by current spirit level and is made, the characteristic is: the liquid in the cavity is mercury liquid, the center of the upper surface and the lower surface in the cavity are respectively provided with a positive electrode and a negative electrode, when the cavity is inclined, the two electrodes are communicated and electrified through the conductive mercury liquid, and when the cavity is horizontal, the cavity is disconnected, so that a circuit switch is formed, and the circuit switch has the visual centering function of the existing level; the automatic inclination alarm device and the light-emitting circuit form a loop, can automatically alarm when inclined, so that the inclination degree of the leveling staff reaches quantitative control, and the observation precision is improved.

Description

Automatic warning level

(1) technical field

The utility model is a kind of automatic warning level, relates to a kind of inclination autoalarm that is installed on the levelling staff specifically, belongs to the surveying instrument class.

(2) background technology

Existing level, be difficult to quantitatively control the inclination of levelling staff, personnel are tired out or when lacking a sense of responsibility, and often tilt to transfinite, and force observation person's reading repeatedly, get maximum or empirical value, easily tired, cause other gross error sometimes thus, cause and do over again, scale directly can directly not make error increase, and is one of level reason of doing over again.The neutral straight scale of real work is unpractical, all there is inclination in various degree, but it is upright straight to have a moment, how to catch upright straight moment make observation person steady and sure relieved to scale once taking aim at note, make scale tilt comparatively quantitative be controlled at the grade limit poor within, in case the dark red coincidence of declivity observation etc., how in time to be reminded, or difference critical return survey, the state of mind of observation person's high concentration is alleviated, in the reality, this is one problem to be solved.

(3) utility model content

The purpose of this utility model is to make accurate and quantitative being controlled within the limit difference of the inclined degree of levelling staff, can in time obtain during the level declivity observation reminding, and avoids so does over again, and slows down tense situation, to remedy the deficiencies in the prior art.

The technical solution of the utility model is such: it is formed by the existing circular bubble or the transformation of the way of pipe level; Be characterised in that: the ether in the former level chamber replaces with mercury solution, install embedded positive and negative electrode in the chamber on top-surface camber center and the bottom surface additional, it has on-off action, draw with illuminating circuit by lead and to have formed the closed-loop path, add the volume change of elastic rubber layer with the compensation mercury solution in the level chamber on Lower Half or the bottom surface, following electrode contacts passes rubber layer and directly contacts with mercury solution; Housing, bubble, mercury solution, electrode, rubber layer, lead general name level switch.

In the such scheme, two electrodes have lead to draw up and down, are connected with power supply, switch, high brightness glory light emitting diode, and power supply can be with No. 5 dry cells or button cell.

In the such scheme, also can add relay switch in the circuit, except that light emitting diode, general name level relay union switch.

In the such scheme, level switch and illuminating circuit can be placed apart as required.

In the such scheme, the housing of level switch can be a rectangular parallelepiped or cylindrical, and the curvature of the inside surface above it and differentiation line can require concrete definite according to the grade level.

In the such scheme, adjusting screw of the present utility model and mount fixing structure and existing level are basic identical, and the physical dimension of housing can be suitably big.

The utility model compared with prior art advantage is: the visuality placed in the middle that still has former level, make accurate and quantitative being controlled within the limit difference of inclined degree of levelling staff, observational error reduces, work efficiency improves, and labour intensity reduces, and it is simple in structure, cost is extremely low, stable performance, manufacturer and user take like a shot, and popularize easily.

(4) description of drawings

Fig. 1 is the vertical profile synoptic diagram of right cylinder level switch when scale is vertical of level of reporting to the police automatically.

Fig. 2 is the schematic top plan view of level right cylinder level switch when scale is vertical of reporting to the police automatically.

Fig. 3 is the vertical profile synoptic diagram of level rectangular parallelepiped level switch when scale is vertical of reporting to the police automatically.

Fig. 4 is the level circuit diagram of reporting to the police automatically.

Fig. 5 is the level synoptic diagram when using on levelling staff of reporting to the police automatically.

Fig. 6 is that the level of reporting to the police automatically installs circuit diagram behind the relay switch additional.

Fig. 1 wherein. Fig. 2. Fig. 3. among Fig. 4: the 1st, lead, the 2nd, the top electrode contact, the 3rd, bubble, the 4th, the transparent glass or the case top of plastic material, the 5th, the housing of level switch, the 6th, serve as the mercury solution of conductor, the 7th, the elastic caoutchouc bed course, 8 is No. 5 or button cell, the 9th, and operating switch, the 21st, bottom electrode contact; 10 is high brightness diodes of sending out glory or passage of scintillation light among Fig. 4 Fig. 5, the 11st, and levelling staff, the 12nd, level switch, the 13rd, power supply and switch integration module, the 21st, bottom electrode contact, the 22nd, relay switch.

(5) embodiment

Further specify the utility model below in conjunction with drawings and Examples.

Structure and the circuit of a kind of embodiment that Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 shows the utility model when using on levelling staff; Referring to Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5, its essential structure is: by case top 4, shell 5, be contained in the elastic caoutchouc bed course 7 of mercury solution 6 in the shell, bubble 3, lead 1, top electrode contact 2, bottom electrode contact 21, compensation mercury solution volume change, the automatic switch of having formed warning circuit jointly is a level switch 12; Again with power supply 8, operating switch 9 is sent out the high brightness diode 10 of glory or passage of scintillation light, and having formed warning circuit jointly is automatic warning level; Power supply 8 and operating switch 9 are integrated into 13 with level switch 12, high brightness diode 10, are installed on the levelling staff 11; Power supply 8 and operating switch 9 also can be integrated on the level switch housing.During use, the closed operating switch 9 of elder generation, when levelling staff tilted to transfinite, mercury solution 6 contacted with top electrode contact 2, circuit communication, diode is bright, not reading; Levelling staff is vertical, and bubble is placed in the middle, and circuit is obstructed, does not have caution, and read-record disconnects operating switch behind the end-of-job.

Structure and the circuit of second kind of embodiment that Fig. 1 Fig. 3 Fig. 5 Fig. 6 shows the utility model when using on levelling staff; Referring to Fig. 1 Fig. 3 Fig. 5 Fig. 6, its essential structure is: by case top 4, shell 5, be contained in elastic caoutchouc bed course 7, the power supply 8 of mercury solution 6 in the shell, bubble 3, lead 1, top electrode contact 2, bottom electrode contact 21, compensation mercury solution volume change, operating switch 9, the automatic switch of diode gauge tap 14, diode power source 18, relay switch 22 are common integrated warning circuit is a level relay union switch 15, be installed on the levelling staff, with the high brightness diode 10 of sending out glory or passage of scintillation light, having formed warning circuit jointly is automatic warning level again.During use, the closed operating switch 9 diode gauge tap 14 of elder generation, when levelling staff tilted to transfinite, mercury solution 6 contacted with top electrode contact 2, loop A closure, loop B disconnects, and diode does not work, not reading; Levelling staff is vertical, and bubble is placed in the middle, and top electrode contact 2, bottom electrode contact 21 are not communicated with, and loop A disconnects, loop B closure, and diode is bright, and read-record disconnects operating switch 9 diode switches 14 behind the end-of-job.

Claims

1. automatic warning level that on the levelling staff of surveying instrument, uses, it is formed by the existing level transformation of the way. and be characterised in that: the ether in the former level chamber replaces with mercury solution, add the positive and negative electrode and the illuminating circuit that even go out by lead above in the chamber on center and the bottom surface and formed closed circuit.

2. automatic warning level according to claim 1 is characterized in that flexible rubber spacer on interior Lower Half of level switch housing body cavity or the bottom surface.

3. automatic warning level according to claim 1, the housing that it is characterized in that the level switch can be a rectangular parallelepiped or cylindrical.

4. automatic warning level according to claim 1 is characterized in that can being integrated with relay switch in the illuminating circuit.