CN2389350Y

CN2389350Y - Automatic levelling water level

Info

Publication number: CN2389350Y
Application number: CN 99234184
Authority: CN
Inventors: 凌支援
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-01
Filing date: 1999-10-01
Publication date: 2000-07-26
Anticipated expiration: 2009-10-01

Abstract

The utility model relates to an automatic levelling water level which is provided with a bracket box of a frame structure, wherein a gravity arm capable of swing is arranged in the bracket box, a laser is arranged in the gravity arm and the power supply of the laser is supplied by a battery in the bracket box through an electric brush. The lower part and both sides of the gravity arm are provided with permanent magnets, laser beams rapidly realizes automatic levelling under the action of the gravity arm and the constraint of magnetic damping and irradiated target positions can all display red laser speckles or cross markers for the use of construction leveling or engineering quality examination.

Description

The Automatic Levelling level meter

The utility model belongs to a kind of surveying instrument, can be widely used in levelling or construction quality inspection in the building operation.

In building operation, in order to guarantee construction quality or accurately often to need to go to measure absolute altitude and levelling work with spirit-leveling instrument in order to survey, existing spirit-leveling instrument is divided into ordinary level and laser level etc., laser level is owing to have measurement accurately, and have visual light source and be subjected to liking of user deeply, but existing laser level is attached on the optical level, laser generator is by after the external power supply preheating, be emitted on the measurement target by telescope through superrefraction, the action need of this instrument can be operated through after the professional training, inconvenience is still arranged, remain to be improved.

The purpose of this utility model is to provide a kind of dispense with outer connecting power and preheating, and energy consumption is low, and is simple to operate, and need not professional training, and new type auto levelling level meter that can Automatic Levelling.

The purpose of this utility model is achieved through the following technical solutions, the support case of one framed structure is set, lay the weight arm that can swing in the support case, a laser instrument is installed in the weight arm, the power supply of laser instrument is supplied with by brush by the battery in the support case.Weight arm bottom and both sides are equipped with permanent magnet, laser beam promptly realizes automatic horizontal under the constraint of weight arm effect and magnetic damping, laser punctation or cross mark all can be seen in the target location that is irradiated to, and use for building operation levelling or construction quality inspection.

The utility model has utilized gravity swing and the about beam jitter principle for balance of magnetic damping to realize the Automatic Levelling of instrument dexterously, simultaneously utilize brush that power supply is imported in the laser instrument again, it is a kind of quick and suitable horizontal survey instrument, relatively have following characteristics with existing laser level: the 1. element of low energy consumption, by the button cell of three 1.5v, can satisfy reliable power requirement, no longer need external power supply, arranging batteries is in the instrument cover box, and it is very convenient to change battery; 2. the laser diode of lightweight small size directly is placed on the weight arm, makes Instrument structure simpler; 3. when not working, bi-directional brake can retrain rocking of weight arm, makes the resistance to shock of instrument better; 4. use this instrument laser diode need not preheating, can save the running time; 5. use this instrument need not carry out professional training, know at a glance, operate very simply, easily, the volume of whole instrument has only the size of half cigarette case, is easy to carry.

The utility model will be further described below in conjunction with accompanying drawing;

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model weight arm structural representation;

Fig. 3 is the utility model weight arm swing blade axle and brush conducting structure synoptic diagram;

The utility model comprises 1 laser instrument 3 as can be seen from accompanying drawing, it is characterized in that laser instrument 3 is mounted in the weight arm 1 that can swing, blade axle 2 and corrector 4 also are housed on weight arm 1, blade axle 2, positive device 4 of sample and laser instrument 3 form a whole with weight arm 1, and blade axle 2 inserts on the bearing 7 in the support case 6, the gravity back of the body 1 can be around the contact point of the blade tip of blade axle 2 and bearing 7 at the action of gravity lower swing, support case 6 is again by revolving axle 12 kinks on pedestal 11 simultaneously, support case 6 can rotate around axle 12, bottom and following all two installed inside at support case 6 have permanent magnet 10, the bottom of weight arm 1 is formed centrally one "T"-shaped 14 in according to the blade pivot being, "T"-shaped 14 part barrier separates a magnet of support case 6 lower inside between two permanent magnets 10 fully.When weight arm 1 pendulum, weight arm 1 cutting magnetic line is produced electric current, short circuit current, produce opposite force, make weight arm 1 be subjected to the magnetic damping effect of permanent magnet 10, stop swinging rapidly, in addition, on blade axle 2 sides one becket 15 is arranged, becket 15 insulate by insulation sleeve 17 with blade axle 2, is connected to a lead 18 on the becket 15 and links to each other with the positive pole of laser instrument 3 luminescent devices, the negative pole of the luminescent device of laser instrument 3 links to each other with weight arm, as negative pole.Be close to a brush 16 on becket 15 cylindricals, brush 16 links to each other with power switch 9 on the support case 6 by lead 19, and power switch 9 links to each other by lead and battery 13 positive poles again, and the negative pole of battery 13 links to each other with support case 6 housings again, as the negative pole of battery.For easy to carry, improve vibration resistance, below the support case, be respectively equipped with detent 8 with two medial surfaces, when not working, can make weight arm 1 fixing by detent 8.

Only need during the utility model operation pedestal 1 is put on the position of any one big effect level, set up 3 1.5v button cells and turn on the power switch 9, make electric current pass to laser instrument 3 and produce laser beam by brush 5, open brake switch release brake 8, under action of gravity and magnetic damping and air-damped common constraint, promptly realize the laser beam level, runing rest case 6, make the Automatic Levelling horizontal laser beam do to horizontally rotate around axle 12, irradiation different target position, illuminated target all can be seen the laser punctation, before laser light source, add promptly to be "+" shape punctation on the illuminated target of zone plate, use for construction or construction quality inspection.

Claims

1, the Automatic Levelling level meter, comprise 1 laser instrument (3), it is characterized in that: laser instrument (3) is mounted in the weight arm (1) that can swing, blade axle (2) and corrector (4) also are housed on weight arm (1), blade axle (2), positive device of sample (4) and laser instrument (3) form a whole with weight arm (1), and blade axle (2) inserts on the interior bearing (7) of support case (6), weight arm (1) can be around the contact point of the blade tip of blade axle (2) and bearing (7) at the action of gravity lower swing, support case (6) is again by revolving axle (12) kink on pedestal (11) simultaneously, support case (6) can rotate around axle (12), bottom and bottom two installed inside at support case (6) have permanent magnet (10), the bottom of weight arm (1) is formed centrally one "T"-shaped (14) in according to the blade pivot being, "T"-shaped (14) part barrier separates a magnet of support case (6) lower inside between two permanent magnets (10) fully;

2, Automatic Levelling level meter as claimed in claim 1, it is characterized in that: one becket (15) is arranged at the blade next to axis, becket (15) insulate by insulation sleeve (17) with blade axle (2), being connected to a lead (18) on the becket (15) links to each other with the positive pole of laser instrument (3) luminescent device, the negative pole of the luminescent device of laser instrument (3) links to each other with weight arm, as negative pole.On becket (15) cylindrical, be close to a brush (16), brush (16) links to each other with power switch (9) on the support case (6) by lead (19), power switch (9) links to each other by lead and battery (13) are anodal again, the negative pole of battery (13) links to each other with support case (6) housing again, as the negative pole of battery;

3, as claim 1 fast Automatic Levelling level meter, it is characterized in that: below the support case and two medial surfaces be respectively equipped with detent (8).