CN2380900Y

CN2380900Y - Level indicator

Info

Publication number: CN2380900Y
Application number: CN 99236106
Authority: CN
Inventors: 钟锡球
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-18
Filing date: 1999-05-18
Publication date: 2000-05-31
Anticipated expiration: 2009-05-18

Abstract

The utility model relates to a level indicator. The inside of a casing is provided with a main support rotationally connected with the casing, and a rotary shaft is basically horizontal. An auxiliary support is rotationally connected with the main support. A rotary shaft between the auxiliary support and the main support is vertical to a rotary shaft between the main support and the casing, and the auxiliary support is connected with a heavy bob with a gravity center lower than rotary shafts. The heavy bob is fixed with a laser tube. When the gravity center of the heavy bob is lowest, the direction of the laser beam is parallel to a horizontal plane. Without adjustment, the utility model can automatically send out horizontal laser beams and bring the convenience to level objects in civil engineering, decoration engineering, etc.

Description

Level indicator

The utility model relates to a kind of level indicator that can be used for engineerings such as civil engineering, finishing.

In civil engineering or fitting-out work, often need find out horizontal datum, for example whether pipe laying, electric wire arrangement or settle decoration bar section etc. on the wall all need measure the object level with horizontal datum.The transparent rectangular flexible pipe that prior art often adopts spirit level or utilization to pour water is measured, but the former can only be in very little scope and the interior use of distance, and the latter uses trouble, needs many people's operations, and not portable.

The purpose of this utility model provides the level indicator that a kind of easy to use, measuring distance is big, be easy to carry about with one.

For achieving the above object, the utility model comprises a housing, be provided with in the housing with housing and rotate the main support that connects, be connected with assistant support with the main support rotation, rotating shaft between housing and the main support is level roughly or just in time, and the rotating shaft between the major and minor support is roughly or just in time perpendicular to the rotating shaft between housing and the main support.Be connected with center of gravity and be lower than the weight of above-mentioned two rotating shafts on assistant support, be installed with the laser tube of emission laser on the weight, the setting angle of laser tube makes that the laser beam of being sent is parallel to surface level when the weight center of gravity is minimum.On housing, also be provided with the transmission region of transmissive laser.Because the weight height of C.G. is lower than each rotating shaft, if therefore housing tilts to make the weight center of gravity to raise, then the weight of Qing Xieing is to major and minor support generation torque, make major and minor support rotate to the weight center of gravity return reduce to minimum, thereby make laser beam keep level all the time.With the laser beam is whether benchmark can measure the object level easily.

The utility model has the advantages that: it is clear to look after and guide in the use, make things convenient for accurately, indicate, and laser range is far away, can use in a big way.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is an inner structure synoptic diagram of the present utility model;

Fig. 2 is the B-B cut-open view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

Referring to Fig. 1, Fig. 2, in the housing 1 of level indicator, be provided with main support 2 and assistant support 3 that mutual rotation connects, can 4 freely rotate around the shaft between the two stands.Main support 2 is circular, rotates with the sidewall of housing 1 through rotating shaft 5 to connect.In the present embodiment, rotating

shaft

4,5 is just in time mutually vertical, and rotating shaft 5 is level just in time, like this can so that the commentaries on classics of the 6 pairs of major and minor supports 2,3 of weight that tilt apart from maximum.Weight 6 connects with assistant support 3, and the height of its center of gravity Q is lower than the height of rotating

shaft

4,5, and the concrete connecting mode of weight 6 and assistant support 3 has multiple, can be articulate, hinged etc., but preferably and assistant support 3 affixed being integral, weight 6 rocks minimum like this.On weight 6, be installed with LASER Discharge Tube 7, (if weight 6 is affixed with assistant support 3, then assistant support 3 is the part of weight in fact) position of power valve makes that the laser beam of being sent is parallel with surface level when weight center of gravity Q is in minimum state (state as shown in fig. 1).Be provided with the zone 8 of transmissive laser on housing 1, this zone can be a through hole, also can be whole transparent housing, as long as can guarantee still can allow when housing 1 tilts to maximum angle laser-transmitting go out, Figure 1 shows that a through hole.Be provided with the drive unit 9 of exciting laser pipe 7 in the housing 1, whole laser instrument can adopt existing wavelength at 630～650nm, the power solid state laser less than 5mW.During use, open the power supply of drive unit 9, laser sees through transmission region 8 and penetrates outside the housings 1, because no matter whether housing 1 tilts, weight 6 all can make major and

minor support

2,3 rotate to make its center of gravity Q be returned to extreme lower position, so laser beam can the maintenance level.Horizontal line that throws on the object around with laser or the each point that is positioned at same surface level are benchmark, and whether promptly mensurable determinand body level.

For the weight 6 that makes swing can settle out as early as possible, can set up electromagnetic damping mechanism.Referring to Fig. 1, weight 6 is fixed with closed conducting ring 10, is fixed with the coil 11 near conducting ring 10 on housing.During use, can make coil 11 energisings produce magnetic field, if weight 6 rocks, the magnetic flux that then passes conducting ring 10 constantly changes, and produces eddy current in the conducting ring 10, and magnetic field hinders the swing of conducting ring 10 to the acting force of eddy current, thereby weight 6 is settled out very soon.After weight 6 is stablized, can disconnect the power supply of coil 11.

For making the utility model have the function of tolerance angle concurrently, can be further improved the utility model.Referring to Fig. 1,3, housing 1 is divided into the pedestal 1a of lower floor that mutual rotation connects and the upper strata 1b two parts of turning, and main support 2 connects with turning.Be provided with the scale 1c that measures the 1b anglec of rotation of turning in pedestal 1a.During use, pedestal 1a maintains static, and the 1b that turns promptly can obtain the corner of 1b of turning from scale 1c, thereby obtains 2 angles with respect to the level indicator position that laser is throwed before and after the 1b that turns rotates.

For making the utility model have the function in indication orientation concurrently, referring to Fig. 1,3, be provided with compass 12 in housing 1, according to the indication of compass, cooperate the direction of laser beam projection, can obtain the orientation of the object that shone.This function shows convenient especially for the occasion of being particular about installation position.

Claims

1, a kind of level indicator, comprise a housing (1), it is characterized in that: be provided with in the housing (1) with housing and rotate the main support (2) that connects, be connected with assistant support (3) with main support (2) rotation, rotating shaft (5) between housing (1) and the main support (2) is level roughly or just in time, main, assistant support (2), (3) rotating shaft between (4) is roughly or just in time perpendicular to the rotating shaft (5) between housing (1) and the main support (2), on assistant support (3), be connected with center of gravity (Q) and be lower than above-mentioned two rotating shafts (4), (5) weight (6), be installed with the laser tube (7) of emission laser on the weight (6), the setting angle of laser tube (7) makes when the weight center of gravity is minimum, the laser beam of being sent is parallel to surface level, also is provided with the transmission region (8) of transmissive laser on housing (1).

2, level indicator as claimed in claim 1 is characterized in that: weight (6) is fixed with closed conducting ring (10), is fixed with the coil (11) near conducting ring (10) on housing (1).

3, level indicator as claimed in claim 1 or 2, it is characterized in that: housing (1) is divided into lower floor's pedestal (1a) that mutual rotation connects and upper strata (1b) two parts of turning, main support (2) connects with turn (1b), is provided with the scale (1c) of measuring (1b) anglec of rotation of turning in pedestal (1a).

4, level indicator as claimed in claim 1 or 2 is characterized in that housing (1) is provided with compass (12).