CN2575609Y

CN2575609Y - Closed ballistic plate flowmeter

Info

Publication number: CN2575609Y
Application number: CN 02260935
Authority: CN
Inventors: 王芳林; 沈建明
Original assignee: YUANHENG LOGISTIC AUTOMATION CO Ltd KUNMING; YUANHENG LOGISTIC AUTOMATION C
Current assignee: YUANHENG LOGISTIC AUTOMATION CO Ltd KUNMING; YUANHENG LOGISTIC AUTOMATION C
Priority date: 2002-10-23
Filing date: 2002-10-23
Publication date: 2003-09-24
Anticipated expiration: 2012-10-23

Abstract

The utility model relates to the technical field of a multi-purpose level bar which is designed for measuring an included angle with high precision. The utility model comprises a level bar body which is marked with length dimensions, wherein, the level bar body is divided into a main level bar body and an auxiliary level bar body. The middle of the auxiliary level bar body is hollow, and can be held with the main level bar body. One end of each of the main level bar body and the auxiliary level bar body is respectively fixed by a rotating shaft mobile type. The utility model is characterized in that a synchronous driving wheel is fixed on the rotating shaft in the main level bar body, and a synchronous driven wheel fixed at the middle part of the main level bar body is connected and driven by the synchronous driving wheel through a synchronous belt. A shaft end of the synchronous driven wheel is connected with a dial shaft core which is fixed on a base arranged at a lateral face of the main level bar body and is used for indicating an angle of an included angle of the main level bar body and the auxiliary level bar body. The utility model has the advantages of simple and reasonable structure, avoidance of system error, easy production and assembly, etc. The utility model is suitable for popularization and use on the multi-purpose level bar.

Description

Multifunction level meter

Technical field

The utility model relates to the especially technical field of multifunction level meter of a kind of survey instrument.

Background technology

Development along with society, construction work is had higher requirement, more owing to the bigger industry characteristic of building operation flowability, a kind of multi-functional, easy to carry, adaptable product of customer requirement occurs, and general traditional multifunction level meter has been difficult to satisfy user's demand.It as the patent No. 00203250.3 Chinese patent " comprehensive surveyor's staff ", it includes the chi body, base and airtight container thereof, airtight container is transparent circle and lacks shape, be fixed on the base and embed on the chi body, adorn liquid in the airtight container and stay minute bubbles, there is a centre mark at the center, outside, the inclined-plane subscript angle index of base indent, can measure the horizontal sextant angle of any oblique line, and once measure surface level, simple in structure, easy and simple to handle, cost is low, but also has some shortcomings, as the intuitive that takes measurement of an angle is poor, need with automatic vertical needle and angle scale cooperates or bubble and angle index cooperate and could use, function is also fewer, generally can only take measurement of an angle, levelness, verticality, length etc., and can only measure small distance scope angle and length, on actual use occasion such as heavy construction and machine, can't measure more accurate angle and orientation, the lines of the various long distances of perhaps drawing, these aspects need us to do further improvement.Also have the inventor to design a kind of new multifunction level meter, see that the patent No. is 01239440.8 " multifunction level meter ", it includes surveyor's staff chi body, air level, steel tape, it is characterized in that described surveyor's staff chi body is divided into main scale body and secondary chi body, in the middle of the secondary chi body is empty, can hold the main scale body hide into, and at a end away from steel tape, secondary chi body and main scale body adopt movable being connected and fixed of axle, in the main scale body, this axle cogs and connects the drive synchronous pulley by gear drive, have between synchronous pulley and the idle pulley angle angle between main scale body and the secondary chi body is converted into the belt that numeral shows, on the main scale body, have display window accordingly for the reading angular numeral.It has rational in infrastructure, easy to use, advantages such as function is many, but owing to eliminate the gear play by cup spring between its synchronous pulley and the main shaft, also there are some problems, long as service time one, spring can lose some elasticity, make the reseting performance of gear undesirable, can not reset well, can cause systematic error, structure needs gear transmission structure, structure still owes succinctly can do further improvement, with simplified structure, reduce cost, and making things convenient for its production and use, this surveyor's staff also is not suitable for measuring the angle and the length of long distance in addition, also needs to do similar improvement.

Summary of the invention

Primary technical matters to be solved in the utility model is to provide at prior art that a kind of structure is succinct more rationally, error is few, the multifunction level meter of easy production and assembly.

Another technical matters to be solved in the utility model provides a kind of multifunction level meter, and the length that it is fit to measure large-sized object such as buildings or machine is apart from angle and orientation, and the various long-distance line bars that can draw easily.

The technical scheme that the above-mentioned primary technical matters that solves the utility model adopts is: this kind multifunction level meter, it comprises the chi body of marking length dimension, the chi body is divided into main scale body and secondary chi body, in the middle of the secondary chi body is empty, can hold the main scale body hide into, and secondary chi body and main scale body one end adopt, and rotating shaft is movable to be fixed up, it is characterized in that in the main scale body, being fixed with in this rotating shaft synchronous driving wheel, synchronously driving wheel connects by synchronous band and drives the synchronous engaged wheel that is fixed on main scale body middle part, synchronously the axle head of engaged wheel be fixed on the indication main scale body in the main scale body side surface gauge stand and the dial plate of secondary chi body angle angle and link together.

As technological improvement, on gauge stand, be fixed with transparent table lid, table covers the benchmark groove of indication reading.And can above gauge stand, open screw hole, be screwed with the fine setting holding screw then and lock this table lid.

Further improvement as technology, above-mentioned synchronous band can be equipped with strainer, this strainer is that the back of gauge stand has the tensioning screw holder up and down, go up and crossed tensioning screw with nut, one end of tensioning screw is connected on the tensioning frame of gauge stand lateral location, and tensioning frame is fixed with stretching pulley up and down, and stretching pulley is pasting tensioning by middle one side and is being with synchronously, the end in addition of tensioning screw is installed with spring washer, is screwed with nut then and fixes this spring.

The utility model solves the technical scheme that above-mentioned another technical matters adopted: on the technique scheme basis, in secondary chi end of body, be fixed with laser bench, the inboard face of laser bench is fixedly connected with laser head by a plurality of set screw, have through hole at the laser head laser bench, this through hole is pegged graft and is fixed with prism, lateral surface at laser bench is fixed with power switch simultaneously, power switch is connected on the laser head circuit, the laser bench back also is snapped with battery tray, is equipped with the power supply that battery is done laser head in the battery tray.

As technological improvement, above-mentioned a plurality of set screw numbers are three, are circumference and are symmetrically distributed, and be lined with elastic washer between laser head and the laser bench.

Compared with prior art, advantage of the present utility model is: 1, precision height, and avoid adopting spring to eliminate the gear play, so long-time the use can not caused systematic error because of camber of spring yet; 2, simple for structure reasonable, do not need special gear rotation actuation mechanism, both avoided the error generation, simplify the structure again, reduce drive disk assembly, the easier production of chi tool is installed, and reduce production costs; 3, easy to use, on dial plate, can directly read the angle angle; 4, increased laser head in the end of secondary chi body, make surveyor's staff can measure the angle or the installation position of building or machine equipment easily, also can be easily make the lines of the long distance that is used for drawing such as level line, horizontal line or the like for the workmen, function is many; 5, adopt 4: 1 ratios, make the custom of angle demonstration near the user of service, dial plate also marks scale easily, makes things convenient for it to produce and uses; 6, increase micro-adjusting mechanism as fine setting holding screw, strainer, set screw etc., can carry out trace to regulate, improved the precision of measuring.

Description of drawings

The structure cut-open view of Fig. 1 multifunction level meter;

The front view of Fig. 2 multifunction level meter;

The partial structurtes amplification view of Fig. 3 multifunction level meter;

The partial structurtes amplification view of Fig. 4 multifunction level meter;

The synchronous band drive mechanism front view of Fig. 5 multifunction level meter;

Fig. 6 is that the B-B of Fig. 5 is to cut-open view;

Fig. 7 is that the C-C of Fig. 5 is to cut-open view;

The structural drawing of Fig. 8 laser head.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model is described in further detail.

As Fig. 1,2,4 illustrate, this multifunction level meter includes surveyor's staff chi body, air level, surveyor's staff chi body is equipped with air level, air level is divided into horizontal levelling bubble 3 and vertical air level 2 again, outside surface at the chi body is carved with the length scale, to be convenient for measuring length, these are similar as traditional surveyor's staff, here describe in detail with regard to no longer launching, its special character is surveyor's staff chi body is divided into main scale body 1 and secondary chi body 12, main scale body 1 is the tubing of hollow, the cross section is rectangular, secondary chi body 12 is made up of top board and both sides side plate, the centre is empty, can hold main scale body 1, and allow it hide into, at one end, secondary chi body and main scale body adopt rotating shaft 10 to be connected and fixed movably, and its structure is that rotating shaft 10 place's surface of contact are lined with friction disc between main scale body 1 and the secondary chi body 12, pass with rotating shaft 10, this rotating shaft one end becomes fixed head simultaneously, other end system external thread, and a knob 30 has been threaded, when screwing knob, can lock the angle angle of main scale body and secondary chi body, be convenient for measuring, maybe main scale body and secondary chi body can be amounted to, be convenient for carrying and when unclamping knob, be convenient to adjust angle.In main scale body 1, fix a synchronous driving wheel 11 with pin 29 in this rotating shaft, and the axle head of rotating shaft 10 and secondary chi body 12 chi shells are screwed.Synchronously the tooth cross section of driving wheel 11 can be rectangle, square, triangle, corrugated or the like, preferentially selects rectangle or square shaped teeth for use, to improve precision and result of use.Synchronously driving wheel 11 is by connecting with 9 synchronously and driving the synchronous engaged wheel 5 that is arranged on main scale body middle part, inward recess is opened in main scale body 1 side accordingly, be screwed gauge stand 4 at this inward recess place then, as Fig. 5,6,7, be fixed with dial plate 23 versatilely by bearing 25 on the gauge stand, dial plate indicates angle index, and the axle head of 23 core through holes of dial plate and synchronous engaged wheel 5 is connected and fixed.In order to prevent dust and to make things convenient for reading, gauge stand 4 upper plug types have been fixed transparent table lid 26, and benchmark groove 24 is engraved in table covers as the datum line of indicating reading, the gauge stand top has screw hole simultaneously, is screwed with this table lid 26 of fine setting holding screw 27 lockings then, and people in use like this, can unclamp fine setting holding screw 27, can finely tune by rotating the dial plate position a little, to eliminate initial error, to improve the precision of measuring.In order to measure and to observe conveniently, also help dial plate marking reading simultaneously, driving wheel 11 is 4: 1 with the diameter ratio of synchronous engaged wheel 5 synchronously, exactly with the angle between main scale body 1 and the secondary chi body 12 when 90 spend, the rotation of secondary chi body 12 just drives rotating shaft 10 and rotates, rotating shaft is rotated the synchronous driving wheel 11 that just drives on this and is rotated, driving wheel 11 rotates to drive and is with 9 actions synchronously synchronously, thereby make synchronous engaged wheel 5 turn to corresponding angle, engaged wheel drives dial plate 23 rotations synchronously, dial plate 23 three-sixth turn one circle just like this, other angle angle and the like.Surveyor's staff is when assembling, on the one hand because the tolerance dimension influence, cause initial error easily, use for a long time on the other hand, synchronous band is deformed, also cause the error of measurement easily, so be with 9 to be equipped with strainer synchronously, and this strainer is adjustable, its structure is that the back of gauge stand 4 is distributed with tensioning screw holder 28 up and down, tensioning screw 21 usefulness nuts 22 are transverse on the tensioning screw holder 28, one end of tensioning screw 21 is connected on the tensioning frame 8 of gauge stand 23 lateral location, and tensioning frame 8 is fixed with stretching pulley 7 up and down, and stretching pulley 7 is pasting tensioning by middle one side and is being with synchronously, the end in addition of tensioning screw 21 is installed with spring washer 6, be screwed with nut 22 then and fix this spring washer,, just can regulate the position of tensioning frame 8 a little like this by adjusting screw(rod) 21, stretching pulley 7 tensionings are with synchronously are in same tensioning state, reduce the error when measuring.As Fig. 1,3,8, secondary chi body is fixed with laser bench 14 in 12 ends, laser bench is to adopt plastic shaping to form, the inboard face of laser bench has been connected and fixed laser head 20 by three set screw 18, and the through hole 17 that laser head 20 is opened at laser bench, this through hole is pegged graft and has been fixed prism 16 simultaneously, lateral surface fixed power source switch 15 at laser bench 14, power switch 15 is connected on the on off state of control laser head 20 on the laser head circuit, laser bench 14 back also are snapped with battery tray 13, battery tray also is that plastic shaping forms, and the whole back that is enclosed within laser bench 14, assembled battery in the battery tray, it is used for doing the power supply of laser head 20, adjusts the position of laser head for convenience when production and assembly, the light beam perpendicularity that it is sent is good, parallel with chi body bottom surface measuring basis, so three set screw 18 are to be circumference to be symmetrically distributed, and be lined with elastic washer 19 between laser head and the laser bench.Main scale body 1 is provided with and is fixed with horizontal levelling bubble 3 and vertical air level 2, and secondary accordingly chi body 12 surfaces have window 31 corresponding to horizontal levelling bubble, vertical air level, dial plate position, observes air level indication situation to make things convenient for the user of service by saturating window.At the end away from rotating shaft, the secondary chi body 12 wherein saturating window of reveal competence air level is designed to hold the open pore of taking 32 for the people, makes things convenient for user of service's both hands to arrest main scale body and secondary chi body, opens then and uses.Chi body material adopts aluminum alloy materials, and it is silvery white, both artistic and practical that surface plastic spraying becomes.

Its principle of work and using method are as follows: in the time will taking measurement of an angle, as long as open main scale body 1 and secondary chi body 12, and adjust horizontal levelling bubble 3 and vertical air level 2 simultaneously, they are mediated, so secondary chi body 12 is opened and is just driven rotating shaft 10 rotations, and rotating shaft 10 rotations just drive synchronous driving wheel 11 rotations, driving wheel 11 is by being with 9 to drive synchronous engaged wheel 5 rotations more synchronously synchronously, because the axle of engaged wheel 5 links together with the axle of dial plate 23 synchronously, dial plate 23 just turns over certain angle like this, this angle by synchronous driving wheel 11 and synchronously the transmission specific energy of engaged wheel 5 converse angle between main scale body and the secondary chi body; In the time will measuring large-sized object such as buildings orientation or angle, because the length of chi body is not enough, laser head 20 on the secondary chi body 12 can only be opened, main scale body 1 is fixed on certain position, revolute pair chi body 12 then, make laser head 20 on the secondary chi body send light and beat precalculated position on buildings, dial plate 23 angle of rotating can be measured buildings angle or orientation like this; And laser head 20 can also be used to picture horizontal line or level line or the like, these usages and principle with traditional be the same, just no longer be repeated in this description here.

Claims

1, a kind of multifunction level meter, it comprises the chi body of marking length dimension, the chi body is divided into main scale body (1) and secondary chi body (12), in the middle of the secondary chi body (12) is empty, can hold main scale body (1) hides, and secondary chi body and main scale body one end adopt movable being fixed up of rotating shaft (10), it is characterized in that in main scale body (1), being fixed with in this rotating shaft synchronous driving wheel (11), synchronously driving wheel (11) connects by band (9) synchronously and drives the synchronous engaged wheel (5) that is fixed on main scale body middle part, synchronously the axle head of engaged wheel (5) and be fixed on indication main scale body in the main scale body side surface gauge stand (4) and the dial plate (23) of secondary chi body angle angle links together.

2, multifunction level meter according to claim 1 is characterized in that being fixed with on the described gauge stand (4) transparent table lid (26), and table covers the benchmark groove (24) of indication reading.

3, multifunction level meter according to claim 1 is characterized in that described gauge stand (4) top has screw hole, is screwed with fine setting holding screw (27) then and locks this table lid (26).

4, multifunction level meter according to claim 1 is characterized in that the axle of described synchronous engaged wheel (5) is fixed on the gauge stand (4) by bearing (25).

5, multifunction level meter according to claim 1, it is characterized in that described synchronous band (9) is equipped with strainer, this strainer is that the back of gauge stand (4) has tensioning screw holder (28) up and down, go up and crossed tensioning screw (21) by nut (22), one end of tensioning screw (21) is connected on the tensioning frame (8) of gauge stand (4) lateral location, tensioning frame (8) is fixed with stretching pulley (7) up and down, stretching pulley (7) is pasting tensioning by middle one side and is being with synchronously, the end in addition of tensioning screw (21) is installed with spring washer (6), is screwed with nut (22) then and fixes this spring washer.

6, multifunction level meter according to claim 1 is characterized in that the described synchronous driving wheel (11) and the diameter ratio of synchronous engaged wheel (5) are 4: 1.

7, multifunction level meter according to claim 1, it is characterized in that locating to be lined with on the surface of contact friction disc in rotating shaft (10) between described main scale body (1) and the secondary chi body (12), this axle one end becomes stiff end simultaneously, another axle head system external thread, the knob that has been threaded (30).

8, multifunction level meter according to claim 1, it is characterized in that being fixed with laser bench (14) in described secondary chi body (12) end, the inboard face of laser bench is fixedly connected with laser head (20) by a plurality of set screw (18), have through hole (17) at laser head laser bench (14), this through hole is pegged graft and is fixed with prism (16), lateral surface at laser bench is fixed with power switch (15) simultaneously, power switch (15) is connected on the laser head circuit, laser bench (14) back also is snapped with battery tray (13), is equipped with the power supply that battery is done laser head (20) in the battery tray.

9, multifunction level meter according to claim 8 is characterized in that described a plurality of set screw (18) number is three, is circumference and is symmetrically distributed, and be lined with elastic washer (19) between laser head (20) and the laser bench (14).

10, multifunction level meter according to claim 1, it is characterized in that last setting of described main scale body (1) is fixed with horizontal levelling bubble (3) and vertical air level (2), secondary accordingly chi body (12) surface has window (31) corresponding to horizontal levelling bubble, vertical air level, dial plate position, simultaneously at the end away from main shaft, a saturating window becomes the confession people and holds the open pore of taking (32) on the secondary chi body.