CN204575080U - A kind of vertical line artificial observation sighting device - Google Patents

Abstract

The utility model discloses a kind of vertical line artificial observation sighting device, belong to safety monitoring technical field of tools, comprise steel ruler a, steel ruler b, steel ruler c, steel ruler d, base plate and vertical line body, described steel ruler a, steel ruler b, steel ruler c, steel ruler d are installed on edge, base plate each limit successively, and steel ruler a, steel ruler b, steel ruler c, steel ruler d are equipped with active cursor; Base plate center is provided with center pit, and base plate one jiao is provided with a thin vertical masonry joint and is communicated with center pit, and vertical line body is arranged in center pit.The technical program is by adopting the base plate configuration of square or rectangular, eliminate the step that in coordinate calculating, angle and length convert, changed in the opposite direction by the scale of the steel ruler be mounted opposite, during aiming, the error formed in relative direction offsets, be slidably connected by steel ball between active cursor and steel ruler, vernier is adjusted and finely tunes all more smooth and accurate, thus the error of reading and calculating is reduced, the data drawn are more accurate.

Description

A kind of vertical line artificial observation sighting device

Technical field

The utility model belongs to safety monitoring technical field of tools, relates to the Hydraulic and Hydro-Power Engineering dam safety monitoring technology of a kind of horizontal shift for artificial observation dam and amount of deflection, especially relates to a kind of vertical line artificial observation sighting device.

Background technology

At present by arranging vertical line and installing supporting plumb line coordinator to carry out the technology of the horizontal shift of automatic Observation dam and amount of deflection comparatively ripe, its observed result has higher degree of accuracy and stability.But because plumb line coordinator is powered, the impact of the factors such as environment and instrument self permanance, be difficult to the continuity ensureing observation, simultaneously in order to rationality and the accuracy of inspection automation observed result, usually a set of artificial observation alignment clamp will be set in addition, the continuity of observation can be ensured on the one hand by artificial observation when plumb line coordinator cannot normally work, on the other hand also can as the comparison measure of automatic observation, thus ensure long-term accuracy and the continuity of horizontal shift and deflection observation data, for the long-term safety stable operation of dam provides the effective firsthand data.

Existing alignment clamp is all the principles using sight alignment, namely requires that observation personnel are when seeing that by sight hole vertical line just blocks target pin needle point, reads steel ruler and vernier reading, to ensure the accuracy of observation data.Current manual observes alignment clamp mainly be divided into two kinds according to its base plate configuration, and a kind of base plate is roughly isosceles triangle, installs a steel ruler with vernier respectively at the left and right side of isosceles triangle; A kind of base plate is roughly semicircle, installs a steel ruler with vernier respectively at the left and right side of arc-shaped edges.The principle of work of these two kinds of alignment clamps is substantially the same, all aim at vertical line and a left side (right side) target pin by the sight hole on left (right side) steel ruler vernier simultaneously, make sight hole, vertical line, a left side (right side) target pin on one wire, when being seen that by sight hole vertical line just blocks target pin needle point, to read on steel ruler reading on reading and vernier, two readings are added the observation data obtaining a left side (right side) chi, repeated measures like this 3 times, obtains its average and charges to regulation form.Because the physical dimension of alignment clamp base plate, the installation site of target pin are all fixing, the average therefore relying on observation to obtain is calculated by corresponding geometry again, can obtain the X of last vertical line, Y-coordinate.

The defect of this structure is: on the one hand, because sight hole, vertical line, target pin needle point are all less, in practical situations both, vernier directly contacts with steel ruler, the friction resistance slided is comparatively large, and vernier is not generally with fine adjustment function, causes when carrying out aiming operation, can only stir vernier by the sensation of operating personnel and experience hand, the error therefore observed is comparatively large and lose time; On the other hand, the data read by alignment clamp will calculate X, the Y-coordinate that just can obtain vertical line through corresponding geometry, and in the process computation process of observation data, not only need repeatedly to use trigonometric function to carry out the calculating of angle and length, the inevitable precision problem that there is data accept and reject in conversion, and in computing formula, too rely on the fixing several dimensional parameters of alignment clamp itself, therefore require high to the manufacture craft of alignment clamp, its manufacturing cost is higher, the maintenance difficulty in later stage.

Utility model content

Exist in practical operation for existing vertical line alignment clamp and aim at the problems such as difficulty, reading accuracy is poor, consuming time, computing method are numerous and diverse, computational accuracy is poor, manufacture craft is difficult, the utility model is not when increasing manpower and cost, a kind of vertical line artificial observation alignment clamp being more simple and easy to use, precision is high, computing method are simple and clear is provided, thus improves efficiency and the quality of work.

The utility model is achieved by following technical solution.

A kind of vertical line artificial observation sighting device, comprise steel ruler a, steel ruler b, steel ruler c, steel ruler d, base plate and vertical line body, described steel ruler a, steel ruler b, steel ruler c, steel ruler d are installed on edge, base plate each limit successively, and steel ruler a, steel ruler b, steel ruler c, steel ruler d are equipped with active cursor; Described base plate center is provided with center pit, and base plate one jiao is provided with a thin vertical masonry joint and is communicated with center pit, and described vertical line body is arranged in center pit.

Described base plate configuration is square or rectangular, and material is stainless steel; Described center pit is circular hole, and the seam of described thin vertical masonry joint is wider than the diameter of section of vertical line body.

Steel ruler a, the steel ruler b at described active cursor and its place, to be all slidably connected by steel ball between steel ruler c, steel ruler d; Described active cursor has sight hole, in sight hole, is provided with the enlarging lens of band cross-graduation silk.

The beneficial effects of the utility model are:

A kind of vertical line artificial observation sighting device described in the utility model has following technique effect:

1, base plate configuration of the present utility model is square or rectangular, therefore there is not the conversion computational problem between angle and length when coordinate calculates, and avoiding data accept and reject in conversion process affects the problem of precision.

2, the utility model installs four identical steel rulers clockwise at base plate four sides, the variation tendency of the observed reading of two steel rulers of two therefore relative sides is just in time contrary, thus can by positive and negative reading check support mutually after take the mean and reduce observational error, improve computational accuracy.

3, adopt the little steel ball of stainless steel to be slidably connected between vernier of the present invention and steel ruler, therefore the left and right activity more aspect of vernier, be easy to fine setting, reading accuracy is higher.

4, the sight hole on vernier of the present invention with cross-graduation silk enlarging lens, be easier to aim at, therefore reading accuracy high, expend time in short.

5, the utility model does not need the physical dimension parameter of base plate self in the calculating of coordinate, and therefore base plate is easier to processing, and cost of manufacture is low.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is vertical view of the present utility model;

Fig. 3 is the structural representation be connected between active cursor with steel ruler in the utility model;

Fig. 4 is the structural representation of sight hole on active cursor in the utility model;

The coordinate system structural representation that Fig. 5 sets up when being and calculating the change of vertical line body position on base plate.

In figure: 1-steel ruler a, 2-steel ruler b, 3-steel ruler c, 4-steel ruler d, 5-base plate, the thin vertical masonry joint of 6-, 7-center pit, 8-vertical line body, 9-active cursor, 901-sight hole, 10-steel ball.

Embodiment

The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of vertical line artificial observation sighting device described in the utility model, comprise steel ruler a1, steel ruler b2, steel ruler c3, steel ruler d4, base plate 5 and vertical line body 8, described steel ruler a1, steel ruler b2, steel ruler c3, steel ruler d4 are installed on edge, base plate 5 each limit successively clockwise, and steel ruler a1, steel ruler b2, steel ruler c3, steel ruler d4 are equipped with active cursor 9; Steel ruler a1, the steel ruler b2 at described active cursor 9 and its place, to be all slidably connected by steel ball 10 between steel ruler c3, steel ruler d4, active cursor 9 to have sight hole 901, in sight hole 901, be provided with the enlarging lens of band cross-graduation silk; Described base plate 5 shape is square or rectangular, material is stainless steel, base plate 5 center is provided with circular center pit 7, any one jiao of base plate 5 is provided with a thin vertical masonry joint 6 and is communicated with center pit 7, the seam of described thin vertical masonry joint 6 is wider than the diameter of section of vertical line body 8, to ensure that vertical line body 8 freely can pass through from thin vertical masonry joint 6; Described vertical line body 8 is arranged in center pit 7.

During work, by vertical line line body 8 by being placed in center pit 7 after thin vertical masonry joint 6, ensure that vertical line line body 8 is positioned at the center of circular hole 7 as far as possible, move the active cursor 9 on steel ruler a1, steel ruler b2, steel ruler c3, steel ruler d4 successively and aim at vertical line body 8 by sight hole 901, when on magnifier in sight hole 901, the vertical hair of cross-graduation silk overlaps with vertical line body 8, when horizontal hair is vertical with vertical line body 8, read the reading on steel ruler a1, the steel ruler b2 at active cursor 9 place, steel ruler c3, steel ruler d4, and record respectively, every chi at least reads three secondary data.

Embodiment

Suppose to set up coordinate system as shown in Figure 5, steel ruler range is 0 ~ L (mm), then, when vertical line moves to B position by A position, corresponding displacement DX, DY computing method are as follows:

When vertical line line body is in A position, according to aforesaid operations step, aim at vertical line body 8 by the sight hole 901 on the active cursor 9 on steel ruler a1, the reading X of continuous 3 reading steel ruler a1 _aa1, X _aa2, X _aa3, ask for average vertical line body 8 is aimed at, the reading X of continuous 3 reading steel ruler c3 by the sight hole 901 on the active cursor 9 on steel ruler c3 _ac1, X _ac2, X _ac3, ask for average vertical line body 8 is aimed at, the reading Y of continuous 3 reading steel ruler b2 by the sight hole 901 on the active cursor 9 on steel ruler b2 _ab1, Y _ab2, Y _ab3, ask for average adopt in the same way, ask for average

When vertical line line body is in B position, adopt above-mentioned steps equally, respectively reading ask for average with

Because steel ruler a1, steel ruler b2, steel ruler c3, steel ruler d4 install successively according to clockwise direction, two so relative bar rules, namely steel ruler a1 is contrary with the reading variation tendency of steel ruler c3, steel ruler b2 and steel ruler d4, therefore finally obtains displacement computing formula to be:

$\mathrm{DX}=[({\stackrel{\‾}{X}}_{\mathrm{Ba}}-{\stackrel{\‾}{X}}_{\mathrm{Aa}})-({\stackrel{\‾}{X}}_{\mathrm{Bc}}-{\stackrel{\‾}{X}}_{\mathrm{Ac}})]/2$

$\mathrm{DY}=[({\stackrel{\‾}{X}}_{\mathrm{Bb}}-{\stackrel{\‾}{X}}_{\mathrm{Ab}})-({\stackrel{\‾}{X}}_{\mathrm{Bd}}-{\stackrel{\‾}{X}}_{\mathrm{Ad}})]/2$

Claims (7)

1. a vertical line artificial observation sighting device, comprise steel ruler a (1), steel ruler b (2), steel ruler c (3), steel ruler d (4), base plate (5) and vertical line body (8), it is characterized in that: described steel ruler a (1), steel ruler b (2), steel ruler c (3), steel ruler d (4) are installed on edge, base plate (5) each limit successively, and steel ruler a (1), steel ruler b (2), steel ruler c (3), steel ruler d (4) are equipped with active cursor (9); Described base plate (5) center is provided with center pit (7), base plate (5) one jiaos is provided with a thin vertical masonry joint (6) and is communicated with center pit (7), and described vertical line body (8) is arranged in center pit (7).

2. a kind of vertical line artificial observation sighting device according to claim 1, is characterized in that: described base plate (5) shape is square or rectangular.

3. a kind of vertical line artificial observation sighting device according to claim 1, is characterized in that: steel ruler a (1), the steel ruler b (2) at described active cursor (9) and its place, be all slidably connected by steel ball (10) between steel ruler c (3), steel ruler d (4).

4. a kind of vertical line artificial observation sighting device according to claim 1, is characterized in that: described active cursor (9) has sight hole (901), is provided with the enlarging lens of band cross-graduation silk in sight hole (901).

5. a kind of vertical line artificial observation sighting device according to claim 1, is characterized in that: the seam of described thin vertical masonry joint (6) is wider than the diameter of section of vertical line body (8).

6. a kind of vertical line artificial observation sighting device according to claim 1, is characterized in that: the material of described base plate (5) is stainless steel.

7. a kind of vertical line artificial observation sighting device according to claim 1, is characterized in that: described center pit (7) is circular hole.