CN2096734U

CN2096734U - Handle erecting two-use plumb surveying instrument

Info

Publication number: CN2096734U
Application number: CN 91217511
Authority: CN
Inventors: 郭树森
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-22
Filing date: 1991-07-22
Publication date: 1992-02-19

Abstract

The utility model discloses a handle erecting two-use plumb surveying instrument. The upper part and one side of a lens barrel of the surveying instrument are provided with a connected cavity which is provided with a plumb surveying instrument, and the lower part and the other side is provided with a concave table and a connected cavity which are provided with a fine survey plumb surveying instrument. The utility model not only improves the precision problem of surveying and calculating the eave in the photogrammetric mapping with large scale of the mapping department but also can be extensively used in the plumb survey of the field of other engineering survey. Using the handle plumb surveying instrument, the maximum errors of the target vertical projection points at the 20 meters and the 50 meters high-altitude are respectively (+/-) 4 mm and (+/-) 11 mm. Using the fine survey plumb surveying instrument for stand, the maximum error of the target vertical projection points at the 150 meters high-altitude is (+/-) 3.5 mm.

Description

Handle erecting two-use plumb surveying instrument

The utility model relates to a kind of surveying instrument, particularly a kind ofly hands, puts the dual-purpose vertical measuring instrument of frame.

China generally be to adopt surveyor's table to carry out field survey, but this way speed is slow in cadastral survey work at present, and labour intensity is big.Another kind of way is to adopt aeroplane photography large scale one-tenth figure, and the area imaging that makes City Building and eaves thereof is carried out industry one-tenth figure work in the photogrammetric measurement thereafter on the aeroplane photography egative film.But according to the test to 1:500 engineer's scale aerial topographic map, the error statistics after the analysis showed that after testing, because inferior 1-2 times of exceeding the limit difference of culture point planimetric position precision.For improving the precision of culture point planimetric position, can only rely on open-air the accent to measure when painting on the spot.Can only visual estimation when meeting high-rise in the measurement, but that visual estimation lacks is scientific, and precision is too low.For solving the problems referred to above in the cadastral survey, a kind of simple and easy eaves measurer is disclosed among the Chinese patent CN2039409U, the structure of whole measurer has loam cake to become box-like with following.Form by catoptron, aiming core, level and steel tape etc. in the box.Open loam cake, wherein sight benchmark by what groove and aiming core were formed on the catoptron, and when deciding the horizontality of mirror surface, mobile measurer that the verandah edge of eaves and the groove on the minute surface and accurate core are coincided by level, at this moment the groove on the catoptron can be measured to the distance of foundation.But because the easy eaves measurer of tube only depends on the refraction of catoptron realization to object, after the height of measuring thing surpasses 15 meters, the atmosphere refractive power, there is not concentrating device, the divergence of beam bending, this measurer target sharpness is not enough, and this measurer micro-multiplying arrangement of not looking in the distance has in addition limited the imaging effect of its high-altitude distance.Make its vertical projection point that can not directly record aerial target position, in addition, this measurer is only applicable to the measurement of buildings eaves.

The purpose of this utility model is to provide a kind of hand-holdable measurement pedal line, available again foot rest accurate measurement pedal line, measuring accuracy height, the vertical measuring instrument that purposes is wide.

The purpose of this utility model is finished by following manner:

A measuring instrument objective tube top and a side are provided with the cavity of connection, and the vertical measurement mechanism that the band right-angle array turns to prism is housed in the cavity, and accurate measurement vertical measurement mechanism is equipped with in bottom and the cavity that opposite side is provided with concave station and is communicated with.

Above-mentioned vertical measurement mechanism is installed in objective tube top respectively and reaches in the eyepiece stalk that intersects with objective tube; the object lens cover glass is housed in the objective tube from top to bottom; two separation object lens, focus control, Guang Lan, right-angle array turn to prism, fixedly lenslet, garden level; between fixing lenslet and garden level, also be provided with the light hole that is communicated with the object lens barrel; reflective mirror and cover glass are equipped with in the light hole outer end, and cross-graduation plate, symmetrical ocular group are equipped with successively in the self intersection place in the eyepiece stalk.

Above-mentioned right-angle array turns to prism to be made up of two right-angle prisms that differ in size, little prism is fixed on a jiao of big prism hypotenuse bottom, right-angle side of little prism overlaps with the right-angle side of big prism, and another right-angle side is corresponding with fixing lenslet and above lenslet.

Be equipped with from top to bottom in the above-mentioned objective tube lower axis cavity and turn to prism, cover glass, cannulated threaded to connect securing member; lens, four-bladed vane, symmetrical ocular group are equipped with successively in the self intersection place in the eyepiece cavity that intersects with the axis cavity, are fixed with the pipe level on the concave station of the outside, objective tube bottom.

Above-mentioned objective tube lower end screw thread is connected with the base that tape measure is housed and has center pit.

When measuring with the vertical measurement mechanism is hand-held, ocular focusing at first, make crosshair clear, open reflective mirror and see that simultaneously the lower left corner bubble position of crosshair resembles, measuring instrument is placed the general location of eaves projection line, aim at the mark, object lens move instrument to light, the vertical silk of target and crosshair is overlapped, see again whether bubble is placed in the middle, make crosshair overlap target, bubble is placed in the middle, at this moment the contact on supercentral Metallic rod of measuring instrument base and ground is the vertical projection point of eaves, measures the distance of subpoint to foundations then.Also can squat and record without the Metallic rod hand-held measuring appliance.When needing directional ray that sounding lead directly makes progress, the engineering survey construction lofting can be placed in the vertical measuring instrument center of buildings, as water tower, chimney, launching tower, hyperbolic curve heat radiation tower bottom center, adopt foot rest fixation measuring instrument accurate measurement vertical measurement mechanism, the plumb aligner top drives the device that can do lifting with windlass, makes a telescopic ruler below device.When the crosshair intersection point of measuring overlapped with diameter chi center, bubble was placed in the middle, illustrates that bottom centre and diameter chi center on a pedal line, provide accurate setting-out size to the workmen.In the deformation measurement when the inclination of need surveying high-lager building, pitch angle, measuring instrument can be placed buildings bottom near, object lens are sighted the top, when the point at the vertical silk of measuring instrument crosshair intersection point and top or sideline overlap, bubble is placed in the middle, illustrates that the point at top or sideline and measuring instrument bottom centre contact are on same pedal line.Thereby can calculate the angle of inclination.

The utility model has hand-held vertical measurement mechanism that two covers can select for use according to the measuring accuracy needs and with the fixing accurate measurement vertical device of tripod, but makes vertical measuring instrument a multi-purpose instrument, is adapted to the vertical measurement of various accuracy requirements.Because the utility model adopts in the vertical measurement mechanism structure that right-angle array turns to prism is installed above the level of garden, make resembling of garden level introduce the visual field, hold the fair purpose of measuring high-rise eaves and engineering survey construction lofting pedal line that just can reach of self-regulated with hand.Solve Mapping departments when carrying out large scale aerial survey one-tenth figure, can accurately measure the problem of calculating eaves, top cover eaves.When the garden level of selecting for use be 8 '/during 2mm, the vertical projection point maximum planes mean square error of a point of 50 meters high-altitude targets is ± 17mm; The eaves vertical projection point maximum error in 20 meter 7 floor room is ± 4.5mm.When the garden level of selecting for use be 5 '/during the garden level of 2mm, 50 meters high-altitude target vertical mean square error of a points are ± 11mm; 20 meters high-altitude target vertical projection mean square error of a points are ± 4mm." during the pipe level of/2mm, 100 meters high-altitude target vertical projection mean square error of a points are ± 2mm that the target vertical projection mean square error of a point in 150 meters high-altitudes is ± 3mm when the pipe level of accurate measurement vertical measurement mechanism selects 20 for use.Above measuring accuracy is than the measurer of Chinese patent CN2039409U, only for ± 10 millimeters measuring accuracy significant raising arranged 15 meters its measurement accuracy of high-altitude.The utility model is not only in light weight, volume is little, easy to use, improve mapping precision greatly, and owing to can measure 150 meters, 200 meters high-altitudes, engineering survey construction lofting, high-lager building and deformation observation are provided convenience, and are a kind of broad-spectrum vertical measuring instruments.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is a contour structures synoptic diagram of the present utility model;

Fig. 2 is a complete section structural representation of the present utility model.

As described in Figure 1, objective tube (18) is the garden column, and the eyepiece stalk that intersects with objective tube (18) is arranged on objective tube (18).In the light hole outer end of objective tube barrel reflective mirror (15) and cover glass are installed.Have a recessed platform to be fixed with pipe level (10) on right side, objective tube bottom, pipe level (10) below is provided with eyepiece.Objective tube (18) lower end can connect the base (17) that has center pit with securing member.

As shown in Figure 2, the object lens cover glass (1) of vertical measurement mechanism all is fixed in the garden cover less than the objective tube upper end diameter with two object lens (2) that separate, and the garden cover can be threaded in the objective tube upper end.Focusing lens (3) is fixed on two object lens (2) belows of separating with focus control.The focusing lens below is equipped with right-angle array and turns to prism (5).Right-angle array turns to elastic washer of top placement of prism (5), is fixed with the light hurdle (4) of band center pit on the packing ring.Right-angle array turns to prism (5) to be made up of two right-angle prisms that differ in size, little prism is bonded in a jiao of big prism hypotenuse bottom, a right-angle side of little prism overlaps with a right-angle side of big prism, another right-angle side is corresponding with fixing lenslet (8) and in the top of lenslet (8), and the below of lenslet (8) is fixed with garden level (9).In the eyepiece stalk that intersects with objective tube (18), be fixed with cross-graduation plate (6) successively, (7) one of symmetrical oculars be fixed on eyepiece stalk in put, one is fixed on the outer of eyepiece stalk and puts, the inside and outside cover of eyepiece stalk is to be threaded.Accurate measurement vertical measurement mechanism is installed in the cavity that the objective tube bottom reaches with the right side is communicated with.Be fixed with in objective tube lower axis and eyepiece cavity intersection and turn to prism (14); be fixed with cover glass (16) in the below that turns to prism (14), the intersection is fixed with lens (11), four-bladed vane (12) and symmetrical ocular (13) successively in the eyepiece cavity.Can the be threaded hollow fastener of light-permeable of objective tube bottom center hole.Base (17) is connected the objective tube lower end by securing member, and base (17) is provided with screw thread to connect the telescopic metal bar that contacts to earth in central hole, in the base tape measure can be installed, and base one side has the open slot that tape measure is stretched.

Claims

1, a kind ofly hands, puts the dual-purpose vertical measuring instrument of frame, comprise level, it is characterized in that measuring instrument objective tube (a 18) top and a side are provided with the cavity of connection, the vertical measurement mechanism that the band right-angle array turns to prism (5) is housed in the cavity, accurate measurement vertical measurement mechanism is equipped with in bottom and the cavity that opposite side is provided with concave station and is communicated with.

2; as claimed in claim 1 hand-held; put the dual-purpose vertical measuring instrument of frame; it is characterized in that the vertical measurement mechanism is installed in objective tube top respectively and reaches in the eyepiece stalk that intersects with objective tube; object lens cover glass (1) is housed in the objective tube from top to bottom; two separation object lens (2); focus control (3); light hurdle (4); right-angle array turns to prism (5); fixing lenslet (8); garden level (9); between fixing lenslet (8) and garden level (9), also be provided with the light hole that is communicated with the objective tube barrel; reflective mirror (15) is equipped with in the light hole outer end, and cross-graduation plate (6) is equipped with at the self intersection place successively in the eyepiece stalk; symmetrical ocular group (7).

3, as claimed in claim 1 or 2ly hand, put the dual-purpose vertical measuring instrument of frame, it is characterized in that right-angle array turns to prism (5) to be made up of two right-angle prisms that differ in size, little prism is fixed on a jiao of big prism hypotenuse bottom, right-angle side of little prism overlaps with the right-angle side of big prism, and another right-angle side is corresponding with fixing lenslet (8) and in the top of lenslet (8).

4, as claimed in claim 1 or 2ly hand, put the dual-purpose vertical measuring instrument of frame; it is characterized in that objective tube (18) bottom; be equipped with from top to bottom in the axis cavity and turn to prism (14), cover glass (16); lens (11), four-bladed vane (12), symmetrical ocular group (13) are equipped with successively in the self intersection place in the eyepiece cavity that intersects with the axis cavity, are fixed with pipe level (10) on the concave station of the outside, objective tube (18) bottom.

5, as claimed in claim 1ly hand, put the dual-purpose vertical measuring instrument of frame, it is characterized in that objective tube (18) lower end screw thread is connected with the base (17) that tape measure is housed and has center pit.