CN201731852U

CN201731852U - Measuring tool of subway tunnel interval pipeline bracket

Info

Publication number: CN201731852U
Application number: CN201020207532XU
Authority: CN
Inventors: 张永; 王运峰
Original assignee: China Railway 14th Bureau Group Electrification Engineering Co Ltd
Current assignee: Chian Railway Shisiju Group Corporation Tunnel Engineering Co., Ltd.
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2011-02-02
Anticipated expiration: 2020-05-28

Abstract

The utility model discloses a measuring tool of a subway tunnel interval pipeline bracket, which comprises an upright post and a transverse bracket arm, wherein the upright post and the transverse bracket arm are hinged through a connecting shaft; a level ruler and a graphometer are arranged on the transverse bracket arm, and the circle center of the graphometer and the shaft center of the connecting shaft are superposed; an upright post basic line is arranged on the upright post, and a transverse bracket arm basic line is arranged on the transverse bracket arm; the upright post basic line and the transverse bracket arm basic line pass through the circle center of the graphometer; and the transverse bracket arm basic line and the scale line of two degrees for the graphometer are superposed. The measuring tool is a special tool for leading the measuring angle of the subway tunnel interval pipeline bracket to be accurate. After the measuring tool of a subway tunnel interval pipeline bracket is used, the on-site measuring speed is greatly improved, and the measuring work of an interval double line can be finished in half day. Because the operation is convenient, measuring points can be increased at the places where the line curvature is large, and the smoothness and fluency of pipelines and bracket mounting lines can be ensured to the maximum extent.

Description

The interval line holder survey instrument of subway tunnel

Technical field

The utility model relates to the interval line holder survey instrument of a kind of subway tunnel.

Background technology

Extinguishing pipe support and the strong and weak electricity cable bearer installed in the subway station interval all are to be processed by angle steel, during installation, require bracket upright post to want camber applying tunnel wall, upwarping about horizontal trailing arm is spent from the horizontal by 2.Longer because of the interval, the kind of tunnel cross-section is more, and the shape of a hoof, circle and rectangular cross section are arranged, and every kind of section also is divided into single line, two-wire and straight-line segment and segment of curve, and pipeline is also different at the installation absolute altitude of various sections.Consequent problem is exactly, and different, the angle between each layer of cable bearer cross-arm and arc column is also inequality, makes that the difficulty of measurement and positioning is bigger according to different tunnel cross-sections for the angle between the horizontal trailing arm of support and the column.The measurement of the interval single section of straight-line segment is comparatively simple, can continue to use an angle value, and the measurement of angle in segment of curve interval bothers quite, rolling stock section's section line of coming in and going out especially, and radius of turn is little, and the value of taking measurement of an angle presents roll-off characteristic.Find when the back exploration of marching into the arena is on-the-spot that the extinguishing pipe support need become five kinds of angle processing unexpectedly in the single interval of my bid section, the surveying work amount is very big.For guarantee that fire protection pipeline and cable bearer install straight or curve is smooth and easy, must guarantee measurement of angle accurately.But do not having under the condition of suitable tools, only using ruler and protractor conjunction measuring speed very slow, and be subjected to the personnel operation factor affecting big, causing measurement result inaccurate and work efficiency is lower; And will raise the efficiency, can only amplify the spacing of measuring point, certainly will cause support angle processing inaccurate, minor radius interval especially is easy to generate " faulting of slab ends " scene of trailing arm absolute altitude.

The utility model content

The purpose of this utility model has provided the interval line holder survey instrument of a kind of subway tunnel, and it can solve the problem that prior art exists, and can significantly improve the speed and the precision of measurement, can avoid " faulting of slab ends " on-the-spot appearance effectively.

The utility model is achieved through the following technical solutions: the interval line holder survey instrument of subway tunnel, comprise column and horizontal trailing arm, and column and horizontal trailing arm are hinged by coupling shaft; Surveyor's staff and graphometer, the center of circle of graphometer and the axis coinciding of coupling shaft are installed on the horizontal trailing arm; Column is provided with the column reference line, and horizontal trailing arm is provided with horizontal trailing arm datum line, and column reference line and horizontal trailing arm datum line all pass the center of circle of graphometer; Horizontal trailing arm datum line overlaps with the scale mark of 2 degree of graphometer.

For further realizing the purpose of this utility model, can also realize by the following technical solutions: offer upper hopper chute and gliding groove respectively on the two sides up and down of horizontal trailing arm, the surveyor's staff slide block is set on the surveyor's staff, the graphometer slide block is set on the graphometer, the surveyor's staff slide block cooperates with upper hopper chute, and the graphometer slide block cooperates with gliding groove.Surveyor's staff is the surveyor's staff that is provided with air level, offers light trough in the surveyor's staff, and light trough is positioned at the air level bottom of surveyor's staff, and bulb is installed in the light trough, peace battery case in the surveyor's staff, and peace battery in the battery case, battery is connected with bulb by lead.

Good effect of the present utility model is: it is the specific purpose tool that accurate tunneltron line bracket takes measurement of an angle, after adopting the interval line holder survey instrument of described subway tunnel, in-site measurement speed greatly improves, and time half a day can be finished the surveying work of an interval two-wire.And because of easy and simple to handle, can encrypt measuring point, can guarantee the smooth-going smoothness of pipeline and support installation circuit to the full extent in the place that circuit curvature is bigger.It also has compactness simple for structure, cheap for manufacturing cost, good to the interval different tunnel cross-section adaptability of difference, and measuring accuracy is higher and easy and simple to handle, and the advantage low to operating personnel's Capability Requirement, and light and flexible are easy to carry.

Description of drawings

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the upward view of Fig. 1; Fig. 3 is that the A of Fig. 1 is to the structure for amplifying synoptic diagram; Fig. 4 is the local structure for amplifying synoptic diagram of the I of Fig. 1.

Reference numeral: 1 column, 2 graphometers, 3 horizontal trailing arm 4 surveyor's staffs 5 air levels 6 upper hopper chutes 7 gliding grooves 8 bulbs 9 battery cases 10 batteries 11 light troughs 12 coupling shafts 13 column reference lines 14 horizontal trailing arm datum line 15 surveyor's staff slide blocks 16 graphometer slide blocks.

Embodiment

The interval line holder survey instrument of subway tunnel described in the utility model comprises column 1 and horizontal trailing arm 3, and column 1 and horizontal trailing arm 3 can be that two 30cm are long, and the cross section is that the batten of rectangle is made; Column 1 and horizontal trailing arm 3 are hinged by coupling shaft 12; Surveyor's staff 4 and graphometer 2 are installed on the horizontal trailing arm 3, and the dead in line of the center of circle of graphometer 2 and coupling shaft 12 guarantees that graphometer 2 can measure the angle changing value between column 1 and the horizontal trailing arm 3 exactly; Column 1 is provided with column reference line 13, horizontal trailing arm 3 is provided with horizontal trailing arm datum line 14, column reference line 13 and horizontal trailing arm datum line 14 all pass the center of circle of graphometer 2, column reference line 13 and horizontal trailing arm datum line 14 can be reading and provide convenience, after column 1 is opened with horizontal trailing arm 3, angle value just can clearly be read in the position on graphometer 2 according to column reference line 13 and horizontal trailing arm datum line 14; Because when installing, upwarping about the horizontal trailing arm 3 of requirement support is spent from the horizontal by 2, for example the theoretical setting angle of Yao Qiuing is 90 degree, and the actual installation angle should be 92 degree, therefore, be reading and record convenience, when graphometer 2 is installed on the horizontal trailing arm 3, make horizontal trailing arm datum line 14 overlap, promptly when horizontal trailing arm 3 levels with 2 scale marks of spending of graphometer 2, shown angle is the actual installation angle on the graphometer 2, handled easily personnel construction.Surveyor's staff 4 can be an electronic horizontal ruler.

When using the interval line holder survey instrument of described subway tunnel and carrying out in-site measurement, column 1 is abutted against on the tunnel wall, the designed elevation line of the support cross-arm that has marked on the end of the horizontal trailing arm datum line 14 of horizontal trailing arm 3 and the tunnel wall aligns, with surveyor's staff 4 with horizontal trailing arm 3 leveling after, read protractor reading and record by the position of column reference line 13 on graphometer 2, this reading is the actual machining angle of support cross-arm and column 1.

For convenience of dismounting surveyor's staff 4 and graphometer 2, offer upper hopper chute 6 and gliding groove 7 on the two sides up and down of horizontal trailing arm 3 respectively, upper hopper chute 6 and gliding groove 7 can all be dovetail grooves, surveyor's staff slide block 15 is set on the surveyor's staff 4, graphometer slide block 16 is set on the graphometer 2, surveyor's staff slide block 15 cooperates with upper hopper chute 6, and graphometer slide block 16 cooperates with gliding groove 7.Surveyor's staff 4 and graphometer 2 can be convenient to change in case surveyor's staff 4 or graphometer 2 damage, thereby can prolong the serviceable life of the interval line holder survey instrument of described subway tunnel integral body as required by dismounting on the horizontal trailing arm 3.

As shown in Figure 1 and Figure 4, surveyor's staff 4 is provided with the surveyor's staff of air level 5, offers light trough 11 in the surveyor's staff 4, light trough 11 is positioned at air level 5 bottoms of surveyor's staff 4, and bulb 8 is installed in the light trough 11, peace battery case 9 in the surveyor's staff 4, peace battery 10 in the battery case 9, battery 10 is connected with bulb 8 by lead.Battery 10 can be bulb 8 power supplies, and bulb 8 can be air level 5 illuminations, so that operating personnel accurately observe air level 5.

The utility model not technology contents of detailed description is known technology.

Claims

1. the interval line holder survey instrument of subway tunnel, it is characterized in that: comprise column (1) and horizontal trailing arm (3), it is hinged that column (1) and horizontal trailing arm (3) pass through coupling shaft (12); Horizontal trailing arm (3) is gone up surveyor's staff (4) and graphometer (2), the axis coinciding of the center of circle of graphometer (2) and coupling shaft (12) is installed; Column (1) is provided with column reference line (13), and horizontal trailing arm (3) is provided with horizontal trailing arm datum line (14), and column reference line (13) and horizontal trailing arm datum line (14) all pass the center of circle of graphometer (2); Horizontal trailing arm datum line (14) overlaps with the scale mark of 2 degree of graphometer (2).

2. the interval line holder survey instrument of subway tunnel according to claim 1, it is characterized in that: offer upper hopper chute (6) and gliding groove (7) on the two sides up and down of horizontal trailing arm (3) respectively, surveyor's staff slide block (15) is set on the surveyor's staff (4), graphometer slide block (16) is set on the graphometer (2), surveyor's staff slide block (15) cooperates with upper hopper chute (6), and graphometer slide block (16) cooperates with gliding groove (7).

3. the interval line holder survey instrument of subway tunnel according to claim 1, it is characterized in that: surveyor's staff (4) is the surveyor's staff that is provided with air level (5), offer light trough (11) in the surveyor's staff (4), light trough (11) is positioned at air level (5) bottom of surveyor's staff (4), bulb (8) is installed in the light trough (11), peace battery case (9) in the surveyor's staff (4), peace battery (10) in the battery case (9), battery (10) is connected with bulb (8) by lead.