Tunnel shaft construction measuring device

Abstract

The utility model relates to the technical field of engineering measurement, in particular to a tunnel shaft construction measuring device which comprises a U-shaped support installed on the side wall of a well mouth, a clamping assembly is arranged in the U-shaped support, a vertical rod is fixedly connected to the upper end of the U-shaped support, and the upper end of the vertical rod is rotationally connected with a rotating cylinder through a rotating shaft. A cantilever is fixedly connected to the upper end of the rotary drum, an extension rod is arranged in the cantilever, one end of the extension rod extends out of the cantilever and is provided with a pulley, a steel wire winch is arranged at the end, away from the pulley, of the cantilever, and a steel wire is wound on the steel wire winch. The free end of the steel wire sequentially penetrates through the cantilever, the extension rod and the pulley and is provided with a plumb bob. The utility model solves the problems that the existing shaft connection survey method is complex in operation, time-consuming and labor-consuming, and the whole facility is very easy to be interfered by the external environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering survey technical field, concretely is a tunnel vertical shaft construction survey device. BACKGROUND

[0002] In the urban rail transit engineering construction, in order to ensure that shield interval and mine interval strictly normal tunneling according to design requirement parameter, ensure tunneling quality, tunnel high-precision through, the accuracy and timeliness of vertical shaft contact survey work play a vital role.

[0003] The urban rail transit engineering vertical shaft contact survey generally adopts the mode of one shaft orientation, two shaft orientation, and usually adopts the form of measuring hanging steel wire and steel tape to achieve the transmission of aboveground and underground coordinate direction and elevation. The relevant survey technical specification requires that the vertical shaft contact survey work must be carried out independently for three times, and the survey workload is huge. The conventional method at present is as follows: the steel pipe or square wood is taken to the scene, and the steel wire or steel tape is wound on it, and then the steel pipe or square wood is inserted into the foundation pit vertical shaft, after the steel wire or steel tape is placed in a reasonable position, the heavy object is pressed on the rear part of the steel pipe or square wood to fix it, and the lead weight or the like is arranged below the steel wire or steel tape, and after the lead weight or the like is stabilized, the vertical shaft contact survey can be carried out. After the first survey work is completed, the heavy object at the rear part of the steel pipe or square wood is removed, and the steel pipe or square wood is moved, so that the position of the steel wire is changed, the heavy object is pressed on the rear part of the steel pipe or square wood again to fix it, and the second survey work is carried out. The above steps are repeated until the third survey work is completed. The above method is complex in operation, time-consuming and labor-consuming, and the whole facility is easily disturbed by external environment. UTILITY MODEL CONTENTS

[0004] In order to solve the problems of the prior art, the utility model provides a highway crack repairing device, which solves the problems of the prior art, such as complex operation, time-consuming and labor-consuming, and the whole facility is easily disturbed by external environment.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tunnel vertical shaft construction survey device, which comprises a U-shaped support installed on the side wall of the well mouth, a clamping assembly is arranged in the U-shaped support, a vertical rod is fixedly connected to the upper end of the U-shaped support, the upper end of the vertical rod is rotatably connected with a rotating drum through a rotating shaft, a cantilever is fixedly connected to the upper end of the rotating drum, an extension rod is arranged in the cantilever, one end of the extension rod extends out of the cantilever and is provided with a pulley, a steel wire winch is arranged at the end of the cantilever away from the pulley, a steel wire is wound on the steel wire winch, and a lead weight is arranged at the free end of the steel wire in sequence through the cantilever, the extension rod and the pulley.

[0006] Adopt the above structure design, through the clamping assembly, the device is fixed on the well mouth side wall, disassembly simple and fast, convenient for staff to move and install, the cantilever can rotate relative to the vertical rod, convenient for installing the steel wire and adjusting the length of the cantilever and vertical rod, guarantee the personal safety of the measuring personnel, improve the monitoring efficiency.

[0007] Preferably, the clamping assembly includes a guide column fixedly connected inside the U-shaped support and a clamping plate sleeved on the guide column, one side of the clamping plate is rotatably connected with a threaded rod through a fixed seat, the other end of the threaded rod penetrates through the U-shaped support and is provided with a hand wheel, and the threaded rod is threadedly connected with the U-shaped support.

[0008] Adopt the above structure design, by rotating the hand wheel, the threaded rod rotates to push the clamping plate to move along the guide column direction, and then the clamping plate and the U-shaped support can clamp the well mouth side wall, so that the structure is simple and convenient to operate, and the time for replacing the device to measure the position is saved.

[0009] Preferably, one side of the extension rod is fixedly connected with a rack, the inside of the cantilever is rotatably connected with a gear through a rotating rod, one end of the rotating rod penetrates through the cantilever and is provided with a rotating handle, and the rack is engaged with the gear.

[0010] Adopt the above structure design, by rotating the rotating handle to drive the gear to rotate, since the gear is engaged with the rack, the length of the extension rod extending out of the cantilever can be adjusted, so that the drop point position of the plumb bob can be adjusted according to actual conditions.

[0011] Preferably, the fixing bolt penetrates through the rotating drum and abuts against the vertical rod.

[0012] Adopt the above structure design, the rotating drum and the vertical rod are relatively fixed through the fixing bolt, so that the rotation of the rotating drum in the measuring process is prevented from affecting the measuring result.

[0013] Preferably, the sidewall of the extension rod is marked with a scale line.

[0014] Adopt the above structure design, the scale line is arranged to facilitate determining the length of the extension rod extending out of the cantilever.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1, through the clamping assembly, the device is fixed on the well mouth side wall, disassembly simple and fast, convenient for staff to move and install, the cantilever can rotate relative to the vertical rod, convenient for installing the steel wire and adjusting the length of the cantilever and vertical rod, guarantee the personal safety of the measuring personnel, improve the measuring efficiency.

[0017] 2, by rotating the rotating handle gear rotation, because the gear and rack meshing, and can adjust the length of the extension arm out of the cantilever, so you can adjust the drop point position according to the actual situation of the plumb. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the structural schematic diagram of the utility model;

[0019] Fig. 2 It is the internal structure schematic diagram of the cantilever of the utility model;

[0020] Fig. 3 It is the structural schematic diagram of the clamping assembly of the utility model. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figs. 1 to 3 The utility model provides a kind of technical scheme: a tunnel shaft construction surveying device, including the U-shaped support 2 being installed on the well mouth side wall 1, the U-shaped support 2 is provided with clamping assembly 3 in, the U-shaped support 2 upper end is fixedly connected with vertical rod 4, the vertical rod 4 is perpendicular to the upper top surface of the U-shaped support 2, the vertical rod 4 upper end is rotationally connected with rotating cylinder 6, the upper end of the rotating cylinder 6 is fixedly connected with cantilever 7, the cantilever 7 and the rotating cylinder 6 are 90 degrees included angle, the cantilever 7 is provided with extension rod 8, one end of the extension rod 8 is out of the cantilever 7 and is provided with pulley 10, the end of the cantilever 7 away from the pulley 10 is provided with steel wire capstan 11 with handle, the steel wire 14 is wound on the steel wire capstan 11, the free end of the steel wire 14 is sequentially passed through the cantilever 7, extension rod 8 and pulley 10 and is provided with plumb 15.

[0023] The clamping assembly 3 includes the guide column 302 being fixedly connected in the U-shaped support 2 and the clamping plate 301 being sleeved on the guide column 302, the guide column 302 is provided with two parallel, two guide columns 302 are respectively through the both ends of the clamping plate 301, the clamping plate 301 is slidably connected on the guide column 302, one side of the clamping plate 301 is rotationally connected with threaded rod 303 by fixed seat 305, the other end of the threaded rod 303 is through the U-shaped support 2 and is installed hand wheel 304, the threaded rod 303 is screw connected with the U-shaped support 2.

[0024] One side of the extension rod 8 is fixedly connected with a rack 9, the length of the rack 9 is equal to the length of the extension rod 8, the inside of the cantilever 7 is rotatably connected with a gear 12 through a rotating rod, one end of the rotating rod passes through the cantilever 7 and is installed with a rotating handle 13, the rack 9 is engaged with the gear 12.

[0025] The fixing bolt 5 passes through the rotating drum 6 and abuts against the vertical rod 4.

[0026] The side wall of the extension rod 8 is engraved with a scale.

[0027] Working principle: in use, first, the U-shaped support 2 is clamped on the shaft mouth side wall 1 of the shaft, the hand wheel 304 is rotated to make the clamping plate 301 clamp the shaft mouth side wall 1, the rotating drum 6 is rotated to make the cantilever 7 be located outside the shaft mouth range, the staff member passes the steel wire 14 on the wire winch 11 through the cantilever 7, the extension rod 8 and the pulley 10 in sequence, then hangs the plumb bob 15 on the free end of the steel wire 14, rotates the rotating handle 13 according to the actual situation, adjusts the length of the extension rod 8 extending out of the cantilever 7, then according to the command of the observer, pastes the reflective sticker on the steel wire 14, turns the cantilever 7 to the shaft mouth range and fixes the rotating drum 6 relative to the vertical rod 4 through the fixing bolt 5, then slowly rotates the wire winch 11, lowers the plumb bob 15 to the appropriate position of the shaft bottom and puts it into the oil drum in the shaft, waits for the plumb bob 15 to be completely stationary through the natural resistance of the oil, makes the steel wire 14 be absolutely plumb from the shaft to the shaft, pastes the reflective sticker on the steel wire 14 below the shaft, then the contact measurement can be carried out.

[0028] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. Although the utility model has been described in detail with reference to the foregoing embodiments, the person skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for measuring the construction of a tunnel shaft, characterized in that: The utility model provides a well mouth side wall (1) is provided with the U-shaped support (2) of installing, the U-shaped support (2) inside is provided with the clamping assembly (3), the U-shaped support (2) upper end fixedly connected with vertical rod (4), the vertical rod (4) upper end is rotatably connected with the rotary drum (6) through the pivot, the rotary drum (6) upper end fixedly connected with cantilever (7), the cantilever (7) is provided with extension rod (8), one end of extension rod (8) is stretched out of cantilever (7) and is provided with pulley (10), the cantilever (7) is provided with steel wire capstan (11) away from pulley (10) one end, the steel wire capstan (11) is wound with steel wire (14), the free end of steel wire (14) is sequentially passed through cantilever (7), extension rod (8) and pulley (10) and is provided with plumb bob (15).

2. The tunnel shaft construction surveying device according to claim 1, characterized in that: The clamping assembly (3) includes a guide column (302) fixedly connected inside the U-shaped support (2) and a clamping plate (301) sleeved on the guide column (302), one side of the clamping plate (301) is rotatably connected with a threaded rod (303) through a fixed seat (305), the other end of the threaded rod (303) passes through the U-shaped support (2) and is provided with a hand wheel (304), and the threaded rod (303) is threadedly connected with the U-shaped support (2).

3. The tunnel shaft construction surveying device according to claim 1, characterized in that: One side of the extension rod (8) is fixedly connected with a rack (9), the cantilever (7) is rotatably connected with a gear (12) through a rotating rod, one end of the rotating rod passes through the cantilever (7) and is provided with a rotating handle (13), and the rack (9) is engaged with the gear (12).

4. The tunnel shaft construction surveying device according to claim 1, characterized in that: The fixing bolt (5) passes through the rotary drum (6) and abuts against the vertical rod (4).

5. The device for measuring the construction of a tunnel shaft according to claim 1, characterized in that: The side wall of the extension rod (8) is marked with a scale. The utility model discloses a well mouth side wall (1) is provided with the U-shaped support (2) of installing, the U-shaped support (2) inside is provided with the clamping assembly (3), the U-shaped support (2) upper end fixedly connected with vertical rod (4), the vertical rod (4) upper end is rotatably connected with the rotary drum (6) through the pivot, the rotary drum (6) upper end fixedly connected with cantilever (7), the cantilever (7) is provided with extension rod (8), one end of extension rod (8) is stretched out of cantilever (7) and is provided with pulley (10), the cantilever (7) is provided with steel wire capstan (11) away from pulley (10) one end, the steel wire capstan (11) is wound with steel wire (14), the free end of steel wire (14) is sequentially passed through cantilever (7), extension rod (8) and pulley (10) and is provided with plumb bob (15).

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