Rapid lofting device for excavation contour of electric power pipe gallery

Abstract

The utility model discloses a quick lofting device for an excavation contour of an electric power pipe gallery, which meets the construction requirement of quick lofting of the excavation contour of the electric power pipe gallery. The lofting device comprises a laser beam emitter, two supporting frames and a two-way threaded sleeve, the two supporting frames are symmetrically arranged, and the two supporting frames are mechanically and movably connected through the two-way threaded sleeve; the supporting frame comprises I-shaped steel, a top supporting rod and a base, mounting holes are formed in the top of the I-shaped steel, the top supporting rod is mounted through a steel pin, mounting holes are formed in the bottom of the I-shaped steel, the base is mounted through a steel pin, and a plurality of laser beam emitters are arranged on the I-shaped steel from top to bottom. The laser beam emitter emits laser beams in parallel in the direction perpendicular to the I-shaped steel. The device is of a frame structure, can be rapidly hoisted to a power pipe gallery excavation foundation pit part needing to be measured, can be rapidly deployed and adjusted, and can be used for rapidly lofting the excavation part, so that the requirement of rapid construction is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to power pipe gallery excavation contour quick lofting tool technical field. BACKGROUND

[0002] Power pipe gallery excavation refers to the earthwork engineering of excavating pipe gallery foundation pit before the construction of underground pipe gallery, and the quick lofting of the excavated foundation pit is needed to make the slope gradient of the foundation pit meet the basic requirements of safe construction. The existing pipe gallery excavation contour lofting work is assisted by a total station and a level, and this lofting method is relatively low in efficiency and cannot meet the requirements of rapid construction. UTILITY MODEL CONTENTS

[0003] In order to solve the problems in the prior art, the utility model provides a power pipe gallery excavation contour quick lofting device to solve the construction requirements of power pipe gallery excavation contour quick lofting.

[0004] The utility model solves the technical problems by adopting the following technical scheme:

[0005] A power pipe gallery excavation contour quick lofting device, comprising a laser beam emitter, a support frame and a bidirectional threaded sleeve, characterized in that the support frame is two and symmetrically arranged, and the two support frames are mechanically movably connected through the bidirectional threaded sleeve; the support frame comprises an I-beam, a top support rod and a base, wherein the top of the I-beam is provided with a mounting hole and the top support rod is installed through a steel pin, the bottom of the I-beam is provided with mounting holes and the base is installed through a steel pin, and a plurality of laser beam emitters are arranged on the I-beam from top to bottom, the laser beam emitters emit laser beams in parallel along the direction perpendicular to the I-beam, and the emitted laser beams are used for quick lofting of the slope surface of the side skin.

[0006] Further, the top support rod comprises a hinged part, a support rod body and a threaded part, wherein the two ends of the support rod body are respectively the hinged part and the threaded part, and the threaded part is matched with the threads of the bidirectional threaded sleeve.

[0007] Further, the outer side surface of the support rod body is welded with steel nails embedded in the slope.

[0008] Further, the bidirectional threaded sleeve is divided into a positive internal thread and a reverse internal thread on the two sides of the middle part.

[0009] Further, the outer side of the bidirectional threaded sleeve is provided with a handle.

[0010] Further, the base comprises a vertical plate, a bottom plate and a steel nail, wherein the steel nail is vertically welded at the bottom of the bottom plate, the vertical plate is welded on the upper surface of the bottom plate, and the vertical plate is hingedly connected with the I-beam through a steel pin.

[0011] The utility model discloses the beneficial effect is:

[0012] The device is a frame structure, can be hoisted to the electric power pipe gallery excavation foundation pit part needing measurement quickly, and carries out the quick deployment and adjustment, carries out the quick lofting to the excavation part, satisfies the requirement of quick construction.

[0013] The device has higher stability, is fixed firmly, and can quickly form a lofting reference surface with a laser beam emitter, solving the problem of low lofting efficiency of traditional total station and level. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the use state diagram of the device.

[0015] Figure 2 It is the front view of Figure 1 .

[0016] Figure 3 It is the front view of (left, right) support frame.

[0017] Figure 4 It is the A-A sectional view of Figure 3 .

[0018] Figure 5 It is the perspective view of support frame.

[0019] In the drawing:

[0020] 00 electric power pipe gallery foundation pit,

[0021] 10 laser beam emitter,

[0022] 20 left support frame, 21 I-steel, 22 top support rod, 221 hinged part, 222 support rod main body, 223 threaded part, 23 base,

[0023] 30 right support frame,

[0024] 40 two-way threaded sleeve,

[0025] 50 laser beam. DETAILED DESCRIPTION

[0026] A kind of electric power pipe gallery excavation contour quick lofting device, it is applicable to electric power pipe gallery excavation construction.It includes laser beam emitter 10, left support frame 20, right support frame 30, two-way threaded sleeve 40, wherein left and right support frame is two symmetrically arranged and same structure frame structure, two frame are connected by two-way threaded sleeve transition, the following will be described with reference to the drawings attached Figure 1 to the attached Figure 5 Detailed description.

[0027] The support frame is two (including left support frame 20, right support frame 30), completely same in structure, this embodiment only one of the support frame is described in detail, for example, with the left support frame as an example.

[0028] The support frame includes I-beam 21, top support rod 22, base 23, wherein the I-beam 21 is the I-beam of light steel skeleton, the I-beam has long length, the length is designed according to the slope length, the mounting hole is provided at the top and bottom of the I-beam respectively, the mounting hole is the round hole of hinged connection, the top support rod and the base are installed through the steel pin respectively.

[0029] The top support rod 22 in the embodiment includes hinged part 221, support rod body 222 and threaded part 223, wherein the support rod body is threaded steel, the hinged part and the threaded part are respectively at both ends of the support rod body, wherein the hinged part 221 is composed of two steel plate ribs and a round hole provided on the steel plate rib, the two steel plate ribs are clamped on the top of the I-beam and hingedly connected by using the steel pin, and an active connection is formed after connection. The threaded part 223 is at the other end of the support rod away from the hinged part, and is used for cooperating with the threads of the bidirectional threaded sleeve.

[0030] Further, steel nails (not shown in the figure) are welded and fixed on the outer side surface of the support rod body 222, the steel nails can be quickly embedded into the slope, and the stability of the support rod body is improved.

[0031] It is further need to be explained that the threaded parts in the left support frame and the right support frame are different in screw direction, that is, one is forward threaded and the other is reverse threaded, and correspondingly, the bidirectional threaded sleeve 40 is divided into two sides by the middle, and the two sides are forward internal thread and reverse internal thread respectively, forming a bidirectional threaded sleeve, a handle is provided on the outer side of the bidirectional threaded sleeve 40, the handle is perpendicular to the sleeve, and is used for two-hand operation, that is, by rotating the bidirectional threaded sleeve, the horizontal distance between the two top support rods can be effectively adjusted. For example, the sleeve is rotated forward, and the horizontal distance between the two is increased, and the sleeve is rotated reversely, and the horizontal distance between the two is reduced.

[0032] The base is hingedly installed at the lower end of the support rod body, and the base 23 includes a vertical plate, a bottom plate and a steel nail, wherein the bottom plate is provided with a steel nail at the bottom, the steel nail is vertically welded at the bottom of the bottom plate, and a vertical fixed vertical plate is welded on the upper surface of the bottom plate. The vertical plates are two and are arranged in parallel, and are hingedly connected with the bottom of the I-beam by using the steel pin, that is, a joint active connection is formed.

[0033] H-beams are drilled and laser beam emitters 40 are installed, in this embodiment, four laser beam emitters are arranged from top to bottom on each H-beam, which emit laser beams in parallel along a direction perpendicular to the H-beam, the emitted laser beams are used to quickly loft the slope surface of the side skin, and a construction unit can quickly form a loft according to the position relationship between the laser surface formed by the laser beams and the slope surface, for example, when a certain point of the slope does not meet the requirements, it can be intuitively observed.

[0034] The method is as follows: first, the left support frame and the right support frame in the device are connected through the bidirectional threaded sleeve to form a preliminary connection, then the device is hoisted to the slope position of the power pipe gallery foundation pit 00, in the hoisting process, the bottom of the left support frame and the right support frame is ensured to fall into the slope position, and the steel nails are embedded into the pit bottom base layer, so that the bottom of the left support frame and the right support frame is fixed, the fixing utilizes the characteristics of the foundation pit soil and stone layer that the steel nails are easy to be inserted, and realizes quick temporary fixing. In the second step of hoisting, the bidirectional threaded sleeve is manually operated to make the left support frame and the right support frame on both sides respectively adhere to the two sides of the slope to form a stable effect. In the third step, the laser beam emitter is turned on, the laser beam emitter emits a laser beam 50, the laser beam forms a laser beam surface, and the slope degree and the slope quality are quickly lofted.

[0035] The above-described embodiments are only used to describe the preferred embodiments of the utility model, and do not limit the scope of the utility model, and under the premise of not departing from the design spirit of the utility model, various deformations and improvements of the utility model by the related technicians in the field shall fall into the protection scope determined by the claim of the utility model.

Claims

1. A power utility tunnel excavation profile rapid lofting device comprising a laser beam emitter, a support frame and a bidirectional threaded sleeve, characterized in that, The support frame is two and symmetrically arranged, and the two support frames are mechanically movably connected through the bidirectional threaded sleeve; the support frame comprises an I-shaped steel, a top supporting rod and a base, wherein the top of the I-shaped steel is provided with a mounting hole and the top supporting rod is mounted through a steel pin, the bottom of the I-shaped steel is provided with mounting holes and the base is mounted through a steel pin, and a plurality of laser beam emitters are arranged on the I-shaped steel from top to bottom, which emit laser beams in parallel along a direction perpendicular to the I-shaped steel, and the emitted laser beams quickly loft the slope surface of the slope.

2. The power pipe gallery excavation profile rapid lofting device according to claim 1, characterized in that, The top supporting rod comprises a hinged part, a supporting rod body and a threaded part, wherein the two ends of the supporting rod body are respectively the hinged part and the threaded part, and the threaded part is matched with the threads of the bidirectional threaded sleeve.

3. The device according to claim 2, characterized in that, The outer side surface of the supporting rod body is welded with steel nails embedded in the slope.

4. The power pipe gallery excavation profile rapid lofting device according to claim 3, characterized in that, The bidirectional threaded sleeve is limited by the middle part, and the two sides thereof are respectively a forward internal thread and a reverse internal thread.

5. The device according to claim 4, characterized in that, The outer side of the bidirectional threaded sleeve is provided with a handle.

6. The utility tunnel excavation profile rapid lofting device of claim 1, wherein, The base comprises a vertical plate, a bottom plate and a steel nail, wherein the steel nail is vertically welded at the bottom of the bottom plate, the vertical plate is welded on the upper surface of the bottom plate, and the vertical plate is hingedly connected with the I-shaped steel through a steel pin.

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