CN217332886U - Tunnel face transient electromagnetic coil carrying device - Google Patents

Abstract

The utility model discloses a tunnel face transient solenoid carrying device belongs to tunnel detection technology field to solve the difficult problem of adjusting size and yielding of coil bracket. The device comprises a square frame, wherein the four sides of the square frame are adjustable in size, a cross rod with adjustable length and a plurality of winding frames are arranged in the square frame, and at least one turn of coil is wound on each winding frame; the winding frame comprises an inner frame, a movable frame and a clamping ring, wherein the inner frame is uniformly arranged on the cross rod at intervals, and the movable frame is movably arranged on the cross rod through the clamping ring. The utility model discloses simple structure, cost are low, the equipment is convenient, the on-the-spot practicality is strong.

Description

Tunnel face transient electromagnetic coil carrying device

Technical Field

The utility model belongs to the technical field of the tunnel detects, concretely relates to tunnel face transient solenoid carrying device.

Background

The transient electromagnetic method is adopted to accurately predict and forecast the geological condition in front of the tunnel face of the tunnel for years, and the prediction data is combined with the concrete condition of the tunnel to judge the geological content in advance and carry out the next construction schedule.

When the transient electromagnetic method is used for predicting and predicting tunnel face geological conditions, the following problems mainly exist:

(1) generally, engineering geological conditions such as lithology, hydrogeology, unfavorable geology and the like of a target geologic body are unknown, interference factors are many, detection depth and precision need to be controlled according to different detection requirements, and therefore the coil size is required to be provided with different sizes and specifications and different turns, and the coil size can be adjusted timely and conveniently according to field requirements;

(2) the working environment of the tunnel face is severe, the requirement on the coil is high, and the size and the shape of the coil and whether the coil support is stable or not can influence the detection effect; when the field coil is fixed, the coil is fixed after a bracket is bound by light materials such as bamboo boards, PVC and the like, the field organization is extremely inconvenient, multiple persons are required to cooperate, time and labor are consumed, and the coil is easy to deform or even scatter when the coil is bound carelessly; and this kind of wireframe is tied up the system troublesome, does not disassemble and is difficult to carry, and the mixed and disorderly difficult split of coil when disassembling, and spare part is more after disassembling, loses easily.

(3) Besides conventional advanced geological prediction, the size of the coil needs to be adjusted for detecting water leakage at the back of the tunnel lining so as to meet the requirement of detecting different depths.

Based on the problems in the background art, research and development personnel provide a tunnel face transient electromagnetic coil carrying device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tunnel face transient solenoid carries on device to solve the difficult problem of adjusting size and yielding of coil bracket.

In order to solve the above problems, the utility model discloses technical scheme does:

the transient electromagnetic coil carrying device for the tunnel face comprises a square frame, wherein the four sides of the square frame are adjustable in size, a cross rod with adjustable length and a plurality of winding frames are arranged in the square frame, and at least one turn of coil is wound on each winding frame; the winding frame comprises an inner frame, a movable frame and a clamping ring, wherein the inner frame is uniformly arranged on the cross rod at intervals, and the movable frame is movably arranged on the cross rod through the clamping ring.

Furthermore, the cross rod is a spring rod; the square frame comprises four groups of angle plates and flat plates which are connected with each other at intervals. The square frame structure is standard, the processing is convenient, and the cost is low; the portable detector is convenient to carry in field detection, fast to disassemble and assemble and higher in practicability.

Further, the inner corners of the angle plates are provided with backing plates, and the inner sides of the backing plates and the flat plates are provided with a plurality of line cards; the outer side of the angle plate is also provided with a plurality of line cards. The line card is used for fixing the winding of the coil, and the backing plate is used for ensuring that the line card measured in the frame is in one line.

Furthermore, two groups of grooves are arranged on the inner side of the flat plate, and the cross rods are clamped in the four grooves. The overall structure stability is stronger.

Furthermore, the inner frame and the movable frame are both non-metal rod pieces, and the coil is movably arranged on the inner frame and the movable frame through a plurality of wire clamps.

Further, base, branch, the base rear side is established under the square frame, and branch connects square frame top and base front side, and base and branch support the square frame jointly and are close to the face.

Furthermore, the supporting rod is a spring rod with adjustable length, and horizontal bubbles are arranged on the top of the square frame and the base. For ensuring that the frame is vertically close to the face.

The utility model has the advantages as follows:

(1) the utility model discloses utilize the adjustable size square frame to cooperate the length adjustment of cross rod to realize carrying device overall frame's adaptation degree and stability, the inner frame wherein is fixed, and the movable frame can decide to install or demolish according to the length adjustment of cross rod, just so can guarantee the stability that has the cross rod support in the different square frame sizes, is difficult to warp or loose the frame, provides the basic condition for the simple operation of carrying device in the operation process; and coils with different sizes can be carried, and a more diversified and accurate structure guarantee is provided for the data of water detection and prediction of the tunnel face with different depths and different accuracies.

(2) The utility model discloses the dismouting is simple and convenient, and installation back stability is good. The cross rod of the big part is flexible after being disassembled, and is convenient to accommodate and store in the carriage; the coil of the small piece is wound on the movable frame, and the cross rod is used for supporting the whole structure, so that the requirement on the stability of the movable frame is not high, and the movable frame can still keep the flatness and the stability even being folded after being disassembled and installed on the cross rod in use; only a group of coils inside and outside the square frame need to be wound and stored, and the problem of coil winding is solved easily.

(3) The utility model discloses simple structure, cost are low, the equipment is convenient, the on-the-spot practicality is strong.

Drawings

FIG. 1 is a schematic structural diagram of a transient electromagnetic coil carrying device on a tunnel face;

FIG. 2 is a schematic mounting diagram of a frame in the transient electromagnetic coil carrying device on the tunnel face;

FIG. 3 is a schematic structural diagram of a square frame in the transient electromagnetic coil carrying device on the tunnel face;

FIG. 4 is a schematic structural diagram of a square frame in the transient electromagnetic coil carrying device on the tunnel face;

fig. 5 is a schematic structural diagram of a frame in the tunnel face transient electromagnetic coil carrying device.

The reference numbers are as follows: 1-square frame; 11-corner panels; 12-plate; 13-line card; 14-a groove; 15-a backing plate; 2-a base; 3-a strut; 4-a cross bar; 5-winding frame; 51-an inner frame; 52-a movable frame; 53-snap ring.

Detailed Description

As shown in fig. 1-5, the transient electromagnetic coil carrying device for tunnel face comprises a frame 1, a base 2 and a support rod 3, wherein the rear side of the base 2 is arranged below the frame 1, the support rod 3 is connected with the top of the frame 1 and the front side of the base 2, and the frame 1 is supported by the base 2 and the support rod 3 to be close to the face. Specifically, the method comprises the following steps: branch 3 is length-adjustable's spring beam, all is equipped with the level bubble on 1 top of square frame and the base 2 for guarantee that 1 is vertical to be close to the face of a palm of square frame.

The size of four sides of the square frame 1 is adjustable, a cross rod 4 and a plurality of winding frames 5 are arranged in the square frame 1, and specifically, the cross rod 4 is a spring rod; at least one turn of coil is wound on the winding wire frame 5, the coil comprises a receiving coil and a transmitting coil, and the winding wire can be wound according to the field requirement, which belongs to the prior art and is not described in detail.

The square frame 1 comprises four groups of angle plates 11 and flat plates 12 which are connected at intervals, wherein the inner corners of the angle plates 11 are respectively provided with a backing plate 15, and the inner sides of the backing plates 15 and the flat plates 12 are respectively provided with a plurality of line cards 13; a plurality of line cards 13 are also arranged on the outer side of the angle plate 11; the above structure realizes the winding inside and outside the block 1. Two groups of grooves 14 are arranged on the inner side of the flat plate 12 and used for clamping four end parts of the spring rod.

The winding frame 5 comprises an inner frame 51, a movable frame 52 and a clamping ring 53, wherein the inner frame 51 is uniformly arranged on the cross rod 4 at intervals, and the movable frame 52 is movably arranged on the cross rod 4 through the clamping ring 53. The inner frame 51 and the movable frame 52 are all non-metal rods, and the coils are movably arranged on the non-metal rods through a plurality of wire clamps 13.

The utility model discloses operating condition has the multiple: the states shown in fig. 1-4 can all work independently.

FIG. 1 is provided with a base 2, a support rod 3 is more stable, and FIG. 4 is more portable when being held by a hand in a low position; the coils combined in the figure 2 have more coils and larger adjustment space, and are suitable for high position measurement in a tunnel, and the figure 3 only has one group of transmitting and receiving coils, and the requirement can be met in simple measurement.

Taking fig. 1 with the most complete structure as an example, the operation process is as follows:

the overlapping degree of the installation angle plate 11 and the flat plate 12 is determined according to the depth required by the site, screws are screwed in, a square frame 1 with a proper size is built, and then a backing plate 15 is installed.

After the size of the square frame 1 is determined, the movable frames 52 are installed at equal intervals, the cross rods 4 are compressed, the ends of the cross rods 4 are clamped into the clamping rings 53, the movable frames 52 are clamped on the cross rods 4 after the spring rods are reset, coils on the movable frames 52 are combed to be in the same direction as those of the inner frame 51, the numbering sequence is adjusted, and wiring is facilitated during measurement.

The two persons cooperate to compress the cross bars 4 with the movable frames 52 installed at equal intervals and then clamp the cross bars into the grooves 14, thereby completing the state shown in fig. 2. The wire is wound in the line cards 13 inside and outside the box 1 to form a maximum set of coils. And finally, installing the base 2 and the supporting rod 3, and ensuring the verticality of the square frame 1 by adjusting the length of the supporting rod 3.

After the installation, as shown in fig. 1, when the high-level elevating platform is used for measurement, the utility model is pushed close to the face by the elevating platform, and the connection, measurement and counting are performed according to the prior art. And calculating and selecting data for prediction according to the requirements.

Generally, the size of the frame 1 is slightly increased during high position measurement, when the depth to be measured is small, the partial connection of the peripheral movable frame 52 is disconnected, and the coil connection in the inner frame 51 is only used for measurement, namely small-area data, and the depth is shallow. The utility model discloses can remove dismouting on the finite space of elevating platform from like this.

When the ground works at a low position, the size of the square frame 1 is adjusted according to the requirement, the square frame is enlarged when the size is not enough, the ground work is adjusted simply and conveniently, and the measuring progress and efficiency can be ensured.

Claims (7)

1. Tunnel face transient solenoid carries device, including square frame (1), its characterized in that: the size of four sides of the square frame (1) is adjustable, a cross rod (4) with adjustable length and a plurality of winding frames (5) are arranged in the square frame (1), and at least one turn of coil is wound on each winding frame (5); winding frame (5) include inside casing (51), movable frame (52), snap ring (53), inside casing (51) are established on cross bar (4) evenly at interval, movable frame (52) are established on cross bar (4) through snap ring (53) activity.

2. The tunnel face transient solenoid carrying device as set forth in claim 1, wherein: the cross rod (4) is a spring rod; the square frame (1) comprises four groups of angle plates (11) and flat plates (12) which are connected with each other at intervals.

3. The tunnel face transient solenoid carrying device as set forth in claim 2, wherein: the inner corners of the angle plates (11) are respectively provided with a backing plate (15), and the inner sides of the backing plates (15) and the flat plates (12) are respectively provided with a plurality of line cards (13); and a plurality of line cards (13) are also arranged on the outer side of the angle plate (11).

4. A tunnel face transient solenoid carrying device as claimed in claim 2 or 3, wherein: two groups of grooves (14) are formed in the inner side of the flat plate (12), and the cross rod (4) is clamped in the four grooves (14).

5. The tunnel face transient solenoid carrying device as set forth in claim 1, wherein: the inner frame (51) and the movable frame (52) are all nonmetal rod pieces, and the coils are movably arranged on the inner frame through a plurality of line cards (13).

6. The tunnel face transient solenoid carrying device as set forth in claim 1, wherein: still include base (2), branch (3), base (2) rear side is established under square frame (1), and square frame (1) top and base (2) front side are connected in branch (3), base (2) and branch (3) support square frame (1) jointly and are close to the face.

7. The tunnel face transient solenoid carrier of claim 6, wherein: the supporting rod (3) is a spring rod with adjustable length, and the top of the square frame (1) and the base (2) are both provided with horizontal bubbles.

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