CN219474506U - Depth measurement structure of tunnel crack - Google Patents

Abstract

The utility model relates to the technical field of measuring equipment, in particular to a depth measuring structure of tunnel cracks, which comprises a bottom plate positioned at the bottommost part, wherein a shape support is fixedly connected to the top of the bottom plate, a detection box is rotationally connected to the shape support, a follower gear capable of rotating along with the detection box is arranged on the outer wall of one side of the shape support, and a limit pointer used for limiting the rotation of the follower gear is arranged below the follower gear on the outer wall of the shape support; according to the utility model, through the rotatable detection box, the follow-up gear and the limiting pointer which can limit the rotation angle of the detection box are arranged, and when the detection box is used, the detection box can be adjusted to more fixable angles, so that the depth of cracks positioned at different positions of the arc-shaped inner wall of a tunnel can be conveniently measured.

Description

Depth measurement structure of tunnel crack

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to a depth measuring structure for tunnel cracks.

Background

The tunnel crack is generated after the inner wall of the tunnel is cracked, and if the depth of the crack is large, the crack is probably caused by the fluctuation of the mountain structure, so that the measurement of the depth of the tunnel crack is an important measurement step for judging whether the tunnel can be normally used after the crack occurs.

Still use the structure of probe measurement tunnel crack degree of depth among the prior art, need be perpendicular to the crack to the measurement of tunnel crack degree of depth, but tunnel inner wall is mostly arc, but this structure is when in actual use, can't carry out multi-angle to the orientation of probe and adjust and fix, can't guarantee that the probe is perpendicular with the crack, can lead to data to have the error when consequently measuring, consequently inconvenient when using. In view of this, we propose a depth measurement structure of tunnel cracks.

Disclosure of Invention

In order to overcome the defects, the utility model provides a depth measurement structure for tunnel cracks.

The technical scheme of the utility model is as follows:

the utility model provides a depth measurement structure of tunnel crack, includes the bottom plate that is located the bottommost, bottom plate top fixedly connected with U-shaped support, U-shaped support internal rotation is connected with a detection case, be equipped with a follower gear that can follow the rotation of detection case on the outer wall of U-shaped support one side, U-shaped support outer wall is located the follower gear below and is equipped with the spacing pointer that is used for restricting follower gear rotation; the detection box is provided with a detection needle which can extend from the inside of the detection box, the top of one end of the detection needle, which is positioned in the detection box, is fixedly connected with an extension plate, the extension plate extends out of the top of the detection box, the top of the extension plate is provided with a pointing arrow, the detection box is internally provided with a movable groove for the movement of the extension plate, and scale marks are arranged on two sides of the top of the movable groove.

As a preferred technical solution, the graduation values of the two graduation marks are different.

As the preferable technical scheme, the limit pointer comprises an integrally formed inserting arrow and a fixed disc, the limit pointer is rotationally connected with the outer wall of the U-shaped bracket through a hinge shaft, and a fixed bolt fixed with the U-shaped bracket is arranged on the fixed disc.

As the preferable technical scheme, the inner wall of the U-shaped bracket is rotationally connected with a connecting sleeve which is coaxially fixed with the follow-up gear, and the connecting sleeve is fixedly connected with the outer wall of the detection box.

As the preferable technical scheme, the outer wall of the detection needle is positioned below the extension plate and fixedly connected with a driving plate, a movable bin for the driving plate to move is arranged in the detection box, a driving screw rod is rotationally connected to the inner wall of the movable bin, and one end of the driving screw rod extends out of the detection box.

As an optimal technical scheme, one end of the driving screw rod, which is positioned outside the detection box, is coaxially fixed with a knob.

As an optimal technical scheme, universal wheels are arranged at four corners of the bottom plate.

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

according to the utility model, through the rotatable detection box, the follow-up gear and the limiting pointer which can limit the rotation angle of the detection box are arranged, and when the detection box is used, the detection box can be adjusted to more fixable angles, so that the depth of cracks positioned at different positions of the arc-shaped inner wall of a tunnel can be conveniently measured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the partial structure of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view showing the internal structure of the detection box according to the present utility model;

fig. 4 is an enlarged view of fig. 1 at a in the present utility model.

The meaning of each reference numeral in the figures is:

1. a bottom plate; 10. a universal wheel; 2. a U-shaped bracket; 20. a follower gear; 21. limiting pointers; 210. inserting an arrow; 211. a hinge shaft; 212. a fixed plate; 213. a fixing bolt; 22. a connecting sleeve; 3. a detection box; 30. a probe; 300. an extension plate; 301. a driving plate; 31. driving a screw rod; 310. a knob; 32. scale marks; 33. a movable groove; 34. pointing to an arrow; 35. and (5) a movable bin.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution:

the utility model provides a depth measurement structure of tunnel crack, includes bottom plate 1 that is located the bottommost, and bottom plate 1 top fixedly connected with U-shaped support 2, U-shaped support 2 swivelling joint have one detect case 3, be equipped with one on the outer wall of U-shaped support 2 one side and follow up the follower gear 20 that detects case 3 rotation, U-shaped support 2 outer wall is located follower gear 20 below and is equipped with spacing pointer 21 that is used for restricting follower gear 20 rotation; the detection box 3 is provided with a detection needle 30 which can extend from the inside of the detection box, the top of one end of the detection needle 30 positioned in the detection box 3 is fixedly connected with an extension plate 300, the extension plate 300 extends from the top of the detection box 3, the top of the extension plate 300 is provided with a directional arrow 34, the detection box 3 is internally provided with a movable groove 33 for the movement of the extension plate 300, and the two sides of the top of the movable groove 33 are provided with scale marks 32. Through the rotatable detection case 3 that sets up to be provided with follower gear 20 and spacing pointer 21 that can restrict detection case 3 turned angle, when using, can adjust detection case 3 to more angle that can fix, be convenient for measure the degree of depth of the crack that is located tunnel arc inner wall different positions.

Preferably, the graduation values of the two graduation marks 32 are different. More measurement accuracy may be provided for selection.

As a preferred embodiment, the limit pointer 21 includes an integrally formed plugging arrow 210 and a fixed disc 212, the limit pointer 21 is rotatably connected with the outer wall of the U-shaped bracket 2 through a hinge shaft 211, and the fixed disc 212 is provided with a fixing bolt 213 fixed with the U-shaped bracket 2. The position of the fixing plate 212 can be limited by the fixing bolt 213, that is, the position of the inserting arrow 210 can be limited, and it is necessary to supplement that a torsion spring is mounted on the hinge shaft 211, that is, the inserting arrow 210 can not be separated from between two teeth of the follower gear 20 in the process of rotating the follower gear 20, that is, the inserting arrow 210 can still be located between two teeth of the follower gear 20 when the follower gear 20 stops rotating.

As a preferable mode of this embodiment, a connecting sleeve 22 coaxially fixed with the follower gear 20 is rotatably connected to the inner wall of the U-shaped bracket 2, and the connecting sleeve 22 is fixedly connected to the outer wall of the detection box 3. The following relationship of the follower gear 20 and the detection box 3 is achieved by the provision of the connecting sleeve 22.

As a preferred embodiment, a driving plate 301 is fixedly connected to the outer wall of the probe needle 30 below the extension plate 300, a movable cabin 35 for moving the driving plate 301 is provided in the probe box 3, a driving screw 31 is rotatably connected to the inner wall of the movable cabin 35, and one end of the driving screw 31 extends out of the probe box 3. When the probe 30 extends out of the probe box 3, the driving screw rod 31 is rotated, and the driving screw rod 31 drives the driving plate 301 to move in the rotating process, so that the probe 30 is driven to move.

Preferably, in this embodiment, a knob 310 is coaxially fixed to one end of the driving screw 31 outside the detection case 3. The knob 310 is provided to facilitate driving the driving screw rod 31 to rotate, and it should be noted that the detection box 3 may rotate to be vertical.

Preferably, in this embodiment, a universal wheel 10 is installed at four corners of the bottom of the base plate 1. The universal wheel 10 is arranged to facilitate the movement of the device.

When the depth measuring structure of the tunnel crack is used, the device is firstly moved to the position of the tunnel crack, then the detection box 3 is rotated, the detection needle 30 is enabled to vertically point to the crack, then the position of the fixed disc 212 is limited through the fixed bolt 213, the position of the inserting arrow 210 can be limited, the rotation of the follower gear 20 is limited, then the device is moved, the end part of the detection needle 30 is enabled to be parallel to the outer wall of the crack, then the knob 310 is rotated, the driving screw rod 31 is driven to rotate through the knob 310, the detection needle 30 is driven to move through the driving plate 301, the detection needle 30 is inserted into the crack to measure the depth of the crack, and when the detection needle 30 cannot be stretched, the movement length of the detection needle 30, namely the depth of the crack, is observed through the pointing arrow 34 and the scale mark 32.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a depth measurement structure of tunnel crack, is including being located bottom plate (1) of bottommost, its characterized in that: the top of the bottom plate (1) is fixedly connected with a U-shaped support (2), a detection box (3) is rotationally connected to the U-shaped support (2), a follow-up gear (20) capable of rotating along with the detection box (3) is arranged on the outer wall of one side of the U-shaped support (2), and a limit pointer (21) used for limiting rotation of the follow-up gear (20) is arranged below the follow-up gear (20) on the outer wall of the U-shaped support (2); the detection box (3) is provided with a detection needle (30) which can extend from the inside of the detection box, the detection needle (30) is fixedly connected with an extension plate (300) at the top of one end inside the detection box (3), the extension plate (300) extends from the top of the detection box (3), the top of the extension plate (300) is provided with a pointing arrow (34), the detection box (3) is internally provided with a movable groove (33) for the extension plate (300) to move, and scale marks (32) are arranged on two sides of the top of the movable groove (33).

2. The depth measurement structure of a tunnel crack according to claim 1, wherein: the graduation values of the two graduation marks (32) differ.

3. The depth measurement structure of a tunnel crack according to claim 2, wherein: the limiting pointer (21) comprises an integrally formed inserting arrow (210) and a fixed disc (212), the limiting pointer (21) is rotationally connected with the outer wall of the U-shaped bracket (2) through a hinge shaft (211), and a fixing bolt (213) fixed with the U-shaped bracket (2) is arranged on the fixed disc (212).

4. A depth measurement structure of a tunnel crack as claimed in claim 3, wherein: the inner wall of the U-shaped bracket (2) is rotationally connected with a connecting sleeve (22) which is coaxially fixed with the follow-up gear (20), and the connecting sleeve (22) is fixedly connected with the outer wall of the detection box (3).

5. The tunnel crack depth measurement structure according to claim 4, wherein: the detection needle is characterized in that a driving plate (301) is fixedly connected to the outer wall of the detection needle (30) below the extension plate (300), a movable bin (35) for the driving plate (301) to move is arranged in the detection box (3), a driving screw rod (31) is rotatably connected to the inner wall of the movable bin (35), and one end of the driving screw rod (31) extends out of the detection box (3).

6. The tunnel crack depth measurement structure according to claim 5, wherein: one end of the driving screw rod (31) positioned outside the detection box (3) is coaxially fixed with a knob (310).

7. The tunnel crack depth measurement structure according to claim 6, wherein: and universal wheels (10) are arranged at four corners of the bottom plate (1).