Tunnel center positioning and measuring device

Abstract

The utility model discloses a tunnel center positioning measuring device which comprises a mounting plate, positioning assemblies are arranged on the two sides of the mounting plate, each positioning assembly comprises a storage box mounted on the side face of the mounting plate, two insertion openings are symmetrically formed in the side face of each storage box, a winding cylinder located in each storage box is rotationally mounted on the side face of the mounting plate, and a positioning assembly is arranged on the side face of each winding cylinder. Two positioning belts are wound on the outer side of the winding cylinder, and the winding directions of the two positioning belts are opposite. According to the tunnel center positioning and measuring device, the two fixing belts arranged in one positioning assembly synchronously and reversely move to determine the center position of the tunnel in the height direction, and then the two fixing belts arranged in the other positioning assembly synchronously and reversely move to determine the center position of the tunnel in the width direction. The tunnel central point measuring device facilitates measurement of the tunnel central point, is small and light in overall size, and is convenient for a user to carry and use.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering measurement devices, in particular to a tunnel center positioning measurement device. Background Art

[0002] Tunnel center positioning often involves determining the direction and location of tunnel excavation and construction. It plays a crucial role in the excavation of two opposing tunnel faces and is often used to ensure the correct construction of the tunnels and ensure continuity during opposing construction. However, tunnel center positioning often requires the use of multiple measuring instruments, which is labor-intensive and inefficient. Curving tunnels also require re-measurement of the tunnel center. The bulk and weight of the measuring equipment make carrying the center positioning measurement device inconvenient, making tunnel center positioning measurement time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a tunnel center positioning and measuring device. The center position of the tunnel in height is determined by the synchronous reverse movement of two fixed belts provided in one group of positioning components, and the center position of the tunnel in width is determined by the synchronous reverse movement of two fixed belts in another group of positioning components. The intersection of the height center position and the width center position is the center point of the tunnel. The present device is convenient for measuring the center point of the tunnel, and the overall device is small and light, which is convenient for users to carry and use, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tunnel center positioning and measuring device, comprising a mounting plate, positioning components are provided on both sides of the mounting plate, the positioning components include a storage box installed on the side of the mounting plate, two through-holes are symmetrically opened on the side of the storage box, a winding drum located in the storage box is rotatably installed on the side of the mounting plate, two positioning belts are wrapped around the outside of the winding drum, and the two positioning belts are wound in opposite directions, and the two positioning belts are respectively passed through the two through-holes to the outside, and the angle between the positioning belts in the two groups of positioning components is 90°, and an elastic component is provided on the side of the mounting plate to constrain the rotation of the winding drum.

[0005] As a preferred technical solution of the present invention, the elastic component includes a clockwork spring located in a winding drum, a first fixed plate is fixed to one end of the clockwork spring, a second fixed plate is fixed to the other end of the clockwork spring, a positioning seat for positioning the first fixed plate is fixed to the side of the mounting plate, and a fixing clamping plate for positioning the second fixed plate is fixed to the side of the winding drum.

[0006] As an optimal technical solution of the present invention, a first card slot is opened on the side of the positioning seat, and the first fixed plate at the end of the clockwork spring is clamped in the first card slot; a second card slot is opened on the side of the fixed card plate, and the second fixed plate at the end of the clockwork spring is clamped in the second card slot.

[0007] As a preferred technical solution of the present invention, the ends of the multiple positioning belts are all fixed with positioning rods, and the diameter of the positioning rods is greater than the width of the insertion opening.

[0008] As a preferred technical solution of the present invention, scale lines are provided on the sides of the multiple positioning belts.

[0009] As a preferred technical solution of the present invention, the side of the storage box away from the mounting plate is open, and a sealing cover for sealing the opening is provided on the side of the storage box.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The tunnel center positioning and measuring device of the example of the present utility model determines the center position of the tunnel in height by synchronously moving in opposite directions the two fixed belts provided in one group of positioning components, and then determines the center position of the tunnel in width by synchronously moving in opposite directions the two fixed belts in another group of positioning components. The intersection of the height center position and the width center position is the center point of the tunnel. The device is convenient for measuring the center point of the tunnel, and the overall device is small and light, making it easy for users to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model after the protective cover is removed;

[0014] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0015] In the figure: 1 mounting plate, 2 storage box, 3 winding tube, 4 positioning belt, 5 positioning rod, 6 spring, 61 first fixing plate, 62 second fixing plate, 7 positioning seat, 8 fixing clamping plate, 9 sealing cover. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-3 The utility model provides a technical solution: a tunnel center positioning and measuring device, including a mounting plate 1, positioning components are provided on both sides of the mounting plate 1, one group of positioning components is used to determine the center position of the tunnel height, and the other group of positioning components is used to determine the center position of the tunnel width. The intersection of the center position of the tunnel height and the center position of the tunnel width is the center of the tunnel. This center measurement method is simple and easy to use, and has high accuracy, which is convenient for positioning and measuring the center of the tunnel. The positioning component includes a storage box 2 mounted on the side of the mounting plate 1, and the storage box 2 has two symmetrical insertion openings on the side. A winding drum 3 located in the storage box 2 is rotatably mounted on the side of the mounting plate 1. The side of the mounting plate 1 is opened. An annular groove is provided, and the winding drum 3 is rotatably set in the annular groove. Two positioning belts 4 are wound around the outside of the winding drum 3, and the two positioning belts 4 are wound in opposite directions. The two positioning belts 4 are respectively passed through the two insertion openings to the outside, and the two positioning belts 4 share a winding drum 3 as the central axis. When one of the positioning belts 4 is pulled to rotate, the other positioning belt 4 wrapped on the winding drum 3 rotates synchronously, that is, the two positioning belts 4 released to the outside by the positioning assembly are of the same length, so that the mounting plate 1 is used at the center of the two positioning belts 4. When one of the positioning belts 4 contacts the top of the tunnel and the other positioning belt 4 contacts the bottom of the tunnel, the position of the mounting plate 1 is the center of the tunnel height.

[0018] The angle between the positioning belts 4 in the two groups of positioning components is 90°. If one group of positioning components is used to measure the center position of the tunnel height, the other group is used to measure the center position of the tunnel width. The center position of the tunnel width is measured by the above-mentioned method of measuring the center of the tunnel height, that is, one positioning belt 4 in the other group of positioning components is pulled to contact the side of the tunnel, and then the other positioning belt 4 is made to contact the other side of the tunnel. The center point of the tunnel height and the center point of the tunnel width are both the mounting plate 1. At this time, the position of the mounting plate 1 is the center point of the tunnel. The position coordinates of the mounting plate 1 are detected by the measuring equipment, and then the centers of the two opposite tunnels are compared to see whether they are consistent, to ensure that the two tunnels are effectively connected.

[0019] An elastic component is provided on the side of the mounting plate 1 to constrain the rotation of the winding drum 3. The elastic component includes a clockwork spring 6 located in the winding drum 3, one end of the clockwork spring 6 is fixed to a first fixing plate 61, and the other end of the clockwork spring 6 is fixed to a second fixing plate 62. A positioning seat 7 for positioning the first fixing plate 61 is fixed to the side of the mounting plate 1, and a fixing clamping plate 8 for positioning the second fixing plate 62 is fixed to the side of the winding drum 3. During the rotation of the winding drum 3, the clockwork spring 6 is driven to deform. After the positioning belt 4 loses the external force, the clockwork spring 6 drives the winding drum 3 to rotate and reset, so that the positioning belt 4 released outside can be wound and stored, which is convenient for the use of the measuring device.

[0020] A first slot is provided on the side of the positioning seat 7, and the first fixing plate 61 at the end of the clockwork spring 6 is clamped in the first slot. A second slot is provided on the side of the fixing clamping plate 8, and the second fixing plate 62 at the end of the clockwork spring 6 is clamped in the second slot. The clamping method makes the clockwork spring 6 detachable, which is convenient for disassembly and replacement of the clockwork spring 6.

[0021] The ends of the multiple positioning belts 4 are all fixed with positioning rods 5, and the diameter of the positioning rods 5 is larger than the width of the insertion opening. The positioning rods 5 are used to position the ends of the positioning belts 4 to prevent the positioning belts 4 from being stored in the storage box 2 when the winding drum 3 is rotated and reset by the clockwork spring 6, affecting the use of the measuring device. The sides of the multiple positioning belts 4 are all provided with scale lines, which facilitate personnel to obtain information such as the width and height of the tunnel.

[0022] The side of the storage box 2 away from the mounting plate 1 is open, and a sealing cover 9 is provided on the side of the storage box 2 to seal the opening. The sealing cover 9 is detachable. After removing the sealing cover 9, the components in the storage box 2 can be maintained and replaced, which facilitates the use of the measuring device.

[0023] The undisclosed parts of the present invention are all prior art, and their specific structures, materials and working principles will not be described in detail. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel center positioning and measuring device, comprising a mounting plate (1), characterized in that: Both sides of the mounting plate (1) are provided with positioning components, and the positioning components include a storage box (2) mounted on the side of the mounting plate (1), and two insertion openings are symmetrically provided on the side of the storage box (2). A winding cylinder (3) located in the storage box (2) is rotatably mounted on the side of the mounting plate (1), and two positioning belts (4) are wound around the outside of the winding cylinder (3), and the two positioning belts (4) are wound in opposite directions. The two positioning belts (4) are respectively passed through the two insertion openings to the outside, and the angle between the positioning belts (4) in the two sets of positioning components is 90°. An elastic component for constraining the rotation of the winding cylinder (3) is provided on the side of the mounting plate (1).

2. The tunnel center positioning and measuring device according to claim 1, characterized in that: The elastic component comprises a clockwork spring (6) located in a winding drum (3), a first fixing plate (61) being fixed to one end of the clockwork spring (6), a second fixing plate (62) being fixed to the other end of the clockwork spring (6), a positioning seat (7) for positioning the first fixing plate (61) being fixed to the side of the mounting plate (1), and a fixing clamping plate (8) for positioning the second fixing plate (62) being fixed to the side of the winding drum (3).

3. The tunnel center positioning and measuring device according to claim 2, characterized in that: A first slot is provided on the side of the positioning seat (7), and a first fixing plate (61) at the end of the spring spring (6) is clamped in the first slot. A second slot is provided on the side of the fixing plate (8), and a second fixing plate (62) at the end of the spring spring (6) is clamped in the second slot.

4. The tunnel center positioning and measuring device according to claim 1, characterized in that: The ends of the plurality of positioning belts (4) are all fixed with positioning rods (5), and the diameter of the positioning rods (5) is greater than the width of the insertion opening.

5. The tunnel center positioning and measuring device according to claim 1, characterized in that: The sides of the multiple positioning belts (4) are all provided with scale lines.

6. The tunnel center positioning and measuring device according to claim 1, characterized in that: The side of the storage box (2) away from the mounting plate (1) is open, and a sealing cover (9) is provided on the side of the storage box (2) to seal the opening.

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