Auxiliary positioning device for tunnel

Abstract

The utility model relates to an auxiliary positioning device for a tunnel. The auxiliary positioning device comprises a limiting base, a telescopic rod and an emitter. The telescopic rod is movably connected to the upper end face of the limiting base in a crossed mode so that the telescopic rod can be adjusted to be perpendicular to the limiting base all the time. The emitter is arranged at the top end of the telescopic rod. The method has the beneficial effects that the construction efficiency is improved, the cost is saved, and the manual measurement lofting procedure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit measurement, in particular to an auxiliary positioning device for a tunnel. Background Art

[0002] In the construction process of urban rail transit, only when the accuracy of measurement and installation is guaranteed can the subsequent construction meet the design standards, speed up the construction progress, reduce rework, and lay the foundation for the safe operation of trains. In order to ensure that the cables such as interval cables and leaky cables are laid neatly and prevent the appearance of wavy shapes, it is first necessary to ensure that the brackets are at the same level.

[0003] The current method is: the technicians mark out the rail surface elevation to the tunnel wall, and then use this point to measure and mark upward according to the designed installation elevation, and then use the ink fountain to mark the lines in sections. After the marking is completed, the installers will drill holes according to the bracket spacing. This method requires at least four people to complete, which is costly, and the use of operations such as the guide rail surface elevation point will result in large errors in the guide point section of the curved tunnel section. In the curved section, due to the inconsistent elevations of the two rails, the center elevations of the two rails must be confirmed before the guide point construction can be carried out, which is prone to large errors. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides an auxiliary positioning device for a tunnel, which improves the construction efficiency, saves the cost and reduces the manual setting out and measuring process.

[0005] The utility model solves the above technical problems with the following technical solutions: An auxiliary positioning device for a tunnel includes a limit base, a telescopic rod, and a transmitter;

[0006] The telescopic rod is cross-movably connected to the center point of the limiting base to adjust the telescopic rod to always be perpendicular to the horizontal plane;

[0007] The transmitter is arranged at the top end of the telescopic rod.

[0008] As a further technical solution, a verticality detector for monitoring whether the telescopic rod is perpendicular to a horizontal plane is provided at the lower part of the telescopic rod.

[0009] As a further technical solution, a handle is provided on the upper end surface of the limiting base.

[0010] As a further technical solution, two handles are provided and are symmetrically arranged on both sides of the telescopic rod.

[0011] As a further technical solution, magnetic parts are provided on both sides of the limit base to magnetically fit with the top surface of the rail.

[0012] As a further technical solution, two vertical plates are symmetrically provided on the lower end surface of the limit base, the lower end of the telescopic rod extends out of the lower end surface of the limit base and is located between the two vertical plates, and a first screw is passed through the threaded nail hole on the vertical plate, and the angle of the telescopic rod is adjusted and fixed by rotating the first screw.

[0013] As a further technical solution, a through hole is provided on the limit base for the telescopic rod to pass through, and the vertical plate and the first screw are exposed in the through hole;

[0014] The through hole, the limiting base and the telescopic rod share a vertical center line.

[0015] As a further technical solution, an adjustment hole is penetrated in the width direction of the limit base, so that the telescopic rod passes through the adjustment hole and is inserted into the lower part of the limit base, and a second screw is passed through the limit base and the telescopic rod at the same time to control the left and right swing of the telescopic rod.

[0016] As a further technical solution, the transmitter is a linear laser transmitter.

[0017] As a further technical solution, the left and right ends of the limiting base are provided with magnetic parts, and the magnetic member is embedded in the magnetic part;

[0018] The top surface of the rail contacts the lower end surface of the magnetic part.

[0019] The beneficial effects of the utility model are:

[0020] 1. Wide application range: According to the designed installation height, the height of the linear laser transmitter on the tunnel wall can be adjusted by adjusting the telescopic rod to meet different height requirements; the first screw and the second screw can also be adjusted to meet the situation where the height of the two rails is inconsistent in different curve sections, so that one device can meet the requirements of various environments;

[0021] 2. Improve positioning accuracy: The use of linear laser transmitter reduces the manual measurement and layout process and avoids the errors caused by manual measurement;

[0022] 3. Improve construction efficiency: reduce the construction process of measurement and line drawing;

[0023] 4. Save labor costs: After using this device, only one person is needed to complete the entire work. At the same time, the operation is simple and fast, and the technical requirements for the operator are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of an auxiliary positioning device for a tunnel according to the utility model;

[0025] Figure 2 This is a front structural schematic diagram of an auxiliary positioning device for a tunnel according to the utility model;

[0026] Figure 3 This is a left-side structural schematic diagram of an auxiliary positioning device for a tunnel according to the utility model;

[0027] Figure 4 This is a schematic diagram of the top view of the structure of an auxiliary positioning device for a tunnel according to the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of an auxiliary positioning device for a tunnel according to the utility model when viewed from above;

[0029] Figure 6 This is a partial structural schematic diagram of the lower part of an auxiliary positioning device for a tunnel according to the utility model;

[0030] Figure 7 It is a schematic diagram of the partial structure of the magnetic part of the utility model after being cut away;

[0031] Figure 8 , Fig. 9 They are schematic diagrams of scenarios in which the utility model is used in a tunnel;

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] The limiting base 1, the magnetic part 11, the vertical plate 12, the first screw 13, the through hole 14, the second screw 15, and the nut 16;

[0034] Telescopic rod 2;

[0035] Transmitter 3, bracket 4, straight line 5, magnetic part 6, rail 7, handle 8, verticality detector 9. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0037] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0038] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the utility model, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the utility model obscure. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0039] This embodiment provides an auxiliary positioning device for tunnels to ensure that cables such as section cables and leaky cables are laid neatly to prevent wavy patterns. Figure 1-Figure 6 , Figure 8 , Fig. 9 , specifically including a limit base 1, a telescopic rod 2, and a transmitter 3; the telescopic rod 2 is cross-movably connected to the center point of the limit base 1 to adjust the telescopic rod 2 to always be perpendicular to the horizontal plane, so that the bracket 4 installed on the tunnel wall is at the same height before laying the cable; the transmitter 3 is set at the top of the telescopic rod 2. After turning on the transmitter 3, a straight line 5 parallel to the rail 7 is projected on the tunnel wall, and the operator can install the bracket according to the straight line 5, which is simple, accurate and efficient. Furthermore, the transmitter 3 is a linear laser transmitter, and the telescopic rod 2 is of conventional design, and its height is adjusted upward or downward.

[0040] In a specific implementation manner, see Figure 1 , Figure 2 , Figure 5 , Figure 7 , magnetic parts 6 are provided on both sides of the position limiting base 1 to magnetically fit with the top surface of the rail 7 to prevent the positioning device from tipping over due to the instability of the center; further, in order to protect the magnetic parts 6 and increase their service life and enhance the stability of the connection, magnetic parts 11 are provided on the left and right ends of the position limiting base 1, and the magnetic parts 6 are embedded in the magnetic parts 11; wherein, the top surface of the rail 7 contacts the lower end surface of the magnetic part 11. The magnetic parts 6 are strong magnets.

[0041] In order to facilitate the operator to hold, see Figure 1-Figure 4 , Figure 8 , Fig. 9 The upper end surface of the position limiting base 1 is provided with a handle 8. More specifically, two handles 8 are provided and symmetrically arranged on both sides of the telescopic rod 2. The longitudinal section of the handle 8 is configured as an inverted U shape.

[0042] In a specific implementation manner, see Figure 1-Figure 4 The lower part of the telescopic rod 2 is provided with a verticality detector 9 for monitoring the verticality between the telescopic rod 2 and the horizontal plane, so that the telescopic rod 2 is always kept vertical to the horizontal plane during the operation of the positioning device. In this process, if the telescopic rod 2 is vertical to the horizontal plane, the verticality detector 9 points to the 0 scale. If it is not vertical, the first screw 13 needs to be adjusted until the telescopic rod 2 is vertical to the horizontal plane.

[0043] In a specific implementation manner, see Figure 1-Figure 6 Two vertical plates 12 are symmetrically arranged on the lower end surface of the limit base 1, the lower end of the telescopic rod 2 extends out of the lower end surface of the limit base 1 and is located between the two vertical plates 12, and a first screw 13 is passed through the threaded nail hole on the vertical plate 12, and the first screw 13 is rotated to adjust the angle of the telescopic rod 2 and fix it; more specifically, a through hole 14 is opened on the limit base 1 for the telescopic rod 2 to pass through, and the vertical plate 12 and the first screw 13 are exposed in the through hole 14; wherein, the through hole 14 and the limit base 1 share a vertical center line, and the angle of the telescopic rod 2 is adjusted by the first screw 13, so that the positioning device can adapt to the situation where the two rails 7 have different heights in the curved section.

[0044] For specific operation process, see Figure 1-Figure 6 The limit base 1 is penetrated with an adjustment hole in the width direction, so that the telescopic rod 2 is inserted into the lower part of the limit base 1 after passing through the adjustment hole, and the second screw 15 penetrates the limit base 1 and the telescopic rod 2 at the same time to control the left and right swing of the telescopic rod 2, that is, the through hole 14 is located in the middle of the adjustment hole and is connected thereto. In this process, the second screw 15 also serves as the rotation axis of the telescopic rod 2, and after adjusting the angle between the telescopic rod 2 and the horizontal plane, it is locked and fixed by the nut 16.

[0045] The utility model is achieved in this way:

[0046] 1. Clean the rail surface where the positioning device is to be placed, then place the positioning device on the rail surface, and ensure that both ends of the limit base 1 are adsorbed on the rail surface and completely fit the rail surface;

[0047] 2. Rotate the second screw 15 and observe the verticality detector 9 to ensure that the telescopic ruler remains vertical to the horizontal plane;

[0048] 3. Turn on the linear laser transmitter 3 and check whether its laser line is clear;

[0049] 4. Adjust the telescopic ruler to reach the required positioning height;

[0050] 5. Position on the tunnel wall and carry out subsequent support 4 drilling construction work.

[0051] During the above operation, the installation height is positioned without manual layout, and only one person is needed to complete the whole process; and there is no need for manual marking, which is fast and accurate.

[0052] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] Although the preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An auxiliary positioning device for a tunnel, characterized in that: It comprises a limiting base (1), a telescopic rod (2), and a transmitter (3); The telescopic rod (2) is cross-movably connected to the center point of the limiting base (1) to adjust the telescopic rod (2) to always be perpendicular to the horizontal plane; The transmitter (3) is arranged at the top end of the telescopic rod (2).

2. The auxiliary positioning device for a tunnel according to claim 1, characterized in that: The lower part of the telescopic rod (2) is provided with a verticality detector (9) for monitoring its verticality with the horizontal plane.

3. The auxiliary positioning device for tunnel according to claim 1, characterized in that: A handle (8) is provided on the upper end surface of the position limiting base (1).

4. The auxiliary positioning device for tunnel according to claim 3, characterized in that: The handles (8) are provided in two and are symmetrically arranged on both sides of the telescopic rod (2).

5. The auxiliary positioning device for tunnel according to claim 1, characterized in that: Magnetic parts (6) are provided on both sides of the position limiting base (1) to magnetically fit with the top surface of the steel rail (7).

6. The auxiliary positioning device for tunnel according to claim 2, characterized in that: Two vertical plates (12) are symmetrically arranged on the lower end surface of the limiting base (1); the lower end of the telescopic rod (2) extends out of the lower end surface of the limiting base (1) and is located between the two vertical plates (12); a first screw (13) is passed through a threaded nail hole on the vertical plate (12); and the first screw (13) is rotated to adjust the angle of the telescopic rod (2) and fix it.

7. The auxiliary positioning device for tunnel according to claim 6, characterized in that: The limiting base (1) is provided with a through hole (14) through which the telescopic rod (2) passes, and the vertical plate (12) and the first screw (13) are both exposed in the through hole (14); Wherein, the through hole (14) and the limiting base (1) share a common vertical center line.

8. The auxiliary positioning device for tunnel according to claim 6, characterized in that: An adjustment hole is passed through the limit base (1) in the width direction, so that the telescopic rod (2) is inserted into the lower part of the limit base (1) after passing through the adjustment hole, and a second screw (15) is passed through the limit base (1) and the telescopic rod (2) at the same time to control the swing of the telescopic rod (2) in the left and right directions.

9. The auxiliary positioning device for a tunnel according to claim 1, characterized in that: The transmitter (3) is a linear laser transmitter (3).

10. The auxiliary positioning device for a tunnel according to claim 5, characterized in that: The left and right ends of the limiting base (1) are both provided with magnetic parts (11), and the magnetic member (6) is embedded in the magnetic part (11); The top surface of the steel rail (7) is in contact with the lower end surface of the magnetic part (11).

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