Portable shield tunnel measurement rearview orientation device

Abstract

The utility model relates to a portable shield tunnel measurement rearview orienting device which comprises a sleeve, the sleeve is of a straight cup-shaped body structure, a strong magnet is fixedly arranged at the inner bottom of the sleeve, and a prism connecting device is fixedly arranged on the side surface of the sleeve and close to the bottom of the sleeve; the device is firmly adsorbed on a bolt for connection between tunnel segments through the strong magnet in the sleeve, is convenient and fast to mount and dismount, does not damage the structure and beauty of the tunnel segments, is simple in structure, is easy to process and manufacture, can be repeatedly used, and is very convenient to use on the premise that the measurement precision is ensured when the device is put into use. And the construction progress is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to shield tunnel measurement technical field, concretely to a portable shield tunnel measurement rear view orientation device. BACKGROUND

[0002] In the shield tunnel construction process, the measurement plays an important role to the advancing direction of shield machine, and the measurement personnel must measure, review and check the tunneling posture of shield machine and shield body posture in time, and the prior art is to punch the hole on the side wall of shield tunnel and install the support device, then set up the prism on the support device, the whole process is very complicated, time -consuming and labor -intensive, and the hole is punched on the side wall segment of shield tunnel, which also destroys the structure and the appearance of segment, therefore, a shield tunnel measurement rear view orientation device which is simple in structure, easy to process and manufacture and convenient to install and disassemble is required. SUMMARY

[0003] In view of the deficiency of prior art, the utility model provides a portable shield tunnel measurement rear view orientation device, including sleeve, the sleeve is straight cup -like body structure, the inner bottom of sleeve is fixedly provided with strong magnet, the side surface of sleeve and close to its bottom position is fixedly provided with prism connecting device.

[0004] Further, the inner bottom of the sleeve is provided with a circular groove, and the strong magnet is arranged in the circular groove.

[0005] Further, the depth of the circular groove is equal to the thickness of the strong magnet.

[0006] Further, the strong magnet is a neodymium iron boron magnet.

[0007] Further, the prism connecting device includes a connecting rod connected to the sleeve at one end and a Leica head fixedly connected to the other end of the connecting rod.

[0008] Further, the inner wall of the sleeve is circular or hexagonal.

[0009] Further, the outer bottom of the sleeve is fixedly provided with a pull ring.

[0010] Further, the sleeve, the prism connecting device and the pull ring are made of stainless steel.

[0011] The utility model has the advantages that:

[0012] The strong magnet in the sleeve firmly adsorbs the device on the bolt connecting the tunnel segments, which is convenient and time-saving to install and disassemble, and does not damage the structure and appearance of the tunnel segments, and the device is simple in structure, easy to process and manufacture, and can be reused, which improves the construction progress under the premise of ensuring the measurement accuracy. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is the left view of the present invention;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This is a cross-sectional view of the sleeve of this utility model;

[0017] Figure 5 This is a front view of the sleeve of this utility model when the interior is hexagonal;

[0018] In the diagram: 1. Sleeve; 11. Circular groove; 2. Strong magnet; 3. Prism connecting device; 31. Connecting rod; 32. Leica head; 4. Pull ring. Detailed Implementation

[0019] Example 1, as Figures 1-5 As shown, a portable shield tunnel measurement back-view orientation device includes a sleeve 1, which is a straight cup-shaped structure. A strong magnet 2 is fixedly installed at the bottom of the inner side of the sleeve 1, and a prism connecting device 3 is fixedly installed on the side surface of the sleeve 1 near its bottom.

[0020] In this embodiment, the inner bottom of the sleeve 1 is provided with a circular groove 11, and the strong magnet 2 is disposed in the circular groove 11; the depth of the circular groove 11 is equal to the thickness of the strong magnet 2.

[0021] In this embodiment, the strong magnet 2 is a neodymium iron boron strong magnet, which makes the strong magnet 2 and the bolt head connecting the tunnel segment have a greater attraction effect, thus improving the overall stability.

[0022] In this embodiment, the prism connecting device 3 includes a connecting rod 31 connected to the sleeve 1 at one end and a Leica head 32 fixedly connected to the other end of the connecting rod 31. The length of the connecting rod 31 can be determined according to the on-site construction environment, on the premise of not affecting the on-site construction operation and ensuring the normal progress of the measurement work.

[0023] In the embodiment, the inner wall of the sleeve 1 is circular or hexagonal, when the inner wall of the sleeve 1 is circular, the diameter of the inner wall of the sleeve 1 should be equivalent to the maximum outer diameter of the nut on the bolt connected between the tunnel segments, when the strong magnet 2 in the sleeve 1 is adsorbed on the bolt head, the sleeve 1 can rotate around the nut to adjust the vertical position of the prism installed on the Leica head 32, when the inner wall of the sleeve 1 is hexagonal, the inner wall of the sleeve 1 needs to be matched with the nut when the strong magnet 2 in the sleeve 1 is adsorbed on the bolt head, therefore, when the inner wall of the sleeve 1 is hexagonal, the device can be better fixed on the bolt connected between the tunnel segments, but the adjustment of the vertical position angle of the prism is limited to a certain extent.

[0024] In the embodiment, the outer bottom of the sleeve 1 is fixedly provided with a pull ring 4, and the device can be easily disassembled by means of the pull ring 4 when disassembly is required.

[0025] In the embodiment, the sleeve 1, the prism connecting device 3 and the pull ring 4 are made of stainless steel material, and the stainless steel material will not rust in a humid environment of a tunnel, prolonging the service life and highlighting the reusability, and it should be noted that the sleeve 1 is made of martensitic stainless steel material, and the characteristic is that the sleeve 1 can be adsorbed with the strong magnet 2.

[0026] The use method of the utility model is:

[0027] The strong magnet 2 in the sleeve 1 of the device is adsorbed on the bolt head connected between the tunnel side wall segments, then the measuring prism is installed on the Leica head 32, the measuring prism is rotated to align the total station of the survey station, and the measurement work can be started, when the whole measurement work of the project is completed, the device can be disassembled, the worker can climb by means of a ladder and other climbing tools, and the device can be disassembled from the tunnel side wall by means of the pull ring 4 and force, and the device can be stored.

[0028] The specific embodiments described above further illustrate the purpose, technical scheme and beneficial effects of the application, and it should be understood that the above description is only a specific embodiment of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A portable shield tunnel survey rear view orientation device, characterized by: The application relates to a sleeve (1) which is a straight cup-shaped structure, the inner bottom of the sleeve (1) is fixedly provided with a strong magnet (2), and the side surface of the sleeve (1) and the position close to the bottom thereof are fixedly provided with a prism connecting device (3).

2. The portable shield tunnel surveying rear view orientation device according to claim 1, characterized in that: The inner bottom of the sleeve (1) is provided with a circular groove (11), and the strong magnet (2) is arranged in the circular groove (11).

3. A portable shield tunnel surveying rear view orientation device according to claim 2, wherein: The depth of the circular groove (11) is equal to the thickness of the strong magnet (2).

4. The portable shield tunnel surveying rear view orientation device according to claim 3, wherein: The strong magnet (2) is a neodymium-iron-boron strong magnet.

5. The portable shield tunnel surveying rear view orientation device according to claim 1, wherein: The prism connecting device (3) comprises a connecting rod (31) connected with the sleeve (1) at one end and a Leica head (32) fixedly connected with the other end of the connecting rod (31).

6. The portable shield tunnel surveying rear view orientation device according to claim 1, wherein: The inner wall of the sleeve (1) is circular or internally hexagonal.

7. The portable shield tunnel surveying rear view orientation device according to claim 1, wherein: The outer bottom of the sleeve (1) is fixedly provided with a pull ring (4).

8. The portable shield tunnel surveying rear view orientation device according to claim 7, characterized in that: The sleeve (1), the prism connecting device (3) and the pull ring (4) are made of stainless steel.

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