Device for improving measurement precision of miniature jacking pipe

Abstract

The utility model discloses a device for improving the measurement precision of a miniature pipe jacking, and relates to the technical field of miniature pipe jacking measurement. The device comprises a pipe jacking machine shell, a pipe jacking panel is arranged on the inner wall of the pipe jacking machine shell, a circular groove is formed in one end of the pipe jacking panel, and a rotating shaft is rotationally connected to the middle of the inner wall of the circular groove; the other end of the rotating shaft is fixedly connected with an adjusting plate, the inner wall of the adjusting plate is fixedly connected with a measuring plate, the inner wall of the measuring plate is fixedly connected with a prism, one end of the adjusting plate is fixedly connected with a first laser target corresponding to the upper portion of the measuring plate, and one end of the adjusting plate is fixedly connected with a second laser target corresponding to the side portion of the measuring plate. Through the structures of the circular groove, the rotating shaft, the balancing weight, the measuring plate, the first laser target, the second laser target, the prism and the like, the effect of improving the measuring precision is achieved, and the problem that the measuring precision is low due to the fact that a laser guide point in a traditional measuring device deviates from the target is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro pipe jacking measurement, and particularly relates to a device for improving the measurement accuracy of micro pipe jacking. Background Technique

[0002] Micro pipe jacking, also known as the secondary pipe jacking method, is a new type of underground pipeline laying technology. Its main feature is that it can achieve trenchless construction, that is, complete the pipeline laying without damaging the ground and above-ground buildings. During the laying process, it is necessary to measure it to prevent deviation during construction.

[0003] Currently, the existing micro pipe jacking pipes are relatively small in size, with an inner diameter of 300 - 600 mm. People cannot enter the pipe to set up measuring instruments for measurement construction, resulting in the problem that the laser guiding points of the laser theodolite deviate and miss the target during the construction and installation of micro pipe jacking, thus leading to low measurement accuracy.

[0004] Therefore, this case proposes a device for improving the measurement accuracy of micro pipe jacking to solve the above technical problems. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a device for improving the measurement accuracy of micro pipe jacking, which can effectively solve the technical problem that the laser guiding points of the laser theodolite deviate and miss the target in the background technique, thus resulting in low measurement accuracy.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A device for improving the measurement accuracy of micro pipe jacking includes the outer shell of the pipe jacking machine. The inner wall of the outer shell of the pipe jacking machine is provided with a pipe jacking panel. One end of the pipe jacking panel is provided with a circular groove. The middle part of the inner wall of the circular groove is rotatably connected with a rotating shaft. The other end of the rotating shaft is fixedly connected with an adjusting plate. The inner wall of the adjusting plate is fixedly connected with a measuring plate. The inner wall of the measuring plate is fixedly connected with a prism. One end of the adjusting plate is fixedly connected with a first laser target above the measuring plate. One end of the adjusting plate is fixedly connected with a second laser target on the side of the measuring plate. The bottom end of the adjusting plate is fixedly connected with a counterweight.

[0008] As a further scheme of the utility model, both sides of the inner wall of the outer shell of the pipe jacking machine are fixedly connected with mounting blocks. One end of each of the two mounting blocks is fixedly connected with a blocking block. Both of the two blocking blocks are fixedly connected with the inner wall of the outer shell of the pipe jacking machine.

[0009] As a further scheme of the utility model, both ends of the two mounting blocks close to each other are provided with telescopic grooves. The inner walls of the two telescopic grooves are both slidably connected with clamping columns.

[0010] As a further solution of the present utility model, springs are fixedly connected to the mutually remote ends of the two clamping posts, and the two springs and the telescopic grooves are fixedly connected.

[0011] As a further solution of the present utility model, mounting grooves that are symmetrically arranged on the outer wall of the pipe jacking panel and are in conformity with the shape of the mounting blocks are provided, and clamping grooves that are in adaptation with the shape of the clamping posts are provided on the two mounting grooves.

[0012] As a further solution of the present utility model, a distance is provided between the counterweight and the circular groove, and scale lines are provided on the measuring plate for observing the offset distance.

[0013] The beneficial effects of the present utility model are as follows:

[0014] Through the mutual cooperation of the circular groove, the rotating shaft, the counterweight, the measuring plate, the first laser target, the second laser target and the prism, it is convenient to observe the offset distance during the installation of the micro pipe jacking and correct it, and through the cooperation of the total station for re-measurement, the measurement accuracy can be improved;

[0015] Through the handle, the clamping post, the telescopic groove, the mounting groove, the mounting block, the blocking block, the spring and the clamping groove, the limit fixation is completed, so that the damaged pipe jacking panel can be replaced in time to ensure subsequent measurement. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a device for improving the measurement accuracy of a micro pipe jacking according to the present utility model;

[0017] Figure 2 It is a sectional view of the pipe jacking machine housing of a device for improving the measurement accuracy of a micro pipe jacking according to the present utility model;

[0018] Figure 3 It is another perspective view of the sectional view of the pipe jacking machine housing of a device for improving the measurement accuracy of a micro pipe jacking according to the present utility model;

[0019] Figure 4 It is a sectional view of the pipe jacking panel of a device for improving the measurement accuracy of a micro pipe jacking according to the present utility model;

[0020] Figure 5 It is a sectional view of the mounting block of a device for improving the measurement accuracy of a micro pipe jacking according to the present utility model.

[0021] In the figure: 1. Pipe jacking machine housing; 2. Pipe jacking panel; 3. Circular groove; 4. Rotating shaft; 5. Adjusting plate; 6. Measuring plate; 7. Prism; 8. First laser target; 9. Second laser target; 10. Counterweight; 11. Mounting block; 12. Blocking block; 13. Telescopic groove; 14. Spring; 15. Clamping post; 16. Mounting groove; 17. Clamping groove. Detailed Embodiments

[0022] To make the technical means, creative features, achieved objectives and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] As Figures 1-5 shown, a device for improving the measurement accuracy of a micro pipe jacking includes a pipe jacking machine housing 1. An inner wall of the pipe jacking machine housing 1 is provided with a pipe jacking panel 2. One end of the pipe jacking panel 2 is provided with a circular groove 3. A middle part of an inner wall of the circular groove 3 is rotatably connected to a rotating shaft 4. The other end of the rotating shaft 4 is fixedly connected to an adjusting plate 5. An inner wall of the adjusting plate 5 is fixedly connected to a measuring plate 6. An inner wall of the measuring plate 6 is fixedly connected to a prism 7. One end of the adjusting plate 5 corresponding to the upper side of the measuring plate 6 is fixedly connected to a first laser target 8. One end of the adjusting plate 5 corresponding to the side of the measuring plate 6 is fixedly connected to a second laser target 9. A bottom end of the adjusting plate 5 is fixedly connected to a counterweight 10.

[0024] In this embodiment, both sides of an inner wall of the pipe jacking machine housing 1 are fixedly connected with mounting blocks 11. One end of each of the two mounting blocks 11 is fixedly connected with a blocking block 12. Both of the two blocking blocks 12 are fixedly connected to the inner wall of the pipe jacking machine housing 1. The blocking blocks 12 can be used for limiting during installation.

[0025] In this embodiment, telescopic grooves 13 are respectively opened at one ends of the two mounting blocks 11 close to each other. A clamping post 15 is slidably connected to an inner wall of each of the two telescopic grooves 13. One end of each of the two clamping posts 15 away from each other is fixedly connected with a spring 14. Both of the two springs 14 are fixedly connected to the telescopic grooves 13;

[0026] The clamping post 15 can be received into the telescopic groove 13, and the elastic resetting effect of the spring 14 can make the clamping post 15 pop out to perform a limiting process on the pipe jacking panel 2.

[0027] In this embodiment, mounting grooves 16 which are symmetrically arranged on an outer wall of the pipe jacking panel 2 and are in a shape matching with that of the mounting blocks 11 are respectively opened. Card slots 17 which are in a shape matching with that of the clamping posts 15 are respectively opened on the two mounting grooves 16;

[0028] The clamping post 15 is stuck in the card slot 17 to complete the limiting and fixing of the pipe jacking panel 2. During installation, the mounting groove 16 corresponds to the mounting block 11 and the pipe jacking panel 2 is stuck on the mounting block 11.

[0029] In this embodiment, there is a distance between the counterweight 10 and the circular groove 3. Scale lines are arranged on the measuring plate 6 for observing the offset distance and avoiding affecting the deflection of the counterweight 10.

[0030] It should be noted that the present utility model is a device for improving the measurement accuracy of a micro pipe jacking. When in use, since the circular groove 3 and the rotating shaft 4 are rotatably connected, and under the action of the gravity of the counterweight 10, the measuring plate 6 can always be in the same position. Therefore, the scale lines on the counterweight 10 can always be in the horizontal and vertical states. And the laser theodolite is turned on to emit laser light that irradiates on the first laser target 8 and the second laser target 9. Therefore, it is convenient to observe the offset distance during the installation of the micro pipe jacking and correct it, thereby preventing the laser guiding point of the laser theodolite from offsetting. And a remeasurement is carried out through the cooperation of the total station and the prism 7, so as to improve the measurement accuracy;

[0031] And the handle can be held by hand and pulled outward to stretch the pipe jacking panel 2. At this time, the clamping column 15 will be squeezed and contracted into the telescopic groove 13. Then the installation groove 16 moves out of the range of the installation block 11, so that the pipe jacking panel 2 can be disassembled. Therefore, the parts on the pipe jacking panel 2 can be replaced after being damaged. When installing a new pipe jacking panel 2, the installation groove 16 and the installation block 11 are made to correspond in position. At this time, the pipe jacking panel 2 is pushed and blocked by the blocking block 12, so that the pipe jacking panel 2 is installed in place. And under the elastic reset action of the spring 14, the clamping column 15 is stuck in the clamping groove 17 to complete the limit fixation. Therefore, the damaged pipe jacking panel 2 can be replaced in time to ensure subsequent measurement.

[0032] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for improving the measurement accuracy of a micro pipe jacking machine, comprising a pipe jacking machine housing (1), characterized in that: The inner wall of the casing (1) of the pipe jacking machine is provided with a pipe jacking panel (2), one end of the pipe jacking panel (2) is provided with a circular groove (3), the middle part of the inner wall of the circular groove (3) is rotatably connected with a rotating shaft (4), the other end of the rotating shaft (4) is fixedly connected with an adjustment plate (5), the inner wall of the adjustment plate (5) is fixedly connected with a measuring plate (6), the inner wall of the measuring plate (6) is fixedly connected with a prism (7), one end of the adjustment plate (5) is fixedly connected with a first laser target (8) corresponding to the upper side of the measuring plate (6), one end of the adjustment plate (5) is fixedly connected with a second laser target (9) corresponding to the side of the measuring plate (6), and the bottom end of the adjustment plate (5) is fixedly connected with a counterweight (10).

2. A device for improving the measurement accuracy of micro-pipe jacking according to claim 1, characterized in that: Both sides of the inner wall of the casing (1) of the pipe jacking machine are fixedly connected with mounting blocks (11), one end of each of the two mounting blocks (11) is fixedly connected with a blocking block (12), and both of the two blocking blocks (12) are fixedly connected to the inner wall of the casing (1) of the pipe jacking machine.

3. A device for improving the measurement accuracy of micro-pipe jacking according to claim 2, characterized in that: The two mounting blocks (11) are each provided with a telescopic groove (13) at one end close to each other, and the inner walls of the two telescopic grooves (13) are both slidably connected with a clamping column (15).

4. A device for improving the measurement accuracy of micro-pipe jacking according to claim 3, characterized in that: The two clamping columns (15) are both fixedly connected to a spring (14) at one end away from each other, and the two springs (14) and the telescopic slot (13) are both fixedly connected.

5. The device for improving the measurement accuracy of micro-pipe jacking according to claim 4, characterized in that: The outer wall of the top tube panel (2) is symmetrically provided with mounting grooves (16) matching the shape of the mounting block (11), and the two mounting grooves (16) are each provided with a clamping groove (17) matching the shape of the clamping column (15).

6. The device for improving the measurement accuracy of micro-pipe jacking according to claim 1, characterized in that: A distance is set between the counterweight block (10) and the circular groove (3), and a scale line is set on the measuring plate (6) for observing the offset distance.

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