Continuous clearance measurement device for underground pipe gallery

Abstract

The utility model relates to the technical field of engineering measurement, and in particular to a clearance continuous measurement device for underground pipe gallery, comprising a centering rod, which is a telescopic sleeve rod, and rollers are respectively arranged at the two ends of the centering rod; a distance meter and a circular level are respectively arranged in the middle of the centering rod. The utility model enables the device to move horizontally or vertically by arranging a freely telescopic centering rod, universal wheels at both ends of the centering rod, and the assistance of horizontal and vertical circular levels, so as to achieve the effect of continuously measuring the clearance height, thereby improving work efficiency and measurement accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering measurement, in particular to a clearance continuous measurement device for underground pipe galleries. Background Art

[0002] With the continuous development of my country's economy and the gradual increase in the scale of urbanization, the development and utilization of underground space has become an important direction of urban construction. In cities, there are not only dense surface buildings, but also more and more underground pipe corridors. The clearance height of underground pipe corridors needs to meet the technical specifications, and also consider the convenience of workers' operation and later management and maintenance.

[0003] When measuring the clearance height of underground pipe corridors, the most commonly used method is to use a laser rangefinder. On-site workers use a handheld rangefinder to perform multi-point intermittent distance measurements in an area. The minimum value of multiple measurements is the default clearance height of the underground pipe corridor. Although this method is simple, the surface of the inner wall of the underground pipe corridor or the surface of the supporting template may be uneven in the underground pipe corridor, which will cause the intermittent point measurement to be unrepresentative and the measurement results to have certain errors, resulting in inaccurate measurement accuracy. Therefore, a detection device with more accurate measurement accuracy and continuous measurement is urgently needed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a clearance continuous measuring device for underground pipe gallery, so as to achieve the technical effect of freely moving and retracting when measuring the clearance height, reducing workload, improving work efficiency and ensuring the continuity of measurement data.

[0005] To achieve this technical purpose, the utility model adopts the following scheme:

[0006] A clearance continuous measuring device for an underground pipe gallery comprises a centering rod which is a telescopic sleeve rod. Two ends of the centering rod are respectively provided with rollers. A distance meter and a circular level are respectively provided in the middle of the centering rod.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] The utility model provides a freely retractable centering rod, universal wheels at both ends of the centering rod and the assistance of horizontal and vertical circular levels, so that the device can move horizontally or vertically to achieve the effect of continuously measuring the clearance height, thereby improving work efficiency and measurement accuracy.

[0009] Further, the preferred embodiment of the present invention is:

[0010] The telescopic sleeve rod comprises a sleeve and a sleeve rod, the upper end of the sleeve rod is provided with a roller, the lower end of the sleeve rod is inserted through the upper end of the sleeve and is slidably connected with the sleeve; the lower end of the sleeve is provided with a roller.

[0011] A spring is arranged between the inside of the sleeve and the sleeve rod; a damping adjustment piece is arranged at the end where the sleeve and the sleeve rod are connected, and the damping adjustment piece contacts the surface of the sleeve rod.

[0012] The surface of the sleeve rod is provided with scales, the top end of the roller on the sleeve rod is the 0 scale, and the scales increase evenly toward the sleeve pipe direction.

[0013] The damping adjustment member includes a sleeve and an adjustment bolt. The sleeve is fixed to the end of the sleeve. A threaded hole is opened on the side wall of the sleeve. The adjustment bolt penetrates the sleeve and contacts the surface of the sleeve rod. The adjustment bolt is threadedly connected to the sleeve through the threaded hole.

[0014] A width range finder is arranged on the outer wall of the sleeve through a fixture.

[0015] A transverse circular level and a longitudinal circular level are respectively arranged on the outer wall of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 for Figure 1 Left view of

[0018] Figure 3 This is a schematic diagram of the installation position of the horizontal circular level;

[0019] Figure 4 This is a schematic diagram of the installation of the fixture and the width range finder;

[0020] The markings in the figure are: sleeve 1; sleeve rod 2; roller 3; sleeve 4; adjusting bolt 5; horizontal circular level 6; vertical circular level 7; clamp 8; U-shaped frame 81; clamp 82; top screw 83; width distance meter 9; spring 10; width distance meter 11. DETAILED DESCRIPTION

[0021] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0022] like Figures 1 to 4 As shown, a net space continuous measuring device for an underground pipe gallery includes a centering rod, which is composed of a casing 1 and a casing rod 2. A roller 3 is installed at the upper end of the casing rod 2. The lower end of the casing rod 2 penetrates into the upper end of the casing 1 and is slidably connected to the casing 1. A spring 10 is arranged inside the casing 1, one end of the spring 10 is fixedly connected to the lower end of the casing 1, and the other end of the spring 10 is fixedly connected to the lower end of the casing rod 2; a roller 3 is installed at the lower end of the casing 1.

[0023] A damping adjustment member is installed at the upper end of the sleeve 1, and the damping adjustment member consists of a sleeve 4 and an adjusting bolt 5; the sleeve 4 is fixed to the upper end of the sleeve 1, and a threaded hole adapted to the adjusting bolt 5 is opened on the side wall of the sleeve 4. The adjusting bolt 5 passes through the threaded hole and contacts the surface of the sleeve rod 2 to increase the friction between the sleeve rod 2 and the sleeve rod 2.

[0024] In this embodiment, the distance between the lower surface of the roller 3 at the lower end of the sleeve 1 and the upper end surface of the sleeve 4 is a fixed length, the surface of the sleeve rod 2 is evenly provided with scales, and the upper surface of the roller 3 at the top of the sleeve rod 2 is 0 scale. Specifically, when setting the scale, determine the distance between the top surface of the roller 3 and the starting scale on the sleeve rod 2. For example, if the distance between the top surface of the roller 3 and the starting scale on the sleeve rod 2 is 10 cm, then the starting scale on the sleeve rod 2 is 10 cm, and the scale value increases evenly from the upper end of the sleeve rod 2 toward the sleeve 4.

[0025] A fixture 8 is provided on each side of the outer wall of the sleeve 1, and a width rangefinder 9 is installed in each fixture 8, and the two width rangefinders 9 are arranged in opposite directions. The specific structure of the fixture 8 is composed of a U-shaped frame 81, a clamping plate 82 and a top screw 83. A threaded hole threadedly connected to the top screw 83 is provided on the outer vertical plate of the U-shaped frame 81, and the clamping plate 82 is movably connected inside the U-shaped frame 81. The width rangefinder 11 is placed between the clamping plate 82 and the inner vertical plate of the U-shaped frame 81. The clamping plate 82 is pushed by tightening the top screw 83, and the width rangefinder 11 is clamped by the clamping plate 82 and the U-shaped frame 81.

[0026] In this embodiment, a transverse circular level 6 and a longitudinal circular level 7 are respectively installed on the surface of the sleeve 4. When measuring the clearance width, the longitudinal circular level is used to indicate whether the centering rod is in a horizontal state. When measuring the clearance height, the transverse circular level is used to indicate whether the centering rod is in a vertical state.

[0027] When the device can be used to detect the clearance height and flatness of the underground tunnel template, the specific steps are as follows: after the underground tunnel template is supported, before starting the measurement, mark the allowable height error range and the ideal flatness range on the sleeve rod 2 as two highlighted areas respectively; place the device vertically between the top mold and the bottom mold of the underground tunnel, gently turn the adjusting bolt 5 to ensure that the sleeve rod 2 can be extended and retracted under the elastic force of the spring 10, so that the roller 3 at the top of the sleeve rod 2 is pressed tightly against the top mold; then adjust the state of the centering rod according to the transverse circular level 6 to ensure that the centering rod is in a vertical state between the top mold and the bottom mold, and then push the centering rod forward as a whole. During the pushing process, the centering rod can be freely extended and retracted, and the template accuracy of this section is determined according to the centering rod reading area. If the scale at a certain position in this area exceeds the highlighted area, record it and adjust the template according to the numerical value at any time.

[0028] In this embodiment, while measuring the clearance width, two width rangefinders 11 can be used to measure the clearance width, and the data can be directly transmitted to the mobile phone for recording; the centering rod can also be adjusted as a whole to be in a horizontal state, and the state of the centering rod is adjusted by the longitudinal circular level to be in a horizontal state, and then the centering rod is pushed forward as a whole. During the pushing process, the centering rod can be freely extended and retracted, and the template accuracy of this section of the area is determined according to the centering rod reading area, and the highlighted area is recorded, and the template can be adjusted according to the numerical value at any time.

[0029] This device can also be used for the inspection of finished products of underground pipe corridors after the formwork is removed. After the formwork is removed, the allowable error range is marked on the scale of the centering rod, and then the device is placed vertically in the pipe corridor, and the adjusting bolt 5 is gently turned to ensure that the sleeve rod 2 can be extended and retracted under the elastic force of the spring 10, so that the roller 3 at the top of the sleeve rod 2 is pressed tightly against the top mold, and then the state of the centering rod is adjusted according to the transverse circular level to ensure that the centering rod is in a vertical state between the top mold and the bottom mold, and then the centering rod is pushed forward as a whole. During the pushing process, the centering rod can be freely extended and retracted, and the accuracy of the template in this section is determined according to the scale of the reading area of ​​the centering rod. If the scale at a certain position in the area exceeds the highlighted area, it is marked and recorded to provide a basis for the next step of repair and other work.

[0030] The method for measuring the clearance width of the finished underground tunnel is the same as that for the underground tunnel template. It can be measured by two width distance meters, or the centering rod can be set horizontally as a whole, and its levelness can be adjusted and then pushed forward for continuous measurement. The position beyond the highlighted area can be marked and recorded to provide a basis for the next step of repair and other work.

[0031] The device is an integral combination of a horizontal and vertical circular level, a freely retractable centering rod with rollers at both ends, and a width measuring instrument, so as to be able to move horizontally or vertically and continuously measure the clearance height or width, thereby reducing the workload of workers, improving the measurement efficiency, and being able to measure continuously, thereby improving the authenticity and effectiveness of the measurement results.

[0032] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A clearance continuous measuring device for an underground pipe gallery, comprising a centering rod, characterized in that: The centering rod is a telescopic sleeve rod, and rollers are respectively arranged at the two ends of the centering rod; a distance meter and a circular level are respectively arranged in the middle of the centering rod. The centering rod comprises a sleeve and a sleeve rod, and a spring is arranged between the inside of the sleeve and the sleeve rod.

2. The underground pipe gallery clearance continuous measurement device according to claim 1 is characterized in that: The upper end of the sleeve rod is provided with a roller, the lower end of the sleeve rod is inserted into the upper end of the sleeve and is slidably connected with the sleeve; the lower end of the sleeve is provided with a roller.

3. The underground pipe gallery clearance continuous measurement device according to claim 2 is characterized in that: The end where the sleeve is connected to the sleeve rod is provided with a damping adjustment member, and the damping adjustment member is in contact with the surface of the sleeve rod.

4. The underground pipe gallery clearance continuous measurement device according to claim 3 is characterized in that: The surface of the sleeve rod is provided with scales, the top end of the roller on the sleeve rod is the 0 scale, and the scales increase evenly toward the sleeve pipe direction.

5. The underground pipe gallery clearance continuous measurement device according to claim 3 is characterized in that: The damping adjustment member includes a sleeve and an adjustment bolt. The sleeve is fixed to the end of the sleeve. A threaded hole is opened on the side wall of the sleeve. The adjustment bolt penetrates the sleeve and contacts the surface of the sleeve rod. The adjustment bolt is threadedly connected to the sleeve through the threaded hole.

6. The underground pipe gallery clearance continuous measurement device according to claim 1 is characterized in that: A width range finder is arranged on the outer wall of the sleeve through a fixture.

7. The underground pipe gallery clearance continuous measurement device according to claim 5 is characterized in that: A transverse circular level and a longitudinal circular level are respectively arranged on the outer wall of the sleeve.

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