Auxiliary device for measuring horizontal displacement of non-exposed inclinometer

Abstract

The utility model discloses an auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer. Comprising an adjusting tripod arranged on a flat surface of a to-be-measured pipe orifice corresponding to a reserved inclinometer pipe orifice, an adjustable bracket mounted at the top of the adjusting tripod, and a portable vertical laser range finder arranged at the top of the adjustable bracket and used for determining the central position of a cable fixing device, and an inclinometer pipe protection cover is arranged at the top of the reserved inclinometer pipe orifice. The device is simple in structure, the reserved inclinometer pipe opening is flush with the flat face of the pipe opening to be measured, the inclinometer pipe protection cover is additionally arranged for protection in the non-measurement state, damage to the inclinometer pipe opening caused by mechanical and human factors in the construction process is avoided, and measuring personnel can conveniently and efficiently collect data.

Description

Technical Field

[0001] The utility model belongs to the technical field of geotechnical engineering monitoring and detection, and particularly relates to an auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer tube. Background Art

[0002] Internal horizontal displacement monitoring is a common monitoring activity in geotechnical engineering. Monitoring data is used to analyze the regularity of horizontal displacement and determine whether the monitored object is functioning normally under factors such as internal and external loads and foundation deformation, thus providing a basis for safe project operation. A common method for monitoring internal horizontal displacement is the sliding inclinometer method. This involves embedding an inclinometer tube within the monitored object. Horizontal displacement of the monitored object causes the tube to deform synchronously. The inclinometer probe measures the angle between the tube axis and the plumb line, combined with the length of the measured segment, to calculate the segmented horizontal displacement of the geotechnical layer at different elevations.

[0003] Inclinometer pipes often need to be buried above ground to a certain height. During measurement, a pipe-end clamp is placed at the hole mouth, and the inclinometer probe is inserted into the pipe and slid inside. This allows the measurement of horizontal displacement changes from the ground to the bottom of the hole. However, when ground construction activities are frequent, the exposed portion of the inclinometer pipe is easily damaged by mechanical equipment. Consequently, the top of the inclinometer pipe often becomes flush with the ground, meaning the pipe is not exposed above ground. This presents several difficulties in horizontal displacement measurement: first, it is difficult to measure the first measuring point on the ground; second, the measurement process requires bending over, which is labor-intensive and inconvenient. Therefore, there is an urgent need to develop an auxiliary device for measuring horizontal displacement of non-exposed inclinometer pipes. Utility Model Content

[0004] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art and provide an auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer pipe. The device has a novel and reasonable design and a simple structure, and can achieve the leveling of the reserved inclinometer pipe opening with the flat surface of the pipe opening to be measured. When the inclinometer pipe is not in the measurement state, a protective cover for the inclinometer pipe is installed to protect it, thereby avoiding damage to the inclinometer pipe opening caused by mechanical and human factors during the construction process, and facilitating the efficient data collection by surveyors, thereby facilitating popularization and use.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer pipe, characterized in that: it includes an adjustment tripod arranged on the flat surface of the reserved inclinometer pipe orifice corresponding to the pipe orifice to be measured, an adjustable bracket installed on the top of the adjustment tripod and a portable vertical laser rangefinder arranged on the top of the adjustable bracket for determining the center position of the cable fixing device, and the top of the reserved inclinometer pipe orifice is provided with an inclinometer pipe protective cover; the adjustable bracket includes a leveling base, a connecting rod and a movable support arranged in sequence from bottom to top, the leveling base includes a lower horizontal calibration ring, an upper horizontal calibration ring and three horizontal adjustment bolts connecting the lower horizontal calibration ring and the upper horizontal calibration ring, three side wings are evenly arranged on the outer side of the lower horizontal calibration ring, and the side wings are all provided with elliptical movable bolt holes; the connecting rod is a metal with a diameter of 8mm to 10mm The movable support comprises an annular support platform, a fixed knob and a universal level bubble, and the fixed knob is used for adjusting and limiting the movable support up and down; the bottom of the portable vertical laser rangefinder is a stepped circular platform that matches the stepped platform of the movable support, and the laser emission point of the portable vertical laser rangefinder is located at the center of the bottom circle. The portable vertical laser rangefinder is used to measure the distance from the movable support to the inclinometer tube orifice and to accurately center the centroid of the inclinometer tube orifice during the installation of the auxiliary device; the upper and lower surfaces of the cable fixing device are three-quarter circles, the upper surface of the cable fixing device is a plane, and the lower surface of the cable fixing device is a stepped circular platform that matches the stepped platform of the movable support. A vertical through-hole is provided in the middle of the cable fixing device to limit the position of the control cable during the inclinometer tube measurement process.

[0006] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer casing is characterized in that: the adjustable tripod includes a mounting platform and three support legs hinged to the bottom of the mounting platform, a vertical hollow circular hole is opened in the middle of the mounting platform, and three bolt holes for fixing the adjustable bracket are evenly distributed around the circular hole of the mounting platform. The support legs are telescopic slide-type support legs, and the slides of the telescopic slide-type support legs are provided with fixing screws that can be loosened or tightened to adjust or fix the length of the support legs. A metal foot is provided at the bottom of the support leg, and the bottom of the metal foot is a conical metal foot.

[0007] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer casing is characterized in that the side wings fix the adjustable bracket on the mounting platform of the adjustable tripod through fixing bolts passing through washers and movable bolt holes.

[0008] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer tube is characterized in that the shell of the Vientiane level bubble is a highly transparent organic glass shell.

[0009] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer casing is characterized in that a circular hole is provided between the leveling base and the movable support, which runs through from top to bottom to facilitate the passage of control cables and laser lines.

[0010] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer tube is characterized in that: the movable bolt hole is elliptical, and the net width of the movable bolt hole is smaller than the outer diameter of the washer and larger than the screw diameter of the fixing bolt. After leveling, the fixing bolt is loosened, and the horizontal position of the leveling base on the mounting platform is fine-tuned so that the light spot of the portable vertical laser rangefinder falls on the cross center of the inclinometer tube protective cover. Then the fixing bolt is tightened and the horizontal adjustment bolt is rotated to center the Vientiane level bubble.

[0011] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer casing is characterized in that: the inclinometer casing protective cover is made of a round, high-strength resin material; the lower surface of the inclinometer casing protective cover closely matches the inner diameter of the inclinometer casing; the upper surface of the inclinometer casing protective cover is engraved with a cross indentation, the center of the cross indentation coincides with the center of the upper surface of the inclinometer casing protective cover, and is used for centering adjustment during the installation of the auxiliary device; when the inclinometer casing protective cover is installed on the inclinometer casing mouth, it protrudes from the ground by 4mm to 6mm, and the center of the cross indentation is recessed downward by 1.5mm to 2.5mm from the upper surface of the inclinometer casing protective cover.

[0012] The above-mentioned auxiliary device for measuring the horizontal displacement of a non-exposed inclinometer pipe is characterized in that one end of the control cable extending into the reserved inclinometer pipe opening is connected to the inclinometer probe, the other end of the control cable is connected to the data acquisition device of the inclinometer, and cable fixing blocks arranged at equal intervals are installed on the control cable.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. The utility model uses an adjustable tripod in conjunction with an adjustable bracket to ensure that the cable fixing device is at the same height at the same measuring hole when measuring under different working conditions, which facilitates the work of the measurement personnel. The tripod and adjustable bracket can be stored and removed at any time without interfering with normal construction. After the measurement is completed, the height of the inclinometer tube protective cover is basically flush with the flat surface of the pipe opening to be measured, which is easier to protect than the traditional exposed inclinometer tube.

[0015] 2. The tripod in this utility model can adjust the length and angle of each support leg so that the installation platform can be located directly above the reserved inclinometer tube opening. This allows for measurement of inclinometer tubes in different environments, and has a wide range of applications, regardless of the flatness of the measurement site.

[0016] 3. The utility model uses a portable vertical laser rangefinder. During the process of setting up a tripod and adjusting the level, centering and height, the distance between the laser rangefinder and the inclinometer cover can be intuitively reflected, so that the distance from the cable fixing device to the hole opening is equal each time the same hole is measured.

[0017] 4. The utility model has a groove on the adjustable bracket that fits with the cable fixing device, which can ensure that the cable is centered during the displacement measurement of the inclinometer tube and reduce measurement errors.

[0018] 5. All parts of the device of this utility model can be disassembled and connected, which is easy to carry. If any part is damaged, it can be disassembled and replaced and then continued to be used. It is simple to operate and easy to store, saving time and effort.

[0019] In summary, the design of the present invention is novel and reasonable. The ±0.00 working surface of the inclinometer is transferred from the concave guide groove of the exposed inclinometer tube mouth to the upper surface of the cable fixing device of the measuring auxiliary device. This can fundamentally avoid the interference of the horizontal displacement detection work due to damage caused by the exposed inclinometer tube mouth during the horizontal displacement detection period. In addition, the auxiliary device is supported by an adjustable tripod, can cope with different environments of the inclinometer tube mouth, is not restricted by the measurement site, and is easy to promote and use.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the utility model in the setting-up and adjustment state;

[0022] Figure 2 This is a schematic diagram of the structure of the adjustable bracket part of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the connection between the adjustable bracket and the adjustable tripod of the utility model;

[0024] Figure 4 It is a schematic diagram of the working state of the utility model.

[0025] Description of the accompanying drawings:

[0026] 1—Flat surface of the pipe to be tested; 2—Adjustable tripod; 2-1—Conical metal foot;

[0027] 2-2—Metal foot; 2-3—Support leg; 2-4—Fixing screw;

[0028] 2-5—Mounting platform; 2-6—Bolt holes; 3—Adjustable bracket;

[0029] 3-1—Leveling base; 3-2—Connecting rod; 3-3—Moveable support;

[0030] 3-4—lower level calibration ring; 3-5—level adjustment bolt; 3-6—movable bolt hole;

[0031] 3-7—Upper level calibration ring; 3-8—Annular support platform; 3-9—Fixed knob;

[0032] 3-10—Vientiane level bubble; 3-11—Steel ball; 3-12—Fixing bolt;

[0033] 3-13—washer; 4—portable vertical laser rangefinder;

[0034] 5—reserved inclinometer tube opening; 6—inclinometer tube protective cover; 7—cable fixing device;

[0035] 8—Inclinometer; 8-1—Data acquisition device; 8-2—Control cable;

[0036] 8-3—Cable fixing block. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the present invention, 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 should fall within the scope of protection of the present invention.

[0038] The utility model transfers the ±0.00 working surface of the inclinometer from the concave guide groove of the exposed inclinometer pipe mouth to the upper surface of the cable fixing device of the measurement auxiliary device, which can fundamentally avoid the interference of the horizontal displacement detection work due to the exposed inclinometer pipe mouth being damaged during the horizontal displacement detection period. The utility model can cope with different environments of the inclinometer pipe mouth, is not restricted by the measurement site, and has strong practicality.

[0039] like Figures 1 to 4As shown, the utility model includes an adjustment tripod 2 arranged on a flat surface 1 of a reserved inclinometer tube orifice 5 corresponding to the tube orifice to be measured, an adjustable bracket 3 installed on the top of the adjustment tripod 2 and a portable vertical laser rangefinder 4 arranged on the top of the adjustable bracket 3 for determining the center position of a cable fixing device 7, and an inclinometer tube protective cover 6 is provided on the top of the reserved inclinometer tube orifice 5; the adjustable bracket 3 includes a leveling base 3-1, a connecting rod 3-2 and a movable support 3-3 arranged in sequence from bottom to top, the leveling base 3-1 includes a lower horizontal calibration ring 3-4, an upper horizontal calibration ring 3-7 and three horizontal adjustment bolts 3-5 connecting the lower horizontal calibration ring 3-4 and the upper horizontal calibration ring 3-7, three side wings are evenly arranged on the outer side of the lower horizontal calibration ring 3-4, and the side wings are all provided with an elliptical movable bolt hole 3-6; the connecting rod 3-2 is a metal rod with a diameter of 8mm to 10mm, and the top of the metal rod is a metal rod with a diameter of not less than 1 2mm fine steel ball 3-11; the movable support 3-3 includes an annular support platform 3-8, a fixed knob 3-9 and a universal level bubble 3-10, and the fixed knob 3-9 is used for adjusting the movable support up and down and limiting the position; the bottom of the portable vertical laser rangefinder 4 is a stepped circular ring platform that matches the stepped platform of the movable support 3-3, and the laser emission point of the portable vertical laser rangefinder 4 is located at the center of the bottom circle. The portable vertical laser rangefinder 4 is used to measure the distance from the movable support to the inclinometer tube orifice and is also used to accurately center the centroid of the inclinometer tube orifice during the installation of auxiliary devices; the upper and lower surfaces of the cable fixing device 7 are three-quarter circles, the upper surface of the cable fixing device 7 is a plane, and the lower surface of the cable fixing device 7 is a stepped circular ring platform that matches the stepped platform of the movable support. A vertical through-hole is opened in the middle of the cable fixing device 7, which is used to limit the position of the control cable 8-2 during the inclinometer tube measurement process.

[0040] It should be noted that the inner wall of the movable support is a groove with several stepped annular steps, and the inner diameter of the groove decreases from top to bottom, which can increase the contact area between the portable vertical laser rangefinder and the cable fixing device and the movable support, and improve the overall stability of the auxiliary device during operation.

[0041] In this embodiment, the adjustable tripod 2 includes a mounting platform 2-5 and three support legs 2-3 hinged to the bottom of the mounting platform 2-5. A vertical hollow circular hole is opened in the middle of the mounting platform 2-5. Three bolt holes 2-6 for fixing the adjustable bracket are evenly distributed around the circular hole of the mounting platform 2-5. The support leg 2-3 is a telescopic slide-type support leg. The slide of the telescopic slide-type support leg is provided with a fixing screw 2-4 that can be loosened or tightened to adjust or fix the length of the support leg. A metal foot 2-2 is provided at the bottom of the support leg 2-3, and the bottom of the metal foot 2-2 is a conical metal base foot 2-1.

[0042] It should be noted that the length and angle of the tripod's support legs can be changed according to the terrain. On the premise of keeping the auxiliary device stable, the installation platform is located directly above the reserved inclinometer pipe opening. A metal step is provided 80mm to 120mm above the conical metal foot at the bottom of the support leg. After adjusting the length and angle of the support leg, the conical metal foot is riveted into the flat surface of the pipe opening to be measured to ensure that the auxiliary device is installed stably.

[0043] The tripod allows for coarse adjustment of the mounting platform height. After the leveling base is leveled, the movable support can be adjusted in height on the connecting rod using a fixed knob. This allows the cable fixture to be precisely adjusted to the desired height based on the reading of the portable vertical laser rangefinder.

[0044] In this embodiment, the side wings fix the adjustable bracket 3 on the mounting platform 2 - 5 of the adjustable tripod 2 through the fixing bolts 3 - 12 passing through the washers 3 - 13 and the movable bolt holes 3 - 6 .

[0045] In this embodiment, the shell of the Vientiane level bubble 3-10 is a highly transparent organic glass shell.

[0046] In this embodiment, there is a circular hole running through the middle of the leveling base 3-1 and the movable support 3-3 from top to bottom, which is convenient for the passage of the control cable 8-2 and the laser line.

[0047] In this embodiment, the movable bolt hole 3-6 is elliptical, and the net width of the movable bolt hole 3-6 is smaller than the outer diameter of the washer and larger than the screw diameter of the fixed bolt 3-12. After leveling, loosen the fixed bolt 3-12, fine-tune the horizontal position of the leveling base on the mounting platform, so that the light spot of the portable vertical laser rangefinder falls on the cross center of the inclinometer tube protective cover, then tighten the fixed bolt 3-12, and rotate the horizontal adjustment bolt 3-5 to center the Vientiane level bubble.

[0048] In this embodiment, the inclinometer tube protective cover 6 is made of a round, pancake-shaped, high-strength resin material. The lower surface of the inclinometer tube protective cover 6 closely matches the inner diameter of the inclinometer tube. The upper surface of the inclinometer tube protective cover 6 is engraved with a cross indentation, the center of which coincides with the center of the upper surface of the inclinometer tube protective cover 6, which is used to assist in centering adjustment during the installation of the device. When the inclinometer tube protective cover 6 is installed on the inclinometer tube orifice, it protrudes from the ground by 4mm to 6mm, and the center of the cross indentation is recessed 1.5mm to 2.5mm downward from the upper surface of the inclinometer tube protective cover.

[0049] In this embodiment, one end of the control cable 8-2 extending into the reserved inclinometer pipe opening 5 is connected to the inclinometer probe, and the other end of the control cable 8-2 is connected to the data acquisition device 8-1 of the inclinometer 8. The control cable 8-2 is installed with cable fixing blocks 8-3 arranged at equal intervals, and the distance between two adjacent cable fixing blocks 8-3 is 50 cm.

[0050] like Figure 1 As shown, the reserved inclinometer pipe opening 5 on the flat surface 1 of the pipe opening to be measured is covered with an inclinometer pipe protective cover 6, and the measurement auxiliary device is set up on top. During the adjustment of the auxiliary device, it consists of three parts: an adjustable tripod 2, an adjustable bracket 3, and a portable vertical laser rangefinder 4. Figure 1 As shown in the figure, first set up the adjustable tripod 2 above the protective cover of the inclinometer tube, and the conical metal base 2-1 of the three legs is in contact with the flat surface 1 of the tube mouth to be measured. The tripod is fixed to the designed height by the fixing screws 2-4 on the tripod legs; then follow the Figure 3 As shown, the adjustable bracket 3 is preliminarily connected to the mounting platform 2-5 of the adjustable tripod using three fixing bolts 3-12 and washers 3-13; then the portable vertical laser rangefinder 4 is installed on the movable support 3-3 of the adjustable bracket 3 as shown in FIG. Figure 1 As shown, after a series of leveling, centering and height adjustment operations on the auxiliary device, the portable vertical laser rangefinder 4 is removed and replaced with the cable fixing device 7; finally, as shown Figure 4 As shown, the control cable 8-2 is connected to the data acquisition device 8-1 and the inclinometer probe, and then data acquisition can be carried out.

[0051] When the utility model is used, the following steps are included:

[0052] Step 1: Bury the inclinometer tube and install the inclinometer tube protective cover:

[0053] An inclinometer tube is buried in the soil of the area to be monitored, the ground around the inclinometer tube opening is cleaned and leveled, the exposed portion of the inclinometer tube is cut off, the top surface of the inclinometer tube is flush with the ground of the area to be measured, and an inclinometer tube protective cover 6 is installed to form a flat surface 2 of the tube opening to be measured;

[0054] Step 2: Set up the adjustable tripod above the inclinometer tube protective cover:

[0055] Loosen the fixing screws 2-4 on the legs of the adjustable tripod so that the conical metal foot 2-1 contacts the flat surface 1 of the pipe to be measured. Lift the upper half of the adjustable tripod so that the top surface of the mounting platform 2-5 is close to chest height. Tighten the fixing screws 2-4 on the supporting legs. Then, spread the three supporting legs of the adjustable tripod and set up the adjustable tripod 2. Ensure that the circular hole in the middle of the mounting platform 2-5 is directly above the inclinometer pipe protective cover 6.

[0056] Step 3: Install the adjustable bracket and portable vertical laser rangefinder:

[0057] Place the adjustable bracket 3 on the mounting platform 2-5 at the top of the adjustable tripod 2. Use a fixing bolt 3-12 to pass through a washer 3-13 and through the movable bolt hole 3-6 at the bottom of the adjustable bracket to secure the adjustable bracket 3 to the mounting platform 2-5 at the top of the adjustable tripod. Place a portable vertical laser rangefinder 4 in the concave guide groove at the top of the adjustable bracket 3.

[0058] Step 4: Preliminary adjustment of auxiliary devices:

[0059] Turn on the portable vertical laser rangefinder 4. Observe the reading while adjusting the angle of the tripod 2 support legs until the portable vertical laser rangefinder reads the first measurement data, and record this reading. Move and adjust the two legs of the tripod 2 so that the laser spot falls on the center of the cross of the inclinometer tube protective cover 6. Step on the metal foot 2-2 at the bottom of the support leg and rivet the conical metal foot 2-1 into the flat surface of the tube to be measured to ensure that the auxiliary device is firmly installed.

[0060] Step 5: Accurately adjust the leveling, centering, and height adjustment auxiliary devices:

[0061] Rotate the horizontal adjustment screw 3-5 at the bottom of the adjustable bracket 3. During the adjustment process, observe the Vientiane level bubble 3-10 to ensure that the bubble in the Vientiane level bubble 3-10 is centered. Observe whether the laser light spot on the inclinometer tube cover 6 is located at the center of the cross. If not, loosen the fixing bolt 3-12 in the movable bolt hole 3-6 at the bottom of the adjustable bracket and fine-tune the horizontal position of the leveling base 3-1 on the mounting platform 2-5 so that the light spot of the portable vertical laser rangefinder 4 falls at the center of the cross of the inclinometer tube protective cover 6. Loosen the fixing knob 3-9 on the adjustable bracket that controls the vertical displacement of the movable support 3-3, and adjust the movable support 3-3 up and down so that the distance between the portable vertical laser rangefinder 4 and the inclinometer tube protective cover 6 is the second measurement data, and record this reading.

[0062] Step 6: Install the inclinometer and collect data:

[0063] Remove the portable vertical laser rangefinder 4 from the adjustable bracket 3, pass the inclinometer control cable 8-2 from bottom to top through the adjustable tripod 2, the adjustable bracket 3 and the cable fixing device 7 and connect it to the data acquisition device 8-1, and fix the cable fixing device 7 in the groove at the top of the adjustable bracket 3; remove the inclinometer tube protective cover 6, lower the inclinometer probe into the inclinometer tube, and measure the horizontal displacement of the inclinometer tube according to the inclinometer operating method.

[0064] The measurement process of the next hole is as follows: Step 1 to Step 6.

[0065] When the movable support 3-3 is adjusted up and down in step five, the distance from the cable fixing device to the hole opening is equal to the height of the last measurement each time the portable vertical laser rangefinder 4 measures the same measuring hole. When the opening angle of the tripod support legs is adjusted in step four, the first measurement data of the portable vertical laser rangefinder 4 is close to the second measurement data, so that when the same inclinometer casing is measured under different working conditions, the distance from the cable fixing device to the hole opening is equal each time the same measuring hole is measured.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing, characterized by: The invention comprises an adjusting tripod (2) arranged on a flat surface (1) of a reserved inclinometer pipe opening (5) corresponding to a pipe opening to be measured, an adjustable bracket (3) installed on the top of the adjusting tripod (2), and a portable vertical laser rangefinder (4) arranged on the top of the adjustable bracket (3) for determining the center position of a cable fixing device (7), wherein an inclinometer pipe protective cover (6) is arranged on the top of the reserved inclinometer pipe opening (5); the adjustable bracket (3) comprises a leveling base (3-1), a connecting rod (3-2), and a connecting rod (3-3) arranged in sequence from bottom to top. 2) and a movable support (3-3), the leveling base (3-1) includes a lower horizontal calibration ring (3-4), an upper horizontal calibration ring (3-7) and three horizontal adjustment bolts (3-5) connecting the lower horizontal calibration ring (3-4) and the upper horizontal calibration ring (3-7), and three side wings are evenly arranged on the outside of the lower horizontal calibration ring (3-4), and the side wings are all provided with elliptical movable bolt holes (3-6); the connecting rod (3-2) is a metal rod with a diameter of 8mm to 10mm, and the top of the metal rod is a diameter of A fine steel ball (3-11) not less than 12 mm; the movable support (3-3) includes an annular support platform (3-8), a fixed knob (3-9) and a Vientiane level bubble (3-10), wherein the fixed knob (3-9) is used for adjusting the movable support up and down and limiting the position; the bottom of the portable vertical laser rangefinder (4) is a stepped circular platform that matches the stepped platform of the movable support (3-3); the laser emission point of the portable vertical laser rangefinder (4) is located at the center of the bottom circle; the portable vertical laser rangefinder (4) It is used to measure the distance from the movable support to the inclinometer tube mouth and to accurately center the centroid of the inclinometer tube mouth during the installation of the auxiliary device; the upper and lower surfaces of the cable fixing device (7) are three-quarter circles, the upper surface of the cable fixing device (7) is a plane, and the lower surface of the cable fixing device (7) is a stepped circular ring platform that fits with the stepped platform of the movable support. A vertical through-hole is opened in the middle of the cable fixing device (7) for limiting the position of the control cable (8-2) during the inclinometer tube measurement process.

2. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 1, characterized in that: The adjustable tripod (2) comprises a mounting platform (2-5) and three supporting legs (2-3) hinged to the bottom of the mounting platform (2-5); a vertical hollow circular hole is opened in the middle of the mounting platform (2-5); three bolt holes (2-6) for fixing the adjustable bracket are evenly distributed around the circular hole of the mounting platform (2-5); the supporting legs (2-3) are telescopic slide-type supporting legs; the slides of the telescopic slide-type supporting legs are provided with fixing screws (2-4) for adjusting or fixing the length of the supporting legs by loosening or tightening; a metal foot (2-2) is provided at the bottom of the supporting legs (2-3); and the bottom of the metal foot (2-2) is a conical metal foot (2-1).

3. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 2, characterized in that: The side wings fix the adjustable bracket (3) on the mounting platform (2-5) of the adjustment tripod (2) through the fixing bolts (3-12) passing through the washers (3-13) and the movable bolt holes (3-6).

4. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 1, characterized in that: The shell of the Vientiane level bubble (3-10) is a highly transparent organic glass shell.

5. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 1, characterized in that: A circular hole is provided between the leveling base (3-1) and the movable support (3-3), which runs through from top to bottom, facilitating the passage of the control cable (8-2) and the laser line.

6. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 3, characterized in that: The movable bolt hole (3-6) is elliptical, and the net width of the movable bolt hole (3-6) is smaller than the outer diameter of the washer and larger than the screw diameter of the fixing bolt (3-12).

7. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 1, characterized in that: The inclinometer tube protective cover (6) is made of a round pancake-shaped high-strength resin material. The lower surface of the inclinometer tube protective cover (6) is closely matched with the inner diameter of the inclinometer tube. The upper surface of the inclinometer tube protective cover (6) is engraved with a cross indentation. The center of the cross indentation coincides with the center of the upper surface of the inclinometer tube protective cover (6) and is used for centering adjustment during the installation of the auxiliary device. When the inclinometer tube protective cover (6) is installed on the inclinometer tube mouth, it protrudes from the ground by 4mm to 6mm, and the center of the cross indentation is recessed by 1.5mm to 2.5mm from the upper surface of the inclinometer tube protective cover.

8. The auxiliary device for measuring horizontal displacement of a non-exposed inclinometer casing according to claim 1, characterized in that: One end of the control cable (8-2) extending into the reserved inclinometer pipe opening (5) is connected to an inclinometer probe, and the other end of the control cable (8-2) is connected to a data acquisition device (8-1) of the inclinometer (8). Cable fixing blocks (8-3) arranged at equal intervals are installed on the control cable (8-2).

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