Ground fracture monitoring device

Abstract

The utility model relates to the technical field of crack monitoring, in particular to a ground crack monitoring device which comprises an installation rod, connecting seats are fixedly installed at the two ends of the installation rod, the installation rod stretches across a crack, the bottom ends of the connecting seats are fixedly connected with the ground, and supporting mechanisms are fixedly installed on the bottom faces of the connecting seats. A monitoring mechanism is slidably mounted on the periphery of the mounting rod; the monitoring assembly comprises a sliding seat slidably mounted on the mounting rod, the length value of the sliding seat is larger than the width value of the crack, a positioning assembly is mounted on the sliding seat, a distance measuring assembly is mounted on the positioning assembly, and the positioning assembly is used for enabling the sliding seat to be always located over the crack in the width changing process of the crack. The distance measuring assembly is driven to accurately measure the width value of the crack; compared with the prior art, no matter whether the width change of the crack is symmetrical or not, the sliding seat is always positioned right above the crack, so that the measurement accuracy of the crack width is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of crack monitoring, in particular to a ground crack monitoring device. Background Art

[0002] Ground fissures are cracks or fissures on the surface of the earth, usually caused by crustal movement, earthquakes or geological activities; ground fissures may have an impact on the surrounding environment and human activities, so they need to be paid attention to and concerned.

[0003] The prior art provides a patent document with application number CN202220470372.0, which provides an automatic ground fissure monitoring device, including a positioning rod, a positioning spike and a measuring mechanism, wherein the positioning spike is installed at one end of the bottom of the positioning rod, the measuring mechanism includes two measuring rods, two mutually hinged connecting rods of the same length, a spring and an observation rod, the measuring rod and the observation rod are both vertically installed on the positioning rod, wherein the measuring rod is slidably arranged on the positioning rod, and its sliding direction is consistent with the length direction of the positioning rod, the observation rod is located between the two measuring rods, one end of which passes through the through hole on the positioning rod and is slidably connected to the positioning rod up and down, the two measuring rods are respectively rotatably connected to one end of the connecting rod away from the hinge axis, the hinge axis of the connecting rod is rotatably connected to the observation rod, and a spring is also connected between the two connecting rods, and the expansion and contraction direction of the spring is consistent with the length direction of the positioning rod; fixed-point monitoring of the width of the ground fissure is realized, and the monitoring results are accurate and intuitive.

[0004] However, the monitoring device provided by the above patent still has the following shortcomings during use:

[0005] The positioning rod is fixed on the top surface by positioning spikes, and the positions of the observation rod and the positioning rod in the length direction are relatively unchanged. Therefore, it is only suitable for real-time monitoring of ground cracks with symmetrical width changes. When the ground cracks do not change symmetrically, there is a situation where one observation rod is in contact with the crack wall, while the other observation rod is not in contact with the crack wall on the other side, resulting in inaccurate width measurement results. Utility Model Content

[0006] The purpose of the utility model is to provide a ground fissure monitoring device to solve the problems raised in the above background technology.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A ground fissure monitoring device comprises a mounting rod, both ends of which are fixedly mounted with connecting seats, the mounting rod spans the fissure, the bottom end of the connecting seat is fixedly connected to the ground, a supporting mechanism is fixedly mounted on the bottom surface of the connecting seat, and a monitoring mechanism is slidably mounted on the periphery of the mounting rod;

[0009] The monitoring mechanism comprises a slide seat slidably mounted on the mounting rod, the length of the slide seat is greater than the width of the crack, a positioning assembly is mounted on the slide seat, a distance measuring assembly is mounted on the positioning assembly, the positioning assembly is used to ensure that the slide seat is always directly above the crack during the crack width change process, and drive the distance measuring assembly to accurately measure the crack width;

[0010] A fixing component for fixing the device body on the ground is fixedly installed at the bottom end of the supporting mechanism.

[0011] Furthermore, the positioning assembly includes a second convex plate and a slider, the second convex plate is fixedly installed at the middle position of both sides of the slider, and two sliders are slidably installed on the periphery of the slider, and the two sliders are symmetrically distributed about the second convex plate in the length direction of the slider;

[0012] The first convex plates are fixedly mounted on the sides of the slider corresponding to the two second convex plates, and a spring is fixedly connected between the first convex plates and the second convex plates at the corresponding positions; in the non-monitoring state, the spring limits the slider at the corresponding end position of the slide seat;

[0013] A measuring rod is fixedly connected to the center of the bottom surface of the sliding block. In the monitoring state, the measuring rod extends into the crack. Under the elastic force of the spring, the two measuring rods are respectively pressed and contacted with the two sides of the crack.

[0014] Furthermore, the distance measuring assembly includes a baffle and a laser distance meter, wherein the baffle is fixedly mounted on the top surface of one of the sliders, and the laser distance meter is fixedly mounted on the top surface of another slider, and the laser distance meter is aligned with the baffle.

[0015] Furthermore, the support mechanism includes an insertion rod fixedly mounted on the top surface of the connecting seat, the bottom end of the insertion rod is slidably sleeved with a hollow column, and the bottom end of the hollow column is fixedly mounted with the fixing assembly;

[0016] A locking bolt is threadedly installed on the periphery of the hollow column near its top, and a locking groove used in conjunction with the locking bolt is provided on the periphery of the insertion rod along its axial direction.

[0017] Furthermore, the fixing assembly includes a base fixedly mounted on the bottom end of the hollow column, and a plurality of positioning cones are slidably mounted on the top surface of the base.

[0018] Furthermore, a level is fixedly installed at the middle position of the top surface of the slide.

[0019] Beneficial effects of the utility model:

[0020] 1. During the monitoring process of the utility model, when the width of the crack changes, under the elastic force of the spring, the two measuring rods will always be in squeeze contact with the two sides of the crack, and drive the slide seat to be located directly above the crack in real time. At the same time, the two sliders will also slide on the slide seat in a corresponding manner, so that the distance between the baffle and the laser rangefinder changes in real time, thereby completing the real-time monitoring function of the crack width; compared with the prior art, regardless of whether the width change of the crack is symmetrical, the two measuring rods can always be close to the two sides of the crack, thereby ensuring the accuracy of the measurement of the crack width.

[0021] 2. The insertion rods and locking bolts in the two sets of supporting mechanisms can be telescopically adjusted according to the height difference of the ground on both sides of the crack, so that the installation rod can be adjusted to a horizontal state, thereby ensuring that the measuring rod can be vertically extended into the crack; the arrangement of the insertion rod, locking bolts and hollow columns in the supporting mechanism improves the adaptability of the utility model to the flatness of the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 yes Figure 1 A top view of

[0025] Figure 3 yes Figure 1 A magnified view of part A;

[0026] Figure 4 It is a structural schematic diagram of the support mechanism of the utility model when it is installed on an uneven ground;

[0027] The reference numerals are as follows:

[0028] 1-mounting rod, 2-connecting seat, 3-sliding seat, 4-baffle, 5-sliding block, 6-level, 7-laser rangefinder, 8-first convex plate, 9-measuring rod, 10-second convex plate, 11-spring, 12-insertion rod, 13-locking bolt, 14-hollow column, 15-base, 16-support mechanism, 17-crack, 18-ground, 19-positioning cone. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1:

[0031] See also Figure 1 and Figure 2 In an embodiment of the utility model, a ground fissure monitoring device includes a mounting rod 1, both ends of the mounting rod 1 are fixedly mounted with a connecting seat 2, the mounting rod 1 spans the fissure 17, the bottom end of the connecting seat 2 is fixedly connected to the ground 18, a supporting mechanism 16 is fixedly mounted on the bottom surface of the connecting seat 2, and a monitoring mechanism is slidably mounted on the periphery of the mounting rod 1;

[0032] The monitoring mechanism includes a slide 3 slidably mounted on the mounting rod 1, the length of the slide 3 is greater than the width of the crack 17, a positioning assembly is mounted on the slide 3, and a distance measuring assembly is mounted on the positioning assembly, the positioning assembly is used to make the slide 3 always be directly above the crack 17 during the change of the width of the crack 17, and drive the distance measuring assembly to accurately measure the width of the crack 17;

[0033] A fixing component for fixing the device body on the ground 18 is fixedly installed at the bottom end of the support mechanism 16 .

[0034] The positioning assembly includes a second convex plate 10 and a slider 5. The second convex plate 10 is fixedly installed at the middle position of both sides of the slide seat 3, and two sliders 5 are slidably installed on the periphery of the slide seat 3. The two sliders 5 are symmetrically distributed about the second convex plate 10 in the length direction of the slide seat 3.

[0035] The first convex plates 8 are fixedly mounted on the sides of the slider 5 corresponding to the two second convex plates 10, and a spring 11 is fixedly connected between the first convex plate 8 and the second convex plates 10 at the corresponding positions; in the non-monitoring state, the spring 11 limits the slider 5 at the corresponding end position of the slide seat 3;

[0036] A measuring rod 9 is fixedly connected to the center of the bottom surface of the slider 5. In the monitoring state, the measuring rod 9 extends into the crack 17. Under the elastic force of the spring 11, the two measuring rods 9 are respectively squeezed and contacted with the two sides of the crack 17.

[0037] The distance measuring assembly includes a baffle 4 and a laser distance meter 7 . The baffle 4 is fixedly mounted on the top surface of one slider 5 , and the laser distance meter 7 is fixedly mounted on the top surface of another slider 5 . The laser distance meter 7 is aligned with the baffle 4 .

[0038] When the utility model is in use:

[0039] The device is fixedly installed on the ground 18, and the mounting rod 1 is made to span the crack 17; then the two sliders 5 are slid close to each other on the slide 3, so that the distance between the two measuring rods 9 is smaller than the width of the crack 17, so that the measuring rod 9 can extend into the crack 17; then the two sliders 5 are released, and at this time, under the elastic force of the spring 11, the slider 5 will reset and slide on the slide 3 until the two measuring rods 9 are respectively pressed and contacted with the two sides of the crack 17; at the same time, the squeezing force on both sides of the second convex plate 10 is the same, so as to drive the slide 3 to slide and adjust on the mounting rod 1, so that the slide 3 is located directly above the crack 17; in the distance measuring component, the laser rangefinder 7 emits a laser to the baffle 4 to complete the measurement of the width of the crack 17;

[0040] During the monitoring process, when the width of the crack 17 changes, under the elastic force of the spring 11, the two measuring rods 9 will always be in contact with the two sides of the crack 17, and drive the slide 3 to be located directly above the crack 17 in real time. At the same time, the two sliders 5 will also slide on the slide 3 in a corresponding manner, so that the distance between the baffle 4 and the laser rangefinder 7 changes in real time, thereby completing the real-time monitoring function of the width of the crack 17;

[0041] Compared with the prior art, no matter whether the width variation of the crack 17 is symmetrical or not, the two measuring rods 9 can always be close to the two sides of the crack 17 , thereby ensuring the accuracy of measuring the width of the crack 17 .

[0042] Embodiment 2:

[0043] See also Figure 1 , Figure 3 and Figure 4 On the basis of Example 1, the support mechanism 16 includes an insertion rod 12 fixedly mounted on the top surface of the connecting seat 2, a hollow column 14 is slidably sleeved at the bottom end of the insertion rod 12, and a fixing component is fixedly mounted at the bottom end of the hollow column 14;

[0044] A locking bolt 13 is threadedly installed on the outer periphery of the hollow column 14 near its top, and a locking groove for use with the locking bolt 13 is provided on the outer periphery of the insertion rod 12 along its axial direction.

[0045] The fixing assembly includes a base 15 fixedly mounted on the bottom end of the hollow column 14 , and a plurality of positioning cones 19 are slidably mounted on the top surface of the base 15 .

[0046] In the support mechanism 16, the positioning cone 19 is inserted into the soil to complete the fixed installation of the device body;

[0047] When the bottom heights of the two sides of the crack 17 are inconsistent, the locking bolts 13 are loosened so that the insertion rod 12 and the hollow column 14 can be telescopically adjusted. At this time, the positioning cones 19 are first inserted into the soil on both sides, and then the insertion rods 12 and the locking bolts 13 in the two sets of support mechanisms 16 are telescopically adjusted according to the height difference of the ground on both sides of the crack 17, so that the installation rod 1 is in a horizontal state, thereby ensuring that the measuring rod 9 can be vertically extended into the crack 17, and then the insertion rod 12 and the hollow column 14 are locked by the locking bolts 13;

[0048] Therefore, the arrangement of the insert rod 12, the locking bolt 13 and the hollow column 14 in the support mechanism 16 improves the adaptability of the present invention to the flatness of the ground, and is more practical.

[0049] Embodiment 3:

[0050] See also Figure 1 and Figure 2 On the basis of Example 1, a level 6 is fixedly installed at the middle position of the top surface of the slide 3.

[0051] The level meter 6 is used in conjunction with the support mechanism 16. When adjusting the horizontal state of the mounting rod 1, the adjustment accuracy of the mounting rod 1 can be improved by observing the level meter 6, thereby further improving the accuracy of the new type of measuring the width of the crack 17.

[0052] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A ground fissure monitoring device, comprising a mounting rod (1), with connecting seats (2) fixedly mounted at both ends of the mounting rod (1), the mounting rod (1) spanning the fissure (17), the bottom end of the connecting seat (2) being fixedly connected to the ground (18), characterized in that: A support mechanism (16) is fixedly mounted on the bottom surface of the connecting seat (2), and a monitoring mechanism is slidably mounted on the periphery of the mounting rod (1); The monitoring mechanism comprises a slide seat (3) slidably mounted on the mounting rod (1), the length of the slide seat (3) being greater than the width of the crack (17), a positioning component being mounted on the slide seat (3), a distance measuring component being mounted on the positioning component, the positioning component being used to ensure that the slide seat (3) is always located directly above the crack (17) during a process in which the width of the crack (17) changes, and to drive the distance measuring component to accurately measure the width of the crack (17); A fixing component for fixing the device body on the ground (18) is fixedly mounted on the bottom end of the support mechanism (16).

2. A ground fissure monitoring device according to claim 1, characterized in that: The positioning assembly comprises a second convex plate (10) and a sliding block (5); the second convex plate (10) is fixedly mounted at the middle position of both sides of the sliding seat (3); and two sliding blocks (5) are slidably mounted on the periphery of the sliding seat (3); the two sliding blocks (5) are symmetrically distributed about the second convex plate (10) in the length direction of the sliding seat (3); A first convex plate (8) is fixedly mounted on the side surfaces of the slider (5) corresponding to the two second convex plates (10), and a spring (11) is fixedly connected between the first convex plate (8) and the second convex plates (10) at corresponding positions; in a non-monitoring state, the spring (11) limits the slider (5) at a corresponding end position of the slide seat (3); A measuring rod (9) is fixedly connected to the center of the bottom surface of the slider (5). In the monitoring state, the measuring rod (9) extends into the crack (17). Under the elastic force of the spring (11), the two measuring rods (9) are respectively pressed and contacted with two sides of the crack (17).

3. A ground fissure monitoring device according to claim 2, characterized in that: The distance measuring assembly comprises a baffle (4) and a laser distance meter (7); the baffle (4) is fixedly mounted on the top surface of one of the sliders (5); the laser distance meter (7) is fixedly mounted on the top surface of another slider (5); and the laser distance meter (7) is aligned with the baffle (4).

4. A ground fissure monitoring device according to claim 1, characterized in that: The support mechanism (16) comprises an insertion rod (12) fixedly mounted on the top surface of the connection seat (2), a hollow column (14) being slidably sleeved on the bottom end of the insertion rod (12), and the fixing component being fixedly mounted on the bottom end of the hollow column (14); A locking bolt (13) is threadedly installed on the periphery of the hollow column (14) near its top end, and a locking slot for use with the locking bolt (13) is provided on the periphery of the insertion rod (12) along its axial direction.

5. A ground fissure monitoring device according to claim 4, characterized in that: The fixing assembly comprises a base (15) fixedly mounted on the bottom end of the hollow column (14), and a plurality of positioning cones (19) are slidably mounted on the top surface of the base (15).

6. A ground fissure monitoring device according to claim 1, characterized in that: A level (6) is fixedly mounted at the middle position of the top surface of the slide seat (3).

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