Micro-motion node instrument base device suitable for dam body slope surface

Abstract

The utility model provides a micro-motion node instrument base device suitable for a dam body slope surface, which belongs to the technical field of geophysical exploration, and comprises a horizontal panel used for placing a micro-motion node instrument; the supporting legs are connected to the lower side of the horizontal panel, the supporting legs are connected to the side, away from the dam body slope, of the horizontal panel, and the supporting legs are used for supporting the horizontal panel; a pull rope is wound on the wire frame, one end of the pull rope is connected with one side, close to the slope surface of the dam body, of the horizontal panel, and the wire frame is arranged on the dam crest. According to the utility model, the micro-motion node instrument which cannot be directly placed on the slope surface of a dam body with a larger gradient can be placed on the horizontal panel, and a placement platform is provided for the micro-motion node instrument through the horizontal panel, so that the problem that the micro-motion node instrument cannot be placed due to the overlarge gradient of part of the dam body is solved, and vibration signals can be effectively transmitted; and the quality of data acquired by the micro-motion node instrument is not influenced, so that micro-motion detection on the dam surface is realized. The base device can be repeatedly used, and is simple in structure and low in cost.

Description

Technical Field

[0001] This utility model belongs to the field of geophysical exploration technology, and more specifically, it relates to a micro-motion node instrument base device suitable for dam slopes. Background Technology

[0002] Micro-motion detection technology is an emerging geophysical exploration technique. It is a natural source surface wave method that mainly uses background noise to obtain velocity structure information in order to find anomalies. It has broad prospects for detecting defects in dams of hydropower and water conservancy projects.

[0003] However, micro-motion detection has encountered difficulties in practical engineering applications such as dam slopes: due to the excessively large slope of some dam slopes, it is impossible to deploy micro-motion nodal instruments on such slopes, making it difficult to obtain the ground velocity structure below the dam slope. Utility Model Content

[0004] The purpose of this utility model is to provide a micro-motion node instrument base device suitable for dam slopes, so as to arrange micro-motion node instruments (also known as micro-motion node seismographs) on dam slopes with large slopes, especially suitable for hardened dam slopes.

[0005] To achieve the above objectives, this utility model provides a micro-motion node base device suitable for dam slopes, comprising:

[0006] The horizontal panel is used to mount the micro-motion node instrument;

[0007] Outriggers, connected to the underside of the horizontal panel and to the side of the horizontal panel away from the dam slope, are used to support the horizontal panel; and,

[0008] A cable frame with a pull rope wound around it, one end of which is connected to the side of the horizontal panel near the slope of the dam, and the cable frame is set on the top of the dam.

[0009] Furthermore, it also includes a fixed pulley base and a fixed pulley connected to the fixed pulley base. The fixed pulley base is used to fix the fixed pulley to the top of the dam. One end of the pull rope is wound around the fixed pulley and then connected to the side of the horizontal panel near the slope of the dam.

[0010] Furthermore, a counterweight is connected to the wire frame.

[0011] Furthermore, the support leg is a retractable structure.

[0012] Furthermore, it also includes a positioning pin. The support leg includes an inner tube and an outer tube that are slidably connected. Along the height direction of the inner tube, a plurality of first pin holes are provided on the inner tube. The outer tube is provided with a second pin hole that engages with the plurality of first pin holes. One end of the positioning pin passes through the first pin hole and the second pin hole to fix the inner tube and the outer tube in place.

[0013] Furthermore, the support leg is provided in two parts, and the two support legs are symmetrically arranged on the lower side of the horizontal panel.

[0014] Furthermore, the support leg is vertically connected to the lower side of the horizontal panel.

[0015] Furthermore, a pull ring is connected to the side of the horizontal panel near the slope of the dam body, and one end of the pull rope is fixedly connected to the pull ring.

[0016] Furthermore, the horizontal panel is provided with a limiting structure to prevent the micro-motion node from slipping off the horizontal panel.

[0017] Furthermore, the limiting structure is a slot provided on the horizontal panel, and the micro-motion node is engaged with the slot.

[0018] Furthermore, the limiting structure is a baffle set on the upper side of the horizontal panel, and the micro-motion node is placed on the side of the baffle close to the slope of the dam body.

[0019] Furthermore, the limiting structure is an anti-slip pattern set on the upper surface of the horizontal panel.

[0020] Compared with the prior art, the present invention has the following technical effects:

[0021] This invention provides a micro-motion nodal instrument base device suitable for dam slopes. In use, a cable frame is fixed to the dam crest, and one end of a rope is connected to one side of a horizontal panel. The horizontal panel is simultaneously secured to the dam slope by support legs. This allows micro-motion nodal instruments, which cannot be directly placed on steep dam slopes, to be placed on the horizontal panel. This invention provides a platform for the micro-motion nodal instrument, solving the problem of placing it on dams with excessively steep slopes. It effectively transmits vibration signals without affecting the data quality acquired by the micro-motion nodal instrument, thus enabling micro-motion detection on the dam surface. Furthermore, the base device is reusable, simple in structure, and low in cost. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the micro-motion node base device for dam slopes in use, provided for an embodiment of this utility model;

[0024] Figure 2 A schematic diagram of the connection between the horizontal panel and the support legs of a micro-motion node base device suitable for dam slopes provided in this embodiment of the present invention;

[0025] Figure 3 for Figure 2 A top-view structural diagram;

[0026] Figure 4 for Figure 2 A side view structural diagram.

[0027] The following are the labeling elements in the figure:

[0028] 1. Wire frame, 2. Fixed pulley, 3. Pull rope, 4. Pull ring, 5. Horizontal panel, 6. Support leg, 7. Fixed pulley base, 8. Micro-motion node, 9. Positioning pin, 601. Inner tube, 602. Outer tube, 6011. First pin hole. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The terminology used in the embodiments of this utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The singular forms “a,” “the,” and “the” used in the embodiments of this utility model and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0033] The terms "first" and "second" are used for descriptive purposes only, to distinguish objects, such as substances, from one another, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. For example, without departing from the scope of the embodiments of this utility model, a first XX can also be referred to as a second XX, and similarly, a second XX can also be referred to as a first XX. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0034] Please see Figures 1-4 The present invention will now describe a micro-motion node base device suitable for dam slopes provided by an embodiment of the present invention.

[0035] In one embodiment of this utility model, a micro-motion node base device suitable for dam slopes includes a horizontal panel 5, support legs 6, and a wire frame 1. The horizontal panel 5 is used to place the micro-motion node 8; the support legs 6 are connected to the lower side of the horizontal panel 5 and are connected to the side of the horizontal panel 5 away from the dam slope, supporting the horizontal panel 5; a pull rope 3 is wound around the wire frame 1, which is used to retract the pull rope 3. One end of the pull rope 3 is connected to the side of the horizontal panel 5 near the dam slope. The wire frame 1 is located on the top of the dam. Figure 1 As shown.

[0036] In this embodiment, the horizontal panel 5 and the support legs 6 are made of rigid materials to ensure that vibrations across various frequency ranges can be effectively transmitted. The pull rope 3 in this embodiment can be steel strand, balancing high rigidity and toughness. The wire frame 1 in this embodiment should have sufficient self-weight to provide adequate tension for the micro-motion node 8 and the base device.

[0037] In this embodiment, a micro-motion node instrument base device suitable for dam slopes is used by first fixing the wire frame 1 on the dam top and connecting one end of the pull rope 3 to one side of the horizontal panel 5. Then, the wire frame 1 is rotated to release the wire. When the pull rope 3 is released to a suitable length, the horizontal panel 5 and the support leg 6 are placed on the dam slope to be detected. At this time, one side of the horizontal panel 5 abuts against the dam slope, and the horizontal panel 5 is approximately horizontal (a slight inclination of the horizontal panel 5 is also acceptable, generally below 15°). The bottom end of the support leg 6 also abuts against the dam slope. By adjusting the length of the pull rope 3, the height of the base device on the dam slope can be adjusted. Due to the large self-weight of the micro-motion node instrument 8, according to force analysis, the micro-motion node instrument 8, together with the base device, can achieve self-stability. The horizontal panel 5 can be initially leveled by the support leg 6, ensuring that the support leg 6 can make close contact with the dam slope. Afterward, the micro-motion node instrument 8 can be placed on the horizontal panel 5 for subsequent exploration work. After the exploration work is completed, rotate the wire frame 1 in the opposite direction to reel in the pull rope 3, and lift up the horizontal panel 5 and the support leg 6 for storage, so that they can be used again next time.

[0038] In this embodiment of the present invention, a micro-motion node instrument base device suitable for dam slopes is used by fixing the wire frame 1 to the top of the dam, connecting one end of the pull rope 3 to one side of the horizontal panel 5, and simultaneously fixing the horizontal panel 5 to the dam slope via support legs 6. This allows the micro-motion node instrument 8, which cannot be directly placed on a dam slope with a large gradient, to be placed on the horizontal panel 5. The base device of this embodiment provides a platform for the micro-motion node instrument 8, solving the problem that some dam slopes are too steep for placing the micro-motion node instrument 8. It can effectively transmit vibration signals without affecting the data quality collected by the micro-motion node instrument 8, thereby realizing micro-motion detection on the dam surface. Furthermore, the base device of this embodiment is reusable, simple in structure, and low in cost.

[0039] Furthermore, the base device in this embodiment also includes a fixed pulley base 7 and a fixed pulley 2 connected to the fixed pulley base 7. The fixed pulley base 7 is used to fix the fixed pulley 2 to the top of the dam. One end of the pull rope 3 is wound around the fixed pulley 2 and then connected to the side of the horizontal panel 5 near the slope of the dam. By adding the fixed pulley 2, the laying and reeling of the pull rope 3 can be well guided, making the laying and reeling of the pull rope 3 smoother and playing a better role in controlling the laying direction.

[0040] Furthermore, in this embodiment, a counterweight is connected to the wire frame 1 to allow the wire frame 1 to be placed more stably on the dam crest. Alternatively, bolts can be used to fix the wire frame 1 to the ground on the dam crest.

[0041] Furthermore, the support leg 6 in this embodiment is a telescopic structure, allowing the base device of this embodiment to adjust the length of the support leg 6 according to the slope of the dam body with different gradients, so that the horizontal panel 5 remains basically horizontal. In use, the length of the support leg 6 can be adjusted so that the horizontal panel 5 is connected to the dam body slope in a nearly horizontal state, while the bottom end of the support leg 6 also abuts against the dam body slope. Furthermore, the base device of this embodiment also includes a positioning pin 9. The support leg 6 includes an inner tube 601 and an outer tube 602 that are slidably connected. Along the height direction of the inner tube 601, a plurality of first pin holes 6011 are provided on the inner tube 601, and a second pin hole is provided on the outer tube 602 that is engaged with the plurality of first pin holes 6011. One end of the positioning pin 9 passes through the first pin hole 6011 and the second pin hole to fix the inner tube 601 and the outer tube 602 together. In use, after pulling the outer tube 602 of the support leg 6 to a suitable position, the second pin hole on the outer tube 602 is aligned with the first pin hole 6011 at a certain height on the inner tube 601. Then, one end of the positioning pin 9 is inserted into both the second pin hole and the first pin hole 6011 at the same time, so that the outer tube 602 will not slide outside the inner tube 601, thereby fixing the support leg 6 to its specific extension length.

[0042] Furthermore, this embodiment provides two support legs 6, symmetrically arranged on the lower side of the horizontal panel 5. These two symmetrical support legs 6 provide more stable support for the horizontal panel 5. Even further, in this embodiment, the support legs 6 are vertically connected to the lower side of the horizontal panel 5. Both the support legs 6 and the horizontal panel 5 can be steel structural components, such as steel pipes, and the support legs 6 can be welded to the lower side of the horizontal panel 5 through simple welding. When the horizontal panel 5 and the support legs 6 are placed on the dam slope, the vertically connected support legs 6 contribute to the stability of the overall structure. In this way, the horizontal panel 5 can be initially leveled using two vertically adjustable-length support legs 6, ensuring that the two support legs 6 can make close contact with the dam slope.

[0043] Furthermore, in this embodiment, a pull ring 4 is connected to the side of the horizontal panel 5 closest to the dam slope, and one end of the pull rope 3 is fixedly connected to the pull ring 4. By providing a pull ring 4 on one side of the horizontal panel 5, it is easier to connect the pull rope 3 to the horizontal panel 5.

[0044] Furthermore, the horizontal panel 5 in this embodiment is provided with a limiting structure to prevent the micro-motion node 8 from slipping off the horizontal panel 5, ensuring that the micro-motion node 8 remains stably positioned on the horizontal panel 5 during the exploration process. Specifically, the limiting structure can be a slot provided on the horizontal panel 5, into which the micro-motion node 8 engages securely, firmly securing it. Alternatively, the limiting structure can be a baffle provided on the upper side of the horizontal panel 5, with the micro-motion node 8 placed on the side of the baffle closer to the dam slope. By blocking the path of the micro-motion node 8's descent, the baffle prevents it from slipping off the horizontal panel 5. Furthermore, the limiting structure can also be an anti-slip pattern on the surface of the horizontal panel 5 to increase its roughness, making it less likely for the micro-motion node 8 to slip off.

[0045] In one specific embodiment, the horizontal panel 5 is a rectangular structure, 250mm long, 200mm wide, and 10mm thick. A fixed pull ring 4 is located at the center of the front end of the horizontal panel 5 for connecting the pull rope 3. The pull rope 3 has a diameter of 2mm. The support leg 6 is a telescopic steel pipe, consisting of an inner tube 601 and an outer tube 602. The inner tube 601 has five adjustable pin holes for adjusting the length of the support leg 6 according to different dam slopes, ensuring the horizontal panel 5 remains basically level. The base device is connected to the pull rope 3 (i.e., steel strand) via the pull ring 4 fixed to the front end of the horizontal panel 5. By controlling the length of the pull rope 3, the position of the base device (micro-motion node instrument) on the dam slope is controlled. The length of the pull rope 3 is adjusted according to the dam height, typically 100m.

[0046] The base device of this embodiment can be used in the following way:

[0047] (1) Measurement and placement: When the micro-motion node instrument 8 is placed on the slope of the dam, the instrument position point is first measured and placed.

[0048] (2) Placement of base device: Move the entire set of base components to the corresponding dam top position, and release the pull rope 3 through the fixed pulley 2 via the wire frame 1 to the predetermined dam slope position.

[0049] (3) Adjustment of base device: Adjust the fixed position of the positioning pin 9 so that the horizontal panel 5 supported by the two legs 6 can remain basically horizontal, and ensure that the bottom of the two legs 6 and the front end of the horizontal panel 5 are in close contact with the slope of the dam. If necessary, quick-hardening concrete can be applied to the contact points between them and the slope of the dam.

[0050] (4) Leveling the node instrument: Place the micro-motion node instrument 8 on the node and carry out normal leveling and arrangement work.

[0051] (5) Base Retrieval: After data collection is completed, the base device can be retrieved for deployment at the next point.

[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A micro-motion node instrument base device suitable for dam slopes, characterized in that, include: The horizontal panel is used to mount the micro-motion node instrument; Outriggers, connected to the underside of the horizontal panel and to the side of the horizontal panel away from the dam slope, are used to support the horizontal panel; and, A cable frame with a pull rope wound around it, one end of which is connected to the side of the horizontal panel near the slope of the dam, and the cable frame is set on the top of the dam.

2. The micro-motion node base device suitable for dam slope as described in claim 1, characterized in that, It also includes a fixed pulley base and a fixed pulley connected to the fixed pulley base. The fixed pulley base is used to fix the fixed pulley to the top of the dam. One end of the pull rope is wound around the fixed pulley and then connected to the side of the horizontal panel near the slope of the dam.

3. The micro-motion node instrument base device suitable for dam slope as described in claim 2, characterized in that, A counterweight is connected to the wire frame.

4. The micro-motion node base device suitable for dam slope as described in claim 2, characterized in that, The outriggers are retractable.

5. A micro-motion node instrument base device suitable for dam slopes as described in claim 4, characterized in that, It also includes a positioning pin. The support leg includes an inner tube and an outer tube that are slidably connected. Along the height direction of the inner tube, a plurality of first pin holes are provided on the inner tube. The outer tube is provided with a second pin hole that is engaged with the plurality of first pin holes. One end of the positioning pin passes through the first pin hole and the second pin hole to fix the inner tube and the outer tube in place.

6. The micro-motion node base device suitable for dam slope as described in claim 5, characterized in that, The support leg is provided in two parts, and the two support legs are symmetrically arranged on the lower side of the horizontal panel.

7. A micro-motion node base device suitable for dam slope as described in claim 4, characterized in that, The support leg is vertically connected to the lower side of the horizontal panel.

8. A micro-motion node base device suitable for dam slope as described in any one of claims 1-7, characterized in that, A pull ring is connected to the side of the horizontal panel closest to the dam slope, and one end of the pull rope is fixedly connected to the pull ring.

9. A micro-motion node base device suitable for dam slope as described in claim 8, characterized in that, The horizontal panel is provided with a limiting structure to prevent the micro-motion node from slipping off the horizontal panel.

10. A micro-motion node base device suitable for dam slope as described in claim 9, characterized in that, The limiting structure is a slot provided on the horizontal panel, and the micro-motion node engages with the slot; or... The limiting structure is a baffle set on the upper side of the horizontal panel, and the micro-motion node is placed on the side of the baffle close to the slope of the dam body; or, The limiting structure is an anti-slip pattern set on the upper surface of the horizontal panel.

Images