A fixing device of an open-pit slope sliding monitoring crack meter
By introducing a combination structure of fixed base and damping rotating disk into the open slope slip monitoring device, the problem of damage to crack needles during monitoring is solved, and the protection of crack needles and the stability of monitoring are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA MOLYBDENUM
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-04
AI Technical Summary
Existing open-pit mine slope surface crack monitoring devices can damage crack needles during detection due to the vertical opening and closing of cracks, thus affecting the monitoring effect.
It adopts a combination structure of fixed base, support rod, guide slide, helical drive rod, damping rotating disk, rotating block, guide slide plate and pressure relief spring. Through the rotation of the damping rotating disk and the push of the helical push rod, the angle of the crack needle can be adjusted and pre-tightened, reducing tensile and shear forces and protecting the crack needle.
It effectively protects crack needles, preventing them from failing or being damaged, and improves the stability and accuracy of monitoring.
Smart Images
Figure CN224593003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of open-pit mine crack monitoring equipment, specifically a fixing device for an open-pit slope slip monitoring crack gauge. Background Technology
[0002] Cracks will appear on the surface of the mine slope due to displacement. In order to ensure the stability of the slope, it is necessary to grasp the trend of crack changes after the cracks are discovered. Ground crack monitoring is an important daily task for subsidence observation and open-pit slope observation in coal mining areas. Observing multiple fine cracks is a complicated and long-term task. When existing crack needles are used for detection, they usually need to be fixed on both sides of the crack with fixed equipment in order to monitor the opening and closing of the crack in a timely and accurate manner.
[0003] For example, patent application number 202422332262.X discloses a monitoring device for surface cracks on open-pit mine slopes. This utility model discloses a monitoring device for surface cracks on open-pit mine slopes, relating to the technical field of open-pit mine crack monitoring equipment. This utility model includes a first steel rod, a second steel rod, and a steel ruler. The first and second steel rods are installed on opposite sides of the surface crack. A pulley and a steel ruler wheel are rotatably mounted on the second steel rod from top to bottom. This utility model has a simple structure, is easy to install, and has low cost. Operators record the crack's changing trend by monitoring changes in the steel ruler's scale through an observation hole. Recording is simple and convenient, meeting daily use requirements. However, when this monitoring device for surface cracks on open-pit mine slopes detects cracks, if the crack opens and closes vertically, the resulting shear stress can damage the crack needle. If this stress is not buffered, it will damage the crack needle, affecting its normal monitoring function.
[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a fixing device for monitoring cracks in open-air slope slippage. Utility Model Content
[0005] The purpose of this invention is to provide a fixing device for a crack gauge for monitoring slippage on open slopes, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing device for a crack gauge used for monitoring slippage on open slopes, comprising a fixing base. A support rod is provided on the upper surface of the fixing base, and a guide groove is formed on the surface of the support rod. A helical drive rod is rotatably mounted on the inner surface of the guide groove, and a guide slider is provided on the outer surface of the helical drive rod. The guide slider is slidably connected to the inner surface of the guide groove. A damping rotating disk is provided on the front surface of the guide slider, and a rotating block is provided on the front surface of the damping rotating disk. A second guide groove is formed on the surface of the rotating block.
[0007] Preferably, a guide slide plate is slidably mounted on the inner surface of the guide slide groove two, and a crack needle fixing sleeve is provided on the inner surface of the guide slide plate one.
[0008] Preferably, a support plate is provided on the right side surface of the rotating block, and a helical push rod is helically installed on the surface of the support plate.
[0009] Preferably, a rotating frame is installed on the outer surface of the end of the spiral push rod, and a guide slide plate is provided on the left side surface of the rotating frame.
[0010] Preferably, the guide slide plate 2 and the guide groove 2 are configured to be slidably connected, and a limit rod is slidably installed through the surface of the guide slide plate 2.
[0011] Preferably, the outer surface of the limiting slide bar is provided with a pressure relief spring, and the left side of the pressure relief spring is fixedly connected to the guide slide plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the arrangement of a fixed base, support rod, guide groove one, screw transmission rod, guide slider one, damping rotating disk, rotating block, guide groove two, guide slide one, and crack needle fixing sleeve, and through the setting of the damping rotating disk, after the crack needle is fixed by the crack needle fixing sleeve, when the crack undergoes vertical deformation, the angle of the crack needle can be adjusted by rotating the damping rotating disk, reducing the vertical tensile and shear forces on the crack needle, protecting the crack needle, and preventing it from failing or being damaged; 2. This utility model, through the setting of a support plate, a spiral push rod, a rotating frame, a guide slide plate, a limiting slide rod, and a pressure relief spring, uses a spiral push rod to drive the crack needle fixing sleeve through a spiral transmission, so that the crack needle can be periodically corrected and pre-tightened; and uses a pressure relief spring to protect the crack needle by elastic deformation when the thrust generated by the spiral push rod is too large. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the damping rotating disc of this utility model; Figure 3 This is a three-dimensional structural diagram of the crack needle fixing sleeve of this utility model; Figure 4 This utility model Figure 3 A schematic diagram of the enlarged structure of A in the middle.
[0014] In the diagram: 1. Fixed base; 101. Support rod; 102. Guide slide groove one; 103. Screw drive rod; 104. Guide slider one; 2. Damping rotating disk; 201. Rotating block; 202. Guide slide groove two; 203. Guide slide plate one; 204. Crack needle fixing sleeve; 3. Support plate; 301. Screw push rod; 302. Rotating frame; 303. Guide slide plate two; 304. Limiting slide rod; 305. Pressure relief spring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] like Figures 1-2 As shown, a fixing device for a crack gauge for monitoring slippage on an open slope includes a fixing base 1. A support rod 101 is provided on the upper surface of the fixing base 1, and a guide groove 102 is provided on the surface of the support rod 101. This technical solution can stably fix the crack gauge by setting the fixing base 1, thereby improving the detection stability of the crack gauge.
[0017] Furthermore, a helical drive rod 103 is rotatably mounted on the inner surface of the guide groove 102, and a guide slider 104 is provided on the outer surface of the helical drive rod 103. The guide slider 104 and the inner surface of the guide groove 102 are slidably connected. In this technical solution, the helical drive rod 103 can drive the crack needle fixing sleeve 204 to move, so that the relative crack needle fixing sleeves 204 remain parallel.
[0018] Furthermore, a damping rotating disk 2 is provided on the front surface of the guide slider 104, and a rotating block 201 is provided on the front surface of the damping rotating disk 2. The surface of the rotating block 201 is provided with a guide groove 202. With this technical solution, after the crack needle is fixed by the crack needle fixing sleeve 204, the angle of the crack needle can be adjusted by rotating the damping rotating disk 2 when the crack undergoes vertical deformation. This reduces the vertical pulling force and shear force on the crack needle, protects the crack needle, and prevents it from failing or being damaged.
[0019] Furthermore, a guide slide plate 203 is slidably installed on the inner surface of the guide slide 202, and a crack needle fixing sleeve 204 is provided on the inner surface of the guide slide plate 203. This technical solution can fix the crack needle by setting the crack needle fixing sleeve 204.
[0020] like Figures 3-4 As shown, a support plate 3 is provided on the right side surface of the rotating block 201, and a spiral push rod 301 is spirally installed on the surface of the support plate 3. With this technical solution, the spiral push rod 301 can push the crack needle fixing sleeve 204 through the spiral transmission, so that the crack needle can be periodically corrected and pre-tightened.
[0021] Furthermore, a rotating frame 302 is installed on the outer surface of the end of the spiral push rod 301, and a guide slide plate 303 is provided on the left side surface of the rotating frame 302. The guide slide plate 303 and the guide groove 202 are slidably connected, and a limit slide rod 304 is slidably installed through the surface of the guide slide plate 303. With this technical solution, the guide slide plate 303 can be moved by the rotating frame 302 without interfering with the rotation of the spiral push rod 301.
[0022] Furthermore, a pressure relief spring 305 is provided on the outer surface of the limiting slide bar 304, and the left side of the pressure relief spring 305 is fixedly connected to the guide slide plate 203. With this technical solution, the pressure relief spring 305 can protect the crack needle by elastic deformation when the thrust generated by the spiral push rod 301 is too large.
[0023] Working principle: When using the fixing device of the crack gauge for monitoring slippage on open slopes, firstly, two support rods 101 with fixing bases 1 are installed parallel to each other on the upper surfaces of both sides of the crack. Then, according to the slope topography, the spiral transmission rod 103 is rotated to drive the guide slider 104 on its outer surface to slide along the guide groove 102, thereby correcting the height of the crack needle fixing sleeve 204 and ensuring that the two fixing sleeves remain relatively parallel. After the height correction is completed, the two ends of the crack needle are respectively inserted into the crack needle fixing sleeve 204. Then, by rotating the spiral push rod 301, the guide slide plate 303 is driven to retract inward, so that the fixing sleeve moves closer to the two ends of the crack needle to achieve angle correction and pre-tightening. Finally, the crack needle is fixed. During crack needle monitoring, if the crack shifts vertically, the damping rotating disk 2 will rotate, causing the rotating block 201 to rotate synchronously. This drives the crack needle to adjust its angle adaptively, effectively relieving the stress it experiences and preventing damage to the crack needle from the impact force generated by downward displacement, thus protecting the sensor. This is the working principle of the fixing device for the crack gauge used in open-air slope slip monitoring.
Claims
1. A fixing device for a crack gauge for monitoring slippage on an open slope, comprising a fixing base (1), characterized in that, The upper surface of the fixed base (1) is provided with a support rod (101), and the surface of the support rod (101) is provided with a guide groove (102). The inner surface of the guide groove (102) is rotatably mounted with a screw drive rod (103), and the outer surface of the screw drive rod (103) is provided with a guide slider (104). The guide slider (104) and the inner surface of the guide groove (102) are slidably connected. The front surface of the guide slider (104) is provided with a damping rotating disk (2), and the front surface of the damping rotating disk (2) is provided with a rotating block (201). The surface of the rotating block (201) is provided with a guide groove (202).
2. The fixing device for monitoring cracks in open-air slope slippage according to claim 1, characterized in that, The inner surface of the guide slide groove 2 (202) is slidably mounted with the guide slide plate 1 (203), and the inner surface of the guide slide plate 1 (203) is provided with the crack needle fixing sleeve (204).
3. The fixing device for monitoring cracks in open-air slope slippage according to claim 1, characterized in that, The right side surface of the rotating block (201) is provided with a support plate (3), and a spiral push rod (301) is spirally installed on the surface of the support plate (3).
4. The fixing device for an open-air slope slippage monitoring crack gauge according to claim 3, characterized in that, The outer surface of the end of the spiral push rod (301) is equipped with a rotating frame (302), and a guide slide plate (303) is provided on the left side surface of the rotating frame (302).
5. The fixing device for an open-air slope slip monitoring crack gauge according to claim 4, characterized in that, The guide slide plate 2 (303) and the guide slide groove 2 (202) are configured to be slidably connected, and the guide slide plate 2 (303) is slidably installed with a limit slide rod (304) through the surface.
6. The fixing device for an open-air slope slip monitoring crack gauge according to claim 5, characterized in that, The outer surface of the limiting slide bar (304) is provided with a pressure relief spring (305), and the left side of the pressure relief spring (305) is fixedly connected to the guide slide plate (203).