A quality testing device for grouting treatment in goaf areas
By introducing a limiting guide ring and a laser alignment system into the quality detection device for grouting treatment in goaf areas, the problems of long alignment time and large error of high-definition probes have been solved, and rapid and accurate detection has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HIGHWAY ENG GROUP
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-30
AI Technical Summary
The existing quality testing device for grouting treatment in goaf areas lacks a limiting and guiding structure, which results in long alignment time and large errors for the high-definition probe, affecting the testing quality.
A specialized limiting guide ring and laser alignment system are designed to quickly align the high-definition probe using the limiting guide ring, and to ensure accurate probe positioning using a laser transmitter and receiver.
This improved the alignment and adjustment efficiency of the high-definition probe, reduced manual adjustment errors, and ensured the quality of the test.
Smart Images
Figure CN224436124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal mine goaf detection equipment, and more specifically, to a goaf grouting treatment quality detection device. Background Technology
[0002] Coal mines are an energy source for people. After coal mining, goaf areas are formed underground. If goaf areas are not treated in time, they will subside and cause serious losses. Therefore, it is necessary to fill the goaf areas with grout. Afterwards, quality testing is required to issue a geological exploration stability condition report. At present, magnetotelluric detection, microgravity detection and borehole television detection methods are generally used in quality testing.
[0003] Among them, borehole television detection method has the advantages of large detection depth, good imaging quality, observation accuracy and effect, and simple and quick operation. The borehole television detection method generally uses a CCD camera to capture images in the borehole and observes the image of the well wall reflected by a plane mirror. The observation range is generally 35° angle. The observer can rotate the probe 360°, raise or lower it according to the actual situation to track the observed target. Borehole television uses dynamic recording, which reflects dynamic changes such as leakage in the borehole more realistically.
[0004] In actual testing, a tripod is typically used to mount the counter. The cable is wound around the counter's rollers and then connected to the high-definition probe. Finally, the control unit is connected to the winch of the cable and the corresponding interface of the counter via wiring to complete the equipment connection. However, the existing equipment has the following problems in actual operation: First, the high-definition probe needs to be adjusted using a tripod to be positioned at the center of the sleeve above the reserved hole. The existing quality inspection device does not have a dedicated limiting and guiding structure, making manual alignment time-consuming and prone to errors, which affects the subsequent inspection quality. Second, when performing zero-point offset measurement, the cable length needs to be adjusted so that the center of the high-definition probe's glass cover is aligned with the upper plane of the sleeve. Manual alignment is also time-consuming and prone to errors, affecting the user experience of the inspection device. Utility Model Content
[0005] The purpose of this invention is to provide a quality testing device for grouting treatment in goaf areas. This device, through the design of a specially designed positioning component, can help testing personnel perform limiting and guiding operations on the high-definition probe, improve the alignment and adjustment efficiency of the high-definition probe with the casing center and the upper plane, reduce manual adjustment errors, and ensure the quality of subsequent quality testing.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A quality testing device for grouting treatment in goaf areas includes a casing for pre-reserved grouting holes in the goaf area. A counter is mounted on the top of the casing via a tripod. A cable is wound around the counter roller. One end of the cable is wound around a winch hub, and the other end is connected downwards to a high-definition probe. A locking block is embedded in the upper edge of the casing. The locking block is fixed to the casing by a tightening bolt on its outer side. A threaded cylinder is machined at the center of the upper surface of the locking block. A detachable vertical connecting rod is screwed into the threaded cylinder. The lower end of the vertical connecting rod is threaded, and the upper end of the vertical connecting rod is connected inwards to a limit guide ring via two parallel horizontal connecting rods. The high-definition probe passes through the hollow area inside the limit guide ring. The center of the limit guide ring and the center of the casing are on the same straight line.
[0008] As a further optimization of this solution, the card block is provided with symmetrical arc-shaped connecting rods on both sides. The arc-shaped connecting rods are distributed in a quarter-circle along the upper end face of the sleeve, and the outer end of the arc-shaped connecting rod is connected to an inward L-shaped connecting rod. The vertical section of the L-shaped connecting rod extends into the inner area of the sleeve, and a connecting sleeve is fitted on the vertical section of the L-shaped connecting rod. The connecting sleeve is limited by screws on the side. A laser emitter is installed on the inner side of the connecting sleeve on one side, and a laser receiver is installed on the inner side of the connecting sleeve on the other side.
[0009] As a further optimization of this solution, a light-shielding strap is fitted at the center of the glass cover of the high-definition probe.
[0010] As a further optimization of this solution, the diameter of the light-shielding strap is smaller than the diameter of the limiting guide ring.
[0011] As a further optimization of this solution, the detachable vertical connecting rod can be equipped with limit guide rings of different sizes according to the size of the high-definition probe. The locking block and the light-shielding strap are all removed after the zero-point offset measurement is completed.
[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows:
[0013] This invention utilizes guide rings of different sizes, selected to match the dimensions of the high-definition probe, to guide and position the probe at the center of the sleeve above the pre-drilled hole. This helps inspectors quickly adjust the tripod position, ensuring the probe is aligned to the center of the sleeve, thus improving alignment efficiency. Simultaneously, the design incorporates a laser emitter, laser receiver, and light-shielding strap. The light-shielding strap is positioned at the center of the high-definition probe's glass cover. As the probe is lowered via a cable, the light-shielding strap blocks the laser beam, causing the laser receiver to lose signal and flicker. This indicates the probe's glass cover is aligned with the upper plane of the sleeve, further enhancing alignment efficiency, reducing errors from traditional manual adjustments, and ensuring the quality of subsequent quality inspections. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the detection device of this utility model;
[0015] Figure 2 This is a schematic diagram of the vertical connecting rod connection structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the disassembled structure of the limiting guide rings of different sizes according to this utility model;
[0017] Figure 4 This is a schematic diagram of the connection structure between the laser transmitter and the laser receiver of this utility model;
[0018] In the diagram: 1. Sleeve; 2. Tripod; 3. Counter; 4. Cable; 5. High-definition probe; 6. Clamp; 7. Locking bolt; 8. Vertical connecting rod; 9. Horizontal connecting rod; 10. Limiting guide ring; 11. Arc-shaped connecting rod; 12. L-shaped connecting rod; 13. Connecting sleeve; 14. Screw; 15. Laser emitter; 16. Laser receiver; 17. Glass cover; 18. Light-shielding strap. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0020] To address the issue that the existing high-definition probe 5 needs to be adjusted using a tripod 2 to the center position of the sleeve 1 above the reserved hole, and that the quality inspection device does not have a dedicated limiting and guiding structure, manual alignment is time-consuming and has a large error, affecting the quality of subsequent inspections;
[0021] like Figure 1As shown, this application includes a casing 1 for grouting pre-reserved holes in the goaf. A counter 3 is provided above the casing 1 via a tripod 2. A cable 4 is wound around the roller of the counter 3. One end of the cable 4 is wound around the winch hub and the other end is connected downward to the high-definition probe 5.
[0022] like Figure 2 As shown, a locking block 6 is embedded in the upper edge of the sleeve 1. The locking block 6 is fixed to the sleeve 1 by tightening bolts 7 on the outer side. A threaded cylinder is machined at the center of the upper surface of the locking block 6. A detachable vertical connecting rod 8 is screwed into the threaded cylinder. The lower end of the vertical connecting rod 8 is threaded, and the upper end of the vertical connecting rod 8 is connected to a limiting guide ring 10 inward through two parallel horizontal connecting rods 9. The hollow area inside the limiting guide ring 10 passes through the high-definition probe 5. The center of the limiting guide ring 10 and the center of the sleeve 1 are on the same straight line.
[0023] like Figure 3 As shown, the detachable vertical connecting rod 8 can be equipped with limit guide rings 10 of different sizes according to the size of the high-definition probe 5;
[0024] Specifically, after selecting a suitable size limiting guide ring 10, the vertical connecting rod 8 is screwed into the connecting block 6, and the cylindrical shell of the high-definition probe 5 is placed into the hollow area inside the upper and lower limiting guide rings 10. Initially, the cylindrical shell of the high-definition probe 5 is tilted. The testing personnel adjust the position of the tripod 2 so that the cylindrical shell of the high-definition probe 5 passes vertically through the hollow area inside the upper and lower limiting guide rings 10 without contacting either limiting guide ring 10, thus achieving alignment. The high-definition probe 5 is then adjusted to the center position of the sleeve 1 above the reserved hole.
[0025] To address the existing problem that when performing zero-point offset measurements, it is necessary to adjust the length of the cable 4 so that the center of the glass cover 17 of the high-definition probe 5 is aligned with the zero-point position on the upper plane of the sleeve 1, which is time-consuming and has large errors due to manual alignment, thus affecting the user experience of the detection device.
[0026] like Figure 4 As shown, the card block 6 has symmetrical arc-shaped connecting rods 11 on both sides. The arc-shaped connecting rods 11 are distributed in a quarter circle along the upper end face of the sleeve 1, and the outer end of the arc-shaped connecting rods 11 is connected to an inward L-shaped connecting rod 12. The vertical section of the L-shaped connecting rod 12 extends into the inner area of the sleeve 1, and a connecting sleeve 13 is fitted on the vertical section of the L-shaped connecting rod 12. The connecting sleeve 13 is limited by the screw 14 on the side. A laser emitter 15 is installed on the inner side of the connecting sleeve 13 on one side, and a laser receiver 16 is installed on the inner side of the connecting sleeve 13 on the other side. A light-shielding strap 18 is fitted at the center of the glass cover 17 of the high-definition probe 5. The diameter of the light-shielding strap 18 is smaller than the diameter of the limiting guide ring 10.
[0027] Specifically, by adjusting the positions of the laser emitter 15 and the laser receiver 16 in advance on the vertical section of the L-shaped connecting rod 12, the laser emitter 15 is aligned with the upper plane of the sleeve 1. The high-definition probe 5 is continuously lowered down via the cable 4. When the light-shielding strap 18 on the glass cover 17 of the high-definition probe 5 blocks the laser beam, the laser receiver 16 does not receive a signal flash. This indicates that the glass cover 17 of the high-definition probe 5 is aligned with the upper plane of the sleeve 1, further helping the inspection personnel improve the efficiency of alignment adjustment, reduce the error of traditional manual adjustment, and ensure the quality of subsequent quality inspection. After completing the above alignment work, the clip 6 and the light-shielding strap 18 are removed, and subsequent lowering quality inspection work is carried out.
[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0029] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quality testing device for grouting treatment in goaf areas, comprising a casing for pre-reserved grouting holes in the goaf area, a counter mounted on a tripod above the casing, a cable wound around a roller of the counter, one end of the cable being wound around a winch hub and the other end being connected downwards to a high-definition probe, characterized in that: A locking block is embedded in the upper edge of the sleeve. The locking block is fixed to the sleeve by a tightening bolt on its outer side. A threaded cylinder is machined at the center of the upper surface of the locking block. A detachable vertical connecting rod is screwed into the threaded cylinder. The lower end of the vertical connecting rod is threaded, and the upper end of the vertical connecting rod is connected to a limit guide ring inward by two parallel horizontal connecting rods. A high-definition probe passes through the hollow area inside the limit guide ring. The center of the limit guide ring and the center of the sleeve are on the same straight line.
2. The quality testing device for grouting treatment in goaf areas according to claim 1, characterized in that: The card block has symmetrical arc-shaped connecting rods on both sides. The arc-shaped connecting rods are distributed in a quarter-circle along the upper end face of the sleeve, and the outer end of the arc-shaped connecting rod is connected to an inward L-shaped connecting rod. The vertical section of the L-shaped connecting rod extends into the inner area of the sleeve, and a connecting sleeve is fitted on the vertical section of the L-shaped connecting rod. The connecting sleeve is limited by screws on the side. A laser emitter is installed on the inner side of the connecting sleeve on one side, and a laser receiver is installed on the inner side of the connecting sleeve on the other side.
3. The quality testing device for grouting treatment in goaf areas according to claim 2, characterized in that: A light-shielding strap is fitted in the center of the glass cover of the high-definition probe.
4. The quality testing device for grouting treatment in goaf areas according to claim 3, characterized in that: The diameter of the light-shielding strap is smaller than the diameter of the limiting guide ring.
5. The quality testing device for grouting treatment in goaf areas according to claim 4, characterized in that: The detachable vertical connecting rod can be equipped with limit guide rings of different sizes depending on the size of the high-definition probe. The locking block and light-shielding strap are all removed after the zero-point offset measurement is completed.