Reusable full-sensing stress measurement mechanism and use method

Abstract

The invention relates to the technical field of ground stress detection, and discloses a reusable full-sensing stress measurement mechanism and a use method thereof, a glue injection hole is formed in the side wall of a stress meter outer cylinder, and a plastic film is arranged in the glue injection hole; when the stressometer inner cylinder slides along the stressometer outer cylinder, the stressometer inner cylinder can rotate through the first linkage mechanism; the gear sleeve can be detachably connected with an inner cavity of the stress meter inner cylinder through the clamping mechanism, the stress meter inner cylinder can drive the gear sleeve to rotate synchronously through the second linkage mechanism when rotating, the clamping mechanism is provided with an assembling position and a disassembling position, and when the gear sleeve rotates, the clamping mechanism can be switched between the assembling position and the disassembling position; when the gear sleeve rotates, the gear sleeve can slide along the telescopic sleeve through the third linkage mechanism; the device is convenient to use and suitable for various drilling conditions, and the sensor module can be pulled out in time and reused.

Description

Technical Field

[0001] The present invention relates to the technical field of ground stress detection, and in particular to a reusable full-sensing stress measurement mechanism and a use method thereof. Background Art

[0002] Hollow inclusion stress gauges can realize in-situ geostress testing in underground projects such as mines and tunnels through the stress relief method, which is of great significance for guiding engineering design and preventing dynamic disasters.

[0003] To obtain accurate and reliable original geostress data in underground projects, the measuring point needs to be as far away from the mining disturbance area as possible. The test drilling footage is often more than 3 times the width of the tunnel section. The traditional push rod pushing method has a low success rate due to the long hole depth, and the push rod cannot be pulled out in time because the epoxy resin colloid has not solidified, which limits the tunnel function. Although the patent uses fisheye lenses, pressure-sensitive force gauges and other multi-sensor methods to solve the visualization problem to a certain extent, it is still limited by the traditional pushing method. There are still the following shortcomings:

[0004] (1) The manufacturing cost is high and cannot be reused. Each sensor module will be fixed in the test core together with the stress gauge by epoxy resin. The damage rate is extremely high during the secondary coring and core testing process, and it is basically impossible to reuse. (2) The push rod cannot be pulled out of the test borehole in time. After the existing hollow inclusion stress gauge is injected, it is necessary to wait for the epoxy resin to completely solidify before the push rod can be pulled out. The end of the push rod occupies the tunnel space for a long time, affecting normal operation. (3) Pure visual sensors have poor applicability. After the test borehole is formed, silt or fog often accumulates in the hole. Visual sensors alone need to repeatedly wipe the lens to remove fog and mud. Summary of the invention

[0005] The purpose of the present invention is to provide a reusable full-sensing stress measurement mechanism and a method of use, which aims to solve or improve at least one of the above-mentioned technical problems. It is easy to use, adaptable to various drilling conditions, and the sensor module can be pulled out and reused in time.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a reusable full-sensing stress measurement mechanism, comprising:

[0007] The outer cylinder of the stress gauge has a glue injection hole on its side wall, and a plastic film is arranged in the glue injection hole;

[0008] The inner cylinder of the stress gauge is used to slidably cooperate with the inner cavity of the outer cylinder of the stress gauge, the inner cylinder of the stress gauge can extrude the injection liquid in the outer cylinder of the stress gauge through the injection hole, and when the inner cylinder of the stress gauge slides along the outer cylinder of the stress gauge, the inner cylinder of the stress gauge can rotate through the first linkage mechanism;

[0009] The gear sleeve can be detachably connected to the inner cavity of the stress gauge inner cylinder through a clamping mechanism. When the stress gauge inner cylinder rotates, the gear sleeve can be driven to rotate synchronously through a second linkage mechanism. The clamping mechanism has an assembly position and a disassembly position. When the gear sleeve rotates, the clamping mechanism can be switched between the assembly position and the disassembly position;

[0010] The telescopic sleeve is used to slidably cooperate with the inner cavity of the gear sleeve. When the gear sleeve rotates, the gear sleeve can be made to slide along the telescopic sleeve through a third linkage mechanism;

[0011] The sensor module is used to be detachably connected to the telescopic sleeve, and the sensor module can extend out through the inner cavity of the stress gauge outer cylinder.

[0012] Optionally, the stress gauge outer cylinder includes;

[0013] The first sleeve, on the side wall of which the glue injection hole is provided;

[0014] The second sleeve is fixedly connected to the inner cavity of the first sleeve. A glue injection cavity communicating with the glue injection hole is formed between the second sleeve and the first sleeve. One end of the glue injection cavity far from the glue injection hole is open for the stress gauge inner cylinder to be inserted.

[0015] Optionally, a first clamping groove is circumferentially provided on the inner side wall of the first sleeve far from the glue injection hole. A sealing gasket is installed in the first clamping groove, and the sealing gasket is used to block the open end of the glue injection cavity.

[0016] Optionally, a conical sleeve is fixedly connected and communicated with one end of the second sleeve far from the open end of the glue injection cavity. The sensor module can extend out through the conical sleeve.

[0017] Optionally, a pair of rubber sealing soft rings are fixedly connected to the outer side wall of the first sleeve, and the glue injection hole is located between the pair of rubber sealing soft rings.

[0018] Optionally, the first linkage mechanism includes:

[0019] The spiral groove is provided on the inner side wall of the stress gauge outer cylinder;

[0020] The first roller is used to slidably cooperate with the spiral groove, and the first roller is fixedly connected to the outer side wall of the stress gauge inner cylinder.

[0021] Optionally, the second linkage mechanism includes:

[0022] The internal tooth structure is arranged on the inner side wall of the stress gauge inner cylinder;

[0023] The connecting rod is rotatably connected to the gear sleeve through a gear bearing, and the gear bearing is used to mesh with the internal tooth structure.

[0024] Optionally, the third linkage mechanism includes:

[0025] A spiral through groove is formed on the side wall of the gear sleeve;

[0026] A second roller is used for sliding cooperation with the spiral through groove, and the second roller is fixedly connected to the outer side wall of the telescopic sleeve.

[0027] Optionally, the clamping mechanism includes:

[0028] A second card slot is circumferentially formed on the inner side wall of one end of the stress gauge inner cylinder close to the internal tooth structure;

[0029] A pair of openings are formed at the port of the stress gauge inner cylinder close to the internal tooth structure, and the openings are communicated with the second card slot;

[0030] A convex tooth is fixedly connected to the outer side wall of the gear sleeve, and the convex tooth can be inserted into or withdrawn from the second card slot through the opening.

[0031] The present invention also provides a use method of a reusable full-sensing stress measurement mechanism, including the following steps:

[0032] Assemble the stress gauge outer cylinder, the stress gauge inner cylinder, the gear sleeve, the telescopic sleeve and the sensor module;

[0033] After connecting the gear sleeve to the thrust device, push it into the drill hole;

[0034] When the stress gauge outer cylinder contacts the bottom surface of the drill hole, increase the pushing force to squeeze and release the glue solution and retract the telescopic sleeve to recover the sensor module;

[0035] Take out the gear sleeve, the telescopic sleeve and the sensor module, and leave the stress gauge outer cylinder and the stress gauge inner cylinder in the drill hole.

[0036] The present invention discloses the following technical effects:

[0037] The present invention can realize the timely recycling of multi-sensor terminals, greatly reduce the cost of in-situ stress testing. Through the first linkage mechanism, the second linkage mechanism and the clamping mechanism, the vertical pushing movement of the stress gauge inner cylinder is linked to the clockwise rotation of the stress gauge inner cylinder, thereby driving the gear sleeve synchronously, realizing the switching between the assembly position and the disassembly position, and realizing the disassembly of the gear sleeve and the stress gauge inner cylinder. Thus, while retaining the stress gauge outer cylinder and the stress gauge inner cylinder in the small drill hole, the sensor module is extracted, realizing the reuse of high-value sensors.

[0038] The present invention can protect the key sensor module in real time. The telescopic sleeve is connected to the sensor module. Through the third linkage mechanism, when the outer cylinder of the stress gauge reaches the bottom of the small borehole and starts to be pushed, the clockwise rotation of the gear sleeve will drive the telescopic sleeve to rotate synchronously and contract into the gear sleeve, thereby ensuring that the components of the sensor module will not be damaged by friction with the hole wall or the hole bottom during the recovery process.

[0039] The present invention is more adaptable to complex drilling environments, especially test drill holes containing silt or water vapor. Through the barrier of the sealing gasket, it can avoid the premature release of the epoxy resin colloid due to small gravel in the hole or hitting the wall due to manual operation errors during the pushing process; through the cooperation of lidar image transmission and infrared distance sensing, it can display the hole wall structure and the level of fractures in the hole on the screen of the data terminal in real time, which is used to align the 36mm diameter small borehole and judge whether the integrity of the rock formation in the test drill hole meets the requirements, avoiding unclear pure visual image transmission caused by water vapor and silt in the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0041] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 is a schematic diagram of the outer cylinder structure of the stress gauge of the present invention;

[0043] Figure 3 is a cross-sectional view of the outer cylinder of the stress gauge of the present invention;

[0044] Figure 4 is a schematic diagram of the inner cylinder structure of the stress gauge of the present invention;

[0045] Figure 5 is a schematic diagram of the gear sleeve structure of the present invention;

[0046] Figure 6 is a schematic diagram of the telescopic sleeve structure of the present invention;

[0047] Figure 7 is a schematic diagram of the sensor module structure of the present invention;

[0048] Figure 8 is a schematic diagram of the assembled structure of the present invention;

[0049] Figure 9 is a schematic diagram of the structure after injecting glue of the present invention;

[0050] Figure 10Schematic diagram of the arrangement of the stress gauge outer cylinder wall of the present invention changing with stress.

[0051] In the figure:

[0052] 1. Stress gauge outer cylinder; 101. Conical sleeve; 102. Spiral groove; 103. Glue injection hole; 104. Plastic film; 105. First card slot; 106. Sealing gasket; 107. Rubber sealing soft ring;

[0053] 2. Stress gauge inner cylinder; 201. First roller; 202. Internal tooth structure; 203. Opening;

[0054] 3. Gear sleeve; 301. Gear bearing; 302. Spiral through groove; 303. Convex tooth; 304. Thread;

[0055] 4. Telescopic sleeve; 401. Second roller; 402. Internal thread;

[0056] 5. Sensor module; 501. External thread; 502. High-transparency acrylic shield; 503. Lidar lens; 504. Infrared distance sensor; 505. Electronic compass; 506. Integrated wiring harness;

[0057] 6. Strain gauge. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0060] Referring to Figures 1-10 , the present invention provides a reusable full-sensing stress measurement mechanism, including:

[0061] A stress gauge outer cylinder 1, with a glue injection hole 103 opened on the side wall, and a plastic film 104 is arranged in the glue injection hole 103 to prevent the glue injection liquid from leaking out;

[0062] A stress gauge inner cylinder 2, which is slidably matched with the inner cavity of the stress gauge outer cylinder 1, the stress gauge inner cylinder 2 can extrude the glue injection liquid in the stress gauge outer cylinder 1 through the glue injection hole 103, and when the stress gauge inner cylinder 2 slides along the stress gauge outer cylinder 1, the stress gauge inner cylinder 2 can be rotated through the first linkage mechanism;

[0063] The gear sleeve 3 can be detachably connected to the inner cavity of the stress gauge inner cylinder 2 through a clamping mechanism. When the stress gauge inner cylinder 2 rotates, the gear sleeve 3 can be driven to rotate synchronously through the second linkage mechanism. The clamping mechanism has an assembly position and a disassembly position. When the gear sleeve 3 rotates, the clamping mechanism can be switched between the assembly position and the disassembly position;

[0064] The telescopic sleeve 4 is used to slidably cooperate with the inner cavity of the gear sleeve 3. When the gear sleeve 3 rotates, the gear sleeve 3 can be made to slide along the telescopic sleeve 4 through the third linkage mechanism;

[0065] The sensor module 5 is used to be detachably connected to the telescopic sleeve 4, and the sensor module 5 can extend out through the inner cavity of the stress gauge outer cylinder 1.

[0066] Through the first linkage mechanism, the second linkage mechanism and the clamping mechanism, the vertical pushing movement of the stress gauge inner cylinder 2 is linked to the clockwise rotation of the stress gauge inner cylinder 2, and then the gear sleeve 3 is driven synchronously to realize the switching between the assembly position and the disassembly position, and the disassembly of the gear sleeve 3 and the stress gauge inner cylinder 2, so as to withdraw the sensor module 5 while retaining the stress gauge outer cylinder 1 and the stress gauge inner cylinder 2 in the small drill hole, realizing the reuse of high-value sensors.

[0067] The telescopic sleeve 4 is connected to the sensor module 5. Through the third linkage mechanism, when the stress gauge outer cylinder 1 reaches the bottom of the small drill hole and starts to be pushed, the clockwise rotation of the gear sleeve 3 will drive the telescopic sleeve 4 to rotate synchronously and contract into the gear sleeve 3, so as to ensure that the components of the sensor module 5 will not be damaged by friction with the hole wall or the hole bottom during the recovery process.

[0068] Furthermore, the injection liquid is epoxy resin.

[0069] In an embodiment of the present invention, the stress gauge outer cylinder 1 includes;

[0070] The first sleeve, on the side wall of which there is an injection hole 103;

[0071] The second sleeve is fixedly connected to the inner cavity of the first sleeve. A glue injection cavity communicating with the injection hole 103 is formed between the second sleeve and the first sleeve. One end of the glue injection cavity far from the injection hole 103 is open for the stress gauge inner cylinder 2 to be inserted.

[0072] By pulling out the stress gauge inner cylinder 2, the glue injection cavity can be filled with injection liquid through the open end of the glue injection cavity towards its interior.

[0073] In an embodiment of the present invention, a first clamping groove 105 is circumferentially provided on the inner side wall of one end of the first sleeve far from the injection hole 103. A sealing gasket 106 is installed in the first clamping groove 105, and the sealing gasket 106 is used to block the open end of the glue injection cavity.

[0074] After filling with the injection liquid, the open end of the injection cavity can be blocked by installing the sealing gasket 106 in the first clamping groove 105, which can prevent the premature release of the injection liquid.

[0075] In an embodiment of the present invention, one end of the second sleeve away from the open end of the injection cavity is fixedly connected and communicated with a conical sleeve 101, and the sensor module 5 can extend through the conical sleeve 101.

[0076] In an embodiment of the present invention, a pair of rubber sealing soft rings 107 are fixedly connected to the outer side wall of the first sleeve, and the injection hole 103 is located between the pair of rubber sealing soft rings 107.

[0077] The outer diameter of the rubber sealing soft ring 107 is slightly larger than the aperture of the small hole for in-situ stress testing, ensuring that the injection liquid makes full contact with the surrounding rock mass of the stress gauge outer cylinder 1 and completely solidifies.

[0078] In an embodiment of the present invention, the first linkage mechanism includes:

[0079] A spiral groove 102 is opened on the inner side wall of the stress gauge outer cylinder 1;

[0080] A first roller 201 is used for sliding cooperation with the spiral groove 102, and the first roller 201 is fixedly connected to the outer side wall of the stress gauge inner cylinder 2.

[0081] The diameter of the first roller 201 is consistent with the width of the spiral groove 102, and the two are engaged to realize the axial linear motion and rotational motion cooperation of the stress gauge outer cylinder 1 and the stress gauge inner cylinder 2.

[0082] In an embodiment of the present invention, the second linkage mechanism includes:

[0083] An internal tooth structure 202 is arranged on the inner side wall of the stress gauge inner cylinder 2;

[0084] A connecting rod is rotatably connected to the gear sleeve 3 through a gear bearing 301, and the gear bearing 301 is used for meshing with the internal tooth structure 202.

[0085] The internal tooth structure 202 meshes with the gear bearing 301 to realize the transmission of the clockwise rotational motion of the stress gauge inner cylinder 2 to the gear sleeve 3.

[0086] Furthermore, the connecting rod is connected to the push rod of the thrust device through a thread 304.

[0087] In an embodiment of the present invention, the third linkage mechanism includes:

[0088] A spiral through groove 302 is opened on the side wall of the gear sleeve 3;

[0089] The second roller 401 is used for sliding cooperation with the spiral through groove 302, and the second roller 401 is fixedly connected to the outer side wall of the telescopic sleeve 4.

[0090] The spiral through groove 302 meshes with the second roller 401 to convert the clockwise rotational movement of the gear sleeve 3 into the contraction movement of the telescopic sleeve 4 into the gear sleeve 3, so that the front end of the sensor module 5 is always at the same level as the outer cylinder 1 of the stress gauge, preventing damage to the sensor module 5.

[0091] In an embodiment of the present invention, the clamping mechanism includes:

[0092] The second card slot is circumferentially opened on the inner side wall of one end of the inner cylinder 2 of the stress gauge close to the internal tooth structure 202;

[0093] A pair of openings 203 are opened at the port of the inner cylinder 2 of the stress gauge close to the internal tooth structure 202, and the openings 203 are communicated with the second card slot;

[0094] The convex teeth 303 are fixedly connected to the outer side wall of the gear sleeve 3, and the convex teeth 303 can be inserted into or withdrawn from the second card slot through the openings 203.

[0095] By controlling the rotation angle of the gear sleeve 3, the switching between the assembly position and the disassembly position can be realized through the cooperation of a pair of openings 203 and the convex teeth 303, and the disassembly and assembly of the gear sleeve 3 from the inner cylinder 2 of the stress gauge can be realized.

[0096] Further, the tail of the sensor module 5 is provided with an external thread 501, and the front end of the telescopic sleeve 4 is provided with an internal thread 402 for cooperating with the external thread 501 to realize the disassembly and assembly of the sensor module 5 and the telescopic sleeve 4. The front part thereof is a hemispherical high-transparency acrylic cover 502 to protect the internal lidar lens 503, infrared distance sensor 504 and electronic compass 505. The integrated wire harness 506 wrapped by a nylon rope in which the data and power supply of each sensor are combined extends from the tail of the sensor module.

[0097] The present invention also provides a usage method of a reusable full-sensing stress measurement mechanism, including the following steps:

[0098] Assemble the outer cylinder 1 of the stress gauge, the inner cylinder 2 of the stress gauge, the gear sleeve 3, the telescopic sleeve 4 and the sensor module 5; connect the gear sleeve 3 with the thrust device and then push it into the drilling hole; when the outer cylinder 1 of the stress gauge contacts the bottom surface of the drilling hole, increase the pushing force to squeeze and release the glue liquid and contract and recover the sensor module 5 by the telescopic sleeve 4; take out the gear sleeve 3, the telescopic sleeve 4 and the sensor module 5, and leave the outer cylinder 1 of the stress gauge and the inner cylinder 2 of the stress gauge in the drilling hole. Specifically:

[0099] Drill a large borehole with a diameter of 130 mm in the rock formation according to the in-situ stress test plan, and continue to drill a small borehole with a diameter of 36 mm inward at the bottom of the large borehole according to the designed depth.

[0100] Check the integrity of the plastic film 104 and the rubber sealing soft ring 107 of the glue injection hole 103 on the outer cylinder 1 of the stress gauge. Rotate and extract the inner cylinder 2 of the stress gauge, inject the fully stirred epoxy resin colloid into the outer cylinder 1 of the stress gauge until the glue injection line. After installing the paper sealing gasket 106 into the first card slot 105 of the outer cylinder 1 of the stress gauge, snap the first roller at the front of the inner cylinder 2 of the stress gauge into the spiral groove 102 on the inner wall of the outer cylinder 1 of the stress gauge. So far, the main body of the stress gauge is assembled.

[0101] Make the second roller 401 on the telescopic sleeve 4 be at the forefront of the spiral through groove 302 of the gear sleeve 3. Connect the sensor module 5 to the telescopic sleeve 4 by thread. The power supply and data transmission integrated wire harness 506 of the lidar lens 503 extends out through the hollow cylinder wall of the telescopic sleeve 4 and the gear sleeve 3. Connect the assembled assembly to the inner cylinder 2 of the stress gauge through the gear bearing 301 of the gear sleeve 3. Check whether the lidar lens 503 protrudes from the outer cylinder 1 of the stress gauge. If so, continue with the installation of the stress gauge. If not, recheck whether the position of the telescopic sleeve 4 is installed correctly.

[0102] Connect the push rod of the thrust device to the gear sleeve 3, and push the combined device into the large borehole drilled in the rock formation in advance through the push rod. If the linear distance between the in-situ stress measurement point and the hole mouth exceeds 10 m, the stress gauge should be pushed into the borehole along a trajectory as concentric with the small borehole as possible with the help of an auxiliary positioning rod.

[0103] While pushing forward in the large borehole, visually reconstruct the surrounding rock of the borehole wall through the lidar lens 503 to judge the integrity of the surrounding rock in the area of the in-situ stress measurement point. If the surrounding rock near the small borehole is too broken and the fissures are too deep, it cannot meet the requirements of the in-situ stress test, and all devices need to be withdrawn and a new measurement point needs to be selected for testing.

[0104] If the integrity and flatness of the borehole wall surrounding rock meet the test requirements, continue to cycle and install the push rod to push the whole device towards the small borehole. Use the lidar depth imaging to judge the distance between the outer cylinder 1 of the stress gauge and the small borehole and whether they are centered. When the conical sleeve 101 at the front of the outer cylinder 1 of the stress gauge approaches the mouth of the small borehole and the center is adjusted to be aligned, slowly push the push rod to push the outer cylinder 1 of the stress gauge to the bottom of the test small borehole, record the dip of the electronic compass 505 at this time and zero the rotation angle.

[0105] Push the push rod forcefully. At this time, since the outer cylinder 1 of the stress gauge is constrained by being close to the bottom of the hole and cannot rotate, the forward force of the push rod is successively converted into the rotational motion of the inner cylinder 2, gear sleeve 3, and telescopic sleeve 4 of the stress gauge, realizing the extrusion and release of the epoxy resin inside the outer cylinder 1 of the stress gauge and the contraction and recovery of the sensor module 5 by the telescopic sleeve 4.

[0106] Observe the reading of the rotation angle display of the electronic compass 505. When the rotation angle of the internal telescopic sleeve 4 is 180°, it indicates that the outer cylinder 1 of the stress gauge and the inner cylinder 2 of the stress gauge are fully engaged, and the epoxy resin inside it is completely released. At the same time, the opening 203 at the disassembly position of the inner cylinder 2 of the stress gauge is aligned with the convex teeth 303 of the gear sleeve 3 again. Pull the push rod backward to realize the extraction of the gear sleeve 3, telescopic sleeve 4, and sensor module 5 together, while the hollow inclusion stress gauge composed of the outer cylinder 1 and inner cylinder 2 of the stress gauge will remain in the small drill hole to realize stress relief measurement.

[0107] The measurement principle is as follows:

[0108] As Figure 9 shown, three groups of strain gauges 6 are arranged on the outer cylinder 1 of the stress gauge at intervals of 120° along the central axis. Each group of strain gauges 6 contains four strain gauges 6, and their azimuth angles are 0°, 45°, 90°, and 120° respectively. During the stress relief process, the strain gauges record the strains in all directions of the outer cylinder 1 of the stress gauge respectively, and the stress state of the drill hole at this place is inversed through the following formula.

[0109]

[0110] In the formula, , , ([[]] is the number of strain gauges 6 in a group of strain gauges 6), is the th strain gauge 6 in the th strain gauge 6, and the angle between the direction where the th strain gauge 6 is located and the axial direction of the stress gauge.

[0111] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0112] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A reusable full-sensing stress measurement mechanism, characterized in that, Comprising: A stress gauge outer cylinder (1) with a glue injection hole (103) opened on its side wall, and a plastic film (104) is arranged in the glue injection hole (103); A stress gauge inner cylinder (2) for slidably cooperating with the inner cavity of the stress gauge outer cylinder (1). The stress gauge inner cylinder (2) can extrude the glue injection liquid in the stress gauge outer cylinder (1) through the glue injection hole (103). When the stress gauge inner cylinder (2) slides along the stress gauge outer cylinder (1), the stress gauge inner cylinder (2) can be rotated by a first linkage mechanism; A gear sleeve (3) that can be detachably connected to the inner cavity of the stress gauge inner cylinder (2) through a clamping mechanism. When the stress gauge inner cylinder (2) rotates, the gear sleeve (3) can be driven to rotate synchronously by a second linkage mechanism. The clamping mechanism has an assembly position and a disassembly position. When the gear sleeve (3) rotates, the clamping mechanism can be switched between the assembly position and the disassembly position; A telescopic sleeve (4) for slidably cooperating with the inner cavity of the gear sleeve (3). When the gear sleeve (3) rotates, the gear sleeve (3) can be slid along the telescopic sleeve (4) by a third linkage mechanism; A sensor module (5) for detachably connecting to the telescopic sleeve (4), and the sensor module (5) can extend out through the inner cavity of the stress gauge outer cylinder (1).

2. The reusable all-perceiving stress measurement mechanism according to claim 1, wherein The stress gauge outer cylinder (1) includes; A first sleeve with the glue injection hole (103) opened on its side wall; A second sleeve fixedly connected to the inner cavity of the first sleeve. A glue injection cavity communicating with the glue injection hole (103) is formed between the second sleeve and the first sleeve. One end of the glue injection cavity far from the glue injection hole (103) is open for the stress gauge inner cylinder (2) to insert.

3. The reusable full-sensing stress measurement mechanism according to claim 2, characterized in that, A first clamping groove (105) is circumferentially opened on the inner side wall of the first sleeve far from the glue injection hole (103), and a sealing gasket (106) is installed in the first clamping groove (105) for blocking the open end of the glue injection cavity.

4. A reusable all-perception stress measurement mechanism according to claim 2, characterized in that, A conical sleeve (101) is fixedly connected and communicated with one end of the second sleeve far from the open end of the glue injection cavity, and the sensor module (5) can extend out through the conical sleeve (101).

5. The reusable all-perception stress measurement mechanism according to claim 2, characterized in that, A pair of rubber sealing soft rings (107) are fixedly connected to the outer side wall of the first sleeve, and the glue injection hole (103) is located between the pair of rubber sealing soft rings (107).

6. A reusable full-sensing stress measurement mechanism according to claim 1, characterized in that, The first linkage mechanism includes: A spiral groove (102) opened on the inner side wall of the stress gauge outer cylinder (1); A first roller (201) for slidably cooperating with the spiral groove (102), and the first roller (201) is fixedly connected to the outer side wall of the stress gauge inner cylinder (2).

7. A reusable all-perception stress measurement mechanism according to claim 1, characterized in that, The second linkage mechanism includes: An internal tooth structure (202) arranged on the inner side wall of the stress gauge inner cylinder (2); A connecting rod is rotationally connected to the gear sleeve (3) through a gear bearing (301), and the gear bearing (301) is used to mesh with the internal tooth structure (202).

8. A reusable all-perception stress measurement mechanism according to claim 1, characterized in that, The third linkage mechanism includes: Spiral through groove (302), formed on the side wall of the gear sleeve (3); Second roller (401), for sliding cooperation with the spiral through groove (302), and the second roller (401) is fixedly connected to the outer side wall of the telescopic sleeve (4).

9. A reusable all-sensing stress measurement mechanism according to claim 7, characterized in that, The clamping mechanism includes: Second card slot, circumferentially formed on the inner side wall of one end of the strain gauge inner cylinder (2) close to the internal tooth structure (202); A pair of openings (203), formed at the port of the strain gauge inner cylinder (2) close to the internal tooth structure (202), and the openings (203) are communicated with the second card slot; Convex teeth (303), fixedly connected to the outer side wall of the gear sleeve (3), and the convex teeth (303) can be inserted into or withdrawn from the second card slot through the openings (203).

10. A method of using a reusable all-sensing stress measurement mechanism, based on the reusable all-sensing stress measurement mechanism according to any one of claims 1-9, characterized in that, Including the following steps: Assemble the strain gauge outer cylinder (1), the strain gauge inner cylinder (2), the gear sleeve (3), the telescopic sleeve (4) and the sensor module (5); Connect the gear sleeve (3) to the thrust device and then push it into the drill hole; After the strain gauge outer cylinder (1) contacts the bottom surface of the drill hole, increase the pushing force to extrude and release the glue solution and contract and recover the sensor module (5) by the telescopic sleeve (4); Take out the gear sleeve (3), the telescopic sleeve (4) and the sensor module (5), and leave the strain gauge outer cylinder (1) and the strain gauge inner cylinder (2) in the drill hole.

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