Drilling peeping device based on roadway anchor rod construction

Abstract

The invention discloses a drilling peeping device based on roadway anchor rod construction, which relates to the technical field of drilling peeping and comprises a peeping instrument body, a cable body is arranged on the peeping instrument body, a peeping probe is fixedly connected to the bottom of the cable body, and a stabilizing mechanism is arranged on the outer surface of the peeping probe. The stabilizing mechanism enables the peeping probe to be kept smooth when the peeping probe descends in a drill hole, the stabilizing mechanism comprises a lower mounting sleeve, and the lower mounting sleeve is fixedly connected to the outer surface of the peeping probe. In addition, in the descending peeping process of the peeping probe, steering avoiding can be automatically conducted through the conical surface of the lower mounting sleeve, meanwhile, the protection rod and the adjusting rod are automatically unfolded, the centering state and stability after avoiding are guaranteed, the adaptability of the peeping probe to the complex drilling environment is improved, and the good working state is kept.

Description

Technical Field

[0001] This invention relates to the field of borehole inspection technology, specifically a borehole inspection device based on roadway anchor bolt construction. Background Technology

[0002] Before the installation of anchor bolts in the tunnel, in order to fully understand the internal condition and geological conditions of the borehole, it is necessary to use a borehole inspection device to inspect the borehole and obtain the condition inside the borehole, thereby ensuring the effectiveness of the anchor bolt support and the safety of the construction.

[0003] In the existing technology, one end of the borehole inspection device probe is connected to an optical cable. By lowering the optical cable, the borehole inspection device probe is gradually extended into the borehole. During the extension process, the probe takes pictures of the situation inside the borehole and transmits the captured data to ground equipment in real time, thereby completing the inspection of the borehole.

[0004] While the aforementioned borehole inspection device can perform borehole inspection well, during use, due to the complexity of geological conditions, the coupling effect of rock mass structure damage in the goaf, dynamic stress adjustment, and subsequent environmental disturbances, borehole misalignment is prone to occur. As the probe relies on gravity to maintain its vertical centering during descent into a smaller borehole diameter, misalignment will prevent it from being properly centered in the borehole, affecting the uniformity of the probe's inspection range. In some cases, misalignment may even cause the probe to jam, hindering the normal progress of the inspection work.

[0005] Therefore, this invention proposes a borehole inspection device based on roadway anchor bolt construction to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a borehole inspection device based on roadway anchor bolt construction, so as to solve the problems in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a borehole inspection device based on roadway anchor bolt construction, comprising an inspection instrument body, a cable body provided on the inspection instrument body, and an inspection probe fixedly connected to the bottom of the cable body, characterized in that a stabilizing mechanism is provided on the outer surface of the inspection probe, the stabilizing mechanism ensuring that the inspection probe remains smooth when descending in the borehole; The stabilizing mechanism includes a lower mounting sleeve, which is fixedly connected to the outer surface of the viewing probe. One end of the lower mounting sleeve is tapered, and a detection component is provided on the lower mounting sleeve. Multiple protective rods are rotatably connected to the outer surface of the lower mounting sleeve, and multiple support plates are fixedly connected inside the lower mounting sleeve. A return spring is fixedly connected between the support plate and the adjacent protective rod. The detection component is triggered when it comes into contact with the inclined inner wall of the misaligned borehole, and when the detection component is triggered, the protective rod rotates outward with its bottom as the axis.

[0008] Preferably, the detection component includes multiple trigger balls, all of which are slidably connected to the conical surface of the lower mounting sleeve. A connecting ring is slidably connected inside the lower mounting sleeve. Multiple trigger rods are fixedly connected to the bottom of the connecting ring, and multiple sliding rods are fixedly connected to the top of the connecting ring. Each sliding rod has an L-shaped insert fixedly connected to the side near the adjacent guard rod, and each guard rod has a fixing block fixedly connected to the side near the sliding rod. When the trigger balls slide inside the lower mounting sleeve, they drive the trigger rods to slide upward.

[0009] Preferably, the multiple trigger rods are located above adjacent trigger balls, and the end of the trigger rod closest to the adjacent trigger ball is set to be arc-shaped.

[0010] Preferably, the outer surface of the trigger ball is provided with a wear-resistant material.

[0011] Preferably, the fixing block has an inclined surface on the side near the adjacent sliding rod.

[0012] Preferably, the stabilizing mechanism includes a plurality of limiting rods, each of which is fixedly connected to the outer surface of an adjacent lower mounting sleeve.

[0013] Preferably, the number of limiting rods corresponds to the number of protective rods, and the limiting rods are arranged below adjacent protective rods. When the protective rods rotate, the limiting rods engage with the protective rods.

[0014] Preferably, the outer surface of the viewing probe is fixedly connected to an upper mounting sleeve, and the end of the upper mounting sleeve away from the lower mounting sleeve is set to be tapered.

[0015] Preferably, each of the guard rods is provided with an auxiliary mechanism for adjusting the guard rod. The auxiliary mechanism includes an adjusting rod that is slidably connected to the guard rod. A fastening bolt is threaded onto the outer surface of the adjusting rod. A flexible connecting block is fixedly connected to the top of the adjusting rod. A support block is fixedly connected to the top of the flexible connecting block. A movable part is rotatably connected to the top of the support block.

[0016] Preferably, the fastening bolt passes through the adjusting rod by rotation, and one end of the adjusting rod abuts against the protective rod.

[0017] Compared with the prior art, the present invention provides a borehole inspection device based on roadway anchor bolt construction, which has the following beneficial effects: 1. The present invention, through the setting of a stabilizing mechanism, utilizes the change of the borehole wall during drilling misalignment and the cooperation of the conical surface of the lower mounting sleeve to trigger the detection component. During the descent of the inspection probe, the lower mounting sleeve conical surface automatically turns to avoid the misalignment, while the protective rod and adjusting rod automatically unfold, ensuring the centering state and stability after the misalignment. This improves the adaptability of the inspection probe to complex drilling environments and maintains a better working condition.

[0018] 2. This invention adjusts the length of the adjusting rod through the cooperation of a stabilizing mechanism and an auxiliary mechanism, thereby adapting to various hole diameters. At the same time, it allows the viewing probe to maintain a good centered position during descent, while also reducing friction and ensuring smooth descent. Furthermore, the flexible connecting block allows the stabilizing mechanism to better adapt to uneven hole walls during descent or retraction, thus improving its applicability.

[0019] 3. The present invention, through the setting of the stabilizing mechanism, will only trigger the deployment when it encounters a fault, and will be in a retracted state under normal circumstances, thereby reducing its usage frequency, reducing wear, and ensuring a good working condition after triggering deployment, further improving the stability of the peep probe during use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial sectional view of the mounting sleeve in this invention; Figure 3 In this invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a partial three-dimensional structural view of the mounting sleeve in this invention; Figure 5 In this invention Figure 4 Enlarged structural diagram at point B; Figure 6 This is a three-dimensional structural diagram of the peep probe in this invention; Figure 7 This is a structural diagram of the protective rod when it is deployed in this invention.

[0021] In the picture: 1. Viewer body; 11. Cable body; 12. Viewer probe; 201. Lower mounting sleeve; 2011. Upper mounting sleeve; 202. Protective rod; 203. Return spring; 2031. Support plate; 204. Trigger ball; 205. Connecting ring; 206. Trigger rod body; 207. Sliding rod; 208. L-shaped insert rod; 209. Fixing block; 210. Limiting rod; 301. Adjusting rod; 302. Fastening bolt; 303. Flexible connecting block; 304. Support block; 305. Moving part. Detailed Implementation

[0022] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0023] like Figures 1 to 7 As shown, this embodiment provides a borehole inspection device based on roadway anchor bolt construction, including an inspection instrument body 1, a cable body 11 wound around the inspection instrument body 1, an inspection probe 12 fixedly connected to the bottom of the cable body 11, a stabilizing mechanism provided on the outer surface of the inspection probe 12, the stabilizing mechanism ensuring that the inspection probe 12 remains smooth when descending in the borehole, the stabilizing mechanism includes a lower mounting sleeve 201, the lower mounting sleeve 201 is fixedly connected to the outer surface of the inspection probe 12, one end of the lower mounting sleeve 201 is set as conical, a detection component is provided on the lower mounting sleeve 201, multiple protective rods 202 are rotatably connected to the outer surface of the lower mounting sleeve 201, multiple support plates 2031 are fixedly connected inside the lower mounting sleeve 201, a return spring 203 is fixedly connected between the support plate 2031 and the adjacent protective rod 202, the detection component is triggered when it contacts the inclined inner wall of the misaligned borehole, the detection component causes the protective rod 202 to rotate outward with its bottom as the axis.

[0024] The detection assembly includes multiple trigger balls 204, which are slidably connected to the conical surface of the lower mounting sleeve 201. A connecting ring 205 is slidably connected inside the lower mounting sleeve 201. Multiple trigger rods 206 are fixedly connected to the bottom of the connecting ring 205. The trigger rods 206 are located above the trigger balls 204. The end of the trigger rod 206 near the adjacent trigger ball 204 is set as an arc. Multiple sliding rods 207 are fixedly connected to the top of the connecting ring 205. Each sliding rod 207 is fixedly connected to an L-shaped insert 208 on the side near the adjacent guard rod 202. Each guard rod 202 is fixedly connected to a fixing block 209 on the side near the sliding rod 207.

[0025] When the trigger ball 204 slides into the lower mounting sleeve 201, it drives the trigger rod 206 to slide upward. When the sliding rod 207 does not slide, the bottom of the L-shaped insert 208 is in an insertion state with the top of the fixing block 209. The fixing block 209 is provided with an inclined surface on the side near the adjacent sliding rod 207. The stabilizing mechanism also includes multiple limiting rods 210. The limiting rods 210 are fixedly connected to the outer surface of the lower mounting sleeve 201. The outer surface of the viewing probe 12 is fixedly connected to the upper mounting sleeve 2011. The end of the upper mounting sleeve 2011 away from the lower mounting sleeve 201 is set as conical.

[0026] When in use, the lower mounting sleeve 201 is installed at the lower end of the viewing probe 12, and the conical surface of the lower mounting sleeve 201 is set at one end in the forward direction, so that when the drilling is misaligned, the conical surface of the lower mounting sleeve 201 will first contact the fault.

[0027] The trigger ball 204 is slidably connected to the conical surface of the lower mounting sleeve 201. Its sliding direction is inclined sliding. When it slides into the lower mounting sleeve 201, its spherical surface applies an upward thrust to the arc at the bottom of the trigger rod 206, thereby pushing the trigger rod 206 to move upward.

[0028] The end of the limiting rod 210 that engages with the protective rod 202 is made of rubber, which has a good shock absorption function. This allows the protective rod 202 to rotate outward and engage with the limiting rod 210. The limiting rod 210 absorbs the impact force of the rotation of the protective rod 202, reducing the impact force after the protective rod 202 rotates, thereby effectively ensuring the stability of the viewing probe 12 when the protective rod 202 is unfolded.

[0029] Furthermore, the outer surface of the trigger ball 204 is coated with a wear-resistant material, which is made of polyester fiber, to improve the service life of the trigger ball 204.

[0030] Further examples: Each guard rod 202 is equipped with an auxiliary mechanism for adjusting the guard rod 202. The auxiliary mechanism includes an adjusting rod 301, which is slidably connected to the guard rod 202. A fastening bolt 302 is threadedly connected to the outer surface of the adjusting rod 301. A flexible connecting block 303 is fixedly connected to the top of the adjusting rod 301. A support block 304 is fixedly connected to the top of the flexible connecting block 303. A movable part 305 is rotatably connected to the top of the support block 304. The fastening bolt 302 passes through the adjusting rod 301 by rotation, and one end of the bolt passing through the adjusting rod 301 abuts against the guard rod 202.

[0031] Furthermore, the flexible connecting block 303 is made of rubber, so that when its movable part 305 contacts the hole wall and descends, the elastic deformation of the flexible connecting block 303 allows the auxiliary mechanism to better adapt to the uneven area of ​​the hole wall.

[0032] Furthermore, the movable part 305 is spherical, and in use, the spherical surface adapts to the arc-shaped inner surface inside the hole.

[0033] The working principle of all the content in the above embodiments is as follows: Initial state: In the absence of external interference, the trigger ball 204 is located outside the conical surface of the lower mounting sleeve 201, the L-shaped insert 208 and the fixing block 209 are in the insertion state, when the L-shaped insert 208 and the fixing block 209 are inserted, the protective rod 202 cannot rotate outward, the return spring 203 is in the compressed state, and the fastening bolt 302 passes through the adjusting rod 301 and is in the abutting state with the protective rod 202. At this time, the adjusting rod 301 cannot slide.

[0034] During operation, the lower mounting sleeve 201 is fitted onto the lower end of the inspection probe 12, so that the inspection probe 12 is vertically inserted into the borehole to be inspected, and the inspection probe 12 is positioned at the center of the borehole when inserted.

[0035] The following explains the working principle and beneficial effects of the stabilizing mechanism: When drilling is normal, the stabilizing mechanism is not affected by external forces and therefore will not be triggered, remaining in a retracted state. When misalignment occurs in the borehole, during the descent of the inspection probe 12, the conical surface of the lower mounting sleeve 201 will first contact the misaligned borehole wall. The protruding borehole wall will then press against the conical surface of the lower mounting sleeve 201, causing the lower mounting sleeve 201 to rotate the inspection probe 12, automatically adapting to the direction of the misaligned borehole. Simultaneously, due to the borehole misalignment, the rotated lower mounting sleeve 201 will deviate from the center of the borehole. When the conical surface contacts the skewed borehole wall, the borehole wall will press at least one trigger ball 204 to slide into the lower mounting sleeve 201, thereby pushing at least one trigger rod 206 upwards, which in turn drives the connecting ring 205 and the sliding rod 20... 7. When the sliding rod 207 slides upward, it drives the L-shaped insert rod 208 to slide upward and disengage from the top of the fixed block 209. At this time, the protective rod 202 loses the insertion limit between the L-shaped insert rod 208 and the fixed block 209. Under the action of the return spring 203, the lower mounting sleeve 201 quickly rotates outward and unfolds. At the same time, the protective rod 202 engages with the corresponding limiting rod 210, and the movable part 305 contacts the hole wall. Thus, with the support of the unfolded multiple protective rods 202 and the flexible connecting block 303, the viewing probe 12 can maintain a good centering state even if it encounters hole misalignment during the downward movement inside the borehole.

[0036] By setting up a stabilizing mechanism, the detection component can be triggered by the change in the borehole wall during drilling misalignment and the cooperation of the tapered surface of the lower mounting sleeve 201. During the descent of the inspection probe 12, it can automatically turn and avoid obstacles through the tapered surface of the lower mounting sleeve 201. At the same time, the protective rod 202 and the adjusting rod 301 automatically unfold, ensuring the centering state and stability after avoidance. This improves the adaptability of the inspection probe 12 to complex drilling environments and maintains a better working condition.

[0037] Furthermore, by setting up a stabilizing mechanism, it will only be triggered to deploy when it encounters a fault, and can be stored in a retracted state under normal circumstances. This reduces its frequency of use and wear, and ensures that it can maintain a good working condition after being triggered to deploy, thereby further improving the stability of the peep probe 12 during use.

[0038] It should be noted that when the trigger ball 204 is no longer compressed, under the influence of gravity, the trigger ball 204, trigger rod 206, and sliding rod 207 automatically return to their initial state. After the viewing probe 12 is used and retrieved, the operator only needs to push the protective rod 202 to rotate it into the downward mounting sleeve 201. When the fixing block 209 approaches the L-shaped insert 208, one inclined surface of the fixing block 209 will press the L-shaped insert 208 upward until the fixing block 209 is directly below the L-shaped insert 208. At this point, the L-shaped insert 208 returns to its insertion limit state with the fixing block 209, thus completing the reset of the stabilizing mechanism and facilitating its next use.

[0039] Furthermore, by setting the upper mounting sleeve 2011, the top of the upper mounting sleeve 2011 is also set to be conical, so that when the viewing probe 12 is retracted, it can turn and avoid the fault.

[0040] The following explains the working principle and beneficial effects of the auxiliary mechanism: When using the auxiliary mechanism, before the inspection probe 12 enters the borehole, the fastening bolt 302 can be rotated in the reverse direction to release the contact between the fastening bolt 302 and the protective rod 202. Then, the lengths of the adjusting rod 301 and the protective rod 202 are adjusted according to the borehole diameter so that the movable part 305 of the protective rod 202 fits the borehole wall after it is unfolded. After the adjustment is completed, the fastening bolt 302 can be rotated in the forward direction so that one end of the fastening bolt 302 continues to pass through the adjusting rod 301 and abut against the protective rod 202, thereby completing the fixation of the adjusted rod 301.

[0041] Furthermore, when the protective rod 202 and the adjusting rod 301 are deployed, the contact and rotation of the movable part 305 with the hole wall allow the viewing probe 12 to maintain a good centered position during descent, while also reducing friction during descent and ensuring smooth descent of the viewing probe 12. In addition, the flexible connecting block 303 allows the stabilizing mechanism to better adapt to uneven hole walls during descent or retraction, thus improving its applicability.

[0042] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A borehole inspection device based on roadway anchor bolt construction, comprising an inspection instrument body (1), wherein a cable body (11) is provided on the inspection instrument body (1), and an inspection probe (12) is fixedly connected to the bottom of the cable body (11), characterized in that, The outer surface of the peep probe (12) is provided with a stabilizing mechanism, which makes the peep probe (12) descend smoothly in the borehole; The stabilizing mechanism includes a lower mounting sleeve (201), which is fixedly connected to the outer surface of the viewing probe (12). One end of the lower mounting sleeve (201) is tapered. A detection component is provided on the lower mounting sleeve (201). Multiple protective rods (202) are rotatably connected to the outer surface of the lower mounting sleeve (201). Multiple support plates (2031) are fixedly connected inside the lower mounting sleeve (201). A return spring (203) is fixedly connected between the support plate (2031) and the adjacent protective rod (202). The detection component is triggered when it comes into contact with the inclined inner wall of the misaligned borehole, and when the detection component is triggered, the protective rod (202) rotates outward with its bottom as the axis.

2. The borehole inspection device based on roadway anchor bolt construction according to claim 1, characterized in that: The detection component includes multiple trigger balls (204), each of which is slidably connected to the conical surface of the lower mounting sleeve (201). A connecting ring (205) is slidably connected inside the lower mounting sleeve (201). Multiple trigger rods (206) are fixedly connected to the bottom of the connecting ring (205), and multiple sliding rods (207) are fixedly connected to the top of the connecting ring (205). Each sliding rod (207) is fixedly connected to an L-shaped insert (208) on the side near the adjacent guard rod (202), and each guard rod (202) is fixedly connected to a fixing block (209) on the side near the sliding rod (207). When the trigger ball (204) slides inside the lower mounting sleeve (201), it drives the trigger rod (206) to slide upward.

3. The borehole inspection device based on roadway anchor bolt construction according to claim 2, characterized in that: Multiple trigger rods (206) are located above adjacent trigger balls (204), and the end of the trigger rod (206) near the adjacent trigger ball (204) is set to be arc-shaped.

4. A borehole inspection device based on roadway anchor bolt construction according to claim 2, characterized in that: The outer surface of the trigger ball (204) is provided with a wear-resistant material.

5. A borehole inspection device based on roadway anchor bolt construction according to claim 2, characterized in that: The fixed block (209) has an inclined surface on the side near the adjacent sliding rod (207).

6. A borehole inspection device based on roadway anchor bolt construction according to claim 1, characterized in that: The stabilizing mechanism includes a plurality of limiting rods (210), each of which is fixedly connected to the outer surface of an adjacent lower mounting sleeve (201).

7. A borehole inspection device based on roadway anchor bolt construction according to claim 6, characterized in that: The number of limiting rods (210) corresponds to the number of protective rods (202). The limiting rods (210) are set below the adjacent protective rods (202). When the protective rods (202) rotate, the limiting rods (210) engage with the protective rods (202).

8. A borehole inspection device based on roadway anchor bolt construction according to claim 1, characterized in that: The outer surface of the viewing probe (12) is fixedly connected to an upper mounting sleeve (2011). The end of the upper mounting sleeve (2011) away from the lower mounting sleeve (201) is set in a conical shape.

9. A borehole inspection device based on roadway anchor bolt construction according to claim 1, characterized in that: Each of the protective rods (202) is provided with an auxiliary mechanism for adjusting the protective rod (202). The auxiliary mechanism includes an adjusting rod (301), which is slidably connected to the protective rod (202). The outer surface of the adjusting rod (301) is threaded with a fastening bolt (302). A flexible connecting block (303) is fixedly connected to the top of the adjusting rod (301). A support block (304) is fixedly connected to the top of the flexible connecting block (303). A movable part (305) is rotatably connected to the top of the support block (304).

10. A borehole inspection device based on roadway anchor bolt construction according to claim 9, characterized in that: The fastening bolt (302) is rotated through the adjusting rod (301), and one end of the adjusting rod (301) abuts against the protective rod (202).

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