A cross-hole ultrasonic detection device for tunnel blasting relaxation range

Abstract

The utility model discloses a kind of cross-hole ultrasonic detection devices for tunnel blasting relaxation range in the technical field of ultrasonic detection, including mounting plate, the top of mounting plate is connected with multiple take-up drum, transmission structure for driving take-up drum rotation is provided on mounting plate, locking structure for preventing take-up drum from inverting is further provided on mounting plate, transmission structure is matched with locking structure, transmission structure includes two mounting seats, two mounting seats are all installed in the top of mounting plate.The utility model is set by the cooperation of mounting plate, take-up drum, toothed disc, mounting seat, shaft and gear, so that it can synchronously drive all take-up drum rotation, the position of gear can also be adjusted by sliding shaft, in turn drive subsequent take-up drum rotation pay-off, only need to move device to the side of required detection, without moving to the middle of detection place, compared with longer tunnel, this method saves the time of moving device, more time-saving and labor-saving.

Description

Technical Field

[0001] This utility model relates to the technical field of ultrasonic detection, and in particular to a cross-hole ultrasonic detection device for the relaxation range of tunnel blasting. Background Technology

[0002] Tunnels are key and critical engineering projects in the construction of highways, railways, and other infrastructure. With the development of railway construction and technological advancements, tunnel excavation methods have evolved rapidly. Commonly used methods include drill-and-blast, shield tunneling, and tunnel boring machine (TBM) excavation. Because the drill-and-blast method is highly adaptable to geological conditions and has low excavation costs, it is particularly suitable for the construction of tunnels in hard rock, fractured rock, and numerous short tunnels. Therefore, the drill-and-blast method remains the most commonly used tunnel excavation method both domestically and internationally.

[0003] Before and after tunnel blasting, ultrasonic detectors are needed to detect the relaxation range of the surrounding rock mass. Specifically, holes are drilled sequentially at the required detection locations, and then the probe head is inserted into the holes. Ultrasonic detection is then performed, and the detected structure is displayed by the detector. This determines the relaxation depth of the rock mass around the tunnel or near the slope caused by the excavation, thereby evaluating the stability of the surrounding rock and slope, and then determining the amount of explosives required.

[0004] When using ultrasonic detectors, due to the long wires of the probes and the large number of probes, multiple take-up drums are used to retrieve the wires. Each time, one take-up drum needs to be controlled individually to release the wires, which is time-consuming, labor-intensive, and inconvenient to move. Based on this, we propose a cross-hole ultrasonic detection device for the relaxation range of tunnel blasting. Utility Model Content

[0005] To address the problem mentioned above where ultrasonic detectors require multiple take-up reels to retrieve the long probe wires and numerous probes, necessitating individual control of one reel for each use, resulting in time-consuming and labor-intensive operation, this invention provides a cross-hole ultrasonic detection device for the relaxation range of tunnel blasting.

[0006] This utility model provides a cross-hole ultrasonic detection device for the relaxation range of tunnel blasting, adopting the following technical solution:

[0007] A cross-hole ultrasonic detection device for the relaxation range of tunnel blasting includes a mounting plate, a plurality of take-up drums are connected to the top of the mounting plate, a transmission structure for driving the take-up drums to rotate is provided on the mounting plate, and a locking structure for preventing the take-up drums from reversing is also provided on the mounting plate, the transmission structure and the locking structure cooperating.

[0008] The transmission structure includes two mounting seats, both of which are mounted on the top of the mounting plate. A shaft is movably connected between the two mounting seats. Multiple gears are fixedly sleeved on the outer side of the shaft. A gear plate is mounted on the top of the mounting plate near the take-up drum. The gears drive the take-up drum to rotate by meshing with the gear plate.

[0009] By adopting the above technical solution, when it is necessary to reel in or unleash the wire, the control shaft rotates, which drives multiple gears to rotate synchronously. These gears mesh with the gear disc, causing multiple take-up drums to rotate and reel in the wire. Since the shaft can slide on the mounting base, the operator can adjust the position of the gears by sliding the shaft. Different take-up drums can be controlled sequentially simply by sliding the shaft. There is no need to move the entire assembly to the center of the required detection location. The probe can be controlled to perform detection by reeling in or unleashing the wire, which is more time-saving and labor-saving.

[0010] Optionally, the width of each gear is twice that of the previous gear.

[0011] By adopting the above technical solution, during the sliding process of the shaft, the first gear and the first toothed disc separate, while the second gear slides on the second toothed disc at the distance of the first gear and continues to mesh. Subsequent gears and toothed discs come into contact in this manner, thereby enabling the sequential control of the rotation of different take-up drums.

[0012] Optionally, a connecting rod is slidably connected between the two mounting seats. Both ends of the connecting rod and the shaft pass through the mounting seats. The shaft and the connecting rod are connected by a connecting plate. The shaft is rotatably connected to the connecting plate, and the connecting rod is fixedly connected to the connecting plate.

[0013] By adopting the above technical solution, the connecting plate is set so that the connecting rod and shaft are limited on the mounting base, restricting their adjustment distance and ensuring that the shaft and connecting rod will not detach from the mounting base.

[0014] Optionally, one end of the shaft is connected to a rotating handle, and a glove is fitted onto the rotating handle.

[0015] By adopting the above technical solution, rotating the handle can drive the shaft to rotate, and the glove will also rotate on the handle as the angle of the handle changes.

[0016] Optionally, a plurality of connecting rods adapted to the gear are fixedly sleeved on the outer side of the connecting rod, and an abutment block is connected to the end of the connecting rod away from the connecting rod. The abutment block cooperates with the locking structure.

[0017] By adopting the above technical solution, in the initial state, the abutting block abuts against the locking structure. At this time, the locking structure does not contact the toothed disc. After the abutting block moves to one side and separates from the locking structure, the locking structure and the toothed disc engage, thereby locking the toothed disc and effectively preventing the toothed disc from rotating backward.

[0018] Optionally, the locking structure includes a mounting bracket connected to the top of the mounting plate, and an abutment block rotatably connected to the top of the mounting bracket, with the abutment block abutting against the top of the abutment block;

[0019] The abutment block has a first wedge-shaped groove, which is located on the side of the abutment block near the rotating handle. The abutment card has a second wedge-shaped groove, which is located on the side of the abutment card away from the rotating handle. The first wedge-shaped groove and the second wedge-shaped groove cooperate with each other.

[0020] By adopting the above technical solution, the locking structure design allows the coil to be immediately limited without rotating the toothed disc, preventing it from reversing due to external force, thus making the measurement more accurate. Furthermore, the pressure on the contact plate can be applied or released by moving the coil, eliminating the need for additional force to control the contact plate, making it simple and convenient to use.

[0021] Optionally, the contact card is rotatably mounted on the mounting frame via a limiting shaft, and a torque spring is sleeved on the limiting shaft. The two ends of the torque spring are respectively connected to the side wall of the mounting frame and the contact card.

[0022] By adopting the above technical solution, the limiting shaft is used to limit the rotation angle of the contact card, so that the contact card can only rotate at the required angle, and the torque spring is set so that it can automatically reset after losing pressure, without the need for additional operation.

[0023] Optionally, casters are installed at the four corners of the bottom of the mounting plate, and brakes are provided on the casters;

[0024] A push rod is fixedly connected to one side wall of the mounting plate, and the push rod has an inclined structure.

[0025] By adopting the above technical solution, the staff can push the mounting plate by holding the push rod. Compared with the design of the straight rod structure, the inclined push rod is more suitable for the user to push. After the mounting plate is subjected to force, it will move through the casters and be braked by the brake components after it is moved to the place where it is needed.

[0026] In summary, this utility model has at least one of the following beneficial effects:

[0027] By using a combination of mounting plate, take-up drum, gear disc, mounting base, shaft, and gears, the device can synchronously drive all take-up drums to rotate. The position of the gears can also be adjusted by sliding the shaft to sequentially drive the subsequent take-up drums to rotate and release the line. The device only needs to be moved to one side of the area to be detected, without having to move it to the middle of the area. Compared to longer tunnels, this method saves time and effort by moving the device.

[0028] By cooperating with the connecting rod, the contact block, the first wedge groove, the mounting bracket, the limit shaft, the torque spring, the contact card, and the second wedge groove, the toothed disc is locked after the wire feeding is finished, thus locking the take-up drum to prevent it from rotating backward and affecting the detection accuracy. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0032] Figure 3 This is a schematic diagram of the transmission structure of this utility model;

[0033] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0034] Figure 5 This is a schematic diagram of the locking structure of this utility model.

[0035] In the diagram: 1. Mounting plate; 2. Push rod; 3. Take-up reel; 4. Gear disc; 5. Mounting base; 6. Shaft; 7. Rotating handle; 8. Connecting rod; 9. Connecting plate; 10. Gear; 11. Connecting rod; 12. Abutting block; 13. First wedge groove; 14. Mounting bracket; 15. Limiting shaft; 16. Torque spring; 17. Abutting clip; 18. Second wedge groove. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0037] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 This utility model provides an embodiment of a cross-hole ultrasonic detection device for the relaxation range of tunnel blasting, comprising a mounting plate 1. Universal wheels are installed at the four corners of the bottom of the mounting plate 1, and brakes are provided on the universal wheels. A push rod 2 is fixedly connected to one side wall of the mounting plate 1, and the push rod 2 has an inclined structure. Workers can push the mounting plate 1 by holding the push rod 2. Compared to a straight rod design, the inclined push rod 2 is more suitable for users to push. When the mounting plate 1 is subjected to force, it will move via the universal wheels, and after reaching the desired location, it will be braked by the brakes.

[0038] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 The top of the mounting plate 1 is connected to multiple take-up drums 3. The mounting plate 1 is equipped with a transmission structure for driving the take-up drums 3 to rotate. The mounting plate 1 is also equipped with a locking structure for preventing the take-up drums 3 from reversing. The transmission structure and the locking structure cooperate with each other.

[0039] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 The transmission structure includes two mounting seats 5, both of which are mounted on the top of the mounting plate 1. A shaft 6 is movably connected between the two mounting seats 5. One end of the shaft 6 is connected to a rotating handle 7, and a handle glove is fitted onto the rotating handle 7. Rotating the rotating handle 7 drives the shaft 6 to rotate, and the handle glove also rotates on the rotating handle 7 as the angle of the rotating handle 7 changes.

[0040] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 3 A connecting rod 8 is slidably connected between the two mounting seats 5. Both ends of the connecting rod 8 and the shaft 6 pass through the mounting seats 5. The shaft 6 and the connecting rod 8 are connected by a connecting plate 9. The shaft 6 is rotatably connected to the connecting plate 9, and the connecting rod 8 is fixedly connected to the connecting plate 9. The connecting plate 9 limits the connecting rod 8 and the shaft 6 to the mounting seats 5, restricting their adjustment distance and ensuring that the shaft 6 and the connecting rod 8 will not detach from the mounting seats 5.

[0041] Please refer to the attached diagram in the instruction manual. Figure 3 and Figure 4Multiple gears 10 are fixedly sleeved on the outer side of the shaft 6. A gear disc 4 is installed on the top of the mounting plate 1 near the take-up drum 3. Multiple connecting rods 11 adapted to the gears 10 are fixedly sleeved on the outer side of the connecting rod 8. A contact block 12 is connected to the end of the connecting rod 11 away from the connecting rod 8. The contact block 12 cooperates with the locking structure. In the initial state, the contact block 12 abuts against the locking structure. At this time, the locking structure does not contact the gear disc 4. After the contact block 12 moves to one side and separates from the locking structure, the locking structure and the gear disc 4 engage, thereby locking the gear disc 4 and effectively preventing the gear disc 4 from rotating backward.

[0042] Please refer to the attached diagram in the instruction manual. Figure 3 , Figure 4 and Figure 5 The locking structure includes a mounting bracket 14 connected to the top of the mounting plate 1. An abutment clip 17 is rotatably connected to the top of the mounting bracket 14. An abutment block 12 abuts against the top of the abutment clip 17. The abutment block 12 has a first wedge-shaped groove 13 located on the side of the abutment block 12 closest to the rotating handle 7. The abutment clip 17 has a second wedge-shaped groove 18 located on the side of the abutment clip 17 opposite to the rotating handle 7. The first wedge-shaped groove 13 and the second wedge-shaped groove 18 cooperate with each other. The locking structure design allows for immediate positioning of the gear disc 4 without causing it to rotate, preventing the take-up reel 3 from reversing due to external force, thus improving measurement accuracy. Furthermore, pressure on the abutment clip 17 can be applied or released by movement, eliminating the need for additional force to control the abutment clip 17, making it simple and convenient to use.

[0043] Please refer to the attached diagram in the instruction manual. Figure 4 and Figure 5 The contact card 17 is rotatably mounted on the mounting bracket 14 via a limiting shaft 15. A torque spring 16 is sleeved on the limiting shaft 15, with its two ends connected to the mounting bracket 14 and the side wall of the contact card 17, respectively. The limiting shaft 15 is designed to restrict the rotation angle of the contact card 17, ensuring that the contact card 17 can only rotate at the required angle. Furthermore, the torque spring 16 allows it to automatically reset after the pressure is released, requiring no additional operation.

[0044] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 The gear 10 drives the take-up drum 3 to rotate by meshing with the gear disc 4. The width of each gear 10 is twice that of the previous gear 10. As the shaft 6 slides, the first gear 10 separates from the first gear disc 4, while the second gear 10 slides on the second gear disc 4 to the distance of the first gear 10 and continues to mesh. Subsequent gears 10 contact the gear disc 4 in this manner, thus enabling the sequential control of the rotation of different take-up drums 3.

[0045] Working principle: When in use, the operator can push the mounting plate 1 by holding the push rod 2. After the mounting plate 1 is subjected to force, it will move through the casters. After moving to the place where it is needed, it will be braked by the brake. In the initial state, the abutment block 12 abuts against the abutment card 17. At this time, the abutment card 17 does not contact the gear plate 4. When it is necessary to take in and out the line, rotate the handle 7. Rotating the handle 7 drives the shaft 6 to rotate. The shaft 6 rotates on the connecting plate 9, while the connecting rod 8 does not rotate. The rotation of the shaft 6 will drive multiple gears 10 to rotate synchronously. The multiple gears 10 and multiple gear plates 4 mesh to drive multiple take-up drums 3 to rotate to take in and out the line.

[0046] Since the shaft 6 can slide on the mounting base 5, and the width of each gear 10 is twice that of the previous gear 10, the operator can adjust the position of the gear 10 by sliding the shaft 6. When the shaft 6 slides, the first gear 10 separates from the first gear 4, and the second gear 10 slides on the second gear 4 to the distance of the first gear 10, so that the second gear 10 continues to mesh with the second gear 4. Subsequent gears 10 and gear 4 contact each other in this manner. Then the shaft 6 can be rotated to drive the subsequent take-up drum 3 to rotate, while the first take-up drum 3 loses its meshing with the gear 10 and remains stationary. Different take-up drums 3 can be controlled sequentially by simply sliding the position of the shaft 6. There is no need to move the whole thing to the center of the position to be detected. It can be moved close to the position to be detected and the detection head can be controlled by winding and unwinding the line to detect it, which is more time-saving and labor-saving.

[0047] After the take-up and take-up are completed, the connecting rod 11 is moved by the sliding shaft 6. The connecting rod 11 moves the abutment block 12 to one side until the abutment block 12 separates from the abutment card 17. Under the elastic force of the torque spring 16, the abutment card 17 automatically resets and engages with the gear disk 4, thereby locking the gear disk 4 and preventing the gear disk 4 from reversing. This avoids the take-up drum 3 from continuing to rotate after the take-up is finished, which would affect the detection accuracy. When the abutment block 12 moves to the other side and contacts the abutment card 17, the first wedge groove 13 will contact the second wedge groove 18. As it continues to move, it will continuously apply a downward abutment force to the abutment card 17, pressing the abutment card 17 down, thereby causing the abutment card 17 to rotate downward and separate from the gear disk 4 again.

[0048] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cross-hole ultrasonic detection device for the relaxation range of tunnel blasting, comprising a mounting plate (1), wherein a plurality of take-up drums (3) are connected to the top of the mounting plate (1), characterized in that: The mounting plate (1) is provided with a transmission structure for driving the take-up drum (3) to rotate, and the mounting plate (1) is also provided with a locking structure for preventing the take-up drum (3) from reversing. The transmission structure and the locking structure cooperate with each other. The transmission structure includes two mounting seats (5), both of which are mounted on the top of the mounting plate (1). A shaft (6) is movably connected between the two mounting seats (5). Multiple gears (10) are fixedly sleeved on the outside of the shaft (6). A gear plate (4) is mounted on the top of the mounting plate (1) near the take-up drum (3). The gears (10) drive the take-up drum (3) to rotate by meshing with the gear plate (4).

2. The cross-hole ultrasonic detection device for the relaxation range of tunnel blasting according to claim 1, characterized in that: Each gear (10) is twice as wide as the previous gear (10).

3. The device for tunnel blasting relaxation range across hole ultrasonic detection according to claim 1, characterized in that: A connecting rod (8) is slidably connected between the two mounting seats (5). Both ends of the connecting rod (8) and the shaft (6) pass through the mounting seat (5). The shaft (6) and the connecting rod (8) are connected by a connecting plate (9). The shaft (6) is rotatably connected to the connecting plate (9), and the connecting rod (8) is fixedly connected to the connecting plate (9).

4. The cross-hole ultrasonic detection device for the relaxation range of tunnel blasting according to claim 1, characterized in that: One end of the shaft (6) is connected to a rotating handle (7), and a glove is fitted on the rotating handle (7).

5. The device for trans-cavity ultrasonic detection of tunnel blasting relaxation range according to claim 3, characterized in that: Multiple connecting rods (11) adapted to the gear (10) are fixedly sleeved on the outside of the connecting rod (8). An abutment block (12) is connected to one end of the connecting rod (11) away from the connecting rod (8). The abutment block (12) cooperates with the locking structure.

6. The device for trans-cavity ultrasonic detection of tunnel blasting relaxation range according to claim 5, characterized in that: The locking structure includes a mounting bracket (14), which is connected to the top of the mounting plate (1). An abutment card (17) is rotatably connected to the top of the mounting bracket (14), and the abutment block (12) abuts against the top of the abutment card (17). The abutment block (12) is provided with a first wedge groove (13), and the first wedge groove (13) is provided on the side of the abutment block (12) close to the rotating handle (7). The abutment card (17) is provided with a second wedge groove (18), and the second wedge groove (18) is provided on the side of the abutment card (17) away from the rotating handle (7). The first wedge groove (13) and the second wedge groove (18) cooperate with each other.

7. The cross-hole ultrasonic detection device for the relaxation range of tunnel blasting according to claim 6, characterized in that: The contact card (17) is rotatably mounted on the mounting frame (14) via a limiting shaft (15). A torque spring (16) is sleeved on the limiting shaft (15), and the two ends of the torque spring (16) are respectively connected to the side walls of the mounting frame (14) and the contact card (17).

8. The cross-hole ultrasonic detection device for the relaxation range of tunnel blasting according to claim 1, characterized in that: The mounting plate (1) is equipped with casters at the four corners at the bottom, and the casters are equipped with brakes. A push rod (2) is fixedly connected to one side wall of the mounting plate (1), and the push rod (2) has an inclined structure.

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