Tunnel blasting hole detection device

Abstract

The utility model discloses a tunnel blasting blast hole detection device, and relates to the field of tunnel blasting, the tunnel blasting blast hole detection device comprises a measuring rod, the measuring rod is provided with corresponding scale marks, one end of the measuring rod is connected with a telescopic rod, the telescopic rod is provided with corresponding scale marks, and the measuring rod is slidably provided with a fixing mechanism used for making the measuring rod correspond to the axis of a blast hole. The method has the effect of improving the measurement accuracy of the tunnel blasting hole.

Description

Technical Field

[0001] The present application relates to the field of tunnel blasting, and in particular to a tunnel blasting blasthole detection device. Background Art

[0002] In order to effectively control the over-excavation and over-consumption of concrete in tunnel blasting construction sites, it is necessary to strictly control the blasting parameters, among which the spacing between blastholes is one of the important key factors. The tunnel face is not flat during tunnel excavation, but uneven. The site mainly relies on tape measure for measurement, and the measurement result is not accurate. A large number of holes need to be drilled during large-section tunnel excavation and blasting. There is currently no intelligent device for measuring the spacing between blastholes. Therefore, a device for quickly measuring the spacing between blastholes is needed to achieve the purpose of quickly measuring and mastering the spacing between blastholes without affecting the construction progress of workers.

[0003] The existing Chinese invention patent with publication number CN202111427338.1 discloses a device for rapid measurement of tunnel blasting hole depth and spacing, which realizes the depth of tunnel blasting holes and the spacing between adjacent tunnel blasting holes through a measuring rod and a movable rod respectively. This method improves the traditional blasting hole measuring devices, which can only realize the measurement of a single spacing or depth, and cannot quickly realize the measurement of the blasting hole spacing and depth separately. Therefore, different measuring tools are required, and it is also easy to cause inaccurate measurement data.

[0004] In the process of realizing the above application, the inventors found that there are at least the following problems in this technology: when the surveyors measure the tunnel blasting holes, due to the different angles between the tunnel blasting holes and the ground, the measuring rod may not be consistent with the axis of the tunnel blasting holes, resulting in deviations in the measurement of the tunnel blasting hole depth and the distance between adjacent tunnel blasting holes, and the inability to guarantee the accuracy of the data related to the measurement of the tunnel blasting holes, which affects the blasting construction of the tunnel. Utility Model Content

[0005] In order to improve the measurement accuracy of tunnel blasting blastholes, the present application provides a tunnel blasting blasthole detection device.

[0006] The present application provides a tunnel blasting hole detection device that adopts the following technical solution:

[0007] A tunnel blasting blasthole detection device comprises a measuring rod with corresponding scale lines, a telescopic rod connected to one end of the measuring rod with corresponding scale lines, and a fixing mechanism for aligning the measuring rod with the blasthole axis is slidably arranged on the measuring rod.

[0008] By adopting the above technical solution, the measuring rod is aligned with the axis of the blasthole through a fixing mechanism, so that the measuring rod and the axis of the blasthole coincide with each other, thereby improving the measurement accuracy of the tunnel blasting blasthole, reducing the deviation in the measurement of the tunnel blasting blasthole depth and the distance between adjacent tunnel blasting blastholes caused by the offset between the measuring rod and the axis of the blasthole, and thereby reducing the probability of deviation in the accuracy of the blasthole measurement data of the equipment.

[0009] Optionally, the fixing mechanism includes a fixing ring, on which a plurality of first push rods are rotatably arranged, the first push rods are rotatably connected to one end away from the fixing ring with a second push rod, the second push rods are rotatably connected to the measuring rod at one end close to the measuring rod, and a fixing block is provided at one end of the second push rod away from the measuring rod.

[0010] By adopting the above technical solution, the operator pushes the fixing ring to displace the fixing ring on the measuring rod, thereby driving the first push rod to displace. The displacement of the first push rod drives the second push rod to rotate around the rotation connection at one end of the measuring rod, thereby causing the fixing block to be radially and axially displaced relative to the measuring rod and causing the fixing block to abut against the inner wall of the blasthole. In this way, the reverse extrusion force transmitted by the inner wall of the blasthole during the process of the fixing mechanism abutting against the inner wall of the blasthole causes the axis of the measuring rod to coincide with the axis of the blasthole, thereby improving the measurement accuracy of tunnel blasting blastholes.

[0011] Optionally, a curved surface is formed at one end of the fixing block.

[0012] By adopting the above technical solution, the arc surface fits better with the inner wall of the blast hole, reducing the probability of the fixing mechanism causing damage to the inner wall of the blast hole during the fixing process.

[0013] Optionally, the second push rod is rotatably connected to the fixed block.

[0014] By adopting the above technical solution, the second push rod is rotatably connected to the fixed block to adapt to blast holes of different apertures, thereby improving the application range of the equipment.

[0015] Optionally, a dovetail groove is provided on the measuring rod, the dovetail groove is provided along the axial direction of the measuring rod, a slider is provided on the dovetail groove and slides along the length direction of the dovetail groove, the slider matches the shape of the dovetail groove, and the end of the slider away from the dovetail groove is connected to the fixing ring.

[0016] By adopting the above technical solution, the dovetail groove reduces the probability of horizontal angle changes in the fixed ring during the sliding process of the measuring rod, thereby improving the measurement accuracy of tunnel blasting holes.

[0017] Optionally, the telescopic rod is rotatably arranged on the measuring rod, and the telescopic rod is provided with a measuring device for measuring the angle between the telescopic rod and the measuring rod.

[0018] By adopting the above technical solution, when measuring the distance between adjacent blast holes, the operator can determine the angle between the telescopic rod and the measuring rod through the angle measuring device to improve the measurement accuracy of the tunnel blasting blast holes.

[0019] Optionally, a storage groove is provided on the measuring rod, and the storage groove matches the shape of the telescopic rod.

[0020] By adopting the above technical solution, the storage groove is used to store the telescopic rod, thereby reducing the space occupancy rate of the equipment.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The operator pushes the fixing ring to displace the fixing ring on the measuring rod, thereby driving the first push rod to displace. The displacement of the first push rod drives the second push rod to rotate around one end of the measuring rod, thereby causing the fixing block to displace radially and axially relative to the measuring rod and abutting the inner wall of the blasthole. In this way, the reverse extrusion force transmitted by the inner wall of the blasthole during the abutment of the fixing mechanism against the inner wall of the blasthole causes the axis of the measuring rod to coincide with the axis of the blasthole, thereby improving the measurement accuracy of tunnel blasting blastholes.

[0023] 2. The storage slot is used to store the telescopic rod to reduce the space occupancy of the equipment. The operator can adjust the storage or extension state of the telescopic rod in time according to the actual situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the structure of a tunnel blasting hole detection device.

[0025] Figure 2 The present invention is a schematic diagram of the structure of a tunnel blasting hole detection device from another perspective.

[0026] Figure 3 It is a top view of a tunnel blasting blasthole detection device.

[0027] Description of reference numerals:

[0028] 1. Measuring rod; 2. Telescopic rod; 3. Fixed ring; 4. First push rod; 5. Second push rod; 6. Fixed block; 7. Dovetail groove; 8. Slider; 9. Storage groove. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 This application is described in further detail.

[0030] The present application embodiment discloses a tunnel blasting hole detection device. Figure 1-3, including a measuring rod 1, on which corresponding scale lines are arranged, one end of the measuring rod 1 is connected to a telescopic rod 2, on which corresponding scale lines are arranged, and a fixing mechanism for making the measuring rod 1 correspond to the axis of the blasthole is slidably arranged on the measuring rod 1; the measuring rod 1 is made to correspond to the axis of the blasthole through the fixing mechanism, so that the measuring rod 1 coincides with the axis of the blasthole, thereby improving the measurement accuracy of the tunnel blasting blasthole, reducing the deviation in the measurement of the depth of the tunnel blasting blasthole and the spacing between adjacent tunnel blasting blastholes caused by the offset between the measuring rod 1 and the axis of the blasthole, thereby reducing the probability of the equipment's deviation in the accuracy of the blasthole measurement data; the fixing mechanism includes a fixing ring 3, on which a plurality of first push rods 4 are rotatably arranged, and the first push rods 4 are rotatably connected to the second push rods at one end away from the fixing ring 3 Rod 5, the second push rod 5 is rotatably connected to the measuring rod 1 at one end close to the measuring rod 1, and a fixing block 6 is provided at the end of the second push rod 5 away from the measuring rod 1; in this embodiment, four first push rods 4, second push rods 5 and fixing blocks 6 are provided; the operator pushes the fixing ring 3 to displace the fixing ring 3 on the measuring rod 1, thereby driving the first push rod 4 to displace, and the displacement of the first push rod 4 drives the second push rod 5 to rotate around the end of the measuring rod 1 that is rotatably connected, thereby causing the fixing block 6 to be radially and axially displaced relative to the measuring rod 1 and causing the fixing block 6 to abut against the inner wall of the blasthole. In this way, the reverse extrusion force transmitted by the inner wall of the blasthole during the process of the fixing mechanism abutting against the inner wall of the blasthole makes the axis of the measuring rod 1 coincide with the axis of the blasthole, thereby improving the measurement accuracy of tunnel blasting blastholes. In this embodiment, the rotation connection includes but is not limited to connection methods such as hinge, clamping and bolting. In this embodiment, hinge is preferred; an arc surface is provided at one end of the fixing block 6; the arc surface fits better with the inner wall of the blast hole, reducing the probability of the fixing mechanism causing damage to the inner wall of the blast hole during the fixing process. At the same time, in this embodiment, a rubber pad for flexible abutment is provided at one end of the fixing block 6 that abuts against the inner wall of the blast hole; the second push rod 5 is rotatably connected to the fixing block 6; the second push rod 5 is rotatably connected to the fixing block 6 to adapt to blast holes of different apertures, and the applicable range of the lifting equipment Surrounding; in this embodiment, the rotation connection includes but is not limited to connection methods such as hinged, clamped and bolted, and hinged is preferred in this embodiment; a dovetail groove 7 is provided on the measuring rod 1, and the dovetail groove 7 is provided along the axial direction of the measuring rod 1. The dovetail groove 7 is provided with a slider 8 sliding along the length direction of the dovetail groove 7, and the slider 8 matches the shape of the dovetail groove 7, and the end of the slider 8 away from the dovetail groove 7 is connected to the fixing ring 3; the dovetail groove 7 reduces the probability of the fixing ring 3 changing its horizontal angle during the sliding process of the measuring rod 1, thereby improving the measurement accuracy of the tunnel blasting borehole.

[0031] Reference Figure 1-3The telescopic rod 2 is rotatably arranged on the measuring rod 1, and a measuring device for measuring the angle between the telescopic rod 2 and the measuring rod 1 is provided on the telescopic rod 2; when measuring the spacing between adjacent blast holes, the operator can determine the angle between the telescopic rod 2 and the measuring rod 1 through the angle measuring device to improve the measurement accuracy of the tunnel blasting blast holes. At the same time, since the angle measuring device is a prior art, it will not be described in detail in this embodiment; a storage groove 9 is provided on the measuring rod 1, and the storage groove 9 matches the shape of the telescopic rod 2; the storage groove 9 is used to store the telescopic rod 2, reducing the space occupancy rate of the equipment.

[0032] The implementation principle of a tunnel blasting blasthole detection device in an embodiment of the present application is as follows: an operator pushes the fixing ring 3 to displace the fixing ring 3 on the measuring rod 1, thereby driving the first push rod 4 to displace. The displacement of the first push rod 4 drives the second push rod 5 to rotate around one end of the measuring rod 1, thereby causing the fixing block 6 to be radially and axially displaced relative to the measuring rod 1 and causing the fixing block 6 to abut against the inner wall of the blasthole. In this way, the reverse extrusion force transmitted by the inner wall of the blasthole during the process of the fixing mechanism abutting against the inner wall of the blasthole causes the axis of the measuring rod 1 to coincide with the axis of the blasthole, thereby improving the measurement accuracy of the tunnel blasting blasthole; at the same time, the operator can adjust the storage or extension state of the telescopic rod 2 in time according to the actual situation.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tunnel blasting blasthole detection device, comprising a measuring rod (1), the measuring rod (1) being provided with corresponding scale lines, one end of the measuring rod (1) being connected to a telescopic rod (2), the telescopic rod (2) being provided with corresponding scale lines, characterized in that: A fixing mechanism for making the measuring rod (1) correspond to the axis of the blast hole is slidably arranged on the measuring rod (1).

2. A tunnel blasting hole detection device according to claim 1, characterized in that: The fixing mechanism comprises a fixing ring (3), on which a plurality of first push rods (4) are rotatably arranged, one end of the first push rod (4) away from the fixing ring (3) is rotatably connected to a second push rod (5), one end of the second push rod (5) close to the measuring rod (1) is rotatably connected to the measuring rod (1), and a fixing block (6) is provided at one end of the second push rod (5) away from the measuring rod (1).

3. A tunnel blasting hole detection device according to claim 2, characterized in that: One end of the fixing block (6) is provided with an arc surface.

4. A tunnel blasting hole detection device according to claim 2, characterized in that: The second push rod (5) is rotatably connected to the fixed block (6).

5. The tunnel blasting hole detection device according to claim 2, characterized in that: A dovetail groove (7) is provided on the measuring rod (1), the dovetail groove (7) is provided along the axial direction of the measuring rod (1), a slider (8) is provided on the dovetail groove (7) and slides along the length direction of the dovetail groove (7), the slider (8) matches the shape of the dovetail groove (7), and one end of the slider (8) facing away from the dovetail groove (7) is connected to the fixing ring (3).

6. A tunnel blasting hole detection device according to claim 1, characterized in that: The telescopic rod (2) is rotatably arranged on the measuring rod (1), and a measuring device for measuring the angle between the telescopic rod (2) and the measuring rod (1) is provided on the telescopic rod (2).

7. The tunnel blasting hole detection device according to claim 1, characterized in that: The measuring rod (1) is provided with a receiving groove (9), and the shape of the receiving groove (9) matches that of the telescopic rod (2).

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