Hole detection device for blasting construction

Abstract

The utility model provides a hole detection device for blasting construction, which comprises a base, and a winding drum, a driving motor and a control module are mounted on the base. A rotating shaft of the winding drum is in transmission connection with a driving motor; a detection line is wound on the winding drum; the detection line is integrated with a data transmission line, one end of the detection line is fixed on the winding drum, the data transmission line at the end is connected with the control module, and the other end of the detection line is a movable end; the movable end is connected with the top of the detection base, a plurality of infrared distance measurement probes are installed on the detection base, each infrared distance measurement probe is in communication connection with the control module through a data transmission line, and the infrared distance measurement probes comprise at least two pairs of side face probes and at least one bottom probe; the side surface probes are arranged on the side surface of the detection base at intervals; and the bottom probe is mounted at the bottom of the detection base. The device can accurately detect whether holes and cracks exist in the blast holes or not, an operator can conveniently determine the general form of the holes, the explosive filling amount can be conveniently analyzed, and the blasting safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting detection equipment, in particular to a hole detection device used in blasting construction. Background Art

[0002] One method used in open-pit blasting is the blasthole method. Due to varying geological conditions, blastholes may contain various structures, such as cavities. When filling with explosives, these structures can easily enter these cavities, leading to uncertainty about the proper amount of explosives to be filled, potentially leading to leakage or waste, which can pose a significant safety hazard. Therefore, it is crucial to determine the presence of cavities within the blasthole, as well as their location and height, to facilitate the appropriate selection of the explosive charge layout and loading quantity.

[0003] To this end, the patent document with announcement number CN113899270B provides a hole detection device and measurement method for blasting construction. Through the hole detection device, pre-testing can be carried out to timely discover the hole areas such as karst caves and caves in the blasthole. The position and height of the hole can be recorded in advance, and a reasonable charging arrangement can be selected to avoid the explosives being scattered in the hole, causing waste and incomplete explosion, and residual safety hazards. However, this patent document requires manual recording of the hole position, which is not convenient enough, and it is impossible to clearly determine the size and direction of the determined hole. In other words, it is impossible to clearly determine whether the hole is formed upward or downward. Different forms of the hole will result in different filling amounts. In other words, the existing detection device can only detect whether there is a hole, but cannot determine the specific form of the hole. Moreover, the detection method is not convenient enough and the operation is relatively cumbersome. Utility Model Content

[0004] In view of the above, it is necessary to provide a hole detection device for blasting construction, which can accurately detect whether there are holes and cracks in the blasthole, and can facilitate operators to clearly understand the approximate form of the hole, facilitate analysis of the explosive filling amount, and improve blasting safety.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0006] A hole detection device for blasting construction comprises a base, on which a winding drum, a drive motor and a control module are installed; the rotating shaft of the winding drum is connected to the drive motor, and a detection line is wound on the winding drum; the detection line is integrated with a data transmission line, one end of the detection line is fixed on the winding drum, the data transmission line of this end is connected to the control module, and the other end of the detection line is a movable end; the movable end is connected to the top of the detection base, and a plurality of infrared ranging probes are installed on the detection base, each infrared ranging probe is connected to the control module through the data transmission line, and the infrared ranging probes include at least two pairs of side probes and at least one bottom probe; the side probes are installed at intervals on the sides of the detection base, and the side probes of the same pair are installed at the same height and are symmetrically distributed on the detection base; the bottom probe is installed at the bottom of the detection base, and the detection direction is downward;

[0007] The control module includes a controller, a timing module, a power module and a display module. The controller is connected to the infrared ranging probe, the driving motor, the timing module, the power module and the display module respectively.

[0008] Preferably, the detection base is detachably connected to the movable end.

[0009] Preferably, the hole detection device for blasting construction also includes a positioning cylinder for the detection line to move through, and at least one pair of support rods is provided on the side wall of the positioning cylinder. The two rods of each pair of support rods are symmetrically arranged on the positioning cylinder, and a scale line is provided on the top of each rod.

[0010] Preferably, a fixed pulley is provided on the top of the positioning cylinder, and the fixed pulley supports the detection line so that the detection line passes through the positioning cylinder from the center line of the positioning cylinder.

[0011] Preferably, the inner diameter of the positioning cylinder is larger than the outer size of the detection base.

[0012] Preferably, two pairs of support rods are installed on the positioning cylinder, and the four rods of the two pairs of support rods are in a cross structure.

[0013] Preferably, each support rod is a telescopic structure.

[0014] Preferably, an operating handle is installed on the base.

[0015] Preferably, a moving wheel is installed on the base, the wheel rod of the moving wheel is rotatably connected to the base, the bottom of the moving wheel is located below or above the bottom of the base through the rotation of the wheel rod relative to the base, and a locking part is installed on the base to prevent the wheel rod from rotating relative to the base.

[0016] Preferably, the locking member is a U-shaped card rod, the U-shaped card rod is slidably connected to the base, and the U-shaped opening of the U-shaped card rod is connected to the wheel rod by sliding relative to the base.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The utility model detects the depth of the blasthole and the distance between the hole wall and the detection base through the infrared ranging probe. The radial size of the blasthole along its depth direction can be measured by the distance between the hole wall and the detection base obtained by each pair of lateral probes. Through the difference in the measured radial sizes, it can be known whether there are holes, cracks, etc. within the range of the blasthole. Moreover, based on the time of data transmission and the time information measured by the timing module, the time of measurement of each radial size can be obtained. Combined with the speed of the driving motor, the height position matched by each radial size can be obtained, thereby obtaining the height position of the hole, which makes it easier for staff to clearly determine the position and height of the hole. Combined with the specific value of the radial size, the approximate form of the hole can also be obtained, which is convenient for staff to choose a reasonable charging arrangement method, avoid waste, and improve the safety of blasting.

[0019] 2. The utility model uses infrared ranging method, combined with the height position obtained by timing, motor speed, etc., to automatically measure the height position of the hole, without the need for manual recording and measurement. It is more operational and has better effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the first embodiment of the present utility model.

[0021] Figure 2 This is a top view of the positioning tube.

[0022] Figure 3 It is a structural schematic diagram of the utility model when in use.

[0023] Figure 4 It is a structural diagram of the base in the second embodiment of the present invention.

[0024] Figure 5 yes Figure 4 Schematic diagram of the structure when the middle moving wheel is not in use.

[0025] Figure 6 This is a partial schematic diagram of the moving wheel at one corner of the base when viewed from above. In the figure, the locking member locks the wheel rod.

[0026] Figure 7 yes Figure 6 Schematic diagram of the middle locking piece unlocking the wheel lever.

[0027] Description of main component symbols

[0028] In the figure: base 1, drive motor 2, winding drum 3, detection line 4, detection base 5, infrared ranging probe 6, positioning cylinder 7.1, support rod 7.2, fixed pulley 8, control module 9, moving wheel 10, wheel rod 11, locking piece 12, insertion rod 13.

[0029] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] See also Figure 1-3 In a preferred embodiment of the present utility model, a hole detection device for blasting construction includes a base 1, on which a winding drum 3, a drive motor 2 and a control module 9 are installed; the rotating shaft of the winding drum 3 is connected to the drive motor 2, and a detection line 4 is wound on the winding drum 3; the detection line 4 is integrated with a data transmission line, one end of the detection line 4 is fixed on the winding drum 3, the data transmission line at this end is connected to the control module 9, and the other end of the detection line 4 is a movable end; the movable end is connected to the top of the detection base 5, and a plurality of infrared ranging probes 6 are installed on the detection base 5, each infrared ranging probe 6 is connected to the control module 9 through a data transmission line, and the infrared ranging probe 6 includes at least two pairs of side probes and at least one bottom probe; the side probes are installed at intervals on the sides of the detection base 5, and the side probes of the same pair have the same installation height and are symmetrically distributed on the detection base 5; the bottom probe is installed at the bottom of the detection base 5, and the detection direction is downward;

[0031] The control module 9 includes a controller, a timing module, a power module and a display module. The controller is connected to the infrared ranging probe 6, the driving motor 2, the timing module, the power module and the display module respectively.

[0032] The utility model uses the infrared ranging principle to detect the radial size of the blasthole. Based on the value of the detected radial size, it can be analyzed whether there are holes, cracks, etc. in the blasthole. Based on the time measured by the data, the timing information of the timing module and the rotation speed of the driving motor 2, the hole depth corresponding to each radial size can be obtained, thereby obtaining the specific height position of the holes, cracks, etc. when they exist, which is convenient for workers to obtain various information about the holes intuitively and accurately, and is convenient for workers to choose a reasonable way to fill explosives, thereby improving the convenience of operation.

[0033] Specifically, the infrared ranging uses an infrared ranging probe 6, which transmits data through a data transmission line. The data transmission line is integrated on the detection line 4. The detection line 4 pays out under the action of the driving motor 2 driving the winding drum 3 to rotate at a uniform speed. The detection base 5 on its movable end descends at a uniform speed due to its own weight and under the restriction of the detection line 4. During this descending process, the side probes on the detection base 5 detect the distance from the blasthole wall to the detection base 5 in real time. The two measurement data of each pair of side probes plus the inherent installation distance of the two probes in the same pair of side probes can obtain the radial dimension in a radial direction at a certain depth position of the blasthole. By setting up multiple pairs of side probes, the radial dimensions in different radial directions at a certain depth position of the blasthole can be obtained. The radial dimensions in multiple radial directions can be synthesized into the approximate shape of the blasthole at a certain depth position. In this way, all the measured radial dimensions can be synthesized into the approximate shape of the blasthole. By obtaining the shape, the general situation inside the blasthole can be clearly analyzed, whether it has holes, cracks, etc. and the specific height position and formation situation. The above-mentioned various data and even the three-dimensional structure diagram of the blasthole obtained based on data fitting can be displayed through the display module, so the staff can intuitively understand the situation inside the blasthole.

[0034] It should be noted that the bottom probe of the present invention is provided to clearly determine whether the detection base 5 is close to the bottom of the blast hole; the timing module is used to calculate the rotation time of the drive motor 2, so as to clearly determine the position and depth of the detection base 5 according to this time, and thus facilitate the specific height position of each radial dimension; the power supply module is used to provide power support for each power module of the present invention; the controller serves as the master control, centrally collecting various data and performing data analysis, as well as issuing various control instructions; the display module can display the various data collected by the controller and the data analysis results made by the controller, so that the staff can view the data conveniently.

[0035] In this embodiment, preferably, the detection base 5 is detachably connected to the movable end to facilitate operations such as inspection and replacement of the detection base 5 .

[0036] Preferably, in this embodiment, to ensure the detection base 5 is lowered in a centered manner, the borehole detection device further includes a positioning tube 7.1 through which the detection line 4 can be movably passed. The sidewalls of the positioning tube 7.1 are provided with at least one pair of support rods 7.2. Each pair of support rods 7.2 has two rods symmetrically arranged on the positioning tube 7.1, and each rod is provided with a scale mark on the top. The support rods 7.2 support the positioning tube 7.1 at the mouth of the blasthole, and based on the scale marks on the support rods 7.2, the positioning tube 7.1 can be placed as centered as possible, thereby centered the detection line 4. To achieve better centering, the positioning tube 7.1 is preferably provided with two pairs of support rods 7.2, with the four rods of the two pairs of support rods 7.2 forming a cross-shaped structure. To further enhance the lowering effect of the detection line 4 and reduce the friction of the positioning tube 7.1 on the positioning tube 7.1, a fixed pulley 8 is preferably provided on the top of the positioning tube 7.1. The fixed pulley 8 supports the detection line 4 so that the detection line 4 passes through the positioning tube 7.1 along the centerline of the positioning tube 7.1. Furthermore, to better initially position the detection base 5, the inner diameter of the positioning tube 7.1 is larger than the outer dimensions of the detection base 5, so that the detection base 5 cannot pass through the positioning tube 7.1. Initially, the detection base 5 is placed at the bottom of the positioning tube 7.1. Furthermore, in another embodiment of the present invention, to accommodate different borehole diameters, each support rod 7.2 is a telescopic structure, allowing the length of the support rod 7.2 to be adjusted by telescoping, thereby facilitating use on boreholes of varying diameters. Furthermore, the telescopic structure facilitates storage and transport.

[0037] See also Figure 4-7In the second embodiment of the present utility model, in order to facilitate the movement of the device, an operating handle is preferably installed on the base 1, and the staff can carry the device by the operating handle. Preferably, a moving wheel 10 is installed on the base 1, and the wheel rod 11 of the moving wheel 10 is rotatably connected to the base 1. The bottom of the moving wheel 10 is located below or above the bottom of the base 1 through the rotation of the wheel rod 11 relative to the base 1. A locking member 12 is installed on the base 1 to prevent the wheel rod 11 from rotating relative to the base 1; the locking member 12 is preferably a U-shaped clamping rod, and the U-shaped clamping rod is slidably connected to the base 1. The U-shaped opening of the U-shaped clamping rod is clamped to the wheel rod 11 by sliding relative to the base 1, and the sliding direction is parallel to the rotation axis of the wheel rod 11. That is, the device can also be easily moved by the setting of the moving wheel 10, reducing the difficulty of moving and transporting, and the rotatable setting of the moving wheel 10 can be stored during detection use to prevent the base 1 from sliding and improve the stability of the base 1 during use. In this embodiment, the stability of the mobile wheel 10 is achieved by locking the locking member 12. When the mobile wheel 10 needs to be supported on the ground, it is rotated below the base 1. The U-shaped opening of the locking member 12 is used to lock the wheel rod 11, preventing the wheel rod 11 from rotating. The mobile wheel 10 can then directly maintain its current ground support state. Alternatively, the base 1 can also be stabilized by inserting the rod 12 into the ground.

[0038] Finally, it should be noted that the detection device of the present invention has better detection effect on vertical blasthole caves, but has poor detection effect on inclined blastholes.

[0039] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications made under the technical spirit suggested by the present invention should fall within the scope of the patent covered by the present invention.

Claims

1. A hole detection device for blasting construction, comprising a base, characterized in that: A winding drum, a driving motor and a control module are installed on the base; the rotating shaft of the winding drum is connected to the driving motor, and a detection line is wound on the winding drum; the detection line is integrated with a data transmission line, one end of the detection line is fixed on the winding drum, the data transmission line of this end is connected to the control module, and the other end of the detection line is a movable end; the movable end is connected to the top of the detection base, and a plurality of infrared ranging probes are installed on the detection base, and each infrared ranging probe is connected to the control module through a data transmission line. The infrared ranging probes include at least two pairs of side probes and at least one bottom probe; the side probes are installed at intervals on the sides of the detection base, and the side probes of the same pair have the same installation height and are symmetrically distributed on the detection base; the bottom probe is installed at the bottom of the detection base, and the detection direction is downward; The control module includes a controller, a timing module, a power module and a display module. The controller is connected to the infrared ranging probe, the driving motor, the timing module, the power module and the display module respectively.

2. A hole detection device for blasting construction according to claim 1, characterized in that: The detection base is detachably connected to the movable end.

3. The hole detection device for blasting construction according to claim 1, characterized in that: It also includes a positioning cylinder for the detection line to pass through. At least one pair of support rods is set on the side wall of the positioning cylinder. The two rods of each pair of support rods are symmetrically set on the positioning cylinder, and a scale line is set on the top of each rod.

4. A hole detection device for blasting construction according to claim 3, characterized in that: A fixed pulley is provided on the top of the positioning cylinder, and the fixed pulley supports the detection line so that the detection line passes through the positioning cylinder from the center line of the positioning cylinder.

5. The hole detection device for blasting construction according to claim 3, characterized in that: The inner diameter of the positioning cylinder is larger than the outer size of the detection base.

6. A hole detection device for blasting construction according to claim 3, characterized in that: Two pairs of support rods are installed on the positioning cylinder, and the four rods of the two pairs of support rods are in a cross structure.

7. A hole detection device for blasting construction according to claim 3, characterized in that: Each support rod is a telescopic structure.

8. The hole detection device for blasting construction according to claim 1, characterized in that: An operating handle is installed on the base.

9. The hole detection device for blasting construction according to claim 1, characterized in that: A moving wheel is installed on the base, and the wheel rod of the moving wheel is rotatably connected to the base. The bottom of the moving wheel is located below or above the bottom of the base through the rotation of the wheel rod relative to the base. A locking piece is installed on the base to prevent the wheel rod from rotating relative to the base.

10. A hole detection device for blasting construction according to claim 9, characterized in that: The locking piece is a U-shaped clamping rod, the U-shaped clamping rod is slidably connected to the base, and the U-shaped opening of the U-shaped clamping rod is connected to the wheel rod by sliding relative to the base.

Images