Presplitting blasting drilling inclination measuring device

Abstract

The utility model provides a presplitting blasting drilling inclination measuring device which comprises a protective cylinder, a supporting plate, a rolling wheel and a heavy hammer probe, a plurality of containing grooves are distributed in the upper end and the lower end of the outer cylinder wall of the protective cylinder in the circumferential direction, and meanwhile symmetrical guide grooves are further formed in the upper end and the lower end of the outer cylinder wall of the protective cylinder. The supporting plate is located in the containing groove, one end of the supporting plate is hinged to the groove wall of the containing groove, and the other end of the supporting plate is controlled by a telescopic mechanism to swing towards the interior or the exterior of the containing groove. Under the action of the pile casing, it can be guaranteed that the device does not swing in a drill hole, the problem that the inclination measuring operation cannot be completed due to self-swing is solved, meanwhile, under the action of the pile casing, the inclination measuring probe can be protected against the influence of hole collapse, the testing precision and the working quality are guaranteed, and the working efficiency is improved. Compared with a traditional inclination measuring device, the inclination measuring device has the advantages that the function is stronger, and the using effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological survey, and in particular relates to a pre-splitting blasting drilling inclination measuring device. Background Art

[0002] Pre-splitting blasting is one of the important ways to exploit mineral resources. Its principle is to drill a row of relatively dense blastholes along the pre-splitting surface (i.e. the designed contour line), charge a small amount of explosives in these blastholes or part of the blastholes, and use an uncoupled charge structure to detonate before the main blast, so as to produce a crack along the pre-splitting surface that is equivalent to the depth of the blasthole. This controls the destructive effect of the explosion impact energy on the retained rock mass and makes the excavation contour smoother. However, blasthole inclination measurement, drilling tool measurement, hydrological observation, and hole depth correction are important steps in scientifically standardizing pre-splitting blasting construction. If the borehole inclination is too large, the pre-splitting surface will deviate greatly from the design, which will affect the pre-splitting blasting effect. At this time, it is necessary to detect the borehole inclination during the drilling process to control the borehole inclination.

[0003] At present, traditional inclinometers are prone to swinging in the borehole, especially in mining areas with steep terrain or complex conditions, where it is often difficult to complete the inclinometer operation. In addition, when conducting borehole inclinometer measurement under conditions where the rock is relatively broken and rich in water, the borehole is prone to collapse, which results in the inclinometer probe having reduced accuracy or even falling into the open space and being unable to be removed, causing adverse effects on the project's economy and construction period.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the problem that the inclinometer in the above-mentioned prior art is not easy to complete the inclinometer operation in mining areas with steep terrain or complex conditions, and is easily affected by the hole collapse phenomenon when drilling inclinometer under conditions of relatively broken rock and rich water, and the inclinometer operation cannot be completed, and provide a pre-splitting blasting drilling inclinometer.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pre-splitting blasting drilling inclinometer, comprising: a casing, a support plate, a roller and a weight probe, wherein the upper end and the lower end of the outer tube wall of the casing are both provided with a plurality of receiving grooves distributed in the circumferential direction, and the upper end and the lower end of the outer tube wall of the casing are also provided with symmetrical guide grooves; the support plate is located in the receiving groove, one end of the support plate is hinged to the groove wall of the receiving groove, and the other end of the support plate is controlled by a telescopic mechanism to swing into or out of the groove of the receiving groove; the roller is rotatably arranged at one end of the bracket, the other end of the bracket extends into the guide groove and is connected to the corresponding groove wall through a transverse spring, and the upper groove wall and the lower groove wall of the guide groove are both connected to the bracket through a vertical spring; the weight probe is located in the barrel cavity of the casing, and the end of the weight probe facing the top of the casing is connected to a transmission cable, and the weight probe is displaced up and down in the barrel cavity of the casing by pulling the transmission cable.

[0008] In the above-mentioned pre-splitting blasting drilling and inclination measuring device, preferably, the telescopic mechanism is a cylinder, and the pneumatic rod at the front end of the cylinder is hinged to a side of the support plate facing the receiving groove;

[0009] The rear end of the cylinder is hinged to the corresponding groove wall of the accommodating groove.

[0010] Preferably, the support plate is arranged adjacent to the notch of the receiving groove;

[0011] A side of the support plate away from the cylinder is provided with sharp teeth.

[0012] Preferably, the bracket comprises: a U-shaped plate and a connecting rod, the roller is rotatably disposed in the U-shaped opening of the U-shaped plate, and the width of the U-shaped plate is consistent with the width of the slot of the guide groove.

[0013] Preferably, one end of the connecting rod is connected to the U-shaped plate, and the other end of the connecting rod is connected to one end of the transverse spring, and the top and bottom of the connecting rod are connected to the corresponding groove walls of the guide groove through the vertical spring.

[0014] Preferably, the weight probe comprises: a weight device and an inclinometer probe, wherein the inclinometer probe is arranged at the lower end of the weight device, and a buffer pad is arranged at the bottom of the barrel cavity of the casing corresponding to the inclinometer probe.

[0015] Preferably, one end of the transmission cable is connected to the upper end of the weight, and the other end of the transmission cable is electrically connected to a controller, and the controller is electrically connected to a data display.

[0016] Preferably, a plurality of distance nodes are evenly distributed on the surface of the transmission cable along its length direction, and the distance nodes are thicker than the transmission cable.

[0017] Preferably, a short tube is centrally provided at the upper end of the casing;

[0018] An anti-slip notch is provided on the top of the short tube, and the width of the anti-slip notch matches the diameter of the transmission cable.

[0019] Preferably, a hanging ring is provided on the top of the short tube, and the middle of the hanging ring is connected to one end of a pull rope.

[0020] Beneficial effect: The utility model can ensure that no swing occurs in the borehole under the action of the casing, avoiding the problem that the inclination measurement operation cannot be completed due to its own swing. At the same time, the utility model can protect the inclinometer probe from the influence of hole collapse under the action of the casing to ensure the test accuracy and work quality, and avoid adverse effects on the economy and construction period of the project. Compared with traditional inclinometers, the utility model has a stronger effect and a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0022] Figure 1 It is an overall schematic diagram of the utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 for Figure 1 Schematic diagram from top view;

[0025] Figure 4 It is a schematic diagram of the middle cross section of the utility model;

[0026] Figure 5 Schematic diagram of the inclinometer principle of an embodiment of the present invention.

[0027] In the figure: 1. casing; 2. containing groove; 3. guide groove; 4. support plate; 5. roller; 6. transverse spring; 7. vertical spring; 8. transmission cable; 9. cylinder; 10. sharp teeth; 11. U-shaped plate; 12. connecting rod; 13. heavy hammer; 14. inclinometer probe; 15. buffer pad; 16. distance node; 17. short tube; 18. anti-slip notch; 19. lifting ring; 20. pull rope. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0029] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0031] Embodiment 1: This embodiment aims to provide a pre-splitting blasting drilling inclination measuring device, the main function of which is to improve the inclination measuring accuracy of the drilling hole and ensure the smooth implementation of coal resource mining.

[0032] Reference Figure 1 , Figure 3 and Figure 4 , including: a casing 1, a support plate 4, a roller 5 and a heavy hammer probe, the upper end of the casing 1 is assisted by a pull rope 20, and the upper and lower ends of the outer wall of the casing 1 are circumferentially distributed with four vertical receiving grooves 2 for placing the support plate 4, and at the same time, two symmetrical guide grooves 3 are also provided at the upper and lower ends of the outer wall of the casing 1 for placing the roller 5, wherein the upper end of the support plate 4 is hinged to the upper groove wall of the receiving groove 2, and the lower end of the support plate 4 is controlled by a telescopic mechanism to swing toward the inside or outside of the groove of the receiving groove 2, and the purpose of swinging the lower end of the support plate 4 toward the outside of the groove of the receiving groove 2 is to swing the support plate The lower end of 4 touches the wall of the borehole to fix the position of the casing 1 in the borehole, thereby ensuring the stability of the casing 1 in the borehole and providing convenience for the staff, that is, there is no need to manually control the position of the casing 1 in the borehole. Specifically, the telescopic mechanism is actually a cylinder 9, which is placed horizontally in the receiving groove 2. The pneumatic rod at the front end of the cylinder 9 is hinged to the side of the support plate 4 facing the receiving groove 2, and the rear end of the cylinder 9 is hinged to the corresponding groove wall of the receiving groove 2. Based on this, the support plate 4 can be pushed to swing into or out of the groove of the receiving groove 2 by controlling the extension and retraction of the pneumatic rod of the cylinder 9.

[0033] Reference Figure 1 and Figure 4The roller 5 is rotatably arranged at one end of the bracket, and the other end of the bracket extends into the guide groove 3 and is connected to the corresponding groove wall through the transverse spring 6. The upper groove wall and the lower groove wall of the guide groove 3 are fixed to the bracket through the vertical spring 7. Specifically, the bracket comprises: a U-shaped plate 11 and a connecting rod 12, and the roller 5 is rotatably installed in the U-shaped mouth of the U-shaped plate 11, one end of the connecting rod 12 is fixed to the U-shaped plate 11, and the other end of the connecting rod 12 is connected to one end of the transverse spring 6, and the top and bottom of the connecting rod 12 are connected and fixed to the corresponding groove wall of the guide groove 3 through the vertical spring 7; the roller 5 can move within a certain range through the transverse spring 6 and the vertical spring 7, so as to assist the casing 1 to pass through the uneven section of the inner wall of the borehole during the sinking process.

[0034] Reference Figure 4 The weight probe is located in the barrel cavity of the casing 1, and the weight probe includes: a weight 13 and an inclinometer probe 14. The inclinometer probe 14 is arranged at the lower end of the weight 13. The weight 13 is arranged to facilitate the lowering of the inclinometer probe 14 in the borehole. A buffer pad 15 is provided at the bottom of the barrel cavity of the casing 1 corresponding to the inclinometer probe 14. The buffer pad 15 dissipates energy for the inclinometer probe 14 to prevent the inclinometer probe 14 from being damaged. The upper end of the weight 13 is connected to one end of the transmission cable 8. In the actual working scenario, the other end of the transmission cable 8 is to extend to the borehole. The controller is electrically connected to the outside and the controller is electrically connected to the data display. The controller is used to control the switch of the cylinder 9 on the one hand, and to process the drilling inclination data transmitted by the inclinometer probe 14 on the other hand, and the processing result is displayed on the data display; a plurality of distance nodes 16 are distributed on the surface of the transmission cable 8 and along its length direction. The distance nodes 16 are to be set thicker than the transmission cable 8. The distance nodes 16 are convenient for the staff to judge the length of pulling the transmission cable 8 and accurately record the position of the inclinometer probe 14 in the borehole.

[0035] In this embodiment, the support plate 4 is arranged near the notch of the accommodating groove 2, with the purpose of expanding the outward swing angle of the lower end of the support plate 4 as much as possible to adapt to boreholes of different diameters; the support plate 4 has sharp teeth 10 protruding outward on the side away from the cylinder 9, and the sharp teeth 10 can increase the friction resistance between the support plate 4 and the rock and soil wall of the borehole, further ensuring the stability of the casing 1 in the borehole; wherein, the side of the support plate 4 with the sharp teeth 10 can be set to an arc shape, thereby making it easier for the sharp teeth 10 to be inserted into the rock and soil wall of the borehole.

[0036] In this embodiment, the width of the U-shaped plate 11 is consistent with the slot width of the guide groove 3, so as to avoid lateral displacement of the roller 5 when the U-shaped plate 11 is in the guide plate. The upper and lower lengths of the U-shaped plate 11 are smaller than the slot height of the guide groove 3, so as to provide space for the roller 5 to move up and down.

[0037] In this embodiment, the casing 1 can ensure that no swing occurs in the borehole, thereby avoiding the problem of inclinometer work being unable to be completed due to its own swing. At the same time, the casing 1 can also protect the inclinometer probe 14 from being affected by hole collapse, so as to ensure the test accuracy and work quality, and avoid adverse effects on the project's economy and construction period. Compared with the traditional inclinometer, the inclinometer provided in this embodiment has a stronger function and a better use effect.

[0038] Embodiment 2 is basically the same as Embodiment 1, except that the convenience of the device during actual use is further improved. Figure 1 and Figure 2 A short tube 17 is provided in the center of the upper end of the casing 1, and an anti-slip notch 18 is provided on one side of the top pipe opening of the short tube 17. The width of the anti-slip notch 18 matches the diameter of the transmission cable 8. During actual operation, the transmission cable 8 can be placed in the anti-slip notch 18, and then the distance node 16 on the transmission cable 8 is used to prevent the transmission cable 8 from sliding down, which is convenient for the staff to count the drilling inclinometer data; a lifting ring 19 is provided on the top of the short tube 17, and the middle part of the lifting ring 19 is connected to one end of the pull rope 20, which is convenient for the staff to lower the casing 1 into the borehole.

[0039] During use of this device, refer to Figure 5 First, lower the casing 1 to the designated position in the borehole to be measured, and control the cylinder 9 through the controller to swing the lower end of the support plate 4 toward the outside of the receiving groove 2, ensuring that the sharp teeth 10 on the support plate 4 are inserted into the rock and soil wall of the borehole. At this time, the weight probe is stationary at the bottom of the casing 1. The staff slowly pulls the transmission cable 8, so that the weight probe gradually moves toward the top of the casing 1. When the weight probe slides from bottom to top in the casing 1 for measurement, the sensor in the weight probe sensitively reflects the change of the inclination angle of the barrel cavity of the casing 1 at each depth segment L, and then the horizontal displacement increment at different elevations is calculated according to the inclination angle, that is:

[0040] d i =L sinθ i

[0041] Starting from the measuring point at the bottom of casing 1, the horizontal displacement at any elevation can be obtained by accumulating step by step, that is:

[0042]

[0043] Where: d i is the horizontal displacement increment of the i-th measurement segment; θ i S is the angle between the axis of casing 1 and the plumb line in the i-th measuring section; j To measure the displacement at point i=j above the bottom fixed point (i=0) of the casing 2.

[0044] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A pre-splitting blasting drilling inclination measuring device, characterized in that: include: A casing, wherein the upper end and the lower end of the outer wall of the casing are both provided with a plurality of accommodating grooves distributed along the circumferential direction, and the upper end and the lower end of the outer wall of the casing are also provided with symmetrical guide grooves; A support plate is located in the receiving groove, one end of the support plate is hinged to the groove wall of the receiving groove, and the other end of the support plate is controlled by a telescopic mechanism to swing into or out of the groove of the receiving groove; A roller is rotatably arranged at one end of the bracket, the other end of the bracket extends into the guide groove and is connected to the corresponding groove wall through a transverse spring, and the upper groove wall and the lower groove wall of the guide groove are connected to the bracket through a vertical spring; A weight probe is located in the barrel cavity of the casing. One end of the weight probe facing the top of the casing is connected to a transmission cable. The weight probe is displaced up and down in the barrel cavity of the casing by pulling the transmission cable.

2. The pre-splitting blasting drilling inclination measuring device according to claim 1, characterized in that: The telescopic mechanism is a cylinder, and the pneumatic rod at the front end of the cylinder is hinged to the side of the support plate facing the receiving groove; The rear end of the cylinder is hinged to the corresponding groove wall of the accommodating groove.

3. The pre-splitting blasting drilling inclination measuring device according to claim 2, characterized in that: The support plate is disposed adjacent to the notch of the receiving groove; A side of the support plate away from the cylinder is provided with sharp teeth.

4. The pre-splitting blasting drilling inclination measuring device according to claim 1, characterized in that: The bracket comprises: a U-shaped plate and a connecting rod, the roller is rotatably arranged in the U-shaped opening of the U-shaped plate, and the width of the U-shaped plate is consistent with the width of the slot of the guide groove.

5. The pre-splitting blasting drilling inclination measuring device according to claim 4, characterized in that: One end of the connecting rod is connected to the U-shaped plate, and the other end of the connecting rod is connected to one end of the transverse spring. The top and bottom of the connecting rod are connected to the corresponding groove wall of the guide groove through the vertical spring.

6. The pre-splitting blasting drilling inclination measuring device according to claim 1, characterized in that: The weight probe comprises: a weight device and an inclinometer probe, wherein the inclinometer probe is arranged at the lower end of the weight device, and a buffer pad is arranged at the bottom of the casing cavity corresponding to the inclinometer probe.

7. The pre-splitting blasting drilling inclination measuring device according to claim 6, characterized in that: One end of the transmission cable is butted against the upper end of the weight, and the other end of the transmission cable is electrically connected to a controller, which is in turn electrically connected to a data display.

8. The pre-splitting blasting drilling inclination measuring device according to claim 7, characterized in that: A plurality of distance nodes are evenly distributed on the surface of the transmission cable along its length direction, and the distance nodes are thicker than the transmission cable.

9. The pre-splitting blasting drilling inclination measuring device according to claim 8, characterized in that: A short tube is centrally disposed at the upper end of the casing; An anti-slip notch is provided on the top of the short tube, and the width of the anti-slip notch matches the diameter of the transmission cable.

10. The pre-splitting blasting drilling inclination measuring device according to claim 9, characterized in that: A hanging ring is arranged on the top of the short tube, and one end of a draw rope is connected to the middle of the hanging ring.

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