Blasting drill apparatus and method of use thereof

Abstract

This invention provides a blasting drilling device and its method of use, relating to the field of blasting technology. The blasting drilling device includes: a housing; a drill bit rotatably disposed at one end of the housing; a support mechanism, comprising multiple supports arranged circumferentially around the housing, the support mechanism including a sliding part and a support rod, the sliding part being used to slide along the extending direction of the housing, one end of the support rod being rotatably connected to the sliding part, and the other end of the support rod facing the drill bit; a first nozzle disposed on the housing, with its nozzle orifice facing the drill rod shaft; and a second nozzle disposed on the housing, with its nozzle orifice facing the drill tip. When the sliding part slides to its lowest position relative to the housing, the first and second nozzles spray water. This invention can reduce drill bit wear, extend its service life, keep the drill bit clean, prevent the drill bit from being clogged, prevent affecting the drilling progress, and also lubricate the drilling surface, reducing wear and friction with the drill bit, and improving drilling accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of blasting technology, and more specifically, to a blasting drilling device and its method of use. Background Technology

[0002] Blasting is the process of dismantling objects by using explosives, which reduces the amount of manual labor. Blasting is generally used in mining, mountain construction, and other projects. Before blasting, holes must be drilled using a drilling device to facilitate the proper placement of explosives.

[0003] In shallow hole blasting and secondary blasting in horizontal tunnels, shafts, quarries, and open-pit mines in special environments, manually operated drilling rigs are often used for drilling. They have the advantages of being portable and easy to operate. However, in the actual drilling process, for some rock layers with relatively hard surfaces, the drill bit of the drilling rig needs to spend a lot of time and energy during the drilling process, which results in severe wear of the drill bit. Summary of the Invention

[0004] This invention aims to address, to some extent, the problem of how related technologies can improve the service life of drill bits.

[0005] To at least partially solve the above problems, in a first aspect, the present invention provides a blasting drilling device, comprising: a housing; a drill bit rotatably disposed at one end of the housing; a support mechanism having multiple components arranged circumferentially around the housing, the support mechanism including a sliding part and a support rod, the sliding part being used to slide along the extending direction of the housing, one end of the support rod being rotatably connected to the sliding part, and the other end of the support rod facing the drill bit; a first nozzle disposed on the housing, with the nozzle orifice facing the drill rod of the drill bit; and a second nozzle disposed on the housing, with the nozzle orifice facing the drill tip of the drill bit, wherein when the sliding part slides to its lowest position relative to the housing, the first nozzle and the second nozzle spray water.

[0006] Optionally, the sliding part includes a first slider, a first spring, a second spring, and a second slider. The outer surface of the housing is provided with a groove. The first slider and the second slider are slidably connected in the groove from top to bottom. The two ends of the first spring are respectively connected to the top wall of the groove and the upper surface of the first slider. The two ends of the second spring are respectively connected to the opposite surfaces of the first slider and the second slider.

[0007] Optionally, the support rod includes a first connecting rod, a second connecting rod, and a third connecting rod, with one end of the first connecting rod, one end of the second connecting rod, and one end of the third connecting rod rotatably connected, and the other end of the first connecting rod and the other end of the second connecting rod rotatably connected to the first slider and the second slider, respectively.

[0008] Optionally, the support mechanism further includes a foot, which is movably connected to the end of the third link away from the first link.

[0009] Optionally, it also includes a water supply mechanism, which includes a water pump, a pumping pipe and a delivery pipe. The water pump is connected to the housing, and the housing has a chamber. The water inlet of the water pump is connected to the chamber through the pumping pipe, and the water outlet of the water pump is connected to the first nozzle and the second nozzle through multiple delivery pipes respectively.

[0010] Optionally, it also includes a push switch, which is electrically connected to the water pump. The push switch is located on the lower surface of the second slider, and the contact of the push switch faces the inner bottom wall of the groove.

[0011] Optionally, it also includes a drive mechanism, which includes a motor and a transmission rod. The housing has a through hole, the motor is connected to the end of the housing away from the drill hole, the output shaft of the motor is connected to one end of the transmission rod disposed in the through hole, and the other end of the transmission rod is connected to the drill bit.

[0012] Optionally, the first slider and the second slider are provided with limiting parts on both sides, and the inner side walls of the slide groove are provided with slots, and the limiting parts are slidably connected to the slots.

[0013] Optionally, the end of the housing away from the drill bit is further provided with a hand-held mechanism, the hand-held mechanism including a handle and a baffle, the baffle being connected to the outer peripheral surface of the housing, the two ends of the handle being respectively connected to the opposite surfaces of the housing and the baffle, and the baffle being at least partially located below the handle.

[0014] Secondly, the present invention provides a method of using a blasting drilling device, comprising the following steps:

[0015] S1: Align the drill bit with the marked position on the rock surface and set up the support rod of the support mechanism on the rock surface around the marked position;

[0016] S2: Press down the housing, causing the sliding part of the support mechanism to slide upwards towards the housing, and the drill bit descends to drill a hole at the marked position;

[0017] S3: Pull up the housing, and as the drill bit rises and disengages from the borehole, the sliding part of the support mechanism slides downward toward the housing until it reaches the lowest position. The first nozzle sprays water onto the drill rod of the drill bit, and the second nozzle sprays water onto the drill tip of the drill bit.

[0018] S4: Press down the housing again, and the drill bit will descend into the hole to continue drilling. Repeat step S3 until the required drilling depth is reached.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By applying pressure to the housing, the rotating drill bit can drill at the marked position on the rock surface. One end of the support rod in the support mechanism faces the drill bit, thus supporting the housing on the rock surface, improving the stability of the housing during drilling, reducing drill bit vibration and displacement, reducing wear, and extending drill bit service life. The other end of the support rod is rotatably connected to a sliding part in the support mechanism, and the sliding part can slide along the extension direction of the housing. In this way, when the housing moves up and down, the height of the sliding part on the housing can be changed. When the housing moves upward and drives the drill bit to gradually leave the borehole, the sliding part relative to the housing... The drill bit slides downwards until it exits the borehole. At this point, the sliding part reaches its lowest position relative to the housing. The first nozzle automatically sprays water onto the drill rod to cool it, while the second nozzle automatically sprays water onto the drill tip to cool it, reducing wear and extending its lifespan. This also keeps the drill bit clean, preventing clogging and ensuring drilling progress. Furthermore, because the drill tip is close to the borehole, the water from the second nozzle can enter the borehole, lubricating the surface and reducing wear and friction, thus improving drilling accuracy and efficiency. Additionally, the drill bit can be automatically disengaged from the borehole at set intervals. The first and second nozzles automatically spray water for cooling immediately, eliminating the need for manual operation, saving time and effort, and improving drilling efficiency. After rapid cooling, the drill bit is lowered back into the borehole until the desired depth is achieved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the housing in an embodiment of the present invention;

[0023] Figure 3 This is a partial structural schematic diagram of an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the support mechanism in an embodiment of the present invention;

[0025] Figure 5 This is an exploded view of the support mechanism in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Housing; 11. Slide groove; 12. Chamber; 13. Perforation; 2. Support mechanism; 21. First slider; 22. First connecting rod; 23. First spring; 24. Second spring; 25. Second slider; 26. Second connecting rod; 27. Third connecting rod; 28. Foot; 3. Drill bit; 4. First nozzle; 5. Second nozzle; 6. Drive mechanism; 61. Motor; 62. Transmission rod; 7. Water supply mechanism; 71. Water pump; 72. Pumping pipe; 73. Water delivery pipe; 8. Handheld mechanism; 81. Handle; 82. Baffle; 9. Press switch. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0031] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0032] In the attached figures, the Z-axis represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis indicating up and the negative direction indicating down; the X-axis represents the horizontal direction and is designated as the left-right position, with the positive direction of the X-axis indicating the left side and the negative direction indicating the right side; the Y-axis represents the front-back position, with the positive direction of the Y-axis indicating the front and the negative direction indicating the back. It should be noted that the aforementioned representations of the Z-axis, Y-axis, and X-axis are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0033] like Figure 1 As shown, this embodiment of the invention provides a blasting drilling device, comprising: a housing 1; a drill bit 3 rotatably disposed at one end of the housing 1; a support mechanism 2, having multiple supports arranged circumferentially around the housing 1, the support mechanism 2 including a sliding part and a support rod, the sliding part being used to slide along the extending direction of the housing 1, one end of the support rod being rotatably connected to the sliding part, and the other end of the support rod facing the drill bit 3; a first nozzle 4 disposed on the housing 1, with the nozzle orifice of the first nozzle 4 facing the drill rod of the drill bit 3; and a second nozzle 5 disposed on the housing 1, with the nozzle orifice of the second nozzle 5 facing the drill tip of the drill bit 3. When the sliding part slides to its lowest position relative to the housing 1, the first nozzle 4 and the second nozzle 5 spray water.

[0034] In this embodiment, by applying pressure to the housing 1, the rotating drill bit 3 can drill at the marked position on the rock surface. One end of the support rod in the support mechanism 2 faces the drill bit 3, thereby supporting the housing 1 on the rock surface, improving the stability of the housing 1 during drilling, reducing the vibration displacement of the drill bit 3, reducing wear, and thus extending the service life of the drill bit 3. The other end of the support rod is rotatably connected to the sliding part in the support mechanism 2, and the sliding part can slide along the extension direction of the housing 1. In this way, when the housing 1 moves up and down, the height of the sliding part on the housing 1 can be changed. When the housing 1 moves up and drives the drill bit 3 to gradually leave the hole, the sliding part relative to the drill bit 3... As the housing 1 slides downwards, the sliding part reaches its lowest position relative to the housing 1 when the drill bit 3 is disengaged from the borehole. At this point, the first nozzle 4 automatically sprays water onto the drill rod of the drill bit 3 to cool it down. The second nozzle 5 automatically sprays water onto the drill tip of the drill bit 3 to cool it down, reducing wear and extending its service life. This also keeps the drill bit 3 clean, preventing clogging and ensuring drilling progress. Furthermore, because the drill tip is close to the borehole, the water sprayed from the second nozzle 5 can enter the borehole, lubricating the borehole surface, reducing wear and friction with the drill bit 3, and improving drilling accuracy and efficiency. Additionally, the drill bit 3 can be disengaged from the borehole at set intervals. The first nozzle 4 and second nozzle 5 automatically spray water for cooling immediately, eliminating the need for manual operation. This saves time and effort and improves drilling efficiency. After rapid cooling, the drill bit 3 is lowered back into the borehole until the required drilling depth is achieved.

[0035] like Figure 1 , Figure 4 and Figure 5 As shown, optionally, the sliding part includes a first slider 21, a first spring 23, a second spring 24, and a second slider 25. A groove 11 is provided on the outer surface of the housing 1. The first slider 21 and the second slider 25 are slidably connected from top to bottom within the groove 11. The two ends of the first spring 23 are respectively connected to the top wall of the groove 11 and the upper surface of the first slider 21. The two ends of the second spring 24 are respectively connected to the opposite surfaces of the first slider 21 and the second slider 25. The support rod includes a first connecting rod 22, a second connecting rod 26, and a third connecting rod 27. One end of the first connecting rod 22, one end of the second connecting rod 26, and one end of the third connecting rod 27 are rotatably connected. The other ends of the first connecting rod 22 and the second connecting rod 26 are rotatably connected to the first slider 21 and the second slider 25, respectively.

[0036] Specifically, the shell 1 can be, for example, a square column structure, in which case four sets of support mechanisms 2 would be provided, that is, one set on each face of the shell 1. The shell 1 can also be a triangular column structure, a cylindrical structure, etc., in which case at least three sets of support mechanisms 2 would be provided to support the shell 1. Figure 1The diagram shows a square cylindrical structure of housing 1. Slide grooves 11 are formed on the four outer surfaces of housing 1 along the Z-axis. A first slider 21 and a second slider 25 are slidably disposed in each slide groove 11, with the first slider 21 located above the second slider 25. One end of the first connecting rod 22 narrows to form a hinge. One end of the second connecting rod 26 has a first opening groove, and one end of the third connecting rod 27 has a second opening groove. The spacing between the first opening grooves is greater than that between the second opening grooves. During installation, the second opening groove is first inserted into the first opening groove, then the hinge is inserted into the second opening groove, and finally the connection is made by rotating the shaft. The other ends of the first connecting rod 22 and the second connecting rod 26 can be hinged to the first slider 21 and the second slider 25 respectively by rotating the shaft.

[0037] In this embodiment, when the blasting drilling device is lifted and carried, the foot 28 does not contact the rock surface. Due to their own weight, the four support mechanisms 2 will cause the first slider 21 and the second slider 25 to be in the lower position of the slide groove 11. At this time, the first spring 23 pulls the first slider 21, the second spring 24 and the second slider 25, so that the first spring 23 is in a stretched state. The second slider 25 does not slide to the lowest position of the slide groove 11, that is, the second slider 25 does not contact the inner bottom wall of the slide groove 11.

[0038] Before drilling, the blasting drilling device is placed on the rock surface. At this time, the foot 28 is in contact with the rock surface, the shell 1 moves slightly downward under gravity, the first slider 21 and the second slider 25 slide slightly upward, and the first spring 23 is slightly compressed. The shell 1 is supported by the support mechanism 2. The position of the shell 1 is moved repeatedly until the drill bit 3 is aligned with the marked position of the hole to be drilled on the rock surface.

[0039] During drilling, the operator applies pressure to the housing 1, which drives the drill bit 3 to descend and gradually drill into the rock mass. The first slider 21 and the second slider 25 continue to slide upward, further compressing the first spring 23. The first spring 23 and the second spring 24 act as a buffer to reduce vibration, improve the stability during drilling, and reduce vibration to the operator's hands, thus improving the comfort of drilling operations. At the same time, the first connecting rod 22 and the second connecting rod 26 form a triangular connection, which, together with the first slider 21 and the second slider 25, can effectively improve stability. The third connecting rod 27, which is rotated, can ensure the stable operation of the blasting drilling device and prevent jamming.

[0040] When it is necessary to cool down the drill bit 3, the pressure applied to the housing 1 is released. The first spring 23 releases its compressive energy instantly, causing the housing 1 to move upward, thereby causing the slide groove 11 to move upward until the second slider 25 slides to the lowest position of the slide groove 11, that is, the second slider 25 touches the inner bottom wall of the slide groove 11. At this time, the first nozzle 4 sprays water onto the drill rod of the drill bit 3, thereby cooling the drill rod of the drill bit 3. The second nozzle 5 sprays water onto the drill tip of the drill bit 3, which not only cools the drill tip, but also sprays some water into the borehole to cool the borehole surface. After the first spring 23 returns to its original state, the housing 1 also returns to the height before drilling. At this time, the second slider 25 does not contact the inner bottom wall of the slide groove 11, and the water spraying stops. Then the next round of drilling operation is carried out.

[0041] like Figure 1 and Figure 4 As shown, optionally, the support mechanism 2 also includes a foot 28, which is movably connected to the end of the third link 27 away from the first link 22.

[0042] In this embodiment, a ball groove can be formed on the upper surface of the foot 28, and a ball head pin is installed at the end of the third link 27 away from the first link 22. The ball head pin is installed in the ball groove, so that the foot 28 can move in any direction relative to the third link 27. In this way, even if the rock surface at the drilling site is not horizontal, the foot 28 can be tightly attached to the rock surface, so that the support rod can maintain a stable support effect during the drilling process, improving the stability of the housing 1 during drilling. The side of the foot 28 that contacts the rock surface can also be connected to an anti-slip pad, thereby increasing the friction between the foot 28 and the rock surface.

[0043] like Figure 2 and Figure 3 As shown, optionally, it also includes a water supply mechanism 7, which includes a water pump 71, a water suction pipe 72 and a water delivery pipe 73. The water pump 71 is connected to the housing 1, and the housing 1 is provided with a chamber 12. The water inlet of the water pump 71 is connected to the chamber 12 through the water suction pipe 72, and the water outlet of the water pump 71 is connected to the first nozzle 4 and the second nozzle 5 through multiple water delivery pipes 73 respectively.

[0044] In this embodiment, the housing 1 is provided with a water inlet to facilitate timely observation of the water level in the chamber 12. When the water level is low, water is added to the chamber 12. The water pump 71 can be fixed to the outer wall of the housing 1 with screws. The water inlet of the water pump 71 is connected to one end of the water suction pipe 72, and the other end of the water suction pipe 72 passes through the bottom of the chamber 12. The water outlet of the water pump 71 is connected to one end of a plurality of water delivery pipes 73, and the other end of the water delivery pipes 73 is connected to the first nozzle 4 and the second nozzle 5 respectively. When the contact of the pressing switch 9 contacts the bottom wall of the slide 11, the water pump 71 starts. When the contact of the pressing switch 9 separates from the bottom wall of the slide 11, the water pump 71 shuts off. It should be noted that the water pump 71 can be powered by a storage battery, which can be carried or installed on the housing 1.

[0045] like Figure 1 and Figure 3 As shown, optionally, it also includes a push switch 9, which is electrically connected to the water pump 71. The push switch 9 is located on the lower surface of the second slider 25, and the contact of the push switch 9 faces the inner bottom wall of the slide groove 11.

[0046] Specifically, the push switch 9 can be a micro switch. A micro switch is a special type of electrical switch. Its characteristic is that when the switch is in the closed state, the circuit can be connected by simply touching the switch button; when the button is released, the switch will automatically disconnect, thus cutting off the power to the circuit.

[0047] In this embodiment, please refer to Figure 1Before drilling, when the foot 28 is placed on the rock surface, the drill bit 3 is not in contact with the rock surface. At this time, the housing 1 is at its initial height. The first spring 23 pulls the first slider 21, the second spring 24, and the second slider 25, preventing the second slider 25 from being in its lowest position and ensuring that the contact of the push switch 9 does not touch the inner bottom wall of the slide 11. At this time, the circuit controlling the water pump 71 is disconnected. During drilling, pressure is applied to slowly lower the housing 1, allowing the drill bit 3 to drill. At this time, the first slider 21 and the second slider 25 slide upward together, shortening the distance between the inner top wall of the slide 11 and the first slider 21, compressing the first spring 23. The second slider 25 gradually moves away from the inner bottom wall of the slide 11, causing the contact of the push switch 9 to move further away from the inner bottom wall of the slide 11. When it is necessary to cool the drill bit 3, the pressure applied to the housing 1 is released, the first spring 23 releases its compressive energy, the housing 1 rises, causing the drill bit 3 to disengage from the hole, and the slide 11 moves upward until the push switch is activated. The contact of switch 9 contacts the inner bottom wall of the slide 11, thus connecting the circuit controlling the water pump 71. The first nozzle 4 sprays water onto the drill rod of the drill bit 3 to cool it down, while the second nozzle 5 sprays water onto the drill tip of the drill bit 3. Since the drill tip of the drill bit 3 is close to the borehole, the second nozzle 5 also sprays some water into the borehole. Due to friction and heat generation, the drill bit 3 and the borehole surface will generate high temperatures. Spraying water can effectively cool them down, preventing defects such as bending and deformation, and extending the service life of the drill bit 3. Spraying water can also lubricate the borehole surface, reducing wear and friction with the drill bit 3, and improving drilling accuracy and efficiency. The first spring 23 returns to its original state, causing the housing 1 to return to its initial height. At this time, the contact of the switch 9 does not touch the inner bottom wall of the slide 11, the circuit controlling the water pump 71 is disconnected, the water spraying action stops, and the drill bit 3 is lowered into the borehole to continue drilling. The above process is repeated several times until the required depth of the borehole is drilled.

[0048] like Figure 2 As shown, optionally, it also includes a drive mechanism 6, which includes a motor 61 and a transmission rod 62. A through hole 13 is provided in the housing 1. The motor 61 is connected to the end of the housing 1 away from the drill bit 3. The output shaft of the motor 61 is connected to one end of the transmission rod 62 provided in the through hole 13. The other end of the transmission rod 62 is connected to the drill bit 3.

[0049] In this embodiment, the motor 61 can be mounted on the end face of the housing 1 with screws. A through hole 13 is arranged along the axis of the housing 1, passing through both ends of the housing 1. The output shaft of the motor 61 extends into the through hole 13 and is connected to one end of the transmission rod 62 via a coupling. The other end of the transmission rod 62 extends out of the through hole 13 and is connected to the drill bit 3. The output shaft of the motor 61 drives the transmission rod 62 to rotate, thereby driving the drill bit 3 to rotate. Since the drill bit 3 typically rotates at a high speed, it generates a large amount of heat through friction with the rock mass during drilling. If this heat cannot be dissipated in time, it will cause the transmission rod 62 to overheat, accelerating its wear and fatigue, and reducing its service life. Because the water temperature in the chamber 12 is low, and the through hole 13 is located in the middle of the chamber 12, it can provide a certain cooling effect to the transmission rod 62 located in the through hole 13. This reduces the wear and fatigue of the transmission rod 62 and extends its service life. Furthermore, reducing the temperature of the transmission rod 62 can also improve its accuracy and stability.

[0050] like Figure 1 and Figure 3 As shown, optionally, the first slider 21 and the second slider 25 are provided with limiting parts on both sides, and the inner side walls of the slide groove 11 are provided with slots, and the limiting parts are slidably connected to the slots.

[0051] In this embodiment, the limiting part can be the two sides of the first slider 21 and the second slider 25 integrally formed, so that the limiting part protrudes from the two sides of the first slider 21 and the second slider 25. The slot is opened on both sides of the inner side wall of the slide groove 11. The limiting part is slidably disposed in the slot, thereby limiting the first slider 21 and the second slider 25, so that the first slider 21 and the second slider 25 will not slip out of the slide groove 11, and improving the stability of the first slider 21 and the second slider 25 when sliding.

[0052] like Figure 1 and Figure 3 As shown, optionally, the end of the housing 1 away from the drill bit 3 is also provided with a hand-held mechanism 8. The hand-held mechanism 8 includes a handle 81 and a baffle 82. The baffle 82 is connected to the outer peripheral surface of the housing 1. The two ends of the handle 81 are respectively connected to the opposite surfaces of the housing 1 and the baffle 82, and at least a portion of the baffle 82 is located below the handle 81.

[0053] Specifically, the baffle 82 can be an L-shaped plate. The horizontal part of the baffle 82 can be fixed to the outer surface of the housing 1 by welding or screw connection. The vertical part of the baffle 82 is set upward, that is, towards the positive direction of the Z axis in the figure. This allows one end of the handle 81 to be fixed to the outer surface of the housing 1 and the other end of the handle 81 to be connected to the baffle 82. When the baffle 82 is an L-shaped plate, the baffle 82 is located below the handle 81, which means that the horizontal part of the baffle 82 is located below the handle 81. The baffle 82 can also be a horizontal plate, in which case one end of the handle 81 is fixed to the outer surface of the housing 1.

[0054] In this embodiment, the handle 81 can be held and operated when carrying, pressing down on the housing 1, and pulling up on the housing 1. Furthermore, the baffle 82 is located below the handle 81, which prevents gravel from flying out of the drill hole and hitting the operator's hands during drilling, thus providing a certain degree of protection and improving the safety of drilling operations.

[0055] Another embodiment of the present invention provides a method of using a blasting drilling device, comprising the following steps:

[0056] S1: Align the drill bit 3 with the marked position on the rock surface, and set the support rod of the support mechanism 2 on the rock surface around the marked position;

[0057] S2: Press down the housing 1, causing the sliding part of the support mechanism 2 to slide upwards towards the housing 1, and the drill bit 3 descends to drill a hole at the marked position;

[0058] S3: Pull up the housing 1, and as the drill bit 3 rises and disengages from the borehole, the sliding part of the support mechanism 2 slides downward toward the housing 1 until it reaches the lowest position. The first nozzle 4 sprays water onto the drill rod of the drill bit 3, and the second nozzle 5 sprays water onto the drill tip of the drill bit 3.

[0059] S4: Press down the housing 1 again, and the drill bit 3 will descend into the hole to continue drilling. Repeat step S3 until the required drilling depth is reached.

[0060] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A blasting drilling device, characterized in that, include: Shell (1); The drill bit (3) is rotatably disposed at one end of the housing (1); Support mechanism (2) is provided in a plurality of circumferential rings along the housing (1). The support mechanism (2) includes a sliding part and a support rod. The sliding part is used to slide along the extension direction of the housing (1). One end of the support rod is rotatably connected to the sliding part, and the other end of the support rod faces the drill bit (3). A first nozzle (4) is disposed on the housing (1), and the nozzle orifice of the first nozzle (4) faces the drill rod of the drill bit (3); The second nozzle (5) is provided on the housing (1), and the spray hole of the second nozzle (5) faces the drill tip of the drill bit (3). When the sliding part slides to the lowest position relative to the housing (1), the first nozzle (4) and the second nozzle (5) spray water. The sliding part includes a first slider (21), a first spring (23), a second spring (24) and a second slider (25). The outer surface of the housing (1) is provided with a groove (11). The first slider (21) and the second slider (25) are slidably connected in the groove (11) from top to bottom. The two ends of the first spring (23) are respectively connected to the top wall of the groove (11) and the upper surface of the first slider (21). The two ends of the second spring (24) are respectively connected to the opposite surfaces of the first slider (21) and the second slider (25). The support rod includes a first connecting rod (22), a second connecting rod (26) and a third connecting rod (27). One end of the first connecting rod (22), one end of the second connecting rod (26) and one end of the third connecting rod (27) are rotatably connected. The other end of the first connecting rod (22) and the other end of the second connecting rod (26) are respectively rotatably connected to the first slider (21) and the second slider (25). It also includes a water supply mechanism (7), which includes a water pump (71), a water suction pipe (72) and a water delivery pipe (73). The water pump (71) is connected to the housing (1). The housing (1) has a chamber (12). The water inlet of the water pump (71) is connected to the chamber (12) through the water suction pipe (72). The water outlet of the water pump (71) is connected to the first nozzle (4) and the second nozzle (5) through multiple water delivery pipes (73).

2. The blasting drilling device as described in claim 1, characterized in that, The support mechanism (2) also includes a foot (28), which is movably connected to the end of the third link (27) away from the first link (22).

3. The blasting drilling device as described in claim 1, characterized in that, It also includes a push switch (9), which is electrically connected to the water pump (71). The push switch (9) is located on the lower surface of the second slider (25), and the contact of the push switch (9) faces the inner bottom wall of the slide groove (11).

4. The blasting drilling device as described in claim 1, characterized in that, It also includes a drive mechanism (6), which includes a motor (61) and a transmission rod (62). The housing (1) has a through hole (13). The motor (61) is connected to one end of the housing (1) away from the drill bit (3). The output shaft of the motor (61) is connected to one end of the transmission rod (62) provided in the through hole (13). The other end of the transmission rod (62) is connected to the drill bit (3).

5. The blasting drilling device as described in claim 1, characterized in that, The first slider (21) and the second slider (25) are provided with limiting parts on both sides, and the two side walls of the slide groove (11) are provided with slots, and the limiting parts are slidably connected to the slots.

6. The blasting drilling apparatus according to any one of claims 1-5, characterized in that, The housing (1) is also provided with a hand-held mechanism (8) at one end away from the drill bit (3). The hand-held mechanism (8) includes a handle (81) and a baffle (82). The baffle (82) is connected to the outer peripheral surface of the housing (1). The two ends of the handle (81) are respectively connected to the opposite surfaces of the housing (1) and the baffle (82), and the baffle (82) is at least partially located below the handle (81).

7. The method of using the blasting drilling device as described in any one of claims 1-6, characterized in that, Includes the following steps: S1: Align the drill bit (3) with the marked position on the rock surface and set the support rod of the support mechanism (2) on the rock surface around the marked position; S2: Press down the housing (1) to make the sliding part of the support mechanism (2) slide upward toward the housing (1), and the drill bit (3) descends to drill a hole at the marked position; S3: Pull up the housing (1), and as the drill bit (3) rises and leaves the drill hole, the sliding part of the support mechanism (2) slides down the housing (1) until it reaches the lowest position. The first nozzle (4) sprays water onto the drill rod of the drill bit (3), and the second nozzle (5) sprays water onto the drill tip of the drill bit (3). S4: Press down the housing (1) again, and the drill bit (3) will descend into the hole to continue drilling. Repeat step S3 until the required drilling depth is reached.

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