Soil breaker for detecting quality of construction project

Abstract

The invention relates to the technical field of soil breakers, in particular to a construction project quality detection soil breaker which comprises an impact drill bit driven by a driving device to move in the axial direction, and the impact drill bit comprises a drill bit body, a rotating component and an elastic component. The drill bit body is provided with a connecting end connected with a driving device and a pointed-cone-shaped impact end opposite to the connecting end, and a mounting groove is formed in the impact end; the rotating component is arranged in the mounting groove and is configured to rotate from a first position to a second position around a rotating axis when the impact end is inserted into a to-be-crushed stone by a preset depth, so that the part, close to the impact end, of the rotating component is screwed out towards the outside of the mounting groove; the elastic component is arranged between the rotating component and the drill bit body and can elastically keep the rotating component at the first position. The impact crushing effect of the soil breaking device can be effectively improved, the device can be suitable for crushing work of various stones with different brittleness, and then the requirement for soil leveling is met.

Description

Technical Field

[0001] The invention relates to the technical field of earth-breaking devices, in particular to an earth-breaking device for detecting the quality of construction projects. Background Art

[0002] A soil breaker is a device widely used in construction quality inspection, mainly used for breaking and leveling the ground. In the process of engineering quality inspection, the use of a soil breaker is very critical. First of all, it can help the engineering team quickly break and level the soil, creating convenient conditions for subsequent engineering quality inspection.

[0003] When crushing and leveling the ground, stones protruding from the ground are often encountered and need to be crushed. Therefore, some earth breakers (such as the patent with announcement number CN112983268B) are also equipped with impact drill bits. The driving modes of the impact drill bits include hydraulic, pneumatic and electric driving modes. However, the existing earth breakers often only use the axial reciprocating motion and rotational motion of the impact drill bit to achieve the impact crushing of stones on the ground. By crushing in this way, some stones with larger brittleness can be better crushed, while there will be some stones with smaller brittleness on the road surface that need to be crushed and leveled. When targeting stones with smaller brittleness, the impact drill bit can often only leave a circular hole on the stone. Therefore, this type of earth breakers is difficult to meet the needs of crushing and leveling stones with smaller brittleness. Based on this, we propose a earth breakers for construction engineering quality inspection to well solve the above-mentioned drawbacks. Summary of the invention

[0004] The object of the present invention is to provide a soil breaker for detecting the quality of construction projects, so as to solve the problems raised in the above-mentioned background technology.

[0005] The present invention is achieved through the following technical solutions:

[0006] A soil breaker for inspecting the quality of a construction project comprises an impact drill bit driven and moved axially by a driving device, the impact drill bit comprising:

[0007] The drill body has a connecting end connected to the driving device and a pointed conical impact end opposite to the connecting end, and a mounting groove is arranged on the impact end;

[0008] a rotating member installed in the mounting groove and configured to rotate from a first position to a second position about a rotation axis when the impact end is inserted into the stone to be crushed to a predetermined depth, so that a portion of the rotating member adjacent to the impact end is rotated outward from the mounting groove;

[0009] and an elastic member, which is disposed between the rotating member and the drill body and is capable of elastically maintaining the rotating member at the first position.

[0010] Optionally, there are two rotating components, and the two rotating components are symmetrically arranged on both sides of the impact end.

[0011] Optionally, the rotating member has a first end and a second end opposite to each other, and when the two rotating members are in the first position, the first ends thereof are combined to form a tip portion of the impact end.

[0012] Optionally, a notch is provided on the drill body at a position corresponding to the mounting groove, and the second end of the rotating member protrudes from the notch when the rotating member is in the first position.

[0013] Optionally, a water jet hole is provided on the impact end of the drill body, one end of the water jet hole is connected to a pressure water source, and the other end is arranged facing the gap between the first ends of the two rotating components.

[0014] Optionally, a cylindrical rotating connection portion coaxial with the rotation axis is provided on the drill body located in the mounting groove, and a snap-fit ​​portion rotatably matched with the rotating connection portion is provided on the rotating component.

[0015] Optionally, the driving device includes a shell, a motor 1 and a connecting rod, the shell is provided with a mounting hole, the drill body can be slidably inserted into the mounting hole, the stator of the motor 1 is relatively fixed to the shell, one end of the connecting rod is rotatably connected to a position of the output shaft of the motor 1 that deviates from the axis, and the other end of the connecting rod is rotatably connected to the connecting end of the drill body.

[0016] Optionally, a plurality of freely rotatable balls distributed along the circumference of the mounting hole are mounted on the housing, and a ball groove extending axially thereof and movably cooperating with the balls is recessed on the side wall of the drill body.

[0017] Optionally, it also includes a frame, which includes a base and a connecting frame, the bottom of the base is equipped with casters, and the connecting frame is equipped with a driving mechanism for driving the shell to move vertically, the driving mechanism includes a vertically arranged screw rod and a motor 2 fixedly installed on the connecting frame and used to drive the screw rod to rotate, and the shell is fixedly provided with a slider which is threadedly connected to the screw rod and slidably cooperates with the connecting frame.

[0018] Optionally, an operation port is provided at the front end of the base, and the impact drill bit is located directly above the operation port.

[0019] Compared with the prior art, the present invention provides a soil breaker for detecting the quality of construction projects, which has the following beneficial effects:

[0020] 1. The present invention provides a rotating member that can be driven to rotate by the reaction force of the stone on the impact end of the drill bit body. When the impact end of the impact drill bit impacts a stone with less brittleness and is inserted into the stone to a predetermined depth, the part of the rotating member adjacent to the impact end is rotated outward from the installation groove and squeezes the inner wall of the punching hole formed by the impact of the impact end, thereby achieving the purpose of destroying the stone structure. The impact drill bit with this structure can not only effectively improve the impact crushing effect of the earth breaker, but also be applicable to the crushing of various stones with different brittleness, thereby meeting the demand for leveling the soil;

[0021] 2. When the two rotating members of the present invention are in the first position, their first ends are combined to form the tip portion of the impact end, so that the length of the first ends of the two rotating members can be maximized, so that when the rotating members rotate from the first position to the second position around the rotation axis, the portion that rotates out of the installation groove can be as much as possible, thereby further ensuring the squeezing and crushing effect on the stone;

[0022] 3. The present invention provides a water jet hole on the impact end of the drill body, and sets one end of the water jet hole to face the gap between the first ends of the two rotating components. In the process of crushing stones, when the first ends of the two rotating components are separated, on the one hand, high-pressure water can be used to impact the broken stones and other debris in the gap between the first ends of the two rotating components, so as to prevent these debris from affecting the subsequent merging of the first ends of the two rotating components. On the other hand, since the impact drill bit will generate high temperature during the process of impacting with stones, the water flowing through the water jet hole and sprayed from the water jet hole can cool the impact drill bit and extend the service life of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure when the number of rotating components of the impact drill bit is two;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the split structure;

[0026] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0027] Figure 5 For the present invention Figure 2 A schematic cross-sectional structure diagram of ;

[0028] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at point A;

[0029] Figure 7It is a schematic diagram of the connection structure between the driving device and the drill body of the present invention;

[0030] Figure 8 This is a schematic structural diagram of the impact drill bit of the present invention when the number of rotating components is one.

[0031] In the figure: 1. drill body; 1-a. connection end; 1-b. impact end; 1-c. mounting groove; 1-d. notch; 1-e. water jet hole; 1-f. rotating connection part; 2. rotating member; 2-a. first end; 2-b. second end; 2-c. buckle part; 3. elastic member; 4. housing; 5. motor 1; 6. connecting rod; 7. ball; 8. ball groove; 9. base; 10. connecting frame; 11. caster; 12. screw rod; 13. motor 2; 14. slider; 15. operation port; 16. power supply; 17. control switch; 18. water pump; 19. pipeline; 20. water tank; 21. mounting hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example: See Figure 1-Figure 8A soil breaker for inspecting the quality of construction projects comprises an impact drill bit driven to move axially by a driving device, the impact drill bit comprising a drill bit body 1, a rotating member 2 and an elastic member 3, wherein the drill bit body 1 has a connecting end 1-a connected to the driving device and an impact end 1-b opposite to the connecting end 1-a and having a pointed cone shape, and a mounting groove 1-c is arranged on the impact end 1-b; the rotating member 2 is arranged in the mounting groove 1-c and is constructed to be able to rotate from a first position to a second position around a rotation axis when the impact end 1-b is inserted into a predetermined depth of a stone to be broken, so that the part of the rotating member 2 adjacent to the impact end 1-b is rotated out toward the outside of the mounting groove 1-c; the elastic member 3 is arranged between the rotating member 2 and the drill bit body 1 and can elastically keep the rotating member 2 in the first position. When the impact end 1-b of the impact drill bit impacts a stone with less brittleness and is inserted into the stone to a predetermined depth, a punch hole will be formed on the stone. At this time, the stone will generate a reaction force on the rotating component 2 and push it to rotate, so that the part of the rotating component 2 adjacent to the impact end 1-b is screwed out toward the outside of the mounting groove 1-c (that is, extended radially toward the drill bit body 1) and squeezes the inner wall of the punch hole, thereby achieving the purpose of destroying the stone structure. The impact drill bit using this structure can not only effectively improve the impact crushing effect of the soil breaker, but also can be used for the crushing of stones of different brittleness, thereby meeting the needs of leveling the soil.

[0034] In this exemplary embodiment, there are two rotating members 2, which are symmetrically arranged on both sides of the impact end 1-b. When the impact end 1-b of the drill body 1 is inserted into the stone to a predetermined depth, the two rotating members 2 can rotate simultaneously in opposite directions to obtain a better squeezing and crushing effect on the stone. Figure 8 As shown, in some embodiments, there may be only one rotating member 2, which can achieve the purpose of squeezing the inner wall of the punch hole through cooperation with the tip of the impact end 1-b, thereby achieving a better effect of crushing stones with lower brittleness.

[0035] In this exemplary embodiment, the rotating member 2 has a first end 2-a and a second end 2-b opposite to each other, and when the two rotating members 2 are in the first position, the first ends 2-a thereof are combined to form the tip portion of the impact end 1-b. This arrangement maximizes the length of the first ends 2-a of the two rotating members 2, so that when the first ends 2-a rotate from the first position to the second position around the rotation axis, the portion that rotates out of the mounting groove 1-c can be as large as possible, thereby further ensuring the squeezing and crushing effect on the stone.

[0036] In this exemplary embodiment, a notch 1-d is provided on the drill body 1 at a position corresponding to the mounting groove 1-c, and the second end 2-b of the rotating member 2 protrudes from the notch 1-d when the rotating member 2 is in the first position. In other words, when the stone is pressed against the second end 2-b of the rotating member 2, the rotating member 2 can rotate around the rotation axis. Of course, in some embodiments, the notch 1-d may not be provided, but a protruding structure (not shown) may be provided on the side of the second end 2-b of the rotating member 2 facing away from the mounting groove 1-c, so that the stone can push the rotating member 2 to rotate through the protruding structure.

[0037] In this exemplary embodiment, a water jet hole 1-e is provided on the impact end 1-b of the drill body 1, one end of the water jet hole 1-e is connected to a pressure water source, and the other end is arranged facing the gap between the first ends 2-a of the two rotating members 2. Specifically, Figure 1 As shown, the pressure water source may include a water tank 20 and a pipeline 19 equipped with a water pump 18, and the water jet hole 1-e is connected to the water tank 20 through the pipeline 19. Of course, as long as water with a certain pressure can be provided to the water jet hole 1-e, there is no particular restriction on the specific form of the pressure water source. By aligning the water jet hole 1-e with the gap between the first ends 2-a of the two rotating components 2, when the first ends 2-a of the two rotating components 2 are separated during the stone crushing process, on the one hand, high-pressure water can be used to impact the broken stones and other debris in the gap between the first ends 2-a of the two rotating components 2, so as to prevent these debris from affecting the subsequent merging of the first ends 2-a of the two rotating components 2. On the other hand, since the impact drill bit will generate high temperature during the use of impacting with stones, at this time, the water flowing through the water jet hole 1-e and sprayed from the water jet hole 1-e can just cool the impact drill bit and extend the service life of the drill bit.

[0038] In this exemplary embodiment, a cylindrical rotating connection portion 1-f coaxial with the rotation axis is provided on the drill body 1 located in the installation groove 1-c, and a buckle portion 2-c rotatably matched with the rotating connection portion 1-f is provided on the rotating member 2. Of course, in other embodiments, the rotating member 2 can also be installed in the installation groove 1-c of the drill body 1 by means of a hinge or hinge.

[0039] In this exemplary embodiment, the driving device includes a housing 4, a motor 5 and a connecting rod 6. The housing 4 is provided with a mounting hole 21. The drill body 1 can be slidably inserted into the mounting hole 21. The stator of the motor 5 is relatively fixed to the housing 4. One end of the connecting rod 6 is rotatably connected to the position of the output shaft of the motor 5 that deviates from the axis, and the other end of the connecting rod 6 is rotatably connected to the connecting end 1-a of the drill body 1. In specific implementation, the motor 5 rotates and drives the drill body 1 to reciprocate along the axial direction through the connecting rod 6, so that the drill body 1 can form a reciprocating impact on the stone. The above-mentioned driving device is an electric driving device, and in some embodiments, the drill body 1 can also be driven to move along the axial direction by manpower, or driven by hydraulic pressure, pneumatic pressure, etc.

[0040] When the drill body 1 moves axially in the mounting hole 21, if the drill body 1 is in direct contact with the inner wall of the mounting hole 21, friction will cause a great obstacle to the movement of the drill body 1. In order to solve this problem, in this exemplary embodiment, a plurality of freely rotatable balls 7 distributed along the circumference of the mounting hole 21 are installed on the housing 4, and a bead groove 8 extending axially thereof and movably cooperating with the balls 7 is concavely provided on the side wall of the drill body 1. After such arrangement, the drill body 1 can slide stably and smoothly along the axial direction in the mounting hole 21 through the cooperation between the balls 7 and the bead groove 8.

[0041] In order to facilitate the movement and use of the earth breaker, in this exemplary embodiment, the earth breaker also includes a frame, and the frame includes a base 9 and a connecting frame 10. A caster 11 is installed at the bottom of the base 9. A driving mechanism for driving the housing 4 to move vertically is installed on the connecting frame 10. The driving mechanism includes a vertically arranged screw rod 12 and a motor 13 fixedly installed on the connecting frame 10 and used to drive the screw rod 12 to rotate. A slider 14 is fixedly provided on the housing 4, which is threadedly connected to the screw rod 12 and slidably cooperates with the connecting frame 10. The provision of the caster 11 can facilitate the movement of the earth breaker to a designated position for land leveling work, and the provision of the driving mechanism can control the lifting and lowering of the impact drill bit to facilitate the use of the earth breaker. In specific implementation, the motor 13 drives the screw rod 12 to rotate, and the screw rod 12 drives the slider 14, the driving device and the impact drill bit to move vertically. In some embodiments, such as Figure 1 As shown, in order to further facilitate movement, the earth breaker also includes a power supply 16 and a control switch 17. The power supply 16 is used to supply power to the motor 1 5, the motor 2 13 and the water pump 18, and the control switch 17 is used to control the start and stop of the motor 1 5, the motor 2 13 and the water pump 18.

[0042] In this exemplary embodiment, an operation port 15 is provided at the front end of the base 9, and the impact drill bit is located directly above the operation port 15. This arrangement allows the center of gravity of the connecting frame 10, the driving device and the impact drill bit to fall in the middle of the base 9 after assembly, thereby ensuring the stability of the earth breaker during operation.

[0043] In summary, in the specific use of this embodiment, the earth breaker is first moved to the specified position, and then the motor 15 is controlled by the control switch 17 to start. After the motor 15 is started, the motor 15 rotates and drives the drill body 1 to make axial reciprocating motion in the mounting hole 21 of the housing 4 through the connecting rod 6. Then, the motor 2 13 is controlled by the control switch 17 to start. After the motor 2 13 is started, the motor 2 13 drives the screw rod 12 to rotate, and the screw rod 12 drives the slider 14, the driving device and the impact drill bit to move vertically downward, so that the impact end 1-b of the impact drill bit impacts and breaks the protruding stones on the ground. When the impact end 1-b of the impact drill bit impacts the less brittle stone and inserts into the stone to a predetermined depth, a punch hole will be formed on the stone. At this time, the stone will hit the second end of the rotating member 2 2-b generates a reaction force and pushes the rotating component 2 to rotate, so that the first end 2-a of the rotating component 2 is rotated out toward the outside of the installation groove 1-c and squeezes the inner wall of the punching hole, thereby achieving the purpose of destroying the stone structure. In addition, in the process of crushing stones, the water in the water tank 20 can be pumped into the water jet hole 1-e by the water pump 18, and the high-pressure water flow sprayed from the water jet hole 1-e is used to impact the gravel and other debris in the gap between the first ends 2-a of the two rotating components 2, so as to prevent these debris from affecting the subsequent merging of the first ends 2-a of the two rotating components 2. At the same time, since the impact drill bit will generate high temperature during the process of colliding with stones, the water flowing through the water jet hole 1-e and sprayed from the water jet hole 1-e can just cool the impact drill bit, thereby extending the service life of the drill bit.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil breaker for inspecting the quality of construction projects, comprising an impact drill bit driven and moved axially by a driving device, characterized in that: The impact drill bit comprises: A drill body (1) comprises a connection end (1-a) connected to the driving device and a pointed cone-shaped impact end (1-b) opposite to the connection end (1-a), wherein a mounting groove (1-c) is provided on the impact end (1-b); A rotating member (2) is installed in the installation groove (1-c) and is configured to rotate from a first position to a second position around a rotation axis when the impact end (1-b) is inserted into the stone to be crushed to a predetermined depth, so that a portion of the rotating member (2) adjacent to the impact end (1-b) is rotated outward from the installation groove (1-c); and an elastic member (3) which is arranged between the rotating member (2) and the drill body (1) and is capable of elastically maintaining the rotating member (2) at the first position.

2. A groundbreaker for testing the quality of construction projects according to claim 1, characterized in that: There are two rotating components (2), and the two rotating components (2) are symmetrically arranged on both sides of the impact end (1-b).

3. A groundbreaker for testing the quality of construction projects according to claim 2, characterized in that: The rotating member (2) has a first end (2-a) and a second end (2-b) opposite to each other. When the two rotating members (2) are in the first position, the first ends (2-a) thereof are combined to form the tip portion of the impact end (1-b).

4. A groundbreaker for testing the quality of construction projects according to claim 3, characterized in that: A notch (1-d) is provided on the drill body (1) at a position corresponding to the mounting groove (1-c), and when the rotating member (2) is in the first position, the second end (2-b) thereof protrudes from the notch (1-d).

5. The earth-breaking device for detecting the quality of construction projects according to claim 3, characterized in that: A water jet hole (1-e) is provided on the impact end (1-b) of the drill body (1), one end of the water jet hole (1-e) is connected to a pressure water source, and the other end is arranged facing the gap between the first ends (2-a) of the two rotating components (2).

6. A groundbreaker for inspecting the quality of construction projects according to any one of claims 1 to 5, characterized in that: A cylindrical rotating connection portion (1-f) coaxial with the rotating axis is provided on the drill body (1) located in the installation groove (1-c), and a snap-fit ​​portion (2-c) rotatably matched with the rotating connection portion (1-f) is provided on the rotating component (2).

7. A groundbreaker for inspecting the quality of construction projects according to any one of claims 1 to 5, characterized in that: The driving device comprises a housing (4), a motor (5) and a connecting rod (6); the housing (4) is provided with a mounting hole (21); the drill body (1) is slidably inserted into the mounting hole (21); the stator of the motor (5) is relatively fixed to the housing (4); one end of the connecting rod (6) is rotatably connected to a position of an output shaft of the motor (5) that deviates from the axis; and the other end of the connecting rod (6) is rotatably connected to a connecting end (1-a) of the drill body (1).

8. The earth-breaking device for detecting the quality of construction projects according to claim 7, characterized in that: The housing (4) is provided with a plurality of freely rotatable balls (7) distributed along the circumference of the mounting hole (21), and a ball groove (8) extending in the axial direction thereof and movably cooperating with the balls (7) is provided in the side wall of the drill body (1).

9. The earth-breaking device for detecting the quality of construction projects according to claim 7, characterized in that: The machine also comprises a frame, the frame comprising a base (9) and a connecting frame (10), a caster (11) being installed at the bottom of the base (9), a driving mechanism for driving the housing (4) to move vertically being installed on the connecting frame (10), the driving mechanism comprising a vertically arranged screw rod (12) and a second motor (13) fixedly installed on the connecting frame (10) and used for driving the screw rod (12) to rotate, and a slider (14) being fixedly arranged on the housing (4) and being threadedly connected to the screw rod (12) and slidably matched with the connecting frame (10).

10. A groundbreaker for testing the quality of construction projects according to claim 9, characterized in that: An operating port (15) is provided at the front end of the base (9), and the impact drill bit is located directly above the operating port (15).

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