Large-size percussion drill bit capable of rapidly punching

Abstract

The utility model discloses a quick punching large-size percussion drill bit which comprises a cross-shaped percussion drill bit, a detachable auxiliary percussion drilling mechanism is installed on the outer side of the cross-shaped percussion drill bit, and the detachable auxiliary percussion drilling mechanism comprises four installation blocks which are annularly arranged. The four mounting blocks are fixedly connected to the outer side of the cross-shaped percussion bit, mounting grooves with the bottoms and the two sides open are formed in the sides, away from the cross-shaped percussion bit, of the mounting blocks, the same annular steel plate is movably arranged in the four mounting grooves in a sleeved mode, and four clamping grooves are annularly formed in the inner side wall of the annular steel plate. And the same clamping limiting assembly is movably clamped in the clamping groove and at the bottom of the annular steel plate. Through the arrangement of a series of structures, large-size holes can be rapidly punched, an annular steel plate can be rapidly clamped and limited in a simple rotating mode, welding and cutting operation by personnel is not needed, the operation efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of impact drill bits, in particular to a large-size impact drill bit for rapid hole drilling. Background Art

[0002] During civil construction, a hole is first drilled on the rock by an impact drill, and then pile driving is carried out. In the prior art, a conventional cross drill bit is used for impact drilling. The cross drill bit has a large drilling resistance in clay and sand, and the drilling efficiency is low. In addition, the cross drill construction is prone to leave a small plum blossom wall, which is not convenient for the installation of a steel cage. To solve the above problems, technical personnel in this field use a steel plate outer ring to be sleeved on the outside of the cross drill bit, and the various gaps can be connected into a whole through the steel plate outer ring. The cross drill bit with a steel plate outer ring can speed up the construction progress of the ultra-thick anti-seepage wall, so that it can better play the role of cutting and drilling, achieve the purpose of fast drilling, and avoid the appearance of a small plum blossom wall; the existing cross drill bit with a steel plate outer ring, the steel plate outer ring is fixed to the outside of the cross drill bit by welding, and the steel plate outer ring needs to be cut into multiple parts for welding, the fixing efficiency is low, and the operation is relatively cumbersome, which cannot meet the use requirements. Based on the above situation, we propose a large-size impact drill bit for fast drilling. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a large-size impact drill bit for rapid drilling.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A large-size impact drill bit for fast drilling, comprising a cross impact drill bit, a detachable auxiliary impact drilling mechanism being installed on the outer side of the cross impact drill bit, the detachable auxiliary impact drilling mechanism comprising four mounting blocks arranged in an annular shape, the four mounting blocks being fixedly connected to the outer side of the cross impact drill bit, a mounting groove having openings at the bottom and both sides being provided on a side of the mounting block away from the cross impact drill bit, a same annular steel plate being movably sleeved in the four mounting grooves, four card slots being movably provided on the inner side wall of the annular steel plate, the same card slot being movably provided in the card slot and at the bottom of the annular steel plate A limit assembly is installed, and the card-mounted limit assembly is used to limit the annular steel plate. A first groove with an opening at the bottom is opened on the inner wall of the installation groove on the side close to the cross impact drill bit, and a second groove is opened on the top inner wall of the first groove. The card-mounted limit assembly is installed in the first groove and the corresponding second groove. A threaded drive assembly is rotatably installed on the inner wall of the second groove on the side close to the cross impact drill bit. The card-mounted limit assembly is threadedly sleeved on the corresponding threaded drive assembly. The threaded drive assembly is used to drive the card-mounted limit assembly to move, and the threaded drive assembly extends to the outside of the corresponding installation block on the side away from the cross impact drill bit.

[0006] Preferably, the card-mounted limit assembly includes a card block movably mounted in the card slot, the card block and the card slot cooperate to limit the front and rear, left and right, and up and down positions of the annular steel plate, the card block extends into the second slot on one side close to the cross impact drill bit and is fixedly connected to a vertical rod, four positioning rods are fixedly connected between the inner walls on both sides of the second slot, the vertical rod is slidably sleeved on the corresponding four positioning rods, the positioning rod has a lateral guiding effect on the corresponding vertical rod, the bottom end of the vertical rod extends into the corresponding first slot, the bottom of the annular steel plate is in an annular movably contacted with four limit blocks, the four limit blocks limit the bottom of the annular steel plate, the limit block is located in the corresponding installation slot, the limit block extends into the corresponding first slot on one side close to the cross impact drill bit and is fixedly connected to the vertical rod, an elastic shielding cloth is fixedly connected between the side of the vertical rod close to the cross impact drill bit and the inner wall of one side of the corresponding first slot, the elastic shielding cloth is provided for shielding the bottom of the corresponding first slot to reduce the entry of soil during the drilling process.

[0007] Preferably, the threaded drive assembly includes a screw rod, which is rotatably mounted on the inner wall of the corresponding second groove close to the cross impact drill bit. A groove with openings on both sides is provided on the side of the mounting block away from the cross impact drill bit. One end of the screw rod away from the cross impact drill bit extends into the corresponding groove and is fixedly connected with a knob. The vertical rod is threadedly sleeved on the corresponding screw rod. The vertical rod is threadedly connected to the corresponding screw rod in such a way that the corresponding vertical rod can be driven to move laterally while the screw rotates.

[0008] Preferably, a through hole connected to the corresponding second groove is opened on the inner wall of the groove on one side close to the cross impact drill bit, and two first bearings are fixedly sleeved in the through hole. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw, and the first bearing serves to provide a rotatable installation for the corresponding screw.

[0009] Preferably, a threaded hole is provided on one side of the vertical rod, and the threaded hole is threadably connected to the corresponding screw rod.

[0010] Preferably, the top of the annular steel plate is in movable contact with the top inner walls of the four mounting grooves, and the side of the clamping block away from the corresponding vertical rod is in movable contact with the inner wall of the side of the clamping groove away from its opening.

[0011] Preferably, two sides of the elastic shielding cloth are in active contact with two side inner walls of the corresponding first groove respectively.

[0012] Compared with the existing technology, the beneficial effects of the utility model are:

[0013] 1. The setting of the annular steel plate can speed up the construction progress of the ultra-thick anti-seepage wall, so as to quickly complete the drilling operation. At the same time, the outer diameter of the cross impact drill bit is increased, so that large-sized holes can be drilled;

[0014] 2. Through the coordination of the clamping limit assembly, the clamping slot, the first slot, the second slot and the threaded drive assembly, the annular steel plate can be quickly clamped and limited by a simple rotation, without the need for personnel to perform separate welding and cutting operations, thereby reducing labor intensity and improving installation efficiency;

[0015] The utility model can quickly punch large-sized holes through the arrangement of a series of structures, and can quickly clamp and limit the annular steel plate by simple rotation, without the need for personnel to perform welding and cutting operations, thereby improving operating efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a large-size impact drill bit for fast drilling proposed by the utility model;

[0017] Figure 2 for Figure 1 A partial cross-sectional structural schematic diagram;

[0018] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0019] Figure 4 A three-dimensional structural schematic diagram of a detachable auxiliary impact drilling mechanism for a large-size impact drill bit for fast drilling proposed by the utility model;

[0020] Figure 5 for Figure 4 Schematic diagram of the top view of the three-dimensional structure.

[0021] In the figure: 100, cross impact drill bit; 1, mounting block; 2, limit block; 3, mounting slot; 4, first slot; 5, elastic shielding cloth; 6, second slot; 7, vertical rod; 8, positioning rod; 9, clamping block; 10, clamping slot; 11, screw; 12, groove; 13, knob; 14, annular steel plate; 15, through hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5A large-size impact drill bit for fast drilling includes a cross impact drill bit 100. A detachable auxiliary impact drilling mechanism is installed on the outer side of the cross impact drill bit 100. The detachable auxiliary impact drilling mechanism includes four mounting blocks 1 arranged in a ring shape. The four mounting blocks 1 are fixedly connected to the outer side of the cross impact drill bit 100. The mounting block 1 is provided with a mounting groove 3 with openings at the bottom and both sides on one side away from the cross impact drill bit 100. The four mounting grooves 3 are movably sleeved with the same annular steel plate 14, wherein the top of the annular steel plate 14 is movably in contact with the top inner walls of the four mounting grooves 3, and the inner side wall of the annular steel plate 14 is provided with four annular holes. A card slot 10 is provided, and the same card-mounted limiting component is movably mounted in the card slot 10 and at the bottom of the annular steel plate 14. A first slot 4 with an opening at the bottom is provided on the inner wall of the side of the installation slot 3 close to the cross impact drill bit 100, and a second slot 6 is provided on the top inner wall of the first slot 4. The card-mounted limiting component is installed in the first slot 4 and the corresponding second slot 6, wherein the card-mounted limiting component includes a card block 9 movably mounted in the card slot 10, and the card block 9 cooperates with the card slot 10 to limit the front and rear, left and right, and up and down positions of the annular steel plate 14. The side of the card block 9 away from the corresponding vertical rod 7 is movably contacted with the inner wall of the side of the card slot 10 away from its opening, and the card block 9 is close to the card slot 10. One side of the near-cross impact drill bit 100 extends into the second groove 6 and is fixedly connected with a vertical rod 7. A first through hole connected to the corresponding mounting groove 3 is provided on the inner wall of the second groove 6 away from the cross impact drill bit 100. The inner wall of the first through hole is in active contact with the outer side of the corresponding block 9. Four positioning rods 8 are fixedly connected between the inner walls on both sides of the second groove 6. The vertical rod 7 is slidably sleeved on the corresponding four positioning rods 8. Four positioning holes are provided on the right side of the vertical rod 7. The inner wall of the positioning hole is in active contact with the outer side of the corresponding positioning rod 8. The positioning rod 8 plays a lateral guiding effect on the corresponding vertical rod 7. The bottom end of the vertical rod 7 extends into the corresponding first groove 4. The annular The bottom of the steel plate 14 is in an annular shape and is in movable contact with four limit blocks 2. The four limit blocks 2 limit the bottom of the annular steel plate 14. The limit blocks 2 are located in the corresponding installation grooves 3. The side of the limit blocks 2 close to the cross impact drill bit 100 extends into the corresponding first groove 4 and is fixedly connected to the vertical rod 7. An elastic shielding cloth 5 is fixedly connected between the side of the vertical rod 7 close to the cross impact drill bit 100 and the inner wall of one side of the corresponding first groove 4, wherein the two sides of the elastic shielding cloth 5 are respectively in movable contact with the inner walls of both sides of the corresponding first groove 4. The setting of the elastic shielding cloth 5 is used to shield the bottom of the corresponding first groove 4 to reduce the situation of soil entering during the drilling process;

[0024] A threaded drive assembly is rotatably mounted on the inner wall of the second groove 6 on one side close to the cross impact drill bit 100, and the threaded drive assembly extends to the outside of the corresponding mounting block 1 away from the cross impact drill bit 100. The threaded drive assembly includes a screw 11, which is rotatably mounted on the inner wall of the corresponding second groove 6 on one side close to the cross impact drill bit 100, wherein a rotation groove is provided on the inner wall of the second groove 6 on one side close to the cross impact drill bit 100, and a second bearing is fixedly sleeved in the rotation groove, and the inner side of the inner ring of the second bearing is fixedly connected to the outer side of the corresponding screw 11, and a groove 12 with openings on both sides is provided on the side of the mounting block 1 away from the cross impact drill bit 100, and one end of the screw 11 away from the cross impact drill bit 100 extends into the corresponding groove 12 and is fixedly connected with a knob 13, wherein the groove 12 is close to one side of the cross impact drill bit 100. A through hole 15 connected to the corresponding second groove 6 is provided on the inner wall of the side, and two first bearings are fixedly sleeved in the through hole 15. The inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw 11, and the first bearing and the second bearing serve to provide the corresponding screw 11 for rotatable installation. The vertical rod 7 is threadedly sleeved on the corresponding screw 11, wherein a threaded hole is provided on one side of the vertical rod 7, and the threaded hole is threadedly connected to the corresponding screw 11. The vertical rod 7 is threadedly connected to the corresponding screw 11 through the threaded hole, and the corresponding vertical rod 7 can be driven to move horizontally while the screw 11 rotates; the utility model can quickly punch large-sized holes through a series of structural settings, and can quickly clamp and limit the annular steel plate 14 through a simple rotation method, without the need for personnel to perform welding and cutting operations, thereby improving operating efficiency and reducing labor intensity.

[0025] Working principle: when in use, before the annular steel plate 14 is installed, when installing, first turn the four knobs 13 in the forward direction respectively, the knobs 13 drive the corresponding screws 11 to rotate, under the action of the threaded holes on the vertical rod 7, the screws 11 rotate and drive the corresponding vertical rods 7 to slide on the four positioning rods 8 in the direction close to the cross impact drill bit 100, the vertical rod 7 drives the corresponding block 9 and the limit block 2 to move, the block 9 and the limit block 2 are respectively retracted into the corresponding second groove 6 and the first groove 4, at this time, the annular steel plate 14 can be sleeved in the four installation grooves 3, after sleeved, the four knobs 13 are rotated in the reverse direction, the same as the forward rotation The movement process of the button 13 is opposite, so that the block 9 and the limit block 2 both move in the direction away from the cross impact drill bit 100, the block 9 is inserted into the corresponding slot 10, and the limit block 2 moves to the bottom of the annular steel plate 14. When the four knobs 13 are rotated and adjusted, the four limit blocks 2 limit the bottom of the annular steel plate 14, and the four block blocks 9 limit the up, down, front, back, left and right positions of the annular steel plate 14, thereby achieving effective fixation of the annular steel plate 14. By means of the card-mounted fixation and the limit fixation, the annular steel plate 14 can be quickly installed without the need for personnel to perform welding operations, thereby improving operating efficiency and reducing labor intensity.

[0026] The cross impact drill bit 100 equipped with the annular steel plate 14 can speed up the construction progress of the ultra-thick anti-seepage wall, thereby quickly completing the drilling operation, and the annular steel plate 14 is sleeved on the outside of the cross impact drill bit 100, increasing the outer diameter of the cross impact drill bit 100, so that large-sized holes can be drilled. In addition, the setting of the elastic shielding cloth 5 can shield the first groove 4 during the drilling process, which can effectively reduce the situation where soil impurities enter the first groove 4.

[0027] When the annular steel plate 14 needs to be removed, the four knobs 13 can be rotated forward again, so that the blocking block 9 and the limit block 2 are retracted into the corresponding second groove 6 and the first groove 4 respectively, thereby releasing the restriction on the annular steel plate 14. The annular steel plate 14 can then be moved downward to be removed, making it convenient for the subsequent disassembly, assembly and replacement of the annular steel plate 14.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-size impact drill bit for fast drilling, comprising a cross impact drill bit (100), characterized in that: A detachable auxiliary impact drilling mechanism is installed on the outer side of the cross impact drill bit (100), and the detachable auxiliary impact drilling mechanism comprises four mounting blocks (1) arranged in an annular shape, and the four mounting blocks (1) are all fixedly connected to the outer side of the cross impact drill bit (100), and a mounting groove (3) with openings at the bottom and both sides is provided on the side of the mounting block (1) away from the cross impact drill bit (100), and the same annular steel plate (14) is movably sleeved in the four mounting grooves (3), and four clamping grooves (10) are provided on the inner side wall of the annular steel plate (14) in an annular shape, and the inside of the clamping groove (10) and the annular steel plate (14) are connected to each other. ) is movably mounted at the bottom of the mounting groove (3), a first groove (4) with an opening at the bottom is provided on the inner wall of the side of the mounting groove (3) close to the cross impact drill bit (100), a second groove (6) is provided on the inner wall at the top of the first groove (4), the mounting groove (4) is mounted in the first groove (4) and the corresponding second groove (6), a threaded drive assembly is rotatably mounted on the inner wall of the side of the second groove (6) close to the cross impact drill bit (100), the mounting groove (3) is threadedly sleeved on the corresponding threaded drive assembly, and the threaded drive assembly extends from the side of the cross impact drill bit (100) to the outside of the corresponding mounting block (1).

2. A large-size impact drill bit for rapid drilling according to claim 1, characterized in that: The clamping limit assembly comprises a clamping block (9) movably clamped in the clamping slot (10); the clamping block (9) extends into the second slot (6) on a side close to the cross impact drill bit (100) and is fixedly connected to a vertical rod (7); four positioning rods (8) are fixedly connected between the inner walls on both sides of the second slot (6); the vertical rod (7) is slidably sleeved on the corresponding four positioning rods (8); the bottom end of the vertical rod (7) extends into the corresponding first slot (4); the bottom of the annular steel plate (14) is in an annular shape and movably contacts four limit blocks (2); the limit blocks (2) are located in the corresponding installation slots (3); the limit blocks (2) extend into the corresponding first slot (4) on a side close to the cross impact drill bit (100) and are fixedly connected to the vertical rod (7); an elastic shielding cloth (5) is fixedly connected between the side of the vertical rod (7) close to the cross impact drill bit (100) and the inner wall of one side of the corresponding first slot (4).

3. A large-size impact drill bit for rapid drilling according to claim 2, characterized in that: The threaded drive assembly comprises a screw rod (11), which is rotatably mounted on an inner wall of a corresponding second groove (6) close to a cross impact drill bit (100); a groove (12) with openings on both sides is provided on a side of the mounting block (1) away from the cross impact drill bit (100); an end of the screw rod (11) away from the cross impact drill bit (100) extends into the corresponding groove (12) and is fixedly connected to a knob (13); and a vertical rod (7) is threadedly sleeved on the corresponding screw rod (11).

4. A large-size impact drill bit for rapid drilling according to claim 3, characterized in that: A through hole (15) connected to the corresponding second groove (6) is provided on the inner wall of the groove (12) near the cross impact drill bit (100), and two first bearings are fixedly sleeved in the through hole (15), and the inner side of the inner ring of the first bearing is fixedly connected to the outer side of the corresponding screw rod (11).

5. A large-size impact drill bit for rapid drilling according to claim 3, characterized in that: A threaded hole is provided on one side of the vertical rod (7), and the threaded hole is threadedly connected to the corresponding screw rod (11).

6. A large-size impact drill bit for rapid drilling according to claim 2, characterized in that: The top of the annular steel plate (14) is in active contact with the top inner walls of the four mounting grooves (3), and the side of the clamping block (9) away from the corresponding vertical rod (7) is in active contact with the inner wall of the side of the clamping groove (10) away from its opening.

7. A large-size impact drill bit for rapid drilling according to claim 2, characterized in that: The two sides of the elastic shielding cloth (5) are in active contact with the inner walls of the two sides of the corresponding first groove (4) respectively.

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