Drill bit for dewatering well drilling equipment

Abstract

The utility model relates to the technical field of drill bits, and discloses a drill bit for dewatering well drilling equipment, which comprises a mounting seat, an inserting rod is inserted into the bottom of the mounting seat, and the bottom end of the inserting rod is fixedly connected with a connecting piece. An inserting rod is inserted into the bottom end of a mounting seat, a convex block is clamped with a clamping groove, and a clamping bolt is inserted into a clamping hole, so that the inserting rod is fixed in the mounting seat, a drill bit is fixedly mounted, and when the drill bit needs to be replaced, a sleeve is held by a hand to drive the sleeve to move downwards, and after a first inner groove is exposed, the clamping bolt is pulled out; after a new drill bit is replaced and the clamping bolt is inserted into the clamping hole, the sleeve is loosened by the hand, at the moment, the elastic force of the spring is applied to the surface of the inner sleeve plate, the sleeve is driven to move and cover the surface of the first inner groove, and therefore the drill bit is replaced by the new drill bit and the clamping bolt is inserted into the clamping hole. Therefore, the clamping bolt is prevented from being separated from the interior of the first inner groove, and fixed installation of the drill bit is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bits, in particular to a drill bit for dewatering well drilling equipment. Background Art

[0002] The existing drill bit is fixedly connected to the drill rod by threaded connection. When the drill bit hits the rock during operation, a strong impact force is generated, which damages the cutting edge of the drill bit and causes the drill bit to be scrapped.

[0003] In the prior art, the inventors found that there are at least the following problems in the technology:

[0004] (1) The current drill bit installation method causes the drill bit to break when encountering hard objects, but the drill bit cannot be quickly replaced, which is poor in practicality. When the drill bit is damaged, only the entire drill bit structure can be replaced, and the damaged drill bit cannot be replaced individually;

[0005] (2) The existing drill bit is spiral-shaped, which not only has low drilling efficiency but also is easy to drill off-center. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a drill bit for a dewatering well drilling device, which has the advantages of being easy to replace and install the drill bit and being able to increase the drilling rate, thereby solving the problems raised in the background technology.

[0007] The utility model provides the following technical solution: a drill bit for a dewatering well drilling device, comprising a mounting seat, a plug rod is inserted into the bottom of the mounting seat, a connecting piece is fixedly connected to the bottom end of the plug rod, a drill bit is fixedly connected to the bottom end of the connecting piece, a groove is provided on the side wall of the mounting seat, an inner groove 1 is provided on the surface of the groove, a bolt is slidably inserted into the groove wall of the inner groove 1, and a sleeve is slidably sleeved on the surface of the groove.

[0008] Preferably, a protrusion is fixedly connected to the inner wall of the mounting seat, and a slot is provided on the surface of the insertion rod, and the size and specification of the slot match the protrusion.

[0009] Preferably, a slot wall of the card slot is provided with a card hole, and the card hole matches the model and specification of the card bolt.

[0010] Preferably, an inner groove one is formed on the groove wall surface of the groove, and the latch is movably plugged into the groove wall of the inner groove one.

[0011] Preferably, the groove wall of the groove is provided with an inner groove 2, the inner wall of the inner groove 2 is fixedly connected with a sliding rod, the surface of the sliding rod is movably sleeved with a spring, the inner wall of the sleeve is fixedly connected with an inner sleeve plate, the inner sleeve plate is slidably sleeved on the surface of the sliding rod, the top end of the spring abuts against the lower surface of the inner sleeve plate, and the bottom end of the spring abuts against the bottom of the inner groove 2.

[0012] Preferably, a spiral blade is fixedly connected to the surface of the drill bit.

[0013] Preferably, three drill wheels are rotatably connected to the bottom end of the drill bit, drill teeth are fixedly connected to the sides of the drill wheels, and tungsten steel blocks are fixedly connected to the surfaces of the drill teeth.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By inserting the insertion rod into the bottom end of the mounting seat, the protrusion will be engaged with the card slot, and the card bolt will be inserted into the inside of the card hole, so that the insertion rod is fixed in the inside of the mounting seat, so that the drill bit is fixedly installed. At the same time, when the drill bit needs to be replaced, the person holds the sleeve and drives it to move downward. After the inner groove 1 is exposed, the card bolt is pulled out, thereby releasing the card connection state between the card bolt and the card hole, making it convenient to pull the insertion rod out from the inside of the mounting seat. After replacing the new drill bit, after the card bolt is inserted into the inside of the card hole, the person manually releases the sleeve. At this time, the elastic force of the spring is applied to the surface of the inner sleeve plate, which will drive the sleeve to move and cover the surface of the inner groove 1, thereby preventing the card bolt from detaching from the inside of the inner groove 1, completing the fixed installation of the drill bit, and the device is convenient for quickly replacing the drill bit, greatly improving the practicality of the device.

[0016] 2. By setting up spiral blades and a drill wheel, the tungsten steel block on the drill tooth surface of the drill wheel is used for drilling. When the drill bit rotates to drill, the spiral blades rub against the drilled hole wall and can abut against the surface of the well wall, thereby having a straightening effect on the device, so that the end of the drill bit can be stuck in the well to prevent the drill bit from deviating. The rotation of the drill wheel and the friction of the tungsten steel block are used to greatly improve the drilling speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model device;

[0018] Figure 2 This is a schematic diagram of the structure of the mounting seat of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting seat of the utility model;

[0020] Figure 4 This is a schematic diagram of the rod structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the drill bit structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the sleeve structure of the utility model.

[0023] In the figure: 1. mounting seat; 2. groove; 3. sleeve; 4. inner sleeve plate; 5. inner groove one; 6. latch bolt; 7. inner groove two; 8. slide rod; 9. spring; 10. bump; 11. plug rod; 12. latch groove; 13. latch hole; 14. connector; 15. drill bit; 16. spiral blade; 17. drill wheel; 18. drill tooth; 19. tungsten steel block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-6 A drill bit for a dewatering well drilling device comprises a mounting base 1, a plug rod 11 is inserted at the bottom of the mounting base 1, a connecting piece 14 is fixedly connected to the bottom end of the plug rod 11, a drill bit 15 is fixedly connected to the bottom end of the connecting piece 14, a groove 2 is provided on the side wall of the mounting base 1, an inner groove 5 is provided on the surface of the groove 2, a bolt 6 is slidably inserted into the groove wall of the inner groove 5, and a sleeve 3 is slidably sleeved on the surface of the groove 2.

[0026] Among them, a protrusion 10 is fixedly connected to the inner wall of the mounting seat 1, and a card slot 12 is provided on the surface of the insertion rod 11. The card slot 12 matches the model and specification of the protrusion 10. The groove wall of the card slot 12 is provided with a card hole 13. The card hole 13 matches the model and specification of the card bolt 6. An inner groove 5 is provided on the groove wall surface of the groove 2. The card bolt 6 is movably inserted into the groove wall of the inner groove 5. When the drill bit 15 needs to be replaced, a person holds the sleeve 3 by hand and drives it to move downward. After the inner groove 5 is exposed, the card bolt 6 is pulled out, thereby releasing the card bolt 6 from the card hole 13.

[0027] Among them, the groove wall of the groove 2 is provided with an inner groove 2 7, the inner wall of the inner groove 2 7 is fixedly connected with a slide rod 8, the surface of the slide rod 8 is movably sleeved with a spring 9, the inner wall of the sleeve 3 is fixedly connected with an inner sleeve plate 4, the inner sleeve plate 4 is slidably sleeved on the surface of the slide rod 8, the top end of the spring 9 abuts against the lower surface of the inner sleeve plate 4, and the bottom end of the spring 9 abuts against the groove bottom of the inner groove 2 7. After replacing the new drill bit 15, after the bolt 6 is inserted into the inside of the clamping hole 13, the sleeve 3 is manually released. At this time, the elastic force of the spring 9 is applied to the surface of the inner sleeve plate 4, which will drive the sleeve 3 to move and cover the surface of the inner groove 1 5, thereby preventing the bolt 6 from detaching from the inside of the inner groove 1 5.

[0028] Among them, the surface of the drill bit 15 is fixedly connected with a spiral blade 16, which rubs against the drilled hole wall and can abut against the surface of the well wall, thereby having a straightening effect on the device, so that the end of the drill bit 15 can be stuck in the well to prevent the drill bit 15 from being deviated.

[0029] Among them, the bottom end of the drill bit 15 is rotatably connected to three drill wheels 17, the side of the drill wheel 17 is fixedly connected to a drill tooth 18, and the surface of the drill tooth 18 is fixedly connected to a tungsten steel block 19. The rotation of the drill wheel 17 and the friction of the tungsten steel block 19 greatly improve the drilling speed.

[0030] Working principle: When the device is in use, the insertion rod 11 is inserted into the bottom end of the mounting seat 1, and the protrusion 10 will be engaged with the card slot 12, and the card bolt 6 is inserted into the inside of the card hole 13, so that the insertion rod 11 is fixed inside the mounting seat 1, so that the drill bit 15 is fixedly installed. At the same time, when the drill bit 15 needs to be replaced, the sleeve 3 is held by hand to drive it to move downward, and after the inner groove 5 is exposed, the card bolt 6 is pulled out, thereby releasing the card connection state between the card bolt 6 and the card hole 13, making it convenient to pull the insertion rod 11 out of the mounting seat 1. After replacing the new drill bit 15, the card bolt 6 is inserted into the card hole 13. After drilling, the sleeve 3 is manually released. At this time, the elastic force of the spring 9 is applied to the surface of the inner sleeve plate 4, which will drive the sleeve 3 to move and cover the surface of the inner groove 5, thereby preventing the bolt 6 from being separated from the inside of the inner groove 5, and completing the fixed installation of the drill bit 15. When the drill bit 15 rotates to drill, the spiral blades 16 rub against the drilled hole wall and can abut against the surface of the well wall, thereby having a straightening effect on the device, so that the end of the drill bit 15 can be stuck in the well to prevent the drill bit 15 from being deviated. The rotation of the drill wheel 17 and the friction of the tungsten steel block 19 are used to greatly improve the drilling speed.

[0031] In the description, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0032] 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 drill bit for a dewatering well drilling device, characterized in that: The invention comprises a mounting seat (1), a plug rod (11) is inserted into the bottom of the mounting seat (1), a connecting piece (14) is fixedly connected to the bottom end of the plug rod (11), a drill bit (15) is fixedly connected to the bottom end of the connecting piece (14), a groove (2) is provided on the side wall of the mounting seat (1), an inner groove (5) is provided on the surface of the groove (2), a bolt (6) is slidably inserted into the groove wall of the inner groove (5), and a sleeve (3) is slidably sleeved on the surface of the groove (2).

2. A drill bit for a dewatering well drilling device according to claim 1, characterized in that: A protrusion (10) is fixedly connected to the inner wall of the mounting seat (1), and a slot (12) is provided on the surface of the insertion rod (11), wherein the size and specification of the slot (12) match that of the protrusion (10).

3. A drill bit for a dewatering well drilling device according to claim 2, characterized in that: A slot wall of the clamping slot (12) is provided with a clamping hole (13), and the clamping hole (13) matches the model and specification of the clamping bolt (6).

4. A drill bit for a dewatering well drilling device according to claim 1, characterized in that: An inner groove (5) is provided on the groove wall surface of the groove (2), and the latch (6) is movably plugged into the groove wall of the inner groove (5).

5. The drill bit for a dewatering well drilling device according to claim 1, characterized in that: The groove wall of the groove (2) is provided with an inner groove (7), the inner wall of the inner groove (7) is fixedly connected with a slide rod (8), the surface of the slide rod (8) is movably sleeved with a spring (9), the inner wall of the sleeve (3) is fixedly connected with an inner sleeve plate (4), the inner sleeve plate (4) is slidably sleeved on the surface of the slide rod (8), the top end of the spring (9) is in contact with the lower surface of the inner sleeve plate (4), and the bottom end of the spring (9) is in contact with the bottom of the inner groove (7).

6. A drill bit for a dewatering well drilling device according to claim 1, characterized in that: A spiral blade (16) is fixedly connected to the surface of the drill bit (15).

7. A drill bit for a dewatering well drilling device according to claim 1, characterized in that: The bottom end of the drill bit (15) is rotatably connected to three drill wheels (17), the side of the drill wheel (17) is fixedly connected to drill teeth (18), and the surface of the drill teeth (18) is fixedly connected to a tungsten steel block (19).

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