A multi-directional impact cushioning type diamond drill tool connecting mechanism

Abstract

The application discloses a multi-directional impact buffering type diamond drilling tool connecting mechanism and relates to the technical field of diamond drilling tools.The drilling tool main body is provided with a connecting frame at one end, a plurality of mounting grooves are uniformly arranged on the bottom circumference of the drilling tool main body, and a connecting device is arranged in the mounting grooves.The vertical surface of the trapezoidal block is in abutment with the disc bottom surface of the T-shaped cylinder through the arrangement of the connecting device, and the cutting tooth bit is mounted at the sleeve column, so that the mounting operation of the cutting tooth bit is realized.The abutment mounting mode of the vertical surface of the trapezoidal block and the disc bottom surface of the T-shaped cylinder provides more uniform force transmission, avoids the mode of pounding the cutting tooth bit into the sleeve column, and avoids the problems of damage or misplacement of the cutting tooth bit or the sleeve column caused by the relatively large impact force, so that the stability of the cutting tooth bit is ensured, and loosening is prevented.

Description

Technical Field

[0001] This invention relates to the field of diamond drill bit technology, specifically to a multi-directional impact buffer type diamond drill bit connection mechanism. Background Technology

[0002] Diamond drill bits are drilling tools that use diamond as the primary cutting material and are widely used in oil and gas exploration and mining. The hardness and wear resistance of diamond enable drill bits to efficiently penetrate hard rock formations, extend their service life, and increase drilling speed. Depending on different drilling needs, diamond drill bits come in various types, such as composite diamond drill bits and diamond-coated drill bits, to meet the drilling requirements of different working conditions. In diamond drill bits, composite diamond cutting teeth are often installed at the drill bit for use.

[0003] Chinese patent publication number CN209761340U discloses a novel rotary drilling rig with a new type of cutting tooth holder. It includes an annular cylinder, and the cutting teeth comprise outer, middle, and inner teeth. These teeth are mounted on mounting positions on the cylinder via tooth holders. The upper mounting seat for the outer teeth is an outer upper mounting seat, with an inclined outer mounting surface on its outer side. This outer mounting surface mates with and is welded to the mounting position below the cylinder. Similarly, the upper mounting seat for the inner teeth is an inner upper mounting seat, with an inclined inner mounting surface on its inner side. This inner mounting surface mates with and is welded to the mounting position below the cylinder. Finally, the upper mounting seat for the middle teeth is a middle upper mounting seat, with a horizontal mounting surface on its upper surface. This horizontal mounting surface mates with and is welded to the mounting position below the cylinder. This rotary drilling rig offers advantages such as wear-resistant upper tooth holders, reduced maintenance time, and guaranteed accuracy.

[0004] However, the current diamond drilling tools have the following problems: the installation method of the cutting tooth drill bit is to hammer the sleeve of the cutting tooth drill bit into the ring sleeve. Since the installation method of the cutting tooth drill bit mainly relies on hammering, it is easy to fall off if it becomes loose during rotary drilling. Therefore, we propose a multi-directional impact buffer type diamond drilling tool connection mechanism. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-directional impact buffer type diamond drill bit connection mechanism, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-directional impact buffer type diamond drill bit connection mechanism, comprising a drill bit body, a connecting frame fixed to one end of the drill bit body, a plurality of mounting grooves evenly distributed around the bottom circumference of the drill bit body, a connecting device disposed inside the mounting grooves, the connecting device comprising a mounting shell, the mounting shell being fixedly mounted to the mounting grooves by bolts, a sleeve being obliquely penetrating and slidably mounted through the bottom of the mounting shell, a cutting drill bit being inserted into the bottom of the sleeve, a T-shaped cylinder being fixed to the top of the cutting drill bit, four sliding plates evenly fixed around the circumference of the inner wall of the middle part of the sleeve, trapezoidal blocks being slidably mounted at the bottom of the four sliding plates, and a notch for accommodating the trapezoidal blocks being provided on the inner wall of the sleeve. A spring is provided between the trapezoidal block and the inner wall of the recess of the sleeve. The bottom of the trapezoidal block is inclined near the center of the sleeve. The vertical surface of the top of the trapezoidal block abuts against the bottom surface of the T-shaped cylinder. A disassembly assembly is provided at the sleeve. When the cutting drill bit is inserted into the sleeve, the cutting drill bit drives the T-shaped cylinder, hammer block, and threaded rod to enter the sleeve simultaneously. During the process of the T-shaped cylinder entering the sleeve, the disc of the T-shaped cylinder pushes the inclined surface of the trapezoidal block, causing the trapezoidal block to move along the bottom surface of the slide plate towards the inner wall of the sleeve. The spring corresponding to the trapezoidal block is compressed. When the disc of the T-shaped cylinder passes the inclined surface of the trapezoidal block, the trapezoidal block is reset by the corresponding spring, and the vertical surface of the trapezoidal block abuts against the bottom surface of the disc of the T-shaped cylinder. At this time, the cutting drill bit is installed at the sleeve, thereby realizing the installation operation of the cutting drill bit.

[0007] According to the above technical solution, the disassembly assembly includes a ring frame and four cylinders. The ring frame is fixed to the top of the inner wall of the sleeve column. A pull column passes through the top of the ring frame. A collar is fixed to the upper outer wall of the pull column. A spring is provided between the bottom of the collar and the top of the ring frame. A limit ring is fixed to the lower outer wall of the pull column. Four T-shaped plates are evenly slidably installed on the outer circumference of the limit ring, and the T-shaped plates are vertically slidably installed on the inner wall of the sleeve column. The four cylinders are respectively fixed to the outer walls of four trapezoidal blocks. The bottom of the vertical support plate of the T-shaped plate is away from the center of the sleeve column. The cylinder is positioned on the inclined surface of the vertical support plate of the T-shaped plate. A hammer-beating assembly is provided at the bottom of the pull column. The hammer-beating assembly includes a threaded ring, which is fixed to the bottom of the pull column. A threaded rod is connected to the inside of the threaded ring. A hammer-beating block is rotatably installed at the bottom of the threaded rod. The hammer-beating block is slidably installed on the inner wall of the T-shaped cylinder. A cavity for accommodating the threaded rod is opened at the bottom of the pull column. After the T-shaped cylinder enters the sleeve column, the pull column will drive the threaded ring and the threaded rod to abut against each other under the spring force between the sleeve ring and the ring frame.

[0008] When the cutting drill bit needs to be replaced, rotate the pull column. The pull column drives the threaded ring to rotate, and the threaded ring, under the action of the threaded rod, causes the pull column to move downward. Since the limiting ring and the T-shaped plate are slidably connected, as the pull column moves downward, it will cause the T-shaped plate to move downward along the inner wall of the sleeve through the limiting ring. At this time, the inclined surface of the vertical support plate of the T-shaped plate will push the cylinder and move the trapezoidal block towards the recess of the sleeve. The vertical surface of the trapezoidal block is no longer in contact with the bottom surface of the T-shaped cylinder. At this time, the worker holds the pull column with one hand and rotates the cutting drill bit with the other hand. The cutting drill bit moves through the T-shaped cylinder... The rotating hammer block drives the threaded rod to rotate. The threaded rod, under the action of the threaded ring, will separate from the threaded ring. At this time, the cutting drill bit can be removed from the sleeve, thus enabling the disassembly of the cutting drill bit. When the cutting drill bit is stuck and cannot rotate, the worker pulls the pull column upward. The spring between the sleeve and the ring frame is stretched, and the pull column, through the threaded ring and the threaded rod, drives the hammer block away from the cutting drill bit. Then, the worker releases the pull column, and the pull column returns to its original position under the spring force between the sleeve and the ring frame. The pull column, through the threaded ring and the threaded rod, drives the hammer block to strike the cutting drill bit.

[0009] According to the above technical solution, a locking device is provided above the connecting device. The locking device includes a fixing ring, which is fixed to the lower inner wall of the drill body. A rotating ring is rotatably installed on the top of the inner wall of the fixing ring. Several elastic telescopic rods are evenly fixed on the top circumference of the fixing ring. An L-shaped insert is fixed to the telescopic end of the elastic telescopic rod. The vertical support of the L-shaped insert is fixed to the top of the rotating ring. The pull column passes through the bottom of the fixing ring. A slot is opened on the outer wall of the pull column. The horizontal support of the L-shaped insert is inserted into the slot of the pull column. When the pull column does not need to rotate, under the elastic force of the elastic telescopic rod, the elastic telescopic rod will drive the L-shaped insert to be inserted into the slot of the pull column, so that the L-shaped insert will restrict the position of the pull column through the slot of the pull column.

[0010] According to the above technical solution, an L-shaped spring plate is fixed to the top of the fixed end of the elastic telescopic rod, a triangular block is fixed to the top of the L-shaped insert rod, and a triangular inclined block is fixed to the bottom of the L-shaped spring plate. The inclined surface of the triangular inclined block of the L-shaped spring plate is located on the inclined surface movement trajectory of the triangular block. When the pull column needs to be released from restriction, the rotating ring is rotated, and the rotating ring drives the L-shaped insert rod to rotate. The L-shaped insert rod squeezes the telescopic end of the elastic telescopic rod, thereby causing the L-shaped insert rod to separate from the slot of the pull column. At this time, the pull column is released from restriction and can rotate. At the same time, the L-shaped insert rod drives the triangular block to move. When the triangular block moves to the position of the triangular inclined block of the L-shaped spring plate, the inclined surface of the triangular block pushes the triangular inclined block of the L-shaped spring plate to cause the L-shaped spring plate to bend upward until the triangular block passes the inclined surface of the triangular inclined block of the L-shaped spring plate. Then, the L-shaped spring plate returns to its original position under its own elastic force. The vertical surface of the triangular inclined block of the L-shaped spring plate abuts against the vertical surface of the triangular block, thereby allowing the triangular inclined block of the L-shaped spring plate to restrict the position of the L-shaped insert rod through the triangular block.

[0011] This invention provides a multi-directional impact-buffered diamond drill bit connection mechanism. It has the following beneficial effects:

[0012] (1) The present invention, through the setting of the connecting device, enables the T-shaped cylinder, hammer block, threaded rod and sleeve to work together to drive the vertical surface of the trapezoidal block to abut against the bottom surface of the T-shaped cylinder, and the cutting tooth drill bit is installed at the sleeve, thereby realizing the installation operation of the cutting tooth drill bit. The installation method of the vertical surface of the trapezoidal block abutting against the bottom surface of the T-shaped cylinder provides a more uniform force transmission, avoiding the traditional method of hammering the cutting tooth drill bit into the sleeve, which is accompanied by a large impact force, causing damage or misalignment of the cutting tooth drill bit or the sleeve, thereby helping to ensure the stability of the cutting tooth drill bit and prevent loosening.

[0013] (2) In this invention, the T-shaped cylinder, sleeve, and pull column work together. Under the spring force between the sleeve and the ring frame, the pull column will drive the threaded ring and the threaded rod to abut against each other. The pull column and the threaded ring will push the threaded rod and the hammer block to apply downward push to the cutting drill bit, so that the cutting drill bit will drive the T-shaped cylinder to move downward. This will make the bottom surface of the T-shaped cylinder's disc in close contact with the vertical surface of the trapezoidal block. This close contact can greatly enhance the fixing force of the cutting drill bit in the sleeve, preventing loosening caused by vibration or external force. The strong fixing force helps to ensure that the drill bit is more stable during operation, avoiding frequent adjustments or maintenance. When the cutting drill bit needs to be replaced, the pull column, threaded ring, threaded rod, limit ring, and T-shaped plate work together to drive the inclined surface of the vertical support plate of the T-shaped plate to push the cylinder and drive the trapezoidal block to move towards the sleeve recess. The vertical surface of the trapezoidal block will no longer abut against the bottom surface of the T-shaped cylinder's disc. At this point, the worker holds the pull column with one hand and rotates the cutting drill bit with the other. The cutting drill bit drives the hammer block to rotate through the T-shaped cylinder, and the hammer block drives the threaded rod to rotate. The threaded rod is subjected to the thread action of the threaded ring, and the threaded rod will separate from the threaded ring, allowing the cutting drill bit to be removed from the sleeve, thus enabling the disassembly of the cutting drill bit. When the cutting drill bit is stuck, the pull column, sleeve, ring frame, threaded ring, and threaded rod work together to drive the hammer block to strike the cutting drill bit. The striking force of the hammer block helps to loosen the cutting drill bit, especially when the connecting parts of the cutting drill bit cannot be rotated easily due to wear or excessive tightening force. The striking can effectively break the fixed adhesion, allowing the cutting drill bit to rotate smoothly and be disassembled, avoiding equipment damage caused by forceful disassembly. It should be noted that when the pull column drives the hammer block away from the cutting drill bit through the threaded ring and threaded rod, the hammer block will not detach from the T-shaped cylinder.

[0014] (3) By setting a locking device, under the elastic force of the elastic telescopic rod, the elastic telescopic rod will drive the L-shaped insert rod to be inserted into the slot of the pull column, so that the L-shaped insert rod will restrict the position of the pull column through the slot of the pull column, thereby ensuring that the pull column remains in the predetermined position without needing to rotate, thus avoiding the accidental rotation of the pull column that may occur during the use of the drill body; at the same time, the L-shaped insert rod, the triangular block, and the L-shaped spring plate work together to drive the vertical surface of the triangular inclined block of the L-shaped spring plate to abut against the vertical surface of the triangular block, so that the triangular inclined block of the L-shaped spring plate restricts the position of the L-shaped insert rod through the triangular block, so that the operator does not need to hold the L-shaped insert rod to rotate the pull column. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the entire invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the entire invention. Figure 2 ;

[0017] Figure 3 This is a partial structural diagram of the present invention;

[0018] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A;

[0019] Figure 5 This is a partial cross-sectional view of the connecting device of the present invention. Figure 1 ;

[0020] Figure 6 This is a partial cross-sectional view of the connecting device of the present invention. Figure 2 ;

[0021] Figure 7 This is a partial structural schematic diagram of the connecting device of the present invention;

[0022] Figure 8 This is a schematic diagram of the locking device of the present invention.

[0023] In the diagram: 1. Connecting frame; 2. Drill body; 21. Mounting slot; 3. Connecting device; 31. Mounting shell; 32. Sleeve; 33. Cutting bit; 34. T-shaped tube; 35. Slide plate; 36. Trapezoidal block; 37. Pulling column; 371. Threaded ring; 372. Threaded rod; 373. Hammering block; 38. Collar ring; 39. Ring frame; 310. Limiting ring; 311. T-shaped plate; 312. Cylinder; 4. Locking device; 41. Fixing ring; 42. Rotary ring; 43. L-shaped insert rod; 44. Elastic telescopic rod; 45. L-shaped spring plate; 46. Triangular block. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Please see Figure 1 - Figure 8One embodiment of the present invention is: a multi-directional impact buffer type diamond drill bit connection mechanism, including a drill bit body 2, a connecting frame 1 fixed to one end of the drill bit body 2, a plurality of mounting grooves 21 evenly opened on the bottom circumference of the drill bit body 2, a connecting device 3 provided inside the mounting grooves 21, the connecting device 3 including a mounting shell 31, the mounting shell 31 being fixedly installed in the mounting grooves 21 by bolts, a sleeve post 32 being obliquely penetrated and slidably installed on the bottom of the mounting shell 31, a cutting tooth drill bit 33 being inserted into the bottom of the sleeve post 32, a T-shaped cylinder 34 being fixed to the top of the cutting tooth drill bit 33, four sliding plates 35 being evenly fixed on the circumference of the inner wall of the middle part of the sleeve post 32, trapezoidal blocks 36 being slidably installed on the bottom of the four sliding plates 35, and a space for accommodating the trapezoidal blocks 36 being opened on the inner wall of the sleeve post 32. The recess of the sleeve 32 is provided with a spring between the inner wall of the recess of the trapezoidal block 36 and the sleeve 32. The bottom of the trapezoidal block 36 is inclined on the side near the center of the sleeve 32. The vertical surface of the top of the trapezoidal block 36 abuts against the bottom surface of the disc of the T-shaped cylinder 34. A disassembly assembly is provided at the sleeve 32. With the above structure, the cutting drill bit 33 is installed at the sleeve 32, thereby realizing the installation of the cutting drill bit 33. The installation method of the vertical surface of the trapezoidal block 36 abutting against the bottom surface of the disc of the T-shaped cylinder 34 provides a more uniform force transmission, avoiding the problem of damage or misalignment of the cutting drill bit 33 or the sleeve 32 caused by the traditional method of hammering the cutting drill bit 33 into the sleeve 32 with a large impact force. This helps to ensure the stability of the cutting drill bit 33 and prevent loosening.

[0026] The disassembly assembly includes a ring frame 39 and four cylinders 312. The ring frame 39 is fixed to the top of the inner wall of the sleeve column 32. A pull column 37 passes through the top of the ring frame 39. A collar 38 is fixed to the upper outer wall of the pull column 37. A spring is provided between the bottom of the collar 38 and the top of the ring frame 39. A limit ring 310 is fixed to the lower outer wall of the pull column 37. Four T-shaped plates 311 are evenly slidably installed on the outer circumference of the limit ring 310. The T-shaped plates 311 are vertically slidably installed on the inner wall of the sleeve column 32. The four cylinders 312 are respectively fixed to the outer walls of four trapezoidal blocks 36. The bottom of the vertical support plate of the T-shaped plate 311 is inclined on the side away from the center of the sleeve column 32. The cylinders 312 move along the inclined surface of the vertical support plate of the T-shaped plate 311. The bottom of the pull column 37 is equipped with a hammering assembly, which includes a threaded ring 371 fixed to the bottom of the pull column 37. A threaded rod 372 is threadedly connected to the inside of the threaded ring 371. A hammering block 373 is rotatably mounted on the bottom of the threaded rod 372 and slidably mounted on the inner wall of the T-shaped cylinder 34. The bottom of the pull column 37 has a cavity for accommodating the threaded rod 372. Through this structure, the pull column 37 and the threaded ring 371 push the threaded rod 372 and the hammering block 373 downwards on the cutting drill bit 33, causing the cutting drill bit 33 to move the T-shaped cylinder 34 downwards. This results in the bottom surface of the T-shaped cylinder 34's disc aligning with the vertical surface of the trapezoidal block 36. The tight contact significantly enhances the fixing force of the cutting drill bit 33 within the sleeve 32, preventing loosening due to vibration or external forces. This strong fixing force helps ensure greater stability of the drill bit during operation, avoiding frequent adjustments or maintenance. When the cutting drill bit 33 needs to be replaced, the aforementioned structure allows the inclined surface of the vertical support plate of the T-shaped plate 311 to push the cylinder 312, causing the trapezoidal block 36 to move towards the recess of the sleeve 32. The vertical surface of the trapezoidal block 36 no longer abuts against the bottom surface of the disc of the T-shaped cylinder 34. At this time, the operator holds the pull column 37 with one hand and rotates the cutting drill bit 33 with the other. The cutting drill bit 33, through the T-shaped cylinder 34, drives the hammer striking block 373 to rotate. The threaded rod 372 rotates, and under the threaded action of the threaded ring 371, the threaded rod 372 separates from the threaded ring 371. At this time, the cutting tooth drill bit 33 can be removed from the sleeve 32, thus enabling the disassembly of the cutting tooth drill bit 33. When the cutting tooth drill bit 33 is stuck and cannot rotate, the above-mentioned structure enables the hammer block 373 to hammer the cutting tooth drill bit 33. The hammering force of the hammer block 373 helps to loosen the cutting tooth drill bit 33. Especially when the connecting parts of the cutting tooth drill bit 33 cannot rotate easily due to wear or excessive fastening force, the hammering can effectively break the fixed adhesion, so that the cutting tooth drill bit 33 can be rotated and disassembled smoothly, avoiding equipment damage caused by forceful disassembly.It should be noted that when the pull rod 37 drives the hammer block 373 away from the cutting drill bit 33 via the threaded ring 371 and threaded rod 372, the hammer block 373 will not disengage from the T-shaped cylinder 34.

[0027] In use, when the cutting drill bit 33 needs to be installed, it is inserted into the sleeve 32. The cutting drill bit 33 drives the T-shaped cylinder 34, the hammer block 373, and the threaded rod 372 to enter the sleeve 32 simultaneously. As the T-shaped cylinder 34 enters the sleeve 32, the disc of the T-shaped cylinder 34 pushes the inclined surface of the trapezoidal block 36, causing the trapezoidal block 36 to move along the bottom of the slide plate 35 towards the inner wall of the sleeve 32. The spring corresponding to the trapezoidal block 36 is compressed. When the disc of the T-shaped cylinder 34 passes the inclined surface of the trapezoidal block 36, the trapezoidal block 36 is... When the spring returns to its normal position, the vertical surface of the trapezoidal block 36 abuts against the bottom surface of the disc of the T-shaped cylinder 34. At this time, the cutting drill bit 33 is installed at the sleeve post 32, thus realizing the installation operation of the cutting drill bit 33. The installation method of abutting the vertical surface of the trapezoidal block 36 against the bottom surface of the disc of the T-shaped cylinder 34 provides a more uniform force transmission, avoiding the problem of damage or misalignment of the cutting drill bit 33 or the sleeve post 32 caused by the traditional method of hammering the cutting drill bit 33 into the sleeve post 32 with a large impact force. This helps to ensure the stability of the cutting drill bit 33 and prevent loosening.

[0028] After the T-shaped cylinder 34 enters the sleeve 32, the pull column 37, under the spring force between the collar 38 and the ring frame 39, will drive the threaded ring 371 to abut against the threaded rod 372. The pull column 37 and the threaded ring 371 will push the threaded rod 372 and the hammer block 373 to exert a downward push on the cutting drill bit 33, thereby causing the cutting drill bit 33 to drive the T-shaped cylinder 34 to move downward. This will make the bottom surface of the disc of the T-shaped cylinder 34 in close contact with the vertical surface of the trapezoidal block 36. This close contact can greatly enhance the fixing force of the cutting drill bit 33 in the sleeve 32, preventing loosening caused by vibration or external force. The strong fixing force helps to ensure that the drill bit is more stable during operation, avoiding frequent adjustments or maintenance.

[0029] When the cutting drill bit 33 needs to be replaced, the pull column 37 is rotated. The pull column 37 drives the threaded ring 371 to rotate. The threaded ring 371, under the action of the threaded rod 372, will drive the pull column 37 to move downward. Since the limiting ring 310 and the T-shaped plate 311 are slidably connected, when the pull column 37 moves downward, the pull column 37 will drive the T-shaped plate 311 to move downward along the inner wall of the sleeve column 32 through the limiting ring 310. At this time, the inclined surface of the vertical support plate of the T-shaped plate 311 will push the cylinder 312 to drive the trapezoidal block 36 towards the sleeve column 32. 2. When the direction of the notch moves, the vertical surface of the trapezoidal block 36 no longer abuts against the bottom surface of the disc of the T-shaped cylinder 34. At this time, the worker holds the pull column 37 with one hand and rotates the cutting tooth drill bit 33 with the other hand. The cutting tooth drill bit 33 drives the hammer block 373 to rotate through the T-shaped cylinder 34. The hammer block 373 drives the threaded rod 372 to rotate. The threaded rod 372 is subjected to the thread action of the threaded ring 371. The threaded rod 372 will separate from the threaded ring 371. At this time, the cutting tooth drill bit 33 can be removed from the sleeve column 32, thus realizing the disassembly operation of the cutting tooth drill bit 33.

[0030] When the cutting bit 33 becomes stuck and cannot rotate, the operator pulls the pull column 37 upwards. This stretches the spring between the collar 38 and the ring holder 39, and the pull column 37, through the threaded ring 371 and threaded rod 372, moves the hammer block 373 away from the cutting bit 33. Then, the operator releases the pull column 37, which returns to its original position under the spring force between the collar 38 and the ring holder 39. The pull column 37, through the threaded ring 371 and threaded rod 372, then moves the hammer block 373 to strike the cutting bit 33. The striking force of 373 helps to loosen the cutting drill bit 33, especially when the connecting parts of the cutting drill bit 33 cannot be rotated easily due to wear or excessive fastening force. The striking can effectively break the fixed adhesion, so that the cutting drill bit 33 can be rotated and disassembled smoothly, avoiding equipment damage caused by forceful disassembly. It should be noted that when the pull column 37 drives the hammer striking block 373 away from the cutting drill bit 33 through the threaded ring 371 and the threaded rod 372, the hammer striking block 373 will not detach from the T-shaped cylinder 34.

[0031] Please see Figure 1 - Figure 8Based on the above embodiments, in another embodiment of the present invention, a locking device 4 is provided above the connecting device 3. The locking device 4 includes a fixing ring 41, which is fixed to the lower inner wall of the drill body 2. A rotating ring 42 is rotatably installed on the top of the inner wall of the fixing ring 41. A plurality of elastic telescopic rods 44 are evenly fixed on the top circumference of the fixing ring 41. An L-shaped insert rod 43 is fixed to the telescopic end of the elastic telescopic rod 44. The vertical support of the L-shaped insert rod 43 is fixed to the top of the rotating ring 42. A pull column 37 penetrates the bottom of the fixing ring 41. A slot is provided on the outer wall of the pull column 37. The L-shaped insert rod 43 is inserted into the slot of the pull column 37. When the pull column 37 does not need to rotate, the above structure allows the elastic telescopic rod 44 to drive the L-shaped insert rod 43 into the slot of the pull column 37. This allows the L-shaped insert rod 43 to restrict the position of the pull column 37 through the slot, thus ensuring that the pull column 37 remains in the predetermined position when it does not need to rotate. This avoids accidental rotation of the pull column 37 during the use of the drill body 2.

[0032] An L-shaped spring plate 45 is fixed to the top of the fixed end of the elastic telescopic rod 44, a triangular block 46 is fixed to the top of the L-shaped insert rod 43, and a triangular inclined block is fixed to the bottom of the L-shaped spring plate 45. The inclined surface of the triangular inclined block of the L-shaped spring plate 45 is located on the inclined surface movement trajectory of the triangular block 46. Through the above structure, the triangular inclined block of the L-shaped spring plate 45 restricts the position of the L-shaped insert rod 43 through the triangular block 46, so that the staff does not need to hold the L-shaped insert rod 43 to rotate the pull column 37.

[0033] In use, when the pull column 37 does not need to rotate, the elastic telescopic rod 44, under its elastic force, will drive the L-shaped insert rod 43 to insert into the slot of the pull column 37. This allows the L-shaped insert rod 43 to restrict the position of the pull column 37 through the slot, ensuring that the pull column 37 remains in the predetermined position when rotation is not required. This avoids accidental rotation of the pull column 37 during use of the drill body 2. When the pull column 37 needs to be released, the rotating ring 42 is rotated. The rotating ring 42 drives the L-shaped insert rod 43 to rotate, and the L-shaped insert rod 43 presses against the telescopic end of the elastic telescopic rod 44, causing the L-shaped insert rod 43 to separate from the slot of the pull column 37. Once the pull post 37 is released from its restraints, it can rotate. Simultaneously, the L-shaped insert rod 43 moves the triangular block 46. When the triangular block 46 moves to the position of the triangular inclined block of the L-shaped spring plate 45, the inclined surface of the triangular block 46 pushes the triangular inclined block of the L-shaped spring plate 45, causing the L-shaped spring plate 45 to bend upwards until the triangular block 46 passes over the inclined surface of the triangular inclined block of the L-shaped spring plate 45. Then, the L-shaped spring plate 45 returns to its original position under its own elastic force. The vertical surface of the triangular inclined block of the L-shaped spring plate 45 abuts against the vertical surface of the triangular block 46, thereby allowing the triangular inclined block of the L-shaped spring plate 45 to restrain the position of the L-shaped insert rod 43 through the triangular block 46. Thus, the operator does not need to hold the L-shaped insert rod 43 to rotate the pull post 37.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-directional impact buffer type diamond drill bit connection mechanism, comprising a drill bit body (2), characterized in that: One end of the drill body (2) is fixed with a connecting frame (1). Several mounting slots (21) are evenly opened on the bottom circumference of the drill body (2). A connecting device (3) is provided inside the mounting slot (21). The connecting device (3) includes a mounting shell (31). The mounting shell (31) is fixedly installed in the mounting slot (21) by bolts. A sleeve (32) is obliquely inserted and slidably installed at the bottom of the mounting shell (31). The bottom of the sleeve (32) is inserted into A cutting drill bit (33) is provided, a T-shaped cylinder (34) is fixed to the top of the cutting drill bit (33), four sliding plates (35) are evenly fixed to the inner wall of the middle part of the sleeve (32), trapezoidal blocks (36) are slidably installed at the bottom of the four sliding plates (35), a notch for accommodating the trapezoidal blocks (36) is provided on the inner wall of the sleeve (32), and a spring is provided between the trapezoidal blocks (36) and the inner wall of the notch of the sleeve (32), and a disassembly assembly is provided at the sleeve (32); The disassembly assembly includes a ring frame (39) and four cylinders (312). The ring frame (39) is fixed to the top of the inner wall of the sleeve column (32). A pull column (37) passes through the top of the ring frame (39). A collar (38) is fixed to the upper outer wall of the pull column (37). A spring is provided between the bottom of the collar (38) and the top of the ring frame (39). A limit ring (310) is fixed to the lower outer wall of the pull column (37). Four T-shaped plates (311) are evenly slidably installed on the outer circumference of the limit ring (310). The T-shaped plates (311) are vertically slidably installed on the inner wall of the sleeve column (32). The four cylinders (312) are respectively fixed to the outer walls of four trapezoidal blocks (36).

2. The multi-directional impact buffer type diamond drill bit connection mechanism according to claim 1, characterized in that: The bottom of the trapezoidal block (36) is inclined on the side near the center of the sleeve column (32), and the top vertical surface of the trapezoidal block (36) abuts against the bottom surface of the T-shaped cylinder (34).

3. The multi-directional impact buffer type diamond drill bit connection mechanism according to claim 1, characterized in that: The bottom of the vertical support plate of the T-shaped plate (311) is set on an inclined surface away from the center of the sleeve column (32), and the column (312) is located on the movement trajectory of the inclined surface of the vertical support plate of the T-shaped plate (311).

4. The multi-directional impact buffer type diamond drill bit connection mechanism according to claim 1, characterized in that: The bottom of the pull column (37) is provided with a hammering assembly, which includes a threaded ring (371). The threaded ring (371) is fixed to the bottom of the pull column (37). The threaded ring (371) is internally threaded with a threaded rod (372). A hammering block (373) is rotatably installed at the bottom of the threaded rod (372). The hammering block (373) is slidably installed on the inner wall of the T-shaped cylinder (34).

5. The multi-directional impact buffer type diamond drill bit connection mechanism according to claim 4, characterized in that: The bottom of the pull post (37) has a circular cavity for accommodating the threaded rod (372).

6. The multi-directional impact buffer type diamond drill bit connection mechanism according to claim 5, characterized in that: A locking device (4) is provided above the connecting device (3). The locking device (4) includes a fixing ring (41). The fixing ring (41) is fixed to the lower inner wall of the drill body (2). A rotating ring (42) is rotatably installed on the top of the inner wall of the fixing ring (41). Several elastic telescopic rods (44) are evenly fixed on the top circumference of the fixing ring (41). An L-shaped insert rod (43) is fixed to the telescopic end of the elastic telescopic rod (44). The vertical support rod of the L-shaped insert rod (43) is fixed to the top of the rotating ring (42).

7. A multi-directional impact buffer type diamond drill bit connection mechanism according to claim 6, characterized in that: The pull post (37) passes through the bottom of the fixing ring (41), and a slot is provided on the outer wall of the pull post (37). The L-shaped insert rod (43) is inserted into the slot of the pull post (37).

8. A multi-directional impact buffer type diamond drill bit connection mechanism according to claim 6, characterized in that: The top of the fixed end of the elastic telescopic rod (44) is fixed with an L-shaped spring plate (45), and the top of the L-shaped insert rod (43) is fixed with a triangular block (46).

9. A multi-directional impact buffer type diamond drill bit connection mechanism according to claim 8, characterized in that: The bottom of the L-shaped spring plate (45) is fixed with a triangular inclined block, and the inclined surface of the triangular inclined block of the L-shaped spring plate (45) is located on the inclined surface movement trajectory of the triangular block (46).

Images