High-strength auger bit

Abstract

The utility model belongs to the technical field of high-strength auger bits, and particularly relates to a high-strength auger bit, which comprises an auger bit, a drill handle and a slot, the drill handle is positioned above the auger bit, the slot is arranged at the bottom of the drill handle, a rectangular rod is mounted in the slot in an inserted manner, and the bottom of the rectangular rod is tightly welded with the top of the auger bit. A second installation groove is formed in the top of the drill handle, a sleeve is installed in the second installation groove in an inserted mode, a second limiting rod fixed to the inner wall of the second installation groove is installed in the sleeve in an inserted mode, a lengthening handle is fixedly installed at the top of the second limiting rod, and a first installation groove is formed in the lengthening handle. The drill bit can drill to a deeper position, use is more convenient, the drill bit can be detached from the drill handle, the drill handle does not need to be detached from the electric drill, and the mode of replacing the drill bit is more convenient and rapid.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-strength twist drill bits, and particularly relates to a high-strength twist drill bit. Background Technology

[0002] A twist drill is a tool that drills round holes in a workpiece by rotating its blades relative to a fixed axis. It is named for its spiral-shaped chip flutes, which resemble a twisted rope.

[0003] When using existing twist drills, some fixed-length twist drills cannot reach the required depth for deeper drilling, making them inconvenient to use. Furthermore, if the drill bit is damaged during drilling, the drill shank needs to be removed from the drill, and the shank installation method on some drills is quite complex, making removal inconvenient and time-consuming. Therefore, we propose a high-strength twist drill bit. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength twist drill bit to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a high-strength twist drill bit, comprising a twist drill bit and a drill shank, wherein the drill shank is located above the twist drill bit, and further comprising:

[0006] The slot is located at the bottom of the drill shank. A rectangular rod is inserted into the slot, and the bottom of the rectangular rod is tightly welded to the top of the twist drill bit. The top of the drill shank has a second mounting groove, in which a sleeve is inserted. A second limiting rod, which is fixed to the inner wall of the second mounting groove, is inserted into the sleeve. An extension shank is fixedly installed on the top of the second limiting rod. An installation groove is located in the extension shank, and a first limiting rod is fixedly installed in the first installation groove.

[0007] A fixing component, located inside the drill shank and used to fix the sleeve;

[0008] A T-slot is formed inside the drill shank and located on one side of the slot. A T-shaped rod is slidably installed inside the T-slot, and one end of the T-shaped rod extends into a rectangular rod.

[0009] A limiting component, located inside the drill shank, is used to limit the T-shaped rod.

[0010] In this technical solution, during installation, the operator determines the drilling depth as needed. When the drilling depth is deep, the operator inserts the sleeve at the bottom of the extended handle into the second mounting slot, allowing the second limiting rod to enter the sleeve until the bottom of the sleeve contacts the bottom of the second mounting slot. Then, the fixing component secures the sleeve in the second mounting slot. If further extension is required, the operator inserts the sleeve at the bottom of another extended handle into the first mounting slot, allowing the first limiting rod to enter the sleeve at the bottom of the other extended handle. The sleeve at the bottom of the other extended handle is then secured in the first mounting slot. Finally, the extended handle can be installed into the mounting hole of the electric drill.

[0011] If the twist drill bit is damaged during operation, the limiting component can be used to release the T-shaped rod from its limit. The T-shaped rod can then be moved out of the T-slot, allowing one end of the T-shaped rod to be pulled out of the rectangular rod. At this point, the rectangular rod will be released from its fixation, and it can then be pulled out of the slot to replace the twist drill bit.

[0012] In the above technical solution, the fixing component further includes:

[0013] A circular hole 1 is provided inside the drill shank and located on one side of the mounting groove 2. A fixing screw is provided inside the circular hole 1. One end of the fixing screw passes through one side of the circular hole 1 and extends into the sleeve and the limiting rod 2. A circular hole 2 is provided on the extended shank and located on one side of the mounting groove 1.

[0014] In this technical solution, the worker uses a screwdriver to thread one end of the fixing screw into the drill shank, so that the thread of one end of the fixing screw is installed into the sleeve and the second limiting rod. At this time, the sleeve will be fixed in the second mounting groove.

[0015] In the above technical solution, one end of the fixing screw is further connected to the drill shank, the sleeve and the limiting rod by two threads.

[0016] In this technical solution, the threaded connection ensures that one end of the fixing screw can be threaded into the drill shank, sleeve, and limit rod.

[0017] In the above technical solution, the limiting component further includes:

[0018] A slid groove is formed inside the drill shank and located at the bottom of the T-shaped groove. A sliding plate is slidably installed inside the slid groove, with one end of the sliding plate extending into the T-shaped groove. Several springs are fixedly installed at the bottom of the slid groove and tightly welded to the inner wall of the slid groove.

[0019] In this technical solution, if the twist drill bit is damaged during operation, the operator can push the slide plate downwards. The slide plate will move downwards within the groove, at which point several springs will be compressed and contract until the top of the slide plate moves to the bottom of the T-shaped rod. At this point, the T-shaped rod will be released from its limit and can be moved out of the T-groove, allowing one end of the T-shaped rod to be pulled out of the rectangular rod. The rectangular rod will then be released from its fixation and can be pulled out of the slot to replace the twist drill bit.

[0020] In the above technical solution, one side of the slide plate contacts the T-shaped rod, the slide plate is slidably connected to the T-shaped groove, and the slide plate has an L-shaped structure.

[0021] In this technical solution, the slide plate is designed to limit the T-shaped bar, ensuring that the slide plate can slide within the T-shaped groove. The slide plate has an L-shaped structure, which makes it easy for workers to press the slide plate.

[0022] In the above technical solution, a buffer plate that contacts the top of the twist drill bit is further fixedly installed at the bottom of the drill shank.

[0023] In this technical solution, the buffer plate is designed to buffer the force generated when the twist drill bit rotates.

[0024] In the above technical solution, one end of the T-shaped rod is further inserted into the rectangular rod.

[0025] In this technical solution, it is ensured that one end of the T-shaped rod can be inserted into the rectangular rod.

[0026] The beneficial effects of this utility model are:

[0027] 1. This high-strength twist drill bit, through the cooperation of the extended shank, limit rod two, sleeve, limit rod one, mounting groove one, mounting groove two and fixing components, ensures that the drill shank can be extended, so that the drill bit can drill to a deeper depth and is more convenient to use.

[0028] 2. This high-strength twist drill bit, through the cooperation of the slot, rectangular rod, T-slot, T-rod and limiting component, ensures that the drill bit can be removed from the drill shank without removing the drill shank from the electric drill, making the drill bit replacement more convenient and faster. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the drill shank and the extended shank in this utility model;

[0031] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0032] Figure 4 This is a cross-sectional structural diagram of the drill shank in this utility model;

[0033] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B.

[0034] The markings in the diagram are as follows:

[0035] 1. Twist drill bit; 2. Drill shank; 3. Extended shank; 4. Buffer plate; 5. Fixing screw; 6. Sleeve; 7. Rectangular rod; 8. Mounting slot one; 9. Limiting rod one; 10. Limiting rod two; 11. Round hole one; 12. Round hole two; 13. T-shaped rod; 14. Slide groove; 15. Spring; 16. Slide plate; 17. Slot; 18. Mounting slot two; 19. T-slot. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0038] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0040] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example

[0041] Please see Figure 1 - Figure 5 As shown, this embodiment provides a high-strength twist drill bit, including a twist drill bit 1 and a drill shank 2, with the drill shank 2 located above the twist drill bit 1, and also including:

[0042] Slot 17 is located at the bottom of drill shank 2. A rectangular rod 7 is inserted into slot 17. The bottom of the rectangular rod 7 is tightly welded to the top of twist drill bit 1. A second mounting groove 18 is provided at the top of drill shank 2. A sleeve 6 is inserted into the second mounting groove 18. A second limiting rod 10, which is fixed to the inner wall of the second mounting groove 18, is inserted into the sleeve 6. An extension shank 3 is fixedly installed at the top of the second limiting rod 10. An installation groove 8 is provided in the extension shank 3. A first limiting rod 9 is fixedly installed in the installation groove 8.

[0043] A fixing component is located inside the drill shank 2 and is used to fix the sleeve 6;

[0044] T-slot 19, T-slot 19 is formed in drill shank 2 and located on one side of slot 17, T-bar 13 is slidably installed in T-slot 19, one end of T-bar 13 extends into rectangular bar 7;

[0045] A limiting component is located inside the drill shank 2 and is used to limit the T-shaped rod 13.

[0046] During installation, the operator determines the drilling depth as needed. When the drilling depth is deep, the operator inserts the sleeve 6 at the bottom of the extension handle 3 into the second mounting groove 18, allowing the second limiting rod 10 to enter the sleeve 6 until the bottom of the sleeve 6 contacts the bottom of the second mounting groove 18. Then, the fixing component secures the sleeve 6 in the second mounting groove 18. If further extension is required, the operator inserts the sleeve 6 at the bottom of another extension handle 3 into the first mounting groove 8, allowing the first limiting rod 9 to enter the sleeve 6 at the bottom of the other extension handle 3. The sleeve 6 at the bottom of the other extension handle 3 is then secured in the first mounting groove 8. Finally, the extension handle 3 can be installed into the mounting hole of the electric drill.

[0047] If the twist drill bit 1 is damaged during operation, the limiting component can be used to release the T-shaped rod 13. Then, the T-shaped rod 13 can be moved out of the T-slot 19, so that one end of the T-shaped rod 13 can be pulled out of the rectangular rod 7. At this time, the rectangular rod 7 will be released from its fixation, and then the rectangular rod 7 can be pulled out of the slot 17 to replace the twist drill bit 1. Example

[0048] This embodiment provides a high-strength twist drill bit, which, in addition to the technical solutions of the above embodiments, also has the following technical features, wherein the fixing component includes:

[0049] A circular hole 11 is provided in the drill shank 2 and located on one side of the mounting groove 18. A fixing screw 5 is provided in the circular hole 11. One end of the fixing screw 5 passes through one side of the circular hole 11 and extends into the sleeve 6 and the limiting rod 10. A circular hole 12 is provided on the extended shank 3 and located on one side of the mounting groove 8.

[0050] During the process, the workers used a screwdriver to thread one end of the fixing screw 5 into the drill shank 2, and then threaded the other end of the fixing screw 5 into the sleeve 6 and the second limiting rod 10. At this time, the sleeve 6 will be fixed in the second mounting groove 18. Example

[0051] This embodiment provides a high-strength twist drill bit, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one end of the fixing screw 5 is threadedly connected to the drill shank 2, the sleeve 6, and the limiting rod 10.

[0052] The threaded mechanism ensures that one end of the fixing screw 5 can be threaded into the drill shank 2, sleeve 6, and limit rod 10. Example

[0053] This embodiment provides a high-strength twist drill bit, which, in addition to the technical solutions of the above embodiments, also has the following technical features, wherein the limiting component includes:

[0054] The slide groove 14 is formed inside the drill shank 2 and located at the bottom of the T-shaped groove 19. A slide plate 16 is slidably installed inside the slide groove 14, with one end of the slide plate 16 extending into the T-shaped groove 19. Several springs 15 are fixedly installed at the bottom of the slide groove 14 and tightly welded to the inner wall of the slide groove 14.

[0055] If the twist drill bit 1 is damaged during operation, the operator can push the slide plate 16 downwards. The slide plate 16 will move downwards within the slide groove 14. At this time, several springs 15 will be compressed and contract until the top of the slide plate 16 moves to the bottom of the T-shaped rod 13. At this time, the T-shaped rod 13 will be released from its limit and can be moved out of the T-shaped groove 19, so that one end of the T-shaped rod 13 can be pulled out from the rectangular rod 7. At this time, the rectangular rod 7 will be released from its fixation and can then be pulled out from the slot 17 to replace the twist drill bit 1. Example

[0056] This embodiment provides a high-strength twist drill bit, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one side of the slide plate 16 is in contact with the T-shaped rod 13, the slide plate 16 is slidably connected to the T-shaped groove 19, and the slide plate 16 has an L-shaped structure.

[0057] Specifically, the slide plate 16 is designed to limit the T-shaped rod 13 and ensure that the slide plate 16 can slide within the T-shaped groove 19. The slide plate 16 has an L-shaped structure, which makes it easy for workers to press the slide plate 16. Example

[0058] This embodiment provides a high-strength twist drill bit, which, in addition to the technical solutions of the above embodiments, also has the following technical features: a buffer plate 4 is fixedly installed at the bottom of the drill shank 2, which contacts the top of the twist drill bit 1.

[0059] Among them, it is ensured that the buffer plate 4 can buffer the force generated when the twist drill bit 1 rotates. Example

[0060] This embodiment provides a high-strength twist drill bit, which, in addition to the technical solutions of the above embodiments, also has the following technical features: one end of the T-shaped rod 13 is inserted into the rectangular rod 7.

[0061] Specifically, ensure that one end of the T-shaped rod 13 can be inserted into the rectangular rod 7.

[0062] It is worth noting that twist drill bit 1 is made of cobalt-molybdenum alloy, a special alloy material with high hardness, strength and wear resistance, which can adapt to high temperature and high speed cutting environments.

[0063] Working principle: During installation, the operator determines the drilling depth as needed. When the drilling depth is deep, the operator inserts the sleeve 6 at the bottom of the extension shank 3 into the mounting groove 18, allowing the limiting rod 10 to enter the sleeve 6 until the bottom of the sleeve 6 contacts the bottom of the mounting groove 18. Then, the operator uses a screwdriver to thread one end of the fixing screw 5 into the drill shank 2, and then thread the other end of the fixing screw 5 into the sleeve 6 and the limiting rod 10. At this point, the sleeve 6 will be fixed in the mounting groove 18. When further extension is needed, the operator inserts the sleeve 6 at the bottom of another extension shank 3 into the mounting groove 8, allowing the limiting rod 9 to enter the sleeve 6 at the bottom of the other extension shank 3. Then, the operator uses a screwdriver and another fixing screw 5 to fix the sleeve 6 at the bottom of the other extension shank 3 into the mounting groove 8. Finally, the extension shank 3 can be installed into the mounting hole of the electric drill.

[0064] If the twist drill bit 1 is damaged during operation, the operator can push the slide plate 16 downwards. The slide plate 16 will move downwards within the slide groove 14. At this time, several springs 15 will be compressed and contract until the top of the slide plate 16 moves to the bottom of the T-shaped rod 13. At this time, the T-shaped rod 13 will be released from its limit and can be moved out of the T-shaped groove 19, so that one end of the T-shaped rod 13 can be pulled out from the rectangular rod 7. At this time, the rectangular rod 7 will be released from its fixation and can then be pulled out from the slot 17 to replace the twist drill bit 1.

[0065] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-strength twist drill bit, comprising a twist drill bit (1) and a drill shank (2), wherein the drill shank (2) is located above the twist drill bit (1), characterized in that, Also includes: Slot (17), the slot (17) is opened at the bottom of the drill shank (2), a rectangular rod (7) is inserted into the slot (17), the bottom of the rectangular rod (7) is tightly welded to the top of the twist drill bit (1), the top of the drill shank (2) is provided with a second mounting groove (18), a sleeve (6) is inserted into the second mounting groove (18), a limiting rod (10) fixed to the inner wall of the second mounting groove (18) is inserted into the sleeve (6), an extension shank (3) is fixedly installed at the top of the limiting rod (10), an installation groove (8) is opened in the extension shank (3), and a limiting rod (9) is fixedly installed in the installation groove (8); A fixing component is located inside the drill shank (2) and is used to fix the sleeve (6). T-slot (19), the T-slot (19) is opened in the drill shank (2) and located on one side of the slot (17), a T-rod (13) is slidably installed in the T-slot (19), one end of the T-rod (13) extends into the rectangular rod (7); A limiting component is located inside the drill shank (2) and is used to limit the T-shaped rod (13).

2. A high-strength twist drill bit according to claim 1, characterized in that, The fixing component includes: A circular hole (11) is provided in the drill shank (2) and located on one side of the mounting groove (18). A fixing screw (5) is provided in the circular hole (11). One end of the fixing screw (5) passes through one side of the circular hole (11) and extends into the sleeve (6) and the limiting rod (10). A circular hole (12) is provided on the extended shank (3) and located on one side of the mounting groove (8).

3. A high-strength twist drill bit according to claim 2, characterized in that, One end of the fixing screw (5) is threadedly connected to the drill shank (2), the sleeve (6) and the limiting rod (10).

4. A high-strength twist drill bit according to claim 1, characterized in that, The limiting component includes: The slide (14) is opened in the drill shank (2) and located at the bottom of the T-shaped groove (19). A slide plate (16) is slidably installed in the slide (14). One end of the slide plate (16) extends into the T-shaped groove (19). Several springs (15) are fixedly installed at the bottom of the slide (14) and tightly welded to the inner wall of the slide (14).

5. A high-strength twist drill bit according to claim 4, characterized in that, One side of the slide plate (16) is in contact with the T-shaped rod (13), the slide plate (16) is slidably connected to the T-shaped groove (19), and the slide plate (16) has an L-shaped structure.

6. A high-strength twist drill bit according to claim 1, characterized in that, The bottom of the drill shank (2) is fixedly fitted with a buffer plate (4) that contacts the top of the twist drill bit (1).

7. A high-strength twist drill bit according to claim 1, characterized in that, One end of the T-shaped rod (13) is inserted into the rectangular rod (7).

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