Hard alloy drill bit capable of controlling drilling depth
By designing a cemented carbide drill bit with an adjustment locking mechanism and a depth adjustment rod, the problem that existing drill bits cannot flexibly control the drilling depth is solved, and convenient depth control and use are achieved.
Patent Information
- Application Number
- CN202420779076.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-16
AI Technical Summary
Existing cemented carbide drill bits cannot flexibly control the drilling depth when used, and usually rely on the operator's feeling and experience to control it, which is inconvenient to use.
A cemented carbide drill bit including a drill bit connecting rod, an adjustment locking mechanism and a depth adjustment rod are designed. By adjusting the locking mechanism and depth adjustment lever, the operator can easily control the drilling depth.
It realizes flexible control of drilling depth, making it more convenient to use, avoiding inaccuracies caused by personal feelings and experience.
Smart Images
Figure CN222643314U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drill bit equipment, in particular to a hard alloy drill bit capable of controlling the drilling depth. Background Art
[0002] A drill bit is a common tool used to drill holes in various materials. The design and material of the drill bit depend on the type of material to be processed and the required hole size. Carbide drill bits are also a type of drill bit, which are usually used to process hard materials such as metal, wood, plastic and concrete. However, the existing carbide drill bits are not able to flexibly control the drilling depth when in use. When drilling, most of them rely on the operator's personal feeling and experience to control the use, which is inconvenient. Utility Model Content
[0003] The purpose of the utility model is to provide a carbide drill bit with controllable drilling depth in order to solve the problem that the existing carbide drill bit cannot flexibly control the drilling depth when in use and the drilling is mostly inconvenient to control by relying on the operator's personal feeling and experience.
[0004] To achieve the above object, the utility model provides the following technical solution: a carbide drill bit capable of controlling the drilling depth, comprising: a drill bit connecting rod, an outer end of the drill bit connecting rod is sleeved with an adjustment locking mechanism, and one end of the adjustment locking mechanism is plugged with a depth adjustment rod;
[0005] The adjusting locking mechanism comprises an adjusting hinge shaft, one end of the adjusting hinge shaft is fixedly connected to a main locking ring, one end of the outer side of the main locking ring is fixedly connected to an adjusting socket seat, one end of the side of the adjusting socket seat is fixedly connected to an adjusting rod locking knob, an adjusting rod insertion hole is provided inside the adjusting socket seat, a locking bolt is movably passed through a protrusion at one end of the main locking ring, a locking nut is threadedly connected to one end of the locking bolt, a secondary locking ring is fixedly connected to the other end of the adjusting hinge shaft, a locking screw hole is provided inside a protrusion at one end of the secondary locking ring, and locking washers are provided inside the main locking ring and the secondary locking ring;
[0006] A connecting arm is fixedly connected below the depth adjustment rod, a roller shaft is rotatably connected inside the connecting arm, and a fitting roller is rotatably connected to one end of the outer side of the roller shaft.
[0007] As a further solution of the utility model: the locking gasket includes a fitting large gasket, one end of which is fixedly connected to a connecting small gasket, and the fitting large gasket and the connecting small gasket are both made of elastic silicone rubber material and are disconnected at one end.
[0008] As a further solution of the utility model: a depth scale bar is arranged on the outer surface of the depth adjustment rod, a drill head is fixedly connected to the lower side of the drill connecting rod, and the drill connecting rod and the drill head are both made of cemented carbide.
[0009] As a further solution of the utility model: the depth adjustment rod passes through the adjustment rod insertion hole and is movably arranged inside it, the locking bolt is threadedly connected to the locking screw hole, and the locking nut is located on the outer side of one end of the secondary locking ring protrusion and is threadedly connected to the locking bolt.
[0010] As a further solution of the utility model: the locking washer is arranged on the outer side of the drill bit connecting rod and between the inner sides of the main locking ring and the auxiliary locking ring.
[0011] As a further solution of the utility model: the connecting arms and the roller shafts are both provided in two groups, and the fitting roller is movably arranged between the two groups of connecting arms.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model selects a depth adjustment rod with a suitable length specification, inserts one end of the depth adjustment rod provided with a fitting roller downward into the adjusting rod insertion hole, and locks the depth adjustment rod by rotating the adjusting rod locking knob after the depth scale bar is inserted into a suitable length by observing that the depth scale bar is locked. When drilling, the drilling depth can be judged when the fitting roller fits the surface of the workpiece to be drilled, and by setting a rotating fitting roller, a certain guiding rolling effect can be achieved during fitting, preventing the depth adjustment rod from being broken when the drill bit is rotating during drilling. In this way, the drilling depth can be conveniently controlled and the use is more convenient.
[0014] The utility model discloses that after the locking washer is sleeved on the outside of the drill bit connecting rod, the main locking ring and the auxiliary locking ring are sleeved on the outside thereof, and the hinge shaft is adjusted to rotate and then it is screwed and fixed by the locking bolt, and then the locking nut is screwed on the locking bolt after passing through the auxiliary locking ring. In this way, the connection can be fixed more firmly, and the locking washer made of elastic silicone material can play an anti-slip locking effect. At the same time, due to the design of the disconnected opening on one side, it can adapt to drill bits of different specifications within a certain diameter for locking use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of a cemented carbide drill bit capable of controlling the drilling depth described in the utility model;
[0016] Figure 2 It is a structural schematic diagram of an adjusting locking mechanism in a carbide drill bit capable of controlling drilling depth according to the utility model;
[0017] Figure 3It is a structural schematic diagram of a depth adjustment rod in a carbide drill bit capable of controlling the drilling depth described in the utility model;
[0018] Figure 4 It is a schematic diagram of the enlarged structure of the A position in the cemented carbide drill bit capable of controlling the drilling depth described in the utility model;
[0019] Figure 5 The utility model is a structural schematic diagram of a locking washer in a carbide drill bit capable of controlling drilling depth.
[0020] In the figure: 1. Drill bit connecting rod; 2. Adjustment locking mechanism; 3. Depth adjustment rod; 4. Adjustment hinge shaft; 5. Main locking ring; 6. Adjustment socket seat; 7. Adjustment rod locking knob; 8. Adjustment rod socket; 9. Locking bolt; 10. Locking nut; 11. Secondary locking ring; 12. Locking screw hole; 13. Locking washer; 14. Connecting arm; 15. Roller shaft; 16. Fitting roller; 17. Fitting large washer; 18. Connecting small washer; 19. Depth scale bar; 20. Drill bit head. DETAILED DESCRIPTION
[0021] 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.
[0022] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" 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 a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. 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. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.
[0023] Reference Figure 1 , Figure 2 and Figure 4 In the embodiment of the utility model, a carbide drill bit capable of controlling the drilling depth comprises: a drill bit connecting rod 1, an outer end of the drill bit connecting rod 1 is sleeved with an adjusting locking mechanism 2, and a depth adjusting rod 3 is plugged into one end of the adjusting locking mechanism 2; the adjusting locking mechanism 2 comprises an adjusting hinge shaft 4, one end of the adjusting hinge shaft 4 is fixedly connected with a main locking ring 5, an outer end of the main locking ring 5 is fixedly connected with an adjusting socket seat 6, and an adjusting rod locking knob 7 is fixedly connected to the side end of the adjusting socket seat 6, an adjusting rod plug hole 8 is provided inside the adjusting socket seat 6, the depth adjusting rod 3 passes through the adjusting rod plug hole 8 and is movably arranged inside the adjusting rod plug hole 8, a locking bolt 9 is movably penetrated inside the protrusion at one end of the main locking ring 5, and a locking nut 10 is screwed on one end of the locking bolt 9, and the adjusting hinge shaft 4 is fixedly connected with a main locking ring 5. A secondary locking ring 11 is fixedly connected to the other end, and a locking screw hole 12 is opened inside the protrusion at one end of the secondary locking ring 11, and a locking bolt 9 is screwed into the matching locking screw hole 12. A locking nut 10 is located on the outer side of one end of the protrusion of the secondary locking ring 11 and is screwed into the locking bolt 9. A locking washer 13 is arranged inside the main locking ring 5 and the secondary locking ring 11, and the locking washer 13 is arranged outside the drill bit connecting rod 1 and between the inner sides of the main locking ring 5 and the secondary locking ring 11; a connecting arm 14 is fixedly connected to the bottom of the depth adjustment rod 3, and a roller shaft 15 is rotatably connected inside the connecting arm 14, and a fitting roller 16 is rotatably connected to the outer end of the roller shaft 15, and two groups of connecting arms 14 and roller shafts 15 are arranged, and the fitting roller 16 is movably arranged between the two groups of connecting arms 14.
[0024] The above scheme is adopted: select a depth adjustment rod 3 of appropriate length and insert one end of it provided with a fitting roller 16 downward into the adjustment rod insertion hole 8, and lock it by adjusting the rod locking knob 7 after observing the depth scale bar 19 inserted to the appropriate length. When drilling, the drilling depth can be judged when the fitting roller 16 fits the surface of the workpiece to be drilled, and by setting a rotating fitting roller 16, a certain guiding rolling effect can be achieved during fitting, preventing the depth adjustment rod 3 from breaking when the drill bit rotates during drilling, so that the drilling depth can be conveniently controlled and it is more convenient to use.
[0025] Reference Figure 1 , Figure 3 and Figure 5 The locking washer 13 includes a large fitting washer 17, one end of which is fixedly connected to a small connecting washer 18. Both the large fitting washer 17 and the small connecting washer 18 are made of elastic silicone rubber and one end is disconnected and opened; a depth scale bar 19 is provided on the outer surface of the depth adjustment rod 3, and a drill head 20 is fixedly connected to the bottom of the drill connecting rod 1. Both the drill connecting rod 1 and the drill head 20 are made of hard alloy material.
[0026] By adopting the above solution, the locking washer 13 made of elastic silicone material can achieve the effect of anti-slip locking. At the same time, due to the design of the disconnected opening on one side, it can be adapted to drill bits of different specifications within a certain diameter for locking use.
[0027] The working principle of the utility model is as follows: when in use, the drill bit is first installed on the drill gun, and then a locking washer 13 is sleeved on the outside of the drill bit connecting rod 1, and then a main locking ring 5 and a secondary locking ring 11 are sleeved on the outside thereof, and the hinge shaft 4 is adjusted to rotate and then screwed and fixed by a locking bolt 9, and then a locking nut 10 is screwed on the locking bolt 9 after passing through the secondary locking ring 11, so that the fixed connection can be more firmly performed, and the locking washer made of elastic silicone material can play an anti-slip locking effect. At the same time, due to the design of a disconnected opening on one side, it can adapt to different specifications within a certain diameter. The drill bit is locked for use, and then a depth adjustment rod 3 of appropriate length is selected and one end of the depth adjustment rod 3 provided with the fitting roller 16 is inserted downward into the adjusting rod insertion hole 8. After the depth scale bar 19 is inserted to an appropriate length, it is locked by the adjusting rod locking knob 7. When drilling, the drilling depth can be judged when the fitting roller 16 fits the surface of the workpiece to be drilled, and by setting a rotating fitting roller 16, a certain guiding rolling effect can be achieved during fitting, so as to prevent the depth adjustment rod 3 from being broken when the drill bit is rotating during drilling, so that the drilling depth can be conveniently controlled and it is more convenient to use.
[0028] What is described above 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 carbide drill bit capable of controlling the drilling depth, characterized in that: include: A drill bit connecting rod (1), wherein an outer end of the drill bit connecting rod (1) is sleeved with an adjusting locking mechanism (2), and one end of the adjusting locking mechanism (2) is plugged with a depth adjusting rod (3); The adjusting locking mechanism (2) comprises an adjusting hinge shaft (4), one end of the adjusting hinge shaft (4) is fixedly connected to a main locking ring (5), one end of the outer side of the main locking ring (5) is fixedly connected to an adjusting socket seat (6), one end of the side of the adjusting socket seat (6) is fixedly connected to an adjusting rod locking knob (7), an adjusting rod insertion hole (8) is provided inside the adjusting socket seat (6), a locking bolt (9) is movably inserted into a protrusion at one end of the main locking ring (5), a locking nut (10) is screwed onto one end of the locking bolt (9), a secondary locking ring (11) is fixedly connected to the other end of the adjusting hinge shaft (4), a locking screw hole (12) is provided inside a protrusion at one end of the secondary locking ring (11), and locking washers (13) are provided inside the main locking ring (5) and the secondary locking ring (11); A connecting arm (14) is fixedly connected below the depth adjustment rod (3), a roller shaft (15) is rotatably connected inside the connecting arm (14), and a fitting roller (16) is rotatably connected to one end of the outer side of the roller shaft (15).
2. A carbide drill bit capable of controlling drilling depth according to claim 1, characterized in that: The locking gasket (13) comprises a large fitting gasket (17), one end of which is fixedly connected to a small connecting gasket (18). Both the large fitting gasket (17) and the small connecting gasket (18) are made of elastic silicone rubber material and are open at one end.
3. A cemented carbide drill capable of controlling drilling depth according to claim 1, characterized in that: The outer surface of the depth adjustment rod (3) is provided with a depth scale bar (19), a drill head (20) is fixedly connected below the drill connecting rod (1), and the drill connecting rod (1) and the drill head (20) are both made of hard alloy material.
4. A cemented carbide drill capable of controlling drilling depth according to claim 1, characterized in that: The depth adjustment rod (3) passes through the adjustment rod insertion hole (8) and is movably arranged therein; the locking bolt (9) is threadedly connected to fit the locking screw hole (12); and the locking nut (10) is located on the outer side of one protruding end of the secondary locking ring (11) and is threadedly connected to the locking bolt (9).
5. A cemented carbide drill capable of controlling drilling depth according to claim 1, characterized in that: The locking washer (13) is arranged on the outside of the drill bit connecting rod (1) and between the inside of the main locking ring (5) and the auxiliary locking ring (11).
6. A cemented carbide drill capable of controlling drilling depth according to claim 1, characterized in that: The connecting arms (14) and the roller shafts (15) are each provided in two groups, and the laminating roller (16) is movably arranged between the two groups of connecting arms (14).