Split type hard alloy glass drill

Abstract

The utility model discloses a split type hard alloy glass drill which comprises a drill rod, a drill bit and a lengthening rod, the drill rod comprises a hexagonal handle, a connecting rod is arranged at the front end of the hexagonal handle, a first inserting groove is formed in the front end of the connecting rod, a first inserting rod is arranged at one end of the lengthening rod, a second inserting groove is formed in the other end of the lengthening rod, and a second inserting rod is arranged at one end of the drill bit. The first inserting rod is inserted into the first inserting groove, the second inserting rod is inserted into the second inserting groove, through holes are formed in the first inserting rod and the second inserting rod, steel balls are movably arranged at the two ends of each through hole, springs are arranged in the middles of the through holes, clamping grooves are formed in the inner walls of the two sides of the first inserting groove and the inner walls of the two sides of the second inserting groove, and clamping grooves are formed in the inner walls of the two sides of the first inserting groove and the inner walls of the two sides of the second inserting groove. And the steel balls are clamped and embedded into the clamping grooves. According to the utility model, the drill bit can be independently replaced, the loss is reduced, the use cost is reduced, the drill rod can be lengthened through the lengthening rod, the applicability is greatly improved, and the drill rod, the drill bit and the lengthening rod are connected more simply and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of hard alloy drills, in particular to a split type hard alloy glass drill. Background Art

[0002] Carbide glass drill is a special drill bit, usually used for drilling hard materials such as glass. This type of drill bit is mainly made of carbide and has high wear resistance and impact resistance. During use, it relies on the impact load generated by the drilling pressure process and its own rotation to break the glass. Glass drills are usually composed of a drill rod and a drill cutter. The drill cutter is usually connected to the drill rod in three ways, namely sintering, electroplating and electroforming. However, the above three methods all fix the drill cutter and the drill rod into an integrated structure. The drill cutter part of the glass drill is the main part that bears impact force and wear, and the hardness of glass is very high, so the drill cutter part wears the fastest, while the drill rod part is often still intact after multiple uses. However, since most glass drills are integrated structures, they can only be replaced as a whole when replaced, which will cause certain waste and increase the cost of use.

[0003] For example, Chinese patent publication number CN218255982U discloses a multifunctional hexagonal handle glass drill, including a first drill body and a second drill body, the upper end of the first drill body is provided with a connecting screw groove, one side of the first drill body is provided with two first limiting screw holes near the upper end, the two first limiting screw holes are both connected to the connecting screw groove, one side of the inner wall of the connecting screw groove is provided with two limiting screw grooves, the lower end of the second drill body is fixedly connected with a connecting screw head, the connecting screw head is threadedly sleeved with the connecting screw groove, and the two sides of the connecting screw head are provided with second limiting screw holes, the internal thread of the first limiting screw hole is connected with a limiting screw, the limiting screw passes through the second limiting screw hole and is connected to the limiting screw groove. The multifunctional hexagonal handle glass drill proposed by the utility model has high structural strength and strong reliability, the drill bit is a split structure, the first drill body is replaceable, and it can reduce loss and reduce the cost of use.

[0004] The above-mentioned multifunctional hexagonal handle glass drill can solve the problem of excessive waste and high cost. However, the first drill body and the second drill body of the patent are connected by threads and fixed by limit screws. When replacing, additional tools are required, which makes disassembly and installation more cumbersome and inconvenient; and the attached Figure 3 It can be seen that the length of the rear end of the first drill body is relatively long, so a lot of material will still be wasted when it is replaced and scrapped, and when encountering some thicker objects, it is necessary to replace it with a longer glass drill for operation, resulting in low applicability. Utility Model Content

[0005] The utility model provides an easy-to-use electrical testing grounding ring to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A split carbide glass drill comprises a drill rod, a drill bit and an extension rod, the drill rod comprises a hexagonal handle, a connecting rod is provided at the front end of the hexagonal handle, a first plug-in slot is provided at the front end of the connecting rod, a first plug-in rod is provided at one end of the extension rod, a second plug-in slot is provided at the other end of the extension rod, a second plug-in rod is provided at one end of the drill bit, a cross drill cutter is provided at the other end of the drill bit, the first plug-in rod is plugged into the first plug-in slot, the second plug-in rod is plugged into the second plug-in slot, through holes are provided on the first plug-in rod and the second plug-in rod, steel balls are movably provided at both ends of the through holes, springs are provided in the middle of the through holes, card slots are provided on the inner walls of both sides of the first plug-in slot and the second plug-in slot, and the steel balls are embedded in the card slots.

[0008] Preferably, the slot is a semicircular groove structure.

[0009] Preferably, two ends of the spring are respectively abutted against steel balls at two ends of the through hole.

[0010] Preferably, the second plug-in rod can be plugged into the first plug-in slot and the second plug-in slot.

[0011] Preferably, the second plug-in rod, the second plug-in rod, the first plug-in slot, and the second plug-in slot are all hexagonal structures.

[0012] Beneficial Effects

[0013] The above one or more technical solutions in the split carbide glass drill provided by the embodiment of the utility model have at least one of the following technical effects:

[0014] The utility model adopts the above technical scheme and is provided with a multi-section split structure of a drill rod, a drill bit and an extension rod, so that when the drill bit is greatly worn out after long-term use, it is only necessary to remove the drill bit and replace it, which can not only reduce consumables and reduce the cost of use, but also through the extension rod, when encountering some thicker objects, it is not necessary to replace the glass drill, only the extension rod needs to be added to increase the length of the glass drill, so that the applicability is greatly improved, and the drill bit is connected and fixed to the drill rod and the extension rod by plugging, so that no additional tools are required during disassembly and installation, which reduces the cumbersomeness of operation and improves the replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the drill bit and the drill rod of the utility model;

[0019] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0020] 1. Drill rod; 2. Drill bit; 3. Extension rod; 4. Hexagonal handle; 5. Connecting rod; 6. First plug-in slot; 7. First plug-in rod; 8. Second plug-in slot; 9. Second plug-in rod; 10. Cross drill; 11. Through hole; 12. Steel ball; 13. Spring; 14. Slot. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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 invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figure 1-4 As shown, it is a structural schematic diagram of a split-type cemented carbide glass drill according to a preferred embodiment of the utility model;

[0024] In this embodiment, a drill rod 1, a drill bit 2, and an extension rod 3 are included. The drill rod 1 includes a hexagonal handle 4, a connecting rod 5 is provided at the front end of the hexagonal handle 4, and a first plug-in slot 6 is provided at the front end of the connecting rod 5. A first plug-in rod 7 is provided at one end of the extension rod 3, and a second plug-in slot 8 is provided at the other end of the extension rod 3. A second plug-in rod 9 is provided at one end of the drill bit 2, and a cross drill 10 is provided at the other end of the drill bit 2. The first plug-in rod 7 is plugged into the first plug-in slot 6 so that the extension rod 3 and the drill rod are connected. 1, the drill bit 2 is connected to the extension rod 3 by inserting the second plug-in rod 9 into the second plug-in slot 8, the length of the drill rod 1 can be extended by the extension rod 3, the first plug-in rod 7 and the second plug-in rod 9 are both provided with a through hole 11, both ends of the through hole 11 are movably provided with steel balls 12, the middle of the through hole 11 is provided with a spring 13, the inner walls of both sides of the first plug-in slot 6 and the second plug-in slot 8 are provided with a card slot 14, the steel ball 12 is card-embedded in the card slot 14.

[0025] In this embodiment, the slot 14 is a semicircular groove structure, which enables the slot 14 to be embedded with the steel ball 12 .

[0026] In this embodiment, the two ends of the spring 13 are respectively against the steel balls 12 at the two ends of the through hole 11. The spring 13 provides elastic force to the steel balls 12 at the two ends, and the spring 13 pushes the steel balls 12 into the clamping grooves 14 on both sides, thereby achieving the purpose of limiting and fixing, so that the first plug rod 7 will not fall out of the first plug slot 6, and the second plug rod 9 will not fall out of the second plug slot 8. When the drill bit 2 needs to be replaced, the drill bit 2 only needs to be pulled out with force, and the steel balls 12 are squeezed by the edge of the clamping groove 14 and retracted into the through hole 11 and fall out of the clamping groove 14, so that the drill bit 2 can be pulled out, and the extension rod 3 is the same. According to this method, not only can consumables and costs be reduced, but the replacement method is simple and fast.

[0027] In this embodiment, the second plug-in rod 9 can be plugged into the first plug-in slot 6 and the second plug-in slot 8. This structure enables the drill bit 2 to be connected to the extension rod 3 and the drill rod 1 respectively.

[0028] In this embodiment, the first plug-in rod 7, the second plug-in rod 9, the first plug-in slot 6, and the second plug-in slot 8 are all hexagonal structures, which is the same structure as the hexagonal wrench. This structure ensures that after the first plug-in rod 7 and the second plug-in rod 9 are inserted into the first plug-in slot 6 and the second plug-in slot 8, no rotation will occur between the first plug-in rod 7 and the first plug-in slot 8, and no rotation will occur between the second plug-in rod 9 and the second plug-in slot 8.

[0029] The utility model provides a split carbide glass drill, and its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0030] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0031] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A split carbide glass drill, comprising a drill rod (1), a drill bit (2), and an extension rod (3), characterized in that: The drill rod (1) comprises a hexagonal shank (4), a connecting rod (5) is provided at the front end of the hexagonal shank (4), a first plug-in slot (6) is provided at the front end of the connecting rod (5), a first plug-in rod (7) is provided at one end of the extension rod (3), a second plug-in slot (8) is provided at the other end of the extension rod (3), a second plug-in rod (9) is provided at one end of the drill bit (2), a cross drill bit (10) is provided at the other end of the drill bit (2), and the first plug-in rod (7) is plugged into the first plug-in slot. (6), the second plug-in rod (9) is plugged into the second plug-in slot (8), the first plug-in rod (7) and the second plug-in rod (9) are both provided with through holes (11), steel balls (12) are movably provided at both ends of the through holes (11), a spring (13) is provided in the middle of the through holes (11), and the inner walls of both sides of the first plug-in slot (6) and the second plug-in slot (8) are both provided with card slots (14), and the steel balls (12) are card-engaged in the card slots (14).

2. The split carbide glass drill according to claim 1, characterized in that: The clamping groove (14) is a semicircular groove structure.

3. The split carbide glass drill according to claim 1, characterized in that: The two ends of the spring (13) are respectively abutted against the steel balls (12) at the two ends of the through hole (11).

4. The split carbide glass drill according to claim 1, characterized in that: The second plug-in rod (9) can be plugged into the first plug-in slot (6) and the second plug-in slot (8).

5. The split carbide glass drill according to claim 1, characterized in that: The first plug-in rod (7), the second plug-in rod (9), the first plug-in slot (6), and the second plug-in slot (8) are all hexagonal structures.

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