CN218192744U - High-strength hollow drill bit - Google Patents

Abstract

The utility model discloses a high strength core bit, including drill bit main part, drill bit handle, enhancement connection structure and inside additional strengthening, the drill bit main part is core bit, the top department of drill bit main part is integral type fixed connection design with the bottom department of drill bit handle, the top department of drill bit main part seted up four screw hole A four screw hole B, four are seted up to the department all around of drill bit handle screw hole A is annular array design, four screw hole B's position respectively with four screw hole A's position phase-match, it installs in the top department of drill bit main part and is connected with the drill bit handle to strengthen connection structure, inside additional strengthening installs in the inside of drill bit main part. The utility model discloses at the during operation, bulk strength is higher, is difficult for appearing the condition that the dislocation warp or even fracture damage, the effectual life who prolongs the drill bit, and the practicality is higher.

Description

High-strength hollow drill bit

Technical Field

The utility model relates to a drill bit technical field specifically is a high strength hollow drill bit.

Background

The drill bit is the most widely used hole machining tool, mainly comprises a drill bit working part and a handle part, has the advantages of simple structure, high wear resistance, stable work and long service life, has various types of drill bits, can be divided into a twist drill, a flat drill, a deep hole drill, a central drill and the like, has different appearances, achieves different machining effect liquids, and can increase a reinforced connection structure to improve the connection strength and stability of the connection part of a drill bit main body and the drill bit handle in order to improve the strength of the drill bit, so that the drill bit is not easy to break and damage, and prolongs the service life.

Through the retrieval, the patent of the publication number of granting CN215880021U discloses a high strength drill bit, including the drill bit main part, the one end fixedly connected with butt joint axle of drill bit main part, and the inside spread groove of having seted up of butt joint axle, the surface of drill bit main part has cup jointed the anchor block, and one side of anchor block is connected with the protection piece to the internal connection of protection piece has the blotter, the outer fixed surface of anchor block is connected with the fixed block, and fixed block and draw-in groove interconnect to the draw-in groove is seted up in one side of locating piece. This high strength drill bit, the staff can cup joint the surface at the drill bit main part with reinforcement piece and protection piece to make the fixed block be connected with the draw-in groove block, rotatory bolt makes fixed block and locating piece stable connection after that, the reinforcement piece of being convenient for consolidates the support to the junction of drill bit main part and butt joint axle, and the lateral force that the protection piece received drill bit main part and butt joint axle junction disperses, is favorable to avoiding drill bit main part and butt joint axle to take place the phenomenon of rupture.

However, the reinforcing structure of the drill bit in the above patent has the following disadvantages:

the hollow drill bit is not suitable for a hollow drill bit, the diameter of a drill bit main body of the hollow drill bit is generally far larger than that of a drill bit handle, the connection part between the drill bit main body and the drill bit handle is also easy to deform, break and damage when the hollow drill bit works, and meanwhile, the drill bit main body of the hollow drill bit is designed to be hollow, so that the deformation and damage of the drill bit main body is easy to occur and normal hole opening use of the hollow drill bit is influenced.

Disclosure of Invention

An object of the utility model is to provide a high strength core bit, be not suitable for core bit to solve the additional strengthening of its drill bit in the above-mentioned patent, core bit's drill bit main part diameter generally will be far more than the diameter of drill bit handle, at core bit during operation, the condition of deformation fracture damage also appears equally easily in junction between its drill bit main part and the drill bit handle, and simultaneously, core bit's drill bit main part is because inside is hollow design, therefore deformation damage's condition easily appears equally in its drill bit main part self and influences its normal trompil application problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high strength core bit, includes drill bit main part, drill bit handle, strengthens connection structure and inside additional strengthening, the drill bit main part is core bit, the top department of drill bit main part is integral type fixed connection design with the bottom department of drill bit handle, four screw hole A have been seted up in the top department of drill bit main part four screw hole B have been seted up in the department all around of drill bit handle, four screw hole A is annular array design, four screw hole B's position respectively with four screw hole A's position phase-match, it installs in the top department of drill bit main part and is connected with the drill bit handle to strengthen connection structure, inside additional strengthening installs in the inside of drill bit main part.

Preferably, strengthen connection structure and include reinforced connection board, bolt A and bolt B, reinforced connection board is the L type, reinforced connection board, bolt A and bolt B all are provided with four, four reinforced connection board all laminates the top department that is fixed in the drill bit main part, and four bolt A's one end runs through four reinforced connection boards, four through threaded connection respectively bolt A with four screw hole A threaded connection respectively, four reinforced connection board's one side department respectively with the drill bit handle department laminating butt all around, four bolt B's one end runs through four reinforced connection boards through threaded connection respectively equally, and four bolt B respectively with four screw hole B threaded connection.

Preferably, four reinforcing connecting plates are made of the same metal material as the drill bit main body.

Preferably, the inside additional strengthening includes spring and boss, the spring is provided with a plurality ofly, and is a plurality of the equal fixed mounting of spring is in the inside top department of drill bit main part, the top department of boss has seted up the recess, the top recess department of boss and the bottom department fixed connection of a plurality of springs, just the department of boss is located the laminating all around with the inside of drill bit main part all around.

Preferably, a plurality of the springs are internally provided with telescopic connecting rods.

Preferably, the inner periphery of the drill bit body is subjected to smoothing treatment.

The utility model provides a high strength core bit possesses following beneficial effect:

the utility model discloses a be provided with the drill bit main part, the drill bit handle, strengthen connection structure and inside additional strengthening, make use this drill bit to carry out the trompil during operation, can be through four bolt A and four bolt B on the cooperation of four additional strengthening boards, the intensity of effectual improvement drill bit main part and drill bit handle junction, thereby the effectual condition of deformation fracture damage that appears between drill bit main part and the drill bit handle of having avoided, and simultaneously, at the drill bit main part during operation, its inside boss can effectual improvement drill bit main part self anti deformation intensity, further avoided the drill bit the deformation damage condition to appear, then effectual its life of having prolonged, and along with deepening of trompil, the spring compression, the boss shifts up, can not influence normal trompil processing, the practicality is higher.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the reinforcement block mounting front view exploded structure of the present invention;

FIG. 3 is a schematic top view of the drill bit body of the present invention;

fig. 4 is a front view of the drill handle of the present invention.

In the figure: 1. a drill bit body; 2. a drill bit shank; 3. a threaded hole B; 4. reinforcing the connecting plate; 5. a bolt A; 6. a bolt B; 7. a spring; 8. a reinforcing block; 9. a telescopic connecting rod; 10. and a threaded hole A.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a high strength core bit, includes drill bit main part 1, drill bit handle 2, strengthens connection structure and inside additional strengthening, drill bit main part 1 is core bit, the top department of drill bit main part 1 and the bottom department of drill bit handle 2 are integral type fixed connection design, four screw hole A10 have been seted up in the top department of drill bit main part 1 four screw hole B3, four are seted up in drill bit handle 2 department all around the screw hole A10 is annular array design, four the position of screw hole B3 respectively with the position phase-match of four screw hole A10, strengthen connection structure and install in drill bit main part 1's top department and be connected with drill bit handle 2, inside additional strengthening installs in the inside of drill bit main part 1.

The reinforced connecting structure comprises four reinforced connecting plates 4, bolts A5 and bolts B6, the reinforced connecting plates 4 are L-shaped, the four reinforced connecting plates 4, the bolts A5 and the bolts B6 are all provided, the four reinforced connecting plates 4 are fixedly attached to the top of the drill bit main body 1, one ends of the four bolts A5 respectively penetrate through the four reinforced connecting plates 4 through threaded connection, the four bolts A5 are respectively in threaded connection with the four threaded holes A10, one sides of the four reinforced connecting plates 4 are respectively attached to and abutted against the periphery of the drill bit handle 2, one ends of the four bolts B6 also respectively penetrate through the four reinforced connecting plates 4 through threaded connection, and the four bolts B6 are respectively in threaded connection with the four threaded holes B3, so that the four bolts A5 and the four bolts B6 are matched with the four reinforced connecting plates 4, the connecting strength and the stability between the drill bit main body 1 and the drill bit handle 2 are effectively improved, the four reinforced connecting plates 4 are respectively stressed when the drill bit main body 1 works, the problem that the drill bit main body 1 deforms or even breaks due to misplace and the service life of the drill bit is prolonged;

the four reinforcing connecting plates 4 are made of the same metal material as the drill bit main body 1, so that the reinforcing connecting plates 4 have high self strength and deformation resistance;

the internal reinforcing structure comprises a plurality of springs 7 and a plurality of reinforcing blocks 8, the springs 7 are arranged, the plurality of springs 7 are all fixedly mounted at the top end of the interior of the drill bit main body 1, a groove is formed in the top of the reinforcing block 8, the groove in the top of the reinforcing block 8 is fixedly connected with the bottom ends of the plurality of springs 7, and the periphery of the reinforcing block 8 is attached to the periphery of the interior of the drill bit main body 1, so that when the drill bit main body 1 works, the reinforcing block 8 can support the interior of the drill bit main body 1, the situation that the drill bit main body 1 deforms and is damaged when being perforated is effectively avoided, the springs 7 can be compressed along with the depth of the perforated hole, the reinforcing block 8 moves upwards, the normal perforating work of the drill bit main body 1 cannot be influenced, the service life of the drill bit main body 1 is further prolonged, and the practicability is high;

the telescopic connecting rods 9 are arranged inside the springs 7, so that the situation that the springs 7 are misplaced, deformed and damaged when compressed is effectively avoided;

the periphery of the inside of the drill bit body 1 is subjected to smoothing treatment, so that the sliding friction force between the reinforcing block 8 and the inside of the drill bit body 1 is reduced.

The working principle is as follows: when the drill bit main body 1 is in operation, can cooperate through four reinforcing connecting plate 4 and go up four bolt A5 and four bolt B6, effectual improvement drill bit main body 1 and drill bit handle 2 between joint strength and stability, thereby can share the atress through four reinforcing connecting plate 4, then the effectual drill bit main body 1 of having avoided appears the dislocation of deformation or even the fracture damage between during operation and drill bit handle 2 problem, the life of drill bit has tentatively been prolonged, and when the drill bit main body 1 is in operation, can also form inside support to drill bit main body 1 through boss 8, the effectual condition of deformation damage of self appearing when avoiding drill bit main body 1 trompil, and along with the deepening of trompil, spring 7 can compress, boss 8 shifts up, can not influence the normal trompil work of drill bit main body 1, the further life of drill bit main body 1 has been prolonged, the practicality is higher.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a high strength core bit, includes drill bit main part (1), drill bit handle (2), strengthens connection structure and inside additional strengthening, its characterized in that: the drill bit main part (1) is a hollow drill bit, the top of the drill bit main part (1) and the bottom of the drill bit handle (2) are in an integrated fixed connection design, four threaded holes A (10) are formed in the top of the drill bit main part (1), four threaded holes B (3) are formed in the periphery of the drill bit handle (2), the threaded holes A (10) are in an annular array design and four positions of the threaded holes B (3) are respectively matched with the positions of the four threaded holes A (10), the reinforced connection structure is installed at the top of the drill bit main part (1) and connected with the drill bit handle (2), and the internal reinforced structure is installed in the inside of the drill bit main part (1).

2. A high strength hollow drill bit as claimed in claim 1, wherein: strengthen connection structure including strengthening connecting plate (4), bolt A (5) and bolt B (6), strengthening connecting plate (4) are the L type, strengthening connecting plate (4), bolt A (5) and bolt B (6) all are provided with four, four strengthening connecting plate (4) all laminate and are fixed in the top department of drill bit main part (1), and four the one end of bolt A (5) runs through four strengthening connecting plate (4), four through threaded connection respectively bolt A (5) respectively with four screw hole A (10) threaded connection, four one side department of strengthening connecting plate (4) is respectively with the department laminating butt all around of drill bit handle (2), four the one end of bolt B (6) is equally through four strengthening connecting plate (4) through threaded connection respectively, and four bolt B (6) respectively with four screw hole B (3) threaded connection.

3. A high strength hollow drill bit as claimed in claim 2, wherein: the four reinforcing connecting plates (4) are made of the same metal material as the drill bit main body (1).

4. A high strength hollow drill bit as claimed in claim 1, wherein: the internal reinforcing structure comprises a spring (7) and a reinforcing block (8), wherein the spring (7) is provided with a plurality of springs (7) which are fixedly arranged at the top end of the drill bit main body (1), the top of the reinforcing block (8) is provided with a groove, the groove at the top of the reinforcing block (8) is fixedly connected with the bottom ends of the springs (7), and the periphery of the reinforcing block (8) is attached to the periphery of the inside of the drill bit main body (1).

5. A high strength hollow drill bit according to claim 4, wherein: telescopic connecting rods (9) are arranged in the springs (7).

6. A high strength hollow drill bit as claimed in claim 1, wherein: the periphery of the interior of the drill bit main body (1) is subjected to smoothing treatment.

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