CN218452946U

CN218452946U - Assembled electric hammer drill bit

Info

Publication number: CN218452946U
Application number: CN202221101244.5U
Authority: CN
Inventors: 林昌财; 周东
Original assignee: Yueqing Furong Tool No1 Factory
Current assignee: Yueqing Furong Tool No1 Factory
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2023-02-07
Anticipated expiration: 2032-05-10

Abstract

The application discloses assembled electric hammer bores drill bit relates to electric hammer and bores drill bit technical field, including the drill bit stalk portion, the fixed slot has been seted up to the one end of drill bit stalk portion, and the one end activity of drill bit stalk portion is pegged graft and is had the dead lever, and the one end fixedly connected with drill bit body of dead lever, the thread groove has been seted up to the inner wall of fixed slot, and the inner wall swing joint of drill bit stalk portion has the threaded rod, and the double flute has been seted up to the outer wall of drill bit body, and the fixture block, the one end fixedly connected with fixed head of fixture block have been cup jointed in the one end activity of drill bit body. This application is connected through dead lever and fixed slot block, and first magnetite and second magnetite magnetism are inhaled and are connected, and the block of fixture block and draw-in groove is connected, and first magnet is inhaled with second magnet magnetism and is connected, is convenient for assemble drill bit stalk portion, drill bit body and fixed head, need not to wholly change the drill bit, is convenient for dismantle the change with the comparatively serious part of wearing and tearing, is convenient for reduce extravagant condition, does benefit to the loss and the manufacturing cost of reducing means, has improved the flexibility of device.

Description

Assembled electric hammer drill bit

Technical Field

The utility model belongs to the technical field of electric hammer drill bit technique and specifically relates to an assembled electric hammer drill bit is related to.

Background

The electric hammer drill is a hand-held electric tool integrating two functions of a percussion drill and an electric hammer. The percussion drill mainly uses rotary cutting, and an impact mechanism with impact force drives a percussion bit, and the percussion drill also has a reciprocating hammering motion in a direction perpendicular to the rotary surface of the drill bit while driving the percussion bit to do rotary motion.

The percussion drill bit is a device for clamping on an impact electric drill and is used for drilling concrete foundation, wall, brick wall and granite, so that fasteners such as expansion bolts and plastic expansion pipes can be installed in the holes. Cemented carbide percussion drill bits can be divided into: straight shank percussive drills, taper shank (inclined shank) percussive drills and hexagonal shank percussive drills.

At realizing this application in-process, the inventor discovers that there is following problem at least in this technique, and current general electric hammer bores the drill bit and is whole integral structure as an organic whole, because drill bit head wearing and tearing are comparatively serious, in case damage need change whole drill bit, be not convenient for change the holistic partly of drill bit, cause the waste easily, and be unfavorable for reduction in production cost, reduced the practicality of device.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the whole part of the drill bit is inconvenient to replace, the assembled electric hammer drill bit is provided.

The application provides an assembled electric hammer drill bit adopts following technical scheme:

an assembled electric hammer drill bit comprises a drill bit handle part, wherein a fixing groove is formed in one end of the drill bit handle part, a fixing rod is movably inserted into one end of the drill bit handle part, a drill bit body is fixedly connected to one end of the fixing rod, a thread groove is formed in the inner wall, located in the fixing groove, of the drill bit handle part, and a threaded rod is movably connected to the inner wall of the drill bit handle part;

the drill bit comprises a drill bit body and is characterized in that double grooves are formed in the outer wall of the drill bit body, a clamping block is movably sleeved at one end of the drill bit body, a fixing head is fixedly connected to one end of the clamping block, and a head is fixedly connected to the outer wall of the fixing head.

Based on above-mentioned technical scheme, block through dead lever and fixed slot is connected, is convenient for make up drill bit stalk portion and drill bit body and assembles the use, and the rethread fixture block carries out aggregate erection with drill bit body and head, conveniently dismantles and installs, is convenient for dismantle the change alone to the part of damage, does benefit to the condition of reducing the waste to reduce loss and cost.

Optionally, the outer wall fixedly connected with of dead lever is solid fixed ring, gu fixed ring's outer wall fixedly connected with protection casing, gu fixed ring all is provided with the packing ring with the contact position of drill bit stalk portion and drill bit body.

Based on above-mentioned technical scheme, be convenient for play certain guard action through the protection casing, reduce the piece and enter into drill bit stalk portion department and cause the condition of jam.

Optionally, the drill bit stalk portion is located the inner wall fixed mounting of fixed slot has first magnetite, the one end of dead lever is close to one side fixed mounting of drill bit stalk portion has the second magnetite, first magnetite and second magnetite are the opposite magnetic pole each other, the shape size of dead lever and the shape size of fixed slot all match each other, first magnetite and second magnetite are hugged closely.

Based on above-mentioned technical scheme, be connected through dead lever and fixed slot block, the magnetism of first magnetite and second magnetite simultaneously is inhaled and is connected, is convenient for carry out quick positioning assembly, conveniently carries out the aggregate erection and uses, is convenient for dismantle and install the drill bit body.

Optionally, the outer wall of dead lever has seted up the constant head tank, the outer wall of drill bit stalk portion has seted up logical groove, the one end of threaded rod runs through the inner wall of logical groove and the inner wall of constant head tank and extends to the inner wall of thread groove, threaded rod and thread groove threaded connection, the gasket has been cup jointed in the outer wall activity of threaded rod.

Based on above-mentioned technical scheme, through the threaded connection of threaded rod and thread groove, be convenient for fix and consolidate the hookup location of dead lever and drill bit stalk portion, reduce the condition that takes place not hard up in the use, be convenient for improve the stability that the device is connected.

Optionally, the outer wall of the drill bit handle is provided with a groove, the drill bit handle is located on the inner wall of the groove and is fixedly connected with a wear-resistant layer, and the wear-resistant layer is made of high-speed steel.

Based on above-mentioned technical scheme, be convenient for strengthen the wearability of drill bit stalk portion outer wall, do benefit to increase of service life.

Optionally, the outer wall fixedly connected with lug of drill bit body, the outer wall fixedly connected with cutting part of lug, the cross section of cutting part is the triangle-shaped structure, the cutting part adopts diamond cutting part.

Based on above-mentioned technical scheme, be convenient for strengthen the hardness and the wearability of cutting part, do benefit to increase of service life, convenient to use.

Optionally, a clamping groove is formed in one end of the drill bit body, the drill bit body is located on a first magnet fixedly connected to the inner wall of the clamping groove, the shape and size of the clamping block are matched with those of the clamping groove, a second magnet is fixedly connected to the outer wall of the clamping block, and the first magnet and the second magnet are opposite in magnetic pole.

Based on above-mentioned technical scheme, the block through fixture block and draw-in groove is connected, and first magnet is inhaled with second magnet magnetism simultaneously and is connected, is convenient for dismantle and install drill bit body and fixed head, conveniently changes the use to part, has improved the flexibility of device, and is convenient for fast assembly and use.

Optionally, a sealing ring is movably sleeved at a contact position of the fixture block and the drill bit body, and the head is a diamond head.

Based on above-mentioned technical scheme, be convenient for strengthen the hardness of head, the wearability of reinforcing device does benefit to increase of service life and stablizes the drilling and use, has strengthened the practicality of device.

In summary, the present application includes at least one of the following advantages:

1. this application is connected with the fixed slot block through the dead lever, the magnetism of first magnetite and second magnetite is inhaled simultaneously and is connected, be convenient for assemble drill bit stalk portion and drill bit body, the block of rethread fixture block and draw-in groove is connected, first magnet is inhaled with second magnet magnetism simultaneously and is connected, be convenient for dismantle and install drill bit body and fixed head, need not to wholly change the drill bit, dismantle the change with comparatively serious part of wearing and tearing, be convenient for reduce the extravagant condition, do benefit to the loss and the manufacturing cost of reducing device, the flexibility of device has been improved.

2. This application uses through mutually supporting of the solid fixed ring that sets up and protection casing, and the guard action of the reinforcing means of being convenient for, the piece that produces when being convenient for reduce drilling enters into drill bit stalk portion department to cause the circumstances such as jam to influence the use.

3. This application is used through mutually supporting of wearing layer, cutting part and the head that sets up, and the wearability of the reinforcing device of being convenient for improves the outside hardness of device, does benefit to extension fixture's life, has strengthened the practicality of device.

Drawings

FIG. 1 is a schematic cross-sectional structural view of the present application as a whole;

FIG. 2 is a schematic front view of the present application as a whole;

FIG. 3 is a schematic side sectional view of a shank of a drill of the present application.

Description of reference numerals:

1. a bit shank; 2. a fixing groove; 3. a fixing rod; 301. a fixing ring; 302. a protective cover; 4. a drill bit body; 5. a first magnet; 6. a second magnet; 7. a thread groove; 8. positioning a groove; 9. a through groove; 10. a threaded rod; 11. a gasket; 12. a groove; 13. a wear layer; 14. double grooves; 15. a bump; 16. a blade part; 17. a card slot; 18. a clamping block; 19. a first magnet; 20. a second magnet; 21. a fixed head; 22. a seal ring; 23. a head portion.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to the attached drawings of the specification, fig. 1-3, the application provides an assembled electric hammer drill bit, which comprises a bit shank 1, wherein one end of the bit shank 1 is fixedly connected with an electric hammer drill, a groove 12 is formed in the outer wall of the bit shank 1, a wear-resistant layer 13 is fixedly connected to the inner wall of the groove 12 of the bit shank 1, and the wear-resistant layer 13 is made of high-speed steel, so that the wear resistance of the outer wall of the bit shank 1 is enhanced, and the service life is prolonged. Fixed slot 2 has been seted up to the one end of drill bit stalk portion 1, the one end activity of drill bit stalk portion 1 is pegged graft and is had dead lever 3, fixed slot 2 supplies dead lever 3 to alternate, dead lever 3 is the cuboid structure, the solid fixed ring 301 of outer wall fixedly connected with of dead lever 3, the outer wall fixedly connected with protection casing 302 of solid fixed ring 301, protection casing 302 all with the tip looks butt of drill bit stalk portion 1 with solid fixed ring 301, the diameter of protection casing 302 presents the trend of increasing by being close to 3 one side of dead lever, gu fixed ring 301 is located the contact position of drill bit stalk portion 1 and drill bit body 4 all is provided with the packing ring, be convenient for play certain guard action through protection casing 302, it enters into drill bit stalk portion 1 department and causes the condition of jam to reduce the piece.

Please refer to fig. 1 and 3 of the attached drawings of the specification, one end of the fixing rod 3 far away from the drill bit shank 1 is fixedly connected with a drill bit body 4, the inner wall of the drill bit shank 1 located at the fixing groove 2 is fixedly provided with a first magnet 5, one side of one end of the fixing rod 3 close to the drill bit shank 1 is fixedly provided with a second magnet 6, the first magnet 5 and the second magnet 6 are opposite magnetic poles, the shape and size of the fixing rod 3 are matched with those of the fixing groove 2, the first magnet 5 and the second magnet 6 are tightly attached to each other, the fixing rod 3 is connected with the fixing groove 2 in a clamping manner, and meanwhile, the first magnet 5 and the second magnet 6 are magnetically attracted to be connected, so that the rapid positioning and assembling are convenient, the assembling and the mounting are convenient, and the disassembly and the installation of the drill bit body 4 are convenient.

Please refer to the attached drawing fig. 3 of the specification, the inner wall of the drill handle portion 1 located in the fixing groove 2 is provided with a thread groove 7, the inner wall of the drill handle portion 1 is movably connected with a threaded rod 10, the extending direction of the threaded rod 10 is perpendicular to the extending direction of the drill handle portion 1, the outer wall of the fixing rod 3 is provided with a positioning groove 8, the outer wall of the drill handle portion 1 is provided with a through groove 9, one end of the threaded rod 10 penetrates through the inner wall of the through groove 9 and the inner wall of the positioning groove 8 and extends to the inner wall of the thread groove 7, the threaded rod 10 is in threaded connection with the thread groove 7, a gasket 11 is movably sleeved on the outer wall of the threaded rod 10, and through the threaded connection between the threaded rod 10 and the thread groove 7, the connection position of the fixing rod 3 and the drill handle portion 1 is conveniently fixed and reinforced, the condition of looseness in the use process is reduced, and the connection stability of the device is improved.

Referring to fig. 1 and 2 of the drawings of the specification, a double groove 14 is formed in the outer wall of the drill bit body 4, a bump 15 is fixedly connected to the outer wall of the drill bit body 4, the double groove 14 and the bump 15 are arranged alternately, a blade portion 16 is fixedly connected to the outer wall of the bump 15, the cross section of the blade portion 16 is of a triangular structure, and the blade portion 16 is a diamond blade portion, so that the hardness and the wear resistance of the blade portion 16 are enhanced, the service life is prolonged, and the use is facilitated.

Please refer to fig. 1 and 2 of the attached drawings of the specification, a fixture block 18 is movably sleeved at one end of a drill bit body 4, a fixing head 21 is fixedly connected to one end of the fixture block 18, a clamping groove 17 is formed at one end of the drill bit body 4, the drill bit body 4 is located on an inner wall of the clamping groove 17 and fixedly connected with a first magnet 19, the shape and size of the fixture block 18 are matched with those of the clamping groove 17, a second magnet 20 is fixedly connected to an outer wall of the fixture block 18, the first magnet 19 and the second magnet 20 are opposite magnetic poles, the fixture block 18 is connected with the clamping groove 17 in a clamping manner, and meanwhile, the first magnet 19 is magnetically attracted to the second magnet 20, so that the drill bit body 4 and the fixing head 21 can be conveniently detached and installed, partial replacement and use are convenient, flexibility of the device is improved, and rapid assembly and use are convenient.

Referring to the attached drawings of fig. 1 and 2 of the specification, the outer wall of the fixed head 21 is fixedly connected with a head 23, the contact position of the fixture block 18 and the drill bit body 4 is movably sleeved with a sealing ring 22, and the head 23 is a diamond head, so that the hardness of the head 23 is enhanced, the wear resistance of the device is enhanced, the service life is prolonged, stable drilling is facilitated, and the practicability of the device is enhanced.

The clamping connection through the fixing rod 3 and the fixing groove 2 facilitates the combination and assembly of the drill handle part 1 and the drill body 4, the combined installation of the drill body 4 and the head part 23 is achieved through the fixture block 18, the disassembly and the assembly are convenient, the damaged part is convenient to disassemble and replace independently, the waste condition is reduced, and therefore the loss and the cost are reduced.

The working principle is as follows:

at first carry out the block with drill bit body 4 through dead lever 3 and fixed slot 2 and be connected fixedly, the magnetism of first magnetite 5 and second magnetite 6 is inhaled and is connected simultaneously, be convenient for assemble and fix a position drill bit body 4 and drill bit stalk portion 1, rethread threaded rod 10 passes logical groove 9 and constant head tank 8 respectively and carries out threaded connection with thread groove 7 and fix, be convenient for consolidate dead lever 3 and drill bit stalk portion 1, reduce the condition that takes place not hard up in the use, be convenient for improve the stability that the device is connected, simultaneously through the protection casing 302 between drill bit body 4 and the drill bit stalk portion 1, be convenient for play certain guard action, it enters into the condition that drill bit stalk portion 1 department caused the jam to reduce the piece.

Carry out the block with fixed head 21 through fixture block 18 and draw-in groove 17 and connect fixedly after that, first magnet 19 carries out magnetism with second magnet 20 simultaneously and is inhaled to be connected fixedly, and the holistic part of drill bit of being convenient for is changed the use, has improved the flexibility of device, and is convenient for fast assembly and use, and has strengthened the hardness and the wearability of head 23 and cutting part 16, does benefit to increase of service life and stablizes the drilling use, has strengthened the practicality of device.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An assembled electric hammer drill bit, comprising a bit shank (1), characterized in that: a fixing groove (2) is formed in one end of the drill bit handle portion (1), a fixing rod (3) is movably inserted into one end of the drill bit handle portion (1), a drill bit body (4) is fixedly connected to one end of the fixing rod (3), a threaded groove (7) is formed in the inner wall, located in the fixing groove (2), of the drill bit handle portion (1), and a threaded rod (10) is movably connected to the inner wall of the drill bit handle portion (1);

the drill bit comprises a drill bit body (4), wherein the outer wall of the drill bit body (4) is provided with a double groove (14), one end of the drill bit body (4) is movably sleeved with a clamping block (18), one end of the clamping block (18) is fixedly connected with a fixed head (21), and the outer wall of the fixed head (21) is fixedly connected with a head (23).

2. The fabricated electric hammer drill bit of claim 1, wherein: the outer wall fixedly connected with of dead lever (3) is solid fixed ring (301), the outer wall fixedly connected with protection casing (302) of solid fixed ring (301), gu fixed ring (301) all is provided with the packing ring in the contact position that is located drill bit stalk portion (1) and drill bit body (4).

3. The fabricated electric hammer drill bit of claim 1, wherein: drill bit stalk portion (1) is located the inner wall fixed mounting of fixed slot (2) has first magnetite (5), the one end of dead lever (3) is close to one side fixed mounting of drill bit stalk portion (1) has second magnetite (6), first magnetite (5) and second magnetite (6) are the opposite magnetic pole each other, the shape size of dead lever (3) all matches each other with the shape size of fixed slot (2), first magnetite (5) and second magnetite (6) are hugged closely.

4. The fabricated electric hammer drill bit of claim 1, wherein: constant head tank (8) have been seted up to the outer wall of dead lever (3), logical groove (9) have been seted up to the outer wall of drill bit stalk portion (1), the one end of threaded rod (10) runs through the inner wall that leads to groove (9) and the inner wall of constant head tank (8) and extends to the inner wall of thread groove (7), threaded rod (10) and thread groove (7) threaded connection, gasket (11) have been cup jointed in the outer wall activity of threaded rod (10).

5. The fabricated electric hammer drill bit of claim 1, wherein: the outer wall of the drill bit handle part (1) is provided with a groove (12), the drill bit handle part (1) is located on the inner wall of the groove (12) and is fixedly connected with a wear-resistant layer (13), and the wear-resistant layer (13) is made of high-speed steel.

6. The fabricated electric hammer drill bit of claim 1, wherein: the drill bit is characterized in that the outer wall of the drill bit body (4) is fixedly connected with a convex block (15), the outer wall of the convex block (15) is fixedly connected with a cutting part (16), the cross section of the cutting part (16) is of a triangular structure, and the cutting part (16) adopts a diamond cutting part.

7. The fabricated electric hammer drill bit of claim 1, wherein: the drill bit comprises a drill bit body (4), and is characterized in that a clamping groove (17) is formed in one end of the drill bit body (4), the drill bit body (4) is located on the inner wall of the clamping groove (17) and is fixedly connected with a first magnet (19), the shape and the size of a clamping block (18) are matched with those of the clamping groove (17), a second magnet (20) is fixedly connected to the outer wall of the clamping block (18), and the first magnet (19) and the second magnet (20) are opposite in magnetic pole.

8. The fabricated electric hammer drill bit of claim 1, wherein: the contact position of the fixture block (18) and the drill bit body (4) is movably sleeved with a sealing ring (22), and the head (23) is a diamond head.