CN214557654U

CN214557654U - Drill bit connecting structure capable of being quickly disassembled and assembled

Info

Publication number: CN214557654U
Application number: CN202023272640.8U
Authority: CN
Inventors: 黄艳; 徐小伟
Original assignee: Changzhou Emge Precision Tool Manufacturing Co ltd
Current assignee: Changzhou Emge Precision Tool Manufacturing Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-02
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a machining device technical field specifically is a quick assembly disassembly's drill bit connection structure, including first sleeve and dismouting subassembly, the internal surface cover of first sleeve is equipped with the second sleeve, the dismouting subassembly includes head rod and second connecting rod, the outer skin weld of second connecting rod has first gear circle, the surface cover of head rod is equipped with first rubber sleeve, the below cover that the surface of head rod is close to first rubber sleeve is equipped with the second rubber sleeve, second connecting rod one end welding has the plug, the internal surface cover of second sleeve is equipped with the centre gripping subassembly, the centre gripping subassembly includes the fixed block, the top surface of fixed block is provided with the external screw thread, the bottom surface of fixed block is provided with the stopper, the bottom of centre gripping subassembly is provided with the drill bit. The utility model discloses make electric drill dismouting drill bit more put just, and have fixture and make electric drill during operation stability stronger.

Description

Drill bit connecting structure capable of being quickly disassembled and assembled

Technical Field

The utility model relates to a machining device technical field specifically is a quick assembly disassembly's drill bit connection structure.

Background

The electric drill is a conventional product in electric tools and is also an electric tool product with the largest demand, and the principle of the electric drill is that a motor rotor of an electromagnetic rotary type or electromagnetic reciprocating type small-capacity motor does magnetic field cutting work-doing operation, and an operating device is driven by a transmission mechanism to drive a gear to increase the power of a drill bit, so that the drill bit scrapes the surface of an object and better penetrates the object.

However, the drill bit of the existing electric drill is inconvenient to disassemble and assemble, the speed of replacing the drill bit is very influenced, and further the working efficiency is influenced, meanwhile, the clamping mechanism for fastening the drill bit is lacked inside the existing drill bit, the stability of the electric drill during working is poor, and therefore the drill bit connecting structure capable of being disassembled and assembled quickly needs to be designed urgently to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick assembly disassembly's drill bit connection structure to solve the inconvenient and electric drill during operation poor problem of drill bit of current electric drill change that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a drill bit connecting structure capable of being quickly disassembled and assembled comprises a first sleeve and a disassembling and assembling component, wherein a second sleeve is sleeved on the inner surface of the first sleeve, the disassembling and assembling component comprises a first connecting rod and a second connecting rod, a first gear ring is welded on the outer surface of the second connecting rod, a first rubber sleeve is sleeved on the outer surface of the first connecting rod, a second rubber sleeve is sleeved on the outer surface of the first connecting rod and close to the lower part of the first rubber sleeve, a plug is welded at one end of the second connecting rod, a clamping component is sleeved on the inner surface of the second sleeve and comprises a fixed block, external threads are arranged on the outer surface of the top end of the fixed block, a limiting block is arranged on the outer surface of the bottom end of the fixed block, a drill bit is arranged at the bottom end of the clamping component, a connecting column is arranged at the top end of the second sleeve, and a second gear ring is arranged at the bottom end of the first sleeve, the outer surface of the second sleeve is provided with a groove, and the inner surface of the first sleeve is provided with an internal thread.

Preferably, the first gear ring is matched with the second gear ring in shape, and the first gear ring is meshed with the second gear ring.

Preferably, the outer surface of the plug is sleeved with a protective sleeve, and the shape of the protective sleeve is matched with that of the inner surface of the groove.

Preferably, the fixed block is provided with three groups, and the contained angle of three groups of fixed blocks is.

Preferably, the external thread is matched with the internal thread in shape, and the fixing block is connected with the first sleeve in a screwing mode.

Preferably, the outer surface of the drill bit is provided with a clamping groove, and the shape of the clamping groove is matched with that of the outer surface of the limiting block.

Compared with the prior art, the beneficial effects of the utility model are that: this quick assembly disassembly's drill bit connection structure makes the electric drill dismouting drill bit more put just, and has fixture and make electric drill during operation stability stronger.

(1) The plug is inserted into the groove, and then the first gear ring is meshed with the second gear ring and the fixing block is connected with the first sleeve in a screwing mode, so that the drill bit can be quickly disassembled and assembled, and the effect of more conveniently disassembling and assembling the drill bit is achieved;

(2) through the centre gripping of three fixed blocks of group and the block between stopper and the drill bit, and then make the drill bit can not produce at the electric drill during operation and rock, and then reach the more strong effect of electric drill during operation stability.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the first sleeve of FIG. 1 according to the present invention;

fig. 3 is a schematic bottom view of the structure of the present invention.

In the figure: 1. a first sleeve; 2. a second sleeve; 3. disassembling and assembling the components; 31. a first connecting rod; 32. a second connecting rod; 33. a first gear ring; 34. a first rubber sleeve; 35. a second rubber sleeve; 36. plugging; 4. a clamping assembly; 41. a fixed block; 42. an external thread; 43. a limiting block; 5. a drill bit; 6. connecting columns; 7. a second gear ring; 8. a groove; 9. an internal thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: a drill bit connecting structure capable of being quickly disassembled and assembled comprises a first sleeve 1 and a disassembling and assembling component 3, wherein a second sleeve 2 is sleeved on the inner surface of the first sleeve 1, the disassembling and assembling component 3 comprises a first connecting rod 31 and a second connecting rod 32, a first gear ring 33 is welded on the outer surface of the second connecting rod 32, a first rubber sleeve 34 is sleeved on the outer surface of the first connecting rod 31, a second rubber sleeve 35 is sleeved below the outer surface of the first connecting rod 31, which is close to the first rubber sleeve 34, a plug 36 is welded at one end of the second connecting rod 32, a clamping component 4 is sleeved on the inner surface of the second sleeve 2, the clamping component 4 comprises a fixed block 41, external threads 42 are arranged on the outer surface of the top end of the fixed block 41, a limiting block 43 is arranged on the outer surface of the bottom end of the fixed block 41, a drill bit 5 is arranged at the bottom end of the clamping component 4, a connecting column 6 is arranged at the top end of the second sleeve 2, a second gear ring 7 is arranged at the bottom end of the first sleeve 1, recess 8 has been seted up to the surface of second sleeve 2, internal thread 9 has been seted up to the internal surface of first sleeve 1, accessible spliced pole 6 is connected to the output of electric drill with whole connection structure, insert recess 8 back at plug 36, through the meshing of first ring gear 33 with second ring gear 7, make and close soon between first sleeve 1 and the fixed block 41, because both contact surface that close soon is the wedge, can change the interval between the fixed block 41 closing soon the in-process, and then realize the centre gripping to drill bit 5, at handheld head rod 31 pivoted in-process simultaneously, first rubber sleeve 34 and second rubber sleeve 35 can increase handheld frictional force, make to rotate more conveniently.

Furthermore, the first gear ring 33 is matched with the second gear ring 7 in shape, the first gear ring 33 is meshed with the second gear ring 7, and the first sleeve 1 and the external thread 42 can be screwed together through the meshing of the first gear ring 33 and the second gear ring 7, so that the drill bit 5 is clamped by the fixing block 41.

Furthermore, the outer surface of the plug 36 is sleeved with a protective sleeve, the shape of the protective sleeve is matched with that of the inner surface of the groove 8, frequent plugging and unplugging between the plug 36 and the groove 8 cannot be avoided in the actual use process, and abrasion between devices after long-term use can be reduced through the protective sleeve.

Further, the fixed block 41 is provided with three groups, and the contained angle of three groups of fixed blocks 41 is 120, through the centre gripping of three groups of fixed blocks 41 for drill bit 5 is more stable and can not produce and rock about the during operation.

Further, the external threads 42 are matched with the internal threads 9 in shape, the fixing blocks 41 are connected with the first sleeve 1 in a screwing mode, and the three groups of fixing blocks 41 are spaced through the screwing connection between the fixing blocks 41 and the first sleeve 1 so as to be suitable for clamping drill bits 5 of different sizes.

Further, the clamping groove is formed in the outer surface of the drill bit 5, the clamping groove is matched with the outer surface of the limiting block 43 in shape, and the drill bit 5 is enabled to be stable and not to shake up and down during working through clamping of the clamping groove and the limiting block 43.

The working principle is as follows: during the use, be connected whole device and electric drill's output through spliced pole 6, select the drill bit 5 of suitable size and insert it between three group's fixed blocks 41, when stopper 43 and the draw-in groove on the drill bit 5 block mutually, insert plug 36 in the recess 8, handheld head rod 31 and rotation, first gear circle 33 and second gear circle 7 mesh and then drive the spiral of first sleeve 1 and fixed block 41 this moment, and then make three group's fixed blocks 41 further centre gripping drill bit 5, with this quick assembly disassembly who realizes drill bit 5, and drill bit 5 is more stable at the during operation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a quick assembly disassembly's drill bit connection structure, includes first sleeve (1) and dismouting subassembly (3), its characterized in that: the inner surface cover of first sleeve (1) is equipped with second sleeve (2), dismouting subassembly (3) include head rod (31) and second connecting rod (32), the outer surface welding of second connecting rod (32) has first gear circle (33), the outer surface cover of head rod (31) is equipped with first rubber sleeve (34), the below cover that the surface of head rod (31) is close to first rubber sleeve (34) is equipped with second rubber sleeve (35), the welding of second connecting rod (32) one end has plug (36), the inner surface cover of second sleeve (2) is equipped with centre gripping subassembly (4), centre gripping subassembly (4) include fixed block (41), the top surface of fixed block (41) is provided with external screw thread (42), the bottom surface of fixed block (41) is provided with stopper (43), the bottom of centre gripping subassembly (4) is provided with drill bit (5), the top end of the second sleeve (2) is provided with a connecting column (6), the bottom end of the first sleeve (1) is provided with a second gear ring (7), the outer surface of the second sleeve (2) is provided with a groove (8), and the inner surface of the first sleeve (1) is provided with an internal thread (9).

2. The drill bit connecting structure capable of being disassembled and assembled quickly according to claim 1, wherein: the first gear ring (33) is matched with the second gear ring (7) in shape, and the first gear ring (33) is meshed with the second gear ring (7).

3. The drill bit connecting structure capable of being disassembled and assembled quickly according to claim 1, wherein: the outer surface of the plug (36) is sleeved with a protective sleeve, and the shape of the protective sleeve is matched with that of the inner surface of the groove (8).

4. The drill bit connecting structure capable of being disassembled and assembled quickly according to claim 1, wherein: the fixed block (41) is provided with three groups, and the included angle of three groups of fixed blocks (41) is 120 degrees.

5. The drill bit connecting structure capable of being disassembled and assembled quickly according to claim 1, wherein: the external thread (42) is matched with the internal thread (9) in shape, and the fixing block (41) is connected with the first sleeve (1) in a screwing mode.

6. The drill bit connecting structure capable of being disassembled and assembled quickly according to claim 1, wherein: the outer surface of the drill bit (5) is provided with a clamping groove, and the shape of the clamping groove is matched with that of the outer surface of the limiting block (43).