CN219310116U

CN219310116U - Self-locking drill chuck

Info

Publication number: CN219310116U
Application number: CN202320095934.2U
Authority: CN
Inventors: 贾银喜
Original assignee: Shaanxi Shengyang Energy Engineering Co ltd
Current assignee: Shaanxi Shengyang Energy Engineering Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-07
Anticipated expiration: 2033-02-01

Abstract

The utility model relates to the technical field of drill bit installation, and provides a self-locking drill bit chuck, which comprises an installation sleeve; the top of the outer side of the mounting sleeve is fixedly provided with a fixing ring, and the bottom surface of the fixing ring is fixedly provided with a sleeving spring; when needing to install the drill bit, through upwards pulling the lift cover for the chuck can not be cup jointed in the bottom of lift cover, under the effect of spring elastic force, the locating piece stretches out in the outside of embedding case, make the reference column on the locating piece shrink into in the through hole, then insert the drill bit that needs to install in the installation cover, loosen the lift cover, under the effect of cup jointing spring elastic force, the lift cover cup joints on the chuck, the locating piece on the lift cover extrusion chuck, make the locating piece fully embedded in the embedding incasement, and the reference column runs through in the through hole, insert in drill bit locating hole all around, reach the effect of carrying out automatic positioning to the drill bit, need not to use the bolt to fix a position the drill bit, effectively prevent that the smooth silk from leading to the drill bit to take place not hard up or the condition that drops, increase the practicality.

Description

Self-locking drill chuck

Technical Field

The utility model relates to the technical field of drill bit installation, in particular to a self-locking drill bit chuck.

Background

The drill chuck is usually an oblique tooth chuck, the chuck comprises three oblique channels which are mutually 120 degrees, the axial directions of the three channels are intersected on the central axis of the chuck direction, threaded claws are arranged in the channels, the claws are in transmission connection with nuts which can rotate around the central axis of the chuck from outside, and the claws are enabled to move towards the central axis of the chuck or in the opposite direction by rotating the nuts, so that the effect of clamping or loosening a drill bit is achieved. The chuck is complex in structure and difficult to maintain, the use environment of the drilling machine is quite bad, the clamping jaws are frequently blocked by entering foreign matters, or the drilling bit cannot be clamped due to slipping between the clamping jaws and the nuts, so that the construction progress is slow, and the self-locking type drill chuck is designed to solve the problems.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a self-locking drill chuck.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a self-locking drill chuck comprises a mounting sleeve, a fixed ring, a sleeve spring, a lifting sleeve, a chuck and a positioning block;

the fixed ring that is provided with in outside top of installation cover, fixed bottom fixed surface of fixed ring is provided with cup joints the spring, the fixed lift cover that is provided with in bottom of cup joints the spring, the bottom of installation cover runs through and is provided with the chuck, the embedding is provided with the locating piece around the chuck.

Preferably, the lifting sleeve is funnel-shaped with a small upper diameter and a large lower diameter, the top diameter of the lifting sleeve is equal to the diameter of the mounting sleeve, and the lower end diameter of the lifting sleeve is equal to the diameter of the chuck.

Preferably, when the sleeve spring is in a natural extension state, the bottom of the lifting sleeve is sleeved on the chuck.

Preferably, the chuck comprises an embedded box and a through hole, the embedded box is embedded in the left, right, front and back directions of the chuck, and the through hole is formed in the center of the embedded box in a penetrating mode.

Preferably, the positioning block comprises a spring and a positioning column, the springs are fixedly arranged on the upper side and the lower side of the side face of the positioning block, and the positioning column is fixedly arranged in the center of the side face of the positioning block.

Preferably, the positioning block is in a trapezoid shape with a narrow upper width and a wide lower width.

Preferably, the spring is fixedly arranged on the inner side surface of the embedded box, and the positioning column penetrates through the through hole.

Preferably, when the spring is in a natural extension state, the positioning block extends out of the embedded box.

The beneficial effects are that:

1. when needing to install the drill bit, through upwards pulling the lift cover for the chuck can not be cup jointed in the bottom of lift cover, under the effect of spring elastic force, the locating piece stretches out in the outside of embedding case, make the reference column on the locating piece shrink into in the through hole, then insert the drill bit that needs to install in the installation cover, loosen the lift cover, under the effect of cup jointing spring elastic force, the lift cover cup joints on the chuck, the locating piece on the lift cover extrusion chuck, make the locating piece fully embedded in the embedding incasement, and the reference column runs through in the through hole, insert in drill bit locating hole all around, reach the effect of carrying out automatic positioning to the drill bit, need not to use the bolt to fix a position the drill bit, effectively prevent that the smooth silk from leading to the drill bit to take place not hard up or the condition that drops, increase the practicality.

2. And when the drill bit needs to be disassembled, the lifting sleeve is pulled upwards to be separated from the chuck, the positioning block stretches out of the embedded box under the action of spring force, and meanwhile, the positioning block drives the positioning column to move outwards and retract into the through hole, so that the positioning column is separated from the positioning hole on the drill bit, and the drill bit is conveniently taken out from the chuck and the mounting sleeve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the whole structure of the present utility model;

FIG. 3 is a schematic perspective view of a partial structure of the present utility model;

FIG. 4 is a schematic cross-sectional view of a top view of the chuck of the present utility model;

fig. 5 is a schematic diagram of the overall structure of the positioning block according to the present utility model.

Legend description: 1. a mounting sleeve; 2. a fixing ring; 3. sleeving a spring; 4. a lifting sleeve; 5. a chuck; 501. an embedded box; 502. a through hole; 6. a positioning block; 601. a spring; 602. and positioning columns.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

Examples:

referring to fig. 1-5, a self-locking drill chuck comprises a mounting sleeve 1, a fixed ring 2, a sleeve spring 3, a lifting sleeve 4, a chuck 5 and a positioning block 6;

the fixed ring 2 that is provided with in the outside top of installation cover 1, the bottom fixed surface of fixed ring 2 is provided with cup joints spring 3, cup joints the fixed lift cover 4 that is provided with in bottom of spring 3, and the bottom of installation cover 1 runs through and is provided with chuck 5, and the embedding is provided with locating piece 6 around chuck 5.

Wherein, lifting sleeve 4 is the funnel form that the diameter of top is little below diameter is big, and lifting sleeve 4's top diameter equals the diameter of installation cover 1, and lifting sleeve 4's lower extreme diameter equals the diameter of chuck 5, makes things convenient for lifting sleeve 4 to go up and down.

When the sleeve spring 3 is in a natural extension state, the bottom of the lifting sleeve 4 is sleeved on the chuck 5, so that the lifting sleeve 4 can conveniently extrude the positioning block 6 positioned on the chuck 5.

The chuck 5 includes an insert box 501 and a through hole 502, the insert box 501 is inserted in the chuck 5 in four directions, and the through hole 502 is formed in the center of the insert box 501.

The positioning block 6 comprises a spring 601 and a positioning column 602, the spring 601 is fixedly arranged above and below the side face of the positioning block 6, and the positioning column 602 is fixedly arranged in the center of the side face of the positioning block 6.

Wherein, the positioning block 6 is in a trapezoid shape with narrow upper width and wide lower width, so that the lifting sleeve can conveniently squeeze the positioning block 6.

The spring 601 is fixedly disposed on the inner surface of the embedded case 501, and the positioning column 602 penetrates through the through hole 502, so that the positioning column 602 is conveniently inserted into the positioning holes around the drill bit to achieve the effect of positioning the drill bit.

When the spring 601 is in a natural extension state, the positioning block 6 extends out of the embedded box 501, so that the positioning column 602 on the positioning block 6 is convenient to separate from the positioning holes around the drill bit, and the drill bit is convenient to take out.

When a drill bit needs to be installed, the bottom of the lifting sleeve 4 is pulled upwards so that the chuck 5 cannot be sleeved at the bottom of the lifting sleeve 4, the positioning block 6 stretches out of the embedded box 501 under the action of the elastic force of the spring 601, so that the positioning column 602 on the positioning block 6 is retracted into the through hole 502, then the drill bit needing to be installed is inserted into the installation sleeve 1, the lifting sleeve 4 is loosened, the lifting sleeve 4 is sleeved on the chuck 5 under the action of the elastic force of the sleeved spring 3, the lifting sleeve 4 extrudes the positioning block 6 on the chuck 5, so that the positioning block 6 is completely embedded into the embedded box 501, the positioning column 602 penetrates through the through hole 502 and is inserted into the positioning holes around the drill bit, the effect of automatically positioning the drill bit is achieved, the drill bit is not required to be positioned by using a bolt, the situation that the drill bit is loosened or falls off due to a sliding wire is effectively prevented, and the practicability is improved;

and when the drill bit needs to be disassembled, through pulling the lifting sleeve 4 upwards, the lifting sleeve 4 is separated from the chuck 5, under the action of the elastic force of the spring 601, the positioning block 6 stretches out of the embedded box 501, and meanwhile, the positioning block 6 drives the positioning column 602 to move outwards and retract into the through hole 502, so that the positioning column 602 is separated from the positioning hole on the drill bit, and the drill bit is conveniently taken out from the chuck 5 and the installation sleeve 1.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. A self-locking drill chuck, characterized in that: comprises a mounting sleeve (1), a fixing ring (2), a sleeving spring (3), a lifting sleeve (4), a chuck (5) and a positioning block (6);

the fixed ring (2) that is provided with in outside top of installation cover (1), the bottom fixed surface of fixed ring (2) is provided with cup joints spring (3), the bottom of cup joints spring (3) is fixed to be provided with lift cover (4), the bottom of installation cover (1) runs through and is provided with chuck (5), the embedding all around of chuck (5) is provided with locating piece (6).

2. The self-locking drill chuck of claim 1, wherein: the lifting sleeve (4) is funnel-shaped, the diameter of the upper part of the lifting sleeve is small, the diameter of the lower part of the lifting sleeve is large, the diameter of the top of the lifting sleeve (4) is equal to that of the mounting sleeve (1), and the diameter of the lower end of the lifting sleeve (4) is equal to that of the chuck (5).

3. The self-locking drill chuck of claim 1, wherein: when the sleeve connection spring (3) is in a natural extension state, the bottom of the lifting sleeve (4) is sleeved on the chuck (5).

4. The self-locking drill chuck of claim 1, wherein: the chuck (5) comprises an embedded box (501) and a through hole (502), the embedded box (501) is embedded in the left, right, front and back directions of the chuck (5), and the through hole (502) is formed in the center of the embedded box (501) in a penetrating mode.

5. The self-locking drill chuck of claim 4, wherein: the positioning block (6) comprises a spring (601) and a positioning column (602), the spring (601) is fixedly arranged on the upper side and the lower side of the side face of the positioning block (6), and the positioning column (602) is fixedly arranged in the center of the side face of the positioning block (6).

6. The self-locking drill chuck of claim 5, wherein: the positioning block (6) is in a trapezoid shape with a narrow upper width and a wide lower width.

7. The self-locking drill chuck of claim 5, wherein: the spring (601) is fixedly arranged on the inner side surface of the embedded box (501), and the positioning column (602) penetrates through the through hole (502).

8. The self-locking drill chuck of claim 5, wherein: when the spring (601) is in a natural extension state, the positioning block (6) extends out of the embedded box (501).