CN211333606U

CN211333606U - Inserted sheet hole saw

Info

Publication number: CN211333606U
Application number: CN201922039088.9U
Authority: CN
Inventors: 孙羊洋
Original assignee: Hangzhou Yifeng Hardware Tools Co ltd
Current assignee: Hangzhou Yifeng Hardware Tools Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-08-25
Anticipated expiration: 2029-11-23

Abstract

The utility model discloses an inserted sheet hole saw, including drilling rod and saw bit, the top fixed mounting of drilling rod has the baffle, the upper portion cover that sets up the groove is equipped with fixed fixture block, the upper end threaded connection of drilling rod has spacing bolt, spacing bolt is connected with fixed fixture block through the reed and drives fixed fixture block through the reed and reciprocates, the middle part cover of drilling rod is equipped with the saw bit, and the top middle part of saw bit is provided with the through-hole, the bilateral symmetry of through-hole is provided with two sets of spacing holes, and fixed fixture block one end is protruding to be extended to spacing hole and through spacing hole at the fixed saw bit of vertical position, and the middle part both sides of drilling rod all set up and set up the groove, and two sets of movable blocks that carry out the. The utility model discloses a be provided with spacing bolt, reed, fixed fixture block, movable block, set up groove, saw bit and spacing hole, improved staff's work efficiency.

Description

Inserted sheet hole saw

Technical Field

The utility model relates to a hole saw technical field specifically is an inserted sheet hole saw.

Background

The hole saw is a tool for processing holes in a plate, and the existing insert hole saw for processing the wooden products can basically meet daily use requirements, but has some defects to be improved.

The existing inserting piece type hole saw mostly adopts a bolt fixing connection mode, the whole saw blade needs to be taken down from a driving device when the saw blade is replaced or the saw blade is increased, and then fastening bolts are loosened to complete replacement or increase of the saw blade.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inserted sheet hole saw to the change that proposes in solving above-mentioned background art need take off the whole drive arrangement of follow of saw bit when perhaps increasing the saw bit, loosens fastening bolt again and accomplishes the change or the increase of saw bit, and this method is in actual operation, the comparatively loaded down with trivial details problem of step.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an inserted sheet hole saw, includes drilling rod and saw bit, the top fixed mounting of drilling rod has the baffle, the upper portion cover that sets up the groove is equipped with fixture block, the upper end threaded connection of drilling rod has spacing bolt, spacing bolt is connected with fixture block through the reed and drives fixture block through the reed and reciprocates, the middle part cover of drilling rod is equipped with the saw bit, and the top middle part of saw bit is provided with the through-hole, the bilateral symmetry of through-hole is provided with two sets of spacing holes, and fixture block one end is protruding to be extended to spacing hole and through spacing hole at the fixed saw bit of vertical position, and the middle part both sides of drilling rod all set up the groove, and two sets of inside that sets up the groove is installed.

Preferably, two groups of material grooves are respectively arranged on two sides of the top end of the saw blade, a cover plate is arranged on the upper portion of each material groove, and the cover plates are fixedly connected with the saw blade through rotating shafts.

Preferably, the movable block is the design of right angle trapezoidal form, and two sets of movable blocks are close to one side that sets up the groove and pass through first spring and the inner wall fixed connection who sets up the groove.

Preferably, the length of the two groups of material grooves is smaller than that of the cover plate, transverse extending parts are arranged inside the material grooves and fixedly connected with the cover plate through second springs.

Preferably, two sets of vertical extending parts are respectively arranged on two sides of the bottom end of the fixed clamping block, and the size of the interval between the vertical extending parts is equal to the size of the interval between the two sets of limiting holes.

Preferably, the sum of the length of the bottom edges of the two groups of movable blocks and the width of the drill rod is greater than the length of the through hole, and the length of the bottom edges of the two groups of movable blocks is the same as the width of the setting groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this inserted sheet hole saw sets up spacing bolt, the reed, fixed fixture block, and the movable block, and make fixed fixture block remove the fixed action to the saw bit through removing spacing bolt to fixed fixture block's extrusion limiting displacement during the use, make the movable block embedding to the inside that sets up the groove through subtend extruded mode, thereby make the saw bit take off fast from the drilling rod, it needs to take off the whole drive arrangement of saw bit when changing according to the saw bit or increasing the saw bit to have avoided traditional hole saw, loosen fastening bolt again and accomplish the change or the increase of saw bit, this method is in the actual operation, the comparatively loaded down with trivial details problem of step, staff's work efficiency has been improved.

2. This inserted sheet hole saw is provided with the saw bit, the apron, second spring and silo, whole when the saw bit all is in hole extremely back down during the use, the piece is saved in the inside of saw bit, can play the impetus to the apron after clastic volume reaches the certain degree, the piece is slow to pass the inside of silo follow saw bit and is shifted out under the injecing of apron, traditional hole saw has been avoided under the darker circumstances of drilling, the piece of accumulation in the hole saw is difficult to the exhaust problem, the ease of use of device has been improved.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is a schematic top view of the present invention.

In the figure: 1. a drill stem; 2. a limit bolt; 3. a reed; 4. fixing the fixture block; 5. a first spring; 6. a movable block; 7. arranging a groove; 8. a saw blade; 9. a through hole; 10. a limiting hole; 11. a cover plate; 12. a second spring; 13. a trough; 14. and a baffle plate.

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:

the utility model provides an inserted sheet hole saw, including drilling rod 1 and saw bit 8, the top fixed mounting of drilling rod 1 has baffle 14, and the middle part both sides of drilling rod 1 all set up and set up groove 7, two sets of inside that sets up groove 7 has movable block 6 through pivot fixed mounting, movable block 6 is the design of right trapezoid shape, and two sets of movable block 6 are close to one side that sets up groove 7 through first spring 5 and the inner wall fixed connection who sets up groove 7, through this design, when movable block 6 receives the effect of pressure, movable block 6 can revolute the axle and rotate and shrink to the inside that sets up groove 7, ensure the normal operating of device, the upper portion cover that sets up groove 7 is equipped with fixture block 4, the upper end threaded connection of drilling rod 1 has stop bolt 2, stop bolt 2 passes through reed 3 and fixture block 4 fixed connection, the middle part cover of drilling rod 1 is equipped with saw bit 8, and the top middle part of saw bit 8 is provided with through-hole 9, the length size sum on the base of two sets of movable block And the length of the base of two sets of movable blocks 6 is the same with the width size that sets up groove 7, through this design, through-hole 9 can play the effect to the promotion of movable block 6 when the installation, make movable block 6 imbedding to the inside that sets up groove 7, after through-hole 9 crossed movable block 6, movable block 6 can play the limiting displacement to through-hole 9, the bilateral symmetry of the normal installation through-hole 9 of assurance device is provided with two sets of spacing holes 10, the bottom both sides of fixture block 4 are provided with two sets of vertical extension respectively, and the interval size between vertical extension equals the interval size between two sets of spacing holes 10, make fixture block 4 and saw bit 8 can form embedded connection structure through this design, avoid saw bit 8 to take place to start in work, ensure the normal use of device.

Saw bit 8's top both sides are provided with two sets of silos 13 respectively, silo 13's upper portion is provided with apron 11, and apron 11 is through pivot and saw bit 8 fixed connection, two sets of silo 13's length size is less than apron 11's length size, and silo 13's inside is provided with horizontal extension, horizontal extension passes through second spring 12 and apron 11 fixed connection, make apron 11 can cover the outside at silo 13 completely through this design, and apron 11 has the trend of decurrent motion all the time under second spring 12's effect, make apron 11 can cause the hindrance effect to the piece, borrow this and make the piece slowly shift out, the ease for use of device has been improved.

The working principle is as follows: when the saw blade 8 needs to be replaced, firstly, the limiting bolt 2 is rotated to enable the limiting bolt 2 to move upwards to remove the limiting relation of the limiting bolt 2 to the fixed clamping block 4, then the upper part of the movable block 6 is pressed oppositely, the lower end of the movable block 6 rotates around a shaft under the action of pressure, the upper end of the movable block 6 slides to the inside of the setting groove 7 under the action of rotation, the first spring 5 contracts under the action of the movable block 6 to accumulate force, under the action of the elastic force of the reed 3, the fixed clamping block 4 pushes the saw blade 8 to enable the saw blade 8 to move downwards, therefore, the saw blade 8 is taken down from the drill rod 1, the saw blade 8 which needs to be replaced is sleeved on the drill rod 1 again and pushes the saw blade 8 upwards, under the pushing action of the saw blade 8, the two groups of movable blocks 6 are stressed to rotate again and contract to the inside of the setting groove 7, after the top end of the saw blade 8 passes through the setting groove 7, the movable block 6 is poppe, the saw blade 8 is rotated to align the limiting hole 10 formed in the saw blade 8 with the vertical extending part at the lower end of the fixed fixture block 4 and enable the vertical extending part to be embedded into the limiting hole 10, the limiting bolt 2 is screwed again, the limiting bolt 2 is enabled to move downwards, and the limiting effect on the fixed fixture block 4 is achieved.

Saw bit 8 during operation, when the main part of saw bit 8 is deepened to the inside of panel, piece during drilling is stayed inside of saw bit 8 when the piece is constantly increasing, apron 11 revolute the rotation of axes under clastic extrusion, and apron 11 makes second spring 12 extension accumulate power in the pivoted, the piece progressively passes silo 13 under the effect of silo 13 and removes to the outside of saw bit 8, after finishing using, upwards lift saw bit 8, after losing clastic impetus, second spring 12 resumes to original form, apron 11 resumes to initial position department under the effect of second spring 12's elasticity, this operation finishes.

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. An insert hole saw, includes drilling rod (1) and saw bit (8), its characterized in that: the drill rod structure is characterized in that a baffle (14) is fixedly mounted at the top end of the drill rod (1), a setting groove (7) is formed in the drill rod (1), a fixed clamping block (4) is sleeved on the upper portion of the setting groove (7), a limiting bolt (2) is connected to the upper end of the drill rod (1) in a threaded mode, the limiting bolt (2) is connected with the fixed clamping block (4) through a reed (3) and drives the fixed clamping block (4) to move up and down through the reed (3), a saw blade (8) is sleeved in the middle of the drill rod (1), a through hole (9) is formed in the middle of the top end of the saw blade (8), two sets of limiting holes (10) are symmetrically formed in the two sides of the through hole (9), one end of the fixed clamping block (4) extends to the limiting holes (10) in a protruding mode, the saw blade (8) is, the inside of the two sets of arrangement grooves (7) is provided with movable blocks (6) for fixing the saw blades (8) through a rotating shaft.

2. A tab hole saw as in claim 1, wherein: two groups of material grooves (13) are respectively arranged on two sides of the top end of the saw blade (8), a cover plate (11) is arranged on the upper portion of each material groove (13), and the cover plates (11) are fixedly connected with the saw blade (8) through rotating shafts.

3. A tab hole saw as in claim 2, wherein: the movable blocks (6) are designed in a right-angle trapezoidal shape, and one side of each of the two groups of movable blocks (6) close to the corresponding setting groove (7) is fixedly connected with the inner wall of the corresponding setting groove (7) through a first spring (5).

4. A tab hole saw as in claim 3 wherein: the length of two sets of silo (13) is less than the length of apron (11) size, and the inside of silo (13) is provided with horizontal extension, horizontal extension passes through second spring (12) and apron (11) fixed connection.

5. A tab hole saw as in claim 1, wherein: two sets of vertical extending parts are respectively arranged on two sides of the bottom end of the fixed clamping block (4), and the size of the space between the vertical extending parts is equal to the size of the space between the two sets of limiting holes (10).

6. A tab hole saw as in claim 1, wherein: the sum of the length of the bottom edges of the two groups of movable blocks (6) and the width of the drill rod (1) is greater than the length of the through hole (9), and the length of the bottom edges of the two groups of movable blocks (6) is the same as the width of the setting groove (7).