Woodworking tapper

Abstract

The utility model relates to a woodworking tapper, which belongs to the technical field of tappers and comprises a head part, two cutting parts are fixedly connected to the circumference of the head part, a circle center cone is fixedly connected to the center of the top end of the head part, and cutting blades are fixedly connected to the cutting surfaces of the cutting parts. The drill bit has the advantages that when a worker opens a hole, the circle center cone on the head portion can play a centering role while rotating and feeding, meanwhile, the cutting blade cuts a machined surface, the scratching cone can trim the hole wall of a drilled inner hole, and by means of the counter-acting force of the spring, in the rotating process of the cutting portion, the inner hole can be cut through the scratching cone. The protective cover is gradually pushed to slide on the fixing rod and always abuts against the machining surface, then the protective cover can be used for covering the cutting position, the flying chip bursting range in the punching process is reduced, flying chips can be collected through use of the protective cover, and wood chips can be conveniently treated after punching work is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hole opener technical field especially relates to carpenter hole opener. BACKGROUND

[0002] A hole opener is a tool or device used to create holes in solid materials or objects, commonly used in construction, engineering, medical, manufacturing and other fields, in order to install, fix, ventilate or other operations that need holes.

[0003] Through the retrieval, China patent discloses a kind of multifunctional lengthening carpenter hole opener, authorized announcement No. CN208664019U), including head, handle and tail, head is peripherally provided with multiple cutting parts, cutting surface of cutting part is fixed with cutting blade, head lower surface is provided with the circle center cone for positioning and circle cone, circle center cone is located on the circle center position of head lower surface, circle cone is located at the edge of head lower surface, the upper surface of head is provided with lengthened handle, the surface of handle is provided with spiral part, spiral part is integrally connected with head, spiral part is double-groove double-spiral design, tail is provided at the end of handle away from head, the middle part of tail is provided with R-shaped slot, although the patent technology can be integrally connected with head by double-groove double-spiral spiral part, so that the dust can be directly discharged from the double-spiral groove of spiral part, reaches the effect of unobstructed chip removal, the setting of tail and the R-shaped slot in the middle part designed according to the principle of wind batch head, so it can be applied to various types of drilling machines.

[0004] But the above-mentioned device still has some shortcomings in actual use, the more obvious is that the above-mentioned carpenter hole opener in use process, because it is not equipped with protective structure, will make the drillings produce ejection, not only will increase the difficulty of staff to clean up the fly ash afterwards, at the same time, it will cause threat to personnel safety. INVENTION CONTENTS

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide carpenter hole opener.

[0006] The technical scheme of the utility model is as follows: carpenter hole opener, including head, the circumferential fixed connection of head is provided with two cutting parts, the top center of head is fixedly connected with circle center cone, the cutting surface of cutting part is fixedly connected with cutting blade, two cutting parts are symmetrically arranged with circle center cone as center, the outer peripheral wall of cutting part is fixedly connected with circle cone, the bottom of head is fixedly connected with handle, the outside of handle is slidably installed with mounting sleeve, the outside of mounting sleeve is equidistantly fixedly connected with two fixed blocks, two fixed blocks are fixedly connected with fixed rod, the outside of mounting sleeve is slidably connected with protective cover, the inside of fixed rod is slidably connected with protective cover, the outside of fixed rod and below protective cover are all sleeved with spring.

[0007] By adopting the above technical scheme, through the reaction force of the spring, the protective cover can be gradually pushed to slide on the fixed rod during the rotation of the cutting part, and always abuts against the machining surface, so that the cutting part can be covered by the protective cover, and the flying chip range during the punching process is reduced. The flying chips can be collected by using the protective cover, so as to process the wood chips after the hole opening work is completed.

[0008] As a preferred implementation form, the bottom of the mounting sleeve is fixedly connected with a fixing ring, the inside of the fixing ring is provided with a locking assembly, the locking assembly comprises a circular groove opened at both ends of the inside of the fixing ring, the inside of the circular groove is slidably provided with a displacement plate, both ends of the inside of the fixing ring are threadedly connected with a screw rod, one end of the screw rod extends into the inside of the circular groove and is rotationally connected with the corresponding displacement plate.

[0009] By adopting the above technical scheme, through the rotation of the screw rod, the displacement plate can be pushed to move in the circular groove, so that the clamping piece and the clamping groove on the handle part are in a clamping state.

[0010] As a preferred implementation form, the locking assembly further comprises a clamping piece fixedly connected to the side of the displacement plate away from the screw rod, the inside of the handle part is provided with a clamping groove matched with the clamping piece, and the clamping groove is clamped with the corresponding clamping piece.

[0011] By adopting the above technical scheme, through the reverse rotation of the screw rod, the clamping piece can be driven to separate from the corresponding clamping groove, and after the locking of the clamping piece is lost, the staff can easily take out the mounting sleeve from the handle part.

[0012] As a preferred implementation form, the inside of the circular groove is provided with a limiting assembly, the limiting assembly comprises a limiting groove opened in the inside of the fixing ring and located at both sides of the circular groove, and the inside of the limiting groove is slidably connected with a limiting block.

[0013] By adopting the above technical scheme, through the cooperation of the limiting groove and the limiting block, the displacement plate can be limited to a certain extent.

[0014] As a preferred implementation form, the limiting block is slidably connected with the corresponding limiting groove, and the spring abuts against the bottom end of the protective cover.

[0015] By adopting the above technical scheme, the spring always abuts against the protective cover.

[0016] As a preferred implementation form, the bottom of the head part is provided with a butt joint groove, and the top of the mounting sleeve is fixedly connected with a butt joint ring matched with the butt joint groove.

[0017] By adopting the technical scheme, the connection between the head and the mounting sleeve is increased by cooperation of the abutment ring and the abutment groove, so that the mounting sleeve is not easy to shake during the hole opening process.

[0018] As a preferred embodiment, the tail is fixedly connected to one end of the handle away from the head.

[0019] By adopting the technical scheme, the output end of the external device is matched and docked.

[0020] As a preferred embodiment, the wear-resistant ring is fixedly connected to one side of the protective cover away from the tail, and the screw rod extends to the outside of the fixed ring and is fixedly connected with the adjusting knob at one end away from the displacement plate.

[0021] By adopting the technical scheme, the screw rod is rotated by the adjusting knob.

[0022] Compared with the prior art, the wood working hole opener has the advantages and positive effects that,

[0023] 1. In the utility model, the center of the head can be centered while rotating and feeding when the staff is opening a hole, the cutting blade can cut the processing surface, and the conical circle can trim the inner hole wall drilled, and the protective cover can be gradually pushed to slide on the fixed rod in the rotating process of the cutting part by the reaction force of the spring, and always abuts against the processing surface, so that the cutting part can be covered by the protective cover, the flying chip ejection range in the punching process is reduced, the flying chips can be collected by the protective cover, and the wood chips can be treated after the hole opening work is completed.

[0024] 2. In the utility model, the reverse rotation of the screw rod can drive the clamping piece to separate from the corresponding clamping groove, the staff can easily take out the mounting sleeve from the handle after the clamping piece is locked, so that the mounting sleeve is disassembled to adapt to different hole opening requirements. DRAWINGS

[0025] Figure 1 The utility model provides whole perspective drawing of wood working hole opener;

[0026] Figure 2 The utility model provides partial schematic view of wood working hole opener;

[0027] Figure 3 The utility model provides partial top view of wood working hole opener;

[0028] Figure 4 The utility model provides explosion drawing of wood working hole opener;

[0029] Figure 5The utility model provides a locking assembly schematic view of wood boring tool.

[0030] Legend: 1, head; 2, cutting part; 3, center cone; 4, cutting blade; 5, circle cone; 6, protective cover; 7, fixed block; 8, mounting sleeve; 9, spring; 10, fixed rod; 11, fixed ring; 12, clamping groove; 13, round groove; 14, screw rod; 15, displacement plate; 16, clamping piece; 17, handle; 18, tail. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] Reference Figures 1-5 , wood boring tool, including head 1, the circumference of head 1 is fixedly connected with two cutting parts 2, the top center of head 1 is fixedly connected with center cone 3, the cutting surface of cutting part 2 is fixedly connected with cutting blade 4, two cutting parts 2 are symmetrically arranged with center cone 3 as the center, the outer peripheral wall of cutting part 2 is fixedly connected with circle cone 5, the bottom of head 1 is fixedly connected with handle 17, the outer side of handle 17 is slidably installed with mounting sleeve 8, the outer side of mounting sleeve 8 is equidistantly fixedly connected with two fixed blocks 7, two fixed blocks 7 are fixedly connected with fixed rod 10, the outer side of mounting sleeve 8 is slidably connected with protective cover 6, fixed rod 10 is slidably connected with the inside of protective cover 6, the outer side of fixed rod 10 and below protective cover 6 are all sleeved with spring 9, when boring, center cone 3 on head 1 can play the role of centering while rotating and feeding, cutting blade 4 can cut the machining surface, circle cone 5 can trim the inner hole wall drilled, and through the reaction force of spring 9, protective cover 6 can be gradually pushed to slide on fixed rod 10 in the rotating process of cutting part 2, and always abut against the machining surface, so that the cutting part can be covered by protective cover 6, and the flying chip ejection range in the punching process is reduced, the flying chip can be collected by the use of protective cover 6, so that the wood chips can be treated after the boring work is completed.

[0033] Specifically, the bottom of the mounting sleeve 8 is fixedly connected with a fixing ring 11, the inside of the fixing ring 11 is provided with a locking assembly, the locking assembly comprises a circular groove 13 opened at both ends in the inside of the fixing ring 11, the inside of the circular groove 13 is slidably provided with a displacement plate 15, both ends in the inside of the fixing ring 11 are threadedly connected with a screw rod 14, through the rotation of the screw rod 14, the displacement plate 15 can be pushed to move in the circular groove 13, and then the clamping piece 16 and the clamping groove 12 on the handle 17 can be in a clamping state, so that the mounting sleeve 8 can be fixed on the handle 17, so as to realize the purpose of quickly installing the handle 17, one end of the screw rod 14 extends to the inside of the circular groove 13 and is rotationally connected with the corresponding displacement plate 15, the locking assembly further comprises a clamping piece 16 fixedly connected to the displacement plate 15 away from the screw rod 14, the inside of the handle 17 is provided with a clamping groove 12 used in cooperation with the clamping piece 16, the clamping groove 12 is clamped with the corresponding clamping piece 16, through the reverse rotation of the screw rod 14, the clamping piece 16 can be separated from the corresponding clamping groove 12, after losing the locking of the clamping piece 16, the staff can easily take out the mounting sleeve 8 from the handle 17, so as to realize the purpose of disassembling the mounting sleeve 8, so as to adapt to different hole opening requirements.

[0034] Specifically, the inside of the circular groove 13 is provided with a limiting assembly, the limiting assembly comprises a limiting groove opened in the inside of the fixing ring 11 and located at both sides of the circular groove 13, the inside of the limiting groove is slidably connected with a limiting block, through the cooperation of the limiting groove and the limiting block, on the one hand, the displacement plate 15 can be limited to a certain extent, avoiding the self-rotation of the clamping piece 16 caused by the screw rod 14, on the other hand, the displacement plate 15 and the clamping piece 16 can be more stable during adjustment, the limiting block is slidably connected with the corresponding limiting groove, the spring 9 abuts against the bottom end of the protective cover 6, the bottom of the head 1 is provided with a butt joint groove, the top of the mounting sleeve 8 is fixedly connected with a butt joint ring used in cooperation with the butt joint groove, through the cooperation of the butt joint ring and the butt joint groove, the connection between the head 1 and the mounting sleeve 8 can be increased, so that the mounting sleeve 8 is not easy to shake during the hole opening process, so as to improve the stability of the protective cover 6, the end of the handle 17 away from the head 1 is fixedly connected with a tail 18, the side of the protective cover 6 away from the tail 18 is fixedly connected with a wear-resistant ring, which can improve the wear resistance of the upper surface of the protective cover 6 and prolong its service life, one end of the screw rod 14 away from the displacement plate 15 extends to the outside of the fixing ring 11 and is fixedly connected with an adjusting knob, through the setting of the adjusting knob, the screw rod 14 can be rotated.

[0035] Working principle: first, the tail part 18 on the trepanning device is matched with the output end of the equipment, and the mounting sleeve 8, the fixing ring 11 and the protective cover 6 are pushed upwards from the tail part 18 to be sleeved at the position of the handle part 17, at this time, the worker can rotate the screw rod 14, the displacement plate 15 can be pushed to move in the circular groove 13, and then the clamping piece 16 can be in the clamping state with the clamping groove 12 on the handle part 17, so that the mounting sleeve 8 can be fixed on the handle part 17, then the equipment is started, the circular center cone 3 on the head part 1 can play a centering role while rotating and feeding, the cutting blade 4 can cut the machining surface, and the circle cone 5 can trim the inner hole wall drilled, and in the rotating and advancing process of the cutting part 2, the protective cover 6 can be gradually pushed to slide on the fixing rod 10 by the spring 9, and always abuts against the machining surface, so that the flying chip ejection range in the punching process is reduced, and in the punching process, the flying chips are collected in the protective cover 6, so that the wood chips can be treated after the punching work is completed, the following steps can be carried out: the worker can reverse the screw rod 14 to drive the clamping piece 16 to be separated from the corresponding clamping groove 12, after the locking of the clamping piece 16 is lost, the worker can easily take out the mounting sleeve 8 from the handle part 17, so that the mounting sleeve 8 is disassembled, and the flying chips in the protective cover 6 are treated.

[0036] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific situation.

[0037] The above is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A woodworking hole saw, comprising a head (1), characterized in that: The head (1) is circumferentially fixedly connected to two cutting parts (2), and a central cone (3) is fixedly connected at the top center of the head (1). A cutting blade (4) is fixedly connected on the cutting surface of the cutting part (2). The two cutting parts (2) are symmetrically arranged with the central cone (3) as the center. A scribing cone (5) is fixedly connected to the outer peripheral wall of the cutting part (2). The bottom of the head (1) is fixedly connected to a handle (17), and an installation sleeve (8) is slidably installed on the outside of the handle (17). Two fixing blocks (7) are fixedly connected at equal intervals on the outside of the installation sleeve (8). A fixing rod (10) is fixedly connected between the two fixing blocks (7). A protective cover (6) is slidably connected on the outside of the installation sleeve (8). The fixing rods (10) are all slidably connected to the inside of the protective cover (6). A spring (9) is sleeved on the outside of the fixing rods (10) and below the protective cover (6).

2. The woodworking hole saw according to claim 1, characterized in that: The bottom of the mounting sleeve (8) is fixedly connected to a fixing ring (11). The fixing ring (11) is provided with a locking component. The locking component includes circular grooves (13) opened at both ends inside the fixing ring (11). Displacement plates (15) are slidably installed inside the circular grooves (13). Both ends inside the fixing ring (11) are threadedly connected to screws (14). One end of the screw (14) extends into the interior of the circular groove (13) and is rotatably connected to the corresponding displacement plate (15).

3. The woodworking hole saw according to claim 2, characterized in that: The locking assembly also includes a snap-fit ​​member (16) fixedly connected to the side of the displacement plate (15) away from the screw (14). The inside of the handle (17) is provided with a snap-fit ​​groove (12) that cooperates with the snap-fit ​​member (16). The snap-fit ​​groove (12) engages with the corresponding snap-fit ​​member (16).

4. The woodworking hole saw according to claim 2, characterized in that: Each of the circular grooves (13) is provided with a limiting component. The limiting component includes a limiting groove opened inside the fixing ring (11) and located on both sides of the circular groove (13). Each limiting groove is slidably connected with a limiting block.

5. The woodworking hole saw according to claim 4, characterized in that: The limiting blocks are all slidably connected to the corresponding limiting grooves, and the springs (9) all abut against the bottom end of the protective cover (6).

6. The woodworking hole saw according to claim 1, characterized in that: The bottom of the head (1) is provided with a docking groove, and the top of the mounting sleeve (8) is fixedly connected with a docking ring that works with the docking groove.

7. The woodworking hole saw according to claim 1, characterized in that: The handle (17) is fixedly connected to a tail (18) at the end away from the head (1).

8. The woodworking hole saw according to claim 2, characterized in that: The protective cover (6) is fixedly connected to a wear-resistant ring on the side away from the tail (18), and the end of the screw (14) away from the displacement plate (15) extends to the outside of the fixing ring (11) and is fixedly connected to an adjustment knob.

Images