CN2663064Y

CN2663064Y - Wall hole drilling head

Info

Publication number: CN2663064Y
Application number: CN 200320123479
Authority: CN
Inventors: 黄景飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-19
Filing date: 2003-12-19
Publication date: 2004-12-15
Anticipated expiration: 2013-12-19

Abstract

The utility model discloses a wall hole drilling head, which belongs to a tool for building decoration and fitment, and comprises: a cutter head, a convex boss, a pair of blades, a blade groove, a central hole, a tool shank connecting seat. The convex boss is arranged at one side of the cutter head, the pair of blades are arranged respectively at two sides of the convex boss in a diagonal shape, and are provided respectively with a drift slot; the blade groove is arranged on the convex boss, and the central hole is arranged at the middle of the convex boss and communicated with the cavity of the tool shank connecting seat which is arranged at the other side of the cutter head; the blade is arranged fixedly at the blade groove, and a plurality of blade teeth is arranged at the blade; each blade tooth is raised at the surface of the convex boss; the tool shank is provided with a seat tray, a connecting step, a guide rod, a drill bit connecting handle, wherein, the connecting step is arranged at one end of the seat tray, which is connected with the tool shank connecting seat; the guide rod is arranged at the connecting step in an extending manner, and perforates the cavity of the tool shank connecting seat and the central hole; the drill bit connecting handle is arranged at the other end of the seat tray. The utility model has the advantages of rapid speed of perforation without damage to the wall body, and regular hole shape.

Description

The porthole drilling head

Technical field

What the utility model was related is a kind of porthole drilling head, be configured on the drilling tool chuck of percussion drill, be used for body of wall is got out required, belong to the instrument of building decoration, finishing usefulness for installing such as water pipe, power line protecting pipe, air-conditioning refrigeration system to advance/through hole or blind hole the liquid back pipe.

Background technology

To have been brought to completion and be delivered to building in user's hand and enable before decoration the time, different because of constituent parts generally speaking, each resident family and not, mostly, to arrange again to the facility of water supply, power supply, heating, air feed and so on according to the needs of oneself and in conjunction with self factors such as purposes situation.So just, drawn problem to the body of wall punching.

To the body of wall punching, more common also promptly comparatively original way is to adopt the manual cutter of beating, and manual shortcoming of playing cutter is: not only labour intensity is big, inefficiency; And be difficult to obtain required hole shape, also be difficult to the size of control hole body; To easily causing serious related property destruction around the hole body, need do repairing afterwards.

With electrician's instrument such as percussion drill, electric hammer body of wall is punched, more aforesaid manual, have labour intensity and slander, the advantage that efficient is improved relatively.But, with regard to percussion drill, because at present the drill-shape of percussion drill almost is uniformly to be the spirality solid bit thousand times, main is that the size of drill bit such as diameter, length often are limited in several specifications, so it can only be suitable for using under the situation that body of wall approaches, required aperture is less.Be difficult to aforesaid tap water pore, trunking pore, heating pore, air louver processing.Electric hammer is to smash by upper frequency and the multiple impulsive force of the stronger post material with required punching comprehensively, but because of its drill bit that is clamped on the drilling tool chuck also is that spirality is solid, going out bits is affected, make rate of penetration slow, and the drill bit specification of electric hammer also is extremely limited, as opening an air-conditioning installing hole with this instrument, generally need in a hole shape zone, to get several points and bore several holes repeatedly, could finally form an installing hole of wanting.Also have, because of the impulsive force of electric hammer is big, the materials for wall around the hole can be shaken to some extent to be split and even shakes and take off, and gives to repair afterwards and adds to the difficulties, and influences the attractive in appearance of metope.

As if hence one can see that, no matter be percussion drill or electric hammer, only can solve less blind hole in some apertures or through hole.As described above,, in this aperture area, bore system, cause hole shape utmost point irregularity because of repeating to get a ground when go to bore air-conditioning installing hole of system with percussion drill, electric hammer.Therefore the weak point that these instruments had roughly can reduce following some: one, slow, the inefficiency of penetration rate; Two,, afterwards repairing serious to the metope degree of crushing; Three, hole shape irregularity.

Summary of the invention

Task of the present utility model is will provide a kind of not punch speed soon, can not bring porthole drilling head infringement, that hole shape is regular to the metope beyond the vestibule.

Another task of the present utility model is that a kind of cutterhead and the dismountable porthole drilling head of handle of a knife will be provided.

For finishing the top priority of utility model, technical scheme provided by the utility model is: a kind of porthole drilling head, it comprises: cutterhead 1, tool boss 13, wing 11,12, insert groove 14, centre bore 16, handle of a knife Connection Block 15, boss 13 is formed at cutterhead 1 in when work institute side one of in the metope, wing 11,12 lay respectively at two sides of boss 13, and both are the horn shape setting, each tool goes out to consider to be worth doing angle 112,122, insert groove 14 is opened on the boss 13, centre bore 16 is opened in the central authorities of boss 13, communicates with the seat chamber of handle of a knife Connection Block 15, and handle of a knife Connection Block 15 is positioned at cutterhead 1 in when work institute side one of outside metope; Blade 2 is fixedly arranged on the described insert groove 14, is furnished with some sword teeth 21 on it, and each sword tooth 21 is raised in the surface of boss 13; Handle of a knife 3, tool attic base 33, connection step 34, guide post 32, drill bit connection handle 31, connect step 34 and be positioned at one of attic base 33 end, matched with handle of a knife Connection Block 15, guide post 32 is arranged on and connects on the step 34, and passing through seat chamber and the centre bore 16 of handle of a knife Connection Block 15, drill bit connection handle 31 is positioned at the other end of attic base 33, is formed with at the not end of drill bit connection handle 31 to be used for the ball positioning groove 311 that matches with location ball on the percussion drill chuck.

For another task of the present utility model is finished in embodiment, technical scheme provided by the utility model is: the chamber wall in the seat chamber 151 of described handle of a knife Connection Block 15 is provided with screw thread 152, and on described connection step 34, be formed with screw thread 341, screw thread 152 and screw thread 341 both mutually spiral shell join.

Sword tooth 21 on the blade 2 described in the utility model is flat sword tooth 211 at each sword tooth 21 of its left and right outermost end, and other sword tooth 21 be shaped as triangle sword tooth.

Sword tooth 21 on the blade 2 described in the utility model is flat sword tooth 211 at each sword tooth 21 of its left and right outermost end, and other sword tooth 21 be shaped as taper sword tooth.

Sword tooth 21 on the blade 2 described in the utility model is the boundary with centre bore 16, and the sword tooth 21 in left side is opposite with the incline direction of the sword tooth 21 on right side.

Each sword tooth 21 on the blade 2 described in the utility model to the distance of centre bore 16 is inequality.

The utility model does not have punching speed soon, can not cause the damage body of wall when using on being configured to percussion drill, and the regular advantage of hole shape.

Accompanying drawing and drawing explanation

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is application implementation figure of the present utility model.

The specific embodiment

Ask for an interview Fig. 1, provided a cutterhead 1, boss 13 be formed at cutterhead 1 in when work the side in the metope, and wing 11,12 is the distribution of state ground, diagonal angle, because of this set makes whole cutterhead 1 be 8 fonts or title is butterfly shape, naturally constituted crumb mouth 111,121 respectively in wing 11,12 parts that lacked separately, and the angle 112,122 that goes out to consider to be worth doing of wing 11,12 is formed on 111,121 the position towards the crumb mouth separately.This has the effect that goes out bits fast compared with spiral solid drilling tool.Blade 2 can be whole rectangular, also can be to be made of two or more, by solid welding or cementation or be a tight fit on the insert groove 14 that is positioned at boss 13 middle parts.No matter blade 2 is whole rectangular or many, all need reserve the centre bore 16 that a guide post 32 that is used for for handle of a knife 3 passed through.Handle of a knife Connection Block 15 is arranged on cutterhead 1 in the when work institute side outside metope, and its chamber 151 lucky be connected step 34 and match.Consider all size of cutterhead 1 size, cut various aperture to adapt to hit, the inwall in present chamber 151 processes screw thread 152, joins for screw thread 341 and its spiral shell of connecting step 34.Like this, can realize one piece of handle of a knife 3 is advantageously connected on the cutterhead 1 of all size.Certainly, the utility model is not got rid of handle of a knife 3 and handle of a knife Connection Block 15 is formed integrated fixing possibility, is that the cost factor that causes of this mode is big.The applicant why on the blade 2 to be with centre bore 16 that the left side on boundary and right side sword tooth 21 are designed to incline direction opposite, be because this profile of tooth more can be beneficial under bore state and gnaw except that materials for wall; Simultaneously the distance between each leg-of-mutton sword tooth 21 and the centre bore 16 all is inequality, and like this when drilling, each sword tooth 21 operates in respectively on the circumference of different-diameter size and carries out drilling, thereby the speed that can accelerate to punch.Certainly, sword tooth 21 can also be taper.

Still ask for an interview Fig. 1, handle of a knife 3 is the boundary with attic base 33, connect step 34 and be positioned at one of attic base 33 side, and guide post 32 extends on the step 34 from connecting; Drill bit connection handle 31 is positioned at the opposite side of attic base 33, it holds the formation tetrahedron, go out ball positioning groove 311 in this tetrahedral each Surface Machining, like this when it is inserted on the drilling tool chuck of percussion drill, respectively locating ball and just can be bumped in each ball positioning groove 311 on the drilling tool chuck.When handle of a knife 3 by connecting screw thread 341 on the step 34 and revolve on the screw thread 152 that is fitted on handle of a knife Connection Block 15 and revolving when sufficient, attic base 33 touches with the bottom surfaces subsides of handle Connection Block 15 just, has the good effect of keeping out.

Fig. 2 is the Application Example that the applicant provides, and has illustrated the drilling tool chuck of body of wall 5 and percussion drill among the figure or has claimed claw 4.In the time will creating the blind hole of preliminary dimension or through hole (determining) to certain position of body of wall 5 according to actual needs, at first, bore on body of wall with the screw thread solid bit of percussion drill and to make a pilot hole 51, then drill bit connection handle 31 of the present utility model is planted on the claw 4, select and the corresponding to cutterhead 1 of required aperture size, and cutterhead 1 is rotated with on the connection step 34 of handle of a knife 3 by its handle of a knife Connection Block 15.At this moment, guide post 32 in regular turn through seat chamber 151, centre bore 16 and stretch place outside, aim at and enter into pilot hole 51, start the button of percussion drill, drive handle of a knife 3 rotations by claw 4, cutterhead 1 just rotates, in rotary course, 2 pairs of materials for wall drillings gradually of wing 11,12 and blade, and the wall that is produced in drilling process bits are through going out to consider to be worth doing angle 112,122 111,121 discharges from the crumb mouth, until the blind hole or the through hole that obtain required size, the degree of depth.And hole shape is regular, can not undermine vestibule body of wall on every side.

Claims

1, a kind of porthole drilling head, it is characterized in that it comprises: cutterhead (1), tool boss (13), wing (11), (12), insert groove (14), centre bore (16), handle of a knife Connection Block (15), boss (13) is formed at cutterhead (1) in when work institute side one of in the metope, wing (11), (12) lay respectively at two sides of boss (13), and both are the horn shape setting, each tool goes out to consider to be worth doing angle (112), (122), insert groove (14) is opened in boss (13) and goes up the central authorities that centre bore (16) is opened in boss (13), communicate with the seat chamber of handle of a knife Connection Block (15), handle of a knife Connection Block (15) is positioned at cutterhead (1) in when work institute side one of outside metope; Blade (2) is fixedly arranged on the described insert groove (14), is furnished with some sword teeth (21) on it, and each sword tooth (21) is raised in the surface of boss (13); Handle of a knife (3), tool attic base (33), connection step (34), guide post (32), drill bit connection handle (31), connect step (34) and be positioned at one of attic base (33) end, matched with handle of a knife Connection Block (15), guide post (32) is arranged on and connects seat chamber and the centre bore (16) that handle of a knife Connection Block (15) was gone up and passed through to step (34), drill bit connection handle (31) is positioned at the other end of attic base (33), is formed with at the not end of drill bit connection handle (31) to be used for the ball positioning groove (311) that matches with location ball on the percussion drill chuck.

2, porthole drilling head according to claim 1, the chamber wall that it is characterized in that the seat chamber (151) of described handle of a knife Connection Block (15) is provided with screw thread (152), and on described connection step (34), be formed with screw thread (341), screw thread (152) and screw thread (341) both mutually spiral shell join.

3, porthole drilling head according to claim 1 is characterized in that the sword tooth (21) on the described blade (2) is a flat sword tooth (211) at each sword tooth (21) of its left and right outermost end, and other sword tooth (21) be shaped as triangle sword tooth.

4, porthole drilling head according to claim 1 is characterized in that the sword tooth (21) on the described blade (2) is a flat sword tooth (211) at each sword tooth (21) of its left and right outermost end, and other sword tooth (21) be shaped as taper sword tooth.

5, according to claim 1 or 3 or 4 described porthole drilling heads, it is characterized in that the sword tooth (21) on the described blade (2) is the boundary with centre bore (16), the sword tooth (21) in left side is opposite with the incline direction of the sword tooth (21) on right side.

6,, it is characterized in that each sword tooth (21) to the distance of centre bore (16) on the described blade (2) is inequality according to claim 1 or 3 or 4 described porthole drilling heads.