CN204603395U - circular hole saw assembly - Google Patents
circular hole saw assembly Download PDFInfo
- Publication number
- CN204603395U CN204603395U CN201520174080.2U CN201520174080U CN204603395U CN 204603395 U CN204603395 U CN 204603395U CN 201520174080 U CN201520174080 U CN 201520174080U CN 204603395 U CN204603395 U CN 204603395U
- Authority
- CN
- China
- Prior art keywords
- junction surface
- hole
- quickly disassembling
- hexagonal
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 53
- 239000011324 bead Substances 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 241000278713 Theora Species 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 210000003000 inclusion body Anatomy 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a round hole saw subassembly indicates a round hole saw structure with quick detach drilling rod, and it is including installing the quick detach device and the drilling rod of round hole saw, this quick detach device direct mount in the round hole saw, and this drilling rod is installed in quick detach device, and this quick detach device has the structure of unblock and locking drill bit. The drill rod is sleeved in the quick-release device, an operator is allowed to quickly lock the drill rod and release the locking position of the drill rod, a user can quickly install the handle on the circular hole saw, the drill rod can quickly slide out of the quick-release device to replace a new drill rod, and then the handle is locked on the circular hole saw, so that the handle and the circular hole saw can synchronously rotate.
Description
Technical field
The utility model relates to a kind of crown saw assembly, refer to that permission drilling rod can be installed on crown saw rapidly, and can fast by drilling rod by crown saw removal, drilling rod is usually assembled and is fixed in the axis hole of crown saw, the function that the crown saw being applicable to different-diameter size is located as axle center, can not offset when rotating for crown saw.
Background technology
Known crown saw assembly, there is more than one piece patent to be to provide and a drilling rod can be allowed can be installed on crown saw rapidly, and can fast by drilling rod by crown saw removal, mostly such as general crown saw device for quickly disassembling is for (crown saw of more than diameter 30mm) designed by larger diameter crown saw, in order to coordinate the large-diameter circular hole saw of high torsion, as U.S. Patent number: US8328474, this hole cutter 12 assembles a upper end plate 14, wherein this drive shank 24 has body portion 26, the flats 25 of this body portion 26 is locked on end plate 14, pilot bit 64 is assembled in A drive shank 24, this body portion 26 and collar 50 are combined as the device of quick change pilot bit 64, quick change device is connected to drive shank 24, and quick change device has drive pins 36 and is assembled in end plate 14 corresponding drive pin apertures 18, wherein, drive shank 24 provides as final drive shaft for hole cutter 12.This structure is the crown saw that cannot be useful in hole shape below diameter 30mm, because the junction width of the crown saw of hole shape below diameter 30mm, is not sufficient to provide drive pins 36 (device for quickly disassembling) to assemble.
And Canadian Patent number: CA2283453, this is the crown saw being applicable to small-bore, but this structure discloses drilling rod and an adapter can remove with axial start the scrap be attached on crown saw and drilling rod, its drilling rod cannot depart from by adapter is removed, so when drill pipe wear, must change together with adapter; And this adapter carries out axial start drill bit and locates with radial rotating, be provide by spring the function withstanding adapter subsidy stopper, when Long-Time Service after a while, this spring may produce elastic fatigue and cannot provide adapter stopper location on the position needed, this will make drill bit can because of cannot effective location and present and axially descend start, for during Practical Operation operation being breakneck thing, because drill bit may be caused to offset fracture, relative just having no idea is supplied to the function of crown saw as axle center, location.
For this reason, the utility model is for improveing known shortcoming, the skew of rocking of drilling rod is reduced, and improves the assembling function of drill bit and crown saw faster; And the utility model is the device for quickly disassembling of the crown saw design collocation for below diameter 30mm.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of crown saw assembly, it allows a drilling rod can be installed on crown saw rapidly, and can fast by drilling rod by crown saw removal, drilling rod is usually assembled and is fixed in the axis hole of crown saw, the function that the crown saw being applicable to different-diameter size is located as axle center, can not offset when rotating for crown saw.
In order to solve the problems of the technologies described above, the utility model provides a kind of crown saw assembly, the assembly of the crown saw of finger-hole shape below diameter 30mm, comprise: crown saw, device for quickly disassembling and drilling rod, this device for quickly disassembling is assembled in crown saw, and this drilling rod directly slips into device for quickly disassembling combination and is installed as crown saw assembly:
This device for quickly disassembling comprises a ring body, body and driving body, and wherein, this ring body is provided with trepanning, first end and the second end, and described trepanning is the hollow ring hole body running through ring body, and this second end has hexagonal hole shape, and this first end has flange; This body has expansion section, and this expansion section extends to form the first junction surface, and this body has axis hole, and this axis hole axially extends to the first junction surface by expansion section; This driving body has the second junction surface, this second junction surface axially extends to form stopper, this stopper axially extends to form hexagonal portion, this hexagonal portion axially extends to form threaded portion, this driving body has assembly hole, this assembly hole is hexagon, it axially extends to threaded portion by the second junction surface, this second junction surface is provided with the more than one hole of bead, a pearl body is inserted in this hole of bead, a spring is inserted in this hexagonal portion, and the axis hole at the first junction surface is inserted at this second junction surface, and this stopper is butted on the ora terminalis place at the first junction surface; This body combination driving body inserts the trepanning of ring body again, this expansion section is butted on the edge wall of its first end, this threaded portion protrudes out and passes ring body second end, this hexagonal portion is sleeved on the hexagonal hole shape of ring body, the external diameter of the expansion section of the flange inclusion body of this ring body, external diameter in driving body resets with axial displacement in limited distance, is assembled into device for quickly disassembling with this.
Further, wherein, this crown saw is provided with screw, and the threaded portion for device for quickly disassembling is assembled.
Further, wherein, this drilling rod has drill bit and shank, and this shank is hexagonal cylinder, and it axially extends to form drill bit, and shank is provided with ring groove, can be locked in ring groove with the pearl body of this device for quickly disassembling.
The utility model also provides a kind of crown saw assembly, comprising:
One device for quickly disassembling, comprises a ring body, body and driving body, and wherein, this ring body is provided with trepanning, first end and the second end, and described trepanning is the hollow ring hole body running through ring body, and this second end has hexagonal hole shape, and this first end has flange; This body has expansion section, and this expansion section extends to form the first junction surface, and this body has axis hole, and this axis hole axially extends to the first junction surface by expansion section; This driving body has the second junction surface, this second junction surface axially extends to form stopper, this stopper axially extends to form hexagonal portion, this hexagonal portion axially extends to form threaded portion, this driving body has assembly hole, this assembly hole is hexagon, it axially extends to threaded portion by the second junction surface, this second junction surface is provided with the more than one hole of bead, a pearl body is inserted in this hole of bead, a spring is inserted in this hexagonal portion, and the axis hole at the first junction surface is inserted at this second junction surface, and this stopper is butted on the ora terminalis place at the first junction surface; This body combination driving body inserts the trepanning of ring body again, this expansion section is butted on the edge wall of its first end, this threaded portion protrudes out and passes ring body second end, this hexagonal portion is sleeved on the hexagonal hole shape of ring body, the external diameter of the expansion section of the flange inclusion body of this ring body, external diameter in driving body resets with axial displacement in limited distance, is assembled into device for quickly disassembling with this;
One crown saw, has an opening port and an end face, and its hole shape diameter is 30mm or below 30mm, and one end is provided with screw, for assembling with the threaded portion of device for quickly disassembling;
One drilling rod, has drill bit and shank, and this shank is hexagonal cylinder, and it axially extends to form drill bit, and shank is provided with ring groove, and when slipping into device for quickly disassembling with this drill bit, the pearl body of device for quickly disassembling is locked in ring groove; And one end convexedly stretches in device for quickly disassembling, and it is the transmission main shaft as crown saw assembly.
Hold above-mentioned, the direct spiral shell of this device for quickly disassembling is established and is installed on crown saw, this drilling rod directly slips into the combination of this device for quickly disassembling and installs, this device for quickly disassembling has the structure unlocked with locking drill bit, is inserted in device for quickly disassembling with this this drilling rod, and allows operator's quick lock in drilling rod and remove drilling rod latched position, user is also installed rapidly shank in crown saw, drilling rod can skid off rapidly the drilling rod that device for quickly disassembling more renews, and then makes shank be locked in crown saw, can carry out synchronous axial system to make shank with crown saw.
Accompanying drawing explanation
Fig. 1 is exploded view of the present utility model.
Fig. 2 is the exploded view of the utility model device for quickly disassembling.
Fig. 2 A is ring body second end view drawing of the present utility model.
Fig. 3 is the constitutional diagram of the utility model device for quickly disassembling.
Fig. 4 is constitutional diagram of the present utility model.
Fig. 5 is enforcement schematic diagram one of the present utility model.
Fig. 6 is enforcement schematic diagram two of the present utility model.
In figure, device for quickly disassembling------A ring body---------------1 trepanning-------------11
Flange-----------12 first ends-----------1a second end----------1b
Hexagonal hole shape----11a stopper------------111 springs--------------2
Driving body----------3 assembly holes----------31 second junction surface---32
The hole of bead---------the 321a hole of bead----------321b stopper-------------33
Hexagonal portion---------34 threaded portions----------35 pearl bodies------------36a
Pearl body-----------36b body--------------4 axis holes-------------41
Expansion section---------42 first junction surfaces---43 drilling rods--------------5
Shank------------51 drill bits-------------52 ring grooves----------53
Crown saw----------6 screws-------------61.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
The utility model crown saw assembly, refer to a kind of crown saw 6 structure with quick disassembled drilling rod 5, please consult as shown in Figures 1 to 3, it comprises the device for quickly disassembling A and drilling rod 5 that are installed to crown saw 6, this crown saw 6 has an end face and an open end, this open end is circle hole shape opening port, one end is provided with screw 61, wherein, this drilling rod 5 is assembled in device for quickly disassembling A, and this drilling rod 5 has drill bit 52 and shank 51, and this shank 51 is hexagonal cylinder, it axially extends to form drill bit 52, and shank 51 is provided with ring groove 53;
As shown in Figure 2, this device for quickly disassembling A comprises a ring body 1, body 4 and driving body 3, wherein, this ring body 1 is provided with trepanning 11, first end 1a and the second end 1b, described trepanning 11 is for running through the hollow ring hole body of ring body 1, this trepanning 11 extends to the second end 1b and forms hexagonal hole shape 11a, as shown in Figure 1, a stopper 111 is formed with this second end 1b, in other words, this hexagonal hole shape 11a is the hole shape more smaller than trepanning 11 circumference internal diameter, and therefore the second end 1b can form stopper 111, and this first end 1a has flange 12; This body 4 has expansion section 42, and this expansion section 42 extends to form the first junction surface 43, and this body 4 has axis hole 41, and this axis hole 41 axially extends to the first junction surface 43 by expansion section 42; This driving body 3 has the second junction surface 32, this second junction surface 32 axially extends to form stopper 33, this stopper 33 axially extends to form hexagonal portion 34, this hexagonal portion 34 axially extends to form threaded portion 35, this driving body 3 has assembly hole 31, this assembly hole 31 is hexagon, and it axially extends to threaded portion 35 by the second junction surface 32;
And, this second junction surface 32 is provided with the more than one hole of bead 321a, 321b, and this hole of bead 321a, 321b insert pearl body 36a, a 36b, and a spring 2 is inserted in this hexagonal portion 34, the axis hole 41 at the first junction surface 43 is inserted at this second junction surface 32, and this stopper 33 is butted on the ora terminalis place at the first junction surface 43;
Hold above-mentioned, this body 4 combines the trepanning 11 that driving body 3 inserts ring body 1 again, this expansion section 42 is butted on the edge wall of its first end 1a, this threaded portion 35 protrudes out the second end 1b passing ring body 1, this hexagonal portion 34 is sleeved on the hexagonal hole shape 11a of ring body 1, the flange 12 of this ring body 1 inlays the external diameter of the expansion section 42 of jacket body 4, can reset, be assembled into device for quickly disassembling A with this in the external diameter of driving body 3 in limited distance with axial displacement.
As shown in Figure 4, the direct spiral shell in threaded portion 35 of this device for quickly disassembling A establishes the screw 61 being installed on crown saw 6, and this drilling rod 5 directly slips into device for quickly disassembling A combination and is installed as crown saw assembly.This device for quickly disassembling A has the function unlocked with locking drilling rod 5, this drilling rod 5 sliding sleeve enters device for quickly disassembling A and allows operator's quick lock in drilling rod 5 and remove drilling rod 5 latched position, user is also installed rapidly shank 51 in crown saw 6, the shank 51 of drilling rod 5 can skid off rapidly the drilling rod 5 that device for quickly disassembling more renews, then make shank 51 be locked in crown saw 6 with device for quickly disassembling A, synchronous axial system can be carried out with crown saw 6 to make shank 51.
Implementation and operation of the present utility model as shown in Figure 5 and Figure 6, first, the threaded portion 35 of device for quickly disassembling A is locked on the screw 61 of crown saw 6, again by the ring body 1 of device for quickly disassembling A to carry out axial displacement in limited distance, hole of bead 321a is left with the first junction surface 43 ora terminalis of this body 4, 321b, now in hole of bead 321a, pearl body 36a in 321b, 36b presents owing to oppressing without the first junction surface 43 can quick condition, again the shank 51 of drilling rod 5 is penetrated the assembly hole 31 of device for quickly disassembling A, and slide into threaded portion 35 and pass outer end to crown saw 6, until the ring groove 53 of shank 51 is displaced to hole of bead 321a, ring body 1 is decontroled immediately during 321b position, this ring body 1 is resetted because of spring 2, also allow body 4 reset by the reset of ring body 1 simultaneously, now the first junction surface 43 internal diameter compressing pearl body 36a of body 4, 36b, this pearl body 36a, therefore 36b is fixed and is limited in hole of bead 321a, 321b is also resisted against the ring groove 53 of shank 51, namely device for quickly disassembling A is locked in this shank 51, refer to as shown in Figure 5, now an end of shank 51 convexedly stretches in device for quickly disassembling A, and be the transmission main shaft as crown saw 6 assembly, again, when drilling rod 5 will skid off rapidly device for quickly disassembling A, again the ring body 1 of device for quickly disassembling A is carried out axial displacement with limited distance, namely first junction surface 43 ora terminalis of this body 4 leaves hole of bead 321a, 321b, refer to as shown in Figure 6, now in hole of bead 321a, pearl body 36a in 321b, 36b presents owing to oppressing without the first junction surface 41 can quick condition, then the ring groove 53 of shank 51 is no longer by pearl body 36a, 36b stopper locks, so drilling rod 5 can skid off device for quickly disassembling A and depart from crown saw 6, it is made to reset until drilling rod 5 can decontrol ring body 1 after departing from completely.
The utility model has the advantage of:
1. drilling rod 5 is that direct-assembling is in device for quickly disassembling A, and device for quickly disassembling A is that direct-assembling is in crown saw 6, wherein, the shank 51 of this drilling rod 5 is the transmission main shafts for crown saw 6, and after electric tools and shank 51 are assembled, shank 51 is driven by electric tools and rotates, and its drill bit 52 of its relative synchronization Direct driver rotates, and therefore can avoid the skew produced because of vibrations during high-speed rotation.
2. the assembly of device for quickly disassembling A of the present utility model is very simple, and it is that directly lock is fixed at crown saw 6 and becomes a black box, in other words, this crown saw 6 is provided with device for quickly disassembling A, directly slip into device for quickly disassembling A combination lock with this for drilling rod 5 and be fixed in crown saw 6, therefore, when drilling rod 5 is for departing from crown saw 6, only must it be made to carry out axial displacement in limited distance by shirtsleeve operation ring body 1, drilling rod 5 can be allowed to hightail crown saw 6.
3. driving body 3 assembly hole 31 is hexagon, and its shank 51 shape meeting drilling rod 5 is inserted in, and wherein, the hexagonal portion 34 of driving body 3 is sleeved on the hexagonal hole shape 11a of ring body 1, and it is the clamping function providing drilling rod 5 to be prevented it from dallying when driving and rotating; And another function is, driving body 3 can but can not with radial rotating with axial start in the hexagonal hole shape 11a of ring body 1; To be ring body 1 carry out axial displacement operation being able to axle centered by driving body 3 to another saying, but can not centered by driving body 3 axle and have the problem of radial rotating.
The assembly of to be device for quickly disassembling A of the present utility model the be crown saw 6 of special instruction, it provides drilling rod 5 fast changeable and the function locked.And the utility model assembly is applicable to the crown saw of hole shape below diameter 30mm.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (4)
1. a crown saw assembly, the assembly of the crown saw of finger-hole shape below diameter 30mm, comprising: crown saw, device for quickly disassembling and drilling rod, and this device for quickly disassembling is assembled in crown saw, and this drilling rod directly slips into device for quickly disassembling combination and is installed as crown saw assembly, it is characterized in that:
This device for quickly disassembling comprises a ring body, body and driving body, and wherein, this ring body is provided with trepanning, first end and the second end, and described trepanning is the hollow ring hole body running through ring body, and this second end has hexagonal hole shape, and this first end has flange; This body has expansion section, and this expansion section extends to form the first junction surface, and this body has axis hole, and this axis hole axially extends to the first junction surface by expansion section; This driving body has the second junction surface, this second junction surface axially extends to form stopper, this stopper axially extends to form hexagonal portion, this hexagonal portion axially extends to form threaded portion, this driving body has assembly hole, this assembly hole is hexagon, it axially extends to threaded portion by the second junction surface, this second junction surface is provided with the more than one hole of bead, a pearl body is inserted in this hole of bead, a spring is inserted in this hexagonal portion, and the axis hole at the first junction surface is inserted at this second junction surface, and this stopper is butted on the ora terminalis place at the first junction surface; This body combination driving body inserts the trepanning of ring body again, this expansion section is butted on the edge wall of its first end, this threaded portion protrudes out and passes ring body second end, this hexagonal portion is sleeved on the hexagonal hole shape of ring body, the external diameter of the expansion section of the flange inclusion body of this ring body, external diameter in driving body resets with axial displacement in limited distance, is assembled into device for quickly disassembling with this.
2. crown saw assembly as claimed in claim 1, it is characterized in that, wherein, this crown saw is provided with screw, and the threaded portion for device for quickly disassembling is assembled.
3. crown saw assembly as claimed in claim 1, it is characterized in that, wherein, this drilling rod has drill bit and shank, and this shank is hexagonal cylinder, and it axially extends to form drill bit, and shank is provided with ring groove, can be locked in ring groove with the pearl body of this device for quickly disassembling.
4. a crown saw assembly, is characterized in that, comprising:
One device for quickly disassembling, comprises a ring body, body and driving body, and wherein, this ring body is provided with trepanning, first end and the second end, and described trepanning is the hollow ring hole body running through ring body, and this second end has hexagonal hole shape, and this first end has flange; This body has expansion section, and this expansion section extends to form the first junction surface, and this body has axis hole, and this axis hole axially extends to the first junction surface by expansion section; This driving body has the second junction surface, this second junction surface axially extends to form stopper, this stopper axially extends to form hexagonal portion, this hexagonal portion axially extends to form threaded portion, this driving body has assembly hole, this assembly hole is hexagon, it axially extends to threaded portion by the second junction surface, this second junction surface is provided with the more than one hole of bead, a pearl body is inserted in this hole of bead, a spring is inserted in this hexagonal portion, and the axis hole at the first junction surface is inserted at this second junction surface, and this stopper is butted on the ora terminalis place at the first junction surface; This body combination driving body inserts the trepanning of ring body again, this expansion section is butted on the edge wall of its first end, this threaded portion protrudes out and passes ring body second end, this hexagonal portion is sleeved on the hexagonal hole shape of ring body, the external diameter of the expansion section of the flange inclusion body of this ring body, external diameter in driving body resets with axial displacement in limited distance, is assembled into device for quickly disassembling with this;
One crown saw, has an opening port and an end face, and its hole shape diameter is 30mm or below 30mm, and one end is provided with screw, for assembling with the threaded portion of device for quickly disassembling;
One drilling rod, has drill bit and shank, and this shank is hexagonal cylinder, and it axially extends to form drill bit, and shank is provided with ring groove, and when slipping into device for quickly disassembling with this drill bit, the pearl body of device for quickly disassembling is locked in ring groove; And one end convexedly stretches in device for quickly disassembling, and it is the transmission main shaft as crown saw assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103130851A TWI549767B (en) | 2014-09-05 | 2014-09-05 | Round hole saw assembly |
| TW103130851 | 2014-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204603395U true CN204603395U (en) | 2015-09-02 |
Family
ID=53955981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520174080.2U Expired - Fee Related CN204603395U (en) | 2014-09-05 | 2015-03-26 | circular hole saw assembly |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204603395U (en) |
| TW (1) | TWI549767B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6641338B2 (en) * | 2000-03-02 | 2003-11-04 | Roger J. Despres | Plug ejecting hole saw with interchangeable saw cups having different size attachment bores |
| JP2002018613A (en) * | 2000-06-30 | 2002-01-22 | Omi Kogyo Co Ltd | Cutter mounting instrument, cutter and cutting unit instrument |
| US7104738B2 (en) * | 2003-06-27 | 2006-09-12 | Jore Corporation | Hole saw arbor |
| CN2706259Y (en) * | 2004-06-04 | 2005-06-29 | 銓寶工业股份有限公司 | Quick disassembling special tool gripping head |
| TWM263176U (en) * | 2004-09-03 | 2005-05-01 | K & W Tools Co Ltd | Hole saw knife shaft with trifle drive-out function |
| TWM459924U (en) * | 2013-02-27 | 2013-08-21 | Miyanach Ind Co Ltd | Safety quick detachment device of circular hole drill |
| TWM464253U (en) * | 2013-04-19 | 2013-11-01 | Rote Mate Industry Co Ltd | Quick-release structure of hole saw |
-
2014
- 2014-09-05 TW TW103130851A patent/TWI549767B/en not_active IP Right Cessation
-
2015
- 2015-03-26 CN CN201520174080.2U patent/CN204603395U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW201538255A (en) | 2015-10-16 |
| TWI549767B (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2009514692A (en) | Rotary cutting tool | |
| CN104487722B (en) | rotor connection method | |
| RU2017133824A (en) | MOVABLE BOREHOLD TOOLS FOR ATTACHING TO TUBULAR COLUMNS | |
| CN204603395U (en) | circular hole saw assembly | |
| CN209078664U (en) | A kind of bearing disassembling device | |
| UA108630C2 (en) | drive pin SUPPORT | |
| CN201826780U (en) | Drainage drilling machine provided with drill rod detaching device | |
| EP3135853B1 (en) | Combined-type driving sleeve of drilling rig with reliably fixed draw key | |
| CN104565093A (en) | Mounting structure of part and motor spindle | |
| CN104511618A (en) | Electric drill | |
| EP3006147B1 (en) | Hole saw assembly and method for fastening and releasing of a drill rod of such an assembly | |
| CN207229048U (en) | A kind of sand control cap of extension hanger tie-back sleeve | |
| US9707626B2 (en) | Hole saw assembly | |
| CN105536933B (en) | A kind of wear-resistance protective sleeve on hammer of hammer crusher disk | |
| CN203527349U (en) | Tool for disassembling and assembling threaded connecting piece | |
| EP3419788B1 (en) | Cutting tool key, cutting head key assembly and method of attaching cutting head to tool holder | |
| CN204899442U (en) | Fast -assembling lock | |
| CN204437090U (en) | A kind of part and machine shaft mounting structure | |
| CN104763752B (en) | A kind of shaft end limit structure of semiaxis | |
| CN204041944U (en) | With the driving-shaft assembly of loosing and tightening structure safely and fast | |
| CN213532432U (en) | Disassembling tool for positioning pin | |
| CN219685409U (en) | Bowl-shaped plug disassembling tool | |
| CN204221318U (en) | Extruder screw device for quickly disassembling | |
| CN203993597U (en) | Location tapered sleeve | |
| TWM555275U (en) | Transmission shaft separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20190326 |