CN108406955A - A kind of wear-resisting type Multifunctional saw blade - Google Patents
A kind of wear-resisting type Multifunctional saw blade Download PDFInfo
- Publication number
- CN108406955A CN108406955A CN201810332066.9A CN201810332066A CN108406955A CN 108406955 A CN108406955 A CN 108406955A CN 201810332066 A CN201810332066 A CN 201810332066A CN 108406955 A CN108406955 A CN 108406955A
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- groups
- saw blade
- side wall
- massage cushion
- intubation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B21/00—Hand saws without power drive; Equipment for hand sawing, e.g. saw horses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/16—Hand-held sawing devices with circular saw blades
- B23D45/165—Hand-held sawing devices with circular saw blades with a plurality of saw blades or saw blades having plural cutting zones
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to the technical fields that material cuts auxiliary equipment, more particularly to a kind of wear-resisting type Multifunctional saw blade；Including holding rod；Holding rod includes inserting column and intubation, inserting column left side wall and right side wall are longitudinally both provided with multigroup limit hole, holding rod further includes two groups of limiting plates, two groups of connecting rods, two groups of set springs, two groups of connecting plates and two groups of limited blocks, is intubated on left side wall and right side wall and is both provided with through-hole；Further include bolt, nut, connecting pole and rotating bar, the first port is provided on connecting pole, the second port is provided in rotating bar, rotating bar one end is provided with trapezoidal blade body, and the rotating bar other end is rotatably provided with circular saw blade ontology；Including massage cushion, massage cushion is internally provided with connection chamber, and access tube is provided with and communicated on massage cushion, and is provided in access tube and picks and places valve, and massage cushion top and bottom end are both provided with velcro, and non-slip process layer is provided on massage cushion lateral wall.
Description
Technical field
The present invention relates to the technical fields that material cuts auxiliary equipment, more particularly to a kind of wear-resisting type Multifunctional saw blade.
Background technology
It is well known that saw blade is a kind of in material cutting process, friction sawing to be carried out to material, make material more preferably into
The auxiliary device that row separates is widely used in a variety of applications in the field of material cutting；Existing saw blade includes holding rod, hand
It holds bar bottom end and is provided with blade body；Existing saw blade is in use, staff holds holding rod by blade body to soft
Material is cut；It is found in existing saw blade use, hand-held pole length is fixed, cannot be according to the staff side of needs
Just it is adjusted, causes its use more inconvenient；And it integrally realizes that function is less, causes it higher using limitation；And
And stability is poor when holding rod use, it is poor so as to cause its use reliability.
Invention content
In order to solve the above technical problems, a kind of its hand-held pole length of present invention offer can need conveniently according to staff
It is adjusted, so that it is used more convenient；And increases its function of integrally realizing, reduce it and use limitation；And it improves
Stability when holding rod uses, to improve the wear-resisting type Multifunctional saw blade of its use reliability.
A kind of wear-resisting type Multifunctional saw blade of the present invention, including holding rod；Holding rod includes inserting column and intubation, inserting column top
It is inserted into intubation bottom inner portion, inserting column left side wall and right side wall are longitudinally both provided with multigroup limit hole, and holding rod further includes two groups
Limiting plate, two groups of connecting rods, two groups of set springs, two groups of connecting plates and two groups of limited blocks are intubated on left side wall and right side wall and are respectively provided with
There are through-hole, the outer end of two groups of connecting rods to be connect respectively with two groups of limiting plates, the inner end of two groups of connecting rods is each passed through two groups of through-holes
And be respectively protruding into the inside of intubation and connect with two groups of connecting plates, two groups of set springs are respectively positioned in intubation, and two groups of set springs cover respectively
On the outside of two groups of connecting rods, the outer end of two groups of set springs is connect with left side wall in intubation and interior right side wall respectively, two groups of set springs
Inner end is connect on the outside of two groups of connecting plates respectively, and two groups of limited blocks are separately mounted on the inside of two groups of connecting plates, and is located at left side
Limited block be inserted into multigroup one of which in the limit hole in left side and be located inside the limit hole in left side, be located at right side
Limited block is inserted into multigroup one of which in the limit hole on right side and is located inside the limit hole on right side；Further include bolt,
The top of nut, connecting pole and rotating bar, connecting pole is mounted on inserting column bottom end, and the first port, rotating bar are provided on connecting pole
On be provided with the second port, bolt passes through the first port and the second port and insertion and spiral shell are filled to nut interior, rotating bar one end
It is provided with trapezoidal blade body, the rotating bar other end is rotatably provided with circular saw blade ontology；Including massage cushion, inside massage cushion
Be provided with connection chamber, access tube be provided with and communicated on massage cushion, and be provided in access tube and pick and place valve, massage cushion top and
Bottom end is both provided with velcro, and two groups of velcro are pasted, and massage cushion is sleeved on the outside of holding rod, and is arranged on massage cushion lateral wall
There is non-slip process layer.
A kind of wear-resisting type Multifunctional saw blade of the present invention, further includes upper supporting block, support spring and lower supporting block, upper support
Block is mounted on the interior side wall of intubation, and the top of support spring is connect with upper supporting block, the bottom end of support spring and lower supporting block
Connection, lower supporting block are mounted on inserting column top.
A kind of wear-resisting type Multifunctional saw blade of the present invention further includes davit and hanging ring, and intubation top is provided with placing groove, and
It is internally provided with ball bearing and banking stop in placing groove, placing groove top is provided with catch, and the bottom end of davit is inserted across catch
Enter to ball bearing inside and connected with banking stop, the top of davit is connect with hanging ring.
A kind of wear-resisting type Multifunctional saw blade of the present invention, further includes support plate, two groups of fixed plates, two groups of connecting springs and two
The bottom end of group snap-gauge, two groups of fixed plates is separately mounted to support plate top left hand and right side, one end difference of two groups of connecting springs
It is connect on the inside of two groups of fixed plates, the other end of two groups of connecting springs is connect with two groups of snap-gauges respectively, is all provided on the inside of two groups of snap-gauges
It is equipped with sharpening flag.
A kind of wear-resisting type Multifunctional saw blade of the present invention, trapezoidal blade body and circular saw blade ontology extexine are painted with
Molybdenum disulfide.
Beneficial effects of the present invention are compared with prior art：By above-mentioned setting, inserting column and intubation can be passed through
Cooperation enables hand-held pole length to need conveniently to be adjusted according to staff, so that it is used more convenient, only when adjusting
It needs to pull two groups of limiting plates outward, two groups of limiting plates drive two groups of limited blocks on two groups of connecting plates from two groups of limit hole drills
Go out, to facilitate the longitudinal movement of inserting column, and only needs to unclamp two groups of limiting plates after adjusting, two groups of limited blocks can be at two groups
It is put into inside two groups of limit holes under set spring effect, reaches fixed effect, limited block is matched with limit hole, when facilitating insertion
It rivets tightly, though this regulative mode compares usual manner more consumptive material, its material is easy to get, and cost is relatively low instead, and purely mechanic hand
Dynamic adjusting makes its stretching structure pole be hardly damaged, and extremely energy saving；And trapezoidal blade body and circular saw blade can be passed through
Ontology to small material and elongated big material cut respectively rubs cutting, increases its function of integrally realizing, reduces it and uses limitation
Property, when any one group in using trapezoidal blade body and circular saw blade ontology, unscrew nut, rotate Rotational Cylindrical, by demand end
Go to bottom, tighten nut, between nut and Rotational Cylindrical can mechanical interlocking, to facilitate rotatable lamella further to carry out
It is fixed；And stability when holding rod uses can be improved by non-slip process layer, to improve its use reliability, and
It can improve holding rod by access tube to the suitable liquid of connection intracavitary portion importing temperature and capacity and hold comfort level, and lead to
The design for crossing the stickup of two groups of velcro facilitates its dismounting, improves practicability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of massage cushion；
Fig. 3 is the structural schematic diagram that support plate, fixed plate, snap-gauge are connected with sharpening flag；
Fig. 4 is the structural schematic diagram of holding rod；
It is marked in attached drawing：1, inserting column；2, it is intubated；3, limit hole；4, limiting plate；5, connecting rod；6, spring is covered；7, connecting plate；8, it limits
Position block；9, bolt；10, nut；11, connecting pole；12, rotating bar；13, trapezoidal blade body；14, circular saw blade ontology；15, it presses
Rub pad；16, access tube；17, velcro；18, non-slip process layer；19, support spring；20, davit；21, hanging ring；22, banking stop；
23, catch；24, support plate；25, fixed plate；26, snap-gauge；27, sharpening flag.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
As shown in Figures 1 to 4, a kind of wear-resisting type Multifunctional saw blade of the invention, including holding rod；Holding rod includes inserting column
1 and intubation 2, inserting column top is inserted into intubation bottom inner portion, and inserting column left side wall and right side wall are longitudinally both provided with multigroup limit hole
3, holding rod further includes two groups of 4, two groups of limiting plate, 5, two groups of connecting rod set spring, 6, two groups of connecting plates 7 and two groups of limited blocks 8, intubation
Through-hole is both provided on left side wall and right side wall, the outer end of two groups of connecting rods is connect with two groups of limiting plates respectively, two groups of connecting rods
Inner end be each passed through two groups of through-holes and be respectively protruding into the inside of intubation and connect with two groups of connecting plates, two groups of set springs are respectively positioned on slotting
In pipe, and two groups of set springs are set on the outside of two groups of connecting rods, the outer ends of two groups of set springs respectively with left side wall in intubation and interior
Right side wall connects, and the inner end of two groups of set springs is connect on the outside of two groups of connecting plates respectively, and two groups of limited blocks are separately mounted to two groups of companies
On the inside of fishplate bar, and the limited block positioned at left side is inserted into multigroup one of which in the limit hole in left side and is located at left side
Inside limit hole, the limited block positioned at right side is inserted into the limit that multigroup one of which in the limit hole on right side is located at right side
Inside the hole of position；Further include bolt 9, nut 10, connecting pole 11 and rotating bar 12, the top of connecting pole is mounted on inserting column bottom end, even
It connects and is provided with the first port on column, the second port is provided in rotating bar, bolt passes through the first port and the second port and is inserted into
And spiral shell is filled to nut interior, rotating bar one end is provided with trapezoidal blade body 13, and the rotating bar other end is rotatably provided with circle
Blade body 14；Including massage cushion 15, massage cushion is internally provided with connection chamber, and access tube 16 is provided with and communicated on massage cushion, and
It is provided in access tube and picks and places valve, massage cushion top and bottom end are both provided with velcro 17, and two groups of velcro are pasted, massage
Cushion cover is provided with non-slip process layer 18 on the outside of holding rod on massage cushion lateral wall；By above-mentioned setting, can pass through
The cooperation of inserting column and intubation enables hand-held pole length to need conveniently to be adjusted according to staff, keeps its use more square
Just, it only needs to pull two groups of limiting plates outward when adjusting, two groups of limiting plates drive two groups of limited blocks on two groups of connecting plates
It is drilled out from two groups of limit holes, to facilitate the longitudinal movement of inserting column, and only needs to unclamp two groups of limiting plates, two groups of limits after adjusting
Block can be put under two groups of set spring effect inside two groups of limit holes, reach fixed effect, limited block and limit hole phase
Cooperation, riveted tightly when facilitating insertion, though this regulative mode compares usual manner more consumptive material, its material is easy to get, instead cost compared with
It is low, and purely mechanic manual adjusting makes its stretching structure pole be hardly damaged, and it is extremely energy saving；And trapezoidal saw blade can be passed through
Ontology and circular saw blade ontology to small material and elongated big material cut respectively rubs cutting, increases its function of integrally realizing,
It reduces it and uses limitation, when any one group in using trapezoidal blade body and circular saw blade ontology, unscrew nut, rotation turns
Dynamic column, goes to bottom by demand end, tightens nut, between nut and Rotational Cylindrical can mechanical interlocking, turn to convenient
Movable plate is further fixed；And stability when holding rod uses can be improved by non-slip process layer, to improve it
Use reliability, and holding rod can be improved by access tube to the suitable liquid of connection intracavitary portion importing temperature and capacity
Comfort level is held, and its dismounting is facilitated by the design that two groups of velcro are pasted, improves practicability.
A kind of wear-resisting type Multifunctional saw blade of the present invention, further includes upper supporting block, support spring 19 and lower supporting block, upper branch
Bracer is mounted on the interior side wall of intubation, and the top of support spring is connect with upper supporting block, the bottom end of support spring and lower support
Block connects, and lower supporting block is mounted on inserting column top；By above-mentioned setting, adjusting can be facilitated by support spring and improve branch
Support effect.
A kind of wear-resisting type Multifunctional saw blade of the present invention, further includes davit 20 and hanging ring 21, and intubation top is provided with placement
Slot, and it is internally provided with ball bearing and banking stop 22 in placing groove, placing groove top is provided with catch 23, and the bottom end of davit is worn
It crosses catch to be inserted into inside ball bearing and connect with banking stop, the top of davit is connect with hanging ring；It, can by above-mentioned setting
It is more practical to facilitate staff to mount its entirety by hanging ring, facilitate hanging ring to rotate by davit, improves and adapt to
Ability, banking stop limit davit, prevent its placing groove of leaping up out, and banking stop and davit rigid connection, when davit rotates,
Banking stop rotates therewith, and ball bearing is installed between catch and banking stop, to the placing groove that will not leap up out.
A kind of wear-resisting type Multifunctional saw blade of the present invention, further includes 24, two groups of support plate, 25, two groups of fixed plate connecting spring
With two groups of snap-gauges 26, the bottom ends of two groups of fixed plates is separately mounted to support plate top left hand and right side, and the one of two groups of connecting springs
End is connect on the inside of two groups of fixed plates respectively, and the other end of two groups of connecting springs is connect with two groups of snap-gauges respectively, in two groups of snap-gauges
Side is both provided with sharpening flag 27；By above-mentioned setting, the sharpening on two groups of snap-gauges can be driven by two groups of connecting springs
Flag is contacted, and when blade body is passivated, blade body is placed between two groups and is rubbed, and improves practicability.
A kind of wear-resisting type Multifunctional saw blade of the present invention, trapezoidal blade body and circular saw blade ontology extexine are painted with
Molybdenum disulfide；By above-mentioned setting, mechanical wear can be reduced by molybdenum disulfide coating, extend blade body uses the longevity
Life, reduces the loss of blade body, and prevents oxidation and high temperature resistant.
A kind of wear-resisting type Multifunctional saw blade of the present invention can make hand by the cooperation of inserting column and intubation at work
Holding pole length can need conveniently to be adjusted according to staff, so that it is used more convenient, only needed when adjusting outward
Layback moves two groups of limiting plates, and two groups of limiting plates drive two groups of limited blocks on two groups of connecting plates to be drilled out from two groups of limit holes, to
Facilitate the longitudinal movement of inserting column, and only need to unclamp two groups of limiting plates after adjusting, two groups of limited blocks can be made in two groups of set spring
It being put under inside two groups of limit holes, reaches fixed effect, limited block is matched with limit hole, is riveted tightly when facilitating insertion,
Though this regulative mode compares usual manner more consumptive material, its material is easy to get, and cost is relatively low instead, and purely mechanic manual adjusting
Its stretching structure pole is set to be hardly damaged, and extremely energy saving；And trapezoidal blade body and circular saw blade ontology point can be passed through
It is other small material and elongated big material cut rub cutting, increase its function of integrally realizing, reduce it and use limitation, when making
When with any one group in trapezoidal blade body and circular saw blade ontology, unscrew nut, rotates Rotational Cylindrical, demand end is gone to most lower
Side, tighten nut, between nut and Rotational Cylindrical can mechanical interlocking, to facilitate rotatable lamella to be further fixed；And
And stability when holding rod uses can be improved by non-slip process layer, to improve its use reliability, and can lead to
Access tube is crossed to the suitable liquid of connection intracavitary portion importing temperature and capacity, holding rod is improved and holds comfort level, and pass through two groups
The design that velcro is pasted facilitates its dismounting, improves practicability；Adjusting can be facilitated by support spring and improve support effect；
Staff can be facilitated to mount its entirety by hanging ring, it is more practical, facilitate hanging ring to rotate by davit, improves suitable
Should be able to power, banking stop limits davit, prevents its placing groove of leaping up out, and banking stop and davit rigid connection, davit rotation
When, banking stop rotates therewith, and ball bearing is installed between catch and banking stop, to the placing groove that will not leap up out；
The sharpening flag on two groups of snap-gauges can be driven to be contacted by two groups of connecting springs, when blade body is passivated, by saw blade
Ontology rubs between being placed in two groups, improves practicability；Mechanical wear can be reduced by molybdenum disulfide coating, extend saw blade
The service life of ontology, reduces the loss of blade body, and prevents oxidation and high temperature resistant.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of wear-resisting type Multifunctional saw blade, including holding rod；It is characterized in that, holding rod includes inserting column（1）And intubation（2）,
Inserting column（1）Top is inserted into intubation（2）Bottom inner portion, inserting column（1）Left side wall and right side wall are longitudinally both provided with multigroup limit hole
（3）, holding rod further includes two groups of limiting plates（4）, two groups of connecting rods（5）, two groups of set springs（6）, two groups of connecting plates（7）With two groups of limits
Position block（8）, intubation（2）Through-hole, two groups of connecting rods are both provided on left side wall and right side wall（5）Outer end respectively with two groups of limits
Plate（4）Connection, two groups of connecting rods（5）Inner end be each passed through two groups of through-holes and be respectively protruding into intubation（2）Inside with two groups
Connecting plate（7）Connection, two groups of set springs（6）It is respectively positioned on intubation（2）It is interior, and two groups of set springs（6）It is set in two groups of connecting rods（5）
Outside, two groups of set springs（6）Outer end respectively with intubation（2）Interior left side wall is connected with interior right side wall, two groups of set springs（6）Inner end point
Not with two groups of connecting plates（7）Outside connects, two groups of limited blocks（8）It is separately mounted to two groups of connecting plates（7）Inside, and positioned at a left side
The limited block of side（8）It is inserted into multigroup limit hole positioned at left side（3）In one of which be located at the limit hole in left side（3）It is interior
Portion is located at the limited block on right side（8）It is inserted into multigroup limit hole positioned at right side（3）In one of which be located at the limit on right side
Hole（3）It is internal；It further include bolt（9）, nut（10）, connecting pole（11）And rotating bar（12）, connecting pole（11）Top installation
In inserting column（1）Bottom end, connecting pole（11）On be provided with the first port, rotating bar（12）On be provided with the second port, bolt（9）It wears
It crosses the first port and the second port and insertion and spiral shell is filled to nut（10）Inside, rotating bar（12）One end is provided with trapezoidal saw blade sheet
Body（13）, rotating bar（12）The other end is rotatably provided with circular saw blade ontology（14）；Including massage cushion（15）, massage cushion（15）
It is internally provided with connection chamber, massage cushion（15）On be provided with and communicated with access tube（16）, and in access tube（16）On be provided with and pick and place
Valve, massage cushion（15）Top and bottom end are both provided with velcro（17）, two groups of velcro（17）It pastes, massage cushion（15）Suit
On the outside of holding rod, and massage cushion（15）Non-slip process layer is provided on lateral wall（18）.
2. a kind of wear-resisting type Multifunctional saw blade as described in claim 1, which is characterized in that further include upper supporting block, support bullet
Spring（19）With lower supporting block, upper supporting block is mounted on intubation（2）Interior side wall, support spring（19）Top and upper supporting block
Connection, support spring（19）Bottom end connect with lower supporting block, lower supporting block be mounted on inserting column（1）Top.
3. a kind of wear-resisting type Multifunctional saw blade as claimed in claim 2, which is characterized in that further include davit（20）And hanging ring
（21）, intubation（2）Top is provided with placing groove, and is internally provided with ball bearing and banking stop in placing groove（22）, placing groove
Top is provided with catch（23）, davit（20）Bottom end pass through catch（23）It is inserted into ball bearing inside and and banking stop（22）
Connection, davit（20）Top and hanging ring（21）Connection.
4. a kind of wear-resisting type Multifunctional saw blade as claimed in claim 3, which is characterized in that further include support plate（24）, two groups
Fixed plate（25）, two groups of connecting spring and two groups of snap-gauges（26）, two groups of fixed plates（25）Bottom end be separately mounted to support plate
（24）Top left hand and right side, one end of two groups of connecting springs respectively with two groups of fixed plates（25）Inside connects, two groups of connection bullets
The other end of spring respectively with two groups of snap-gauges（26）Connection, two groups of snap-gauges（26）Inside is both provided with sharpening flag（27）.
5. a kind of wear-resisting type Multifunctional saw blade as claimed in claim 4, which is characterized in that trapezoidal blade body（13）And circle
Blade body（14）Extexine is painted with molybdenum disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332066.9A CN108406955A (en) | 2018-04-13 | 2018-04-13 | A kind of wear-resisting type Multifunctional saw blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332066.9A CN108406955A (en) | 2018-04-13 | 2018-04-13 | A kind of wear-resisting type Multifunctional saw blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108406955A true CN108406955A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810332066.9A Pending CN108406955A (en) | 2018-04-13 | 2018-04-13 | A kind of wear-resisting type Multifunctional saw blade |
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| CN2863332Y (en) * | 2005-12-23 | 2007-01-31 | 李定有 | Portable electric saw |
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| CN207043418U (en) * | 2017-08-21 | 2018-02-27 | 盐城三鼎电子科技有限公司 | A kind of backlight parts production bead cutter |
| CN107755823A (en) * | 2017-10-26 | 2018-03-06 | 江苏西夏墅工具产业研究院有限公司 | A kind of mobile phone shell profiled scrapers |
| CN107755744A (en) * | 2017-10-26 | 2018-03-06 | 江苏西夏墅工具产业研究院有限公司 | A kind of depth drill |
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2018
- 2018-04-13 CN CN201810332066.9A patent/CN108406955A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2863332Y (en) * | 2005-12-23 | 2007-01-31 | 李定有 | Portable electric saw |
| CN207043418U (en) * | 2017-08-21 | 2018-02-27 | 盐城三鼎电子科技有限公司 | A kind of backlight parts production bead cutter |
| CN107755823A (en) * | 2017-10-26 | 2018-03-06 | 江苏西夏墅工具产业研究院有限公司 | A kind of mobile phone shell profiled scrapers |
| CN107755744A (en) * | 2017-10-26 | 2018-03-06 | 江苏西夏墅工具产业研究院有限公司 | A kind of depth drill |
| CN107661989A (en) * | 2017-10-27 | 2018-02-06 | 江苏西夏墅工具产业研究院有限公司 | A kind of mouth of pipe thread forming knife |
| CN107695394A (en) * | 2017-10-27 | 2018-02-16 | 江苏西夏墅工具产业研究院有限公司 | A kind of ladder drill |
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Application publication date: 20180817 |