CN108568867A - A kind of carpenter's square hole electric hand drill - Google Patents
A kind of carpenter's square hole electric hand drill Download PDFInfo
- Publication number
- CN108568867A CN108568867A CN201810412472.6A CN201810412472A CN108568867A CN 108568867 A CN108568867 A CN 108568867A CN 201810412472 A CN201810412472 A CN 201810412472A CN 108568867 A CN108568867 A CN 108568867A
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- Prior art keywords
- square hole
- fixed
- carpenter
- electric hand
- block
- Prior art date
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- 241000294399 Scrophularia marilandica Species 0.000 title claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 30
- 238000010168 coupling process Methods 0.000 claims abstract description 30
- 238000005859 coupling reaction Methods 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 26
- 239000010687 lubricating oil Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000219098 Parthenocissus Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C3/00—Drilling machines or drilling devices; Equipment therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of carpenter's square hole electric hand drills, its key points of the technical solution are that：Include flashlight body of drill and drill bit, the output end of the flashlight body of drill is fixed with Hooks coupling universal coupling, the output end of the Hooks coupling universal coupling is fixed with spherical triangle block, the shape of the spherical triangle block is Lay Lip river triangle curve, it is provided with and the matched box of spherical triangle outside the spherical triangle block, the box is fixedly connected with fixed link, it is fixed with fixed block on the flashlight body of drill, it is dismantling connection between the fixed link and fixed block, it is further fixed on the first screw shell on the spherical triangle block, the first screw shell internal thread is connected with drill bit, the cooperation used between spherical triangle block and square groove limits the drilling of drill bit, the square hole shape drilled out is accurate, have simultaneously easy to operate, the reliable advantage of structure.
Description
Technical field
The present invention relates to electric hand drill field, more particularly to a kind of carpenter's square hole electric hand drill.
Background technology
In order to which the timber for keeping two pieces angled connects, carpenter generally uses the method for joggle, thus needs
Rectangular groove is dug on timber, in most cases or user's chisel, impact chisel dig out groove bit by bit,
It is shaped after carefully correcting.Often dimensional accuracy is low for such groove, and cell wall is crude, and the operation study of certain time is not to be difficult
Accomplish, and working efficiency is low and laborious, tool itself is heavy, again frequent sharpening, extremely not applicable, in view of this, needing
To use square auger.
The prior art can refer to the Chinese patent that notification number is CN2635304Y, a kind of Carpenter square hole drilling device, in hull shape
Holder one end is fixed with square hole drill bushing, is elongated rod shape, and shape is well-regulated geometric figure, and inner cavity is hollow cylinder,
Size and solid center bit mutually interactive cooperation, there is the cutting edge of arc-shaped in end；Solid center bit is stretched into from the cutting edge end of square hole drill bushing
Internal stent；The flexible creeper being split into two halves is fixed on holder other end inner wall, bracket end has adjustable clamping ring；
Cutting edge portion is leaned in square hole drill bushing, is provided with the flute of elongate aperture.
This invention address that providing the square auger of another different structure, use between Lay Lip river gore and square groove
Cooperation limits the drilling of drill bit, and the square hole shape drilled out is accurate, while having easy to operate, and structure is reliably excellent
Point.
Invention content
The object of the present invention is to provide a kind of carpenter's square hole electric hand drills, use matching between Lay Lip river gore and square groove
Conjunction limits the drilling of drill bit, and the square hole shape drilled out is accurate, has easy to operate, the reliable advantage of structure.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of carpenter's square hole electric hand drill, includes flashlight body of drill and drill bit, it is characterized in that：The flashlight body of drill it is defeated
Outlet is fixed with Hooks coupling universal coupling, and the output end of the Hooks coupling universal coupling is fixed with spherical triangle block, the spherical triangle block
Shape is Lay Lip river triangle curve, is provided with and the matched box of spherical triangle block, the box outside the spherical triangle block
It is fixedly connected with fixed link, fixed block is fixed on the flashlight body of drill, is dismantling connection between the fixed link and fixed block,
The first screw shell is further fixed on the spherical triangle block, the first screw shell internal thread is connected with drill bit.
Drill bit thread is tightened onto the first screw thread when using carpenter's square hole electric hand drill by using above-mentioned technical proposal
Sleeve is installed, and the structure after installation is more reliable, cooperation between Lay Lip river gore and square groove and universal
Under the collective effect of axis device, it can guarantee that drill bit drills out the preferable square hole of precision, integrated operation is simple, structure is also reliable.
Preferably, it is provided with the shaft shoulder outside the drill bit shank, the outside of the shaft shoulder and the first screw shell is socketed with
The outer wall thread of second screw shell, second screw shell and the first screw shell connects.
By using above-mentioned technical proposal, after drill bit is installed to the first screw shell, the second screw shell of turn, second
Screw shell meeting the first screw shell of precession, while the end of the second screw shell is contradicted to the shaft shoulder, has been carried out into one to drill bit
Step locking, prevents drill bit from falling.
Preferably, the mode that the dismantling connection is connected by screw bolts.
By using above-mentioned technical proposal, bolt will be attached between fixed link and fixed block, safe and reliable after connection,
It also allows for dismantling.
Preferably, sliding groove is offered in the fixed link, is slid in the sliding groove and is connected with sliding shoe, the sliding
It is connected with spring between block and sliding groove slot bottom.
By using above-mentioned technical proposal, after fixed link and fixed block fixation, sliding shoe can be in the effect of spring force
Lower protrusion sliding slot, the connection between fixed link and fixed block are further locked.
Preferably, the box is offering oil groove inside box.
By using above-mentioned technical proposal, the oil groove inside box can be used for placing lubricating oil, reduce Lay Lip river triangle
Abrasion journey of the block in box rotation process improves the service life of carpenter's square hole electric hand drill.
Preferably, it is further opened with the oil filler point for leading to oil groove on the box.
By using above-mentioned technical proposal, the oil filler point opened up on box can be noted in the oil groove more easily into box
Penetrate lubricating oil.
Preferably, the flexible blocking of oil filler point grafting.
By using above-mentioned technical proposal, elasticity blocking, which is arranged, can block oil filler point, prevent some foreign matters from passing through
Oil filler point enters in oil groove, pollutes lubricating oil.
Preferably, the elasticity is blocked in one end far from oil filler point and is provided with knob.
By using above-mentioned technical proposal, it is more laborsaving that setting knob can be such that opening elasticity blocks, and is easy to open elasticity
It blocks and carries out lube oil injection.
Preferably, several heat emission holes are provided on the upper shell.
By using above-mentioned technical proposal, traversing head is additionally provided with above the box.
Preferably, traversing head is set, can be aimed in drilling, keep the square hole drilled out more accurate.
In conclusion the invention has the advantages that：
Its advantage is that：When using carpenter's square hole electric hand drill, drill bit thread is tightened onto the first screw shell and is installed,
Structure after installation is more reliable, the cooperation between Lay Lip river gore and square groove and the collective effect in Hooks coupling universal coupling
Under, it can guarantee that drill bit drills out the preferable square hole of precision, integrated operation is simple, structure is also reliable.
Description of the drawings
Fig. 1 is the structural schematic diagram of carpenter's square hole electric hand drill；
Fig. 2 is one of the structure sectional view of carpenter's square hole electric hand drill；
Enlarged drawing at C in Fig. 2 that Fig. 3 is；
Fig. 4 is the two of the structure sectional view of carpenter's square hole electric hand drill；
Fig. 5 is the three of the structure sectional view of carpenter's square hole electric hand drill；
Fig. 6 is enlarged drawing at D in Fig. 5.
Reference numeral：1, flashlight body of drill；2, drill bit；3, Hooks coupling universal coupling；4, spherical triangle block；5, box；6, fixed
Bar；7, fixed block；8, the first screw shell；9, the shaft shoulder；10, the second screw shell；11, bolt；12, sliding groove；13, it slides
Block；14, spring；15, oil groove；16, oil filler point；17, elasticity blocks；18, it shakes hands；19, traversing head.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in the present invention
It states, it is clear that described invention is only a part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of carpenter's square hole electric hand drill includes flashlight body of drill 1 and drill bit 2, the electric hand drill
The output end of body 1 is fixed with Hooks coupling universal coupling 3, and the output end of the Hooks coupling universal coupling 3 is fixed with spherical triangle block 4, described
The shape of spherical triangle block 4 is Lay Lip river triangle curve, is provided with outside the spherical triangle block 4 and is matched with spherical triangle block 4
Box 5, the box 5 is fixedly connected with fixed link 6, fixed block 7, the fixed link 6 is fixed on the flashlight body of drill 1
It is dismantling connection between fixed block 7, the first screw shell 8, first screw shell is further fixed on the spherical triangle block 4
8 internal threads are connected with drill bit 2.
The Lay Lip river gore of use is specifically explained below：Spherical triangle is called Lay Lip river triangle, is machinery
Scholar's Lay Lip river is studied first, and spherical triangle is drawn in this way, first draws positive triangle, then respectively with three vertex be circle
The heart, a length of radius of the length of side draw the triangle that arc obtains；It can be calculated by Lebesgue integral, it is curve of constant breadth institute energy to strangle Lip river triangle
The figure of the area minimum of composition, area are 1/2 { π-[(radical sign 3)/2] } s^2, and s is fixed width width；One curve graph is put
Among two parallel lines, it is allowed to tangent with this two parallel lines, then can accomplishes：No matter how this curve graph moves, as long as
It is just tangent with this two parallel lines always still in this two parallel lines, but central point can form a circle；Therefore Lay Lip river
Triangular shaped drill bit 2 can drill out the hole of square.
As depicted in figs. 1 and 2, now structure division above is further explained：A kind of carpenter's electric hand drill, including
Flashlight body of drill 1 and drill bit 2, it is generally the case that flashlight body of drill 1 includes motor (stator, rotor, brush), retarder, machine
The compositions such as shell, fan, telophragma, bat-handle switch and commutator, it is fixed on the auger spindle of carpenter's electric hand drill in order to complete to bore square hole
Hooks coupling universal coupling 3, Hooks coupling universal coupling 3 can make two axis not in the case where same axis is there are axis angle, still can be real
Existing two coupled axis continuous rotaries, and torque and movement are reliably transmitted, the maximum feature of Hooks coupling universal coupling 3 is：Its structure
There are larger angular compensatory ability, compact-sized, transmission efficiency, by the explanation to spherical triangle block 4 it is recognised that arc triangle
Shape block 4 turns in order to, with lasting operating is merged, need the bias with the compensation spherical triangle of Hooks coupling universal coupling 3 block 4 with box 5
It is dynamic；The fixed plate in fixed link 6 and flashlight body of drill 1 on box 5 can be removed box 5 by the way of dismantling connection,
Simultaneously can also by electric hand drill spherical triangle block 4 and Hooks coupling universal coupling 3 dismantled from electric hand drill output shaft together, improve hand
The adaptability of electric drill；When needing to bore square hole, the handle spiral of drill bit 2 is connected in the first screw shell 8 and is installed, pacified
After adjustment tries, you can carry out bore operation, total is stable, operation is also very simple.
As shown in Figures 2 and 3, the shaft shoulder 9, the shaft shoulder 9 and the first screw shell 8 are provided with outside 2 drillstock of the drill bit
Outside be socketed with the second screw shell 10, second screw shell 10 is connected with the outer wall thread of the first screw shell 8, when
After drill bit 2 is installed to the first screw shell 8, the second screw shell of turn 10, the second screw shell 10 can the first thread bush of precession
Cylinder 8, while the end of the second screw shell 10 is contradicted to the shaft shoulder 9, has been carried out further locking to drill bit 2, has been prevented drill bit 2 from falling
It falls, since drill bit 2 can bear sizable power during boring dynamic, is fallen in order to avoid drill bit 2 moves process in brill, use is additional
Second screw shell 10, and one end of the second screw shell 10 is made to be contradicted to the shaft shoulder 9 in tightening state, fixed form very may be used
It leans on.
As shown in Fig. 2, the mode of the connection of bolt 11 can be used in dismantling connection, when by fixed link 6 and the fixation of fixed block 7,
Preferable effect can be reached by selecting simple bolt 11 to be attached, while also allow for dismantling, and be offered on fixed block 7 logical
Fixed link 6 is inserted through out through-hole by hole, and threaded hole is offered respectively in fixed link 6 and fixed block 7, by bolt 11 from drilling machine bottom
Portion is screwed into threaded hole, you can realizes locking.
As shown in Figure 2 and Figure 4, in order to keep the installation of fixed block 7 and fixed link 6 more reliable, prevent some factors from causing
11 lockout failure of bolt and be detached from locking, offer sliding groove 12 in fixed link 6, in sliding groove 12 sliding be connected with sliding shoe
13, it is connected with spring 14 between 12 slot bottom of sliding shoe 13 and sliding groove, under the action of 14 elastic force of spring, sliding shoe 13 can be from sliding
A 12 projecting inward part of slot needs when mounted by sliding shoe 13, by being pressed into sliding groove 12, to be in this way inserted into fixed link 6
Into the slot of fixed block 7, after fixed link 6 is pierced by fixed block 7, sliding shoe 13 can protrude one under the action of 14 elastic force of spring
Part can play additional protective effect in this way, can prevent after bolt 11 fails, and fixed link 6 is sliding out of fixed block 7 hole
It falls.
As shown in Figures 2 and 3, due to remaining certain contact, spherical triangle between spherical triangle block 4 and box 5
Block 4 and box 5 can inevitably be worn, and after abrasion, the hole drilled out on the one hand can be caused not square enough, on the other hand damage square auger of carpenter
The service life of machine, so need to be lubricated between spherical triangle block 4 and box 5, therefore in box 5 close to box 5
Inside has opened up oil groove 15, and the oil groove 15 inside box 5 can be used for placing lubricating oil, reduces spherical triangle block 4 in 5 turns of box
The degree of wear during dynamic, improves the service life of carpenter's square hole electric hand drill, while being further opened on box 5 and leading to oil groove
15 oil filler point 16, the oil filler point 16 opened up on box 5 can lube oil injection in the oil groove 15 more easily into box 5,
Preferably, oil filler point 16 has been opened up in 5 side of box, while in the flexible blocking 17 of 16 grafting of oil filler point, 16 interpolation of oil filler point
The elasticity connect, which blocks 17, can block oil filler point 16, prevent some foreign matters from being entered in oil groove 15 by oil filler point 16, dirty
Lubricating oil is contaminated, while blocking 17 in elasticity and one end far from oil filler point 16 is provided with knob 18, setting knob 18 can make to beat
It is more laborsaving to open elasticity blocking 17, is easy to open elasticity and blocks 17 progress lube oil injections；5 top of box, which is additionally provided with, simultaneously takes aim at
Traversing head 19 is arranged in quasi- camera lens 19, can be aimed in drilling, keep the square hole drilled out more accurate.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
- Include flashlight body of drill (1) and drill bit (2) 1. a kind of carpenter's square hole electric hand drill, it is characterized in that：The flashlight body of drill (1) output end is fixed with Hooks coupling universal coupling (3), and the output end of the Hooks coupling universal coupling (3) is fixed with spherical triangle block (4), The shape of the spherical triangle block (4) is Lay Lip river triangle curve, is provided with and spherical triangle block outside the spherical triangle block (4) (4) matched box (5), the box (5) are fixedly connected with fixed link (6), are fixed on the flashlight body of drill (1) solid Determine block (7), is dismantling connection between the fixed link (6) and fixed block (7), first is further fixed on the spherical triangle block (4) Screw shell (8), the first screw shell (8) internal thread are connected with drill bit (2).
- 2. a kind of carpenter's square hole electric hand drill according to claim 1, it is characterised in that：It is set outside drill bit (2) drillstock It is equipped with the shaft shoulder (9), the outside of the shaft shoulder (9) and the first screw shell (8) is socketed with the second screw shell (10), and described second Screw shell (10) is connected with the outer wall thread of the first screw shell (8).
- 3. a kind of carpenter's square hole electric hand drill according to claim 1, it is characterised in that：The dismantling connection uses bolt (11) mode connected.
- 4. a kind of carpenter's square hole electric hand drill according to claim 1, it is characterised in that：It is offered in the fixed link (6) Sliding groove (12), the interior sliding of the sliding groove (12) are connected with sliding shoe (13), the sliding shoe (13) and sliding groove (12) slot It is connected with spring (14) between bottom.
- 5. a kind of carpenter's square hole electric hand drill according to claim 1, it is characterised in that：The box (5) is close to box (5) internal to offer oil groove (15).
- 6. to remove a kind of carpenter's square hole electric hand drill described in 5 according to right, it is characterised in that：It is further opened on the box (5) Lead to the oil filler point (16) of oil groove (15).
- 7. a kind of carpenter's square hole electric hand drill according to claim 6, which is characterized in that the oil filler point (16) is plugged with bullet Property block (17).
- 8. a kind of carpenter's square hole electric hand drill according to claim 8, which is characterized in that the elasticity blocks (17) separate One end of oil filler point (16) is provided with knob (18).
- 9. a kind of carpenter's square hole electric hand drill according to claim 1, which is characterized in that also set up above the box (5) There is traversing head (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412472.6A CN108568867A (en) | 2018-05-03 | 2018-05-03 | A kind of carpenter's square hole electric hand drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810412472.6A CN108568867A (en) | 2018-05-03 | 2018-05-03 | A kind of carpenter's square hole electric hand drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108568867A true CN108568867A (en) | 2018-09-25 |
Family
ID=63575503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810412472.6A Withdrawn CN108568867A (en) | 2018-05-03 | 2018-05-03 | A kind of carpenter's square hole electric hand drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108568867A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112454545A (en) * | 2020-12-16 | 2021-03-09 | 杭州鎏金庐亮空间设计有限公司 | Drilling equipment used in wood processing process |
| CN112518551A (en) * | 2020-12-01 | 2021-03-19 | 上海征世科技有限公司 | Diamond surface polygon polishing device |
| CN115157929A (en) * | 2022-08-05 | 2022-10-11 | 中国科学院力学研究所 | A non-pneumatic tire with self-recovery multi-level cross-frame structure |
| CN117644233A (en) * | 2024-01-29 | 2024-03-05 | 江苏海博工具产业研究院有限公司 | Cemented carbide forming milling cutter for processing square hole groove |
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| US5538370A (en) * | 1994-04-01 | 1996-07-23 | Glenn; David R. | Device for drilling a square hole |
| JPH11267950A (en) * | 1998-03-20 | 1999-10-05 | Tokai Univ | Square drilling machine |
| CN2635304Y (en) * | 2003-07-15 | 2004-08-25 | 纪宁 | Carpenter square hole drilling device |
| CN2873375Y (en) * | 2006-01-23 | 2007-02-28 | 刘其生 | Adjustable hand electric drill head position limiter |
| CN200974136Y (en) * | 2006-12-11 | 2007-11-14 | 上海建设路桥机械设备有限公司 | Square auger and square aperture processing device |
| CN101926671A (en) * | 2010-09-30 | 2010-12-29 | 重庆润泽医疗器械有限公司 | Locking equipment for drill and drill |
| CN102039438A (en) * | 2010-08-31 | 2011-05-04 | 成都春江科技有限公司 | Spinning-type hand drill bit substrate |
| CN203900972U (en) * | 2014-06-16 | 2014-10-29 | 高宇峰 | Drill bit locking structure |
| CN105598502A (en) * | 2016-03-24 | 2016-05-25 | 丁睿健 | Device for forming square hole |
| CN106424833A (en) * | 2016-11-21 | 2017-02-22 | 马文强 | Square hole drilling machine |
| CN107695399A (en) * | 2017-11-22 | 2018-02-16 | 常州市宝珂精密工具有限公司 | A kind of four edge spiral cutters |
| CN207103907U (en) * | 2017-06-22 | 2018-03-16 | 温州博远工业设计有限公司 | One kind is harnessed the river well lid hand-held drilling machine |
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|---|---|---|---|---|
| CN2079542U (en) * | 1990-12-14 | 1991-06-26 | 吴丹 | Multipurpose drilling machine driven by electric-and man-power |
| US5538370A (en) * | 1994-04-01 | 1996-07-23 | Glenn; David R. | Device for drilling a square hole |
| JPH11267950A (en) * | 1998-03-20 | 1999-10-05 | Tokai Univ | Square drilling machine |
| CN2635304Y (en) * | 2003-07-15 | 2004-08-25 | 纪宁 | Carpenter square hole drilling device |
| CN2873375Y (en) * | 2006-01-23 | 2007-02-28 | 刘其生 | Adjustable hand electric drill head position limiter |
| CN200974136Y (en) * | 2006-12-11 | 2007-11-14 | 上海建设路桥机械设备有限公司 | Square auger and square aperture processing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112518551A (en) * | 2020-12-01 | 2021-03-19 | 上海征世科技有限公司 | Diamond surface polygon polishing device |
| CN112454545A (en) * | 2020-12-16 | 2021-03-09 | 杭州鎏金庐亮空间设计有限公司 | Drilling equipment used in wood processing process |
| CN112454545B (en) * | 2020-12-16 | 2022-04-29 | 杭州鎏金庐亮空间设计有限公司 | Drilling equipment used in wood processing process |
| CN115157929A (en) * | 2022-08-05 | 2022-10-11 | 中国科学院力学研究所 | A non-pneumatic tire with self-recovery multi-level cross-frame structure |
| CN115157929B (en) * | 2022-08-05 | 2023-09-19 | 中国科学院力学研究所 | Non-pneumatic tire with automatically recovered multistage cross skeleton structure |
| CN117644233A (en) * | 2024-01-29 | 2024-03-05 | 江苏海博工具产业研究院有限公司 | Cemented carbide forming milling cutter for processing square hole groove |
| CN117644233B (en) * | 2024-01-29 | 2024-04-23 | 江苏海博工具产业研究院有限公司 | Cemented carbide forming milling cutter for processing square hole groove |
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Application publication date: 20180925 |
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