CN108927675A - A kind of hardware clamp for machining easy to remove - Google Patents
A kind of hardware clamp for machining easy to remove Download PDFInfo
- Publication number
- CN108927675A CN108927675A CN201810717838.0A CN201810717838A CN108927675A CN 108927675 A CN108927675 A CN 108927675A CN 201810717838 A CN201810717838 A CN 201810717838A CN 108927675 A CN108927675 A CN 108927675A
- Authority
- CN
- China
- Prior art keywords
- cavity
- shaking tray
- wall
- mounting base
- hole
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a kind of hardware clamp for machining easy to remove, including base plate, the bottom of the base plate is fixedly installed with mounting base, and the lower section of mounting base is equipped with transverse slat, the bottom of the mounting base is opened up there are two first sliding groove, and the first sliding rail being fixedly mounted with transverse slat top is slidably connected in first sliding groove, the side of the mounting base is equipped with shaking tray, the first cavity is offered in the mounting base, and first cavity far from being rotatably equipped with horizontal axis on the side inner wall of shaking tray, horizontal axis is extended to outside mounting base close to one end of shaking tray and is fixedly mounted with shaking tray, first cavity is far from being rotatably equipped with gear on the side inner wall of shaking tray, and the fixed suit in the outside of gear and horizontal axis.The configuration of the present invention is simple, can root and actual needs the lengthwise position of base plate is adjusted, the hardware apparatus of different in width can be coped with, convenient for hardware apparatus process when use.
Description
Technical field
The present invention relates to clamp for machining technical fields, more particularly to a kind of hardware clamp for machining easy to remove.
Background technique
Hardware clamp for machining is the fixture clamped when processing to hardware apparatus to hardware apparatus, hardware tool
Classification is extensive, such as hardware components, haberdashery and hardware, architectural hardware, numerical control part, milling cutter, hole knife and security protection articles, tradition
Hardware apparatus mostly use manpower is dynamic to fix greatly in processing, it is not only dangerous in this way and inconvenient when being processed to hardware apparatus
In movement, when as needed to bore multiple holes on hardware tool, artificial disassembly repeatedly is needed to pacify when carrying out bore operation to hardware apparatus
Dress drills to hardware apparatus, time-consuming and laborious, therefore occurs a kind of hardware clamp for machining easy to remove in the market.
It is retrieved Authorization Notice No. CN207171544U and discloses a kind of hardware clamp for machining easy to remove, including pedestal
Plate and fixture, several track grooves are provided on base plate, and track groove is internally provided with several sliding blocks, passes through link block above sliding block
It is connected with fixture, setting is fluted in the middle part of fixture, and fixture one end is provided with the bolt inside connection fixture, and beneficial effect is: this
Hardware clamp for machining accurately mobile fixture can that the material processed is needed to be moved to processing work by being provided with graduated scale
Tool lower section can turn bolt by the way that rotation is twisted, so that material be fixed, pass through rotation due to being provided with the fillet of screw on bolt
Turn nut to fix bolt, moved freely on track groove by base slider, select suitable Working position, so that when processing
It is more convenient so that people do not have in process in manual fixed material, avoid in processing due to fixed material by
The case where machining tool is accidentally injured, ensure that processing staff in process more safety significantly.
Above-mentioned technology still has certain deficiency, and above-mentioned technique center only realizes transverse shifting, in actual use,
To hardware apparatus carry out bore operation in, various hardware apparatus it is of different size, need personnel dismantle or made in side with gasket
It needs the equipment drill bit when position that drills and processing to be on same vertical axis, time-consuming and laborious, is not easy to needing to bore
The hardware apparatus in hole is longitudinally finely adjusted, and we have proposed a kind of hardware clamp for machining easy to remove thus.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and the hardware that the one kind proposed is easy to remove
Clamp for machining.
To achieve the goals above, present invention employs following technical solutions:
A kind of hardware clamp for machining easy to remove, including base plate, the bottom of the base plate are fixedly installed with installation
Seat, and the lower section of mounting base is equipped with transverse slat, the bottom of the mounting base is opened up there are two first sliding groove, and sliding in first sliding groove
The first sliding rail for being connected with and being fixedly mounted at the top of transverse slat, the side of the mounting base are equipped with shaking tray, open up in the mounting base
There is the first cavity, and the first cavity, far from horizontal axis is rotatably equipped on the side inner wall of shaking tray, horizontal axis prolongs close to one end of shaking tray
It extends to outside mounting base and is fixedly mounted with shaking tray；
First cavity is far from being rotatably equipped with gear on the side inner wall of shaking tray, and the outside of gear and horizontal axis is fixed
It is set with, is fixedly installed with rack gear at the top of the transverse slat, and extended in the first cavity at the top of rack gear, the rack and pinion
It is meshed, first cavity is equipped with the second cavity being provided in mounting base far from the side of shaking tray, and the horizontal axis is separate to be shaken
One end of disk offers tapped through hole, and tapped through hole internal screw thread is connected with screw rod, and the screw rod extends far from one end of shaking tray
In to the second cavity and be fixedly installed with vertical bar, the top and bottom end of the vertical bar respectively with the top inner wall of the second cavity and bottom
Portion's inner wall is slidably installed.
Preferably, the top and bottom end of the vertical bar offer second sliding slot, the top inner wall of the second cavity and bottom
The second sliding rail is fixedly installed on inner wall, and the second sliding rail is slidably connected with corresponding second sliding slot.
Preferably, first cavity offers the first round through-hole on the side inner wall of shaking tray, and first is round
Fixing sleeve is equipped with first bearing, the fixed suit of the inner ring of first bearing and the outside of horizontal axis in through-hole.
Preferably, the fixed peace in side of the gear far from shaking tray turns have circular ring type sliding rail, and slides on circular ring type sliding rail
It is connected with and is provided with the second cavity far from the circular ring type sliding slot on the inner wall of shaking tray side.
Preferably, the gear close to the side of shaking tray be equipped with the second round through-hole, and the side wall of the second round through-hole with
The fixed suit in the outside of horizontal axis.
Preferably, second cavity offers the round through-hole of third, and third on the side inner wall of the first cavity
The side wall of round through-hole is not contacted with the outside of screw rod.
Preferably, square type hole, and the two sides inner wall and rack gear in square type hole are offered in the bottom interior wall of first cavity
Two sides do not contact.
Compared with prior art, the beneficial effects of the present invention are:
Pass through base plate, mounting base, transverse slat, first sliding groove, the first sliding rail, the first cavity, shaking tray, horizontal axis, gear, tooth
Item, the second cavity, tapped through hole, screw rod, vertical bar, circular ring type sliding rail and the second sliding rail, rotate shaking tray, and shaking tray is driven by horizontal axis
Gear rotation, gear drives circular ring type sliding rail to rotate in circular ring type sliding slot, before gear rotates on rack gear and drives mounting base
After move, mounting base drives base plate to be moved forward and backward, and mounting base also drives first sliding groove to slide on corresponding first sliding rail,
Under the action of tapped through hole, second sliding slot and the second sliding rail, horizontal axis rotation can drive screw rod mobile to the direction far from shaking tray, spiral shell
Bar drives second sliding slot to slide on corresponding second sliding rail by vertical bar, and when being moved to designated position, stop operating shaking tray,
Screw rod limits horizontal axis by tapped through hole at this time, and horizontal axis limits gear, so as to prevent base plate appearance in processing
Sliding, can root and actual needs the lengthwise position of base plate is adjusted, can cope with different in width hardware use
Tool, use when convenient for being processed to hardware apparatus.
The configuration of the present invention is simple, can root and actual needs the lengthwise position of base plate is adjusted, can answer
Use to the hardware apparatus of different in width, when convenient for being processed to hardware apparatus.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one kind proposed by the present invention hardware clamp for machining easy to remove；
Fig. 2 is the schematic cross-sectional view of one kind proposed by the present invention hardware clamp for machining easy to remove；
Fig. 3 is that gear, horizontal axis, screw rod and the vertical bar of one kind proposed by the present invention hardware clamp for machining easy to remove connect
The schematic perspective view of part.
In figure: 1 base plate, 2 mounting bases, 3 transverse slats, 4 first sliding grooves, 5 first sliding rails, 6 first cavitys, 7 shaking trays, 8 horizontal axis,
9 gears, 10 rack gears, 11 second cavitys, 12 tapped through holes, 13 screw rods, 14 vertical bars, 15 circular ring type sliding rails, 16 circular ring type sliding slots, 17
Second sliding rail.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of hardware clamp for machining easy to remove, including base plate 1, the fixed peace in the bottom of base plate 1
Equipped with mounting base 2, and the lower section of mounting base 2 is equipped with transverse slat 3, and the bottom of mounting base 2 is opened up there are two first sliding groove 4, and first
The side of the first sliding rail 5 for slidably connecting in sliding slot 4 and being fixedly mounted at the top of transverse slat 3, mounting base 2 is equipped with shaking tray 7, mounting base
The first cavity 6 is offered on 2, and the first cavity 6, far from horizontal axis 8 is rotatably equipped on the side inner wall of shaking tray 7, horizontal axis 8 is close
One end of shaking tray 7 extends to outside mounting base 2 and is fixedly mounted with shaking tray 7, and the first cavity 6 is far from the side inner wall of shaking tray 7 turns
Dynamic to be equipped with gear 9, and the fixed suit in the outside of gear 9 and horizontal axis 8, the top of transverse slat 3 is fixedly installed with rack gear 10, and rack gear
10 top extends in the first cavity 6, and rack gear 10 is meshed with gear 9, and the first cavity 6 is equipped with far from the side of shaking tray 7 and opens
The second cavity 11 being located in mounting base 2, horizontal axis 8 offer tapped through hole 12 far from one end of shaking tray 7, and in tapped through hole 12
It is threaded with screw rod 13, screw rod 13 extends in the second cavity 11 far from one end of shaking tray 7 and be fixedly installed with vertical bar 14, erects
The top and bottom end of bar 14 are slidably installed with the top inner wall of the second cavity 11 and bottom interior wall respectively, pass through base plate 1, installation
Seat 2, transverse slat 3, first sliding groove 4, the first sliding rail 5, the first cavity 6, shaking tray 7, horizontal axis 8, gear 9, rack gear 10, the second cavity 11,
Tapped through hole 12, screw rod 13, vertical bar 14, circular ring type sliding rail 15 and the second sliding rail 17, rotate shaking tray 7, and shaking tray 7 passes through 8 band of horizontal axis
Moving gear 9 rotates, and gear 9 drives circular ring type sliding rail 15 to rotate in circular ring type sliding slot 16, and gear 9 rotates on the rack gear 10 and band
Dynamic mounting base 2 is moved forward and backward, and mounting base 2 drives base plate 1 to be moved forward and backward, and mounting base 2 also drives first sliding groove 4 corresponding the
It is slided on one sliding rail 5, under the action of tapped through hole 12, second sliding slot and the second sliding rail 17, the rotation of horizontal axis 8 can drive screw rod 13
Mobile to the direction far from shaking tray 7, screw rod 8 drives second sliding slot to slide on corresponding second sliding rail 17 by vertical bar 14, when
When being moved to designated position, stop operating shaking tray 7, and screw rod 13 limits horizontal axis 8 by tapped through hole 12 at this time, and horizontal axis 8 is to tooth
9 limitation of wheel, so as to prevent base plate 1 from sliding in processing, can root and actual needs to longitudinal position of base plate 1
It sets and is adjusted, the hardware apparatus of different in width can be coped with, use when convenient for being processed to hardware apparatus, knot of the present invention
Structure is simple, can root and actual needs the lengthwise position of base plate 1 is adjusted, the hardware of different in width can be coped with
Apparatus, use when convenient for being processed to hardware apparatus.
In the present invention, the top and bottom end of vertical bar 14 offer second sliding slot, the top inner wall of the second cavity 11 and bottom
The second sliding rail 17 is fixedly installed on portion's inner wall, and the second sliding rail 17 is slidably connected with corresponding second sliding slot, the first cavity 6
The first round through-hole is offered on the side inner wall of shaking tray 7, and fixing sleeve is equipped with first bearing in the first round through-hole, the
The fixed suit of the inner ring of one bearing and the outside of horizontal axis 8, the fixed peace in side of the gear 9 far from shaking tray 7 turn have circular ring type sliding rail 15,
And it is slidably connected on circular ring type sliding rail 15 and is provided with the second cavity 6 far from the circular ring type sliding slot 16 on 7 side inner wall of shaking tray, tooth
Wheel 9 is equipped with the second round through-hole, and the fixed suit in the outside of the side wall of the second round through-hole and horizontal axis 8 close to the side of shaking tray 7,
Second cavity 11 offers the round through-hole of third on the side inner wall of the first cavity 6, and the side wall of the round through-hole of third with
The outside of screw rod 13 does not contact, and square type hole, and the two sides inner wall and rack gear in square type hole are offered in the bottom interior wall of the first cavity 6
10 two sides do not contact, by base plate 1, mounting base 2, transverse slat 3, first sliding groove 4, the first sliding rail 5, the first cavity 6, shaking tray 7,
Horizontal axis 8, gear 9, rack gear 10, the second cavity 11, tapped through hole 12, screw rod 13, vertical bar 14, circular ring type sliding rail 15 and the second sliding rail
17, shaking tray 7 is rotated, shaking tray 7 is rotated by horizontal axis 8 with moving gear 9, and gear 9 drives circular ring type sliding rail 15 in circular ring type sliding slot 16
Interior rotation, gear 9 rotate on the rack gear 10 and mounting base 2 are driven to be moved forward and backward, and mounting base 2 drives base plate 1 to be moved forward and backward, peace
Dress seat 2 also drives first sliding groove 4 to slide on corresponding first sliding rail 5, in tapped through hole 12, second sliding slot and the second sliding rail 17
Under the action of, horizontal axis 8, which rotates, can drive screw rod 13 mobile to the direction far from shaking tray 7, and screw rod 8 is sliding by the drive of vertical bar 14 second
Slot slides on corresponding second sliding rail 17, and when being moved to designated position, stop operating shaking tray 7, and screw rod 13 passes through spiral shell at this time
Line through-hole 12 limits horizontal axis 8, and horizontal axis 8 limits gear 9, can so as to prevent base plate 1 from sliding in processing
Root and actual needs the lengthwise position of base plate 1 is adjusted, the hardware apparatus of different in width can be coped with, convenient for pair
Hardware apparatus process when use, the configuration of the present invention is simple, can root and actual needs the lengthwise position of base plate 1 is adjusted
Section, can cope with the hardware apparatus of different in width, use when convenient for processing to hardware apparatus.
Working principle: in use, rotation shaking tray 7, shaking tray 7 drive horizontal axis 8 to rotate, horizontal axis 8 is rotated with moving gear 9, gear 9
Circular ring type sliding rail 15 is driven to rotate in circular ring type sliding slot 16, under the action of rack gear 10, gear 9 rotates on the rack gear 10 and band
Dynamic mounting base 2 is moved forward and backward, and mounting base 2 drives base plate 1 to be moved forward and backward, while mounting base 2 drives first sliding groove 4 corresponding
It is slided on first sliding rail 5, under the action of tapped through hole 12, second sliding slot and the second sliding rail 17, the rotation of horizontal axis 8 drives screw rod 13
Mobile to the direction far from shaking tray 7, screw rod 8 drives second sliding slot to slide on corresponding second sliding rail 17 by vertical bar 14, when
When being moved to designated position, stop operating shaking tray 7, and screw rod 13 limits horizontal axis 8 by tapped through hole 12 at this time, and horizontal axis 8 is to tooth
9 limitation of wheel, so as to prevent base plate 1 from sliding in processing, can root and actual needs to longitudinal position of base plate 1
It sets and is adjusted, use when convenient for being processed to hardware apparatus.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of hardware clamp for machining easy to remove, including base plate (1), which is characterized in that the bottom of the base plate (1)
It is fixedly installed with mounting base (2), and the lower section of mounting base (2) is equipped with transverse slat (3), the bottom of the mounting base (2) offers two
A first sliding groove (4), and the first sliding rail (5) with fixed installation at the top of transverse slat (3), institute are slidably connected in first sliding groove (4)
The side for stating mounting base (2) is equipped with shaking tray (7), offers the first cavity (6) on the mounting base (2), and the first cavity (6) is remote
It is rotatably equipped on side inner wall from shaking tray (7) horizontal axis (8), horizontal axis (8) extends to mounting base close to the one end of shaking tray (7)
(2) it is fixedly mounted outside and with shaking tray (7)；
It is rotatably equipped with gear (9) on the side inner wall of first cavity (6) separate shaking tray (7), and gear (9) and horizontal axis
(8) outside is fixed to be set with, and is fixedly installed with rack gear (10) at the top of the transverse slat (3), and extend at the top of rack gear (10)
In first cavity (6), the rack gear (10) is meshed with gear (9), and first cavity (6) sets far from the side of shaking tray (7)
There is the second cavity (11) being provided on mounting base (2), the horizontal axis (8) offers tapped through hole far from the one end of shaking tray (7)
(12), and tapped through hole (12) internal screw thread is connected with screw rod (13), and the screw rod (13) extends to the far from the one end of shaking tray (7)
In two cavitys (11) and be fixedly installed with vertical bar (14), the top and bottom end of the vertical bar (14) respectively with the second cavity (11)
Top inner wall and bottom interior wall are slidably installed.
2. one kind according to claim 1 hardware clamp for machining easy to remove, which is characterized in that the vertical bar (14)
Top and bottom end offer second sliding slot, are fixedly installed with second in the top inner wall and bottom interior wall of the second cavity (11)
Sliding rail (17), and the second sliding rail (17) is slidably connected with corresponding second sliding slot.
3. one kind according to claim 1 hardware clamp for machining easy to remove, which is characterized in that first cavity
(6) the first round through-hole is offered on the side inner wall of shaking tray (7), and fixing sleeve is equipped with first axle in the first round through-hole
It holds, the fixed suit of the inner ring of first bearing and the outside of horizontal axis (8).
4. one kind according to claim 1 hardware clamp for machining easy to remove, which is characterized in that the gear (9) is remote
The fixed peace in side from shaking tray (7) turns to have circular ring type sliding rail (15), and slidably connects on circular ring type sliding rail (15) and be provided with the
Two cavitys (6) are far from the circular ring type sliding slot (16) on the inner wall of shaking tray (7) side.
5. one kind according to claim 1 hardware clamp for machining easy to remove, which is characterized in that the gear (9) is leaned on
The side of nearly shaking tray (7) is equipped with the second round through-hole, and the fixed suit in the outside of the side wall of the second round through-hole and horizontal axis (8).
6. one kind according to claim 1 hardware clamp for machining easy to remove, which is characterized in that second cavity
(11) the round through-hole of third, and the side wall and screw rod of the round through-hole of third are offered on the side inner wall of the first cavity (6)
(13) outside does not contact.
7. one kind according to claim 1 hardware clamp for machining easy to remove, which is characterized in that first cavity
(6) square type hole is offered in bottom interior wall, and the two sides inner wall in square type hole is not contacted with the two sides of rack gear (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717838.0A CN108927675A (en) | 2018-07-03 | 2018-07-03 | A kind of hardware clamp for machining easy to remove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717838.0A CN108927675A (en) | 2018-07-03 | 2018-07-03 | A kind of hardware clamp for machining easy to remove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108927675A true CN108927675A (en) | 2018-12-04 |
Family
ID=64446816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717838.0A Pending CN108927675A (en) | 2018-07-03 | 2018-07-03 | A kind of hardware clamp for machining easy to remove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108927675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112656566A (en) * | 2021-01-29 | 2021-04-16 | 萍乡卫生职业学院 | Traction device for orthopedic nursing |
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|---|---|---|---|---|
| KR20110026097A (en) * | 2009-09-07 | 2011-03-15 | 염명희 | Automatic tool exchange device using lack and pinion gear |
| CN204277496U (en) * | 2014-10-30 | 2015-04-22 | 桐乡市金承电子有限公司 | A kind of euphroe foot piece clamp for machining |
| CN104607980A (en) * | 2015-02-06 | 2015-05-13 | 苏州西岩机械技术有限公司 | High-precision synchronization self-alignment engine-driven clamp |
| CN205520606U (en) * | 2016-03-07 | 2016-08-31 | 温岭市澳龙源机械制造有限公司 | Pneumatic machine vise |
| CN106312703A (en) * | 2016-08-31 | 2017-01-11 | 张家港市华扬冶金机械有限公司 | Simple metal tube polishing equipment |
| CN206779966U (en) * | 2017-06-19 | 2017-12-22 | 北方民族大学 | A kind of clamping device |
| CN207205884U (en) * | 2017-08-09 | 2018-04-10 | 武钢集团昆明钢铁股份有限公司 | A kind of grip device for fixed plate sample |
-
2018
- 2018-07-03 CN CN201810717838.0A patent/CN108927675A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110026097A (en) * | 2009-09-07 | 2011-03-15 | 염명희 | Automatic tool exchange device using lack and pinion gear |
| CN204277496U (en) * | 2014-10-30 | 2015-04-22 | 桐乡市金承电子有限公司 | A kind of euphroe foot piece clamp for machining |
| CN104607980A (en) * | 2015-02-06 | 2015-05-13 | 苏州西岩机械技术有限公司 | High-precision synchronization self-alignment engine-driven clamp |
| CN205520606U (en) * | 2016-03-07 | 2016-08-31 | 温岭市澳龙源机械制造有限公司 | Pneumatic machine vise |
| CN106312703A (en) * | 2016-08-31 | 2017-01-11 | 张家港市华扬冶金机械有限公司 | Simple metal tube polishing equipment |
| CN206779966U (en) * | 2017-06-19 | 2017-12-22 | 北方民族大学 | A kind of clamping device |
| CN207205884U (en) * | 2017-08-09 | 2018-04-10 | 武钢集团昆明钢铁股份有限公司 | A kind of grip device for fixed plate sample |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112656566A (en) * | 2021-01-29 | 2021-04-16 | 萍乡卫生职业学院 | Traction device for orthopedic nursing |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181204 |
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