CN106041150B - A kind of outer mandrel that rises with multiple support zones - Google Patents
A kind of outer mandrel that rises with multiple support zones Download PDFInfo
- Publication number
- CN106041150B CN106041150B CN201610575775.0A CN201610575775A CN106041150B CN 106041150 B CN106041150 B CN 106041150B CN 201610575775 A CN201610575775 A CN 201610575775A CN 106041150 B CN106041150 B CN 106041150B
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- China
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- mandrel
- frustum
- sliding block
- wall
- slideway
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/404—Gripping the work or tool by jaws moving radially controlled by conical surfaces
Abstract
The present invention provides a kind of outer mandrel that rises with multiple support zones, including mandrel, be equipped with vertically on the mandrel outer wall can outwards swell first outside portion and second of rising rise portion outside, by being axially arranged with the supporting part to rise outside two, the endoporus of workpiece is one in front and one in back supported in axial direction, the positioning of workpiece is more firm, more preferable turning quality can be obtained in turning, and supporting way one in front and one in back is when workpiece reverses end for end clamping, preferable repeated clamping concentricity can be obtained, this outer core shaft structure that rises is simple, and positioning accuracy is high, service life length.
Description
Technical field
The present invention relates to mandrel, more particularly to a kind of outer mandrel that rises with multiple support zones of rising outside one kind.
Background technology
In the process of shell type component, when the shape of parts is irregular shape, or parts is outer
Portion for cast form or forging and molding blank surface when, it is impossible to directly using the outer surface of parts as positioning and clamping face, greatly
Need to carry out positioning and clamping in the form of supportting endoporus when most, using this kind of frock folder of the outer mandrel that rises when generally supportting endoporus
Tool.
However, when the length of shell type component is longer, by rise outside mandrel a certain section support can there are clamping to determine
The unstable situation in position, and many times clamping power is also inadequate, may cause when subsequent mechanical is processed workpiece loosen or
Person moves, and causes work pieces process to scrap, also be easy to cause phenomena such as trembling of cutter in mechanical processing process, be unfavorable for forming conjunction
The mechanical processing cutting surface of lattice.
The content of the invention
The technical problem to be solved in the present invention is：For outer the rising of single hop support when solving longer shell type component clamping
The situation of mandrel clamping shakiness, rises by mandrel to solve the above problems the present invention provides a kind of outer with multiple support zones.
The technical solution adopted by the present invention to solve the technical problems is：A kind of outer core that rises with multiple support zones
Axis, including mandrel, be equipped with vertically on the mandrel outer wall can outwards swell first outside portion and second of rising rise outside portion.
Further：Portion of rising outside described first includes ringfeder and tensioner screw；
The right end of the mandrel is equipped with the first frustum, and the shape of first frustum is gradually tapered up by outside diameter from left to right
Taper, the right side of first frustum are equipped with threaded hole；
The endoporus of the ringfeder is taper, and the shape of the outer cone wall of the inner hole wall of ringfeder and the first frustum is engaged；Institute
State on ringfeder, if in axial direction offering arterial highway dilatation joint respectively by left side and right side；
The tensioner screw is equipped with locking screw and compresses step vertically, and the diameter dimension for compressing step is less than described rise
The outer diameter of set；The right side for compressing step be equipped be used to screwing tensioner screw tighten portion；The locking screw
Connected with the threaded hole of first frustum, the compression step is fitted on the right side of the ringfeder.
Further：On the inner hole wall of the ringfeder, it is equipped with the right side of the nearly ringfeder raised radially inward
Lug boss；On the outer wall of tensioner screw, between the right side of the lug boss and the first frustum be equipped with radially to
The baffle ring of outer lug.
Further：Portion of rising outside described second includes sliding block and pull rod；
The pilot hole coaxial with first frustum is equipped with the mandrel, the left side of the pilot hole and mandrel connects
It is logical；In the connecting shaft, slideway of the glide direction along pilot hole radial direction is equipped with the nearly mandrel left side, the slideway connects
The hole wall of logical pilot hole and the outer wall of mandrel；
The pull rod is equipped with connection bar portion, the second frustum and is oriented to bar portion, the shape of second frustum successively vertically
To be turned left the taper that outside diameter gradually tapers up by the right side, the connection bar portion connect with the left end of the second frustum, the guiding bar portion with
The right end connection of second frustum；The guiding bar portion and pilot hole clearance fit, the guide rod are inserted into pilot hole；In mandrel
Axial direction on, the position of second frustum and the position correspondence of the slideway；
The sliding block is arranged in the slideway and can be slided along the glide direction of slideway；The sliding block has sliding block week
Wall, sliding block upper wall and sliding block lower wall, the shape of the sliding block perisporium and the inner wall shape of the slideway are engaged, on the sliding block
Wall is cylindrical arc, and the shape of the sliding block lower wall is engaged with the shape of second frustum.
Further：Offer annular groove on the upper wall of the sliding block and the outer wall of mandrel, hoop in the annular groove
There is flexible holding circle.
Further：The holding circle is rubber ring or spring ring.
Further：The portion of tightening is indent or the polygon of evagination.
Further：The quantity of the slideway has more than two, and corresponding sliding block is equipped with the slideway；The slideway
Along the circumferentially disposed of mandrel.
Further：The mandrel it is cylindrical on, be equipped with the left side of the slideway and be used to connect with lathe
Flange；Positioning groove is equipped with the left surface of the flange, the positioning groove and first frustum are coaxial.
The invention has the advantages that a kind of outer mandrel that rises with multiple support zones of the present invention is by being axially arranged with
The supporting parts to rise outside two, the endoporus of workpiece are one in front and one in back supported in axial direction, the positioning of workpiece is more firm, can in turning
More preferable turning quality is obtained, and supporting way one in front and one in back can obtain preferable repetition when workpiece reverses end for end clamping
Clamping concentricity, this outer core shaft structure that rises is simple, and positioning accuracy is high, service life length.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structure diagram of the outer mandrel optimum embodiment that rises with multiple support zones of the present invention；
Fig. 2 is the structure diagram of mandrel；
Fig. 3 is the structure diagram of ringfeder；
Fig. 4 is the structure diagram of tensioner screw；
Fig. 5 is the structure diagram of pull rod；
Fig. 6 is the appearance schematic diagram of sliding block.
1, mandrel in figure, 2, ringfeder, 3, tensioner screw, 4, pull rod, 5, sliding block, 6, flange, 7, positioning groove, 8, keep
Circle, the 11, first frustum, 12, threaded hole, 13, slideway, 14, pilot hole, 21, dilatation joint, 22, lug boss, 31, locking screw,
32nd, step is compressed, 33, baffle ring, 41, be oriented to bar portion, the 42, second frustum, 43, reach bar portion, 51, annular groove, 52, sliding block upper wall,
53rd, sliding block perisporium, 54, lower wall.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.On the contrary, this
The embodiment of invention includes falling into all changes in the range of the spirit and intension of attached claims, modification and equivalent
Thing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " axial direction ",
The orientation or position relationship of the instructions such as " radial direction ", " circumferential direction " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are only used for description purpose, and it is not intended that indicating or implying relatively important
Property.In the description of the present invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connected ", " connection " should
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be that machinery connects
Connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary.For the common of this area
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.In addition, in description of the invention
In, unless otherwise indicated, " multiple " are meant that two or more.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used for realization specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic at the same time in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
As depicted in figs. 1 and 2, the present invention provides a kind of outer mandrel that rises with multiple support zones, including mandrel 1,
Be equipped with vertically on the mandrel 1 outer wall can outwards swell first outside portion and second of rising rise portion outside.
Portion of rising outside described first includes ringfeder 2 and tensioner screw 3；The right end of the mandrel 1 is equipped with the first frustum 11, described
The shape of first frustum 11 is the taper gradually tapered up by outside diameter from left to right, and the right side of first frustum 11 is equipped with screw thread
Hole 12；As shown in figure 3, the endoporus of the ringfeder 2 is taper, the shape of the outer cone wall of the inner hole wall of ringfeder 2 and the first frustum 11
It is engaged；On the ringfeder 2, if in axial direction offering arterial highway dilatation joint 21 respectively by left side and right side.
As shown in figure 4, the tensioner screw 3 is equipped with locking screw 31 and compresses step 32 vertically, step 32 is compressed
Diameter dimension is less than the outer diameter of the ringfeder 2；The right side for compressing step 32, which is equipped with, to be used to screw tensioner screw 3
Tighten portion；The threaded hole 12 of the locking screw 31 and first frustum 11 connects, and the compression step 32 is fitted in institute
On the right side for stating ringfeder 2.
On the inner hole wall of the ringfeder 2, lug boss raised radially inward is equipped with the right side of the nearly ringfeder 2
22；On the outer wall of tensioner screw 3, it is equipped with radially between the right side of 22 and first frustum 11 of lug boss
Raised baffle ring 33.
Portion of rising outside described second includes sliding block 5 and pull rod 4；It is equipped with the mandrel 1 coaxial with first frustum 11
Pilot hole 14, the left side of the pilot hole 14 and mandrel 1 is connected；In the connecting shaft, at nearly 1 left side of mandrel
Slideway 13 equipped with glide direction along 14 radial direction of pilot hole, the slideway 13 connect the hole wall of pilot hole 14 and the outer wall of mandrel 1.
As shown in figure 5, the pull rod 4 is equipped with connection bar portion 43, the second frustum 42 and is oriented to bar portion 41, institute successively vertically
The shape for stating the second frustum 42 is the taper gradually tapered up by right outside diameter of turning left, a left side for connection 43 and second frustum 42 of bar portion
End connection, the guiding bar portion 41 are connected with the right end of the second frustum 42；Guiding 14 clearance fit of bar portion 41 and pilot hole,
In the guide rod insertion pilot hole 14；On the axial direction of mandrel 1, the position of second frustum 42 and the slideway 13
Position correspondence.
As shown in fig. 6, the sliding block 5 is arranged in the slideway 13 and can be slided along the glide direction of slideway 13；It is described
Sliding block 5 has sliding block perisporium 53, sliding block upper wall 52 and a sliding block lower wall 54, the shape of the sliding block perisporium 53 and the slideway 13
Inner wall shape is engaged, and the sliding block upper wall 52 is cylindrical arc, the shape of the sliding block lower wall 54 and second frustum 42
Shape be engaged.
The outer mandrel that rises includes position of rising outside two, and one is portion of rising outside 2 and first frustum 11 of ringfeder coordinates first, separately
One is portion of rising outside 5 and second frustum 42 of sliding block coordinates second；Two positions of rising outside, set gradually, work as processing in the axial direction
When needing the longer housing of some length of clamping, former and later two outer outside swells in position that rise, one in front and one in back support shell at the same time
The endoporus of body, such installation way can improve the clamping rigidity of housing so that and housing can more be stablized in processing, when
When needing turn-over clamping, the support of multi-point positioning and clamping enables to the precision of the repeated clamping of turn-over processing to improve, can also
Greatly improve the concentricity of turn-over clamping workpiece.
The conical surface of 2 and first frustum 11 of ringfeder is fitted to each other, can be by spanner by tensioner screw 3 when needing swell
Screw inside, the compression step 32 of tensioner screw 3 can be bonded ringfeder 2, will push ringfeder 2 toward transporting on the conical surface of the first frustum 11
Dynamic, ringfeder 2 is externally provided with some dilatation joints 21, when as ringfeder 2 is to moving on the first frustum 11, the increase of 21 width of dilatation joint,
The outside diameter of ringfeder 2 can also increase therewith, reach the effect to rise outside, and then can support the housing being sleeved on ringfeder 2.Work as needs
During contraction, tensioner screw 3 can be unscrewed outward by spanner, the baffle ring 33 on tensioner screw 3, which can push lug boss 22, to rise
Set is 2 extrapolated toward the first frustum 11, as the inner hole cone emaciated face of ringfeder 2 opens the male cone (strobilus masculinus) of the first frustum 11, the ringfeder 2 due to
The effect of internal stress, outside diameter are shunk, and the width of dilatation joint 21 and the size of outside diameter will then revert to state when rising outer before,
The state when outside diameter of ringfeder 2 recovers to outer rise, effect disappearance of rising outer at this time, ringfeder 2 is to being sleeved on the branch of housing above
Support event resolves.
The conical surface of the second frustum 42 on sliding block lower wall 54 and pull rod 4 is fitted to each other, and pull rod 4 is inserted in the hole of pilot hole 14
Bottom, and pull rod 4 can axially slide in pilot hole 14, and when needing to carry out swell operation, pull rod 4 is pulled outwardly
Go out, because the second frustum 42 and sliding block lower wall 54, with contact is merged, the sliding block lower wall 54 for the cooperation that is in contact with the second frustum 42 will
It can outwards be ejected by the second frustum 42, the effect to rise outside can be reached, and then the housing being sleeved on sliding block 5 can be supported.When
When needing the contraction of sliding block 5, pull rod 4 can be promoted into pilot hole 14, the second frustum 42 and sliding block lower wall 54 will disengage, sliding block
5 can be along 13 slid inward of slideway so that sliding block 5 no longer has the state to rise outside.
Annular groove 51 is offered on the upper wall of the sliding block 5 and the outer wall of mandrel 1, hoop has tool in the annular groove 51
It is flexible to keep circle 8.
The holding circle 8 that hoop can rise mandrel fixed sliding block 5 when be also not loaded into the endoporus of workpiece outside, prevent
Limited slip block 5 is skidded off from slideway 13.It is described that to keep circle 8 be rubber ring or spring ring, select it is such to keep enclosing 8 costs relatively low,
And elasticity is preferably, can be more advantageous to reset of the sliding block 5 in slideway 13.
The portion of tightening is indent or the polygon of evagination.The polygon for tightening portion's selection indent or evagination can be with
Suitable for current existing Wrench, the clamping that workpiece rises on mandrel outside is facilitated to operate.
The quantity of the slideway 13 has more than two, and corresponding sliding block 5 is equipped with the slideway 13；13 edge of slideway
Mandrel 1 it is circumferentially disposed.Multiple slideways 13 arrange that multiple sliding blocks 5 support, and can improve the effect of support so that the branch of sliding block 5
Support relatively reliable firm.
The mandrel 1 it is cylindrical on, be equipped with the left side of the slideway 13 and be used for the flange 6 that is connected with lathe；
Positioning groove 7 is equipped with the left surface of the flange 6, the positioning groove 7 and first frustum 11 are coaxial.
End face at the nearly flange 6 of mandrel 1 is equipped with positioning groove 7, rises by mandrel and when lathe is installed when outer, flange 6 and car
The installation end face paste of bed main shaft is closed, positioning in the positioning spigot of lathe spindle insertion positioning groove 7, then by by flange 6 and main
Axis is fixedly connected, and 7 and first frustum 11 of positioning groove is coaxial, it is ensured that the outer mandrel that rises is installed on the rotation of lathe when on lathe
Center and the outer central coaxial to rise for the mandrel that rises outside.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, to the schematic representation of the term not
Necessarily refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (7)
1. a kind of outer mandrel that rises with multiple support zones, including mandrel (1), outer wall is equipped with vertically on the mandrel (1)
Can outwards swell first outside rise and rise portion outside portion and second,
Portion of rising outside described first includes ringfeder (2) and tensioner screw (3)；
The right end of the mandrel (1) is equipped with the first frustum (11), the shape of first frustum (11) be by outside diameter from left to right by
The taper of contracting is tapered, the right side of first frustum (11) is equipped with threaded hole (12)；
The endoporus of the ringfeder (2) is taper, and the shape of the inner hole wall of ringfeder (2) and the outer cone wall of the first frustum (11) matches
Close；On the ringfeder (2), if in axial direction offering arterial highway dilatation joint (21) respectively by left side and right side；
The tensioner screw (3) is equipped with locking screw (31) and compresses step (32) vertically, compresses the diameter ruler of step (32)
The very little outer diameter less than the ringfeder (2)；The right side for compressing step (32), which is equipped with, to be used to screw tensioner screw (3)
Tighten portion；The threaded hole (12) of the locking screw (31) and first frustum (11) connects, the compression step (32)
It is fitted on the right side of the ringfeder (2),
It is characterized in that：On the inner hole wall of the ringfeder (2), it is equipped with radially inward at the right side of the nearly ringfeder (2)
Raised lug boss (22)；On the outer wall of tensioner screw (3), positioned at the lug boss (22) and the right end of the first frustum (11)
Radially raised baffle ring (33) is equipped between face.
A kind of 2. outer mandrel that rises with multiple support zones as claimed in claim 1, it is characterised in that：Outside described second
Portion of rising includes sliding block (5) and pull rod (4)；
The pilot hole (14) coaxial with first frustum (11), the pilot hole (14) and mandrel are equipped with the mandrel (1)
(1) left side is connected；On the mandrel (1), glide direction is equipped with nearly mandrel (1) left side along pilot hole (14)
The slideway (13) of radial direction, the hole wall of slideway (13) the connection pilot hole (14) and the outer wall of mandrel (1)；
The pull rod (4) is equipped with connection bar portion (43), the second frustum (42) and is oriented to bar portion (41) successively vertically, and described second
The shape of frustum (42) is a left side for the taper gradually tapered up by right outside diameter of turning left, the connection bar portion (43) and the second frustum (42)
End connection, the guiding bar portion (41) connect with the right end of the second frustum (42)；The guiding bar portion (41) and pilot hole (14)
Clearance fit, the guiding bar portion (41) are inserted into pilot hole (14)；On the axial direction of mandrel (1), second frustum
(42) position and the position correspondence of the slideway (13)；
The sliding block (5) is arranged in the slideway (13) and can be slided along the glide direction of slideway (13)；Sliding block (5) tool
There are sliding block perisporium (53), sliding block upper wall (52) and sliding block lower wall (54), the shape of the sliding block perisporium (53) and the slideway
(13) inner wall shape is engaged, and the sliding block upper wall (52) is cylindrical arc, the shape of the sliding block lower wall (54) with it is described
The shape of second frustum (42) is engaged.
A kind of 3. outer mandrel that rises with multiple support zones as claimed in claim 2, it is characterised in that：On the sliding block
Annular groove (51) is offered on the outer wall of wall (52) and mandrel (1), the interior hoop of the annular groove (51) has flexible holding
Enclose (8).
A kind of 4. outer mandrel that rises with multiple support zones as claimed in claim 3, it is characterised in that：It is described to keep circle
(8) it is rubber ring or spring ring.
A kind of 5. outer mandrel that rises with multiple support zones as claimed in claim 1, it is characterised in that：Described tightens portion
For indent or the polygon of evagination.
A kind of 6. outer mandrel that rises with multiple support zones as claimed in claim 2, it is characterised in that：The slideway (13)
Quantity there are more than two, is equipped with corresponding sliding block (5) in the slideway (13)；Week of the slideway (13) along mandrel (1)
To setting.
A kind of 7. outer mandrel that rises with multiple support zones as claimed in claim 2, it is characterised in that：In the mandrel
(1) on cylindrical, the flange (6) for being used for connecting with lathe is equipped with the left side of the slideway (13)；In the flange (6)
Left surface be equipped with positioning groove (7), the positioning groove (7) and first frustum (11) are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610575775.0A CN106041150B (en) | 2016-07-20 | 2016-07-20 | A kind of outer mandrel that rises with multiple support zones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610575775.0A CN106041150B (en) | 2016-07-20 | 2016-07-20 | A kind of outer mandrel that rises with multiple support zones |
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| Publication Number | Publication Date |
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| CN106041150A CN106041150A (en) | 2016-10-26 |
| CN106041150B true CN106041150B (en) | 2018-05-11 |
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| CN201610575775.0A Active CN106041150B (en) | 2016-07-20 | 2016-07-20 | A kind of outer mandrel that rises with multiple support zones |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984844B (en) * | 2017-04-17 | 2018-10-02 | 横店集团东磁股份有限公司 | A kind of modified ringfeder device |
| CN109277590B (en) * | 2018-10-08 | 2021-01-08 | 广州市昊志机电股份有限公司 | Mandrel clamp and mounting chuck |
| CN109707714B (en) * | 2019-01-16 | 2024-01-23 | 沈阳飞机工业（集团）有限公司 | Conical surface radial displacement tensioning device |
| CN111805277B (en) * | 2019-04-10 | 2022-08-09 | 安徽美芝制冷设备有限公司 | Work fixture |
| CN113400063B (en) * | 2021-05-30 | 2023-03-31 | 浙江双鸟起重设备有限公司 | Turning mold device for running motor shell of steel wire rope electric block |
| CN113369988B (en) * | 2021-06-25 | 2022-03-15 | 成都飞机工业（集团）有限责任公司 | Automatic alignment device and method for machine tool angle head |
| CN113775636A (en) * | 2021-08-27 | 2021-12-10 | 中国煤炭科工集团太原研究院有限公司 | Clearance compensation type pin shaft device and anchor rod drilling machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206104924U (en) * | 2016-07-20 | 2017-04-19 | 江苏腾旋科技股份有限公司 | Dabber rises outward with a plurality of support point |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069207A (en) * | 2011-01-09 | 2011-05-25 | 无锡银联机械有限公司 | Device capable of elastically clamping two ends of long hole |
| CN202291475U (en) * | 2011-09-30 | 2012-07-04 | 福安市力源电机有限公司 | Motor round shell processing fixture |
| CN102847969A (en) * | 2012-09-17 | 2013-01-02 | 江苏飞船股份有限公司 | Double-end core expansion type mandrel fixture |
| CN104858463A (en) * | 2014-02-23 | 2015-08-26 | 张鸿来 | Manual self-centering clamp for thin-walled part |
| CN105252032B (en) * | 2015-10-13 | 2017-11-21 | 永安市培鑫工贸有限公司 | A kind of valve body fixture |
| CN205380284U (en) * | 2016-01-20 | 2016-07-13 | 苏州工业职业技术学院 | Two -way car anchor clamps of child formula that rises |
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- 2016-07-20 CN CN201610575775.0A patent/CN106041150B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206104924U (en) * | 2016-07-20 | 2017-04-19 | 江苏腾旋科技股份有限公司 | Dabber rises outward with a plurality of support point |
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| CN106041150A (en) | 2016-10-26 |
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