CN105864251B - Expanding anchor - Google Patents
Expanding anchor Download PDFInfo
- Publication number
- CN105864251B CN105864251B CN201610381072.4A CN201610381072A CN105864251B CN 105864251 B CN105864251 B CN 105864251B CN 201610381072 A CN201610381072 A CN 201610381072A CN 105864251 B CN105864251 B CN 105864251B
- Authority
- CN
- China
- Prior art keywords
- disc spring
- spring
- hanger bolt
- spire
- anchor
- 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.)
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Links
- 238000005336 cracking Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/065—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting the screw, nail or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Springs (AREA)
Abstract
Expanding anchor, comprising：Disc spring, the disc spring carry the spire being embedded into the hanger bolt pin thread groove；And spring incorporating section, the incorporating section are located at the front of the anchor nut compared with the negative thread groove, can store the disc spring；The disc spring includes：The one end stretched out in a manner of parallel to the spire axis and the other end stretched out along spire periphery tangent line；The one end of the disc spring is sticked in slit in a manner of it can move in the axial direction, perisporium of the slit chisel located at the spring incorporating section.The invention has the advantages that：When vibration passes to anchor nut from building, it can reliably prevent the hanger bolt for being fastened to the nut from loosening, and hanger bolt can easily load anchor nut.
Description
Technical field
The present invention relates to field of fixation devices, and in particular to expanding anchor.
Background technology
It is well known that there is a kind of expanding anchor, it inserts the tubular anchor with extension part with defined depth
Enter to chisel in the preformed hole of concrete, cone is pressed into the extension part of tubular anchor by beaing etc., so that
Extension part is convex to be expanded, and is absorbed in the perisporium of the preformed hole of concrete, and in the presence of chock, resistance puts on tubular anchor
Tensile force.
Tubular anchor, by the insertion of the cone, extension part can be expanded, therefore such change in shape can produce shadow
Ring, so that the internal diameter increase of the negative thread groove of tubular anchor, the hanger bolt being screwed into tubular anchor is screwed into chimeric meeting
Fluff, and it is shorter for the negative thread length of hanger bolt twist-on, therefore when vibration passes to tubular anchor from building, be screwed into
It may loosen to the hanger bolt in the negative thread of tubular anchor and be come off from anchor, so as to which successfully spiral shell can not will be hung
Bolt twist-on is first-class to tubular anchor.
The content of the invention
It is an object of the invention to provide expanding anchor, and it completes on the basis of above mentioned problem is considered, can made
Hanger bolt is successfully fastened to the anchor being fixed on the building of concrete etc., so as to reliably prevent hanger bolt because of length
Phase is vibrated or external force etc. and loose or dislocation, and the processing for preventing from coming off is less, and makes and be relatively easy to.
The present invention is achieved through the following technical solutions.
Expanding anchor, it has：Anchor nut, the nut are tubular, in inner peripheral surface formed with female threaded portion,
Bottom side is provided with multiple cracking grooves and forms the extension part that can be expanded；Hanger bolt, the bolt carry and are fastened to the lower margin spiral shell
The pin thread groove of female negative thread groove；And cone, the cone are inserted into the extension part, comprising disc spring, the disc spring carries
The spire being embedded into the hanger bolt pin thread groove, and spring incorporating section, the incorporating section and the negative thread groove phase
Than positioned at the front of the anchor nut, the disc spring can be stored, the disc spring includes, with parallel to the spire axis
Mode and the one end stretched out and the other end stretched out along spire periphery tangent line, described the one of the disc spring
End is sticked in slit in a manner of it can move in the axial direction, and slit chisel is located at the perisporium of the spring incorporating section, institute
It is prominent to the opening outputed on the perisporium under contactless state to state described the other end of disc spring, the spiral shell of the disc spring
Rotation portion is close contact in the pin thread groove of the hanger bolt to prevent to be fastened to the hanger bolt court of the anchor nut
Off-direction rotation.Therefore it can reliably prevent to be fastened to the hanger bolt of the anchor nut because vibration etc. is from building
Thing passes to the anchor nut and loose or dislocation.
Preferably, described the other end of the disc spring to the opening it is prominent when, be along the spire periphery
The off-direction of tangent line towards the hanger bolt is stretched out, and the front end of described the other end be located at the periphery of the anchor nut with
It is interior.Therefore by making the hanger bolt be rotated towards off-direction, the disc spring can be pulled and be reversed, the disc spring it is described
The front end of the other end can be with the contacts side surfaces of the opening, and whereby, the disc spring expands outwardly, can be with being close contact in the positive spiral shell
The spire of groove separates gap, makes friction disappearance or reduction etc., so as to be freely rotatable, become the hanger bolt
Pine and protect the pin thread groove of the hanger bolt, and can without barrier from the anchor nut depart from.
Preferably, it has anti-shedding mechanism, for preventing the disc spring from the spring receiving room out.Therefore
When the anchor nut is embedded in building, even if the one end of disc spring card in a manner of it can be axially moveable
Together in the slit, the disc spring will not also come out from the anchor nut.
Compared with prior art：When vibration passes to anchor nut from building, can reliably prevent from being fastened to the nut
Hanger bolt loosen, and hanger bolt can easily load anchor nut.
Brief description of the drawings
Fig. 1 is the stereogram of the 1st embodiment of the expanding anchor of the present invention.
Fig. 2 is the profile of the 1st embodiment of the expanding anchor of the present invention.
Fig. 3 is the present invention along Fig. 2 line A-A and the profile that is formed.
Fig. 4 is the major part profile of the 2nd embodiment of the expanding anchor of the present invention.
Fig. 5 is the major part side view of the 2nd embodiment of the expanding anchor of the present invention.
The expanding anchor of symbol description 1,2 anchor nuts, 2a perisporiums, 2b bottoms, 2c leading sections, 21 cloudy spiral shells
Groove, 22 cracking grooves, 23 extension parts, 24 spring incorporating sections, 25 slits, 25a insert mouths, 26 openings, 27 anti-dropout machines
Structure, 28 caulking parts, 3 cones, 4 hanger bolts, 41 pin thread grooves, 5 disc springs, 51 spires, 52 one ends, 53 is another
One end, 54 lateral ends portions, 55 bending sections, 6 preformed holes, B buildings, C crooked positions, the disengaging of R hanger bolts
Direction, the extended line of L cracking grooves, the processing starting point of P negative thread grooves.
Embodiment
Below in conjunction with the accompanying drawings with embodiment, the present invention is described further.
The 1st embodiment of the present invention illustrates according to Fig. 1 and Fig. 3.Fig. 1 is an implementation of expanding anchor
Example, symbol 1 is expanding anchor, and it is embedded in the building B of concrete etc..
Expanding anchor 1 has an anchor nut 2, the perisporium 2a of its tubular inner peripheral surface formed with negative thread groove 21,
Multiple cracking grooves 22 are provided with bottom 2b sides and form the extension part 23 that can be opened and closed；Cone 3, it is inserted into the extension part
In 23；And hanger bolt 4, it carries the pin thread groove 41 for being fastened to the negative thread groove 21.
Symbol 5 is the disc spring being made up of the equal spire 51 of helix spacing, and the spire 51 of the disc spring 5 wraps
Containing the one end 52 stretched out to the bottom 2b sides of the anchor nut 2 and along the disc spring 5 the spire 51 it is outer
The other end 53 that all tangent lines stretch out to the off-direction R of the hanger bolt 4.
The disc spring 5 is arranged on the spring incorporating section formed on the perisporium 2a of the anchor nut 2 inner peripheral surface
In 24, the incorporating section is located at the leading section 2c sides of the anchor nut 2 compared with the negative thread groove 21.
The chisel of slit 25 that the one end 52 of the disc spring 5 is engaged is used between the extended line L-L of a pair of cracking grooves 22
Decline in preventing the intensity of described tubular anchor nut 2.Received in addition, the cut-in length of the slit 25 is greater than the spring
Receive the depth in portion 24.
The one end 52 of the disc spring 5 card in a manner of the spire 51 of the disc spring 5 can be axially moveable
Together in the slit 25.In order that the one end 52 of the disc spring 5 is smoothly inserted into the slit 25, described narrow
The front of seam 25 is stretched to from the spire 51 of the disc spring 5 whereby formed with insert mouth 25a more broader than slit opening width
The crooked position C of one end will not have an impact.
The opening 26 relative with the slit 25 is outputed on the perisporium 2a, in the opening 26, the other end 53 is non-
Stretched under contact condition along the off-direction R of periphery tangent line towards the hanger bolt 4 of the spire 51 of the disc spring 5
Go out, and the front end of described the other end is located within the periphery of the anchor nut 2.
Symbol 27 is the anti-shedding mechanism that the disc spring 5 for preventing from being located in the spring receiving room 24 comes out, its
It is made up of the caulking part 28 for the leading section 2c for being located at the anchor nut 2, even if the one end 52 of the disc spring 5
The slit 25 is sticked in a manner of it can be axially moveable, when the anchor nut 2 is embedded to the building B, the disk
Spring 5 will not also come out from the spring incorporating section 24.
In the embodiment, with described the other end 53 of the disc spring 5 and the negative thread of the anchor nut 2
The mode that the processing starting point P of groove 21 is consistent configures the disc spring 5 in the spring incorporating section 24, spiral described whereby
Portion 51 turns into continuous spiral with the negative thread groove 21, so as to successfully carry out the twist-on of the hanger bolt 4.
On the configuration status of the disc spring 5, space, the spiral shell are left between the spire 51 and the perisporium 2a
Rotation portion 51 can outwards be expanded by the space.Whereby can be with being close contact in the pin thread groove 41 of the hanger bolt 4
The spire 51 separates gap.In addition, even in leaving sky between the spire 51 and the perisporium 2a of the disc spring 5
Between, if making the length of the negative thread groove 21 of the anchor nut 2 more than the pitch number of the spire 51 of the disc spring 5,
Then one can be carried out with the twist-on of the pin thread groove 41 of hanger bolt 4 by the negative thread groove 21 of the anchor nut 2
Change.By the space, when the hanger bolt 4 is fastened to the anchor nut 2, the hanger bolt 4, which will not be shaken, to make a sound.
On the use of the embodiment with above structure, as shown in figure 1, the cone 3 is inserted into the lower margin
Fixed temporarily in the bottom 2b of nut 2, and across driver（It is not shown）Deng using lower margin described in hammer
Nut 2, so as to which the anchor nut 2 is driven into the preformed hole 6, while the cone 3 is driven into described expand
In portion 23, cracking groove 22 described whereby opens, and the extension part 23 opens, so as to fixed in the building B.
Then, disc spring is inserted from the leading section 2c of the anchor nut 2, makes its configuration in the spring incorporating section 23
It is interior, caulking part 28 is formed in the leading section 2c of the anchor nut 2, so as to prevent the disc spring 5 from being stored from the spring
In portion 24 out.
If the hanger bolt 4 is fastened to be configured with the spring incorporating section 24 disc spring 5 describedly
Pin nut 2, and start for the pin thread groove 41 of the hanger bolt 4 to be fastened to the spire 51 of the disc spring 5, then
The one end 52 of the disc spring 5 can be axially moveable in the slit 25, so as to be adjusted to the spiral shell of the spire 51
Pitch away from the pin thread groove 41 with the hanger bolt 4 is consistent, while in the spring incorporating section 24, embedded in institute
The spire 51 of the disc spring 5 in the pin thread groove 41 of hanger bolt 4 is stated so that the one end 52 is fulcrum and
Expand outwardly, so that the frictional force of the helix of the disc spring 5 contacted with the pin thread groove 41 of the hanger bolt 4
Reduce.Revolved if making the hanger bolt 4 relative to the negative thread groove 21 of the anchor nut 2 along twist-on direction
Turn, then the pin thread groove 41 of the hanger bolt 4 will be screwed into the negative thread groove 21 of the anchor nut 2
In.
The spire 51 for being fastened to the disc spring 5 of the hanger bolt 4 is embedded in the institute of the hanger bolt 4
State in pin thread groove 41, and the axis center of hanger bolt 4 is pressed towards by the elastic force of the helix of the spire 51.So
Afterwards, as the hanger bolt 4 rotates towards twist-on direction, the spire 51 will be close contact in the described of the hanger bolt 4
Pin thread groove 41, whereby, even if the disc spring 5 is pulled and reversed, due to described the other end 53 of the disc spring 5 be along
The off-direction R of the periphery tangent line of the spire 51 towards the hanger bolt 4 stretches out, therefore the disc spring 5 is described another
The front end of end 53 will not abut against with the side of the opening 26, will so as to the pin thread groove 41 of the hanger bolt 4
Successfully it is fastened to the negative thread groove 21 of the anchor nut 2.
In addition, the vibration even if from the building portion B passes and makes the hanger bolt 4 relative to the lower margin
The negative thread groove 21 of nut 2 rotates along off-direction R, in the spring incorporating section 24, with the disc spring 5 by described one
End 52 as fulcrum and along internal diameter direction shrink mode, the helix of the spire 51 of the disc spring 5 be stretched and
The pin thread groove 41 of the hanger bolt 4 is fastened, so as to effectively prevent from loosening.Turn into accordingly, with respect to the disc spring 5
The hanger bolt 4 of one, in the part of the spire 51 of the disc spring 5, rotation is prevented from, so as to loosen.
It is described with the rotation if making hanger bolt 4 rotate to off-direction R and depart from from the anchor nut 2
The spire 51 of disc spring 5 can be close contact in the pin thread groove 41 of the hanger bolt 4, increase frictional force and prevent rotation
Turn, but if being rotated with the power of the rotation above, then can be pulled by the rotation of the hanger bolt 4, the disc spring 5
And reverse, the front end of described the other end 53 of the disc spring 5 can be with the contacts side surfaces of the opening 26, disc spring 5 described whereby
It can expand outwardly, rub disappearance or reduction etc., so as to be freely rotatable, the hanger bolt 4 is fluffed and protect described
The pin thread groove 41 of hanger bolt 4, and easily can depart from from the anchor nut 2.
However, according to different situations, the power that the hanger bolt 4 rotates to off-direction is set to become too much, load meeting
The slit 25 that the one end 52 is engaged intensively is put on, thus damaged or deformation occurs in the slit 25, and
And the deformations such as damaged or stretching occur in the one end 52, so as to sometimes from the slit 25 of the spring incorporating section 24
Depart from and release engaging.
Then, the 2nd embodiment is illustrated according to Fig. 4 and Fig. 5.In the embodiment, with the 1st embodiment phase
Same composition will enclose identical symbol and illustrate.
In the 2nd embodiment, in the perisporium 2a of the anchor nut 2 illustrated by the 1st embodiment
Disc spring 51 is set in the spring incorporating section 24 formed on side face.
The disc spring 5 include the equal spire 51 of spiral spacer, the spire 51 outer fix with parallel to
The axial mode of the spire 51 and the lateral ends portion 54 that bends and the spire 51 along the disc spring 5
The other end 52 that the off-direction of periphery tangent line towards the hanger bolt 4 is stretched out.
The lateral ends portion 54 of the disc spring 5 by can along the spire 51 axial movement in a manner of be sticked in it
Cut-in length is more than the slit 24 of the depth of spring incorporating section 24.
It is used to prevent what the disc spring 5 from coming out from the spring receiving room 24 in addition, being provided with the 2nd embodiment
Anti-shedding mechanism 7, and bending section 55 is provided with the lateral ends portion 54, connect by the medial surface flexibly with the slit 25
Tactile and caused friction, the disc spring 5 are not easy from the spring receiving room 23 out.
Described the other end 53 of the disc spring 5 as the 1st embodiment, outputed on the perisporium 2a with it is described
Disengaging of the periphery tangent line of the spire 51 of the relative opening 26 of slit 25 along the disc spring 5 towards the hanger bolt 4
Direction is stretched out, prominent to the opening 26 under contactless state.The front end of described the other end 53 of the disc spring 5 is located at institute
Within the periphery for stating anchor nut 2, the free end of the disc spring 5 is set to.
In the expanding anchor with above structure, the spire 51 of the disc spring 5 is made by then passing through
It is close contact in the pin thread groove 41 of the hanger bolt 4 and prevents to be fastened to the institute of the anchor nut 2 using frictional force
State hanger bolt 4 to rotate towards off-direction, therefore can reliably prevent to be fastened to the hanger bolt of the anchor nut 2
4 because vibration etc. from the building B passes to the anchor nut 2 and loose or dislocation, and is configured at the hanger bolt 4
The disc spring 5 can be easily screwed into the pin thread 41 of the hanger bolt 4.
In addition, the disc spring 5 makes the one end 52,54 stretched out in a manner of parallel to the axis of spire 51
The slit for digging and setting on the perisporium 2a of the spring incorporating section 24 is sticked in a manner of it can only move in the axial direction
25, so if the hanger bolt 4 to be inserted into the lower margin that the disc spring 5 is configured with the spring receiving room 24
Nut 2 and the pin thread groove 41 of the hanger bolt 4 is fastened to the spire 51 of the disc spring 5, then the disk
The one end 52,54 of spring 5 can be axially moveable in the slit 25, so as to can be adjusted to the pitch of the spire 51
It is consistent with the pitch of the pin thread groove 41 of the hanger bolt 4.
Described the other end 52,54 of the disc spring 5 is the periphery tangent line court along the spire 51 of the disc spring 5
The off-direction R of the hanger bolt 4 stretches out and within the periphery of the anchor nut 2, therefore by the hanging spiral shell
Bolt 4 from the anchor nut 2 remove when, by making the hanger bolt 4 be rotated towards off-direction R, the disc spring 5 pulled
And reverse, the front end of described the other end 53 of the disc spring 5 with it is described opening 25 contacts side surfaces, disc spring 5 described whereby to
Outer expansion, gap can be separated with the spire 51 for the pin thread groove 41 for being close contact in the hanger bolt 4, friction is disappeared
Mistake or reduction etc., so as to be freely rotatable, make the hanger bolt 4 fluff, protect the pin thread of the hanger bolt 4
Groove 41, and can depart from without barrier from the anchor nut 2.
As for prevent the disc spring 5 from the spring incorporating section 24 out anti-shedding mechanism 27, described
The leading section 2c of pin nut 2 forms the caulking part 28, or the one end in the disc spring being inserted into the slit
54 set bending section 54b, and friction is produced to be kept by flexibly being contacted with the medial surface of the slit 24, whereby,
Even in the slit 25, the one end 52 of the disc spring 5 moves in the axial direction, and also can reliably prevent the disc spring 5
From the spring incorporating section 24 out.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (3)
1. expanding anchor, it has：Anchor nut, the nut is tubular, in inner peripheral surface formed with female threaded portion, the bottom of at
Portion side is provided with multiple cracking grooves and forms the extension part that can be expanded；Hanger bolt, the bolt carry and are fastened to the anchor nut
The pin thread groove of negative thread groove；And cone, the cone are inserted into the extension part；Characterized in that, comprising：Disc spring,
The disc spring carries the spire being embedded into the hanger bolt pin thread groove；And spring incorporating section, the incorporating section with it is described
Negative thread groove is compared positioned at the front of the anchor nut, can store the disc spring；The disc spring includes：With parallel to described
The mode of spire axis and the one end stretched out and the other end stretched out along spire periphery tangent line；The disk
The one end of spring is sticked in slit in a manner of it can move in the axial direction, and slit chisel is located at the spring incorporating section
Perisporium, described the other end of the disc spring is prominent to the opening outputed on the perisporium under contactless state, the disk
The spire of spring is close contact in the pin thread groove of the hanger bolt to prevent to be fastened to described in the anchor nut
Hanger bolt rotates towards off-direction.
2. expanding anchor according to claim 1, it is characterised in that described the other end of wherein described disc spring
To the opening it is prominent when, be that off-direction along spire periphery tangent line towards the hanger bolt is stretched out, and described
The front end of the other end is located within the periphery of the anchor nut.
3. expanding anchor according to claim 1 or 2, it is characterised in that it has anti-shedding mechanism, for preventing
Only the disc spring comes out from the spring receiving room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381072.4A CN105864251B (en) | 2016-06-01 | 2016-06-01 | Expanding anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381072.4A CN105864251B (en) | 2016-06-01 | 2016-06-01 | Expanding anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864251A CN105864251A (en) | 2016-08-17 |
| CN105864251B true CN105864251B (en) | 2017-12-08 |
Family
ID=56676163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610381072.4A Active CN105864251B (en) | 2016-06-01 | 2016-06-01 | Expanding anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864251B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3089579B1 (en) * | 2018-12-07 | 2021-07-09 | Addup | SLOTTED NUT FOR SELECTIVE ADDITIVE MANUFACTURING EQUIPMENT |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842254A (en) * | 1971-10-01 | 1973-06-20 | ||
| SU1027314A1 (en) * | 1982-01-25 | 1983-07-07 | Gulyaev Vitalij V | Apparatus for cementing construction seams |
| JPH06230244A (en) * | 1992-12-28 | 1994-08-19 | Bt & D Technol Ltd | Optical connector |
| CN104271967A (en) * | 2012-04-27 | 2015-01-07 | 株式会社Khi | Drop-out prevention tool |
| CN205841414U (en) * | 2016-06-01 | 2016-12-28 | 宁波天辉机械有限公司 | Expanding anchor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2005121570A1 (en) * | 2004-06-07 | 2008-04-10 | 泰治郎 添田 | Fall-off prevention device and locking nut |
| US20110176887A1 (en) * | 2010-01-21 | 2011-07-21 | Im Young Woo | Saferlock nut |
-
2016
- 2016-06-01 CN CN201610381072.4A patent/CN105864251B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842254A (en) * | 1971-10-01 | 1973-06-20 | ||
| SU1027314A1 (en) * | 1982-01-25 | 1983-07-07 | Gulyaev Vitalij V | Apparatus for cementing construction seams |
| JPH06230244A (en) * | 1992-12-28 | 1994-08-19 | Bt & D Technol Ltd | Optical connector |
| CN104271967A (en) * | 2012-04-27 | 2015-01-07 | 株式会社Khi | Drop-out prevention tool |
| CN205841414U (en) * | 2016-06-01 | 2016-12-28 | 宁波天辉机械有限公司 | Expanding anchor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864251A (en) | 2016-08-17 |
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Address after: No. 12, Hongxi Industrial Park, Chunhu Town, Fenghua District, Ningbo City, Zhejiang Province Patentee after: Ningbo Tianhui Machine Co., Ltd. Address before: Kaohsiung Beilun District 315801 in Zhejiang province Ningbo City No. 362 Ni Qiao Cun Patentee before: Ningbo Tianhui Machine Co., Ltd. |