CN106438654A - Reverse locking tight connecting piece capable of frontally mounting, connecting structure and connecting method - Google Patents
Reverse locking tight connecting piece capable of frontally mounting, connecting structure and connecting method Download PDFInfo
- Publication number
- CN106438654A CN106438654A CN201610819865.XA CN201610819865A CN106438654A CN 106438654 A CN106438654 A CN 106438654A CN 201610819865 A CN201610819865 A CN 201610819865A CN 106438654 A CN106438654 A CN 106438654A
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- China
- Prior art keywords
- screw rod
- connecting screw
- lock
- nut
- positioning table
- 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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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 27
- 230000000630 rising effect Effects 0.000 claims description 23
- 210000002421 cell wall Anatomy 0.000 claims description 22
- 239000007769 metal material Substances 0.000 claims description 15
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 14
- 210000001215 vagina Anatomy 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000007373 indentation Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000001174 ascending effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention provides a reverse locking tight connecting piece capable of frontally mounting. The reverse locking tight connecting piece capable of frontally mounting comprises a connecting screw rod, a nut, a positioning table, a first pressing spring and a reverse locking piece; the bottom end of the connecting screw rod is fixedly connected with the reverse locking piece; the connecting screw rod is provided with a positioning key and an ascending limiting part below a thread connecting section; the positioning table is provided with an ascending guide groove matched with the positioning key and a limiting part matched with the ascending limiting part; and a premounting positioning structure of the connecting screw rod is arranged between the positioning table and the connecting screw rod. The invention further provides a connecting structure and a connecting method using the reverse locking tight connecting piece. The reverse locking tight connecting piece is reliable in connection and simple in operation, and can be applied to quick mounting connection of cable brackets, pipe brackets, shelves and curtain walls in buildings, industries, high-speed rails and metros, in particular, in mounting connecting places with higher earthquake and looseness resisting requirements.
Description
Technical field
The present invention relates to one kind locks fastening connection piece, attachment structure and method of attachment in it is adaptable to building, industry, high ferro,
The cable support of subway, support of pipelines, shelf, the ready-package of curtain wall connect, and especially require higher peace in antidetonation, loosing prevention
Load connects occasion.
Background technology
Require higher installation to connect occasion in antidetonation, loosing prevention, at present only high ferro train power supply hanger system with
Pairs of anti-loose nut, and these pairs of anti-loose nut technology there is also shorter Manufacturing cost of locking time higher the problems such as, from making
China's high ferro development has been placed restrictions on valency.
Content of the invention
Present invention technical problem to be solved first provide a kind of can front install lock fastening connection piece in, can bear
Earthquake, train, the vibrations of industrial equipment, not by loosening lock, collect automatization's Fast Installation, and structure are simply inexpensive.
Locking in of front installation can be fastenedly connected assembly, including connecting screw rod, nut, connecting screw rod has and nut screw connection
Threaded section it is characterised in that：Described locking in is fastenedly connected assembly and also includes positioning table, the first stage clip and lock part in；
Described nut is in the top of positioning table, described connecting screw rod bottom be fixedly connected described in lock part in, described connecting screw rod is in spiral shell
The lower section of stricture of vagina linkage section has positioning key and lifting position-limit portion, and described positioning table is provided with the rising guiding being matched with positioning key
Groove and the limiting section being matched with lifting position-limit portion, are provided with the pre- of connecting screw rod and set between described positioning table and connecting screw rod
Bit architecture, described prepackage location structure includes the position portion in position portion and connecting screw rod on positioning table；Described first
Stage clip is between nut and positioning table, for lifting the molectron of connecting screw rod and nut, makes the position portion on positioning table
Can coordinate with the position portion in connecting screw rod；In the direction of rotation tightening nut, described rising gathering sill is in prepackage
Downstream at position location.
On the basis of using technique scheme, the present invention also can be using technical scheme further below or to these
Further solution pool uses：
Described locking in is fastenedly connected assembly and also includes the second torsion spring, described second torsion spring be in described positioning table and lock in part it
Between, when connecting screw rod is in prepackage position location, described second torsion spring is in energy storage state, and described second torsion spring is in release
During state, described connecting screw rod and lock part in and can be driven in rotation, the direction of rotation of its direction of rotation and nut screwing clamping is in the same direction.
Described connecting screw rod is 90 ° Zi prepackage position location to the rotational angle with the position rising gathering sill cooperation or connects
Nearly 90 °.
The described length dimension locking part in is more than lateral dimension, and the both sides of its upper surface have antiskid lock stricture of vagina.
The described length dimension locking part in is more than lateral dimension, and, the described main body locking part in is in that several diameters are consistent
The equidistant superposition of circle the many nodulars of arc section.
Described positioning table has anti-rotation structure to prevent positioning table own rotation.
Described second one end is connected in be locked the other end on part in and is connected on positioning table.
The side of rising gathering sill has rotation stop and hits plate or rotation stop collision block.
Surrounding's sheet material in the hole that the position portion on described positioning table passes through for connecting screw rod for positioning table be sheared and to
The sheet material end that lower stretching is formed, the described limiting section being matched with lifting position-limit portion, described connection are formed at the bottom of described end
The side being described positioning key with position portion on screw rod；Or, the position portion on described positioning table is for positioning table for even
Connect sheet material around the hole that screw rod passes through and be pulled upwardly the groove stretching formation, described and lifting position-limit portion is formed on the top of described groove
The limiting section matching, positioning key forms the position portion in described connecting screw rod simultaneously, and the upper end of positioning key forms described rising
Limiting section.
In described nut, setting can pin the spring coil of connecting screw rod；Described spring coil is fixed at the close top on nut
And around nut bore, described spring coil arranges resilient lock section, and using on the lock section and connecting screw rod of described elasticity with institute
Nut and connecting screw rod are pinned by the position cooperation stating lock section cooperation.
Described spring coil includes installing ring plate and is in the multiple flexure strips dug installed inside ring plate, described flexure strip
Form described lock section, the free end end of flexure strip be the lock end stuck up to nut in the hole and with connecting screw rod on lock section cooperation
Groove cooperation.
Described spring coil includes installing ring plate and is in many with what connecting screw rod screw thread tilted in the same direction inside installation ring plate
Section flexure strip, the angle of inclination of described flexure strip is different with lead angle, described flexure strip energy Snap joint screw flight groove
In and along being threaded into, described flexure strip forms described lock section, and the inner side edge of described flexure strip has lock tooth, described lock tooth and company
Connect the teeth groove engagement of screw flight trench bottom.
Described spring coil arranges the narrow width at the position of flexure strip, formed can deformation Spring beams.
Described spring coil includes installing ring plate and is in many with what connecting screw rod screw thread tilted in the same direction inside installation ring plate
Section flexure strip, the angle of inclination of described flexure strip is different with lead angle, and described flexure strip can snap in screw flight groove simultaneously
Along being threaded into, described flexure strip forms described lock section, the upper end of described flexure strip become lock end and with connecting screw rod on lock
The groove cooperation of portion's cooperation.
Groove in described connecting screw rod has the groove of oral area so that instrument can be passed through from described oral area and act on for upper end
In described lock end, it is unlocked.
The angle of inclination of described flexure strip is more than the lift angle of screw thread.
The end that described spring coil enters the position of thread groove is provided with the fillet importing thread groove.
Described nut has step near described nut bore upper end, and described spring coil includes installing ring plate, described installation
Ring plate is placed on described step, and so that it is shifted by extruding metal material, and makes to form cell wall on installation ring plate,
Described cell wall and step compression install ring plate retainer spring circle.
Outside the installation ring plate of described spring coil, there is breach, when so that it is shifted by extruding metal material and forming cell wall,
Also the metal material at mesa sidewall is made to transfer into the location structure that indentation, there forms circumference.
Nut bore upper end carries and is provided with, at the step of spring coil mounting ring piece, the sinking circle having a down dip for flexure strip.
Another technical problem to be solved of the present invention be provide a kind of using above-mentioned can front install lock fastening in
The attachment structure of coupling assembly.For this reason, the present invention employs the following technical solutions：
A kind of attachment structure is it is characterised in that it includes above-mentioned locking in of front installation being fastenedly connected assembly and be connected
Part, described connected piece has and the described elongated hole locking part adaptation in or groove, and described connected piece is stuck in positioning table and locks in
Between part, described positioning key is in rising gathering sill.
Further, the described length dimension locking part in is more than lateral dimension, and the both sides of its upper surface have antiskid lock stricture of vagina；
Described connected piece is being also provided with and is locking in by card position the antiskid lock stricture of vagina that the antiskid lock stricture of vagina of part matches.
Another technical problem to be solved of the present invention be provide a kind of using above-mentioned can front install lock fastening in
The method of attachment of coupling assembly.For this reason, the present invention employs the following technical solutions：
A kind of method of attachment is it is characterised in that it locking in of front installation can be fastenedly connected assembly and connected piece using above-mentioned
Connect, described connected piece has and the described elongated hole locking part adaptation in or groove, described elongated hole or elongated slot can be locked in for described
Part is put into from front and is stuck in the another side of elongated hole or groove after rotation；
Connect install before, described can front install lock in be fastenedly connected assembly connecting screw rod be in prepackage position location,
And under this configuration status, connector will be locked in put into from the front of connected piece described elongated hole or the groove of connected piece, and pass through
Down pressure nut or connecting screw rod, make described connecting screw rod sink and deviate to pre-install position location, connecting screw rod is driven in rotation
With rise gathering sill match, enter described rising gathering sill, rotate nut, make connecting screw rod along rise gathering sill rise and incite somebody to action
Connected piece is stuck in positioning table and locks between part.
Due to adopting technical scheme, the present invention connect reliable, simple to operate, can be used for building, industrial, high
Ferrum, the cable support of subway, support of pipelines, shelf, the ready-package of curtain wall connect, especially higher in antidetonation, loosing prevention requirement
Installation connect occasion.
Brief description
The schematic diagram of attachment structure embodiment 1 of the present invention when Fig. 1 is in prepackage position location for connecting screw rod.
Fig. 2 is in schematic diagram during connection status for attachment structure embodiment 1 of the present invention.
The upward view of the positioning table that Fig. 3 is adopted by the embodiment of the present invention 1,2 and 3.
Fig. 4 is the schematic diagram of attachment structure embodiment 2 of the present invention, and in the present embodiment, the present invention is applied to corner and connects
Part.
Fig. 5 is the schematic diagram of attachment structure embodiment 3 of the present invention, and in the present embodiment, the present invention is applied to bracket component
Connect.
Fig. 6 is the schematic diagram of attachment structure embodiment 4 of the present invention, and in the present embodiment, the present invention is applied to bracket component
Connect, but connected piece is different from implementing 3, wherein, adopt centring ring to position connecting screw rod.
Fig. 6 a is the schematic diagram of attachment structure embodiment 4 of the present invention, and in the present embodiment, the present invention is applied to bracket component
Connect, but connected piece is different from implementing 3, wherein, connecting screw rod is adopted with downward-sloping clamp positioning.
The top view of the connected piece that Fig. 7 is adopted by embodiment illustrated in fig. 6.
The top view of the positioning table that Fig. 8 is adopted by embodiment illustrated in fig. 6.
Fig. 9,10 be respectively the front view of the different directions of positioning table and side view shown in Fig. 8.
Figure 11 is the top view of another kind of connected piece.
Figure 12 is the front view of connector shown in Fig. 7.
Figure 13 is the schematic diagram locking part in.
Figure 14 locks the top view being fastenedly connected fastener embodiment 1 spring coil in assembly in for the present invention.
Figure 15 locks the top view being fastenedly connected the nut that fastener embodiment 1 in assembly installs spring coil in for the present invention.
Figure 16 locks the sectional view being fastenedly connected the nut that fastener embodiment 1 in assembly installs spring coil in for the present invention.
Figure 17 locks the top view after being fastenedly connected fastener embodiment 1 connecting screw rod in assembly in for the present invention.
Figure 18 locks the top view being fastenedly connected fastener embodiment 2 spring coil in assembly in for the present invention.
Figure 19 locks the top view being fastenedly connected the nut that fastener embodiment 2 in assembly installs spring coil in for the present invention.
Figure 20 locks the sectional view being fastenedly connected the nut that fastener embodiment 2 in assembly installs spring coil in for the present invention.
Figure 21 locks the top view after being fastenedly connected fastener embodiment 2 connecting screw rod in assembly in for the present invention.
Figure 22 locks the top view being fastenedly connected fastener embodiment 3 spring coil in assembly in for the present invention.
Figure 23 locks the top view being fastenedly connected the nut that fastener embodiment 3 in assembly installs spring coil in for the present invention.
Figure 24 locks the sectional view being fastenedly connected the nut that fastener embodiment 3 in assembly installs spring coil in for the present invention.
Figure 25 locks the top view after being fastenedly connected fastener embodiment 3 connecting screw rod in assembly in for the present invention.
Figure 26 locks the front view being fastenedly connected the connecting screw rod used by fastener embodiment 1,3 in assembly in for the present invention.
Figure 27 locks the attached view being fastenedly connected the connecting screw rod used by fastener embodiment 1,3 in assembly in for the present invention.
Figure 28 locks the front view being fastenedly connected the connecting screw rod used by fastener embodiment 2 in assembly in for the present invention.
Specific embodiment
Referring to the drawings 1,2,9.Provided by the present invention can front install lock in and be fastenedly connected assembly, including connecting screw rod
2nd, nut 1, connecting screw rod 2 has and the threadeding section of nut screw connection；Described locking in is fastenedly connected assembly and also includes positioning
Platform 4, the first stage clip 8, the second torsion spring 5 and lock part 6 in；Described nut 1 is in the top of positioning table 4, described connecting screw rod 2 bottom
Part 6 is locked in, described connecting screw rod 2 has positioning key 24 and limit for height balance step threaded section of lower section described in being fixedly connected
25, described positioning table 4 is provided with the rising gathering sill 41 being matched with positioning key 24 and balances, with limit for height, the limit that step matches
Position portion 43, is provided with the prepackage location structure of connecting screw rod 2, when in Practical Project between described positioning table 4 and connecting screw rod 2
Before being attached installing, connecting screw rod 2 is in prepackage position location, and prepackage location structure enables described connecting screw rod 2 relatively
Positioning table is maintained at prepackage position location and so that described second torsion spring 5 is tensioned, and described prepackage location structure is included on positioning table
Position portion and connecting screw rod on position portion；Described first stage clip 8 is between nut 1 and positioning table 4, for being lifted
Connecting screw rod 2 and the molectron of nut 1, enable the position portion in position portion and connecting screw rod on positioning table to coordinate；
Described second torsion spring 5 is in described positioning table 4 and locks between part 6 so that when described second torsion spring 5 is in release conditions, institute
State connecting screw rod 2 and lock part 6 in and can be driven in rotation, in the direction of rotation that connecting screw rod 2 is driven by the second torsion spring namely
In the direction of rotation of nut screwing clamping, the described gathering sill 41 that rises is in the downstream at prepackage position location.
Described second torsion spring 5 one end is connected in locks the other end on part 6 in and is connected on positioning table 4.
The described length dimension locking part 6 in is more than lateral dimension, and the both sides of its upper surface have antiskid lock stricture of vagina 61.Described
Anchor pole is provided with that to lock part shape in unrestricted, can be varied as desired in.But generally, its be one long than roomy elongated portion
Part.Locking part in can be solid member, lock part in and can be made by upsetting with connecting screw rod and be integrated；Lock part in and be alternatively plate punching press
Part, is combined with modes such as connecting screw rod welding, interference fit and completes.
Limit for height balance step 25 in described connecting screw rod and positioning key 24 are and connecting screw rod one can to lead to during fabrication
Cross upsetting and make and complete；Or or single part, interference fit, be connected in connecting screw rod.
Using above-mentioned can front install lock in be fastenedly connected assembly attachment structure include it include described in lock fastening in
Coupling assembly and connected piece 7, described connected piece 7 has and the described elongated hole locking part 6 adaptation in or groove 71, described is connected
Fitting 7 is stuck in positioning table 4 and locks between part 5, and described positioning key 24 is in rising gathering sill 41.
Described connected piece 7 is being also provided with and is locking in by card position the antiskid lock stricture of vagina 72 that the antiskid lock stricture of vagina of part matches.
Described positioning table 4 has anti-rotation structure to prevent positioning table own rotation.Such as, it can be provided with and connected piece
The anti-rotation positioning side 44 that 7 match.
First stage clip 8 preferentially adopts spring shim, and described first stage clip 8 can configure pad 80, and next adopts spring steel wire
Make
Position portion on positioning table is 90 degree of latch-up structures, can be the composition at the hole that positioning table passes through for connecting screw rod
The substrate metal plate of positioning table is washed into curved under inclination or plane by punch press and is sunk the end of the drawing sheet 42 completing to stretch,
Its drawing sheet of completing of stretching is paid the utmost attention to as curved under tilting；The lower end of described position portion is then formed is joined with limit for height balance step
The limiting section 43 closing, positioning table is formed with multiple described drawing sheets 42, is formed spacing with the many places of limit for height balance step cooperation
Portion 43；Described rising gathering sill 41 is then formed by insertion for described metallic plate.Can using described positioning key a side as
Position portion in connecting screw rod.
Described connecting screw rod is 90 ° Zi prepackage position location to the rotational angle with the position rising gathering sill cooperation or connects
Nearly 90 °.The side rising gathering sill 41 is bent downwardly stretching formation and has rotation stop and hit plate 410.
The height of this side of plate 410 is hit in the lower end that rotation stop hits plate 410 less than drawing sheet 42 near rotation stop, as such, it is possible to sharp
Sunk with curved or plane under tilting to completing the drawing sheet 42 that stretches to positioning key 24 under the first stage clip 8 effect in rotation while
The guiding of ascending motion, and rotation stop can be clashed into hit after plate 410 automatically into rising gathering sill 41.
First stage clip 8 is paid the utmost attention to be made with spring leaf, or the coil spring made for steel wire.
The method of attachment of the above-mentioned attachment structure of the present invention is：
Connect install before, described can front install lock in be fastenedly connected assembly connecting screw rod 2 be in prepackage position location,
And under this configuration status, the front from connected piece 7 for the connector 6 will be locked in put into described elongated hole or the groove 71 of connected piece,
Operating nut 1 or connecting screw rod 2, make described connecting screw rod 2 abjection prepackage position location, under the driving of the second torsion spring 5, positioning
Key 24 is positioned and in the presence of the first stage clip 8 and the first torsion spring 5 automatically into described rising gathering sill 41, connecting screw rod
It is in steady statue, limit for height balance step 25 then prevents the rebound effect of the first stage clip 8 excessive.Then, by down pressure nut or
Connecting screw rod, makes described connecting screw rod sink and deviate to pre-install position location, and connecting screw rod is driven to rotate to by the second torsion spring and hits
Hit rotation stop and hit plate 410, match with rising gathering sill, automatically into described rising gathering sill, then, rotate nut, make connection
Screw rod rises along rising gathering sill and connected piece is stuck in positioning table and locks between part.
Also the power-assisted of the second torsion spring can not be needed, be threaded to shock rotation stop manually and hit plate 410.
The shape of described positioning table is unrestricted, can be varied as desired in.With reference to Fig. 4, in the present embodiment, positioning table
4a is corner fixture.Can by the fixation to corner fixture anti-rotation.Shown in the other parts of the present embodiment and Fig. 1,2,3
Embodiment is identical.Drawing reference numeral and Fig. 1,2,3 identical, represent identical implication in the diagram.
With reference to Fig. 5, in the present embodiment, described connecting screw rod is the connecting screw rod of connecting pipe hoop so that pipe collar can be pacified
It is contained on connected piece 7, now, connected piece 7 is as the bracing frame of pipe collar.The other parts of the present embodiment and Fig. 1,2,3 institute
Show that embodiment is identical.Drawing reference numeral and Fig. 1,2,3 identical, represent identical implication in Figure 5.
In this case, connecting screw rod abjection prepackage can be entered to be about in the way of using tightening nut 1, connecting screw rod 2
Position location.
With reference to Fig. 6,6a, 7,8,9,10.In the present embodiment, described connecting screw rod 2 is the connection spiral shell of connecting bracket part
, so that bracket component can be installed on connected piece 7a, now, connected piece 7a is as the bracing frame of bracket component for bar.
In the present embodiment, connected piece 7a passes through elongated hole 71a and locks part 6 in and coordinate.The described main body locking part in is in three
The many nodulars of arc section of the equidistant superposition of the consistent circle of individual diameter, elongated hole 71a is by the equidistant superposition of the consistent circle of several diameters
Continuous circular arc section lockhole, described lock part top in and be provided with the spacing collar 45 matching with continuous circular arc section lockhole positioned（As Fig. 6
Shown）, or the both sides of described positioning table can have a downward-sloping clamp 46, and it is right in elongated hole 71a that the clamp 46 of both sides snaps in
Connected piece 7 is positioned.
Around the hole that position portion on described positioning table passes through for connecting screw rod for positioning table, sheet material is pulled upwardly and stretches shape
The described limiting section 43a being matched with lifting position-limit portion is formed on the top of the groove 42a becoming, described groove 42a, and positioning key 24 is simultaneously
Form the position portion in described connecting screw rod, the upper end of positioning key 24 forms the described lifting position-limit with limiting section 43a cooperation
Portion.When stretching forms groove 42a, just avoided by the first stage clip 8 breach in the projection of positioning table upper surface, do not affect nut
Tighten.
The other parts of the present embodiment are identical with Fig. 1,2,3 illustrated embodiment.Drawing reference numeral and Fig. 1,2,3 phase in Figure 5
With, represent identical implication.
For in the illustrated embodiment of Fig. 6,7,8,9,10, the elongated hole 71a on its connected piece 7a may also be employed Figure 11, in 12
Continuous straight hole, and hole both sides by card division position arrange antiskid lock stricture of vagina 72a, correspondingly, as shown in figure 13, lock part 6 upper table in
The both sides in face have antiskid lock stricture of vagina 61.
Figure 14-17,26,27 show that the present invention locks the structure being fastenedly connected fastener embodiment 1 in assembly in.Described nut 1
In be provided with the spring coil 31 that can pin connecting screw rod 2, described spring coil 31 is fixed on nut 1 at the top and around nut bore
10, described spring coil 31 arranges resilient lock section, and using joining with described lock section on the lock section and connecting screw rod of described elasticity
Nut 1 and connecting screw rod 2 are pinned by the position cooperation closed.
Described spring coil 31 includes installing ring plate 311 and is in the multiple flexure strips dug installing ring plate 311 inner side
312, described flexure strip forms described lock section, the free end end 313 of flexure strip 312 be the lock end stuck up into nut bore 10 and with
The groove 21 with lock section cooperation in connecting screw rod 2 coordinates, and pins connecting screw rod 2.
Groove 21 in described connecting screw rod is the groove on connecting screw rod surface along connecting screw rod axial direction, on connecting screw rod surface
Along the circumferential direction be evenly equipped with many bar grooves 21, the quantity of preferably described flexure strip and the quantity of groove 21 are equal, the spacing of lock end also and
The spacing of groove 21 is consistent, and, by the use of the screw thread end face being disconnected as cell wall, its upper end has oral area 211 so that instrument energy for groove 21
Enough it is passed through from described oral area 211 and acts on described lock end 313, be unlocked.
The locking of the present embodiment securing member and unlocking method are：
In fastening, screwing the rotation on direction with nut, lock section 312 can be in connecting screw rod using the elasticity of flexure strip
Surface run_out slips over, and after the completion of fastening, the lock end 313 inwardly stuck up snaps in is joined with lock section 312 in the connecting screw rod 2 eventually falling into
The groove 21 closing, forms locking, pins connecting screw rod, to ensure cannot rotate backward and nut under fierce vibrations, earthquake, wind shake
Will not ease out；In unblock, instrument is passed through in groove from described oral area the compressing of the above-mentioned lock end 313 inwardly stuck up is backed down, carry out
Unlock and energy reversely turn nut.After loosening nut 1, rotate connecting screw rod 2, you can release and lock part 6 and connected piece in
Clamping relation, and can be dismantled, now, connecting screw rod can be gone to prepackage position location.
During manufacture, the blank of nut after finalization of the manufacture, is installed having carrying spring coil near described nut bore upper end
The step 11 of ring plate 311 and the mesa sidewall higher than installation ring plate thickness, and after installation ring plate 311 is placed on step, lead to
Cross punch die extruding metal material, so that the metal material of mesa sidewall is shifted, form cell wall 12, described cell wall on ring plate installing
12 and step 11 compression install ring plate 311 fix spring coil 31.
Outside the installation ring plate 31 of described spring coil 31, there is breach 314, so that it is shifted by extruding metal material and formed
During cell wall 12, so that the metal material at mesa sidewall is transferred at breach 314 and form circumferential location structure.
After described cell wall 12 and step 11 compression install the fixing spring coil 31 of ring plate 311, spring coil is protruded in nut in the hole
Part fracture, on turn over formation described flexure strip 312, now nut become the frock in a step of molding spring coil 31.
Or, described flexure strip 312 and its this part of lock end 313 are placed on described step 11 in spring coil 3 and go forward
Formed and be not also flipped up, this can be completed using traditional punch press step-by-step process, after spring coil 31 is by fixation, this part is carried out
On turn over and form described flexure strip, or flexure strip also on turn over, only need to be fixed on nut.
Accompanying drawing 18-21,28 show that the present invention locks the structure being fastenedly connected fastener embodiment 2 in assembly in.Described spiral shell
Female 1 is provided with the spring coil 32 that can pin connecting screw rod 2, and described spring coil 32 is fixed on nut 1 at top and around spiral shell
Female hole 10, described spring coil 32 arranges resilient lock section, and using on the lock section and connecting screw rod of described elasticity with described lock
Nut 1 and connecting screw rod 2 are pinned by the position cooperation of portion's cooperation.
Described spring coil 32 include install ring plate 321 and be in install ring plate inside can reduce screw in resistance be connected spiral shell
The multistage flexure strip 322 that bar screw thread tilts in the same direction, described flexure strip 322 one end upwarps one end and has a down dip, the inclination angle of flexure strip 322
Degree is different with lead angle, the lift angle of generally higher than screw thread, described flexure strip 322 can utilize its upper and lower elasticity upwards and its
Tilt and in Snap joint screw flight groove and along being threaded into, described flexure strip 322 forms described lock section, described flexure strip
Inner side edge have lock tooth 323, described lock tooth 323 engage with the teeth groove 23 of connecting screw rod thread-groove bottom, pinning connecting screw rod
2.
Described nut bore upper end has the step 11 carrying spring coil mounting ring piece 321, and the outside of step 11 is provided with confession
What flexure strip 322 had a down dip sinks circle 110 it is ensured that flexure strip 322 meets the angle tilting in the same direction with connecting screw rod screw thread.
Described spring coil arranges the narrow width at the position of flexure strip 322, formed can deformation Spring beams 324.
The end of described flexure strip 322 is provided with the fillet 325 importing thread groove.
The locking of the present embodiment securing member and unlocking method are：
In fastening, screwing the rotation on direction with nut, using its upper and lower elasticity upwards and its can incline in lock section 322
Tiltedly and in Snap joint screw flight groove and along being threaded into, lock section 322 because having elasticity, its lock tooth 323 and can be in screw thread
Trench bottom gullet surface is beated and is slipped over, and the spacing between different lock sections is less than the lateral dimension of connecting screw rod, is fastening completely
Afterwards, reinforce flexure strip 322 using the elasticity of Spring beams 324 to the clamping of connecting screw rod 2 so that described flexure strip inner side edge
Lock tooth 323 tightly engage with connecting screw rod thread-groove bottom teeth groove 23, simultaneously utilize described flexure strip 322 angle of inclination and company
The different elasticity being on above-below direction of angle connecing screw flight is so that flexure strip 322 snaps in the cooperation of spiral cell wall jam-packed, shape
Become locking, pin connecting screw rod 2, to ensure cannot rotate backward under fierce vibrations, earthquake, wind shake and nut will not be loose
Go out；In unblock, reversely turn nut, when the elastic force of Spring beams 324 be overcome and during elastic deformation, described lock tooth 323
Skid off teeth groove 23, unlocked and nut can be turned.
Described lock tooth 323 can be the angular teeth of inverse time direction straight-tooth or inverse time orientation angle angular teeth less than normal, makes
Torsion required for unblock rotates backward is more than the torsion required for positive fastening screws.Also may be selected symmetrical in positive triangle
Tooth.But prioritizing selection is inverse time orientation angle angular teeth less than normal, as long as making to make lock tooth lead to when torsion is sufficiently large during dismounting
Cross elastomer ejection and exit engagement, the anti-loosing effect of symmetric teeth can differ from.
During manufacture, the blank of nut after finalization of the manufacture, is installed having carrying spring coil near described nut bore upper end
The step 11 of ring plate 321 and the mesa sidewall higher than installation ring plate thickness, and after installation ring plate 321 is placed on step, its
Flexure strip 322 have a down dip position enter sink circle, by punch die extrude metal material, so that the metal material of mesa sidewall is shifted,
Install and on ring plate 321, form cell wall 12, described cell wall 12 and step 11 compression are installed ring plate 321 and fixed spring coil 32.
When forming cell wall 12, should not push down for Spring beams 324 and leave deformation space 13 outside it.
Described lock tooth 323 is placed on described step 11 in spring coil 32 and goes forward to have been formed, in described cell wall 12 and step
After 11 compressions install ring plate retainer spring circles, spring coil is protruded in nut bore 10, partly forms described inclination along screw thread swaging
Spring leaf 322, or be placed on described step in spring coil and go forward also to have completed along screw thread swaging.
22-27 referring to the drawings.Show that the present invention locks the structure being fastenedly connected fastener embodiment 3 in assembly in.Described
Nut 1 is provided with the spring coil 33 that can pin connecting screw rod 2, and described spring coil 32 is fixed on nut 1 at top and cincture
Nut bore 10, described spring coil 33 arranges resilient lock section, and using on the lock section and connecting screw rod of described elasticity with described
Nut 1 and connecting screw rod 2 are pinned by the position cooperation of lock section cooperation.
Described spring coil 3 is included installing ring plate 331 and is in being tilted in the same direction with connecting screw rod screw thread inside installation ring plate
Multistage flexure strip 332, make during installation along be threaded into when preferably mitigate resistance, the angle of inclination of flexure strip 332 and screw thread
Lift angle is different, the generally higher than lift angle of screw thread, and described flexure strip 332 can be blocked using its upper and lower elasticity upwards and its inclination
Enter in the thread groove of connecting screw rod and along being threaded into, described flexure strip 332 forms described lock section, described flexure strip 332 is in outstanding
Arm, upper end becomes lock end 333 to coordinate with the groove 21 with lock section cooperation in connecting screw rod, pins connecting screw rod 2.
Described nut bore upper end has the step 11 carrying spring coil mounting ring piece 331, and the outside of step 11 is provided with confession
What flexure strip 332 had a down dip sinks circle 110 it is ensured that flexure strip 332 meets the angle tilting in the same direction with connecting screw rod screw thread.
Groove 21 on described screw rod is the groove on connecting screw rod surface along connecting screw rod axial direction, on connecting screw rod surface along circle
Circumferential direction is evenly equipped with many bar grooves 21, and the spacing of lock end 333 is also consistent with the spacing of groove 21, and groove 21 is using the screw thread end face being disconnected
As cell wall, its upper end has oral area 211 so that carrying under the round instrument between can heading into outside nut 12 and connecting screw rod
Press described lock end 333, be unlocked.
Described flexure strip 332 may extend from installing the flexure strip substrate inside ring plate, and the head of substrate is provided with importing spiral shell
The fillet 334 of groove.
The locking of the present embodiment securing member and unlocking method are：
In fastening, screwing the rotation on direction with nut, lock section 333 can be in connecting screw rod using the elasticity of flexure strip
The flute wall surfaces of thread groove are beated and are slipped over, fastening after the completion of, lock end 333 snap in the connecting screw rod 2 eventually falling into lock section
The grooves 21 of 332 cooperations, utilize described flexure strip 332 different from the angle of screw thread so that flexure strip 33 and groove screw thread cell wall simultaneously
Between snap in jam-packed cooperation, form locking it is impossible to rotate backward, pin connecting screw rod, to ensure in fierce vibrations, earthquake, wind
Cannot rotate backward and nut will not ease out under shake；In unblock, instrument is passed through above-mentioned lock in groove from described oral area 211
End 333 extrusion groove 21, is unlocked and energy reversely turn nut, or, instrument is passed through in 21 grooves from described oral area 211 and cuts
Disconnected above-mentioned lock end 333, is unlocked and energy reversely turn nut, or, between can heading into outside nut 12 and screw rod
Round instrument and nutting sleeve metal plate handss tool kit, while oppressing above-mentioned lock end 333, are unlocked and energy reversely turn
Nut.
During manufacture, the blank of nut after finalization of the manufacture, is installed having carrying spring coil near described nut bore upper end
The step 11 of ring plate 331 and the mesa sidewall higher than installation ring plate thickness, and after installation ring plate 331 is placed on step, its
Flexure strip 332 have a down dip position enter sink circle, by punch die extrude metal material, so that the metal material of mesa sidewall is shifted,
Install and on ring plate, form cell wall 12, described cell wall 12 and step 11 compression are installed ring plate 331 and fixed spring coil 33.
Outside the installation ring plate 31 of described spring coil 33, there is breach 335, so that it is shifted by extruding metal material and formed
During cell wall 12, so that the metal material at mesa sidewall is transferred at breach 335 and form circumferential location structure.
After described cell wall 12 and step 11 compression install the fixing spring coil 33 of ring plate 311, spring coil 33 is protruded in nut bore
Interior part fracture, upwarp swaging and form described flexure strip 332 along screw thread swaging, upper end, or described flexure strip is in spring coil quilt
It is placed on described step 11 to go forward to have been formed；Only need to be fixed on nut.
The foregoing is only the specific embodiment of the present invention, but the architectural feature of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among protection scope of the present invention by the change made or modification.
Claims (23)
1. locking in of front installation can be fastenedly connected assembly, including connecting screw rod, nut, connecting screw rod has and nut screw connection
Threaded section it is characterised in that：Described locking in is fastenedly connected assembly and also includes positioning table, the first stage clip and lock part in；Institute
State the top that nut is in positioning table, described connecting screw rod bottom be fixedly connected described in lock part in, described connecting screw rod is in screw thread
The lower section of linkage section has positioning key and lifting position-limit portion, and described positioning table is provided with the rising gathering sill being matched with positioning key
And the limiting section matching with lifting position-limit portion, it is provided with the prepackage positioning of connecting screw rod between described positioning table and connecting screw rod
Structure, described prepackage location structure includes the position portion in position portion and connecting screw rod on positioning table；Described first pressure
Spring is between nut and positioning table, for lifting the molectron of connecting screw rod and nut, make position portion on positioning table and
Position portion in connecting screw rod can coordinate；In the direction of rotation tightening nut, described rising gathering sill is in pre- setting
The downstream of bit positions.
2. locking in of front installation can be fastenedly connected assembly it is characterised in that described lock fastening in even as claimed in claim 1
Connected components also include the second torsion spring, and described second torsion spring is in described positioning table and locks between part, is in connecting screw rod
During prepackage position location, described second torsion spring is in energy storage state, when described second torsion spring is in release conditions, described connection spiral shell
Bar and lock part in and can be driven in rotation, the direction of rotation of its direction of rotation and nut screwing clamping is in the same direction.
3. as claimed in claim 1 can front install lock in be fastenedly connected assembly it is characterised in that described connecting screw rod from
Prepackage position location is arrived and is 90 ° or close to 90 ° with the rotational angle of the position rising gathering sill cooperation.
4. locking in of installing of front can be fastenedly connected assembly it is characterised in that the described length locking part in as claimed in claim 1
Degree size is more than lateral dimension, and the both sides of its upper surface have antiskid lock stricture of vagina.
5. locking in of installing of front can be fastenedly connected assembly it is characterised in that the described length locking part in as claimed in claim 1
Degree size is more than lateral dimension, and, the described main body locking part in is in that the equidistant arc section being superimposed of the consistent circle of several diameters is many
Nodular.
6. locking in of front installation can be fastenedly connected assembly it is characterised in that described positioning table has as claimed in claim 1
Anti-rotation structure is to prevent positioning table own rotation.
7. locking in of installing of front can be fastenedly connected assembly it is characterised in that described second torsion spring one as claimed in claim 2
End is connected in locks the other end on part in and is connected on positioning table.
8. locking in of front installation can be fastenedly connected assembly it is characterised in that rising the one of gathering sill as claimed in claim 1
Side has rotation stop and hits plate or rotation stop collision block.
9. locking in of installing of front can be fastenedly connected assembly it is characterised in that on described positioning table as claimed in claim 1
Surrounding's sheet material in the hole that position portion passes through for connecting screw rod for positioning table is sheared and stretches downwards the sheet material end of formation, institute
The described limiting section being matched with lifting position-limit portion is formed at the bottom stating end, and in described connecting screw rod is described with position portion
The side of positioning key；Or, sheet material quilt around the hole that the position portion on described positioning table passes through for connecting screw rod for positioning table
It is pulled up the groove being formed, the described limiting section being matched with lifting position-limit portion is formed on the top of described groove, and positioning key is simultaneously
Form the position portion in described connecting screw rod, the upper end of positioning key forms described lifting position-limit portion.
10. locking in of front installation can be fastenedly connected assembly it is characterised in that arranging in described nut as claimed in claim 1
The spring coil of connecting screw rod can be pinned；At the close top that described spring coil is fixed on nut and around nut bore, described spring coil
Resilient lock section is set, and will using the position cooperation with the cooperation of described lock section on the lock section and connecting screw rod of described elasticity
Nut and connecting screw rod are pinned.
11. as claimed in claim 10 can front install lock in be fastenedly connected assembly it is characterised in that：Described spring coil includes
Ring plate is installed and is in the multiple flexure strips dug installed inside ring plate, described flexure strip forms described lock section, flexure strip
Free end end be the lock end stuck up to nut in the hole and with connecting screw rod on the groove cooperation with lock section cooperation.
12. as claimed in claim 10 can front install lock in be fastenedly connected assembly it is characterised in that：Described spring coil includes
Ring plate is installed and is in the multistage flexure strip tilting in the same direction with connecting screw rod screw thread installed inside ring plate, described flexure strip
Angle of inclination is different with lead angle, in described flexure strip energy Snap joint screw flight groove and along being threaded into, described bullet
Property piece form described lock section, the inner side edge of described flexure strip has a lock tooth, the tooth of described lock tooth and connecting screw rod thread-groove bottom
Groove engages.
13. as claimed in claim 12 can front install lock in be fastenedly connected assembly it is characterised in that：Described spring coil setting
The narrow width at the position of flexure strip, formed can deformation Spring beams.
14. as claimed in claim 10 can front install lock in be fastenedly connected assembly it is characterised in that：Described spring coil includes
Ring plate is installed and is in the multistage flexure strip tilting in the same direction with connecting screw rod screw thread installed inside ring plate, described flexure strip
Angle of inclination is different with lead angle, and described flexure strip can snap in screw flight groove and along being threaded into, described flexure strip
Form described lock section, the upper end of described flexure strip becomes lock end to coordinate with the groove with lock section cooperation in connecting screw rod.
15. as described in claim 11 or 14 can front install lock in be fastenedly connected assembly it is characterised in that：Described connection
Groove on screw rod has the groove of oral area so that instrument can be passed through from described oral area and act on described lock end for upper end, carries out
Unblock.
16. as described in claim 12 or 14 can front install lock in be fastenedly connected assembly it is characterised in that：Described elasticity
The angle of inclination of piece is more than the lift angle of screw thread.
17. as described in claim 12 or 14 can front install lock in be fastenedly connected assembly it is characterised in that：Described spring coil
The end entering the position of thread groove is provided with the fillet importing thread groove.
18. as claimed in claim 10 can front install lock in be fastenedly connected assembly it is characterised in that：Described nut is leaning on
Closely described nut bore upper end has step, and described spring coil includes installing ring plate, and described installation ring plate is placed on described step,
And so that it is shifted by extruding metal material, and make formation cell wall on ring plate, described cell wall and step compression peace are being installed
Dress ring plate fixes spring coil.
19. as claimed in claim 18 can front install lock in be fastenedly connected assembly it is characterised in that：The peace of described spring coil
Outside dress ring plate, there is breach, when so that it is shifted by extruding metal material and forming cell wall, also make the gold at mesa sidewall
Belong to material and transfer into the location structure that indentation, there forms circumference.
20. as claimed in claim 17 can front install lock in be fastenedly connected assembly it is characterised in that：Nut bore upper end
It is provided with, at the step carrying spring coil mounting ring piece, the sinking circle having a down dip for flexure strip.
A kind of 21. attachment structures it is characterised in that it include described in claim 1 or 10 can front install lock fastening in even
Connected components and connected piece, described connected piece has and the described elongated hole locking part adaptation in or groove, described connected piece quilt
It is stuck in positioning table and locks between part, described positioning key is in rising gathering sill.
22. attachment structures as claimed in claim 21 are it is characterised in that the length dimension locking part in is more than lateral dimension, thereon
The both sides on surface have antiskid lock stricture of vagina；Described connected piece matches in the antiskid lock stricture of vagina being also provided with and locked in by card position part
Antiskid lock stricture of vagina.
A kind of 23. methods of attachment it is characterised in that it using described in claim 1 or 10 can front install lock fastening in even
Connected components are connected with connected piece, and described connected piece has and the described elongated hole locking part adaptation in or groove, described elongated hole or length
Groove can be put into from front and be stuck in the another side of elongated hole or groove after rotation for described part of locking in；
Connect install before, described can front install lock in be fastenedly connected assembly connecting screw rod be in prepackage position location,
And under this configuration status, connector will be locked in put into from the front of connected piece described elongated hole or the groove of connected piece, and pass through
Down pressure nut or connecting screw rod, make described connecting screw rod sink and deviate to pre-install position location, connecting screw rod is driven in rotation
With rise gathering sill match, enter described rising gathering sill, rotate nut, make connecting screw rod along rise gathering sill rise and incite somebody to action
Connected piece is stuck in positioning table and locks between part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819865.XA CN106438654B (en) | 2016-09-13 | 2016-09-13 | It is a kind of can front installation lock fastening connection piece, connection structure and connection method in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819865.XA CN106438654B (en) | 2016-09-13 | 2016-09-13 | It is a kind of can front installation lock fastening connection piece, connection structure and connection method in |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438654A true CN106438654A (en) | 2017-02-22 |
| CN106438654B CN106438654B (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610819865.XA Active CN106438654B (en) | 2016-09-13 | 2016-09-13 | It is a kind of can front installation lock fastening connection piece, connection structure and connection method in |
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| CN (1) | CN106438654B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906107A (en) * | 2017-11-24 | 2018-04-13 | 成都新力紧科技有限公司 | For building the locking device and locking mechanism of electromechanical installation hanger system |
| CN108035959A (en) * | 2017-11-24 | 2018-05-15 | 成都新力紧科技有限公司 | For building the channel steel and locking mechanism of electromechanical installation hanger system |
| CN111237319A (en) * | 2020-01-16 | 2020-06-05 | 江苏百德特种合金有限公司 | Self-locking threaded fastener |
-
2016
- 2016-09-13 CN CN201610819865.XA patent/CN106438654B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906107A (en) * | 2017-11-24 | 2018-04-13 | 成都新力紧科技有限公司 | For building the locking device and locking mechanism of electromechanical installation hanger system |
| CN108035959A (en) * | 2017-11-24 | 2018-05-15 | 成都新力紧科技有限公司 | For building the channel steel and locking mechanism of electromechanical installation hanger system |
| CN111237319A (en) * | 2020-01-16 | 2020-06-05 | 江苏百德特种合金有限公司 | Self-locking threaded fastener |
| CN111237319B (en) * | 2020-01-16 | 2021-08-13 | 江苏百德特种合金有限公司 | Self-locking threaded fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438654B (en) | 2018-11-06 |
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