CN108167300A - A kind of anti-derotation screw for coordinating hole depth - Google Patents
A kind of anti-derotation screw for coordinating hole depth Download PDFInfo
- Publication number
- CN108167300A CN108167300A CN201711453837.1A CN201711453837A CN108167300A CN 108167300 A CN108167300 A CN 108167300A CN 201711453837 A CN201711453837 A CN 201711453837A CN 108167300 A CN108167300 A CN 108167300A
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- China
- Prior art keywords
- screw
- gag lever
- lever post
- backhaul
- backhaul block
- 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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- 230000000694 effects Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/02—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws divided longitudinally
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/005—Set screws; Locking means therefor
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- 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
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of anti-derotation screw for coordinating hole depth, including screw, screw head assembly and backhaul block assembly；The screw head assembly is arranged on the top of screw；Screw is internally provided with backhaul block assembly；The screw head assembly includes head of screw, button, spring A, gear, gag lever post A, lead A, inner wall hole, gag lever post B, positioning protrusion, connecting rod, convex block B and lead B；The backhaul block assembly component includes cylinder guide rod, telescopic rod, spring B, annular lug A, backhaul block and backhaul block base apertures；The present invention is by screw, screw head assembly and backhaul block assembly collective effect, the problem of structural breakdown caused by not only solving screw derotation causes serious adverse consequences；When also solving screw thread under hole, and when hole is again deep, head of screw length falls short of, the problem of not allowing easy-to-use hand stabilized when firm screw in.
Description
Technical field
The present invention relates to technical field of fastening, specifically provide a kind of anti-derotation screw for coordinating hole depth.
Background technology
Fastener is to be fastenedly connected with and apply extremely wide a kind of machine components；Fastener, it is wide using industry
It is general, including the energy, electronics, electric appliance, machinery, chemical industry, metallurgy, mold, hydraulic pressure etc. industry, various machineries, equipment, vehicle,
Above ship, railway, bridge, building, structure, tool, instrument, chemical industry, instrument and articles for use etc., it can be seen that miscellaneous
Fastener is most widely used mechanical basic part；Its feature is that description is various, and performance purposes is different, and standard
Change, seriation, unitized degree are also high.
Screw is a kind of common fastener, is widely used on machinery, electric appliance and building.General material for metal or
Plastic cement, cylinder, surface carves irregular ditch and is known as screw thread；With the progress of social science and technology, industrial and agricultural production mechanization, from
Dynamicization degree rapidly improves, and higher requirement is proposed to the safety of mechanical equipment；It needs to make screw anti-derotation, but it is existing
In the market screw cannot anti-derotation, make unexpected, theft in this way, deliberately its structural breakdown connected caused to be made screw back-out
Into various unpredictable consequences.
General screw cannot put back rotation, make unexpected, theft in this way, deliberately its structure connected caused to collapse screw back-out
It collapses and causes various unpredictable consequences, and the hole that general screw can not freely coordinate depth different.
Therefore, how the screw in market is improved, it is made to overcome disadvantages mentioned above that can have the advantages that again above-mentioned, be ability
A field technique personnel problem urgently to be resolved hurrily.
Invention content
The purpose of the present invention is to provide a kind of anti-derotation screw for coordinating hole depth, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical solution：
A kind of anti-derotation screw for coordinating hole depth, including screw, screw head assembly and backhaul block assembly；The screw
Head assembly is arranged on the top of screw；Screw is internally provided with backhaul block assembly.
As improvement：The screw head assembly includes head of screw, button, spring A, gear, gag lever post A, lead A, interior
Cinclides, gag lever post B, positioning protrusion, connecting rod, convex block B and lead B；The side of the head of screw open up it is fluted, groove
Bottom is equipped with inverted U-channel；The button is mounted on the inside of groove, and spring A is equipped between button right side and the right end of groove；
The bottom of the button is equipped with the gag lever post A of L-type, and the gag lever post A of L-type is extended to inside inverted U-channel；The horizontal stroke of the gag lever post A of L-type
The bottom of arm is equipped with rack structure, and is engaged with the gear of its bottom；The gag lever post B of L-type is arranged on gear, the gag lever post B of L-type
Top be equipped with rack structure, rack structure engages with gear；The right sidewall of the gag lever post A of L-type is set close to the position at top
There is lead A, and corresponding position offers the inner wall hole to match on the right side wall of inverted U-channel；The L-type
The left side side wall of gag lever post B is equipped with lead B close to the position at top, and corresponding on the left side wall of inverted U-channel
Position offers the inner wall hole to match；The bottom inside of the gag lever post A of the L-type and the gag lever post B of L-type are equipped with convex
It rises；The connecting rod is symmetricly set on the both sides of head of screw bottom, and is equipped with convex block B in the madial wall bottom of connecting rod.
As being further improved：The backhaul block assembly component includes cylinder guide rod, telescopic rod, spring B, annular lug
A, backhaul block and backhaul block base apertures；It opens up fluted at the top of the screw, cylinder guide rod, column is installed among groove
The outside of circle guide rod is equipped with telescopic rod, the inside of backhaul block base apertures is arranged at the top of telescopic rod, spring B is sleeved on flexible
The outside of bar；The backhaul block bottom centre position offers and the matched groove of cylinder guide rod, backhaul block grafting installation
In the inside grooves of screw head；Outside at the top of the backhaul block is equipped with annular lug A, and backhaul block upper surface is equipped with round recessed
Slot, the madial wall of circular groove are equipped with and the corresponding card hole of positioning protrusion.
As being further improved：The outside of the screw is equipped with screw thread, and does taper processing in the bottom of screw.
As being further improved：The connecting rod is the thin slice connecting rod of elastically deformable.
As being further improved：The number of the telescopic rod and spring B is four.
Compared with prior art, the advantage of the invention is that：The present invention passes through screw, screw head assembly and backhaul block assembly
The problem of collective effect, structural breakdown caused by not only solving screw derotation causes serious adverse consequences；Also solve screw thread
When under hole, and when hole is again deep, head of screw length falls short of, and does not allow easy-to-use hand is stabilized to ask when firm screw in
Topic.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail：
Fig. 1 is a kind of cross-sectional structure diagram for the anti-derotation screw for coordinating hole depth；
Fig. 2 is cross-sectional structure diagram when a kind of anti-derotation screw for coordinating hole depth is installed；
Fig. 3 is the cross-sectional structure diagram after a kind of anti-derotation screw installation for coordinating hole depth；
Fig. 4 is the structure diagram of A-A in anti-derotation screw for coordinating hole depth a kind of；
Fig. 5 is the structure diagram of B-B in anti-derotation screw for coordinating hole depth a kind of；
Fig. 6 is the structure diagram of C-C in anti-derotation screw for coordinating hole depth a kind of；
Fig. 7 is the structure diagram of D-D in anti-derotation screw for coordinating hole depth a kind of.
In figure：Screw 1, screw thread 101, head of screw 2, cylinder guide rod 3, telescopic rod 4, spring B 5, button 6, spring A7, tooth
Wheel 8, lead A10, inner wall hole 11, annular lug A12, gag lever post B13, positioning protrusion 14, backhaul block 15, connects gag lever post A9
Bar 16, convex block B17, backhaul block base apertures 18, lead B19.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~7, in the embodiment of the present invention, a kind of anti-derotation screw for coordinating hole depth, including screw 1, spiral shell
Nail-head component and backhaul block assembly；The screw head assembly is arranged on the top of screw 1；Screw 1 is internally provided with backhaul block assembly.
The screw head assembly includes head of screw 2, button 6, spring A7, gear 8, gag lever post A9, lead A10, inner wall
Hole 11, gag lever post B13, positioning protrusion 14, connecting rod 16, convex block B17 and lead B19；The side of the head of screw 2 offers
Groove, the bottom of groove are equipped with inverted U-channel；The button 6 is mounted on the right end of the inside of groove, 6 right side of button and groove
Between be equipped with spring A7；The bottom of the button 6 is equipped with the gag lever post A9 of L-type, and the gag lever post A9 of L-type is extended in inverted U-channel
Portion；The bottom of the transverse arm of the gag lever post A9 of L-type is equipped with rack structure, and is engaged with the gear 8 of its bottom；The gag lever post B13 of L-type
Gear 8 is arranged on, the top of the gag lever post B13 of L-type is equipped with rack structure, and rack structure is engaged with gear 8；The gag lever post of L-type
The right sidewall of A9 is equipped with lead A10, and the corresponding position on the right side wall of inverted U-channel close to the position at top
The inner wall hole 11 to match is offered, is moved right convenient for the gag lever post A9 of L-type；The left side side wall of the gag lever post B13 of the L-type
Lead B19 is equipped with, and corresponding position offers and matches on the left side wall of inverted U-channel close to the position at top
Inner wall hole 11, convenient for L-type gag lever post B13 to left movement；The bottom of the gag lever post A9 of the L-type and the gag lever post B13 of L-type
Inside is equipped with positioning protrusion 14；The connecting rod 16 is symmetricly set on the both sides of 2 bottom of head of screw, and in the madial wall of connecting rod 16
Bottom is equipped with convex block B17.
The backhaul block assembly component includes cylinder guide rod 3, telescopic rod 4, spring B 5, annular lug A12, backhaul block 15
And backhaul block base apertures 18；The top of the screw 1 opens up fluted, is equipped with cylinder guide rod 3 among groove, column circle is led
Telescopic rod 4 is equipped with to the outside of bar 3, the inside of backhaul block base apertures 18 is arranged at the top of telescopic rod, spring B 5, which is sleeved on, stretches
The outside of contracting bar 4；The 15 bottom centre position of backhaul block offers and 3 matched groove of cylinder guide rod, backhaul block 15
Grafting is mounted on the inside grooves at 1 top of screw；The outside at 15 top of backhaul block is equipped with annular lug A12, backhaul block 15
Upper surface is equipped with circular groove, and the madial wall of circular groove is equipped with and 14 corresponding card hole of positioning protrusion.
The outside of the screw 1 is equipped with screw thread 101, and does taper processing in the bottom of screw 1.
The connecting rod 16 is the thin slice connecting rod of elastically deformable.
The number of the telescopic rod 4 and spring B 5 is four.
The present invention operation principle be：After screw is screwed in wall, by lower button, button pushes gag lever post A, gag lever post A
The parallel motion to the right under the balance of lead A and inner wall hole, gag lever post A lower surfaces are racks, and gag lever post B upper surfaces are teeth
Item by gag lever post A lower surfaces rack drives gear, makes gag lever post B parallel motions to the left, with this by gag lever post A and gag lever post B
Positioning protrusion pull out the aperture of backhaul block inner wall respectively so that backhaul block adjusts height and position in a certain range, can also
It is back to inside screw.
After positioning protrusion is drawn out, backhaul block is transported under the balance of cylindrical projection and upwards in screw under the drive of spring B
Dynamic, the annular lug A at top will outward push up convex block B, since head of screw and connecting rod are affixed, and connecting rod is can elasticity change
The thin slice connecting rod of shape, convex block B can drive connecting rod to be bent outwardly a bit, can be exerted oneself at this time by the convex block B of head of screw along annular lug A
Inclined-plane extract, due to being all circle inside backhaul block, no fulcrum makes its rotation, has the function that anti-derotation, convex annular with this
Block A can also play the role of the plate face article for needing to be bonded with metope pushing down positioning；Convex block B, which is also acted as, to be drawn by spring B
The effect of backhaul block positioning under power effect.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of anti-derotation screw for coordinating hole depth, it is characterised in that：Including screw (1), screw head assembly and backhaul block
Component；The screw head assembly is arranged on the top of screw (1)；Screw (1) is internally provided with backhaul block assembly.
2. a kind of anti-derotation screw for coordinating hole depth according to claim 1, it is characterised in that：The screw head assembly
Including head of screw (2), button (6), spring A (7), gear (8), gag lever post A (9), lead A (10), inner wall hole (11), limiting
Bar B (13), positioning protrusion (14), connecting rod (16), convex block B (17) and lead B (19)；It opens the side of the head of screw (2)
Equipped with groove, the bottom of groove is equipped with inverted U-channel；The button (6) mounted on the inside of groove, button (6) right side with it is recessed
Spring A (7) is equipped between the right end of slot；The bottom of the button (6) is equipped with the gag lever post A (9), the gag lever post A (9) of L-type of L-type
It extends to inside inverted U-channel；The bottom of the transverse arm of the gag lever post A (9) of L-type be equipped with rack structure, and with the gear (8) of its bottom
Engagement；The gag lever post B (13) of L-type is arranged on gear (8), and the top of the gag lever post B (13) of L-type is equipped with rack structure, rack knot
Structure is engaged with gear (8)；The right sidewall of the gag lever post A (9) of L-type is equipped with lead A (10) close to the position at top, and is falling
Corresponding position offers the inner wall hole (11) to match on the right side wall of U-lag；The gag lever post B (13) of the L-type
Left side side wall be equipped with lead B (19), and the corresponding position on the left side wall of inverted U-channel close to the position at top
Offer the inner wall hole (11) to match；The bottom inside of the gag lever post A (9) of the L-type and the gag lever post B (13) of L-type are all provided with
There is positioning protrusion (14)；The connecting rod (16) is symmetricly set on the both sides of head of screw (2) bottom, and in the madial wall of connecting rod (16)
Bottom is equipped with convex block B (17).
3. a kind of anti-derotation screw for coordinating hole depth according to claim 1, it is characterised in that：The backhaul block assembly
Component includes cylinder guide rod (3), telescopic rod (4), spring B (5), annular lug A (12), backhaul block (15) and backhaul block bottom
Portion hole (18)；It opens up fluted at the top of the screw (1), cylinder guide rod (3) is installed, column circle guide rod among groove
(3) outside is equipped with telescopic rod (4), and the inside of backhaul block base apertures (18), spring B (5) suit are arranged at the top of telescopic rod
In the outside of telescopic rod (4)；Backhaul block (15) the bottom centre position offers matched recessed with cylinder guide rod (3)
Slot, backhaul block (15) grafting are mounted on the inside grooves at the top of screw (1)；Outside at the top of the backhaul block (15) is equipped with annular
Convex block A (12), backhaul block (15) upper surface are equipped with circular groove, and the madial wall of circular groove is equipped with positioning protrusion (14) relatively
The card hole answered.
4. a kind of anti-derotation screw for coordinating hole depth according to claim 1, it is characterised in that：The screw (1)
Outside is equipped with screw thread (101), and does taper processing in the bottom of screw (1).
5. a kind of anti-derotation screw for coordinating hole depth according to claim 1, it is characterised in that：The connecting rod (16) is
The thin slice connecting rod of elastically deformable.
6. a kind of anti-derotation screw for coordinating hole depth according to claim 1, it is characterised in that：The telescopic rod (4)
Number with spring B (5) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453837.1A CN108167300B (en) | 2017-12-28 | 2017-12-28 | Anti-reverse-rotation screw capable of being matched with hole depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711453837.1A CN108167300B (en) | 2017-12-28 | 2017-12-28 | Anti-reverse-rotation screw capable of being matched with hole depth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167300A true CN108167300A (en) | 2018-06-15 |
| CN108167300B CN108167300B (en) | 2020-04-21 |
Family
ID=62518881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711453837.1A Active CN108167300B (en) | 2017-12-28 | 2017-12-28 | Anti-reverse-rotation screw capable of being matched with hole depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167300B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901639A (en) * | 2021-01-21 | 2021-06-04 | 柯惠萍 | High-strength anti-theft screw fastener |
| CN112922945A (en) * | 2021-02-24 | 2021-06-08 | 林锡聪 | Anti-drop bolt assembly for mechanical configuration |
| CN113681131A (en) * | 2021-08-20 | 2021-11-23 | 宁波九龙创展紧固件股份有限公司 | Cylinder head welding nail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB834786A (en) * | 1955-06-29 | 1960-05-11 | North Bar Tool Company Ltd | A tool for manipulating a bolt and a nut screwed thereon |
| CN106122233A (en) * | 2016-07-20 | 2016-11-16 | 上海宇航系统工程研究所 | Pine does not take off clamp device and electric wrench thereof |
| CN205908593U (en) * | 2016-09-26 | 2017-01-25 | 天津市天龙得冷成型部件有限公司 | Dual -locking bolt |
| CN205908602U (en) * | 2016-09-26 | 2017-01-25 | 天津市天龙得冷成型部件有限公司 | Anti -theft screw |
| CN206221467U (en) * | 2016-10-15 | 2017-06-06 | 绍兴上虞华通螺丝有限公司 | A kind of length-adjustable bolt |
-
2017
- 2017-12-28 CN CN201711453837.1A patent/CN108167300B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB834786A (en) * | 1955-06-29 | 1960-05-11 | North Bar Tool Company Ltd | A tool for manipulating a bolt and a nut screwed thereon |
| CN106122233A (en) * | 2016-07-20 | 2016-11-16 | 上海宇航系统工程研究所 | Pine does not take off clamp device and electric wrench thereof |
| CN205908593U (en) * | 2016-09-26 | 2017-01-25 | 天津市天龙得冷成型部件有限公司 | Dual -locking bolt |
| CN205908602U (en) * | 2016-09-26 | 2017-01-25 | 天津市天龙得冷成型部件有限公司 | Anti -theft screw |
| CN206221467U (en) * | 2016-10-15 | 2017-06-06 | 绍兴上虞华通螺丝有限公司 | A kind of length-adjustable bolt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901639A (en) * | 2021-01-21 | 2021-06-04 | 柯惠萍 | High-strength anti-theft screw fastener |
| CN112922945A (en) * | 2021-02-24 | 2021-06-08 | 林锡聪 | Anti-drop bolt assembly for mechanical configuration |
| CN112922945B (en) * | 2021-02-24 | 2022-05-10 | 陕西北方风力机电有限责任公司 | Anti-drop bolt assembly for mechanical configuration |
| CN113681131A (en) * | 2021-08-20 | 2021-11-23 | 宁波九龙创展紧固件股份有限公司 | Cylinder head welding nail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108167300B (en) | 2020-04-21 |
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