CN108071644A - A kind of anti-theft bolt of Anti-loose - Google Patents
A kind of anti-theft bolt of Anti-loose Download PDFInfo
- Publication number
- CN108071644A CN108071644A CN201810089871.3A CN201810089871A CN108071644A CN 108071644 A CN108071644 A CN 108071644A CN 201810089871 A CN201810089871 A CN 201810089871A CN 108071644 A CN108071644 A CN 108071644A
- Authority
- CN
- China
- Prior art keywords
- theft
- bolt
- head
- actuator
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 abstract description 5
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009466 transformation Effects 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- 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
-
- 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)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of anti-theft bolts of Anti-loose,Including bolt head,Screw rod,Actuator,Theft-proof cover cap and anti-release member,One end of the bolt head is equipped with screw rod,The periphery of the screw rod is equipped with external screw thread,Installation cavity is offered in the screw rod,The other end of the anti-release member is equipped with locking head,The shape of the locking head is truncated cone-shaped,The lower end of the screw rod is equipped with tightening part,The locking head is engaged with tightening part,The actuator is symmetrically mounted on by tension spring on bolt head,The bolt head is engaged by actuator with theft-proof cover cap,Cavity volume is equipped in the theft-proof cover cap,The periphery of the cavity volume offers several driver slots,The actuator is engaged with driver slot,The top of the theft-proof cover cap is equipped with driving lug boss,By setting anti-release member in inside screw,Utilize the end radial dilatation of locking head control screw rod,Achieve the purpose that locking,By setting theft-proof cover cap on bolt head,With good anti-theft effect.
Description
【Technical field】
The present invention relates to the technical fields of bolt, particularly a kind of technical field of the anti-theft bolt of Anti-loose.
【Background technology】
Bolt, nut are one group of common knockdown chain connecting connectors, and bolt largely includes bolt head and shank of bolt, and spiral shell
Bolt head is often outer regular hexagon or interior regular hexagon mechanism, and the bolt of this structure can use various Wrench flexible
It screws, and then this structure also results in that some are set up and equipment is stolen, especially power equipment, not only serious damage
National interests, and also create various security risks, in addition in many cases, the nut of connection can be because long-term place
Occur to loosen in vibrating state and even come off, and to user unnecessary trouble is brought to set is security risk, now provides
A kind of anti-theft bolt of Anti-loose.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of anti-theft bolt of Anti-loose, by
Inside screw set anti-release member, using locking head control screw rod end radial dilatation, formed self-locking, achieve the purpose that it is locking,
By setting theft-proof cover cap on bolt head, it is necessary to control the cooperation of actuator and theft-proof cover cap by special spanner, driving
Bolt head rotates, and could realize the dismounting of bolt, has good anti-theft effect, avoids artificial arbitrarily dismounting.
To achieve the above object, the present invention proposes a kind of anti-theft bolt of Anti-loose, including bolt head, screw rod, driving
Part, theft-proof cover cap and anti-release member, one end of the bolt head are equipped with screw rod, and the periphery of the screw rod is equipped with external screw thread, the spiral shell
Installation cavity is offered in bar, the first thread segment is equipped in the installation cavity, one end of the anti-release member is equipped with the second thread segment, institute
It states the second thread segment to be engaged with the first thread segment, one end of the anti-release member offers first and screws slot, the anti-release member
The other end is equipped with locking head, and the shape of the locking head is truncated cone-shaped, and the lower face of the locking head offers second and screws slot,
The lower end of the screw rod is equipped with tightening part, and the locking head is engaged with tightening part, and the actuator is symmetrically installed by tension spring
On bolt head, the bolt head is engaged by actuator with theft-proof cover cap, and cavity volume, the spiral shell are equipped in the theft-proof cover cap
Bolt head is engaged with cavity volume, and the lower section of the cavity volume is equipped with the first straight slot, and the screw rod is outside the first straight slot, the cavity volume
Offer several driver slots week, the actuator is engaged with driver slot, and the top of the theft-proof cover cap is equipped with driving protrusion
Portion.
Preferably, the theft-proof cover cap further includes chassis, the cross sectional shape on the chassis is annular, the chassis it is upper
Side includes two protruding blocks equipped with driving lug boss, the driving lug boss, and the cross sectional shape of the protruding block is semicircle, institute
Protruding block is stated radially in being in staggered distribution, the part of staggering between the protruding block forms drive surface, and the cavity volume is through driving
Lug boss and chassis, the cross sectional shape of the cavity volume is circle, and the number of the driver slot is four.
Preferably, the circumferential direction of the tightening part offers several slots, the inner wall of the tightening part offers taper
Face, the lower end of the installation cavity are equipped with auxiliary installation cavity, spring, the bullet are equipped between the locking head and auxiliary installation cavity
One end of spring is fixed on auxiliary installation cavity, and the other end of the spring is fixed on locking head.
Preferably, described first screws slot as interior hex slot, described second screws slot as cross recess or flat recess.
Preferably, the cross sectional shape of the bolt head is circle, the first mounting groove is offered in the bolt head, it is described
The axis of first mounting groove extends radially through bolt head, and the actuator is symmetrically mounted on the both ends of the first mounting groove by tension spring,
The top of first mounting groove is equipped with the second straight slot, and second straight slot is connected with installation cavity.
Preferably, the bolt head further includes mounting head and positioning head, the positioning head runs through the first straight slot, described fixed
The cross sectional shape of potential head and the first straight slot is circle.
Preferably, the actuator is equipped with arcwall face, the cross sectional shape of the actuator close to the end of the second straight slot
For rectangle.
Beneficial effects of the present invention：The present invention is matched somebody with somebody by bolt head, screw rod, actuator, theft-proof cover cap and anti-release member etc.
It closes, by setting anti-release member in inside screw, using the end radial dilatation of locking head control screw rod, forms self-locking, reach anti-
The purpose of pine, by setting theft-proof cover cap on bolt head, it is necessary to by special spanner control actuator and theft-proof cover cap
Cooperation, driving bolt head rotate, and could realize the dismounting of bolt, have good anti-theft effect, avoid artificial arbitrarily dismounting.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of schematic cross-section of the anti-theft bolt of Anti-loose of the present invention；
Fig. 2 is a kind of schematic top plan view of the anti-theft bolt of Anti-loose of the present invention；
Fig. 3 is a kind of partial sectional schematic view of the anti-theft bolt of Anti-loose of the present invention.
Fig. 4 is a kind of schematic cross-section of the theft-proof cover cap of the anti-theft bolt of Anti-loose of the present invention；
Fig. 5 is the schematic diagram on the special key head that a kind of anti-theft bolt of Anti-loose of the present invention uses；
Fig. 6 is the elevational schematic view on the special key head that a kind of anti-theft bolt of Anti-loose of the present invention uses.
【Specific embodiment】
Refering to Fig. 1 to Fig. 6, a kind of anti-theft bolt of Anti-loose of the present invention, including bolt head 1, screw rod 2, actuator 3, anti-
Block 4 and anti-release member 5 are stolen, one end of the bolt head 1 is equipped with screw rod 2, and the periphery of the screw rod 2 is equipped with external screw thread, the spiral shell
Installation cavity 21 is offered in bar 2, the first thread segment 211 is equipped in the installation cavity 21, one end of the anti-release member 5 is equipped with second
Thread segment 51, second thread segment 51 are engaged with the first thread segment 211, and one end of the anti-release member 5 offers the first rotation
Twist slot 511, the other end of the anti-release member 5 is equipped with locking first 52, and locking first 52 shape is truncated cone-shaped, the locking head
52 lower face offers second and screws slot 521, and the lower end of the screw rod 2 is equipped with tightening part 22, and described locking first 52 and tensioner
Portion 22 is engaged, and the actuator 3 is symmetrically mounted on by tension spring 32 on bolt head 1, the bolt head 1 by actuator 3 with
Theft-proof cover cap 4 is engaged, and cavity volume 43 is equipped in the theft-proof cover cap 4, and the bolt head 1 is engaged with cavity volume 43, the cavity volume
43 lower section is equipped with the first straight slot 431, and the screw rod 2 runs through the first straight slot 431, and the periphery of the cavity volume 43 offers several
Driver slot 42, the actuator 3 are engaged with driver slot 42, and the top of the theft-proof cover cap 4 is equipped with driving lug boss 41.It is described
Theft-proof cover cap 4 further includes chassis 44, and the cross sectional shape on the chassis 44 is annular, and the top on the chassis 44 is equipped with driving protrusion
Portion 41, the driving lug boss 41 include two protruding blocks 411, and the cross sectional shape of the protruding block 411 is semicircle, described convex
Bittiness 411 radially in being in staggered distribution, and the part of staggering between the protruding block 411 forms drive surface 412, and the cavity volume 43 passes through
Driving lug boss 41 and chassis 44 are worn, the cross sectional shape of the cavity volume 43 is circle, and the number of the driver slot 42 is four.Institute
The circumferential direction for stating tightening part 22 offers several slots 23, and the inner wall of the tightening part 22 offers taper surface 221, the installation
The lower end of chamber 21 is equipped with auxiliary installation cavity 212, and spring, the bullet are equipped between described locking first 52 and auxiliary installation cavity 212
One end of spring is fixed on auxiliary installation cavity 212, and the other end of the spring is fixed on locking first 52.Described first screws slot
511 be interior hex slot, and described second screws slot 521 as cross recess or flat recess.The cross sectional shape of the bolt head 1 is circle,
The first mounting groove 13 is offered in the bolt head 1, the axis of first mounting groove 13 extends radially through bolt head 1, the drive
Moving part 3 is symmetrically mounted on the both ends of the first mounting groove 13 by tension spring 32, and the top of first mounting groove 13 is equipped with second and leads to
Slot 14, second straight slot 14 are connected with installation cavity 21.The bolt head 1 further includes mounting head 11 and positioning head 12, described
Positioning head 12 runs through the first straight slot 431, and the cross sectional shape of 12 and first straight slot 431 of positioning head is circle.The driving
Part 3 is equipped with arcwall face 31 close to the end of the second straight slot 14, and the cross sectional shape of the actuator 3 is rectangle.
The course of work of the present invention：
Anti-release member 5 during the work time, is installed in installation cavity 21 by a kind of anti-theft bolt of Anti-loose of the present invention first,
Screwed by a word or cross like spanner and locking first 52 cooperation, to locking first 52 and the lower face flush of bolt head 1, pass through by
Screw rod 2 assembles anti-theft bolt through theft-proof cover cap 4, and the bolt head 1 with theft-proof cover cap 4 then is snapped onto driving end
In cavity 61 in portion, the drive rod 62 inside spanner runs through slot 14 at this time, and the head of rotating spanner as needed is until drive
Lever 62 can be completely inserted into slot 14, and the end of actuator 3 is inserted into driver slot under the driving of drive rod 62 at this time
In 42, and the bottom of driving end is higher than the bottom of positioning head 12, then will install positioning pin 63, and chassis 44 is installed on fixed at this time
The top of position pin 63, rotating spanner cavity 61 can control theft-proof cover cap 4 to rotate, and theft-proof cover cap 4 controls bolt by actuator 3
First 1 rotates, until the bottom of positioning head 12 touches the upper surface of workpiece, realizes tightening for bolt, then pulls out positioning pin 63
Go out, remove spanner, due to the reset effect of tension spring 32, actuator 3 departs from driver slot 42, theft-proof cover cap 4 and bolt head 1 it
Between for embedding structure, common spanner can not be dismantled, then be screwed anti-release member 5 using allen wrench, locking first 52
It moves up, 22 radial dilatation of tightening part, there is locking effect, it is necessary to during demounting bolt, it first will be anti-by die nut
To screwing, driving anti-release member 5 resets, and then Wrench head is inserted on bolt head 1 with above-mentioned Installation Modes by demounting bolt,
By rotating spanner actuator 3 is controlled to enter in driver slot 42, linear type spanner is then taken to pass through groove body 64 by theft-proof cover cap 4
It is upturned to 61 top of top contact cavity, then positioning pin 63 is installed, rotate backward the dismounting that spanner realizes bolt.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme all belong to the scope of protection of the present invention.
Claims (6)
1. a kind of anti-theft bolt of Anti-loose, it is characterised in that：Including bolt head (1), screw rod (2), actuator (3), pilferproof closure
Cap (4) and anti-release member (5), one end of the bolt head (1) are equipped with screw rod (2), and the periphery of the screw rod (2) is equipped with external screw thread,
Installation cavity (21) is offered in the screw rod (2), the first thread segment (211), the anti-release member are equipped in the installation cavity (21)
(5) one end is equipped with the second thread segment (51), and second thread segment (51) is engaged with the first thread segment (211), described anti-
One end of loose part (5) offers first and screws slot (511), and the other end of the anti-release member (5) is equipped with locking head (52), described anti-
The shape of loose head (52) is truncated cone-shaped, and the lower face of the locking head (52) offers second and screws slot (521), the screw rod
(2) lower end is equipped with tightening part (22), and the locking head (52) is engaged with tightening part (22), and the actuator (3) passes through drawing
Spring (32) is symmetrically mounted on bolt head (1), and the bolt head (1) is engaged by actuator (3) with theft-proof cover cap (4), institute
It states and cavity volume (43) is equipped in theft-proof cover cap (4), the bolt head (1) is engaged with cavity volume (43), the lower section of the cavity volume (43)
Equipped with the first straight slot (431), the screw rod (2) runs through the first straight slot (431), and the periphery of the cavity volume (43) offers several
Driver slot (42), the actuator (3) are engaged with driver slot (42), and the top of the theft-proof cover cap (4) is equipped with driving protrusion
Portion (41).
2. a kind of anti-theft bolt of Anti-loose as described in claim 1, it is characterised in that：The theft-proof cover cap (4) further includes
Chassis (44), the cross sectional shape of the chassis (44) is annular, and the top of the chassis (44) is equipped with driving lug boss (41), institute
Stating driving lug boss (41) includes two protruding blocks (411), and the cross sectional shape of the protruding block (411) is semicircle, described convex
Bittiness (411) radially in being in staggered distribution, the part of staggering between the protruding block (411) forms drive surface (412), the appearance
Chamber (43) is through driving lug boss (41) and chassis (44), and the cross sectional shape of the cavity volume (43) is circular, the driver slot
(42) number is four.
3. a kind of anti-theft bolt of Anti-loose as described in claim 1, it is characterised in that：The circumferential direction of the tightening part (22) is opened
Equipped with several slots (23), the inner wall of the tightening part (22) offers taper surface (221), the lower end of the installation cavity (21)
Equipped with auxiliary installation cavity (212), spring is installed between the locking head (52) and auxiliary installation cavity (212), the spring
One end is fixed on auxiliary installation cavity (212), and the other end of the spring is fixed on locking head (52).
4. a kind of anti-theft bolt of Anti-loose as described in claim 1, it is characterised in that：Described first, which screws slot (511), is
Interior hex slot, described second screws slot (521) as cross recess or flat recess.
5. a kind of anti-theft bolt of Anti-loose as described in claim 1, it is characterised in that：The section shape of the bolt head (1)
Shape is circle, offers the first mounting groove (13) in the bolt head (1), the axis of first mounting groove (13) extends radially through
Bolt head (1), the actuator (3) are symmetrically mounted on the both ends of the first mounting groove (13), first peace by tension spring (32)
The top of tankage (13) is equipped with the second straight slot (14), and second straight slot (14) is connected with installation cavity (21).
6. a kind of anti-theft bolt of Anti-loose as described in claim 1, it is characterised in that：The actuator (3) is close to second
The end of straight slot (14) is equipped with arcwall face (31), and the cross sectional shape of the actuator (3) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089871.3A CN108071644A (en) | 2018-01-30 | 2018-01-30 | A kind of anti-theft bolt of Anti-loose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089871.3A CN108071644A (en) | 2018-01-30 | 2018-01-30 | A kind of anti-theft bolt of Anti-loose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108071644A true CN108071644A (en) | 2018-05-25 |
Family
ID=62157166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810089871.3A Pending CN108071644A (en) | 2018-01-30 | 2018-01-30 | A kind of anti-theft bolt of Anti-loose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071644A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506309A (en) * | 2018-06-04 | 2018-09-07 | 海盐兴隆紧固件有限公司 | A kind of machine screw for twisting into two parts convenient post-treatment |
| CN109854602A (en) * | 2019-02-01 | 2019-06-07 | 嘉兴劳斯龙五金有限公司 | A kind of bolt of strap bolt cap |
| CN110005682A (en) * | 2019-05-06 | 2019-07-12 | 广西玉柴机器股份有限公司 | A kind of Anti-loose bolt component |
| CN110285127A (en) * | 2019-07-25 | 2019-09-27 | 海盐宏合标准件有限公司 | A kind of anti-theft bolt easy to use |
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|---|---|---|---|---|
| GB2095356A (en) * | 1981-03-24 | 1982-09-29 | Groppo Domenico | Antitheft device for bolts or nuts |
| CN2514163Y (en) * | 2001-11-07 | 2002-10-02 | 王德全 | Dogbolt |
| CN2588112Y (en) * | 2001-11-28 | 2003-11-26 | 郑州铁路新科机车车辆配件有限公司 | Check screw |
| CN2667230Y (en) * | 2003-01-15 | 2004-12-29 | 王德勇 | Fastening bolt against unauthorised operation |
| US20090003960A1 (en) * | 2007-06-26 | 2009-01-01 | Chen-Mao Lin | Bolt and Washer Assembly Having Self-Locking and Burglarproof Functions |
| 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 |
| CN206111805U (en) * | 2016-09-19 | 2017-04-19 | 浙江亦宸五金有限公司 | Locking type theftproof bolt |
| CN106870544A (en) * | 2017-02-11 | 2017-06-20 | 东莞市立信华五金科技有限公司 | A kind of anti-theft bolt easy to assemble and its special dismantling device |
| CN206738347U (en) * | 2017-03-25 | 2017-12-12 | 温州市胜隆标准件制造有限公司 | A kind of anti-theft bolt |
| CN207879811U (en) * | 2018-01-30 | 2018-09-18 | 海盐储鑫紧固件厂 | A kind of anti-theft bolt of Anti-loose |
-
2018
- 2018-01-30 CN CN201810089871.3A patent/CN108071644A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2095356A (en) * | 1981-03-24 | 1982-09-29 | Groppo Domenico | Antitheft device for bolts or nuts |
| CN2514163Y (en) * | 2001-11-07 | 2002-10-02 | 王德全 | Dogbolt |
| CN2588112Y (en) * | 2001-11-28 | 2003-11-26 | 郑州铁路新科机车车辆配件有限公司 | Check screw |
| CN2667230Y (en) * | 2003-01-15 | 2004-12-29 | 王德勇 | Fastening bolt against unauthorised operation |
| US20090003960A1 (en) * | 2007-06-26 | 2009-01-01 | Chen-Mao Lin | Bolt and Washer Assembly Having Self-Locking and Burglarproof Functions |
| CN206111805U (en) * | 2016-09-19 | 2017-04-19 | 浙江亦宸五金有限公司 | Locking type theftproof 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 |
| CN106870544A (en) * | 2017-02-11 | 2017-06-20 | 东莞市立信华五金科技有限公司 | A kind of anti-theft bolt easy to assemble and its special dismantling device |
| CN206738347U (en) * | 2017-03-25 | 2017-12-12 | 温州市胜隆标准件制造有限公司 | A kind of anti-theft bolt |
| CN207879811U (en) * | 2018-01-30 | 2018-09-18 | 海盐储鑫紧固件厂 | A kind of anti-theft bolt of Anti-loose |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506309A (en) * | 2018-06-04 | 2018-09-07 | 海盐兴隆紧固件有限公司 | A kind of machine screw for twisting into two parts convenient post-treatment |
| CN108506309B (en) * | 2018-06-04 | 2023-10-03 | 海盐兴隆紧固件股份有限公司 | Machine screw with convenient screw-off post-treatment |
| CN109854602A (en) * | 2019-02-01 | 2019-06-07 | 嘉兴劳斯龙五金有限公司 | A kind of bolt of strap bolt cap |
| CN110005682A (en) * | 2019-05-06 | 2019-07-12 | 广西玉柴机器股份有限公司 | A kind of Anti-loose bolt component |
| CN110285127A (en) * | 2019-07-25 | 2019-09-27 | 海盐宏合标准件有限公司 | A kind of anti-theft bolt easy to use |
| CN110285127B (en) * | 2019-07-25 | 2024-03-01 | 海盐宏合标准件有限公司 | Antitheft bolt convenient to use |
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Effective date of abandoning: 20240816 |
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