CN110671413A - Anti-loosening screw rod - Google Patents
Anti-loosening screw rod Download PDFInfo
- Publication number
- CN110671413A CN110671413A CN201910927327.6A CN201910927327A CN110671413A CN 110671413 A CN110671413 A CN 110671413A CN 201910927327 A CN201910927327 A CN 201910927327A CN 110671413 A CN110671413 A CN 110671413A
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- fixing
- screw rod
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- open
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- 230000002265 prevention Effects 0.000 claims abstract description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a loosening prevention screw rod, which comprises: a screw assembly; the screw assembly includes a screw body and a fixing portion. The anti-loosening screw rod provided by the invention has the advantages that the screw nut main body is not contacted with an installed object, the first semi-open type screw sleeve and the second semi-open type screw sleeve are contacted with the installed object, a transverse force generated when the object vibrates acts on the first semi-open type screw sleeve and the second semi-open type screw sleeve, the first lug and the second lug on the matched fixing part of the first groove and the second groove are relatively transversely limited, so that the first lug and the second lug do not transversely move relative to the screw rod, meanwhile, the screw nut component is transversely limited by matching the first limiting groove and the second limiting groove through the two first rollers, so that the relative transverse displacement between the screw nut component and the first semi-open type screw sleeve and the second semi-open type screw sleeve is not easy to generate, and the screw rod component is more stable when being matched with the screw nut component for fixing and cannot loosen.
Description
Technical Field
The invention relates to the field of screws, in particular to an anti-loosening screw.
Background
The screw rod is a cylinder with a spiral groove cut on the outer surface or a cone with a conical spiral groove cut on the outer surface, and the screw rod is provided with different heads.
The screw usually cooperates with the nut to fix the firmware, but at present most screws can directly or indirectly contact with the fixed object surface after the nut is screwed, and when the matched thread and the fastener supporting surface directly move relatively, the self-loosening phenomenon of the screwed fastener can occur. When the lateral force acting on the coupling element exceeds the frictional resistance caused by the pretension, a relative movement takes place. In repeated lateral movements, such a mechanism can cause the fastener to loosen, eventually causing the nut to loosen, resulting in unstable retention of the article.
Therefore, it is necessary to provide a screw with a locking function to solve the above problems.
Disclosure of Invention
The invention provides a loosening-preventing screw rod, which solves the problem that most screw rods directly or indirectly contact the surface of a fixed object after a screw cap is screwed, and a screwed fastener can automatically loosen when a matched thread and a supporting surface of the fastener directly move relatively. When the lateral force acting on the coupling element exceeds the frictional resistance caused by the pretension, a relative movement takes place. In repeated lateral movements, such a mechanism can lead to loosening of the fastener, ultimately leading to problems with loosening of the nut.
In order to solve the technical problem, the invention provides a loosening prevention screw rod, which comprises: a screw assembly;
the screw assembly comprises a screw main body and a fixing part, and a first lug and a second lug are fixedly connected to two sides of the top and two sides of the bottom of the surface of the fixing part respectively;
the first fixing sleeve assembly is sleeved on the surface of the fixing part and comprises a first semi-open threaded sleeve, and tooth blocks are arranged at the bottoms of two sides of the first semi-open threaded sleeve;
the second fixing sleeve assembly is sleeved on the surface of the fixing part and located on the lower side of the second fixing sleeve assembly, the second fixing sleeve assembly comprises a second semi-open type threaded sleeve, tooth grooves are formed in the bottoms of two sides of the second semi-open type threaded sleeve, and when the first fixing sleeve assembly and the second fixing sleeve assembly for searching books are sleeved on the fixing part, the tooth blocks are meshed with the tooth grooves;
the tooth block and the first semi-open type threaded sleeve are integrally formed, the number of the tooth block corresponds to that of the tooth grooves, the first semi-open type threaded sleeve and the second semi-open type threaded sleeve form a threaded sleeve when the tooth block is meshed with the tooth grooves, and the inner diameter of the threaded sleeve is the same as the straight line of the fixing part;
a nut assembly threaded on the surfaces of the first and second semi-open thread bushings.
Preferably, the first arc-shaped block is fixedly connected to the left side of the top of the first semi-open type threaded sleeve, the first limit groove is formed in one side of the first arc-shaped block, the second arc-shaped block is fixedly connected to the left side of the bottom of the second semi-open type threaded sleeve, and the second limit groove is formed in one side of the second arc-shaped block.
Preferably, the middle of the left side and the middle of the right side of the inner surface of the first semi-open type threaded sleeve are provided with first grooves matched with the first convex blocks, and the middle of the left side and the right side of the inner surface of the second semi-open type threaded sleeve are provided with second grooves matched with the second convex blocks.
Preferably, when the first fixing sleeve assembly and the second fixing sleeve assembly are both sleeved on the fixing portion, the two first bumps are respectively located inside the two first grooves, and the two second bumps are respectively located inside the two second grooves.
Preferably, the nut component comprises a nut body, the fixing holes are formed in the two front sides of the nut body, and one side of the inner surface of each fixing hole is fixedly connected with a first ball through a first elastic piece.
Preferably, when the nut component is screwed on the leftmost side of the surfaces of the first semi-open type thread bushing and the second semi-open type thread bushing, the two first balls are respectively positioned inside the first limiting groove and the second limiting groove.
Preferably, the internal thread hole has all been seted up to the positive left and right sides of nut main part, the downthehole internal thread threaded connection of internal thread has first fixing bolt, works as nut component threaded connection in during the leftmost side on first semi-open thread bush and second semi-open thread bush surface, two first fixing bolt's one end is located the inside of first spacing groove and second spacing groove respectively.
Preferably, the through-hole has all been seted up to the positive both sides of nut main part, one side of through-hole internal surface is provided with the internal thread, the inside of through-hole is passed through internal thread threaded connection has second fixing bolt, the one end of second fixing bolt just is located the inside fixedly connected with second elastic component of through-hole, the one end fixedly connected with second ball of second elastic component.
Preferably, when the nut component is screwed on the leftmost side of the surfaces of the first semi-open type thread bushing and the second semi-open type thread bushing, the two first balls are respectively positioned inside the first limiting groove and the second limiting groove.
Preferably, the surface of the screw body is provided with an external thread.
Compared with the related art, the anti-loosening screw rod provided by the invention has the following beneficial effects:
the invention provides a loosening-proof screw rod, which is characterized in that a fixing part is arranged on a screw rod main body and is matched with a first fixing sleeve component, a second fixing sleeve component and a nut component for fixed installation, so that the nut main body cannot contact with an installed object, a first semi-open type threaded sleeve and a second semi-open type threaded sleeve contact with the installed object, transverse force generated when the object vibrates acts on the first semi-open type threaded sleeve and the second semi-open type threaded sleeve, the first semi-open type threaded sleeve and the second semi-open type threaded sleeve are matched with a first lug and a second lug on the fixing part through a first groove and a second groove for relative transverse limiting, so that the first semi-open type threaded sleeve and the second semi-open type threaded sleeve cannot transversely move relative to each other, meanwhile, the nut component is matched with the first limiting groove and the second limiting groove through two first rollers for transverse limiting, so that the nut component, the first semi-open type threaded sleeve and the second semi-open type threaded sleeve are not, through double-deck spacing, more stable when making screw rod subassembly cooperation nut subassembly fixed can not take place not hard up.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a locking screw provided by the present invention;
FIG. 2 is a schematic structural view of the screw assembly shown in FIG. 1;
FIG. 3 is a schematic structural view of the first retaining sleeve assembly shown in FIG. 1;
FIG. 4 is a schematic structural view of the second retaining sleeve assembly shown in FIG. 1;
FIG. 5 is a side view of the first retaining sleeve assembly shown in FIG. 1;
FIG. 6 is a structural view of the nut assembly shown in FIG. 1;
FIG. 7 is a cross-sectional view of the nut assembly shown in FIG. 1;
FIG. 8 is a schematic structural view of a second embodiment of a locking screw provided in the present invention;
FIG. 9 is another structural schematic view of the first fixing kit of the anti-loosening screw rod provided by the present invention;
FIG. 10 is a schematic view of another structure of a second fixing kit of the anti-loosening screw rod provided by the invention;
FIG. 11 is a schematic structural view of a third embodiment of a locking screw according to the present invention;
fig. 12 is a schematic structural view of a fourth embodiment of the anti-loosening screw rod provided by the invention.
Reference numbers in the figures: 1. the screw assembly, 101, the screw main body, 102, the fixed part, 103, the first lug, 104, the second lug, 2, the first fixed sleeve assembly, 21, the first semi-open type thread bushing, 22, the first groove, 23, the first arc-shaped block, 24, the first limit groove, 25, the tooth block, 3, the second fixed sleeve assembly, 31, the second semi-open type thread bushing, 32, the second groove, 33, the second arc-shaped block, 34, the second limit groove, 35, the tooth groove, 4, the nut assembly, 41, the nut main body, 42, the fixed orifices, 43, the first ball, 44, the first elastic member, 5, the internal thread hole, 6, the first fixing bolt, 7, the through hole, 8, the internal thread, 9, the second fixing bolt, 10, the external thread, 11, the second elastic member, 12, the second ball.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7 in combination, wherein fig. 1 is a schematic structural view of a first embodiment of a locking screw according to the present invention; FIG. 2 is a schematic structural view of the screw assembly shown in FIG. 1; FIG. 3 is a schematic structural view of the first retaining sleeve assembly shown in FIG. 1; FIG. 4 is a schematic structural view of the second retaining sleeve assembly shown in FIG. 1; FIG. 5 is a side view of the first retaining sleeve assembly shown in FIG. 1; figure 6 is a structural view of the nut assembly shown in figure 1 figure 7 is a cross-sectional view of the nut assembly shown in figure 1. Locking screw rod that moves includes: a screw assembly 1;
the screw assembly 1 comprises a screw body 101 and a fixing part 102, wherein a first lug 103 and a second lug 104 are fixedly connected to two sides of the top and two sides of the bottom of the surface of the fixing part 102 respectively;
the length specification of the screw body 101 is the same as the depth of the mounting hole formed on the object to be fixed.
The diameter of the fixing part 102 is smaller than that of the screw body 101, the opposite sides of the first lug 103 and the second lug 104 are respectively fixedly connected with the screw body 101, and the first lug 103, the second lug 104, the screw body 101 and the fixing part 102 are integrated.
The first fixing sleeve component 2 is sleeved on the surface of the fixing part 102, the first fixing sleeve component 2 comprises a first semi-open threaded sleeve 21, and the bottom parts of two sides of the first semi-open threaded sleeve 21 are provided with tooth blocks 25;
the second fixing sleeve component 3 is sleeved on the surface of the fixing part 102 and located on the lower side of the second fixing sleeve component 3, the second fixing sleeve component 3 comprises a second semi-open type threaded sleeve 31, tooth grooves 35 are formed in the bottoms of two sides of the second semi-open type threaded sleeve 31, and when the first fixing sleeve component 2 and the second fixing sleeve component 3 for searching books are sleeved on the fixing part 102, the tooth blocks 25 are meshed with the tooth grooves 35;
and a nut assembly 4, wherein the nut assembly 4 is in threaded connection with the surfaces of the first semi-open threaded sleeve 21 and the second semi-open threaded sleeve 31.
The first arc piece 23 of left side fixedly connected with at first semi-open thread bush 21 top, first spacing groove 24 has been seted up to one side of first arc piece 23, the left side fixedly connected with second arc piece 33 of second semi-open thread bush 31 bottom, second spacing groove 34 has been seted up to one side of second arc piece 33.
The middle of the left side and the right side of the inner surface of the first semi-open type threaded sleeve 21 are provided with first grooves 22 matched with the first convex blocks 103, and the middle of the left side and the right side of the inner surface of the second semi-open type threaded sleeve 31 are provided with second grooves 32 matched with the second convex blocks 104.
When the first fixing sleeve assembly 2 and the second fixing sleeve assembly 3 are both sleeved on the fixing portion 102, the two first protrusions 103 are respectively located inside the two first grooves 22, and the two second protrusions 104 are respectively located inside the two second grooves 32.
Nut component 4 includes nut body 41, the fixed orifices 42 have all been seted up to the positive both sides of nut body 41, the first ball 43 of first elastic component 44 fixedly connected with is passed through to one side of fixed orifices 42 internal surface.
The size of the ball 43 is matched with the size of the first limiting groove 24 and the second limiting groove 34, after installation, the part of the ball 43 located inside the first limiting groove 24 and the second limiting groove 34 is smaller than one half of the whole ball 43, the ball 43 and the first elastic piece 44 are fixed through welding without limitation to welding, the first elastic piece 44 is a spring or other elastic pieces, and the nut body 41 is a hexagonal nut without limitation to a hexagonal nut.
When the nut component 4 is screwed on the leftmost surface of the first and second half- open thread bushings 21 and 31, the two first balls 43 are respectively located inside the first and second limiting grooves 24 and 34.
The working principle of the anti-loosening screw rod provided by the invention is as follows:
correspondingly inserting the screw assembly 1 into a screw hole on an object to be fixed, wherein after the screw assembly 1 is inserted, the fixing part 102 just leaks out, then correspondingly sleeving the first semi-open type threaded sleeve 21 and the second semi-open type threaded sleeve 31 on the fixing part 102 of the screw assembly 1, so that the tooth block 25 is correspondingly meshed with the tooth groove 35, and meanwhile, the first lug 103 and the second lug 104 on the upper side and the lower side of the surface of the fixing part 102 are respectively positioned in the first groove 22 and the second groove 32;
then, the nut body 41 is screwed on the surfaces of the first half-open thread bush 21 and the second half-open thread bush 31, when the nut body 41 is screwed to the position where it can not be screwed, the two through holes 7 on the nut body 41 correspond to the first limiting groove 24 and the second limiting groove 34 respectively, and the two balls 43 are pushed to the inside of the first limiting groove 24 and the second limiting groove 34 respectively through the action of the two first elastic members 44.
Compared with the related art, the anti-loosening screw rod provided by the invention has the following beneficial effects:
the screw rod main body 101 is provided with the fixing part 102 which is matched with the first fixing sleeve component 2, the second fixing sleeve component 3 and the nut component 4 for fixed installation, so that the nut main body 41 can not contact with an installed object, the first semi-open type thread bushing 21 and the second semi-open type thread bushing 31 can contact with the installed object, transverse force generated when the object vibrates acts on the first semi-open type thread bushing 21 and the second semi-open type thread bushing 31, the first semi-open type thread bushing 21 and the second semi-open type thread bushing 31 are matched with the first lug 103 and the second lug 104 on the fixing part 102 through the first groove 22 and the second groove 32 for relative transverse limiting, so that the nut component 4 and the first semi-open type thread bushing 21 and the second semi-open type thread bushing 31 can not generate transverse relative displacement, meanwhile, the nut component 4 is matched with the first limiting groove 24 and the second limiting groove 34 for transverse limiting through the two first rollers 43 for the nut component 4, so that the nut component 4 and the first semi-open type thread bushing 21 and the second semi-open, through double-deck spacing, more stable when making screw rod subassembly 1 cooperation nut component 4 fixed can not take place not hard up.
Second embodiment
Please refer to fig. 8, fig. 9 and fig. 10 in combination.
Third embodiment
Please refer to fig. 11.
Through-hole 7 has all been seted up to the positive both sides of nut main part 41, one side of through-hole 7 internal surface is provided with internal thread 8, the inside of through-hole 7 passes through internal thread 8 threaded connection has second fixing bolt 9, the one end of second fixing bolt 9 just is located the inside fixedly connected with second elastic component 11 of through-hole 7, the one end fixedly connected with second ball 12 of second elastic component 11.
The second elastic member 11 is a spring or other elastic member, the second elastic member 11 and the second ball 12 are fixed by welding, but not limited to welding, and the internal thread is located on one side of the middle of the inner surface of the through hole 7.
When the nut component 4 is screwed on the leftmost surface of the first and second half- open thread bushings 21 and 31, the two first balls 43 are respectively located inside the first and second limit grooves 24 and 34.
The first limiting groove 24 and the second limiting groove 34 are the same as those in the first embodiment, when the nut body 41 is screwed on the surfaces of the first half-open type threaded sleeve 21 and the second half-open type threaded sleeve 31, when the nut body 41 is screwed to the extent that the nut body cannot be screwed, the two through holes 7 in the nut body 41 correspond to the first limiting groove 24 and the second limiting groove 34 respectively, at this time, the second fixing bolt 9 can be rotated, the two second fixing bolts 9 push the second elastic member 11, the two second elastic members 11 push the two second balls 12 to enter the first limiting groove 24 and the second limiting groove 34 respectively, the second fixing bolt 9 continues to be rotated, the second fixing bolt 9 compresses the second elastic member 11, and the two second balls 12 are more stably located in the first limiting groove 24 and the second limiting groove 34 through the reaction force of the second elastic member 11.
Fourth embodiment
Please refer to fig. 12.
The surface of the screw body 101 is provided with external threads 10.
The external thread 10 is arranged on the surface of the screw body 101, the screw is suitable for a threaded hole in an object to be fixed, and the external thread 10 is in threaded connection with the threaded hole, so that one more anti-loosening measure is provided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A loosening prevention screw, comprising: a screw assembly;
the screw assembly comprises a screw main body and a fixing part, and a first lug and a second lug are fixedly connected to two sides of the top and two sides of the bottom of the surface of the fixing part respectively;
the first fixing sleeve assembly is sleeved on the surface of the fixing part and comprises a first semi-open threaded sleeve, and tooth blocks are arranged at the bottoms of two sides of the first semi-open threaded sleeve;
the second fixing sleeve assembly is sleeved on the surface of the fixing part and located on the lower side of the second fixing sleeve assembly, the second fixing sleeve assembly comprises a second semi-open type threaded sleeve, tooth grooves are formed in the bottoms of two sides of the second semi-open type threaded sleeve, and when the first fixing sleeve assembly and the second fixing sleeve assembly for searching books are sleeved on the fixing part, the tooth blocks are meshed with the tooth grooves;
a nut assembly threaded on the surfaces of the first and second semi-open thread bushings.
2. The anti-loosening screw rod according to claim 1, wherein a first arc-shaped block is fixedly connected to the left side of the top of the first semi-open threaded sleeve, a first limit groove is formed in one side of the first arc-shaped block, a second arc-shaped block is fixedly connected to the left side of the bottom of the second semi-open threaded sleeve, and a second limit groove is formed in one side of the second arc-shaped block.
3. The anti-loosening screw rod according to claim 1, wherein first grooves adapted to the first protrusions are formed in the middles of the left side and the right side of the inner surface of the first semi-open type thread bush, and second grooves adapted to the second protrusions are formed in the middles of the left side and the right side of the inner surface of the second semi-open type thread bush.
4. The anti-loosening screw rod according to claim 3, wherein when the first and second fixing sleeve assemblies are both sleeved on the fixing portion, the two first protrusions are respectively located inside the two first grooves, and the two second protrusions are respectively located inside the two second grooves.
5. The anti-loosening screw rod according to claim 1, wherein the nut assembly comprises a nut body, fixing holes are formed in both sides of the front surface of the nut body, and a first ball is fixedly connected to one side of the inner surface of each fixing hole through a first elastic member.
6. The anti-loosening screw rod according to claim 5, wherein the two first balls are respectively located inside the first and second retaining grooves when the nut assembly is threadedly coupled to the leftmost surfaces of the first and second semi-open thread bushings.
7. The anti-loosening screw rod according to claim 1, wherein the nut body has internal threaded holes formed on both left and right sides of the front surface thereof, first fixing bolts are threadedly connected to the internal threaded holes, and when the nut assembly is threadedly connected to the leftmost surfaces of the first and second semi-open thread bushes, one ends of the two first fixing bolts are respectively located inside the first and second limiting grooves.
8. The anti-loosening screw rod according to claim 1, wherein through holes are formed in both sides of the front surface of the nut body, internal threads are formed in one side of the inner surface of each through hole, a second fixing bolt is connected to the inside of each through hole through the internal threads, a second elastic member is fixedly connected to one end of each second fixing bolt and located inside each through hole, and a second ball is fixedly connected to one end of each second elastic member.
9. The anti-loosening screw rod according to claim 6, wherein when the nut assembly is threadedly coupled to the leftmost surfaces of the first and second semi-open thread bushings, the two first balls are located inside the first and second retaining grooves, respectively.
10. The anti-loosening screw rod as claimed in claim 1, wherein the surface of the screw body is provided with an external thread.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910927327.6A CN110671413A (en) | 2019-09-27 | 2019-09-27 | Anti-loosening screw rod |
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CN201910927327.6A CN110671413A (en) | 2019-09-27 | 2019-09-27 | Anti-loosening screw rod |
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CN201910927327.6A Pending CN110671413A (en) | 2019-09-27 | 2019-09-27 | Anti-loosening screw rod |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB595473A (en) * | 1945-05-11 | 1947-12-05 | Robert Eardley Beswick | Improvements in or relating to quick release nuts |
US5226678A (en) * | 1987-03-31 | 1993-07-13 | Petranto Joseph J | Split gland |
US5921734A (en) * | 1997-09-25 | 1999-07-13 | Ishigame Kogyo Co., Ltd. | Lock nut device |
US6180882B1 (en) * | 1999-01-19 | 2001-01-30 | Thomas & Betts, International | Single and dual cable seal system |
CN203560259U (en) * | 2013-11-28 | 2014-04-23 | 海安县联源机械制造有限公司 | Combined check nut |
CN204387070U (en) * | 2015-01-15 | 2015-06-10 | 常州市兴维邦精密机械制造有限公司 | Boats and ships backing-up screw |
CN205533689U (en) * | 2016-04-11 | 2016-08-31 | 海盐汇联通用配件有限公司 | Stop nut |
-
2019
- 2019-09-27 CN CN201910927327.6A patent/CN110671413A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB595473A (en) * | 1945-05-11 | 1947-12-05 | Robert Eardley Beswick | Improvements in or relating to quick release nuts |
US5226678A (en) * | 1987-03-31 | 1993-07-13 | Petranto Joseph J | Split gland |
US5921734A (en) * | 1997-09-25 | 1999-07-13 | Ishigame Kogyo Co., Ltd. | Lock nut device |
US6180882B1 (en) * | 1999-01-19 | 2001-01-30 | Thomas & Betts, International | Single and dual cable seal system |
CN203560259U (en) * | 2013-11-28 | 2014-04-23 | 海安县联源机械制造有限公司 | Combined check nut |
CN204387070U (en) * | 2015-01-15 | 2015-06-10 | 常州市兴维邦精密机械制造有限公司 | Boats and ships backing-up screw |
CN205533689U (en) * | 2016-04-11 | 2016-08-31 | 海盐汇联通用配件有限公司 | Stop nut |
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