CN111120485A - Fastener with double fixing functions and using method thereof - Google Patents

Fastener with double fixing functions and using method thereof Download PDF

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Publication number
CN111120485A
CN111120485A CN201911387951.8A CN201911387951A CN111120485A CN 111120485 A CN111120485 A CN 111120485A CN 201911387951 A CN201911387951 A CN 201911387951A CN 111120485 A CN111120485 A CN 111120485A
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China
Prior art keywords
screw rod
fastener
bolt head
connecting block
rod
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CN201911387951.8A
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Chinese (zh)
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CN111120485B (en
Inventor
韩小悦
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Jiangsu Better Special Alloy Co ltd
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Jiangsu Better Special Alloy Co ltd
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Priority to CN201911387951.8A priority Critical patent/CN111120485B/en
Publication of CN111120485A publication Critical patent/CN111120485A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention discloses a fastener with double fixing functions and a using method thereof, and the fastener comprises a bolt head II, a bolt head I and a connecting block, wherein a fixing hole is formed in the middle of the upper end of the bolt head II, a spiral sleeve is nested in the fixing hole, a screw rod I is nested in the spiral sleeve, a fixing end is formed at the connecting position of the screw rod I and the spiral sleeve, the bolt head I is welded at the upper end of the screw rod I, a thread groove I is formed in the middle of the screw rod I, the connecting block is screwed at the upper end of the thread groove I, and connecting rods are rotatably connected to two ends of the connecting block. Has the advantages that: the double-fixing bolt head is novel in structure and convenient and fast to operate, the to-be-clamped piece can be doubly fixed by arranging the bolt head II, the bolt head I, the connecting block and the connecting rod, the fastening effect of the fastening piece is effectively improved, the phenomenon that the fastening piece is loosened is avoided, the manual inspection work can be saved, and the labor cost is saved.

Description

Fastener with double fixing functions and using method thereof
Technical Field
The invention relates to the technical field of fasteners, in particular to a fastener with double fixing functions and a using method thereof.
Background
The fastener is a mechanical part which is used for fastening connection and has extremely wide application.
The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts.
Present fastener is mostly only to have the single fixed function, it is not hard up just easily after a long time to be in good order, need artifical indefinite period to inspect and screw up, fixed effect is relatively poor, and increase the cost of labor, and the flexibility of fastener is relatively poor, most all be fixed structure, replaceability is low, current fastener needs oneself installation bullet pad, flat pad when fixed in addition, the operation is more loaded down with trivial details, the installation time cost is longer, the practicality is low, consequently, the fastener that has dual fixed function is urgently needed to solve current problem.
Disclosure of Invention
The present invention is directed to solving the above problems and providing a fastener with dual fastening functions and a method of using the same.
The invention realizes the purpose through the following technical scheme:
the utility model provides a fastener with dual fixed function, includes bolt head two, bolt head one and connecting block, the shaping of two upper end middle parts of bolt head has the fixed orifices, the nested scroll cover that has in the fixed orifices, the nested screw rod one that has in the scroll cover, screw rod one with the shaping of scroll cover hookup location department has the stiff end, the welding of a screw rod upper end has bolt head one, a screw rod middle part shaping has thread groove one, thread groove one upper end has connect soon the connecting block, the connecting block both ends are rotated and are connected with the connecting rod.
Furthermore, the first thread groove is close to the fixing nut is screwed below the connecting block, an internal thread groove is formed in the middle of the connecting block, and connecting grooves are formed in two sides of the connecting block.
Through adopting above-mentioned technical scheme, through the fixed orifices be convenient for with the scroll cover nested install in the bolt head two, then install screw rod one in the scroll cover, screw rod one with the shaping of scroll cover hookup location department has the stiff end, can make screw rod one is at the scroll cover internal rotation, through the first convenient rotation of bolt head screw rod one, and then drive the connecting block passes through thread groove one goes up and down along screw rod one, makes things convenient for the centre gripping fastener, through fixation nut can with screw rod one is fixed on the bolt head one, improves the fastening nature of device, through the thread groove makes the connecting block with screw rod one connects soon, through the spread groove is convenient for install the connecting rod.
Furthermore, another two sides of the connecting block are formed with pin shaft holes in a penetrating mode, and pin shafts are inserted in the pin shaft holes.
By adopting the technical scheme, the pin shaft is inserted into the pin shaft hole, and then the connecting rod is connected to the connecting block, so that the connecting rod can rotate, and the flexibility of the device is improved.
Furthermore, one side of the connecting rod is rotatably connected with a fixing rod, a connecting hole is formed in one end, connected with the connecting rod, of the fixing rod, a short shaft is inserted in the connecting hole, and a hook head is formed at the other end of the fixing rod.
By adopting the technical scheme, the connecting rod is connected with the fixed rod, the short shaft is inserted into the connecting hole, the fixed rod is connected with the connecting rod, so that the fixed rod can flexibly rotate, the hook head can hook a fastener to be fastened, the fastening and fixing effect of the fastener is improved, and looseness is effectively prevented.
Furthermore, a second screw rod is welded at the bottom end of the second bolt head, and an elastic cushion and a flat cushion are nested on the second screw rod.
By adopting the technical scheme, the second screw rod is convenient to connect with the fastener to be added.
Furthermore, the flat pad is positioned below the elastic pad, and the two bottom ends of the bolt head are magnetized.
By adopting the technical scheme, the bolt head II is magnetized, so that the elastic pad and the flat pad can be adsorbed, and the elastic pad and the flat pad are nested and installed on the screw rod II.
Furthermore, a jack is formed in the position, close to the flat pad, of the second screw rod, and a plug pin is inserted into the jack.
Through adopting above-mentioned technical scheme, through inciting somebody to action the bolt is inserted in the jack, and then right the bullet pad with flat the pad is fixed, avoids the bullet pad with flat the pad drops, improves the convenience of use, saves the time of on-the-spot installation, improves the installation effectiveness.
Further, a second thread groove is formed at the lower end of the second screw rod.
By adopting the technical scheme, the second screw rod is fastened on the to-be-clamped piece through the second thread groove.
Furthermore, a conical head is formed at the bottom end of the screw rod.
By adopting the technical scheme, the conical head is convenient for the second screw rod to be inserted into the bolt hole, so that the use convenience is improved.
The invention has the beneficial effects that:
1. in order to solve the problems that most of the existing fasteners only have a single fixing function, are easy to loosen after a long time, need to be inspected and screwed up manually and irregularly, have poor fixing effect and increase labor cost, the invention has novel and small structural design, can be used for double fixing of a to-be-clamped piece by arranging the bolt head II, the bolt head I, the connecting block and the connecting rod, effectively increases the fastening effect of the fasteners, avoids the loosening phenomenon of the fasteners, can save the work of manual inspection and saves the labor cost;
2. in order to solve the problems that the flexibility of the fastening piece is poor, most of the fastening pieces are of fixed structures, and the replaceability is low, the flexibility of the fastening piece can be improved by arranging the short shaft, the pin shaft, the connecting hole and the fixing rod, so that parts can be replaced conveniently according to the field installation requirement, the use range of the fastening piece is enlarged, and the practicability of the device is improved;
3. in order to solve the problems that the conventional fastener needs to install the elastic cushion and the flat cushion by itself when being fixed, the operation is complex, the installation time cost is long, and the practicability is low, the elastic cushion and the flat cushion can be embedded and installed on the second screw rod by magnetizing the second bolt head, the use convenience is improved, the field installation time is saved, and meanwhile, the elastic cushion and the flat cushion can be effectively prevented from falling off by arranging the inserting holes and the inserting pins, so that the installation efficiency is improved.
Drawings
FIG. 1 is a front view of a fastener of the present invention having dual fastening functions;
FIG. 2 is a connection relation diagram of a first bolt head, a first screw rod and a first thread groove in the fastener with double fixing functions;
FIG. 3 is a connection relation diagram of a second bolt head, a second screw rod and a second thread groove in the fastener with the double fixing function;
FIG. 4 is a view showing the connection relationship between a first screw and a second bolt head in the fastener with double fixing function according to the present invention;
FIG. 5 is a schematic structural view of a connecting block in a fastener with a double fixing function according to the present invention;
FIG. 6 is a front view of a fixing hook of a fastener having a dual fixing function according to the present invention;
fig. 7 is a top view of a bolt head II in the fastener with double fixing function according to the invention.
The reference numerals are explained below:
1. a first bolt head; 2. a first screw rod; 3. a pin shaft; 4. a pin shaft hole; 5. a connecting rod; 6. fixing the rod; 7. connecting blocks; 8. fixing a nut; 9. connecting grooves; 10. a hook head; 11. a second bolt head; 12. a spring pad; 13. flattening the cushion; 14. a jack; 15. a bolt; 16. a second screw; 17. a second thread groove; 18. a conical head; 19. an internal thread groove; 20. connecting holes; 21. a minor axis; 22. a fixed end; 23. a fixing hole; 24. a spiral sleeve; 25. and a first thread groove.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 7, a fastener with dual fixing functions includes a bolt head two 11, a bolt head one 1 and a connecting block 7, a fixing hole 23 is formed in the middle of the upper end of the bolt head two 11, a screw sleeve 24 is nested in the fixing hole 23, a screw rod one 2 is nested in the screw sleeve 24, a fixing end 22 is formed at the connecting position of the screw rod one 2 and the screw sleeve 24, the bolt head one 1 is welded to the upper end of the screw rod one 2, a screw groove one 25 is formed in the middle of the screw rod one 2, the connecting block 7 is screwed to the upper end of the screw groove one 25, connecting rods 5 are rotatably connected to both ends of the connecting block 7, the screw sleeve 24 is conveniently nested and installed in the bolt head two 11 through the fixing hole 23, then the screw rod one 2 is installed in the screw sleeve 24, a fixing end 22 is formed at the connecting position of the screw rod one 2 and the screw sleeve 24, the first screw 2 can rotate in the spiral sleeve 24, the first screw 2 is conveniently rotated through the first bolt head 1, and then the connecting block 7 is driven to ascend and descend along the first screw 2 through the first thread groove 25, so that a fastener is conveniently clamped.
In this embodiment, be close to on the thread groove 25 connecting block 7 below has connect fixation nut 8 soon, connecting block 7 middle part shaping has interior thread groove 19, connecting block 7 both sides shaping has spread groove 9, through fixation nut 8 can with screw rod 2 is fixed on bolt head 1, improves the fastening nature of device, through interior thread groove 19 makes connecting block 7 with screw rod 2 connects soon, through spread groove 9 is convenient for install connecting rod 5.
In this embodiment, another both sides of connecting block 7 run through the shaping and have round pin shaft hole 4, it has round pin axle 3 to peg graft in the round pin shaft hole 4, through with peg shaft 3 inserts in the round pin shaft hole 4, and then will connecting rod 5 is connected on connecting block 7, make connecting rod 5 can rotate, increase the flexibility of device.
In this embodiment, connecting rod 5 one side is rotated and is connected with dead lever 6, dead lever 6 with connecting rod 5 is connected one end shaping and has connecting hole 20, it has minor axis 21 to peg graft in the connecting hole 20, the shaping of the 6 other end of dead lever has gib head 10, through connecting rod 5 connects dead lever 6, through dead lever 21 inserts in the connecting hole 20, will dead lever 6 with connecting rod 5 links together, makes dead lever 6 can rotate in a flexible way, through gib head 10 can hook and wait to add the fastener, increases the tight fixed effect of clamp of fastener, effectively prevents to become flexible.
In this embodiment, a second screw 16 is welded at the bottom end of the second bolt head 11, an elastic pad 12 and a flat pad 13 are nested on the second screw 16, and the second screw 16 is convenient for connecting a fastener to be added.
In this embodiment, the flat pad 13 is located below the elastic pad 12, and the bottom end of the bolt head 11 is magnetized, so that the elastic pad 12 and the flat pad 13 can be adsorbed, and the elastic pad 12 and the flat pad 13 are nested and mounted on the second screw 16.
In this embodiment, a jack 14 is formed in the position, close to the flat pad 13, of the second screw 16, a plug 15 is inserted into the jack 14, and the plug 15 is inserted into the jack 14, so that the elastic pad 12 and the flat pad 13 are fixed, the elastic pad 12 and the flat pad 13 are prevented from falling off, the use convenience is improved, the field installation time is saved, and the installation efficiency is improved.
In this embodiment, a second thread groove 17 is formed at the lower end of the second screw 16, and the second screw 16 is fastened to the member to be clamped through the second thread groove 17.
In this embodiment, a tapered head 18 is formed at the bottom end of the second screw 16, and the second screw 16 is conveniently inserted into the bolt hole through the tapered head 18, so that the use convenience is improved.
A method for using a fastener with double fixing functions comprises the following steps: firstly, the screw sleeve 24 is nested and installed in the fixing hole 23 of the bolt head two 11, then the screw rod one 2 is installed in the screw sleeve 24, the fixing end 22 is formed at the connecting position of the screw rod one 2 and the screw sleeve 24, the screw rod one 2 can rotate in the screw sleeve 24, the screw rod one 2 is driven to rotate by rotating the bolt head one 1, the connecting block 7 is screwed with the screw rod one 2 through the internal thread groove 19, so that the connecting block 7 can be lifted along the screw rod one 2 through the thread groove one 25, a fastener is convenient to clamp, the connecting rod 5 is installed in the connecting grooves 9 at two sides of the connecting block 7, then the pin shaft 3 is inserted into the pin shaft hole 4, the connecting rod 5 can rotate, the flexibility of the device is increased, and the connecting rod 5 is inserted into the connecting hole 20 through the end shaft 21, the fixing rod 6 is connected with the connecting rod 5, so that the fixing rod 6 can flexibly rotate, the flexibility of a fastener can be increased, parts can be conveniently replaced according to field installation requirements, the application range of the fastener is increased, the practicability of the device is improved, a fastener to be fastened can be hooked through the hook head 10, the clamping and fixing effect of the fastener is increased, looseness is effectively prevented, the screw rod II 16 is inserted into a bolt hole of the fastener to be fastened in use, the screw rod II 16 can be quickly screwed into the bolt hole through the conical head 18, the elastic pad 12 and the flat pad 13 are nested on the screw rod II 16, the elastic pad 12 and the flat pad 13 are fixed by inserting the bolt 15 into the insertion hole 14, the elastic pad 12 and the flat pad 13 are prevented from falling off in the process of transportation, the use convenience is improved, and the time for field installation of the elastic pad 12 and the flat pad 13 is saved, improve the installation effectiveness, take off when the installation bolt 15, then rotate two bolt heads 11 will two 16 screws of screw rod are on treating the clamping piece, then will hook 10 treats the clamping piece both sides, rotate two 11 messenger of bolt heads screw rod 2 is in rotate on the two 11 bolt heads, make connecting block 7 along screw rod 2 goes up and down, thereby makes the dead lever 6 the hook head 10 presss from both sides tightly treats the clamping piece, then screws up fixation nut 8, fixes screw rod 2, and then treats the clamping piece and carry out double fixation, effectively increases the fastening effect of fastener, avoids the fastener phenomenon that becomes flexible to appear to can save the work of manual inspection, practice thrift the cost of labor.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A fastener with dual fastening functions, characterized in that: including bolt head two (11), bolt head (1) and connecting block (7), bolt head two (11) upper end middle part shaping has fixed orifices (23), nested spiral shell (24) in fixed orifices (23), nested screw rod (2) that have in spiral shell (24), screw rod (2) with spiral shell (24) hookup location department shaping has stiff end (22), the welding of screw rod (2) upper end has bolt head (1), screw rod (2) middle part shaping has thread groove (25), it has soon to connect on thread groove (25) connecting block (7), connecting block (7) both ends are rotated and are connected with connecting rod (5).
2. A fastener having a dual fastening function as claimed in claim 1, wherein: be close to on screw thread groove (25) connecting block (7) below has connect fixation nut (8) soon, connecting block (7) middle part shaping has interior screw thread groove (19), connecting block (7) both sides shaping has spread groove (9).
3. A fastener having a dual fastening function as claimed in claim 1, wherein: the other two sides of the connecting block (7) are formed with pin shaft holes (4) in a penetrating mode, and pin shafts (3) are inserted in the pin shaft holes (4).
4. A fastener having a dual fastening function as claimed in claim 1, wherein: connecting rod (5) one side is rotated and is connected with dead lever (6), dead lever (6) with connecting rod (5) are connected one end shaping and are had connecting hole (20), it has minor axis (21) to peg graft in connecting hole (20), dead lever (6) other end shaping has hook (10).
5. A fastener having a dual fastening function as claimed in claim 1, wherein: the bottom end of the bolt head II (11) is welded with a screw rod II (16), and the elastic pad (12) and the flat pad (13) are nested on the screw rod II (16).
6. A fastener having a dual fastening function according to claim 5, wherein: the flat pad (13) is positioned below the elastic pad (12), and the bottom end of the bolt head II (11) is magnetized.
7. A fastener having a dual fastening function according to claim 5, wherein: and a jack (14) is formed on the second screw rod (16) and is close to the flat pad (13), and a plug pin (15) is inserted in the jack (14).
8. A fastener having a dual fastening function as claimed in claim 1, wherein: and a second thread groove (17) is formed at the lower end of the second screw rod (16).
9. A fastener having a dual fastening function as claimed in claim 1, wherein: a conical head (18) is formed at the bottom end of the second screw rod (16).
10. A method for using a fastener with a double fixing function, which is applied to the fastener with a double fixing function of any one of claims 1 to 9, characterized in that: the screw sleeve (24) is nested and installed in the fixing hole (23) of the bolt head II (11), then the screw rod I (2) is installed in the screw sleeve (24), the fixing end (22) is formed at the connecting position of the screw rod I (2) and the screw sleeve (24), the screw rod I (2) can rotate in the screw sleeve (24), the screw rod I (2) is driven to rotate by rotating the bolt head I (1), the connecting block (7) is screwed with the screw rod I (2) through the inner thread groove (19), so that the connecting block (7) can ascend and descend along the screw rod I (2) through the thread groove I (25), a fastener is convenient to clamp, the connecting rod (5) is installed in the connecting grooves (9) on two sides of the connecting block (7), and then the pin shaft (3) is inserted into the pin shaft hole (4), the connecting rod (5) can rotate, flexibility of the device is increased, the pin shaft (3) is inserted into the connecting hole (20), the fixing rod (6) is connected with the connecting rod (5), the fixing rod (6) can rotate flexibly, flexibility of a fastener can be increased, parts can be replaced conveniently according to field installation requirements, the use range of the fastener is increased, practicability of the device is improved, the hook head (10) can hook a fastener to be fastened, the clamping and fixing effect of the fastener is increased, loosening is effectively prevented, the screw rod (16) is inserted into a bolt hole of the fastener during use, the conical head (18) can enable the screw rod (16) to be screwed into the bolt hole rapidly, the elastic cushion (12) and the flat cushion (13) are embedded on the screw rod (16), and the elastic cushion (12) and the flat cushion (13) are inserted into the bolt hole (14) in pair The fixing device is fixed in a row, the elastic pad (12) and the flat pad (13) are prevented from falling off in the transportation process, the use convenience is improved, the time for installing the elastic pad (12) and the flat pad (13) on site is saved, the installation efficiency is improved, the bolt (15) is taken down when the installation is carried out, then the bolt head (11) is rotated to screw the screw rod (16) on a to-be-clamped piece, then the hook head (10) hooks the two sides of the to-be-clamped piece, the bolt head (11) is rotated to enable the screw rod (2) to rotate on the bolt head (11), the connecting block (7) is made to ascend and descend along the screw rod (2), so that the hook head (10) of the fixing rod (6) clamps the to-be-clamped piece, then the fixing nut (8) is screwed, the screw rod (2) is fixed, the to-be-doubly fixed to the to-clamped piece, and the fastening effect of the fastening, the phenomenon that the fastening piece loosens is avoided, the manual inspection work can be saved, and the labor cost is saved.
CN201911387951.8A 2019-12-30 2019-12-30 Fastener with double fixing functions and using method thereof Active CN111120485B (en)

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CN111120485A true CN111120485A (en) 2020-05-08
CN111120485B CN111120485B (en) 2024-06-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113983060A (en) * 2020-07-27 2022-01-28 北京安和博控科技有限公司 Anti-drop fastening screw
CN117513650A (en) * 2023-12-19 2024-02-06 河北佳涛建筑工程有限公司 Assembled antidetonation steel construction

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JP2017032114A (en) * 2015-08-05 2017-02-09 新中央工業株式会社 Blind bolt type fastener
CN206617409U (en) * 2017-04-07 2017-11-07 苏州东吾丰机械科技有限公司 A kind of adjustable movable joint bolt assembly
US20170370399A1 (en) * 2016-06-23 2017-12-28 San-He Chang Fastener for Corrugated Sheet
CN107630910A (en) * 2016-07-18 2018-01-26 天津市天龙得冷成型部件有限公司 Removable removing nut with fastening connection piece
CN207195418U (en) * 2017-09-23 2018-04-06 深圳市江为五金螺丝有限公司 A kind of safety set screw for automobile chassis
CN108161815A (en) * 2017-12-21 2018-06-15 合肥市春华起重机械有限公司 A kind of bolt punching easy to use
CN209430576U (en) * 2018-12-28 2019-09-24 王卫国 A kind of allosome reducing derotation bolt fastening component of never becoming loose
CN211901219U (en) * 2019-12-30 2020-11-10 江苏百德特种合金有限公司 Fastener with dual fixing function

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017032114A (en) * 2015-08-05 2017-02-09 新中央工業株式会社 Blind bolt type fastener
US20170370399A1 (en) * 2016-06-23 2017-12-28 San-He Chang Fastener for Corrugated Sheet
CN107630910A (en) * 2016-07-18 2018-01-26 天津市天龙得冷成型部件有限公司 Removable removing nut with fastening connection piece
CN106089910A (en) * 2016-08-25 2016-11-09 安徽六方重联机械股份有限公司 The anti-loosening bolt of double locking
CN206617409U (en) * 2017-04-07 2017-11-07 苏州东吾丰机械科技有限公司 A kind of adjustable movable joint bolt assembly
CN207195418U (en) * 2017-09-23 2018-04-06 深圳市江为五金螺丝有限公司 A kind of safety set screw for automobile chassis
CN108161815A (en) * 2017-12-21 2018-06-15 合肥市春华起重机械有限公司 A kind of bolt punching easy to use
CN209430576U (en) * 2018-12-28 2019-09-24 王卫国 A kind of allosome reducing derotation bolt fastening component of never becoming loose
CN211901219U (en) * 2019-12-30 2020-11-10 江苏百德特种合金有限公司 Fastener with dual fixing function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113983060A (en) * 2020-07-27 2022-01-28 北京安和博控科技有限公司 Anti-drop fastening screw
CN117513650A (en) * 2023-12-19 2024-02-06 河北佳涛建筑工程有限公司 Assembled antidetonation steel construction

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