CN110886762A - Combined type locknut assembly - Google Patents

Combined type locknut assembly Download PDF

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Publication number
CN110886762A
CN110886762A CN201911333761.8A CN201911333761A CN110886762A CN 110886762 A CN110886762 A CN 110886762A CN 201911333761 A CN201911333761 A CN 201911333761A CN 110886762 A CN110886762 A CN 110886762A
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CN
China
Prior art keywords
nut
groove
hole
clamping piece
fastening bolt
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.)
Granted
Application number
CN201911333761.8A
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Chinese (zh)
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CN110886762B (en
Inventor
郑跃中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haiyan Daning Fastener Co Ltd
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Haiyan Daning Fastener Co Ltd
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Filing date
Publication date
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Priority to CN201911333761.8A priority Critical patent/CN110886762B/en
Publication of CN110886762A publication Critical patent/CN110886762A/en
Application granted granted Critical
Publication of CN110886762B publication Critical patent/CN110886762B/en
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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
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • 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
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/04—Locking of screws, bolts or nuts in which the locking takes place after screwing down with a member penetrating the screw-threaded surface of at least one part, e.g. a pin, a wedge, cotter-pin, screw
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a combined type anti-loose nut assembly which comprises a first nut, an anti-loose clamping piece, a second nut, an auxiliary fastening bolt and a return spring.

Description

Combined type locknut assembly
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of fasteners, in particular to a combined locknut assembly.
[ background of the invention ]
The threaded fastener is widely applied to fastening connection among various mechanical structures, relates to industries and fields such as ships and vehicles, is easy and convenient to disassemble, and has a good fastening effect in a short time. However, in the working process of the conventional threaded fastener, the conventional threaded fastener is always loosened and falls off due to the influences of vibration, impact, working condition conversion and the like of the device, so that the fastening force is reduced, even the connection fails and falls off, and huge potential safety hazards and even personal and property losses are caused.
In order to solve the problem, people invent the locknut, and the existing locknut is roughly divided into two types: the first method is that a nylon rubber ring is added in a threaded hole of a nut, the friction force between threads is increased by the nylon rubber ring, but the nylon is easy to age, so that the anti-loosening effect is lost after a long time; the second kind is through setting up reverse screw thread and realizing locking effect, but need adjust the reverse bolt of processing according to the needs of bolt, and the cost is higher, when facing vibration load, still can be because the vibration produces not hard up, finally leads to connecting the inefficacy, consequently, needs to provide a modular locknut subassembly.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a combined type locknut assembly which is simple in structure and reasonable in design, can effectively absorb vibration load, ensures the stability and reliability of bolt connection for a long time, and can repeatedly utilize other parts by replacing damaged parts, thereby reducing the use cost.
In order to achieve the purpose, the invention provides a combined type anti-loose nut assembly, which comprises a first nut, an anti-loose clamping piece, a second nut, an auxiliary fastening bolt and a return spring, wherein the centers of the first nut and the second nut are respectively provided with a first through hole and a second through hole, internal threads are arranged inside the first through hole and the second through hole, a group of open grooves which are symmetrical relative to the first through hole are arranged on the upper surface of the first nut, a limiting sliding groove is arranged below the open grooves, the inner sides of the open grooves and the limiting sliding groove are communicated with the upper half part of the first through hole, the number of the anti-loose clamping pieces is two, limiting bulges are arranged at the bottom of the anti-loose clamping piece and are positioned in the open grooves and the limiting sliding groove, the second nut is sleeved on the outer side of the anti-loose clamping piece, a conical flaring groove is arranged at the bottom of the second nut, a cylindrical groove is arranged, the reset spring is located between the groove bottom of the cylindrical groove and the top surface of the anti-loosening clamping piece, an annular groove is formed in the outer side wall of the second nut, a limiting sleeve is further arranged on the upper surface of the first nut, a plurality of threaded through holes are formed in the limiting sleeve, and a screw of the auxiliary fastening bolt penetrates through the threaded through holes and is fixed inside the annular groove.
Preferably, the first nut is a regular hexagon nut, the first nut is a stainless steel product, the limiting sleeve and the first nut are designed in an integrated mode, and the number of the threaded through holes in the limiting sleeve is at least 4.
Preferably, the auxiliary fastening bolt is a regular hexagon head bolt, the auxiliary fastening bolt is a stainless steel product, and the top of the head of the auxiliary fastening bolt is provided with an assembling and disassembling groove.
Preferably, the inner side wall and the outer side wall of the anti-loosening clamping piece are provided with threads, the anti-loosening clamping piece is an arc piece with the thickness increasing from top to bottom, the bottom of the anti-loosening clamping piece is further provided with a buffering pad, the buffering pad is located on the outer side of the limiting protrusion, and the buffering pad is a rubber product.
Preferably, the second nut is a stainless steel product, the upper half part of the second nut is a hexagonal prism, the lower half part of the second nut is a cylinder, the diameter of the lower half part of the second nut is smaller than the inner diameter of the limiting sleeve, threads are arranged on the inner wall of the flaring groove, and the depth of the flaring groove is the same as the height of the anti-loosening clamping piece.
The invention has the beneficial effects that:
the anti-loosening clamping piece is simple in structure and reasonable in design, and the movable anti-loosening clamping piece is clamped by the first nut and the second nut in a mode of arranging the first nut, the second nut, the anti-loosening clamping piece, the open slot and the limiting sliding groove, so that the threads on the inner side of the anti-loosening clamping piece are in interference fit with the threads of the stud, and the connecting strength is greatly improved; the second nut is extruded outwards in a mode of arranging the return spring, so that the friction force between the thread of the second nut and the thread of the stud is increased, and in addition, the vibration load from the bolt can be effectively absorbed; the position of the second nut is further fixed by arranging the auxiliary fastening bolt, so that the possibility of loosening of the second nut is reduced; through the mode that sets up the blotter, protected the bottom surface of locking clamping piece, increased the life of locking clamping piece.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a combined locknut assembly according to the present invention.
In the figure: 1-first nut, 11-open slot, 12-limit chute, 13-limit sleeve, 14-threaded through hole, 2-anti-loose clamping piece, 21-limit bulge, 22-buffer pad, 3-second nut, 31-flaring slot, 32-cylindrical slot, 33-annular groove, 4-auxiliary fastening bolt, 5-reset spring, 6-first through hole and 7-second through hole.
[ detailed description ] embodiments
Referring to the drawings, the combined type locknut assembly of the invention comprises a first nut 1, a locknut clamping piece 2, a second nut 3, an auxiliary fastening bolt 4 and a return spring 5, wherein the centers of the first nut 1 and the second nut 3 are respectively provided with a first through hole 6 and a second through hole 7, internal threads are arranged inside the first through hole 6 and the second through hole 7, a group of open grooves 11 symmetrical with respect to the first through hole 6 are arranged on the upper surface of the first nut 1, a limiting sliding groove 12 is arranged below the open grooves 11, the inner sides of the open grooves 11 and the limiting sliding groove 12 are communicated with the upper half part of the first through hole 6, the number of the locknut clamping pieces 2 is two, the bottom of the locknut clamping piece 2 is provided with a limiting bulge 21, the limiting bulge 21 is positioned in the open grooves 11 and the limiting sliding groove 12, the second nut 3 is sleeved on the outer side of the locknut clamping piece, the bottom of the second nut 3 is provided with a conical flaring groove 31, the bottom of the flaring groove 31 is provided with a cylindrical groove 32, the reset spring 5 is positioned between the groove bottom of the cylindrical groove 32 and the top surface of the anti-loosening clamping piece 2, the outer side wall of the second nut 3 is provided with an annular groove 33, the upper surface of the first nut 1 is further provided with a limiting sleeve 13, the limiting sleeve 13 is provided with a plurality of threaded through holes 14, and a screw rod of the auxiliary fastening bolt 4 penetrates through the threaded through holes 14 and is fixed inside the annular groove 33.
The first nut 1 is a regular hexagon nut, the first nut 1 is a stainless steel product, the limiting sleeve 13 and the first nut 1 are designed in an integrated mode, and the number of the threaded through holes 14 in the limiting sleeve 13 is at least 4.
The auxiliary fastening bolt 4 is a regular hexagon head bolt, the auxiliary fastening bolt 4 is a stainless steel product, and the top of the head of the auxiliary fastening bolt 4 is provided with an assembling and disassembling groove.
Wherein, be equipped with the screw thread on locking clamping piece 2's the inside wall and the lateral wall, locking clamping piece 2 is the circular arc piece that thickness from the top down increases in proper order, locking clamping piece 2's bottom still is equipped with blotter 22, blotter 22 is located spacing protruding 21's the outside, blotter 22 is the rubber products.
The second nut 3 is a stainless steel product, the upper half of the second nut 3 is a hexagonal prism, the lower half of the second nut 3 is a cylinder, the diameter of the lower half of the second nut 3 is smaller than the inner diameter of the limiting sleeve 13, threads are arranged on the inner wall of the flaring groove 31, and the groove depth of the flaring groove 31 is the same as the height of the anti-loosening clamping piece 2.
The working process of the invention is as follows:
in the working process of the combined type anti-loose nut assembly, the limiting bulges 21 of the anti-loose clamping pieces 2 are aligned to the limiting sliding grooves 12, the two anti-loose clamping pieces 2 are arranged in the limiting sliding grooves 12, the first nut 1 is arranged on the bolt, the reset spring 5 is arranged on the anti-loose clamping pieces 2, the second nut 3 is arranged on the bolt, the bottom surface of the second nut 3 is attached to the top surface of the anti-loose clamping pieces 2, the auxiliary fastening bolt 4 is used for firmly fixing the second nut 3 through the threaded through hole 14, and the assembly is completed. The connecting strength is greatly increased; by arranging the return spring 5, the second nut 3 is extruded outwards, the friction force between the thread of the second nut 3 and the thread of the stud is increased, and in addition, the vibration load from the bolt can be effectively absorbed; the position of the second nut 3 is further fixed by arranging the auxiliary fastening bolt 4, so that the possibility of loosening the second nut 3 is reduced; through the mode that sets up blotter 22, protected the bottom surface of locking clamping piece 2, increased the life of locking clamping piece 2.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (5)

1. The utility model provides a modular locknut subassembly which characterized in that: the anti-loosening clamping piece comprises a first nut (1), anti-loosening clamping pieces (2), a second nut (3), an auxiliary fastening bolt (4) and a reset spring (5), wherein a first through hole (6) and a second through hole (7) are respectively arranged at the center of the first nut (1) and the center of the second nut (3), internal threads are arranged inside the first through hole (6) and the second through hole (7), a group of open grooves (11) symmetrical about the first through hole (6) are arranged on the upper surface of the first nut (1), a limiting sliding groove (12) is arranged below the open grooves (11), the inner sides of the open grooves (11) and the limiting sliding groove (12) are communicated with the upper half part of the first through hole (6), the number of the anti-loosening clamping pieces (2) is two, a limiting bulge (21) is arranged at the bottom of the anti-loosening clamping pieces (2), and the limiting bulge (21) is positioned in the open grooves (11) and the limiting sliding groove (12), the outer side cover of locking clamping piece (2) is equipped with second nut (3), the bottom of second nut (3) is equipped with conical flaring groove (31), the bottom in flaring groove (31) is equipped with cylinder groove (32), reset spring (5) are located between the tank bottom of cylinder groove (32) and the top surface of locking clamping piece (2), be equipped with annular groove (33) on the lateral wall of second nut (3), still be equipped with stop sleeve (13) on the upper surface of first nut (1), be equipped with a plurality of screw through-holes (14) on stop sleeve (13), the screw rod of supplementary fastening bolt (4) passes screw through-hole (14) and fixes inside annular groove (33).
2. The modular locknut assembly of claim 1 wherein: first nut (1) is regular hexagon nut, first nut (1) is the stainless steel goods, stop sleeve (13) and first nut (1) formula design as an organic whole, the quantity of screw through-hole (14) on stop sleeve (13) is 4 at least.
3. The modular locknut assembly of claim 1 wherein: the auxiliary fastening bolt (4) is a regular hexagon screw head bolt, the auxiliary fastening bolt (4) is a stainless steel product, and the top of the screw head of the auxiliary fastening bolt (4) is provided with an assembling and disassembling groove.
4. The modular locknut assembly of claim 1 wherein: be equipped with the screw thread on the inside wall and the lateral wall of locking clamping piece (2), locking clamping piece (2) are the circular arc piece that thickness from the top down increases in proper order, the bottom of locking clamping piece (2) still is equipped with blotter (22), blotter (22) are located the outside of spacing arch (21), blotter (22) are rubber component.
5. The modular locknut assembly of claim 1 wherein: the second nut (3) is a stainless steel product, the first half of the second nut (3) is a hexagonal prism, the lower half of the second nut (3) is a cylinder, the diameter of the lower half of the second nut (3) is smaller than the inner diameter of the limiting sleeve (13), threads are arranged on the inner wall of the flaring groove (31), and the groove depth of the flaring groove (31) is the same as the height of the anti-loosening clamping piece (2).
CN201911333761.8A 2019-12-23 2019-12-23 Combined locknut assembly Active CN110886762B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911333761.8A CN110886762B (en) 2019-12-23 2019-12-23 Combined locknut assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911333761.8A CN110886762B (en) 2019-12-23 2019-12-23 Combined locknut assembly

Publications (2)

Publication Number Publication Date
CN110886762A true CN110886762A (en) 2020-03-17
CN110886762B CN110886762B (en) 2024-04-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111946717A (en) * 2020-08-21 2020-11-17 三马紧固件(浙江)股份有限公司 High-tightness nut for power machinery connection
CN114440005A (en) * 2022-01-21 2022-05-06 广东省第五建筑工程有限公司 Immersed tube mounting structure and method for municipal river construction
CN114645895A (en) * 2022-04-07 2022-06-21 绍兴山耐高压紧固件有限公司 Bolt capable of reducing looseness

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813025A1 (en) * 1977-03-28 1978-11-09 Hi Shear Corp SAFETY BOLTS
CA2292182A1 (en) * 1998-12-29 2000-06-29 David C. Funyak Self-retaining spring clip assembly and an electrical connection incorporating the same
TWM262605U (en) * 2004-07-21 2005-04-21 Guang-Tau Chen Improved fast engaging nut
RU2317437C2 (en) * 2005-01-21 2008-02-20 Агропромышленная корпорация альтернативного земледелия "Русский крестьянин" Nozzle for internal combustion engine
CN108757699A (en) * 2018-06-16 2018-11-06 荆门创佳机械科技有限公司 A kind of interlockable stop nut
CN110360392A (en) * 2019-07-24 2019-10-22 海盐华胜紧固件有限公司 A kind of pipe joint tapered cup nut
CN211599242U (en) * 2019-12-23 2020-09-29 海盐大宁紧固件有限公司 Combined type locknut assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813025A1 (en) * 1977-03-28 1978-11-09 Hi Shear Corp SAFETY BOLTS
CA2292182A1 (en) * 1998-12-29 2000-06-29 David C. Funyak Self-retaining spring clip assembly and an electrical connection incorporating the same
TWM262605U (en) * 2004-07-21 2005-04-21 Guang-Tau Chen Improved fast engaging nut
RU2317437C2 (en) * 2005-01-21 2008-02-20 Агропромышленная корпорация альтернативного земледелия "Русский крестьянин" Nozzle for internal combustion engine
CN108757699A (en) * 2018-06-16 2018-11-06 荆门创佳机械科技有限公司 A kind of interlockable stop nut
CN110360392A (en) * 2019-07-24 2019-10-22 海盐华胜紧固件有限公司 A kind of pipe joint tapered cup nut
CN211599242U (en) * 2019-12-23 2020-09-29 海盐大宁紧固件有限公司 Combined type locknut assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111946717A (en) * 2020-08-21 2020-11-17 三马紧固件(浙江)股份有限公司 High-tightness nut for power machinery connection
CN114440005A (en) * 2022-01-21 2022-05-06 广东省第五建筑工程有限公司 Immersed tube mounting structure and method for municipal river construction
CN114645895A (en) * 2022-04-07 2022-06-21 绍兴山耐高压紧固件有限公司 Bolt capable of reducing looseness

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Address after: 314300 no.216 Xitang Road, Xitangqiao street, Haiyan County, Jiaxing City, Zhejiang Province

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