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CN114147427B - Improved lock nut and surface treatment process thereof - Google Patents

Improved lock nut and surface treatment process thereof Download PDF

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Publication number
CN114147427B
CN114147427B CN202111452634.7A CN202111452634A CN114147427B CN 114147427 B CN114147427 B CN 114147427B CN 202111452634 A CN202111452634 A CN 202111452634A CN 114147427 B CN114147427 B CN 114147427B
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CN
China
Prior art keywords
nut
nut body
threaded
lock nut
screw
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.)
Active
Application number
CN202111452634.7A
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Chinese (zh)
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CN114147427A (en
Inventor
熊家庆
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.)
Yuhuan Shiyu Machinery Co ltd
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Yuhuan Shiyu Machinery Co ltd
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Priority to CN202111452634.7A priority Critical patent/CN114147427B/en
Publication of CN114147427A publication Critical patent/CN114147427A/en
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Publication of CN114147427B publication Critical patent/CN114147427B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0093Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
    • 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
    • F16B39/04Locking 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention relates to an improved lock nut and a surface treatment process thereof, comprising a nut body, wherein a fastening mechanism is arranged on the left side of the nut body, a driving mechanism is arranged on the left side of the nut body and positioned on the outer side of the fastening mechanism, and a lubricating mechanism is arranged on the nut body; the fastening mechanism comprises mounting blocks and locking plates, wherein the two mounting blocks are fixedly mounted on the left side of the nut body, and the locking plates are movably mounted on the back sides of the two mounting blocks. According to the improved lock nut and the surface treatment process thereof, after the screw is screwed into the nut body through the fastening mechanism, the locking plates on the two sides are turned to prop against the threads on the screw, the threaded rod is screwed to move towards the nut body along with the threaded sliding block, the threaded sliding block moves along with the connecting rod, and the connecting rod drives the contact head to fix the locking plates, so that the screw can be firmly fixed, and the purpose of good locking effect is achieved.

Description

Improved lock nut and surface treatment process thereof
Technical Field
The invention relates to the technical field of lock nuts, in particular to an improved lock nut and a surface treatment process thereof.
Background
The locking nut is widely applied to the industries of machinery and the like, and the working principle is to adopt the friction force between the nut and the bolt for self-locking, but the reliability of the self-locking in dynamic load is reduced, and in some important occasions, we can take some anti-loosening measures to ensure the reliability of the locking of the nut.
When the lock nut is used on occasions with higher vibration intensity, the condition that the nut is loosened can also occur, the locking effect is poor, maintenance personnel are required to frequently screw the lock nut for maintenance, the maintenance cost is increased, and the practicability of the lock nut is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an improved lock nut and a surface treatment process thereof, which have the advantages of good locking effect and the like, and solve the problems that the lock nut can be loosened and has poor locking effect when being used in occasions with higher vibration intensity.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an improved generation lock nut, includes the nut body, the left side of nut body is provided with fastening mechanism, the left side of nut body and the outside that is located fastening mechanism are provided with actuating mechanism, be provided with lubrication mechanism on the nut body.
Further, fastening mechanism includes installation piece and locking plate, the left side fixed mounting of nut body has a quantity to be two installation piece, two the equal movable mounting in the back of installation piece has the locking plate.
Further, a threaded through hole is formed in the right side of the nut body, and the two mounting blocks are respectively located above and below the threaded through hole.
Further, actuating mechanism includes the storehouse body, threaded rod, screw thread slider, connecting rod and contact, the left side of nut body just is located two the equal fixed mounting in one side that the installation piece is on the back of the body mutually has the storehouse body, two the equal movable mounting in the left side of the storehouse body has one end to run through and extend to the internal threaded rod in storehouse, two the equal threaded connection in the outside of threaded rod has the screw thread slider, two the equal fixed mounting in one side that the screw thread slider is relative has one end to run through and extend to the connecting rod of the relative one side in storehouse, two the equal fixed mounting in one end that the screw thread slider was kept away from to the connecting rod has the contact with the locking plate.
Further, two opposite sides of the bin body are provided with connecting rod grooves, and the connecting rod grooves are matched with the connecting rods.
Further, two limiting grooves are formed in one side, opposite to the inner wall of the bin body, of each limiting groove, and limiting blocks with one ends fixedly connected with the threaded sliding blocks are movably mounted in the limiting grooves.
Further, lubrication mechanism includes storage chamber, liquid feeding fill, fill lid, oil seepage hole, the storage chamber has been seted up to the inside of nut body, the top of nut body inlays and is equipped with the liquid feeding fill that one end runs through the nut body and extends to the storage intracavity portion, the top fixed mounting of liquid feeding fill has the fill lid, the oil seepage hole that one end runs through the nut body and extends to the screw thread through-hole inside has been seted up to the inner wall in storage chamber.
The surface treatment process of the improved lock nut comprises the following steps:
1) Quenching and strengthening: placing the produced lock nut into a heating furnace for high-temperature heating at 1500-1600 ℃ for 6-8 hours, placing the lock nut into cooling oil for rapid cooling after heating, and taking out the lock nut after quenching operation;
2) Grinding and removing thorns: grinding burrs and attached impurities on the surface of the quenched lock nut by using an electric grinding machine, and adding polishing liquid in the grinding process to ensure that the processed product is more attractive in appearance;
3) Carving lines: carving a resistance-increasing pattern on the contact surface of the nut and the screw by using a carving machine to increase the friction force between the screw and the nut, so that the screw and the nut are fixed more tightly;
4) Ultrasonic cleaning: putting the produced lock nut into an ultrasonic cleaner, and adding 60 ℃ water and cleaning liquid into the ultrasonic cleaner to comprehensively clean the lock nut;
5) Quick drying: placing the cleaned lock nut into an industrial dryer, setting the temperature of the dryer to be 60-80 ℃, and taking out after lasting for 30 minutes;
6) Dacromet treatment: and (3) performing secondary spraying of Dacromet coating liquid and drying operation on the cleaned locking nut to finish Dacromet treatment operation of the locking nut.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
1. According to the improved lock nut and the surface treatment process thereof, after the screw is screwed into the nut body through the fastening mechanism, the locking plates on the two sides are turned to prop against the threads on the screw, the threaded rod is screwed to move towards the nut body along with the threaded sliding block, the threaded sliding block moves along with the connecting rod, and the connecting rod drives the contact head to fix the locking plates, so that the screw can be firmly fixed, and the purpose of good locking effect is achieved.
2. According to the improved lock nut and the surface treatment process thereof, after the screw rod and the nut are screwed through the set lubricating mechanism, the bucket cover is unscrewed to add lubricating oil into the storage cavity through the liquid adding bucket, the lubricating oil in the storage cavity can slowly infiltrate into the screw rod and the nut along with the oil seepage hole, the lubricating degree of the screw rod and the nut is kept, the screw rod and the nut are prevented from being rusted, and the service life of the screw rod and the nut is prolonged.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
Fig. 3 is an enlarged view of the invention at B in fig. 1.
In the figure: the nut comprises a nut body 1, a fastening mechanism 2, a mounting block 21, a locking plate 22, a driving mechanism 3, a bin body 31, a threaded rod 32, a threaded slider 33, a connecting rod 34, a contact head 35, a lubricating mechanism 4, a storage cavity 41, a liquid adding hopper 42, a hopper cover 43 and an oil seepage hole 44.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, an improved lock nut in this embodiment includes a nut body 1, a fastening mechanism 2 is disposed on the left side of the nut body 1, a driving mechanism 3 is disposed on the left side of the nut body 1 and outside the fastening mechanism 2, and a lubrication mechanism 4 is disposed on the nut body 1.
In this embodiment, the fastening mechanism 2 includes a mounting block 21 and a locking plate 22, the left side of the nut body 1 is fixedly provided with two mounting blocks 21, the back surfaces of the two mounting blocks 21 are movably provided with the locking plate 22, when the screw is screwed into the nut body 1, the locking plates 22 on two sides are turned to abut against the threads on the screw after the screw is screwed into the nut body 1, and the driving mechanism 3 is operated to fix the locking plates 22, so that the screw can be firmly fixed.
In this embodiment, a threaded through hole is formed on the right side of the nut body 1, and two mounting blocks 21 are respectively located above and below the threaded through hole.
In this embodiment, the driving mechanism 3 includes a bin body 31, a threaded rod 32, a thread slider 33, a connecting rod 34 and a contact head 35, the left side of the nut body 1 and the side that is located at the back of the two mounting blocks 21 are fixedly provided with the bin body 31, the left sides of the two bin bodies 31 are movably provided with the threaded rod 32, one ends of the threaded rod 32 penetrate through and extend to the inside of the bin body 31, the outer sides of the two threaded rods 32 are fixedly provided with the thread slider 33, one ends of the two thread sliders 33 opposite are fixedly provided with the connecting rod 34, one ends of the two connecting rods 34 far away from the thread slider 33 are fixedly provided with the contact head 35 which is contacted with the locking plate 22, when in use, the threaded rod 32 can be screwed to move towards the nut body 1, the thread slider 33 moves with the connecting rod 34 to provide driving force for the operation of the fastening mechanism 2.
In this embodiment, the opposite sides of the two bins 31 are provided with connecting rod grooves, the connecting rod grooves are matched with the connecting rods 34, and the connecting rod grooves facilitate the movement of the connecting rods 34.
In this embodiment, the opposite sides of the inner walls of the two bins 31 are provided with limiting grooves, and limiting blocks with one ends fixedly connected with the thread sliders 33 are movably mounted in the limiting grooves, so that the limiting blocks can limit the moving direction of the thread sliders 33 and can horizontally move.
In this embodiment, lubrication mechanism 4 includes storage chamber 41, liquid feeding fill 42, fill lid 43, the oil seepage hole 44, storage chamber 41 has been seted up to the inside of nut body 1, the top of nut body 1 inlays and is equipped with the liquid feeding fill 42 that one end runs through nut body 1 and extends to the inside of storage chamber 41, liquid feeding fill 42's top fixed mounting has fill lid 43, the oil seepage hole 44 that one end runs through nut body 1 and extends to the inside of screw thread through-hole is seted up to the inner wall of storage chamber 41, when using, after screwing on screw rod and nut, unscrewing fill lid 43 adds lubricating oil into storage chamber 41 through liquid feeding fill 42, the lubricating oil of storage chamber 41 inside can be along with the slow infiltration screw rod of oil seepage hole 44 and nut in, keep the lubrication degree of screw rod and nut, prevent screw rod and nut rust, screw rod and nut's life has been promoted.
The surface treatment process of the improved lock nut comprises the following steps:
1) Quenching and strengthening: placing the produced lock nut into a heating furnace for high-temperature heating at 1500-1600 ℃ for 6-8 hours, placing the lock nut into cooling oil for rapid cooling after heating, and taking out the lock nut after quenching operation;
2) Grinding and removing thorns: grinding burrs and attached impurities on the surface of the quenched lock nut by using an electric grinding machine, and adding polishing liquid in the grinding process to ensure that the processed product is more attractive in appearance;
3) Carving lines: carving a resistance-increasing pattern on the contact surface of the nut and the screw by using a carving machine to increase the friction force between the screw and the nut, so that the screw and the nut are fixed more tightly;
4) Ultrasonic cleaning: putting the produced lock nut into an ultrasonic cleaner, and adding 60 ℃ water and cleaning liquid into the ultrasonic cleaner to comprehensively clean the lock nut;
5) Quick drying: placing the cleaned lock nut into an industrial dryer, setting the temperature of the dryer to be 60-80 ℃, and taking out after lasting for 30 minutes;
6) Dacromet treatment: and (3) performing secondary spraying of Dacromet coating liquid and drying operation on the cleaned locking nut to finish Dacromet treatment operation of the locking nut.
The working principle of the embodiment is as follows:
(1) Screwing the screw into the nut body 1 along the through hole, turning the locking plates 22 on two sides against the screw threads on the screw, screwing the threaded rod 32 to move towards the nut body 1 along with the threaded sliding block 33, and moving the threaded sliding block 33 along with the connecting rod 34, wherein the connecting rod 34 drives the contact head 35 to fix the locking plates 22, so that the screw can be firmly fixed;
(2) Unscrewing the bucket cover 43 adds lubricating oil into the storage cavity 41 through the liquid adding bucket 42, and the lubricating oil in the storage cavity 41 slowly permeates into the screw and the nut along with the oil seepage hole 44, so that the lubricating degree of the screw and the nut is kept, the screw and the nut are prevented from rusting, and the service life of the screw and the nut is prolonged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. An improved lock nut, which comprises a nut body (1), and is characterized in that: the nut comprises a nut body (1), wherein a fastening mechanism (2) is arranged on the left side of the nut body (1), a driving mechanism (3) is arranged on the left side of the nut body (1) and positioned on the outer side of the fastening mechanism (2), and a lubricating mechanism (4) is arranged on the nut body (1);
The fastening mechanism (2) comprises mounting blocks (21) and locking plates (22), wherein the two mounting blocks (21) are fixedly mounted on the left side of the nut body (1), and the locking plates (22) are movably mounted on the back sides of the two mounting blocks (21);
A threaded through hole is formed in the right side of the nut body (1), and the two mounting blocks (21) are respectively positioned above and below the threaded through hole;
The driving mechanism (3) comprises a bin body (31), a threaded rod (32), threaded sliders (33), connecting rods (34) and contact heads (35), the bin body (31) is fixedly arranged on the left side of the nut body (1) and located on the opposite sides of the two mounting blocks (21), one end of each threaded rod (32) penetrating through and extending to the inside of the bin body (31) is movably arranged on the left side of each bin body (31), the threaded sliders (33) are connected with the outer sides of the threaded rods (32) in a threaded mode, the connecting rods (34) with one ends penetrating through and extending to the opposite sides of the bin body (31) are fixedly arranged on the opposite sides of the threaded sliders (33), and the contact heads (35) contacting with the locking plates (22) are fixedly arranged on the ends, far away from the threaded sliders (33), of the connecting rods (34);
And connecting rod grooves are formed in one side, opposite to the bin bodies (31), of each bin body, and the connecting rod grooves are matched with the connecting rods (34).
2. An improved lock nut as claimed in claim 1, wherein: limiting grooves are formed in one side, opposite to the inner walls, of the bin bodies (31), and limiting blocks with one ends fixedly connected with the threaded sliding blocks (33) are movably mounted in the limiting grooves.
3. An improved lock nut as claimed in claim 1, wherein:
Lubrication mechanism (4) are including storing chamber (41), liquid feeding fill (42), fill lid (43), oil seepage hole (44), the inside of nut body (1) has been seted up and has been stored chamber (41), the top of nut body (1) has been inlayed and has been equipped with one end and has been run through nut body (1) and extend to the inside liquid feeding fill (42) of storing chamber (41), the top fixed mounting of liquid feeding fill (42) has fill lid (43), the inner wall of storing chamber (41) has been seted up one end and has been run through nut body (1) and extend to inside oil seepage hole (44) of screw thread through-hole.
4. The surface treatment process of the improved lock nut is characterized by comprising the following steps of:
1) Quenching and strengthening: the produced lock nut is put into a heating furnace to be heated at a high temperature of 1500-
Heating for 6-8 hours at 1600 ℃, putting the heated steel wire rope into cooling oil for rapid cooling, and taking out the lock nut after quenching operation is completed;
2) Grinding and removing thorns: grinding burrs and attached impurities on the surface of the quenched lock nut by using an electric grinding machine, and adding polishing liquid in the grinding process to ensure that the processed product is more attractive in appearance;
3) Carving lines: carving a resistance-increasing pattern on the contact surface of the nut and the screw by using a carving machine to increase the friction force between the screw and the nut, so that the screw and the nut are fixed more tightly;
4) Ultrasonic cleaning: putting the produced lock nut into an ultrasonic cleaner, and adding 60 ℃ water and cleaning liquid into the ultrasonic cleaner to comprehensively clean the lock nut;
5) Quick drying: placing the cleaned lock nut into an industrial dryer, setting the temperature of the dryer to be 60-80 ℃, and taking out after lasting for 30 minutes;
6) Dacromet treatment: and (3) performing secondary spraying of Dacromet coating liquid and drying operation on the cleaned locking nut to finish Dacromet treatment operation of the locking nut.
CN202111452634.7A 2021-12-01 2021-12-01 Improved lock nut and surface treatment process thereof Active CN114147427B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111452634.7A CN114147427B (en) 2021-12-01 2021-12-01 Improved lock nut and surface treatment process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111452634.7A CN114147427B (en) 2021-12-01 2021-12-01 Improved lock nut and surface treatment process thereof

Publications (2)

Publication Number Publication Date
CN114147427A CN114147427A (en) 2022-03-08
CN114147427B true CN114147427B (en) 2024-11-05

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109531063A (en) * 2018-11-27 2019-03-29 重庆旺达汽车零部件有限公司 A kind of processing method of high-strength bolts
CN209130022U (en) * 2018-11-22 2019-07-19 龙岩市融耀机械工业有限公司 A kind of Rust-inhibiting nut
CN211082515U (en) * 2019-11-25 2020-07-24 泰州市万鑫泵阀配件有限公司 Novel nut for petroleum valve rod
CN216666193U (en) * 2021-12-01 2022-06-03 玉环实玉机械有限公司 Improved generation lock nut

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1133654A (en) * 1997-07-10 1999-02-09 Chii Hoo Chun Mounting structure of knock-out rod for slide ram of c-type press
JP2001073187A (en) * 1999-08-31 2001-03-21 Daido Kogyo Co Ltd Corrosion resistant metallic product and its production
CN203856841U (en) * 2014-04-25 2014-10-01 常盛杰 Self-lubricating nut
CN208221306U (en) * 2018-05-02 2018-12-11 浙江嘉禾汽车部件股份有限公司 A kind of nut with locking functions
CN210830111U (en) * 2019-10-12 2020-06-23 上海底特精密紧固件股份有限公司 Anti-loosening threaded fastener
CN211145067U (en) * 2019-12-11 2020-07-31 浙江嘉禾汽车部件股份有限公司 Flange nut with anti-drop function
CN111981020A (en) * 2020-08-18 2020-11-24 高邮市汽车标准件厂 Novel anti-loosening nut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209130022U (en) * 2018-11-22 2019-07-19 龙岩市融耀机械工业有限公司 A kind of Rust-inhibiting nut
CN109531063A (en) * 2018-11-27 2019-03-29 重庆旺达汽车零部件有限公司 A kind of processing method of high-strength bolts
CN211082515U (en) * 2019-11-25 2020-07-24 泰州市万鑫泵阀配件有限公司 Novel nut for petroleum valve rod
CN216666193U (en) * 2021-12-01 2022-06-03 玉环实玉机械有限公司 Improved generation lock nut

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