CN113719512A - High-strength fastener suitable for automobile - Google Patents

High-strength fastener suitable for automobile Download PDF

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Publication number
CN113719512A
CN113719512A CN202111142415.9A CN202111142415A CN113719512A CN 113719512 A CN113719512 A CN 113719512A CN 202111142415 A CN202111142415 A CN 202111142415A CN 113719512 A CN113719512 A CN 113719512A
Authority
CN
China
Prior art keywords
screw
screw rod
nut
strength fastener
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111142415.9A
Other languages
Chinese (zh)
Inventor
汤斌杰
熊亚萍
陈卫东
雷雄杰
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.)
Shanghai Dongfeng Automobile Fastener Co ltd
Original Assignee
Shanghai Dongfeng Automobile Fastener Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Dongfeng Automobile Fastener Co ltd filed Critical Shanghai Dongfeng Automobile Fastener Co ltd
Priority to CN202111142415.9A priority Critical patent/CN113719512A/en
Publication of CN113719512A publication Critical patent/CN113719512A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/02—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws divided longitudinally
    • 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
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • 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
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • F16B39/106—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt with a deformable locking element, e.g. disk or pin above the bolt head or nut, flattened into a hole or cavity within which the bolt head or nut is positioned
    • 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
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • F16B2033/025—Shape of thread; Special thread-forms with left-hand thread

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

The invention belongs to the technical field of mechanical parts, and discloses a high-strength fastener suitable for automobiles. The screw and the nut are fixed by inserting the inserting pin into the inserting hole, and the screw and the nut are inserted and fixed by the inserting pin during normal use; when the screw rod is damaged, the inserting pin is detached from the inserting hole, so that the screw rod is separated from the screw cap, and the screw cap can be reused. The invention can realize the recycling of the screw cap so as to save the manufacturing cost of the high-strength fastener.

Description

High-strength fastener suitable for automobile
Technical Field
The application relates to the technical field of mechanical parts, and more particularly relates to a high-strength fastener suitable for automobiles.
Background
The high-strength fastener connection is an excellent steel structure connecting piece, has the advantages of good stress, fatigue resistance, difficult looseness and the like, and is widely used in the field of automobile assembly.
The fastener comprises screw rod and the nut of connection in screw rod one end usually, and the screw rod plays and connects and bear the effect of load, and the life of screw rod plays decisive action to the life of bolt, and the nut plays on the one hand and carries out circumference fixed connection's effect with the screw rod with the instrument, and on the other hand carries on spacingly to the screw in degree of depth of screw rod, compares in playing the bolt of connecting and bearing the load effect, and the life of nut will be very long.
At present, the high-strength fastener is integrally formed, a screw and a nut cannot be independently disassembled and recycled, and the high-strength fastener is high in performance and high in manufacturing cost. In view of the above-mentioned related art, the inventor believes that if the screw and the nut can be disassembled and assembled, the nut can be reused many times, which is beneficial to saving the manufacturing cost of the high-strength fastener.
Disclosure of Invention
In order to solve the above problems, the present application provides a high-strength fastener suitable for use in an automobile.
The application provides a high strength fastener suitable for car adopts following technical scheme:
the utility model provides a high strength fastener suitable for car, includes screw rod and nut, the screw rod with the nut can be dismantled and be connected, the spliced eye has all been seted up on screw rod and the nut, the screw rod with the nut passes through the spliced eye to be connected, the spliced eye is inserted and is established in the spliced eye.
According to the technical scheme, the screw rod and the nut are fixed by inserting the inserting pin into the inserting hole, and the screw rod and the nut are inserted and fixed by the inserting pin during normal use; when the screw rod is damaged, the inserting pin is detached from the inserting hole, so that the screw rod is separated from the screw cap, and the screw cap can be reused.
Furthermore, one end of the screw rod is integrally formed with a connecting rod, the nut is provided with a socket corresponding to the connecting rod, and the connecting rod is inserted into the socket.
Through the technical scheme, the screw rod is limited by the plug-in port, so that the connection between the screw cap and the screw rod is more stable, and the possibility of displacement of the screw rod along the radial direction is reduced.
Furthermore, an external thread is arranged outside the connecting rod, an internal thread is arranged on the inner wall of the insertion port, and the connecting rod is in threaded connection with the nut.
Through above-mentioned technical scheme, connecting rod and nut threaded connection because the screw thread itself has the auto-lock performance, can further make the connection between screw rod and the nut more stable.
Further, the screw thread direction on the connecting rod is opposite to the screw thread direction on the screw rod.
Through the technical scheme, after the screw rod and the screw cap are fixedly connected, the screw rod is screwed into the workpiece, the screwing direction of the threads on the connecting rod is opposite to that of the threads on the screw rod, so that the screw cap and the screw rod can be more tightly meshed together in the process of screwing the screw rod into the workpiece.
Furthermore, the end face of the plug pin is polygonal, and the shape of the opening of the plug port corresponds to the shape of the end face of the plug pin.
Through the technical scheme, the inserting pin with the polygonal end face is different from a common cylindrical pin, so that the possibility of rotation of the inserting pin in the inserting port is reduced, and the nut and the screw rod are connected together by the inserting pin more stably.
Furthermore, a containing groove is formed in the nut and used for placing the bent inserting pin.
Through the technical scheme, after the inserting pin is inserted into the inserting hole, the screw and the screw cap are fixed, the two ends of the inserting pin are bent, the bent part of the inserting pin is placed in the accommodating groove, and the possibility of influence caused by the matching between the screw cap and a workpiece is reduced.
Furthermore, a propping cover is arranged at one end of the screw rod and is in threaded connection with the screw rod, and the propping cover is used for tightly propping against the screw cap.
Through above-mentioned technical scheme, support to tightly cover and be connected the back with the screw rod, support the end of tightly covering and the nut offsets tightly, can make between nut and the screw rod closely support and lean on integratively more, overall structure is more stable.
Furthermore, the nut is provided with a limit groove corresponding to the abutting cover, and the end of the abutting cover is inserted into the limit groove.
Through above-mentioned technical scheme, the spacing groove plays limiting displacement to supporting the lid, has reduced to support and has covered the possibility that radially takes place to remove tightly.
In summary, the present application includes at least one of the following advantageous technical effects:
(1) the screw and the nut are fixed by inserting the inserting pin into the inserting hole, and the screw and the nut are inserted and fixed by the inserting pin during normal use; when the screw is damaged, the inserting pin is detached from the inserting hole, so that the screw is separated from the screw cap, and the screw cap can be reused;
(2) after the screw and the nut are fixedly connected, the screw is screwed into the workpiece, the screwing direction of the thread on the connecting rod is opposite to that of the thread on the screw, so that the nut and the screw can be more tightly meshed together in the process of screwing the screw into the workpiece;
(3) the inserting pin with the polygonal end face is different from a common cylindrical pin, the possibility that the inserting pin rotates in the inserting port is reduced, and the nut and the screw rod are connected together more stably through the inserting pin.
Drawings
FIG. 1 is an exploded view of an unfolded state of a connector pin of the present invention;
fig. 2 is an exploded view of the bending state of the plug pin of the present invention, i.e., the overall structure.
The reference numbers in the figures illustrate:
1. a screw; 11. a connecting rod; 12. inserting holes; 2. a nut; 21. an interface; 22. accommodating grooves; 23. a limiting groove; 3. a plug pin; 4. abutting the cover; 41. an end plate; 42. a tightening ring; 5. and connecting the screw rod.
Detailed Description
The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses high strength fastener suitable for car please refer to fig. 1, and a high strength fastener suitable for car includes screw rod 1 and nut 2, and screw rod 1 and nut 2 can be dismantled and be connected.
Referring to fig. 1, one end of the screw rod 1 close to the nut 2 is integrally formed with a connecting rod 11, the connecting rod 11 and the screw rod 1 are coaxially arranged, the diameter of the connecting rod 11 is smaller than that of the screw rod 1, the nut 2 is provided with a socket 21 corresponding to the connecting rod 11, the connecting rod 11 is inserted into the socket 21, the connecting rod 11 is provided with an external thread, the inner wall of the socket 21 is provided with an internal thread, the connecting rod 11 is in threaded connection with the nut 2, and the thread on the connecting rod 11 and the thread on the screw rod 1 are opposite in rotation direction.
Referring to fig. 1, the socket 21 limits the screw 1, and one end of the screw 1 abuts against the nut 2, so that the possibility of displacement of the screw 1 along the radial direction is reduced; because the screw thread itself has the auto-lock performance, can further make the connection between screw rod 1 and the nut 2 more stable, simultaneously, after screw rod 1 and nut 2 thread tightening, with screw rod 1 screw in work piece, because the screw thread on the connecting rod 11 is opposite with the screw thread on the screw rod 1 soon, can make the in-process of screw rod 1 screw in work piece, nut 2 is in the same place with screw rod 1 interlock closely.
Referring to fig. 1 and 2, the nut 2 is connected with the screw rod 1 through the inserting pin 3, the end surface of the inserting pin 3 is polygonal, the end surface of the inserting pin 3 is triangular in the embodiment, inserting holes 12 corresponding to the inserting pin 3 are formed in the nut 2 and the screw rod 1, the axis of each inserting hole 12 is perpendicular to the axial direction of the screw rod 1, the inserting pin 3 is inserted into the inserting holes 12, the nut 2 is a hexagonal nut 2, two opposite side walls of the nut 2 are provided with accommodating grooves 22, and the accommodating grooves 22 are used for bending the end of the inserting pin 3 and then placing the end into the accommodating grooves.
Referring to fig. 1 and 2, the triangular end face of the plug pin 3 reduces the possibility of the plug pin 3 rotating in the socket 21, so that the plug pin 3 can connect the nut 2 and the screw rod 1 together more stably. After the inserting pin 3 is inserted into the inserting hole 12, the two ends of the inserting pin 3 are bent, so that the possibility that the inserting pin 3 falls off from the inserting hole 12 is reduced, the bent part of the inserting pin 3 is placed in the accommodating groove 22, and the possibility that the matching between the nut 2 and a workpiece causes influence is reduced.
Referring to fig. 1 and 2, one end of the connecting rod 11, which is far away from the screw rod 1, is provided with a abutting cover 4, the abutting cover 4 comprises an end plate 41 and an abutting ring 42 which is integrally formed on one side of the end plate 41, the diameter of the outer ring wall of the abutting ring 42 is consistent with that of the end plate 41, the bottom wall of the inner cavity of the abutting cover 4 is fixedly connected with a connecting screw rod 5, the connecting screw rod 5 and the abutting ring 42 are coaxially arranged, and the connecting screw rod 5 is in threaded connection with the end of the connecting rod 11.
Referring to fig. 1 and 2, after the abutting cover 4 is connected with the screw rod 1 through the connecting screw rod 1, the end of the abutting ring 42 abuts against the screw cap 2, so that the screw cap 2 and the screw rod 1 can abut against each other more tightly, and the overall structure of the fastener is more stable.
Referring to fig. 1, the end surface of the nut 2 is provided with a limiting groove 23 corresponding to the tightening ring 42, and the tightening ring 42 is embedded in the limiting groove 23. The limiting groove 23 has a limiting effect on the abutting cover 4, and the possibility that the abutting cover 4 displaces along the radial direction is reduced.
The implementation principle of the high-strength fastener suitable for the automobile is as follows: when assembling the fastener, an operator firstly screws the connecting rod 11 into the socket 21 on the screw cap 2, so that the socket 21 on the screw rod 1 is communicated with the inserting hole 12 on the screw cap 2, and inserts the inserting pin 3 into the inserting hole 12. And bending two ends of the plug pin 3 to complete the connection of the plug pin 3 to the screw cap 2 and the screw rod 1. Finally, the connecting screw 5 on the abutting cover 4 is inserted into the connecting rod 11, so that the abutting ring 42 abuts against the limiting groove 23, and the assembly of the fastener is completed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a high strength fastener suitable for car, includes screw rod (1) and nut (2), its characterized in that: the screw rod (1) is detachably connected with the screw cap (2), the screw rod (1) and the screw cap (2) are respectively provided with an inserting hole (12), the screw rod (1) and the screw cap (2) are connected through an inserting pin (3), and the inserting pin (3) is inserted into the inserting hole (12).
2. A high strength fastener for automotive vehicles as claimed in claim 1, wherein: one end of the screw rod (1) is integrally formed with a connecting rod (11), the screw cap (2) is provided with a socket (21) corresponding to the connecting rod (11), and the connecting rod (11) is inserted into the socket (21).
3. A high strength fastener for automotive vehicles as claimed in claim 2, wherein: the connecting rod (11) is externally provided with an external thread, the inner wall of the inserting port (21) is provided with an internal thread, and the connecting rod (11) is in threaded connection with the screw cap (2).
4. A high strength fastener for automotive vehicles as claimed in claim 3, wherein: the screw thread turning direction on the connecting rod (11) is opposite to that on the screw rod (1).
5. A high strength fastener for automotive vehicles as claimed in claim 4, wherein: the end face of the plug pin (3) is polygonal, and the opening shape of the plug port (21) corresponds to the end face shape of the plug pin (3).
6. A high strength fastener for automotive vehicles as claimed in claim 5, wherein: an accommodating groove (22) is formed in the nut (2), and the accommodating groove (22) is used for accommodating the bent inserting pin (3).
7. A high strength fastener for automotive vehicles as claimed in claim 6, wherein: screw rod (1) one end is provided with and supports tight lid (4), support tight lid (4) with screw rod (1) threaded connection, support tight lid (4) be used for with nut (2) counterbalance tightly.
8. A high strength fastener for automotive vehicles as claimed in claim 7, wherein: the nut (2) is provided with a limiting groove (23) corresponding to the abutting cover (4), and the end of the abutting cover (4) is inserted into the limiting groove (23).
CN202111142415.9A 2021-09-28 2021-09-28 High-strength fastener suitable for automobile Pending CN113719512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111142415.9A CN113719512A (en) 2021-09-28 2021-09-28 High-strength fastener suitable for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111142415.9A CN113719512A (en) 2021-09-28 2021-09-28 High-strength fastener suitable for automobile

Publications (1)

Publication Number Publication Date
CN113719512A true CN113719512A (en) 2021-11-30

Family

ID=78685222

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111142415.9A Pending CN113719512A (en) 2021-09-28 2021-09-28 High-strength fastener suitable for automobile

Country Status (1)

Country Link
CN (1) CN113719512A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116067169A (en) * 2023-03-07 2023-05-05 杭州芯云半导体技术有限公司 Door sensor limiting and protecting device, mounting method and semiconductor oven

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116067169A (en) * 2023-03-07 2023-05-05 杭州芯云半导体技术有限公司 Door sensor limiting and protecting device, mounting method and semiconductor oven

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