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CN117267237A - Locking bolt and matched locking sleeve thereof - Google Patents

Locking bolt and matched locking sleeve thereof Download PDF

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Publication number
CN117267237A
CN117267237A CN202311213295.6A CN202311213295A CN117267237A CN 117267237 A CN117267237 A CN 117267237A CN 202311213295 A CN202311213295 A CN 202311213295A CN 117267237 A CN117267237 A CN 117267237A
Authority
CN
China
Prior art keywords
groove
bolt
pair
main body
locking
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
CN202311213295.6A
Other languages
Chinese (zh)
Inventor
林大森
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.)
Ruian Weifu Standard Parts Co ltd
Original Assignee
Ruian Weifu Standard Parts 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 Ruian Weifu Standard Parts Co ltd filed Critical Ruian Weifu Standard Parts Co ltd
Priority to CN202311213295.6A priority Critical patent/CN117267237A/en
Publication of CN117267237A publication Critical patent/CN117267237A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F16B35/04Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041Specially-shaped shafts
    • 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
    • F16B39/10Locking 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
    • 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
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

The application discloses a locking bolt and a matched locking sleeve thereof, comprising a bolt part and a nut part, wherein the bolt part is cylindrical and comprises a pair of side plates and a middle plate; the nut part comprises a main body part, a lower through groove, a movable part and an inner hexagonal groove; the convex blocks are symmetrically distributed at two ends of the top surface of the lower through groove; go up logical groove, it sets up on the movable part top, extend along its length direction, both ends link up, between the adjacent lateral wall of a pair of sideboard, between the opposite lateral wall of medium plate, all have 2 contained angles, in daily use, through socket head cap wrench and interior hexagonal recess cooperation, rotatory nut portion and bolt portion, make screwing between bolt portion and the external screw thread blind hole, insert down logical groove and go up logical inslot with the outside body of rod afterwards, jack-up bolt portion and a pair of sideboard upwards, nut portion and medium plate are pushed down, screw thread on a pair of sideboard and the screw thread on the medium plate are towards opposite direction removal, just can lock with between the external screw thread blind hole.

Description

Locking bolt and matched locking sleeve thereof
Technical Field
The invention relates to a locking bolt and a matched locking sleeve thereof.
Background
The common bolt generally has no self-locking function, and can basically meet the use requirement in common occasions. However, in some places with larger vibration, the bolt will be loosened due to the vibration, in order to solve the problem, in the present chinese patent publication No. CN112160962a, a self-locking bolt assembly is disclosed, which includes a bolt, a cap nut, a pair of expansion blocks and a pair of taper holes, when in use, the expansion blocks are placed in the bottom of the coupled piece/inside of the cap nut, the bolt/cap nut is rotated, the expansion blocks compress the taper holes to expand the end of the bolt outwards, and the screw blind holes on the fastener/cap nut are locked with each other, but the defects are that:
along with the rotation of the bolt/cover type nut, the end part of the bolt gradually expands under the cooperation of the conical nest hole and the tensioning block, so that the resistance born by the bolt/cover type nut is larger in the last screwing stage, the abrasion between the internal thread and the external thread is severe, and the service lives of the bolt, the cover type nut and the threaded blind hole are influenced.
Disclosure of Invention
The invention aims to solve one of the technical problems existing in the prior art.
The application provides a locking bolt, including bolt portion and nut portion:
the bolt part is cylindrical and comprises a pair of side plates and a middle plate;
the nut part comprises a main body part, a lower through groove, a movable part and an inner hexagonal groove;
the movable part is fixedly connected with the middle plate, can slide in the lower through groove in a lifting manner, a pair of side plates are fixedly connected to two sides of the bottom surface of the main body part, and the inner hexagonal grooves are formed in the main body part and the movable part.
And an included angle of 2 degrees is formed between the adjacent side walls of the pair of side plates and between the opposite side walls of the middle plate.
The nut portion further includes:
the convex blocks are symmetrically distributed at two ends of the top surface of the lower through groove.
The nut portion further includes:
the upper through groove is arranged at the top end of the movable part, extends along the length direction of the upper through groove, and two ends of the upper through groove are communicated.
A mating locking kit comprising:
the locking sleeve is rotatably sleeved outside the main body part;
the sliding grooves are symmetrically arranged on the outer wall of the main body part and are respectively communicated with two ends of the lower through groove;
the sliding plates are symmetrically fixedly connected to the inner peripheral wall of the locking sleeve and can slide between the two ends of the corresponding sliding groove and the lower through groove.
Further comprises:
the guide grooves are symmetrically arranged at two ends of the top surface of the movable part;
wherein, the left and right sides of a pair of guide groove bottom surfaces are all inclined.
The sliding tray further includes:
a side groove provided in an outer peripheral wall of the main body portion, the side groove having a distal end penetrating;
and the lower arc groove is arranged in the middle of the outer peripheral wall of the main body part, one end of the lower arc groove is communicated with the lower end of the side groove, and the other end of the lower arc groove extends to be communicated with the end part of the lower through groove in the screwing direction of the nut part.
Further comprises:
a lock washer which is sleeved outside the bolt part;
the plurality of abutting blocks are annularly arranged and fixedly connected to the bottom surface of the lock washer.
The tight piece of support includes:
a connecting surface, a vertical surface and an inclined surface which are sequentially connected end to end along the clockwise direction;
the connecting surface is fixedly connected with the bottom surface of the lock washer, and the inclined surface faces the screwing direction of the bolt part.
Further comprises:
the blind holes are arranged on the bottom surface of the main body at intervals;
the inserting rods are fixedly connected to the top surface of the anti-loosening washer, and the upper ends of the inserting rods can be inserted into the corresponding blind holes in a sliding mode.
The beneficial effects of the invention are as follows:
1. the screw bolt part formed by the middle plate and the pair of side plates is screwed with the threaded blind hole on the external connecting piece, and then the external rod body stretches into the lower through groove and the upper through groove to prop open the main body part and the movable part, so that the screw bolt part is compressed with the external threaded blind hole again after the screw bolt part is rotated, friction loss is reduced, and service life is prolonged;
2. through the cooperation of the locking sleeve, the pair of sliding grooves, the pair of sliding plates and the plurality of convex blocks, the main body part and the movable part can be mutually far away only by rotating the locking sleeve, so that the locking of the bolt part and the external threaded blind hole is realized;
3. through the cooperation of lock washer, a plurality of tight piece that support, a plurality of blind hole and a plurality of inserted bar, when movable part and main part separation, exert pressure to the lock washer, make each tight piece lower extreme of support sink into external connection spare surface, further lock bolt portion, make it unable rotatory.
Drawings
FIG. 1 is a perspective view of a locking bolt and its mating locking kit in an embodiment of the present application;
FIG. 2 is a front view of a locking bolt and its mating locking kit in an embodiment of the present application;
FIG. 3 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 2;
FIG. 4 is a schematic view of the cross-sectional structure in the direction B-B in FIG. 2;
fig. 5 is a schematic perspective view of a locking sleeve according to an embodiment of the present application;
FIG. 6 is a perspective view of a connection structure between a pair of side plates and a movable portion according to an embodiment of the present application;
FIG. 7 is a perspective view of a connecting structure of a middle plate and a movable part in an embodiment of the present application;
fig. 8 is a perspective view of a lock washer according to an embodiment of the present application.
Reference numerals
1-bolt part, 11-curb plate, 12-medium plate, 2-nut part, 21-main part, 22-down logical groove, 23-movable part, 24-interior hexagonal recess, 25-lug, 26-go up logical groove, 3-lock sleeve, 4-sliding groove, 41-side groove, 42-arc groove down, 5-slide, 6-guiding groove, 7-lock washer, 8-tight piece, 81-connection face, 82-facade, 83-inclined plane, 9-blind hole, 10-inserted bar.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The server provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.
Example 1:
as shown in fig. 1 to 7, the embodiment of the present application provides a lock bolt including a bolt portion 1 and a nut portion 2, the bolt portion 1 being cylindrical and including a pair of side plates 11 and a middle plate 12; the nut part 2 comprises a main body part 21, a lower through groove 22, a movable part 23 and an inner hexagonal groove 24, wherein the movable part 23 is fixedly connected with the middle plate 12, can slide in the lower through groove 22 in a lifting manner, a pair of side plates 11 are fixedly connected to two sides of the bottom surface of the main body part 21, and the inner hexagonal groove 24 is arranged on the main body part 21 and the movable part 23.
Preferably, an included angle of 2 ° is formed between adjacent side walls of the pair of side plates 11 and between opposite side walls of the middle plate 12.
Further, the nut portion 2 further includes a plurality of protruding blocks 25 symmetrically distributed at two ends of the top surface of the lower through groove 22.
Further, the nut portion 2 further includes an upper through groove 26 provided at the tip of the movable portion 23, extending in the longitudinal direction thereof, and penetrating at both ends.
In this embodiment of the present application, since the above-described structure is adopted, the nut portion 2 and the bolt portion 1 are rotated by the engagement of the socket wrench with the socket groove 24, so that the bolt portion 1 is screwed with the external threaded blind hole, and then the external rod body is inserted into the lower through groove 22 and the upper through groove 26, the bolt portion 1 and the pair of side plates 11 are lifted up, the nut portion 2 and the middle plate 12 are pressed down, the threads on the pair of side plates 11 and the threads on the middle plate 12 are moved in opposite directions, so that the locking with the external threaded blind hole is enabled, and the both ends of the top surface of the external rod body inserted into the upper through groove 26 and the lower through groove 22 are in interference engagement with the corresponding projections 25, so that the external rod body is ensured not to fall out of the upper through groove 26 and the lower through groove 22;
when the pair of side plates 11 descend and the middle plate 12 ascends, because the adjacent side walls have included angles, the pair of side plates 11 can be outwards stretched in the descending process, and the threads on the outer surfaces of the side plates 11 are in closer contact with the external threaded blind holes.
Example 2:
as shown in fig. 3 to 6, in the present embodiment, there is also disclosed a mating locking kit including a locking sleeve 3 rotatably sleeved outside a main body portion 21; a pair of sliding grooves 4 symmetrically arranged on the outer wall of the main body 21 and respectively communicated with two ends of the lower through groove 22; the pair of sliding plates 5 are symmetrically fixedly connected to the inner peripheral wall of the locking sleeve 3 and can slide between the two ends of the corresponding sliding groove 4 and the lower through groove 22.
Further, the device also comprises a pair of guide grooves 6 symmetrically arranged at two ends of the top surface of the movable part 23, and the left side and the right side of the bottom surface of the guide grooves 6 are inclined.
Further, the slide groove 4 includes a side groove 41 provided in the outer peripheral wall of the main body 21, and having a distal end penetrating; a lower arc groove 42 provided in the middle of the outer peripheral wall of the main body 21, one end of which is connected to the lower end of the side groove 41, and the other end of which extends in the screwing direction of the nut 2 to be connected to the end of the lower through groove 22.
In this embodiment of the present application, since the above-described structure is adopted, after the bolt portion 1 is screwed, the lock sleeve 3 is fitted over the outside of the main body portion 21, the pair of slide plates 5 slide from the side grooves 41 of each guide groove 6 into the corresponding lower arc grooves 42, and then the lock sleeve 3 is rotated, each slide plate 5 enters between the corresponding guide groove 6 and the end portion of the lower through groove 22 from the corresponding lower arc groove 42, the movable portion 23 and the main body portion 21 are pushed to move downward and upward, respectively, the pair of side plates 11 and the pair of middle plates 12 move correspondingly, and when the top surface of each slide plate 5 extends between the corresponding guide groove 6 and the end portion of the lower through groove 22, interference fit with each projection 25 is achieved;
the cross section of lock sleeve 3 lateral wall is the hexagon, makes things convenient for people to adopt spanner operation its rotation, when rotating lock sleeve 3, inserts interior hexagonal recess 24 with the allen wrench, and fixed nut portion 2 and bolt portion 1 prevent that nut portion 2 and bolt portion 1 from rotating again and leading to the screw wear.
Example 3:
as shown in fig. 6 and 8, in the present embodiment, in addition to the structural features of the foregoing embodiments, a lock washer 7 is included, which is fitted over the outside of the bolt portion 1; the plurality of abutting blocks 8 are annularly arranged and fixedly connected to the bottom surface of the lock washer 7.
Further, the abutting block 8 comprises a connecting surface 81, a vertical surface 82 and an inclined surface 83 which are sequentially connected end to end in the clockwise direction, the connecting surface 81 is fixedly connected with the bottom surface of the lock washer 7, and the inclined surface 83 faces the screwing direction of the bolt part 1.
Further, the device also comprises a plurality of blind holes 9 which are arranged at intervals on the bottom surface of the main body part 21; the inserting rods 10 are fixedly connected to the top surface of the anti-loosening washer 7, and the upper ends of the inserting rods are slidably inserted into corresponding blind holes 9.
In this embodiment of the present application, since the above-mentioned structure is adopted, when the main body portion 21 and the movable portion 23 are separated from each other, the lower end of the movable portion 23 downwardly extends out of the lower through groove 22, downwardly presses the lock washer 7, and makes the connection position of the connection surface 81 and the elevation 82 of each abutting block 8 sink into the surface of the external connection member, and the nut portion 2 and the bolt portion 1 cannot rotate by the cooperation of each insert rod 10 and the corresponding blind hole 9, thereby enhancing the locking.
It should be noted that, in this document, 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. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (10)

1. A locking bolt comprising a bolt portion (1) and a nut portion (2), characterized in that:
the bolt part (1) is cylindrical and comprises a pair of side plates (11) and a middle plate (12);
the nut part (2) comprises a main body part (21), a lower through groove (22), a movable part (23) and an inner hexagonal groove (24);
the movable part (23) is fixedly connected with the middle plate (12), can slide in the lower through groove (22) in a lifting mode, a pair of side plates (11) are fixedly connected to two sides of the bottom surface of the main body part (21), and inner hexagonal grooves (24) are formed in the main body part (21) and the movable part (23).
2. A locking bolt as defined in claim 1, wherein:
an included angle of 2 degrees is formed between the adjacent side walls of the side plates (11) and between the opposite side walls of the middle plate (12).
3. A locking bolt according to claim 1, wherein the nut portion (2) further comprises:
the lugs (25) are symmetrically distributed at two ends of the top surface of the lower through groove (22).
4. A locking bolt according to claim 1, wherein the nut portion (2) further comprises:
and an upper through groove (26) provided at the tip of the movable portion (23) and extending in the longitudinal direction thereof, and having both ends penetrating.
5. A mating locking kit adapted for the locking bolt of any one of claims 1-4, comprising:
a locking sleeve (3) rotatably sleeved outside the main body part (21);
a pair of sliding grooves (4) symmetrically arranged on the outer wall of the main body part (21) and respectively communicated with two ends of the lower through groove (22);
and the pair of sliding plates (5) are symmetrically fixedly connected to the inner peripheral wall of the locking sleeve (3) and can slide between the two ends of the corresponding sliding groove (4) and the lower through groove (22).
6. The mating locking kit of claim 5, further comprising:
a pair of guide grooves (6) symmetrically arranged at two ends of the top surface of the movable part (23);
wherein, the left side and the right side of the bottom surface of the pair of guide grooves (6) are inclined.
7. A mating locking kit according to claim 6, wherein the sliding groove (4) comprises:
a side groove (41) provided on the outer peripheral wall of the main body (21) and having a through tip;
and a lower arc groove (42) provided in the middle of the outer peripheral wall of the main body (21), one end of which is connected to the lower end of the side groove (41), and the other end of which extends in the screwing direction of the nut (2) to be connected to the end of the lower through groove (22).
8. The mating locking kit of claim 6, further comprising:
a lock washer (7) which is sleeved outside the bolt part (1);
the plurality of abutting blocks (8) are annularly arranged and fixedly connected to the bottom surface of the anti-loosening washer (7).
9. A mating locking kit according to claim 8, wherein the abutment block (8) comprises:
a connecting surface (81), a vertical surface (82) and an inclined surface (83) which are sequentially connected end to end along the clockwise direction;
wherein the connecting surface (81) is fixedly connected with the bottom surface of the lock washer (7), and the inclined surface (83) faces the screwing direction of the bolt part (1).
10. The mating locking kit of claim 8, further comprising:
the blind holes (9) are arranged on the bottom surface of the main body part (21) at intervals;
the inserting rods (10) are fixedly connected to the top surface of the anti-loosening washer (7), and the upper ends of the inserting rods can be inserted into corresponding blind holes (9) in a sliding mode.
CN202311213295.6A 2023-09-19 2023-09-19 Locking bolt and matched locking sleeve thereof Pending CN117267237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311213295.6A CN117267237A (en) 2023-09-19 2023-09-19 Locking bolt and matched locking sleeve thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311213295.6A CN117267237A (en) 2023-09-19 2023-09-19 Locking bolt and matched locking sleeve thereof

Publications (1)

Publication Number Publication Date
CN117267237A true CN117267237A (en) 2023-12-22

Family

ID=89215436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311213295.6A Pending CN117267237A (en) 2023-09-19 2023-09-19 Locking bolt and matched locking sleeve thereof

Country Status (1)

Country Link
CN (1) CN117267237A (en)

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