CN216009206U

CN216009206U - Anti-loosening screw fastener

Info

Publication number: CN216009206U
Application number: CN202121923952.2U
Authority: CN
Inventors: 应焕祥; 芦国军
Original assignee: Ningbo Fate Fastener Co ltd
Current assignee: Ningbo Fate Fastener Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-11
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses an anti-loosening screw fastener, which relates to the technical field of fasteners and comprises a fixed disc, wherein an outer rotating block is movably connected inside the fixed disc, a hollow groove is formed in one side of the outer rotating block, two gaskets are movably connected inside the hollow groove, springs are fixedly connected between the two gaskets, the springs are distributed in an annular array mode, the middle of the inner side of the fixed disc is fixedly connected with a plurality of slope clamping blocks, and a plurality of clamping grooves are formed in the bottom end of the outer rotating block. According to the utility model, the connection of the external rotating block can be realized by matching the fixed disk with the external rotating block, two gaskets are arranged in the hollow groove at one side of the external rotating block, and a plurality of springs are fixedly connected between the gaskets, so that the support of the external rotating block is matched with a plurality of slope clamping blocks through a plurality of clamping grooves, and the external rotating block can drive the fixed disk to rotate in a single direction.

Description

Anti-loosening screw fastener

Technical Field

The utility model relates to the technical field of fasteners, in particular to an anti-loosening screw fastener.

Background

The bolt and the nut are the most common fasteners and are generally applied to various fields, the bolt and the nut are connected by threads, and the self-locking capacity between the bolt and the nut comes from the matching of internal threads and external threads. In a relatively stable place, the matching between the bolt and the nut is relatively fixed, and the loosening condition cannot easily occur, but in some special use environments, such as the use in a vibration environment, the use in a strong motion environment, the use in equipment with high assembly requirements and the use in other special environments, the self-locking capability after the bolt is in threaded connection is not enough to maintain the stability of the bolt, in life, the bolt is more commonly used on a large vehicle, a plurality of parts on the vehicle need to be connected and fixed, the large vehicle shakes due to ground bump in the driving process, the loosening condition can occur in the connection between the bolt and the nut for a long time, and the loosening of a fastener directly affects the normal work of the related parts of the vehicle, so that the failure is easily caused.

In chinese utility model patent application no: CN202021083337.0 discloses an anti-loosening screw fastener, which includes a screw, a ratchet and a stop ring, wherein the stop ring is used to be fixed on the end face of a workpiece and faces the threaded hole of the workpiece, a locking opening is formed in the side wall of the stop ring around the axis direction of the stop ring, a stop pawl matched with the ratchet is arranged in the locking opening, the stop pawl is rotatably connected with the stop ring, an elastic member is installed between the stop pawl and the inner wall of the locking opening, the elastic member abuts against the stop pawl and enables the stop pawl to rotate inwards to extend into the central hole of the stop ring, the ratchet is integrally formed on the outer peripheral surface of the head of the screw or a square-shaped horse block with a square cross section is fixedly connected between the rod and the head of the screw, and a square-shaped hole for matching the horse block is formed in the middle of the ratchet. The anti-loosening screw fastener also has the defects of easy opening and poor anti-loosening effect in the use process, and has the problems of simple structure and unsatisfactory use effect.

Therefore, it is necessary to provide a screw fastener which is resistant to loosening to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to: the utility model provides a loosening-proof screw fastener, aiming at solving the problems that the loosening-proof screw fastener is easy to open and has poor loosening-proof effect in the using process, the structure is simple, and the using effect is not ideal.

(II) technical scheme

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a locking screw fastener that moves, includes the fixed disk, the inside swing joint of fixed disk has outer commentaries on classics piece, the dead slot has been seted up to one side of outer commentaries on classics piece, the inside swing joint of dead slot has two gaskets, two fixedly connected with spring between the gasket, the quantity of spring is a plurality of, and is a plurality of the spring is annular array and distributes, the inboard middle part of fixed disk has linked firmly a plurality of slope fixture blocks, a plurality of draw-in grooves have been seted up to the bottom of outer commentaries on classics piece, and is a plurality of the draw-in groove all is annular array and distributes with a plurality of slope fixture block looks adaptations.

Furthermore, the bottom end of the fixed disc is fixedly connected with a connecting column, and one side of the connecting column is provided with threads.

Furthermore, one side of the connecting column is movably connected with a nut, and the threads on one side of the nut are matched.

Furthermore, anti-skidding grooves are formed in one side, close to each other, of the nut and the fixed disc.

Furthermore, a plurality of slots are formed in the middle of the thread, and are distributed annularly.

Furthermore, a cavity is formed in the connecting column, and a movable hole is formed in one side of the cavity.

Furthermore, the quantity of activity hole is a plurality of, and is a plurality of the activity hole is the equidistant distribution of annular, the inside swing joint in activity hole has locking post.

Further, the inside swing joint of cavity has the screw rod, the one end of screw rod runs through and swing joint has the toper piece, the inside of toper piece is seted up threaded hole, threaded hole and screw rod looks adaptation.

Further, a through hole is formed in the outer rotating block, an inner rotating block is movably connected in the through hole, and the other end of the screw rod penetrates through the fixed disc, the outer rotating block and the inner rotating block to be fixedly connected.

(III) advantageous effects

The utility model has the following beneficial effects:

1. according to the utility model, the connection of the outer rotating block can be realized by matching the fixed disk with the outer rotating block, and the support of the outer rotating block can be matched with a plurality of slope clamping blocks through a plurality of clamping grooves by installing two gaskets in the empty groove at one side of the outer rotating block and fixedly connecting a plurality of springs between the gaskets, so that the outer rotating block can drive the fixed disk to rotate in a single direction, the fixed disk can slip when rotating in the opposite direction, and further the outer rotating block can not be loosened manually after the screw is screwed down and can only be screwed down but not loosened.

2. According to the utility model, the nut can be moved by matching the threads on one side of the connecting column with the nut, so that the purpose of fastening a screw is realized, the nut and the anti-slip groove formed on one side of the fixed disk can further prevent the nut from sliding after being screwed, and the anti-loosening effect is better during use.

3. According to the utility model, the tool is matched with the inner rotating block, so that the inner rotating block can rotate, and the screw rod can be driven to rotate, the conical block matched with the screw rod can move in the cavity, and the slope surface of the conical block can be matched with the anti-loosening column in the movable hole, so that the conical block can extend out of the movable hole, and the fastened nut can be tightly jacked to prevent the nut from moving, so that the anti-loosening effect of the nut is enhanced.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a schematic perspective cross-sectional view of the structure of the present invention;

FIG. 3 is a first partial perspective cross-sectional view of the structure of the present invention;

FIG. 4 is a second partial perspective cross-sectional view of the structure of the present invention;

FIG. 5 is an enlarged view of the structure of area A in FIG. 3 according to the present invention;

FIG. 6 is an enlarged view of the structure of region B in FIG. 2 according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 4 in accordance with the present invention;

FIG. 8 is an enlarged view of the structure of region D in FIG. 4 according to the present invention.

Reference numerals: 1. fixing the disc; 2. an outward turning block; 3. an empty groove; 4. a gasket; 5. a spring; 6. a card slot; 7. a slope fixture block; 8. connecting columns; 9. a thread; 10. a nut; 11. an anti-slip groove; 12. grooving; 13. a cavity; 14. a movable hole; 15. a locking post; 16. a screw; 17. a conical block; 18. a threaded hole; 19. a through hole; 20. and an internal rotation block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Please refer to fig. 5 and 6, a locking screw fastener that moves, including fixed disk 1, the inside swing joint of fixed disk 1 has outer commentaries on classics piece 2, the dead slot 3 has been seted up to one side of outer commentaries on classics piece 2, the inside swing joint of dead slot 3 has two gaskets 4, fixedly connected with spring 5 between two gaskets 4, the quantity of spring 5 is a plurality of, a plurality of springs 5 are the annular array and distribute, the inboard middle part of fixed disk 1 has linked firmly a plurality of slope fixture blocks 7, a plurality of draw-in grooves 6 have been seted up to the bottom of outer commentaries on classics piece 2, a plurality of draw-in grooves 6 all are the annular array with a plurality of slope fixture block 7 looks adaptations and distribute.

In this embodiment, can realize being connected to outer commentaries on classics piece 2 through fixed disk 1 and outer commentaries on classics piece 2 looks adaptation, through two gaskets 4 of outer 3 internally mounted in dead slots on one side of outer commentaries on classics piece and a plurality of springs 5 of fixed connection between gasket 4, thereby can realize passing through a plurality of draw-in grooves 6 and a plurality of slope fixture block 7 looks adaptations to the support of outer commentaries on classics piece 2, thereby can the unidirectional drive fixed disk 1 rotation with outer commentaries on classics piece 2, can appear skidding when rotatory to opposite direction, and then can not manual not hard up after the screw tightening, can only tighten and can not become hard up.

Example 2

Referring to fig. 1 and 2, the embodiment is further optimized based on embodiment 1, specifically, a connection column 8 is fixedly connected to the bottom end of the fixed disk 1, and a thread 9 is formed on one side of the connection column 8.

Specifically, one side of the connecting column 8 is movably connected with a nut 10, and the nut 10 is matched with the thread 9 on one side of the connecting column 8.

Specifically, the anti-slip grooves 11 are formed in the side, close to each other, of the nut 10 and the fixed disc 1.

Specifically, the middle part of the thread 9 is provided with a plurality of slots 12, and the slots 12 are distributed annularly.

In this embodiment, thereby through the removal that can realize nut 10 of the screw thread 9 of spliced pole 8 one side and nut 10 looks adaptation to this realizes the purpose of screw-on, can further prevent through the antiskid groove 11 that nut 10 and fixed disk 1 one side were seted up and slide appearing after screwing up, the locking effect of moving is better during the use.

Example 3

Referring to fig. 3, 4, 7 and 8, the embodiment is optimized based on the

embodiment

1 or 2, specifically, a cavity 13 is formed inside the connecting column 8, and a movable hole 14 is formed at one side of the cavity 13.

Specifically, the number of the movable holes 14 is multiple, the movable holes 14 are distributed in an annular shape at equal intervals, and the locking columns 15 are movably connected inside the movable holes 14.

Specifically, a screw 16 is movably connected inside the cavity 13, one end of the screw 16 penetrates through and is movably connected with a conical block 17, a threaded hole 18 is formed inside the conical block 17, and the threaded hole 18 is matched with the screw 16.

Specifically, a through hole 19 is formed in the outer rotating block 2, an inner rotating block 20 is movably connected in the through hole 19, and the other end of the screw 16 penetrates through the fixed disc 1 and the outer rotating block 2 and is fixedly connected with the inner rotating block 20.

In this embodiment, through instrument and interior turning block 20 looks adaptation, from making interior turning block 20 take place to rotate, and then can drive screw rod 16 rotatory, with this can make the toper piece 17 with screw rod 16 looks adaptation remove in cavity 13, slope through toper piece 17 can with the locking post 15 looks adaptation in the activity hole 14, thereby can make it stretch out activity hole 14, and then can push up tightly nut 10 after the fastening, prevent that it from taking place to remove, with this locking effect that strengthens nut 10.

In summary, the following steps: in the utility model, the connection of the outer rotating block 2 can be realized by matching the fixed disk 1 with the outer rotating block 2, the support of the outer rotating block 2 can be matched with a plurality of slope fixture blocks 7 through a plurality of clamping grooves 6 by installing two gaskets 4 in the hollow groove 3 at one side of the outer rotating block 2 and fixedly connecting a plurality of springs 5 between the gaskets 4, so that the outer rotating block 2 can drive the fixed disk 1 to rotate in one direction and can slip when rotating in the opposite direction, further the outer rotating block can not be loosened manually after screwing, only can be screwed but not loosened, the movement of the nut 10 can be realized by matching the thread 9 at one side of the connecting column 8 with the nut 10, thereby realizing the purpose of screw fastening, the anti-slip can be further prevented after screwing through the nut 10 and the groove 11 arranged at one side of the fixed disk 1, the anti-loosening effect is better when in use, and the outer rotating block 20 is matched with the inner rotating block through a tool, from can making the interior turning block 20 take place to rotate, and then can drive the screw rod 16 rotatory to this can make the toper piece 17 with screw rod 16 looks adaptation remove in cavity 13, slope through toper piece 17 can with the locking post 15 looks adaptation in the activity hole 14, thereby can make it stretch out activity hole 14, and then can push up tightly nut 10 after the fastening, prevent that it from taking place to remove, with this locking effect of reinforcing nut 10.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, and the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a locking screw fastener that moves, includes fixed disk (1), its characterized in that: the inside swing joint of fixed disk (1) has outer commentaries on classics piece (2), dead slot (3) have been seted up to one side of outer commentaries on classics piece (2), the inside swing joint of dead slot (3) has two gaskets (4), two fixedly connected with spring (5) between gasket (4), the quantity of spring (5) is a plurality of, and is a plurality of spring (5) are the annular array and distribute, the inboard middle part of fixed disk (1) is fixedly connected with a plurality of slope fixture blocks (7), a plurality of draw-in grooves (6) have been seted up to the bottom of outer commentaries on classics piece (2), and is a plurality of draw-in groove (6) all are the annular array and distribute with a plurality of slope fixture blocks (7) looks adaptation.

2. A locking screw fastener as defined in claim 1, wherein: the bottom end of the fixed disc (1) is fixedly connected with a connecting column (8), and one side of the connecting column (8) is provided with a thread (9).

3. A locking screw fastener as claimed in claim 2, wherein: one side of the connecting column (8) is movably connected with a nut (10), and the nut (10) is matched with the thread (9) on one side of the connecting column (8).

4. A locking screw fastener as defined in claim 3, wherein: and anti-skidding grooves (11) are formed in one sides, close to each other, of the nuts (10) and the fixed disc (1).

5. A locking screw fastener as claimed in claim 2, wherein: the middle part of the thread (9) is provided with a plurality of slots (12), and the slots (12) are distributed annularly.

6. A locking screw fastener as claimed in claim 2, wherein: a cavity (13) is formed in the connecting column (8), and a movable hole (14) is formed in one side of the cavity (13).

7. A locking screw fastener as defined in claim 6, wherein: the quantity of activity hole (14) is a plurality of, and is a plurality of activity hole (14) are the equidistant distribution of annular, the inside swing joint of activity hole (14) has locking post (15).

8. A locking screw fastener as defined in claim 6, wherein: the inside swing joint of cavity (13) has screw rod (16), the one end of screw rod (16) is run through and swing joint has toper piece (17), screw hole (18) have been seted up to the inside of toper piece (17), screw hole (18) and screw rod (16) looks adaptation.

9. A locking screw fastener as defined in claim 1, wherein: the inner rotating block is characterized in that a through hole (19) is formed in the outer rotating block (2), an inner rotating block (20) is movably connected to the inside of the through hole (19), and the other end of the screw rod (16) penetrates through the fixed disc (1) and the outer rotating block (2) and is fixedly connected with the inner rotating block (20).