CN218718112U

CN218718112U - Bolt assembly capable of being automatically locked

Info

Publication number: CN218718112U
Application number: CN202223095903.1U
Authority: CN
Inventors: 赖宝贵
Original assignee: Ming Yang Auto Parts Manufacturing Co ltd
Current assignee: Ming Yang Auto Parts Manufacturing Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-24
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a but bolt assembly of automatic locking, including bolt body and catch, the recess that is used for bolt body head embedding is offered to the inside of catch, and catch and bolt body screw-thread fit, hexagonal groove in the intermediate position department of the inside upper end of bolt body has seted up still includes the slip chamber, and it is seted up the below in hexagonal groove, the inside upper end of slip chamber slides and is provided with and presses the briquetting, the one end of pressing the briquetting extends to the inside in hexagonal groove, and presses briquetting and interior hexagonal groove sliding fit, the fixed guide bar that is annular equidistance and distributes that is provided with of the lower extreme of slip chamber, the outside of guide bar all slides and is provided with the slider. This but bolt assembly of automatic locking can realize the function of auto-lock between bolt body and the catch after the screw thread is screwed up, effectively avoids the phenomenon of bolt assembly pine to take place.

Description

Bolt assembly capable of being automatically locked

Technical Field

The utility model relates to a bolt assembly technical field specifically is a bolt assembly that can lock automatically.

Background

A bolt is a mechanical part, a cylindrical threaded fastener with a nut, a fastener consisting of a head and a screw (a cylinder with an external thread), and is required to be matched with the nut to be used for fastening and connecting two parts with through holes, the connection form is called bolt connection, and a bolt assembly is a device for fastening two parts together.

The chinese patent that has an application number CN207005062U now discloses a prevent bolt corrosion ageing locking Assembly, including nut and protective sheath, nut and protective sheath pass through screw-thread fit together fixedly, the nut includes nut end and link, nut end and link fixed connection, the outline of nut end is regular polygon, so that the centre gripping is dismantled, nut end inner wall is equipped with the internal thread, it is fixed with the bolt fit, the link is hollow screw, be provided with the external screw thread on hollow screw's the outer wall, so that with protective sheath fixed connection, hollow screw's external diameter is less than nut end regular polygon's inscribed circle, protective sheath inner wall have with link complex internal thread, in order to fix the protective sheath on the link.

Although above-mentioned scheme can effectively protect the bolt to prevent corroding, when the part after bolt assembly fastening vibrations phenomenon appears, bolt assembly pine takes off appears easily to can influence the fastness that two parts are fixed, consequently unsatisfied current demand, but we have proposed the bolt assembly that can lock automatically to this.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but bolt assembly of automatic locking to the bolt assembly who proposes takes off the problem that influences fixed fastness easily in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a bolt assembly capable of being automatically locked comprises a bolt body and a locking ring, wherein a groove for embedding the head of the bolt body is formed in the locking ring, the locking ring is in threaded fit with the bolt body, and an inner hexagonal groove is formed in the middle of the upper end in the bolt body;

the sliding cavity is arranged below the inner hexagonal groove, a pressing block is arranged at the upper end inside the sliding cavity in a sliding mode, one end of the pressing block extends into the inner hexagonal groove and is in sliding fit with the inner hexagonal groove, four guide rods which are distributed in an annular and equidistant mode are fixedly arranged at the lower end inside the sliding cavity, sliding blocks are arranged outside the guide rods in a sliding mode, the sliding blocks are in transmission connection with the pressing block through connecting blocks, and the connecting blocks are in rotating connection with the sliding blocks and the pressing block;

still include the transmission chamber, it is seted up the outside in sliding chamber, and the transmission chamber is annular equidistance and distributes and seted up four, the inside in transmission chamber all is provided with first briquetting, the below of first briquetting one side all is provided with the second briquetting, the top of first briquetting is all fixed and is provided with first slide bar, one side of second briquetting is all fixed and is provided with the second slide bar, all be connected through sliding connection piece between first briquetting and the first slide bar and between second briquetting and the second slide bar, and sliding connection piece all with first slide bar and second slide bar sliding fit.

Preferably, the first slide bar is sleeved with a first return spring, and one end of the first return spring is connected with one of the sliding connection blocks.

Preferably, the second slide bar is sleeved with a second return spring, and one end of the second return spring is connected with one of the sliding connection blocks.

Preferably, four limiting grooves which are distributed in an annular equidistant mode are formed in the upper end of the locking ring, limiting blocks are welded at the lower end of the second pressing block, one ends of the limiting blocks penetrate through and extend to the outer portion of the transmission cavity, the limiting blocks are in sliding fit with the transmission cavity, and the ends, located at the outer portion of the transmission cavity, of the limiting blocks are matched with the limiting grooves.

Preferably, two transmission rods are welded above and below the inner side of the first pressing block, one end of each transmission rod penetrates through and extends into the sliding cavity, the transmission rods are in sliding fit with the sliding cavity and the transmission cavity, and one end, located inside the transmission cavity, of each transmission rod is welded and fixed with the sliding block.

Preferably, the middle position of the lower end in the transmission cavity is connected with the pressing block through a first compression spring.

Preferably, the outside of guide bar all is equipped with the second compression spring, and the one end of second compression spring all is connected with the slider.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with the stopper in the transmission intracavity, the spacing groove has been seted up to the inside upper end of catch, through making the stopper card go into the spacing inslot, can increase the firm in connection nature of bolt body and catch, can prevent effectively that bolt body is rotatory in the catch, and the pine that has avoided bolt assembly takes off the phenomenon and takes place.

2. The utility model discloses a be provided with first reset spring in the transmission intracavity, the slip intracavity is provided with second compression spring, and the elastic action through first reset spring and second compression spring can make first briquetting extrude spacingly to the second briquetting to make the stopper card go into the spacing inslot that can firmly, prevent that the stopper from shifting out and spacing groove, increased the fastness of connection.

3. The utility model discloses a hexagon socket head cap groove has been seted up in bolt body upper end, can extrude when hexagon socket head cap spanner inserts interior hexagon groove and press the briquetting to can make the slider drive the transfer line and remove, it is spacing to the extrusion of second briquetting to make first briquetting remove, thereby can convenient and fast remove automatic locking mechanism, the convenient catch that screws out the bolt body.

Drawings

Fig. 1 is a front view of the internal structure of the present invention;

fig. 2 is a side view of the internal structure of the present invention;

fig. 3 is a top view of the internal structure of the present invention;

fig. 4 is a partially enlarged view of the area a in fig. 1 according to the present invention;

fig. 5 is a partially enlarged view of the area B in fig. 1 according to the present invention.

In the figure: 1. a bolt body; 2. a locking ring; 3. an inner hexagonal groove; 4. a pressing block; 5. a first compression spring; 6. a transmission cavity; 7. a first pressing block; 8. a second pressing block; 9. a first slide bar; 10. a first return spring; 11. a second slide bar; 12. a second return spring; 13. a sliding connection block; 14. a transmission rod; 15. a slider; 16. a guide bar; 17. a second compression spring; 18. connecting blocks; 19. a limiting block; 20. a limiting groove; 21. a sliding cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a bolt assembly capable of being automatically locked comprises a bolt body 1 and a locking ring 2, wherein a groove used for embedding the head of the bolt body 1 is formed in the locking ring 2, the locking ring 2 is in threaded fit with the bolt body 1, and an inner hexagonal groove 3 is formed in the middle position of the upper end in the bolt body 1;

the sliding device is characterized by further comprising a sliding cavity 21, the sliding cavity is arranged below the inner hexagonal groove 3, the pressing block 4 is arranged at the upper end inside the sliding cavity 21 in a sliding mode, one end of the pressing block 4 extends into the inner hexagonal groove 3, the pressing block 4 is in sliding fit with the inner hexagonal groove 3, four guide rods 16 which are distributed annularly and equidistantly are fixedly arranged at the lower end inside the sliding cavity 21, sliding blocks 15 are arranged outside the guide rods 16 in a sliding mode, the sliding blocks 15 are in transmission connection with the pressing block 4 through connecting blocks 18, and the connecting blocks 18 are in rotation connection with the sliding blocks 15 and the pressing block 4;

still include transmission chamber 6, it sets up in the outside of sliding chamber 21, and transmission chamber 6 is annular equidistance and distributes and has seted up four, the inside in transmission chamber 6 all is provided with first briquetting 7, the below of first briquetting 7 one side all is provided with second briquetting 8, the top of first briquetting 7 is all fixed and is provided with first slide bar 9, one side of second briquetting 8 is all fixed and is provided with second slide bar 11, all be connected through sliding connection piece 13 between first briquetting 7 and the first slide bar 9 and between second briquetting 8 and the second slide bar 11, and sliding connection piece 13 all with first slide bar 9 and second slide bar 11 sliding fit. This but bolt assembly of automatic locking inserts hexagon socket head cap spanner when hexagonal groove 3 in, transmission through connecting block 18 can make slider 15 drive transfer line 14 remove, it is spacing to the extrusion of second briquetting 8 to make first briquetting 7 relieve, thereby can make stopper 19 move into transmission chamber 6, it is convenient fixed with bolt body 1 and catch 2, when hexagon socket head cap spanner shifts out hexagon socket head cap groove 3, can make first briquetting 7 extrude spacingly to second briquetting 8 once more under the elastic recovery effect of first reset spring 10 and second compression spring 17, thereby can make stopper 19 move into in spacing groove 20, rethread stopper 19 is fixed with the gomphosis of spacing groove 20, can increase the fastness of being connected of bolt body 1 and catch 2, can effectively prevent the rotation of bolt body 1 in catch 2, the pine of having avoided bolt assembly to take off the phenomenon and take place.

Referring to fig. 4, a first return spring 10 is sleeved outside each first sliding rod 9, and one end of each first return spring 10 is connected to one of the sliding connection blocks 13, so that the first pressing block 7 can extrude and limit the second pressing block 8 again under the elastic recovery action of the first return spring 10, and the position of the second pressing block 8 can be restored;

referring to fig. 4, a second return spring 12 is sleeved outside each second sliding rod 11, and one end of each second return spring 12 is connected to one of the sliding connection blocks 13, so that the second return spring 12 can be pulled to drive the limiting block 19 to slide into the transmission cavity 6;

referring to fig. 3 and 4, the upper end of the locking ring 2 is provided with four limiting grooves 20 distributed in an annular and equidistant manner, the lower end of the second pressing block 8 is welded with limiting blocks 19, one end of each limiting block 19 penetrates through and extends to the outside of the transmission cavity 6, the limiting blocks 19 are in sliding fit with the transmission cavity 6, one end of each limiting block 19 located outside the transmission cavity 6 is matched with the corresponding limiting groove 20, and the connecting firmness between the bolt body 1 and the locking ring 2 can be improved by the embedded fixation of the limiting blocks 19 and the limiting grooves 20;

referring to fig. 4 and 5, two transmission rods 14 are welded above and below the inner side of the first pressing block 7, one ends of the transmission rods 14 penetrate through and extend into the sliding cavity 21, the transmission rods 14 are in sliding fit with the sliding cavity 21 and the transmission cavity 6, one ends of the transmission rods 14 located in the transmission cavity 6 are welded and fixed with the sliding block 15, and the transmission rods 14 can synchronously drive the first pressing block 7 to move when the sliding block 15 slides;

referring to fig. 1 and 2, the middle position of the lower end inside the transmission cavity 6 is connected with the pressing block 4 through a first compression spring 5, and the first compression spring 5 can restore the position of the pressing block 4, so that the use is convenient;

referring to fig. 4 and 5, a second compression spring 17 is sleeved outside the guide rod 16, and one end of the second compression spring 17 is connected to the slider 15, so that the first pressing block 7 can press and limit the second pressing block 8 again under the elastic recovery action of the second compression spring 17, and the position of the second pressing block 8 can be restored.

The working principle is as follows: when the device is used, the locking ring 2 is tightly embedded with a counter bore in a first part to be fixed, the embedding process can be completed by adopting a press, then an inner hexagonal wrench is inserted into the inner hexagonal groove 3, a screw rod part of the bolt body 1 penetrates through a through hole in the locking ring 2 and the counter bore in the first part to be fixed and then is screwed with a threaded hole in a second part to be fixed, the inner hexagonal wrench can drive the pressing block 4 to press downwards and compress the first compression spring 5 when inserted into the inner hexagonal groove 3, the sliding block 15 can be driven to slide on the guide rod 16 and compress the second compression spring 17 through the transmission of the connecting block 18, one end of the sliding block 15 can synchronously drive the transmission rod 14 to move, the transmission rod 14 can move the first pressing block 7 at one end, the first pressing block 7 can move to drive one sliding connecting block 13 to slide on the first sliding rod 9 and compress the first return spring 10, the second pressing block 8 can lose the extrusion limit by the movement of the first pressing block 7, so that the limiting block 19 can be driven to slide into the transmission cavity 6 under the pulling of the second reset spring 12, thereby the bolt body 1 and the locking ring 2 can be conveniently fixed, the use is convenient, when the inner hexagonal wrench moves out of the inner hexagonal groove 3, the position of the pressing block 4 can be driven to recover by the spring recovery action of the first compression spring 5, so that the position of the sliding block 15 can be recovered by the transmission of the connecting block 18, meanwhile, the first pressing block 7 can extrude and limit the second pressing block 8 again under the common elastic recovery action of the second compression spring 17 and the first reset spring 10, thereby the position of the second pressing block 8 can be recovered, the limiting block 19 is driven to be clamped into the inside of the limiting groove 20, the connection firmness of the bolt body 1 and the locking ring 2 can be increased by clamping the limiting block 19 into the limiting groove 20, can effectively prevent the rotation of bolt body 1 in catch 2, avoid bolt assembly's pine to take place.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a but bolt assembly of automatic locking, includes bolt body (1) and catch (2), the inside of catch (2) is seted up and is used for the recess of bolt body (1) head embedding, and catch (2) and bolt body (1) screw-thread fit, interior hexagonal groove (3), its characterized in that have been seted up to the intermediate position department of the inside upper end of bolt body (1):

the novel hexagonal socket is characterized by further comprising a sliding cavity (21) which is arranged below the inner hexagonal groove (3), a pressing block (4) is arranged at the upper end inside the sliding cavity (21) in a sliding mode, one end of the pressing block (4) extends into the inner hexagonal groove (3), the pressing block (4) is in sliding fit with the inner hexagonal groove (3), four guide rods (16) which are distributed annularly and equidistantly are fixedly arranged at the lower end inside the sliding cavity (21), sliding blocks (15) are arranged outside the guide rods (16) in a sliding mode, the sliding blocks (15) are in transmission connection with the pressing block (4) through connecting blocks (18), and the connecting blocks (18) are in rotating connection with the sliding blocks (15) and the pressing block (4);

still include transmission chamber (6), it sets up the outside in slip chamber (21), and transmission chamber (6) are annular equidistance and distribute and seted up four, the inside in transmission chamber (6) all is provided with first briquetting (7), the below of first briquetting (7) one side all is provided with second briquetting (8), the top of first briquetting (7) is all fixed and is provided with first slide bar (9), one side of second briquetting (8) is all fixed and is provided with second slide bar (11), all be connected through sliding connection piece (13) between first briquetting (7) and first slide bar (9) and between second briquetting (8) and second slide bar (11), and sliding connection piece (13) all with first slide bar (9) and second slide bar (11) sliding fit.

2. An auto-lockable bolt assembly according to claim 1, wherein: the outer portion of the first sliding rod (9) is sleeved with a first return spring (10), and one end of the first return spring (10) is connected with one of the sliding connection blocks (13).

3. An automatically lockable bolt assembly according to claim 1, characterised in that: and a second return spring (12) is sleeved outside the second sliding rod (11), and one end of the second return spring (12) is connected with one of the sliding connecting blocks (13).

4. An auto-lockable bolt assembly according to claim 1, wherein: four limiting grooves (20) which are distributed in an annular equal distance mode are formed in the upper end of the locking ring (2), limiting blocks (19) are welded to the lower end of the second pressing block (8), one ends of the limiting blocks (19) penetrate through and extend to the outer portion of the transmission cavity (6), the limiting blocks (19) are in sliding fit with the transmission cavity (6), and one ends, located at the outer portion of the transmission cavity (6), of the limiting blocks (19) are matched with the limiting grooves (20) in a matched mode.

5. An automatically lockable bolt assembly according to claim 1, characterised in that: two transfer lines (14) are all welded to the upper and lower side of first briquetting (7) inboard, the one end of transfer line (14) all runs through and extends to the inside of sliding chamber (21), and transfer line (14) all with sliding chamber (21) and transmission chamber (6) sliding fit, transfer line (14) are located the inside one end of transmission chamber (6) and all with slider (15) welded fastening.

6. An auto-lockable bolt assembly according to claim 1, wherein: the middle position of the lower end in the transmission cavity (6) is connected with the pressing block (4) through a first compression spring (5).

7. An auto-lockable bolt assembly according to claim 1, wherein: the outside of guide bar (16) all is equipped with second compression spring (17) with the one end of second compression spring (17) all be connected with slider (15).