CN211573988U

CN211573988U - Better bolt of locking effect

Info

Publication number: CN211573988U
Application number: CN202020133385.XU
Authority: CN
Inventors: 周锋
Original assignee: Shanghai Zhongxin Hardware Manufacture Co ltd
Current assignee: Shanghai Zhongxin Hardware Manufacture Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-09-25
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to the field of bolt production and manufacture, and discloses a bolt with good locking effect, the screw rod is fixedly connected with the nut, a concave hole is arranged in the middle of the screw rod, one end of the concave hole, far away from the nut, is connected with a first spring, the first spring is fixedly connected with a locking rod, two locking devices are arranged at the position, close to the first spring, of the screw rod, when using the bolt, the screw rod is equipped with the external screw thread, be convenient for with connecting piece threaded connection, spring one is in tensile state under natural state, all the time with the check lock lever to keeping away from nut one end pulling, spring two is when natural state, the bar piece is located the spreader inside, tight pole is stretched by spring one, the conical surface and the bar piece of check lock lever are inconsistent, promote the bar piece to keeping away from check lock lever one end, bar piece two passes the square hole, the slipmat is inconsistent with the inner wall in connecting piece hole, frictional force is great, make the bolt be difficult for taking off from the connecting piece pine.

Description

Better bolt of locking effect

Technical Field

The utility model belongs to the technical field of bolt manufacturing and specifically relates to a better bolt of locking effect is related to.

Background

Bolts are a common fastener and are widely used in machinery, electrical appliances and buildings. In the prior art, the bolt mainly comprises a bolt head and a screw rod. The bolt is normally engaged in use with a hole in the connector.

Chinese patent publication No. CN102777464A discloses a multi-head screw, which consists of a screw rod provided with threads and a screw head arranged above the screw rod, wherein a hexagon socket counter bore is arranged above the screw head; the screw head is in a rectangular structure; the bottom of the inner hexagonal counter bore is provided with a cross groove; the bottom of the inner hexagonal counter bore is provided with a straight groove. The multi-head screw has the advantages of simple structure, wide application range, low production cost and convenience in popularization, and can be installed according to a carrying tool during installation, so that the working efficiency is ensured.

The above prior art solutions have the following drawbacks: above-mentioned bull screw is in long-time use, and the bolt often regards as fastener threaded connection on mechanical product, and the engine during operation in the product can produce vibrations, and long-time vibrations environment makes the bolt loosen from the connecting piece easily, causes each part to connect unstablely.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a better bolt of locking effect, it has the advantage that difficult follow connecting piece pine takes off.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a better bolt of locking effect, includes screw rod and nut, screw rod and nut fixed connection, the one end that the nut was kept away from to the screw rod is equipped with the external screw thread, the screw rod middle part is equipped with the shrinkage pool, the one end that the nut was kept away from to the shrinkage pool is connected with spring one, a spring fixedly connected with check lock lever, check lock lever and shrinkage pool sliding connection, the one end that check lock lever and spring one are connected is the toper, and the screw rod is close to spring one and locates to be equipped with two locking device, and locking device includes bar piece, spring two and hollow spreader, and the both ends of spreader have been seted up the square hole, and the bar piece passes the square hole and with spreader sliding connection, the both ends of spring two respectively with spreader inner wall and bar piece fixed connection, the one end that the check.

Through adopting above-mentioned technical scheme, when using the bolt, the screw rod is equipped with the external screw thread, be convenient for with connecting piece threaded connection, spring one is in tensile state under natural state, all the time with the check lock lever to keeping away from nut one end pulling, spring two is when natural state, the bar piece is located the spreader inside, tight pole is stretched by spring one, the conical surface and the bar piece of check lock lever are inconsistent, promote the bar piece to keeping away from check lock lever one end, bar piece two passes the square hole, the slipmat is inconsistent with the inner wall in connecting piece hole, frictional force is great, make the bolt be difficult for taking off from the connecting piece pine.

The present invention may be further configured in a preferred embodiment as: the square hole that keeps away from check lock lever one end is connected with the sleeve, bar piece and sleeve sliding connection respectively with square piece and spreader inner wall fixed connection, the spring two in the one end that the spreader is close to the check lock lever, the both ends of spring two.

Through adopting above-mentioned technical scheme, when the bar piece slided in the spreader, bar piece and sleeve sliding connection, the sleeve carries on spacingly to the bar piece for the skew can not take place for the bar piece when sliding, avoids the bar piece to support with the spreader inner wall when following the spreader roll-off, the slip of the bar piece of being convenient for.

The present invention may be further configured in a preferred embodiment as: the screw rod is connected with an annular gasket, and the annular gasket is located between the external thread and the nut.

Through adopting above-mentioned technical scheme, through setting up annular gasket, increased the area of contact between bolt and the connecting piece, reduce the pressure that the connecting piece received, reduced the wearing and tearing of connecting piece, be favorable to strengthening the connection steadiness between bolt and the connecting piece simultaneously.

The present invention may be further configured in a preferred embodiment as: one end of the locking rod, which is far away from the first spring, is provided with a sealing gasket matched with the concave hole.

Through adopting above-mentioned technical scheme, through setting up sealed the pad, strengthen the leakproofness of being connected of check lock lever and shrinkage pool, avoid in dust impurity gets into the shrinkage pool, reduce the wearing and tearing of check lock lever, prolong the life of check lock lever and spring one.

The present invention may be further configured in a preferred embodiment as: the end face, far away from the first spring, of the locking rod is fixedly connected with a pull ring.

Through adopting above-mentioned technical scheme, people are when dismantling the bolt, through the pulling pull ring, with the locking lever to keeping away from the pulling of spring one end, and then the convenience is dismantled whole bolt.

The present invention may be further configured in a preferred embodiment as: and a chamfer is arranged at one end of the concave hole, which is far away from the first spring.

Through adopting above-mentioned technical scheme, through setting up the chamfer, reduce the wearing and tearing to the locking lever, the locking lever of being convenient for inserts in the concave hole.

The present invention may be further configured in a preferred embodiment as: and sealing agents are coated on the surfaces of the screw and the screw cap.

By adopting the technical scheme, the bolt is protected by smearing the sealing agent, and the corrosion resistance and the wear resistance of the bolt are favorably enhanced.

The present invention may be further configured in a preferred embodiment as: the nut is connected with two lugs.

Through adopting above-mentioned technical scheme, through setting up the journal stirrup, move the journal stirrup through twisting for operating personnel is comparatively convenient when installation and dismantlement bolt.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the bolt is used, the screw rod is provided with external threads, the screw rod is conveniently in threaded connection with the connecting piece, the first spring is in a stretching state in a natural state and always pulls the locking rod to one end far away from the nut, the second spring is in a natural state, the bar-shaped block is positioned in the transverse column, the tightening rod is stretched by the first spring, the conical surface of the locking rod is abutted against the bar-shaped block and pushes the bar-shaped block to one end far away from the locking rod, the second bar-shaped block penetrates through the square hole, the anti-skid pad is abutted against the inner wall of the connecting piece hole, and friction force is large, so that the bolt is;

2. the strip-shaped block is connected with the sleeve in a sliding manner, and the sleeve limits the strip-shaped block, so that the strip-shaped block cannot deviate during sliding, the strip-shaped block is prevented from abutting against the inner wall of the transverse column when slipping out of the transverse column, and the strip-shaped block can slide conveniently;

3. set up annular gasket, increased the area of contact between bolt and the connecting piece, reduced the pressure that the connecting piece received, reduced the wearing and tearing of connecting, be favorable to strengthening the connection steadiness between bolt and the connecting piece simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment.

FIG. 2 is a cross-sectional view of a screw and nut.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure, 1, a screw; 2. a nut; 3. an external thread; 4. concave holes; 5. a first spring; 6. a locking lever; 7. a locking device; 8. a bar-shaped block; 9. a second spring; 10. a cross post; 11. a square hole; 12. a non-slip mat; 13. a square block; 14. a sleeve; 15. an annular gasket; 16. a gasket; 17. a pull ring; 18. and (6) supporting the ear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a better bolt of locking effect, including screw rod 1 and nut 2, screw rod 1 and nut 2 fixed connection, the one end that nut 2 was kept away from to screw rod 1 is equipped with external screw thread 3, and 1 middle part of screw rod is equipped with shrinkage pool 4, and the one end that nut 2 was kept away from to shrinkage pool 4 is connected with spring 5, and spring 5 fixedly connected with check lock lever 6, check lock lever 6 and shrinkage pool 4 sliding connection, the one end that check lock lever 6 and spring 5 are connected is the toper. When the bolt is used, the screw rod 1 is provided with the external thread 3 so as to be convenient for being in threaded connection with the connecting piece, the locking rod 6 is positioned in the concave hole 4, the spring I5 is in a stretching state in a natural state, the locking rod 6 is always pulled towards one end far away from the nut 2,

referring to fig. 1, the surfaces of the screw rod 1 and the nut 2 are both coated with the sealant, and the sealant is coated to protect the bolt, so that the corrosion resistance and the wear resistance of the bolt are enhanced. When the bolt is disassembled, the locking rod 6 is far away from the pull ring 17 fixedly connected with the end face of the first spring 5, and the locking rod 6 is pulled towards the end far away from the first spring 5 by pulling the pull ring 17, so that the whole bolt is conveniently disassembled. The nut 2 is connected with two support lugs 18, and the support lugs 18 are screwed, so that an operator can conveniently install and disassemble the bolt.

Referring to fig. 1, screw rod 1 is connected with annular gasket 15, and annular gasket 15 is located between external screw thread 3 and nut 2, through setting up annular gasket 15, has increased the area of contact between bolt and the connecting piece, reduces the pressure that the connecting piece received, has reduced the wearing and tearing of connecting piece, is favorable to strengthening the stability of being connected between bolt and the connecting piece simultaneously.

Referring to fig. 2 and 3, the screw rod 1 is close to the first 5 spring places and is equipped with two locking devices 7, and locking devices 7 include bar-shaped block 8, the second 9 spring and hollow spreader 10, and square hole 11 has been seted up at the both ends of spreader 10, bar-shaped block 8 pass square hole 11 and with spreader 10 sliding connection, the both ends of the second spring 9 respectively with spreader 10 inner wall and bar-shaped block 8 fixed connection, the one end that the check lock lever 6 was kept away from to bar-shaped block 8 is connected with slipmat 12.

Referring to fig. 2 and 3, 6 one end of check lock lever is the toper, and spring two 9 is when natural state, and bar 8 is located the spreader 10 inside, and tight pole is stretched by spring one 5, and the conical surface of check lock lever 6 offsets with bar 8 of locking device 7, promotes bar 8 to keeping away from 6 one end of check lock lever, and bar 8 passes square hole 11, and slipmat 12 offsets with the inner wall in connecting piece hole, and frictional force is great for the bolt is difficult for taking off from the connecting piece pine. When dismantling the bolt from the connecting piece, with the 5 one end pulling of check lock lever 6 to keeping away from spring, check lock lever 6 and bar piece 8 separation, bar piece 8 slides to 4 one ends of shrinkage pool, and slipmat 12 and connecting piece separation, and then dismantle whole bolt.

Referring to fig. 2, the end, far away from the first spring 5, of the concave hole 4 is provided with a chamfer, so that abrasion to the locking rod 6 is reduced, and the locking rod 6 can be conveniently inserted into the concave hole 4. The one end that spring 5 was kept away from to check lock lever 6 is equipped with the sealed pad 16 with shrinkage pool 4 matched with, strengthens the leakproofness of being connected of check lock lever 6 and shrinkage pool 4, avoids in dust impurity gets into shrinkage pool 4, reduces the wearing and tearing of check lock lever 6, prolongs the life of check lock lever 6 and spring 5.

Referring to fig. 3, 8 outer wall fixedly connected with square pieces 13 of bar shape, spring two 9 are located the one end that the spreader 10 is close to check lock lever 6, the both ends of spring two 9 respectively with

square pieces

13 and 10 inner wall fixed connection of spreader, the square hole 11 of keeping away from 6 one end of check lock lever is connected with sleeve 14, bar shape 8 and sleeve 14 sliding connection, bar shape 8 is when sliding in spreader 10, bar shape 8 and sleeve 14 sliding connection, sleeve 14 is spacing to bar shape 8, make bar shape 8 can not take place the skew when sliding, avoid bar shape 8 to support with spreader 10 inner wall when following spreader 10 interior roll-off, be convenient for the slip of bar shape 8.

The implementation principle of the embodiment is as follows: when using the bolt, screw rod 1 is equipped with external screw thread 3, be convenient for with connecting piece threaded connection, check lock lever 6 is located shrinkage pool 4, spring 5 is in tensile state under natural state, all the time with check lock lever 6 to keeping away from 2 one end pulling of nut, 6 one end of check lock lever is the toper, spring two 9 is when natural state, bar-shaped piece 8 is located spreader 10 inside, the tight pole is stretched by spring 5, the conical surface of check lock lever 6 offsets with bar-shaped piece 8 of locking device 7, it promotes bar-shaped piece 8 to keeping away from 6 one end of check lock lever, bar-shaped piece 8 passes square hole 11, slipmat 12 offsets with the inner wall in connecting piece hole, frictional force is great, make the bolt difficult from the connecting piece pine take off. When dismantling the bolt from the connecting piece, with the 5 one end pulling of check lock lever 6 to keeping away from spring, check lock lever 6 and bar piece 8 separation, bar piece 8 slides to 4 one ends of shrinkage pool, and slipmat 12 and connecting piece separation, and then dismantle whole bolt.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a better bolt of locking effect, includes screw rod (1) and nut (2), its characterized in that: the screw rod (1) is fixedly connected with the screw cap (2), an external thread (3) is arranged at one end, far away from the screw cap (2), of the screw rod (1), a concave hole (4) is formed in the middle of the screw rod (1), one end, far away from the screw cap (2), of the concave hole (4) is connected with a first spring (5), a first spring (5) is fixedly connected with a locking rod (6), the locking rod (6) is in sliding connection with the concave hole (4), one end, connected with the first spring (5), of the locking rod (6) is conical, two locking devices (7) are arranged at the position, close to the first spring (5), of the screw rod (1), each locking device (7) comprises a strip-shaped block (8), a second spring (9) and a hollow transverse column (10), square holes (11) are formed in two ends of the transverse column (10), the strip-shaped block (8) penetrates through the square holes (11) and is in sliding connection with the transverse column (10), and two ends of the second spring (9, one end of the strip-shaped block (8) far away from the locking rod (6) is connected with an anti-skid pad (12).

2. The bolt with the good locking effect according to claim 1 is characterized in that: the outer wall of the strip-shaped block (8) is fixedly connected with a square block (13), the second spring (9) is located at one end, close to the locking rod (6), of the transverse column (10), two ends of the second spring (9) are fixedly connected with the square block (13) and the inner wall of the transverse column (10) respectively, a square hole (11) far away from one end of the locking rod (6) is connected with a sleeve (14), and the strip-shaped block (8) is connected with the sleeve (14) in a sliding mode.

3. The bolt with the good locking effect according to claim 1 is characterized in that: the screw rod (1) is connected with an annular gasket (15), and the annular gasket (15) is located between the external thread (3) and the screw cap (2).

4. The bolt with the good locking effect according to claim 1 is characterized in that: and a sealing gasket (16) matched with the concave hole (4) is arranged at one end, far away from the first spring (5), of the locking rod (6).

5. The bolt with the good locking effect according to claim 1 is characterized in that: the end face, far away from the first spring (5), of the locking rod (6) is fixedly connected with a pull ring (17).

6. The bolt with the good locking effect according to claim 1 is characterized in that: and a chamfer is arranged at one end of the concave hole (4) far away from the first spring (5).

7. The bolt with the good locking effect according to claim 1 is characterized in that: and sealing agents are coated on the surfaces of the screw rod (1) and the screw cap (2).

8. The bolt with the good locking effect according to claim 1 is characterized in that: the screw cap (2) is connected with two support lugs (18).