CN215058752U

CN215058752U - Long-life torsional shear type fastener

Info

Publication number: CN215058752U
Application number: CN202120066465.2U
Authority: CN
Inventors: 李冬燕
Original assignee: Zhejiang Fuerjia Machinery Co ltd
Current assignee: Zhejiang Fuerjia Machinery Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-12-07
Anticipated expiration: 2031-01-11

Abstract

The utility model provides a long-life torsional shear type fastener, the shell that has the external screw thread on the lateral wall, the mounting groove has been seted up on the top surface of shell, set up a plurality ofly on the lateral wall of shell and the slide opening that just is located the external screw thread top with the mounting groove intercommunication, it is provided with the traveller that is used for outside stretching out all to slide in every slide opening, the center department of mounting groove rotates and is provided with the center pin, the top of center pin is provided with the bolt head that is located the shell top, be provided with between center pin and the traveller and be used for along with the rotation of center pin and then drive the connecting rod that the traveller slided in the slide opening, be provided with on the center pin and restrict center pin pivoted positioning mechanism when the traveller stretches out in the slide opening. This long-life torsional shear type fastener has adopted the shell that has the hasp structure, and it has solved among the prior art easy technical problem who takes off the steal of fastener, has produced the technological effect that has the theftproof performance.

Description

Long-life torsional shear type fastener

Technical Field

The utility model relates to a fastener technical field especially relates to a type fastener is cut to long-life turn round.

Background

The fastener is a type of mechanical part with extremely wide application, and is mainly used for fastening connection. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, dies, hydraulic pressure and the like, can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and is a mechanical basic part which is most widely applied.

The utility model provides a turn round and cut type fastening bolt, it belongs to one of them type of fastener, including bolt, nut, packing ring, the user twists the nut through the spanner, and then links together two article, though this turn round and cut type fastening bolt can be used for connecting two article, but other people also can take off this turn round and cut type fastening bolt through the spanner to article split that will link together is stolen.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model provides a long-life type fastener of cutting is turned round, it has the theftproof function.

According to the utility model discloses an embodiment, a long-life torsional shear type fastener, the shell that has the external screw thread on the lateral wall, the mounting groove has been seted up on the top surface of shell, set up a plurality ofly on the lateral wall of shell and the mounting groove intercommunication just is located the slide opening of external screw thread top, every it is provided with the traveller that is used for outside stretching out all to slide in the slide opening, the center department of mounting groove rotates and is provided with the center pin, the top of center pin is provided with the bolt head that is located the shell top, be provided with between center pin and the traveller and be used for along with the rotation of center pin and then drive the connecting rod that the traveller slided in the slide opening, be provided with on the center pin and restrict center pin pivoted positioning mechanism when the traveller stretches out in the slide opening.

Preferably, the central shaft is coaxially provided with a turntable, each sliding column is provided with a hinge frame on the end surface facing the central shaft, one end of the connecting rod is hinged with the turntable, and the other end of the connecting rod is hinged with the hinge frame.

Preferably, two symmetrical connecting rods are arranged between the corresponding rotary disc and the corresponding hinge frame.

Preferably, set up on the lateral wall of shell with the mounting groove intercommunication and be located the card hole of slide opening top, positioning mechanism sets up the positioning disk in the mounting groove including sliding, set up on the lateral wall of positioning disk and be used for the recess that aligns with the card hole, be connected with the spring on the tank bottom of recess, the one end that the groove tank bottom was kept away from to the spring is provided with and is promoted and form joint complex fixture block with the card hole by the spring.

The technical principle of the utility model is that: when the long-life torsional shear type fastener is used for connecting the first part and the second part, the second part is provided with a connecting hole for the shell to pass through, and the hole wall of the connecting hole is provided with a jack for the sliding column to insert. And a worker penetrates the shell through the connecting holes of the first part and the second part until the bolt head abuts against the surface of the first part, and adjusts the sliding hole to be aligned with the jack, wherein when the sliding hole is adjusted to be aligned with the jack, the corresponding scribed lines on the first part and the bolt head are aligned. Then, the bolt head is screwed to drive the central shaft and the rotary table to rotate, the rotary table pushes the sliding columns to extend outwards through the connecting rods until the sliding columns are completely inserted into the insertion holes, meanwhile, the guide disc rotates along with the central shaft until the grooves are aligned with the clamping holes, the springs push the clamping blocks to be embedded into the clamping holes, the central shaft is limited to rotate, the sliding columns are kept in a state of being inserted into the insertion holes, and then the gaskets are sleeved on the sliding columns and the nuts are screwed to finish reinforcement. At the moment, the connection relation between the first part and the second part is difficult to release, and the long-life torsional shear type fastener has better anti-theft performance.

Compared with the prior art, the utility model discloses following beneficial effect has: this long-life torsional shear type fastener has adopted the shell that has the hasp structure, and it has solved among the prior art easy technical problem who takes off the steal of fastener, has produced the technological effect that has the theftproof performance.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a half-section of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of components in the housing according to an embodiment of the present invention.

In the above drawings: 1. a housing; 11. an external thread; 2. mounting grooves; 3. a slide hole; 4. a traveler; 41. a hinged frame; 5. a clamping hole; 6. a central shaft; 7. a bolt head; 8. a turntable; 9. a connecting rod; 10. a guide plate; 12. a groove; 13. a spring; 14. a clamping block; 15. a nut; 16. a gasket; 17. a first part; 18. a second part; 19. connecting holes; 20. and (4) inserting the jack.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1 and 2, the embodiment of the present invention provides a long-life torsional shear type fastener, which includes a housing 1, and an external thread 11 is provided on an outer side wall of the housing 1. The top surface of the shell 1 is provided with a mounting groove 2, and the mounting groove 2 is a circular groove. Four circular shape slide holes 3 have been seted up on the lateral wall of shell 1, and four slide holes 3 all are located the top of external screw thread 11, and four slide holes 3 are the equidistance circumference and distribute. All slide column 4 is provided with in every slide opening 3 in the slip, and slide column 4 is used for outwards stretching out slide opening 3, and the integral type is connected with articulated frame 41 on the terminal surface that slide column 4 is close to mounting groove 2, and articulated frame 41 is platelike. The circular shape card hole 5 has been seted up on the lateral wall of shell 1, and card hole 5 and mounting groove 2 intercommunication, card hole 5 are located one of them slide opening 3 directly over.

As shown in fig. 2 and 3, a central shaft 6 is rotatably disposed at the center of the mounting groove 2, the central shaft 6 is a circular shaft, and a bolt head 7 is integrally connected to the top of the central shaft 6. The central shaft 6 is coaxially connected with a rotary table 8, the section of the rotary table 8 is circular, and two connecting rods 9 are symmetrically arranged between the rotary table 8 and each hinged frame 41. Connecting rod 9 one end passes through the articulated shaft and forms articulated cooperation with carousel 8, and the other end passes through the articulated shaft and forms articulated cooperation with articulated frame 41, sets up two connecting rods 9 between carousel 8 and articulated frame 41, is favorable to promoting the connection stability between carousel 8 and the traveller 4.

As shown in fig. 2 and 3, the center shaft 6 is provided with a positioning mechanism for restricting the rotation of the center shaft 6. Positioning mechanism includes positioning disk 10, and positioning disk 10 is discoid, and positioning disk 10 links to each other with the coaxial fixed of center pin 6, and positioning disk 10 and mounting groove 2 sliding fit are favorable to promoting the stability that center pin 6 reciprocated. The side wall of the guide disc 10 is provided with a circular groove 12, and the groove 12 is used for aligning with the clamping hole 5. The spring 13 is fixedly connected to the bottom of the groove 12, the latch 14 is fixedly connected to one end, away from the bottom of the groove 12, of the spring 13, and when the groove 12 is aligned with the latch hole 5, the latch 14 is pushed by the spring 13 to be embedded into the latch hole 5.

As shown in fig. 1 and 2, a nut 15 is threadedly coupled to the external thread 11 of the housing 1, and the nut 15 is used to lock the two parts coupled. The housing 1 is provided with a washer 16, and the washer 16 is positioned on the side of the nut 15 adjacent to the bolt head 7.

The detailed working process of the embodiment is as follows:

as shown in fig. 2, when the long-life torsional shear type fastener is used for connecting a first part 17 and a second part 18, the second part 18 is provided with a connecting hole 19 for the housing 1 to pass through, and the hole wall of the connecting hole 19 is provided with an insertion hole 20 for the sliding column 4 to insert. The worker passes the shell 1 through the connecting holes 19 of the first part 17 and the second part 18 until the bolt head 7 abuts against the surface of the first part 17, and adjusts the sliding hole 3 to be aligned with the insertion hole 20, wherein when the sliding hole 3 is adjusted to be aligned with the insertion hole 20, the corresponding scribed lines on the first part 17 and the bolt head 7 are aligned. Then, the bolt head 7 is screwed to drive the central shaft 6 and the rotary disc 8 to rotate, the rotary disc 8 pushes the sliding column 4 to extend outwards through the connecting rod 9 until the sliding column 4 is completely inserted into the insertion hole 20, meanwhile, the guide disc 10 rotates along with the central shaft 6 until the groove 12 is aligned with the clamping hole 5, the spring 13 pushes the clamping block 14 to be embedded into the clamping hole 5, the central shaft 6 is limited to rotate, the sliding column 4 is kept in a state of being inserted into the insertion hole 20, and then the washer 16 is sleeved on and the nut 15 is screwed to finish the reinforcement. At this time, the connection between the first part 17 and the second part 18 is difficult to release, and the long-life torsional shear type fastener has good anti-theft performance.

This long-life torsional shear type fastener has adopted shell 1 with hasp structure, and it has solved among the prior art easy technical problem who takes off the steal of fastener, has produced the technological effect that has the theftproof performance.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a long-life torsional shear type fastener which characterized in that: comprises a shell (1) with an external thread (11) on the outer side wall, a mounting groove (2) is arranged on the top surface of the shell (1), a plurality of sliding holes (3) which are communicated with the mounting groove (2) and are positioned above the external thread (11) are arranged on the outer side wall of the shell (1), a sliding column (4) which is used for extending outwards is arranged in each sliding hole (3) in a sliding way, a central shaft (6) is rotatably arranged at the center of the mounting groove (2), a bolt head (7) positioned above the shell (1) is arranged at the top of the central shaft (6), a connecting rod (9) which is used for driving the sliding column (4) to slide in the sliding hole (3) along with the rotation of the central shaft (6) is arranged between the central shaft (6) and the sliding column (4), and a positioning mechanism for limiting the rotation of the central shaft (6) when the sliding column (4) extends out of the sliding hole (3) is arranged on the central shaft (6).

2. A long life twist-shear type fastener as claimed in claim 1, wherein: the central shaft (6) is coaxially provided with a turntable (8), each sliding column (4) is provided with a hinge frame (41) on the end face facing the central shaft (6), one end of the connecting rod (9) is hinged with the turntable (8), and the other end of the connecting rod is hinged with the hinge frame (41).

3. A long life torque-shear type fastener as defined in claim 2, wherein: two symmetrical connecting rods (9) are arranged between the corresponding rotary disc (8) and the hinge frame (41).

4. A long life twist-shear type fastener as claimed in claim 1, wherein: offer on the lateral wall of shell (1) and communicate with mounting groove (2) and be located card hole (5) of slide opening (3) top, positioning mechanism sets up deflector (10) in mounting groove (2) including sliding, offer on the lateral wall of deflector (10) and be used for recess (12) of lining up with card hole (5), be connected with spring (13) on the tank bottom of recess (12), the one end that recess (12) tank bottom was kept away from in spring (13) is provided with and is promoted and forms joint complex fixture block (14) with card hole (5) by spring (13).