CN212106464U - Connecting structure - Google Patents

Abstract

The utility model provides a connecting structure, including flange, D type axle, first D type packing ring, second D type packing ring, at least two butterfly washers, third D type packing ring and lock nut, wherein, be equipped with the recess on the lower surface of flange, set up the locating hole in the bottom of recess, the locating hole runs through the flange, the locating hole is used for cooperating with D type axle and uses; the connecting structure can be used as a hidden connecting structure or an open connecting structure, and all the parts are correspondingly assembled and installed according to different using modes. The connecting structure has the advantages of simple structure, complete functions, convenience in disassembly and assembly, high practicability and the like, can be used as a hidden connecting structure, and prevents the locking nut from being mistakenly bumped in the using process to influence the pretightening force of the locking nut; the connecting structure can also be used as an open connecting structure, and the pretightening force of the connecting structure can be conveniently adjusted at any time.

Description

Connecting structure

Technical Field

The utility model relates to a fixed part's technical field especially relates to a connection structure.

Background

When two parts need to be connected, a connecting structure is needed, and a more common connecting structure is a threaded connecting structure. However, in the prior art, the used threaded connection structure is either open, i.e. the pretightening force can be adjusted at any time; or hidden, can prevent that the lock nut from being touched by mistake in the use and influencing the pretightening force. In the prior art, when two identical components are connected, the used open type threaded connection structure and the used hidden type threaded connection structure are usually inconsistent in structure, or when the used connection structure is the same, when the connection mode (open type or hidden type) is changed, the structure of the two components needs to be changed, which causes many problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the application provides a connecting structure which can be used as a hidden connecting structure to prevent the influence on the pretightening force caused by mistaken bumping of a locking nut in the using process; the connecting structure can also be used as an open connecting structure, and the pretightening force of the connecting structure can be conveniently adjusted at any time.

In order to achieve the above purpose, the present application provides a connection structure, which includes a flange, a D-shaped shaft, a first D-shaped washer, a second D-shaped washer, at least two butterfly washers, a third D-shaped washer, and a lock nut, wherein a groove is formed on a lower surface of the flange, a positioning hole is formed at a bottom of the groove, the positioning hole penetrates through the flange, and the positioning hole is used in cooperation with the D-shaped shaft;

when the connecting structure is used as a hidden connecting structure, a first D-shaped gasket, a driven part, a second D-shaped gasket, butterfly gaskets and a third D-shaped gasket are sequentially arranged on the D-shaped shaft, the third D-shaped gasket is close to the threaded end of the D-shaped shaft and is in contact with the upper surface of the flange, the threaded end of the D-shaped shaft penetrates through the positioning hole in the flange from top to bottom, the threaded end is located in the groove in the flange, the locking nut is matched with the threaded end of the D-shaped shaft for use, and the driving part is assembled on the flange;

when the connecting structure is used as an open type connecting structure, the threaded end of the D-shaped shaft penetrates through the positioning hole in the flange from bottom to top, the other end of the D-shaped shaft is clamped in the groove in the flange, the driving part is assembled on the flange, a first D-shaped gasket, a driven part, a second D-shaped gasket, each butterfly gasket and a third D-shaped gasket are sequentially arranged on the D-shaped shaft, the first D-shaped gasket is close to the threaded end of the D-shaped shaft, the third D-shaped gasket is in contact with the upper surface of the flange, and the locking nut is matched with the threaded end of the D-shaped shaft for use.

In some embodiments, when the connection is used as an open connection, the lock nut is replaced with an internally threaded handle.

The scheme has the advantages that the connecting structure has the advantages of simple structure, complete functions, convenience in disassembly and assembly, high practicability and the like, can be used as a hidden connecting structure, and prevents the pretightening force of the locking nut from being influenced by mistaken bumping in the using process; the connecting structure can also be used as an open connecting structure, and the pretightening force of the connecting structure can be conveniently adjusted at any time. The connecting structure can enable a user to change the using mode of the connecting structure according to the using requirement, and the damping effect can protect the safety of equipment and personnel.

Drawings

Fig. 1 shows a schematic structural view of the connection structure in the embodiment when used as a hidden type.

Fig. 2 shows a schematic view of the partial cross-sectional structure of fig. 1.

Fig. 3 shows a schematic structural view of the connection structure in the embodiment when used as an open type.

Fig. 4 shows a schematic partial cross-sectional structure of fig. 3.

Fig. 5(a) shows a structural view of one angle of the flange in the embodiment, and (b) shows a structural view of another angle of the flange in the embodiment.

Fig. 6 shows a schematic structural view of a D-shaped shaft in the embodiment.

Reference numerals: the locking device comprises a flange 1, a 2-D-shaped shaft, a first D-shaped gasket 3, a second D-shaped gasket 4, a first butterfly gasket 5, a second butterfly gasket 6, a third butterfly gasket 7, a fourth butterfly gasket 8, a third D-shaped gasket 9, a locking nut 10, a groove 11, a handle with internal threads 12 and a positioning hole 13.

Detailed Description

The following further describes embodiments of the present application with reference to the drawings.

As shown in fig. 1 to 6, the connection structure according to the present application includes a flange 1, a D-shaped shaft 2, a first D-shaped washer 3, a second D-shaped washer 4, at least two butterfly washers, a third D-shaped washer 9, and a lock nut 10, wherein a groove 11 is provided on a lower surface of the flange 1, a positioning hole 13 is provided at a bottom of the groove 11, the positioning hole 13 penetrates through the flange 1, and the positioning hole 13 is used for being matched with the D-shaped shaft 2. In this embodiment, four butterfly washers are included, which are respectively referred to as a first butterfly washer 5, a second butterfly washer 6, a third butterfly washer 7, and a fourth butterfly washer 8, and several butterfly washers are specifically used, which may be determined according to specific requirements.

When the connecting structure is used as a hidden connecting structure, a first D-shaped gasket 3, a driven piece, a second D-shaped gasket 4, a first butterfly gasket 5, a second butterfly gasket 6, a third butterfly gasket 7, a fourth butterfly gasket 8 and a third D-shaped gasket 9 are sequentially arranged on a D-shaped shaft 2, the third D-shaped gasket 9 is close to a threaded end of the D-shaped shaft 2, the third D-shaped gasket 9 is in contact with the upper surface of the flange 1, the threaded end of the D-shaped shaft 2 penetrates through a positioning hole 13 in the flange 1 from top to bottom, the threaded end is located in a groove 11 in the flange 1, a locking nut 10 is matched with the threaded end of the D-shaped shaft 2 for use, and a driving piece is assembled on the flange 1, so that the driving piece and the driven piece are connected together.

The first butterfly washer 5, the second butterfly washer 6, the third butterfly washer 7 and the fourth butterfly washer 8 are pressed tightly by pre-adjusting the screwing degree of the locking nut 10, so that pre-tightening force is applied to two sides of the driven piece, and the anti-loosening effect is achieved. When the driven member rotates, the D-shaped shaft 2 cannot rotate along with the driven member, so that the locking nut can be prevented from loosening due to rotation of the driven member, and the pre-applied pretightening force can be kept. When the connecting structure is used as a hidden connecting structure, the pre-tightening force of the connecting structure can be prevented from being influenced by mistakenly bumping the locking nut in the using process.

When the connecting structure is used as an open type connecting structure, the threaded end of the D-shaped shaft 2 penetrates through the positioning hole 13 in the flange 1 from bottom to top, the other end of the D-shaped shaft 2 is clamped in the groove 11 in the flange 1, the driving part is assembled on the flange 1, the D-shaped shaft 2 is sequentially provided with the first D-shaped gasket 3, the driven part, the second D-shaped gasket 4, the first butterfly-shaped gasket 5, the second butterfly-shaped gasket 6, the third butterfly-shaped gasket 7, the fourth butterfly-shaped gasket 8 and the third D-shaped gasket 9, the first D-shaped gasket 3 is close to the threaded end of the D-shaped shaft 2, the third D-shaped gasket 9 is in contact with the upper surface of the flange 1, and the locking nut 10 is matched with the threaded end of the D-shaped shaft 2 for use, so that the driving part and the driven part are connected together.

By adjusting the screwing degree of the locking nut 10, the pressing degrees of the first butterfly washer 5, the second butterfly washer 6, the third butterfly washer 7 and the fourth butterfly washer 8 can be adjusted at any time, so that the pre-tightening force of two sides of the driven piece can be adjusted. To facilitate adjustment of the tightening of the lock nut, the lock nut may be replaced by an internally threaded handle 12. When the driven piece rotates, the D-shaped shaft 2 cannot rotate along with the driven piece, so that the handle with the internal thread can be prevented from loosening due to the rotation of the driven piece, and the pre-applied pretightening force can be kept. When the connecting structure is used as an open connecting structure, the pretightening force of the connecting structure can be conveniently adjusted at any time.

The connecting structure has the advantages of simple structure, complete functions, convenience in disassembly and assembly, high practicability and the like, can be used as a hidden connecting structure, and prevents the pretightening force of the locking nut from being influenced by mistaken bumping in the using process; the connecting structure can also be used as an open connecting structure, and the pretightening force of the connecting structure can be conveniently adjusted at any time. The connecting structure can enable a user to change the using mode of the connecting structure according to the using requirement, and the damping effect can protect the safety of equipment and personnel.

Claims (2)

1. A connecting structure characterized in that: the flange comprises a flange, a D-shaped shaft, a first D-shaped gasket, a second D-shaped gasket, at least two butterfly gaskets, a third D-shaped gasket and a locking nut, wherein a groove is formed in the lower surface of the flange, a positioning hole is formed in the bottom of the groove and penetrates through the flange, and the positioning hole is used for being matched with the D-shaped shaft;

when the connecting structure is used as a hidden connecting structure, a first D-shaped gasket, a driven part, a second D-shaped gasket, butterfly gaskets and a third D-shaped gasket are sequentially arranged on the D-shaped shaft, the third D-shaped gasket is close to the threaded end of the D-shaped shaft and is in contact with the upper surface of the flange, the threaded end of the D-shaped shaft penetrates through the positioning hole in the flange from top to bottom, the threaded end is located in the groove in the flange, the locking nut is matched with the threaded end of the D-shaped shaft for use, and the driving part is assembled on the flange;

when the connecting structure is used as an open type connecting structure, the threaded end of the D-shaped shaft penetrates through the positioning hole in the flange from bottom to top, the other end of the D-shaped shaft is clamped in the groove in the flange, the driving part is assembled on the flange, a first D-shaped gasket, a driven part, a second D-shaped gasket, each butterfly gasket and a third D-shaped gasket are sequentially arranged on the D-shaped shaft, the first D-shaped gasket is close to the threaded end of the D-shaped shaft, the third D-shaped gasket is in contact with the upper surface of the flange, and the locking nut is matched with the threaded end of the D-shaped shaft for use.

2. The connection structure according to claim 1, wherein: when the connection is used as an open connection, the lock nut is replaced with a handle with internal threads.

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