CN216241768U

CN216241768U - Internal and external thread nut with locking retarding structure

Info

Publication number: CN216241768U
Application number: CN202122826546.0U
Authority: CN
Inventors: 严科
Original assignee: Changzhou Jiuhe Fastener Manufacturing Co ltd
Current assignee: Changzhou Jiuhe Fastener Manufacturing Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-08
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses an internal and external thread nut with a locking retarding structure, which comprises: the locking device comprises a nut rod and a nut cap, a through inner hole is formed between the nut rod and the nut cap, the inner hole at the bottom of the nut rod is closed, the inner hole is collinear with the central lines of the nut rod and the nut cap, an external thread is arranged on the outer surface of the nut rod, an internal thread is arranged on the wall of the inner hole of the nut rod, the direction of the internal thread is opposite to that of the external thread, and a locking retarding structure is arranged on one side, facing the nut rod, of the nut cap. Through the mode, the bolt can effectively prevent the inner and outer tooth nuts from being loosened under stress after being installed, and the stability of bolt connection is improved.

Description

Internal and external thread nut with locking retarding structure

Technical Field

The utility model relates to the field of bolt connecting pieces, in particular to an internal and external thread nut with a locking retarding structure.

Background

Traditional connection between the anchor clamps material uses self tapping type screw usually, but the material structure of screw connection position can be destroyed when using self tapping type screw to connect, connecting hole atress easily warp leads to corresponding position life-span to reach the expectation when leading to long-term the use, in order to solve above-mentioned problem, the mode commonly used at present is pre-buried inside and outside tooth nut, utilize inside and outside tooth nut to improve holistic frictional force, buffering bolted connection is to the destruction of surrounding structure, but current inside and outside tooth nut is not stable enough sometimes after pre-buried installation, can the atress pine even, lead to the linkage effect not to reach the technological requirement.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a nut with internal and external teeth, which can prevent the nut from loosening.

In order to solve the technical problems, the utility model adopts a technical scheme that: providing an inner and outer threaded nut with a locking retarding structure, the inner and outer threaded nut with a locking structure comprising: the locking device comprises a nut rod and a nut cap, a through inner hole is formed between the nut rod and the nut cap, the inner hole at the bottom of the nut rod is closed, the inner hole is collinear with the central lines of the nut rod and the nut cap, an external thread is arranged on the outer surface of the nut rod, an internal thread is arranged on the wall of the inner hole of the nut rod, the direction of the internal thread is opposite to that of the external thread, and a locking retarding structure is arranged on one side, facing the nut rod, of the nut cap.

In a preferred embodiment of the utility model, the locking retarding structure comprises a locking nail seat arranged on the nut cap and a locking nail arranged in the locking nail seat, the cross section of the locking nail is in a T shape and comprises a nail cap, a nail rod and a nail tip, a hollow hole matched with the nail rod in shape is arranged at the bottom of the locking nail seat, and an elastic gasket is arranged between the top of the locking nail seat and the nail cap.

In a preferred embodiment of the utility model, the nail rod is flat, the nail tip and the nail rod are integrally formed, and the cross section of the nail tip is in a shape of a non-isosceles right triangle.

In a preferred embodiment of the utility model, the locking pin is arranged along the rotation direction of the external thread, and the smaller base angle of the non-isosceles right triangle is in front.

In a preferred embodiment of the utility model, the nut cap is a hexagonal nut cap, and one locking nail seat is arranged on each side surface of the hexagonal nut cap.

In a preferred embodiment of the present invention, a buffer head is disposed at the bottom of the nut stem, and the chamfer angle of the buffer head is 120-150 °.

The utility model has the beneficial effects that: according to the technical scheme, the locking nail mounting position is arranged in the nut cap, when the inner and outer threaded nuts are embedded, the nail head of the locking nail can be clamped between the nut cap and the material surface, the inner and outer threaded nuts are effectively prevented from loosening, and the bolt connection stability is improved.

Drawings

FIG. 1 is a front view of a preferred embodiment of the present invention;

FIG. 2 is a schematic sectional view of the structure of the section A-A of the embodiment;

FIG. 3 is a schematic side view of the embodiment of the locking pin;

the parts in the drawings are numbered as follows:

1. the nut comprises a nut cap, 2 nut rods, 3 buffer heads, 4 inner holes, 5 locking nail seats, 6 locking nails and 7 rubber gaskets.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to fig. 1 to 3, an embodiment of the present invention includes:

an inner and outer threaded nut with locking retarding structure, the inner and outer threaded nut with locking structure comprising: nut pole 2 and nut cap 1, set up the hole 4 that link up between nut pole 2 and the nut cap 1, the hole 4 of nut pole 2 bottom is sealed, the central line collineation of hole 4 and nut pole 2 and nut cap 1, the 2 surface of nut pole sets up the external screw thread, set up the internal thread on the wall of the hole 4 of nut pole 2, the direction of internal thread and external screw thread is opposite, 2 bottoms of nut pole set up the buffer head 3 that the chamfer is 150. The nut cap 1 is a hexagonal nut cap, a locking nail seat 5 is arranged on each side surface of the hexagonal nut cap, and the locking nail seat 5, a locking nail 6 and a rubber gasket 7 which are arranged in the locking nail seat 5 form a locking nail blocking structure of the inner and outer thread nuts. The cross section of the locking nail 6 is T-shaped and comprises a nail cap 601, a nail rod 602 and a nail tip 603, the nail rod 602 is flat, the nail tip 603 and the nail rod 602 are integrally formed, the section of the nail tip 603 is in the shape of a right-angled triangle, one bottom angle of the right-angled triangle is 30 degrees, one bottom angle of the right-angled triangle is 60 degrees, the locking nail 6 is arranged along the rotation direction of the external thread, the bottom angle of the 30 degrees is in the front, and the bottom angle of the 60 degrees is in the rear. The bottom of the nail locking seat 5 is provided with a hollow hole matched with the shape of the nail rod 602, and the rubber gasket 7 is arranged between the top of the nail locking seat 5 and the nail cap 601.

The working principle of the utility model is as follows:

presetting in furniture material during interior outer tooth nut, use hexagonal spanner rotating nut cap 1 can with interior outer tooth nut is fixed on the material surface, the in-process of screwing because the little base angle of nail point 603 is preceding, and rubber gasket 7's elasticity is better, the whole shrink to the lock pin seat 5 of easy atress of lock pin 6, after screwing, lock pin 6 will pop out the most advanced downwardly supporting face of right angle under rubber gasket 7's the continuous effect, improve retarding force, prevent that the nut from taking off because the uneven pine of atress after the bolted connection, and rubber gasket still has certain cushioning effect, stability after the improvement nut atress. When the furniture is damaged, the inner and outer tooth nuts can be recycled by increasing the stress or directly removing the rubber gasket.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An inner and outer nut with a locking retarding structure, the inner and outer nut with a locking structure comprising: the locking device comprises a nut rod and a nut cap, a through inner hole is formed between the nut rod and the nut cap, the inner hole at the bottom of the nut rod is closed, the inner hole is collinear with the central lines of the nut rod and the nut cap, an external thread is arranged on the outer surface of the nut rod, an internal thread is arranged on the wall of the inner hole of the nut rod, the direction of the internal thread is opposite to that of the external thread, and a locking retarding structure is arranged on one side, facing the nut rod, of the nut cap.

2. The inner and outer teeth nut with the locking retarding structure as claimed in claim 1, wherein the locking retarding structure comprises a locking nail seat arranged on a nut cap and a locking nail installed in the locking nail seat, the locking nail has a T-shaped cross section and comprises a nail cap, a nail rod and a nail tip, a hollow hole matched with the nail rod in shape is formed in the bottom of the locking nail seat, and an elastic gasket is arranged between the top of the locking nail seat and the nail cap.

3. The internal and external thread nut with lock retarding features as claimed in claim 2, wherein said shank is flat, said point is integrally formed with said shank, and said point has a cross-sectional shape that is not an isosceles right triangle.

4. The internal and external thread nut with lock retarding features of claim 3 wherein said pins are oriented in the direction of rotation of the external thread with the smaller base angle of said non-isosceles right triangle leading.

5. The internal and external thread nut with lock-up retarding feature of claim 2, wherein said nut cap is a hexagonal nut cap with one locking pin seat disposed on each side of said hexagonal nut cap.

6. The internal and external thread nut with the locking retarding structure as claimed in claim 1, wherein a buffering head is provided at the bottom of the nut stem, and the chamfering angle of the buffering head is 120-150 °.