CN219975095U - Wedge buckle anti-drop nut - Google Patents

Abstract

The utility model discloses a wedge buckle anti-drop nut which comprises a nut body, a wedge buckle ring groove, a tongue-shaped gasket, a limiting tongue piece, a positioning perforation and a threaded hole, wherein the top of the nut body is provided with an inwards concave wedge buckle ring groove, the inner side surface of the wedge buckle ring groove is in the shape of an arc with an gradually enlarged top opening, the upper side surface and the lower side surface of the wedge buckle ring groove are horizontal planes, the tongue-shaped gasket is arranged in the wedge buckle ring groove in a wedge buckle manner, the outer end of the tongue-shaped gasket is provided with the limiting tongue piece in an extending manner, the positioning perforation is arranged on the limiting tongue piece in a penetrating manner, and the threaded hole is axially arranged in the nut body in a penetrating manner. According to the nut, the concave wedge snap ring groove is designed at the top of the nut and matched with the tongue-shaped gasket extending from the outer end for limiting and mounting, so that the falling-off phenomenon caused by loosening of the nut can be effectively prevented, and the safety of nut connection is improved.

Description

Wedge buckle anti-drop nut

[ field of technology ]

The utility model relates to the technical field of nuts, in particular to the technical field of a wedge buckle anti-falling nut.

[ background Art ]

The automobile crane plays an important role in land construction of various projects in the offshore oil industry and bears accurate pairing work of pipelines and equipment. The integrity and reliability of the truck crane are critical in daily safety production, and not only relates to personnel safety, but also relates to safety of equipment and projects; if the crane hook has a safety risk, the hidden danger and the consequences caused by the hidden danger are not immeasurable unlike the situation that an 'irregular bomb' is buried in each operation process.

The existing nut for the crane hook is only locked by adopting a simple bolt and a simple gasket, when the hook is subjected to bearing rotation for many times, and the friction force is increased, the locking effect of the nut is reduced along with the migration of time, so that the connection is invalid, and the crane is hidden in safety.

In order to prevent the nut from loosening and falling, CN108119517A provides a loose-proof and anti-falling nut, which comprises a 30-degree wedge-shaped inclined plane, a nylon ring and a nut body, wherein the wedge-shaped inclined plane is arranged at the root of a tooth of an internal thread of the nut body, the nylon ring is embedded on a non-supporting surface of the nut body, the 30-degree wedge-shaped inclined plane is adopted by the internal thread of the nut body, and meanwhile, the nylon ring is embedded at the end of the non-supporting surface of the nut body, so that the defect that the 30-degree tooth-changing thread freely falls off due to the fact that the operation or the installation moment is not in place is overcome, and the loose-proof and anti-falling function of the nut is ensured.

The above CN108119517a solves the problem of loosening and dropping the nut, but has the following disadvantages:

the nylon ring is inlaid at the non-supporting surface end of the nut body, so that the actual anti-loosening and anti-disengaging functions of the nut are poor, and the nut still can loose due to continuous vibration in the actual use process.

[ utility model ]

The utility model aims to solve the problems in the prior art, and provides the wedge buckle anti-drop nut, which can be used for limiting and mounting by matching a concave wedge buckle groove arranged at the top of the nut with a tongue-shaped gasket extending from the outer end, so that the phenomenon of falling off caused by loosening of the nut can be effectively prevented, and the safety of nut connection is improved.

In order to achieve the above purpose, the utility model provides a wedge buckle anti-drop nut, which comprises a nut body, a wedge buckle ring groove, a tongue-shaped gasket, a limiting tongue piece, a positioning perforation and a threaded hole, wherein the top of the nut body is provided with an inwards concave wedge buckle ring groove, the inner side surface of the wedge buckle ring groove is in the shape of an arc with a gradually increased top opening, the upper side surface and the lower side surface of the wedge buckle ring groove are horizontal planes, the tongue-shaped gasket is installed in the wedge buckle ring groove in a wedge buckle manner, the outer end of the tongue-shaped gasket is extended and provided with the limiting tongue piece, the positioning perforation is penetrated and arranged on the limiting tongue piece, and the threaded hole is penetrated and arranged in the nut body in an axial direction.

Preferably, an elastic pad is adhered to the bottom of the tongue-shaped pad.

Preferably, the elastic gasket is a silicon rubber gasket, and a plurality of anti-slip grooves are uniformly formed in the bottom surface of the elastic gasket.

Preferably, the top surface of the wedge ring groove is a horizontal plane, and the wedge ring groove and the nut body are of an integrated structure.

Preferably, the bottom end of the threaded hole is coaxially provided with a guide flaring, and the inner side surface of the guide flaring is in a smooth circular arc shape with a gradually contracted top opening.

Preferably, the upper side surface and the lower side surface of the tongue-shaped gasket are rough surfaces, and the length of the limiting tongue piece is larger than the radius of the nut body.

Preferably, the nut body is an outer hexagonal nut.

The utility model has the beneficial effects that: according to the nut, the nut body, the wedge snap ring groove, the tongue-shaped gasket, the limiting tongue piece, the positioning perforation and the threaded hole are combined together, through experimental optimization, limiting installation can be performed by matching the concave wedge snap ring groove designed at the top of the nut with the tongue-shaped gasket extending at the outer end, the falling-off phenomenon caused by loosening of the nut can be effectively prevented, and the safety of nut connection is improved.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a wedge buckle anti-drop nut according to the present utility model.

In the figure: the nut comprises a 1-nut body, a 2-wedge snap ring groove, a 3-tongue type gasket, a 4-limit tongue piece, a 5-locating perforation, a 6-threaded hole, a 7-elastic gasket, an 8-anti-slip groove and a 9-guide flaring.

[ detailed description ] of the utility model

Referring to fig. 1, the anti-drop nut for wedge buckle comprises a nut body 1, a wedge buckle ring groove 2, a tongue-shaped gasket 3, a limit tongue piece 4, a positioning perforation 5 and a threaded hole 6, wherein the top of the nut body 1 is provided with an inward concave wedge buckle ring groove 2, the inner side surface of the wedge buckle ring groove 2 is in the shape of an arc with gradually increased top opening, the upper side surface and the lower side surface of the wedge buckle ring groove 2 are horizontal planes, the tongue-shaped gasket 3 is installed in the wedge buckle ring groove 2 in a wedge buckle manner, the limit tongue piece 4 is extended at the outer end of the tongue-shaped gasket 3, the limit tongue piece 4 is penetrated with the positioning perforation 5, the threaded hole 6 is penetrated and arranged in the nut body 1 in the axial direction, the bottom adhesion of tongue type gasket 3 is provided with elastic gasket 7, elastic gasket 7 is the silicone rubber gasket, the bottom surface of elastic gasket 7 evenly is provided with a plurality of anti-skidding recesses 8, the top surface of wedge ring groove 2 is the horizontal plane, wedge ring groove 2 and nut body 1 are integrated into one piece structure, the bottom coaxial guide flaring 9 that is provided with of screw hole 6, the medial surface shape of guide flaring 9 is the smooth convex that the open-top contracts gradually, the upper and lower both sides face of tongue type gasket 3 is the roughness, the length of spacing tongue piece 4 is greater than the radius of nut body 1, nut body 1 is outer hexagon nut.

According to the nut, through combining the nut body 1, the wedge snap ring groove 2, the tongue-shaped gasket 3, the limiting tongue piece 4, the positioning perforation 5 and the threaded hole 6 together, through experimental optimization, the nut can be limited and installed by matching the concave wedge snap ring groove 2 designed at the top of the nut with the tongue-shaped gasket 3 extending at the outer end, the phenomenon of falling off caused by loosening of the nut can be effectively prevented, and the safety of nut connection is improved.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims (7)

1. The utility model provides a wedge knot anti falling nut which characterized in that: including nut body (1), wedge ring groove (2), tongue gasket (3), spacing tongue piece (4), location perforation (5) and screw hole (6), the top of nut body (1) is provided with concave wedge ring groove (2), the medial surface shape of wedge ring groove (2) is the convex of open-top growth gradually, both sides face is the horizontal plane about the inslot of wedge ring groove (2), wedge is detained in wedge ring groove (2) and is installed tongue gasket (3), the outer end extension of tongue gasket (3) is provided with spacing tongue piece (4), run through on spacing tongue piece (4) and be provided with location perforation (5), the inside axial of nut body (1) is run through and is provided with screw hole (6).

2. The wedge buckle anti-drop nut of claim 1, wherein: an elastic gasket (7) is adhered to the bottom of the tongue-shaped gasket (3).

3. A wedge button anti-drop nut as claimed in claim 2, wherein: the elastic gasket (7) is a silicon rubber gasket, and a plurality of anti-slip grooves (8) are uniformly formed in the bottom surface of the elastic gasket (7).

4. The wedge buckle anti-drop nut of claim 1, wherein: the top surface of the wedge ring groove (2) is a horizontal plane, and the wedge ring groove (2) and the nut body (1) are of an integrated structure.

5. The wedge buckle anti-drop nut of claim 1, wherein: the bottom end of the threaded hole (6) is coaxially provided with a guide flaring (9), and the shape of the inner side surface of the guide flaring (9) is a smooth circular arc with a gradually contracted top opening.

6. The wedge buckle anti-drop nut of claim 1, wherein: the upper side surface and the lower side surface of the tongue-shaped gasket (3) are rough surfaces, and the length of the limiting tongue piece (4) is larger than the radius of the nut body (1).

7. The wedge buckle anti-drop nut of claim 1, wherein: the nut body (1) is an outer hexagon nut.