CN218377250U

CN218377250U - Anti-drop bolt assembly

Info

Publication number: CN218377250U
Application number: CN202220997159.5U
Authority: CN
Inventors: 申发田; 张中奇
Original assignee: Xinxing Ductile Iron Pipes Co Ltd
Current assignee: Xinxing Ductile Iron Pipes Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2023-01-24
Anticipated expiration: 2032-04-27

Abstract

The utility model provides an anti-drop bolt assembly, which belongs to the technical field of bolts and comprises a screw rod, a nut and a locking piece, wherein the outer side of the screw rod is uniformly distributed with threads, the screw rod is uniformly provided with a plurality of through holes, and the axial direction of the through holes is vertical to the axial direction of the screw rod; the number of the nuts is at least two, the nuts are in threaded connection with the screw, the nuts are provided with limiting holes which are perpendicular to the axis of the nuts and penetrate through the nuts, and the limiting holes and the through holes are coaxially arranged; the outer diameter of the locking piece is smaller than the inner diameter of the through hole and smaller than the inner diameter of the limiting hole; the retaining member runs through-hole and spacing hole in proper order or retaining member runs through-hole and butt in the outside of nut for fix the nut on the screw rod. The utility model provides an anti-drop bolt assembly, through setting up the double-threaded screw and two nuts of threaded connection on the screw rod, has realized the change of nut position; and through trompil on screw rod and nut to and fix the nut with the help of the retaining member, realized the anticreep of nut.

Description

Anti-drop bolt assembly

Technical Field

The utility model belongs to the technical field of the bolt, more specifically say, relate to an anticreep bolt assembly.

Background

When devices or components such as motors and the like which are easy to vibrate need to be installed and fixed, a bolt is often adopted as an installation mechanism, and especially when the devices or the components are connected with a plate, a nut used for fixing is often required to be screwed on the bolt. However, as the device or the component can vibrate during operation, the nut loosens or falls off under the long-time stress state, so that the connection and fixation are failed; in addition, the nuts of the bolts of the ship body are fixed and unchangeable, and the length of the bolts cannot be adjusted according to actual conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anticreep bolt assembly, the nut that aims at solving current bolt assembly easily relaxes and the difficult problem of adjusting of bolt length.

In order to achieve the above object, the utility model adopts the following technical scheme: provided is a drop-off prevention bolt assembly including:

the screw rod is provided with threads uniformly distributed on the outer side, a plurality of through holes are uniformly formed in the screw rod, and the axial direction of each through hole is perpendicular to the axial direction of the screw rod;

the number of the nuts is at least two, the nuts are in threaded connection with the screw, limiting holes perpendicular to the axis of the nuts and penetrating through the nuts are formed in the nuts, and the limiting holes and the through holes are coaxially arranged;

the outer diameter of the locking piece is smaller than the inner diameter of the through hole and smaller than the inner diameter of the limiting hole;

the retaining member runs through in proper order the through-hole with spacing hole or the retaining member runs through-hole and butt are in the outside of nut is used for with the nut is fixed on the screw rod.

As another embodiment of this application, the through-hole includes first through-hole and the second through-hole that becomes the contained angle setting, first through-hole with the setting of second through-hole Kong Jiaoti.

As another embodiment of the present application, the first through hole and the second through hole are vertically disposed.

As another embodiment of the present application, the first through hole and the second through hole have the same inner diameter.

As another embodiment of the present application, an inner diameter of the limiting hole is greater than or equal to an inner diameter of the through hole.

As another embodiment of this application, spacing hole is including being the first spacing hole and the spacing hole of second that the contained angle set up, first spacing hole with the internal diameter in the spacing hole of second is unanimous.

As another embodiment of the application, an included angle between the axial direction of the first limiting hole and the axial direction of the second limiting hole is an acute angle.

As another embodiment of the present application, the retaining member is a bayonet.

The utility model provides an anticreep bolt assembly's beneficial effect lies in: compared with the prior art, the anti-drop bolt assembly of the utility model firstly connects the first nut on the bolt in a screwing way, and determines the position of the first nut on the screw rod, so that the limit hole of the first nut corresponds to a certain through hole on the screw rod, and the locking piece penetrates through the limit hole and the through hole, so that the first nut and the bolt are locked to be used as a nut; run through required fixed device or part with the screw rod, then begin to screw up second nut, treat second nut rigidity back, run through the spacing hole on the second nut and the through-hole on the screw rod that corresponds with the retaining member, or pass the through-hole in the second nut outside with the retaining member, make the retaining member support on the lateral wall of second nut, realize spacing to the nut, prevent that the nut from droing on the screw rod. The utility model provides an anti-drop bolt assembly, through setting up the double-threaded screw and two nuts of threaded connection on the screw rod, has realized the change of nut position; and through trompil on screw rod and nut to and fix the nut with the help of the retaining member, realized the anticreep of nut.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a front view of an anti-slip bolt assembly provided in an embodiment of the present invention;

fig. 2 is a cross-sectional view of the anti-drop bolt assembly provided by the embodiment of the utility model.

In the figure: 10. a screw; 11. a first through hole; 12. a second through hole; 20. a nut; 21. a limiting hole; 30. And a locking member.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the anti-loosening bolt assembly of the present invention will now be described. The anti-falling bolt assembly comprises a screw rod 10, a nut 20 and a locking piece 30, wherein threads are uniformly distributed on the outer side of the screw rod 10, a plurality of through holes are uniformly formed in the screw rod 10, and the axial direction of each through hole is perpendicular to the axial direction of the screw rod 10; the number of the nuts 20 is at least two, the nuts 20 are in threaded connection with the screw 10, the nuts 20 are provided with limiting holes 21 which are perpendicular to the axis of the nuts and penetrate through the nuts, and the limiting holes 21 and the through holes are coaxially arranged; the outer diameter of the locking member 30 is smaller than the inner diameter of the through hole and smaller than the inner diameter of the limiting hole 21; the locking member 30 penetrates through the through hole and the limiting hole 21 in sequence or the locking member 30 penetrates through the through hole and abuts against the outer side of the nut 20, and is used for fixing the nut 20 on the screw 10.

Compared with the prior art, the anti-drop bolt component provided by the utility model has the advantages that firstly, the first nut 20 is screwed on the bolt, the position of the first nut on the screw rod 10 is determined, the limiting hole 21 of the first nut 20 corresponds to a through hole on the screw rod 10, the locking piece 30 penetrates through the limiting hole 21 and the through hole, and the first nut 20 and the bolt are locked to be used as a nut; the screw 10 penetrates through a device or a part needing to be fixed, then the second nut 20 is screwed, after the second nut 20 is fixed, the locking piece 30 penetrates through the limiting hole 21 on the second nut 20 and the corresponding through hole on the screw 10, or the locking piece 30 penetrates through the through hole on the outer side of the second nut 20, so that the locking piece 30 is abutted against the outer side wall of the second nut 20, the nut 20 is limited, and the nut 20 is prevented from falling off from the screw 10.

The utility model provides an anti-drop bolt assembly, through setting up the double threaded screw 10 and two nuts 20 of threaded connection on the screw 10, have realized the change of nut position; the nut 20 is prevented from falling off by making holes in the screw 10 and the nut 20 and fixing the nut 20 by the locking member 30.

In some possible embodiments, referring to fig. 1, the through holes include a first through hole 11 and a second through hole 12 arranged at an included angle, and the first through hole 11 and the second through hole 12 are alternately arranged.

The axis direction of the first through hole 11 and the axis direction of the second through hole 12 form an included angle, the first through hole 11 and the second through hole 12 are alternately arranged on the screw rod 10, and the limiting hole 21 on the nut 20 is coaxial with the first through hole 11 or the second through hole 12, so that the nut 20 is conveniently positioned.

The included angle between the axial direction of the first through hole 11 and the axial direction of the second through hole 12 is an acute angle.

Optionally, the included angle between the axes of the first through hole 11 and the second through hole 12 is 45 degrees.

In some possible embodiments, referring to fig. 1, in order to facilitate the fixing of the nut 20, the first through holes 11 and the second through holes 12 formed in the screw 10 are perpendicular, and the first through holes 11 and the second through holes 12 formed in the screw 10 are alternately arranged at intervals, so that the limiting holes 21 formed in the nut 20 correspond to the through holes formed in the screw 10, and the nut 20 is conveniently fixed.

Optionally, the inner diameters of the first through hole 11 and the second through hole 12 are the same, and the distance between the first through hole 11 and the second through hole 12 is larger than the inner diameter of the first through hole 11.

In some possible embodiments, referring to FIG. 2, the inner diameter of the retaining aperture 21 is greater than or equal to the inner diameter of the through-hole to facilitate insertion of the retaining member 30.

When the internal diameter of spacing hole 21 and through-hole is unanimous, the external diameter of retaining member 30 is unanimous with the internal diameter of spacing hole 21, and retaining member 30 runs through spacing hole 21 and through-hole, and the laminating of the lateral wall of retaining member 30 is on the inside wall of spacing hole 21 and through-hole.

Optionally, the limiting hole 21 includes a first limiting hole 21 and a second limiting hole 21 arranged at an included angle, and the inner diameters of the first limiting hole 21 and the second limiting hole 21 are the same. When the nut 20 is installed, the first limiting hole 21 or the second limiting hole 21 of the nut 20 is coaxial with the through hole on the screw 10.

The first limiting hole 21 and the second limiting hole 21 are arranged at an included angle, so that the limiting hole 21 on the nut 20 corresponds to the through hole on the screw 10, and the nut 20 is convenient to mount.

Optionally, an included angle between the axial direction of the first limiting hole 21 and the axial direction of the second limiting hole 21 is an acute angle. The nut 20 is a hexagon nut 20, and the hexagon nut 20 is provided with a first limiting hole 21 and a second limiting hole 21, wherein the axis of the first limiting hole 21 is perpendicular to two opposite surfaces of the hexagon nut 20, and the axis of the second limiting hole 21 is perpendicular to the other two opposite surfaces of the hexagon nut 20.

In some possible embodiments, referring to FIG. 1, retaining member 30 is a bayonet. The bayonet lock can adopt a metal bolt or a wire clip or a B-shaped spring pin or a wave pin clip and the like.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Anticreep bolt assembly, its characterized in that includes:

the screw rod (10) is provided with threads uniformly distributed on the outer side of the screw rod (10), the screw rod (10) is provided with a plurality of through holes uniformly, and the axial direction of each through hole is perpendicular to the axial direction of the screw rod (10);

the number of the nuts (20) is at least two, the nuts (20) are in threaded connection with the screw (10), a limiting hole (21) which is perpendicular to the axis of the nut and penetrates through the nut is formed in the nut (20), and the limiting hole (21) and the through hole are coaxially arranged;

the outer diameter of the locking piece (30) is smaller than the inner diameter of the through hole and smaller than the inner diameter of the limiting hole (21);

the locking part (30) penetrates through the through hole and the limiting hole (21) in sequence or the locking part (30) penetrates through the through hole and abuts against the outer side of the nut (20) and is used for fixing the nut (20) on the screw (10);

the through holes comprise a first through hole (11) and a second through hole (12) which are arranged at an included angle, and the first through hole (11) and the second through hole (12) are alternately arranged.

2. The anti-drop bolt assembly according to claim 1, characterized in that the first through hole (11) and the second through hole (12) are vertically arranged.

3. The anti-drop bolt assembly according to claim 1, characterized in that the first through hole (11) and the second through hole (12) have the same inner diameter.

4. The anti-drop bolt assembly according to claim 1, characterized in that the inner diameter of the limiting hole (21) is greater than or equal to the inner diameter of the through hole.

5. The anti-drop bolt assembly according to claim 4, characterized in that the limiting holes (21) comprise a first limiting hole (21) and a second limiting hole (21) which are arranged at an included angle, and the inner diameters of the first limiting hole (21) and the second limiting hole (21) are consistent.

6. The anti-drop bolt assembly according to claim 5, characterized in that the included angle between the axial direction of the first limiting hole (21) and the axial direction of the second limiting hole (21) is an acute angle.

7. The anti-drop bolt assembly according to claim 1, wherein the locking member (30) is a bayonet lock.