CN211901247U

CN211901247U - Thread fit fastener

Info

Publication number: CN211901247U
Application number: CN202020487349.3U
Authority: CN
Inventors: 张子鹏; 刘永茂
Original assignee: Xiamen Liye Sanitary Ware Industry Co ltd
Current assignee: Xiamen Liye Sanitary Ware Industry Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-11-10
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses a screw-thread fit fastener belongs to threaded fastener technical field, including screw rod, nut, hooping spare, the screw rod is including the pole body that has the external screw thread and the nut that is used for revolving soon, the nut has and is used for pole body male internal screw, and outer toper inclined plane is personally submitted in the fastening of the inner of nut, and one section groove of cutting open of stepping down has been seted up to the lateral wall axial of the inner of nut, hooping spare is used for cup jointing the inner fastening face of nut, and when the inner fastening face of nut cramps the pressurized, the groove of cutting open of stepping down reduces for the inner of nut can produce elastic deformation. The utility model discloses the design of the fastening face of the inner of nut becomes the toper inclined plane, and one section abdication cut groove has been seted up to the lateral wall axial of the inner of nut for during the lower extreme of the pole body of screw rod can insert the screw of nut fast, during the nut of revolving, the clamping piece cup jointed in the fastening face of the inner of nut forms and carves the cooperation, and the inner of nut produces elastic deformation and reports tight pole body, reaches the purpose of fastening the article.

Description

Thread fit fastener

Technical Field

The utility model belongs to the technical field of the threaded fastener technique and specifically relates to a screw-thread fit fastener.

Background

In the prior art, there are many ways to fix two separate objects together, such as riveting, welding, screwing, etc., wherein the screwing is the simplest, fastest and most convenient fastening way, and the fastening member mainly using screwing is a bolt, including a screw rod and a nut, wherein the screw rod includes a rod body with threads and a nut for screwing, and the rod body is inserted into the screw hole of the nut for screwing for fastening the object. Therefore, people make a plurality of structural innovations in threaded connection, and particularly make innovations and improvements on various types of bolt structures mainly based on threaded connection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw-thread fit fastener, the bolt pole body of this fastener can inject the screw of nut fast in to as long as revolve twist the nut just can fasten the article fast.

To achieve the above object, the solution of the present invention is:

the utility model provides a screw-thread fit fastener, includes screw rod, nut, hooping spare, the screw rod is including the pole body that has the external screw thread and the nut that is used for revolving soon, the nut has and is used for pole body male internal screw thread screw, and outer toper inclined plane is personally submitted in the fastening of the inner of nut, and one section groove of cutting open of stepping down has been seted up to the lateral wall axial of the inner of nut, hooping spare is used for cup jointing the inner fastening face of nut, when the inner fastening face of nut cramps the pressurized, steps down the groove of cutting open and reduces for the inner of nut can produce elastic deformation.

The number of the abdicating grooves is at least one.

The side wall of the outer end of the nut is radially raised with a section of convex rib, and the convex rib is used as a nut handle.

The tightening piece is a tightening rubber sleeve ring, the upper end faces of the outer ring and the inner ring of the tightening rubber sleeve ring are both provided with conical inclined faces, the tightening rubber sleeve ring is sleeved on the side wall of the inner end of the nut, and the conical inclined faces of the upper end face of the inner ring of the tightening rubber sleeve ring are wedged with the conical inclined faces of the tightening face of the nut.

An axial convex block is arranged on the conical inclined plane of the upper end surface of the inner ring, and a groove matched with the convex block is correspondingly arranged on the conical inclined plane of the fastening surface of the nut.

The fastening rubber ferrule is a rubber piece.

The tightening piece is a tightening flat washer which is sleeved on the conical inclined surface of the tightening surface of the nut through the inner ring hole.

And when the nut is pressed and compressed by the elastic supporting piece, the inner ring hole of the fastening flat washer is just sleeved in the conical inclined plane of the fastening surface of the nut.

The inner end of the nut is radially provided with an annular groove, and the annular groove is positioned at the bottom of the abdicating sectioning groove.

The nut is a rubber part or a plastic part.

The hooping piece is a rubber piece or a plastic piece.

After the scheme is adopted, the utility model discloses a gain effect lies in: the fastening surface at the inner end of the nut is designed into a conical inclined surface, a section of abdicating cutting groove is axially formed in the side wall at the inner end of the nut, the inner end of the nut is opened due to the abdicating cutting groove, the lower end of the rod body of the screw rod can be quickly inserted into the screw hole of the nut, when the nut is screwed, the fastening surface sleeved at the inner end of the nut forms wedge-shaped fit, when the fastening surface at the inner end of the nut is tightened and pressed, the abdicating cutting groove is reduced, the inner end of the nut can generate elastic deformation, and when the nut is continuously screwed, the fastening surface sleeved at the inner end of the nut is wedged, the clamping and the tightening are tighter, so that the purpose of fastening and connecting two separated objects.

Drawings

FIG. 1 is an exploded perspective view of a thread fit fastener of the present invention having a fastening adhesive ferrule;

FIG. 2 is a half cross-sectional view of a thread fit fastener of the present invention having a fastening adhesive ferrule;

FIG. 3 is an assembled half-sectional view of a thread fit fastener of the present invention having a fastening adhesive ferrule;

FIG. 4 is an installation schematic view of a thread fit fastener of the present invention having a fastening adhesive ferrule;

FIG. 5 is a perspective view of a thread fit fastener of the present invention having a fastening flat washer;

FIG. 6 is a half cross-sectional view of a thread fit fastener of the present invention having a fastening flat washer;

FIG. 7 is an assembled half-sectional view of a thread fit fastener of the present invention having a fastening flat washer;

fig. 8 is an installation schematic of a thread-fitting fastener of the present invention with a fastening flat washer.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-8, the utility model provides a screw-thread fit fastener, including screw rod 1, nut 2, hoop spare, screw rod 1 is plastic part or metalwork, and nut 2 is rubber part or plastic part, and hoop spare is rubber part or plastic part.

The screw rod 1 comprises a rod body 11 with an external thread and a screw cap 12 for screwing, the screw cap 2 is provided with a screw hole 21 for inserting the rod body 11 into the internal thread, a fastening surface 22 of an inner end 23 of the screw cap 2 is a conical inclined surface, and a section of abdicating groove 25 is axially formed in the side wall of the inner end 23 of the screw cap 2.

The tightening piece is used for sleeving a fastening surface 22 of an inner end 23 of the nut 2, when the fastening surface 22 of the inner end 23 of the nut 2 is tightened and pressed, the abdicating sectional groove 25 is reduced, so that the inner end 23 of the nut 2 can generate elastic deformation, and 4 abdicating sectional grooves 25 are axially formed in the inner end 23 of the nut 2 in the screw hole 21 of the internal thread, which can enable the rod body 11 to be inserted into the screw hole more quickly.

As shown in fig. 1 to 4, the tightening member is a fastening rubber sleeve 3, and is used for increasing the holding force of the inner end 23 of the nut 2 to the shaft 11 of the screw 1, which is weakened by forming an abdicating slot 25 in the axial direction, the upper end surface 31 of the outer ring of the fastening rubber sleeve 3 is provided with a tapered inclined surface, the upper end surface 32 of the inner ring of the fastening rubber sleeve 3 is also provided with a tapered inclined surface, the fastening rubber sleeve 3 is sleeved on the inner end 23 of the nut 2, the tapered inclined surface of the upper end surface 32 of the inner ring of the fastening rubber sleeve 3 is wedged with the tapered inclined surface of the fastening surface 22 of the nut 2, the tapered inclined surface of the upper end surface 32 of the inner ring is provided with an axial protrusion 33, and the tapered inclined surface of the fastening surface 22 of the nut 2 is correspondingly provided with a groove 24 matched with the protrusion 33, so as to prevent the nut 2 from slipping in the fastening rubber sleeve 3 when.

As shown in fig. 1-4, a screw-fit fastener is used for fixing two

separated objects

51, 52, the two separated

objects

51, 52 are provided with mounting holes 53, a screw 1 is inserted from the upper end of the mounting hole 53 and penetrates out from the lower end of the mounting hole 53, as shown in fig. 2, 3, when the fastening surface 22 of the nut 2 is not pressed, the inner end 23 of the nut 2 is opened due to the abdicating sectional groove 25, the lower end of the shaft 11 of the screw 1 can be quickly inserted into the screw hole 21 and penetrates through the nut 2, as shown in fig. 4, the screw 1 is screwed by a screwdriver 7, the upper end surface 31 of the outer ring of the fastening rubber sleeve ring 3 extends into the mounting hole 53 to form wedge-shaped fit, the upper end surface 31 of the outer ring of the fastening rubber sleeve ring 3 is pressed by the mounting hole 53, the upper end surface 32 of the inner ring of the fastening rubber sleeve ring 3 presses the fastening surface 22 of the nut 2, thereby causing the inner end 23 of the nut 2 to generate elastic, the inner end 23 of the nut 2 is tightly held on the rod body 11 of the screw rod 1 to form thread fit, the screw rod 1 is continuously screwed, the upper end surface 31 of the outer ring of the fastening rubber sleeve 3 extends into the mounting holes 53 of the two separated

objects

51 and 52, the closer the upper end surface 31 of the outer ring of the fastening rubber sleeve 3 is wedged into the mounting holes 53 of the two separated

objects

51 and 52, the more the two separated

objects

51 and 52 are fastened, and the two

separated objects

51 and 52 are fastened together. When the screw 1 starts to be screwed, the friction force between the outer ring upper end face 31 of the fastening rubber sleeve ring 3 and the mounting hole 53 is smaller, in order to prevent the screw 1 from starting to be screwed, the nut 2 rotates along with the screw 1, a section of convex rib 26 is radially arranged on the side wall of the outer end 28 of the nut 2, and the convex rib 26 is used as a handle of the nut 2 when the screw 1 starts to be screwed, so that people can conveniently pinch the nut 2.

As shown in fig. 4-8, the tightening member is a tightening flat washer 4, and is used for increasing the holding force of the inner end 23 of the nut 2 to the screw 1, which is weakened by the axial provision of the abdicating sectional groove 25, the tightening flat washer 4 is sleeved on the tapered inclined surface of the tightening surface 22 of the nut 2 through the inner ring hole 41, when the tightening surface 22 of the nut 2 is not under pressure, the abdicating sectional groove 25 of the inner end 23 of the nut 2 can be opened, so that the lower end of the shaft 11 of the screw 1 can be quickly inserted into the screw hole 21, and in order to increase the greater elasticity of the inner end 23 of the nut 2, an annular groove 29 is radially provided at the inner end 23 of the nut 2, and the annular groove 29 is located at the bottom of the abdicating sectional groove 25. An elastic supporting piece 42 is arranged between the fastening flat washer 4 and the side wall of the nut 2, one end of the elastic supporting piece 42 is connected to the outer edge of the fastening flat washer 4, the other end of the elastic supporting piece 42 is connected to the outer side of the middle of the side wall of the nut 2, the elastic supporting piece 42 supports the fastening flat washer 4 above the fastening surface 22 of the nut 2, and when the nut 2 is pressed to compress the elastic supporting piece 42, the inner ring hole 41 of the fastening flat washer 4 is just sleeved in the conical inclined surface of the fastening surface 22 of the nut 2.

When used to secure an object 6, as shown in fig. 4-8, the fastening flat washer 4 is pressed against the lower surface of the object 6, the screw 1 is screwed, the nut 2 is pressed to compress the elastic support 42, the fastening surface 22 of the nut 2 extends into the inner annular hole 41 of the fastening flat washer 4 to form a wedge fit, and the fastening surface 22 of the nut 2 is pressed by the inner annular hole 41, thereby causing the inner end 23 of the nut 2 to elastically deform and the relief groove 25 to shrink, so that the inner end 23 of the nut 2 is held tightly against the shank 11 of the screw 1 to form a threaded fit, thereby securing the objects 6 together.

The utility model discloses design the fastening face in the inner of nut into the toper inclined plane, the lateral wall axial of the inner of nut has seted up one section and has stepped down and cut open the groove, the inner of nut opens because of stepping down cuts open the groove for the lower extreme of the pole body of screw rod can insert the screw of nut fast, when the nut of twisting soon, the binding face of binding member cup joint in the inner of nut forms and carves the cooperation of shape, when continuing to twist the nut soon, the fastening face of nut and binding member carve to close tighter, reach the purpose of two separation article of fastening connection.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present application, and all equivalent changes made according to the design key of the present application fall within the protection scope of the present application.

Claims

1. The utility model provides a screw-thread fit fastener, a serial communication port, including screw rod, nut, hooping spare, the screw rod is including the pole body that has the external screw thread and the nut that is used for revolving soon, the nut has and is used for pole body male internal screw thread screw, and the outer toper inclined plane is personally submitted in the fastening of the inner of nut, and one section groove of stepping down has been seted up to the lateral wall axial of the inner of nut, hooping spare is used for cup jointing the inner fastening face of nut, when the fastening face of the inner of nut cramps the pressurized, steps down the groove of stepping down and reduces for elastic deformation can be produced to the inner of nut.

2. A threadable mating fastener according to claim 1 wherein said offset cross-sectional slot is at least one.

3. A threadable fastener according to claim 1 wherein the side wall of the outer end of the nut is radially raised by a rib which serves as a handle for the nut.

4. The thread fit fastener as claimed in claim 1, wherein the tightening member is a tightening rubber ring, the upper end surfaces of the outer ring and the inner ring of the tightening rubber ring are provided with tapered inclined surfaces, the tightening rubber ring is sleeved on the side wall of the inner end of the nut, and the tapered inclined surface of the upper end surface of the inner ring of the tightening rubber ring is wedged with the tapered inclined surface of the tightening surface of the nut.

5. A threadingly engaged fastener according to claim 4 wherein the tapered inclined surface of the upper end surface of said inner ring is provided with an axial projection and the tapered inclined surface of the fastening surface of the nut is correspondingly provided with a recess for engagement with the projection.

6. A thread fit fastener according to claim 1 wherein said tightening member is a tightening flat washer which is passed through the inner ring aperture and over-fitted against the tapered ramp of the tightening surface of the nut.

7. A threadable engaging fastener according to claim 6 wherein an elastic support is provided between the tightening washer and the outer wall of the nut, the elastic support supporting the tightening washer above the tightening surface of the nut, the inner annular hole of the tightening washer fitting into the tapered surface of the tightening surface of the nut when the nut is compressed against the elastic support.

8. A threadingly engaged fastener according to claim 7 wherein the inner end of the nut is provided with an annular recess in the radial direction, the annular recess being at the base of the relief groove.

9. A threadedfit fastener according to claim 1 wherein said nut is a rubber or plastic member.

10. A thread fit fastener according to claim 1 wherein said cinch is a rubber or plastic member.