CN216199540U

CN216199540U - Connection unit and mechanism

Info

Publication number: CN216199540U
Application number: CN202121358845.XU
Authority: CN
Inventors: 余陆军; 孙强; 段大鹏
Original assignee: Pem China Co ltd
Current assignee: Pem China Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-04-05
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a connection unit, comprising: the outer side wall of the rod body is provided with a bulge extending outwards along the radial direction; the first groove is formed on the outer side wall of the rod body and is positioned between the bulge and the open end of the rod body; a second groove formed on a side of the projection toward the open end; sealant is arranged in the first groove and the second groove. According to the utility model, the first groove and the second groove are formed, and the sealant is correspondingly arranged in the first groove and the second groove, so that both sides of the riveted first connecting part are sealed, the connecting unit and the first connecting part can be prevented from loosening or falling, and the riveting performance of the whole connecting mechanism can be improved.

Description

Connection unit and mechanism

Technical Field

The utility model relates to the field of connecting parts, in particular to a connecting unit and a connecting mechanism.

Background

The connecting mechanism comprises a connecting unit and a connecting part, and the connecting unit and the connecting part can be connected with each other. In the existing connecting mechanism, the connecting unit is generally connected with the connecting part in a press riveting mode. However, after the connection, the sealing connection unit and the connection portion do not have sealing property. Further, the caulking performance of the entire connecting mechanism is poor, resulting in a possibility of loosening or dropping between the connecting unit and the connecting portion.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, embodiments of the present invention provide a connection unit and a mechanism, which are used to solve the problems that the connection unit and the connection portion have no sealing performance and poor riveting performance.

The embodiment of the application discloses: a connection unit, comprising: the device comprises a rod body, a first fixing part and a second fixing part, wherein the rod body is provided with an opening end, and the outer side wall of the rod body is provided with a bulge part which extends outwards along the radial direction; a first groove formed on an outer side wall of the rod body, the first groove being located between the protrusion and the open end of the rod body; a second groove formed on a side of the projection toward the open end; and sealant is arranged in the first groove and the second groove.

Further, the inboard of bulge with form the spacing portion of an annular between the body of rod, the spacing portion of annular is located the bulge orientation one side of open end, the sectional area of the spacing portion of annular is followed the open end of the body of rod diminishes to the direction that the other end extended gradually.

Furthermore, the inside interval of annular spacing portion is provided with the bellying, the bellying separates annular spacing portion.

Furthermore, the sealant arranged in the first groove and the outer side wall of the rod body are located at the same circumferential surface, and the sealant arranged in the second groove and the side face of the protruding part close to the opening end are located at the same plane.

The embodiment of the application also discloses: a coupling mechanism comprising: a connection unit and a first connection portion; the connecting unit comprises a rod body, the rod body is provided with an opening end, and a bulge part extending outwards along the radial direction is arranged on the outer side wall of the rod body; a first groove formed on an outer side wall of the rod body, the first groove being located between the protrusion and the open end of the rod body; a second groove formed on a side of the projection toward the open end; sealant is arranged in the first groove and the second groove; first connecting portion have with the connecting element riveting back flow extremely the bulge with the portion that flows between the open end of the body of rod, the portion that flows have through sealed glue with the first lateral part of the lateral wall laminating of the body of rod and through sealed glue with the bulge faces the second lateral part of the side laminating of open end.

Further, the handle comprises a second connecting part, the rod body is provided with a fastening part communicated with the opening end, and the second connecting part is connected with the fastening part through a fastening unit.

Further, the second connecting portion and the first connecting portion are located on one side of the open end of the rod body.

Further, one side of the opening end departing from the rod body is closed.

Further, after the rod body is riveted with the first connecting portion, the flowing portion is provided with a flowing unit embedded into the annular limiting portion, and the sectional area of the flowing unit is gradually reduced along the direction in which the opening end of the rod body extends towards the other end.

Further, the first connecting portion and the connecting unit are connected in a turned riveting mode, the connecting unit is made of 1018 steel or 10B21 steel, and the sealant is waterproof glue.

The utility model has the following beneficial effects:

1. through seting up first recess and second recess, it is sealed gluey correspondingly to set up in first recess and second recess for all seal the both sides of the first connecting portion after the riveting, can be so that can realize sealed between linkage unit and the first connecting portion, thereby can prevent to appear not hard up or the condition that drops between linkage unit and the first connecting portion, can promote whole coupling mechanism's riveting performance.

2. The connecting unit can be effectively prevented from cracking or being damaged in the process of riveting. The sealant can be waterproof glue, so that the connecting mechanism has better waterproof performance and can be suitable for environments with higher humidity or higher water content.

In order to make the aforementioned and other objects, features and advantages of the utility model comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

FIG. 1 is a schematic view of a coupling mechanism according to an embodiment of the present invention from a first perspective;

FIG. 2 is a schematic view of the coupling mechanism of an embodiment of the present invention from a second perspective;

FIG. 3 is a front view of a coupling mechanism in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a coupling mechanism in an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of the coupling mechanism in the embodiment of the present invention;

reference numerals of the above figures: 1. a connection unit; 11. a rod body; 111. an open end; 112. a fastening section; 12. a projection; 13. a first groove; 14. a second groove; 15. sealing glue; 16. an annular limiting part; 17. a boss portion; 2. a first connection portion; 21. a flow section; 211. a first side portion; 212. a second side portion; 213. a flow cell; 3. a fastening unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the connection unit of the present embodiment includes:

the body of rod 11, the body of rod 11 can be followed and predetermine the direction extension. The predetermined direction may be a longitudinal direction of the paper surface in fig. 3. Of course, in other alternative embodiments, the preset direction may be adjusted according to actual needs. The rod body 11 may have an open end 111, an outer side wall of the rod body 11 may be provided with a protrusion 12 extending radially outward, and a projection shape of a cross section of the protrusion 12 perpendicular to an extending direction of the rod body 11 may be circular. Of course, in other alternative embodiments, the cross-sectional shape of the protruding portion 12 can be adjusted according to actual needs.

The first groove 13, the first groove 13 may be formed at an outer side wall of the rod body 11, and the first groove 13 may be recessed inwardly of the rod body 11 in a circumferential direction. The first groove 13 may be located between the protrusion 12 and the open end 111 of the rod body 11.

A second groove 14, the second groove 14 may be formed on a side of the convex portion 12 toward the open end 111.

The first groove 13 and the second groove 14 can be provided with sealant 15

Specifically, an annular limiting portion 16 may be formed between the inner side of the protruding portion 12 and the rod 11, and due to the fluidity of the metal in the first connecting portion 2, the annular limiting portion 16 may be used to limit the first connecting portion 2 after the connecting unit 1 and the first connecting portion 2 are riveted. The annular stopper portion 16 may be located on a side of the protruding portion 12 facing the open end 111, so that the flow portion 21 may enter the annular stopper portion 16 to fix the first connection portion 2 and the connection unit 1. The cross-sectional area of the annular stopper portion 16 may be gradually reduced in a direction in which the open end 111 of the rod body 11 extends toward the other end. So that the first connecting portion 2 can be embedded in the annular limiting portion 16, thereby improving the connecting effect of the connecting unit 1 and the first connecting portion 2.

Specifically, the annular limiting portion 16 may be provided with a plurality of protrusions 17 at intervals inside, the plurality of protrusions 17 may be disposed in the annular limiting portion 16 at equal intervals, and the protrusions 17 may separate the annular limiting portion 16. The separated annular limiting portions 16 form accommodating areas for the first connecting portions 2 between the adjacent protruding portions 17, so that the connection strength between the riveted connecting unit 1 and the first connecting portions 2 can be improved. The shape of the projection 17 may be a vertical arc shape in which the sectional area gradually decreases from the end adjacent to the annular stopper portion 16 toward the end away from the annular stopper portion 16. Of course, in other alternative embodiments, the shape of the protruding portion 17 can be adjusted according to actual needs.

Specifically, the sealant 15 disposed in the first groove 13 may be located on the same circumferential surface as the outer sidewall of the rod body 11, so that the first connecting portion 2 may be sealed by the sealant 15 in the first groove 13 after contacting the rod body 11. The sealant 15 disposed in the second groove 14 can be located on the same plane as the side of the protruding portion 12 adjacent to the open end 111, so that the first connecting portion 2 can be sealed by the sealant 15 in the second groove 14 after contacting the protruding portion 12.

As shown in fig. 1 to 5, the present embodiment further provides a connection mechanism, including: a connection unit 1 and a first connection portion 2;

the connection unit 1 includes a rod body 11, and the rod body 11 may extend in a predetermined direction. The predetermined direction may be a longitudinal direction of the paper surface in fig. 3. Of course, in other alternative embodiments, the preset direction may be adjusted according to actual needs. The rod body 11 may have an open end 111, an outer side wall of the rod body 11 may be provided with a protrusion 12 extending radially outward, and a projection shape of a cross section of the protrusion 12 perpendicular to an extending direction of the rod body 11 may be circular. Of course, in other alternative embodiments, the cross-sectional shape of the protruding portion 12 can be adjusted according to actual needs.

The first connection portion 2 has a flow portion 21 flowing between the protrusion portion 12 and the open end 111 of the rod body 11 after being caulked with the connection unit 1, and the flow portion 21 has a first side portion 211 attached to the outer side wall of the rod body 11 by the sealant 15 and a second side portion 212 attached to the side of the protrusion portion 12 facing the open end 111 by the sealant 15.

The first groove 13, the first groove 13 may be formed at an outer side wall of the rod body 11, and the first groove 13 may be recessed inwardly of the rod body 11 in a circumferential direction. The first groove 13 may be located between the protruding portion 12 and the open end 111 of the rod 11, so that the first side 211 of the riveted portion of the first connecting portion 2 and the connecting unit 1 may abut against the first groove 13 and further contact with the sealant 15 in the first groove 13, thereby sealing the first side 211 of the first connecting portion 2.

And a second groove 14, wherein the second groove 14 is formed on one side of the protruding part 12 facing the open end 111, so that the second side part 212 of the riveted part of the first connecting part 2 and the connecting unit 1 can be abutted against the second groove 14 and further contacted with the sealant 15 in the second groove 14, thereby sealing the second side part 212 of the first connecting part 2.

The first groove 13 and the second groove 14 are both provided with sealant 15.

In this embodiment, the mounting of the connection mechanism includes the steps of:

and S1, filling the sealant 15 into the first groove 13 and the second groove 14 of the connecting unit 1.

S2, the first connector 2 is preassembled to the connector unit 1 so that the flow portion 21 of the first connector 2 is fitted to the side of the rod 11 facing the open end 111.

And S3, the connection unit 1 and the first connection part 2 preassembled on the connection unit 1 are turned over and riveted, so that the flowing part 21 of the first connection part 2 is embedded between the convex part 12 and the open end 111 of the rod body 11, and the flowing part 21 is respectively attached to the outer side wall of the rod body 11 and the side surface of the convex part 12 facing the open end 111 through the sealant 15.

And S4, after the coupling unit 1 and the first coupling part 2 are turned and riveted, the second coupling part is coupled to the coupling unit 1 by the fastening part 112.

Borrow by above-mentioned structure, through seting up first recess 13 and second recess 14, corresponding sealed glue 15 that sets up in first recess 13 and second recess 14 for all seal the both sides of the first connecting portion 2 after riveting, can make and realize sealed between connecting unit 1 and the first connecting portion 2, thereby can prevent to appear the condition that becomes flexible or drop between connecting unit 1 and the first connecting portion 2, can promote whole coupling mechanism's riveting performance.

Specifically, a second connecting portion (not shown) may be included, the rod 11 having a fastening portion 112 communicating with the open end 111, the second connecting portion being connected to the fastening portion 112 through a fastening unit 3. The fastening portion 112 may be a threaded portion provided inside the rod body 11, and accordingly, the fastening unit 3 includes a threaded rod provided corresponding to the fastening portion 112. Of course, in other alternative embodiments, the fastening portion 112 and the fastening unit 3 may be connected by selectively snapping or the like according to actual needs.

Specifically, the second connecting portion and the first connecting portion 2 may be located at one side of the opening end 111 of the rod 11, so that after the fastening portion 112 is connected to the fastening unit 3, the first connecting portion 2 and the second connecting portion may be connected to one side of the opening end 111 of the rod 11, thereby achieving the effect of fastening the first connecting portion 2 and the second connecting portion.

In particular, the side facing away from the open end 111 of the shaft 11 may be closed. The blind hole can be seted up to body of rod 11 inside, and the blind hole is inside can include the smooth portion that is close to open end 111 and the screw portion of keeping away from open end 111, and open end 111 can correspond the setting with the head of screw. I.e. such that the connection unit 1 in this embodiment is a blind nut.

Specifically, after the rod 11 is riveted with the first connection portion 2, the flow portion 21 has the flow unit 213 embedded in the annular limiting portion 16, and the sectional area of the flow unit 213 may be gradually reduced along the direction in which the open end 111 of the rod 11 extends toward the other end, so that the rod 11 and the first connection portion 2 are combined more tightly.

Specifically, the first groove 13 may have a predetermined distance from the end of the rod 11, and the connection unit 1 may be rivet-connected to the first connection portion 2. Compared with other riveting modes such as pressure riveting connection and the like, the turnover riveting connection has the advantages that the connection strength between the connection unit 1 and the first connection part 2 is higher, and the risk of looseness or falling between the connection unit 1 and the first connection part 2 is further reduced. Because after the rivet is turned over and connected, the first groove 13 and the open end 111 of the rod body 11 can form a turned-over edge, and the existence of the preset distance can prevent the first groove 13 from appearing on the turned-over edge region, so that the sealing effect of the sealant 15 in the first groove 13 on the first connecting part 2 is enhanced. The flanging of the connection unit 1 by the flanging-riveting connection may cause the connection unit 1 to crack or be damaged in the case of using a part of the material. The material of the connecting unit 1 can adopt 1018 steel or 10B21 steel, and the plasticity of 1018 steel or 10B21 steel is good, so that the connecting unit 1 can be effectively prevented from cracking or being damaged in the riveting process. The sealant 15 can be a waterproof adhesive, so that the connecting mechanism has better waterproof performance and can be suitable for environments with higher humidity or higher water content.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A connection unit, comprising:

the device comprises a rod body, a first fixing part and a second fixing part, wherein the rod body is provided with an opening end, and the outer side wall of the rod body is provided with a bulge part which extends outwards along the radial direction;

a first groove formed on an outer side wall of the rod body, the first groove being located between the protrusion and the open end of the rod body;

a second groove formed on a side of the projection toward the open end;

and sealant is arranged in the first groove and the second groove.

2. The connection unit according to claim 1, wherein an annular limiting portion is formed between an inner side of the protrusion and the rod body, the annular limiting portion is located on one side of the protrusion facing the open end, and a sectional area of the annular limiting portion is gradually reduced along a direction in which the open end of the rod body extends toward the other end.

3. The connection unit according to claim 2, wherein the annular limiting part is internally provided with a raised part at intervals, and the raised part is used for separating the annular limiting part.

4. The connection unit according to claim 1, wherein the sealant disposed in the first groove is located at the same circumferential surface as an outer side wall of the rod body, and the sealant disposed in the second groove is located at the same plane as a side surface of the protruding portion adjacent to the open end.

5. A coupling mechanism, comprising: a connection unit and a first connection portion;

the connecting unit comprises a rod body, the rod body is provided with an opening end, and a bulge part extending outwards along the radial direction is arranged on the outer side wall of the rod body;

a second groove formed on a side of the projection toward the open end;

sealant is arranged in the first groove and the second groove;

first connecting portion have with the connecting element riveting back flow extremely the bulge with the portion that flows between the open end of the body of rod, the portion that flows have through sealed glue with the first lateral part of the lateral wall laminating of the body of rod and through sealed glue with the bulge faces the second lateral part of the side laminating of open end.

6. The connecting mechanism according to claim 5, comprising a second connecting portion, wherein the rod body has a fastening portion communicating with the open end, and the second connecting portion is connected to the fastening portion by a fastening unit.

7. The coupling mechanism of claim 6, wherein the second coupling portion and the first coupling portion are located on one side of an open end of the rod body.

8. A connection according to claim 7, wherein the side facing away from the open end of the rod is closed.

9. The connecting mechanism according to claim 5, wherein an annular stopper is formed between the inner side of the protruding portion and the rod, and after the rod is riveted with the first connecting portion, the flow portion has a flow unit embedded in the annular stopper, and a cross-sectional area of the flow unit is gradually reduced in a direction in which the open end of the rod extends toward the other end.

10. The connecting mechanism of claim 5, wherein the first connecting portion and the connecting unit are riveted together, the connecting unit is made of 1018 steel or 10B21 steel, and the sealant is waterproof glue.