CN215444666U

CN215444666U - Square pipe connecting structure

Info

Publication number: CN215444666U
Application number: CN202121665196.8U
Authority: CN
Inventors: 迟达; 余丽娟
Original assignee: Tsinghua University; Suzhou Automotive Research Institute of Tsinghua University
Current assignee: Tsinghua University; Suzhou Automotive Research Institute of Tsinghua University
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-07
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to the technical field of pipe fitting connection, and discloses a square pipe connection structure which comprises a pipeline connection piece, wherein at least two joints are arranged on the pipeline connection piece at intervals, and the joints are used for being inserted into a square pipe; the joint comprises four connecting components which are distributed in a 2 x 2 array; the connecting assembly comprises a connector and an adjusting piece arranged on the connector; the adjusting piece of any one of the two connecting assemblies which are distributed in the same row and in the same column can be abutted against the connector of the other connecting assembly, and the connector of the other connecting assembly is driven to be abutted against the inner side wall of the square pipe. Each joint of this square pipe connection structure can be used for connecting the square pipe of multiple model, and the commonality is strong, and this square pipe connection structure's simple structure is convenient for assemble, dismantles and change side's pipe, and the practicality is high.

Description

Square pipe connecting structure

Technical Field

The utility model relates to the technical field of pipe fitting connection, in particular to a square pipe connecting structure.

Background

In the automotive industry, it is often involved in the need to join two or more square tubes. At present, two or more square pipes are generally connected by welding, or two or more square pipes are connected by matching a connecting piece and a bolt. The square pipes with the same or different specifications can be connected in a welding mode, but the square pipes are not convenient to assemble, disassemble or replace in the connecting mode; the existing mode of using the connecting piece and the bolt in a matched mode only can connect two or more square pipes with fixed specifications, and the universality is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a square tube connecting structure, which solves the problems that in the prior art, a square tube connected by welding is inconvenient to assemble and disassemble or replace, and the universality of the prior connecting structure is poor.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a square pipe connecting structure, comprising:

the pipeline connecting piece is provided with at least two joints at intervals and is used for being inserted into the square pipe;

the joint comprises four connecting components, and the four connecting components are distributed in a 2 x 2 array;

the connecting assembly comprises a connector and an adjusting piece arranged on the connector;

two that distribute with the same row in the coupling assembling any of coupling assembling the regulating part can support tightly in another coupling assembling the connector, and drive another coupling assembling the connector support tightly in the inside wall of square pipe.

Preferably, the connector is provided with a connecting hole, and the adjusting piece is in threaded connection with the connecting hole.

Preferably, through holes are formed in the four side walls of the square tube;

the adjusting part comprises a head and a threaded portion connected with the head, the connecting hole comprises a blind hole and a threaded hole communicated with the blind hole, the blind hole is communicated with the through hole in a one-to-one correspondence mode, the through hole is used for accommodating the head, and the threaded portion is used for penetrating through the through hole and is in threaded connection with the blind hole and the threaded hole.

Preferably, the diameter of the through hole and the diameter of the blind hole are both larger than the diameter of the head.

Preferably, the head portion has a diameter larger than a diameter of the threaded portion.

Preferably, the connector comprises a first part and a second part connected with the first part along the length direction of the first part, and the connecting holes are distributed in the first part.

Preferably, the first and second portions are integrally formed.

Preferably, the second portion is L-shaped.

Preferably, the outer surface of each of the first and second portions is provided with a pattern.

Preferably, the connector further comprises a base platform, the four connecting assemblies are arranged on the base platform, a first limiting surface is arranged on the base platform, and the square tube is inserted into the connector and abuts against the first limiting surface.

The utility model has the beneficial effects that:

the utility model aims to provide a square tube connecting structure, which comprises a pipeline connecting piece, wherein at least two joints are arranged on the pipeline connecting piece at intervals, and the joints are used for being inserted into a square tube; the joint comprises four connecting components which are distributed in a 2 x 2 array; the connecting assembly comprises a connector and an adjusting piece arranged on the connector; the adjusting piece of any one of the two connecting assemblies which are distributed in the same row and in the same column can be abutted against the connector of the other connecting assembly, and the connector of the other connecting assembly is driven to be abutted against the inner side wall of the square pipe. The pipeline connecting piece of the square pipe connecting structure is provided with at least two joints at intervals, the number of the joints can be increased or reduced according to actual working conditions, and included angles among the joints can be set according to requirements of the actual working conditions; all be equipped with four coupling assembling on every joint, four coupling assembling are 2 x 2 array distribution, specifically speaking, after the joint is pegged graft in the square pipe, four coupling assembling correspond respectively and distribute in four corners of square pipe, the direction of arranging or row of adjusting part on every coupling assembling is along the line direction of arranging and is arranged the connector application effort on the direction to another coupling assembling, so that the connector on another coupling assembling that distributes rather than the same line or the same row distributes outwards expands along the direction of action force, thereby support the inside wall in square pipe tightly, thereby four coupling assembling's connector all supports the inside wall in square pipe tightly, thereby make each joint can both be used for connecting the square pipe of multiple model, the commonality is strong, simultaneously, this square union structure's simple structure, be convenient for assemble, dismantle and change square pipe, the practicality is high.

Drawings

FIG. 1 is a schematic view of a square tube connection structure according to a first angle in accordance with an embodiment of the present invention;

FIG. 2 is an exploded view of a square tube connection structure according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a square pipe connection structure along a second angle according to an embodiment of the present invention.

In the figure:

1. a joint;

11. a connecting assembly; 111. a connector; 1111. blind holes; 1112. a threaded hole; 1113. a first portion; 1114. a second portion; 112. an adjustment member; 1121. a head portion; 1122. a threaded portion;

12. a base station; 121. a first limiting surface;

2. a square tube; 21. a through hole;

3. a second limiting surface.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides a square pipe connecting structure, as shown in figures 1-3, the square pipe connecting structure comprises a pipeline connecting piece, at least two joints 1 are arranged on the pipeline connecting piece at intervals, and the joints 1 are used for being inserted into a square pipe 2; the joint 1 comprises four connecting assemblies 11, and the four connecting assemblies 11 are distributed in a 2 x 2 array; the connecting assembly 11 comprises a connecting head 111 and an adjusting piece 112 arranged on the connecting head 111; the adjusting member 112 of any one connecting assembly 11 of the two connecting assemblies 11 distributed in the same row and the same column can abut against the connector 111 of the other connecting assembly 11, and drive the connector 111 of the other connecting assembly 11 to abut against the inner side wall of the square tube 2.

As shown in fig. 1-3, at least two joints 1 are arranged on the pipeline connecting piece of the square pipe connecting structure at intervals, the number of the joints 1 can be increased or decreased according to actual working conditions, and the included angle between the joints 1 can be set according to actual working condition requirements; each joint 1 is provided with four connecting components 11, the four connecting components 11 are distributed in 2 x 2 array, specifically, after the joint 1 is inserted into the square pipe 2, the four connecting components 11 are respectively distributed at four corners of the square pipe 2 correspondingly, the adjusting part 112 on each connecting component 11 applies acting force to the connector 111 on the other connecting component 11 along the row distribution direction or the column distribution direction, so that the connector 111 on the other connecting component 11 distributed in the same row or the same column is outwards expanded along the direction of the acting force, thereby abutting against the inner side wall of the square pipe 2, and the connectors 111 of the four connecting components 11 all abut against the inner side wall of the square pipe 2, thereby each joint 1 can be used for connecting square pipes 2 of various types, the universality is strong, meanwhile, the structure of the square pipe connecting structure is simple, and the square pipe 2 is convenient to assemble, disassemble and replace, the practicability is high.

It can be understood that, after the connectors 111 of the four connecting components 11 of the joint 1 are all tightly abutted against the inner side wall of the square pipe 2, the joint 1 is inserted into the square pipe 2 in an interference manner, so as to ensure that the square pipe 2 inserted into the joint 1 does not fall off.

As shown in fig. 1-3, the connector 111 further includes a base 12, the four connecting components 11 are disposed on the base 12, the base 12 is provided with a first limiting surface 121, and the square tube 2 is inserted into the connector 111 and abuts against the first limiting surface 121. Through setting up first spacing face 121, the grafting degree of depth of square pipe 2 grafting in joint 1 can be injectd to first spacing face 121, prevents that the grafting degree of depth of square pipe 2 is too much or too little to square pipe 2 is connected through this square pipe connection structure, has improved square pipe 2's connection accuracy.

Preferably, the abutment 12 and the four connecting members 11 of the joint 1 are integrally formed. To improve the structural strength and structural reliability of the joint 1.

Alternatively, as shown in fig. 1 to 3, the connection head 111 is provided with a connection hole, and the adjustment member 112 is threadedly connected to the connection hole. Specifically, the adjusting part 112 of one connecting assembly 11 of two connecting assemblies 11 distributed in the same row and in the same column is connected through the threaded connection to the connector 111 of the other connecting assembly 11 in the row arrangement direction or the column arrangement direction, so as to outwardly expand the connector 111 of the other connecting assembly 11 distributed in the same row or in the same column along the direction of the acting force and tightly abut against the inner side wall of the square pipe 2, so that the connectors 111 of the four connecting assemblies 11 are tightly abutted against the inner side wall of the square pipe 2, and each connector 1 can be used for connecting square pipes 2 of various models, and the universality is strong.

Optionally, as shown in fig. 1 to 3, through holes 21 are formed on four side walls of the square tube 2; the adjusting piece 112 comprises a head portion 1121 and a threaded portion 1122 connected with the head portion 1121, the connecting hole comprises a blind hole 1111 and a threaded hole 1112 communicated with the blind hole 1111, and the four blind holes 1111 and the four through holes 21 are arranged in a one-to-one correspondence manner; the through hole 21 and the blind hole 1111 are used for receiving the head 1121, and the threaded portion 1122 is used for passing through the through hole 21 and the blind hole 1111 and being screwed into the threaded hole 1112. Specifically, the adjusting element 112 of each connecting assembly 11 passes through the through hole 21 and the corresponding blind hole 1111 and is screwed into the threaded hole 1112, wherein the head 1121 of the adjusting element 112 is accommodated in a space formed by the through hole 21 and the blind hole 1111, the threaded portion 1122 of the adjusting element 112 is screwed into the threaded hole 1112 of the connector 111 of the connecting assembly 11 and abuts against the connector 111 of another connecting assembly 11 distributed in the same row or in the same column, the adjusting element 112 of the connecting assembly 11 transmits an acting force to the connector 111 of another connecting assembly 11 in the row arrangement direction or the column arrangement direction through a threaded connection manner, so that the connector 111 of another connecting assembly 11 distributed in the same row or in the same column is outwardly expanded and abuts against the inner side wall of the square pipe 2 in the direction of the acting force, and thus the connectors 111 of the four connecting assemblies 11 all abut against the inner side wall of the square pipe 2, and each connector 1 can be used for connecting square pipes 2 of various types, the universality is strong; meanwhile, the through hole 21 and the blind hole 1111 are used for accommodating the head 1121, so that the head 1121 of the adjusting member 112 can be prevented from protruding out of the through hole 21, and the appearance is improved.

It can be understood that, the larger the force is transmitted by the adjusting member 112 of the connecting component 11 to the connecting head 111 of the other connecting component 11 in the row arrangement direction or the column arrangement direction through the threaded connection, the larger the outward expansion amplitude of the connecting head 111 of the other connecting component 11 in the direction of the force is, that is, the larger the outward bending degree of the connecting head 111 of the other connecting component 11 in the direction of the force is.

Alternatively, as shown in fig. 2, the diameter of the through hole 21 and the diameter of the blind hole 1111 are both larger than the diameter of the head 1121. By setting the diameter of the through hole 21 and the diameter of the blind hole 1111 to be larger than the diameter of the head 1121, the adjusting piece 112 can conveniently penetrate through the through hole 21 and the blind hole 1111 in sequence and be screwed into the threaded hole 1112; and simultaneously, the structure of the square pipe 2 or the connector 111 can be prevented from being damaged by the adjusting member 112 in the process of assembling the square pipe 2 and the connector 111.

Alternatively, as shown in FIGS. 1-3, the diameter of the head 1121 is larger than the diameter of the threaded portion 1122. The diameter of the through hole 21 and the diameter of the blind hole 1111 are both larger than the diameter of the head 1121, and by setting the diameter of the head 1121 larger than the diameter of the threaded portion 1122, that is, the diameter of the blind hole 1111 larger than the diameter of the threaded hole 1112, the second limit surface 3 is formed at the joint of the blind hole 1111 and the threaded hole 1112, and the head 1121 of the adjusting piece 112 can abut against the second limit surface 3. Therefore, the second limiting surface 3 can limit the movement range of the adjusting part 112 along the extending direction of the threaded hole 1112, and prevent the adjusting part 112 from expanding along the direction of the threaded hole 1112 by applying an excessive force to the connector 111 of another connecting component 11 to cause the connector 111 of another connecting component 11 to crack or even break, thereby ensuring the structural integrity and the structural reliability of each connector 111 and improving the practicability of the square pipe connecting structure.

Preferably, the adjusting member 112 is a screw. The cost of the screw is low.

Alternatively, as shown in fig. 1 to 3, the connecting head 111 includes a first portion 1113, and a second portion 1114 connected to the first portion 1113 along a length direction of the first portion 1113, wherein the connecting holes are distributed in the first portion 1113. The thickness of first part 1113 is far greater than the thickness of second part 1114, through setting up the connecting hole in first part 1113, in order to guarantee that adjusting part 112 can effectively apply effort to the connector 111 of another coupling assembling 11 that distributes in the same row or the same column through screw hole 1112, thereby guarantee that the part that contacts with the inside wall of square pipe 2 on first part 1113 and the second part 1114 of connector 111 of another coupling assembling 11 can effectively support tightly in the inside wall of square pipe 2, guarantee the reliability of this square pipe connection structure connection square pipe 2, guarantee that the structure of connector 111 does not warp.

As shown in fig. 1-3, wherein the ab direction in fig. 1 is the length direction of the first portion 1113, and the second portion 1114 is connected to the first portion 1113 along the length direction of the first portion 1113 to further increase the length of the connector 111, when the adjusting member 112 applies a force to the connecting portion 1113 of another connector 111 distributed in the same row or in the same column by means of screw connection, the first portion 1113 and the second portion 1114 of the another connector 111 can be abutted against the inner sidewall of the square tube 2 by applying a smaller force; meanwhile, the service lives of the external thread of the threaded part 1122 and the internal thread of the threaded hole 1112 of the adjusting part 112 can be prolonged, and the service life of the square pipe connecting structure is prolonged; in addition, the second portion 1114 is a thin-walled member, which can reduce the weight of the connection head 111. Preferably, first portion 1113 and second portion 1114 are integrally formed. With such an arrangement, the structural reliability of the connection head 111 can be ensured. In other embodiments, the first portion 1113 and the second portion 1114 may also be welded.

Preferably, as shown in fig. 1-3, the outer surfaces of first portion 1113 and second portion 1114 are flush. So as to improve the abutting effect between the first part 1113 and the second part 1114 and the inner side wall of the square tube 2. Preferably, threaded hole 1112 is located on first portion 1113 at an end remote from abutment 12. The effect that the adjusting piece 112 applies a small acting force to the first portion 1113 of the other connecting head 111 distributed in the same row or in the same column to enable the other connecting head 111 to abut against the inner side wall of the square tube 2 is further enhanced, and the service lives of the external threads of the threaded portion 1122 and the internal threads of the threaded hole 1112 of the adjusting piece 112 are further prolonged.

Alternatively, as shown in fig. 1-3, second portion 1114 is L-shaped. Through setting up second part 1114 and being L shape, can increase the area that supports tightly that second part 1114 supports in square pipe 2's inside wall, further improve this square pipe connection structure connection square pipe 2's reliability. Specifically, the second abutting portion 1114 includes two abutting portions perpendicular to each other, and the two abutting portions respectively abut against two adjacent inner sidewalls at the upper corner of the square tube 2.

Optionally, the outer surfaces of first portion 1113 and second portion 1114 are each provided with a pattern. When acting force is applied to the connector 111, the connector 111 expands outwards along the direction of the acting force and abuts against the inner side wall of the square pipe 2, the patterns on the outer surfaces of the first part 1113 and the second part 1114 can further increase the friction force between the outer surfaces and the inner side wall of the square pipe 2, the reliability of the square pipe connecting structure for connecting the square pipe 2 is further improved, and the square pipe 2 is prevented from loosening.

In the present embodiment, as shown in fig. 1 to 3, two joints 1 are provided on the pipe connection, and the two joints 1 are vertically distributed.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A square pipe connecting structure is characterized by comprising:

the pipeline connecting piece is provided with at least two joints (1) at intervals, and the joints (1) are used for being inserted into the square pipes (2);

the joint (1) comprises four connecting assemblies (11), and the four connecting assemblies (11) are distributed in a 2-by-2 array;

the connecting assembly (11) comprises a connector (111) and an adjusting piece (112) arranged on the connector (111);

two that distribute with going in the same row and distribute with arranging any one in coupling assembling (11) regulating part (112) can support tightly in another coupling assembling (11) connector (111), and drive another coupling assembling (11) connector (111) support tightly in the inside wall of square pipe (2).

2. The square pipe connecting structure according to claim 1, wherein the connecting head (111) is provided with a connecting hole, and the adjusting member (112) is threadedly connected to the connecting hole.

3. The square tube connecting structure according to claim 2, wherein the four side walls of the square tube (2) are provided with through holes (21);

the adjusting piece (112) comprises a head (1121) and a threaded portion (1122) connected with the head (1121), the connecting hole comprises a blind hole (1111) and a threaded hole (1112) communicated with the blind hole (1111), the four blind holes (1111) are communicated with the four through holes (21) in a one-to-one correspondence mode, the through holes (21) and the blind holes (1111) are used for accommodating the head (1121), and the threaded portion (1122) is used for penetrating through the through holes (21) and the blind holes (1111) and is screwed in the threaded hole (1112).

4. A square pipe connecting structure according to claim 3, wherein the diameter of the through hole (21) and the diameter of the blind hole (1111) are each larger than the diameter of the head portion (1121).

5. The square pipe connecting structure as claimed in claim 3, wherein the head portion (1121) has a diameter larger than that of the screw portion (1122).

6. The square pipe connecting structure according to claim 3, wherein the connector (111) comprises a first portion (1113), and a second portion (1114) connected to the first portion (1113) along a length direction of the first portion (1113), and the connection holes are distributed in the first portion (1113).

7. The square tube connecting structure according to claim 6, wherein the first portion (1113) and the second portion (1114) are integrally formed.

8. The square tube connecting structure as claimed in claim 6, wherein the second portion (1114) is L-shaped.

9. The square pipe connecting structure according to claim 6, wherein the outer surfaces of the first portion (1113) and the second portion (1114) are provided with patterns.

10. The square pipe connecting structure according to any one of claims 1 to 9, wherein the connector (111) further comprises a base (12), four of the connecting members (11) are disposed on the base (12), a first limiting surface (121) is disposed on the base (12), and the square pipe (2) is inserted into the connector (111) and abuts against the first limiting surface (121).