CN214092614U - Rectangular pipe fixing structure - Google Patents

Abstract

The utility model discloses a rectangular tube fixing structure, which comprises a rectangular tube fastener and a rectangular tube connecting piece which are connected with each other; the rectangular tube fastener comprises two fastening shells which are spliced and fixed together, an accommodating space for fixing the rectangular tube is formed between the two fastening shells, and an elastic pressing piece for pressing against the side wall of the rectangular tube is arranged on the inner wall of the accommodating space; the rectangular pipe connecting piece comprises two connecting shells which are fixedly spliced together, an accommodating space for fixing the rectangular pipe is formed between the two connecting shells, and the inner wall of the accommodating space is provided with the elastic pressing piece for pressing against the side wall of the rectangular pipe; the two spliced connecting shells are connected and fixed on the outer side of the fastening shell. The utility model discloses in the fastening casing with it is equipped with to connect the casing inboard elasticity press part, with through elasticity press part supports tightly in the lateral wall of rectangular pipe, realizes the fastening casing with connect the steadiness between casing and the rectangular pipe.

Description

Rectangular pipe fixing structure

Technical Field

The utility model relates to a rectangular pipe connects technical field, especially relates to a rectangular pipe fixed knot constructs.

Background

At present, when a bracket is erected by adopting rectangular pipes in the market, the connection and the fixation between the two rectangular pipes are required, and generally two ways are adopted for fixation, wherein one way is to weld and fix the two rectangular pipes, but the way can ensure the connection stability of the two rectangular pipes, but is inconvenient to disassemble; in addition, the end parts of the two rectangular pipes are sleeved with the connecting sleeves to realize the butt joint of the two rectangular pipes, and the connecting sleeves are abutted to the side walls of the rectangular pipes through the screw-in bolts to ensure the stability of the connecting sleeves and the rectangular pipes.

However, the bolt is tightly abutted to the side wall of the rectangular tube, so that the plane side wall of the rectangular tube is easily recessed inwards, and the rectangular tube and the connecting sleeve are loosened to influence the connection stability between the two rectangular tubes.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a connect firm rectangular pipe fixed knot to construct.

A rectangular pipe fixing structure comprises a rectangular pipe fastener and a rectangular pipe connecting piece which are connected with each other; the rectangular tube fastener comprises two fastening shells which are spliced and fixed together, an accommodating space for fixing the rectangular tube is formed between the two fastening shells, and an elastic pressing piece for pressing against the side wall of the rectangular tube is arranged on the inner wall of the accommodating space; the rectangular pipe connecting piece comprises two connecting shells which are fixedly spliced together, an accommodating space for fixing the rectangular pipe is formed between the two connecting shells, and the inner wall of the accommodating space is provided with the elastic pressing piece for pressing against the side wall of the rectangular pipe; the two spliced connecting shells are connected and fixed on the outer side of the fastening shell.

In the utility model, one rectangular pipe is wrapped and fixed by two fastening shells, the other rectangular pipe is wrapped and fixed by two connecting shells, and the connecting shells can be connected and fixed outside the fastening shells, so that the assembly among a plurality of rectangular pipes can be realized; meanwhile, the accommodating space between the two fastening shells and the accommodating space between the two connecting shells are internally provided with elastic pressing parts which are pressed against the side walls of the rectangular tubes, namely, the elastic pressing parts are arranged on the inner sides of the fastening shells and the connecting shells so as to tightly press against the side walls of the rectangular tubes through the elastic pressing parts, so that the fastening shells and the connecting shells and the rectangular tubes are stable, and compared with the prior art, the fastening shells and the connecting shells are tightly pressed against the side walls of the rectangular tubes through locking bolts on the outer sides of the fastening shells and the connecting shells, the side walls of the rectangular tubes can be prevented from being inwards concave and deformed, so that the fastening shells and the connecting shells are not loosened from the rectangular tubes, and the rectangular tubes cannot be stably assembled.

Preferably, the two sides of the two fastening shells, which are opposite to each other, are provided with the elastic pressing pieces; the two sides of the two connecting shells which are opposite to each other are provided with the elastic pressing parts.

Preferably, the elastic pressing piece is a butterfly spring piece and is used for covering and pressing against the side wall of the rectangular tube.

Preferably, two opposite sides of the two fastening shells are recessed inwards to form a square groove, and two opposite sides of the two connecting shells are recessed inwards to form the square groove;

the butterfly spring pieces are fixed in the middle of the square grooves of the fastening shell and the connecting shell, and the diameter of the expanded butterfly spring pieces is smaller than the side length of the square grooves.

Preferably, the outer side of the fastening shell protrudes to form a square bump at a position corresponding to the square groove, two opposite sides of the square bump are respectively provided with a clamping and embedding opening, and the clamping and embedding openings penetrate into the square groove; the concatenation two together the one end of connecting the casing all extends inwards and has the installation picture peg, two the installation picture peg of connecting the casing corresponds to insert and locates in the inlay card mouth of the double-phase offside of fastening casing outside square convex block.

Preferably, the lateral wall of four corners of the square convex block of fastening casing has all been seted up the inlay card mouth, connect the casing correspond connect in the double-phase offside of the square convex block of fastening casing, and be located this square convex block one side connect the casing tip to be equipped with two corresponding the inlay card mouth of two corners on one side of this square convex block the installation picture peg.

Preferably, the lateral wall of fastening casing one end is equipped with concatenation convex position and concatenation concave position, the protruding position of concatenation extends outside the edge of this lateral wall, the concatenation concave position contracts to this lateral wall in, two the fastening casing sets up and splices together relatively, one the concatenation convex position of fastening casing and another the concatenation concave position cooperation concatenation of fastening casing is fixed.

Preferably, the inner side of the side wall at one end of the fastening shell is recessed to form a clamping groove, the clamping groove extends out of the side wall, the outer side of the side wall protrudes at a position corresponding to the clamping groove to form a clamping convex block, and the splicing convex position and the splicing concave position of the fastening shell are both arranged on the clamping convex block; the two clamping grooves of the two spliced fastening shells are spliced to form a clamping square groove, and the two clamping convex blocks of the two spliced fastening shells are spliced to form a clamping square block.

Preferably, the concatenation is two together two fastening casing the mutual opposite both sides of inlay card lug all are equipped with the inlay card mouth of lining up to in the inlay card groove, concatenation two together the tip of connecting the casing all is equipped with the installation picture peg, two the installation picture peg of connecting the casing is corresponding to be inserted and is located in the inlay card mouth of two inlay card lugs.

Preferably, the lateral wall of four corners of inlay card square has all been seted up inlay card mouth, two it locates to connect the casing correspondence the double-phase offside of inlay card square, and be located inlay card square one side connect the casing through two the installation picture peg corresponds insert locate inlay card square one side two in the inlay card mouth.

Compared with the prior art, in the rectangular pipe fixing structure, on the first hand, the connection and combination of the rectangular pipe fastener and the rectangular pipe connecting piece are more flexible and have diversity, so that the rectangular pipe fixing structure is more diverse, and a user can combine a proper rectangular pipe bracket structure according to needs; in the second aspect, the rectangular pipe fasteners and the rectangular pipe connecting pieces are higher in structural strength, and the rectangular pipe fasteners and the rectangular pipe connecting pieces are more stably connected, so that the overall stability of the rectangular pipe fixing structure is guaranteed; in a third aspect, the connection between the rectangular tube fastener and the rectangular tube connector and the rectangular tube is more stable through the arrangement of the butterfly spring pieces, the rectangular tube is not easy to generate relative displacement, and compared with a technical means that a fixing bolt is abutted to the side wall of the rectangular tube in the prior art, the phenomenon that the side wall of the rectangular tube is inwards concave and deformed after long-term use, and the rectangular tube is connected and loosened is avoided.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a perspective view of a rectangular tube fastener according to an embodiment of the present invention;

fig. 2 is a perspective view of a fastening housing according to an embodiment of the present invention;

FIG. 3 is a perspective view of a rectangular tube fastener in accordance with another embodiment of the present invention;

fig. 4 is a perspective view of a rectangular tube connector according to an embodiment of the present invention;

fig. 5 is a perspective view of a connecting housing according to an embodiment of the present invention;

fig. 6 is a perspective view of a rectangular tube connector according to another embodiment of the present invention;

FIG. 7 is a schematic view of a rectangular tube fastener and a rectangular tube connector according to an embodiment of the present invention;

fig. 8 is a schematic view of a rectangular tube fixing structure according to an embodiment of the present invention.

Reference numerals: 1. fastening the shell; 11. a splice; 111. splicing convex positions; 112. splicing the concave positions; 113. a clamping groove; 114. the convex block is embedded in a clamping manner; 12. a connecting portion; 13. a clamping and embedding opening; 14. clamping and embedding the square block; 15. an avoidance surface; 2. connecting the shell; 21. an installation part; 22. installing a plug board; 23. a butt joint plate; 3. an elastic pressing member; 4. a square groove; 41. a square bump; 42. an operation hole; 5. a reinforcing block; 51. a reinforcing structure; 52. reinforcing the grooves; 6. mounting holes; 7. an accommodating groove; 8. and a limiting bump.

Detailed Description

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like, referred to or may be referred to in this specification, are defined relative to their configuration, and are relative concepts. Therefore, it may be changed according to different positions and different use states. Therefore, these and other directional terms should not be construed as limiting terms.

The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in fig. 1 to 8, the present invention relates to a rectangular tube fixing structure, which comprises a rectangular tube fastening member and a rectangular tube connecting member which are connected with each other; the rectangular tube fastener comprises two fastening shells 1 which are spliced and fixed together, an accommodating space for fixing the rectangular tube is formed between the two fastening shells 1, and an elastic pressing piece 3 for pressing against the side wall of the rectangular tube is arranged on the inner wall of the accommodating space; the rectangular pipe connecting piece comprises two connecting shells 2 which are fixedly spliced together, an accommodating space for fixing the rectangular pipe is formed between the two connecting shells 2, and the inner wall of the accommodating space is provided with the elastic pressing piece 3 for pressing against the side wall of the rectangular pipe; the two spliced connecting shells 2 are connected and fixed on the outer side of the fastening shell 1.

In the utility model, one rectangular pipe is wrapped and fixed by two fastening shells 1, the other rectangular pipe is wrapped and fixed by two connecting shells 2, and the connecting shells 2 can be connected and fixed outside the fastening shells 1, so that the assembly among a plurality of rectangular pipes can be realized; meanwhile, the accommodating space between the two fastening shells 1 and the accommodating space between the two connecting shells 2 are internally provided with elastic pressing pieces 3 which are pressed against the side walls of the rectangular tubes, namely, the fastening shells 1 and the inner sides of the connecting shells 2 are internally provided with the elastic pressing pieces 3, so that the elastic pressing pieces 3 are tightly pressed against the side walls of the rectangular tubes to realize the stability between the fastening shells 1 and the connecting shells 2 and the rectangular tubes, and compared with the prior art, the fastening shells 1 and the connecting shells 2 are tightly pressed against the side walls of the rectangular tubes through locking bolts at the outer sides of the fastening shells 1 and the connecting shells 2, the side walls of the rectangular tubes can be prevented from being deformed inwards, so that the fastening shells 1 and the connecting shells 2 are loosened from the rectangular tubes, and the stable assembly of the rectangular tubes cannot be realized.

Preferably, the two opposite sides of the two fastening shells 1 are provided with the elastic pressing pieces 3; the two sides of the two connecting shells 2 which are opposite to each other are provided with the elastic pressing pieces 3.

The two fastening shells 1 and the two connecting shells 2 are respectively provided with two opposite elastic pressing pieces 3 which correspondingly press against two opposite sides of the rectangular pipe, so that the stability of connection between the rectangular pipe and the two fastening shells 1 and the two connecting shells 2 is further improved.

Further, in this embodiment, the elastic pressing member 3 is a butterfly spring piece, and is used for covering and pressing against the sidewall of the rectangular tube, so as to increase the area of the acting force of the butterfly spring piece on the sidewall of the rectangular tube, and to prevent the sidewall of the rectangular tube from sinking while pressing the rectangular tube; and, the belleville spring piece cover is located on the lateral wall of rectangular pipe, can restrict the rectangular pipe for fastening casing 1 or connect casing 2 and take place the displacement, improves the steadiness of being connected between rectangular pipe fixed knot structure and the rectangular pipe. In other embodiments, the elastic pressing member 3 may also be a plum blossom-shaped spring plate or a pressure plate spring, and both the plum blossom-shaped spring plate and the pressure plate spring are used for being pressed on the side wall of the rectangular tube to enhance the connection stability of the rectangular tube and the rectangular tube fixing structure.

As shown in fig. 1 to 3, in this embodiment, the fastening housing 1 of the rectangular tube fastener includes a splicing portion 11 and a connecting portion 12, the splicing portion 11 and the connecting portion 12 are both in a semi-rectangular sheet structure, one end of the connecting portion 12 in the axial direction is fixed to one side of the splicing portion 11, the inside of the connecting portion 12 is communicated with the inside of the splicing portion 11, the splicing portion 11 and the connecting portion 12 are correspondingly fastened to the side walls of two rectangular tubes, an accommodating space for accommodating a rectangular tube is formed between the two splicing portions 11 of the two fastening housings 1 that are spliced together and between the two connecting portions 12, a snap-fit opening 13 is formed on the outer side of the splicing portion 11, and butterfly-shaped spring pieces for abutting against the side walls of the rectangular tubes are respectively disposed on the sides of the splicing portion 11 and the connecting portion 12 away from their respective openings, that is, the butterfly spring pieces are arranged on the opposite sides of the two splicing parts 11 of the two spliced fastening shells 1, and the butterfly spring pieces are arranged on the opposite sides of the two connecting parts 12 of the two spliced fastening shells 1.

Two of the rectangular pipe fastener fastening casing 1 two the concatenation portion 11 and two connecting portion 12 correspond the cover and locate two rectangular pipes outside to realize assembling between two rectangular pipes, and two connecting portion 12 and two one side that concatenation portion 11 is just right each other all is equipped with butterfly spring leaf to strengthen the steadiness of being connected with the rectangular pipe, guarantee the steadiness of assembling between two rectangular pipes.

Preferably, the sides of the splicing parts 11 and the connecting parts 12, which are far away from the respective openings, are recessed to form a square groove 4, that is, the sides of the two splicing parts 11 and the two connecting parts 12 of the two fastening shells 1 which are spliced together, which are opposite to each other, are recessed to form the square groove 4, the butterfly spring piece is correspondingly fixed in the middle of the square groove 4, the diameter of the butterfly spring piece after being opened is smaller than the side length of the square groove 4 after the butterfly spring piece is pressed against the side wall of the rectangular pipe, and the periphery of the butterfly spring piece after being opened, which extends into the square groove 4, is close to the side wall of the square groove 4.

The diameter of the butterfly spring piece after being elastically deformed and expanded is smaller than the side length of the square groove 4, so that the butterfly spring piece can extend into the square groove 4, the inner side walls of the two fastening shells 1 can be pressed on the outer side wall of the rectangular pipe, and the stability of the connection between the two fastening shells 1 and the rectangular pipe can be enhanced by matching the continuous abutting force of the butterfly spring piece; moreover, the periphery of the butterfly spring piece extending into the square groove 4 after being opened is close to the side wall of the square groove 4, so that the butterfly spring piece is limited, and the butterfly spring piece is not easy to separate from the square groove 4 due to external factors.

Further, the outer side of the splicing part 11 protrudes from the position corresponding to the square groove 4 to form a square protrusion 41, that is, the inner side of the splicing part 11 forms the square groove 4 by stamping, the outer side of the splicing part 11 protrudes to form the square protrusion 41, the two opposite sides of the square protrusion 41 are both provided with the snap-fit ports 13, and the snap-fit ports 13 penetrate into the square groove 4.

The two opposite sides of the square bump 41 are provided with the clamping and embedding openings 13, so that the two connecting shells 2 of the rectangular pipe connecting piece can be spliced and correspondingly connected to the two clamping and embedding openings 13, and the rectangular pipe fastening piece and the rectangular pipe connecting piece can be connected and fixed; meanwhile, the arrangement of the square bump 41 protruding from the outer side of the splicing part 11 is also beneficial to enhancing the deformation resistance of the splicing part 11.

Furthermore, the square projection 41 is also arranged on the outer side of the connecting portion 12 corresponding to the position of the square groove 4, so as to be beneficial to enhancing the deformation-resistant strength of the connecting portion 12 and ensuring the overall stability of the fastening shell 1.

Still further, an operation hole 42 is formed in the middle of the square groove 4, and penetrates through the inside and the outside, so that the butterfly spring piece can be conveniently fixed through the operation hole 42.

In other embodiments, the two opposite sides of the square protruding block 41 outside the connecting portion 12 may also be provided with the snap-fit openings 13 for the connection of the rectangular tube connecting pieces, so as to enhance the flexibility of assembling the rectangular tube fixing structure, further enhance the flexibility of assembling the rectangular tubes, and facilitate assembling the rectangular tube support structures of different structures according to the needs of users.

In this embodiment, the side wall of the joint portion 11 far away from the connecting portion 12 is provided with a convex splicing position 111 and a concave splicing position 112, the convex splicing position 111 extends out of the edge of the semi-rectangular sheet structure of the joint portion 11, that is, the convex splicing position 111 extends out of the edge of the side wall of the joint portion 11, the concave splicing position 112 contracts into the semi-rectangular sheet structure of the joint portion 11, the fastening shell 1 is oppositely arranged and spliced together, and one of the fastening shell 1 and the other fastening shell 1 is matched, spliced and fixed with the concave splicing position 112, so as to improve the stability of the two fastening shells 1 after being spliced.

The inner side of the side wall of the splicing part 11 far away from the connecting part 12 is recessed to form a clamping and embedding groove 113, the clamping groove 113 extends to the outside of the side wall, the outer side of the side wall of the splicing part 11 far away from the connecting part 12 is protruded to form a clamping convex block 114 corresponding to the position of the clamping groove 113, the splicing convex position 111 and the splicing concave position 112 are both arranged on the clamping convex block 114, the two clamping grooves 113 of the two spliced fastening shells 1 are spliced together to form a clamping square groove, the two clamping convex blocks 114 of the two spliced fastening shells 1 are spliced together to form a clamping square block 14, the two opposite sides of the clamping and embedding block 14 are provided with clamping and embedding openings 13 which are communicated with the clamping and embedding square grooves so as to correspondingly connect the two connecting shells 2 of the rectangular pipe connecting piece, in this embodiment, the two opposite sides of the two clamping and embedding blocks 14 of the two fastening shells 1 that are spliced together are provided with clamping and embedding openings 13 that penetrate into the clamping and embedding grooves 113.

The clamping and embedding square blocks 14 are formed by splicing the two splicing parts 11, and clamping and embedding openings 13 for correspondingly connecting the two connecting shells 2 of the rectangular pipe connecting piece are formed in the clamping and embedding square blocks 14 correspondingly close to the two sides of the two fastening shells 1, so that on one hand, the connecting combination of the rectangular pipe fastening piece and the rectangular pipe connecting piece is more diversified, and the structural diversity and the practicability of the rectangular pipe fixing structure are improved; on the other hand, after the two connecting shells 2 are spliced and connected with the clamping and embedding block 14, the splicing stability of the two fastening shells 1 can be enhanced, and the overall stability of the rectangular pipe fixing structure is improved.

In this embodiment, the square protrusion 41 and the side walls of the four corners of the engaging block 14 are both provided with the engaging openings 13, and the connecting housing 2 is correspondingly buckled in the two engaging openings 13 at one side of the square protrusion 41 and/or the engaging block 14, which is beneficial to enhancing the stability of the connection between the connecting housing 2 and the fastening housing 1.

In this embodiment, the two opposite side walls of the connecting portion 12 are correspondingly provided with the reinforcing structures 51, the reinforcing structures 51 are located at one end of the connecting portion 12 away from the splicing portion 11, and the square bumps 41 are also located at one end of the connecting portion 12 away from the splicing portion 11, the two reinforcing structures 51 at one side of the two connecting portions 12 of the two fastening shells 1 spliced together are spliced together to form the reinforcing square 5, and therefore, the four sides of the rectangular pipe fastener formed by the two fastening shells 1 spliced together, which are located at one end of the connecting portion 12, are provided with two reinforcing squares 5 and two square bumps 41 corresponding to each other two by two, so as to enhance the deformation resistance of the fastening shells 1, and ensure the stability of the connection of the rectangular pipe; a reinforcing groove 52 is formed inside the connecting portion 12 at a position corresponding to the reinforcing structure 51, that is, the reinforcing structure 51 is formed outside the connecting portion 12 by punching the reinforcing groove 52 inside the connecting portion 12.

In this embodiment, the axial direction of the connecting portion 12 is perpendicular to the axial direction of the joint portion 11, and in other embodiments, an included angle between the axial direction of the connecting portion 12 and the axial direction of the joint portion 11 is an acute angle, that is, one end of the connecting portion 12 close to the joint portion 11 is bent toward one side.

Through two kinds of settings of fastening casing 1 to select suitable fastening casing 1 as required, be favorable to increasing the flexibility of rectangular pipe fixed knot constructs the combination improves its practicality greatly.

In this embodiment, a mounting hole 6 is opened on one side of the connecting portion 12 away from the opening, that is, the mounting hole 6 is opened on the opposite side of the two connecting portions 12 of the two spliced fastening shells 1, the mounting hole 6 is located at one end of the connecting portion 12 close to the spliced portion 11, and meanwhile, the mounting hole 6 is located in the middle of the fastening shell 1.

Through the arrangement of the mounting holes 6, when the two fastening shells 1 are spliced and fixed, bolts penetrate through the two opposite mounting holes 6, and nuts are screwed at the end parts of the bolts, so that the splicing and fixing of the two fastening shells 1 are realized; and, the mounting hole 6 is located in the middle of the fastening housing 1, so as to improve the stability of fixing the two fastening housings 1.

Preferably, the outer side of the connecting portion 12 is recessed inwards to form an accommodating groove 7, and the mounting hole 6 is located in the accommodating groove 7 to accommodate the screw head and the nut of the bolt through the accommodating groove 7, so as to prevent the bolt and the nut from extending out of the fastening housing 1 and affecting the assembly of the rectangular pipe fixing structure.

Further, the inboard of connecting portion 12 corresponds the protruding spacing lug 8 that forms of position department of holding recess 7 is favorable to being in two fastening casing 1 two when connecting portion 12 parcel rectangular pipe, play spacing effect to the rectangular pipe, avoid the tip of rectangular pipe too stretch into to two in the fastening casing 1, also restricted the rectangular pipe simultaneously for fastening casing 1 takes place relative displacement, reduces the direction of rectangular pipe for fastening casing 1 displacement, in order to be favorable to strengthening rectangular pipe fastener and rectangular pipe's the connection is stable.

In this embodiment, at the position where the connecting portion 12 and the splicing portion 11 are connected, the side wall of the connecting portion 12 and the side wall of the splicing portion 11 are in arc transition, so as to avoid the problem of stress concentration at the joint of the connecting portion 12 and the splicing portion 11, and ensure the structural stability of the fastening housing 1.

Preferably, one side of the splicing part 11, which is far away from the splicing convex part 111, is gradually inclined towards the connecting part 12 along the direction of the side, which is far away from the side, provided with the square groove 4, of the splicing part 11, so as to form an avoiding surface 15, and the avoiding surface 15 is in an arc-shaped trend along the direction of the side, which is far away from the side, provided with the square groove 4, of the splicing part 11.

Through the arrangement of the avoiding surface 15, the rectangular pipe can be conveniently penetrated and arranged in the accommodating space formed by the splicing parts 11.

As shown in fig. 4 to 6, in this embodiment, the connecting casing 2 of the rectangular pipe connecting piece includes an installation portion 21 and an installation plugboard 22, the installation portion 21 is a semi-rectangular sheet structure, the installation portion 21 is used for buckling on the side wall of the rectangular pipe, splicing two together the installation portion 21 is formed with an accommodation space for wrapping the rectangular pipe, one side of the installation portion 21 away from the opening thereof is provided with an elastic abutting part 3 for abutting against the side wall of the rectangular pipe, that is, splicing two together the two connecting casing 2 the two opposite sides of the installation portion 21 are both provided with the butterfly spring pieces, one end of the installation portion 21 is provided with the butterfly spring pieces, and the end part of the other end extends inwards to form the insertion hole 13 of the fastening casing 1, and the installation plugboard 22 is arranged in the clamping opening 13 of the fastening casing 1.

The two mounting insertion plates 22 of the two connecting shells 2 of the rectangular pipe connecting piece are correspondingly inserted into the square bumps 41 of the fastening shell 1 and/or the clamping embedding openings 13 at the two sides of the clamping embedding square blocks 14 to realize the connection of the rectangular pipe connecting piece and the rectangular pipe fastening piece, and the butterfly spring pieces are arranged at the opposite sides of the two mounting parts 21 so as to tightly abut against the rectangular pipe together through the two butterfly spring pieces to ensure the connection stability of the rectangular pipe connecting piece and the rectangular pipe; and simultaneously, the rectangular pipe fastener with the combination of rectangular pipe connecting piece possesses the variety to improve the variety of rectangular pipe component structure, improve greatly the practicality of rectangular pipe connecting piece.

In this embodiment, one side of the mounting portion 21 away from the opening is recessed to form the square groove 4, that is, the two mounting portions 21 of the rectangular tube connecting member are spliced together, the square groove 4 is arranged on one side of the rectangular tube connecting member opposite to the side of the mounting portion 21, the butterfly spring piece is fixed in the middle of the square groove 4, and the diameter of the expanded butterfly spring piece is smaller than the side length of the square groove 4, so that after the butterfly spring piece is expanded, the butterfly spring piece can extend into the square groove 4 to be matched with the two mounting portions 21 to clamp the rectangular tube together.

The square bump 41 is formed by protruding the outer side of the mounting part 21 corresponding to the position of the square groove 4, so as to strengthen the structural strength of the connecting shell 2.

An operation hole 42 penetrating to the outside of the connecting shell 2 is formed in the middle of the bottom of the square groove 4, so that the butterfly spring piece is connected and fixed in the square groove 4.

Correspond on the double-phase opposite side wall of installation department 21 and be equipped with additional strengthening 51, just additional strengthening 51 is located installation department 21 is kept away from the one end of installation picture peg 22, two when installation department 21 splices together, two additional strengthening 51 forms strengthen square 5, in order to improve connect casing 2's structural strength, installation department 21 is inboard to additional strengthening 51 position department is equipped with strengthen recess 52, promptly, through install department 21 inboard punching press out strengthen recess 52, in order the outside of installation department 21 forms additional strengthening 51.

The one end of installation department 21 is equipped with square groove 4, square bump 41 and additional strengthening 51, the other end of installation department 21 is equipped with mounting hole 6, and two concatenations are in the same place two of installation department 21 mounting hole 6 is just right each other, mounting hole 6 is located installation department 21 is close to the one end of installation picture peg 22, promptly, mounting hole 6 is located installation department 21 keeps away from square groove 4's one end.

Through two mounting hole 6's setting, and then can pass through two the bolt runs through two mounting hole 6 to through nut locking guarantees two the concatenation of connecting casing 2 is fixed.

The outer side of the mounting part 21 is recessed inwards to form the accommodating groove 7, the mounting hole 6 on the mounting part 21 is positioned in the accommodating groove 7, so as to accommodate the screw head and the nut of the bolt, prevent the bolt and the nut from extending out of the connecting shell 2 and influencing the assembly of the rectangular pipe fastener and the rectangular pipe connecting piece, meanwhile, the position of the inner side of the mounting part 21 corresponding to the accommodating groove 7 is protruded to form the limiting bump 8, which is beneficial to when the two mounting parts 21 of the two connecting shells 2 are wrapped by rectangular pipes, the rectangular pipes are limited, the end parts of the rectangular pipes are prevented from excessively extending into the two connecting shells 2, meanwhile, the relative displacement of the rectangular pipes relative to the connecting shell 2 is limited, and the direction of the rectangular pipes relative to the displacement of the connecting shell 2 is reduced, so that the stability of connection between the rectangular pipe connecting piece and the rectangular pipes is enhanced.

It should be noted that the square groove 4, the square protrusion 41, the leaf spring, the operation hole 42, the reinforcing structure 51, the mounting hole 6, and the accommodating groove 7 of the rectangular pipe fastener are all the same as the square groove 4, the square protrusion 41, the leaf spring, the operation hole 42, the reinforcing structure 51, the mounting hole 6, and the accommodating groove 7 of the rectangular pipe connector, and play the same role.

In other embodiments, one end of the mounting portion 21 close to the mounting insertion plate 22 is bent toward one side, so that a user can more freely combine the shape and structure of the rectangular tube fixing structure according to the structure of the mounting portion, and the diversity of the combination of the rectangular tube fixing structure is improved.

In this embodiment, three sides of the mounting portion 21, which is in a semi-rectangular sheet structure and is far away from one end of the square groove 4, are extended inward with abutting plates 23, that is, a rectangular space is enclosed between the abutting plates 23 of the two mounting portions 21 that are spliced together, and the square bump 41 and/or the clamping block 14 of the fastening housing 1 are adapted to be embedded into the rectangular space; the square mounting insertion plates 22 extend inwards in the corner areas of the abutting plates 23, that is, the mounting insertion plates 22 of the two mounting parts 21 which are spliced together extend close to each other; two it locates to connect the casing 2 correspondence the fastening casing 1's square convex block 41 and/or the inlay card square 14 two back to side, two connect the casing 2 two four installation picture peg 22 one-to-ones of installation department 21 are inserted and are located in the fastening casing 1's square convex block 41 and/or four inlay card mouths 13 of inlay card square 14, and butt joint board 23 butt joint in the fastening casing 1's square convex block 41 and/or the periphery of inlay card square 14, also be, the concatenation is two together the inner wall butt joint in synthetic rectangle space is enclosed to the butt joint board 23 of installation department 21 in the fastening casing 1's square convex block 41 and/or the periphery of inlay card square 14.

Through two four installation picture pegs 22 one-to-one of connecting casing 2 are inserted and are located in four inlay card mouths 13 of the square convex block 41 of fastening casing 1 and/or inlay card square 14, in order to guarantee two connect casing 2 with the steadiness that fastening casing 1 connects, and, the concatenation is two together butt plate 23 of installation department 21 encloses synthetic rectangle space confession fastening casing 1's square convex block 41 and/or inlay card square 14 stretch into, and the butt in the periphery of the square convex block 41 of fastening casing 1 and/or inlay card square 14 can make connect casing 2 with connection between the fastening casing 1 is more firm, and difficult emergence is rocked, has guaranteed the whole steadiness of rectangular pipe fixed knot structure.

In summary, compared with the prior art, in the rectangular tube fixing structure of the present invention, on the first hand, the connection and combination of the rectangular tube fastener and the rectangular tube connector are more flexible and diversified, so that the rectangular tube fixing structure is also more diversified, thereby facilitating a user to combine a suitable rectangular tube support structure as required; in the second aspect, the rectangular pipe fasteners and the rectangular pipe connecting pieces are higher in structural strength, and the rectangular pipe fasteners and the rectangular pipe connecting pieces are more stably connected, so that the overall stability of the rectangular pipe fixing structure is guaranteed; in a third aspect, the connection between the rectangular tube fastener and the rectangular tube connector and the rectangular tube is more stable through the arrangement of the butterfly spring pieces, the rectangular tube is not easy to generate relative displacement, and compared with a technical means that a fixing bolt is abutted to the side wall of the rectangular tube in the prior art, the phenomenon that the side wall of the rectangular tube is inwards concave and deformed after long-term use, and the rectangular tube is connected and loosened is avoided.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. The utility model provides a rectangular pipe fixed knot constructs which characterized in that: comprises a rectangular pipe fastener and a rectangular pipe connecting piece which are connected with each other; the rectangular tube fastener comprises two fastening shells which are spliced and fixed together, an accommodating space for fixing the rectangular tube is formed between the two fastening shells, and an elastic pressing piece for pressing against the side wall of the rectangular tube is arranged on the inner wall of the accommodating space; the rectangular pipe connecting piece comprises two connecting shells which are fixedly spliced together, an accommodating space for fixing the rectangular pipe is formed between the two connecting shells, and the inner wall of the accommodating space is provided with the elastic pressing piece for pressing against the side wall of the rectangular pipe; the two spliced connecting shells are connected and fixed on the outer side of the fastening shell.

2. The rectangular tube fixing structure according to claim 1, wherein: the two sides of the two fastening shells which are opposite to each other are provided with the elastic pressing pieces; the two sides of the two connecting shells which are opposite to each other are provided with the elastic pressing parts.

3. The rectangular tube fixing structure according to claim 2, wherein: the elastic pressing piece is a butterfly spring piece and is used for covering and pressing against the side wall of the rectangular tube.

4. The rectangular tube fixing structure according to claim 3, wherein: two opposite sides of the two fastening shells are recessed inwards to form a square groove, and two opposite sides of the two connecting shells are recessed inwards to form the square groove;

the butterfly spring pieces are fixed in the middle of the square grooves of the fastening shell and the connecting shell, and the diameter of the expanded butterfly spring pieces is smaller than the side length of the square grooves.

5. The rectangular tube fixing structure according to any one of claims 1 to 4, wherein: the outer side of the fastening shell is protruded to form a square convex block corresponding to the square groove, clamping and embedding openings are formed in two opposite sides of the square convex block, and the clamping and embedding openings penetrate into the square groove; the concatenation two together the one end of connecting the casing all extends inwards and has the installation picture peg, two the installation picture peg of connecting the casing corresponds to insert and locates in the inlay card mouth of the double-phase offside of fastening casing outside square convex block.

6. The rectangular tube fixing structure according to claim 5, wherein: the lateral wall of four corners of the square convex block of fastening casing has all been seted up the inlay card mouth, connect the casing correspond connect in the double-phase offside of the square convex block of fastening casing, and be located this square convex block one side connect the casing tip to be equipped with two corresponding to the inlay card mouth of two corners of this square convex block one side the installation picture peg.

7. The rectangular tube fixing structure according to any one of claims 1 to 4, wherein: the side wall of fastening casing one end is equipped with concatenation convex position and concatenation concave position, the edge that this lateral wall was extended to the protruding position of concatenation is outside, the concatenation concave position shrink is to this lateral wall in, two the fastening casing sets up and splices together relatively, and one of it the concatenation convex position of fastening casing is fixed with another the concatenation concave position cooperation concatenation of fastening casing.

8. The rectangular tube fixing structure according to claim 7, wherein: the inner side of the side wall at one end of the fastening shell is sunken to form a clamping groove, the clamping groove extends out of the side wall, the outer side of the side wall is protruded to form a clamping convex block at a position corresponding to the clamping groove, and the splicing convex position and the splicing concave position of the fastening shell are both arranged on the clamping convex block; the two clamping grooves of the two spliced fastening shells are spliced to form a clamping square groove, and the two clamping convex blocks of the two spliced fastening shells are spliced to form a clamping square block.

9. The rectangular tube fixing structure according to claim 8, wherein: two of concatenation together the mutual back to back both sides of fastening casing inlay the lug and all be equipped with the inlay card mouth of lining up to the inlay card inslot, two of concatenation together the tip of connecting the casing all is equipped with the installation picture peg, two the installation picture peg of connecting the casing is corresponding to be inserted and is located in the inlay card mouth of two inlay card lugs.

10. The rectangular tube fixing structure according to claim 9, wherein: the lateral wall of four corners of inlay card square has all been seted up inlay card mouth, two it corresponds to locate to connect the casing inlay card two offsides of square are located inlay card square one side connect the casing through two the installation picture peg corresponds to insert and locates inlay card square one side two in the inlay card mouth.

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