CN217584818U - Connecting structure of built-in metal air pipe of civil engineering air duct - Google Patents
Connecting structure of built-in metal air pipe of civil engineering air duct Download PDFInfo
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- CN217584818U CN217584818U CN202221559256.2U CN202221559256U CN217584818U CN 217584818 U CN217584818 U CN 217584818U CN 202221559256 U CN202221559256 U CN 202221559256U CN 217584818 U CN217584818 U CN 217584818U
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Abstract
The utility model relates to a pipe fitting technical field especially relates to a connection structure of built-in metal tuber pipe in civil engineering wind channel. Through set up first connecting wall and second connecting wall on the lateral wall of first metal tuber pipe and second metal tuber pipe respectively to form the first recess and the second recess that are used for the butt joint, form the annular space that can hold the sealing member jointly, because the interior outer ring position that the butt joint department of first recess and second recess corresponds the annular space is the dislocation set, can further improve the leakproofness of metal tuber pipe junction, the straight-bar passes the annular space and is connected just with the fastener the straight-bar passes the butt joint department of first recess and second recess respectively, realizes the assembly stability between first metal tuber pipe and the second metal tuber pipe.
Description
Technical Field
The utility model relates to a pipe fitting technical field especially relates to a connection structure of built-in metal tuber pipe in civil engineering wind channel.
Background
As shown in fig. 1, in the existing connection structure of the metal air ducts installed in the civil air duct, generally, angle steel 3 is disposed on a first metal air duct 1 and a second metal air duct 2, and flange mounting bolt holes 4 are disposed on the angle steel, and the first metal air duct and the second metal air duct are fixed through the cooperation of bolts and nuts, however, the sealing performance depends on the gap between the two metal air ducts, in the actual use process, the sealing performance is often insufficient due to the reason that the two metal air ducts are not closely aligned, the bolt and nut are not closely matched, and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a connection structure of the built-in metal tuber pipe in civil engineering wind channel.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a connection structure of metal air pipes arranged in a civil air duct is disclosed, wherein the metal air pipes comprise a first metal air pipe and a second metal air pipe which are coaxial and are arranged oppositely, a first connection wall is arranged on the outer surface of the side wall at one end, connected with the second metal air pipe, of the first metal air pipe, and forms a first groove with the side wall, a second connection wall is arranged on the outer surface of the side wall at one end, connected with the first metal air pipe, of the second metal air pipe, and forms a second groove with the side wall, the first groove and the second groove are butted to form an annular space capable of accommodating a sealing element, and the inner ring position and the outer ring position of the annular space corresponding to the butt joint of the first groove and the second groove are arranged in a staggered manner; the connecting structure further comprises a straight rod and a fastener, the straight rod penetrates through the annular space to be connected with the fastener, and the straight rod penetrates through the butt joint of the first groove and the second groove respectively.
Furthermore, the first connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded with the outer surface of the first metal air pipe, and the end part of the long side corresponding to the L shape protrudes out of one end face of the first metal air pipe connected with the second metal air pipe; the second connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded with the outer surface of the second metal air pipe, and the end part of the long side corresponding to the L shape does not protrude out of one end face of the second metal air pipe connected with the first metal air pipe.
Furthermore, the straight rod sequentially penetrates through the part, corresponding to the L-shaped long edge, of the first connecting wall of the first groove and the part, located on the side wall, of the second connecting wall of the second groove.
Furthermore, the butt joint end surface of the first groove and the second groove is concave, and the butt joint end surface of the second groove and the first groove is convex matched with the concave.
Furthermore, the number of the straight rods is two, and the two straight rods are respectively close to two opposite side walls of the metal air pipe.
The beneficial effects of the utility model reside in that:
the utility model provides a pair of built-in metal air pipe's in civil engineering wind channel connection structure through set up first connecting wall and second connecting wall on the lateral wall at first metal tuber pipe and second metal tuber pipe respectively to form first recess and the second recess that is used for the butt joint, form the annular space that can hold the sealing member jointly, because the interior outer ring position that the butt joint department of first recess and second recess corresponds the annular space is dislocation set, can further improve the leakproofness of metal tuber pipe junction, the straight-bar passes the annular space and is connected just with the fastener the straight-bar passes the butt joint department of first recess and second recess respectively, realizes the assembly stability between first metal tuber pipe and the second metal tuber pipe.
Drawings
Fig. 1 is a schematic structural view showing a connection structure of a metal air duct installed in a civil air duct in the prior art;
fig. 2 is a schematic structural view showing a connection structure of a built-in metal air duct of a civil air duct of the present invention;
fig. 3 is a cross-sectional view showing a connection structure of a metal air duct built in a civil air duct according to the present invention;
fig. 4 is a sectional view showing a connection structure of a metal air duct built in a civil air duct according to the present invention;
fig. 5 is a sectional view of the connection structure of the metal air duct installed in the civil air duct according to the present invention;
description of reference numerals:
1. a first metal air duct; 2. a second metal air duct; 3. angle steel; 4. a first connecting wall; 5. a first groove; 6. a second connecting wall; 7. a second groove; 8. a straight rod; 9. a fastener.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 2 to 5, the present invention provides a connection structure for a metal air duct installed in a civil air duct, wherein the metal air duct includes a first metal air duct and a second metal air duct which are coaxial and are arranged oppositely, a first connection wall is arranged on an outer surface of a side wall at one end of the first metal air duct connected to the second metal air duct and forms a first groove with the side wall, a second connection wall is arranged on an outer surface of a side wall at one end of the second metal air duct connected to the first metal air duct and forms a second groove with the side wall, the first groove and the second groove are butted to form an annular space capable of accommodating a sealing member, and the butt joint of the first groove and the second groove corresponds to the inner ring position and the outer ring position of the annular space and are arranged in a staggered manner; the connecting structure further comprises a straight rod and a fastener, the straight rod penetrates through the annular space to be connected with the fastener, and the straight rod penetrates through the butt joint of the first groove and the second groove respectively.
From the above description, the beneficial effects of the present invention are:
the utility model provides a pair of connection structure of built-in metal tuber pipe in civil engineering wind channel is through setting up first connecting wall and second connecting wall respectively on the lateral wall of first metal tuber pipe and second metal tuber pipe to form first recess and the second recess that is used for the butt joint, form the annular space that can hold the sealing member jointly, because the interior outer ring position that the butt joint department of first recess and second recess corresponds the annular space is dislocation set, can further improve the leakproofness of metal tuber pipe junction, the straight-bar passes the annular space and is connected just with the fastener the straight-bar passes the butt joint department of first recess and second recess respectively, realizes the assembly stability between first metal tuber pipe and the second metal tuber pipe.
Furthermore, the first connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded with the outer surface of the first metal air pipe, and the end part of the long side corresponding to the L shape protrudes out of one end face of the first metal air pipe connected with the second metal air pipe; the second connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded with the outer surface of the second metal air pipe, and the end part of the long side corresponding to the L shape does not protrude out of one end surface of the second metal air pipe connected with the first metal air pipe.
According to the structure, the inner ring and the outer ring of the annular space corresponding to the butt joint of the first groove and the second groove are arranged in a staggered mode.
Furthermore, the straight rod sequentially penetrates through the part, corresponding to the L-shaped long edge, of the first connecting wall of the first groove and the part, located on the side wall, of the second connecting wall of the second groove.
As can be seen from the above description, with the above structure, the first groove and the second groove can be locked after being butted and cannot be separated.
Furthermore, the butt joint end surface of the first groove and the second groove is concave, and the butt joint end surface of the second groove and the first groove is convex matched with the concave.
From the above description, through the above structure, the first groove and the second groove are in insertion fit on the butt joint end face, and the radial limiting effect of the metal air pipe can be achieved.
Furthermore, the number of the straight rods is two, and the two straight rods are respectively close to two opposite side walls of the metal air pipe.
Referring to fig. 2 to 5, a first embodiment of the present invention is:
the utility model discloses a connection structure of metal air pipes installed in civil engineering air duct, the metal air pipe comprises a first metal air pipe 1 and a second metal air pipe 2 which are coaxial and are arranged oppositely, and the first metal air pipe and the second metal air pipe are square pipes with square cross sections;
a first connecting wall 4 is arranged on the outer surface of the side wall of one end, connected with the second metal air pipe, of the first metal air pipe, and a first groove 5 is formed between the first connecting wall and the side wall, the first connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded with the outer surface of the first metal air pipe, and the end part of the long side corresponding to the L shape protrudes out of one end face, connected with the second metal air pipe, of the first metal air pipe;
the outer surface of the side wall of one end, connected with the first metal air pipe, of the second metal air pipe is provided with a second connecting wall 6, and a second groove 7 is formed by the side wall where the second connecting wall is located, the second connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded to the outer surface of the second metal air pipe, and the end part of the long side corresponding to the L shape is not protruded.
The first groove and the second groove are butted to form an annular space capable of accommodating a sealing element together, wherein the butting end surfaces of the first groove and the second groove are concave, and the butting end surfaces of the second groove and the first groove are convex matched with the concave. The sealing element is a rubber gasket, and a through hole for the straight rod to pass through is arranged at the position corresponding to the straight rod.
The joint of the first groove and the second groove is arranged in a staggered manner corresponding to the inner ring position and the outer ring position of the annular space; that is, in the axial direction of the metal air duct, the butt joint of the inner ring and the outer ring of the annular space is not on the same plane.
The connecting structure further comprises a straight rod 8 and a fastening piece 9, the straight rod penetrates through the annular space to be connected with the fastening piece, and the straight rod penetrates through the butt joint of the first groove and the second groove respectively. Specifically, the method comprises the following steps: the straight rod sequentially penetrates through the part, corresponding to the L-shaped long edge, of the first connecting wall of the first groove and the part, located on the side wall, of the second connecting wall of the second groove. That is to say, the part that corresponds the long limit of L type in the first connecting wall of first recess and the part of the second connecting wall place lateral wall of second recess all are equipped with the through-hole that supplies the straight-bar to pass, set up resin in through-hole department in order to reach further sealed effect. The number of the straight rods is two, and the two straight rods are respectively close to two opposite side walls of the metal air pipe.
The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A connection structure of metal air pipes is arranged in a civil air duct, wherein the metal air pipes comprise a first metal air pipe and a second metal air pipe which are coaxial and are arranged oppositely, and is characterized in that a first connection wall is arranged on the outer surface of the side wall of one end, connected with the second metal air pipe, of the first metal air pipe, a first groove is formed by the first connection wall and the side wall, connected with the first metal air pipe, of the second metal air pipe, a second connection wall is arranged on the outer surface of the side wall of one end, connected with the first metal air pipe, of the second metal air pipe, a second groove is formed by the second connection wall and the side wall, the first groove and the second groove are in butt joint to form an annular space capable of accommodating a sealing element, and the butt joint of the first groove and the second groove corresponds to the inner ring position and the outer ring position of the annular space in a staggered mode; the connecting structure further comprises a straight rod and a fastener, the straight rod penetrates through the annular space to be connected with the fastener, and the straight rod penetrates through the butt joint of the first groove and the second groove respectively.
2. The connecting structure for the built-in metal air ducts of the civil air ducts according to claim 1, wherein the first connecting wall is L-shaped, the end of the short side corresponding to the L shape is welded to the outer surface of the first metal air duct, and the end of the long side corresponding to the L shape protrudes from one end surface of the first metal air duct connected to the second metal air duct; the second connecting wall is L-shaped, the end part of the short side corresponding to the L shape is welded with the outer surface of the second metal air pipe, and the end part of the long side corresponding to the L shape does not protrude out of one end surface of the second metal air pipe connected with the first metal air pipe.
3. The connecting structure for the built-in metal air ducts of the civil air duct as claimed in claim 2, wherein the straight bar sequentially passes through the part of the first connecting wall of the first groove corresponding to the long side of the L shape and the part of the side wall of the second connecting wall of the second groove.
4. The connecting structure for the built-in metal air ducts of the civil air duct according to claim 1, wherein the abutting end surfaces of the first groove and the second groove are concave, and the abutting end surfaces of the second groove and the first groove are convex which is matched with the concave shape.
5. The connecting structure for the built-in metal air ducts of the civil air duct according to claim 1, wherein the number of the straight bars is two, and the two straight bars are respectively arranged close to two opposite side walls of the metal air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221559256.2U CN217584818U (en) | 2022-06-21 | 2022-06-21 | Connecting structure of built-in metal air pipe of civil engineering air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221559256.2U CN217584818U (en) | 2022-06-21 | 2022-06-21 | Connecting structure of built-in metal air pipe of civil engineering air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217584818U true CN217584818U (en) | 2022-10-14 |
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ID=83531936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221559256.2U Active CN217584818U (en) | 2022-06-21 | 2022-06-21 | Connecting structure of built-in metal air pipe of civil engineering air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217584818U (en) |
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2022
- 2022-06-21 CN CN202221559256.2U patent/CN217584818U/en active Active
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