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CN-117905971-B - Prefabricated mounting structure of metal tuber pipe

CN117905971BCN 117905971 BCN117905971 BCN 117905971BCN-117905971-B

Abstract

The application discloses a prefabricated mounting structure of a metal air pipe, which belongs to the technical field of pipeline connecting structures and is used for providing an air pipe prefabricated mounting structure with better connecting flatness, comprising a bridging piece for connecting adjacent pipe bodies, wherein the bridging piece comprises an inner frame and an outer frame, a narrowing frame is arranged between the outer wall of the inner frame and the inner wall of the outer frame, an embedded groove is formed between the two end faces of the narrowing frame and the outer wall of the inner frame as well as between the inner wall of the outer frame, the outer frame is fixedly connected with crimping pieces respectively on a pair of opposite outer side faces, the pipe body is provided with side clamping plates which extend outwards on the side faces perpendicular to the crimping pieces, and the outer frame is fixedly connected with clamping pieces on one side perpendicular to the crimping pieces. According to the application, the crimping piece structures are arranged on the opposite sides, the connected adjacent pipe bodies can be better kept in the same extension direction by applying the pre-compression force, and the connecting ends of the pipe body units can be well kept flush by matching with the embedded structure of the bridging piece at the end parts of the pipe bodies, so that the light transmission probability of the connecting parts is effectively reduced, and the air tightness is effectively improved.

Inventors

  • ZHU HAIBO
  • LIU JIE
  • LI XIAOYA
  • LU BINGGANG
  • HUANG YONG
  • HUANG XIANPING
  • YU JINGBO
  • ZHANG LINFENG

Assignees

  • 中科盛博建设集团有限公司

Dates

Publication Date
20260505
Application Date
20240304

Claims (8)

  1. 1. A prefabricated installation structure of a metal air duct is characterized by comprising bridging members (2) for connecting adjacent pipe bodies (1), wherein each bridging member (2) comprises an inner frame (201) and an outer frame (202), a narrowing frame (203) is arranged between the outer wall of each inner frame (201) and the inner wall of each outer frame (202), an embedded groove (204) is formed between the two end faces of each narrowing frame (203) and the outer wall of each inner frame (201) as well as between the inner walls of each outer frame (202), an embedded edge (101) is arranged at the end part of each pipe body (1), the embedded edge (101) is suitable for being embedded into each embedded groove (204), each outer frame (202) is fixedly connected with a pressing member (3) on a pair of opposite outer side faces, the pressing members (3) are suitable for pressing the outer surfaces of the pipe bodies (1), each pressing member (3) comprises a pinch plate (301), a pair of pressing plates (302) are arranged on the same side of each pinch plate (301), a first blind hole (205) is formed in the outer side of each pinch plate (202), a first blind hole (205) is formed in the outer side of each pinch plate (301), the buckling plate (301) is fixedly connected with the outer frame (202) through a first bolt (5) penetrating through the first through hole (304) and matched with the first blind hole (205), the side face perpendicular to the crimping piece (3) of the tube body (1) is provided with a side clamping plate (104) extending outwards, the outer frame (202) is fixedly connected with a clamping piece (4) on one side perpendicular to the crimping piece (3), the clamping piece (4) is suitable for limiting adjacent side clamping plates (104), the clamping piece (4) comprises a sliding plate (401), a pair of inner clamping plates (402) are arranged on the same side of the sliding plate (401), the front end face and the rear end face of the outer frame (202) are suitable for being respectively attached to the same side of the sliding plate (401), an outer clamping plate (403) for framing the two inner clamping plates (402) is further arranged on the same side of the sliding plate (401), and a sliding groove (404) is formed between the outer clamping plate (403), the inner clamping plate (402) and the sliding plate (401) and is suitable for being matched with the side clamping plate (104).
  2. 2. The prefabricated mounting structure of a metal air duct according to claim 1, wherein the cross section of the inner frame (201) is arc-shaped, the outer wall of the inner frame (201) is a plane, the inner wall of the inner frame is an arc surface, and the thickness of the inner frame (201) is gradually thinned from the middle to the two ends.
  3. 3. The prefabricated mounting structure for a metal air duct according to claim 2, wherein the distance between the two ends of the inner frame (201) is larger than the distance between the two ends of the outer frame (202), and the thickness of the material at the two ends of the inner frame (201) is zero.
  4. 4. A prefabricated mounting structure for a metal ductwork according to claim 3, characterized in that said bridge (2) has insert plates (207) respectively in opposite insert grooves (204), two of said insert edges (101) being located on symmetrical sides of the ends of said tubular body (1), said tubular body (1) having, at its ends, relief grooves (103) located between two of said insert edges (101) adapted to engage with said insert plates (207).
  5. 5. The prefabricated mounting structure for a metal air duct according to claim 4, wherein the end of the duct body (1) is provided with an end hanging edge (102) which is transited from the embedded edge (101) to the yielding groove (103), and the end face of the end hanging edge (102) is flush with the end face of the embedded edge (101) and is suitable for being embedded into the embedded groove (204) parallel to the inserting plate (207).
  6. 6. The prefabricated mounting structure of metal air duct according to claim 5, wherein the side clamping plates (104) are located on the edges of the giving-up grooves (103) and are formed by cutting and stamping materials at the giving-up grooves (103).
  7. 7. The prefabricated installation structure of a metal air duct according to any one of claims 1 to 6, wherein a reinforcing frame (303) is arranged on one side of the pinch plate (301) facing away from the pressing plate (302), all the first through holes (304) are located in the reinforcing frame (303), and a friction pad (305) is arranged on the side of the pressing plate (302) facing the duct body (1).
  8. 8. The prefabricated installation structure of the metal air duct according to any one of claims 1 to 6, wherein a second blind hole (206) is formed in the outer side surface of the outer frame (202), a second through hole (406) corresponding to the second blind hole (206) is formed in the sliding plate (401), the sliding plate (401) is fixedly connected with the outer frame (202) through a second bolt (6) penetrating through the second through hole (406) and matched with the second blind hole (206), and rib plates (405) facing away from the sliding grooves (404) are arranged at two ends of the sliding plate (401).

Description

Prefabricated mounting structure of metal tuber pipe Technical Field The application relates to the technical field of pipeline connecting structures, in particular to a metal air pipe prefabricated installation structure. Background The air duct has the functions of keeping air fresh, realizing ventilation, reducing indoor temperature, reducing environmental pollution and the like, so that for a building with larger depth, the internal configuration of the air duct is very important, the long air duct with larger length is difficult to transport, so that the metal air duct is divided into a plurality of small sections and then connected by using a mounting structure, but the end face of the air duct is larger, the existing mounting structure can realize connection although the prefabricated air duct can be difficult to align during connection due to some reasons, the air duct unit is likely to be uneven in the extending direction, poor light leakage and air tightness are likely to be caused, the traditional connection mode is that the end part of the air duct unit is directly connected by using a connecting piece, the structural integrity of the end part of the air duct unit is easy to be damaged, and after the end part of the air duct unit is damaged, the air tightness is greatly reduced, so that the air supply efficiency is influenced. Disclosure of Invention The application aims to provide a metal air duct prefabricated installation structure with better connection flatness. In order to achieve the aim, the application provides a prefabricated installation structure of a metal air duct, which comprises bridging pieces for connecting adjacent duct bodies, wherein each bridging piece comprises an inner frame and an outer frame, a narrowing frame is arranged between the outer wall of the inner frame and the inner wall of the outer frame, an embedded groove is formed between the two end faces of each narrowing frame and the outer wall of the inner frame as well as between the two end faces of each narrowing frame and the inner wall of the outer frame, embedded edges are arranged at the end parts of the duct bodies and are suitable for being embedded into the embedded grooves, the outer frames are respectively fixedly connected with crimping pieces at a pair of opposite outer side faces and are suitable for being tightly pressed against the outer surfaces of the duct bodies, side clamping plates which extend outwards are arranged on the side faces perpendicular to the crimping pieces, and the outer frames are fixedly connected with clamping pieces at one side perpendicular to the crimping pieces and are suitable for limiting the adjacent side clamping plates so as to prevent the connected duct bodies from being pulled off. Preferably, the cross section of the inner frame is arc-shaped, the outer wall of the inner frame is a plane, the inner wall of the inner frame is a cambered surface, the thickness of the inner frame is gradually thinned from the middle to the two ends, and turbulence in the tank is reduced, so that flow resistance and noise are reduced. Preferably, the distance between the two ends of the inner frame is larger than the distance between the two ends of the outer frame, the thicknesses of the materials at the two ends of the inner frame are zero, and the gas can smoothly pass through the inner wall of the inner frame. Preferably, the bridge member has insertion plates in opposite embedded grooves, the two embedded edges are located at symmetrical sides of the end of the pipe body, and the end of the pipe body has a yielding groove located between the two embedded edges, and the yielding groove is suitable for being engaged with the insertion plates, so that the engagement degree of the connecting surface is further improved. Preferably, the end of the pipe body is provided with an end hanging edge which is transited from the embedded edge to the yielding groove, the end face of the end hanging edge is flush with the end face of the embedded edge, and the end hanging edge is suitable for being embedded into the embedded groove part parallel to the inserting plate, so that the frame deformation capability of the end of the pipe body is improved. Preferably, the side clamping plates are located on the edges of the abdication grooves, and are formed by cutting and stamping materials at the abdication grooves, so that the side clamping plates are simple in processing and good in material uniformity and stability. As one preferable mode, the crimping piece comprises a buckling plate, a pair of pressing plates are arranged on the same side of the buckling plate and are suitable for being respectively attached to the front end face and the rear end face of the outer frame, a first blind hole is formed in the outer side face of the outer frame, a first through hole corresponding to the first blind hole is formed in the buckling plate, the buckling plate is fixedly connected with the outer frame thro