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CN-224228705-U - Ventilating pipe for tunnel construction

CN224228705UCN 224228705 UCN224228705 UCN 224228705UCN-224228705-U

Abstract

The utility model discloses a ventilation pipe for tunnel construction, which relates to the technical field of ventilation pipes and comprises ventilation pipes, a connecting mechanism, an adjusting assembly, sealing rings and a sealing ring, wherein the connecting mechanism is arranged between two groups of ventilation pipes and fixedly connects the two groups of ventilation pipes through the connecting mechanism so as to ensure the stability and convenience in installation, the adjusting assembly is arranged on the circumference outer wall of the connecting mechanism and matched with the connecting mechanism and fixes the inner wall of the ventilation pipe through the adjusting assembly so as to ensure the stability of the pipeline, and the sealing rings are symmetrically arranged at two ends of the connecting mechanism and are used for sealing connection between the connecting mechanism and the ventilation pipes through the sealing rings so as to ensure the tightness of the pipeline. The utility model has reasonable and reliable structure, can quickly fix the ventilating duct, and reasonably arranges the installation space of the connecting mechanism according to the length of the ventilating duct, ensures the stability and bearing capacity of the whole structure, and improves the safety and convenience of installation.

Inventors

  • YU ANFEI
  • ZHANG YANG
  • ZHONG CHAO
  • LIU YONGFENG
  • YANG YANG

Assignees

  • 中铁北京工程局集团第二工程有限公司

Dates

Publication Date
20260512
Application Date
20250602

Claims (10)

  1. 1. A ventilation pipe for tunnel construction, comprising: A ventilation duct (1); The connecting mechanism (2) is arranged between the two groups of ventilation pipelines (1), and the two groups of ventilation pipelines (1) are fixedly connected through the connecting mechanism (2) so as to ensure the stability and convenience during installation; The adjusting assemblies (3) are arranged on the circumferential outer walls of the connecting mechanisms (2) and are matched with the connecting mechanisms (2), and the inner walls of the ventilating ducts (1) are fixed through the adjusting assemblies (3) so as to ensure the stability of the ducts; Sealing rings (4) are symmetrically arranged at two ends of the connecting mechanism (2), and the connecting mechanism (2) and the ventilating duct (1) are in sealing connection through the sealing rings (4) so as to ensure the tightness of the duct.
  2. 2. A ventilation pipe for tunnel construction according to claim 1, characterized in that the ventilation pipe (1) is provided in a telescopic structure to enable the housing and assembly of the ventilation pipe (1).
  3. 3. A tunnel construction ventilation pipe according to claim 1, characterized in that the connection mechanism (2) comprises a connection ring (201) arranged between two groups of ventilation pipes (1), a driving piece (202) is arranged on the circumferential side wall of the connection ring (201), two groups of driven pieces (203) are arranged on one side of the driving piece (202) and on the circumferential inner wall of the ventilation pipe (1) in a matched manner, and the two groups of driven pieces (203) perform opposite movements; the outer side of the driving piece (202) is provided with a ratchet piece (204) in a matching way.
  4. 4. A tunnel construction ventilation pipe according to claim 3, characterized in that the driving element (202) comprises a rotation shaft (2021) provided on the circumferential side wall of the connection ring (201), one end of the rotation shaft (2021) being provided with a bevel gear (2022) cooperating with the driven element (203); The other end of the rotating shaft (2021) is provided with a square head (2023).
  5. 5. The ventilation pipe for tunnel construction according to claim 4, wherein the follower (203) comprises a ring-shaped bevel gear (2031) provided on a circumferential inner wall of the ventilation pipe (1) and fitted with the bevel gear (2022), and a circumferential outer wall of the ring-shaped bevel gear (2031) is provided with a ring-shaped slider (2032); One end of the ring bevel gear (2031) is provided with a plurality of connecting blocks (2033) which are arranged in a circumferential manner, one end of each connecting block (2033) is provided with a ring plate (2034), and an adjusting assembly (3) is arranged between the ring bevel gear (2031) and the ring plates (2034).
  6. 6. The ventilation pipe for tunnel construction according to claim 5, wherein the adjusting component (3) comprises a connecting rod (301) arranged between the annular bevel gear (2031) and the annular plate (2034), a round hole (302) is formed in the middle of one side of the connecting rod (301), a limit post (303) is sleeved on the inner circumferential wall of the round hole (302), and movable rods (304) matched with the connecting ring (201) are symmetrically arranged on the outer circumferential wall of the limit post (303); a slot (305) is formed in one side of the top of the connecting rod (301), and an arc-shaped plate (306) is movably arranged in the slot (305).
  7. 7. The ventilation pipe for tunnel construction according to claim 1, wherein the sealing ring (4) comprises rubber ring bodies (401) symmetrically arranged at two ends of the connecting mechanism (2), a plurality of buffer blocks (402) which are arranged at equal intervals are arranged in the rubber ring bodies (401), and two opposite buffer blocks (402) are arranged in a staggered manner; The rubber ring body (401) is internally provided with a cavity (403) matched with the buffer block (402).
  8. 8. The ventilation pipe for tunnel construction according to claim 7, wherein the rubber ring body (401) is tapered, and the slope of the rubber ring body (401) is the same as the slope of the ventilation pipe (1) after being unfolded.
  9. 9. The ventilation pipe for tunnel construction according to claim 6, wherein an annular slide rail (2011) matched with the annular slide block (2032) is provided on the circumferential inner wall of the connecting ring (201); An arc-shaped groove (2012) matched with the arc-shaped plate (306) is formed in the circumferential outer wall of the connecting ring (201).
  10. 10. A tunnel construction ventilation pipe according to claim 3, characterized in that the circumferential outer wall of the connection ring (201) is provided with a number of catches (5).

Description

Ventilating pipe for tunnel construction Technical Field The utility model relates to the technical field of ventilation pipes, in particular to a ventilation pipe for tunnel construction. Background In the tunnel construction process, ensuring good ventilation conditions is important for guaranteeing the health and safety of workers. In the tunnel construction process, a ventilation system is one of key factors for ensuring the safety of working environment and improving the working efficiency. The ventilation pipe is used as a core component of the ventilation system and is mainly used for exhausting harmful gas in a hole and providing fresh air so as to ensure the health and safety of workers. In particular, in tunnel construction under long-distance and complex geological conditions, the requirements on ventilation pipes are more strict. The existing ventilation pipe for tunnel construction is designed by adopting threaded connection of bolts and nuts, so that connection between pipelines is more convenient, and the ventilation pipe can be flexibly adjusted according to the change of the height inside the tunnel so as to adapt to ventilation requirements under different working conditions. However, the conventional fixed type ventilating duct has great difficulty in working for workers in the actual handling and installation process due to its large volume and heavy weight, and reduces the overall construction efficiency. In addition, the fixed pipeline structure is difficult to quickly make corresponding adjustment when facing complex and changeable tunnel environments, and further limits the working efficiency. For the problems in the related art, no effective solution has been proposed at present. Disclosure of utility model Aiming at the problems in the related art, the utility model provides a ventilation pipe for tunnel construction, which aims to overcome the technical problems in the prior art. For this purpose, the utility model adopts the following specific technical scheme: The ventilation pipe for tunnel construction comprises ventilation pipes, a connecting mechanism, a plurality of adjusting components and sealing rings, wherein the connecting mechanism is arranged between two groups of ventilation pipes and fixedly connected with the two groups of ventilation pipes through the connecting mechanism so as to ensure stability and convenience in installation, the adjusting components are arranged on the circumferential outer walls of the connecting mechanism and matched with the connecting mechanism and fix the inner walls of the ventilation pipes through the adjusting components so as to ensure stability of the pipes, and the sealing rings are symmetrically arranged at two ends of the connecting mechanism and are in sealing connection with the connecting mechanism and the ventilation pipes through the sealing rings so as to ensure tightness of the pipes. Further, in order to adapt to different spatial layouts, the applicability and the installation efficiency of the lifting device are improved, and the ventilating duct is arranged in a telescopic structure so as to accommodate and assemble the ventilating duct. Further, in order to realize tight and stable connection between the ventilation pipelines and ensure normal ventilation of the ventilation pipelines and reliability of the whole structure, the connecting mechanism comprises a connecting ring arranged between two groups of ventilation pipelines, a driving piece is arranged on the circumferential side wall of the connecting ring, two groups of driven pieces are arranged on one side of the driving piece and on the circumferential inner wall of the ventilation pipeline in a matched mode, opposite movement is carried out between the two groups of driven pieces, and a ratchet piece is arranged on the outer side of the driving piece in a matched mode. The driving piece comprises a rotating shaft arranged on the circumferential side wall of the connecting ring, one end of the rotating shaft is provided with a bevel gear matched with the driven piece, and the other end of the rotating shaft is provided with a square head. The driven piece comprises an annular bevel gear which is arranged on the circumferential inner wall of the ventilating duct and matched with the bevel gear, an annular sliding block is arranged on the circumferential outer wall of the annular bevel gear, a plurality of connecting blocks which are arranged in a circumferential manner are arranged at one end of the annular bevel gear, an annular plate is arranged at one end of each connecting block, and an adjusting assembly is arranged between the annular bevel gear and the annular plate. Further, in order to ensure good fitting with the inner wall of the ventilating duct, the connecting effect and reliability of the connecting mechanism are improved, the adjusting assembly comprises a connecting rod arranged between the annular bevel gear and the annular plate, a round hole