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CN-121375857-B - Integrated telescopic cylinder railing mechanism, system and control method

CN121375857BCN 121375857 BCN121375857 BCN 121375857BCN-121375857-B

Abstract

The invention provides an integrated telescopic cylinder rail mechanism, a system and a control method, which relate to the technical field of safety protection of rail transit platforms, wherein the integrated telescopic cylinder rail mechanism comprises a driving cylinder, a transverse rail, a floating plate, a gas supply device and a plurality of multi-stage telescopic cylinders, the multi-stage telescopic cylinders comprise a first rail, a second rail and a third rail, the lower end of the first railing is arranged in the underground tank through the fixed base, the outer wall of the upper end of the first railing is fixedly connected with the floating plate, the upper end of the third railing is connected with the lower surface of the transverse railing, the driving cylinder is arranged on the fixed base, the output end of the driving cylinder is connected with the lower surface of the floating plate, and the output end of the air supply device is respectively connected with the driving cylinder and the multistage telescopic cylinder. According to the invention, the multi-stage telescopic cylinder adopts the coaxial nested structure design of the first railing, the second railing and the third railing, so that the contraction state length of the multi-stage telescopic cylinder can be greatly shortened, the depth of the underground deep hole is reduced during installation, and the construction efficiency is improved.

Inventors

  • ZENG YUQIAO
  • ZENG YULU

Assignees

  • 成都数字博览科技有限公司

Dates

Publication Date
20260512
Application Date
20251118

Claims (8)

  1. 1. The integrated telescopic cylinder rail mechanism is characterized by comprising a driving cylinder (1), a transverse rail (2), a floating plate (3), an air supply device and a plurality of multistage telescopic cylinders (4), wherein the multistage telescopic cylinders (4) comprise a first rail (5), a second rail (6) and a third rail (7) which are coaxially arranged, the lower end of the first rail (5) is arranged in an underground tank (8) through a fixed base, the outer wall of the upper end of the first rail (5) is fixedly connected with the floating plate (3), the second rail (6) is slidably arranged in the first rail (5), the third rail (7) is slidably arranged in the second rail (6), the upper end of the third rail (7) is connected with the lower surface of the transverse rail (2), the driving cylinder (1) is arranged on the fixed base, the output end of the driving cylinder (1) is connected with the lower surface of the floating plate (3), the air supply device is arranged in the underground tank (8), and the output end of the air supply device is respectively connected with the driving cylinder (1) and the multistage telescopic cylinders (4); A sealing assembly is arranged between the third railing (7) and the second railing (6), the sealing assembly comprises a fixed ring (9) and a protective sleeve (10), the fixed ring (9) is arranged on the periphery of the upper end of the third railing (7), a lower pressing ring (11) is arranged at the bottom of the fixed ring (9), the protective sleeve (10) is sleeved outside the third railing (7), and the lower end of the protective sleeve (10) is connected with the upper surface of the second railing (6); Set up a plurality of slide holes (14) in protective sheath (10), a plurality of slide holes (14) are annular array distribution about protective sheath (10) axis, slide hole (14) are close to the lower extreme outside and set up sliding chamber (15), sliding chamber (15) are located protective sheath (10), sliding chamber (15) inboard and slide hole (14) intercommunication, sliding hole (14) are slided and are set up piston rod (16), piston rod (16) outside sets up piston ring (17), piston rod (16) and sliding chamber (15) inner wall sliding connection from top to bottom, first spring (18) are established to piston rod (16) outside cover, first spring (18) upper end is connected with piston ring (17) lower surface, first spring (18) lower extreme is connected with sliding chamber (15) diapire, piston rod (16) upper end sets up first inclined plane (19), piston rod (16) are close to third railing (7) one side height is kept away from to piston rod (16), lower clamping ring (11) bottom sets up second inclined plane (20) with first inclined plane (19) looks adaptation.
  2. 2. The integrated telescopic cylinder rail mechanism according to claim 1, wherein a sealing gap (12) is arranged between the lower compression ring (11) and the outer wall of the third rail (7), a sealing sleeve (13) is sleeved outside the third rail (7), the lower end of the sealing sleeve (13) is connected with the upper end of the protective sleeve (10), and the sealing sleeve (13) is matched with the sealing gap (12).
  3. 3. The integrated telescopic cylinder rail mechanism according to claim 1, wherein an annular liquid storage cavity (21) is arranged in the protective sleeve (10), the annular liquid storage cavity (21) is located below the sliding hole (14), the annular liquid storage cavity (21) is communicated with the inside of the sliding cavity (15) through a liquid supply pipe (22), a liquid inlet cavity (23) is arranged at the position, close to the lower end, of the piston rod (16), a liquid inlet hole (24) is formed in the side wall of the piston rod (16), the liquid inlet cavity (23) is communicated with the sliding cavity (15) through the liquid inlet hole (24), the diameter of the liquid inlet hole (24) is larger than that of the liquid supply pipe (22), a first flow passage (25) is vertically arranged in the piston rod (16), one end of the first flow passage (25) is communicated with the liquid inlet cavity (23), the other end of the first flow passage (25) penetrates through the upper end of the piston rod (16), and a one-way valve (26) is arranged at the lower end of the first flow passage (25).
  4. 4. The integrated telescopic cylinder rail mechanism according to claim 3, wherein a liquid outlet column (27) is arranged in the first runner (25) in a vertically sliding manner, a plurality of liquid outlet holes (28) are formed in the side wall of the upper end of the liquid outlet column (27), a second runner (29) is vertically arranged in the liquid outlet column (27), the lower end of the second runner (29) is communicated with the first runner (25), the upper end of the second runner (29) is communicated with the liquid outlet holes (28), a fixing plate (30) is arranged below the liquid outlet column (27), one end of the fixing plate (30) is connected with the inner wall of the first runner (25), and the fixing plate (30) is connected with the liquid outlet column (27) through a second spring (31).
  5. 5. An integrated telescopic cylinder rail mechanism according to claim 3, wherein the side wall of the protective sleeve (10) is provided with a fluid supplementing pipe (32), and one end of the fluid supplementing pipe (32) is communicated with the inside of the annular liquid storage cavity (21).
  6. 6. The integrated telescopic cylinder rail mechanism of claim 5, wherein the fluid replenishment pipe (32) is provided with a screw cap (33) at an end remote from the protective sheath (10).
  7. 7. An integrated telescopic cylinder rail system comprising an integrated telescopic cylinder rail mechanism according to any one of claims 1-6, and further comprising a PLC controller, the PLC controller being connected to an air supply.
  8. 8. The control method of the integrated telescopic cylinder rail system is applied to the integrated telescopic cylinder rail system according to claim 7 and is characterized by comprising the following steps that a PLC controls an air supply device to supply air to a driving cylinder (1), the output end of the driving cylinder (1) stretches out upwards and drives a floating plate (3), a telescopic multi-stage telescopic cylinder (4) and a rail rod (2) to lift until the floating plate (3) is flush with the ground, and the PLC controls the air supply device to supply air to the telescopic multi-stage cylinder (4), and a second rail (6) and a third rail (7) stretch out, so that the transverse rail (2) is lifted to a preset height.

Description

Integrated telescopic cylinder railing mechanism, system and control method Technical Field The invention relates to the technical field of safety protection of rail transit platforms, in particular to an integrated telescopic cylinder rail mechanism, an integrated telescopic cylinder rail system and a control method. Background In the operation process of a high-speed railway platform, the foundation pit edge protection is a key link for guaranteeing the safety of passengers, and the lifting type protection railing is widely applied because of flexible switching between a protection state and a passing state. The application provides a lifting platform door, which comprises a plurality of embedded boxes buried underground at intervals and a driving device arranged in the embedded boxes, wherein the driving device is in transmission connection with telescopic upright posts vertically arranged in the embedded boxes, a door body is fixedly connected between the adjacent telescopic upright posts, a yielding groove is formed in the adjacent side of the embedded boxes, the size of the yielding groove is matched with the size of the door body, and the door body can be opened and closed as required through the driving device and the telescopic upright posts, so that passengers can get on or off conveniently. In order to improve the safety, the protection height of the lifting platform door is at least 1200mm, and the lifting platform door relies on an independent telescopic upright post to realize lifting, so that a deep hole exceeding 1500mm needs to be additionally drilled in the ground to accommodate the telescopic upright post during installation, the construction efficiency is extremely low due to narrow space of the platform, soil bodies are easy to disturb or lower pipelines and structures are easy to damage, the lower pipelines are damaged or structurally damaged, and potential safety hazards and construction period delay are caused. Disclosure of Invention The invention provides an integrated telescopic cylinder railing mechanism, an integrated telescopic cylinder railing system and a control method, which are used for solving the technical problems that deep holes are required to be additionally drilled in the ground when a telescopic upright post is installed at present, the telescopic cylinder railing mechanism is limited by the narrow underground space of a platform, and the construction efficiency is extremely low. In order to solve the technical problems, the invention discloses an integrated telescopic cylinder rail mechanism which comprises a driving cylinder, a transverse rail, a floating plate, an air supply device and a plurality of multi-stage telescopic cylinders, wherein the multi-stage telescopic cylinders comprise a first rail, a second rail and a third rail which are coaxially arranged, the lower end of the first rail is arranged in an underground groove through a fixed base, the outer wall of the upper end of the first rail is fixedly connected with the floating plate, the second rail is arranged in the first rail in a sliding manner, the third rail is arranged in the second rail in a sliding manner, the upper end of the third rail is connected with the lower surface of the transverse rail, the driving cylinder is arranged on the fixed base, the output end of the driving cylinder is connected with the lower surface of the floating plate, the air supply device is arranged in the underground groove, and the output end of the air supply device is respectively connected with the driving cylinder and the multi-stage telescopic cylinders. Preferably, set up seal assembly between third railing and the second railing, seal assembly includes solid fixed ring and protective sheath, gu fixed ring sets up in third railing upper end periphery, gu fixed ring bottom sets up down the clamping ring, and the protective sheath cover is established outside the third railing, and the protective sheath lower extreme is connected with second railing upper surface. Preferably, a sealing gap is arranged between the lower pressing ring and the outer wall of the third railing, a sealing sleeve is sleeved outside the third railing, the lower end of the sealing sleeve is connected with the upper end of the protective sleeve, and the sealing sleeve is matched with the sealing gap. Preferably, a plurality of sliding holes are formed in the protective sleeve, the sliding holes are distributed in an annular array mode relative to the central axis of the protective sleeve, the sliding holes are close to the outer side of the lower end, a sliding cavity is formed in the protective sleeve, the inner side of the sliding cavity is communicated with the sliding holes, a piston rod is arranged in the sliding holes in a sliding mode, a piston ring is arranged outside the piston rod and is connected with the inner wall of the sliding cavity in a sliding mode, a first spring is sleeved outside the piston rod, the upper end of the