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CN-121976505-A - Wall-penetrating sealing device of bottom shaft driven flap gate

CN121976505ACN 121976505 ACN121976505 ACN 121976505ACN-121976505-A

Abstract

The invention discloses a wall-penetrating sealing device of a bottom shaft driven flap gate, a wall-penetrating pipe is arranged on a riverbed base, the wall pipe is provided with a first sealing mechanism, a second sealing mechanism and a third sealing mechanism in sequence from the side of the river channel to the side of the hoist. The first sealing mechanism is arranged on the river channel side of the wall passing pipe, the second sealing mechanism is arranged on the opening and closing machine side of the wall passing pipe, and the third sealing mechanism is arranged on the opening and closing machine side of the second sealing mechanism. The third sealing mechanism is used as a supplementary sealing mechanism of the first sealing mechanism and the second sealing mechanism, and when the first two sealing mechanisms fail, the sealing effect can be ensured. Meanwhile, the third sealing mechanism is adjustable, so that the compression strength of the sealing element can be adjusted according to actual conditions, the sealing element is prevented from bearing high pressure for a long time, and the service life of the sealing element is prolonged.

Inventors

  • ZHAO LINGLING
  • XIN FENG

Assignees

  • 新河县黄河水利机械有限公司

Dates

Publication Date
20260505
Application Date
20260324

Claims (7)

  1. 1. A wall penetrating sealing device of a bottom shaft driven flap gate is characterized by comprising a wall penetrating pipe, wherein the wall penetrating pipe is arranged on a riverbed base, a first sealing mechanism, a second sealing mechanism and a third sealing mechanism are sequentially arranged on the wall penetrating pipe from the riverway side to the opening and closing machine side, the first sealing mechanism is arranged on the riverway side of the wall penetrating pipe, the second sealing mechanism is arranged on the opening and closing machine side of the wall penetrating pipe, the third sealing mechanism is arranged on the opening and closing machine side of the second sealing mechanism, a shaft sleeve is arranged on the inner wall of the wall penetrating pipe, the first sealing mechanism is located at the riverway end of the shaft sleeve, the second sealing mechanism is located at the opening and closing machine end of the shaft sleeve, the first sealing mechanism and the second sealing mechanism are respectively used for sealing the end part of a contact surface of the bottom shaft and the shaft sleeve, and the third sealing mechanism is used for sealing the opening and closing machine side end part of the contact surface of the bottom shaft and the second sealing mechanism, and the third sealing mechanism can be used for adjusting sealing strength.
  2. 2. The wall-penetrating sealing device of the bottom shaft-driven flap gate of claim 1, wherein the first sealing mechanism comprises a pressing ring and an h-shaped sealing ring, the h-shaped sealing ring is located on the inner wall of the pressing ring and is installed at the river end of the wall-penetrating pipe, the inner wall of the pressing ring comprises an annular groove, the h-shaped sealing ring is partially embedded into the annular groove, and the h-shaped sealing ring is abutted against the river end of the shaft sleeve.
  3. 3. The wall-penetrating sealing device of the bottom shaft driven flap gate of claim 1, wherein the second sealing mechanism comprises a second pressing ring and an O-shaped sealing ring, the second pressing ring is arranged at the hoist end of the wall-penetrating pipe, and the O-shaped sealing ring is positioned on the inner wall of the wall-penetrating pipe and is abutted against the hoist end of the shaft sleeve.
  4. 4. The wall-penetrating sealing device of the bottom shaft driven flap gate of claim 3, wherein the third sealing mechanism comprises a sleeve, a third pressing ring and a second O-shaped sealing ring, the sleeve is arranged at the hoist end of the second pressing ring, the third pressing ring is in threaded connection with the sleeve and is abutted against the second O-shaped sealing ring, and the second O-shaped sealing ring is positioned on the inner wall of the sleeve and is abutted against the hoist end of the second pressing ring.
  5. 5. The wall-through sealing device of the bottom shaft driven flap gate of claim 4 wherein the third sealing mechanism further comprises a packing, wherein the packing is positioned on the inner wall of the sleeve, and two ends of the packing are respectively abutted against the third compression ring and the second O-shaped sealing ring.
  6. 6. The wall-through sealing device of the bottom shaft driven flap gate of claim 4, wherein the third compression ring and the flange of the sleeve are provided with bolt holes, and bolts are arranged in the bolt holes for circumferential limiting.
  7. 7. The wall-through sealing device for the bottom shaft driven flap gate of claim 1 wherein the bottom shaft is provided with a stainless steel ring at a contact portion with the shaft sleeve and the sealing mechanism.

Description

Wall-penetrating sealing device of bottom shaft driven flap gate Technical Field The invention relates to the technical field of water treatment equipment, in particular to a wall-penetrating sealing device of a bottom shaft driven flap gate. Background The bottom shaft driven flap gate is used as a novel hydraulic building, and is widely applied to hydraulic engineering such as urban flood control, river management, landscape water storage and the like due to the advantages of simple structure, flexible opening and closing, good landscape effect and the like. The gate adopts a structure that a bottom shaft is fixedly connected with a gate leaf, and the bottom shaft is driven to rotate by a hydraulic hoist, so that the gate leaf can be turned over and opened and closed. The wall-penetrating sealing device of the bottom shaft driven flap gate needs to realize reliable and long-term water stop between a dynamic shaft which is driven by rotation and bears the water retaining function and a static wall body. The existing through-wall sealing device often adopts a sealing mode with single-stage sealing or smaller contact area, and under the conditions of long-term rotation, stress and vibration of a bottom shaft, a sealing piece is easy to wear, so that a water seepage channel is formed between the shaft and a wall body. Once leakage occurs, accumulated water not only can influence the running environment of the gate hoist, but also can form leakage on the side of the hoist, thereby influencing the safety of equipment and the overall water sealing effect. Accordingly, the present invention improves upon existing through-wall seals to overcome the above-described problems. Disclosure of Invention In order to solve the technical problems, the invention provides a wall-penetrating sealing device of a bottom shaft driven flap gate, wherein three sealing mechanisms are arranged from the side of a river channel to the side of a hoist so as to provide stable sealing between the bottom shaft and a wall body. The wall penetrating sealing device of the bottom shaft driven flap gate comprises a wall penetrating pipe, wherein the wall penetrating pipe is arranged on a riverbed base, and a first sealing mechanism, a second sealing mechanism and a third sealing mechanism are sequentially arranged on the wall penetrating pipe from the riverway side to the opening and closing machine side. The first sealing mechanism is arranged on the river channel side of the wall passing pipe, the second sealing mechanism is arranged on the opening and closing machine side of the wall passing pipe, and the third sealing mechanism is arranged on the opening and closing machine side of the second sealing mechanism. The inner wall of the wall pipe is provided with a shaft sleeve which is used as a supporting part of the bottom shaft, and meanwhile, the bottom shaft and the wall pipe play a role in resisting abrasion, and the sealing mechanisms are positioned at two ends of the shaft sleeve. The first sealing mechanism is positioned at the river channel end of the shaft sleeve, the second sealing mechanism is positioned at the hoist end of the shaft sleeve, the first sealing mechanism and the second sealing mechanism are used for sealing the end part of the contact surface of the bottom shaft and the shaft sleeve respectively, and the third sealing mechanism is used for sealing the side end part of the hoist of the contact surface of the bottom shaft and the second sealing mechanism. The third sealing mechanism is used as a supplementary sealing mechanism of the first sealing mechanism and the second sealing mechanism, and when the first two sealing mechanisms fail, the sealing effect can be ensured. Meanwhile, the third sealing mechanism is adjustable, so that the compression strength of the sealing element can be adjusted according to actual conditions, the sealing element is prevented from bearing high pressure for a long time, and the service life of the sealing element is prolonged. Compared with the prior art, the invention has the beneficial effects that: The wall penetrating sealing device is provided with three sealing mechanisms from the side of the river channel to the side of the hoist, the third sealing mechanism is used as a supplementary sealing mechanism of the front two sealing mechanisms, the sealing effect between the bottom shaft and the wall penetrating pipe is improved, the third sealing mechanism is adjustable, the compression strength of the sealing element can be adjusted according to actual conditions, the sealing element is prevented from bearing high pressure for a long time, and the service life of the sealing element is prolonged. Drawings Fig. 1 is an overall construction diagram of a bottom shaft driven flap gate. FIG. 2 is a mating block diagram of the bottom shaft and wall penetrating seal. Fig. 3 is a partial enlarged view of the area a in fig. 2. Fig. 4 is a block diagram of a through-wall seal. Fig. 5 is a cr