A detachable high-tower overpressure fan soft connection structure

Abstract

The utility model belongs to port hoisting equipment technical field relates to an easily dismountable high tower crane overpressure fan soft connection structure, including overpressure fan, air duct, soft connection cloth and pipe clamp, the lower part of overpressure fan is connected with air duct, its characterized in that: still include flange and limit ring, the upper and lower ends of soft connection cloth are all packed with flange through pipe clamp, and soft connection cloth is connected on overpressure fan through flange, and the outer side soft connection cloth of each pipe clamp is provided with limit ring. The utility model structure design scientific and reasonable, and the overall structure only increases limit ring and pipe clamp cooperation on the basis of traditional soft connection, and the number of parts is less, and the processing difficulty is low, and it is convenient for industrial production and batch application, and it is a kind of high tower crane overpressure fan soft connection structure with higher innovation.

Description

Technical Field

[0001] This utility model belongs to the technical field of port hoisting equipment and relates to a connection structure, specifically a flexible connection structure for an easily detachable high tower crane overpressure fan. Background Technology

[0002] As a core high-efficiency production equipment for cargo handling in ports, tower cranes rely on hydraulic systems for key operations such as lifting, luffing, and slewing. The stable operation of the hydraulic system directly determines the operating efficiency and safety of the tower crane. To ensure the performance of the hydraulic system, a dustproof zone and an overpressure fan must be installed outside the hydraulic chamber. The dustproof zone filters dust and impurities from the outside air through filter bags to prevent contaminants from entering the hydraulic chamber and causing hydraulic oil contamination and component wear. The overpressure fan maintains the pressure balance between the inside and outside of the hydraulic chamber by regulating the air discharge, preventing backflow of humid air and corrosive gases from the outside.

[0003] The existing flexible connection structure between the overpressure fan and the dustproof area (or hydraulic chamber duct) of high tower cranes has obvious defects: First, the flexible connection material is generally ordinary canvas. In the high salt spray and high humidity environment of coastal ports, the canvas is easily corroded by seawater, aging and breaking. This allows rainwater and salt spray to enter the filtration area through the damaged area, and then penetrate into the hydraulic chamber, causing corrosion of hydraulic components and failure of the hydraulic system. Second, the connection method uses upper and lower flange bolts for fixing. When the flexible connection is damaged and needs to be replaced, the fixing bolts of the overpressure fan must be removed first, the flange must be removed, and then the flexible connection must be disassembled. After long-term use, the bolts are prone to jamming due to salt spray corrosion. Moreover, the internal operating space of high tower crane equipment is small, and the disassembly process is time-consuming and laborious, which seriously affects maintenance efficiency and increases equipment downtime costs.

[0004] Chinese utility model patent CN213743488U discloses a flexible connection structure between air ducts. It connects two air ducts using a flexible fabric, a first clamp, and a second clamp, replacing the traditional flange bolt connection with a clamp-locking connection, thus solving the problem of ease of assembly and disassembly to some extent. However, this patent has a key drawback when applied to high-tower crane overpressure fans: the overpressure fan generates continuous vibration during operation, which is transmitted to the clamp, causing axial displacement of the clamp on the flexible fabric surface. This leads to the flexible fabric detaching from the clamp's clamping range, compromising the connection's sealing performance and failing to meet the long-term stable sealing requirements of high-tower crane hydraulic systems.

[0005] In summary, existing technologies cannot simultaneously meet the three core requirements of flexible connections for high-tower crane overpressure fans: convenient assembly and disassembly, corrosion resistance, and vibration and displacement prevention. There is an urgent need for a new type of flexible connection structure to solve these problems. Summary of the Invention

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a flexible connection structure for high tower crane overpressure fans that is easy to assemble and disassemble, reliable in connection, and easy to implement.

[0007] The technical problem solved by this utility model is achieved through the following technical solution: A flexible connection structure for an easily detachable high-tower crane overpressure fan includes an overpressure fan, a duct, a flexible connection cloth, and pipe clamps. The overpressure fan is connected to the lower part of the duct. The structure is characterized by further including flanges and limiting rings. Flanges are wrapped around both the upper and lower ends of the flexible connection cloth through pipe clamps. The flexible connection cloth is connected to the overpressure fan through the flanges. Limiting rings are provided on the flexible connection cloth on the outer side of each pipe clamp.

[0008] Moreover, the flexible connecting fabric is a cylindrical structure, with inward folding at both the upper and lower ends of the cylindrical structure to form a through-ring channel, and the limiting ring is inserted into the through-ring channel.

[0009] Moreover, the thickness of the limiting ring is greater than the thickness of the pipe clamp band.

[0010] Moreover, the flexible connecting cloth is made of silicone canvas.

[0011] The advantages and positive effects of this utility model are: 1. This easy-to-disassemble high tower crane overpressure fan flexible connection structure, the flexible connection cloth and flange are clamped and fixed by pipe clamps. When disassembling, there is no need to disassemble the overpressure fan or air duct. Just loosen the pipe clamps to remove the damaged flexible connection cloth, which greatly simplifies the disassembly and assembly process, reduces maintenance difficulty, and reduces equipment downtime. The setting of the limit ring can effectively limit the axial displacement of the flexible connection cloth, prevent the flexible connection cloth from detaching from the pipe clamp due to the vibration of the overpressure fan, ensure the long-term stable fit between the flexible connection cloth and the flange, and guarantee the sealing effect. 2. This easy-to-disassemble high tower crane overpressure fan flexible connection structure uses silicone canvas material for the flexible connection cloth, which significantly improves salt spray resistance and aging resistance compared to traditional ordinary canvas, extending the service life of the flexible connection structure and reducing equipment maintenance costs. 3. The structure of this utility model is scientific and reasonable. The overall structure only adds a limiting ring and pipe clamp to the traditional soft connection. The number of parts is small and the processing difficulty is low, which facilitates industrial production and mass application. It is a highly innovative soft connection structure for high tower crane overpressure fans. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the flange of this utility model; Figure 3 This is a schematic diagram of the pipe clamp of this utility model; Figure 4 This is a cross-sectional view of the flexible connecting fabric of this utility model.

[0013] Explanation of reference numerals in the attached figures 1-Rainproof cover, 2-Air duct, 3-Overpressure fan, 4-Flange, 5-Flexible connecting cloth, 6-Pipe clamp, 7-Limit ring. Detailed Implementation

[0014] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings: A flexible connection structure for an easily detachable high-tower crane overpressure fan includes an overpressure fan 3, a duct 2, a flexible connection cloth 5, and a pipe clamp 6. The lower part of the duct is correspondingly set with the upper air outlet of the overpressure fan to facilitate airflow. A rain cover 1 is installed on the top of the duct. Its innovation lies in the inclusion of a flange 4 and a limiting ring 7. The flexible connection cloth is a cylindrical structure with openings at both ends, made of silicone canvas. Silicone canvas is lightweight and has good extensibility, which makes the manufacturing process of the flexible connection structure more convenient and quick. The material has good dustproof effect, which can better ensure the working environment of the filter chamber during the operation of the flexible connection cloth. The material is corrosion-resistant and acid and alkali-resistant, and has a longer service life under outdoor conditions.

[0015] Both ends of the flexible connecting cloth are fixed with flanges by pipe clamps: the inner diameter of the flange is adapted to the inner diameter of the flexible connecting cloth, the end of the flexible connecting cloth is sleeved on the outer side wall of the flange, and the pipe clamp is clamped at the joint between the flexible connecting cloth and the flange, so as to realize the detachable fixing of the flexible connecting cloth and the flange. The flexible connecting cloth is connected to the upper overpressure fan and the lower filter chamber respectively through flanges: bolt holes are opened on the flanges, and bolts pass through the bolt holes of the flanges and are threadedly engaged with the connecting flanges of the overpressure fan and the filter chamber to fix the flexible connecting structure to the main body of the equipment. A limiting ring is provided on the flexible connecting cloth on the outer side of each of the pipe clamps (i.e., the side away from the center of the flange): the end of the flexible connecting cloth is folded inward at the outer position of the pipe clamp to form a closed loop channel, and the limiting ring is installed in the loop channel; the thickness of the limiting ring is greater than the thickness of the pipe clamp band, and the inner diameter of the limiting ring is smaller than the outer diameter of the pipe clamp, which is used to prevent the flexible connecting cloth from displacing away from the flange and to prevent the flexible connecting cloth from detaching from the joint between the pipe clamp and the flange due to the vibration of the overpressure fan.

[0016] The cross-section of the limiting ring is rectangular or circular, with attachment Figure 4 The diagram illustrates a limiting ring with a circular cross-section.

[0017] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A flexible connection structure for an easily detachable high-tower crane overpressure fan, comprising an overpressure fan, a duct, a flexible connection cloth, and pipe clamps, wherein the overpressure fan is connected to the lower part of the duct, characterized in that: It also includes flanges and limiting rings. Flanges are wrapped around both the upper and lower ends of the flexible connecting cloth with pipe clamps. The flexible connecting cloth is connected to the overpressure blower through the flanges. Limiting rings are provided on the flexible connecting cloth on the outside of each pipe clamp.

2. The detachable soft connection structure of the high-tower overpressure fan according to claim 1, characterized in that: The flexible connecting fabric is a cylindrical structure, with inward folding at both the upper and lower ends of the cylindrical structure to form a through-ring channel, and the limiting ring is inserted into the through-ring channel.

3. The detachable soft connection structure of the high-tower overpressure fan according to claim 1, characterized in that: The thickness of the limiting ring is greater than the thickness of the pipe clamp band.

4. The easily dismountable soft connection structure of the overpressure fan of the high tower crane according to claim 1, characterized in that: The flexible connecting fabric is silicone canvas.

Images