Gas clamp observation window

Abstract

A gas clamp observation window relates to the technical field of bridge cable facilities, the gas clamp is cylindrical and comprises an upper gas clamp and a lower gas clamp, the upper gas clamp and / or the lower gas clamp are / is provided with an opening, the opening is provided with an observation window, the observation window comprises an observation window bottom plate, an observation window cover plate and laminated glass, the observation window bottom plate and the observation window cover plate are in a flat plate shape, and the laminated glass is arranged on the observation window bottom plate. An opening is formed in the middle area, a laminated glass groove is formed in the outer side of the opening of the observation window bottom plate, laminated glass is in a flat plate shape and located in the laminated glass groove, a certain number of screw holes distributed in the circumferential direction are formed in the outer side of the observation window bottom plate, and corresponding through holes are formed in the observation window cover plate. The observation window bottom plate and the observation window cover plate are fixed through a bolt, nut and gasket assembly. The observation window adopts a flat plate structure, and the shape of the flat plate glass is fixed and is not influenced by the curved surface of the gas clamp, so that the observation window can be universally used on the gas clamps with different diameters and shapes, and only the appropriate size of the flat plate glass needs to be selected according to the specific size of the gas clamp.

Description

Technical Field

[0001] This utility model relates to the field of bridge cable facilities technology, and in particular to an air-clamp observation window. Background Technology

[0002] The main cable is the main load-bearing component of a suspension bridge. It mainly bears tensile force and is generally made of high tensile strength steel (steel wire, steel cable, etc.).

[0003] Since the main cable cannot be replaced, its maintenance is crucial. Currently, establishing a dehumidification system is one of the commonly used main cable protection technologies: dry air is introduced into the gaps of the main cable to remove moisture. Air clips are an important component of the dehumidification system, and they are usually equipped with observation windows.

[0004] Existing observation windows all adopt curved / arc structures. For example, the patent with authorization announcement number "CN203878482U" and title "An air clamp for bridge cables that facilitates air intake, exhaust and maintenance" has a structure including two semi-circular arc shells (1), which are joined together to form a cylinder. Each of the two semi-circular arc shells (1) has an arc-shaped observation window (2), and an arc-shaped transparent glass connected to the semi-circular arc shell (1) is embedded in the arc-shaped observation window (2). The problems with the curved / arc structure of the observation window are: 1. Since the curvature of the curved glass needs to be precisely matched with the curvature of the air clamp, the versatility between curved glass with different curvatures is poor. Once the specifications of the air clamp change, the original curved glass may no longer be usable and needs to be remade. In addition, the sealing plate used to fix curved glass also needs to be specially customized according to its curvature, which limits its versatility; 2. When installing curved glass, if its curvature does not match the curvature of the air clamp, or if the curvature of the sealing plate is inconsistent with the curved glass, it will affect the sealing performance and easily lead to uneven stress on the glass. Under the action of internal pressure of the air clamp or external impact, this uneven stress may cause the glass to crack or even break, posing a hidden danger to the protective function of the air clamp, and also posing a safety hazard to operators and the surrounding environment; 3. Ordinary glass has poor impact resistance and penetration resistance. After breaking, it is easy to form sharp fragments, which may cause injury to vehicles and people crossing the bridge, resulting in insufficient safety. In addition, ordinary glass has poor heat insulation performance, ultraviolet blocking performance, and sound insulation performance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an air clamp observation window. It adopts a flat plate structure, and the shape of the flat glass is fixed and is not affected by the curvature of the air clamp. Therefore, it can be used with air clamps of different diameters and shapes. It is only necessary to select the appropriate flat glass size according to the specific size of the air clamp.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An air-clamp observation window is disclosed. The air clamp is cylindrical and includes an upper air clamp and a lower air clamp. An opening is provided on the upper and / or lower air clamps, and an observation window is provided at the opening. The observation window includes an observation window base plate, an observation window cover plate, and laminated glass. The observation window base plate is fixed to the opening of the air clamp. The observation window base plate and the observation window cover plate are flat, with an opening in the middle area. A laminated glass groove is provided on the outer side of the opening on the observation window base plate. The laminated glass is flat and located within the laminated glass groove. A certain number of circumferentially distributed screw holes are provided on the outer side of the observation window base plate, and the observation window cover plate has corresponding through holes. The observation window base plate and the observation window cover plate are fixed by a certain number of bolt, nut, and washer assemblies. The upper and lower air clamps are semi-cylindrical and made of stainless steel. The upper and lower air clamps are assembled into a cylindrical air clamp by bolts, nuts, or other fixing structures. The observation window base plate and the observation window cover plate clamp and seal the laminated glass from both inside and outside.

[0008] Preferably, the laminated glass is PVB laminated glass. It has good transparency, maintaining a clear visual effect; excellent bonding performance, ensuring a strong bond between the glass and the interlayer, making it difficult to separate; strong impact resistance, effectively resisting external impacts; even if the glass breaks, the fragments will adhere to the interlayer, preventing them from flying and causing injury or falling; and certain heat insulation, UV protection, and sound insulation properties, reducing the transmission of heat, ultraviolet rays, and noise to a certain extent.

[0009] Preferably, the bottom plate of the observation window is fixed to the air clamp by welding.

[0010] The advantages of this utility model are as follows: 1. The observation window adopts a flat plate structure, and the shape of the flat glass is fixed and not affected by the curved surface of the air clamp. Therefore, it can be used with air clamps of different diameters and shapes. Only the appropriate flat glass size needs to be selected according to the specific size of the air clamp, which improves its versatility. In addition, the sealing plate of the flat glass can adopt a universal design, which only needs to be adjusted appropriately according to the size of the glass, further improving its versatility.

[0011] 2. Flat glass is relatively simple to install, and the stress is relatively even, making it less likely to break due to installation problems, and it has good sealing performance.

[0012] 3. Laminated glass has relatively high strength and good impact and penetration resistance. When subjected to the same external force, it is less likely to break. Even if the glass breaks, the fragments will be held together by the interlayer and will not fly and injure people, thus reducing safety hazards.

[0013] 4. Laminated glass has good heat insulation, UV protection, and sound insulation properties, which can reduce the transmission of heat, ultraviolet rays, and noise to a certain extent. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the base of this utility model;

[0015] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0016] Explanation of key component symbols in the diagram:

[0017] 11. Air clamp;

[0018] 21. Observation window bottom plate; 21.1. Laminated glass groove; 22. Observation window cover plate; 23. Laminated glass; 24. Bolt, nut and washer assembly. Detailed Implementation

[0019] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0020] Example 1: As Figure 1-2 As shown, an air clamp observation window is provided. The air clamp 11 is cylindrical and includes an upper air clamp and a lower air clamp. An opening is provided on the upper air clamp and / or the lower air clamp, and an observation window is provided at the opening. The observation window includes an observation window base plate 21, an observation window cover plate 22, and laminated glass 23. The observation window base plate 21 is fixed at the opening of the air clamp 11. The observation window base plate 21 and the observation window cover plate 22 are flat and have an opening in the middle area. A laminated glass groove 21.1 is provided on the outside of the opening of the observation window base plate 21. The laminated glass 23 is flat and located in the laminated glass groove 21.1. A certain number of circumferentially distributed screw holes are provided on the outside of the observation window base plate 21. The observation window cover plate 22 is provided with corresponding through holes. The observation window base plate 21 and the observation window cover plate 22 are fixed by a certain number of bolt, nut and washer assemblies 24.

[0021] Example 2: Combination Figure 2 As shown, based on Embodiment 1, the laminated glass 23 is PVB laminated glass, and the bottom plate 21 of the observation window is fixed to the air clamp 11 by welding.

[0022] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. The present utility model can be used in similar products. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An air clamp view window, an air clamp (11) is cylindrical, including an upper air clamp and a lower air clamp, characterized in that: The upper and / or lower air clamps are provided with openings, and observation windows are provided at the openings; The observation window includes an observation window base plate (21), an observation window cover plate (22), and laminated glass (23). The observation window base plate (21) is fixed at the opening of the air clamp (11). The observation window base plate (21) and the observation window cover plate (22) are flat and have an opening in the middle area. A laminated glass groove (21.1) is provided on the outside of the opening of the observation window base plate (21). The laminated glass (23) is flat and located in the laminated glass groove (21.1). A certain number of circumferentially distributed screw holes are provided on the outside of the observation window base plate (21). The observation window cover plate (22) is provided with corresponding through holes. The observation window base plate (21) and the observation window cover plate (22) are fixed by a certain number of bolt, nut, and washer assemblies (24).

2. An air clamp viewing window according to claim 1, wherein: The laminated glass (23) is PVB laminated glass.

3. An air clamp viewing window according to claim 1, wherein: The bottom plate (21) of the observation window is fixed to the air clamp (11) by welding.

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