A new type of wind valve blade
By improving the structure of the damper blades and adopting a single-layer blade and sealing gasket design, the damper blades have achieved multi-functional applicability, solving the problem of insufficient applicability in existing technologies and reducing production and design costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KAITAI ENGINEERING CO LTD
- Filing Date
- 2025-07-12
- Publication Date
- 2026-06-05
AI Technical Summary
The existing damper blades have poor applicability and are difficult to accommodate multiple functional requirements, resulting in repeated production and increased production costs.
A novel type of air valve blade is designed, which adopts a centrally symmetrical single-layer blade and sealing gasket structure. It is connected by rivets and installed by a rotating shaft, which enables convenient disassembly and replacement of the sealing gasket and improves compatibility.
It improves the compatibility of the damper blades, reduces redundant production and design costs, and is easy to install and operate stably.
Smart Images
Figure CN224326706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air valve technology, and more specifically, to a novel air valve blade. Background Technology
[0002] Air valves, based on the ISO 15138-2018 standard, are devices used for ventilation and air conditioning in offshore production facilities in the oil and gas industry. Air valves function as fire prevention, sealing, pressure relief, and flue gas control. The valve blades are the key components for the valve's sealing and opening; their structure significantly impacts the valve's sealing performance. Air valve blades typically employ a split design, and sealing gaskets are usually installed at the blade meshing points. The interlocking of the blades ensures the valve's on / off state.
[0003] In practical use, in order to achieve functions such as fire prevention, sealing, pressure release and smoke control, different types of damper blades need to be selected. Sometimes, different blades are needed to complete the same function, and the applicability of damper blades is poor. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a new type of air valve blade.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel air valve blade, comprising centrally symmetrically distributed single-layer blades, with centrally symmetrically distributed sealing gaskets abutting between two single-layer blades, and a plurality of equidistantly distributed second rivets installed between the two single-layer blades. A rotating shaft is fixedly installed on both sides of each single-layer blade, and symmetrically distributed mounting grooves are provided on the rotating shaft. A first rivet is fixedly connected between the rotating shaft and the single-layer blade, and the first rivet is adapted to the mounting groove. A fixing plate is fixedly connected to the side of each of the two single-layer blades that is far apart from each other by rivets.
[0006] As a preferred technical solution of this utility model: the top of the sealing gasket is provided with a plurality of equidistantly distributed rivet holes, and the rivet holes are adapted to the rivets.
[0007] As a preferred technical solution of this utility model: multiple equidistant positioning grooves are provided on the side of the two sealing gaskets that are close to each other. The number of positioning grooves is the same as the number of second rivets, and the positioning grooves are adapted to the second rivets.
[0008] As a preferred technical solution of this utility model: a plurality of equally spaced protrusions are fixedly connected to one of the sealing gaskets, and the protrusions and the sealing gasket are an integral structure.
[0009] As a preferred technical solution of this utility model: another sealing gasket has multiple sets of equally spaced grooves, and the grooves are adapted to the protrusions.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] In this invention, the damper blade comprises a single-layer blade formed by bending sheet metal. A sealing gasket is pressed between two single-layer blades to ensure that the two single layers are tightly compressed and that there is no air leakage at the joint with the sealing gasket. Then, a second rivet is used for connection. Finally, a rotating shaft is installed in the middle of the blade for easy installation and disassembly. It is also convenient to install sealing gaskets of different materials. Through the improvement of the blade structure, this blade can be compatible with various operating environments. The same blade can meet all functions by changing the sealing strip, which improves the compatibility of the damper, reduces repeated production, and saves production costs and damper design costs. In actual use, it is easy to install and operates stably. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the installation of the rotating shaft in this utility model;
[0014] Figure 3 In this utility model Figure 1 Enlarged view of point A;
[0015] Figure 4 This is a schematic diagram of the sealing gasket structure of this utility model.
[0016] In the diagram: 1. Single-layer blade; 2. Rotating shaft; 3. First rivet; 4. Mounting groove; 5. Second rivet; 6. Positioning groove; 7. Protrusion; 8. Fixing plate; 9. Sealing gasket; 10. Groove; 11. Rivet hole. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] like Figures 1 to 4As shown, this utility model provides a novel air valve blade, including centrally symmetrically distributed single-layer blades 1, with centrally symmetrically distributed sealing gaskets 9 abutting between two single-layer blades 1, and multiple equidistantly distributed second rivets 5 installed between two single-layer blades 1, with rotating shafts 2 fixedly installed on both sides of the single-layer blades 1, and symmetrically distributed mounting grooves 4 opened on the rotating shafts 2, with first rivets 3 fixedly connected between the rotating shafts 2 and the single-layer blades 1, and the first rivets 3 being adapted to the mounting grooves 4, and fixing plates 8 being fixedly connected to the sides of the two single-layer blades 1 that are far apart from each other by rivets.
[0019] The sealing gasket 9 is pressed together by two centrally symmetrically distributed single-layer blades 1 and connected and fixed by the second rivet 5, which facilitates installation and disassembly, makes it easy to replace the sealing gasket 9, and improves the compatibility of the air valve.
[0020] The top of the sealing gasket 9 has multiple equidistant rivet holes 11, and the rivet holes 11 are adapted to the rivets.
[0021] The rivet hole 11 facilitates the installation and positioning of the sealing gasket 9, and makes it easier for the subsequent fixing plate 8 to be fixed to the single-layer blade 1 through the rivet and rivet hole 11.
[0022] Among them, multiple equidistant positioning grooves 6 are provided on the side of the two sealing gaskets 9 that are close to each other. The number of positioning grooves 6 is the same as the number of second rivets 5, and the positioning grooves 6 are adapted to the second rivets 5. The positioning grooves 6 facilitate the positioning of the sealing gasket 9 during installation and prevent the sealing gasket 9 from shifting, which would cause damage to the sealing gasket 9 during the installation of the second rivets 5.
[0023] One of the sealing gaskets 9 has multiple sets of equidistantly distributed protrusions 7 fixedly connected to it, and the protrusions 7 and the sealing gasket 9 are an integral structure. The other sealing gasket 9 has multiple sets of equidistantly distributed grooves 10, and the grooves 10 are adapted to the protrusions 7. The protrusions 7 and the grooves 10 facilitate the fit between the two sealing gaskets 9, thereby improving the overall sealing performance.
[0024] Working principle and usage process of this utility model:
[0025] In this application, the damper blade includes a single-layer blade 1 formed by bending sheet metal. A sealing gasket 9 is pressed between two single-layer blades 1 to ensure that the two single layers are tightly pressed together and that there is no air leakage at the joint with the sealing gasket 9. Then, a second rivet 5 is used for connection. The sealing gasket 9 is fixed to the single-layer blade 1 by a fixing plate 8, rivet holes 11 and rivets. Finally, a rotating shaft 2 is installed in the middle of the blade to facilitate installation and disassembly. It is convenient to install sealing gaskets 9 of different materials. Through the improvement of the blade structure, this blade can be compatible with a variety of operating environments. The same blade can meet all functions by changing the sealing strip, which improves the compatibility of the damper, reduces repeated production, and saves production costs and damper design costs. In actual use, it is easy to install and operates stably.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A novel air valve blade, comprising a single layer of blades symmetrically distributed at the center (1), characterized in that: A centrally symmetrically distributed sealing gasket (9) is abutted between the two single-layer blades (1). A plurality of equally spaced second rivets (5) are installed between the two single-layer blades (1). A rotating shaft (2) is fixedly installed on both sides of the single-layer blade (1). A symmetrically distributed mounting groove (4) is opened on the rotating shaft (2). A first rivet (3) is fixedly connected between the rotating shaft (2) and the single-layer blade (1). The first rivet (3) is adapted to the mounting groove (4). A fixing plate (8) is fixedly connected to the two single-layer blades (1) on the side that is far away from each other by rivets.
2. The novel air valve blade according to claim 1, characterized in that: The top of the sealing gasket (9) has a plurality of equidistantly distributed rivet holes (11), and the rivet holes (11) are adapted to the rivets.
3. The novel air valve blade according to claim 1, characterized in that: On the side of each of the two sealing gaskets (9) that are close to each other, there are multiple equidistant positioning grooves (6). The number of positioning grooves (6) is the same as the number of second rivets (5), and the positioning grooves (6) are adapted to the second rivets (5).
4. The novel air valve blade according to claim 1, characterized in that: One of the sealing gaskets (9) has multiple sets of equally spaced protrusions (7) fixedly connected to it, and the protrusions (7) and the sealing gasket (9) are an integral structure.
5. The novel air valve blade according to claim 1, characterized in that: Another sealing gasket (9) has multiple sets of equally spaced grooves (10), and the grooves (10) are adapted to the protrusions (7).