Embedded blade and valve thereof

Abstract

The utility model provides a kind of embedded blade and its valve, blade includes first metal sheet, second metal sheet, the accommodating space of accommodating rotating shaft is formed between first metal sheet, second metal sheet, the edge of first metal sheet parallel to rotating shaft forms first bending edge, the edge of second metal sheet parallel to rotating shaft forms second bending edge, first bending edge, second bending edge are symmetrically arranged with the axis of rotating shaft as symmetry center. Above-mentioned embedded blade and its valve, first metal sheet, second metal sheet of metal material, can be formed by stamping process etc., directly form first bending edge, second bending edge, processing precision is high, simple structure, blade overall weight is light, sealing fit effect is good;When the blade is used for valve, sealing baffle setting can be inlaid with first bending edge or second bending edge and form the bending baffle of sealing, when valve is in closed state, guarantee the overall sealing property of valve.

Description

Technical Field

[0001] This utility model relates to an embedded blade and its valve. Background Technology

[0002] Existing ventilation valves suffer from serious deficiencies and defects in the design of their blades and baffles. The connections between blades are often not tight enough, leaving noticeable gaps that facilitate gas leakage, leading to persistently high leakage rates and severely impacting the overall efficiency and energy-saving performance of the ventilation system. The shape and structure of the baffles are also not ideally designed, failing to achieve effective coordination with the blades and further weakening the valve's sealing performance. This significantly reduces the performance of the ventilation system, making it unable to meet the high requirements of practical applications.

[0003] These problems not only severely limit the further improvement of ventilation system performance, but also bring numerous inconveniences and incalculable economic losses to users. Therefore, developing a new type of ventilation valve with better sealing and stability, and capable of adapting to various complex environments, has become an urgent task. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of unreasonable design of valve blades and baffles in the prior art, which affect the sealing effect, and to provide an embedded blade and its valve.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides an embedded blade, the blade having a rotating shaft, the blade being able to rotate around the axis of the rotating shaft, the blade including a first metal sheet and a second metal sheet, the first metal sheet and the second metal sheet forming a receiving space to accommodate the rotating shaft, the edge of the first metal sheet parallel to the rotating shaft forming a first bent edge, the edge of the second metal sheet parallel to the rotating shaft forming a second bent edge, the first bent edge and the second bent edge being symmetrically arranged with the axis of the rotating shaft as the center of symmetry.

[0007] In this technical solution, the first and second metal sheets made of metal can be processed by stamping and other processes to directly form the first and second bent edges. The processing accuracy is high, the structure is simple, the overall weight of the blade is light, and the sealing effect is good.

[0008] Preferably, the first metal sheet has a first connecting portion in the middle, and the second metal sheet has a second connecting portion in the middle, and the accommodating space is formed by the first connecting portion and the second connecting portion fitting together.

[0009] In this technical solution, by setting a first connecting part and a second connecting part in the middle of the first metal sheet and the second metal sheet and fitting them together, the overall structural strength and stability of the blade are enhanced; the accommodating space formed by the fitting of the first connecting part and the second connecting part facilitates the installation and fixing of the rotating shaft, thereby improving the assembly accuracy and reliability.

[0010] Preferably, the cross-section of the first connecting portion perpendicular to the rotation axis is sequentially divided into a first left fitting section, a first left transition section, a first middle section, a first right transition section, and a first right fitting section. The first left fitting section is located near the first bending edge, and the first left transition section and the first right transition section form an obtuse angle with the first middle section. The cross-section of the second connecting portion perpendicular to the rotation axis is sequentially divided into a second left fitting section, a second left transition section, a second middle section, a second right transition section, and a second right fitting section. The second right fitting section is located near the second bending edge, and the second left transition section and the second right transition section form an obtuse angle with the second middle section. The first left fitting section and the second left fitting section fit together, and the first right fitting section and the second right fitting section fit together. The first left transition section, the first middle section, the first right transition section, the second left transition section, the second middle section, and the second right transition section form the receiving space.

[0011] In this technical solution, the structural design of the first connecting part and the second connecting part not only forms a space for installing the rotating shaft, but also ensures the overall strength of the blade and improves the blade's compressive strength.

[0012] Preferably, the blade is provided with a plurality of fixing holes, the fixing holes passing through the first intermediate section, the rotating shaft and the second intermediate section; the blade also includes a plurality of locking bolts, the locking bolts being inserted into the fixing holes to fix the first intermediate section, the rotating shaft and the second intermediate section together.

[0013] In this technical solution, the first intermediate section, the rotating shaft and the second intermediate section can be fixed together by the locking bolts that pass through the fixing holes, thereby fixing the first metal plate and the second metal plate to the rotating shaft. The blade assembly is convenient and firm, effectively preventing the blade from loosening or shifting during operation.

[0014] Preferably, the first metal sheet further includes a first parallel segment and a first inclined segment. The first parallel segment is connected to the first bent edge, and the first inclined segment is located between the first parallel segment and the first connecting portion. The first parallel segment is perpendicular to the first bent edge, and the first inclined segment forms an obtuse angle with the first parallel segment.

[0015] In this technical solution, a first parallel section and a first inclined section are provided so that the blades can better guide the airflow when closed, reducing turbulence and noise; the first parallel section and the first inclined section are designed with obtuse angles, which enhances the airflow guiding effect of the blades and improves the compressive strength of the structure.

[0016] Preferably, the second metal sheet has a second guide edge on the side away from the second bending edge, and the second guide edge forms an angle with the first inclined segment.

[0017] In this technical solution, the setting of the second guide edge further optimizes the airflow channel, reduces the resistance of airflow over the blade surface, and improves the ventilation efficiency of the valve; the second guide edge forms a shield for the space between the first bending edge and the first parallel section, which helps to prevent dust and impurities from accumulating on the surface of the first bending edge, and makes the sealing effect better when adjacent blades overlap.

[0018] Preferably, the second metal sheet further includes a second parallel segment and a second inclined segment. The second parallel segment is connected to the second bent edge, and the second inclined segment is located between the second parallel segment and the second connecting portion. The second parallel segment is perpendicular to the second bent edge, and the second inclined segment forms an obtuse angle with the second parallel segment.

[0019] In this technical solution, a second parallel section and a second inclined section are provided so that the blades can better guide the airflow when closed, reducing turbulence and noise; the second parallel section and the second inclined section are designed with obtuse angles, which enhances the airflow guiding effect of the blades and improves the compressive strength of the structure.

[0020] Preferably, the first metal sheet has a first guide edge on the side away from the first bending edge, and the first guide edge forms an angle with the second inclined segment.

[0021] In this technical solution, the setting of the first guide edge further optimizes the airflow channel, reduces the resistance of airflow over the blade surface, and improves the ventilation efficiency of the valve; the first guide edge forms a shield for the space between the second bend edge and the second parallel section, which helps to prevent dust and impurities from accumulating on the surface of the second bend edge, and makes the sealing effect better when adjacent blades overlap.

[0022] This utility model provides an embedded vane valve, including an outer frame, a plurality of vanes, and two sealing baffles. The outer frame is used for installation in a channel. The vanes are embedded vanes as described in the above technical solution, with the plurality of vanes located inside the outer frame. The rotation shafts of the vanes are mounted on the outer frame, and the rotation shafts of the plurality of vanes are arranged in parallel. The two sealing baffles are fixed to the inner circumferential surface of the outer frame, and the two sealing baffles are respectively located above and below the vanes. The side of the sealing baffle facing the vane is provided with a bent edge, and the bent edge is arranged parallel to the rotation shaft of the vane. When the plurality of vanes rotate to the closed state, the first bent edge of the vane engages with the second bent edge of the adjacent vane, and the bent edge of the sealing baffle engages with the first or second bent edge of the adjacent vane.

[0023] In this technical solution, sealing baffles are respectively provided above and below the inner circumferential surface of the outer frame. The sealing baffles are provided with bent baffles that can fit with the first bent edge or the second bent edge to form a seal, so that when the valve is in the closed state, the upper and lower parts of the blade can be sealed with the outer frame, thereby ensuring the overall sealing performance of the valve when it is closed.

[0024] Preferably, the surface of the outer frame facing the end of the blade forms an elastic region that protrudes toward the blade; when the blades rotate to a sealed state, the end of the blade is sealed to the elastic region.

[0025] In this technical solution, the elastic region allows the end of the blade to maintain a sealed state with the outer frame, thereby ensuring the overall sealing performance when the valve is closed.

[0026] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] The aforementioned embedded blade and its valve, with its first and second metal sheets made of metal, can be processed by stamping and other processes to directly form the first and second bent edges. This process achieves high precision, a simple structure, lightweight blades, and good sealing performance. When the blade is used in a valve, sealing baffles are installed above and below the inner circumference of the outer frame. These sealing baffles are designed to fit against the first or second bent edge to form a seal, ensuring a tight seal between the blade and the outer frame when the valve is closed. This guarantees the overall sealing performance of the valve when it is closed. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the embedded blade valve of this utility model.

[0030] Figure 2 for Figure 1 The diagram shows the structure of the blades in an embedded blade valve.

[0031] Figure 3 for Figure 1 The diagram shows a cross-sectional view of an embedded vane valve.

[0032] Explanation of reference numerals in the attached figures

[0033] Outer frame 1

[0034] Elastic area 11

[0035] Leaf 2

[0036] Rotating shaft 21

[0037] First metal plate 22

[0038] First bend edge 221

[0039] First connecting part 222

[0040] First left-side aligning section 223

[0041] First left transition section 224

[0042] First middle section 225

[0043] First right transition section 226

[0044] First right-side aligning segment 227

[0045] First Parallel Segment 228

[0046] First inclined section 229

[0047] First guide edge 2210

[0048] Second metal sheet 23

[0049] Second bend edge 231

[0050] Second connecting part 232

[0051] Second left-side bonding section 233

[0052] Second left transition section 234

[0053] Second middle section 235

[0054] Second right transition section 236

[0055] Second right-side bonding section 237

[0056] Second parallel segment 238

[0057] Second inclined section 239

[0058] Second guide edge 2310

[0059] Capacity 24

[0060] Fixing hole 25

[0061] Sealing baffle 3

[0062] Bending edge 31

[0063] Linkage structure 4 Detailed Implementation

[0064] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0065] like Figure 1 The diagram shows the structure of the embedded vane valve of this utility model. The embedded vane valve includes an outer frame 1 and several vanes 2. The outer frame 1 is used for installation in a channel, and the vanes 2 are located inside the outer frame 1. The rotation shafts 21 of the vanes 2 are mounted on the outer frame 1, and the rotation shafts 21 of the vanes 2 are arranged in parallel. When the vanes 2 rotate to an overlapping state, the valve is in a sealed state, and the air on both sides of the valve in the channel is isolated from each other. When the vanes 2 rotate to a state where they are far apart, the valve is in an open state, and the air on both sides of the valve in the channel flows through the gaps between the vanes 2.

[0066] Among them, blade 2 is an embedded blade, specifically as follows: Figure 2 As shown. The blade 2 includes a first metal sheet 22 and a second metal sheet 23. A receiving space 24 for accommodating the rotating shaft 21 is formed between the first metal sheet 22 and the second metal sheet 23. The edge of the first metal sheet 22 parallel to the rotating shaft 21 forms a first bent edge 221, and the edge of the second metal sheet 23 parallel to the rotating shaft 21 forms a second bent edge 231. The first bent edge 221 and the second bent edge 231 are symmetrically arranged with the axis of the rotating shaft 21 as the center of symmetry.

[0067] The blade 2 is composed of a first metal sheet 22 and a second metal sheet 23. The overlap between the blades 2 is achieved through the overlap between the first bent edge 221 and the second bent edge 231. The first metal sheet 22 and the second metal sheet 23, made of metal, can be processed by stamping and other processes to directly form the first bent edge 221 and the second bent edge 231. This process achieves high precision, a simple structure, lightweight blades, and good sealing performance. The first metal sheet 22 and the second metal sheet 23 are preferably made of galvanized steel or stainless steel. Galvanized steel, with its excellent rust-resistant properties, can maintain its appearance integrity for a long time in extremely harsh environments with high humidity and dust, effectively resisting rust. Stainless steel, on the other hand, is known for its corrosion resistance and high strength, ensuring no corrosion or deformation even in the most extreme and complex high-temperature and high-humidity environments, or in places filled with chemicals and highly corrosive substances. The use of galvanized steel or stainless steel for the first metal sheet 22 and the second metal sheet 23 prevents corrosion or deformation, allowing the valve to operate stably, unaffected by external adverse factors, and consistently maintaining excellent performance.

[0068] like Figure 2 As shown, the first metal sheet 22 has a first connecting portion 222 in its middle, and the second metal sheet 23 has a second connecting portion 232 in its middle. The accommodating space 24 is formed by the mutual contact of the first connecting portion 222 and the second connecting portion 232. By setting the first connecting portion 222 and the second connecting portion 232 in the middle of the first metal sheet 22 and the second metal sheet 23 and having them mutually contacted, the overall structural strength and stability of the blade 2 are enhanced. The accommodating space 24 formed by the mutual contact of the first connecting portion 222 and the second connecting portion 232 facilitates the installation and fixation of the rotating shaft 21, improving assembly accuracy and reliability.

[0069] Specifically, the cross-section of the first connecting portion 222 perpendicular to the rotation axis 21 is sequentially divided into a first left fitting section 223, a first left transition section 224, a first middle section 225, a first right transition section 226, and a first right fitting section 227. The first left fitting section 223 is located close to the first bending edge 221, and the first left transition section 224, the first right transition section 226, and the first middle section 225 form an obtuse angle. The cross-section of the second connecting portion 232 perpendicular to the rotation axis 21 is sequentially divided into a second left fitting section 233, a second left transition section 234, a second middle section 235, and a first right fitting section 227. The second right transition section 236 and the second right fitting section 237 are positioned close to the second bending edge 231. The second left transition section 234 and the second right transition section 236 form an obtuse angle with the second middle section 235. The first left fitting section 223 and the second left fitting section 233 are fitted together, and the first right fitting section 227 and the second right fitting section 237 are fitted together. The first left transition section 224, the first middle section 225, the first right transition section 226, the second left transition section 234, the second middle section 235, and the second right transition section 236 form an accommodating space 24.

[0070] The structural design of the first connecting portion 222 and the second connecting portion 232, while forming a receiving space 24 for mounting the rotating shaft 21, ensures the overall strength of the blade and improves its compressive strength. The first left bonding section 223, the first right bonding section 227, the second left bonding section 233, and the second right bonding section 237 define the relative positions between the first connecting portion 222 and the second connecting portion 232, making blade assembly more convenient. The first left transition section 224, the first intermediate section 225, and the first right transition section 226 form obtuse angles, and the second left transition section 234, the second right transition section 236, and the second intermediate section 235 form obtuse angles, which helps guide airflow, reduce wind resistance, and enhance structural rigidity and deformation resistance.

[0071] like Figure 2 As shown, the blade 2 has several fixing holes 25, which pass through the first intermediate section 225, the rotating shaft 21, and the second intermediate section 235. The blade 2 also includes several locking bolts (not shown in the figure), which are inserted into the fixing holes 25 to fix the first intermediate section 225, the rotating shaft 21, and the second intermediate section 235 together. By using the locking bolts that pass through the fixing holes 25, the first intermediate section 225, the rotating shaft 21, and the second intermediate section 235 can be fixed together, thereby fixing the first metal plate 22 and the second metal plate 23 to the rotating shaft 21. The blade assembly is convenient and secure, effectively preventing the blade from loosening or shifting during operation.

[0072] like Figure 2 As shown, the first metal sheet 22 also includes a first parallel section 228 and a first inclined section 229. The first parallel section 228 is connected to the first bent edge 221, and the first inclined section 229 is located between the first parallel section 228 and the first connecting portion 222. The first parallel section 228 is perpendicular to the first bent edge 221, and the first inclined section 229 forms an obtuse angle with the first parallel section 228. The first parallel section 228 and the first inclined section 229 are designed to better guide airflow when the blade is closed, reducing turbulence and noise. The obtuse angle design of the first parallel section 228 and the first inclined section 229 enhances the airflow guiding effect of the blade and improves the compressive strength of the structure.

[0073] like Figure 2As shown, the second metal sheet 23 also includes a second parallel section 238 and a second inclined section 239. The second parallel section 238 is connected to the second bent edge 231, and the second inclined section 239 is located between the second parallel section 238 and the second connecting portion 232. The second parallel section 238 is perpendicular to the second bent edge 231, and the second inclined section 239 forms an obtuse angle with the second parallel section 238. The arrangement of the second parallel section 238 and the second inclined section 239 allows the blade to better guide airflow when closed, reducing turbulence and noise. The obtuse angle design of the second parallel section 238 and the second inclined section 239 enhances the blade's airflow guiding effect and improves the structure's compressive strength.

[0074] like Figure 2 As shown, the first metal sheet 22 has a first guide edge 2210 on the side away from the first bent edge 221, forming an angle with the second inclined section 239; the second metal sheet 23 has a second guide edge 2310 on the side away from the second bent edge 231, forming an angle with the first inclined section 229. The arrangement of the first guide edge 2210 and the second guide edge 2310 further optimizes the airflow channel, reduces the resistance of airflow over the surface of the blade 2, and improves the ventilation efficiency of the valve. The first guide edge 2210 and the second guide edge 2310 shield the space between the second bent edge 231 and the second parallel section 238, and the second guide edge 2310 shields the space between the first bent edge 221 and the first parallel section 228, which helps to prevent dust and impurities from accumulating on the surfaces of the first bent edge 221 and the second bent edge 231, resulting in a better sealing effect when adjacent blades 2 overlap.

[0075] When the aforementioned embedded blades are applied to valves, such as Figure 1 and Figure 3 As shown. The embedded vane valve also includes two sealing baffles 3, which are fixed to the inner circumferential surface of the outer frame 1. The two sealing baffles 3 are located above and below the vane 2, respectively. The side of the sealing baffle 3 facing the vane 2 is provided with a bent edge 31, which is arranged parallel to the rotation axis of the vane 2. When several vanes 2 rotate to the closed state, the first bent edge 221 of the vane 2 is engaged with the second bent edge 231 of the adjacent vane 2, and the bent edge 31 of the sealing baffle 3 is engaged with the first bent edge 221 or the second bent edge 231 of the adjacent vane 2.

[0076] Sealing baffles 3 are respectively provided above and below the inner circumferential surface of the outer frame 1. The sealing baffles 3 are provided with bent baffles 31 that can fit with the first bent edge 221 or the second bent edge 231 to form a seal, so that when the valve is in the closed state, the upper and lower parts of the blade 2 can be sealed with the outer frame 1, thereby ensuring the overall sealing performance of the valve when it is closed.

[0077] The outer frame 1 has an elastic region 11 protruding towards the blade 2 on the surface of the end facing the blade 2. When the blades 2 rotate to the closed state, the ends of the blades 2 are sealed to the elastic region 11. The elastic region 11 ensures that the ends of the blades 2 and the outer frame 1 remain sealed, thereby guaranteeing the overall sealing performance of the valve when it is closed.

[0078] In this embodiment, several blades 2 are driven by a connecting rod structure 4. In other embodiments, the blades 2 may also be driven by other driving mechanisms.

[0079] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. An embedded blade, wherein the blade is provided with a rotating shaft, and the blade is rotatable about the axis of the rotating shaft, characterized in that: The blade includes a first metal sheet and a second metal sheet, and a receiving space is formed between the first metal sheet and the second metal sheet to accommodate the rotating shaft. The edge of the first metal sheet parallel to the rotating shaft forms a first bent edge, and the edge of the second metal sheet parallel to the rotating shaft forms a second bent edge. The first bent edge and the second bent edge are symmetrically arranged with the axis of the rotating shaft as the center of symmetry.

2. The embedded blade as described in claim 1, characterized in that: The first metal sheet has a first connecting part in the middle, and the second metal sheet has a second connecting part in the middle. The accommodating space is formed by the first connecting part and the second connecting part fitting together.

3. The embedded blade as described in claim 2, characterized in that: The first connecting part is divided into a first left fitting section, a first left transition section, a first middle section, a first right transition section, and a first right fitting section in sequence with the cross section perpendicular to the rotation axis. The first left fitting section is located close to the first bending edge, and the first left transition section and the first right transition section form an obtuse angle with the first middle section. The second connecting part is divided into a second left fitting section, a second left transition section, a second middle section, a second right transition section, and a second right fitting section in sequence with the cross section perpendicular to the rotation axis. The second right fitting section is located close to the second bending edge, and the second left transition section, the second right transition section and the second middle section form an obtuse angle. The first left bonding segment and the second left bonding segment are bonded together, the first right bonding segment and the second right bonding segment are bonded together, and the first left transition segment, the first middle segment, the first right transition segment, the second left transition segment, the second middle segment, and the second right transition segment form the accommodating space.

4. The embedded blade as described in claim 3, characterized in that: The blade is provided with a plurality of fixing holes, which pass through the first intermediate section, the rotating shaft and the second intermediate section; the blade also includes a plurality of locking bolts, which are inserted into the fixing holes to fix the first intermediate section, the rotating shaft and the second intermediate section.

5. The embedded blade as described in claim 2, characterized in that: The first metal sheet further includes a first parallel segment and a first inclined segment. The first parallel segment is connected to the first bent edge, and the first inclined segment is located between the first parallel segment and the first connecting portion. The first parallel segment is perpendicular to the first bent edge, and the first inclined segment forms an obtuse angle with the first parallel segment.

6. The embedded blade as described in claim 5, characterized in that: The second metal sheet has a second guide edge on the side away from the second bending edge, and the second guide edge forms an angle with the first inclined section.

7. The embedded blade as described in claim 2, characterized in that: The second metal sheet further includes a second parallel segment and a second inclined segment. The second parallel segment is connected to the second bent edge. The second inclined segment is located between the second parallel segment and the second connecting portion. The second parallel segment is perpendicular to the second bent edge. The second inclined segment and the second parallel segment form an obtuse angle.

8. The embedded blade as described in claim 7, characterized in that: The first metal sheet has a first guide edge on the side away from the first bending edge, and the first guide edge forms an angle with the second inclined segment.

9. An embedded blade valve, characterized in that, include: An outer frame, which is used for mounting in the channel; A plurality of blades, wherein the blades are embedded blades as described in any one of claims 1 to 8, the plurality of blades are located within the outer frame, the rotation shafts of the blades are mounted on the outer frame, and the rotation shafts of the plurality of blades are arranged in parallel. Two sealing baffles are fixed to the inner circumferential surface of the outer frame. The two sealing baffles are located above and below the blade, respectively. The side of the sealing baffle facing the blade is provided with a bent edge, which is arranged parallel to the rotation axis of the blade. When several blades rotate to a sealed state, the first bent edge of the blade engages with the second bent edge of the adjacent blade, and the bent edge of the sealing baffle engages with the first or second bent edge of the adjacent blade.

10. The embedded vane valve as described in claim 9, characterized in that: The outer frame has an elastic region protruding towards the blade on the surface of the end facing the blade; when the blades rotate to a closed state, the ends of the blades are sealed to the elastic region.

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