Blade sealing connecting rod structure

Abstract

The utility model provides a blade sealing connecting rod structure which comprises a shell, an installation cavity is formed in the shell, strip-shaped protrusions are arranged on the inner wall of the installation cavity, the two ends of the installation cavity are open, an air outlet and an air inlet are formed in the two ends of the installation cavity, and an air guide assembly is arranged in the installation cavity. The air guide assembly comprises a plurality of air guide blades rotationally installed in the installation cavity, connecting rods are arranged between the air guide blades, synchronous rotation can be achieved, sealing parts are arranged on the edges of the air guide blades, and when the air guide blades rotate to be in a closed state, the sealing parts are sealed. The sealing parts can be attached to the surfaces of the strip-shaped protrusions and the surfaces of the air guide blades adjacent to the strip-shaped protrusions to achieve sealing. The blade sealing connecting rod structure is compact in structure, low in manufacturing cost and maintenance cost, good in sealing performance, capable of preventing air leakage, good in using effect and experience and wide in application range.

Description

Technical Field

[0001] This utility model relates to an automotive air conditioner, and more particularly to a blade sealing linkage structure. Background Technology

[0002] Automotive air conditioning systems aim to provide comfortable temperature and air quality for passengers. As a crucial component of this system, the air vents are responsible for delivering cool or warm air to various areas of the vehicle, providing a comfortable riding environment. In recent years, with increasing demands for passenger comfort, the design of automotive air vents has evolved towards greater intelligence and user-friendliness. Various solutions for adjusting airflow direction and speed have emerged on the market, such as adjustable airflow blades, motor-driven airflow regulators, and intelligent airflow control systems. However, due to structural limitations, traditional air guide blades, when closed, leave gaps between the blade and the inner wall of the air chamber, and between adjacent blades, failing to achieve a proper seal. This allows cool or warm air to escape through these gaps, affecting the user experience. Utility Model Content

[0003] Technical problems to be solved

[0004] The technical problem to be solved by this utility model is to provide a blade sealing connecting rod structure that is compact, simple to manufacture, low in cost, easy to assemble, and has a good sealing effect.

[0005] Technical solutions to the problem

[0006] This utility model provides a blade sealing linkage structure, including a housing 1, an installation cavity formed inside the housing, a strip-shaped protrusion on the inner wall of the installation cavity, and an air outlet and an air inlet at both ends of the installation cavity. An air guide assembly is provided inside the installation cavity, and the air guide assembly includes a plurality of air guide blades 3 rotatably installed in the installation cavity. A connecting rod 4 is provided between the air guide blades 3 and they can rotate synchronously. A sealing part is provided on the edge of the air guide blade 3. When rotated to the closed state, the sealing part can fit against the strip-shaped protrusion and the surface of the adjacent air guide blade 3 and achieve a seal.

[0007] Furthermore, the guide vane 3 includes a vane body 31. The vane body 31 is symmetrically provided with convex shafts 3a on both sides, which divide the vane body 31 into a front plate and a rear plate. The edge of the front plate is provided with a first rubber strip 32. The two sides and the end of the first rubber strip 32 respectively form a first sealing part 321a and a second sealing part 321b. The bottom surfaces of the first sealing part 321a and the second sealing part 321b serve as sealing surfaces. The end of the rear plate of the guide vane 3 located at the tail end is provided with a second sealing strip 33. The second sealing strip 33 forms the third sealing part 331. The top surface of the third sealing part 331 serves as a sealing surface.

[0008] Furthermore, a strip-shaped groove is provided on the upper surface of the tail of the air guide blade 3 located at the tail end. The length direction of the strip-shaped groove is parallel to the width direction of the mounting cavity, and the second sealing strip 33 is installed in the strip-shaped groove.

[0009] Furthermore, the edge of the sealing part has a strip-shaped protrusion along the contour direction to form a sealing lip.

[0010] Furthermore, the strip-shaped protrusion includes a first strip-shaped protrusion disposed at both ends of the mounting cavity and a second strip-shaped protrusion 21 disposed on both sides of the mounting cavity. The sealing part at the end of the air guide blade 3 located at both ends can fit into the upper or lower surface of the first strip-shaped protrusion, and the sealing part on both sides of the air guide blade 3 can fit into the upper surface of the second strip-shaped protrusion 21.

[0011] Furthermore, the second strip-shaped protrusion 21 is inclined.

[0012] Furthermore, the lower surfaces of the first sealing part 321a and the second sealing part 321b are provided with a first groove along the contour direction and form a first sealing lip and a second sealing lip respectively, and the upper surface of the third sealing part is provided with a second groove along the width direction and forms a third sealing lip.

[0013] Furthermore, the cross-sections of the first groove and the second groove are arc-shaped.

[0014] Furthermore, the first strip-shaped protrusion includes a first strip-shaped protrusion I11 disposed at the head of the mounting cavity and a first strip-shaped protrusion II12 disposed at the tail of the mounting cavity. The second sealing part 321b on the air guide vane 3 at the head can fit against the upper surface of the first strip-shaped protrusion I11, and the third sealing part 331 on the air guide vane 3 at the tail can fit against the lower surface of the first strip-shaped protrusion II12.

[0015] Furthermore, it also includes two parallel strip supports 2, the air guide blades 3 are rotatably installed between the two strip supports 2 to form the air guide assembly, the air guide assembly is detachably installed in the mounting cavity by a snap fastener, and the second strip protrusion 21 is provided on the inner wall of the strip support 2.

[0016] Beneficial effects

[0017] This utility model features a blade sealing link structure with a sealing section along the edge of the air guide blade. This achieves sealing between the air guide assembly and the inner wall of the mounting cavity, as well as sealing within the air guide assembly itself, preventing gaps and air leakage, resulting in excellent sealing performance. The sealing lip reduces the contact area, achieving linear contact, high fit, and excellent sealing. The strip-shaped groove forming the sealing lip reduces manufacturing costs, provides high strength and fit, and ensures good sealing. This utility model's blade sealing link structure is compact, has low manufacturing and maintenance costs, excellent sealing performance, prevents air leakage, offers good user experience, and has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the blade sealing connecting rod structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the blade sealing connecting rod structure of this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0021] Figure 4 This is another planar sectional view of the blade sealing connecting rod structure of this utility model;

[0022] Figure 5 for Figure 4 Enlarged view of section B;

[0023] Figure 6 for Figure 4 Enlarged view of section C;

[0024] Figure 7 for Figure 4 Enlarged view of section D;

[0025] Figure 8 This is a schematic diagram of the air guide assembly of the blade sealing connecting rod structure of this utility model;

[0026] Figure 9 This is a schematic diagram of the air guide assembly of the blade sealing link structure of this utility model from another angle;

[0027] Figure 10 This is a schematic diagram of the structure of the first guide vane of the blade sealing linkage structure of this utility model;

[0028] Figure 11 This is a cross-sectional view of the first guide vane of the blade sealing linkage structure of this utility model;

[0029] Figure 12 This is a schematic diagram of the structure of the second guide vane of the blade sealing linkage structure of this utility model;

[0030] Figure 13This is a cross-sectional view of the second guide vane of the blade sealing linkage structure of this utility model;

[0031] Figure 14 This is a schematic diagram of the strip support structure of the blade sealing connecting rod structure of this utility model. Detailed Implementation

[0032] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] See Figures 1-14 This utility model provides a blade sealing linkage structure for guiding the airflow of an automotive air conditioning vent and for opening and closing the vent. It includes a housing 1 with a rectangular cross-section forming an installation cavity within it. The inner wall of the installation cavity has strip-shaped protrusions for limiting and sealing when closed. The two ends of the installation cavity are open, forming an air outlet and an air inlet. An air guide assembly is installed within the installation cavity, positioned between the air inlet and outlet, enabling airflow direction adjustment and switching between connection and disconnection between the air inlet and outlet. The air guide assembly includes multiple air guide blades 3 rotatably mounted within the installation cavity. The rotation axis of the air guide blades 3 is parallel to the width direction of the installation cavity. These air guide blades 3 are equidistantly arranged along the length of the installation cavity, with spacing between them. The connecting rod 4 enables synchronous rotation. A connecting part 5 is provided on one of the guide vanes 3, which is connected to a drive mechanism, thereby driving all guide vanes 3 to rotate synchronously, adjusting the airflow direction and opening / closing the air outlet. A sealing part is provided on the edge of the guide vane 3. When rotated to the closed state, the guide vanes 3 fit together, blocking the airflow and closing the air outlet. At this time, the sealing part fits against the surface of the raised strip, achieving a seal between the air guide assembly and the inner wall of the housing. It also fits against the surface of adjacent guide vanes 3, achieving a tight seal between the guide vanes, ensuring no airflow leakage and improving the sealing performance of the air outlet.

[0034] The aforementioned strip-shaped protrusions include a first strip-shaped protrusion and a second strip-shaped protrusion. The first strip-shaped protrusion is located at both ends of the mounting cavity, and its length direction is parallel to the width direction of the mounting cavity. The sealing parts at the ends of the guide vanes 3 located at the beginning and end can fit against the upper or lower surface of the first strip-shaped protrusion. The second strip-shaped protrusion 21 is located on both sides of the mounting cavity, and the sealing parts on both sides of the guide vanes 3 can fit against the upper surface of the second strip-shaped protrusion 21. Specifically, the first strip-shaped protrusion includes a first strip-shaped protrusion I11 located at the head of the mounting cavity and a first strip-shaped protrusion II12 located at the tail of the mounting cavity. The second sealing part 321b on the guide vane 3 at the head can fit against the upper surface of the first strip-shaped protrusion I11, and the third sealing part 331 on the guide vane 3 at the tail can fit against the lower surface of the first strip-shaped protrusion II12.

[0035] Specifically, the guide vane 3 includes a vane body 31. Symmetrically arranged convex shafts 3a on both sides of the vane body 31 divide the vane body 31 into a front plate and a rear plate. When rotated to the closed state, the front plate can fit against the rear plate on the adjacent front end of the vane body. A first rubber strip 32 is provided along the edge of the front plate. In this embodiment, the first rubber strip 32 has a U-shaped structure and is embedded in the edge of the front plate to ensure a sealing effect. First sealing portions 321a are formed on both sides of the first rubber strip 32, and the end of the first rubber strip 32 forms... The second sealing part 321b, and in the closed state, the bottom surfaces of the first sealing part 321a and the second sealing part 321b serve as sealing surfaces; the end of the rear end plate of the air guide blade 3 located at the tail end is provided with a second sealing strip 33. In this embodiment, a strip-shaped groove is opened on the upper surface of the tail end of the air guide blade 3 located at the tail end. The length direction of the strip-shaped groove is parallel to the width direction of the mounting cavity. The second sealing strip 33 is installed in the strip-shaped groove, and the second sealing strip 33 forms a third sealing part 331, and the top surface of the third sealing part 331 serves as a sealing surface.

[0036] In this application, the structure of the first to the second-to-last guide vanes is the same, referred to as the first guide vane. A first rubber strip 32 is provided at the head of the first guide vane, i.e., at the edge of the front plate, thus having a first sealing part and a second sealing part. The guide vane located at the end (tail) is called the second guide vane. It not only has a first rubber strip 32 provided on the front plate, but also has a second sealing strip 33 provided on the upper surface of the tail of the rear plate, forming a third sealing part, which is used to contact the strip-shaped protrusion at the rear end to achieve a seal. The orientation of the third seal is different from that of the first and second sealing parts.

[0037] To improve the sealing effect and fit, a strip-shaped protrusion is provided along the contour direction on the edge of the sealing part to form a sealing lip. This reduces the area of ​​the sealing surface, forms linear contact, improves the fit during contact, and thus improves the sealing performance.

[0038] In this application, the lower surfaces of the first sealing part 321a and the second sealing part 321b are provided with a first groove along the contour (edge) direction, and respectively form a first sealing lip and a second sealing lip. The upper surface of the third sealing part is provided with a second groove along the width direction, forming a third sealing lip. Specifically, a first groove I 320a is provided on the bottom surface of the first sealing part 321a along the edge direction. The length direction of the first groove I 320a is parallel to the length direction of the blade, thereby forming a first sealing lip. A first groove II 320b is provided on the bottom surface of the second sealing part 321b along the edge direction. The length direction of the first groove II is parallel to the width direction of the mounting cavity, thereby forming a second sealing lip. The first groove I and the first groove II are connected and perpendicular to each other, forming a U-shaped groove. A second groove 330 is provided on the upper surface of the third sealing part along the edge direction. The length direction of the second groove 330 is parallel to the width direction of the mounting cavity, thereby forming a third sealing lip.

[0039] To facilitate processing and assembly and reduce manufacturing and maintenance costs, the air guide assembly in this application further includes two parallel strip supports 2. The air guide blades 3 are rotatably mounted between the two strip supports 2 to form an air guide assembly (assembly). The air guide assembly is detachably mounted in the mounting cavity by a snap-fit, which is convenient for assembly and has low maintenance costs. A second strip protrusion 21 is provided on the inner wall of the strip support 2. There are multiple second strip protrusions 21, which are inclined to ensure that the air guide blades can fit against the second strip protrusions when rotated to the closed state. A protrusion is provided on the inner wall of the strip support 2 to form a limiting block 22 for controlling the rotation angle of the air guide blades.

[0040] The following is a detailed explanation:

[0041] Multiple air guide blades 3 are rotatably mounted between two strip-shaped supports 2. The rotation axis of the air guide blades 3 is perpendicular to the length direction of the strip-shaped supports 2. A connecting rod 4 is provided between each air guide blade 3, which enables the synchronous rotation of each air guide blade 3. At the same time, a connecting part 5 is provided at the bottom of one of the air guide blades. This connecting part 5 is connected to a driving device to drive the air guide blade to rotate, thereby realizing the adjustment of the air outlet direction and the opening and closing of the air outlet. The air guide blade 3 includes multiple first air guide blades and second air guide blades located at the ends. The front plates of the first air guide blades and the second air guide blades are provided with downward-facing first sealing lips and second sealing lips. When rotated to the closed state, the first sealing lip can contact the upper surface of the second strip-shaped protrusions 21 on both sides of the mounting cavity, realizing the sealing between the air guide blade and the length side of the mounting cavity. The second sealing lip at the end of the second guide vane and the second sealing lip of the first guide vane in the middle can contact the upper surface of the adjacent first guide vane (rear plate) to achieve a seal between the guide vanes and eliminate the gap between the two adjacent guide vanes; the second sealing lip of the first guide vane at the head can contact the upper surface of the first strip protrusion I11 to achieve a seal between the guide assembly and the front end of the inner wall of the mounting cavity, eliminating the gap; the third sealing lip at the rear end of the second guide vane can contact the lower surface of the first strip protrusion II12 to achieve a seal between the guide assembly and the rear end of the mounting cavity, eliminating the gap, thereby eliminating the gap between the guide assembly and the inner wall of the mounting cavity and between the guide vanes, achieving a good sealing effect between the guide assembly and the inner wall of the mounting cavity and between the guide vanes.

[0042] This utility model features a blade sealing link structure with a sealing section along the edge of the air guide blade. This achieves sealing between the air guide assembly and the inner wall of the mounting cavity, as well as sealing within the air guide assembly itself, preventing gaps and air leakage, resulting in excellent sealing performance. The sealing lip reduces the contact area, achieving linear contact, high fit, and excellent sealing. The strip-shaped groove forming the sealing lip reduces manufacturing costs, provides high strength and fit, and ensures good sealing. This utility model's blade sealing link structure is compact, has low manufacturing and maintenance costs, excellent sealing performance, prevents air leakage, offers good user experience, and has a wide range of applications.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A blade sealing linkage structure, characterized in that: The device includes a housing with a mounting cavity formed therein. The inner wall of the mounting cavity has a strip-shaped protrusion. The two ends of the mounting cavity are open, forming an air outlet and an air inlet. An air guide assembly is provided inside the mounting cavity. The air guide assembly includes multiple air guide blades rotatably mounted inside the mounting cavity. The air guide blades are connected by a connecting rod and can rotate synchronously. The edges of the air guide blades are provided with sealing parts. When rotated to the closed state, the sealing parts can fit against the surface of the strip-shaped protrusion and the adjacent air guide blades to achieve a seal.

2. The blade sealing connecting rod structure as described in claim 1, characterized in that: The guide vane includes a vane body, and convex shafts are symmetrically arranged on both sides of the vane body to divide the vane body into a front plate and a rear plate. A first rubber strip is provided along the edge of the front plate. A first sealing part and a second sealing part are formed on both sides and the end of the first rubber strip, respectively. The bottom surfaces of the first sealing part and the second sealing part serve as sealing surfaces. A second sealing strip is provided at the end of the rear plate of the guide vane located at the tail end. The second sealing strip forms a third sealing part. The top surface of the third sealing part serves as a sealing surface.

3. The blade sealing connecting rod structure as described in claim 2, characterized in that: The upper surface of the tail of the air guide blade located at the tail end is provided with a strip-shaped groove, the length direction of the strip-shaped groove is parallel to the width direction of the mounting cavity, and the second sealing strip is installed in the strip-shaped groove.

4. The blade sealing connecting rod structure as described in claim 1, characterized in that: The edge of the sealing part has a strip-shaped protrusion along the contour direction to form a sealing lip.

5. The blade sealing connecting rod structure as described in claim 1, characterized in that: The strip-shaped protrusions include a first strip-shaped protrusion disposed at both ends of the mounting cavity and a second strip-shaped protrusion disposed on both sides of the mounting cavity. The sealing portions at the ends of the air guide blades located at the beginning and end can fit against the upper or lower surface of the first strip-shaped protrusion, and the sealing portions on both sides of the air guide blades can fit against the upper surface of the second strip-shaped protrusion.

6. The blade sealing connecting rod structure as described in claim 5, characterized in that: The second strip-shaped protrusion is inclined.

7. The blade sealing connecting rod structure as described in claim 2, characterized in that: The lower surfaces of the first sealing part and the second sealing part are provided with a first groove along the contour direction and form a first sealing lip and a second sealing lip respectively. The upper surface of the third sealing part is provided with a second groove along the width direction and forms a third sealing lip.

8. The blade sealing connecting rod structure as described in claim 7, characterized in that: The cross-sections of the first groove and the second groove are arc-shaped.

9. The blade sealing connecting rod structure as described in claim 5, characterized in that: The first strip-shaped protrusion includes a first strip-shaped protrusion I disposed at the head of the mounting cavity and a first strip-shaped protrusion II disposed at the tail of the mounting cavity. The second sealing part on the air guide blade at the head can fit against the upper surface of the first strip-shaped protrusion I, and the third sealing part on the air guide blade at the tail can fit against the lower surface of the first strip-shaped protrusion II.

10. The blade sealing link structure as described in claim 5, characterized in that: It also includes two parallel strip supports, the air guide blades are rotatably mounted between the two strip supports to form the air guide assembly, the air guide assembly is detachably mounted in the mounting cavity, and the second strip protrusion is provided on the inner wall of the strip support.

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