Quick dismounting structure of mushroom head for air conditioner air deflector
Patent Information
- Application Number
- CN202522267164.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-27
AI Technical Summary
蘑菇头安装轴的结构特点是两端较大、中间较小，安装时为了使蘑菇头能插入连杆的通孔内，设计师会根据材料特性，计算尺寸，对过盈量的大小进行准确计算，过大会导致装配人员难以操作，过小又会导致结构不稳当，使导风片从连杆上脱落
[0009]本实用新型的有益效果是：通过将普通的圆形安装孔设置成穿入部加连接部和转动部的结构形式，安装时先将蘑菇头安装轴插入到穿入部内，然后横向移动，使其卡入转动部，拆卸时反向操作即可，可大幅降低导风片的拆装难度，既能确保蘑菇头安装轴与连杆的可靠连接，又能方便对导风片进行拆卸清选，同时确保拆卸过程中不会造成连杆和导风片的损坏。
Smart Images
Figure CN224837810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning equipment, and in particular to a mushroom-shaped quick-release structure for air conditioning air guide vanes. Background Technology
[0002] To achieve left-right or up-down airflow, existing air conditioner indoor units typically employ multiple rotating air guide vanes at the air outlet. These vanes are also mounted on connecting rods, which are connected to a motor shaft. The motor drives the connecting rods to move left-right or up-down, thus enabling the vanes to move either direction. Most existing methods connect the vanes to the connecting rods by creating a through hole in the rod and attaching a mushroom-shaped mounting shaft to the vane. This shaft is forced into the through hole to achieve the rotational connection between the vane and the connecting rod. The mushroom-shaped mounting shaft is characterized by being larger at both ends and smaller in the middle. During installation, to ensure the mushroom head can be inserted into the through hole, designers calculate the dimensions based on material properties and precisely determine the interference fit. An excessively large interference fit makes assembly difficult, while an excessively small fit leads to structural instability and can cause the vanes to detach from the connecting rod. Since the vanes are constantly exposed to air, dust accumulates over time, requiring disassembly and cleaning. However, the mushroom-shaped mounting shaft makes disassembly difficult, and forced disassembly may damage the connecting rod or the vanes. Utility Model Content
[0003] To overcome the shortcomings of existing air guide vanes, such as the difficulty in disassembling the mushroom head mounting shaft and connecting rod, the technical problem to be solved by this utility model is to provide a quick disassembly and assembly structure for the mushroom head of an air guide vane that can reduce the difficulty of disassembling and assembling the air guide vane and connecting rod.
[0004] The technical solution adopted by this utility model to solve its technical problem is: The mushroom-shaped quick-release structure for air conditioner air guide vanes includes a connecting rod and an air guide vane rotatably mounted in a mounting hole on the connecting rod via a mushroom-shaped mounting shaft. The mounting hole includes an insertion part, a connecting part, and a rotating part in sequence along its radial direction. The inner diameter of the insertion part is not less than the outer diameter of the end of the mushroom-shaped mounting shaft. The inner diameter of the rotating part is approximately equal to the outer diameter of the middle part of the mushroom-shaped mounting shaft. The connecting part smoothly transitions between the insertion part and the rotating part, and the width of the narrowest part of the connecting part is less than the inner diameter of the rotating part. The middle part of the mushroom-shaped mounting shaft is engaged with the rotating part from the insertion part by causing the connecting part to elastically deform.
[0005] Furthermore, the connecting rod has a clearance hole located on the outer side of the connecting part.
[0006] Furthermore, the mushroom head mounting shaft has two opposite sides with axial cut surfaces. The distance between the two axial cut surfaces is equivalent to the width of the narrowest part of the connecting part. The two axial cut surfaces of the air guide vane are not parallel to the line connecting the center of the insertion part to the center of the rotating part within the normal rotation range.
[0007] Furthermore, the outer diameters at both ends of the mushroom head mounting shaft are larger than those at the middle, and the length of the middle part of the mushroom head mounting shaft is comparable to the depth of the mounting hole.
[0008] Furthermore, a reinforcing rim is provided around the edges of the insertion part, the connecting part, and the rotating part on both sides of the connecting rod, and the inner and outer sides of the reinforcing rim are provided with rounded chamfers.
[0009] The beneficial effects of this utility model are as follows: by setting the ordinary circular mounting hole into a structure with an insertion part, a connecting part, and a rotating part, during installation, the mushroom head mounting shaft is first inserted into the insertion part, and then moved laterally to make it engage with the rotating part. Disassembly can be performed by reversing the operation, which can greatly reduce the difficulty of disassembling and assembling the air guide plate. It can ensure a reliable connection between the mushroom head mounting shaft and the connecting rod, facilitate the disassembly and cleaning of the air guide plate, and ensure that the connecting rod and air guide plate are not damaged during the disassembly process. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 This is a schematic diagram of a mounting hole with a clearance hole. Figure 4 This is a schematic diagram of the air guide vane.
[0011] The markings in the diagram are as follows: 1-connecting rod, 2-air guide vane, 3-mushroom head mounting shaft, 4-mounting hole, 11-clearance hole, 12-reinforcing rim, 31-axial section, 41-insertion part, 42-connecting part, 43-rotating part. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] It should be noted that if this utility model contains directional indicators such as up, down, left, right, front, and back, these terms are used to describe the relative positional relationships between components and are not specific references to the absolute positions of the components or the relationships between them. They are only used to explain the relative positional relationships and movement of the components in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. If this utility model contains terms related to quantity such as "many," "multiple," or "several," these terms specifically refer to two or more.
[0014] like Figures 1 to 4 As shown, the present invention provides a mushroom-shaped quick-release structure for an air conditioner air guide vane, comprising a connecting rod 1 and an air guide vane 2 rotatably mounted in a mounting hole 4 on the connecting rod 1 via a mushroom-shaped mounting shaft 3. The mounting hole 4 includes, in its radial direction, an insertion part 41, a connecting part 42, and a rotating part 43. The inner diameter of the insertion part 41 is not less than the outer diameter of the end of the mushroom-shaped mounting shaft 3. The inner diameter of the rotating part 43 is approximately equal to the outer diameter of the middle part of the mushroom-shaped mounting shaft 3. The connecting part 42 smoothly transitions between the insertion part 41 and the rotating part 43, and the width of the narrowest part of the connecting part 42 is less than the inner diameter of the rotating part 43. The middle part of the mushroom-shaped mounting shaft 3 is inserted into the rotating part 43 from the insertion part 41 by causing the connecting part 42 to undergo elastic deformation.
[0015] The assembly process of this utility model is as follows: First, insert the mushroom head mounting shaft 3 into the insertion part 41. Because the inner diameter of the insertion part 41 is not less than the outer diameter of the end of the mushroom head mounting shaft 3, this step can be easily completed. Then, push the mushroom head mounting shaft 3 towards the rotating part 43. Utilizing the cooperation between the cylindrical surface in the middle of the mushroom head mounting shaft 3 and the smooth transition surface of the connecting part 42, the connecting part 42 undergoes slight elastic deformation, thereby causing the mushroom head mounting shaft 3 to snap into the rotating part 43 and rotate with it. Because the force required for the connecting rod 1 to drive the air guide vane 2 to rotate is small, the mushroom head mounting shaft 3 will not disengage from the rotating part 43 during normal operation. When it is necessary to disassemble and clean the air guide vane 2, simply reverse the above steps, which is convenient and quick.
[0016] To ensure the mushroom head mounting shaft 3 can smoothly pass through the connecting part 42 and engage with the rotating part 43, the width of the narrowest part of the connecting part 42 needs to be set according to the deformation of the connecting rod 1 material. This ensures that the force applied to the mushroom head mounting shaft 3 during installation is slightly greater than the force applied to the mushroom head mounting shaft 3 by the connecting rod 1 during normal operation of the air guide vane 2. Additionally, if... Figure 3 As shown, a clearance hole 11 can be provided on the connecting rod 1 at the position outside the connecting part 42. The clearance hole 11 allows the connecting part 42 to more smoothly deform outward when the mushroom head mounting shaft 3 passes through the connecting part 42, so that the mushroom head mounting shaft 3 can be more easily inserted into the rotating part 43.
[0017] This utility model also provides another more preferred solution, such as Figure 4 As shown, each of the two opposite sides of the mushroom-shaped mounting shaft 3 has an axial cross-section 31. The distance between the two axial cross-sections 31 is approximately equal to the width of the narrowest part of the connecting part 42. Within the normal rotation range, the two axial cross-sections 31 of the air guide vane 2 are not parallel to the line connecting the center of the insertion part 41 to the center of the rotating part 43. When installing the air guide vane 2, after inserting the mushroom-shaped mounting shaft 3 into the insertion part 41, rotate the mushroom-shaped mounting shaft 3 appropriately so that the two axial cross-sections 31 are parallel to the line connecting the center of the insertion part 41 to the center of the rotating part 43. The mushroom-shaped mounting shaft 3 can then smoothly pass through the connecting part 42 and enter the rotating part 43. After further appropriate rotation, the other shaft of the air guide vane 2 is installed onto the air conditioning panel. As long as it is ensured that the two axial cross-sections 31 of the air guide vane 2 are not parallel to the line connecting the center of the insertion part 41 to the center of the rotating part 43 within the normal rotation range, it can be ensured that the mushroom-shaped mounting shaft 3 will not detach from the rotating part 43 during normal operation.
[0018] Furthermore, to ensure the reliability of the connection between the air guide vane 2 and the connecting rod 1, the outer diameter of both ends of the mushroom head mounting shaft 3 is larger than that of the middle part, and the length of the middle part of the mushroom head mounting shaft 3 is approximately equal to the depth of the mounting hole 4, thereby preventing axial movement of the air guide vane 2. Additionally, a reinforcing rim 12 is provided around the edges of the insertion part 41, the connecting part 42, and the rotating part 43 on both sides of the connecting rod 1, with rounded chamfers on both the inner and outer sides of the reinforcing rim 12. The reinforcing rim 12 improves the structural strength of the mounting hole 4 and allows the two ends of the middle part of the mushroom head mounting shaft 3 to contact the reinforcing rim 12, achieving better axial positioning, reducing wear, and extending the service life of the rotating connection structure between the mushroom head mounting shaft 3 and the mounting hole 4.
[0019] This utility model transforms the ordinary circular mounting hole on the connecting rod 1 into a structure consisting of an insertion part 41, a connecting part 42, and a rotating part 43. During installation, the mushroom head mounting shaft 3 is first inserted into the insertion part 41, and then moved laterally to engage with the rotating part 43. Disassembly is performed by reversing the operation. This significantly reduces the difficulty of disassembling and assembling the air guide 2, ensuring a reliable connection between the mushroom head mounting shaft 3 and the connecting rod 1, facilitating the disassembly and cleaning of the air guide 2, and ensuring that the connecting rod 1 and the air guide 2 are not damaged during disassembly. It has excellent practicality and application value.
Claims
1. A mushroom-shaped quick-release structure for an air conditioner air guide vane, comprising a connecting rod (1) and an air guide vane (2) rotatably mounted in a mounting hole (4) on the connecting rod (1) via a mushroom-shaped mounting shaft (3), characterized in that: The mounting hole (4) includes, in sequence along its radial direction, an insertion part (41), a connecting part (42), and a rotating part (43). The inner diameter of the insertion part (41) is not less than the outer diameter of the end of the mushroom head mounting shaft (3). The inner diameter of the rotating part (43) is equivalent to the outer diameter of the middle part of the mushroom head mounting shaft (3). The connecting part (42) is smoothly connected between the insertion part (41) and the rotating part (43). The width of the narrowest part of the connecting part (42) is less than the inner diameter of the rotating part (43). The middle part of the mushroom head mounting shaft (3) is inserted into the rotating part (43) from the insertion part (41) by causing the connecting part (42) to undergo elastic deformation.
2. The mushroom-shaped quick-release structure for air conditioning air guide vanes as described in claim 1, characterized in that: The connecting rod (1) is provided with a clearance hole (11) on the part outside the connecting part (42).
3. The mushroom-shaped quick-release structure for air conditioning air guide vanes as described in claim 1, characterized in that: The mushroom head mounting shaft (3) has two opposite sides with axial cut surfaces (31) in the middle. The distance between the two axial cut surfaces (31) is equivalent to the width of the narrowest part of the connecting part (42). The two axial cut surfaces (31) of the air guide (2) are not parallel to the line connecting the center of the insertion part (41) to the center of the rotating part (43) within the normal rotation range.
4. The mushroom-shaped quick-release structure for air conditioning air guide vanes as described in claim 1, characterized in that: The outer diameters at both ends of the mushroom head mounting shaft (3) are greater than those at the middle, and the length of the middle part of the mushroom head mounting shaft (3) is equivalent to the depth of the mounting hole (4).
5. The mushroom-shaped quick-release structure for air conditioning air guide vanes as described in claim 1, characterized in that: The connecting rod (1) has a reinforcing rim (12) around the edges of the insertion part (41), the connecting part (42) and the rotating part (43) on both sides, and the reinforcing rim (12) has rounded chamfers on both the inner and outer sides.