Blade hidden type air outlet manual adjusting device

Abstract

The utility model belongs to the field and provides a blade hidden type air outlet manual adjusting device which comprises a shell, a blade hidden type air outlet manual adjusting device and a blade hidden type air outlet manual adjusting device. The upper hidden blade and the lower hidden blade are movably arranged on the upper side and the lower side of the shell respectively; the horizontal blade is rotatably mounted in the air outlet channel of the shell and used for adjusting the main air outlet direction of the air outlet channel; the middle of the track connecting rod is movably connected to the horizontal blade, and the upper and lower ends of the track connecting rod are movably clamped to the upper hidden blade and the lower hidden blade respectively. Compared with the prior art, the utility model has the advantages that through the cooperative work of the horizontal blade and the two hidden blades, when the air outlet channel blows air upwards or downwards, the hidden blades can be utilized to carry out auxiliary air blowing, so that the air blowing effect of a plurality of horizontal blades in the prior art is achieved, and the air blowing direction is ensured to be more accurate; the overall structure is simple, the occupied internal space is small, and the comfortable experience degree of a user is improved.

Description

Technical Field

[0001] This utility model belongs to the field of air outlets, specifically relating to a manual adjustment device for a blade-concealed air outlet. Background Technology

[0002] Traditional air conditioning or ventilation systems typically use multiple horizontally arranged blades at the air outlet to adjust the airflow direction. However, this design is not only aesthetically pleasing but also lacks flexibility in adjusting the airflow direction, failing to meet users' needs for airflow from different directions.

[0003] For example, a currently published Chinese invention patent (application publication number: CN114043851A) discloses a manual adjustment device for vehicle air conditioning vents, comprising: a main body assembly, which has an outer shell and an inner shell with openings at both ends, the inner shell being located inside the outer shell; a damper adjustment mechanism located inside the outer shell, the damper adjustment mechanism having: two damper plates; a manual adjustment component, one end of which passes through the inner shell and is connected to the two damper plates; and a top cover, which is detachably located at the top of the outer shell, the top cover having multiple through holes distributed in a matrix, the through holes being located at the air outlet ports of the two side air outlet channels. This structure mainly relies on two damper plates to achieve the air blowing function of the middle air outlet channel. However, multiple damper plates need to be combined with the inner wall structure of the air outlet channel while guiding the air, which not only occupies a large space and has a relatively complex structure, but also cannot effectively assist in blowing and ensure the accuracy of the air blowing direction, which has a certain impact on the user's air blowing experience and comfort. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a manual adjustment device for a blade-concealed air outlet with a simple overall structure that can realize auxiliary blowing, improve the accuracy of blowing direction and blowing comfort.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a manual adjustment device for a blade-concealed air outlet, including: a housing, which is configured with an air outlet channel inside.

[0006] The upper and lower hidden blades are movably disposed on the upper and lower sides of the housing, respectively;

[0007] A horizontal blade and a trajectory link are provided. The horizontal blade is rotatably installed in the air outlet channel of the housing to adjust the main air outlet direction of the air outlet channel. The middle part of the trajectory link is movably connected to the horizontal blade, and the upper and lower ends of the trajectory link are respectively movably engaged with the upper hidden blade and the lower hidden blade.

[0008] When the horizontal blade rotates to its upper limit position relative to the housing, the trajectory link can drive the lower hidden blade to swing into the air outlet channel, while the upper hidden blade remains stationary and close to the top wall of the air outlet channel.

[0009] When the horizontal blade rotates to its lower limit position relative to the housing, the trajectory link can drive the upper hidden blade to swing into the air outlet channel, while the lower hidden blade remains stationary and close to the bottom wall of the air outlet channel.

[0010] In the aforementioned manual adjustment device for a blade-concealed air outlet, the trajectory link includes a connecting part and a first link and a second link symmetrically distributed on both sides thereon. The connecting part has a mounting hole, and the horizontal blade has an extension post. The mounting hole is movably connected to the extension post. The upper concealed blade is movably engaged with the first link, and the lower concealed blade is movably engaged with the second link.

[0011] In the aforementioned manual adjustment device for a blade-concealed air outlet, the upper concealed blade and the lower concealed blade are completely concealed within the housing when the horizontal blade is in the middle position.

[0012] In the aforementioned manual adjustment device for a blade-concealed air outlet, one end of the upper concealed blade and the lower concealed blade are provided with a connecting shaft, and the other end is provided with a locking block. The connecting shaft is movably connected to the housing. The first connecting rod and the second connecting rod are both provided with arc-shaped sliding grooves, and the locking block is movably engaged with the arc-shaped sliding groove.

[0013] In the aforementioned manual adjustment device for a blade-concealed air outlet, a soft rubber bushing is also connected to the locking block to prevent abnormal noise from occurring when the upper / lower concealed blades swing relative to the housing.

[0014] In the aforementioned manual adjustment device for a blade-concealed air outlet, both the first and second connecting rods have clearance grooves, and both the upper and lower sides of the housing have clearance slots. The clearance grooves provide rotation space for the upper / lower concealed blades; the first and second connecting rods move through the clearance slots.

[0015] In the aforementioned manual adjustment device for a blade-concealed air outlet, a rotating shaft and a track block are respectively provided on both sides of the horizontal blade. A connecting hole and an arc-shaped track groove are provided on the housing. The rotating shaft is rotatably disposed in the connecting hole, and the track block is movably engaged with the arc-shaped track groove.

[0016] In the above-mentioned manual adjustment device for a blade-concealed air outlet, there is also an adjustment component that is movably arranged and extends through the width direction of the horizontal blade. An adjustment plate located outside the horizontal blade is movably connected to the adjustment component. Several air guide blades located in the air outlet channel are movably arranged inside the housing. The adjustment plate is movably connected to the air guide blades located in the middle position.

[0017] When the adjusting member moves along the length direction of the horizontal blade, the adjusting plate can drive several of the air guide blades to swing synchronously in the air outlet channel;

[0018] When the adjusting member drives the horizontal blade to rotate, the adjusting plate rotates relative to the horizontal blade without driving the several guide vanes to move.

[0019] In the aforementioned manual adjustment device for a blade-concealed air outlet, the adjustment component further includes:

[0020] A drive plate is provided, wherein a guide cavity is formed at the middle position of the horizontal blade along its length direction, and the drive plate is movably disposed in the guide cavity and abuts against the horizontal blade;

[0021] The connecting seat has one end of the adjusting plate movably connected to the connecting seat, and the other end has a U-shaped groove that is movably inserted into the air guide blade. The connecting seat has symmetrical locking grooves, and the end of the driving plate has a buckle block that is movably engaged in the locking groove.

[0022] In the aforementioned manual adjustment device for a blade-concealed air outlet, the horizontal blade is provided with a protrusion at the periphery of the guide cavity opening, and the end of the drive plate away from the snap-fit ​​block is formed with a handle portion, and a guide groove is provided in the handle portion, which is movably engaged with the protrusion.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention provides a manual adjustment device for a blade-concealed air outlet. Through the coordinated work of horizontal blades, upper concealed blades and lower concealed blades, the air outlet channel can be assisted by concealed blades whether it blows air upward or downward. While achieving the blowing effect of multiple horizontal blades in the traditional method, it also ensures that the blowing direction is more accurate. The overall structure is simple, occupies less internal space, and improves the user's comfort experience.

[0025] (2) The design uses a trajectory linkage to coordinate the movement of each blade, which simplifies the mechanical structure, reduces manufacturing costs, and improves the reliability and durability of the equipment.

[0026] (3) When the air outlet is in the main blowing state, the upper / lower hidden blades are closely attached to the top and bottom walls of the air outlet, which greatly reduces the internal space occupation and makes the design of the entire air outlet more concise and beautiful, which helps to increase market competitiveness.

[0027] (4) By installing a soft rubber bushing on the locking block, the abnormal noise caused by the track link hitting the upper / lower hidden blade when it moves up and down is effectively prevented.

[0028] (5) The drive plate is quick to install and remove through the snap-fit ​​structure, which provides convenience for subsequent maintenance and replacement. At the same time, with the cooperation of the protrusion and the guide groove, the accuracy and stability of the drive plate in adjusting several guide vanes are effectively guaranteed. Attached Figure Description

[0029] Figure 1 This is a perspective view of this application;

[0030] Figure 2 yes Figure 1 Schematic diagram of the cross section at point AA;

[0031] Figure 3 This is a schematic diagram of the installation structure between the arc-shaped track groove, horizontal blades, upper / lower hidden blades, and track connecting rods;

[0032] Figure 4 This is a schematic diagram of the trajectory linkage and the upper / lower hidden blades when the horizontal blade rotates to the lower limit position;

[0033] Figure 5 This is a schematic diagram of the trajectory linkage and the upper / lower hidden blades when the horizontal blade rotates to its upper limit position;

[0034] Figure 6 This is a schematic diagram of the installation structure of the adjusting components, adjusting plate, and air guide vanes;

[0035] Figure 7 It is an exploded view of the air guide vanes, regulating plates, connecting seats, horizontal blades, and drive plates.

[0036] In the diagram, 1 is the housing; 10 is the air outlet duct; 11 is the clearance groove; 12 is the connecting hole; 13 is the arc-shaped trajectory groove; 14 is the air guide vane; 140 is the fixing plate; 141 is the connecting plate; and 142 is the connecting column.

[0037] 20. Upper concealed blade; 21. Lower concealed blade; 220. Connecting shaft; 221. Engaging block; 221a. Soft rubber bushing;

[0038] 3. Horizontal blade; 30. Extension column; 31. Rotating shaft; 32. Track block; 33. Guide cavity; 34. Protrusion block;

[0039] 4. Track link; 40. Connecting part; 400. Mounting hole; 41. First link; 42. Second link; 430. Arc-shaped groove; 431. Relief groove;

[0040] 5. Adjusting component; 50. Adjusting plate; 500. U-shaped groove; 501. Anti-detachment block; 51. Drive plate; 510. Buckle block; 511. Handle part; 511a. Guide groove; 52. Connecting seat; 520. Locking groove. Detailed Implementation

[0041] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Example 1:

[0044] like Figures 1 to 7 As shown, this utility model discloses a manual adjustment device for a blade-concealed air outlet, comprising: a housing 1, which has an air outlet channel 10 disposed inside; an upper concealed blade 20 and a lower concealed blade 21, which are movably disposed on the upper and lower sides of the housing 1, respectively; a horizontal blade 3 and a track link 4, wherein the horizontal blade 3 is rotatably installed in the air outlet channel 10 of the housing 1 for adjusting the main air outlet direction of the air outlet channel 10; the middle position of the track link 4 is movably connected to the horizontal blade 3, and the upper and lower ends of the track link 4 are movably engaged with the upper concealed blade 20 and the lower concealed blade 21, respectively; when the horizontal blade 3 rotates relative to the housing 1 to the upper limit position, the track link 4 can drive the lower concealed blade 21 to swing into the air outlet channel 10, while the upper concealed blade 20 remains stationary and close to the top wall of the air outlet channel 10; when the horizontal blade 3 rotates relative to the housing 1 to the lower limit position, the track link 4 can drive the upper concealed blade 20 to swing into the air outlet channel 10, while the lower concealed blade 21 remains stationary and close to the bottom wall of the air outlet channel 10.

[0045] Specifically, such as Figures 1 to 2 As shown, without any adjustment, the upper concealed blade 20 and the lower concealed blade 21 are respectively attached to the top and bottom walls of the air outlet duct 10. At this time, air passes directly through the air outlet duct 10 along... Figure 2 The air is blown out in the direction shown, achieving a regular ventilation function. Viewed from the front (i.e., from...) Figure 2(Observed from right to left), this air outlet has only one horizontal blade 3, ensuring a simple and aesthetically pleasing appearance. When the user needs to adjust the airflow direction to upward, the horizontal blade 3 can be manually rotated to its lower limit position. As the horizontal blade 3 rotates, its movable connection point with the middle position of the track link 4 moves accordingly. Since the upper and lower ends of the track link 4 are respectively movably engaged with the upper hidden blade 20 and the lower hidden blade 21, the horizontal blade 3... Figure 2 State transition to Figure 4 During the process, the upper end of the trajectory linkage 4 will drive the upper hidden blade 20 to swing into the air outlet channel 10, while the lower hidden blade 21 remains stationary and close to the bottom wall of the air outlet channel 10, without affecting the airflow direction. This allows the air to be blown out along the upward-sloping cavity formed by the horizontal blade 3 and the upper hidden blade 20, achieving a precise blowing effect. Similarly, when the user rotates the horizontal blade 3 to... Figure 5 During the process shown, the lower end of the trajectory linkage 4 drives the lower hidden blade 21 to swing into the air outlet channel 10. The upper hidden blade 20 remains stationary and adheres tightly to the top wall of the air outlet channel 10, without interfering with the airflow, thus enabling the downward blowing function of the air outlet. Therefore, this air outlet structure, through the coordinated work of the horizontal blade 3 and the upper / lower hidden blades 21, can adjust the airflow direction according to actual needs. Whether blowing upwards or downwards, it can achieve more precise airflow control with the assistance of the upper / lower hidden blades 21. Furthermore, it can also maintain normal main airflow under the horizontal blade 3 (such as...) Figure 2 (as shown in the diagram) This allows the upper / lower hidden blades 21 to fit against the inner wall of the housing 1, reducing the space occupied inside and effectively ensuring the overall aesthetics, while also satisfying the user's desired blowing effect and the comfort brought by blowing.

[0046] The trajectory link 4 includes a connecting part 40 and a first link 41 and a second link 42 symmetrically distributed on both sides thereon. A mounting hole 400 is formed on the connecting part 40, and an extension post 30 is formed on the horizontal blade 3. The mounting hole 400 is movably connected to the extension post 30. The upper hidden blade 20 is movably engaged with the first link 41, and the lower hidden blade 21 is movably engaged with the second link 42.

[0047] like Figures 1 to 3 As shown, the trajectory link 4 in this embodiment consists of a connecting part 40, a first link 41, and a second link 42, and has an overall W-shaped design. The extension post 30 is inserted into the mounting hole 400, ensuring that the horizontal blade 3 rotates around the extension post 30 relative to the housing 1, thus guaranteeing smoothness and stability during airflow adjustment. Since the first link 41 and the second link 42 of the trajectory link 4 are symmetrically distributed on both sides of the connecting part 40, when the connecting part 40 moves downwards with the rotation of the horizontal blade 3, the first link 41 (… Figure 4 The upper hidden blade 20 is driven to move downward, thereby pushing the upper hidden blade 20 to swing into the air outlet channel 10. At the same time, the second connecting rod 42 and the lower hidden blade 21 move relative to each other, so that the lower hidden blade 21 continues to stick to the bottom wall of the air outlet channel 10. Similarly, when the connecting part 40 moves upward with the rotation of the horizontal blade 3, the second connecting rod 42 is driven to move upward. Finally, after the lower hidden blade 21 swings into the air outlet channel 10, the required downward blowing function is completed. The two situations are exactly opposite. By using the independent action of each connecting rod, it is ensured that while the airflow action is adjusted, the hidden blade on the other side can stably maintain its original position, thereby changing the direction and distribution of the airflow. This achieves the blowing effect achieved by using multiple horizontal blades 3 in the prior art, providing users with a more comfortable environmental experience.

[0048] One end of the upper hidden blade 20 and the lower hidden blade 21 are provided with a connecting shaft 220, and the other end is provided with a locking block 221. The connecting shaft 220 is movably connected inside the housing 1. The first connecting rod 41 and the second connecting rod 42 are both provided with arc-shaped sliding grooves 430, and the locking block 221 is movably locked into the arc-shaped sliding grooves 430.

[0049] Preferably, such as Figures 1 to 3 As shown, in this embodiment, the trajectory link 4 adopts a single-sided structure design within the air outlet duct 10 to save space in the entire housing 1. It is worth noting that the connecting shaft 220 in this embodiment also adopts a symmetrical design along the length of the upper / lower hidden blades 21, and the locking block 221 only needs to correspond to the position where the trajectory link 4 is to be installed. (Refer to...) Figure 3 As shown, when the horizontal blade 3 rotates around its axis (the axis is the extension column 30), the upper / lower hidden blades 21 can be driven to swing around their respective rotation centers (the rotation center is the axis of the connecting shaft 220) into the air outlet duct 10 via the first connecting rod 41 or the second connecting rod 42. It can be seen that the connecting shaft 220 provides a stable rotation center, and the cooperation between the locking block 221 and the arc-shaped slide 430 ensures precise control and smooth switching of the upper / lower hidden blades 21 between different positions. This structure not only simplifies the assembly process, but also optimizes the direction and distribution of airflow, improves ventilation efficiency, effectively avoids direct blowing to specific areas, and provides a more comfortable environmental experience.

[0050] Further preferably, continue to refer to Figure 3 In this embodiment, a soft rubber bushing 221a is also connected to the locking block 221. During the movement of the first connecting rod 41 / second connecting rod 42, on the one hand, the arc-shaped sliding groove 430 allows the locking block 221 to slide freely inside it, ensuring that the blade can smoothly move from one position to another; on the other hand, the soft rubber bushing 221a and the arc-shaped sliding groove 430 (which are generally arranged in a stepped shape, see reference) are connected. Figure 3 The smooth contact of the inner wall reduces the possibility of direct contact between mechanical parts and can also effectively prevent the trajectory link 4 from colliding with the upper / lower hidden blades 21 when it moves up and down with the horizontal blades 3, thus avoiding abnormal noise. This extends the service life and also ensures the working environment of the air outlet structure during operation.

[0051] Both the first link 41 and the second link 42 have clearance grooves 431, and both the upper and lower sides of the housing 1 have clearance slots 11. The clearance grooves 431 can provide rotation space for the upper / lower hidden blades 21; the first link 41 and the second link 42 can move through the clearance slots 11.

[0052] More preferably, such as Figures 3 to 5 As shown, since the movement of the first link 41 and the second link 42 is achieved by the rotation of the horizontal blade 3 driving the connecting part 40, the design of the clearance groove 431 provides additional rotation space for the upper / lower hidden blades 21, greatly ensuring the operating range and flexibility, and ensuring that the upper / lower hidden blades 21 can cooperate with the horizontal blades 3 within the required range to play an auxiliary blowing effect, thereby making the blowing direction more accurate and stable (see reference). Figure 4 and Figure 5 The air blowing posture effectively prevents the upper / lower hidden blades 21 from failing to achieve the required air blowing effect due to positional interference with the auxiliary linkage, thus ensuring the user's comfortable air blowing experience.

[0053] The horizontal blade 3 has a rotating shaft 31 and a track block 32 on both sides respectively. The housing 1 has a connecting hole 12 and an arc-shaped track groove 13. The rotating shaft 31 is rotatably installed in the connecting hole 12, and the track block 32 is movably engaged in the arc-shaped track groove 13.

[0054] like Figure 3As shown, in this embodiment, the rotating shaft 31 serves as the rotation center of the horizontal blade 3, distributed on both sides. Since the trajectory link 4 in this embodiment is only provided in one location to save space, a trajectory block 32 is also provided on the side of the horizontal blade 3 away from the trajectory link 4. When the user manually rotates the horizontal blade 3, the rotating shaft 31 rotates within the connecting hole 12, causing the horizontal blade 3 to swing in a set direction. Simultaneously, the trajectory block 32 slides along the arc-shaped trajectory groove 13. This not only limits the range of motion of the horizontal blade 3 but also provides precise guidance. As the angle of the horizontal blade 3 changes, the trajectory link 4 (first link 41 and second link 42) also stops or swings accordingly, thereby driving the movement of the upper / lower hidden blade 21. Therefore, the complementary cooperation of the rotating shaft 31 and the arc-shaped trajectory groove 13 reduces unnecessary shaking or offset, improves the overall stability of the structure, and effectively avoids direct friction between the horizontal blade 3 and other components during rotation, reducing the risk of wear and extending its service life.

[0055] Example 2:

[0056] This solution also includes an adjustable member 5 that is movable and extends through the width of the horizontal blade 3. An adjustable plate 50 located outside the horizontal blade 3 is movably connected to the adjustable member 5. Several guide vanes 14 located in the air outlet channel 10 are movably arranged inside the housing 1. The adjustable plate 50 is movably connected to the guide vanes 14 located in the middle position. When the adjustable member 5 moves along the length of the horizontal blade 3, the adjustable plate 50 can drive the several guide vanes 14 to swing synchronously in the air outlet channel 10. When the adjustable member 5 drives the horizontal blade 3 to rotate, the adjustable plate 50 rotates relative to the horizontal blade 3 without driving the several guide vanes 14 to move.

[0057] like Figures 4 to 7 As shown, this second embodiment is an improvement upon the first embodiment. Notably, the adjusting member 5 is entirely movably disposed within the horizontal blade 3, with its end furthest from the adjusting plate 50 extending outside the housing 1. This facilitates user adjustment of the airflow direction of the horizontal blade 3, providing convenience. When the adjusting member 5 drives the horizontal blade 3 to rotate around the axis of the rotating shaft 31, no relative movement occurs between the adjusting member 5 and the horizontal blade 3; however, when the adjusting member 5 moves along... Figure 6 During the longitudinal movement of the horizontal blade 3 shown, the adjusting member 5 can drive the adjusting plate 50 movably connected to it to move, thereby causing several guide vanes 14 to swing left and right within the air outlet channel 10, so as to achieve adjustment of left and right air outlet. It should be noted that the several guide vanes 14 in this embodiment are assembled from a connecting plate 141 and two upper and lower fixing plates 140, wherein, as shown Figure 6As shown, the upper and lower fixing plates 140 are used to limit the installation position of several air guide blades 14 in the housing 1. The fixing plates 140 can be connected to the housing 1 by screws, bolts and other components, while the connecting plate 141 is movably hinged to each air guide blade 14 to ensure that several air guide blades 14 can swing synchronously under the drive of the adjusting plate 50, thereby realizing the overall adjustment of the airflow direction.

[0058] The adjusting component 5 also includes: a drive plate 51, a guide cavity 33 is provided in the middle of the horizontal blade 3 along its length, the drive plate 51 is movably disposed in the guide cavity 33 and abuts against the horizontal blade 3; a connecting seat 52, one end of the adjusting plate 50 is movably connected to the connecting seat 52, and the other end forms a U-shaped groove 500 that is movably inserted into the air guide blade 14, the connecting seat 52 has symmetrically provided locking grooves 520, and the end of the drive plate 51 forms a buckle block 510, the buckle block 510 is movably engaged in the locking groove 520.

[0059] Furthermore, such as Figure 6 and Figure 7 As shown, in this second embodiment, part of the drive plate 51 is movable within the guide cavity 33, while the other part extends beyond the horizontal blade 3. Thus, when the user applies rotational force to the drive plate 51, this force can be directly transmitted to the horizontal blade 3, ultimately achieving a change in the main airflow direction by the horizontal blade 3. This is because the U-shaped groove 500 on the adjusting plate 50 is movably inserted into the connecting post 142 on the guide vane 14 (e.g., ...). Figure 7 As shown in the figure, the hinge between the connecting seat 52 and the adjusting plate 50 does not affect the angle of the guide vane 14 during the swing of the horizontal blade 3. On the contrary, during the movement of the drive plate 51 along the length of the horizontal blade 3 in the guide cavity 33, the connecting seat 52 can drive the adjusting plate 50 to swing synchronously. At this time, the cooperation between the U-shaped groove 500 and the connecting column 142 can drive several guide vanes 14 to swing synchronously, thereby adjusting the air outlet angle of the guide vane 14. Combined with the swing of the horizontal blade 3 in the air outlet channel 10, and the auxiliary blowing effect of the upper / lower hidden blades 21, the comfort of the user's blowing experience is greatly improved. Preferably, this embodiment can also provide a damper (not shown in the figure) in the drive plate 51 to control its left and right sliding operation force.

[0060] More preferably, such as Figures 6 to 7As shown, in this embodiment two, the snap-fit ​​block 510 and the locking groove 520 adopt a movable snap-fit ​​connection, realizing quick installation and disassembly between the two, providing convenience for subsequent maintenance and replacement, and extending the service life of the air outlet structure. Furthermore, in this embodiment two, the connecting seat 52 also has a portion of its structure movablely snapped into the guide cavity 33. Utilizing the limiting effect of the guide cavity 33, the smoothness and accuracy of the connecting seat 52 driving the adjusting plate 50 in reciprocating motion are ensured. In addition, this embodiment two also provides an anti-detachment block 501 (e.g., at the opening of the U-shaped groove 500) at the opening of the U-shaped groove 500. Figure 7 As shown, the anti-detachment block 501 can effectively prevent the adjusting plate 50 from detaching from the connecting post 142, ensuring the smoothness and stability of the two during relative movement, and ensuring that the various components can work together smoothly and accurately.

[0061] The horizontal blade 3 is provided with a protrusion 34 located at the periphery of the opening of the guide cavity 33. The end of the drive plate 51 away from the latch block 510 is formed with a handle portion 511. A guide groove 511a is provided in the handle portion 511, and the guide groove 511a is movably engaged with the protrusion 34.

[0062] More preferably, such as Figure 7 As shown, the handle 511 is completely outside the horizontal blade 3, which helps to increase the overall width of the horizontal blade 3, so that the user can indirectly adjust the tilt angle of the horizontal blade 3. During the process of adjusting the air guide blade 14 to guide the air left and right, the tight cooperation between the protrusion 34 and the guide groove 511a enhances the stability between the drive plate 51 and the horizontal blade 3, so that the two can work together smoothly and accurately, reducing the problem of loosening or misalignment between components, thereby ensuring the precise movement of the drive plate 51 in the length direction of the horizontal blade 3, avoiding unnecessary offset or shaking, and improving the operating accuracy of the air outlet structure.

[0063] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0065] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A manual adjustment device for a blade-concealed air outlet, characterized in that, include: The casing has an internal air outlet channel; The upper and lower hidden blades are movably disposed on the upper and lower sides of the housing, respectively; A horizontal blade and a trajectory link are provided. The horizontal blade is rotatably installed in the air outlet channel of the housing to adjust the main air outlet direction of the air outlet channel. The middle part of the trajectory link is movably connected to the horizontal blade, and the upper and lower ends of the trajectory link are respectively movably engaged with the upper hidden blade and the lower hidden blade. When the horizontal blade rotates to its upper limit position relative to the housing, the trajectory link can drive the lower hidden blade to swing into the air outlet channel, while the upper hidden blade remains stationary and close to the top wall of the air outlet channel. When the horizontal blade rotates to its lower limit position relative to the housing, the trajectory link can drive the upper hidden blade to swing into the air outlet channel, while the lower hidden blade remains stationary and close to the bottom wall of the air outlet channel.

2. The manual adjustment device for a blade-concealed air outlet according to claim 1, characterized in that, The trajectory link includes a connecting part and a first link and a second link symmetrically distributed on both sides thereon. The connecting part has a mounting hole, and the horizontal blade has an extension post. The mounting hole is movably connected to the extension post. The upper hidden blade is movably engaged with the first link, and the lower hidden blade is movably engaged with the second link.

3. The manual adjustment device for a blade-concealed air outlet according to claim 1, characterized in that, The upper hidden blade and the lower hidden blade are completely hidden inside the housing when the horizontal blade is in the middle position.

4. The manual adjustment device for a blade-concealed air outlet according to claim 2, characterized in that, One end of the upper hidden blade and the lower hidden blade are provided with a connecting shaft, and the other end is provided with a locking block. The connecting shaft is movably connected to the housing. The first connecting rod and the second connecting rod are both provided with arc-shaped sliding grooves, and the locking block is movably engaged with the arc-shaped sliding grooves.

5. The manual adjustment device for a blade-concealed air outlet according to claim 4, characterized in that, The locking block is also connected to a soft rubber bushing to prevent abnormal noise when the upper / lower hidden blades swing relative to the housing.

6. The manual adjustment device for a blade-concealed air outlet according to claim 2, characterized in that, Both the first and second connecting rods have clearance grooves, and both the upper and lower sides of the housing have clearance slots. The clearance grooves provide rotation space for the upper / lower hidden blades. The first and second connecting rods move through the clearance slots.

7. The manual adjustment device for a blade-concealed air outlet according to claim 1, characterized in that, The horizontal blade is provided with a rotating shaft and a track block on both sides. The housing is provided with a connecting hole and an arc-shaped track groove. The rotating shaft is rotatably disposed in the connecting hole, and the track block is movably engaged with the arc-shaped track groove.

8. The manual adjustment device for a blade-concealed air outlet according to claim 1, characterized in that, It also includes an adjustable member that is movable and extends through the width direction of the horizontal blade. An adjustable plate located outside the horizontal blade is movably connected to the adjustable member. Several air guide blades located in the air outlet channel are movably arranged inside the housing. The adjustable plate is movably connected to the air guide blades located in the middle position. When the adjusting member moves along the length direction of the horizontal blade, the adjusting plate can drive several of the air guide blades to swing synchronously in the air outlet channel; When the adjusting member drives the horizontal blade to rotate, the adjusting plate rotates relative to the horizontal blade without driving the several guide vanes to move.

9. A manual adjustment device for a blade-concealed air outlet according to claim 8, characterized in that, The adjusting component further includes: A drive plate is provided, wherein a guide cavity is formed at the middle position of the horizontal blade along its length direction, and the drive plate is movably disposed in the guide cavity and abuts against the horizontal blade; The connecting seat has one end of the adjusting plate movably connected to the connecting seat, and the other end has a U-shaped groove that is movably inserted into the air guide blade. The connecting seat has symmetrical locking grooves, and the end of the driving plate has a buckle block that is movably engaged in the locking groove.

10. A manual adjustment device for a blade-concealed air outlet according to claim 9, characterized in that, The horizontal blade is provided with a protrusion at the periphery of the guide cavity opening. The end of the drive plate away from the snap block is formed with a handle portion. A guide groove is provided in the handle portion, and the guide groove is movably engaged with the protrusion.

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