Louver wind shielding unit and louver wind shielding device

Abstract

The utility model belongs to the technical field of air guide, and provides a shutter wind shielding unit and a shutter wind shielding device, aiming at solving the problem that the cost of replacing an air conditioner wind shielding plate is too high because the existing air conditioner wind shielding plate cannot adapt to air outlets of different air conditioners in different lengths. Wherein the shutter wind shielding unit comprises a supporting arm, a wind shielding blade rotationally connected with the supporting arm, a linkage mechanism and a power input end, the power input end provides rotating power for the wind shielding blade through the linkage mechanism and enables the wind shielding blade to rotate relative to the supporting arm, and the length direction of the supporting arm is the same as the length direction of an air outlet of the air conditioner. The technical problem can be effectively solved by using the shutter wind blocking unit.

Description

Technical Field

[0001] This utility model belongs to the field of air guiding technology and relates to a louvered wind deflector unit and a louvered wind deflector device. Background Technology

[0002] Air conditioning is an appliance that regulates indoor air temperature and is now widely used in people's daily lives. However, during the use of air conditioning, it has been found that the airflow blowing directly on people may make them more susceptible to colds, air conditioning sickness, and other illnesses. Therefore, air conditioning deflectors, which are devices placed at the air outlet of air conditioners, were invented. The working principle of an air conditioning deflector is to block or change the direction of the airflow, thereby reducing or avoiding direct airflow and mitigating the health risks associated with air conditioning to some extent. However, it is undeniable that after being treated by an air conditioning deflector, the airflow is unidirectional, and because the length of the deflector is pre-made, it cannot be adapted to air conditioners with different outlet lengths, affecting its usability and resulting in a poor overall user experience. Utility Model Content

[0003] One technical problem this invention aims to solve is that the length of the air conditioner deflector cannot be adapted to air conditioner vents of different lengths, potentially leading to high costs associated with replacing the deflector. To address this, this invention provides a louvered deflector unit. This unit, used to block airflow from the air conditioner vent, includes a support arm, deflector blades rotatably connected to the support arm, a linkage mechanism, and a power input end that provides rotational power to the deflector blades relative to the support arm. The length direction of the support arm is the same as the length direction of the air conditioner vent. Because the length direction of the support arm is the same as the length direction of the air conditioner vent, only the support arm of different lengths needs to be replaced, without simultaneously replacing the deflector blades of different lengths, significantly reducing replacement costs. Another technical problem solved by this utility model is that the air conditioning deflector has a single airflow direction when adjusting the airflow direction of the air conditioner. Generally speaking, when the air conditioner blows into the deflector, part of the air conditioner air will become a rebound wind towards the air conditioner outlet, while the rest of the air conditioner air will only be refracted wind blown along the edge of the deflector. The air conditioner user ultimately feels the refracted wind. The direction of this wind is usually unidirectional and only changes with the rotation angle of the deflector. To this end, this utility model also provides a louvered deflector unit, which adds an external end connecting to another support arm at least at one end of the support arm.

[0004] Within the same louvered wind deflector unit, the wind deflector blades are controlled by a linkage mechanism, ensuring that their rotation angles on the support arm are identical. This allows the airflow from the air conditioner, directed towards the louvered wind deflector unit, to form a unidirectional refracted wind. However, the outer end of the support arm can be connected to another support arm, and the wind deflector blades under this other support arm can employ different rotation angles, thus creating refracted winds in different directions to meet the varying airflow needs of air conditioner users. Alternatively, the wind deflector blades under the other support arm can be controlled to ensure that all wind deflector blades rotate at the same angle. Furthermore, the louvered wind deflector unit of this invention can be connected to another louvered wind deflector unit via the outer end of the support arm, thereby changing the wind deflector length to accommodate air conditioners with different outlet lengths.

[0005] This utility model also adopts the following technical solution:

[0006] The external end includes an opening through which the linkage mechanism passes to access the support arm connected to the external end;

[0007] The external end includes an isolation wall that isolates the linkage mechanism to prevent the linkage mechanism from entering the support arm connected to the external end;

[0008] The external end also includes an isolation plate that opens or closes an opening. When the isolation plate opens, the linkage mechanism passes through the opening to enter the support arm connected to the external end. When the isolation plate closes the opening, the isolation plate isolates the linkage mechanism to prevent the linkage mechanism from entering the support arm connected to the external end.

[0009] A rotating joint is provided between the support arm and the wind deflector blade. The rotating joint includes a rotating bearing, a rotating shaft that rotates on the rotating bearing, and a slide for the rotating shaft to slide into or out of the rotating bearing hole.

[0010] The external end is provided with a slot and / or a block, wherein the slot and the block are at least partially matched.

[0011] The support arm has an internal space for accommodating the linkage mechanism;

[0012] A limiting block and a blocking wall are provided between the support arm and the linkage mechanism. When the linkage mechanism drives the windshield blade to rotate, the limiting block moves toward the blocking wall and is eventually blocked by the blocking wall and stops moving.

[0013] The limiting block is located at the end of the linkage mechanism, and the blocking wall is set on the side of the support arm facing the end of the linkage mechanism;

[0014] Both the upper and lower parts of the wind deflector blade are provided with abutting surfaces. When the abutting surface of the lower part of the wind deflector blade rotates to the upper part of the adjacent wind deflector blade and abuts against the abutting surface of the upper part of the adjacent wind deflector blade, it prevents the wind deflector blade from rotating relative to the support arm.

[0015] The power input end includes an operating lever that extends toward the user of the louvered wind deflector unit;

[0016] The power input end is provided with a protrusion located between the linkage mechanism and the support arm, and both the linkage mechanism and the support arm are provided with blocking surfaces to block the protrusion.

[0017] The support arm is also provided with a stop to prevent the linkage mechanism from moving within the accommodating space;

[0018] The operating lever is located at one end of the louvered windbreak unit or outside the rotation space of the windbreak blades;

[0019] The stop is a cover plate that covers the accommodating space;

[0020] The support arm and the windshield blade are connected by a rotating joint. The rotating joint includes a rotating bearing mounted on the support arm and a rotating shaft rotating on the rotating bearing. The rotating shaft is connected to the windshield blade. The linkage mechanism has a rack on the side facing the rotating shaft, and the rotating shaft has a gear that matches the rack; or, the linkage mechanism has a worm gear on the side facing the rotating shaft, and the rotating shaft has a worm wheel that matches the worm; or, the linkage mechanism has a linkage rod on the side facing the rotating shaft, and the rotating shaft has a rotating bar that connects to the linkage rod, and the rotating bar is rotatably connected to the linkage rod; or, the linkage mechanism includes a linkage gear located between two adjacent rotating shafts, and the rotating shaft has a gear that matches the linkage gear.

[0021] The linkage mechanism is a rack or a linkage gear on the side facing the power input end, and the power input end is provided with a power gear or a power worm gear that matches the rack; or, the linkage mechanism is a worm gear on the side facing the power input end, and the power input end is provided with a connecting shaft connected to the worm gear; or, the linkage mechanism is a linkage rod on the side facing the power input end, and the power input end is provided with a push-pull bar connected to the linkage rod; the power input end also includes an operating rod extending towards the user of the louvered wind deflector unit, and the operating rod is directly or indirectly connected to one of the power gear, the power worm gear, the connecting shaft, and the push-pull bar;

[0022] When the linkage mechanism has a rack on the side facing the power input end, one end of the operating lever is directly connected to the power gear, or one end of the operating lever has a thread that matches the power gear, or one end of the operating lever is directly or indirectly connected to one end of the power worm gear; when the linkage mechanism has a worm gear on the side facing the power input end, the operating lever is directly or indirectly connected to the connecting shaft; when the linkage mechanism has a linkage rod on the side facing the power input end, the push-pull bar is fixedly or rotatably connected to the linkage rod, the operating lever is connected to the push-pull bar, or the push-pull bar is rotatably connected to the operating lever, or the power input end also includes a first transmission gear located between the operating lever and the push-pull bar, the first transmission gear is connected to the push-pull bar, and one end of the operating lever has a thread that matches the first transmission gear;

[0023] When one end of the operating lever is indirectly connected to the power worm gear, the power input end further includes a first bevel gear and a second bevel gear at one end of the operating lever, with the first bevel gear and the second bevel gear engaging with each other; or, the power input end further includes a second transmission gear at one end of the power worm gear, and one end of the operating lever is provided with a thread matching the second transmission gear. When the operating lever is indirectly connected to the connecting shaft, the power input end further includes a third bevel gear at one end of the operating lever and a fourth bevel gear at one end of the connecting shaft, with the third bevel gear and the fourth bevel gear engaging with each other; or, the power input end further includes a third transmission gear at one end of the connecting shaft, and one end of the operating lever is provided with a thread matching the third transmission gear.

[0024] The support arm is provided with an external connection position for fixing the support arm to the air conditioner outlet, the external connection position including one of a slide rail, a slider, or a mounting position;

[0025] In addition, this utility model also provides a louvered windbreak device, including at least two louvered windbreak units and a connector connecting two adjacent louvered windbreak units, wherein the end of the connector is a connecting sleeve that covers the external end or a plug that is inserted into the external end.

[0026] In the louvered windbreak device, the connector is provided with a channel through which the linkage mechanism passes to enter the support arm adjacent to the support arm from the support arm;

[0027] In the louvered windbreak device, the connector is also provided with a switch to open or close the channel. When the switch opens the channel, the linkage mechanism passing through the connector can pass through the channel to enter the support arm connected to the connector. When the switch closes the channel, the linkage mechanism passing through the connector cannot pass through the channel to prevent the linkage mechanism from entering the support arm connected to the external end.

[0028] In the louvered windbreak device, the connector is provided with a closure, which closes the channel to prevent the linkage mechanism from entering the support arm adjacent to the support arm through the connector.

[0029] In the louvered wind deflector, the support arm and the wind deflector blades are connected by a rotating joint. The rotating joint includes a rotating bearing mounted on the support arm and a rotating shaft rotating on the rotating bearing. The rotating shaft is connected to the wind deflector blades. The linkage mechanism includes a linkage gear located between two adjacent rotating shafts. The rotating shaft has a gear that matches the linkage gear. The outer end of the support arm includes an opening. The connector has a channel for at least some teeth of the linkage gear adjacent to the opening to enter and a connecting slot for connecting to the outer end of the support arm. The connecting slot includes a near-connecting slot and a far-connecting slot. When the outer end of the support arm is connected to the connector and is in the near-connecting slot, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector mesh with each other. When the outer end of the support arm is connected to the connector and is in the far-connecting slot, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector separate from each other.

[0030] In the louvered windbreak device, the connector further includes a transition gear that meshes with the linkage gear. When the outer end of the support arm is connected to the connector and is in the near connection position, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector mesh with the transition gear. When the outer end of the support arm is connected to the connector and is in the far connection position, at least one of the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector is separated from the transition gear. Attached Figure Description

[0031] Figure 1 This is a disassembly diagram of one end of the louvered windbreak unit described in Embodiment 1;

[0032] Figure 2 The diagram shows the structure of the support arms in the louvered windbreak unit of two embodiments 1 when they are to be connected in series.

[0033] Figure 3 This diagram illustrates the disassembly of the support arms in the two louvered windbreak units of the louvered windbreak device described in Embodiment 8, which are connected in series by a connector.

[0034] Figure 4 exist Figure 1 Based on this, a disassembly diagram was created after adding the power input end;

[0035] Figure 5 It shows another kind of difference from Figure 4 A schematic diagram formed by the power input end;

[0036] Figure 6 yes Figure 5 A comparative structural diagram showing the structure before and after assembly;

[0037] Figure 7 This is a schematic diagram of the structure of one end of another louvered windbreak unit described in Embodiment 2;

[0038] Figure 8 This is a schematic diagram of the structure of one end of another louvered windbreak unit described in Embodiment 3;

[0039] Figure 9 This is a schematic diagram of the structure of one end of another louvered windbreak unit described in Embodiment 4;

[0040] Figure 10 This is a schematic diagram of the structure of one end of another louvered windbreak unit described in Embodiment 5;

[0041] Figure 11 This is a schematic diagram of the structure of one end of another louvered windbreak unit described in Embodiment 6;

[0042] Figure 12 This is a schematic diagram of the disassembly structure of the support arm and connecting parts in a special louvered windbreak device described in Example 9;

[0043] Figure 13 This is a schematic diagram of the support arm described in Embodiment 10;

[0044] Figure 14 This is a schematic diagram of the disassembly structure of the support arm and connecting parts in the improved louvered windbreak device of Embodiment 9. Detailed Implementation

[0045] This section provides a detailed description of the utility model's content.

[0046] This invention provides a louvered wind deflector unit that blocks the airflow from an air conditioner vent. It includes a support arm, wind deflector blades rotatably connected to the support arm, a linkage mechanism, and a power input end that provides rotational power to the wind deflector blades relative to the support arm. The length of the support arm is the same as the length of the air conditioner vent. To accommodate air conditioners with different vent lengths, it is generally necessary to replace all existing wind deflectors. However, the louvered wind deflector unit of this invention only requires replacing the original support arm with one of the same length as the air conditioner vent. The wind deflector blades rotatably connected to the original support arm do not need to be replaced and can continue to be used, thus greatly reducing replacement costs. If replacing the original support arm is not considered, this utility model also provides another solution: adding an external end to one end of the support arm to connect to another support arm. The user places the louvered wind deflector unit facing the air conditioner vent. Typically, its length covers the entire air conditioner vent, ensuring all airflow passes through the louvered wind deflector unit. For air conditioners with longer vents, multiple louvered wind deflector units can be connected in series using the external end of the support arm. Therefore, the louvered wind deflector unit of this utility model has a wider range of applications and further reduces costs. In practical use, the louvered wind deflector unit can include multiple support arms rotatably connecting the wind deflector blades, such as two parallel support arms. These parallel support arms support both ends of the wind deflector blades, providing more even support. However, this approach involves more series connection operations when multiple louvered wind deflector units need to be connected in series, making it more time-consuming and labor-intensive. Therefore, the louvered wind deflector unit of this utility model tends to have only one support arm. By connecting multiple louvered wind deflector units in series using the external connection of the louvered wind deflector unit described in this utility model, the air conditioner can be provided with multiple air outlet directions. Specifically, the wind deflector blades rotatably connected to the same support arm rotate synchronously under the action of the same linkage mechanism. The air conditioner can form a single-direction air outlet under the action of the wind deflector blades. After multiple support arms are connected in series with each other under the action of the external connection, the wind deflector blades connected to different support arms can rotate at different angles, thereby forming air conditioner air outlets in multiple directions.

[0047] In some embodiments, the outer end of the support arm of the louvered wind deflector unit includes an isolation wall. This isolation wall isolates the linkage mechanism, preventing it from entering the support arm connected to the outer end. When such louvered wind deflector units are connected in series, the linkage mechanisms in two adjacent support arms connected in series will not connect and interact, ensuring air conditioning airflow from multiple directions to meet the needs of air conditioning users for multiple airflow directions. However, in other embodiments, specifically to accommodate air conditioners with longer air outlets, the outer end of the support arm of the louvered wind deflector unit includes an opening. This opening allows the linkage mechanism to pass through and enter the support arm connected to the outer end, thereby simultaneously and synchronously controlling the rotation of the corresponding wind deflector blades. Therefore, even when the louvered wind deflector units in these embodiments are connected in series through the outer ends of the support arms, they can still synchronously control all wind deflector blades to produce a single air conditioning airflow.

[0048] Another embodiment involves an outer end of the support arm of the louvered wind deflector unit that includes an insulating plate with an opening that can be opened or closed. When the insulating plate is open, the linkage mechanism can pass through the opening to enter the support arm connected to the outer end. When the insulating plate is closed, it isolates the linkage mechanism, preventing it from entering the support arm. This significantly improves performance: when the insulating plate is open, the louvered wind deflector units connected in series can accommodate air conditioners with longer air outlets; when the insulating plate is closed, the louvered wind deflector units not only accommodate air conditioners with longer air outlets but also allow independent control of the rotation angle of the deflector blades on different louvered wind deflector units, resulting in airflow from various directions. Air conditioner users can connect multiple louvered wind deflector units in series, such as two, three, five, or more, to achieve the technical effects mentioned in this paragraph.

[0049] Regarding the configuration of the external connection end to allow the louvered windbreak units to be connected in series, those skilled in the art can use common connection methods to connect the louvered windbreak units in series. They also understand the necessary structures required at each connection end before connection using these methods (e.g., snap-fit, splicing, etc.), and how to apply these structural configurations to the connection end of the support arm. Here, this utility model provides a simple connection structure: the external connection end is provided with a slot and / or a block, the slot and the block at least partially matching. When the louvered windbreak units are connected in series, at least a portion of the blocks are inserted into the slot.

[0050] This utility model typically includes a space within the support arm to accommodate the linkage mechanism, resulting in a smaller overall volume for the louvered windbreak unit. A limiting block and a blocking wall are provided between the support arm and the linkage mechanism. When the linkage mechanism drives the windbreak blades to rotate, the limiting block moves towards the blocking wall and is eventually stopped by the blocking wall, thus stopping the linkage mechanism and controlling the windbreak blades to rotate within a certain angle range. In a special case, the limiting block is located at the end of the linkage mechanism, and the blocking wall is located on the side of the support arm facing the end of the linkage mechanism. When the linkage mechanism drives the windbreak blades to rotate, the linkage mechanism moves relative to the support arm, causing the end of the linkage mechanism to be stopped by the side of the support arm facing the end of the linkage mechanism. In some embodiments, the limiting block and blocking wall are not provided between the support arm and the linkage mechanism; instead, abutment surfaces are provided at both the upper and lower parts of the windbreak blades. When the abutment surface at the lower part of the windbreak blade rotates to the upper part of an adjacent windbreak blade and abuts against the abutment surface at the upper part of the adjacent windbreak blade, it prevents the windbreak blades from rotating relative to the support arm.

[0051] To clarify, ordinary air conditioners typically also have deflector blades, and these are controlled by a remote control motor that drives the blades to rotate. However, this control method has two significant problems: First, when the remote control is pressed, the deflector blades rotate at a relatively rapid rate, meaning the adjustment precision is low. Second, the deflector blades generally rotate to their maximum angle in one direction before rotating in the opposite direction. If the desired deflector angle is missed, one must wait for the blades to continue rotating in the original direction to their maximum angle, and then observe whether the blades have reached the desired angle during the reverse rotation. Both of these points make it difficult to achieve the required deflector blade rotation angle using the current electric method. Therefore, this invention tends to configure the power input end as a manual input method. To facilitate manual power input, in some embodiments, the power input end includes an operating lever extending towards the user of the louvered windbreak unit. One end of the operating lever has a protrusion located between the linkage mechanism and the support arm. Both the linkage mechanism and the support arm have blocking surfaces that block the protrusion, restricting the protrusion between the linkage mechanism and the support arm, preventing the operating lever from disengaging from the linkage mechanism and losing direct or indirect control over the linkage mechanism. In some embodiments, the operating lever is located at one end of the louvered windbreak unit, away from the windbreak blades. Alternatively, the operating lever can be located outside the rotation space of the windbreak blades to prevent the windbreak blades from hitting the operating lever during rotation.

[0052] The present invention provides a rotating joint between the support arm and the windshield blade. The rotating joint includes a rotating bearing and a rotating shaft that rotates on the rotating bearing. Regarding the linkage mechanism, the present invention provides four main structures: The first linkage mechanism has a rack facing the rotating shaft, and the rotating shaft is equipped with a gear matching the rack. Through the meshing of the rack and gear, the linkage mechanism drives the windshield blade to rotate. The second linkage mechanism has a worm facing the rotating shaft, and the rotating shaft is equipped with a worm wheel matching the worm. Through the meshing of the worm and worm wheel, the linkage mechanism drives the windshield blade to rotate. The third linkage mechanism has a linkage rod facing the rotating shaft, and the rotating shaft is equipped with a rotating bar connecting the linkage rod. The rotating bar is rotatably connected to the linkage rod, thereby causing the linkage mechanism to drive the windshield blade to rotate. The fourth linkage mechanism includes a linkage gear located between two adjacent rotating shafts. The rotating shaft is equipped with a gear matching the linkage gear, and the rotation of the linkage gear drives the windshield blade to rotate.

[0053] Regarding the power input end, this utility model also provides three main structures: When the side of the linkage mechanism facing the power input end is a rack or a linkage gear, the first type of power input end is provided with a power gear or a power worm that matches the rack or linkage gear, driving the rack to move or the linkage gear to rotate through the power gear or the power worm; when the side of the linkage mechanism facing the power input end is a worm, the power input end is provided with a connecting shaft connected to the worm, driving the worm to rotate through the connecting shaft; when the side of the linkage mechanism facing the power input end is a linkage rod, the power input end is provided with a push rod connected to the linkage rod. The pull bar moves the linkage rod by pushing and pulling the bar. It should be noted that the structure of one side of the linkage mechanism can be different from that of the other side. For example, one side of the linkage mechanism is equipped with a rack and pinion while the other side is a linkage rod. Therefore, if it is necessary to connect to both sides of the linkage mechanism, the structures of each side of the linkage mechanism need to be matched. In order to avoid the drawbacks of the aforementioned electric remote control of the wind deflector blade rotation, an operating rod extending towards the user of the louvered wind deflector unit, as used in some embodiments, is introduced into the power input end. The operating rod is directly or indirectly connected to one of the power gear, power worm gear, connecting shaft, and push and pull bar.

[0054] This utility model provides some specific connection methods. For example, when the side of the linkage mechanism facing the power input end is a rack or a linkage gear, one end of the operating rod is directly connected to the power gear, or one end of the operating rod is provided with a thread that matches the power gear, or one end of the operating rod is directly or indirectly connected to one end of the power worm gear; when the side of the linkage mechanism facing the power input end is a worm gear, the operating rod is directly or indirectly connected to the connecting shaft; when the side of the linkage mechanism facing the power input end is a linkage rod, the push-pull bar is fixedly or rotatably connected to the linkage rod, the operating rod is connected to the push-pull bar, or the push-pull bar is rotatably connected to the linkage rod, or the power input end also includes a transmission gear located between the operating rod and the push-pull bar, the first transmission gear is connected to the push-pull bar, and one end of the operating rod is provided with a thread that matches the first transmission gear.

[0055] This utility model also provides some specific connection methods when one end of the operating lever is indirectly connected to the power worm gear and the connecting shaft respectively. When one end of the operating lever is indirectly connected to the power worm gear, the power input end further includes a first bevel gear and a second bevel gear disposed at one end of the operating lever, the first bevel gear and the second bevel gear being engaged with each other; or; the power input end further includes a second transmission gear disposed at one end of the power worm gear, and one end of the operating lever is provided with a thread matching the second transmission gear. When the operating lever is indirectly connected to the connecting shaft, the power input end further includes a third bevel gear and a fourth bevel gear disposed at one end of the operating lever, the third bevel gear and the fourth bevel gear being engaged with each other; or; the power input end further includes a third transmission gear disposed at one end of the worm gear, and one end of the operating lever is provided with a thread matching the third transmission gear.

[0056] The support arm is also provided with an external connection position for fixing the support arm to the air outlet of the air conditioner. The external connection position includes one of a slide rail, a slider, or a mounting position. By using a bracket that is hung on the air conditioner and selecting a structure that matches the slide rail, slider, or mounting position, the support arm can be fixed in the position facing the air outlet of the air conditioner. Those skilled in the art can select the connection point between the bracket and the support arm. Obviously, the connection point can be fixed or it can be movable along the slide rail.

[0057] Although the louvered windbreak device described in this utility model can be directly connected in series with each other through the external end of the support arm, it is necessary to set the external end of the support arm into a structure that can be interconnected, which increases the production cost. Therefore, this utility model provides a louvered windbreak device, thereby disclosing another way to connect the louvered windbreak units in series. The device includes at least two louvered windbreak units and a connector connecting two adjacent louvered windbreak units. The end of the connector is a connecting sleeve that covers the external end or a plug that is inserted into the external end. At least the use of the connecting sleeve can eliminate the need to set up an external structure for the external end of the support arm, as it can be directly covered by the connecting sleeve.

[0058] Similar to structures such as openings at the outer end of the support arm, some embodiments of the connector have a channel through which the linkage mechanism passes to enter the support arm adjacent to the support arm. Some embodiments of the connector also have a switch to open or close the channel. When the switch opens the channel, the linkage mechanism passing through the connector can pass through the channel to enter the support arm connected to the connector. When the switch closes the channel, the linkage mechanism passing through the connector cannot pass through the channel, thus preventing the linkage mechanism from entering the support arm connected to the outer end.

[0059] In some embodiments, the connector is provided with a closure that isolates the linkage mechanism to prevent the linkage mechanism from entering the support arm adjacent to the support arm through the connector.

[0060] In some embodiments, the support arm and the windshield blade are connected by a rotating joint. The rotating joint includes a rotating bearing mounted on the support arm and a rotating shaft rotating on the rotating bearing. The rotating shaft is connected to the windshield blade. The linkage mechanism includes a linkage gear located between two adjacent rotating shafts. The rotating shaft has a gear that matches the linkage gear. The outer end of the support arm includes an opening. The connector has a channel for at least some teeth of the linkage gear adjacent to the opening to enter and a connecting slot for connecting to the outer end of the support arm. The connecting slot includes a near-connecting slot and a far-connecting slot. When the outer end of the support arm is connected to the connector and is in the near-connecting slot, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector mesh with each other. When the outer end of the support arm is connected to the connector and is in the far-connecting slot, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector separate from each other. Thus, when the outer end of the support arm is connected to the connector and in the near-connection position, all the wind deflector blades can rotate synchronously. However, when the outer end of the support arm is connected to the connector and in the far-connection position, the wind deflector blades in each louvered wind deflector unit do not rotate synchronously. After the aforementioned linkage gears adjacent to the opening mesh with each other, the wind deflector blades rotatably connected to the two adjacent support arms can rotate simultaneously, but in completely opposite directions. Therefore, in another embodiment, the connector also includes a transition gear that meshes with the linkage gear. When the outer end of the support arm is connected to the connector and in the near-connection position, the linkage gears adjacent to the opening of the two support arm outer ends connected by the connector mesh with the transition gear. When the outer end of the support arm is connected to the connector and in the far-connection position, at least one of the linkage gears adjacent to the opening of the two support arm outer ends connected by the connector is disengaged from the transition gear. This ensures that the wind deflector blades rotatably connected to the two adjacent support arms rotate in the same direction. Example

[0061] See Figure 1 This embodiment provides a louvered windbreak unit. Figure 1The structure of one end of the louvered windbreak unit is shown, including a support arm 5, windbreak blades 1, and a linkage mechanism. A rotating shaft 9 extends from the middle of the windbreak blade 1 towards the support arm. A rotating bearing 3 is provided at the corresponding position of the support arm 5 and the rotating shaft 9. The rotating shaft 9 is inserted into the rotating bearing 3 to form a rotating joint. To facilitate the installation and removal of the rotating shaft 9 on the rotating bearing 3, the rotating bearing 3 is provided with a slide 10 for the rotating shaft 9 to slide into the rotating bearing hole. The side of the connecting mechanism facing the windbreak blade 1 is a rack 7. The support arm 5 has a receiving space 4 to accommodate the linkage mechanism. A gear 2 matching the rack 7 is provided on the rotating shaft 9. The reciprocating motion of the rack 7 within the receiving space 4 of the support arm 5 can drive the wind deflector 1 to rotate relative to the support arm 5 via the gear 2. The reciprocating motion of the linkage mechanism within the receiving space 4 is restricted, one reason being to ensure that the rotation angle of the wind deflector 1 relative to the support arm 5 is within a certain range, such as 0°-180°, 30°-120°, etc. Therefore, in this embodiment, a blocking wall 6 is provided on the linkage mechanism, and a limiting block 8 is provided within the support arm 5. The reciprocating motion of the linkage mechanism within the receiving space 4 is restricted by the movement of the limiting block 8 relative to the blocking wall 6. That is, when the blocking wall 6 blocks the limiting block 8, the linkage mechanism stops moving.

[0062] As a replacement for the louvered windbreak unit described in this embodiment, the distance between the two windbreak blades 1 is shorter, for example, less than the width of the windbreak blade 1. An abutment surface 22 is provided on the upper part of the windbreak blade 1, and an abutment surface 21 is provided on the lower part of the windbreak blade 1. When the abutment surface 21 at the lower part of the windbreak blade abuts against the abutment surface 22 at the upper part of the windbreak blade, it can prevent the windbreak blade from continuing to rotate. This can replace the function of the limiting block 8 and the blocking wall 6. However, the limiting block 8 and the blocking wall 6 can set the rotation angle of the windbreak blade 1 within any rotation range; only the maximum distance between the limiting block 8 and the blocking wall 6 needs to be adjusted. To prevent the linkage mechanism from disengaging from the receiving space, a stop is provided on the top of the limiting block 8. The stop blocks the linkage mechanism, allowing it to move within the receiving space. A special type of stop is a cover plate that covers the receiving space.

[0063] As an alternative to the louvered windbreak unit described in this embodiment, a limiting block 24 is provided at the end of the linkage mechanism, and a blocking wall 23 is provided on the side of the support arm facing the end of the linkage mechanism. When the blocking wall 23 abuts against the limiting block 24, the linkage mechanism can stop moving.

[0064] See Figure 4 , Figure 4 exist Figure 1Based on the above, a power input end is shown. The louvered wind deflector unit also includes a power input end, which includes an operating lever 16 for manual operation by the user. Since the side of the linkage mechanism connected to the power input end is not a rack but a linkage rod 25, the linkage mechanism is a linkage rod relative to the power input end. The linkage rod 25 is provided with a connecting groove 18. The power input end also includes a push-pull strip 17 inserted into the connecting groove 18. The push-pull strip 17 can push and pull the linkage rod 25. The linkage rod 25 and the push-pull strip 17 are rotatably connected through the connecting groove 18. The push-pull strip 17 is fixedly connected to the operating lever 16.

[0065] See Figure 5 , Figure 5 It shows another kind of difference from Figure 4 The power input end of the linkage mechanism is connected to a rack 19 on the side facing the power input end. The power input end includes a power gear 20 that drives the rack 19 to move.

[0066] See Figure 6 , Figure 6 yes Figure 5 The diagram shows a comparison of the structure before and after assembly. The left side of the diagram shows the structure before assembly, and the right side shows the structure after assembly. The diagram shows a protrusion 28 located at the end of the operating lever and protruding outwards as a whole relative to the end of the operating lever. The support arm has a blocking surface 26 that blocks the protrusion 28, and the linkage mechanism has a blocking surface 27 that blocks the protrusion 28. During assembly, part of the operating lever is first passed through the space enclosed by the blocking surface 26 and blocked by the protrusion 28. Then the linkage mechanism is installed. The blocking surfaces 26 and 27 restrict the movement space of the protrusion 28 to prevent the operating lever from detaching from the linkage mechanism. Example

[0067] See Figure 7 , Figure 7 The diagram shows the structure of one end of another louvered windbreak unit, which is partly the same as that in Embodiment 1, for example, including a support arm and windbreak blades 29. A gear 32 is provided on the rotating shaft of the windbreak blades 29. The main difference is that the linkage mechanism is a linkage gear 30, which is located between two adjacent rotating shafts. One end of the operating lever is provided with a gear 31 that meshes with both the gear 32 and the linkage gear 30. Example

[0068] See Figure 8 , Figure 8 The structure of one end of another louvered windbreak unit is shown. The louvered windbreak unit is mostly the same as that in Embodiment 1, except that the operating lever 33 is directly connected to the linkage mechanism. Example

[0069] See Figure 9 , Figure 9 This shows the structure of one end of another louvered windbreak unit, which is related to... Figure 5 The structures are generally the same. For example, the linkage mechanism has a connecting groove 34 on the side facing the power output end. The power input end also includes an operating rod and a push-pull bar 35 that is inserted into and rotatably connected to the connecting groove 34. The main difference is that the power input end also includes a gear 37 and a rotating wheel 35. The push-pull bar 35 is fixed to the gear 37 through the rotating wheel 36. One end of the operating rod is provided with a thread that meshes with the gear 37. Rotating the operating rod can indirectly push and pull the linkage mechanism by pushing and pulling the push-pull bar 35. Example

[0070] See Figure 10 , Figure 10 This shows the structure of one end of another louvered windbreak unit, embodiment 1. Figure 1 The louvered windbreak unit is largely the same, with the main difference being that the linkage mechanism is a worm gear 39. The power input end includes a connecting shaft connected to the worm gear 39 and an operating lever. A gear 40 is mounted on the connecting shaft, and one end of the operating lever has a thread 41 that meshes with the gear 40. Rotating the operating lever drives the worm gear 39 to rotate. As an improvement in this embodiment, the gear 40 is a bevel gear, and one end of the operating lever is equipped with another bevel gear that matches the bevel gear. The operating lever controls the rotation of the worm gear 39 through the bevel gear set. Example

[0071] See Figure 11 , Figure 11 This shows the structure of one end of another louvered windbreak unit, which is related to... Figure 9 The basic structure is largely the same, with the main difference being that the rotating shaft connected to the windshield blade has a rotating bar 42, and the linkage mechanism has a connecting groove 43 on the side facing the windshield blade for the rotating bar 42 to be inserted. The rotating bar 42 and the linkage mechanism are rotatably connected through the connecting groove 43. The movement of the linkage mechanism can drive the windshield blade to rotate by the rotating bar 42 inserted into the connecting groove 43. Example

[0072] This embodiment demonstrates a structure in which two louvered windbreak units described in Embodiment 1 are connected in series. Figure 2 , Figure 2 The louvered windbreak unit described in Embodiment 1 is shown. Figure 1The structure shown is before the two ends of the support arm 5 are connected (only the support arm portion is shown). The support arm 5 has an external end, with a slot 11 on some of the external ends and a locking block 12 on others. When the locking block 12 is inserted into the slot 11, the two louvered windbreak units can be connected in series. Of course, those skilled in the art can also... Figure 1 The end of the support arm shown is as follows Figure 2 The modification of the end of the support part allows both ends of the support arm in the louvered windbreak unit of Embodiment 1 to be connected in series with other support arms. Example

[0073] This embodiment provides a louvered windbreak device, which includes two louvered windbreak units and a connector 14. Figure 1 The end of the support arm shown does not have an obvious external structure, but two support arms can be connected in series using connector 14, see Figure 3 The outer end of the support arm 5 has only an opening 13 for the linkage mechanism to pass through. The connector 14 is a connecting sleeve, with each end fitting over the outer end of the support arm 5, thus connecting the two support arms in series. A channel 15 is provided inside the connector 14 for the linkage mechanism to pass through, allowing the linkage mechanism to enter the other support arm 5 sequentially through the opening 13 and the channel 15. As an improvement to this embodiment, the opening 13 is provided with an isolation wall. In fact, the isolation wall can be an integral structure with the opening 13, thereby preventing the linkage mechanism from entering the support arm connected to the outer end. As another improvement to this embodiment, an isolation plate that opens or closes the opening can be added. When the isolation plate opens the opening, the linkage mechanism passes through the opening to enter the support arm connected to the outer end. When the isolation plate closes the opening, the isolation plate isolates the linkage mechanism to prevent it from entering the support arm connected to the outer end. Similarly, as an improvement to this embodiment, the connector is provided with a switch to open or close the channel. When the switch opens the channel, the linkage mechanism passing through the connector can pass through the channel to enter the support arm connected to the connector. When the switch closes the channel, the linkage mechanism passing through the connector cannot pass through the channel, thus preventing the linkage mechanism from entering the support arm connected to the external end. As an improvement to this embodiment, the connector is provided with a closure member that closes the channel to prevent the linkage mechanism from entering the support arm adjacent to the support arm through the connector. Example

[0074] See Figure 12 This embodiment provides a special louvered windbreak device, which uses two... Figure 7The louvered windbreak unit and the connector 46 fitted onto the outer ends of the support arms of the two louvered windbreak units. The outer ends of the support arms of the louvered windbreak units have openings 45, and at least part of the linkage gear adjacent to the openings 45 enters the connector 46 to mesh with the linkage gear passing through the channel of the connector 46. The connector has connection slots for connecting to the outer ends of the support arms, including a near connection slot 49 and a far connection slot 48.

[0075] When the outer end of the support arm is connected to the connector 46 and is in the near connection position (the locking block 47 of the support arm is locked in the near connection position 49), the linkage gears 44 of the two outer ends of the support arm connected by the connector 46, which are adjacent to the opening 45, mesh with each other, so that all the wind-blocking blades of the louvered wind-blocking device can rotate synchronously. When the outer end of the support arm is connected to the connector 46 and is in the far connection position (the locking block 47 of the support arm is locked in the far connection position 48), the linkage gears of the two outer ends of the support arm connected by the connector 46, which are adjacent to the opening 45, separate from each other, so that all the wind-blocking blades of the louvered wind-blocking device cannot rotate synchronously, but the wind-blocking blades on the two support arms rotate independently and synchronously. Example

[0076] This embodiment shows the support arm separately, see [link]. Figure 13 The figure shows that there is a mounting position 50 on one side of the support arm, which can fix the support arm in a position facing the air conditioner vent. Example

[0077] This embodiment is an improvement on embodiment 9. The main difference is that a transition gear 53 is provided in the connector 52. When the outer end of the support arm is connected to the connector 52 and is in the near connection position 55, the linkage gears 51 and 54 of the two outer ends of the support arm connected by the connector 52, which are adjacent to the opening, are engaged with the transition gear 53. Thus, all the wind-blocking blades of the louvered wind-blocking device can rotate synchronously in the same direction. When the outer end of the support arm is connected to the connector 52 and is in the far connection position 56, at least one of the linkage gears 51 and 54 of the two outer ends of the support arm connected by the connector 52, which are adjacent to the opening, is separated from the transition gear 53. Thus, all the wind-blocking blades of the louvered wind-blocking device cannot rotate synchronously. Instead, the wind-blocking blades on the two support arms rotate independently and synchronously.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A louvered wind deflector unit for blocking airflow from an air conditioning vent, characterized in that... The louvered wind deflector unit includes a support arm, wind deflector blades rotatably connected to the support arm, a linkage mechanism, and a power input end that provides rotational power to the wind deflector blades through the linkage mechanism, causing the wind deflector blades to rotate relative to the support arm. The length direction of the support arm is the same as the length direction of the air conditioner outlet.

2. A louvered wind deflector unit according to claim 1, wherein The louvered windbreak unit has an external end at at least one end of the support arm that connects to the other support arm.

3. A louvered windbreak unit according to claim 2, characterized in that... The external end includes an opening through which the linkage mechanism passes to access the support arm connected to the external end.

4. A louvered wind deflector unit according to claim 2, wherein The external end includes an isolation wall that isolates the linkage mechanism to prevent the linkage mechanism from entering the support arm connected to the external end.

5. A louvered wind deflector unit according to claim 3, wherein The external end also includes an isolation plate that opens or closes an opening. When the isolation plate opens, the linkage mechanism passes through the opening to enter the support arm connected to the external end. When the isolation plate closes the opening, the isolation plate isolates the linkage mechanism to prevent the linkage mechanism from entering the support arm connected to the external end.

6. A louvered wind deflector unit according to claim 1 or 2, wherein A rotating joint is provided between the support arm and the wind deflector blade. The rotating joint includes a rotating bearing, a rotating shaft that rotates on the rotating bearing, and a slide for the rotating shaft to slide into or out of the rotating bearing hole.

7. A louvered wind deflector unit as claimed in claim 2, wherein The external end is provided with a slot and / or a block, and the slot and the block are at least partially matched.

8. A louvered wind deflector unit according to claim 1 or 2, wherein The support arm has an internal space for accommodating the linkage mechanism.

9. A louvered wind deflector unit according to claim 1 or 2, wherein A limiting block and a blocking wall are provided between the support arm and the linkage mechanism. When the linkage mechanism drives the windshield blade to rotate, the limiting block moves toward the blocking wall and is eventually blocked by the blocking wall and stops moving.

10. A louvered wind deflector unit according to claim 9, wherein The limiting block is located at the end of the linkage mechanism, and the blocking wall is set on the side of the support arm facing the end of the linkage mechanism.

11. A louvered wind deflector unit according to claim 1 or 2, wherein Both the upper and lower parts of the wind deflector blade are provided with abutting surfaces. When the abutting surface of the lower part of the wind deflector blade rotates to the upper part of the adjacent wind deflector blade and abuts against the abutting surface of the upper part of the adjacent wind deflector blade, it prevents the wind deflector blade from rotating relative to the support arm.

12. A louvered wind deflector unit according to claim 1 or 2, wherein The power input includes an operating lever that extends toward the user of the louvered windbreak unit.

13. A louvered wind deflector unit as claimed in claim 1 or 2, wherein The power input end is provided with a protrusion located between the linkage mechanism and the support arm, and both the linkage mechanism and the support arm are provided with blocking surfaces to block the protrusion.

14. A louvered wind deflector unit as claimed in claim 8, wherein The support arm is also equipped with a stop to prevent the linkage mechanism from moving within the accommodating space.

15. A louvered wind deflector unit as claimed in claim 12, wherein The operating lever is located at one end of the louvered windbreak unit or outside the rotation space of the windbreak blades.

16. A louvered wind deflector unit as claimed in claim 14, wherein The block is a cover plate that covers the accommodating space.

17. A louvered wind deflector unit as claimed in claim 1 or 2, wherein The support arm and the windshield blade are connected by a rotating joint. The rotating joint includes a rotating bearing mounted on the support arm and a rotating shaft rotating on the rotating bearing. The rotating shaft is connected to the windshield blade. The linkage mechanism has a rack on the side facing the rotating shaft, and the rotating shaft has a gear that matches the rack; or, the linkage mechanism has a worm gear on the side facing the rotating shaft, and the rotating shaft has a worm wheel that matches the worm; or, the linkage mechanism has a linkage rod on the side facing the rotating shaft, and the rotating shaft has a rotating bar that connects to the linkage rod, and the rotating bar is rotatably connected to the linkage rod; or, the linkage mechanism includes a linkage gear located between two adjacent rotating shafts, and the rotating shaft has a gear that matches the linkage gear.

18. A louvered wind deflector unit as claimed in claim 17, wherein The linkage mechanism is a rack or a linkage gear on the side facing the power input end, and the power input end is provided with a power gear or a power worm gear that matches the rack; or, the linkage mechanism is a worm gear on the side facing the power input end, and the power input end is provided with a connecting shaft connected to the worm gear; or, the linkage mechanism is a linkage rod on the side facing the power input end, and the power input end is provided with a push-pull bar connected to the linkage rod; the power input end also includes an operating rod extending towards the user of the louvered wind deflector unit, and the operating rod is directly or indirectly connected to one of the power gear, the power worm gear, the connecting shaft, and the push-pull bar.

19. A louvered wind deflector unit as claimed in claim 18, wherein When the linkage mechanism has a rack on the side facing the power input end, one end of the operating lever is directly connected to the power gear, or one end of the operating lever has a thread that matches the power gear, or one end of the operating lever is directly or indirectly connected to one end of the power worm gear; when the linkage mechanism has a worm gear on the side facing the power input end, the operating lever is directly or indirectly connected to the connecting shaft; when the linkage mechanism has a linkage rod on the side facing the power input end, the push-pull bar is fixedly or rotatably connected to the linkage rod, the operating lever is connected to the push-pull bar, or the push-pull bar is rotatably connected to the operating lever, or the power input end also includes a first transmission gear located between the operating lever and the push-pull bar, the first transmission gear is connected to the push-pull bar, and one end of the operating lever has a thread that matches the first transmission gear.

20. A louvered wind deflector unit as claimed in claim 19, wherein When one end of the operating lever is indirectly connected to the power worm gear, the power input end further includes a first bevel gear and a second bevel gear disposed at one end of the operating lever, the first bevel gear and the second bevel gear being engaged and connected; or, the power input end further includes a second transmission gear disposed at one end of the power worm gear, and one end of the operating lever is provided with a thread matching the second transmission gear. When the operating lever is indirectly connected to the connecting shaft, the power input end further includes a third bevel gear disposed at one end of the operating lever and a fourth bevel gear disposed at one end of the connecting shaft, the third bevel gear and the fourth bevel gear being engaged and connected; or, the power input end further includes a third transmission gear disposed at one end of the connecting shaft, and one end of the operating lever is provided with a thread matching the third transmission gear.

21. A louvered wind deflector unit as claimed in claim 1 or 2, wherein The support arm is provided with an external connection position for fixing the support arm to the air outlet of the air conditioner. The external connection position includes one of a slide rail, a slider, or a mounting position.

22. A louvered wind deflector characterized in that The louvered windbreak device includes at least two louvered windbreak units as described in claim 2 and a connector connecting two adjacent louvered windbreak units. The end of the connector is either a connecting sleeve that at least partially covers the external end or a plug that at least partially inserts into the external end.

23. A wind deflector according to claim 22, wherein The connector is provided with a channel through which the linkage mechanism passes to enter the support arm adjacent to the support arm from the support arm.

24. A wind deflector according to claim 23, wherein The connector is also provided with a switch to open or close the channel. When the switch opens the channel, the linkage mechanism can pass through the channel to enter the support arm connected to the connector. When the switch closes the channel, the linkage mechanism cannot pass through the channel to prevent the linkage mechanism from entering the support arm connected to the external end.

25. A wind deflector according to claim 23, wherein The connector is provided with a closure that closes the channel to prevent the linkage mechanism from entering the support arm adjacent to the support arm through the connector.

26. A wind deflector according to claim 22, wherein The support arm and the windshield blade are connected by a rotating joint. The rotating joint includes a rotating bearing mounted on the support arm and a rotating shaft rotating on the rotating bearing. The rotating shaft is connected to the windshield blade. The linkage mechanism includes a linkage gear located between two adjacent rotating shafts. The rotating shaft has a gear that matches the linkage gear. The outer end of the support arm includes an opening. The connector has a channel for at least some teeth of the linkage gear adjacent to the opening to enter and a connecting slot for connecting to the outer end of the support arm. The connecting slot includes a near-connecting slot and a far-connecting slot. When the outer end of the support arm is connected to the connector and is in the near-connecting slot, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector mesh with each other. When the outer end of the support arm is connected to the connector and is in the far-connecting slot, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector separate from each other.

27. A wind deflector according to claim 26, wherein The connector also includes a transition gear that meshes with the linkage gear. When the outer end of the support arm is connected to the connector and is in the near connection position, the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector mesh with the transition gear. When the outer end of the support arm is connected to the connector and is in the far connection position, at least one of the linkage gears adjacent to the opening of the two outer ends of the support arm connected by the connector is separated from the transition gear.

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