Vehicle-mounted unpowered air supply nozzle

Abstract

The vehicle-mounted unpowered air supply nozzle comprises a fixed rack and at least one set of peripheral ventilation assemblies, the fixed rack is arranged in an airflow pipeline so as to divide the airflow pipeline into an air inlet end and an air outlet end, and the peripheral ventilation assemblies are arranged on the fixed rack; the central disturbance pipe is arranged in the air inlet end; the movable push plate is arranged in the air inlet end of the airflow pipeline and can reciprocate in the air inlet end under the action of airflow; an air outlet of the central disturbance pipe is formed in the center of the fixed rack and communicates with the air outlet end, and at the initial position, a part of the air inlet is located on the side, away from the fixed rack, of the movable push plate so that airflow can flow out through the air outlet; in the middle position, one part of the air inlet and one part of the air inlet are located on the side, away from the fixed rack, of the movable push plate so that airflow can flow out through the air outlet and the air outlet. The high-speed airflow columns and the low-speed airflow columns which are alternately generated can form a vortex ring, an additional power mechanism is not needed, the weight of the device is reduced, and use convenience is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning accessories, and in particular to a vehicle-mounted non-powered air supply nozzle. Background Art

[0002] Existing car air conditioners use ordinary airflow for transmission. Since ordinary airflow dissipates energy quickly and has a short transmission distance, it is easy for front-seat passengers to feel overheated or overcooled, while rear-seat passengers feel that the temperature adjustment is not obvious. The vortex ring generating device can transform the ordinary airflow generated by the car air conditioner into a vortex ring-shaped airflow for transmission, thereby achieving the technical requirements of low wind speed and long-distance air delivery. At present, the existing vortex ring generating devices all have independent power sources inside, that is, it is necessary to add additional power sources such as motor drive, hydraulic drive, electromagnetic drive, etc. that need to be connected to electricity inside the device, which makes the vehicle air conditioner nozzle too heavy. When installed at the vehicle air conditioner outlet, it needs to withstand greater gravity, and it is necessary to find an additional socket to connect the device to electricity. It is inconvenient to use, and there is a worry that after a long time, the connection parts will age and the nozzle device will fall from the vehicle air conditioner nozzle due to gravity, causing unnecessary accidents. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle-mounted unpowered air supply nozzle to solve the problem that the vortex ring air supply ducts in the prior art are all designed with a power source, resulting in excessive weight and inconvenience in use.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions: Vehicle-mounted non-powered air supply nozzle, including: A fixed frame is arranged in the air flow duct to separate the air flow duct into an air inlet end and an air outlet end; A central disturbance tube is arranged in the air inlet end, the air outlet of the central disturbance tube is arranged at the center of the fixed frame, and the air outlet is connected to the air outlet end, and an air inlet is arranged on the side wall of the central disturbance tube along the length direction of the air flow duct; At least one group of peripheral ventilation components, the peripheral ventilation components comprising a plurality of peripheral ventilation pipes arranged in the air inlet end, the air outlets of the peripheral ventilation pipes being arranged on a fixed frame, and the air outlets being connected to the air outlet end, the air outlets of the peripheral ventilation pipes in the same group being located on a circular ring with the air inlet as the center, and the side walls of the peripheral ventilation pipes being provided with air inlets along the length direction of the air flow duct; A movable push plate is arranged in the air inlet end of the air flow duct and can be reciprocated in the air inlet end by the action of the air flow, and the movable push plate has an initial position and an intermediate position; in the initial position, a part of the air inlet is located on the side of the movable push plate away from the fixed frame so that the air flow flows out through the air outlet; in the intermediate position, a part of the air inlet and a part of the air inlet are located on the side of the movable push plate away from the fixed frame so that the air flow flows out through the air outlet and the air outlet.

[0005] Furthermore, a plurality of ventilation holes are provided on the movable push plate, and a thrust valve capable of opening and closing the ventilation holes is provided on the movable push plate; When the push plate is moved to the initial position and the middle position, the thrust valve closes the ventilation hole; The movable push plate also has an end position, and when the movable push plate moves from the middle position to the end position, the opening of the thrust valve gradually increases; When the movable push plate is at the end position, the entire air inlet is located on a side of the movable push plate away from the fixed frame, and a portion of the air inlet is located on a side of the movable push plate close to the fixed frame.

[0006] Furthermore, an elastic member connected to the movable push plate is provided in the air flow duct; When the movable push plate is at the initial position, the middle position and the end position, the elastic member is in a compressed or stretched state, and the deformation amount of the elastic member gradually increases from the initial position to the middle position and then to the end position.

[0007] Furthermore, the elastic member is a spring, one end of the spring is connected to the fixed frame, and the other end of the spring is connected to the movable push plate.

[0008] Furthermore, a spring mounting rod is provided on the central disturbance tube, the spring mounting rod and the air outlet are in the same straight line, and the spring mounting rod is located on the side facing away from the air outlet; A spring mounting groove is provided on one side of the center of the movable push plate close to the fixed frame; One end of the spring is connected to the spring installation rod, and the other end is arranged in the spring installation groove.

[0009] Furthermore, a first connecting rod is hingedly connected to a side surface of the thrust valve close to the fixed frame through a connecting rod fixed rotating shaft, and a second connecting rod is hingedly connected to a side surface of the movable push plate close to the fixed frame through a second connecting rod mounting shaft, and the first connecting rod and the second connecting rod are hingedly connected; A push rod group is provided on one side of the fixed frame close to the movable push plate. When the movable push plate is in the initial position, the push rod group is away from the second connecting rod and / or the first connecting rod, and the second connecting rod and the first connecting rod are in the same straight line and are in a dead point position; When the push plate is in the middle position, the push rod assembly contacts the second connecting rod and / or the first connecting rod, and the second connecting rod and the first connecting rod are in the same straight line and are in the dead point position; When the push plate is at the end position, the push rod assembly contacts the second connecting rod and / or the first connecting rod, and the second connecting rod and the first connecting rod are tilted; Two thrust valve rotating shafts are arranged on the periphery of the thrust valve, the connecting line of the two thrust valve rotating shafts does not pass through the central axis of the thrust valve, and the connecting line of the two thrust valve rotating shafts is located on the side away from the fixed rotating shaft of the connecting rod; the thrust valve rotating shaft and the thrust valve opening and closing hole on the side wall of the ventilation hole are plug-connected to open and close the ventilation hole by the rotating thrust valve.

[0010] Further, the mandrel group includes a No. 1 mandrel arranged on the fixed frame and a No. 2 mandrel arranged on the central disturbance tube; The first push rod and the second push rod are located within the projection of the connecting line of the second connecting rod and the first connecting rod on the fixed frame, and the first push rod and the second push rod are close to the hinge point of the second connecting rod and the first connecting rod.

[0011] Furthermore, a reset push rod is provided on one side of the movable push plate away from the fixed frame; When the movable push plate moves from the middle position to the initial position, the thrust valve gradually contacts the reset push rod from the end away from the reset push rod, and rotates under the action of the reset push rod to close the ventilation hole; wherein, the contact point between the reset push rod and the thrust valve is located on the side of the line connecting the two thrust valve shafts away from the fixed shaft of the connecting rod.

[0012] Furthermore, a convex plate is provided on the first connecting rod, and the convex plate is located at one end close to the second connecting rod and at one side close to the movable push plate; When the second connecting rod and the first connecting rod are in the same straight line, the convex plate is connected to a side of the second connecting rod close to the movable push plate.

[0013] Furthermore, a central disturbance pipe moving hole matching the outer diameter of the central disturbance pipe is provided on the moving push plate, and the moving push plate is slidably connected to the central disturbance pipe through the central disturbance pipe moving hole; The movable push plate is located on one side close to the fixed frame and is connected with an annular baffle plate for shielding the air inlet between the movable push plate and the fixed frame.

[0014] The beneficial effects of the present invention are: When the movable push plate of the vehicle-mounted unpowered air supply nozzle of the present invention is in the initial position, a high-speed air flow column can be generated through the air outlet, and when the movable push plate moves to the middle position, a low-speed air flow column is generated through the air outlet and the air outlet. The present invention also provides that the movable push plate reciprocates in the air inlet end through the action of the airflow to form a cycle, and the air outlets of multiple peripheral ventilation pipes in the same group are located on a circular ring with the air inlet as the center. The alternatingly generated high-speed air flow columns and low-speed air flow columns can form a vortex ring. By adjusting and matching the material, mass, volume of the movable push plate, the material, wire diameter, outer diameter, inner diameter, total number of turns and pitch of the spring and other related parameters, the movement of the present device can achieve the goal of not requiring an additional power mechanism, reducing the weight of the device and ensuring ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the vehicle-mounted unpowered air supply nozzle installed on the vehicle; Figure 2 It is a half-section schematic diagram of the overall structure of the present invention; Figure 3 is a schematic diagram of the thrust valve being closed in the present invention; Figure 4 is a schematic diagram of the thrust valve opening in the present invention; Figure 5 It is a structural schematic diagram of the thrust valve in the present invention; Figure 6 is a schematic structural diagram of the first connecting rod in the present invention; Figure 7 is a schematic structural diagram of the second connecting rod in the present invention; Figure 8 It is a structural schematic diagram of a fixed frame in the present invention; Fig. 9 It is a structural schematic diagram of the movable push plate in the present invention; Fig.10 It is a schematic diagram of the structure of the peripheral ventilation pipe in the present invention; Fig.11 It is a schematic diagram of the structure of the central disturbance tube in the present invention.

[0016] Among them: 1. airflow nozzle; 2. airflow duct; 3. fixed frame; 4. movable push plate; 5. thrust valve; 6. central disturbance pipe; 7. peripheral ventilation pipe; 8. spring; 9. reset push rod; 10. second connecting rod; 11. first connecting rod, 12. vehicle; 301, peripheral ventilation pipe installation hole; 302, central disturbance pipe installation hole; 303, No. 1 top rod; 401, peripheral ventilation duct moving hole; 402, central disturbance duct moving hole; 403, spring mounting groove; 404, second connecting rod mounting shaft; 405, thrust valve opening and closing hole; 406, ventilation hole; 407, annular baffle; 501, thrust valve shaft; 502, thrust valve face; 503, connecting rod fixed shaft; 601, air outlet; 602, air inlet; 603, spring mounting rod; 604, No. 2 top rod; 701, air outlet; 702, air inlet; 703, top pipe wall; 1001, second connecting rod through hole; 1002, second connecting rod rotating shaft; 1101, convex plate; 1102, first connecting rod hole one; 1103, contraction surface; 1104, first connecting rod hole two. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] Vehicle-mounted non-powered air supply nozzles, such as Figure 1 As shown, it is arranged in a vehicle 12, including a fixed frame 3 and at least one group of peripheral ventilation components, the fixed frame 3 is arranged in the airflow duct 2 to separate the airflow duct 2 into an air inlet end and an air outlet end, and also includes a central disturbance pipe 6 arranged in the air inlet end and a movable push plate 4 arranged in the air inlet end of the airflow duct 2 and capable of reciprocating in the air inlet end by the action of the airflow; the air outlet 601 of the central disturbance pipe 6 is arranged at the center of the fixed frame 3, and the air outlet 601 is connected to the air outlet end, and the side wall of the central disturbance pipe 6 is provided with an air inlet 602 along the length direction of the airflow duct 2; the peripheral ventilation component includes a plurality of peripheral ventilation pipes 7 arranged in the air inlet end, and the outlet of the peripheral ventilation pipe 7 The air inlet 701 is arranged on the fixed frame 3, and the air outlet 701 is connected to the air outlet end, the air outlets 701 of the same group of multiple peripheral ventilation tubes 7 are located on a circular ring with the air inlet 602 as the center, and the side walls of the peripheral ventilation tubes 7 are provided with air inlets 702 along the length direction of the airflow duct 2; the movable push plate 4 has an initial position and an intermediate position; in the initial position, a part of the air inlet 602 is located on the side of the movable push plate 4 away from the fixed frame 3, so that the airflow flows out through the air outlet 601; in the intermediate position, a part of the air inlet 602 and a part of the air inlet 702 are located on the side of the movable push plate 4 away from the fixed frame 3, so that the airflow flows out through the air outlet 601 and the air outlet 701.

[0019] When the present invention is working, the movable push plate 4 is in the initial position. When airflow enters from the outside, the airflow first enters the air inlet end of the airflow duct 2. At this time, since a part of the air inlet 602 is located on the side of the movable push plate 4 away from the fixed frame 3, the airflow enters through the air inlet 602 of the central disturbance tube 6 and flows from the air outlet 601 to the air outlet end.

[0020] When the airflow enters the air inlet, the airflow starts to push the movable push plate 4 to move to the middle position in the direction of the fixed frame 3. In this process, the air inlet 702 of the peripheral ventilation pipe 7 is also exposed (a part of the air inlet 602 and a part of the air inlet 702 are located on the side of the movable push plate 4 away from the fixed frame 3). At this time, the airflow not only flows from the air outlet 601 to the air outlet, but also flows from the air outlet 701 to the air outlet.

[0021] When the movable push plate 4 of the present invention is in the initial position, a high-speed airflow column can be generated through the air outlet 601. When the movable push plate 4 moves to the middle position, a low-speed airflow column is generated through the air outlet 601 and the air outlet 701. The present invention also provides that the movable push plate 4 reciprocates in the air inlet end through the action of the airflow to form a cycle, and the air outlets 701 of multiple peripheral ventilation pipes 7 in the same group are located on a circular ring with the air inlet 602 as the center. The alternating high-speed airflow columns and low-speed airflow columns can form a vortex ring. The present invention does not require an additional power mechanism, reduces the weight of the device, and ensures ease of use.

[0022] In the present invention, if Figure 2 and Fig. 9 As shown, the movable push plate 4 is provided with a peripheral ventilation duct movable hole 401 adapted to the outer diameter of the peripheral ventilation duct 7 and a central disturbance duct movable hole 402 adapted to the outer diameter of the central disturbance tube 6; the movable push plate 4 is slidably connected to the peripheral ventilation duct 7 through the peripheral ventilation duct movable hole 401, and the movable push plate 4 is slidably connected to the central disturbance tube 6 through the central disturbance duct movable hole 402.

[0023] The end of the air outlet of the present invention is connected with an air flow nozzle 1.

[0024] Furthermore, if Fig. 9 As shown, an annular baffle 407 for shielding the air inlet 602 between the moving push plate 4 and the fixed frame 3 is connected to the side of the moving push plate 4 located near the fixed frame 3. Since the air inlet 602 is designed along the length direction of the airflow duct 2, in order to ensure that the airflow enters from the air inlet 602 on the side of the moving push plate 4 away from the fixed frame 3 and then flows out from the air inlet 602 between the moving push plate 4 and the fixed frame 3, the present embodiment is specially provided with an annular baffle 407, which is fixed on the moving push plate 4 and can move with the moving push plate 4 to shield the air inlet 602 between the moving push plate 4 and the fixed frame 3.

[0025] like Fig.10 As shown, the peripheral ventilation pipe 7 is a straight pipe, and the top pipe wall 703 at the top has no air inlet 702. Fig.11As shown, the central disturbance tube 6 has an air outlet 601 and two air inlets, each of which is an air inlet duct with an air inlet 602. The two air inlet ducts can be integrally formed with the air outlet 601 or can be welded. In other embodiments, more air inlets can be provided.

[0026] like Figure 8-Figure 11 As shown, a central disturbance tube mounting hole 302 is provided in the middle of the fixed frame 3 for mounting the air outlet 601 of the central disturbance tube 6 ; the fixed frame 3 is also provided with a plurality of peripheral ventilation tube mounting holes 301 for mounting the air outlet 701 of the peripheral ventilation tube 7 .

[0027] In a further embodiment of the present invention, a plurality of ventilation holes 406 are provided on the movable push plate 4, and a thrust valve 5 capable of opening and closing the ventilation holes 406 is provided on the movable push plate 4, and the thrust valve 5 closes the ventilation holes 406 at the initial position and the middle position; the movable push plate 4 also has an end position, and the opening of the thrust valve 5 gradually increases from the middle position to the end position of the movable push plate 4, and when the movable push plate 4 is at the end position, the entire part of the air inlet 602 is located on the side of the movable push plate 4 away from the fixed frame 3, and a part of the air inlet 702 is located on the side of the movable push plate 4 close to the fixed frame 3.

[0028] The present invention can more finely adjust the air flow through the movable push plate 4 by controlling the opening and closing of the vent hole 406 by the thrust valve 5. In the initial position and the middle position, the thrust valve 5 closes the vent hole 406 to ensure the leading role of the central disturbance tube 6 and the peripheral ventilation components, and a stable vortex ring can be formed at this time. In the process of moving to the end position, the thrust valve 5 gradually opens, allowing more airflow to flow through the vent hole 406 of the movable push plate 4.

[0029] When the movable push plate 4 is at the end position, a part of the air inlet 702 is located on the side of the movable push plate 4 close to the fixed frame 3. This design allows the airflow entering the movable push plate 4 and the fixed frame 3 through the thrust valve 5 to enter from the air inlet 702 and flow out from the air outlet 701, thereby preventing the pressure between the movable push plate 4 and the fixed frame 3 from being too high, which may cause damage to the device.

[0030] In one embodiment of the present invention, an elastic member connected to the movable push plate 4 is provided in the airflow duct 2. When the movable push plate 4 is in the initial position, the middle position and the end position, the elastic member is in a compressed or stretched state, and the deformation of the elastic member gradually increases from the initial position to the middle position and then to the end position.

[0031] The present invention introduces an elastic member connected to the movable push plate 4. This design further enhances the dynamic performance and self-adjustment capability of the vehicle-mounted unpowered air supply nozzle. The specific analysis is as follows: when the airflow pushes the movable push plate 4 to move from the initial position to the middle position or even the end position, the elastic member is gradually compressed or stretched, storing mechanical potential energy. As the displacement of the movable push plate 4 increases, the deformation of the elastic member gradually increases, and the stored energy also increases accordingly.

[0032] When the movable push plate 4 is at the initial position and the middle position, the thrust valve 5 closes the ventilation hole 406, and the potential energy of the elastic member is less than the force of the airflow on the movable push plate 4. The movable push plate 4 continues to move to the end position, and the thrust valve 5 gradually opens, and the airflow flows through the ventilation hole 406 of the movable push plate 4. When it moves to the end position, the force of the airflow on the movable push plate 4 is less than the potential energy of the elastic member, and the movable push plate 4 automatically returns to the initial position, realizing the automatic reset of the pipeline system. This process not only reduces the need for an additional reset mechanism, but also forms a feedback mechanism based on the change of airflow intensity, thereby enhancing the adaptability of the system.

[0033] In one embodiment, the elastic member is a spring 8, one end of the spring 8 is connected to the fixed frame 3, and the other end is connected to the movable push plate 4. The spring 8 in this embodiment will be compressed. In other embodiments, the spring 8 can also be arranged on the side of the movable push plate 4 away from the fixed frame 3. When working, the spring 8 in this embodiment is stretched.

[0034] In a further embodiment, a spring mounting rod 603 is further provided on the central disturbance tube 6, the spring mounting rod 603 and the air outlet 601 are in the same straight line, and the spring mounting rod 603 is located on the side facing away from the air outlet 601; a spring mounting groove 403 is provided on the side of the center of the movable push plate 4 close to the fixed frame 3; one end of the spring 8 is connected to the spring mounting rod 603, and the other end is arranged in the spring mounting groove 403.

[0035] One end of the spring 8 is connected to the spring mounting rod 603 of the fixed frame 3, and the other end is embedded in the spring mounting groove 403 at the center of the moving push plate 4. Such a layout ensures accurate force transmission, makes the moving push plate 4 move more smoothly, and the compression of the spring 8 is more uniform, thereby improving the stability and reliability of the system.

[0036] The spring mounting rod 603 and the air outlet 601 are in the same straight line, and the spring mounting rod 603 is located on the side facing away from the air outlet 601. This design cleverly utilizes the space inside the pipe, avoids the interference of the spring 8 on the airflow, and at the same time ensures the effective operation of the spring 8, thereby realizing efficient use of space.

[0037] The natural state of the spring 8 corresponds to the initial position of the movable push plate 4. As the airflow increases, the movable push plate 4 is pushed, and the spring 8 is compressed to store mechanical energy. Once the airflow weakens, the spring 8 releases energy to help the movable push plate 4 quickly reset, forming an efficient dynamic response and feedback mechanism.

[0038] like Figure 3 and Figure 4 As shown, an embodiment in which four thrust valves 5 are arranged on the movable push plate 4 is shown. In other embodiments, the number of thrust valves 5 may also be increased or decreased. The present invention will be described hereinafter with four thrust valves 5 on the movable push plate 4.

[0039] In one embodiment, Figure 5 As shown, two thrust valve rotating shafts 501 are provided on the outer periphery of the thrust valve 5, and the thrust valve rotating shafts 501 are plug-connected with the thrust valve opening and closing holes 405 on the side walls of the ventilation holes 406 so as to open and close the ventilation holes 406 by rotating the thrust valve 5; a first connecting rod 11 is hingedly connected on one side surface of the thrust valve 5 close to the fixed frame 3 through a connecting rod fixing rotating shaft 503, and a second connecting rod 10 is hingedly connected on one side surface of the movable push plate 4 close to the fixed frame 3 through a second connecting rod mounting shaft 404, and the first connecting rod 11 and the second connecting rod 10 are hingedly connected.

[0040] A push rod group is provided on one side of the fixed frame 3 close to the movable push plate 4. When the movable push plate 4 is in the initial position, the push rod group is away from the second connecting rod 10 and / or the first connecting rod 11, and the second connecting rod 10 and the first connecting rod 11 are in the same straight line and are in the dead point position; when the movable push plate 4 is in the middle position, the push rod group is in contact with the second connecting rod 10 and / or the first connecting rod 11, and the second connecting rod 10 and the first connecting rod 11 are in the same straight line and are in the dead point position; when the movable push plate 4 is in the end position, the push rod group is in contact with the second connecting rod 10 and / or the first connecting rod 11, and the second connecting rod 10 and the first connecting rod 11 are tilted.

[0041] It is worth noting that the line connecting the two thrust valve shafts 501 does not pass through the central axis of the thrust valve 5, and the line connecting the two thrust valve shafts 501 is located on the side away from the connecting rod fixed shaft 503. This design can determine the rotation direction of the thrust valve 5 under force, and when the push rod assembly contacts the second connecting rod 10 and / or the first connecting rod 11, the thrust valve 5 has the connecting rod fixed shaft 503 moving toward the side close to the fixed frame 3.

[0042] During operation, when the movable push plate 4 is in the initial position, the push rod group is away from the second connecting rod 10 and the first connecting rod 11, and the second connecting rod 10 and the first connecting rod 11 are in the same straight line, that is, in the dead point position. At this time, the thrust valve 5 is kept closed by the action of the first connecting rod 11 and the second connecting rod 10, and the ventilation hole 406 is closed. As the airflow increases, the movable push plate 4 begins to move toward the fixed frame 3. When it reaches the middle position, the push rod group just starts to contact with the second connecting rod 10 and / or the first connecting rod 11, but the two still remain in the same straight line, and the thrust valve 5 is ready to open. When the movable push plate 4 continues to move from the middle position to the end position, the contact force between the push rod group and the second connecting rod 10 and / or the first connecting rod 11 increases, forcing the two connecting rods to form an inclined angle, thereby changing the rotation angle of the thrust valve 5 through the lever principle, significantly increasing its opening, and allowing a large amount of airflow to pass through the ventilation hole 406.

[0043] The present invention can realize the control of the opening of the thrust valve 5 through the cooperation of the connecting rod mechanism and the push rod group, ensuring the precise adjustment of the airflow. The mechanical linkage of the connecting rod and the push rod group avoids complex electronic control, improves the stability and reliability of the system, and reduces the maintenance cost. The connecting rod mechanism can efficiently convert linear motion into rotational motion, drive the opening and closing of the thrust valve 5, reduce energy loss, and improve energy conversion efficiency.

[0044] In a more specific embodiment, Figures 5 to 9 As shown, the push rod group includes a push rod 303 disposed on the fixed frame 3 and a push rod 604 disposed on the central disturbance tube 6. There are two push rods 303 and two push rods 604, each of which acts on a connecting rod mechanism, and the four push rods act on the connecting rod mechanisms of the four thrust valves 5.

[0045] The first push rod 303 and the second push rod 604 are located within the projection of the line connecting the second connecting rod 10 and the first connecting rod 11 on the fixed frame 3, and the first push rod 303 and the second push rod 604 are close to the hinge point of the second connecting rod 10 and the first connecting rod 11.

[0046] like Figure 5 , Figure 6 , Figure 7 and Fig. 9 As shown, a second connecting rod through hole 1001 is provided at one end of the second connecting rod 10, and the second connecting rod through hole 1001 is hinged to a second connecting rod mounting shaft 404 vertically fixed on the fixed frame 3, and a second connecting rod rotating shaft 1002 is provided at the other end of the second connecting rod 10. A first connecting rod hole 2 1104 is provided at one end of the first connecting rod 11 and hinged to the connecting rod fixed rotating shaft 503, and a contraction surface 1103 is provided at the other end of the first connecting rod 11, and a first connecting rod hole 1102 is provided on the contraction surface 1103, and the second connecting rod rotating shaft 1002 is hinged to the first connecting rod hole 1102.

[0047] In a further embodiment, a convex plate 1101 is further provided on the contraction surface 1103 of the first connecting rod 11, and the convex plate 1101 is located at one end close to the second connecting rod 10 and at a side close to the movable push plate 4. When the second connecting rod 10 and the first connecting rod 11 are in the same straight line, the convex plate 1101 is connected to a side of the second connecting rod 10 close to the movable push plate 4.

[0048] The convex plate 1101 provided in the present invention can provide support when the first connecting rod 11 and the second connecting rod 10 are reset and aligned, so as to ensure that the first connecting rod 11 and the second connecting rod 10 are in the same straight line when reset, prevent the first connecting rod 11 and the second connecting rod 10 from excessive movement when reset, and thereby ensure the stability of the thrust valve 5 in closing the ventilation hole 406.

[0049] In one embodiment, a reset push rod 9 is further provided on the side of the movable push plate 4 away from the fixed frame 3; when the movable push plate 4 moves from the middle position to the initial position, the thrust valve 5 gradually contacts the reset push rod 9 from the end away from the reset push rod 9, and rotates under the action of the reset push rod 9 to close the ventilation hole 406; wherein, the contact point between the reset push rod 9 and the thrust valve 5 is located on the side of the line connecting the two thrust valve shafts 501 away from the connecting rod fixed shaft 503.

[0050] Specifically, Figure 2 As shown, the reset push rod 9 is connected to the peripheral ventilation pipe 7. Since the drawings of this embodiment show four thrust valves 5, the reset push rod 9 is fixed to the ends of the four peripheral ventilation pipes 7 near the thrust valves 5. The reset push rod 9 has a protrusion that can contact the thrust valve 5 to guide the thrust valve 5 to reset. Specifically, as Figure 5 As shown, the line connecting the two thrust valve shafts 501 divides the thrust valve surface 502 into two parts A and B. The contact point between the protrusion and the thrust valve 5 is located in the A part of the thrust valve surface 502, and the connecting rod fixed shaft 503 is arranged in the B part of the thrust valve surface 502. This design ensures that the reset push rod 9 can effectively reset the thrust valve 5.

[0051] When the push plate 4 moves from the middle position to the initial position, the edge of the thrust valve 5 gradually approaches the reset push rod 9 and finally contacts it. When the thrust valve 5 contacts the reset push rod 9, the force applied by the reset push rod 9 causes the thrust valve 5 to rotate around its rotation axis, gradually closing the vent 406. When the push plate 4 moves to the initial position, the thrust valve 5 is completely closed under the continuous action of the reset push rod 9, ensuring the sealing of the vent 406.

[0052] Through the cooperation between the reset push rod 9 and the thrust valve 5, the opening and closing of the ventilation hole 406 is precisely controlled, ensuring the efficient operation of the system under different airflow conditions. The mechanical linkage mechanism between the reset push rod 9 and the thrust valve 5 reduces the dependence on electronic control components, improves the stability and reliability of the system, and reduces maintenance costs.

[0053] The working principle of the present invention is analyzed as a whole below: Figure 2 As shown, the fixed frame 3 is fixedly installed at the inner wall of the airflow duct 2, one end of the spring 8 is installed at the spring installation rod 603, and the other end is in contact with the spring installation groove 403. Under the action of the spring 8, when the movable push plate 4 contacts the reset push rod 9, it is in the initial position under the limiting action of the reset push rod 9, and the spring 8 is in a compressed state. At this time, the second connecting rod 10 and the first connecting rod 11 are on the same straight line, that is, at the dead point of force. When the connecting rod is not subjected to external force, no matter how large the thrust generated by the airflow on the thrust valve surface 502 of the thrust valve 5 is, the thrust valve 5 will not rotate along the thrust valve opening and closing hole 405 to open.

[0054] When the device is installed on the air outlet 601 of the air conditioner, the air conditioner is turned on, and the air flow flows from the tail of the air flow duct 2 to the air flow nozzle 1. After the air flow hits the surface of the movable push plate 4, it enters the central disturbance tube 6 from the air inlets 602 on both sides of the movable push plate 4. At this time, the thrust valve 5 is in a closed state. Since all air flows in from the air inlet 602 and flows out from the air outlet 601 of the central disturbance tube 6, the air flow generated at this time is a high-speed slender air flow column. At this time, the airflow thrust received by the moving push plate 4 is greater than the elastic force of the spring 8, so the moving push plate 4 moves toward the direction close to the airflow nozzle 1 and compresses the spring 8 at the same time. When the contact position between the moving push plate 4 and the peripheral ventilation pipe 7 changes from the top pipe wall 703 to the air inlet 702, that is, it moves to the middle position, the airflow will flow out from the six peripheral ventilation pipes 7 and the central disturbance pipe 6 together. Since the flow cross-section of the airflow increases at this time, the flow velocity of the airflow decreases under the same airflow flow state, and a low-speed airflow column filling the flow channel diameter is generated in the airflow pipe 2. At this time, the airflow thrust received by the moving push plate 4 is still greater than the elastic force of the spring 8.

[0055] Subsequently, during the movement of the movable push plate 4, the position of the first connecting rod hole 1102 contacts the No. 2 push rod 604 and the No. 1 push rod 303, so that the second connecting rod 10 and the first connecting rod 11 rotate and are no longer in the dead point position. Under the combined action of the No. 2 push rod 604 and the No. 1 push rod 303 on the connecting rod and the thrust of the airflow on the thrust valve surface 502, the thrust valve 5 rotates and opens along the thrust valve opening and closing hole 405, and the contact area between the movable push plate 4 and the airflow is reduced, and the thrust of the airflow is reduced. When the thrust valve 5 reaches the maximum opening (the valve surface opening angle is less than 90°), since the contact area of ​​the movable push plate 4 with the airflow is reduced, the thrust of the airflow is less than the elastic force of the spring 8. At this time, the movable push plate 4 is at the end of the forward movement. After deceleration, the spring 8 pushes the movable push plate 4 to move in the direction away from the airflow nozzle 1. When moving forward to the end position, since a portion of the air inlet 702 is located between the movable push plate 4 and the fixed frame 3 , the airflow can still flow into the air inlet 702 between the movable push plate 4 and the fixed frame 3 after passing through the ventilation holes 406 .

[0056] During the backward movement and reset process of the movable push plate 4, the thrust valve 5 is always in an open state due to the presence of airflow and inertia. Although the thrust valve 5 will shake to a certain extent during this process, the overall thrust acting on the movable push plate 4 is less than the elastic force of the spring 8. When the movable push plate 4 passes the middle position and moves from the middle position to the initial position, when leaving the air inlet 702, the peripheral ventilation pipe 7 is closed, and the airflow only flows out from the central disturbance pipe 6, generating a high-speed airflow column, disturbing the low-speed airflow in front, and then causing the airflow to generate a disturbing vortex ring at the position of the airflow nozzle 1. At this time, the thrust of the airflow on the movable push plate 4 is still less than the elastic force of the spring 8.

[0057] When the movable push plate 4 approaches the reset push rod 9 under the action of the elastic force and inertia of the spring 8, the thrust valve 5 is closed under the action of the reset push rod 9, and the second connecting rod 10 and the first connecting rod 11 are in the same straight line again and return to the initial position. This is a generation cycle, and during the entire cycle, the flow channel is always in a connected state, and the airflow maintains continuity and is not cut off.

[0058] In summary, the present invention has the following advantages: No additional power is required: the airflow enters the device and vertically impacts the movable push plate 4, thereby generating a certain thrust on the movable push plate 4. The thrust generated at this time is greater than the elastic force of the spring 8, so the movable push plate 4 can be driven to move to a position close to the air outlet 601. Then, by opening the thrust valve 5, the contact area between the movable push plate 4 and the airflow is reduced, and by changing the contact area between the disturbance plate and the airflow, the thrust generated by the airflow on the disturbance plate is reduced, thereby enabling the movable push plate 4 to achieve reciprocating motion, and in this process, a pulsed disturbance is generated on the airflow, generating a disturbance-type vortex ring.

[0059] Lightweight device: Since the vortex ring is generated by simply utilizing the driving force of the airflow entering the device, there is no need to introduce any external power sources such as motors, hydraulic drives, electromagnetic drives or manual drives. Therefore, all the materials required for the device can be selected from lightweight materials such as plastics, which makes the device more lightweight as a whole while being convenient to use.

Claims

1. The vehicle-mounted non-powered air supply nozzle is characterized by: include: A fixed frame (3), wherein the fixed frame (3) is arranged in the air flow duct (2) to separate the air flow duct (2) into an air inlet end and an air outlet end; A central disturbance tube (6) is arranged in the air inlet end, the air outlet (601) of the central disturbance tube (6) is arranged at the center of the fixed frame (3), and the air outlet (601) is connected to the air outlet end, and the side wall of the central disturbance tube (6) is provided with an air inlet (602) along the length direction of the airflow duct (2); At least one group of peripheral ventilation components, the peripheral ventilation components comprising a plurality of peripheral ventilation pipes (7) arranged in the air inlet end, the air outlets (701) of the peripheral ventilation pipes (7) being arranged on the fixed frame (3), and the air outlets (701) being connected to the air outlet end, the air outlets (701) of the peripheral ventilation pipes (7) in the same group being located on a circular ring with the air inlet (602) as the center, and the side walls of the peripheral ventilation pipes (7) being provided with air inlets (702) along the length direction of the air flow duct (2); A movable push plate (4) is arranged in the air inlet end of the air flow duct (2) and can be reciprocated in the air inlet end by the action of the air flow, the movable push plate (4) having an initial position and an intermediate position; in the initial position, a part of the air inlet (602) is located on a side of the movable push plate (4) away from the fixed frame (3) so that the air flow flows out through the air outlet (601); in the intermediate position, a part of the air inlet (602) and a part of the air inlet (702) are located on a side of the movable push plate (4) away from the fixed frame (3) so that the air flow flows out through the air outlet (601) and the air outlet (701).

2. The vehicle-mounted unpowered air supply nozzle according to claim 1, characterized in that: The movable push plate (4) is provided with a plurality of ventilation holes (406), and the movable push plate (4) is provided with a thrust valve (5) capable of opening and closing the ventilation holes (406); When the movable push plate (4) is in the initial position and the intermediate position, the thrust valve (5) closes the ventilation hole (406); The movable push plate (4) also has an end position, and when the movable push plate (4) moves from the middle position to the end position, the opening of the thrust valve (5) gradually increases; When the movable push plate (4) is at the end position, the entire air inlet (602) is located on a side of the movable push plate (4) away from the fixed frame (3), and a portion of the air inlet (702) is located on a side of the movable push plate (4) close to the fixed frame (3).

3. The vehicle-mounted unpowered air supply nozzle according to claim 2, characterized in that: An elastic member connected to the movable push plate (4) is provided in the air flow duct (2); When the movable push plate (4) is in the initial position, the middle position and the end position, the elastic member is in a compressed or stretched state, and the deformation amount of the elastic member gradually increases from the initial position to the middle position and then to the end position.

4. The vehicle-mounted non-powered air supply nozzle according to claim 3, characterized in that: The elastic member is a spring (8), one end of the spring (8) is connected to the fixed frame (3), and the other end is connected to the movable push plate (4).

5. The vehicle-mounted non-powered air supply nozzle according to claim 4, characterized in that: The central disturbance tube (6) is also provided with a spring mounting rod (603), the spring mounting rod (603) and the air outlet (601) are located on the same straight line, and the spring mounting rod (603) is located on the side facing away from the air outlet (601); A spring mounting groove (403) is provided on one side of the center of the movable push plate (4) close to the fixed frame (3); One end of the spring (8) is connected to the spring mounting rod (603), and the other end is arranged in the spring mounting groove (403).

6. The vehicle-mounted non-powered air supply nozzle according to claim 2, characterized in that: A first connecting rod (11) is hingedly connected to a side surface of the thrust valve (5) close to the fixed frame (3) via a connecting rod fixed rotating shaft (503), and a second connecting rod (10) is hingedly connected to a side surface of the movable push plate (4) close to the fixed frame (3) via a second connecting rod mounting shaft (404), and the first connecting rod (11) and the second connecting rod (10) are hingedly connected; A push rod group is provided on one side of the fixed frame (3) close to the movable push plate (4); when the movable push plate (4) is in an initial position, the push rod group is away from the second connecting rod (10) and / or the first connecting rod (11); the second connecting rod (10) and the first connecting rod (11) are in the same straight line and are in a dead point position; When the movable push plate (4) is in the middle position, the push rod assembly is in contact with the second connecting rod (10) and / or the first connecting rod (11), and the second connecting rod (10) and the first connecting rod (11) are in the same straight line and are in a dead point position; When the movable push plate (4) is at the end position, the push rod assembly contacts the second connecting rod (10) and / or the first connecting rod (11), and the second connecting rod (10) and the first connecting rod (11) are inclined; Two thrust valve rotating shafts (501) are provided on the outer periphery of the thrust valve (5); a line connecting the two thrust valve rotating shafts (501) does not pass through the central axis of the thrust valve (5), and the line connecting the two thrust valve rotating shafts (501) is located on a side away from the connecting rod fixed rotating shaft (503); the thrust valve rotating shaft (501) and the thrust valve opening and closing hole (405) on the side wall of the ventilation hole (406) are plug-connected to open and close the ventilation hole (406) by the rotating thrust valve (5).

7. The vehicle-mounted non-powered air supply nozzle according to claim 6, characterized in that: The push rod group comprises a first push rod (303) arranged on the fixed frame (3) and a second push rod (604) arranged on the central disturbance tube (6); The first top rod (303) and the second top rod (604) are located within the projection of the line connecting the second connecting rod (10) and the first connecting rod (11) on the fixed frame (3), and the first top rod (303) and the second top rod (604) are close to the hinge point of the second connecting rod (10) and the first connecting rod (11).

8. The vehicle-mounted non-powered air supply nozzle according to claim 6, characterized in that: A reset push rod (9) is also provided on the side of the movable push plate (4) away from the fixed frame (3); When the movable push plate (4) moves from the middle position to the initial position, the thrust valve (5) gradually contacts the reset push rod (9) from the end away from the reset push rod (9), and rotates under the action of the reset push rod (9) to close the ventilation hole (406); wherein the contact point between the reset push rod (9) and the thrust valve (5) is located on the side of the line connecting the two thrust valve rotating shafts (501) away from the connecting rod fixed rotating shaft (503).

9. The vehicle-mounted non-powered air supply nozzle according to claim 6, characterized in that: The first connecting rod (11) is also provided with a convex plate (1101), and the convex plate (1101) is located at one end close to the second connecting rod (10) and at a side close to the movable push plate (4); When the second connecting rod (10) and the first connecting rod (11) are in the same straight line, the convex plate (1101) is connected to a side of the second connecting rod (10) close to the movable push plate (4).

10. The vehicle-mounted non-powered air supply nozzle according to claim 1, characterized in that: The movable push plate (4) is provided with a central disturbance pipe moving hole (402) adapted to the outer diameter of the central disturbance pipe (6), and the movable push plate (4) is slidably connected to the central disturbance pipe (6) via the central disturbance pipe moving hole (402); The movable push plate (4) is located on a side close to the fixed frame (3) and is connected to an annular baffle (407) for shielding the air inlet (602) between the movable push plate (4) and the fixed frame (3).

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