Roller shutter device for return air window of air conditioner

Abstract

The utility model relates to the technical field of roller shutter devices, in particular to a roller shutter device for an air return window of an air conditioner. Comprising a frame body, a rolling driving mechanism installed at the top of the frame body, a counterweight plate, a plurality of louver boards, a pull rope and a fixed-distance connecting piece, and the rolling driving mechanism comprises a rolling shaft rotationally installed on the frame body and a driving motor providing power for rotation of the rolling shaft; at least two groups of pull ropes are arranged, one ends of the two groups of pull ropes are connected with the counterweight plate, and the other ends of the two groups of pull ropes are connected with the reel; the fixed-distance connecting piece comprises two flexible ropes, the louver boards are distributed between the two flexible ropes from top to bottom in a fixed-distance mode, the top ends of the flexible ropes are fixedly connected with the upper portion of the frame body, the bottom ends of the pull ropes are fixedly connected with the balance weight plate, through holes are formed in the louver boards, and the pull ropes penetrate through the through holes. Adaptive adjustment can be carried out according to actual working conditions, the ventilation state can be completely started, and the ventilation efficiency of large-space places such as workshops is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling curtain devices, in particular to an air-conditioning return window rolling curtain device. Background Art

[0002] Air conditioner return vents, also known as air intakes or exhaust vents, primarily draw contaminated indoor air back into the air conditioning system for recirculation or discharge outside, thereby maintaining fresh air and maintaining a suitable temperature and humidity. Existing air conditioner return vents often utilize louvers. Chinese utility model patent CN221005405U discloses a hinged louvered return vent for air conditioners. The vent comprises a main frame, a rotating frame rotatably mounted within the main frame, louvers equidistantly mounted on one side of the rotating frame, and support columns fixed to the tops of both ends of the rotating frame. This allows the rotating frame to be removed for cleaning or replacement, reducing costs and avoiding the need for additional cleaning and maintenance steps.

[0003] However, in places with larger spaces such as factories, the air in the factory needs to be replaced regularly, and the ventilation volume is large; and the louvers at the return air inlet will interfere with the passing airflow, affecting the ventilation efficiency of the air in the factory. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides an air-conditioning return air window roller curtain device which can be adaptively adjusted according to actual working conditions, the ventilation state can be fully opened, and the ventilation efficiency of large spaces such as factories can be effectively improved.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an air conditioner return window roller blind device, comprising a frame, a reeling drive mechanism mounted on the top of the frame, a counterweight plate, a plurality of louvers, a pull cord, and a distance connector, wherein the reeling drive mechanism comprises a reel rotatably mounted on the frame and a drive motor providing power for the reel rotation; the pull cords comprise at least two groups, one end of each of the two groups of pull cords being connected to the counterweight plate, and the other end of each of the two groups of pull cords being connected to the reel;

[0006] The distance connecting member includes two flexible ropes, and the louver is distributed at a fixed distance between the two flexible ropes from top to bottom. The top end of the flexible rope is fixedly connected to the upper part of the frame, and the bottom end of the pull rope is fixedly connected to the counterweight plate. The louver is provided with a through hole, and the pull rope passes through the through hole.

[0007] The distance connecting members may be one group or multiple groups, and the flexible ropes may be fiber ropes or other flexible force-bearing deformation ropes; the two sides of the louver are respectively rotatably connected to the two flexible ropes.

[0008] Preferably, open grooves are provided on both sides of the vertical inner walls of the frame, and the two ends of the counterweight plate and the louver plate can be slidably installed in the open grooves.

[0009] Preferably, shaft rods are fixedly installed at both ends of the counterweight plate, a slide groove connected to the open groove is provided on the frame, the shaft rod can be slidably installed in the slide groove, a gear is fixedly installed on the shaft rod, and a driving assembly is installed at the bottom of both sides of the frame, and the driving assembly includes a rack slidably installed on the frame and a cylinder body that provides power for the sliding of the rack; an elastic connecting piece is provided at the top of the flexible rope, and the flexible rope is elastically connected to the top of the frame body through the elastic connecting piece; further, the cylinder body is preferably an electric cylinder, and a pneumatic cylinder or a hydraulic cylinder can also be used; the elastic connecting piece is preferably a tension spring, and other equivalent parts with elastic stretching effect such as an elastic belt can also be used.

[0010] Preferably, the rack is located on the upper side of the gear.

[0011] Preferably, it also includes a clamping member, and the distance connecting members are at least two groups, and the two groups of distance connecting members are symmetrically arranged on both sides of the louver. The two ends of the clamping member are respectively connected to the two flexible ropes on the same distance connecting member, and the louver is clamped into the clamping member; further, the clamping member is rotatably connected to the corresponding flexible rope.

[0012] Preferably, the louver plate is a plastic plate, and an arc-shaped opening is provided in the middle of the clamp to allow the louver plate to pass through; the louver plate passes through the arc-shaped opening.

[0013] Furthermore, the louver plates may be made of thin-walled metal plates or thin-walled plastic plates, and the louver plates may be shaped and deformed when subjected to force.

[0014] Preferably, a latch tongue is provided at the louver plate, a U-shaped latch portion is provided on the latch component, and the latch tongue is latched into the U-shaped latch portion.

[0015] Compared with the prior art, the utility model provides an air-conditioning return air window roller shutter device, which has the following beneficial effects: in normal state, the counterweight plate hangs down naturally, and the louvers are evenly spaced to form shutters to prevent external birds and the like from entering the return air window; when ventilation is required in the factory building, the driving motor drives the reel to rotate, and the pull rope is wound around the reel. At the same time, the pull rope pulls the counterweight plate upward, and the louvers are gradually stacked on the counterweight plate from bottom to top until the counterweight plate rises to the upper part of the frame. The air-conditioning return air window is in an unobstructed state, which can accelerate the passage of airflow and can be adaptively adjusted according to actual working conditions. The ventilation state can be fully opened, effectively improving the ventilation efficiency of large spaces such as factories. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0017] Figure 2 It is a front planar structural schematic diagram of the utility model.

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0019] Figure 4 This utility model Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamp of the present utility model.

[0021] Markings in the accompanying drawings: 1. frame; 2. counterweight plate; 3. louver; 4. pull rope; 5. reel; 6. drive motor; 7. flexible rope; 8. through hole; 9. open slot; 10. shaft; 11. slide; 12. gear; 13. rack; 14. cylinder; 15. clamp; 16. elastic connector; 17. arc-shaped opening; 18. tongue; 19. U-shaped clamp. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] Example 1

[0026] Please refer to Figure 1-4The louver 3 is fixedly connected to the upper part of the frame 1 and the lower part of the frame 1, and the louver 3 is fixedly connected to the louver 3. A through hole 8 is provided on the louver 3, and the louver 3 passes through the through hole 8; the fixed distance connecting part can be one or more groups, and the flexible rope 7 can be made of fiber rope or other flexible force-bearing deformation rope; the two sides of the louver 3 are rotatably connected with the two flexible ropes 7 respectively; the counterweight plate 2 is preferably a solid cast iron plate.

[0027] Specifically, open slots 9 are provided on both sides of the vertical inner walls of the frame 1 , and both ends of the counterweight plate 2 and the louver plate 3 can be slidably installed in the open slots 9 up and down.

[0028] Specifically, shafts 10 are fixedly installed at both ends of the counterweight plate 2, and a slide groove 11 connected to the open groove 9 is provided on the frame 1. The shaft 10 can be slidably installed in the slide groove 11, and a gear 12 is fixedly installed on the shaft 10. Drive components are installed at the bottom of both sides of the frame 1, and the drive components include a rack 13 slidably installed on the frame 1 and a cylinder 14 that provides power for the sliding of the rack 13; an elastic connector 16 is provided at the top of the flexible rope 7, and the flexible rope 7 is elastically connected to the top of the frame 1 through the elastic connector 16; further, the cylinder 14 is preferably an electric cylinder, and a pneumatic cylinder or a hydraulic cylinder can also be used; the elastic connector 16 is preferably a tension spring, and other equivalent parts with elastic stretching effect such as an elastic belt can also be used.

[0029] Specifically, the rack 13 and the gear 12 are in meshing state, and the rack 13 is located above the gear 12 .

[0030] The air conditioning return window roller blind device provided in this embodiment has an opening slot 9 that can effectively limit the travel trajectory of the counterweight plate 2 and each louver 3 to prevent the counterweight plate 2 and the louver 3 from swinging when encountering external forces such as strong winds; when the louver 3 is used as a shutter, the counterweight plate 2 falls to the bottom of the frame 1, and the cylinder 14 is started, so that the cylinder 14 drives the rack 13 to move, the rack 13 is engaged with the gear 12, the gear 12 rotates, and the counterweight plate 2 rotates synchronously with the gear 12. At this time, the same distance is connected A flexible rope 7 on the connecting part moves downward and pulls one side of the louver 3 downward, while the other flexible rope 7 is pulled upward under the action of the elastic connecting part 16 and pulls the other side of the louver 3 upward. The inclination angle of the louver 3 can be adjusted to adaptively adjust the ventilation volume at the air-conditioning return air window; and the rack 13 located above the gear 12 can prevent the gear 12 from moving upward, thereby preventing the louver 3 from sliding up and down along the opening slot 9 after being affected by strong airflow, thereby improving the wind resistance of the air-conditioning return air roller shutter device.

[0031] Example 2

[0032] The air conditioning return window roller blind device provided in Example 1 is further optimized. Specifically, Figure 3-4 As shown, it also includes a clamp 15, and there are at least two groups of fixed-distance connecting members. The two groups of fixed-distance connecting members are symmetrically arranged on both sides of the louver 3. The two ends of the clamp 15 are respectively connected to the two flexible ropes 7 on the same fixed-distance connecting member, and the louver 3 is clamped into the clamp 15; further, the clamp 15 is rotatably connected to the corresponding flexible rope 7.

[0033] Specifically, such as Figure 5 As shown, the louver 3 is made of a plastic plate, and an arc-shaped opening 17 is provided in the middle of the clamp 15 to allow the louver 3 to pass through; the louver 3 passes through the arc-shaped opening 17; further, the louver 3 can be made of a thin-walled metal plate or a thin-walled plastic plate, and the louver 3 can be shaped and deformed after being subjected to force.

[0034] Specifically, a latching tongue 18 is provided on the louver 3 , a U-shaped latching portion 19 is provided on the latching member 15 , and the latching tongue 18 is latched into the U-shaped latching portion 19 .

[0035] The air conditioning return air window roller blind device provided in this embodiment can bend the louver 3 and insert it into the arc-shaped opening 17. When the louver 3 is dirty or aged, the louver 3 can be removed for cleaning or replacement; the tongue 18 and the U-shaped clamping portion 19 can improve the connection stability between the clamp 15 and the louver 3, and prevent the clamp 15 from sliding laterally from the louver 3.

[0036] The usage process of the air-conditioning return air window roller shutter device provided by the utility model is as follows: the frame 1 is fixedly installed at the return air outlet of the air conditioner. In normal use, the counterweight plate 2 naturally hangs down to the bottom of the frame 1, and the louvers 3 are evenly distributed. The gear 12 can be driven to rotate by the driving component according to actual needs, and the inclination angle of the louvers 3 can be adaptively adjusted to adjust the ventilation volume at the return air outlet of the air conditioner; when ventilation is required in the factory building, the driving component is reset, the rack 13 is moved away from above the gear 12, the winding drive mechanism winds the pull rope 4 around the reel 5, and the counterweight plate 2 moves up until the counterweight plate 2 moves to the upper limit position of the frame 1, the louvers 3 overlap each other, the return air outlet of the air conditioner is in an unobstructed state, and ventilation operation can be carried out.

[0037] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. An air conditioning return window curtain device, characterized in that: It comprises a frame (1), a reeling drive mechanism mounted on the top of the frame (1), a counterweight plate (2), a plurality of louvers (3), a pull rope (4), and a distance connecting piece; The reeling drive mechanism comprises a reel (5) rotatably mounted on the frame (1) and a drive motor (6) providing power for the reel (5) to rotate; the pull ropes (4) are at least two groups, one end of each of the two groups of pull ropes (4) is connected to the counterweight plate (2), and the other end of each of the two groups of pull ropes (4) is connected to the reel (5); The distance connecting member comprises two flexible ropes (7), the louver (3) is distributed at a fixed distance between the two flexible ropes (7) from top to bottom, the top end of the flexible rope (7) is fixedly connected to the upper part of the frame (1), the bottom end of the pull rope (4) is fixedly connected to the counterweight plate (2), the louver (3) is provided with a through hole (8), and the pull rope (4) passes through the through hole (8).

2. The air conditioning return window roller blind device according to claim 1, characterized in that: Open slots (9) are provided on both sides of the vertical inner walls of the frame (1), and both ends of the counterweight plate (2) and the louver plate (3) are slidably installed in the open slots (9).

3. The air conditioning return window roller blind device according to claim 2, characterized in that: Both ends of the counterweight plate (2) are fixedly mounted with shafts (10), the frame (1) is provided with a slide groove (11) connected to the opening groove (9), the shaft (10) can be slidably mounted in the slide groove (11), the shaft (10) is fixedly mounted with a gear (12), the bottom of both sides of the frame (1) are mounted with a driving assembly, the driving assembly includes a rack (13) slidably mounted on the frame (1) and a cylinder (14) providing power for the rack (13) to slide; the top of the flexible rope (7) is provided with an elastic connector (16), and the flexible rope (7) is elastically connected to the top of the frame (1) through the elastic connector (16).

4. The air conditioning return window roller blind device according to claim 3, characterized in that: The rack (13) is located on the upper side of the gear (12).

5. The air-conditioning return air window roller blind device according to claim 1 or 4, characterized in that: It also includes a clamping member (15), and there are at least two groups of fixed-distance connecting members. The two ends of the clamping member (15) are respectively connected to two flexible ropes (7) on the same fixed-distance connecting member, and the louver (3) is clamped into the clamping member (15).

6. The air conditioning return window roller blind device according to claim 5, characterized in that: The middle of the clamp (15) is provided with an arc-shaped opening (17) for allowing the louver plate (3) to pass through; the louver plate (3) passes through the arc-shaped opening (17).

7. The air-conditioning return window roller blind device according to claim 6, characterized in that: The louver plate (3) is provided with a latch tongue (18), the latch component (15) is provided with a U-shaped latch portion (19), and the latch tongue (18) is latched into the U-shaped latch portion (19).

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