Venetian blind with coil spring structure

Abstract

The utility model relates to the technical field of shutter, specifically disclose a shutter with volute spring structure to solve volute spring elasticity fast attenuation, transmission stability is poor, folding unit is easy to produce noise and the problem that cooperation accuracy is low, include: mounting bracket, the left and right sides of mounting bracket upper surface are provided with a pair of first recess and second recess, the upper surface fixed connection of mounting bracket has a pair of first mounting panel, the side swing joint of a pair of first mounting panel has volute spring disc, the upper surface of mounting bracket still is provided with drive mechanism, and drive mechanism includes the bidirectional drive motor of fixed connection in the upper surface of mounting bracket. Through the setting of volute spring disc and spring piece, the elastic force that can provide continuously and stably in the shutter adjustment process makes the blade's lifting or turning action more smooth, has reduced the adjustment jamming problem due to the insufficient elasticity, has further improved the use convenience of shutter.

Description

Technical Field

[0001] This utility model relates to the field of louver technology, specifically a louver with a spring-loaded structure. Background Technology

[0002] In the fields of architectural decoration and indoor environment regulation, louvers are widely used due to their excellent light-blocking, ventilation and decorative effects.

[0003] In operation, existing venetian blinds often suffer from problems such as rapid elastic decay and low reset accuracy in their spring structure, affecting the service life and adjustment effect of the blinds. The transmission mechanism mostly uses a single gear drive, which not only has poor transmission stability but also easily causes jamming during start-up and stop, resulting in poor operation feel. The blade connection of the folding unit is mostly a rigid connection without a buffer structure, which easily generates collision noise when folding or unfolding. At the same time, the fit between the blades is not precise enough, which can easily lead to loosening or misalignment, affecting the overall light blocking and aesthetic performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a louver with a coil spring structure, thereby solving the problems mentioned in the background art, such as rapid elastic decay of the coil spring, poor transmission stability, noise generated by the folding unit, and low fitting accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a louver with a coil spring structure, comprising: a mounting frame, wherein a pair of first grooves and second grooves are provided on the left and right sides of the upper surface of the mounting frame; a pair of first mounting plates are fixedly connected to the upper surface of the mounting frame; a coil spring disc is movably connected to one side of the pair of first mounting plates; a driving mechanism is also provided on the upper surface of the mounting frame; the driving mechanism includes a bidirectional drive motor fixedly connected to the upper surface of the mounting frame; a pair of rotating shafts are fixedly connected to the output ends on the left and right sides of the bidirectional drive motor; a rotating gear is fixedly connected to the output end on one side of the pair of rotating shafts; three third grooves are provided inside the rotating gear; a pair of first support plates are fixedly connected inside each of the three third grooves; a spring piece is movably connected to one side of the pair of first support plates; a pair of second support plates are fixedly connected inside each of the three third grooves; and a limit tooth is movably connected to one side of the pair of second support plates.

[0006] Preferably, a transmission mechanism is further provided inside the first groove. The transmission mechanism includes a ratchet rotating disk disposed inside the first groove. Three connecting plates are fixedly connected to one side of the ratchet rotating disk, and a rotating disk is fixedly connected to one side of the three connecting plates. Three fixing plates are fixedly connected to the outer wall of the ratchet rotating disk. A rotating wheel is fixedly connected to one side of the three fixing plates, and a first connecting rod is fixedly connected to one side of the rotating wheel. A spring plate is movably connected inside the coiled spring disk, and a pull rope is movably connected inside the rotating disk.

[0007] Preferably, a folding unit is also provided on one side of the mounting frame. The folding unit includes a mounting groove formed inside the mounting frame. Several blades are provided inside the mounting groove. A pair of buffer springs are movably connected to the front and rear sides of the mounting groove. A storage plate is fixedly connected to one side of the blades. A cavity is formed inside the storage plate. A fixing rod is movably connected inside the cavity. A second mounting plate is fixedly connected to the left and right sides of the blades. A pair of connecting frames are fixedly connected to the upper surface of the second mounting plates. A guide block is movably connected inside the pair of connecting frames.

[0008] Preferably, one side of the fixing rod is connected to one side of the blade.

[0009] Beneficial effects

[0010] This invention provides a louver with a spring-loaded structure. Compared with the prior art, it has the following advantages:

[0011] By using a coiled spring and spring plates, the venetian blinds provide a continuous and stable elastic force during adjustment, making the raising, lowering, and flipping of the slats smoother and reducing adjustment jamming caused by insufficient elasticity. This further enhances the ease of use of the venetian blinds. The transmission mechanism accurately transmits power and quickly locks the position when the venetian blinds stop adjusting, preventing accidental movement of the slats due to external forces and ensuring the stability of the adjusted state. The folding unit, with the storage plate and the fixing rod in the cavity, allows for more neat folding and storage of the slats, saving storage space. The guide block in the connecting frame guides the slats during unfolding, ensuring that the slats always remain neatly arranged. The slats are connected by the fixing rod and, with the help of the buffer spring, reduce collision noise during folding or unfolding. At the same time, the guide block ensures the precision of the fit between the slats, effectively preventing loosening or misalignment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention;

[0013] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A in the middle;

[0014] Figure 3 This is a schematic diagram of the internal structure of the mounting bracket according to an embodiment of the present invention.

[0015] In the diagram: 1. Mounting bracket; 2. First groove; 3. Second groove; 4. Bidirectional drive motor; 5. Rotating shaft; 6. Ratchet rotating disk; 7. Connecting plate; 8. Rotating disk; 9. Fixing plate; 10. Rotating wheel; 11. First connecting rod; 12. First mounting plate; 13. Spring plate; 14. Rotating gear; 15. Third groove; 16. First support plate; 17. Spring piece; 18. Second support plate; 19. Limiting tooth; 20. Mounting groove; 21. Leaf blade; 22. Buffer spring; 23. Storage plate; 24. Cavity; 25. Fixing rod; 26. Second mounting plate; 27. Connecting bracket; 28. Guide block; 29. ​​Spring piece; 30. Pull rope. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1:

[0018] Please see Figure 1 - Figure 3 As shown, this embodiment proposes a louver with a coil spring structure, including: a mounting frame 1, a pair of first grooves 2 and second grooves 3 on the left and right sides of the upper surface of the mounting frame 1, a pair of first mounting plates 12 fixedly connected to the upper surface of the mounting frame 1, a coil spring disc 13 movably connected to one side of the pair of first mounting plates 12, and a driving mechanism also provided on the upper surface of the mounting frame 1, the driving mechanism including a bidirectional drive motor 4, a rotating shaft 5, a rotating gear 14, a first support plate 16, a spring piece 17, a second support plate 18, and a limiting tooth 19. A bidirectional drive motor 4 is fixedly connected to the surface. A pair of rotating shafts 5 are fixedly connected to the output ends on the left and right sides of the bidirectional drive motor 4. A rotating gear 14 is fixedly connected to the output end on one side of the pair of rotating shafts 5. Three third grooves 15 are opened inside the rotating gear 14. A pair of first support plates 16 are fixedly connected inside each of the three third grooves 15. A spring piece 17 is movably connected to one side of the pair of first support plates 16. A pair of second support plates 18 are fixedly connected inside each of the three third grooves 15. A limit tooth 19 is movably connected to one side of the pair of second support plates 18.

[0019] When the blinds need to be adjusted, the bidirectional drive motor 4 starts, and its output ends on the left and right sides drive a pair of rotating shafts 5 to rotate synchronously. The rotating shafts 5 then drive the rotating gear 14 fixedly connected to them to rotate. During the rotation of the rotating gear 14, the structures in the three third grooves 15 work together, and the spring sheet 17 supported by the first support plate 16 provides elastic buffering to reduce the rigid impact during rotation and make the gear rotate more smoothly. At the same time, the limiting tooth 19 on the second support plate 18 cooperates with the outer wall structure of the ratchet rotating disk 6 to achieve intermittent driving or braking of the transmission mechanism through engagement and disengagement, thereby precisely controlling the rotation angle.

[0020] Preferred, such as Figure 1 and Figure 2 As shown, a transmission mechanism is also provided inside the first groove 2. The transmission mechanism includes a ratchet rotating disk 6, a connecting plate 7, a rotating disk 8, a fixed plate 9, a rotating wheel 10, and a first connecting rod 11. The ratchet rotating disk 6 is provided inside the first groove 2. Three connecting plates 7 are fixedly connected to one side of the ratchet rotating disk 6. The rotating disk 8 is fixedly connected to one side of the three connecting plates 7. Three fixed plates 9 are fixedly connected to the outer wall of the ratchet rotating disk 6. The rotating wheel 10 is fixedly connected to one side of the three fixed plates 9. The first connecting rod 11 is fixedly connected to one side of the rotating wheel 10. A spring plate 29 is movably connected inside the coiled spring disk 13. A pull rope 30 is movably connected inside the rotating disk 8.

[0021] When the rotating gear 14 of the drive mechanism rotates, it interacts with the ratchet rotating disk 6, causing the ratchet rotating disk 6 to rotate in the first groove 2. When the ratchet rotating disk 6 rotates, it drives the rotating disk 8 to rotate synchronously through the three connecting plates 7 fixedly connected to one side. The rotation of the rotating disk 8 causes the internally movable pull rope 30 to be wound or released, thereby realizing the traction adjustment of the louver blades 21. When the ratchet rotating disk 6 rotates, the three fixed plates 9 fixedly connected to its outer wall will drive the rotating wheel 10 to rotate together. The rotating wheel 10 then transmits power to the coil spring disk 13 through the first connecting rod 11 on one side.

[0022] Preferred, such as Figure 1 and Figure 3As shown, a folding unit is also provided on one side of the mounting frame 1. The folding unit includes a blade 21, a buffer spring 22, a storage plate 23, a fixing rod 25 in the cavity 24, a second mounting plate 26, a connecting frame 27, and a guide block 28. The mounting frame 1 has a mounting groove 20 inside, and several blades 21 are provided inside the mounting groove 20. A pair of buffer springs 22 are movably connected to the front and rear sides inside the mounting groove 20. A storage plate 23 is fixedly connected to one side of the blade 21. A cavity 24 is opened inside the storage plate 23. A fixing rod 25 is movably connected inside the cavity 24. The second mounting plate 26 is fixedly connected to the left and right sides of the blade 21. A pair of connecting frames 27 are fixedly connected to the upper surface of the second mounting plate 26. A guide block 28 is movably connected inside the pair of connecting frames 27. One side of the fixing rod 25 is connected to one side of the blade 21.

[0023] When the blinds need to be unfolded, the pull cord 30 pulls the rotating disk 8 under the drive of the transmission mechanism, which in turn causes the folding unit to start moving. Several blades 21 move synchronously under the connection of the fixing rod 25. The fixing rod 25 slides in the cavity 24 of the storage plate 23 to provide guidance for the unfolding of the blades 21. At the same time, the connecting brackets 27 on the second mounting plates 26 on the left and right sides of the blades 21 move with the blades 21. The guide block 28 inside the connecting bracket 27 slides in the mounting groove 20 to further ensure the stability of the blades 21 during the unfolding process and avoid deviation. When the blinds need to be folded up, the spring plate 29 in the coil spring disk 13 releases elastic potential energy, which drives the relevant components to move through the transmission mechanism. The blades 21 fold towards the storage plate 23 under the traction of the fixing rod 25, and the fixing rod 25 retracts into the cavity 24.

[0024] When this utility model is in use, when the louvers need to be adjusted, the drive mechanism on the upper surface of the mounting bracket 1 is activated first as the power source: the bidirectional drive motor 4 runs, and its left and right output ends drive a pair of rotating shafts 5 to rotate synchronously. The rotating shafts 5 drive the rotating gear 14 to rotate. In the three third grooves 15 of the rotating gear 14, the spring sheet 17 supported by the first support plate 16 provides elastic buffering to reduce rotational impact. The limiting tooth 19 on the second support plate 18 cooperates with the ratchet rotating disk 6 in the first groove 2. Intermittent drive is achieved through engagement and disengagement to precisely control the rotation angle of the transmission mechanism.

[0025] The transmission mechanism receives the power from the drive mechanism and transmits it to the folding unit: the ratchet rotating disk 6 rotates in the first groove 2 under the action of the rotating gear 14, and drives the rotating disk 8 to rotate synchronously through the three connecting plates 7, so that the pull rope 30 in the rotating disk 8 is wound up or released. At the same time, the fixing plate 9 on the outer wall of the ratchet rotating disk 6 drives the rotating wheel 10 to rotate. The rotating wheel 10 transmits the power to the coil spring disk 13 on the first mounting plate 12 through the first connecting rod 11, so that the spring plate 29 in the coil spring disk 13 deforms to store or release elastic potential energy.

[0026] The folding unit completes the unfolding or folding action under the drive of the transmission mechanism: When unfolding, the traction force of the pull rope 30 is transmitted to the blade 21 through the transmission mechanism. Several blades 21 move synchronously under the connection of the fixing rod 25 in the cavity 24 of the storage plate 23. The connecting frame 27 on the second mounting plate 26 on the left and right sides of the blade 21 moves accordingly. The guide block 28 slides in the mounting groove 20. With the guidance of the fixing rod 25, the blade 21 unfolds smoothly. The buffer spring 22 in the mounting groove 20 further reduces the collision during movement. When folding, the spring plate 29 in the coiled spring disc 13 releases elastic potential energy and is driven in the opposite direction by the transmission mechanism. The blade 21 is folded towards the storage plate 23 under the traction of the fixing rod 25. The fixing rod 25 is retracted into the cavity 24 to complete the storage.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A louver with a spring-loaded structure, comprising: Mounting bracket (1), wherein a pair of first grooves (2) and second grooves (3) are provided on the left and right sides of the upper surface of the mounting bracket (1), a pair of first mounting plates (12) are fixedly connected to the upper surface of the mounting bracket (1), a coiling disc (13) is movably connected to one side of the pair of first mounting plates (12), and a transmission mechanism is also provided on the upper surface of the mounting bracket (1). The transmission mechanism includes a ratchet rotating disc (6) disposed inside the first groove (2), three connecting plates (7) are fixedly connected to one side of the ratchet rotating disc (6), a rotating disc (8) is fixedly connected to one side of the three connecting plates (7), three fixing plates (9) are fixedly connected to the outer wall of the ratchet rotating disc (6), a rotating wheel (10) is fixedly connected to one side of the three fixing plates (9), a first connecting rod (11) is fixedly connected to one side of the rotating wheel (10), a spring plate (29) is movably connected inside the coiling disc (13), and a pull rope (30) is movably connected inside the rotating disc (8).

2. A louver with a spring-loaded structure according to claim 1, characterized in that: The first groove (2) is also provided with a drive mechanism. The drive mechanism includes a bidirectional drive motor (4) fixedly connected to the upper surface of the mounting bracket (1). A pair of rotating shafts (5) are fixedly connected to the output ends on the left and right sides of the bidirectional drive motor (4). A rotating gear (14) is fixedly connected to the output end on one side of the pair of rotating shafts (5). Three third grooves (15) are opened inside the rotating gear (14). A pair of first support plates (16) are fixedly connected inside each of the three third grooves (15). A spring piece (17) is movably connected to one side of the pair of first support plates (16). A pair of second support plates (18) are fixedly connected inside each of the three third grooves (15). A limit tooth (19) is movably connected to one side of the pair of second support plates (18).

3. A louver with a spring-loaded structure according to claim 1, characterized in that: A folding unit is also provided on one side of the mounting frame (1). The folding unit includes a mounting groove (20) opened inside the mounting frame (1). Several blades (21) are provided inside the mounting groove (20). A pair of buffer springs (22) are movably connected to the front and rear sides inside the mounting groove (20). A storage plate (23) is fixedly connected to one side of the blade (21). A cavity (24) is opened inside the storage plate (23). A fixing rod (25) is movably connected inside the cavity (24). A second mounting plate (26) is fixedly connected to the left and right sides of the blade (21). A pair of connecting brackets (27) are fixedly connected to the upper surface of the second mounting plate (26). A guide block (28) is movably connected inside the pair of connecting brackets (27).

4. A louver with a spring-loaded structure according to claim 3, characterized in that: One side of the fixing rod (25) is connected to one side of the blade (21).

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