Semi-automatic spring sunshade roller shutter transmission rotating shaft

Abstract

The utility model discloses a semi-automatic spring sunshade roller shutter transmission rotating shaft which comprises two mounting frames in mirror symmetry, a hollow block is fixed to the inner side of each mounting frame, a sleeve is movably connected between the two hollow blocks jointly, an upper rolling pipe is connected to the outer portion of the sleeve in a sleeved mode, sunshade cloth is wound around the outer portion of the upper rolling pipe, and the outer portion of the upper rolling pipe is provided with a rotating shaft. The tail end of the sunshade cloth is fixedly connected with a lower reel pipe, the two sides of the sleeve are each provided with a transmission rotating shaft made of metal, and the outer side of each transmission rotating shaft is connected with one hollow block. The transmission rotating shaft is made of metal, so that the service life of the transmission rotating shaft is prolonged, the overall strength and damage resistance of the transmission rotating shaft are improved, and the situation that the transmission rotating shaft is deformed and broken after being used for a long time, and normal storage and unfolding of the sunshade curtain are affected is avoided; and therefore, the sunshade curtain can be conveniently and quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of ship supplies, in particular to a semi-automatic spring sunshade rolling curtain driving rotating shaft. Background Art

[0002] In order to ensure a clear view for ferry drivers during navigation operations, while enjoying sunlight, eliminate glaring light indoors, and reduce the invasion of ultraviolet rays. Transparent semi-automatic spring sunshade rolling curtains (hereinafter referred to as sunshade rolling curtains) are installed on the windows around the ferry cab. Firstly, it improves the visual comfort of the drivers; secondly, it provides heat insulation, reduces the indoor environmental temperature in summer, shortens the working time of air conditioning refrigeration, improves energy efficiency, and reduces energy consumption.

[0003] With frequent operations of pulling down at sunrise and retracting at sunset (except on rainy days), and the driving rotating shaft in the rolling curtain is made of hollow plastic material, after being used many times, the driving rotating shaft is prone to deformation and fracture, resulting in the failure of the rolling function of the sunshade rolling curtain in the ferry cab, and the curtain cloth directly hangs down. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a semi-automatic spring sunshade rolling curtain driving rotating shaft.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a semi-automatic spring sunshade rolling curtain driving rotating shaft, including two mirror-symmetrical mounting brackets, each of the inner sides of the two mounting brackets is fixed with a hollow block, a sleeve is movably connected between the two hollow blocks, a winding tube is sleeved outside the sleeve, a sunshade cloth is wound outside the winding tube, the end of the sunshade cloth is fixedly connected to a lower winding tube, a driving rotating shaft made of metal is provided on each side of the sleeve, and each driving rotating shaft is connected to one of the hollow blocks on the outside.

[0006] As a further description of the above technical scheme: axially symmetric first positioning grooves are opened on the inner wall of the sleeve, first positioning blocks are movably inserted into the first positioning grooves, the first positioning blocks are fixedly connected to a bushing, internal threads are opened on the inner wall of the bushing, external threads are provided on the outside of the driving rotating shaft, the driving rotating shaft is threadedly connected to the bushing, axially symmetric second positioning grooves are opened on the outside of the sleeve, second positioning blocks are movably connected to the second positioning grooves, and the second positioning blocks are fixed on the inner wall of the winding tube.

[0007] As a further description of the above technical scheme: a hexagonal groove is horizontally opened on the outside of the driving rotating shaft, a hexagonal block is movably inserted into the hexagonal groove, a support shaft is horizontally fixed at the end of each hexagonal block, and the support shaft rotates through the hollow block.

[0008] As a further description of the above technical solution: A first spring is horizontally fixed inside one of the hollow blocks. The end of the first spring is fixedly connected to a push plate. The push plate is axially slidably connected inside the hollow block. Horizontally rotatably connected to the outside of the push plate is one of the support shafts.

[0009] As a further description of the above technical solution: Inside another hollow block is provided a ratchet wheel. The ratchet wheel is fixedly sleeved inside the support shaft, and at this position, the support shaft is rotatably connected inside the hollow block. A torsion spring is sleeved outside the support shaft. A through groove penetrates through the lower part of the hollow block. Telescopically connected inside the through groove is a triangular block that meshes with the ratchet wheel.

[0010] As a further description of the above technical solution: Vertically opened on each of the two sides of the inner wall of the through groove is a sliding groove. Slidably connected inside each sliding groove is a slider. A second spring is jointly fixed between the slider and the sliding groove. Jointly fixed between the two sliders is a support block. The support block is fixed to the bottom surface of the triangular block. Fixedly connected to the bottom surface of the support block is a pull rod.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, for the semi-automatic spring sunshade rolling curtain drive rotating shaft of this utility model, by setting the material of the drive rotating shaft as a metal material, the service life of the drive rotating shaft is improved, its overall strength and anti-destruction ability are enhanced, and the situation of deformation and fracture of the drive rotating shaft after being used for a long time, which affects the normal storage and unfolding of the sunshade curtain, is avoided. And connecting the whole sunshade curtain movably between the two hollow blocks facilitates the quick disassembly and assembly of the sunshade curtain. Description of the Drawings

[0013] Figure 1 It is a three-dimensional view of the overall structure of a semi-automatic spring sunshade rolling curtain drive rotating shaft proposed by this utility model;

[0014] Figure 2 It is a main sectional view of the overall structure of a semi-automatic spring sunshade rolling curtain drive rotating shaft proposed by this utility model;

[0015] Figure 3 It is a semi-automatic spring sunshade rolling curtain drive rotating shaft proposed by this utility model Figure 2 The enlarged view of the structure at A in the figure.

[0016] Legend Explanation:

[0017] 1. Mounting frame; 2. Hollow block; 3. Driving rotating shaft; 4. Bushing; 5. Upper winding tube; 6. Sunshade cloth; 7. Lower winding tube; 8. Pull rod; 9. Ratchet; 10. Coil spring; 11. Support shaft; 12. Hexagonal block; 13. Hexagonal groove; 14. First positioning block; 15. First positioning groove; 16. Second positioning block; 17. Second positioning groove; 18. Sleeve; 19. Push plate; 20. First spring; 21. Triangular block; 22. Support block; 23. Through groove; 24. Slide block; 25. Second spring; 26. Slide groove. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Refer to Figures 1 to 3 As shown in the figure, a semi-automatic spring sunshade rolling curtain driving rotating shaft provided by the present invention: includes two mirror-symmetric mounting frames 1, each of the inner sides of the two mounting frames 1 is fixed with a hollow block 2, a sleeve 18 is movably connected between the two hollow blocks 2, an upper winding tube 5 is sleeved outside the sleeve 18, a sunshade cloth 6 is wound outside the upper winding tube 5, the end of the sunshade cloth 6 is fixedly connected to a lower winding tube 7, each of the two sides of the sleeve 18 is provided with a driving rotating shaft 3 made of metal, each of the outer sides of the two driving rotating shafts 3 is connected to a hollow block 2, axially symmetric first positioning grooves 15 are axially opened on the inner wall of the sleeve 18, first positioning blocks 14 are movably inserted into the first positioning grooves 15, the first positioning blocks 14 are fixedly connected to bushings 4, internal threads are opened on the inner walls of the bushings 4, external threads are provided on the outer sides of the driving rotating shafts 3, and the driving rotating shafts 3 are threadedly connected into the bushings 4; axially symmetric second positioning grooves 17 are axially opened on the outside of the sleeve 18, second positioning blocks 16 are movably connected in the second positioning grooves 17, the second positioning blocks 16 are fixed on the inner wall of the upper winding tube 5, hexagonal grooves 13 are horizontally opened on the outer sides of the driving rotating shafts 3, hexagonal blocks 12 are movably inserted into the hexagonal grooves 13, each of the ends of the two hexagonal blocks 12 is horizontally fixed with a support shaft 11, and the support shafts 11 rotate through the hollow blocks 2.

[0020] A first spring 20 is horizontally fixed inside one of the hollow blocks 2. The end of the first spring 20 is fixedly connected to a push plate 19. The push plate 19 is axially slidably connected inside the hollow block 2. Horizontally rotatably connected to the outside of the push plate 19 is a support shaft 11. Inside another hollow block 2 is provided a ratchet wheel 9. The ratchet wheel 9 is fixedly sleeved inside the support shaft 11, and at this position, the support shaft 11 is rotatably connected inside the hollow block 2. A coil spring 10 is sleeved outside the support shaft 11. Below the hollow block 2 penetrates a through groove 23. Telescopically connected inside the through groove 23 is a triangular block 21 that meshes with the ratchet wheel 9. On both sides of the inner wall of the through groove 23, a chute 26 is vertically opened. Slidably connected inside each chute 26 is a slider 24. A second spring 25 is fixedly provided between the slider 24 and the chute 26. Fixed between the two sliders 24 is a support block 22. The support block 22 is fixed to the bottom surface of the triangular block 21. Fixedly connected to the bottom surface of the support block 22 is a pull rod 8.

[0021] By setting the material of the transmission rotating shaft 3 to a metal material, the service life of the transmission rotating shaft 3 is increased, its overall strength and anti-destruction ability are improved, and the deformation and fracture of the transmission rotating shaft 3 after long-term use are avoided, which affects the normal storage and deployment of the sunshade curtain. And connecting the sunshade curtain integrally and movably between the two hollow blocks 2 facilitates the quick disassembly and assembly of the sunshade curtain.

[0022] Working principle: When assembling the sunshade curtain, first fix the two mounting brackets 1 to both sides of the top surface of the window by bolts. Then, sleeve the upper winding tube 5 outside the sleeve 18, align the second positioning block 16 with the second positioning groove 17 for installation. Then, install the bushing 4 inside the inner wall of the sleeve 18 through the first positioning block 14 and the first positioning groove 15. Then, screw the transmission rotating shaft 3 into the bushing 4. Then, dock one side of the transmission rotating shaft 3 with the hexagonal block 12 on the mounting bracket 1 on the side provided with the pull rod 8, and install the hexagonal block 12 into the hexagonal groove 13. Then, press the hexagonal block 12 on the other side, so that the push plate 19 moves into the hollow block 2, and the first spring 20 is compressed, so that the hexagonal block 12 at this position is aligned with the hexagonal groove 13 on the other side of the transmission rotating shaft 3. Then release it, so that the hexagonal block 12 is inserted into the hexagonal groove 13, thus completing the installation of the sunshade curtain. When it is necessary to pull down the sunshade curtain, just pull down the pull rod 8. The pull rod 8 drives the support block 22 to descend. The support block 22 drives the triangular block 21 to descend, and the second spring 25 is compressed, so that the triangular block 21 is separated from the ratchet wheel 9. Then, by pulling down the lower winding tube 7, the ratchet wheel 9 rotates, and at the same time the coil spring 10 is compressed. After pulling the curtain down to the required length, release the pull rod 8, and the second spring 25 resets. When the second spring 25 resets, it pushes the triangular block 21 to mesh with the ratchet wheel 9 to limit the ratchet wheel 9. When it is necessary to retract it, just pull down the pull rod 8, the triangular block 21 is separated from the ratchet wheel 9, and the compressed coil spring 10 resets. The reset of the coil spring 10 drives the reverse rotation for a long time, and the sunshade cloth 6 is retracted upward, thus completing the storage of the sunshade curtain.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A semi-automatic spring sunshade rolling curtain transmission rotating shaft, comprising two mirror-symmetric mounting brackets (1), characterized in that: A hollow block (2) is fixed to the inner side of each of the two mounting brackets (1). A sleeve (18) is movably connected between the two hollow blocks (2). A winding tube (5) is sleeved on the outside of the sleeve (18). A sunshade cloth (6) is wound around the outside of the winding tube (5). The end of the sunshade cloth (6) is fixedly connected to a lower winding tube (7). A transmission rotating shaft (3) made of metal is provided on each side of the sleeve (18). Each transmission rotating shaft (3) is connected to one of the hollow blocks (2) on the outside.

2. A semi-automatic spring sunshade rolling curtain transmission rotating shaft according to claim 1, characterized in that: Axially symmetric first positioning grooves (15) are formed in the inner wall of the sleeve (18). A first positioning block (14) is movably inserted into the first positioning grooves (15). The first positioning block (14) is fixedly connected to a bushing (4). Internal threads are formed in the inner wall of the bushing (4). External threads are provided on the outside of the transmission rotating shaft (3). The transmission rotating shaft (3) is threadedly connected to the bushing (4). Axially symmetric second positioning grooves (17) are formed in the outside of the sleeve (18). A second positioning block (16) is movably connected to the second positioning grooves (17). The second positioning block (16) is fixed to the inner wall of the winding tube (5).

3. A semi-automatic spring sunshade rolling curtain transmission rotating shaft according to claim 1, characterized in that: A hexagonal groove (13) is horizontally formed in the outside of the transmission rotating shaft (3). A hexagonal block (12) is movably inserted into the hexagonal groove (13). A support shaft (11) is horizontally fixed to the end of each hexagonal block (12). The support shaft (11) rotatably penetrates the hollow block (2).

4. A semi-automatic spring sunshade rolling curtain transmission rotating shaft according to claim 3, characterized in that: A first spring (20) is horizontally fixed in one of the hollow blocks (2). The end of the first spring (20) is fixedly connected to a push plate (19). The push plate (19) is axially slidably connected in the hollow block (2). A support shaft (11) is horizontally rotatably connected to the outside of the push plate (19).

5. A semi-automatic spring sunshade rolling curtain transmission rotating shaft according to claim 3, characterized in that: A ratchet wheel (9) is provided in the other hollow block (2). The ratchet wheel (9) is fixedly sleeved on the support shaft (11). The support shaft (11) at this position is rotatably connected to the hollow block (2). A coil spring (10) is sleeved on the outside of the support shaft (11). A through groove (23) penetrates through the lower part of the hollow block (2). A triangular block (21) that meshes with the ratchet wheel (9) is telescopically connected in the through groove (23).

6. A semi-automatic spring sunshade rolling curtain transmission rotating shaft according to claim 5, characterized in that: A chute (26) is vertically formed on each side of the inner wall of the through groove (23). A slider (24) is slidably connected to each chute (26). A second spring (25) is fixedly connected between the slider (24) and the chute (26). A support block (22) is fixedly connected between the two sliders (24). The support block (22) is fixed to the bottom surface of the triangular block (21). A pull rod (8) is fixedly connected to the bottom surface of the support block (22).

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