Synchronous belt driving device for automobile side window sunshade curtain

Abstract

The utility model discloses an automobile side window sunshade curtain synchronous belt driving device, which relates to the technical field of automobile sunshade curtains and comprises a reel, a sunshade curtain is arranged on the reel, and one end of the sunshade curtain is connected with a cross rod. Through the positioning rod, the sleeve and the limiting plate, when the driving wheel drives the synchronous belt to move to adjust the shielding height of the sunshade curtain, the driving wheel, the driven wheel and the convex teeth on the synchronous belt are meshed to achieve up-down reciprocating motion of the sunshade curtain, meanwhile, the sleeved spring can drive the auxiliary wheel to abut against the synchronous belt, and therefore the sunshade curtain can be fixed. The tensioning degree of the synchronous belt between the driving wheel and the driven wheel is adjusted, it is ensured that the upper end and the lower end of the synchronous belt make close contact with the driving wheel and the driven wheel, friction force in the transmission process is improved, and position difference of the two ends of the top cross rod caused by sliding of the synchronous belts on the two sides is avoided. The situation that the sunshade curtain is blocked, inclined and even cannot operate normally in the folding and unfolding process is avoided, and stable operation of the sunshade curtain is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile sunshade curtain, especially to a synchronous belt driving device of automobile side window sunshade curtain. BACKGROUND

[0002] The automobile side window sunshade curtain is installed on the side window of the automobile door, is used for shielding sunlight, ultraviolet and protecting privacy, can effectively block the sunlight from directly entering the car, reduces the heat transfer, reduces the temperature in the car, reduces the air conditioning load, improves the energy efficiency, can also avoid the fading and aging of the interior decoration, seat and the like due to long-term sun exposure, can block the outside view, makes the situation in the car not easy to be spied, creates a relatively private space for the passengers in the car, increases the sense of security when parking or having important articles in the car.

[0003] The existing automobile side window sunshade curtain drive is usually driven by the driving wheel to drive the driven wheel, and when being used, the sunshade curtain part is caused to form a concave deformation due to the influence of the passenger leaning or the curiosity of stirring, and due to the elasticity of the synchronous belts on both sides, the tension changes in the transmission process, a slight sliding phenomenon occurs, the transmission ratio is not constant, there is a movement difference between the two ends of the sunshade curtain, so that the top end of the sunshade curtain cannot be accurately guaranteed to move synchronously during subsequent adjustment, and related components are easily damaged, thereby reducing the service life of the sunshade curtain. UTILITY MODEL CONTENTS

[0004] The utility model discloses a synchronous belt driving device of automobile side window sunshade curtain, which solves the problem of short service life of the sunshade curtain in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A synchronous belt driving device of automobile side window sunshade curtain, comprising a reel, a sunshade curtain is arranged on the reel, one end of the sunshade curtain is connected with a cross bar, two ends of the reel are respectively provided with a transmission mechanism, the transmission mechanism comprises a driving wheel and a driven wheel, and the driving wheel and the driven wheel are connected through a synchronous belt, a sliding block is fixedly connected on the synchronous belt, a connecting block is fixedly connected on the side wall of the sliding block, and one side of the connecting block away from the sliding block is connected with the cross bar.

[0007] A guard plate is sleeved on the transmission mechanism, a tensioning mechanism is arranged in the inside of the guard plate, the tensioning mechanism is arranged in the middle of the synchronous belt, a limiting mechanism is arranged between the sliding block and the inner wall of the guard plate, and the length of the limiting mechanism is less than the distance between the driving wheel and the driven wheel.

[0008] As a further preferred of the technical solution, one end of the reel is installed with a reduction motor through the assembling seat, and the output shaft of the reduction motor is connected with the reel through a shaft coupling.

[0009] As a further preferred of the technical solution, the tensioning mechanism comprises a positioning rod, one end of the positioning rod is fixedly connected with the inner wall of the guard plate, and the other end of the positioning rod is fixedly connected with a limiting plate.

[0010] A spring and a sleeve are sleeved on the positioning rod, one end of the spring is connected with the positioning rod, and the other end of the spring is connected with the side wall of the sleeve.

[0011] As a further preferred of the technical solution, the sleeve is connected with an auxiliary wheel through a key on one side, the position of the auxiliary wheel corresponds to the position of the synchronous belt, and the side wall of the auxiliary wheel abuts against the synchronous belt.

[0012] As a further preferred of the technical solution, the limiting mechanism comprises a fixing seat, a sliding groove is formed in the fixing seat, and a top plate is fixedly connected with the top of the fixing seat.

[0013] An active block is slidably connected in the sliding groove, and the width of the active block is equal to the width of the sliding groove.

[0014] As a further preferred of the technical solution, the fixing seat is fixedly connected with the inner wall of the guard plate, and one end of the active block extending out of the sliding groove is fixedly connected with the side wall of the sliding block.

[0015] The utility model has the following beneficial effects:

[0016] 1. The positioning rod, the sleeve and the limiting plate are arranged, when the sunshade curtain blocking height is adjusted by driving the synchronous belt by the driving wheel, the driving wheel, the driven wheel and the convex teeth on the synchronous belt are engaged, the up-down reciprocating motion of the sunshade curtain is realized, the sleeved spring can drive the auxiliary wheel to abut against the synchronous belt, the tensioning degree of the synchronous belt between the driving wheel and the driven wheel is adjusted, the up-down two ends of the synchronous belt are ensured to be in close contact with the driving wheel and the driven wheel, the friction in the transmission process is improved, the position difference of the two ends of the top cross rod is avoided due to the sliding phenomenon of the synchronous belt on both sides, the jamming, skew or even normal operation of the sunshade curtain in the folding and unfolding process is avoided, and the stable operation of the sunshade curtain is ensured.

[0017] 2. The fixing seat and the sliding groove are arranged, the accurate guide for the movement of the active block is provided, in the process of adjusting the sunshade curtain, the active block can limit the two ends of the cross rod to a certain extent, the stable movement of the top of the sunshade curtain is ensured, the overall bearing capacity of the sunshade curtain is improved, the deformation of the sunshade curtain caused by human factors is reduced, the sunshade curtain is ensured to always maintain a good working state, and the practicability of the device is improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of a synchronous belt drive device for a car side window sunshade proposed in this utility model;

[0019] Figure 2 This is a partial cross-sectional view of a synchronous belt drive device for a car side window sunshade proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the transmission mechanism of a synchronous belt drive device for an automotive side window sunshade proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0022] Figure 5 This is a schematic diagram of the limiting mechanism of the synchronous belt drive device for a car side window sunshade proposed in this utility model.

[0023] In the diagram: 1. Reel; 11. Crossbar; 2. Transmission mechanism; 21. Driving wheel; 22. Driven wheel; 23. Synchronous belt; 231. Slider; 232. Connecting block; 3. Gear motor; 31. Mounting base; 32. Coupling; 4. Guard plate; 5. Tensioning mechanism; 51. Positioning rod; 52. Spring; 53. Limiting plate; 54. Sleeve; 55. Auxiliary wheel; 6. Limiting mechanism; 61. Fixed base; 62. Slide groove; 63. Top plate; 64. Movable block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] This utility model provides a technical solution: such as Figure 1 As shown, a synchronous belt drive device for a car side window sunshade includes a roller 1, on which a sunshade is mounted, and one end of the sunshade is connected to a crossbar 11. One end of the roller 1 is equipped with a geared motor 3 via a mounting base 31, and the output shaft of the geared motor 3 is connected to the roller 1 via a coupling 32.

[0026] like Figure 2As shown, the two ends of the reel 1 are respectively provided with a transmission mechanism 2, the transmission mechanism 2 comprises a driving wheel 21 and a driven wheel 22, and the driving wheel 21 and the driven wheel 22 are drivingly connected through a synchronous belt 23, the synchronous belt 23 is fixedly connected with a sliding block 231, the side wall of the sliding block 231 is fixedly connected with an adapter block 232, and the side away from the sliding block 231 of the adapter block 232 is connected with the cross rod 11. It should be noted that the reel 1 drives the driving wheel 21 to rotate synchronously, so that the driving wheel 21 and the inner protrusions of the synchronous belt 23 are meshed with each other, thereby driving the cross rod 11 to move through the connected sliding block 231, and the up-down reciprocating movement of the sunshade curtain is realized.

[0027] As Figure 3 With Figure 4 As shown, the transmission mechanism 2 is sleeved with a guard plate 4, the inside of the guard plate 4 is provided with a tensioning mechanism 5, and the tensioning mechanism 5 is arranged in the middle of the synchronous belt 23. The tensioning mechanism 5 comprises a positioning rod 51, one end of the positioning rod 51 is fixedly connected with the inner wall of the guard plate 4, the other end of the positioning rod 51 is fixedly connected with a limiting plate 53, the positioning rod 51 is sleeved with a spring 52 and a sleeve 54, one end of the spring 52 is connected with the positioning rod 51, the other end of the spring 52 is connected with the side wall of the sleeve 54, one side of the sleeve 54 is connected with an auxiliary wheel 55 through a key, the position of the auxiliary wheel 55 corresponds to the position of the synchronous belt 23, the side wall of the auxiliary wheel 55 abuts against the synchronous belt 23, and it should be noted that under the elastic action of the spring 52, the spring 52 keeps a contraction state, thereby driving the sleeve 54 sleeved on the positioning rod 51 to move to the side of the synchronous belt 23, ensuring that the auxiliary wheel 55 always abuts against the synchronous belt 23, and by designing a suitable wrap angle between the auxiliary wheel 55 and the synchronous belt 23, the sliding phenomenon in the transmission process of the synchronous belt 23 can be further reduced.

[0028] As Figure 5As shown, the sliding block 231 and the inner wall of the guard plate 4 are provided with a limiting mechanism 6, and the length of the limiting mechanism 6 is less than the distance between the driving wheel 21 and the driven wheel 22, the limiting mechanism 6 comprises a fixed seat 61, the fixed seat 61 is provided with a sliding groove 62, the top of the fixed seat 61 is fixedly connected with a top plate 63, the sliding groove 62 is slidably connected with a movable block 64, and the width of the movable block 64 is equal to the width of the sliding groove 62, the fixed seat 61 is fixedly connected with the inner wall of the guard plate 4, and the end of the movable block 64 extending out of the sliding groove 62 is fixedly connected with the side wall of the sliding block 231, it should be noted that when the synchronous belt 23 drives the sliding block 231 to move, the movable block 64 arranged in the sliding groove 62 can guide the sliding block 231 to ensure the stable operation of the cross rod 11, further, the supporting action of the movable block 64 can improve the bearing capacity of the two ends of the cross rod 11, and in the use process of the sunshade curtain, the interference generated by the passengers playing with the cross rod 11 or leaning against the sunshade curtain on the connection between the cross rod 11 and the synchronous belt 23 is reduced, and further, when the automobile travels on a relatively bumpy road, the adjustment of the synchronous belt 23 by the movable block 64 and the auxiliary wheel 55 can avoid the oscillation of the synchronous belt 23 and reduce the occurrence of abnormal noise in the vehicle.

[0029] The utility model provides a kind of automobile side window sunshade curtain synchronous belt driving device, specific working principle as follows: starting deceleration motor 3, the output shaft of deceleration motor 3 is driven reel 1 synchronous rotation by shaft coupling 32, driving wheel 21 on reel 1 is driven to rotate synchronously by synchronous belt 23 transmission, to make sliding block 231 on synchronous belt 23 move, by the connection of link block 232, the cross rod 11 arranged above reel 1 moves, to drive sunshade curtain retraction on reel 1, the height of the side window is adjusted.

[0030] In the process of adjusting sunshade curtain, spring 52 on positioning rod 51 is driven auxiliary wheel 55 and synchronous belt 23, to reduce the distance between the middle of synchronous belt 23, adjust the length of synchronous belt 23, ensure that driving wheel 21, driven wheel 22 and synchronous belt 23 are in close contact, avoid sliding phenomenon in the process of transmission synchronous belt 23, reduce the position difference between the two ends of upper cross rod 11, ensure the stable operation of sunshade curtain, and when sliding block 231 and link block 232 are moved by synchronous belt 23, movable block 64 connected with sliding block 231 moves in the sliding groove 62 of fixed seat 61, can play a certain guiding role to the two ends of cross rod 11, improve the stability when cross rod 11 moves.

[0031] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A synchronous belt drive device for a car side window sunshade, comprising a roller (1), characterized in that, A sunshade curtain is provided on the roller (1), and a crossbar (11) is connected to one end of the sunshade curtain. A transmission mechanism (2) is installed at both ends of the roller (1). The transmission mechanism (2) includes a driving wheel (21) and a driven wheel (22). The driving wheel (21) and the driven wheel (22) are connected by a synchronous belt (23). A slider (231) is fixedly connected to the synchronous belt (23). A connecting block (232) is fixedly connected to the side wall of the slider (231). The side of the connecting block (232) away from the slider (231) is connected to the crossbar (11). The transmission mechanism (2) is fitted with a guard plate (4), and a tensioning mechanism (5) is provided inside the guard plate (4). The tensioning mechanism (5) is located in the middle of the synchronous belt (23). A limiting mechanism (6) is provided between the slider (231) and the inner wall of the guard plate (4). The length of the limiting mechanism (6) is less than the distance between the driving wheel (21) and the driven wheel (22).

2. The synchronous belt drive device for a car side window sunshade according to claim 1, characterized in that, One end of the reel (1) is equipped with a geared motor (3) via a mounting base (31), and the output shaft of the geared motor (3) is connected to the reel (1) via a coupling (32).

3. The synchronous belt drive device for a car side window sunshade according to claim 1, characterized in that, The tensioning mechanism (5) includes a positioning rod (51), one end of which is fixedly connected to the inner wall of the guard plate (4), and the other end of which is fixedly connected to a limiting plate (53). A spring (52) and a sleeve (54) are fitted on the positioning rod (51), and one end of the spring (52) is connected to the positioning rod (51), and the other end of the spring (52) is connected to the side wall of the sleeve (54).

4. The synchronous belt drive device for a car side window sunshade according to claim 3, characterized in that, An auxiliary wheel (55) is connected to one side of the sleeve (54) by a key. The position of the auxiliary wheel (55) corresponds to the position of the timing belt (23), and the side wall of the auxiliary wheel (55) abuts against the timing belt (23).

5. The synchronous belt drive device for a car side window sunshade according to claim 1, characterized in that, The limiting mechanism (6) includes a fixed seat (61), a sliding groove (62) is provided on the fixed seat (61), and a top plate (63) is fixedly connected to the top of the fixed seat (61). The sliding groove (62) is slidably connected to a movable block (64), and the width of the movable block (64) is equal to the width of the sliding groove (62).

6. The synchronous belt drive device for a car side window sunshade according to claim 5, characterized in that, The fixed seat (61) is fixedly connected to the inner wall of the guard plate (4), and the end of the movable block (64) extending outside the slide groove (62) is fixedly connected to the side wall of the slider (231).

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