Auxiliary curtain rolling device of sunshade curtain

Abstract

The utility model relates to the technical field of sunshade curtains, and discloses an auxiliary curtain rolling device of a sunshade curtain, the sunshade curtain comprises a frame, the surface of the frame is provided with two parallel guide rails, the two ends between the two guide rails are both rotatably provided with rolling shafts, the rolling shafts are sleeved with rolling curtain cloth capable of being rolled, and the rolling curtain cloth is provided with a roller. Two push-pull rods used for pulling the roller shutter cloth to unfold are installed on the guide rail in a sliding mode, the auxiliary roller shutter device is installed on the push-pull rods, the auxiliary roller shutter device comprises a tension spring, a pull rope and a tension spring cover, the tension spring is correspondingly embedded in the tension spring cover, the tension spring cover is fixedly installed on the push-pull rods, and the pull rope is connected with the tension spring cover. The two ends of the tension spring are in transmission connection with the positioning guide wheels at the two ends of the winding shaft through pull ropes, the winding shaft is integrally driven to rotate through the tension spring, auxiliary positioning and recycling of the roller shutter cloth are achieved, winding mechanisms at the two ends of the winding shaft are reduced, and therefore the number of parts and installation abrasion are reduced, and abnormal noise generated by torsion springs in the winding mechanisms when the sunshade curtain is opened and closed is avoided. And the service life of the sunshade curtain is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of sunshade curtains, in particular to an auxiliary rolling curtain device of a sunshade curtain. Background Art

[0002] A sunshade is a sunshade device built into a car window or sunroof. It can be unfolded or folded by electric control or manual operation. It is installed inside the vehicle for easy use at any time.

[0003] After searching, for example, Chinese patent CN219277215U discloses a roller blind driving mechanism for a sunshade.

[0004] , including a rolling curtain with an unfolded state and a rolled-up state, two guide rails extending along the unfolding direction of the rolling curtain and arranged at intervals; connecting ends are fixedly installed on the two guide rails respectively, and a rolling mechanism for rolling up the rolling curtain is installed on the two connecting ends, and a push-pull rod for pulling the rolling curtain to unfold is slidably installed on the two guide rails; a reinforcing fixing strip located above the rolling mechanism is fixed on the two connecting ends; a first guide groove and a second guide groove are provided on the two guide rails, and sliding ends sliding in the first guide groove are fixedly installed at both ends of the push-pull rod, and the two side edges of the rolling curtain are limited to slide in the second guide groove; guide wheels are rotatably installed on the two guide rails, and pull ropes passing through the guide wheels on the corresponding sides and connected to the rolling mechanism are bolted to the two sliding ends.

[0005] The winding mechanism of the roller blind drive mechanism disclosed in the above patent is arranged at the two connecting ends of the winding shaft, and there are many assembled structural parts, the product cost is high and the assembly efficiency is low, and it causes more wear and tear on the assembly gaps of multiple parts, avoiding the torsion spring in the winding mechanism from making abnormal noise when opening and closing the sunshade, reducing the service life of the sunshade and making replacement and maintenance troublesome. Therefore, we need to propose an auxiliary roller blind device for the sunshade. Utility Model Content

[0006] The purpose of the utility model is to provide an auxiliary rolling curtain device for a sunshade curtain. By arranging a rolling curtain auxiliary device on a push-pull rod, the winding mechanisms at both ends of the winding shaft can be reduced, thereby reducing the number of assembled parts and reducing the degree of installation wear of the parts, thereby extending the service life of the sunshade curtain, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary rolling curtain device for a sunshade curtain, the sunshade curtain comprises a frame, two parallel guide rails are installed on the surface of the frame, and winding shafts are rotatably installed at both ends between the two guide rails, and a retractable rolling curtain cloth is mounted on the winding shaft, and two push-pull rods for pulling the rolling curtain cloth to unfold are slidably installed on the guide rails, and the auxiliary rolling curtain device is installed on the push-pull rod. The auxiliary rolling curtain device comprises a tension spring, a pull rope and a tension spring cover, the tension spring is correspondingly nested in the tension spring cover, and the tension spring cover is fixedly installed on the push-pull rod, and the two ends of the tension spring are connected to the positioning guide wheels at both ends of the winding shaft through a pull rope transmission.

[0008] Preferably, a first guide wheel is rotatably mounted on the guide rail, and second guide wheels are rotatably mounted on both ends of the push-pull rod. Both ends of the tension spring are extended through pull ropes to bypass the first guide wheel and the second guide wheel and then connected to the positioning guide wheels at both ends of the winding shaft.

[0009] Preferably, a groove for accommodating the tension spring is provided in the middle of the tension spring cover, and openings for passing the pull rope are provided at both ends of the groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model installs the auxiliary rolling curtain device on the push-pull rod and drives the winding shaft to rotate through the spring force of the tension spring itself, thereby realizing the auxiliary positioning and recovery of the rolling curtain cloth. The overall structure reduces the winding mechanism at both ends of the winding shaft, thereby reducing the number of assembled parts, avoiding the torsion spring in the winding mechanism to produce abnormal noise when opening and closing the sunshade, and reducing the degree of installation wear of the parts, thereby extending the service life of the sunshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of the utility model in a closed state of the rolling shutter;

[0013] Figure 2 For this utility model Figure 1 Enlarged view of part A in the middle;

[0014] Figure 3 It is a structural schematic diagram of the auxiliary rolling curtain device of the utility model in the closed state of the rolling curtain;

[0015] Figure 4 It is a structural schematic diagram of the auxiliary rolling curtain device of the utility model in the open state of the rolling curtain;

[0016] Figure 5 It is a structural schematic diagram of the tension spring cover of the utility model.

[0017] In the figure: 1, frame; 2, guide rail; 21, first guide wheel; 3, reel; 31, positioning guide wheel; 4, rolling curtain cloth; 5, push-pull rod; 51, second guide wheel; 6, auxiliary rolling curtain device; 61, tension spring; 62, pull rope; 63, tension spring cover; 631, groove; 632, through-hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides a technical solution: an auxiliary rolling curtain device for a sunshade curtain, the sunshade curtain comprises a frame 1, two parallel guide rails 2 are installed on the surface of the frame 1, and a winding shaft 3 is rotatably installed at both ends between the two guide rails 2, and a retractable rolling curtain cloth 4 is mounted on the winding shaft 3, and two push-pull rods 5 for pulling the rolling curtain cloth 4 to unfold are slidably installed on the guide rails 2, the auxiliary rolling curtain device 6 is installed on the push-pull rod 5, and the auxiliary rolling curtain device 6 comprises a tension spring 61, a pull rope 62 and a tension spring cover 63, the tension spring 61 is correspondingly nested in the tension spring cover 63, and the tension spring cover 63 is fixedly installed on the push-pull rod 5, and the two ends of the tension spring 61 are connected to the positioning guide wheels 31 at both ends of the winding shaft 3 through the pull rope 62.

[0020] A first guide wheel 21 is rotatably mounted on the guide rail 2, and second guide wheels 51 are rotatably mounted at both ends of the push-pull rod 5. Both ends of the tension spring 61 are extended through a pull rope 62 to bypass the first guide wheel 21 and the second guide wheel 51 and are connected to the positioning guide wheels 31 at both ends of the winding shaft 3.

[0021] A groove 631 for accommodating the tension spring is formed in the middle of the tension spring cover 63 , and openings 632 for passing the pull rope 62 are formed at both ends of the groove 631 .

[0022] Working principle: To close the sunshade, push the push-pull rod 5 forward in both directions manually or electrically, and the rolling curtain 4 overcomes the spring force of the tension spring 61 in the auxiliary rolling curtain device 6, and is positioned and guided by the first guide wheel 21, the second guide wheel 51 and the positioning guide wheel 31 to assist in extending and closing the sunshade through the push-pull rod 5. To open the sunshade, the rolling curtain 4 can be rewound by the corresponding driving reel 3 under the action of the spring force of the tension spring 61 by disengaging the push-pull rod 5, so as to realize the rewinding and storage of the rolling curtain 4 and realize the opening operation of the sunshade. The auxiliary rolling curtain device adopted in the overall structure is mainly used for auxiliary positioning and guiding of the sunshade and auxiliary opening, which saves the number of assembled components, reduces the degree of installation wear of components, and prolongs the service life of the sunshade.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary rolling curtain device for a sunshade curtain, the sunshade curtain comprising a frame (1), two parallel guide rails (2) being mounted on the surface of the frame (1), a reeling shaft (3) being rotatably mounted at both ends between the two guide rails (2), a retractable rolling curtain cloth (4) being sleeved on the reeling shaft (3), two push-pull rods (5) for pulling the rolling curtain cloth (4) to unfold being slidably mounted on the guide rails (2), Features: The auxiliary rolling curtain device (6) is mounted on the push-pull rod (5), and comprises a tension spring (61), a pull rope (62) and a tension spring cover (63). The tension spring (61) is correspondingly nested inside the tension spring cover (63), and the tension spring cover (63) is fixedly mounted on the push-pull rod (5). The two ends of the tension spring (61) are connected to the positioning guide wheels (31) at the two ends of the winding shaft (3) through the pull rope (62).

2. The auxiliary rolling curtain device for a sunshade curtain according to claim 1, Features: A first guide wheel (21) is rotatably mounted on the guide rail (2), and second guide wheels (51) are rotatably mounted on both ends of the push-pull rod (5). The two ends of the tension spring (61) are connected to the positioning guide wheels (31) at both ends of the winding shaft (3) after being extended and extended by correspondingly bypassing the first guide wheel (21) and the second guide wheel (51) through a pull rope (62).

3. The auxiliary rolling curtain device for a sunshade curtain according to claim 2, Features: A groove (631) for accommodating the tension spring is provided in the middle of the tension spring cover (63), and openings (632) for passing the pull rope (62) are provided at both ends of the groove (631).

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