Scroll structure of sunshade curtain and sunshade curtain

Abstract

The utility model provides a reel structure of a sunshade curtain and the sunshade curtain. The reel structure of the sunshade curtain is applied to the sunshade curtain and comprises a reel body and further comprises a winding mechanism used for driving the reel body to rotate and comprising a reel and a pull rope wound on the reel; the reel is provided with a track groove used for containing the pull rope. And a clamping structure used for preventing the pull rope from being separated from the track groove is connected to the reel on the side of the track groove. The utility model can provide a solution of the reel structure of the sunshade curtain, which can ensure a safe distance and does not influence the production takt.

Description

TECHNICAL FIELD

[0001] The utility model relates to sunshade curtain winding technology field especially a sunshade curtain's reel structure and sunshade curtain. BACKGROUND

[0002] In the automotive interior technical field, the electric sunshade curtain is an important part of improving the comfort in the car. At present, the electric sunshade curtain is usually in the state of curtain cloth winding when it is shipped, at this time, the pull line of direct drive sunshade curtain is wound on the winding wheel. However, in the process of workers in the main machine factory assembly line carrying the direct drive sunshade curtain assembly, there is a situation that the pull line is accidentally hooked by the fingers of the workers due to careless operation, causing the pull line to come out of the spiral groove of the winding wheel. Once the pull line comes out, the pull line will not return to the track groove when the electric sunshade curtain runs, thereby causing the entire electric sunshade curtain to run out of function.

[0003] To solve the above-mentioned pull line coming out problem, there are the following two prevention methods in the existing design:

[0004] First, a retaining wall is added to the rear beam. This method can block the pull line to a certain extent, but it has obvious defects. That is, it will cause the safety distance between the sunshade curtain and the roof panel in the Z direction to not meet the requirements, and there is a risk of collision between the sunshade curtain and the roof panel, affecting the safety and reliability of the automotive interior.

[0005] Second, a line pressing structure is added. This method attempts to fix the pull line through the line pressing structure, but in actual application, it has caused new problems. Due to the addition of the line pressing structure, the installation of the pull line becomes difficult during the production process of the sunshade curtain assembly, which directly affects the production rhythm, reduces the production efficiency, and increases the production cost.

[0006] It can be seen that the existing technology for preventing the pull line of the direct drive sunshade curtain from coming out either has safety hazards or affects production efficiency. A new solution is needed that can ensure a safe distance without affecting the production rhythm. INVENTION CONTENTS

[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to disclose a sunshade curtain reel structure and a sunshade curtain to improve the problems mentioned in the background technology.

[0008] To achieve the above-mentioned purpose and other related purposes, the utility model provides a sunshade curtain reel structure applied to a sunshade curtain, comprising a reel body, further comprising:

[0009] A winding mechanism is used to drive the reel body to rotate, which comprises a winding wheel and a pull rope wound on the winding wheel.

[0010] The winding wheel is provided with a track groove for accommodating the pull rope.

[0011] The winding wheel on the side of the track groove is connected with a clamping structure for preventing the pull rope from being separated from the track groove.

[0012] In one scheme of the utility model, a tapered connecting surface coaxially arranged with the reel main body is arranged on the winding wheel, and the track groove is arranged on the tapered connecting surface.

[0013] In one scheme of the utility model, the track groove is spirally distributed along the tapered connecting surface.

[0014] In one scheme of the utility model, the clamping structure is arranged at one end of the winding wheel with a large diameter.

[0015] In one scheme of the utility model, the clamping structure comprises:

[0016] A connecting portion connected with the winding wheel body; and

[0017] A clamping portion arranged on the side of the connecting portion and close to one side of the track groove, and a placing groove for accommodating the pull rope is arranged on the opposite surface of the clamping portion and the track groove.

[0018] In one scheme of the utility model, the placing groove forms a blocking portion on one side of the clamping portion.

[0019] A gap is reserved between the blocking portion and the winding wheel body.

[0020] In one scheme of the utility model, a slot is arranged on the winding wheel on one side of the track groove at the connecting position of the clamping structure, and the blocking portion is located in the slot.

[0021] In one scheme of the utility model, the clamping structure and the winding wheel body are integrally formed.

[0022] In one scheme of the utility model, the clamping structure and the winding wheel body are detachably fixedly connected.

[0023] The application also provides a sunshade curtain comprising the reel structure of the sunshade curtain.

[0024] The application has the following beneficial effects:

[0025] 1. The winding wheel is arranged in the middle of the pull rope to realize the rotation of the reel body by pure mechanical transmission, and the structure is compact and the transmission efficiency is high.

[0026] 2. The track groove and the clamping structure form a composite anti-dropping mechanism of "track constraint + physical limiting", the pull rope is always limited in the preset path during the winding process, the transmission failure caused by the pull rope jumping out is avoided, and the composite anti-dropping mechanism is especially suitable for high-frequency use or high-load working conditions.

[0027] 3. By the cooperation of the conical connecting surface of the winding wheel and the spiral track groove, the axial component force generated by the diameter change of the conical surface is used to promote the pull rope to be uniformly arranged along the spiral track, the stacking or winding confusion is avoided, the curtain body is ensured to be flat and wrinkle-free after winding, and the use quality and the aesthetic degree of the sunshade curtain are improved.

[0028] 4. The blocking part forms a vertical constraint for the force direction of the pull rope, for example, the radial disengagement force of the pull rope is blocked in real time at the end of winding, the guiding effect of the track groove is matched, the stability of the movement track of the pull rope under high-load working conditions is ensured, and the reliability of the structure under extreme working conditions is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] Figure 1 It is a whole structure schematic view of a sunshade curtain of the present application.

[0031] Figure 2 It is Figure 1 It is an enlarged winding structure schematic view of the position C in the figure.

[0032] Figure 3 It is Figure 2 It is a winding structure schematic view of the position A-A in the figure.

[0033] Figure 4 It is a whole structure schematic view of a winding structure of the present application.

[0034] Figure 5 It is a partial enlarged structure schematic view of a winding structure of the present application.

[0035] Figure 6 It is a partial enlarged structure schematic view of a winding structure of the present application.

[0036] In the figure:

[0037] 10. Spool main body

[0038] 100. Winding mechanism

[0039] 110, winding wheel; 111, conical connecting surface; 1101, track groove;

[0040] 120, pull rope;

[0041] 130, clamping structure; 131, connecting part; 132, clamping part; 1320, placing groove; 1321, blocking part;

[0042] 200, gap;

[0043] 300, notch. DETAILED DESCRIPTION

[0044] The implementation modes of the present application are described below through specific examples. Other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present specification. The present application can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in the present specification based on different viewpoints and applications without departing from the spirit of the present application.

[0045] Please refer to Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to understand and read the disclosure of the present specification by those skilled in the art, and do not limit the implementation conditions of the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0046] Please refer to Figures 1 to 6 The present application provides a winding shaft structure applied to a sunshade curtain, which comprises a winding shaft body 10 and a winding mechanism 100. The curtain body is wound on the winding shaft body 10, and the winding mechanism 100 realizes the winding of the curtain body by driving the rotation of the winding shaft body 10. Specifically, the winding mechanism 100 comprises a winding wheel 110 and a pull rope 120. The middle part of the pull rope 120 is wound around the winding wheel 110, and the two ends are connected to the driving mechanism of the winding pull rope 120. The winding pull rope 120 drives the rotation of the winding wheel 110 through the mechanism.

[0047] Further, the winding wheel 110 is provided with a track groove 1101 for accommodating the pull rope 120, and the winding wheel 110 on the side of the track groove 1101 is connected with a clamping structure 130 for preventing the pull rope 120 from being separated from the track groove 1101. The track groove 1101 and the clamping structure 130 on the winding wheel 110 cooperate to effectively limit the movement track of the pull rope 120, prevent the pull rope 120 from being separated from the track groove 1101 during the winding process, avoid the transmission failure caused by the misalignment of the pull rope 120, and ensure the stability and continuity of the winding action of the sunshade curtain.

[0048] Meanwhile, the guiding effect of the track groove 1101 on the pull rope 120 can make the pull rope 120 arranged neatly on the winding wheel 110, reduce the winding disorder or jamming phenomenon during winding, and further ensure the uniform winding of the curtain body and improve the use experience and service life of the sunshade curtain.

[0049] It should be noted that the winding mechanism 100 can be designed in a modular manner to adapt to sunshade curtains of different specifications, facilitate adjustment of parameters according to actual needs, and further enhance the universality of the reel structure.

[0050] In an embodiment, the winding wheel 110 is provided with a tapered connecting surface 111 coaxially arranged on the reel body 10, and the track groove 1101 is arranged on the tapered connecting surface 111. The track groove 1101 is spirally distributed on the tapered connecting surface 111 of the winding wheel 110.

[0051] It can be understood that the tapered connecting surface 111 of the winding wheel 110 is coaxially arranged with the reel body 10, so that when the pull rope 120 is wound in the spiral track groove 1101, due to the change of the diameter of the tapered surface from large to small, the pull rope 120 generates a component force in the axial direction, which promotes the pull rope 120 to be uniformly arranged along the spiral track of the tapered surface, avoids the phenomenon of stacking and winding disorder during winding, and ensures the flatness and orderliness of the curtain body winding.

[0052] Meanwhile, the track groove 1101 is spirally distributed on the tapered connecting surface 111 to provide a clear movement trajectory guide for the pull rope 120. Compared with a linear track, the spiral groove can make the pull rope 120 gradually wound along the spiral path when the winding wheel 110 rotates, reduce the radial deviation of the pull rope 120 during transmission, further improve the transmission stability between the pull rope 120 and the winding wheel 110, and avoid winding jamming caused by misalignment of the pull rope 120.

[0053] It should be noted that the clamping structure 130 is arranged at the large-diameter end of the winding wheel 110. Therefore, under the action of the clamping structure 130, the pull rope 120 is not easy to be separated from the track groove 1101 at the large-diameter end of the winding wheel 110. At the same time, since the circumferential length of the large-diameter end is longer, the contact range of the pull rope 120 with the track groove 1101 is larger, and the constraint area of the clamping structure 130 on the pull rope 120 is also increased. When the pull rope 120 is subjected to tension during winding, the clamping structure 130 at the large-diameter end can limit the pull rope 120 from separating with greater contact force, which is particularly suitable for scenes where the pull rope 120 has greater tension, and significantly improves the reliability of the anti-separation design.

[0054] In an embodiment, the clamping structure 130 includes a connecting portion 131 connected to the body of the winding wheel 110, and a clamping portion 132 arranged on the side of the connecting portion 131 and close to one side of the track groove 1101, and the clamping portion 132 is provided with a placing groove 1320 on the opposite surface of the track groove 1101 for accommodating the pull rope 120.

[0055] Specifically, the placing groove 1320 allows the pull rope 120 to slide freely along the track groove 1101, ensuring smooth transmission of the pull rope 120 during winding. At the same time, the blocking portion 1321 is formed on the side of the clamping portion 132 to physically limit the pull rope 120, so that the blocking portion 1321 can block the pull rope 120 from escaping from the track groove 1101 in real time when the pull rope 120 is subjected to radial tension, avoiding winding failure caused by the pull rope 120 jumping out, and realizing the function cooperation of "dynamic sliding" and "static anti-escape".

[0056] It can be understood that the placing groove 1320 corresponds to one track of the track groove 1101, so that the pull rope 120 can slide freely in the track groove 1101. The shape of the placing groove 1320 matches the track groove 1101, which can reduce the radial deviation of the pull rope 120 during winding, so that the pull rope 120 always moves in the preset track, and the pull rope 120 forms a double constraint of "track + clamping groove" in the groove.

[0057] At the same time, the placing groove 1320 forms a blocking portion 1321 on the side of the clamping portion 132, which can prevent the pull rope 120 from escaping from the clamping portion 132. The blocking portion 1321 is arranged on the side of the clamping portion 132 close to the track groove 1101, and its geometric shape can form directional blocking according to the stress direction of the pull rope 120. For example, when the tension of the pull rope 120 increases at the end of winding, the blocking portion 1321 can limit the movement of the pull rope 120 with a constraint force perpendicular to the escape direction of the pull rope 120, which is especially suitable for scenes that need to be wound frequently or the curtain weight is large, and improves the stability of the structure under high load working conditions.

[0058] In an embodiment, in order to conveniently connect the pull rope 120 to the winding wheel 110, a gap 200 is further included between the blocking portion 1321 and the body of the winding wheel 110, and the pull rope 120 can enter the track groove 1101 through the gap 200.

[0059] Further, on the winding wheel 110 at the connecting position of the clamping structure 130, a notch 300 is arranged on the side of the track groove 1101 of the winding wheel 110, and the blocking portion 1321 is located in the notch 300. The end of the notch 300 and the end surface of the blocking portion 1321 are arranged in a spaced manner, so as to facilitate the pull rope 120 to be smoothly clamped into the winding wheel 110.

[0060] The gap 200 between the blocking part 1321 and the body of the winding wheel 110, the gap 300 between the blocking part 1321 and the notch, and the spacing structure of the end surface of the blocking part 1321 provide a clear path for the pull rope 120 to pass in. When installed, the pull rope 120 can directly slide into the track groove 1101 from the gap 200, and then be clamped into the track groove 1101 through the gap between the gap 300 and the blocking part 1321, without the need for additional tools or complex operations, greatly simplifying the assembly process, and being particularly suitable for rapid assembly in industrial mass production.

[0061] Further, the positioning function of the gap 300 and the blocking part 1321 can provide physical guidance for the installation of the pull rope 120. When the pull rope 120 is passed in, it can naturally fall into the track groove 1101 along the edge of the gap 300, reducing the dislocation or entanglement of the pull rope 120 caused by human operation during installation, ensuring that the pull rope 120 is accurately embedded in the preset track, and reducing assembly errors.

[0062] It should be noted that although the gap 200 and the gap 300 are provided to facilitate the passing in, the blocking part 1321 still maintains the restraining ability of the pull rope 120. After installation is completed, the blocking part 1321 cooperates with the track groove 1101 to form a closed limiting structure, and the pull rope 120 is blocked by the blocking part 1321 and cannot be separated during the winding process.

[0063] In an embodiment, the clamping structure 130 is integrally formed between the body of the winding wheel 110. It can be understood that the integrally formed structure can eliminate the joints and connecting parts between the clamping structure 130 and the body of the winding wheel 110, avoiding stress concentration or fatigue fracture problems caused by welding, bolt connection and other processes. During the winding process of the pull rope 120, the clamping structure 130 and the winding wheel 110 synchronously bear the tension, without the risk of relative displacement, and are particularly suitable for high-load winding scenarios, significantly improving the durability of the overall structure of the sunshade curtain.

[0064] In an embodiment, the clamping structure 130 is detachably fixedly connected between the body of the winding wheel 110. It can be understood that the detachable connection allows the clamping structure 130 and the body of the winding wheel 110 to be independently disassembled, so that when the clamping part 132 is damaged due to long-term friction and wear, pull rope 120 jamming and other problems, the winding wheel 110 does not need to be replaced as a whole, and only needs to be disassembled and replaced to complete the maintenance.

[0065] Based on the above embodiments, the application also provides a sunshade curtain applied to a vehicle. The sunshade curtain provided by the application includes the reel structure of the sunshade curtain provided by any of the above embodiments.

[0066] In summary, the application provides a roller structure of a sunshade curtain and a sunshade curtain, the middle part of the pull rope 120 is wound around the winding wheel 110, the rotation of the roller body 10 is realized by pure mechanical transmission, the structure is compact and the transmission efficiency is high. Secondly, the track groove 1101 and the clamping structure 130 form a composite anti-disengagement mechanism of "track constraint + physical limiting", the pull rope 120 is always limited in the preset path during the winding process, and the transmission failure caused by the jump of the pull rope 120 is eliminated, which is especially suitable for high-frequency use or high-load working conditions.

[0067] Through the cooperation of the conical connecting surface 111 of the winding wheel 110 and the spiral track groove 1101, the axial component force generated by the diameter change of the conical surface is used to uniformly arrange the pull rope 120 along the spiral track, avoid stacking or winding confusion, ensure that the curtain body is flat and wrinkle-free after winding, and improve the use quality and aesthetics of the sunshade curtain.

[0068] In addition, the blocking part 1321 forms a vertical constraint to the stress direction of the pull rope 120, for example, the radial disengagement force of the pull rope 120 is blocked in real time at the end of winding, and the guiding effect of the track groove 1101 is matched, to ensure the stability of the movement track of the pull rope 120 under high-load working conditions, and improve the reliability of the structure under extreme working conditions.

[0069] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A roller structure of a sunshade curtain applied to a sunshade curtain, comprising a roller main body (10), characterized in that, Also included are: A winding mechanism (100) for driving the rotation of the reel body (10), which includes a winding wheel (110) and a pull rope (120) wound around the winding wheel (110); The winding wheel (110) is provided with a track groove (1101) for accommodating the pull rope (120); and The winding wheel (110) on the side of the track groove (1101) is connected with a clamping structure (130) for preventing the pull rope (120) from being separated from the track groove (1101).

2. A roller assembly for a sunshade according to claim 1, wherein The winding wheel (110) is provided with a tapered connecting surface (111) coaxially arranged with the reel body (10), and the track groove (1101) is arranged on the tapered connecting surface (111).

3. A roller assembly for a sunshade according to claim 2, wherein, The track groove (1101) is spirally distributed along the tapered connecting surface (111).

4. The roller assembly of claim 2, wherein the roller assembly further comprises a spring assembly disposed between the roller tube and the roller tube support. The clamping structure (130) is arranged at one end of the winding wheel (110) with a large diameter.

5. The roller assembly of claim 4, wherein the roller assembly further comprises a spring disposed between the roller and the roller support. 5 The clamping structure (130) comprises: A connecting part (131) connected to the body of the winding wheel (110); and A clamping part (132) arranged on the side of the connecting part (131) and close to one side of the track groove (1101), and the clamping part (132) is provided with a placement groove (1320) on the opposite surface of the track groove (1101) for accommodating the pull rope (120).

6. The roller assembly of claim 5, wherein the roller assembly further comprises a spring disposed between the roller and the roller support. The placement groove (1320) forms a blocking part (1321) on one side of the clamping part (132); A gap (200) is reserved between the blocking part (1321) and the body of the winding wheel (110).

7. A roller assembly for a sunshade according to claim 6, wherein On the winding wheel (110) at the connecting position of the clamping structure (130), a slot (300) is arranged on the winding wheel (110) on one side of the track groove (1101), and the blocking part (1321) is located in the slot (300).

8. The roller assembly of claim 1, wherein, The clamping structure (130) and the body of the winding wheel (110) are integrally formed.

9. The roller assembly of claim 1, wherein, The clamping structure (130) and the body of the winding wheel (110) are detachably fixedly connected.

10. A shade, characterized by A reel structure of a sunshade curtain comprising any one of the above claims 1 to 9.

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