Spring pull rope device

Abstract

The utility model provides a spring pull rope device which comprises a base and a top cover, a line wheel and a fixed pulley are arranged between the base and the top cover, a line outlet is formed in the base, the line wheel comprises a spring part and a pull rope part located below the spring part, a volute spiral spring is wound on the spring part, and the fixed pulley is arranged on the volute spiral spring. One end of the volute spiral spring is fixed to the spring part, the other end of the volute spiral spring is fixed to a fixing column located in the center in the wire wheel, a pull rope is wound on the pull rope part, one end of the pull rope is fixed to the pull rope part, the other end of the pull rope sequentially penetrates through the fixed pulley and the wire outlet, one end of the fixing column is fixed to the base, and the other end of the fixing column is fixed to the wire wheel. And the other end is fixed with the top cover. According to the spring pull rope device provided by the utility model, the driving wheel and the driven wheel can be combined into a whole, so that the whole size of the device is smaller, the installation is more convenient, and the transmission efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of curtain components, specifically relating to a spring pull rope device. Background Technology

[0002] Curtains are common household items. They can be used to block privacy, provide shade, and act as partitions, such as in bathrooms, where they can protect privacy and prevent water from splashing out.

[0003] The curtain needs to be opened or closed during use, but it requires constant manual pulling each time it is closed, which is inconvenient for users.

[0004] An existing technology provides a spring-loaded rope device that uses a rope pulled from the outlet of the base to drive a driven wheel, which in turn drives a driving wheel to rotate, causing the spiral spring to deform. When the curtain is retracted, the rope contracts under the deformation force of the spiral spring, driving the driven wheel. This overcomes the problem of needing to manually pull the rope every time the curtain is retracted. However, this solution involves multiple transmission mechanisms, resulting in a large overall size of the telescopic device, which is not conducive to installation within the curtain. Utility Model Content

[0005] The present invention provides a spring-loaded rope device that, based on the prior art, combines the driving wheel and the driven wheel into one unit, resulting in a smaller overall size and higher transmission efficiency, thereby solving the aforementioned technical problems.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] This utility model provides a spring-loaded rope device, including a base and a top cover. A spool and a fixed pulley are provided between the base and the top cover. The base has a cable outlet. The spool includes a spring part and a rope part located below the spring part. A spiral spring is wound on the spring part. One end of the spiral spring is fixed to the spring part, and the other end is fixed to a fixed post located at the center of the spool. A rope is wound on the rope part. One end of the rope is fixed to the rope part, and the other end passes through the fixed pulley and the cable outlet in sequence. One end of the fixed post is fixed to the base, and the other end is fixed to the top cover.

[0008] In some embodiments, a fixing clip is provided between the spool and the fixed pulley, the fixing clip being disposed on the base, and the pull rope on the pull rope portion passing through the fixing clip.

[0009] In some embodiments, the fixing clip is a U-shaped clip, with both ends of the U-shaped clip fixed to the base or fixed to a fixing plate extending from the base.

[0010] In some embodiments, the spring portion is provided with a latch, and one end of the spiral spring is provided with a latching tongue, which extends into the latch.

[0011] In some embodiments, a partition is provided between the spring portion and the pull rope portion.

[0012] The beneficial effects of this application are:

[0013] The spring-loaded rope device provided in this application combines the driving wheel and the driven wheel into one unit based on the above-mentioned prior art, making the overall size of the device smaller, thus making it easier to install and with higher transmission efficiency, thereby solving the above-mentioned technical problems. Attached Figure Description

[0014] Figure 1 This is a front view of the device described in this application;

[0015] Figure 2 This is a top view of the spring section of this application.

[0016] Explanation of reference numerals in the attached figures:

[0017] Base-1; Top cover-2; Thread pulley-3; Spring section-31; Pull rope section-32; Fixed pulley-4; Cable outlet-5; Pull rope-6; Fixing post-7; Fixing clip-8. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the described embodiments are only some, not all, of the embodiments of this application. The specific embodiments described herein are merely for explaining this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the described embodiments of this application are within the scope of protection of this application.

[0020] It should be noted that in this article, relational terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0021] Figure 1 This is a front view of the device described in this application.

[0022] Combination Figure 1A spring-loaded rope device includes a base 1 and a top cover 2. A spool 3 and a fixed pulley 4 are provided between the base 1 and the top cover 2. A cable outlet 5 is provided on the base 1. The spool 3 includes a spring part 31 and a rope part 32 located below the spring part 31. A spiral spring is wound on the spring part 31. One end of the spiral spring is fixed to the spring part 31, and the other end is fixed to a fixed post 7 located at the center inside the spool. A rope 6 is wound on the rope part 32. One end of the rope 6 is fixed to the rope part 32, and the other end passes through the fixed pulley 4 and the cable outlet 5 in sequence. One end of the fixed post 7 is fixed to the base 1, and the other end is fixed to the top cover 2.

[0023] Based on existing technology, this solution combines the driving and driven wheels of the existing patent into a single reel 3. A partition separates a spring section 31 and a pull rope section 32 located below the spring section 31. A spiral spring is wound around the spring section 31, with one end fixed to the spring section 31 and the other end fixed to a fixed post 7 located at the center of the reel. A pull rope 6 is wound around the pull rope section 32, with one end fixed to the pull rope section 32 and the other end passing through a fixed pulley 4 and a cable outlet 5. When the curtain needs to be opened, simply pull the pull rope 6, causing the pull rope section 32 to rotate. Since the spring section 31 and the pull rope section 32 are located on the same reel 3, the spring section 31 also rotates. At this time, the spiral spring is wound and compressed on the fixed post 7, i.e., in a deformed state. Furthermore, the fixed post 7 not only serves to fix the spiral spring but also acts as a fixing component connecting the base 1 and the top cover 2.

[0024] Combination Figure 2 The top view of the spring part of this application shows that in some embodiments, a fixing clip 8 is provided between the pulley 3 and the fixed pulley 4. The fixing clip 8 is set on the base 1, and the pull rope 6 on the pull rope part 31 passes through the fixing clip 8.

[0025] In some embodiments, the fixing card 8 is a U-shaped card, with both ends of the U-shaped card fixed to the base 1 or fixed to a fixing plate extending from the base 1.

[0026] In some embodiments, the spring portion 31 is provided with a latch, and one end of the spiral spring is provided with a latch tongue, which extends into the latch.

[0027] In some embodiments, a partition is provided between the spring portion 31 and the pull rope portion 32.

[0028] Specifically, the partition can prevent entanglement and interference between the pull rope 6 wound on the pull rope part 32 and the spiral spring wound on the spring part 31.

[0029] The specific working principle of the curtain telescopic device of this application is as follows: When it is necessary to open the curtain, simply pull the pull cord 6, thereby driving the pull cord part 32 to rotate. Since the spring part 31 and the pull cord part 32 are located on the same pulley 3, the spring part 31 will also rotate. At this time, the spiral spring will be wound and compressed on the fixed column 7, that is, in a deformed state. Therefore, when it is necessary to restore the curtain, the spring part 31 can be rotated by the contraction of the spiral spring. The pull cord part 32 will also rotate with the spring part 31, thereby driving the pull cord 6 to rewind onto the pull cord part 32.

[0030] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

[0031] Those skilled in the art will understand that the descriptions of the various embodiments have different focuses, and for parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0032] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application. All such modifications and variations fall within the scope defined by the appended claims. The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A spring cord device, characterized in that The device includes a base and a top cover. A spool and a fixed pulley are provided between the base and the top cover. The base has a cable outlet. The spool includes a spring part and a pull rope part located below the spring part. A spiral spring is wound around the spring part. One end of the spiral spring is fixed to the spring part, and the other end is fixed to a fixed post located at the center of the spool. A pull rope is wound around the pull rope part. One end of the pull rope is fixed to the pull rope part, and the other end passes through the fixed pulley and the cable outlet in sequence. One end of the fixed post is fixed to the base, and the other end is fixed to the top cover.

2. A spring cord device according to claim 1, wherein A fixing clip is provided between the reel and the fixed pulley. The fixing clip is set on the base, and the pull rope on the pull rope part passes through the fixing clip.

3. A spring cord device according to claim 2, wherein The fixing clip is a U-shaped clip, with both ends of the U-shaped clip fixed to the base or to a fixing plate extending from the base.

4. A spring cord device according to claim 3, wherein The spring part is provided with a latch, and one end of the spiral spring is provided with a latch, which extends into the latch.

5. A spring cord device according to claim 1, wherein A partition is provided between the spring part and the pull rope part.

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