A take-up device

Abstract

The application discloses a take-up device and belongs to the field of daily necessities. The take-up device comprises a fixing part, a winding wheel, a knob, a connecting part, a limiting assembly and a fastener. The fixing part is provided with a check part. The winding wheel is provided with a rotating part at one end away from the base. The knob is provided with a first clamping part and a linkage part matched with the check part on the side facing the fixing part. The connecting part is connected with the winding wheel and is provided with a second clamping part matched with the first clamping part on the outer periphery. The limiting assembly comprises a guide part and an elastic part. The guide part is provided with a matching part matched with the rotating part at one end close to the base. A plurality of guide grooves are defined along the inner wall of the largest hole of the stepped hole. Guide clamping structures are formed between the adjacent two guide grooves. The elastic part is abutted between the fixing part and the knob. The guide part is movably arranged in the stepped hole and is provided with a clamping sliding block along the periphery of the guide part. The take-up device can realize the tightness of the wire rope by reciprocating pressing the knob, and the operation is simple and convenient.

Description

Technical Field

[0001] This application relates to the field of cable take-up devices, and more particularly to a cable take-up device. Background Technology

[0002] A cord reel is a device that allows for the reeling in and unreeling of cords. It is generally used in shoes, hats, and other items where the cord needs to be tightened or loosened. For example, when used on shoes, it is usually installed on the tongue or side of the shoe, and the shoelaces pass through the reel. The reel's cord reeling function tightens and loosens the shoelaces, thus allowing you to tie or loosen them.

[0003] Existing take-up devices typically include a winding reel, a knob connected to the reel's drive mechanism, a limiting device positioned between the reel and the knob, and a check disc. During use, the knob needs to be pulled out to release both the reel and the check disc from the knob. This makes it difficult for children, the elderly, or operators wearing gloves to pull out the rotating mechanism, resulting in difficult operation and inconvenience. Summary of the Invention

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a take-up device.

[0005] To address the aforementioned technical problems, this application provides: A cable retractor, comprising: Base; A fastener is connected to the base. The fastener has a through cavity with openings at both ends. An elastic arm is provided at the end of the fastener away from the base. A check valve is provided on the circumferential edge of the elastic arm. A winding reel for winding wire is rotatably disposed within the cavity about an axial direction, and a actuating part is provided at the end of the winding reel away from the base; The knob has a linkage part and a first locking part on the side facing the fixing member, and the linkage part cooperates with the anti-return part; A connector is connected to the end of the winding reel away from the base, and a second snap-fit ​​is provided on the outer periphery of the connector to cooperate with the first snap-fit; A limiting component includes a guide and an elastic element. The connector has a stepped hole on its inner circumference. The guide has a mating part that cooperates with the actuating part at one end near the base. Multiple guide grooves are defined circumferentially along the inner wall of the stepped hole with the largest diameter. A guide snap-fit ​​structure is formed between two adjacent guide grooves. The elastic element abuts between the fixing element and the knob. The guide is movably inserted through the stepped hole. A snap-fit ​​slider is provided circumferentially along the guide. Fastener, which passes through the guide and connects to the knob; When the knob is pressed, the locking slider slides out of the guide groove, and the mating part abuts against the actuating part, so that the guide member rotates in the stepped hole under the action of the actuating part, thereby locking the locking slider with the guide locking structure, and locking the first locking member with the second locking member; when the knob is pressed again, the guide member rotates in the stepped hole under the action of the actuating part, thereby sliding the locking slider from the locking structure into the guide groove, and separating the first locking member from the second locking member.

[0006] In some embodiments of this application, a plurality of helical teeth are spaced apart along the circumference of the guide member, the plurality of helical teeth forming the snap-fit ​​slider, the actuating part having a first toothed edge, and the mating part having a second toothed edge that mates with the first toothed edge.

[0007] In some embodiments of this application, the guide snap-fit ​​structure is a stepped structure, and the stepped structure includes a first stepped surface and a second stepped surface, the first stepped surface and the second stepped surface are inclined surfaces, and are in the same direction of inclination as the helical teeth.

[0008] In some embodiments of this application, the first toothed edge is integrally injection molded with the winding reel.

[0009] In some embodiments of this application, the end of the winding reel away from the base is provided with a first engaging portion, and the end of the connector near the base is provided with a second engaging portion that engages with the first engaging portion.

[0010] In some embodiments of this application, the fastener is provided with a third snap-fit ​​portion at one end near the base, and the base is provided with a fourth snap-fit ​​portion that snaps into the third snap-fit ​​portion.

[0011] In some embodiments of this application, the elastic arm and the fixing member are integrally injection molded.

[0012] In some embodiments of this application, the knob has a protruding mounting post on the side near the base, the mounting post has a first mounting hole, the guide has a second mounting hole, and the fastener is sequentially inserted into the second mounting hole and the first mounting hole to securely connect the guide to the knob.

[0013] In some embodiments of this application, the knob is provided with a first limiting part in the inner circumferential direction at one end near the base, and the fixing member is provided with a second limiting part in the outer circumferential direction at one end away from the base, which cooperates with the first limiting part.

[0014] In some embodiments of this application, the winding reel includes a winding shaft and discs disposed at both ends of the winding shaft. The diameter of the discs is larger than the diameter of the winding shaft. The winding shaft has a first threading hole and a second threading hole respectively opened along a direction perpendicular to the axis of the winding shaft. The fixing member has a first clearance hole and a second clearance hole. The first clearance hole is disposed corresponding to the first threading hole, and the second clearance hole is disposed corresponding to the second threading hole.

[0015] The embodiments of this application have the following advantages: This application discloses a take-up device, which includes a base, a fixing member, a winding reel for winding, a knob, a connector, a limiting assembly, and fasteners. The limiting assembly includes a guide member and an elastic member. The fixing member is connected to the base and has a through cavity with openings at both ends. An elastic arm is provided at the end of the fixing member away from the base, and a check valve is provided on the circumferential edge of the elastic arm. The winding reel is rotatably disposed in the through cavity, and a toggle part is provided at the end of the winding reel away from the base. A first locking member and a linkage part cooperating with the check valve are provided on the side of the knob facing the fixing member. The connector... The connector is connected to the end of the winding reel away from the base. A second locking member is provided on the outer periphery of the connector to cooperate with the first locking member. A stepped hole is opened on the inner periphery of the connector. A mating part is provided on the end of the guide member near the base to cooperate with the actuating part. Multiple guide grooves are defined circumferentially along the inner wall of the largest hole of the stepped hole. A guide locking structure is formed between two adjacent guide grooves. The elastic member abuts between the fixing member and the knob. The guide member is movably inserted through the stepped hole. A locking slider is provided along the circumference of the guide member. Fasteners are inserted through the guide member and connected to the knob.

[0016] During use, when tightening the rope, simply press the knob once to compress and move the guide piece synchronously, causing the locking slider to slide out of the guide groove and the mating part to abut against the actuating part. Under the action of the actuating part, the guide piece rotates in the stepped hole, thereby locking the locking slider against the guide locking structure. The first locking part locks against the second locking part. At this time, the elastic element is compressed, and the linkage part locks against the check part, so that the knob can only rotate in one direction, either clockwise or counterclockwise. If the knob can only rotate in the clockwise direction, the knob can drive the winding wheel to rotate, thus tightening the rope. To loosen the cord, press the knob again after the first press. The mating part and the actuating part abut against each other, causing the guide to rotate within the stepped hole under the action of the actuating part. Simultaneously, the return force generated by the compression of the elastic element causes the locking slider to slide from the locking structure into the guide groove, separating the first locking element from the second locking element. At this point, the elastic element returns to its original position, the linkage part engages with the check valve, and the winding wheel can rotate freely in either clockwise or counterclockwise. The cord can then be unwound from the winding wheel. By repeatedly pressing the knob, the cord can be tightened or loosened. In other words, the cord can be tightened or loosened by simply pressing the knob, making the operation simple and convenient, avoiding the technical problem of difficulty in operation caused by pulling out the knob in existing technologies.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A perspective view of the take-up coil in a relaxed state is shown in some embodiments of this application; Figure 2 A cross-sectional schematic diagram of the take-up device in the relaxed state is shown in some embodiments of this application; Figure 3 The diagram shows cross-sectional views of the connectors and guides in a relaxed state in some embodiments of this application; Figure 4 A perspective view of the take-up device in a jammed state is shown in some embodiments of this application; Figure 5 The following is a cross-sectional schematic diagram showing the take-up device in a jammed state in some embodiments of this application; Figure 6The diagram shows cross-sectional views of the connector and guide in a locked state in some embodiments of this application; Figure 7 An exploded view of a take-up device from one perspective is shown in some embodiments of this application; Figure 8 An exploded view of the take-up device in some embodiments of this application is shown below; Figure 9 A perspective view of the knob is shown in some embodiments of this application; Figure 10 A perspective view of the fasteners in some embodiments of this application is shown; Figure 11 A perspective view of the connectors in some embodiments of this application is shown; Figure 12 An exploded view of the guide, connector, and reel in some embodiments of this application is shown; Figure 13 This application shows an exploded view of the guide, connector, and reel in some embodiments. Figure 14 A perspective view of the base is shown in some embodiments of this application.

[0020] Explanation of key component symbols: 100-Recorder; 110-Base; 111-Fourth locking part; 120-Fixing member; 121-Through cavity; 122-Elastic arm; 1221-Check valve; 123-Third locking part; 124-Second limiting part; 125-First clearance hole; 126-Second clearance hole; 130-Winding reel; 131-Actuating part; 1311-First toothed edge; 132-First locking part; 133-Winding shaft; 1331-First threading hole; 1332-Second threading hole; 134-Reel body; 140-Knob; 141-Linkage part; 142-First locking member; 14 3-Mounting post; 1431-First mounting hole; 144-First limiting part; 150-Connector; 151-Second snap-fit ​​part; 152-Stepped hole; 1521-Guide groove; 1522-Guide snap-fit ​​structure; 15221-Step-shaped structure; 152211-First stepped surface; 152212-Second stepped surface; 153-Second snap-fit ​​part; 160-Limiting component; 161-Guide; 1611-Mating part; 16111-Second toothed edge; 1612-Snap-fit ​​slider; 16121-Helical tooth; 1613-Second mounting hole; 170-Fastener. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 , Figure 4 , Figure 7 and Figure 8As shown, an embodiment of this application provides a cord retractor 100, which is mainly used in everyday items such as shoes, bags and clothes that have cords that need to be retracted. The cord retractor 100 includes a base 110, a fixing member 120, a winding wheel 130 for winding cord, a knob 140, a connector 150, a limiting component 160 and a fastener 170.

[0027] See also Figure 2 , Figure 3 , Figure 5 and Figure 6 The fixing member 120 is connected to the base 110 by a snap-fit ​​connection. The fixing member 120 has a through cavity 121 with openings at both ends. An elastic arm 122 is provided at the end of the fixing member 120 away from the base 110, and a check valve 1221 is provided on the circumferential edge of the elastic arm 122. The winding reel 130 is rotatably disposed within the through cavity 121, and a toggle part 131 is provided at the end of the winding reel 130 away from the base 110. A linkage part 141 and a first snap-fit ​​member 142 are provided on the side of the knob 140 facing the fixing member 120, and the linkage part 141 cooperates with the check valve 1221. The connector 150 is connected to the end of the winding reel 130 away from the base 110. The connection can be a snap-fit, so that the winding reel 130 and the connector 150 can rotate synchronously. The outer periphery of the connector 150 is provided with a second snap-fit ​​151 that cooperates with the first snap-fit ​​142.

[0028] It should be noted that the stop part 1221 can be a ratchet, and the linkage part 141 can be a helical tooth 16121 groove that can mesh with the ratchet. The base 110 can be fixed to the shoe tongue by rivets, or it can be fixed to a bag or clothing. The first snap-fit ​​part 142 is a protruding structure, and the second snap-fit ​​part 151 is a slot structure. When the first snap-fit ​​part 142 and the second snap-fit ​​part 151 are engaged, the knob 140 can rotate to drive the connecting part 150 and the winding reel 130 to rotate synchronously. The knob 140 can rotate in either a counterclockwise or clockwise direction, but cannot rotate in both directions.

[0029] The limiting component 160 includes a guide 161 and an elastic member. The connector 150 has a stepped hole 152 on its inner circumference. The guide 161 has a mating part 1611 that cooperates with the actuating part 131 at one end near the base 110. Multiple guide grooves 1521 are formed circumferentially along the inner wall of the largest hole of the stepped hole 152. A guide locking structure 1522 is formed between two adjacent guide grooves 1521. The elastic member abuts between the fixing member 120 and the knob 140. The guide 161 is movably inserted through the stepped hole 152. A locking slider 1612 is provided circumferentially along the guide 161. The locking slider 1612 can slide in the guide groove 1521 and can lock with the guide locking structure 1522.

[0030] The fastener 170 passes through the guide 161 and connects to the knob 140, so that the guide 161 and the knob 140 are axially fixed and can rotate circumferentially.

[0031] When the knob 140 is pressed, the locking slider 1612 slides out from the guide groove 1521, and the mating part 1611 abuts against the actuating part 131, so that the guide member 161 rotates in the stepped hole 152 under the action of the actuating part 131, thereby locking the locking slider 1612 with the guide locking structure 1522, and locking the first locking member 142 with the second locking member 151. At this time, the elastic member is compressed. Pressing the knob 140 again, the guide member 161 rotates in the stepped hole 152 under the action of the actuating part 131. Using the restoring elastic force generated by the compression of the elastic member, the locking slider 1612 slides from the locking structure into the guide groove 1521, and the first locking member 142 separates from the second locking member 151. At this time, the elastic member returns to its initial elastic deformation, which is the elastic state of the elastic member before the first pressing of the knob 140.

[0032] The take-up reel 100 provided in the embodiments of this application, when tightening the rope, only requires pressing the knob 140 once to squeeze and drive the guide member 161 to move synchronously, causing the locking slider 1612 to slide out from the guide groove 1521, and causing the mating part 1611 to abut against the actuating part 131, so that the guide member 161 rotates in the stepped hole 152 under the action of the actuating part 131, thereby causing the locking slider 1612 to engage with the guide locking structure 1522, and the first locking member 142 to engage with the second locking member 151. At this time, the elastic member is compressed, and the linkage part 141 engages with the check part 1221, so that the knob 140 can only rotate in one direction, either clockwise or counterclockwise. For example, if the knob 140 can only rotate in the clockwise direction, the knob 140 can drive the winding wheel 130 to rotate to tighten the rope.

[0033] To loosen the cord, press knob 140 again after the first press. The mating part 1611 abuts against the actuating part 131, causing the guide member 161 to rotate within the stepped hole 152 under the action of the actuating part 131. Simultaneously, the return force generated by the compression of the elastic member causes the locking slider 1612 to slide from the locking structure into the guide groove 1521. The first locking member 142 separates from the second locking member 151. At this point, the elastic member returns to its original position, and the linkage part 141... The check valve 1221 engages. Of course, in other embodiments, the linkage 141 and the check valve 1221 can also be separated. The winding wheel 130 can rotate freely in a clockwise or counterclockwise direction, and the rope can be released from the winding wheel 130. The tension of the rope can be achieved by pressing the knob 140 in a cyclical manner. That is, the tension of the rope can be adjusted by pressing the knob 140. The operation is simple and convenient, avoiding the technical problem of difficult operation caused by pulling up the knob in the prior art.

[0034] like Figure 3 , Figure 6 , Figure 12 and Figure 13 As shown, in one embodiment of this application, optionally, a plurality of helical teeth 16121 are spaced apart along the circumference of the guide member 161, the plurality of helical teeth 16121 forming the snap-fit ​​slider 1612, the actuating part 131 has a first toothed edge 1311, and the mating part 1611 has a second toothed edge 16111 that mates with the first toothed edge 1311.

[0035] In this embodiment, during use, when tightening the rope, simply press the knob 140 once to compress and drive the guide member 161 to move synchronously, causing the helical tooth 16121 to slide out of the guide groove 1521 and the second toothed edge 16111 to abut against the first toothed edge 1311. Under the action of the first toothed edge 1311, the guide member 161 rotates in the stepped hole 152, thereby causing the helical tooth 16121 to engage with the guide engagement structure 1522, and the first engagement member 142 to engage with the second engagement member 151. At this time, the elastic member is compressed, and the linkage part 141 engages with the anti-return part 1221. In this way, the knob 140 can drive the winding wheel 130 to rotate to tighten the rope.

[0036] If it is necessary to loosen the cord, press the knob 140 again after the first press. The second toothed edge 16111 abuts against the first toothed edge 1311, so that the guide 161 rotates in the stepped hole 152 under the action of the first toothed edge 1311. At the same time, the return force generated by the compression of the elastic element causes the helical tooth 16121 to slide from the snap-fit ​​structure into the guide groove 1521. The first snap-fit ​​142 separates from the second snap-fit ​​151. At this time, the elastic element resets, and the linkage part 141 snaps with the check part 1221. Of course, in other embodiments, the linkage part 141 and the check part 1221 can also separate. The winding wheel 130 can rotate freely in a clockwise or counterclockwise direction, and the cord can be released from the winding wheel 130.

[0037] like Figure 3 , Figure 6 , Figure 11 and Figure 12 As shown in the above embodiments of this application, optionally, the guide snap-fit ​​structure 1522 is a stepped structure 15221, and the stepped structure 15221 includes a first stepped surface 152211 and a second stepped surface 152212. The first stepped surface 152211 and the second stepped surface 152212 are inclined surfaces, and are respectively in the same inclination direction as the helical tooth 16121.

[0038] In this embodiment, when the knob 140 is pressed, the knob 140 pushes the helical tooth 16121 downward along the guide groove 1521 to the junction of the guide groove 1521 and the second step surface 152212. At this time, the elastic element is compressed and generates elastic force. After the knob 140 is released, the helical tooth 16121 moves from the junction of the guide groove 1521 and the second step surface 152212 to the position of the second step surface 152212 close to the first step surface 152211 under the action of the elastic force of the elastic element and the first toothed edge 1311, and is engaged at the position of the second step surface 152212 close to the first step surface 152211. The elastic element is still in a compressed state.

[0039] When the knob 140 is pressed again, the knob 140 pushes the helical tooth 16121 downward along the interface between the second step surface 152212 and the first step surface 152211 to the junction of the first step surface 152211 and the second step surface 152212. The elastic element is still in a compressed state. After the knob 140 is released, the helical tooth 16121 moves from the junction of the first step surface 152211 and the second step surface 152212 to the first step surface 152211 under the restoring elastic force of the elastic element and the action of the first toothed edge 1311, and moves along the first step surface 152211 to the guide groove 1521 to return to the initial position.

[0040] In the above embodiments of this application, optionally, the first toothed edge 1311 and the winding reel 130 are integrally injection molded.

[0041] In this embodiment, the first toothed edge 1311 and the winding reel 130 are integrally injection molded, which not only improves the connection stability between the actuating part 131 and the winding reel 130, but also makes the structure compact, improves the space utilization, and helps to reduce the overall thickness of the take-up reel 100. At the same time, the integral injection molding can also eliminate the installation step of mounting the actuating part 131 on the winding reel 130, thereby improving the overall installation efficiency of the take-up reel 100.

[0042] like Figure 12 As shown, in one embodiment of this application, optionally, the end of the winding reel 130 away from the base 110 is provided with a first engaging portion 132, and the end of the connector 150 near the base 110 is provided with a second engaging portion 153 that engages with the first engaging portion 132.

[0043] In this embodiment, by providing a first engaging portion 132 at the end of the winding reel 130 away from the base 110, and providing a second engaging portion 153 at the end of the connector 150 near the base 110 that engages with the first engaging portion 132, the winding reel 130 and the connector 150 are fixedly connected as one unit, thereby enabling the winding reel 130 and the connector 150 to rotate synchronously and stably.

[0044] For example, the first snap-fit ​​portion 132 can be a snap fastener, and the second snap-fit ​​portion 153 can be a slot that engages with the snap fastener; or the first snap-fit ​​portion 132 can be a slot, and the second snap-fit ​​portion 153 can be a snap fastener that engages with the slot.

[0045] like Figure 10 and Figure 14 As shown, in one embodiment of this application, optionally, the fastener 120 is provided with a third snap-fit ​​portion 123 at one end near the base 110, and the base 110 is provided with a fourth snap-fit ​​portion 111 that snaps into the third snap-fit ​​portion 123.

[0046] In this embodiment, by providing a third snap-fit ​​portion 123 at one end of the fastener 120 near the base 110, and providing a fourth snap-fit ​​portion 111 on the base 110 that snaps into the third snap-fit ​​portion 123, the fastener 120 is stably installed on the base 110, thereby achieving a stable installation function for the fastener 120.

[0047] For example, the third snap-fit ​​portion 123 can be a snap fastener, and the fourth snap-fit ​​portion 111 can be a slot that engages with the snap fastener; or the third snap-fit ​​portion 123 can be a slot, and the fourth snap-fit ​​portion 111 can be a snap fastener that engages with the slot.

[0048] In one embodiment of this application, optionally, the elastic arm 122 and the fixing member 120 are integrally injection molded.

[0049] In this embodiment, the elastic arm 122 and the fixing member 120 are integrally injection molded, which not only improves the connection stability between the elastic arm 122 and the fixing member 120, but also makes the structure compact, improves the space utilization, and helps to reduce the overall thickness of the take-up reel 100. At the same time, the integral injection molding can also eliminate the installation step of mounting the elastic arm 122 on the fixing member 120, thereby improving the overall installation efficiency of the take-up reel 100.

[0050] like Figure 6 , Figure 9 and Figure 13 As shown, in one embodiment of this application, optionally, the knob 140 has a protruding mounting post 143 on the side near the base 110, the mounting post 143 has a first mounting hole 1431, the guide member 161 has a second mounting hole 1613, and the fastener 170 passes through the second mounting hole 1613 and the first mounting hole 1431 in sequence, so that the guide member 161 is fastened to the knob 140.

[0051] In this embodiment, a mounting post 143 protrudes from the side of the knob 140 near the base 110, and a first mounting hole 1431 is formed on the mounting post 143, and a second mounting hole 1613 is formed on the guide member 161. This allows the fastener 170 to pass through the second mounting hole 1613 and the first mounting hole 1431 in sequence, thereby fastening the guide member 161 to the knob 140, and thus axially fixing the guide member 161 to the knob 140 while allowing it to rotate circumferentially.

[0052] For example, the fastener 170 can be a screw, the first mounting hole 1431 can be a screw hole that mates with the screw, and the second mounting hole 1613 can be a stepped mounting hole.

[0053] like Figure 9 and Figure 10 As shown, in one embodiment of this application, optionally, the knob 140 is provided with a first limiting part 144 in the inner circumferential direction at one end near the base 110, and the fixing member 120 is provided with a second limiting part 124 in the outer circumferential direction at one end away from the base 110, which cooperates with the first limiting part 144.

[0054] In this embodiment, a first limiting part 144 is provided in the inner circumferential direction at one end of the knob 140 near the base 110, and a second limiting part 124 that cooperates with the first limiting part 144 is provided in the outer circumferential direction at one end of the fixing member 120 away from the base 110, so as to limit the knob 140 and prevent the knob 140 from falling off the fixing member 120.

[0055] For example, the first limiting part 144 can be a limiting buckle, and the second limiting part 124 can be an annular protrusion that cooperates with the limiting buckle.

[0056] like Figure 2 , Figure 10 and Figure 12 As shown, in one embodiment of this application, optionally, the winding reel 130 includes a winding shaft 133 and a disc body 134 disposed at both ends of the winding shaft 133. The diameter of the disc body 134 is larger than the diameter of the winding shaft 133. The winding shaft 133 is provided with a first threading hole 1331 and a second threading hole 1332 respectively along a direction perpendicular to the axis of the winding shaft 133. The fixing member 120 is provided with a first clearance hole 125 and a second clearance hole 126. The first clearance hole 125 is provided corresponding to the first threading hole 1331, and the second clearance hole 126 is provided corresponding to the second threading hole 1332.

[0057] In this embodiment, one end of the rope can pass through the first clearance hole 125 and the first threading hole 1331 in sequence and be knotted and fixed inside the winding wheel 130, and the other end of the rope can pass through the second clearance hole 126 and the second threading hole 1332 in sequence and be knotted and fixed inside the winding wheel 130.

[0058] In summary, this application proposes a take-up reel 100, which includes a base 110, a fixing member 120, a winding reel 130 for winding, a knob 140, a connector 150, a limiting component 160, and a fastener 170. The limiting component 160 includes a guide member 161 and an elastic member. The fixing member 120 is connected to the base 110 and has a through cavity 121 with openings at both ends. An elastic arm 122 is provided at the end of the fixing member 120 away from the base 110, and a check portion 1221 is provided on the circumferential edge of the elastic arm 122. The winding reel 130 is rotatably disposed in the through cavity 121, and a toggle portion 131 is provided at the end of the winding reel 130 away from the base 110. The knob 140 has a first locking member 142 and a linkage portion that cooperates with the check portion 1221 on the side facing the fixing member 120. 141. Connector 150 is connected to the end of reel 130 away from base 110. Connector 150 has a second snap-fit ​​part 151 that cooperates with the first snap-fit ​​part 142 on its outer periphery. Connector 150 has a stepped hole 152 on its inner periphery. Guide 161 has a mating part 1611 that cooperates with the actuating part 131 on its end near base 110. Multiple guide grooves 1521 are formed circumferentially along the inner wall of the largest hole of stepped hole 152. Guide snap-fit ​​structures 1522 are formed between two adjacent guide grooves 1521. Elastic member abuts between fixing member 120 and knob 140. Guide 161 is movably inserted through stepped hole 152. Snap-fit ​​slider 1612 is provided along the periphery of guide 161. Fastener 170 is inserted through guide 161 and connected to knob 140.

[0059] During use, when tightening the rope, simply press the knob 140 once to compress and move the guide 161 synchronously, causing the locking slider 1612 to slide out of the guide groove 1521 and the mating part 1611 to abut against the actuating part 131. Under the action of the actuating part 131, the guide 161 rotates in the stepped hole 152, thereby locking the locking slider 1612 against the guide locking structure 1522. The first locking part 142 locks against the second locking part 151. At this time, the elastic element is compressed, and the linkage part 141 locks against the check part 1221, so that the knob 140 can only rotate in one direction, either clockwise or counterclockwise. If the knob 140 can only rotate in the clockwise direction, the knob 140 can drive the winding wheel 130 to rotate, thereby tightening the rope. To loosen the cord, press the knob 140 again after the first press. The mating part 1611 abuts against the actuating part 131, causing the guide 161 to rotate within the stepped hole 152 under the action of the actuating part 131. Simultaneously, the return force generated by the compression of the elastic element causes the locking slider 1612 to slide from the locking structure into the guide groove 1521. The first locking element 142 separates from the second locking element 151. At this time, the elastic element returns to its original position, and the linkage part 141 engages with the check part 1221. The winding wheel 130 can rotate freely in a clockwise or counterclockwise direction, and the cord can be released from the winding wheel 130. By sequentially pressing the knob 140, the cord can be tightened or loosened. In other words, the cord can be tightened or loosened by pressing the knob 140. The operation is simple and convenient, avoiding the technical problem of difficult operation caused by pulling out the knob in the prior art.

[0060] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0061] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A cable retractor, characterized in that, include: Base; A fastener is connected to the base. The fastener has a through cavity with openings at both ends. An elastic arm is provided at the end of the fastener away from the base. A check valve is provided on the circumferential edge of the elastic arm. A winding reel for winding wire is rotatably disposed within the cavity about an axial direction, and a actuating part is provided at the end of the winding reel away from the base; The knob has a linkage part and a first locking part on the side facing the fixing member, and the linkage part cooperates with the anti-return part; A connector is connected to the end of the winding reel away from the base, and a second snap-fit ​​is provided on the outer periphery of the connector to cooperate with the first snap-fit; A limiting component includes a guide and an elastic element. The connector has a stepped hole on its inner circumference. The guide has a mating part that cooperates with the actuating part at one end near the base. Multiple guide grooves are defined circumferentially along the inner wall of the stepped hole with the largest diameter. A guide snap-fit ​​structure is formed between two adjacent guide grooves. The elastic element abuts between the fixing element and the knob. The guide is movably inserted through the stepped hole. A snap-fit ​​slider is provided circumferentially along the guide. Fastener, which passes through the guide and connects to the knob; When the knob is pressed, the locking slider slides out of the guide groove, and the mating part abuts against the actuating part, so that the guide member rotates in the stepped hole under the action of the actuating part, thereby locking the locking slider with the guide locking structure, and locking the first locking member with the second locking member; when the knob is pressed again, the guide member rotates in the stepped hole under the action of the actuating part, thereby sliding the locking slider from the locking structure into the guide groove, and separating the first locking member from the second locking member; Multiple helical teeth are spaced apart along the circumference of the guide member, and the multiple helical teeth form the locking slider. The actuating part has a first toothed edge, and the mating part has a second toothed edge that mates with the first toothed edge.

2. The take-up device according to claim 1, characterized in that, The guide snap-fit ​​structure is a stepped structure, and the stepped structure includes a first stepped surface and a second stepped surface. The first stepped surface and the second stepped surface are inclined surfaces, and are in the same direction of inclination as the helical teeth.

3. The take-up device according to claim 1, characterized in that, The first toothed edge is integrally injection molded with the winding reel.

4. The take-up device according to claim 1, characterized in that, The winding reel has a first engaging portion at the end away from the base, and the connector has a second engaging portion at the end near the base that engages with the first engaging portion.

5. The take-up device according to claim 1, characterized in that, The fastener has a third locking part at one end near the base, and the base has a fourth locking part that engages with the third locking part.

6. The take-up device according to claim 1, characterized in that, The elastic arm and the fixing component are integrally injection molded.

7. The take-up device according to claim 1, characterized in that, The knob has a protruding mounting post on the side near the base. The mounting post has a first mounting hole, and the guide has a second mounting hole. The fastener passes through the second mounting hole and the first mounting hole in sequence to securely connect the guide to the knob.

8. The take-up device according to claim 1, characterized in that, The knob is provided with a first limiting part on its inner circumference at one end near the base, and the fastener is provided with a second limiting part on its outer circumference at one end away from the base, which cooperates with the first limiting part.

9. The take-up device according to any one of claims 1 to 8, characterized in that, The winding reel includes a winding shaft and discs disposed at both ends of the winding shaft. The diameter of the discs is larger than the diameter of the winding shaft. The winding shaft has a first threading hole and a second threading hole respectively opened along a direction perpendicular to the axis of the winding shaft. The fixing member has a first clearance hole and a second clearance hole. The first clearance hole is disposed corresponding to the first threading hole, and the second clearance hole is disposed corresponding to the second threading hole.

Images