Take-up device and elastic band structure

Abstract

The utility model discloses a take-up device and an elastic band structure, the take-up device comprises a take-up box and a take-up assembly, the take-up assembly comprises a middle shaft, an elastic piece and a take-up wheel, one end of the elastic piece is connected with the middle shaft, the other end of the elastic piece is connected with the take-up wheel, a first clamping part of the elastic piece is clamped in a clamping groove of the middle shaft, and a second clamping part of the elastic piece is clamped in the clamping groove of the middle shaft. The second clamping block is connected with the middle shaft in an inserted mode, the connecting stability of the elastic piece and the middle shaft can be improved, the problem that the elastic piece deviates or is disengaged from the middle shaft is avoided, and the problem that the take-up wheel shakes during rotation is solved, the elastic band structure comprises an elastic band, an inserting buckle assembly, a locking assembly and a take-up device, and the locking assembly and the take-up device are connected with the box body. One end of the elastic band is connected with the take-up device, the other end of the elastic band is connected with the insertion buckle assembly, the insertion buckle assembly is connected with the locking assembly in an inserted mode, the box body comprises but not limited to a sorting box and a coaming box, and the elastic band structure can be applied to any box body with the article binding requirement.

Description

TECHNICAL FIELD

[0001] The utility model relates to a take -up device technical field, concretely to a take -up device and elastic band structure. BACKGROUND

[0002] The take -up device, also called as recovery winding device or cable winding device, is a kind of equipment specially used for winding and storing wire, cable and other wire materials, and is widely applied to building, machinery, metallurgy, petrochemical, electric power and other industries, and household, office and other places;

[0003] However, the take -up device structure on the market is too simple currently, usually sets up rotating shaft in the inside of take -up box, and is equipped with coil spring and take -up wheel in the inside of take -up box, but the structure can easily lead to the problem of take -up wheel shaking when rotating, and the use effect is poor. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiency of prior art scheme, the utility model provides a take -up device and elastic band structure, which can effectively solve the technical problem of take -up wheel shaking when rotating of the take -up device on the market.

[0005] The utility model solves technical scheme that it adopts: a take -up device, including take -up box and the winding assembly equipped in the inside of take -up box, winding assembly includes middle shaft, elastic part and take -up wheel, elastic part is set on middle shaft, take -up wheel is rotatably set on middle shaft, one end of elastic part is connected with middle shaft, the other end of elastic part is connected with take -up wheel.

[0006] Further, one side of the take -up box is provided with a take -up slot, the take -up slot is rectangular, and the take -up slot is provided with an inclined surface.

[0007] Further, one end of the elastic part is provided with a first clamping part, the middle shaft is provided with a clamping groove for clamping the first clamping part.

[0008] Further, the other end of the elastic part is provided with a second clamping part, the inner wall of the take -up wheel is provided with a clamping block, and the clamping block and the inner wall of the take -up wheel form a clamping groove for clamping the second clamping part.

[0009] Further, the winding assembly further comprises a second clamping block, the outer end of the middle shaft is provided with a first clamping block, the middle shaft is connected with the second clamping block, and the first clamping block and the second clamping block are fixedly connected with the take -up box.

[0010] Further, the inner end of the second clamping block is provided with a group of connecting blocks, the inner end of the middle shaft is provided with a group of insertion grooves matched with the connecting blocks, the connecting blocks are connected with the insertion grooves, and the second clamping block and the middle shaft are inserted with each other.

[0011] Further, one side of the take-up wheel is provided with a mounting groove for accommodating the elastic member, and the other side of the take-up wheel is provided with an axle hole for cooperating with the middle shaft to rotate, the axle hole and the mounting groove being in communication with each other.

[0012] Further, the take-up wheel is provided with a recess, the take-up assembly further comprises an outer cover, the recess and the mounting groove being in communication with each other, the outer cover is provided with a protruding part integrally formed thereon, the protruding part is in shape and size matched with the recess, the protruding part is arranged in the recess, and the outer cover is synchronously rotated with the take-up wheel.

[0013] Further, the two sides of the take-up wheel are provided with limiting parts integrally formed thereon, the limiting parts are in annular shape, and the outer diameter of the limiting parts is greater than the outer diameter of the take-up wheel.

[0014] The elastic band structure comprises an elastic band, a plug-in buckle assembly, a locking assembly and a take-up device, one end of the elastic band is connected with the take-up device, the other end of the elastic band is connected with the plug-in buckle assembly, and the plug-in buckle assembly is connected with the locking assembly in plug-in mode.

[0015] Compared with the prior art, the elastic band structure has the following beneficial effects:

[0016] By arranging the take-up assembly in the take-up box, the elastic member is sleeved on the middle shaft, the take-up wheel is rotatably sleeved on the middle shaft, one end of the elastic member is connected with the middle shaft, and the other end of the elastic member is connected with the take-up wheel, so that the take-up wheel is rotated relative to the middle shaft, and the elastic member is used for automatic recovery.

[0017] Since the first clamping part of the elastic member is clamped in the clamping groove of the middle shaft, and the second clamping block is inserted with the middle shaft, on the one hand, the connection stability of the elastic member and the middle shaft is improved, and on the other hand, the position of the elastic member is effectively fixed in a certain range, so that the problems of deviation or disengagement of the elastic member are avoided, and thus the problem of shaking of the take-up wheel during rotation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of an elastic band structure.

[0019] Figure 2 It is an exploded view of an elastic band structure.

[0020] Figure 3 It is a structure schematic view of a plug-in buckle assembly and a locking assembly.

[0021] Figure 4 It is a structure schematic view of a take-up box.

[0022] Figure 5 It is a sectional view of a take-up device.

[0023] Figure 6An exploded view of the front view of the winding assembly;

[0024] Figure 7 This is an exploded view of the rewind assembly from the rear view angle.

[0025] Numbering on the map:

[0026] 100-Cable retractor; 101-Cable retractor box; 1011-Outer shell; 1012-Base; 1013-Fixing block; 102-Curved surface; 103-Cable retractor groove; 104-Cable reel; 105-Limiting part; 107-Snap-fit ​​groove; 108-Second snap-fit ​​part; 109-Elastic element; 110-Snap-fit ​​block; 111-First snap-fit ​​part; 112-Connecting block; 113-Second snap-fit ​​block; 114-Protrusion; 115-Outer cover; 116-Shaft hole; 117-Central shaft; 118-First 119-Card slot; 120-Slot; 121-Groove; 123-Mounting slot; 200-Elastic band; 300-Snap fastener assembly; 301-Connector; 302-Connecting hole; 303-Connecting seat; 304-Limiting groove; 305-Connecting piece; 306-Connecting part; 307-Plug-in groove; 400-Locking assembly; 401-Rotating rod; 402-Moving piece; 403-Pressing block; 404-Fixing piece; 405-Limiting protrusion; 406-Torsion spring; 409-Bevel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-2 As shown, an elastic band structure includes an elastic band 200, a snap fastener assembly 300, a locking assembly 400, and a take-up reel 100. Two elastic bands 200 are provided. One end of each elastic band 200 is connected to the take-up reel 100, specifically, the tail end of the elastic band 200 is connected to a take-up reel 104. The take-up reel 104 rotates around the central axis of a central shaft 117, causing the take-up reel 104 to wind the elastic band 200 around its outer wall. The other end of the elastic band 200 is connected to the snap fastener assembly 300, which is plugged into the locking assembly 400. Figure 3As shown, the insertion buckle assembly 300 comprises a connecting piece 301, a connecting seat 303 and a connecting piece 305 arranged in sequence from top to bottom, the connecting piece 305 is provided with a limiting groove 304, the fixing member 404 is fitted with a pressing block 403 in sliding connection with the fixing member 404, the pressing block 403 is provided with a limiting portion 105, the design of the limiting portion 105 makes the pressing block 403 not to be separated from the fixing member 404, the locking assembly 400 comprises a fixing member 404, a movable piece 402, a rotating rod 401 and a torsion spring 406, the fixing member 404 is fitted in the mounting groove 123 of the box body, and the fixing member 404 and the groove wall of the mounting groove 123 have a spacing to form an insertion slot 307, the take-up box 101 is stably connected with the sorting box or the fence box and other products, here, the sorting box or the fence box is collectively referred to as the box body, it should be noted that the box body includes but is not limited to the sorting box and the fence box, the elastic band 200 structure can be applied to any box body which has the need of binding articles, the top end of the movable piece 402 is formed with a group of left and right spaced connecting portions 306, the connecting portion 306 is provided with a through hole for the rotating rod 401 to pass through, the torsion spring 406 is sleeved outside the rotating rod 401, and the torsion spring 406 is located between the group of connecting portions 306, the two ends of the rotating rod 401 are arranged on the side wall of the fixing member 404, the movable piece 402 is rotatably connected with the box body through the rotating rod 401 and the torsion spring 406, the middle upper end of the movable piece 402 is formed with a limiting protrusion 405, and the limiting protrusion 405 is provided with an inclined surface 409, the connecting piece 301 is provided with a group of left and right symmetrically distributed connecting holes 302, the front end of the elastic band 200 passes through the connecting holes 302 in parallel and is connected with the elastic band 200 itself after winding around the connecting piece 301 once;

[0029] As Figures 4-7As shown, the take-up device 100 comprises a take-up box 101 and a winding assembly arranged inside the take-up box 101. The take-up box 101 comprises a shell 1011 and a base 1012. The base 1012 is provided with a plurality of fixing blocks 1013. The fixing blocks 1013 are used to connect with the first clamping block 118 and the second clamping block 113, so that the take-up device 100 is independently arranged, which is equivalent to arranging the take-up box 101 in the box. The take-up device 100 of the embodiment has high flexibility. The winding assembly comprises a middle shaft 117, an elastic member 109 and a take-up wheel 104. The take-up wheel 104 is provided with a limiting portion 105 integrally formed on one side thereof. The limiting portion 105 has an annular shape, and the outer diameter of the limiting portion 105 is greater than the outer diameter of the take-up wheel 104. The take-up wheel 104 is wound with an elastic band 200. The limiting portion 105 plays a guiding role, so that the elastic band 200 is centered on the take-up wheel 104, and the problem of deviation is avoided. One side of the take-up box 101 is provided with a take-up groove 103. The take-up groove 103 has a rectangular shape, and the take-up groove 103 is provided with an arc surface 102. The design of the arc surface 102 can reduce the friction of the elastic band 200, thereby improving the service life of the elastic band 200. The elastic member 109 is a traditional coil spring. The elastic member 109 is sleeved on the middle shaft 117. The take-up wheel 104 is rotatably sleeved on the middle shaft 117. One end of the elastic member 109 is connected with the middle shaft 117. The other end of the elastic member 109 is connected with the take-up wheel 104. One side of the take-up wheel 104 is provided with a mounting groove 123 for accommodating the elastic member 109. The other side of the take-up wheel 104 is provided with an axle hole 116 for cooperating with the middle shaft 117 to rotate. The axle hole 116 and the mounting groove 123 are in communication with each other. One end of the elastic member 109 is provided with a first clamping portion 111. The middle shaft 117 is provided with a clamping groove 119 for clamping the first clamping portion 111. The other end of the elastic member 109 is provided with a second clamping portion 108. The inner wall of the take-up wheel 104 is provided with a clamping block 110. The clamping block 110 is spaced from the inner wall of the take-up wheel 104 to form a clamping groove 107 for clamping the second clamping portion 108. The winding assembly further comprises a second clamping block 113. The outer end of the middle shaft 117 is provided with a first clamping block 118. The middle shaft 117 is connected with the second clamping block 113. The inner end of the second clamping block 113 is provided with a plurality of connecting blocks 112. The inner end of the middle shaft 117 is provided with a plurality of insertion grooves 120 which are matched with the connecting blocks 112 in shape. The connecting blocks 112 are connected with the insertion grooves 120, and the second clamping block 113 and the middle shaft 117 are inserted with each other. The first clamping block 118 and the second clamping block 113 are fixedly connected with the take-up box 101. In the design, the middle shaft 117 serves as a core supporting component of the entire winding assembly. The middle shaft 117 remains stationary to provide a stable rotation center for the elastic member 109 and the take-up wheel 104. The elastic member 109 can not only transmit torque, but also provide elastic buffering and energy storage functions within a certain range. The take-up wheel 104 rotates with the deformation of the elastic member 109. When the winding operation is not performed,The take-up wheel 104 is in a free state, the elastic member 109 is in an undeformed or slightly deformed state, the central shaft 117 remains stationary and serves to support the elastic member 109 and the take-up wheel 104, when it is necessary to wind the wire, an external force is applied to the take-up wheel 104 to make it start to rotate, with the rotation of the take-up wheel 104, the elastic member 109 starts to deform, and the torque is transmitted from the central shaft 117 to the take-up wheel 104, the elastic band 200 is gradually wound on the take-up wheel 104, and the winding operation is completed.

[0030] The take-up wheel 104 is provided with a recess 121, and the winding assembly further comprises an outer cover 115, the recess 121 and the mounting groove 123 are in communication with each other, the outer cover 115 is provided with a protruding portion 114 integrally formed thereon, the shape and size of the protruding portion 114 are matched with the recess 121, the protruding portion 114 is arranged in the recess 121, and the outer cover 115 is synchronously rotated with the take-up wheel 104.

[0031] The connection process of the plug-in buckle assembly 300 and the locking assembly 400 and the pulling-out process of the elastic band 200:

[0032] The initial state of the locking assembly 400, because the torsional spring 406 will maintain a certain pre-tightening force, the movable piece 402 has an inclination angle when it is not subjected to an external force, at this time, the plug-in groove 307 is in a state of wide at the top and narrow at the bottom, the user pulls out the elastic band 200, the take-up wheel 104 rotates to make the coil spring elastically deform, the force generated by the rotation of the take-up wheel 104 is stored in the coil spring in the form of elastic potential energy, the user inserts the connecting piece 305 into the plug-in groove 307 from top to bottom, in this process, the connecting piece 305 pushes the movable piece 402 along the inclined surface 409, the movable piece 402 rotates around the central axis of the rotating rod 401 against the pre-tightening force of the torsional spring 406, when the connecting piece 305 is pushed to the position where the limiting groove 304 and the limiting protrusion 405 are opposite to each other, the torsional spring 406 releases the stored torsional energy to pull the movable piece 402 back to the original position, at this time, the limiting protrusion 405 and the limiting groove 304 are connected, and the pressing block 403 and the bottom end of the movable piece 402 are in contact but not connected.

[0033] The disconnection process of the plug-in buckle assembly 300 and the locking assembly 400 and the recovery process of the elastic band 200:

[0034] The user presses the pressing block 403, the movable sheet 402 overcomes the pre-tightening force of the torsion spring 406 and rotates around the central axis of the rotating rod 401, so that the limiting lug 405 is separated from the limiting groove 304, the torsion spring 406 releases the stored torsional energy, and the movable sheet 402 is pulled back to the original position, at this time, the plug buckle assembly 300 is recovered under the driving action of the winding assembly, specifically, the coil spring releases the stored elastic potential energy, so as to drive the take-up wheel 104 to rotate around the central axis of the middle shaft 117, and the take-up wheel 104 drives the elastic band 200 to wind on the outer wall of the take-up wheel 104, thereby realizing the recovery of the elastic band 200, and the connecting piece 301 is located at the position of the take-up groove 103.

[0035] Compared with the prior art: by arranging the winding assembly in the take-up box 101, the elastic member 109 is sleeved on the middle shaft 117, the take-up wheel 104 is rotatably sleeved on the middle shaft 117, one end of the elastic member 109 is connected with the middle shaft 117, and the other end of the elastic member 109 is connected with the take-up wheel 104, so that the take-up wheel 104 rotates relative to the middle shaft 117, and the elastic member 109 is used for automatic recovery, since the first clamping part 111 of the elastic member 109 is clamped in the clamping groove 119 of the middle shaft 117, and the second clamping block 113 is inserted with the middle shaft 117, on the one hand, the connection stability of the elastic member 109 and the middle shaft 117 can be improved, and on the other hand, the position of the elastic member 109 can be effectively fixed in a certain range, so that the problems of deviation or disengagement of the elastic member 109 from the middle shaft 117 are avoided, and therefore, the problem of shaking of the take-up wheel 104 during rotation can be avoided.

[0036] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A cable retractor, characterized in that, The device includes a take-up box and a take-up assembly installed inside the take-up box. The take-up assembly includes a central shaft, an elastic element, and a take-up reel. The elastic element is sleeved on the central shaft, and the take-up reel is rotatably sleeved on the central shaft. One end of the elastic element is connected to the central shaft, and the other end of the elastic element is connected to the take-up reel. A take-up groove is provided on one side of the take-up box. The take-up groove is rectangular and has an inclined surface. One end of the elastic element is provided with a first locking part. The central shaft is provided with a locking groove for locking the first locking part. The other end of the elastic element is provided with a second locking part. The inner wall of the take-up reel is provided with a locking block. The locking block and the inner wall of the take-up reel are spaced apart to form a locking groove for locking the second locking part. The winding assembly also includes a second locking block. The outer end of the central shaft is provided with a first locking block. The central shaft is connected to the second locking block. Both the first and second locking blocks are fixedly connected to the winding box. The inner end of the second locking block is provided with a set of connecting blocks. The inner end of the central shaft is provided with a set of slots that match the shape of the connecting blocks. The connecting blocks are connected to the slots, so that the second locking block and the central shaft can be inserted into each other. One side of the take-up reel has a mounting groove for accommodating the elastic element, and the other side of the take-up reel has a shaft hole for rotating with the central shaft. The shaft hole and the mounting groove are interconnected. The take-up reel has a groove. The take-up assembly also includes an outer cover. The groove and the mounting groove are interconnected. The outer cover has an integrally formed protrusion. The shape and size of the protrusion match the groove. The protrusion is located inside the groove and allows the outer cover to rotate synchronously with the take-up reel. Both sides of the take-up reel have integrally formed limiting parts. The limiting parts are ring-shaped, and the outer diameter of the limiting parts is larger than the outer diameter of the take-up reel.

2. An elastic band structure, characterized in that, It includes an elastic band, a buckle assembly, a locking assembly, and a take-up device as described in claim 1, wherein one end of the elastic band is connected to the take-up device, the other end of the elastic band is connected to the buckle assembly, and the buckle assembly is plugged into the locking assembly.

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