阅读说明：本技术 一种减少放线惯性的线缆绕线轮 (Cable reel capable of reducing paying-off inertia ) 是由 廖偲米 于 2021-09-27 设计创作，主要内容包括：本发明适用于绕线轮技术领域,提供了一种减少放线惯性的线缆绕线轮,包括：绕线轮本体；其包括缠绕部、左连接盘及右连接盘；缠绕部上缠绕有线缆；主动锁止仓,其同心转动连接所述右连接盘一侧；主动锁止仓的内部与右连接盘的内部连通；从动锁止仓,其同心转动连接左连接盘一侧；主动锁止仓及从动锁止仓的上方周边均设有活动开口；主动锁止仓及从动锁止仓分别通过活动开口各延伸出一活动杆；活动杆可绕着绕线轮本体的轴线转动；线缆输出组件包括一设有吊耳的引导件；右连接盘内部设有活动制动组件,借此,本发明可以对由惯性驱动转动的绕线轮进行及时制动,避免多余的线缆从绕线轮上脱落,造成多余的工作量,影响工作效率。(The invention is applicable to the technical field of reels, and provides a cable reel for reducing pay-off inertia, which comprises: a reel body; the winding part is arranged on the left connecting disc; the winding part is wound with a cable; the driving locking bin is concentrically and rotatably connected with one side of the right connecting disc; the interior of the active locking bin is communicated with the interior of the right connecting disc; the driven locking bin is concentrically and rotatably connected with one side of the left connecting disc; the peripheries of the upper parts of the driving locking bin and the driven locking bin are provided with movable openings; the driving locking bin and the driven locking bin respectively extend out of a movable rod through movable openings; the movable lever is rotatable about the axis of the reel body; the cable output assembly comprises a guide part provided with a lifting lug; the movable brake assembly is arranged in the right connecting disc, so that the invention can brake the reel which is driven by inertia to rotate in time, and avoid redundant cables from falling off the reel, causing redundant workload and influencing working efficiency.)

1. A cable reel for reducing payoff inertia, comprising:

a reel body; the winding mechanism comprises a cylindrical winding part, a left connecting disc fixedly connected to the left end face of the winding part and a right connecting disc fixedly connected to the right end face of the winding part;

the winding part is wound with a cable;

the left connecting disc is of a disc-shaped shell structure with a connecting port on one end face;

the driving locking bin is concentrically and rotatably connected with one side of the right connecting disc; the interior of the active locking bin is communicated with the interior of the right connecting disc;

the driven locking bin is concentrically and rotatably connected to one side of the left connecting disc;

the outer walls of the upper parts of the driving locking bin and the driven locking bin are provided with movable openings, and the lower parts of the driving locking bin and the driven locking bin are provided with supporting frames; the driving locking bin and the driven locking bin respectively extend out of a movable rod through the movable opening; the movable lever is rotatable around a central axis of the reel body inside the movable opening;

a cable output assembly is arranged between the two movable rods; the cable output assembly comprises a connecting roller which is rotatably connected between the upper ends of the two movable rods and a guide piece which is arranged on the connecting roller; the guide member includes a wire suspending portion for the cable to pass through;

a movable brake component is arranged inside the right connecting disc;

when the cable is paid out, the cable is pulled; the movable rod rotates by a preset angle under the action of the pulling force of the cable; the rotating movable rod can drive the movable brake assembly to cancel braking on the reel body, and the reel body can rotate;

when the movable rod loses the cable pulling force; the movable rod swings back to an initial state; the movable rod in the backswing state can drive the movable brake component to brake the rotating reel body.

2. The cable reel of claim 1, for reducing payoff inertia, wherein the active brake assembly comprises:

the fixed disc is fixedly connected in the right connecting disc; the periphery of the fixed disc is provided with a connecting bulge;

one end of the pressing braking piece is movably hinged to the connecting bulge, and the other end of the pressing braking piece is a movable end; the movable end can be contacted with the inner wall of the right connecting disc; an arc-shaped strip-shaped sliding groove is formed in one side face of the pressing braking piece;

when the movable rod rotates to a position with a preset angle, the pressing braking piece is separated from the inner wall of the right connecting disc;

when the movable rod returns to the initial state, the pressing braking piece is in pressing contact with the inner wall of the right connecting disc.

3. The cable reel for reducing pay-off inertia as set forth in claim 2, wherein a planetary gear set for transmitting power between the movable rod and the movable brake assembly is provided in the active lock chamber;

the planetary gear set includes:

an annular center wheel; the upper end of the central wheel is fixedly connected with the movable rod; the lower end of the central wheel is rotatably connected with a balancing weight; the joint of the balancing weight and the central wheel is positioned on the extension line of the movable rod;

a plurality of planet wheels annularly arranged on the periphery of the central wheel; the planet wheel is fixedly arranged on the inner wall of the active locking bin; a plurality of planet wheels are in meshing transmission with a central wheel;

the driving gear rings are arranged on the peripheries of the plurality of planet wheels; a connecting column is fixedly connected to one end face, far away from the central wheel, of the driving gear ring; the connecting column is slidably mounted in the chute; and a plurality of planet wheels are in meshing transmission with the driving gear ring.

4. The cable reel of claim 1, wherein the guide member includes a sleeve movably fitted to the connection roller and a suspension wire portion welded to a wall of the sleeve; the cable passes through the inside of the messenger section.

5. The cable reel of claim 4, wherein the hanging wire portion is a hanging lug welded to the barrel wall of the sleeve.

6. The cable reel of claim 4, wherein the hanging portion includes a roller mount welded to an outer wall of the sleeve and a roller rotatably mounted to the roller mount.

7. The cable reel for reducing pay-off inertia according to claim 1, wherein the initial state of the movable lever is when the angle of the movable lever with respect to a vertical plane is 15 °.

8. The cable reel of claim 2, wherein the hold-down brake is provided in plurality; the pressing braking pieces are annularly arranged on the periphery of the fixed disc.

9. The cable reel for reducing pay-off inertia according to claim 2, wherein a working surface on the hold-down stopper that contacts an inner wall of the right connection disc is provided as a curved surface.

Technical Field

The invention relates to the technical field of reels, in particular to a cable reel capable of reducing paying-off inertia.

Background

The medium-sized or large-sized cable reel among the prior art, at the pull cable unwrapping wire in-process, the reel can self rotate, when taking the cable of required length after stopping the pull, the cable reel can continue to rotate owing to receiving self rotational inertia's influence, some cable that twine on the reel can receive pivoted reel influence landing from the reel afterwards, cause the cable that the part does not use to pile up subaerially, the workman just need with reel antiport with this to the recovery of the cable that breaks away from the reel, just so further increased workman's work load.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a cable reel with reduced pay-off inertia, which can timely brake the reel driven by inertia to rotate, thereby preventing the excess cable from falling off the reel, causing excess workload and affecting the working efficiency.

In order to achieve the above object, the present invention provides a cable reel that reduces payoff inertia, including a reel body; the winding mechanism comprises a cylindrical winding part, a left connecting disc fixedly connected to the left end face of the winding part and a right connecting disc fixedly connected to the right end face of the winding part; the winding part is wound with a cable; the left connecting disc is of a disc-shaped shell structure with a connecting port on one end face; the driving locking bin is concentrically and rotatably connected with one side of the right connecting disc; the interior of the active locking bin is communicated with the interior of the right connecting disc; the driven locking bin is concentrically and rotatably connected with one side of the left connecting disc; the upper outer walls of the driving locking bin and the driven locking bin are provided with movable openings, and the lower outer walls of the driving locking bin and the driven locking bin are provided with supporting frames; the driving locking bin and the driven locking bin respectively extend out of a movable rod through the movable opening; the movable rod is rotatable about the axis of the reel body; a cable output assembly is arranged between the two movable rods; the cable output assembly comprises a connecting roller and a guide piece which are rotatably connected between the upper ends of the two movable rods; the guide member includes a wire suspending portion for the cable to pass through; a movable brake component is arranged inside the right connecting disc; when the cable is paid out, the cable is pulled; the movable rod rotates by a preset angle under the action of the pulling force of the cable; the rotating movable rod can cancel the braking of the movable braking assembly on the reel body, and the reel body can rotate; when the movable rod loses the pulling force of the cable; the movable rod is restored to the initial state; the swinging-back movable rod drives the movable brake assembly to brake the reel body.

According to the cable reel capable of reducing pay-off inertia, the movable brake assembly comprises an annular fixed disc which is fixedly connected into the right connecting disc; the periphery of the fixed disc is provided with a connecting bulge; one end of the pressing braking piece is movably hinged to the connecting bulge; an arc-shaped strip-shaped sliding groove is formed in one side face of the pressing braking piece; when the movable rod rotates to a position with a preset angle, the pressing braking piece is separated from the inner wall of the right connecting disc; when the movable rod returns to the initial state, the pressing braking piece is in pressing contact with the inner wall of the right connecting disc.

According to the cable reel for reducing paying-off inertia, the driving locking bin is internally provided with a planetary gear set for realizing transmission between the movable rods; the planetary gear set includes: an annular center wheel; the upper end of the central wheel is fixedly connected with the movable rod; the lower end of the central wheel is rotatably connected with a balancing weight; the joint of the balancing weight and the central wheel is positioned on the extension line of the movable rod; the planet wheels are annularly arranged on the periphery of the central wheel; the planet wheel is fixedly arranged on the active locking bin; a plurality of planet wheels are in meshing transmission with a central wheel; the driving gear rings are arranged on the peripheries of the plurality of planet wheels; a connecting column is fixedly connected to one end face, far away from the central wheel, of the driving gear ring; the connecting column is slidably mounted in the chute; and a plurality of planet wheels are in meshing transmission with the driving gear ring.

According to the cable reel for reducing pay-off inertia, the guide piece comprises a sleeve movably sleeved on the connecting roller and a wire hanging part welded on the wall of the sleeve; the cable passes through the inside of the messenger section.

The hanging wire part according to the invention can be a hanging lug welded on the wall of the sleeve.

According to the cable reel of the present invention, the suspension wire portion includes a roller mounting seat welded to the outer wall of the sleeve and a roller rotatably mounted to the roller mounting seat.

According to the cable reel for reducing pay-off inertia, the initial state of the movable rod is that the angle between the movable rod and the vertical plane is 15 degrees.

According to the cable reel for reducing pay-off inertia, the pressing brake part is provided with a plurality of groups; the pressing braking pieces are annularly arranged on the periphery of the fixed disc.

According to the cable reel of the present invention for reducing the pay-off inertia, the working surface of the pressing stopper, which contacts the inner wall of the right connection disc, is formed in an arc shape.

The invention provides a cable reel for reducing paying-off inertia, which comprises a reel body; the winding mechanism comprises a cylindrical winding part, a left connecting disc fixedly connected to the left end face of the winding part and a right connecting disc fixedly connected to the right end face of the winding part; the winding part is wound with a cable; the left connecting disc is of a disc-shaped shell structure with a connecting port on one end face; the active locking bin is concentrically and rotatably connected with one side of the active locking bin; the interior of the active locking bin is communicated with the interior of the right connecting disc; the driven locking bin is concentrically and rotatably connected with one side of the driven locking bin; the periphery of the upper part of the driving locking bin and the periphery of the lower part of the driven locking bin are both provided with movable openings, and the periphery of the lower part of the driving locking bin and the periphery of the lower part of the driven locking bin are provided with supporting frames; the driving locking bin and the driven locking bin respectively extend out of a movable rod through the movable opening; the movable rod is rotatable about the axis of the reel body; a cable output assembly is arranged between the two movable rods; the cable output assembly comprises a guide part provided with a lifting lug; the end part of the cable passes through the inner part of the lifting lug; a movable brake component is arranged inside the right connecting disc; when the cable is paid out, the cable is pulled; the movable rod rotates by a preset angle under the action of the pulling force of the cable; the rotating movable rod can cancel the braking of the movable braking assembly on the reel body, and the reel body can rotate; when the movable rod loses the pulling force of the cable; the movable rod is restored to the initial state; the swinging-back movable rod drives the movable brake assembly to brake the reel body. The invention can brake the reel driven by inertia to rotate in time, and avoid redundant cables from falling off the reel, thereby avoiding redundant workload and influencing working efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural diagram of the left and right connecting discs in FIG. 1; FIG. 3 is a block diagram of the movable brake assembly of the present invention; FIG. 4 is another state diagram of the movable brake assembly of the present invention; FIG. 5 is a block diagram of the planetary gear set of the present invention; FIG. 6 is a coupling diagram of the planetary gear set and the movable brake assembly; FIG. 7 is a state view after the movable lever is rotated; FIG. 8 is an initial state view before the movable lever is rotated; FIG. 9 is another state view of the guide of FIG. 1; FIG. 10 is a structural view of a first braking projection and a second braking projection; in the figure, 1-reel body, 2-supporting frame, 3-driving locking cabin, 4-driven locking cabin, 11-winding part, 12-left connecting plate, 13-right connecting plate, 14-first braking bulge, 15-second braking bulge, 121-through hole, 122-connecting port, 123-annular bulge, 31-movable opening, 32-movable rod, 61-connecting roller, 62-guiding part, 621-sleeve, 622-lifting lug, 623-roller mounting seat, 624-roller, 341-fixed disk, 342-connecting bulge, 343-sliding chute, 344-pressing braking part, 331-central wheel, 332-planetary wheel, 333-driving gear ring, 334-balancing weight and 335-connecting column.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1 and 2, the present invention provides a cable reel with reduced payoff inertia, comprising:

a reel body 1; the winding device comprises a cylindrical winding part 11, a left connecting disc 12 fixedly connected to the left end face of the winding part 11 and a right connecting disc 13 fixedly connected to the right end face of the winding part 11;

the winding part 11 is wound with a cable 5;

the left connecting disc 12 and the right connecting disc 13 are both disc-shaped shell structures, one end face of each shell structure is provided with a through hole 121, and the other end face of each shell structure is provided with a connecting port 122; a ring protrusion 123 for positioning is arranged at the connecting port 122;

the active locking bin 3 is of a disc-shaped shell structure and is arranged on the right side of the reel body 1; the active locking bin 3 is concentrically and rotatably connected with one side of the right connecting disc 13; when the active locking bin is installed, the annular protrusion 123 of the right connecting disc 13 is nested in the active locking bin 3; the interior of the active locking bin 3 is communicated with the interior of the right connecting disc 13;

the driven locking bin 4 is of a disc-shaped shell structure and is arranged on the left side of the reel body 1; the left connecting disc 12 is concentrically and rotatably connected with one side of the driven locking bin 4; the connection mode of the driven locking bin 4 and the left connecting disc 12 corresponds to the connection mode of the driving locking bin 3 and the right connecting disc 13;

the upper outer walls of the driving locking bin 3 and the driven locking bin 4 are provided with movable openings 31, and the periphery of the lower part of the driving locking bin and the driven locking bin is provided with a support frame 2; the driving locking bin 3 and the driven locking bin 4 respectively extend out of a movable rod 32 through the movable opening 31; the active lever 32 is rotatable about the central axis of the reel body 1.

Referring to fig. 1, a cable output assembly is arranged between the two movable rods 32;

the cable output assembly comprises a connecting roller 61 rotatably connected between the upper ends of the two movable rods 32 and a guide 62 mounted on the connecting roller 61;

the guide part 62 comprises a sleeve 621 slidably sleeved on the connecting roller 61 and a lifting lug 622 welded on the wall of the sleeve 621; the cable 5 passes through the inside of the lifting lug 622; when the cable 5 is fed out, the sleeve 621 reciprocates in the axial direction of the connection roller 61, thereby increasing the cable feeding effect.

Referring to fig. 9, the guide 62 of the present invention is preferably of yet another configuration; the guide part 62 comprises a sleeve 621 slidably sleeved on the connecting roller 61, a roller mounting seat 623 welded on the outer wall of the sleeve 621, and a roller 624 rotatably mounted on the roller mounting seat 623; the cable 5 passes between the roller 624 and the sleeve 621; the roller 624 reduces the friction between the guide 62 and the cable 5 when the cable 5 is output, changes sliding into rolling, and avoids the guide 62 from wearing the outer insulating layer of the cable 5 to some extent when the cable 5 is conveyed.

Referring to fig. 8, the initial state of the movable rod 32 is that an included angle a between the movable rod 32 and a vertical plane is 15 °;

referring to fig. 7, the range of the active lever 32 is such that the active lever 32 is rotated by a predetermined angle in one direction along the axis of the reel body 1. The predetermined angle is in the range of 0 DEG to 45 deg.

Referring to fig. 6, a reel braking mechanism is arranged in the active locking bin 3 and the right connecting disc 13;

when the active lever 32 is in the initial state, the reel braking mechanism brakes the reel body 1, and the reel body 1 does not rotate when subjected to external force;

when the movable lever 32 is rotated to a predetermined position, the reel braking mechanism cancels braking of the reel body 1, and the reel body 1 can normally rotate when subjected to external force (pulling force of the cable 5).

The reel braking mechanism comprises a planetary wheel set arranged in the active locking bin 3 and a movable braking component arranged in the right connecting disc 13;

referring to fig. 3 and 4, the movable brake assembly includes:

an annular fixed disk 341 fixed to the right connecting disk 13; the periphery of the fixed disk 341 is provided with a connecting bulge 342;

a pressing stopper 344 having one end movably hinged to the coupling protrusion 342 and the other end serving as a movable end contactable with an inner wall of the right coupling plate 13; an arc-shaped strip-shaped sliding groove 343 is formed in one side surface of the pressing brake 344;

when the movable rod 32 swings back to the initial state, the pressing brake piece 344 is in pressing contact with the inner wall of the right connecting disc 13;

when the movable lever 32 is rotated to a predetermined angular position, the pressing stopper 344 is out of contact with the inner wall of the right connecting plate 13.

Preferably, the pressing stopper 344 of the present invention is provided in plurality; the pressing braking pieces 344 are annularly arranged on the periphery of the fixed disc 341; the pressing braking parts 344 are arranged in a plurality of ways to increase the braking effect of the movable braking assembly, and meanwhile, the movable braking assembly cannot play a braking effect on the reel body 1 due to the fact that the movable braking assembly cannot be damaged by the single pressing braking part 344 is avoided.

In addition, the working surface on the pressing brake piece 344, which is in contact with the inner wall of the right connecting disc 13, is an arc surface; by setting the working surface of the pressing stopper 344 to be a curved surface, the contact area of the pressing stopper 344 with the inner wall of the right connection disc 13 is increased, and the braking effect of the pressing stopper 344 is further increased.

Referring to fig. 5 and 6, a planetary gear set for transmitting between the movable rod 32 and the movable brake assembly is arranged in the active locking bin 3; the planetary gear set includes:

an annular center wheel 331; the upper end of the central wheel 331 is fixedly connected with the movable rod 32;

the lower end of the central wheel 331 is rotatably connected with a balancing weight 334; the connection position of the balancing weight 334 and the central wheel 331 is positioned on the extension line of the movable rod 32; the weight 334 provides the driving force for the movable rod 32 to return to the initial state;

a plurality of planet wheels 332 circularly arranged on the periphery of the central wheel 331; the planet gear 332 is fixedly arranged on the active locking bin 3, and the planet gear 332 is fixed in position but can rotate; a plurality of planet wheels 332 are in meshed transmission with a central wheel 331;

referring to fig. 6, a driving ring gear 333 is provided at the periphery of a plurality of the planet gears 332; a connecting column 335 is fixedly connected to one end face, away from the central wheel 331, of the driving gear ring 333; the connecting column 335 is slidably mounted in the sliding groove 343; a plurality of planet wheels 332 are in meshed transmission with a driving gear ring 333. The planetary gear set is used as a transmission component for connecting the movable rod 32 and the movable brake component, and the advantages that the planetary gear set is neutral, stress is balanced, and transmission is more stable are achieved.

Referring to fig. 3 and 6, when the movable rod 32 is rotated by an external force, the movable rod 32 drives the central wheel 331 to rotate (the direction of rotation of the central wheel 331 is counterclockwise); the central wheel 331 drives the planet wheel 332 to rotate (the planet wheel 332 rotates clockwise); the planet gear 332 drives the driving gear ring 333 to rotate (the driving gear ring 333 rotates clockwise); the driving gear ring 333 drives the connecting column 335 to slide in the sliding groove 343; under the matching of the connecting column 335 and the sliding groove 343, the pressing brake 344 gradually shrinks and is separated from the bin wall of the right connecting disc 13; the contracted pressing brake piece 344 cancels the braking effect on the reel body 1.

Referring to fig. 4 and 6, when the external force is lost, the movable rod 32 is moved; the balancing weight 334 drives the central wheel 331 to rotate clockwise under the action of self gravity; the central wheel 331 drives the planet wheel 332 to rotate (the planet wheel 332 rotates anticlockwise); the planet gear 332 drives the driving gear ring 333 to rotate (the driving gear ring 333 rotates anticlockwise); the driving gear ring 333 drives the connecting column 335 to slide in the sliding groove 343; under the matching of the connecting column 335 and the sliding groove 343, the pressing brake 344 gradually expands and is in pressing contact with the bin wall of the right connecting disc 13; the expanded press brake 344 produces a braking effect on the right connecting disc 13 and thus on the spinning reel.

It is further explained that the interior of the driven locking bin 4 and the left connecting disc 12 are also provided with reel braking mechanisms, and the stress balance of the movable rod 32 is realized through two groups of symmetrically arranged reel braking mechanisms, so that the operation of the device is more facilitated.

Referring to fig. 7, in the present example, when the cable 5 is pulled;

the guide 62 is subjected to a tensile force F in the transverse direction₁(the tensile force F₁Caused by friction F between the guide 62 and the cable) and a vertical cable tension F₂Under the action of the resultant force F, the resultant force F drives the movable rod 32 to rotate (at this time, F is much larger than the gravity g of the counterweight 334), and the rotation of the movable rod 32 drives the planetary gear set to start transmission; the planetary gear set drives the compression brake 344 to gradually contract and to be separated from contact with the inner wall of the right connecting disc 13; the reel body 1In the unbraked state and starts to rotate under the action of the pulling force of the cable 5.

Referring to fig. 8, when the reel body 1 is driven to rotate by its own inertia due to the cable 5 being drawn out at too high a speed;

the cable 5 at the guide 62 is in a slack state since the reel body 1 is driven to rotate by its own inertia; the guide 62 is subjected only to a weakened tension force F₁Effect (cable slack leads to a reduction of the friction force F and thus to a pulling force F₁Decrease; the cable 5 is in a relaxed state, resulting in a cable tension F₂Disappearance); the guiding element 62 swings back to the initial state under the action of the gravity g of the weight 334 (the gravity g of the weight 334 is much larger than the weakened pulling force F)₁) (ii) a The swinging back of the movable rod 32 drives the planetary wheel set to start reverse transmission; the planetary gear set drives the pressing brake 344 to gradually expand and contact with the inner wall of the right connecting disc 13; the reel body stops inertial rotation by the braking force generated by the pressing brake 344.

Referring to fig. 10, it is preferable that the inner wall of the right connecting disc 13 of the present invention is provided with a plurality of first braking protrusions 14 for increasing braking effect; the working surface of the pressing stopper 344 is provided with a plurality of second stopper protrusions 15. During braking, after the pressing braking piece 344 is opened, the plurality of first braking protrusions 14 and the plurality of second braking protrusions 15 are inserted into each other, so that the purpose of increasing the braking effect of the pressing braking piece 344 is achieved.

In summary, the present invention provides a cable reel for reducing payoff inertia, comprising a reel body; the winding mechanism comprises a cylindrical winding part, a left connecting disc fixedly connected to the left end face of the winding part and a right connecting disc fixedly connected to the right end face of the winding part; the winding part is wound with a cable; the left connecting disc is of a disc-shaped shell structure with a connecting port on one end face; the active locking bin is concentrically and rotatably connected with one side of the active locking bin; the interior of the active locking bin is communicated with the interior of the right connecting disc; the driven locking bin is concentrically and rotatably connected with one side of the driven locking bin; the periphery of the upper part of the driving locking bin and the periphery of the lower part of the driven locking bin are both provided with movable openings, and the periphery of the lower part of the driving locking bin and the periphery of the lower part of the driven locking bin are provided with supporting frames; the driving locking bin and the driven locking bin respectively extend out of a movable rod through the movable opening; the movable rod is rotatable about the axis of the reel body; a cable output assembly is arranged between the two movable rods; the cable output assembly comprises a guide part provided with a lifting lug; the end part of the cable passes through the inner part of the lifting lug; a movable brake component is arranged inside the right connecting disc; when the cable is paid out, the cable is pulled; the movable rod rotates by a preset angle under the action of the pulling force of the cable; the rotating movable rod can cancel the braking of the movable braking assembly on the reel body, and the reel body can rotate; when the movable rod loses the pulling force of the cable; the movable rod is restored to the initial state; the swinging-back movable rod drives the movable brake assembly to brake the reel body. The invention can brake the reel driven by inertia to rotate in time, and avoid redundant cables from falling off the reel, thereby avoiding redundant workload and influencing working efficiency.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.