CN111320039A - Self-tightening paying-off device - Google Patents

Abstract

The present invention proposes a self-tightening wire pay-off, comprising a casing provided with a wire outlet, a rotating shaft disposed in the casing, and a wire reel arranged on the rotating shaft for winding wires. There is a friction sleeve, the friction force between the friction sleeve and the rotating shaft is greater than the friction force between the friction sleeve and the spool, and there is an elasticity between the friction sleeve and the spool to pull the spool to rotate after stopping the pay-off It is used to solve the technical problem that the wires on the spool are loose and easily twisted together after the inertial rotation of the spool.

Description

A self-tightening pay-off device

technical field

The present invention relates to a self-tightening wire pay-off device.

Background technique

The existing wire reel usually has a wire reel for winding the wire. The wire is pulled out by pulling the wire, and the wire reel is also rotated while pulling the wire. After stopping pulling the wire, the wire reel is in its own Continue to rotate under inertia, but the wires on the spool are loose and messy, and the loose and messy wires are easily twisted together, and the next payout cannot be completed.

SUMMARY OF THE INVENTION

The present invention proposes a self-tightening pay-off device to solve the technical problem that the wires on the spool are loose and easily twisted together after the inertial rotation of the spool.

The technical solution of the present invention is achieved as follows: a self-tightening wire pay-off device includes a casing provided with a wire outlet, a rotating shaft disposed in the casing, and a wire reel disposed on the rotating shaft for winding wires, the said There is a friction sleeve between the rotating shaft and the spool, the friction between the friction sleeve and the rotating shaft is greater than the friction between the friction sleeve and the spool, and there is a friction sleeve between the friction sleeve and the spool after stopping the pay-off. The elastic piece that pulls the spool around.

Further, the elastic member is a torsion spring, one of the spring legs of the torsion spring is fixedly connected to the friction sleeve, and the other spring leg is fixedly connected to the wire reel.

Further, the casing includes a lower casing and an upper cover that are mutually buckled and fixedly connected by fixing bolts.

Further, the upper cover is provided with an elastic wire outlet, and the elastic wire outlet is provided with a wire outlet with a diameter not larger than the diameter of the wire.

Further, the lower casing is provided with a handle that is convenient for the operator to hold.

Further, the shell is made of aluminum alloy

By adopting the above technical solution, the beneficial effects of the present invention are as follows: when the self-tightening and pay-off device of the present invention stops pulling out the wire, the wire reel will continue to rotate with its own inertia, and at this time, driven by the reverse rotation of the torsion spring, The spool is rotated to tighten the loose wires on the spool, which prevents the slack wires on the spool from being twisted together, and also prevents the wires on the spool from falling off easily.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a sectional view of the structure of the self-tightening and pay-off device of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Embodiment 1 of a self-tightening pay-off device, as shown in FIG. 1 , includes a casing 1 provided with a wire outlet 9, a rotating shaft 2 disposed in the casing, and a wire reel 3 disposed on the rotating shaft for winding wires , There is a friction sleeve 4 between the rotating shaft and the reel, the friction between the friction sleeve and the rotating shaft is greater than that between the friction sleeve and the reel, and there is a friction sleeve between the friction sleeve and the reel to pull the line after stopping the pay-off The elastic member 5 of the disk rotation.

Embodiment 2 of a self-tightening pay-off device, as shown in Figure 1, includes a casing 1 provided with a wire outlet, a rotating shaft 2 disposed in the casing, and a wire reel 3 disposed on the rotating shaft for winding wires, There is a friction sleeve 4 between the rotating shaft and the spool, the friction between the friction sleeve and the rotating shaft is greater than that between the friction sleeve and the spool, and there is a friction sleeve between the friction sleeve and the spool to pull the spool after stopping the pay-off. The rotating elastic member 5 is a torsion spring, one of the spring legs of the torsion spring is fixedly connected with the friction sleeve, and the other spring leg is fixedly connected with the bobbin.

Embodiment 3 of a self-tightening pay-off device, as shown in Figure 1, includes a casing 1 provided with a wire outlet, a rotating shaft 2 disposed in the casing, and a wire reel 3 disposed on the rotating shaft for winding wires, There is a friction sleeve 4 between the rotating shaft and the spool, the friction between the friction sleeve and the rotating shaft is greater than that between the friction sleeve and the spool, and there is a friction sleeve between the friction sleeve and the spool to pull the spool after stopping the pay-off. The rotating elastic member 5, the elastic member is a torsion spring, one of the spring legs of the torsion spring is fixedly connected to the friction sleeve, and the other spring leg is fixedly connected to the wire reel. Cover 7.

Embodiment 4 of a self-tightening pay-off device, as shown in Figure 1, includes a casing 1 provided with a wire outlet, a rotating shaft 2 disposed in the casing, and a wire reel 3 disposed on the rotating shaft for winding wires, There is a friction sleeve 4 between the rotating shaft and the spool, the friction between the friction sleeve and the rotating shaft is greater than that between the friction sleeve and the spool, and there is a friction sleeve between the friction sleeve and the spool to pull the spool after stopping the pay-off. The rotating elastic member 5, the elastic member is a torsion spring, one of the spring legs of the torsion spring is fixedly connected to the friction sleeve, and the other spring leg is fixedly connected to the wire reel. The upper cover 7 is provided with an elastic wire outlet 8, and the elastic wire outlet is provided with a wire outlet 9 whose diameter is not larger than the diameter of the wire.

Embodiment 5 of a self-tightening pay-off device, as shown in Figure 1, includes a casing 1 provided with a wire outlet, a rotating shaft 2 disposed in the casing, and a wire reel 3 disposed on the rotating shaft for winding wires, There is a friction sleeve 4 between the rotating shaft and the spool, the friction between the friction sleeve and the rotating shaft is greater than that between the friction sleeve and the spool, and there is a friction sleeve between the friction sleeve and the spool to pull the spool after stopping the pay-off. The rotating elastic member 5, the elastic member is a torsion spring, one of the spring legs of the torsion spring is fixedly connected to the friction sleeve, and the other spring leg is fixedly connected to the wire reel. The upper cover 7 is provided with an elastic outlet nozzle 8, which is provided with the elastic outlet nozzle, and the lower casing is provided with a handle 10 which is convenient for the operator to hold, and the outer casing is made of aluminum alloy.

In other embodiments, the elastic member may also be a coil spring.

In other embodiments, the elastic member may also be an elastic rubber band that is wound around the friction sleeve, one end is fixedly connected to the friction sleeve, and the other end is fixedly connected to the wire reel.

When in use, the wire is pulled out from the wire outlet 9. At this time, as the wire is pulled out, the wire reel 3 is rotated. After the wire reel 3 drives the torsion spring to rotate at a certain angle, the torsion force of the torsion spring is greater than that between the friction sleeve and the rotating shaft. After the friction force, the friction sleeve rotates with the spool on the rotating shaft; when the wire stops pulling out, the spool will continue to rotate with its own inertia. At this time, driven by the reversal of the torsion spring, the spool rotates to make The slack wires on the reel are tightened, which prevents the slack wires on the reel from being tangled together, and also prevents the wires on the reel from falling off easily; the outlet nozzle 8 is made of elastic material, and the diameter of the outlet 9 is not larger than the diameter of the wire, so the wire There is a certain frictional force between the wire outlet 9 and the wire outlet 9. When the pulling force of the torsion spring is equal to the friction force, the torsion spring stops reversing. At this time, the wire between the wire outlet 9 and the wire reel is tightened. to avoid slack and twisting of wires.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (6)

1. A self-tightening pay-off device, comprising a casing provided with a wire outlet, a rotating shaft arranged in the casing, a wire reel for winding wires on the rotating shaft, is characterized in that the rotating shaft and the wire reel are There is a friction sleeve between the friction sleeves, the friction force between the friction sleeve and the rotating shaft is greater than the friction force between the friction sleeve and the spool, and there is a friction sleeve between the friction sleeve and the spool to pull the spool to rotate after stopping the pay-off. elastic parts. 2 . The self-tightening wire pay-off device according to claim 1 , wherein the elastic member is a torsion spring, one of which is fixedly connected to the friction sleeve, and the other of which is fixed to the spool. 3 . connect. 3 . The self-tightening wire pay-off device according to claim 2 , wherein the casing comprises a lower casing and an upper cover that are fastened to each other and fixedly connected by fixing bolts. 4 . 4 . The self-tightening wire pay-off device according to claim 3 , wherein the upper cover is provided with an elastic wire outlet, and the elastic wire outlet is provided with a wire outlet with a diameter not larger than the diameter of the wire. 5 . 5 . The self-tightening and pay-off device according to claim 4 , wherein the lower shell is provided with a handle which is convenient for the operator to hold. 6 . 6 . The self-tightening pay-off device according to claim 5 , wherein the casing is made of aluminum alloy. 7 .

Images