CN219546406U - Passive pay-off device - Google Patents

Abstract

The utility model relates to a passive paying-off device which comprises a base, a rotary support roller way and a wire spool, wherein at least two rotary support roller ways are arranged on the base in a parallel arrangement mode, and the rotary support roller way can support the lower edge of a spool body of the wire spool around which a cable to be paid-off is wound, so that the wire spool finishes paying-off operation in a mode of rotating around a roll shaft of the wire spool above the rotary support roller way; the two sides of the rotary support roller way are provided with rotary components which can be in contact connection with the two axial ends of the wire spool in an adjustable mode, and the rotary components can drive the wire spool to rotate under the condition that the rotary components are in contact with the wire spool. The utility model can effectively prevent the cable from breaking or deforming in the paying-off process, and is suitable for paying-off operation of cable reels with various sizes.

Description

Passive pay-off device

Technical Field

The utility model relates to the technical field of electric power construction, in particular to a passive paying-off device.

Background

The cable spool is a structural member product for receiving and transporting finished cables. When the cable is required to be laid, constructors need to install the cable spool on paying-off equipment in advance, so that when the cable is required to be paid off, the constructors apply traction force to the cable spool to pull the cable spool to directionally rotate on the paying-off equipment, and then the paying-off operation of the cable can be realized. The existing cable reel mainly comprises a winding roller and round baffles arranged at two ends of the winding roller, and a through shaft hole for inserting a paying-off device is formed in an axial area of the winding roller, so that the limited cable reel can rotate on the paying-off device to realize paying-off or winding rotation, and therefore the paying-off device is mainly used for rotating and supporting the cable reel, and the cable reel can be in a passive rotation state during paying-off. At present, another kind of electric cable that still exists lays often uses pay off rack, and its structure mainly comprises two chassis, has two roller on the chassis, places the winding drum on the chassis through drawing electric cable, can make the chassis roll on the roller to reach the unwrapping wire effect, need draw electric cable when carrying out the unwrapping wire, make the winding drum roll on the chassis roller and carry out the unwrapping wire, this kind of mode electric cable can receive great pulling force, has the harm to electric cable. Especially when realizing the unwrapping wire operation of cable wire reel through the rotation takes place for the driving roller, the contact surface of this kind of roller and the side edge of the baffle of cable wire reel is very little, and the running roller can not effectively drive the cable wire reel to take place the rotation after using certain time.

The existing passive paying-off method for paying off by pulling the cable is easy to cause cable deformation and breakage due to overlarge tensile force of the cable, the paying-off equipment with the active paying-off driving structure needs a supporting frame or a device to be in an environment capable of being connected with a power supply, but the conventional outdoor construction environment is generally not provided with the power supply equipment, so that the using convenience of the device is greatly reduced. In addition, the existing paying-off device can only be used as a wiring auxiliary device of a cable spool with one size, and has poor adaptability.

Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, as the inventors studied numerous documents and patents while the present utility model was made, the text is not limited to details and contents of all that are listed, but it is by no means the present utility model does not have these prior art features, the present utility model has all the prior art features, and the applicant remains in the background art to which the rights of the related prior art are added.

Disclosure of Invention

The utility model aims to provide a passive paying-off device which can effectively prevent a cable from being broken or deformed in the paying-off process and is suitable for cable reels of various sizes, so as to solve the problems that the existing inserting shaft paying-off device is easy to cause cable damage in the cable pulling process and the contact area of bottom supporting paying-off equipment is small and effective rotation of the cable reels cannot be guaranteed.

The technical scheme adopted by the utility model is as follows: the passive paying-off device comprises a base, a rotary supporting roller way and a wire spool, wherein at least two rotary supporting roller ways are arranged on the base in a parallel arrangement mode, and the rotary supporting roller ways can support the lower edge of a spool body of the wire spool around which a cable to be paid-off is wound, so that the wire spool finishes paying-off operation in a mode of rotating around a roll shaft of the wire spool above the rotary supporting roller ways; the two sides of the rotary support roller way are provided with rotary components which can be in contact connection with the two axial ends of the wire spool in an adjustable mode, and the rotary components can drive the wire spool to rotate under the condition that the rotary components are in contact with the wire spool.

According to a preferred embodiment, the rotary support roller way comprises a clamping groove body, a roller and a position adjusting piece, wherein the roller is inserted into a through main groove of the clamping groove body through a rotating shaft, and a fixed wheel of the roller is positioned and installed in the through main groove through the rotating shaft which is in limiting insertion connection; the driving wheel of the roller is connected with the position adjusting piece through a rotating shaft, so that the driving wheel can reciprocate in the penetrating main groove along with the position adjusting piece.

According to a preferred embodiment, the side wall of the through main groove constructed by the clamping groove body is provided with a through auxiliary groove penetrating through the side wall, and the grooving direction of the through auxiliary groove is parallel to the grooving direction of the through main groove; the positioning piece is arranged in the through auxiliary groove in a limiting mode in a mode of being capable of driving the driving wheel arranged in the through main groove to conduct directional translation.

According to a preferred embodiment, a plurality of limit grooves are formed in the lower side wall of the through auxiliary groove at intervals, and the position adjusting member is adjustably partially inserted into the limit grooves so as to limit the position of the position adjusting member in the through auxiliary groove, thereby adjustably positioning the driving wheel in the through main groove.

According to a preferred embodiment, the positioning member comprises a limiting block, an elastic limiting member and a positioning guide rail mechanism, wherein the limiting block is detachably and partially inserted into the limiting groove, and the surface, away from the limiting groove, of the limiting block is provided with the elastic limiting member capable of limiting the movement of the limiting block in the axial direction.

According to a preferred embodiment, the end of the elastic limiting piece, which is far away from the limiting piece, is further connected with the positioning guide rail mechanism arranged on the upper side wall of the through auxiliary groove, so that the movable direction of the limiting piece when the limiting piece is pulled out of the limiting groove is limited.

According to a preferred embodiment, the two sets of rollers of the two rotary support roller tables respectively movably support the spool body of the spool, so that the spool can rotate on the rollers; the same driving wheel of the rotary support roller way can move along the slotting direction in the penetrating main slot, so that the distance between the driving wheel and the fixed wheel is adjusted.

According to a preferred embodiment, the rotating assembly comprises a supporting piece, a rotating disc, a rotating outer tube, a rotating inner rod and a rotating limiting piece, wherein the supporting piece is supported on a base, and the rotating outer tube which coincides with the axis of the wire spool is connected to one end of the supporting piece far away from the base in a rotating way; the rotating outer tube is internally inserted with the rotating inner rod, and one end, close to the wire spool, of the rotating inner rod is provided with the rotating disk parallel to the end face of the wire spool.

According to a preferred embodiment, the end of the rotating inner rod inserted into the rotating outer tube is provided with the rotating limiting piece, and the rotating limiting piece can limit the relative position between the rotating inner rod and the rotating outer tube according to the elasticity of the rotating inner rod in the axial direction, so that the rotating inner rod can abut the rotating disc on the end face of the wire winding disc.

According to a preferred embodiment, one end of the rotating inner rod connected with the rotating limiting piece is further provided with a clamping rod penetrating through the rotating outer tube, the tube wall of the rotating outer tube is provided with a limiting strip hole for the clamping rod to axially translate along with the rotating inner rod, and one end, close to the rotating limiting piece, of the limiting strip hole is further communicated with an L-shaped positioning hole capable of limiting the position of the rotating inner rod in the rotating outer tube.

The beneficial effects of the utility model are as follows:

according to the utility model, the moving wheel and the matching positioning piece are arranged, so that the moving wheel can reciprocate on a specific straight line according to requirements to change the distance between the moving wheel and the fixed wheel, and the moving wheel and the fixed wheel can jointly support wire reels of different sizes stably, so that the wire reels of different sizes can only rotate around the axis of the moving wheel and the fixed wheel.

According to the utility model, the rotating disc capable of being fully in surface contact with the two axial end surfaces of the wire spool is arranged, so that the rotating assembly has larger contact area and more effective power transmission relative to the rotating mode of driving the wire spool by rotating the driving roller, and the wire spool can be effectively and conveniently driven to rotate in a paying-off manner under the control of an operator under the condition that the roller provides a supporting effect on the wire spool and no transmission loss exists. In addition, the rotating assembly provided by the utility model can avoid the defects that the cable needs to be pulled to cause cable deformation and exercise when the existing paying-off equipment is used for paying-off operation, and the main driving of the passive paying-off is that the winding reel rotates to release the wound cable instead of the cable is pulled to pull the winding reel to rotate, so that the form of the cable is protected as much as possible.

Drawings

FIG. 1 is a schematic illustration of a preferred passive pay-off device according to the present utility model;

FIG. 2 is a side view of a rotary support roller table of a preferred passive pay-off device according to the present utility model;

FIG. 3 is a top view of a rotary support roller table of a preferred passive pay-off device according to the present utility model;

FIG. 4 is a schematic view of a partial enlarged structure of a rotary support roller table of a preferred passive pay-off device according to the present utility model;

FIG. 5 is a schematic view of a partial enlarged construction of a rotating assembly of a preferred passive payout device according to the present utility model;

fig. 6 is a schematic view of the deployment of a rotating outer tube of a preferred passive payout device according to the present utility model.

List of reference numerals

1: a base; 2: rotating the supporting roller way; 3: a wire spool; 4: a rotating assembly; 21: a clamping groove body; 22: a roller; 23: a positioning member; 41: a support; 42: a rotating disc; 43: rotating the outer tube; 44: rotating the inner rod; 45: rotating the limiting piece; 46: a clamping rod; 47: a crank; 211: penetrating through the main groove; 212: penetrating through the auxiliary groove; 213: a limit groove; 221: a fixed wheel; 222: a driving wheel; 231: a limiting block; 232: an elastic limiting piece; 233: a positioning guide rail mechanism; 431: limiting strip holes; 432: l-shaped positioning holes.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

The technical solution provided by the present utility model will be described in detail by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model. In some instances, some embodiments are not described or described in detail as such, as may be known or conventional in the art.

Furthermore, features described herein, or steps in all methods or processes disclosed, may be combined in any suitable manner in one or more embodiments in addition to mutually exclusive features and/or steps. It will be readily understood by those skilled in the art that the steps or order of operation of the methods associated with the embodiments provided herein may also be varied. Any order in the figures and examples is for illustrative purposes only and does not imply that a certain order is required unless explicitly stated that a certain order is required.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "connected" and "coupled" as used herein, where appropriate (without making up a paradox), include both direct and indirect connections (couplings).

The following detailed description refers to the accompanying drawings.

Example 1

The utility model provides a passive paying-off device which comprises a base 1, a rotary support roller way 2, a wire spool 3 and a rotary assembly 4.

According to a specific embodiment shown in fig. 1, a rotary support roller table 2 capable of supporting a spool 3 is provided on a base 1. The rotation support roller way 2 is used for supporting wire reels 3 of different sizes in a manner of adjusting the limit width of the rotation support roller way 2, and the rotation position of the wire reels 3 can be limited, so that the wire reels 3 can rotate around the axis of the rotation support roller way 2. At least two rotation support roller ways 2 are arranged on the base 1 at intervals, so that the two parallel rotation support roller ways 2 can support the lower edge of the wire spool 3 wound with the cable to be paid off, and the wire spool 3 can complete paying off operation in a rotation mode of winding a roll shaft of the wire spool above the rotation support roller ways 2. The base 1 is also provided with a rotating component 4 arranged on the outer side of the rotating support roller way 2. The rotating assembly 4 can be in adjustable contact connection with the axial two end surfaces of the wire spool 3, so that the wire spool 3 is driven to synchronously rotate along with the rotating assembly 4 through friction force in a contact state of the rotating assembly 4 and the wire spool 3, namely, the rotating assembly 4 can drive the wire spool 3 to rotate under the condition of contacting with the wire spool 3.

Preferably, the rotary support roller way 2 comprises a clamping groove body 21, a roller 22 and a positioning piece 23. As shown in fig. 2, 3 and 4, the roller 22 is rotatably inserted into the chuck body 21 by a rotation shaft coinciding with the wheel body axis thereof. Specifically, the roller 22 includes a fixed roller 221 and a movable roller 222. The stator 221 is rotatably positioned in the through main groove 211 by being inserted into the groove wall of the through main groove 211 in a limited manner, so that the position of the stator 221 in the through main groove 211 is defined, and the stator 221 can rotate around the axis thereof in the through main groove 211. Preferably, both axial ends of the driving wheel 222 of the roller 22 are connected to the positioning member 23 provided in the groove wall penetrating the main groove 211 by a rotation shaft, so that the driving wheel 222 can reciprocate in translation within the penetrating main groove 211 following the positioning member 23. Specifically, the clamping groove body 21 is constructed such that a side wall penetrating the main groove 211 is provided with a penetrating auxiliary groove 212 penetrating the side wall, and the grooving direction penetrating the auxiliary groove 212 is parallel to the grooving direction penetrating the main groove 211. The positioning member 23 is limitedly installed in the through auxiliary groove 212 in such a manner as to drive the driving wheel 222 provided in the through main groove 211 to perform directional translation. The positioning member 23 is capable of reciprocating translation in the through auxiliary groove 212 so that it can position the moving wheel 222 connected thereto in the groove body of different sections through the main groove 211, thereby changing the distance between the moving wheel 222 and the fixed wheel 221, so that the moving wheel 222 and the fixed wheel 221 which are parallel to each other can change the distance between the moving wheel 222 and the fixed wheel 221 according to the size of the disk body of the wire spool 3, and further so that the positioning of the moving wheel 222 and the fixed wheel 221 which are matched with each other supports the wire spool 3. As shown in fig. 2, the driving wheel 222 and the fixed wheel 221 are in contact with the edge below the side of the spool 3 to support the spool 3, and the driving wheel 222 and the fixed wheel 221 are symmetrically disposed at two sides of the spool 3, so that they can limit the spool 3 while supporting the spool 3. Further preferably, the driving wheel 222 and the fixed wheel 221 can both rotate around their own axes, so that when the wire spool 3 rotates, the driving wheel 222 and the fixed wheel 221 can always limit the position of the wire spool 3 on the rotation support roller way 2, and the line contact rotation connection between the driving wheel 222, the fixed wheel 221 and the spool body of the wire spool 3 is realized. The fixed wheel 221 and the moving wheel 222 can also be used as a main supporting structure of the wire spool 3, and the three parts can be connected in a rotating way by changing the contact position, so that the wire spool 3 can synchronously rotate under the action of a small driving force of the rotating assembly 4.

Preferably, a plurality of limiting grooves 213 are spaced apart on the lower sidewall of the through sub-groove 212. The positioning members 23 are adjustably partially inserted into different ones of the limiting slots 213 to define the position of the positioning members 23 in the through-going secondary slots 212 to adjustably position the driving wheel 222 in different segment slot cavities through the primary slot 211. Specifically, the two sets of rollers 22 of the two rotary support roller tables 2 respectively movably support the disk body of the wire spool 3, so that the wire spool 3 can rotate on the rollers 22. Preferably, the moving wheel 222 of the same rotary support roller table 2 can move in the slotting direction in the penetrating main slot 211, so as to adjust the distance between the moving wheel 222 and the fixed wheel 221, so as to meet the stable support of the wire reels 3 with different-sized reels, so as to limit that the wire reels can only rotate on the rotary support roller table 2.

As shown in fig. 4, the positioning member 23 includes a stopper 231, an elastic stopper 232, and a positioning rail mechanism 233. The stopper 231 is detachably partially inserted in the stopper groove 213. Preferably, the surface of the stopper 231 remote from the stopper groove 213 is provided with an elastic stopper 232 capable of restricting movement thereof in the axial direction. Preferably, the end of the elastic stopper 232 remote from the stopper 231 is also connected with a positioning rail mechanism 233 installed on the upper sidewall of the through sub-slot 212 such that the positioning rail mechanism 233 defines a movable direction of the stopper 231 when being pulled out of the stopper slot 213. Preferably, the elastic limiting member 232 includes a telescopic rod of which the length can be changed and a limiting spring sleeved on the telescopic rod, so that the elastic limiting member 232 can limit the distance between the limiting member 231 and the positioning guide rail mechanism 233, and thus when the positioning guide rail mechanism 233 moves to a specific position, the limiting member 231 is partially inserted into the limiting groove 213, thereby limiting the positioning guide rail mechanism 233, the elastic limiting member 232 and the directional translation thereof, and thus realizing the position limitation of the driving wheel 222. Preferably, when the wire spool 3 of other sizes needs to be matched, the operator lifts the limiting block 231 upwards to enable the limiting block 231 to drop out of the limiting groove 213, so that the positioning piece 23 can reciprocate in a specific direction under the limitation of the positioning guide rail mechanism 233. According to the utility model, the moving wheel 222 and the matching positioning piece 23 are arranged, so that the moving wheel 222 can reciprocate on a specific straight line according to requirements, the distance between the moving wheel 222 and the fixed wheel 221 is changed, the moving wheel 222 and the fixed wheel 221 can jointly support wire reels 3 with different sizes, and the wire reels 3 with different sizes can only rotate around the axes of the moving wheel 222 and the fixed wheel 221.

As shown in fig. 5 and 6, the rotating assembly 4 includes a support 41, a rotating disk 42, a rotating outer tube 43, a rotating inner rod 44, and a rotating limiter 45. Preferably, the support 41 is supported on the base 1, and a rotating outer tube 43 coincident with the axis of the spool 3 is rotatably connected to an end of the support 41 remote from the base 1. Further preferably, a rotating inner rod 44 is interposed in the rotating outer tube 43, and one end of the rotating inner rod 44 near the spool 3 is provided with a rotating disk 42 parallel to the end surface of the spool 3. Specifically, the rotating disc 42 is capable of axially translating in the rotating outer tube 43 following the rotating inner rod 44, so that the rotating disc 42 adjustably contacts with the end surface of the wire spool 3, thereby driving the wire spool 3 to rotate. Preferably, the surface of the rotating disc 42 facing the wire spool 3 enhances friction between the surface of the rotating disc 42 and the end surface of the wire spool 3 in a manner of arranging a plurality of limiting blocks made of silica gel materials, so that the wire spool 3 is effectively driven to rotate. According to the utility model, the rotating disc 42 which can be fully in surface contact with the two axial end surfaces of the wire spool 3 is arranged, so that the rotating assembly 4 has a larger contact area and more effective power transmission in terms of the rotating mode of driving the wire spool 3 by rotating relative to the driving roller 22, and the rotating assembly 4 without transmission loss can effectively and conveniently drive the wire spool 3 to perform paying-off rotation under the control of an operator under the condition that the roller 22 provides a supporting effect on the wire spool 3.

Preferably, one end of the rotating inner rod 44 inserted into the rotating outer tube 43 is provided with a rotation limiter 45, and the rotation limiter 45 can limit the relative position between the rotating inner rod 44 and the rotating outer tube 43 according to its elasticity in the axial direction, so that the rotating inner rod 44 can abut the rotating disc 42 against the end face of the wire spool 3. Specifically, the rotation limiter 45 is provided between the insertion end of the rotation inner rod 44 into the rotation outer tube 43 and the blocking end face of the rotation outer tube 43, so that it can limit the length of the rotation inner rod 44 inserted into the rotation outer tube 43. Further preferably, one end of the rotation inner rod 44 connected to the rotation stopper 45 is further provided with a click rod 46 penetrating through the wall of the rotation outer tube 43. Preferably, the detent lever 46 is provided so as to coincide with one diameter direction of the axial cross section of the rotating outer tube 43. Preferably, a limiting bar hole 431 for the clamping rod 46 to axially translate along with the rotating inner rod 44 is formed in the pipe wall of the rotating outer pipe 43, and one end, close to the rotating limiting piece 45, of the limiting bar hole 431 is also communicated with an L-shaped positioning hole 432 capable of limiting the position of the rotating inner rod 44 in the rotating outer pipe 43. The detent lever 46 can define a linked state of rotation about the axis between the rotation inner lever 44 and the rotation outer tube 43, so that the rotation inner lever 44 can rotate in synchronization with the rotation outer tube 43. Preferably, the L-shaped positioning hole 432 is provided in order to separate the rotary inner rod 44 from the wire spool 3 by pulling the detent rod 46 axially to deeply rotate the rotary inner rod 44 into the tube of the outer tube 43 when the rotary inner rod 42 is not required to be brought into contact with the wire spool 3 to rotate the wire spool 3, and to limit the state in which the rotary inner rod 44 deeply rotates into the tube of the outer tube 43 by rotating the detent rod 46 in such a manner that the detent rod 46 is caught in the L-shaped positioning hole 432, so that the rotary inner rod 42 maintains the separated state from the wire spool 3, thereby facilitating replacement and taking-out of the wire spool 3. Preferably, a crank 47 is also attached to the end of the rotating outer tube 43 remote from the rotating inner rod 44. An operator can rotate the rotating outer tube 43 in synchronism by controlling the rotation of the crank 47.

The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the utility model is defined by the claims and their equivalents. Throughout this document, the word "preferably" is used in a generic sense to mean only one alternative, and not to be construed as necessarily required, so that the applicant reserves the right to forego or delete the relevant preferred feature at any time.

Claims (10)

1. The passive paying-off device comprises a base (1), a rotary support roller way (2) and a wire spool (3), and is characterized in that at least two rotary support roller ways (2) are arranged on the base (1) in a parallel mode, and the rotary support roller way (2) can support the lower edge of a spool body of the wire spool (3) around which a cable to be paid-off is wound, so that the wire spool (3) finishes paying-off operation in a mode of autorotation around a roll shaft of the spool body above the rotary support roller way (2);

the two sides of the rotary support roller way (2) are provided with rotary components (4) which can be adjustably contacted and connected with the two axial ends of the wire spool (3), and the rotary components (4) can drive the wire spool (3) to rotate under the condition of contacting with the wire spool (3).

2. A passive pay-off device as claimed in claim 1, characterized in that the rotary support roller (2) comprises a clamping groove body (21), rollers (22) and a positioning member (23), wherein,

the roller (22) is inserted into a through main groove (211) of the clamping groove body (21) through a rotating shaft, and a fixed wheel (221) of the roller (22) is positioned and installed in the through main groove (211) through a rotating shaft which is in limiting insertion connection;

the driving wheel (222) of the roller (22) is connected with the positioning piece (23) through a rotating shaft, so that the driving wheel (222) can reciprocate and translate in the penetrating main groove (211) along with the positioning piece (23).

3. The passive paying-off device according to claim 2, wherein a side wall of the through main groove (211) is formed by the clamping groove body (21), a through auxiliary groove (212) penetrating through the side wall is formed on the side wall, and a grooving direction of the through auxiliary groove (212) is parallel to a grooving direction of the through main groove (211);

the positioning piece (23) is arranged in the through auxiliary groove (212) in a limiting mode in a mode of being capable of driving the moving wheel (222) arranged in the through main groove (211) to conduct directional translation.

4. A passive pay-off device as claimed in claim 3, characterized in that a plurality of limit grooves (213) are provided at intervals on the lower side wall of the through auxiliary groove (212), the positioning member (23) being adjustably partly inserted in the limit grooves (213) to define the positioning member (23) in the through auxiliary groove (212)

Thereby adjustably positioning the wheel (222) in the through-going main slot (211).

5. A passive payout device according to claim 4, wherein the positioning member (23) comprises a stopper (231), an elastic stopper (232) and a positioning guide mechanism (233), wherein,

the limiting block (231) is detachably and partially inserted into the limiting groove (213),

the surface of the limiting block (231) far away from the limiting groove (213) is provided with an elastic limiting piece (232) capable of limiting the movement of the limiting block in the axial direction.

6. A passive payout device according to claim 5, wherein an end of the elastic stopper (232) remote from the stopper (231) is further connected to the positioning guide mechanism (233) mounted on the upper side wall of the through sub-slot (212) so as to define a movable direction of the stopper (231) when pulled out from the stopper slot (213).

7. The passive paying-off device according to claim 6, wherein two groups of rollers (22) of the two rotary support roller tables (2) respectively movably support the reel body of the wire reel (3) so that the wire reel (3) can rotate on the rollers (22);

the same driving wheel (222) of the rotary support roller way (2) can move in the through main groove (211) along the grooving direction, so that the distance between the driving wheel (222) and the fixed wheel (221) is adjusted.

8. A passive payout device according to claim 7, wherein the rotation assembly (4) includes a support (41), a rotation disc (42), a rotation outer tube (43), a rotation inner rod (44) and a rotation limiter (45), wherein,

the support piece (41) is supported on the base (1), and the end, far away from the base (1), of the support piece (41) is rotatably connected with the rotating outer tube (43) which is overlapped with the axis of the wire spool (3);

the rotary inner rod (44) is inserted in the rotary outer tube (43), and one end of the rotary inner rod (44) close to the wire spool (3) is provided with a guide parallel to the end face of the wire spool (3)

The rotating disc (42).

9. A passive payout device according to claim 8, wherein one end of the rotating inner rod (44) inserted into the rotating outer tube (43) is provided with the rotation limiter (45), and the rotation limiter (45) is capable of limiting the relative position between the rotating inner rod (44) and the rotating outer tube (43) according to its own elasticity in the axial direction, so that the rotating inner rod (44) is capable of abutting the rotating disc (42) against the end face of the spool (3).

10. The passive pay-off device according to claim 9, wherein one end of the rotating inner rod (44) connected with the rotating limiting piece (45) is further provided with a clamping rod (46) penetrating through the rotating outer tube (43), a limiting strip hole (431) for the clamping rod (46) to axially translate along with the rotating inner rod (44) is formed in the tube wall of the rotating outer tube (43), and one end, close to the rotating limiting piece (45), of the limiting strip hole (431) is further communicated with an L-shaped positioning hole (432) capable of limiting the position of the rotating inner rod (44) in the rotating outer tube (43).