CN212668869U

CN212668869U - Over-discharge protection device for cable reel

Info

Publication number: CN212668869U
Application number: CN202021476043.4U
Authority: CN
Inventors: 周献华; 孙杰; 李雁峰
Original assignee: Guangdong Bozhilin Robot Co Ltd
Current assignee: Guangdong Bozhilin Robot Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-03-09
Anticipated expiration: 2030-07-23

Abstract

The application provides a cable reel over-discharge protection device which comprises a bearing support, a cable reel, a take-up and pay-off driving piece, a pressing plate, a pressing wheel, a spring and an over-discharge trigger switch, wherein the cable reel and the take-up and pay-off driving piece are arranged on the bearing support, and the take-up and pay-off driving piece is in driving connection with the cable reel; the bottom end of the pressing plate is rotatably arranged on the bearing support, and the pressing wheel is arranged at the top end of the pressing plate and presses on a cable or a cable drum of the cable drum; one end of the spring is connected to the bearing bracket, the other end of the spring is connected to the pressure plate, and the spring is in a stretching state; the over-placing trigger switch is arranged on the bearing support and close to the bottom end of the pressing plate, and the over-placing trigger switch is triggered by the bottom end of the pressing plate when the pressing wheel presses the cable winding drum; the retraction driving piece stops operating when the overdischarge trigger switch is triggered. This application cable reel is crossed and is put protection device can need not the staff and participate in when the unwrapping wire, and it can be at the cable unwrapping wire automatic shutdown unwrapping wire when putting to safety margin, avoids the cable to be damaged or even breaks.

Description

Over-discharge protection device for cable reel

Technical Field

The application relates to the technical field of cable reel correlation, particularly to a cable reel over-discharge protection device.

Background

A cable reel is one of the most common cable reels, and is mainly used for taking up and paying off cables, and when the cables need to be taken off, the cables are drawn out from the reel; when the cable is not used, the cable can be taken back to be wound on the reel, so that the space is saved, the field working environment is improved, and the cable is prevented from being damaged on the ground to cause electric leakage accidents.

At present, when the cable reel unwrapped wire, generally needed the staff to observe the unwrapping wire condition, especially when the unwrapping wire was put last several circles, must staff's manual operation make the reel stop the unwrapping wire, otherwise have the risk of damaging even breaking the cable, if the cable is electrified, produce the electric leakage accident very easily when the cable is broken, increased staff's work from this, improved the personnel selection cost to, this kind of cable reel's use is unfavorable for job site's safety protection.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a cable reel is crossed and is put protection device, can need not the staff and participate in when the unwrapping wire, and it can be at the cable unwrapping wire automatic shutdown unwrapping wire when putting to safety margin, avoids the cable to be damaged or even break because of crossing putting to can reduce staff's work and personnel selection cost, the safety protection of the job site of also being convenient for simultaneously.

The embodiment of the application provides an over-releasing protection device for a cable reel, which comprises a bearing bracket, a cable reel, a winding and unwinding driving part, a pressing plate, a pressing wheel, a spring and an over-releasing trigger switch,

the cable reel and the take-up and pay-off driving member are arranged on the bearing bracket, and the take-up and pay-off driving member is in driving connection with the cable reel;

the bottom end of the pressing plate is rotatably arranged on the bearing support, the pressing wheel is arranged at the top end of the pressing plate, and the pressing wheel presses on the cable of the cable reel or the cable reel;

one end of the spring is connected to the bearing support, the other end of the spring is connected to the pressing plate, and the spring is in a stretching state;

the over-discharge trigger switch is arranged on the bearing bracket and close to the bottom end of the pressing plate; when the cable of the cable drum is placed to a safety margin, the pressing wheel presses the cable drum and drives the bottom end of the pressing plate to trigger the over-placing trigger switch; the retractable driving piece stops operating when the over-discharge trigger switch is triggered.

In the implementation process, the cable reel over-unwinding protection device provided by the embodiment of the application has the advantages that the winding and unwinding driving part is in driving connection with the cable reel, and the winding and unwinding driving part is used for driving the cable reel to pay off and take up; the bottom end of the pressure plate is rotatably arranged on the bearing bracket, one end of the spring in a stretching state is connected to the bearing bracket, the other end of the spring is connected to the pressure plate, so that the pressure wheel arranged at the top end of the pressure plate presses on a cable or a cable reel of the cable reel, wherein the pressure wheel presses on the cable and moves towards the direction far away from the cable reel when taking in, the pressure wheel presses on the cable and moves towards the direction close to the cable reel when paying out, the pressure wheel presses on the cable reel until the residual quantity of the cable on the cable reel reaches a safety margin, at the moment, the over-releasing trigger switch is triggered by the bottom end of the pressure plate, the retracting driving piece stops operating, and the cable reel stops paying out. Thereby can reduce staff's work and personnel selection cost, also be convenient for the safety protection of job site simultaneously.

Further, the bearing bracket comprises a bracket main body and a pressure plate mounting rack,

the pressing plate mounting frame is arranged on the support main body;

the bottom end of the pressing plate is rotatably arranged on the pressing plate mounting frame, and the over-release trigger switch is arranged on the pressing plate mounting frame;

the cable reel and the retractable driving piece are arranged on the support main body, and one end of the spring is connected to the support main body.

In the implementation process, the pressing plate mounting frame is convenient to rotate and arrange at the bottom end of the pressing plate, and the over-discharge trigger switch is convenient to trigger through the rotation of the bottom end of the pressing plate.

Further, the retractable driving piece is a retractable driving motor, and the retractable driving motor is in transmission connection with the cable drum through a transmission belt.

In the implementation process, the winding and unwinding driving part adopts a winding and unwinding driving motor, and the winding and unwinding driving motor is in transmission connection with the cable drum through a transmission belt, so that the winding and unwinding driving part can drive the cable drum well, and the winding and unwinding driving part has a good driving control effect on the cable drum.

Further, the pressing wheel is rotatably arranged at the top end of the pressing plate.

In the implementation process, the pressing wheel is arranged at the top end of the pressing plate in a rotating mode and is equivalently a roller, and the rotating arrangement of the pressing wheel can reduce abrasion of the pressing wheel to a cable in the paying-off and taking-up processes.

Further, the pinch roller is step shaft-shaped.

In the implementation process, the step shaft-shaped pressing wheel is convenient for orderly winding up of the cable when the cable is wound to the position near the pressing wheel during winding up.

Furthermore, the pinch roller is provided with a first shaft section and a second shaft section which are connected, and the first shaft section of the pinch roller is closer to the top end of the pressure plate than the second shaft section of the pinch roller;

the radius of the first shaft section of the pinch roller is larger than that of the second shaft section of the pinch roller, and the difference value between the radius of the first shaft section of the pinch roller and the radius of the second shaft section of the pinch roller is larger than the diameter of a cable of the cable drum;

the first shaft section of the pressing wheel presses on the cable of the cable drum or the cable drum.

In the implementation process, the arrangement of the first shaft section and the second shaft section of the pressing wheel and the arrangement of the radius of the first shaft section and the second shaft section can ensure that the wire winding effect of the cable is better when the cable is wound to the position near the pressing wheel during wire winding.

Furthermore, the pressing wheels are multiple, the sizes of the pressing wheels are different, and any one of the pressing wheels is detachably arranged at the top end of the pressing plate.

In the implementation process, the safety margins of the cables on the cable drums corresponding to the pressing wheels with different sizes can be different, and the pressing wheels adopt a detachable setting mode, so that the safety margins of the cables on the cable drums can be adjusted by replacing the pressing wheels when the pressing wheels are applied.

Further, the over-discharge trigger switch is a travel switch or a microswitch.

In the implementation process, the over-discharge trigger switch adopts a travel switch or a microswitch, so that the trigger of the bottom end of the pressing plate on the over-discharge trigger switch can be well realized.

Further, the cable reel over-discharge protection device also comprises a guide rod,

the guide rod is arranged at the cable passing opening of the bearing bracket.

In the implementation process, the guide rod is used for guiding the cable when the cable is paid off and taken up, and the cable paying off and taking up effects are guaranteed.

Furthermore, a rotating shaft sleeve is arranged on the guide rod.

In the implementation process, the abrasion to the cable in the paying-off and taking-up processes can be reduced by the aid of the rotary shaft sleeve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a cable reel over-discharge protection device according to an embodiment of the present disclosure;

FIG. 2 is a side view of a partial schematic structural view of a cable spool over-run protection device according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a cable reel over-discharge protection device in a pay-off state according to an embodiment of the present application;

FIG. 4 is a schematic side view of a partial structure of a cable reel over-discharge protection device according to an embodiment of the present disclosure in an over-discharge protection state;

FIG. 5 is a schematic cross-sectional view of a cable reel over-discharge protection device provided by an embodiment of the present application in an over-discharge protection state;

FIG. 6 is one of schematic cross-sectional structural diagrams of the cable reel over-discharge protection device in a take-up state according to an embodiment of the present application;

FIG. 7 is a second schematic cross-sectional view of the cable reel over-unwinding protection device in the wire-rewinding state according to the embodiment of the present application;

fig. 8 is a third schematic cross-sectional view illustrating a cable reel over-unwinding protection device in a wire-rewinding state according to an embodiment of the present application.

Icon: 11-a load-bearing support; 111-a stent body; 112-platen mount; 12-a cable drum; 13-retraction driving member; 14-a platen; 15-pressing wheel; 151-first shaft section; 152-a second shaft section; 16-a spring; 17-an over-discharge trigger switch; 18-a guide bar; 19-rotating the shaft sleeve.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or a point connection; either directly or indirectly through intervening media, or may be an internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

Referring to fig. 1 to 5, fig. 1 and 2 are a schematic structural diagram and a schematic side view of a partial structural diagram of a cable reel over-discharge protection device according to an embodiment of the present disclosure, respectively, fig. 3 is a schematic cross-sectional structural diagram of the cable reel over-discharge protection device according to the embodiment of the present disclosure in a paying-off state, and fig. 4 and 5 are a schematic side view of the partial structural diagram and a schematic cross-sectional structural diagram of the cable reel over-discharge protection device according to the embodiment of the present disclosure in the paying-off state, respectively.

The over-releasing protection device for the cable reel comprises a bearing bracket 11, a cable reel 12, a winding and unwinding driving part 13, a pressing plate 14, a pressing wheel 15, a spring 16 and an over-releasing trigger switch 17,

the cable reel 12 and the take-up and pay-off driving part 13 are arranged on the bearing bracket 11, and the take-up and pay-off driving part 13 is in driving connection with the cable reel 12;

the bottom end of the pressing plate 14 is rotatably arranged on the bearing support 11, the pressing wheel 15 is arranged at the top end of the pressing plate 14, and the pressing wheel 15 presses on the cable of the cable reel 12 or the cable reel 12;

one end of the spring 16 is connected to the bearing bracket 11, the other end of the spring 16 is connected to the pressure plate 14, and the spring 16 is in a stretching state;

the over-discharge trigger switch 17 is arranged on the bearing bracket 11 and close to the bottom end of the pressing plate 14; when the cable of the cable drum 12 is released to a safety margin, the pressing wheel 15 presses on the cable drum 12 and drives the bottom end of the pressing plate 14 to trigger the over-release trigger switch 17; the retraction drive member 13 is deactivated when the over-discharge trigger switch 17 is triggered.

In this embodiment, the cable reel over-discharge protection device of the embodiment of the present application can be used for paying off and taking up an electric cable or an optical cable, and over-discharge protection during paying off of the electric cable or the optical cable.

Specifically, the take-up and pay-off driving member 13 is in driving connection with the cable drum 12, and the take-up and pay-off driving member 13 is used for driving the cable drum 12 to pay off and take up.

The bottom end of the pressing plate 14 is rotatably disposed on the supporting bracket 11, one end of the spring 16 in a stretching state is connected to the supporting bracket 11, and the other end is connected to the pressing plate 14, so that the pressing wheel 15 disposed on the top end of the pressing plate 14 presses on the cable of the cable drum 12 or the cable drum 12.

Wherein, pinch roller 15 presses on the cable and moves towards the direction of keeping away from cable reel 12 when receiving the line, and pinch roller 15 presses on the cable and moves towards the direction of being close to cable reel 12 when unwrapping wire, just presses on cable reel 12 when the surplus of the cable on cable reel 12 reaches the safety margin, to this, can see fig. 2 to 5, can know from fig. 5, when the safety margin of cable is the cable on cable reel 12 and remains three circles, just pinch roller 15 presses on cable reel 12 when the cable on cable reel 12 remains three circles.

When the pinch roller 15 is pressed on the cable reel 12, the bottom end of the pressing plate 14 triggers the over-release trigger switch 17 through rotation, when the over-release trigger switch 17 is triggered, the winding and unwinding driving part 13 stops operating, the cable reel 12 stops paying off, and the over-release protection effect is achieved.

In the present embodiment, the safety margin of the cable can be adjusted by the setting position of the bottom end of the pressing plate 14 on the bearing bracket 11 or the size of the pressing wheel 15, for example, the safety margin of the cable can be adjusted to four or six turns of the cable on the cable drum 12 by the setting position of the bottom end of the pressing plate 14 on the bearing bracket 11 or the size of the pressing wheel 15, and so on.

The cable reel over-discharge protection device of the embodiment of the application can be free from the participation of workers when paying off, can automatically stop paying off when the cable paying off is put to safety allowance, avoids the cable from being damaged or even broken due to over-discharge, can reduce the work and personnel cost of the workers, and is convenient for the safety protection of a construction site.

Referring to fig. 1 and 2, in the present embodiment, the carrier bracket 11 includes a bracket main body 111 and a platen mounting bracket 112,

the pressing plate mounting frame 112 is arranged on the bracket main body 111;

the bottom end of the pressure plate 14 is rotatably arranged on the pressure plate mounting frame 112, and the over-release trigger switch 17 is arranged on the pressure plate mounting frame 112;

the cable drum 12 and the retraction driving member 13 are provided on the holder main body 111, and one end of the spring 16 is connected to the holder main body 111.

The provision of the platen mount 112 facilitates rotational positioning of the bottom end of the platen 14 and the triggering of the over-discharge trigger switch 17 by rotation of the bottom end of the platen 14.

Referring to fig. 1 and 2, in the present embodiment, the retraction driving member 13 is a retraction driving motor, and the retraction driving motor is in transmission connection with the cable drum 12 through a transmission belt.

The retractable driving part 13 adopts a retractable driving motor, and the retractable driving motor is in transmission connection with the cable drum 12 through a transmission belt, so that the retractable driving part 13 can drive the cable drum 12, and the retractable driving part 13 has a good driving control effect on the cable drum 12.

It should be noted that, in other embodiments, the retraction driving motor may also drive the cable drum 12 in other manners, and other driving manners of the cable drum 12 by the retraction driving motor are not listed here; in other embodiments, other types of driving devices may be used for the retractable driving member 13, and are not illustrated here.

Referring to fig. 1 and 3, in the present embodiment, the pressing wheel 15 is rotatably disposed at the top end of the pressing plate 14.

The pinch roller 15 rotates and sets up in the top of clamp plate 14, is equivalent to pinch roller 15 for the gyro wheel, and pinch roller 15's rotation setting can reduce the wearing and tearing of pinch roller 15 to the cable at unwrapping wire, receipts line in-process.

Referring to FIGS. 1, 3 and 5, in this embodiment, puck 15 is stepped-axis shaped.

The step shaft-shaped pinch roller 15 is convenient for orderly winding up the cable when the cable is wound to the position near the pinch roller 15 during winding up.

Specifically, the pressure wheel 15 has a first shaft segment 151 and a second shaft segment 152 connected to each other, and the first shaft segment 151 of the pressure wheel 15 is closer to the top end of the pressure plate 14 than the second shaft segment 152 of the pressure wheel 15;

the radius of the first shaft section 151 of the pinch roller 15 is greater than the radius of the second shaft section 152 of the pinch roller 15, and the difference between the radius of the first shaft section 151 of the pinch roller 15 and the radius of the second shaft section 152 of the pinch roller 15 is greater than the diameter of the cable drum 12;

the first shaft section 151 of the pressure wheel 15 presses against the cable or the cable drum 12 of the cable drum 12.

The arrangement of the first shaft section 151 and the second shaft section 152 of the pressure wheel 15 and the arrangement of the radiuses of the first shaft section 151 and the second shaft section 152 can ensure that the wire rewinding effect of the cable is better when the cable is wound around the position near the pressure wheel 15 during wire rewinding.

Fig. 6 to 8 are schematic cross-sectional structural diagrams at different stages when the cable reel over-unwinding protection device provided in the embodiment of the present application is in a wire rewinding state, in which, when the wire rewinding starts, the cable reel 12 rolls, the cable simultaneously reciprocates in a horizontal direction, and when the cable winds to the right, the cable can better lift the pinch roller 15 through the second shaft section 152 of the pinch roller 15, so that, as shown in fig. 6, the cable can be continuously and orderly wound on the cable reel 12, for which, fig. 7 can be seen, and when the wire rewinding continues, the cable can better lift the pinch roller 15 and continuously and orderly wind on the cable reel 12, for which, fig. 8 can be seen.

Referring to fig. 1 and 2, in the present embodiment, there are a plurality of press rollers 15, the plurality of press rollers 15 have different sizes, and any one of the plurality of press rollers 15 is detachably disposed at the top end of the pressing plate 14.

The safety margin of the cable on the cable reel 12 corresponding to the pinch rollers 15 with different sizes can be different, and the pinch rollers 15 adopt a detachable mode, so that the safety margin of the cable on the cable reel 12 can be adjusted by replacing the pinch rollers 15 when in use.

Referring to fig. 1 and 2, in the present embodiment, the overdischarge trigger switch 17 is a stroke switch or a microswitch.

The over-discharge trigger switch 17 is a travel switch or a microswitch, and the bottom end of the pressure plate 14 can better trigger the over-discharge trigger switch 17.

Referring to fig. 1 and 2, in the present embodiment, the cable reel over-unwinding protection device of the embodiment of the present application further includes a guide bar 18, and the guide bar 18 is disposed at the cable passing opening of the carrying bracket 11.

In particular, the carrying bracket 11 is provided with a top opening and a side opening, and it can be understood that the cable through opening of the carrying bracket 11, that is, the opening on the carrying bracket 11 for the cable to pass through, that is, the side opening on the carrying bracket 11.

The guide rod 18 is used for guiding the cable during paying off and taking up, and the effect of the cable during paying off and taking up is guaranteed.

Specifically, the guide bar 18 is provided with a turning shaft sleeve 19.

The arrangement of the rotary shaft sleeve 19 can reduce the abrasion to the cable in the wire releasing and taking-up processes.

In all the above embodiments, the terms "large" and "small" are relative terms, and the terms "more" and "less" are relative terms, and the terms "upper" and "lower" are relative terms, so that the description of these relative terms is not repeated herein.

It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the present application," or "as an alternative implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in this embodiment," "in the examples of the present application," or "as an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.

In various embodiments of the present application, it should be understood that the size of the serial number of each process described above does not mean that the execution sequence is necessarily sequential, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An over-releasing protection device for a cable reel is characterized by comprising a bearing bracket, a cable reel, a winding and unwinding driving piece, a pressing plate, a pressing wheel, a spring and an over-releasing trigger switch,

2. The cable reel over-discharge protection device of claim 1, wherein the carrier bracket comprises a bracket body and a pressure plate mounting bracket,

the pressing plate mounting frame is arranged on the support main body;

3. The cable reel over-discharge protection device according to claim 1, wherein the take-up and pay-off driving member is a take-up and pay-off driving motor, and the take-up and pay-off driving motor is in transmission connection with the cable reel through a transmission belt.

4. The cable reel over-discharge protection device of claim 1, wherein the pinch roller is rotatably disposed at a top end of the pressure plate.

5. The cable spool over-discharge protection device of claim 1, wherein the pinch roller is stepped shaft-like.

6. The cable reel over-discharge protection device of claim 5, wherein the pinch roller has first and second axial segments joined, the first axial segment of the pinch roller being closer to the top end of the pressure plate than the second axial segment of the pinch roller;

7. The cable reel over-discharge protection device of claim 5, wherein the pinch rollers are multiple, the pinch rollers are different in size, and any one of the pinch rollers is detachably disposed at the top end of the pressure plate.

8. The cable reel over-discharge protection device of claim 1, wherein the over-discharge trigger switch is a travel switch or a microswitch.

9. The cable spool over-discharge protection device of claim 1, further comprising a guide rod,

the guide rod is arranged at the cable passing opening of the bearing bracket.

10. The cable reel over-discharge protection device of claim 9, wherein the guide bar is provided with a swivel sleeve.