Bidirectional manual recovery type winder

Abstract

The utility model belongs to the technical field of electrical test auxiliary equipment, and particularly relates to a bidirectional manual recovery type winder, which comprises a test wire, an upper shell, a lower shell and a rotating handle, the upper shell and the lower shell are symmetrically and coaxially mounted and form a cylindrical cavity, the upper shell is provided with a mounting hole corresponding to the axis of the cylindrical cavity, and the rotating handle is arranged in the mounting hole. A mounting part is arranged at the position, corresponding to the axis of the cylindrical cavity, of the lower shell, the rotating handle comprises a winding shaft and a handle, one end of the winding shaft penetrates through the mounting hole and is rotatably arranged on the mounting part, and the handle is fixed to the other end of the winding shaft and used for driving the winding shaft to rotate; the middle section of the test wire is fixed on the winding shaft, the side walls of the upper shell and the lower shell are respectively provided with a wire outlet, the two ends of the test wire respectively penetrate through the corresponding wire outlets from the interior of the cylindrical cavity, and compared with unidirectional winding, bidirectional winding can reduce tension, reduce abrasion of the test wire and prolong the service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical testing auxiliary equipment, specifically relating to a bidirectional manual retractable cable reel. Background Technology

[0002] In the field of high-voltage electrical equipment testing, critical tests such as measuring the mechanical characteristics of circuit breakers and the DC resistance of transformers require the connection of numerous test leads between the testing instruments and the equipment under test. These leads, varying in length and numerous in number, are prone to confusion during on-site testing, posing significant challenges to the verification of test circuits. The organization of these leads after testing also presents challenges, increasing the difficulty of organization and extending the post-test cleanup time. Furthermore, due to the limited length of the test leads, when multiple leads need to be connected in series, the insulation performance of the joints and the stability of the connections become critical issues. Poor insulation or connections can lead to inaccurate test data and even safety accidents.

[0003] To address the aforementioned issues, existing technology includes a unidirectional automatic retractable cable reel, which primarily utilizes a built-in spring to achieve automatic cable retraction. However, this design has a significant drawback: when the cable is long, pulling it out during use or winding it back into the housing after use requires considerable tension. This increases the friction between the cable reel's outlet and the cable, causing severe wear on the cable. Furthermore, the increased friction between the cable and the winding section further exacerbates cable wear, significantly reducing the reel's lifespan. Utility Model Content

[0004] In view of this, the present invention provides a bidirectional manual retractable cable reel to solve the technical problem in the prior art where, when the wire inside the unidirectional cable reel is long, a large tension is required during winding, which causes severe wear on the wire and shortens the service life of the cable reel.

[0005] To achieve the above objectives, this application adopts the following approach:

[0006] A bidirectional manual retractable cable reel includes a test lead, an upper housing, a lower housing, and a rotating handle. The upper and lower housings are symmetrically and coaxially mounted to form a cylindrical cavity. The upper housing has a mounting hole corresponding to the axis of the cylindrical cavity, and the lower housing has a mounting part corresponding to the axis of the cylindrical cavity. The rotating handle includes a cable reel and a handle. One end of the cable reel passes through the mounting hole and is rotatably mounted on the mounting part. The handle is fixed to the other end of the cable reel and is used to drive the cable reel to rotate. The middle section of the test lead is fixed to the cable reel. The side walls of the upper and lower housings each have a cable outlet, and both ends of the test lead pass through the corresponding cable outlets from the cylindrical cavity.

[0007] Preferably, both the upper housing and the lower housing are provided with fixing members on their side walls, and the two fixing members correspond to each other and are detachably connected by a connector.

[0008] Preferably, at least one isolation plate is provided inside the upper housing or the lower housing, and the isolation plate is located between the two outlets to divide the test lead into two unconnected parts.

[0009] Preferably, three partition plates are provided inside both the upper and lower housings, and the three partition plates are evenly distributed circumferentially around the axis of the cylindrical cavity.

[0010] Preferably, the winding spool has a wire groove, and at least two wire fixing terminals are detachably provided in the wire groove. The middle section of the test wire is located in the wire groove, and the two wire fixing terminals are used to fix the middle section of the test wire.

[0011] Preferably, the distance between the two wire fixing terminals is not less than 5cm.

[0012] Preferably, the two outlets are 180° apart.

[0013] Preferably, each of the cable outlets is provided with a scratch-resistant soft sleeve.

[0014] Preferably, both ends of the test lead are provided with insulating protective sleeves, and the outer diameter of the insulating protective sleeves is larger than the outer diameter of the outlet.

[0015] Preferably, both the upper housing and the lower housing are made of insulating material.

[0016] In the aforementioned bidirectional manual retractable winding device, the upper and lower housings are symmetrically and coaxially mounted to form a cylindrical cavity. The middle section of the test lead is fixed to the winding spool. One end of the winding spool passes through the mounting hole in the upper housing and is rotatably mounted on the mounting part of the lower housing. One end of the test lead is passed through the corresponding outlet on the upper housing, and the other end is passed through the outlet on the lower housing. Thus, when the test lead is needed, both ends are pulled out simultaneously to the required length and connected to the testing instrument. Because this application adopts a bidirectional winding design, compared with a unidirectional winding device, the tension is reduced, making it easier to retract the test lead. When the test lead is pulled out, the friction between the test lead and the outlet is reduced, thus reducing wear on the test lead. After use, when winding the test lead, turning the handle causes the winding shaft to rotate, winding the test lead into the cylindrical cavity. Compared with a unidirectional winding device, this also reduces tension, further reducing friction between the test lead and the outlet. Bidirectional winding is equivalent to halving the length of the test lead compared to unidirectional winding, thus reducing tension. Therefore, it reduces the friction between the lead and the winding part, further reducing wear on the test lead and extending its service life. The bidirectional winding design also reduces winding time and improves winding efficiency.

[0017] In addition, the manual winding method used in this application avoids the problem in the prior art where the winding device uses a spring. When the test lead is long, the elasticity of the spring needs to be increased. However, if the spring elasticity is too high, it can easily damage the winding device housing. After the housing is damaged, the spring and housing fragments will fly out, which can easily cause personal injury. Therefore, this application has a high level of safety.

[0018] Since the upper and lower housings and the rotating handle in this application are all detachable, it is easy to replace the test lead with a new one when it is damaged, or to replace it with a test lead of different specifications according to the actual situation, thus improving its convenience. Attached Figure Description

[0019] Figure 1 This is an isometric view of the bidirectional manual retractable cable reel in this utility model.

[0020] Figure 2 This is a left view of the bidirectional manual retractable cable reel in this utility model.

[0021] Figure 3 This is a top view of the bidirectional manual retractable cable reel in this utility model.

[0022] Figure 4 This is a schematic diagram of the rotating handle structure in the bidirectional manual retractable cable reel of this utility model.

[0023] Figure 5This is a schematic diagram of the upper housing structure of the bidirectional manual reel in this utility model.

[0024] Figure 6 This is a schematic diagram of the lower housing structure of the bidirectional manual reel in this utility model.

[0025] In the figure, the test lead 100, upper housing 210, wire outlet 211, mounting hole 212, fastener 213, isolation plate 214, lower housing 220, mounting part 221, rotating handle 300, handle 310, winding spool 320, wire groove 311, and wire fixing terminal 312 are shown. Detailed Implementation

[0026] To facilitate understanding of this application, a more comprehensive description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are also given. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please refer to Figures 1 to 6 This embodiment provides a bidirectional manual reel-up reel, including a test lead 100, an upper housing 210, a lower housing 220, and a rotating handle 300. The upper housing 210 and the lower housing 220 are symmetrically and coaxially mounted, forming a cylindrical cavity. The upper housing 210 has a mounting hole 212 at the axis of the cylindrical cavity, and the lower housing 220 has a mounting part 221 at the axis of the cylindrical cavity. The rotating handle 300 includes a reel 320 and a handle 31. 0. One end of the winding spool 320 passes through the mounting hole 212 and is rotatably mounted on the mounting part 221. The handle 310 is fixed to the other end of the winding spool 320 and is used to drive the winding spool 320 to rotate. The middle section of the test lead 100 is fixed on the winding spool 320. An outlet 211 is respectively opened on the side wall of the upper housing 210 and the lower housing 220. The two ends of the test lead 100 pass through the corresponding outlet 211 from the cylindrical cavity.

[0029] In this embodiment, the upper surface of the outer shape of the upper housing 210 and the lower housing 220 can be circular, square, triangular, or other polygonal shapes. In this embodiment, a circular shape is preferred, with a cylindrical cavity inside. The size of the upper housing 210 and the lower housing 220 can be determined by those skilled in the art based on actual conditions. When manufacturing the reel, firstly, the reel 320 is installed onto the mounting part 221 through the mounting hole 212. The mounting part 221 is a protrusion extending vertically upward from the lower housing 220. Then, the middle section of the test lead 100 is fixed to the reel 320, and one end of the test lead 100 is passed through the corresponding outlet 211 of the upper housing 210, and the other end of the test lead 100 is passed through the outlet 211 of the lower housing 220. It can be fixed by binding or other methods. Finally, the upper housing 210 and the lower housing 220 are symmetrically and coaxially installed. In use, pull both ends of a test lead 100 to extend it. The test lead 100 can be equipped with wire terminals at both ends for easy operation. Pull the two ends of the test lead 100 from the corresponding outlet 211 of the upper housing 210 and the lower housing 220 to the required length and connect them to the test instrument and the device under test to form a circuit. After use, rotate the handle 310 counterclockwise (or clockwise) to retract the test lead 100 so that the two ends of the test lead 100 are respectively located at the corresponding outlet 211.

[0030] In the aforementioned bidirectional manual retractable winding device, the upper housing 210 and lower housing 220 are symmetrically and coaxially mounted to form a cylindrical cavity. The middle section of the test lead 100 is fixed to the winding spool 320. One end of the winding spool 320 passes through the mounting hole 212 of the upper housing 210 and is rotatably mounted on the mounting part 221 of the lower housing 220. One end of the test lead 100 passes through the corresponding outlet 211 on the upper housing 210, and the other end of the test lead 100 passes through the outlet 211 of the lower housing 220. Thus, when the test lead 100 is needed, both ends of the test lead 100 are pulled out simultaneously to the required length and connected to the testing instrument. Because this application adopts a bidirectional winding design, compared with a unidirectional winding device... The reduced tension decreases the friction between the test lead 100 and the outlet 211 when it is pulled out, thus reducing wear on the test lead 100. After use, when winding the test lead 100, the handle 310 is turned, which drives the winding shaft 320 to rotate, winding the test lead 100 into the cylindrical cavity. Compared with a unidirectional winding device, this also reduces tension, thus reducing the friction between the test lead 100 and the outlet 211. Bidirectional winding is equivalent to halving the length of the test lead 100 compared to unidirectional winding, thereby reducing the friction between the lead and the winding part, further reducing wear on the test lead 100, and extending its service life. The bidirectional winding design also reduces winding time and improves winding efficiency.

[0031] In addition, the manual winding method used in this application avoids the problem in the prior art where the winding device uses a spring. When the test lead 100 is long, the elasticity of the spring needs to be increased. However, if the spring elasticity is too high, it can easily damage the winding device housing. After the housing is damaged, the spring and housing fragments will fly out, which can easily cause personal injury. Therefore, this application has a high level of safety.

[0032] Since the upper housing 210, the lower housing 220, and the rotating handle 300 in this application are all detachably connected, it is easy to replace the test lead 100 with a new one when it is damaged, or to replace it with a test lead 100 of different specifications according to the actual situation, thus improving its convenience.

[0033] To facilitate the opening of the upper housing 210 and the lower housing 220 for timely inspection or replacement of the test lead 100, in a specific embodiment, both the upper housing 210 and the lower housing 220 are provided with fixing members 213, and the two fixing members 213 correspond to each other and are detachably connected by connectors, such as nuts and bolts. The advantage of this arrangement is that if the test lead 100 is wound inside the cylindrical cavity, it can be inspected and dealt with in a timely manner. When the test lead 100 is damaged, it is easy to replace it with a new test lead 100, or to replace it with a test lead 100 of different specifications according to the actual situation.

[0034] When the test lead 100 is long, considering that the test lead 100 in the upper housing 210 and the lower housing 220 may become entangled, affecting the recovery efficiency, in a preferred embodiment, at least one isolation plate 214 is provided in the upper housing 210 or the lower housing 220, and the isolation plate 214 is located between the two outlets 211, which is used to divide the test lead 100 into two unconnected parts. Preferably, in this embodiment, three isolation plates 214 are provided in both the upper housing 210 and the lower housing 220, and the three isolation plates 214 are evenly distributed circumferentially around the axis of the cylindrical cavity. By utilizing the guiding effect of the isolation plates 214 inside the recovery housing and the rotation effect of the manual rotating handle 300, the test lead 100 can be extended and retracted flexibly, avoiding internal jamming or entanglement.

[0035] To more securely fix the middle section of the test lead 100 to the spool 320, in a preferred embodiment, a lead groove 311 is provided inside the spool 320, and at least two lead fixing terminals 312 are detachably provided inside the lead groove 311. The middle section of the test lead 100 is located inside the lead groove 311, and the two lead fixing terminals 312 are used to fix the middle section of the test lead 100 to prevent the middle part of the test lead 100 from falling out of the lead groove 311.

[0036] Furthermore, the distance between the two wire fixing terminals 312 is not less than 5cm to avoid the test wire 100 from getting tangled during bidirectional winding.

[0037] To better recover the test lead 100, so that the number of test leads 100 recovered in the upper housing 210 and the lower housing 220 is equal and the recovered test leads 100 are as straight as possible, in a preferred embodiment, the two outlets 211 are 180° apart.

[0038] To prevent the test lead 100 from being scratched at the outlet 211 of the housing, in one specific embodiment, each outlet 211 is provided with a scratch-resistant soft sleeve, which may be made of a soft insulating material.

[0039] Both ends of the test lead 100 are provided with insulating protective sleeves, and the outer diameter of the insulating protective sleeves is larger than the outer diameter of the outlet 211. The outer diameter of the insulating protective sleeves at both ends of the test lead 100 is larger than the outer diameter of the outlet 211 of the housing, so that when the test lead 100 is retracted after the test, the connecting end of the test lead 100 will not retract into the housing.

[0040] In a preferred embodiment, both the upper housing 210 and the lower housing 220 are made of insulating material.

[0041] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A bidirectional manual reel-in reel, comprising a test lead, characterized in that, The device includes an upper housing, a lower housing, and a rotating handle. The upper and lower housings are symmetrically and coaxially mounted to form a cylindrical cavity. The upper housing has a mounting hole at the axis of the cylindrical cavity, and the lower housing has a mounting part at the axis of the cylindrical cavity. The rotating handle includes a winding spool and a handle. One end of the winding spool passes through the mounting hole and is rotatably mounted on the mounting part. The handle is fixed to the other end of the winding spool and is used to drive the winding spool to rotate. The middle section of the test lead is fixed to the winding spool. The side walls of the upper and lower housings each have an outlet, and both ends of the test lead pass through the corresponding outlets from the cylindrical cavity.

2. The bidirectional manual reel-in reel according to claim 1, characterized in that, Both the upper housing and the lower housing are provided with fixing members on their side walls, and the two fixing members correspond to each other and are detachably connected by a connector.

3. The bidirectional manual reel-in reel according to claim 1, characterized in that, At least one isolation plate is provided inside the upper housing or the lower housing, and the isolation plate is located between the two outlets to divide the test lead into two unconnected parts.

4. The bidirectional manual reel-in reel according to claim 3, characterized in that, Both the upper and lower housings are provided with three partition plates, and the three partition plates are evenly distributed circumferentially around the axis of the cylindrical cavity.

5. The bidirectional manual reel-in reel according to claim 1, characterized in that, The winding spool has a wire groove, and at least two wire fixing terminals are detachably installed in the wire groove. The middle section of the test wire is located in the wire groove, and the two wire fixing terminals are used to fix the middle section of the test wire.

6. The bidirectional manual reel-in reel according to claim 5, characterized in that, The distance between the two wire fixing terminals shall not be less than 5cm.

7. The bidirectional manual reel-in reel according to claim 1, characterized in that, The two outlets are 180° apart.

8. The bidirectional manual reel-in reel according to claim 1, characterized in that, Each of the aforementioned outlets is provided with a scratch-resistant soft sleeve.

9. The bidirectional manual reel-in reel according to claim 1, characterized in that, Both ends of the test lead are equipped with insulating protective sleeves, and the outer diameter of the insulating protective sleeves is larger than the outer diameter of the outlet.

10. The bidirectional manual reel-in reel according to claim 1, characterized in that, Both the upper and lower housings are made of insulating material.

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