A self-winding wire reel, a joint multi-slot wire reel and a ground wire storage device

Abstract

The application discloses a self-winding wire reel, a combined multi-groove wire reel and a ground wire storage device. The self-winding wire reel comprises a wire winding drum, the outer side of the baffle at the left and right ends of the wire winding drum is fixed with a connecting disc and a connecting disc cover, the two ends of a drum shaft rotatably connected with the self-winding wire reel are rotatably connected with the connecting disc and the connecting disc cover, the outer side disc surface of the connecting disc and the connecting disc cover is provided with a quick connection assembly structure for connecting a plurality of self-winding wire reels in series, and the drum shaft and the wire winding drum are provided with an elastic self-winding structure and a rotation stopping structure. The combined multi-groove wire reel is composed of a plurality of self-winding wire reels connected in series. The ground wire storage device comprises a ground large disc wire storage device and a small disc wire storage device, the large disc wire storage device comprises a wire reel frame and a large wire reel rotatably connected to the wire reel frame, and the large wire reel is transmissionally connected with a hand-automatic driving device. The self-winding wire reel and the combined multi-groove wire reel can realize self-winding and rotation stopping and wire clamping, and the ground wire storage device can be quickly converted between manual operation and motor driving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a self-winding wire reel, a combined multi-groove wire reel and a grounding wire storage device. BACKGROUND

[0002] In the process of high-voltage electrical equipment test in a substation, the grounding wire is an important link, which is related to the accuracy of the test, the safety of the equipment and the personnel. The grounding wire for power test is also called safety return line, which is used to transfer high voltage to the ground directly, and is an important tool to ensure the safety of workers when unexpected voltage appears on the equipment and line that has been de-energized. The grounding wire generally has multiple branches, one of which is grounded, and the rest are also grounded. In order to meet different experimental requirements, the length of each branch is relatively long. If the grounding wire is not wound after use, it will be very difficult to arrange the tangled wire ends next time, and it cannot be used in the field without grounding. In the prior art, due to the relatively long length of each branch of the multi-branch grounding wire and the relatively thin diameter of the grounding wire, the probability of intersection between the wires is relatively high, the friction force is increased, and the winding process is extremely prone to mutual entanglement and knotting. When the grounding wire is used again, a lot of time and effort is needed to distinguish each branch of the mutually entangled grounding wire. Taking the 110kV single-phase lightning arrester direct current leakage test as an example, the normal test time is 30 minutes, and the connection time of the direct current high-voltage generator test device and the wire is about 10 minutes. Among them, the time for normally unwinding and storing the grounding wire is about 5 minutes. Especially when the grounding wire is slightly severely knotted, the time for unwinding the grounding wire at a single time can even exceed 10 minutes, which reduces the unwinding efficiency.

[0003] The grounding wire storage device is an auxiliary device for storing the grounding device, which has been widely used in the field of power construction and power maintenance. Although the existing grounding wire storage device can provide storage for the grounding wire, it is not advanced enough in winding the branches of the grounding wire and automatic winding control. For example, a kind of grounding wire quick storage device with the application publication number "CN110668269 A" sets a hollow shaft that can be manually rotated in the box with a movable roller, and the winding of the grounding wire is realized by rotating the hollow shaft. Although the efficiency of storing the grounding wire is improved, the position of each branch of the grounding wire is prone to overlap during winding due to the use of a hollow shaft to complete the storage of the multi-branch grounding wire, which leads to the entanglement of the wire. In addition, during the outdoor construction process, due to the large construction range and the long length of the grounding wire, the grounding wire is directly connected to the high-voltage electrical equipment such as a substation during the test process, which leads to the fact that the end of the grounding wire is far away from the box. Due to the large resistance of the long wire, there is a lack of power during winding, which makes the winding process more troublesome. SUMMARY

[0004] In order to solve the defects of the above-mentioned technology, the application provides a self-reeling wire reel, a combined multi-groove wire reel and a grounding wire storage device.

[0005] The technical scheme adopted by the application to achieve the above-mentioned technical effects is:

[0006] The self-reeling wire reel comprises a wire reel drum and a baffle fixed at the left and right ends of the wire reel drum, wherein the outer side of the baffle at the left and right ends of the wire reel drum is respectively fixed with a connecting disc and a connecting disc cover, the two ends of a drum shaft rotatably connected with the self-reeling wire reel are respectively rotatably connected with the connecting disc and the connecting disc cover, the outer side disc surface of the connecting disc and the connecting disc cover is respectively provided with a quick-connection assembly structure for stringing a plurality of self-reeling wire reels, and the drum shaft and the wire reel drum are provided with an elastic self-reeling structure and a rotation-stopping structure.

[0007] Preferably, in the self-reeling wire reel, the elastic self-reeling structure comprises a tape spring wound on the drum shaft, the inner end of the tape spring is fixed with the drum shaft, and the outer end is fixed with the wire reel drum.

[0008] Preferably, in the self-reeling wire reel, the rotation-stopping structure comprises a first ratchet wheel arranged in the connecting disc cover and a first pawl with adjustable and maintained swing angle, the first ratchet wheel is fixed on the drum shaft, and the rim ratchet teeth are in stopper cooperation with the first pawl.

[0009] Preferably, in the self-reeling wire reel, the first pawl is connected to the inner side disc surface of the connecting disc cover through a damping rotating shaft, the first pawl is connected with a push rod, the outer circumferential disc surface of the connecting disc cover is provided with an opening, and the outer end of the push rod extends to the outside of the connecting disc cover through the opening.

[0010] Preferably, in the self-reeling wire reel, the quick-connection assembly structure comprises a left magnetic block arranged on the outer side disc surface of the connecting disc and a right magnetic block arranged on the outer side disc surface of the connecting disc cover, and in the stringing of at least two self-reeling wire reels, the left magnetic block on one of the self-reeling wire reels is in magnetic attraction connection with the right magnetic block on the other adjacent self-reeling wire reel.

[0011] Preferably, in the self-reeling wire reel, the quick-connection assembly structure further comprises a hexagonal key block and a hexagonal hole formed at the left and right ends of the drum shaft, the hexagonal key block protrudes from the outer side disc surface of the connecting disc, and in the stringing of at least two self-reeling wire reels, the hexagonal key block on one of the self-reeling wire reels is in interlocking connection with the hexagonal hole on the other adjacent self-reeling wire reel.

[0012] The combined multi-groove wire reel is composed of three self-reeling wire reels connected through the quick-connection assembly structure.

[0013] The utility model provides a ground wire storage device, including the ground big dish wire storage device and small dish wire storage device, the ground wire is wound on the big dish wire storage device, the ground wire is wound on the small dish wire storage device from the big dish wire storage device, the big dish wire storage device includes the wire reel frame and the big wire reel of rotation connection on the wire reel frame, the left side of wire reel frame is fixed with fixed dish, the fixed dish is equipped with the hand self -contained drive device of rotation connection with wire reel, the small dish wire storage device includes the conjoined multi -slot wire reel.

[0014] Preferably, in the above-mentioned ground wire storage device, the hand self-contained drive device includes a reduction motor and a hand crank, the reduction motor is connected with a large gear through a first two-way wedge overrunning clutch, the gear shaft of the large gear is fixedly connected with the big wire reel, the hand crank is connected with a small gear through a second two-way wedge overrunning clutch, the inner end of the gear shaft of the small gear is rotationally connected with the fixed dish, and a second rotation-stopping structure is further arranged on the gear shaft of the small gear.

[0015] Preferably, in the above-mentioned ground wire storage device, the second rotation-stopping structure includes a second ratchet fixed on the gear shaft of the small gear and a second pawl connected with the fixed dish and adjustable in swing angle and maintainable.

[0016] Preferably, in the above-mentioned ground wire storage device, the outer side of the fixed dish is provided with a large gear cover and a small gear cover.

[0017] The self-reel wire reel can realize self-reel of the ground wire, and can be rotationally fixed to avoid the returned ground wire from returning to the wire reel. The conjoined multi-slot wire reel formed by the self-reel wire reels in series can realize reel and unreel of the multiple ground wires, and the ground wire storage device can realize manual reel and motor automatic reel of the ground wire, and can be quickly switched between manual and motor drive. In addition, the transition connection small dish wire storage device between the big dish wire storage device and the high-voltage electrical equipment such as a transformer substation can realize quick reel and unreel of the long-distance ground wire. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a side view of the self-reel wire reel;

[0019] Figure 2 It is a perspective view of the self-reel wire reel;

[0020] Figure 3 It is a left view of the self-reel wire reel;

[0021] Figure 4 It is a right view of the self-reel wire reel;

[0022] Figure 5 Side view of the connecting plate cover of the present application;

[0023] Figure 6 Right view of the self-reel wire coil of the present application without the connecting plate cover;

[0024] Figure 7 Perspective view of the first pawl of the present application;

[0025] Figure 8 Side view of the conjoined multi-groove wire coil of the present application;

[0026] Figure 9 Perspective view of the conjoined multi-groove wire coil of the present application;

[0027] Figure 10 Side view of the conjoined multi-groove wire coil of the present application without the connecting plate cover;

[0028] Figure 11 Perspective view of the conjoined multi-groove wire coil of the present application without the connecting plate cover;

[0029] Figure 12 Perspective view of the ground wire holder of the present application;

[0030] Figure 13 Perspective view of the ground wire holder of the present application without the large and small gear covers;

[0031] Figure 14 Side view of the ground wire holder of the present application without the large and small gear covers;

[0032] Figure 15 Left view of the ground wire holder of the present application without the large and small gear covers;

[0033] Figure 16 Figure 14 Enlarged view of the "I" portion in the figure;

[0034] Figure 17 Perspective view of the fixed plate of the present application without the small gear cover. DETAILED DESCRIPTION

[0035] In order to further understand the present application, the following further describes the present application with reference to the accompanying drawings and specific examples:

[0036] ​It should be noted that, in the description of the utility model, the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of description of the utility model and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] It should be noted that, in the description of the utility model, the terms "set", "installed", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] Please refer to Figures 1 to 7As shown in the figure, the embodiment of the present application proposes a self-reel wire reel 1, which comprises a wire reel 11 and a baffle 12 fixed at the left and right ends of the wire reel 11, and is provided with a rotating reel shaft 15, the two ends of the reel shaft 15 respectively pass through the baffle 12 and are rotationally connected with the baffle 12. Among them, as an improvement of the present application, the outer side of the baffle 12 at the left and right ends of the wire reel 11 is respectively fixed with a connecting disc 13 and a connecting disc cover 14, that is, the wire reel 11, the baffle 12, the connecting disc 13 and the connecting disc cover 14 are fixedly connected to form a whole. The two ends of the reel shaft 15 respectively pass through the connecting disc 13 and the connecting disc cover 14 and are rotationally connected with the connecting disc 13 and the connecting disc cover 14. In the embodiment of the present application, the reel shaft 15 can be a long rotating shaft penetrating through the self-reel wire reel 1, or can be a short rotating shaft rotationally connected to the baffle 12 at the left and right ends of the wire reel 11. The outer side disc surface of the connecting disc 13 and the connecting disc cover 14 is provided with a quick-connection assembly structure for stringing a plurality of self-reel wire reels 1, and a plurality of self-reel wire reels 1 can be connected by the quick-connection assembly structure. Specifically, in the embodiment of the present application, the reel shaft 15 and the wire reel 11 are provided with an elastic self-reeling structure and a rotation-stopping structure. When the rotation-stopping structure does not exert a rotation-stopping effect on the reel shaft 15, the elastic self-reeling structure can exert a reeling elastic force on the wire reel 11, and under the reeling elastic force, the wire reel 11 is reeled around the reel shaft 15, so that the self-reeling of the grounding wire can be realized without providing external power. When the rotation-stopping structure exerts a rotation-stopping effect on the reel shaft 15, the rotation-stopping structure will limit the wire reel 11 to reel around the reel shaft 15, and only rotate in the unwinding direction. At this time, the grounding wire on the wire reel 11 is pulled outward, and the grounding wire can be pulled out in the unwinding direction. After the pulling force of the grounding wire is removed, the grounding wire can be fixed at the current position without being reeled back to the wire reel 11, thereby effectively preventing the grounding wire from being reeled back in the reverse direction, and the unwinding and reeling are flexible and convenient.

[0039] Further, in the preferred embodiment of the present application, as shown in Figure 6 the elastic self-reeling structure comprises a ruler spring 16 wound on the reel shaft 15, wherein the inner end of the ruler spring 16 is fixed with the reel shaft 15, and the outer end is fixed with the wire reel 11. When the wire reel 11 rotates in the unwinding direction relative to the reel shaft 15 (at this time, the reel shaft 15 is subjected to the rotation-stopping effect of the rotation-stopping structure), as the wire reel 11 rotates in the unwinding direction, the ruler spring 16 is in a contraction / compression state, which has elastic potential energy generated after being reeled. After the unwinding is completed, the rotation-stopping effect of the reel shaft 15 exerted by the rotation-stopping structure is removed, at this time, the ruler spring 16 in the contraction / compression state releases the elastic potential energy, and when the ruler spring 16 recovers from the reeled state to the free state, the reel shaft 15 is driven to rotate in the reeling direction, thereby driving the wire reel 11 to rotate in the reeling direction, and automatically reeling the previously unwound grounding wire on the wire reel 11, realizing the power-free self-reeling of the unwound grounding wire.

[0040] Further, in the preferred embodiment of the present application, as shown in Figure 6 and Figure 7 the rotation-stopping structure comprises a first ratchet wheel 17 and a first pawl 18 provided in the connecting disc cover 14, wherein the first ratchet wheel 17 is fixed on one end of the cylinder shaft 15, the first pawl 18 is rotatably connected in the connecting disc cover 14, and the rim teeth of the first ratchet wheel 17 are in stop cooperation with the first pawl 18. Specifically, the first pawl 18 is connected to the inner disc surface of the connecting disc cover 14 through a damping shaft, and the first pawl 18 is connected with a lever 181. The outer end of the lever 181 extends to the outside of the connecting disc cover 14 through an opening 142 provided on the outer circumferential disc surface of the connecting disc cover 14. Under the damping effect provided by the damping shaft, when the lever 181 is pushed to rotate the first pawl 18 by a corresponding angle, the first pawl 18 can be kept at the angle. Specifically, the first pawl 18 has two state positions, one of which is that the pawl teeth of the first pawl 18 are engaged with the rim teeth of the first ratchet wheel 17, at this time, the rotation-stopping structure works at the rotation-stopping position and exerts the rotation-stopping effect on the cylinder shaft 15. The other state position is that the pawl teeth of the first pawl 18 are separated from the rim teeth of the first ratchet wheel 17, at this time, the rotation-stopping structure works at the non-rotation-stopping position and does not exert the rotation-stopping effect on the cylinder shaft 15.

[0041] Further, in the preferred embodiment of the present application, as shown in Figures 1 to 4 the quick-assembly structure comprises left magnetic blocks 131 provided on the outer disc surface of the connecting disc 13 and right magnetic blocks 141 provided on the outer disc surface of the connecting disc cover 14. In the series-connected at least two self-reeling wire discs 1, the left magnetic blocks 131 on one of the self-reeling wire discs 1 are magnetically connected with the right magnetic blocks 141 on the other adjacent self-reeling wire disc 1. Specifically, in the embodiment of the present application, the number of the left magnetic blocks 131 is set to four, and the number of the right magnetic blocks 141 is also set to four, and the positions are relatively matched. To realize the stability of the series connection, the quick-assembly structure further comprises hexagonal key blocks 151 and hexagonal holes 152 formed on the left and right ends of the cylinder shaft 15, wherein the hexagonal key blocks 151 protrude from the outer disc surface of the connecting disc 13. In the series-connected at least two self-reeling wire discs 1, the hexagonal key blocks 151 on one of the self-reeling wire discs 1 are inserted into the hexagonal holes 152 on the other adjacent self-reeling wire disc 1. Through the insertion assembly of the hexagonal key blocks 151 and the hexagonal holes 152, the relative rotation between the self-reeling wire discs 1 can be prevented.

[0042] On the other hand, the embodiment of the present application also proposes a combined multi-slot wire disc, as shown in Figures 8 to 11As shown, the combined multi-groove wire reel 10 adopts three self-winding wire reels 1 in the above-mentioned embodiments, and adjacent self-winding wire reels 1 are connected in series through quick-connection assembly structure. Each self-winding wire reel 1 on the combined multi-groove wire reel can rotate synchronously, and through the series combined multi-groove wire reel composed of self-winding wire reels 1, synchronous winding and unwinding of multiple ground wires can be realized.

[0043] On the other hand, the embodiment of the present application also proposes a grounding wire storage device, which comprises a large-diameter reel device and a small-diameter reel device, wherein multiple grounding wires are wound on the large-diameter reel device, and the multiple grounding wires are wound on the small-diameter reel device. In the operation of the grounding wire, the operator leads the multiple grounding wires on the large-diameter reel device from the large-diameter reel device, and then winds the led multiple grounding wires on the small-diameter reel device. Then the operator moves the small-diameter reel device to the high-voltage electrical equipment where the grounding wire is needed, and connects the grounding wire on the small-diameter reel device to the high-voltage electrical equipment to be tested. In other words, the small-diameter reel device plays a role of relay automatic winding, and cooperates with the large-diameter reel device to realize fast unwinding and winding of the long-distance grounding wire. Specifically, in the embodiment of the present application, as shown in the drawings, the large-diameter reel device comprises a reel frame 2 and a large-diameter reel 100 rotatably connected to the reel frame 2. The left side of the reel frame 2 is fixed with a fixed disc 3, and the fixed disc 3 is provided with a hand-automatic integrated driving device 4 rotatably connected with the large-diameter reel 100. Through the hand-automatic integrated driving device 4, the winding of the large-diameter reel 100 can be realized manually or electrically. Figures 12 to 14 As shown, the reel frame 2 is integrally formed with two obliquely upward arranged handles 21. Figure 12 As shown, the reel frame 2 is integrally formed with two obliquely upward arranged handles 21.

[0044] Further, in the preferred embodiment of the present application, as shown in the drawings, Figure 16As shown, the hand self-controlled driving device 4 comprises a reduction motor 43 and a hand crank 48, wherein the reduction motor 43 is connected with a large gear 41 through a first bidirectional wedge overrunning clutch 42, the gear shaft of the large gear 41 is fixedly connected with the large wire reel 100. The hand crank 48 is connected with a small gear 45 through a second bidirectional wedge overrunning clutch 47, the inner end of the gear shaft of the small gear 45 is rotatably connected on the fixed disc 3. When the hand driving mode is adopted, the connection between the reduction motor 43 and the large gear 41 is cut off through the first bidirectional wedge overrunning clutch 42. When the hand crank 48 is rotated, the small gear 45 drives the large gear 41 to rotate, and the large gear 41 drives the cylinder shaft of the large wire reel 100 to rotate for winding / unwinding. At this time, the reduction motor 43 is separated from the large gear 41 under the action of the first bidirectional wedge overrunning clutch 42, the rotating large gear 41 does not affect the reduction motor 43, and the reduction motor 43 also does not affect the large gear 41. When the electric driving mode is adopted, the connection between the hand crank 48 and the small gear 45 is cut off through the second bidirectional wedge overrunning clutch 47. When the reduction motor 43 is started, the large gear 41 drives the cylinder shaft of the large wire reel 100 to rotate for winding / unwinding, at this time, the hand crank 48 is separated from the small gear 45 under the action of the second bidirectional wedge overrunning clutch 47, the rotating large gear 41 does not affect the hand crank 48, and the hand crank 48 also does not affect the large gear 41.

[0045] In order to prevent the grounding wire from being retracted under the action of the foot spring 16 when unwinding, the gear shaft of the small gear 45 is further provided with a second rotation stopping structure. When unwinding, the second rotation stopping structure works at the rotation stopping position, at this time, the second rotation stopping structure applies a rotation stopping force to the small gear 45, since the small gear 45 is in transmission engagement with the large gear 41, the large gear 41 is also applied with a rotation stopping force, at this time, the large wire reel 100 can only rotate in the unwinding direction, and cannot be reversely wound, the grounding wire in the unwinding process can be limited and fixed, so as to avoid winding during the unwinding process. When winding, the second rotation stopping structure works at the non-rotation stopping position, at this time, the second rotation stopping structure does not apply a rotation stopping force to the small gear 45, the large wire reel 100 is not constrained, and the unwound grounding wire can be wound on the large wire reel 100 along with the rewinding of the large wire reel 100.

[0046] Further, in the preferred embodiment of the present application, as shown in Figure 13 , Figure 15 and Figure 16 , the second rotation stopping structure comprises a second ratchet wheel 46 fixed on the gear shaft of the small gear 45 and a second pawl 49 connected on the fixed disc 3 and adjustable in swing angle and maintainable. The structure of the second ratchet wheel 46 and the second pawl 49 is the same as that of the first ratchet wheel 17 and the first pawl 18 in the self-winding wire reel 1, and the working principle is also the same, which will not be repeated here.

[0047] Further, in the preferred embodiment of the present application, as shown in Figure 12 and Figure 17 The outer side of the fixed disc 3 is provided with a large gear cover 31 and a small gear cover 32. The large gear 41 is arranged in the large gear cover 31, and the small gear 45, the second ratchet wheel 46 and the second ratchet pawl 49 are arranged in the small gear cover 32. As an exemplary illustration, the first bidirectional wedge overrunning clutch 42 and the second bidirectional wedge overrunning clutch 47 are both CKS type bidirectional wedge overrunning clutches.

[0048] Further, in the preferred embodiment of the present application, when the grounding wire unwinding distance is far, the operator of the small disc wire collecting device is far away from the large disc wire collecting device. In order to facilitate the operator to find the large disc wire collecting device, as shown in Figure 14 The right side of the wire reel stand 2 is further provided with a GPS locator and an alarm. The position of the large disc wire collecting device can be quickly found through the GPS locator, and the sound and light alarm signal can be sent through the alarm, so as to facilitate the field operator to quickly find according to the alarm sound position.

[0049] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A ground line holder, comprising: The application relates to a ground wire collecting device comprising a ground wire collecting device with a large reel and a ground wire collecting device with a small reel, a plurality of ground wires are wound on the large reel, the plurality of ground wires are connected to the small reel, the large reel comprises a reel frame (2) and a large reel (100) rotatably connected to the reel frame (2), a fixing reel (3) is fixed to the left side of the reel frame (2), a hand-automatic driving device (4) is arranged on the fixing reel (3) and is in transmission connection with the large reel (100), the small reel collecting device comprises a combined multi-groove reel, a GPS positioner for conveniently positioning the position of the large reel collecting device and an alarm for emitting sound and light alarm signals are arranged on the right side of the reel frame (2), so that field operators can quickly find the position according to the alarm sound. The combined multi-groove reel comprises three self-reel reels (1), and adjacent self-reel reels (1) are connected through quick-connection assembly structures. The self-reel reel (1) comprises a winding cylinder (11) and baffles (12) fixed to the left and right ends of the winding cylinder (11), characterized in that the outer sides of the left and right end baffles (12) of the winding cylinder (11) are respectively fixed with a connecting disc (13) and a connecting disc cover (14), the two ends of a cylinder shaft (15) rotatably connected with the self-reel reel (1) are respectively rotatably connected with the connecting disc (13) and the connecting disc cover (14), the outer side disc surfaces of the connecting disc (13) and the connecting disc cover (14) are respectively provided with quick-connection assembly structures for connecting a plurality of self-reel reels (1), and elastic self-reel structures and rotation stopping structures are arranged between the cylinder shaft (15) and the winding cylinder (11).

2. The ground line holder of claim 1, wherein, The elastic self-reel structure comprises a ruler spring (16) wound on the cylinder shaft (15), and the inner end of the ruler spring (16) is fixed to the cylinder shaft (15) and the outer end is fixed to the winding cylinder (11).

3. The ground line holder of claim 1, wherein, The rotation stopping structure comprises a first ratchet wheel (17) arranged in the connecting disc cover (14) and a first pawl (18) with adjustable and maintained swing angle, the first ratchet wheel (17) is fixed to the cylinder shaft (15), and the rim ratchet teeth are in stopping cooperation with the first pawl (18).

4. The ground line holder of claim 3, wherein, The first pawl (18) is connected to the inner side disc surface of the connecting disc cover (14) through a damping rotating shaft, a lever (181) is connected to the first pawl (18), an opening (142) is arranged on the outer circumferential disc surface of the connecting disc cover (14), and the outer end of the lever (181) extends to the outside of the connecting disc cover (14) through the opening (142).

5. The ground line holder of claim 1, wherein, The quick-connection assembly structure comprises a left magnetic block (131) arranged on the outer side disc surface of the connecting disc (13) and a right magnetic block (141) arranged on the outer side disc surface of the connecting disc cover (14), and in at least two self-reel reels (1) connected in series, the left magnetic block (131) on one self-reel reel (1) is in magnetic attraction connection with the right magnetic block (141) on the other adjacent self-reel reel (1).

6. The ground line holder of claim 5, wherein, The quick-connection assembly structure further comprises a hexagonal key block (151) and a hexagonal hole (152) formed at the left and right ends of the cylinder shaft (15), the hexagonal key block (151) protruding from the outer disc surface of the connecting disc (13), and in the series connection of at least two self-winding reels (1), the hexagonal key block (151) on one self-winding reel (1) is inserted into the hexagonal hole (152) on the adjacent self-winding reel (1) in alignment.

7. The ground line holder of claim 1, wherein, The hand-automatic driving device (4) comprises a reduction motor (43) and a hand crank (48), the reduction motor (43) is connected to a large gear (41) through a first bidirectional wedge overrunning clutch (42), the gear shaft of the large gear (41) is fixedly connected to the large reel (100), the hand crank (48) is connected to a small gear (45) through a second bidirectional wedge overrunning clutch (47), the inner end of the gear shaft of the small gear (45) is rotatably connected to the fixed disc (3), and the gear shaft of the small gear (45) is further provided with a second rotation-stopping structure.

8. The ground line holder of claim 7, wherein, The second rotation-stopping structure comprises a second ratchet wheel (46) fixed on the gear shaft of the small gear (45) and a second pawl (49) connected to the fixed disc (3) and capable of being adjusted and kept in swing angle.

9. The ground line holder of claim 8, wherein, The outer disc surface of the fixed disc (3) is provided with a large gear cover (31) and a small gear cover (32).

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