A bidirectional extendable spool device

Abstract

The present application provides a bidirectionally extendable spool device, comprising: a bracket provided with a main shaft; a first spool rotatably fixed on the main shaft for winding a first electric wire; a second spool rotatably fixed on the main shaft, arranged adjacent to the first spool for winding a second electric wire; a locking mechanism which, when locked, fixes the adjacent end faces of the first spool and the second spool so that the first spool and the second spool can rotate synchronously; a conductive disc is arranged between the first spool and the second spool; the ends of the first electric wire and the second electric wire are rotatably electrically connected to the conductive disc. The working mode of the electric wire on the spool of the present application can extend in one direction or in two directions, eliminating the need to drag the electric wire, eliminating potential safety hazards, improving the operation efficiency, and being able to flexibly adapt to the on-site environment.

Description

Technical Field

[0001] This application belongs to the field of wire handling devices, and particularly relates to a bidirectionally extendable spool device. Background Art

[0002] During the maintenance and repair of factory equipment, temporary power cords are often used on-site, and the more common one is the spool. The spool provides power for on-site operators. The existing technologies on the market are as follows: (1) The spool and the plug are fixed at the power take-off point, and the operator needs to pull the power strip to work. Once the working area is too far from the maintenance power box, the operator will waste time and effort. The long-distance pulling of the power cord is heavy, and it cannot flexibly pass through the curves on-site; (2) The spool and the power strip are integrated. The operator takes the plug to get power and pulls the spool to work. For example, when performing high-altitude work, due to the spool being too heavy, the operator cannot carry the spool for high-altitude work, which brings difficulties to daily operators.

[0003] Application Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a bidirectionally extendable spool device, which is used to solve the problems that the existing spool is too heavy, cannot flexibly adapt to the on-site environment, is time-consuming and laborious, has low efficiency, and the friction between the power cord and the ground will cause the power cord to be damaged by skinning.

[0005] In order to achieve the above purpose, the embodiments of this application adopt the following technical solutions:

[0006] A bidirectionally extendable spool device includes: a bracket provided with a main shaft; a first spool rotatably fixed on the main shaft for winding a first wire; a second spool rotatably fixed on the main shaft, adjacent to the first spool, for winding a second wire; a locking mechanism, when the locking mechanism is locked, the adjacent end faces of the first spool and the second spool are fixed, so that the first spool and the second spool can rotate synchronously; a conductive disk is provided between the first spool and the second spool; the ends of the first wire and the second wire are rotatably electrically connected to the conductive disk.

[0007] According to the technical solution provided by the embodiments of this application, the conductive disk is provided with a sliding contact guide rail concentric with it. The sliding contact guide rail has a first guide groove on the side close to the first spool and a second guide groove on the side close to the second spool; a first sliding contact wire is slidably electrically connected in the first guide groove, and the first wire is electrically connected to the first sliding contact wire through a first terminal; a second sliding contact wire is slidably electrically connected in the second guide groove; the second wire is electrically connected to the second sliding contact wire through a second terminal.

[0008] According to the technical solution provided by the embodiment of the present application, the locking mechanism includes: a self-resetting pin, straddling two end walls of the first wire shaft and arranged parallel to the main shaft; a limiting member, connected to one end of the self-resetting pin extending out of the outer end face of the first wire shaft; a fixing groove, located on the outer end face of the first wire shaft for fixing the limiting member; a pin card slot, located on the inner end wall of the second wire shaft and clamped with the inserted end of the self-resetting pin.

[0009] According to the technical solution provided by the embodiment of the present application, a spring fixing end extends around the end face of the end of the self-resetting pin away from the second wire shaft, and a spring is sleeved on the self-resetting pin; one end of the spring is fixed on the spring fixing end and the other end is fixed on the outer end wall of the first wire shaft.

[0010] According to the technical solution provided by the embodiment of the present application, the number of the pin card slots is multiple and evenly distributed on a circle concentric with the inner end wall of the second wire shaft.

[0011] According to the technical solution provided by the embodiment of the present application, the free end of the first wire is connected to a socket strip, the free end of the second wire is connected to a plug, and the limiting member is the socket strip.

[0012] According to the technical solution provided by the embodiment of the present application, a limiting groove for accommodating the edge of the inner end wall of the first wire shaft extends from the edge of the inner end wall of the second wire shaft, so that when the first wire shaft rotates, its edge part rotates in the limiting groove.

[0013] According to the technical solution provided by the embodiment of the present application, two telescopable support telescopic rods that can extend upward are connected to the end of the main shaft.

[0014] According to the technical solution provided by the embodiment of the present application, several support legs are connected below the main shaft for supporting the support main body; a support leg cross bar parallel to the main shaft is straddled between the two support legs, and casters are provided at both ends of one support leg cross bar.

[0015] The present application has the following beneficial effects:

[0016] The bidirectional extendable spool device described in this application adopts a first spool and a second spool placed on a bracket along the same main shaft, and a conductive disc is arranged between the first spool and the second spool, enabling the wires located on the first spool and the second spool to be electrified. At the same time, this application also provides a locking device. When the staff extends the wire on the spool, the two spools are locked through the locking device, and the two spools rotate synchronously (in the same direction at the same time); when the staff only needs to extend the wire in one direction, the locking devices of the two spools are loosened, and the two spools can rotate forward or backward simultaneously. The staff can adopt a working mode of extending only in one direction or in two directions according to the actual situation, which greatly improves the working efficiency of the staff and can flexibly adapt to the on-site environment at the same time; at the same time, there is no need to drag the wire, reducing the friction between the wire and the ground and eliminating potential safety hazards of possible accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects, and advantages of this application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 Schematic front view structure diagram of the spool device according to the embodiment of this application;

[0019] Figure 2 Schematic side view structure diagram of the spool device according to the embodiment of this application;

[0020] Figure 3 For Figure 1 Schematic side sectional structure diagram along A-A;

[0021] Figure 4 For Figure 1 Schematic side sectional structure diagram along B-B;

[0022] Figure 5 Schematic connection structure diagram of the sliding contact guide rail and the terminal according to the embodiment of this application;

[0023] Figure 6 Schematic structure diagrams of the self-resetting pin in the uncompressed and compressed states of the spring according to the embodiment of this application.

[0024] 1. Bracket; 11. Bracket leg; 111. Bracket crossbar; 112. Caster; 12. Main shaft; 13. Bracket telescopic rod; 2. First spool; 21. Fixed groove; 3. Second spool; 31. Limit groove; 4. First electric wire; 5. Second electric wire; 6. Locking mechanism; 61. Self-resetting pin; 611. Spring fixed end; 612. Spring; 62. Pin card slot; 63. Limiting member; 7. Conductive disc; 71. First guide groove; 72. Second guide groove; 73. First sliding contact wire; 74. Second sliding contact wire; 75. First terminal; 76. Second terminal; 77. Sliding contact guide rail. Detailed implementation mode

[0025] The following further describes the present application in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, rather than limiting the application. In addition, it should be noted that for the sake of description, only the parts related to the application are shown in the drawings.

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present application in detail with reference to the drawings and embodiments.

[0027] A bidirectional extendable spool device, characterized in that it includes: a bracket 1 provided with a main shaft 12; a first spool 2 rotatably fixed on the main shaft 12 for winding a first electric wire 4; a second spool 3 rotatably fixed on the main shaft 12, adjacent to the first spool 2, for winding a second electric wire 5; a locking mechanism 6, when the locking mechanism 6 is locked, fixing the adjacent end faces of the first spool 21 and the second spool 22, so that the first spool 21 and the second spool 22 can rotate synchronously; a conductive disc 7 is provided between the first spool 2 and the second spool 3; the ends of the first electric wire 4 and the second electric wire 5 are rotatably electrically connected to the conductive disc 7.

[0028] Specifically, as Figure 1As shown, the first wire spool and the second wire spool are coaxially and rotatably placed on the bracket 1, providing a basis for the wire to extend in two directions. The first wire spool and the second wire spool can rotate synchronously or asynchronously. Synchronous rotation means coaxial and in the same direction, and asynchronous rotation means coaxial and in the same or opposite directions. In this way, when the staff only pulls the first wire wound around the first wire spool, or only pulls the second wire wound around the second wire spool, or pulls the first wire and the second wire in two directions simultaneously, the wire realizes the working mode of extending in one direction or in two directions, greatly improving the working efficiency of the staff and being able to flexibly adapt to the on-site environment at the same time. At the same time, there is no need to drag the wire, reducing the friction between the wire and the ground and eliminating potential safety hazards. At the same time, in this application, a conductive disc is arranged between the first wire spool and the second wire spool, enabling the wires at both ends to be energized, facilitating the extension of the wire spool in two directions while ensuring the electrical conductivity between the wires. At the same time, the positional relationship between the conductive disc and the main shaft of the wire spool can ensure that the wire spool can also be energized during rotation, the wire will not be dragged on the ground, reducing the probability of damage to the wire surface and lowering the cost.

[0029] In a preferred embodiment of the present application, a sliding contact guide rail 77 concentric with the conductive disc 7 is provided on the conductive disc 7. A first guide groove 71 is provided on one side of the sliding contact guide rail 77 close to the first wire spool 2, and a second guide groove 72 is provided on the side close to the second wire spool 3. A first sliding contact wire 73 is slidably and electrically connected in the first guide groove 71. The first wire 4 is electrically connected to the first sliding contact wire 73 through a first connection terminal 75. A second sliding contact wire 74 is slidably and electrically connected in the second guide groove 72. The second wire 5 is electrically connected to the second sliding contact wire 74 through a second connection terminal 76.

[0030] Specifically, as Figures 3 - 5 shown, the sliding contact guide rail 77 is composed of several concentric circles of sliding contact guide grooves, and the sliding contact guide grooves are graphite guide grooves, enabling the two ends of the sliding contact wire to be always energized. It should be understood that the number of lines of the first sliding contact wire and the second sliding contact wire is the same, and they are respectively the same as the number of circles of the first sliding contact guide groove and the second sliding contact guide groove. Graphite has good electrical conductivity, and in this application, the wires at both ends are energized through the conductive disc.

[0031] Preferably, the first connection terminal is fixed on the inner end wall of the first wire spool, and the second connection terminal is fixed on the inner end wall of the second wire spool. It should be understood here that the first connection terminal and the second connection terminal are located at positions corresponding to the sliding contact guide rail, facilitating the connection between the sliding contact wire, the sliding contact guide rail, and the wire. Such a structural design enables the staff to unwind the wire wound around the wire spool and extend it in the pulling direction when pulling the wire row or the plug end. At the same time, when the wire spool rotates, the sliding contact wire also rotates in the sliding contact guide rail, without affecting the electrical conductivity of the wires at both ends, greatly facilitating the power-taking work of the staff.

[0032] Specifically, as Figure 3 and Figure 5 shown, the end of the second wire 5 is connected to the second terminal 76, and the inner wall of the second terminal clamps the second wire, making the insertion of the wire more stable and not easily falling off.

[0033] In a preferred embodiment of the present application, the locking mechanism 6 includes: a self - resetting pin 61, spanning across the two end walls of the first spool and arranged parallel to the main shaft 12; a limiting member, connected to one end of the self - resetting pin 61 extending out of the outer end face of the first spool; a fixing groove, located on the outer end face of the first spool for fixing the limiting member; and a pin slot 62, located on the inner end wall of the second spool and engaging with the insertion end of the self - resetting pin 61.

[0034] When the limiting member is fixed in the fixing groove, pressing one end of the self - resetting pin 61 causes the other end of the self - resetting pin 61 to insert into the pin slot, and the adjacent end faces of the first spool and the second spool are connected to achieve locking and fixing; when the limiting member is removed from the fixing groove, the self - resetting pin automatically resets, and its insertion end disengages from the pin slot, and the first spool and the second spool are released from fixation. The outer end face of the first spool is the end face away from the second spool; the inner end wall of the second spool is the end wall close to the first spool.

[0035] In a preferred embodiment of the present application, a spring fixing end 611 extends radially around the end face of the self - resetting pin 61 away from the second spool 3, and a spring 612 is sleeved on the self - resetting pin 61; one end of the spring 612 is fixed to the spring fixing end 611, and the other end is fixed to the outer end wall of the first spool 21.

[0036] Specifically, as Figure 6 shown, when the limiting member 63 presses the spring fixing end 611, the self - resetting pin 61 extends into the pin slot 62, and when the pressing on the spring fixing end 611 is cancelled, the self - resetting pin 61 automatically resets to the state of not extending into the pin slot 62. Here, it can be understood that after a spring 612 is sleeved on one end of the self - resetting pin 61, the other end sequentially passes through the outer end wall of the first spool, the inner end wall of the first spool, and the inner end wall of the second spool, and is axially slidably connected to the three.

[0037] The spring provided on the self - resetting pin 24 realizes the automatic reset function of the self - resetting pin 24. At the same time, this self - reset structure is simple, low - cost, and easy to implement. The position of the fixing groove 21 corresponds to the position of the self - resetting pin 61, so that when the limiting member 63 is installed on the fixing groove 21, it can just press the self - resetting pin 61.

[0038] In a preferred embodiment of the present application, the number of the pin slots 62 is multiple, and they are evenly distributed on a circle concentric with the inner end wall of the second spool.

[0039] Specifically, as Figures 3 - 4 shown, the number of the pin slots 62 is multiple, and they are evenly distributed on the inner end wall of the second spool 3, and the distance from each pin slot 62 to the center of the end wall is the same. The inner end wall of the second spool 3 is the end wall relatively close to the first spool 2. The multiple pin slots 62 facilitate the alignment of the self-resetting pin 61 and the pin slots 62. That is, when the first spool and the second spool rotate out of sync, the self-resetting pin 61 can quickly align with the nearest pin slot 62 to lock and fix the first spool 2 and the second spool 3. Here, it should be understood that having only one pin slot 25 is also sufficient.

[0040] In a preferred embodiment of the present application, the free end of the first wire 4 is connected to a socket strip, the free end of the second wire 5 is connected to a plug, and the limiting member 63 is a socket strip.

[0041] Specifically, when the socket strip is fixed on the fixing groove 21, it just presses the self-resetting pin 61 into the pin slot 62, so that the first spool 2 and the second spool 3 are locked and fixed, and the wire can be extended from the plug end, and the first spool 2 and the second spool 3 rotate synchronously; when the socket strip is removed from the fixing groove 21, the self-resetting pin 61 resets to only pass through the inner end wall of the first spool 2, and the wire can be extended from both the plug and the socket strip ends respectively, so that the first spool 2 and the second spool 3 rotate out of sync, and the wires at both the socket strip and the plug ends can be extended.

[0042] The setting of the fixing groove 21 can, on the one hand, fix the limiting member or the socket strip to prevent the working environment from being messy; on the other hand, when the limiting member is a socket strip, the socket strip also acts as a function of pressing the self-resetting pin into the pin slot for limiting, realizing the locking and fixing of the first spool and the second spool. The socket strip is convenient for fixing and plugging other plugs, and the wire at the plug end can be extended. When the socket strip is removed, the self-resetting pin automatically resets under the action of the spring, the first spool and the second spool are unlocked, and the wires at both the socket strip and the plug ends can be extended.

[0043] In a preferred embodiment of the present application, a limiting groove 31 for accommodating the edge of the inner end wall of the first spool 2 extends from the edge of the inner end wall of the second spool 3, so that when the first spool 2 rotates, its edge part rotates in the limiting groove 31.

[0044] Specifically, the inner end wall of the second spool 3 is the end wall relatively close to the first spool 2; the inner end wall of the first spool 2 is the end wall relatively close to the second spool 3.

[0045] Please further refer to Figure 1, the limiting groove 31 provided at the inner end wall edge of the second spool 3 allows the inner end wall edge of the first spool 2 to rotate within the limiting groove 31, making the structure more stable and secure and not easily detached. When the first spool and the second spool are not easily detached and their positions are relatively fixed, it also facilitates the alignment of the self - resetting pin 61 and the pin slot 62.

[0046] In a preferred embodiment of the present application, two upwardly telescopic support telescopic rods 13 are connected to the end of the main shaft 12.

[0047] Specifically, when the support telescopic rod 13 is not in use, it is in a contracted state, and the telescopic end extends into the fixed end; when in use, the staff can manually adjust it to extend to a height suitable for the human body according to needs, which is convenient for operation.

[0048] In a preferred embodiment of the present application, a number of support legs 11 are connected below the main shaft 12 for supporting the main body of the support 1; a support leg cross - bar 111 parallel to the main shaft 12 is bridged between the two support legs 11, and casters 112 are provided at both ends of one support leg cross - bar 111.

[0049] Specifically, as Figures 1 - 4 shown, the number of the support legs 11 is two pairs. Looking at the support from the side, the two support legs 11 and the support telescopic rod 13 form a "person" - shaped structure, which is more stable. The support leg cross - bar 111 makes the support structure more stable. Casters 112 are only provided at the bottoms of the two support legs 11 located in the length direction of the support, which is convenient for the staff to move the spool device of the present application, saving time and effort.

[0050] Application scenario: The bidirectional extendable spool device described in the present application is divided into two working modes. The first mode is the unidirectional extension mode: Fix the socket on the fixed slot, the spring fixed end of the self - resetting pin is pressed down, and the other end of the self - resetting pin extends into the pin slot of the second spool, connecting the two separated first spools and the second spool into a whole to achieve synchronous rotation. At this time, the plug end can be used to extend the electric wire. After fixing the plug at the power source, the device can be pushed to move; The second mode is the bidirectional extension mode: Remove the socket from the fixed slot, one end of the self - resetting pin automatically resets and pops out, the other end of the self - resetting pin disengages from the pin slot, the first spool and the second spool are separated into two independent spools, and electricity is conducted through the conductive disk in the middle to achieve bidirectional extension operation. Electric wires can be extended either from the socket end or from the plug end.

[0051] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the application concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the present application.

Claims

1. A bidirectional extendable spool device, characterized in that, Comprising: A bracket (1) provided with a main shaft (12); A first spool (2) rotatably fixed on the main shaft (12) for winding a first electric wire (4); A second spool (3) rotatably fixed on the main shaft (12), arranged adjacent to the first spool (2) for winding a second electric wire (5); A locking mechanism (6), when the locking mechanism (6) is locked, fixing the adjacent end faces of the first spool (21) and the second spool (22) so that the first spool (21) and the second spool (22) can rotate synchronously; A conductive disc (7) is provided between the first spool (2) and the second spool (3); the ends of the first electric wire (4) and the second electric wire (5) are rotatably electrically connected to the conductive disc (7); A sliding contact guide rail (77) concentric with the conductive disc (7) is provided on the conductive disc (7), a first guide groove (71) is provided on the side of the sliding contact guide rail (77) close to the first spool (2), and a second guide groove (72) is provided on the side close to the second spool (3); A first sliding contact wire (73) is slidably electrically connected in the first guide groove (71), and the first electric wire (4) is electrically connected to the first sliding contact wire (73) through a first terminal (75); A second sliding contact wire (74) is slidably electrically connected in the second guide groove (72); the second electric wire (5) is electrically connected to the second sliding contact wire (74) through a second terminal (76); The first terminal is fixed on the inner end wall of the first spool, and the second terminal is fixed on the inner end wall of the second spool; The locking mechanism (6) includes: A self - resetting pin (61) straddling the two end walls of the first spool (2) and arranged parallel to the main shaft (12); A limiting member (63) connected to one end of the self - resetting pin (61) extending out of the outer end face of the first spool (2); A fixing groove (21) located on the outer end face of the first spool (2) for fixing the limiting member (63); A pin slot (62) located on the inner end wall of the second spool (3) and clamped with the inserted end of the self - resetting pin (61).

2. The bidirectional extendable spool device according to claim 1, wherein A spring fixing end (611) extends around the end face of the self - resetting pin (61) away from the second spool (3), and a spring (612) is sleeved on the self - resetting pin (61); One end of the spring (612) is fixed on the spring fixing end (611), and the other end is fixed on the outer end face of the first spool (21).

3. A bidirectional extendable spool device according to claim 1, characterized in that, The number of the pin slots (62) is multiple and evenly distributed on a circle concentric with the inner end wall of the second spool.

4. A bidirectional extendable spool device according to claim 1, wherein The free end of the first electric wire (4) is connected to a socket strip, the free end of the second electric wire (5) is connected to a plug, and the limiting member (63) is a socket strip.

5. A bidirectional extendable spool device according to claim 1, characterized in that, A limiting groove (31) for accommodating the edge of the inner end wall of the first spool (2) extends from the edge of the inner end wall of the second spool (3), so that when the first spool (2) rotates, its edge part rotates in the limiting groove (31).

6. A bidirectional extendable spool device according to claim 1, characterized in that, Two telescopable bracket telescopic rods (13) are connected to the end of the main shaft (12).

7. A bidirectional extendable spool device according to claim 1, characterized in that, A number of support legs (11) are connected below the main shaft (12) to support the main body of the support (1); a support leg crossbar (111) parallel to the main shaft (12) is bridged between the two support legs (11), and casters (112) are provided at both ends of one support leg crossbar (111).

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