Cord reels and power equipment

Abstract

The present invention relates to the field of electric power technology, and more specifically, to a cable reel and electric power equipment. The cable reel includes a limiter, a rotatable cable reel and a cable take-up knob; a plurality of matching parts are arranged on the circumference of the cable take-up knob, and the limiter has a protruding arm; the limiter is elastically connected to the cable reel so that the protruding arm is connected with the matching part by snapping, or the protruding arm is disengaged from the matching part; and when the tension on the wire harness is greater than the resistance between the limiter and the cable take-up knob, the cable reel and the cable take-up knob slide and match with each other. It can achieve the function of preventing excessive cable take-up.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, in particular to a cable reel and electric power equipment. Background Art

[0002] With the development of economy and the progress of society, the storage of power cords and other wires has become an indispensable demand in daily life. Various types of cable reels have gradually entered people's daily lives.

[0003] The existing wire reel has a winding structure with a coil spring as the power part, which can only realize one-way winding; and the winding force is uncontrollable during winding. Specifically, the force of the coil spring changes with the deformation. When the coil spring is greatly deformed, the wire is easily broken due to excessive force, which greatly poses a safety hazard. Summary of the invention

[0004] The objects of the present invention include, for example, providing a wire reel and an electric power device, which can prevent problems such as wire breakage caused by excessive wire winding.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, an embodiment of the present invention provides a wire reel for storing a wire harness, comprising a stopper, and a rotatably matched wire reel and a wire take-up knob;

[0007] The wire take-up knob is provided with a plurality of matching parts on its circumference, and the limiter has a protruding arm;

[0008] The limiting member is elastically connected to the cable reel so that the protruding arm is connected with the matching portion by a snap-fit ​​connection, or the protruding arm is separated from the matching portion;

[0009] When the tension applied to the wire harness is greater than the resistance between the position-limiting member and the wire-reeling knob, the wire reel and the wire-reeling knob slide in cooperation with each other.

[0010] Such a wire reel drives the limiter to rotate by rotating the wire take-up knob. When the wire harness is not completely tightened, there is no relative movement between the limiter and the wire take-up knob (tightly connected). At this time, the wire take-up knob and the wire reel remain relatively still. When the limiter moves, the wire harness can be driven to move.

[0011] When the wire harness is fully tightened, the tensioning force on the wire harness is greater than the resistance between the limiter and the wire take-up knob, and relative movement occurs between the limiter and the wire take-up knob, resulting in displacement and sliding. The wire take-up knob cannot drive the limiter, the cable reel and the wire harness to move, thereby achieving the function of preventing excessive wire take-up.

[0012] In an optional embodiment, the limiting member further includes an elastic member;

[0013] The protruding arm is arranged on the winding drum through the elastic member. The elastic member can not only maintain the clamping state of the protruding arm of the limiter and the matching part of the winding knob, but also ensure the function of preventing excessive winding when the tension force on the wire harness is greater than the resistance between the limiter and the winding knob.

[0014] In an optional embodiment, the elastic member and the protruding arm are integrally formed. The integrally formed elastic member and the protruding arm make the overall structure of the limiter simpler, facilitate processing and manufacturing, and help improve assembly efficiency and economic benefits.

[0015] In an optional embodiment, the limiting member is a spring. The spring has the characteristics of low cost, reliable function and significant economic benefits.

[0016] In an optional embodiment, the matching portion is a tooth-shaped opening provided on the take-up knob;

[0017] The end of the protruding arm protrudes in a tooth shape, and the angle of the matching portion is greater than the angle of the protruding arm.

[0018] This ensures that when the tension applied to the wire harness is greater than the resistance between the limiter and the take-up knob, the protruding arm and the mating portion can be smoothly disengaged, so that the cable reel and the take-up knob can slide together at this time, thereby ensuring the function of preventing excessive take-up.

[0019] In an optional embodiment, the angle of the toothed opening of the mating portion is 100°±10°;

[0020] The tooth angle of the protruding arm is 90°±10°.

[0021] In an optional embodiment, the openings of the matching portions are symmetrically arranged, and the protruding arms are symmetrically arranged.

[0022] The symmetrically arranged matching parts and the symmetrically arranged protruding arms ensure that the reel is not affected by the directionality of the line reeling, and can realize the left and right bidirectional line reeling function.

[0023] In an optional embodiment, it further includes a conductive copper ring disposed on the cable reel, wherein the conductive copper ring is electrically connected to the wiring harness.

[0024] Thereby, when the wiring harness needs to transmit power, the cable reel can always keep the power supply unobstructed.

[0025] In an optional embodiment, it further includes a bracket and a conductive spring;

[0026] The conductive spring sheet is arranged on the bracket, and the conductive spring sheet abuts against the conductive copper ring.

[0027] The arrangement of the bracket and the conductive spring ensures the stability and reliability of power transmission when the wire take-up device is taking up the wire.

[0028] In a second aspect, an embodiment of the present invention provides an electric power device, wherein the electric power device includes the cable reel described in any one of the aforementioned embodiments.

[0029] The beneficial effects of the embodiments of the present invention include, for example:

[0030] The wire reel includes a limiter, a wire reel and a wire take-up knob. When in use, the wire reel drives the limiter to rotate by turning the wire take-up knob. When the wire harness is not fully tightened, the wire take-up knob and the wire reel remain relatively stationary, which can drive the wire harness to move around. When the wire harness is fully tightened, the tension on the wire harness is greater than the resistance between the limiter and the wire take-up knob, and relative sliding occurs between the limiter and the wire take-up knob. The wire take-up knob cannot drive the limiter, the wire reel and the wire harness to move, thereby achieving the function of preventing excessive wire take-up. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the assembly of a cable reel according to an embodiment of the present invention;

[0033] Figure 2 is a structural schematic diagram of a cable reel according to an embodiment of the present invention;

[0034] Figure 3 for Figure 2 A cross-sectional view of

[0035] Figure 4 for Figure 2 A schematic diagram of the structure from another perspective.

[0036] Icons: 10-cable reel; 11-conductive spring; 12-bracket; 13-conductive copper ring; 14-limiting member; 141-protruding arm; 142-elastic member; 15-cable reel; 16-wiring harness; 17-reeling knob; 171-matching part. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0042] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0043] With the development of economy and the progress of society, the storage of power cords and other wires has become an indispensable demand in daily life. Various types of cable reels have gradually entered people's daily lives.

[0044] The common reel is composed of a single reel, and mainly uses manual one-way reeling. In order to meet the diverse needs, some reeling structures with coil springs as power parts have gradually appeared on the market. In this structure, a coil spring is set between the wire and the reel as the reeling power.

[0045] However, since the deformation direction of the coil spring is single, the wire take-up device of this structure can only realize one-way wire taking-up, and the wire taking-up force is uncontrollable.

[0046] Moreover, the force of the coil spring will change with the deformation. When the coil spring is greatly deformed, the wire may be broken due to excessive force, which greatly poses a safety hazard.

[0047] In order to overcome the above problems, a cable reel 10 is provided in the following embodiment.

[0048] Please refer to Figure 1 The present embodiment provides a cable reel 10 for storing a cable harness 16 , including a limit member 14 , a cable reel 15 and a cable take-up knob 17 .

[0049] The winding reel 15 and the take-up knob 17 are rotatably matched;

[0050] The take-up knob 17 is provided with a plurality of matching portions 171 on its circumference, and the stopper 14 has a protruding arm 141;

[0051] The stopper 14 is elastically connected to the cable reel 15 so that the protruding arm 141 is snap-connected with the matching portion 171 or the protruding arm 141 is disengaged from the matching portion 171;

[0052] When the tension applied to the wire harness 16 is greater than the resistance between the stopper 14 and the wire take-up knob 17 , the wire reel 15 and the wire take-up knob 17 slide and cooperate with each other.

[0053] Such a wire reel 10 drives the limiter 14 to rotate by rotating the wire take-up knob 17. When the wire harness 16 is not completely tightened, the limiter 14 and the wire take-up knob 17 (tightly connected) do not move relative to each other. At this time, the wire take-up knob 17 and the wire reel 15 remain relatively still. When the limiter 14 moves, the wire harness 16 can be driven to move around.

[0054] When the wire harness 16 is fully tightened, the tensioning force on the wire harness 16 is greater than the resistance between the limit member 14 and the wire take-up knob 17, and relative movement occurs between the limit member 14 and the wire take-up knob 17, resulting in displacement and sliding. The wire take-up knob 17 cannot drive the limit member 14, the wire reel 15 and the wire harness 16 to move, thereby achieving the function of preventing excessive wire take-up.

[0055] Please refer to Figures 1 to 4 , to understand more structural details of the reel 10.

[0056] As can be seen from the figure, the take-up knob 17 is a cylindrical tube structure, and a plurality of continuously arranged matching parts 171 are circumferentially arranged on the inner wall of the axial end of the cylinder. Optionally, the matching part 171 is in the shape of a triangular opening recessed in the radial direction.

[0057] The cable reel 15 is a disc-shaped structure. The cable reel 15 and the cable take-up knob 17 are coaxially arranged and the two are rotatably connected.

[0058] Furthermore, the limiting member 14 is symmetrically arranged on the cable reel 15 along the circumference of the cable reel 15 , thereby ensuring that when the cable reel 15 and the take-up knob 17 cooperate, the force between the two can be more uniform and reliable.

[0059] It should be noted that the shapes of the take-up knob 17 and the winding reel 15 can also be other shapes, as long as the two can rotate together; the limit member 14 can be one or more than two, as long as the two can be elastically engaged with each other, and when the wire harness 16 is fully tightened, the tensioning force on the wire harness 16 is greater than the resistance between the limit member 14 and the take-up knob 17, relative sliding occurs between the limit member 14 and the take-up knob 17. This is just an example and is not limited to it.

[0060] The cable reel 10 further includes a conductive copper ring 13, a bracket 12 and a conductive spring 11 arranged on the cable reel 15, and the conductive copper ring 13 is electrically connected to the wire harness 16. The conductive copper ring 13 enables the cable reel 10 to always maintain smooth power supply when the wire harness 16 needs to transmit power. The conductive spring 11 is arranged on the bracket 12, and the conductive spring 11 abuts against the conductive copper ring 13. The arrangement of the bracket 12 and the conductive spring 11 ensures the stability and reliability of power transmission when the cable reel is reeling.

[0061] Furthermore, the stopper 14 further includes an elastic member 142; the protruding arm 141 is disposed on the cable reel 15 through the elastic member 142. The elastic member 142 can not only maintain the engagement state between the protruding arm 141 of the stopper 14 and the matching portion 171 of the cable reel knob 17, but also ensure the function of preventing excessive cable reeling when the tension applied to the cable harness 16 is greater than the resistance between the stopper 14 and the cable reel knob 17.

[0062] Optionally, in this embodiment of the present invention, the elastic member 142 is integrally formed with the protruding arm 141. The integrally formed elastic member 142 and the protruding arm 141 make the overall structure of the stopper 14 simpler, facilitate processing and manufacturing, and help improve assembly efficiency and economic benefits.

[0063] It should be noted that, in other embodiments of the present invention, the elastic member 142 and the protruding arm 141 may also be provided separately, which is not limited here.

[0064] In this embodiment of the present invention, the stopper 14 is a spring. The spring has the characteristics of low cost and reliable function, and has significant economic benefits. Further, it can be seen from the figure that the stopper 14 is a special-shaped spring made of metal wire, one end of the spring is embedded in the winding drum 15, and the other end of the spring is bent to form a protruding arm 141.

[0065] In this embodiment, the matching portion 171 is a tooth-shaped opening provided on the take-up knob 17 ; the end of the protruding arm 141 is tooth-shaped and protrudes, and the angle of the matching portion 171 is greater than the angle of the protruding arm 141 .

[0066] This ensures that when the tension applied to the wire harness 16 is greater than the resistance between the limiter 14 and the take-up knob 17, the protruding arm 141 and the mating portion 171 can be smoothly disengaged, so that the cable reel 15 and the take-up knob 17 can slide together at this time, thereby ensuring the function of preventing excessive take-up.

[0067] Optionally, in this embodiment of the present invention, the angle of the toothed opening of the matching portion 171 is 100°±10°; the toothed angle of the protruding arm 141 is 90°±10°.

[0068] Furthermore, in this embodiment of the present invention, the opening of the matching portion 171 is symmetrically arranged, and the protruding arm 141 is symmetrically arranged. The symmetrically arranged matching portion 171 and the symmetrically arranged protruding arm 141 ensure that the reel 10 is not affected by the winding direction and can realize the left and right bidirectional winding function.

[0069] It should be noted that the mating parts 171 here are symmetrical along the radial direction of the take-up knob 17; the protruding arms 141 are symmetrical along the radial direction of the winding reel 15, so as to ensure more outstanding symmetry and improve the reliability of the two-way take-up function.

[0070] When in use, the take-up knob 17 rotates, driving the limiter 14 to move;

[0071] When the wire harness 16 is not completely tightened, there is no relative movement between the stopper 14 and the take-up knob 17, which can drive the stopper 14 to move. At this time, since the stopper 14 is fixedly connected to the winding drum 15, the conductive copper ring 13, and the wire harness 16, when the stopper 14 moves, the power cord can be driven to move.

[0072] When the wire harness 16 is fully tightened, the tensioning force on the wire harness 16 is greater than the resistance between the limit member 14 and the wire take-up knob 17, and relative movement occurs between the limit member 14 and the wire take-up knob 17, resulting in displacement and sliding. The wire take-up knob 17 cannot drive the limit member 14 and the winding reel 15, the conductive copper ring 13, and the wire harness 16 to move, thereby achieving the function of preventing excessive wire take-up.

[0073] Similarly, since the angles of the matching portion 171 on the take-up knob 17 and the protruding arm 141 of the limiting member 14 are radially symmetrical, they are not affected by directionality and can achieve a left-right bidirectional take-up function.

[0074] In a second aspect, an embodiment of the present invention provides an electric power device, the electric power device comprising the cable reel 10 of any one of the aforementioned embodiments.

[0075] In summary, the embodiment of the present invention provides a cable reel 10 and an electric power device, which have at least the following advantages:

[0076] The wire reel 10 drives the limit member 14 to rotate by rotating the wire take-up knob 17. When the wire harness 16 is not fully tightened, the wire take-up knob 17 and the wire reel 15 remain relatively still, which can drive the wire harness 16 to move around. When the wire harness 16 is fully tightened, the tensioning force on the wire harness 16 is greater than the resistance between the limit member 14 and the wire take-up knob 17, and relative sliding occurs between the limit member 14 and the wire take-up knob 17. The wire take-up knob 17 cannot drive the limit member 14, the wire reel 15 and the wire harness 16 to move, thereby realizing the function of preventing excessive wire winding.

[0077] At the same time, the cable reel 10 can realize the cable reeling function in two directions in the circumferential direction.

[0078] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A cable reel for storing a cable harness, characterized in that: It includes a limiter, and a rotatable and matching winding reel and a winding knob; The wire take-up knob is provided with a plurality of matching parts on its circumference, and the limiter has a protruding arm; The limiting member is elastically connected to the cable reel so that the protruding arm is connected with the matching portion by a snap-fit ​​connection, or the protruding arm is separated from the matching portion; When the tension applied to the wire harness is greater than the resistance between the stopper and the wire-reeling knob, the wire reel and the wire-reeling knob slide relative to each other; The matching portion is a tooth-shaped opening provided on the take-up knob; the end of the protruding arm is tooth-shaped and protrudes, and the angle of the matching portion is greater than the angle of the protruding arm; It also includes a conductive copper ring disposed on the cable reel; the conductive copper ring is electrically connected to the wiring harness; When in use, the winding knob is rotated to drive the limiter to move; when the wire harness is not completely tightened, there is no relative movement between the limiter and the winding knob, which can drive the limiter to move; at this time, since the limiter is fixedly connected to the winding reel, the conductive copper ring, and the wire harness, when the limiter moves, it can drive the power cord to move; When the wiring harness is fully tightened, the tensioning force on the wiring harness is greater than the resistance between the limiter and the wire-winding knob, and relative movement occurs between the limiter and the wire-winding knob, resulting in displacement and sliding. The wire-winding knob cannot drive the limiter, the wire reel, the conductive copper ring, and the wiring harness to move, thereby preventing excessive wire winding.

2. The cable reel according to claim 1, characterized in that: The limiting member also includes an elastic member; The protruding arm is arranged on the cable reel through the elastic member.

3. The cable reel according to claim 2, characterized in that: The elastic member is integrally formed with the protruding arm.

4. The cable reel according to claim 3, characterized in that: The limiting component is a spring.

5. The cable reel according to claim 1, characterized in that: The angle of the toothed opening of the mating portion is 100°±10°; The tooth angle of the protruding arm is 90°±10°.

6. The cable reel according to claim 1, characterized in that: The openings of the matching parts are symmetrically arranged, and the protruding arms are symmetrically arranged.

7. The cable reel according to claim 1, characterized in that: Also includes a bracket and a conductive spring; The conductive spring sheet is arranged on the bracket, and the conductive spring sheet abuts against the conductive copper ring.

8. An electric power equipment, characterized in that: The electric power equipment comprises the cable reel according to any one of claims 1-7.

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