Rotary power cord with anti-winding structure

Abstract

The utility model relates to power line technical field, concretely is rotary power line with anti -winding structure, including power line body, the inside of shell is provided with anti -winding mechanism, the inside of protective sheath is provided with fire -retardant mechanism, the surface of first input power line, second input power line, first output power line and second output power line is provided with wear -resisting mechanism. The utility model not only makes power line use not to produce winding, effectively overcomes the problem of not rotating not flexible easy winding of past power line, makes power line use can avoid power line when encountering open fire burning and fusing, makes power line more safe when using, and makes power line use can avoid power line when using wear and tear, prolongs the service life of power line, simultaneously, has improved the wear -resisting effect of power line.

Description

Technical Field

[0001] This utility model relates to the field of power cord technology, specifically a rotary power cord with an anti-tangle structure. Background Technology

[0002] Power cords are wires that transmit current. According to their uses, power cords can be divided into AC power cords and DC power cords. Since the power cords and plugs of power tools are fixedly connected without any anti-tangling device, the power cords are easy to get tangled during the use of power tools, which affects the use of power tools and makes it inconvenient for users to operate. In order to meet the needs of users, a rotary power cord with an anti-tangling structure is needed.

[0003] Existing power cords, when tangled, usually require unplugging the power source to straighten them, impacting work efficiency. Their anti-tangling properties are insufficient, making them prone to tangling and causing them to become stiff and inflexible. Furthermore, their fire-retardant properties need improvement, making them susceptible to combustion and melting when exposed to open flames, compromising safety. In addition, their moisture-proof and abrasion-resistant properties are inadequate, leading to wear and tear, shortening their lifespan, and reducing their overall durability. Utility Model Content

[0004] The purpose of this invention is to provide a rotary power cord with an anti-tangle structure to solve the problems mentioned in the background art, such as insufficient anti-tangle effect, inadequate fire resistance and flame retardancy, and insufficient moisture resistance and wear resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary power cord with an anti-tangle structure, comprising a power cord body, the power cord body including a first input power cord, a second input power cord, a first output power cord, and a second output power cord, a housing provided on one side of the power cord body, an inner shaft mounted on the surface of the housing, the first output power cord mounted inside the inner shaft, and the second output power cord also mounted inside the inner shaft, protective sleeves provided inside the first input power cord, the second input power cord, the first output power cord, and the second output power cord, an anti-tangle mechanism provided inside the housing, a fire-retardant mechanism provided inside the protective sleeve, and wear-resistant mechanisms provided on the surfaces of the first input power cord, the second input power cord, the first output power cord, and the second output power cord.

[0006] Preferably, a second mounting cover is installed on the surface of the housing, and a first mounting cover is also installed on the surface of the housing. The first mounting cover and the second mounting cover are connected by screws. The first mounting cover and the second mounting cover are used to fix the first input power line and the second input power line to the surface of the housing. A shielding layer is adhered to the inner wall of the protective sleeve. Multiple sets of wires are arranged inside the shielding layer, and a filler material is filled between the wires and the shielding layer.

[0007] Preferably, the anti-winding mechanism comprises a first bearing outer ring, a second bearing outer ring, rotating balls, a second bearing inner ring, and a first bearing inner ring. The first bearing outer ring is installed on the inner wall of the housing, and the first bearing inner ring is disposed on the inner side of the first bearing outer ring. The second bearing outer ring is installed on the inner wall of the housing, and the second bearing inner ring is disposed on the inner side of the second bearing outer ring. Multiple sets of rotating balls are arrayed on the inner walls of the first and second bearing outer rings, respectively. The rotating balls rotate and engage with the inner walls of the first and second bearing outer rings, respectively, and the surfaces of the rotating balls contact the surfaces of the first and second bearing inner rings, respectively.

[0008] Preferably, one end of the first input power cord is connected to the outer ring of the first bearing, and the other end of the first input power cord is connected to a plug. One end of the second input power cord passes through the housing and is connected to the outer ring of the second bearing, and the other end of the second input power cord is connected to a plug. One end of the first output power cord passes through the inner shaft and is connected to the inner ring of the second bearing, and the other end of the first output power cord extends to the outside of the inner shaft and is connected to a power tool. One end of the second output power cord passes through the inner shaft and the inner ring of the second bearing in sequence and is connected to the inner ring of the first bearing. The other end of the second output power cord extends to the outside of the inner shaft and is connected to a power tool. One end of the inner shaft passes through the inner ring of the second bearing and the inner ring of the first bearing in sequence and extends into the interior of the housing.

[0009] Preferably, the fireproof and flame-retardant mechanism comprises a first flame-retardant layer, a second flame-retardant layer, a cavity, and a heat insulation layer. The first mounting cover has a cavity inside, and the cavity contains a first flame-retardant layer. A second flame-retardant layer is adhered to the surface of the first flame-retardant layer. The surface of the second flame-retardant layer away from the first flame-retardant layer is in contact with the inner wall of the cavity. A heat insulation layer is adhered to the surface of the first flame-retardant layer away from the second flame-retardant layer. The surface of the heat insulation layer away from the first flame-retardant layer is in contact with the inner wall of the cavity.

[0010] Preferably, the wear-resistant mechanism includes a wear-resistant outer ring, a waterproof coating, a thermoplastic elastomer, and a polyurethane protective layer. The surface of the second output power line is wrapped with a waterproof coating, the surface of the waterproof coating is adhered with a thermoplastic elastomer, the surface of the thermoplastic elastomer away from the waterproof coating is wrapped with a polyurethane protective layer, and the surface of the polyurethane protective layer away from the thermoplastic elastomer is adhered with a wear-resistant outer ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the rotating power cord with anti-tangling structure not only prevents the power cord from tangling during use, effectively overcoming the problems of non-rotation, inflexibility and easy tangling of previous power cords, but also prevents the power cord from burning and melting when exposed to open flame, making the power cord safer to use. In addition, it prevents the power cord from being worn during use, extending the service life of the power cord, and at the same time, improving the wear resistance of the power cord.

[0012] 1. By incorporating an anti-tangling mechanism, when external equipment rotates, the relative rotation between the outer and inner rings of the second bearing and the first bearing, as well as between the outer and inner rings of the first bearing, allows current to pass through. Through the rotational action of the inner and outer rings of the second bearing, the inner and outer rings of the first bearing, and the rotating ball bearings, the first input power line, the second input power line, the first output power line, and the second output power line can be prevented from tangling. The outer ring of the first bearing, the outer ring of the second bearing, the rotating ball bearing, the inner ring of the second bearing, and the inner ring of the first bearing are made of highly conductive materials, ensuring stable connection, preventing loose connections, and allowing for flexible rotation. This achieves the anti-tangling function of the power line, preventing tangling during use and effectively overcoming the previous problems of power lines being non-rotating, inflexible, and prone to tangling.

[0013] 2. By incorporating a fire-retardant mechanism, the combined action of the second and first flame-retardant layers within the cavity prevents the power cord from burning and breaking when exposed to a fire source, thus improving the fire-retardant performance of the power cord. Simultaneously, the insulation layer prevents the power cord from breaking under excessive tension, ensuring its normal operation and extending its lifespan. This achieves the fire-retardant function of the power cord, preventing it from burning and melting when exposed to an open flame, making it safer to use.

[0014] 3. By incorporating a wear-resistant mechanism and a waterproof coating, the power cord is protected from moisture and water ingress, ensuring its durability and usability. The thermoplastic elastomer, polyurethane protective layer, and wear-resistant outer ring further enhance its wear resistance during use, preventing damage from external objects and making the power cord more durable and longer-lasting. This achieves moisture-proof and wear-resistant functionality, preventing wear and tear during use and extending the power cord's lifespan. Simultaneously, it improves the power cord's wear resistance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0017] Figure 3 This is an enlarged side view sectional diagram of the present invention;

[0018] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 For the present utility model Figure 4 Enlarged structural diagram of the fire-resistant and flame-retardant mechanism;

[0020] Figure 6 For the present utility model Figure 4 Enlarged structural diagram of the wear-resistant mechanism.

[0021] In the diagram: 1. Power cord body; 10. First input power cord; 11. Second input power cord; 12. First output power cord; 13. Second output power cord; 14. Outer shell; 15. Inner shaft; 16. First mounting cover; 17. Second mounting cover; 18. Filler material; 19. Shielding layer; 110. Protective sleeve; 111. Wire; 2. Anti-winding mechanism; 21. First bearing outer ring; 22. Second bearing outer ring; 23. Rotating ball; 24. Second bearing inner ring; 25. First bearing inner ring; 3. Fireproof and flame-retardant mechanism; 31. First flame-retardant layer; 32. Second flame-retardant layer; 33. Cavity; 34. Heat insulation layer; 4. Wear-resistant mechanism; 41. Wear-resistant outer ring; 42. Waterproof coating; 43. Thermoplastic elastomer; 44. Polyurethane protective layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0023] The structure of the rotary power cord with an anti-tangle structure provided by this utility model is as follows: Figures 1 to 4 As shown, the device includes a power cord body 1, which comprises a first input power cord 10, a second input power cord 11, a first output power cord 12, and a second output power cord 13. A housing 14 is provided on one side of the power cord body 1. One end of the first input power cord 10 and the second input power cord 11 extends into the housing 14. An inner shaft 15 is mounted on the surface of the housing 14. The first output power cord 12 and the second output power cord 13 are both installed inside the inner shaft 15. One end of each output power cord 12 and the second output power cord 13 passes through the inner shaft 15 and extends into the housing 14. The other ends of each output power cord 12 and the second output power cord 13 extend to the outside of the inner shaft 15. Line 12 and the second output power line 13 fill the inner shaft 15 and are fixed inside the inner shaft 15. A second mounting cover 17 is installed on the surface of the outer casing 14. A first mounting cover 16 is also installed on the surface of the outer casing 14. The first mounting cover 16 and the second mounting cover 17 are connected by screws. The first mounting cover 16 and the second mounting cover 17 are used to fix the first input power line 10 and the second input power line 11 to the surface of the outer casing 14. A protective sleeve 110 is provided inside the first input power line 10, the second input power line 11, the first output power line 12 and the second output power line 13. A shielding layer 19 is adhered to the inner wall of the protective sleeve 110. Multiple sets of wires 111 are arranged inside the shielding layer 19. A filler material 18 is filled between the wires 111 and the shielding layer 19.

[0024] Furthermore, such as Figure 2 and Figure 3As shown, the interior of the outer casing 14 is provided with an anti-winding mechanism 2, which consists of a first bearing outer ring 21, a second bearing outer ring 22, rotating balls 23, a second bearing inner ring 24, and a first bearing inner ring 25. The first bearing outer ring 21 is installed on the inner wall of the outer casing 14, and the first bearing inner ring 25 is located inside the first bearing outer ring 21. The second bearing outer ring 22 is installed on the inner wall of the outer casing 14, and the second bearing inner ring 24 is located inside the second bearing outer ring 22. Multiple sets of rotating balls 23 are arrayed on the inner walls of the first bearing outer ring 21 and the second bearing outer ring 22, respectively. The rotating balls 23 rotate and engage with the inner walls of the first bearing outer ring 21 and the second bearing outer ring 22, respectively. The surfaces of the rotating balls 23 contact the surfaces of the first bearing inner ring 25 and the second bearing inner ring 24, respectively. One end of the first input power line 10 is connected to the first bearing outer ring 21, and the other end of the first input power line 10 is connected to a plug. One end of the second input power line 11... One end of the first input power cord 11 passes through the outer casing 14 and is connected to the outer ring 22 of the second bearing. The other end of the second input power cord 11 is connected to the plug. One end of the first output power cord 12 passes through the inner shaft 15 and is connected to the inner ring 24 of the second bearing. The other end of the first output power cord 12 extends to the outside of the inner shaft 15 and is connected to the power tool. One end of the second output power cord 13 passes through the inner shaft 15 and the inner ring 24 of the second bearing in sequence and is connected to the inner ring 25 of the first bearing. The other end of the second output power cord 13 extends to the outside of the inner shaft 15 and is connected to the power tool. One end of the inner shaft 15 passes through the inner ring 24 of the second bearing and the inner ring 25 of the first bearing in sequence and extends into the interior of the outer casing 14. The outer ring 21 and the inner ring 25 of the first bearing, the outer ring 22 and the inner ring 24 of the second bearing, and the rotating ball 23 are all conductors. The outer ring 21 and the inner ring 25 of the first bearing, the outer ring 22 and the inner ring 24 of the second bearing, and the rotating ball 23 are made of aluminum alloy.

[0025] In implementation, the first input power line 10 is connected to the outer ring 21 of the first bearing, the second input power line 11 is connected to the outer ring 22 of the second bearing, the first output power line 12 is connected to the inner ring 24 of the second bearing, and the second output power line 13 is connected to the inner ring 25 of the first bearing. When the external equipment rotates, the relative rotation between the outer ring 22 and the inner ring 24, the outer ring 21 and the inner ring 25 of the first bearing allows current to pass through. Through the rotational action of the inner ring 24 and the outer ring 22, the inner ring 25 and the outer ring 21 of the first bearing, and the rotating ball 23, the first input power line 10, the second input power line 11, the first output power line 12 and the second output power line 13 can be prevented from tangling. The outer ring 21, the outer ring 22, the rotating ball 23, the inner ring 24 and the inner ring 25 of the first bearing are made of good conductive materials, ensuring stable connection, preventing loose connections, and flexible rotation. This is suitable for various power tools that require dynamic use, thus achieving the function of preventing power line tangling.

[0026] Furthermore, such as Figure 4 and Figure 5 As shown, the protective cover 110 has a fire-retardant mechanism 3 inside. The fire-retardant mechanism 3 is composed of a first flame-retardant layer 31, a second flame-retardant layer 32, a cavity 33 and a heat insulation layer 34. The first mounting cover 16 has a cavity 33 inside. The cavity 33 has a first flame-retardant layer 31 inside. The surface of the first flame-retardant layer 31 is adhered to the second flame-retardant layer 32. The surface of the second flame-retardant layer 32 away from the first flame-retardant layer 31 is in contact with the inner wall of the cavity 33. The surface of the first flame-retardant layer 31 away from the second flame-retardant layer 32 is adhered to the heat insulation layer 34. The surface of the heat insulation layer 34 away from the first flame-retardant layer 31 is in contact with the inner wall of the cavity 33.

[0027] During implementation, the combined action of the second flame-retardant layer 32 and the first flame-retardant layer 31 inside the cavity 33 can prevent the power cord from burning and breaking the conductor 111 when exposed to a fire source, thus improving the fire-retardant performance of the power cord. At the same time, the heat insulation layer 34 can prevent the conductor 111 from breaking when the power cord is subjected to excessive tension, ensuring the normal use of the power cord and improving its service life, thereby achieving the fire-retardant function of the power cord.

[0028] Furthermore, such as Figure 4 and Figure 6As shown, the surfaces of the first input power line 10, the second input power line 11, the first output power line 12, and the second output power line 13 are provided with wear-resistant mechanisms 4. The wear-resistant mechanism 4 includes a wear-resistant outer ring 41, a waterproof coating 42, a thermoplastic elastomer 43, and a polyurethane protective layer 44. The surface of the second output power line 13 is covered with a waterproof coating 42, and a thermoplastic elastomer 43 is adhered to the surface of the waterproof coating 42. The surface of the thermoplastic elastomer 43 away from the waterproof coating 42 is covered with a polyurethane protective layer 44, and the surface of the polyurethane protective layer 44 away from the thermoplastic elastomer 43 is adhered with a wear-resistant outer ring 41.

[0029] During implementation, the waterproof coating 42 prevents the power cord from getting wet and water from entering, thus ensuring the power cord's durability and usability. The thermoplastic elastomer 43, polyurethane protective layer 44, and wear-resistant outer ring 41 further enhance the power cord's wear resistance during use, preventing damage to the power cord's surface from external objects, making the power cord more durable and longer-lasting, thus achieving the power cord's moisture-proof and wear-resistant functions.

[0030] Working principle: In use, first place the power cord body 1 in the designated position. The first input power cord 10 is connected to the outer ring 21 of the first bearing, the second input power cord 11 is connected to the outer ring 22 of the second bearing, the first output power cord 12 is connected to the inner ring 24 of the second bearing, and the second output power cord 13 is connected to the inner ring 25 of the first bearing. When the external device rotates, the relative rotation between the outer ring 22 and the inner ring 24, and between the outer ring 21 and the inner ring 25 of the first bearing allows current to flow. The current flows through the inner ring 24 and the outer ring 22, and between the inner ring 25 and the outer ring 25 of the first bearing. The rotational action between 21 and the rotating ball 23 prevents the first input power cable 10, the second input power cable 11, the first output power cable 12, and the second output power cable 13 from tangling. The outer ring 21 of the first bearing, the outer ring 22 of the second bearing, the rotating ball 23, the inner ring 24 of the second bearing, and the inner ring 25 of the first bearing are made of good conductive materials, ensuring stable connection, preventing loose connections, and flexible rotation. This is suitable for various power tools that require dynamic use, thus achieving the function of preventing the power cable from tangling. This effectively overcomes the previous problems of power cables being non-rotating, inflexible, and prone to tangling.

[0031] Subsequently, under the combined action of the second flame-retardant layer 32 and the first flame-retardant layer 31 inside the cavity 33, the power cord can be prevented from burning and breaking the conductor 111 when exposed to a fire source, thus improving the fire-retardant performance of the power cord. At the same time, under the action of the heat insulation layer 34, the power cord can be prevented from breaking the conductor 111 when subjected to excessive tension, ensuring the normal use of the power cord and improving its service life, thereby achieving the fire-retardant function of the power cord. This prevents the power cord from burning and melting when exposed to an open flame, making the power cord safer to use.

[0032] Subsequently, the waterproof coating 42 prevents the power cord from getting wet, thus ensuring its durability and usability. The thermoplastic elastomer 43, polyurethane protective layer 44, and wear-resistant outer ring 41 further enhance the wear resistance of the power cord during use, preventing damage to the surface of the power cord from external objects, making the power cord more durable and longer-lasting. This achieves the function of moisture-proof and wear-resistant power cord, preventing wear during use and extending the service life of the power cord. At the same time, it improves the wear resistance of the power cord.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rotary power cord with an anti-tangle structure, comprising a power cord body (1), characterized in that: The power cord body (1) includes a first input power cord (10), a second input power cord (11), a first output power cord (12), and a second output power cord (13). A housing (14) is provided on one side of the power cord body (1). An inner shaft (15) is installed on the surface of the housing (14). The first output power cord (12) is installed inside the inner shaft (15). The second output power cord (13) is also installed inside the inner shaft (15). A protective sleeve (110) is provided inside the first input power cord (10), the second input power cord (11), the first output power cord (12), and the second output power cord (13). An anti-winding mechanism (2) is provided inside the housing (14). A fire-retardant mechanism (3) is provided inside the protective sleeve (110). A wear-resistant mechanism (4) is provided on the surface of the first input power cord (10), the second input power cord (11), the first output power cord (12), and the second output power cord (13).

2. The rotary power cord with an anti-tangle structure according to claim 1, characterized in that: A second mounting cover (17) is installed on the surface of the outer shell (14), and a first mounting cover (16) is also installed on the surface of the outer shell (14). The first mounting cover (16) and the second mounting cover (17) are connected by screws. The first mounting cover (16) and the second mounting cover (17) are used to fix the first input power line (10) and the second input power line (11) to the surface of the outer shell (14). A shielding layer (19) is adhered to the inner wall of the protective sleeve (110). Multiple sets of wires (111) are arranged inside the shielding layer (19). The space between the wires (111) and the shielding layer (19) is filled with a filler material (18).

3. The rotary power cord with an anti-tangle structure according to claim 1, characterized in that: The anti-winding mechanism (2) is composed of a first bearing outer ring (21), a second bearing outer ring (22), rotating balls (23), a second bearing inner ring (24), and a first bearing inner ring (25). The first bearing outer ring (21) is installed on the inner wall of the outer shell (14), and the first bearing inner ring (25) is provided on the inner side of the first bearing outer ring (21). The second bearing outer ring (22) is installed on the inner wall of the outer shell (14), and the second bearing inner ring (24) is provided on the inner side of the second bearing outer ring (22). Multiple sets of rotating balls (23) are arranged in an array on the inner walls of the first bearing outer ring (21) and the second bearing outer ring (22). The rotating balls (23) rotate and cooperate with the inner walls of the first bearing outer ring (21) and the second bearing outer ring (22). The surface of the rotating balls (23) contacts the surface of the first bearing inner ring (25) and the second bearing inner ring (24).

4. The rotary power cord with an anti-tangle structure according to claim 1, characterized in that: One end of the first input power line (10) is connected to the outer ring (21) of the first bearing, and the other end of the first input power line (10) is connected to the plug. One end of the second input power line (11) passes through the housing (14) and is connected to the outer ring (22) of the second bearing. The other end of the second input power line (11) is connected to the plug. One end of the first output power line (12) passes through the inner shaft (15) and is connected to the inner ring (24) of the second bearing. The other end of the first output power line (12) extends to the outside of the inner shaft (15) and is connected to the power tool. One end of the second output power line (13) passes through the inner shaft (15) and the inner ring (24) of the second bearing in sequence and is connected to the inner ring (25) of the first bearing. The other end of the second output power line (13) extends to the outside of the inner shaft (15) and is connected to the power tool. One end of the inner shaft (15) passes through the inner ring (24) of the second bearing and the inner ring (25) of the first bearing in sequence and extends into the interior of the housing (14).

5. The rotary power cord with an anti-tangle structure according to claim 2, characterized in that: The fireproof and flame-retardant mechanism (3) is composed of a first flame-retardant layer (31), a second flame-retardant layer (32), a cavity (33), and a heat insulation layer (34). The first mounting cover (16) has a cavity (33) inside. The cavity (33) is provided with a first flame-retardant layer (31). The surface of the first flame-retardant layer (31) is adhered to the second flame-retardant layer (32). The surface of the second flame-retardant layer (32) away from the first flame-retardant layer (31) is in contact with the inner wall of the cavity (33). The surface of the first flame-retardant layer (31) away from the second flame-retardant layer (32) is adhered to the heat insulation layer (34). The surface of the heat insulation layer (34) away from the first flame-retardant layer (31) is in contact with the inner wall of the cavity (33).

6. The rotary power cord with an anti-tangle structure according to claim 1, characterized in that: The wear-resistant mechanism (4) includes a wear-resistant outer ring (41), a waterproof coating (42), a thermoplastic elastomer (43), and a polyurethane protective layer (44). The surface of the second output power line (13) is covered with a waterproof coating (42). A thermoplastic elastomer (43) is adhered to the surface of the waterproof coating (42). The surface of the thermoplastic elastomer (43) away from the waterproof coating (42) is covered with a polyurethane protective layer (44). The surface of the polyurethane protective layer (44) away from the thermoplastic elastomer (43) is adhered with a wear-resistant outer ring (41).

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