Low-smoke halogen-free round plug power cord

Abstract

The utility model discloses a low smoke halogen -free round plug power cord, specifically related to plug power cord technical field, including round plug main part and line body, the line body outer wall is equipped with the anti -bending part, the anti -bending part includes the fixed plate and rubber sleeve fixed together, the round plug main part rear end is provided with the mounting hole, the fixed plate penetrates mounting hole and extends to the round plug main part rear end, the fixed plate front end is equipped with a plurality of long blocks that are annular array distribution, every long block is close to line body one side and is provided with the sliding slot, the inside of sliding slot is equipped with the sliding block. The utility model discloses through fixed plate and rubber sleeve and a plurality of sliding blocks cooperatively clamping line body, can strengthen the connection stability of line body, and the round plug main part is combined by two semicircular shell, is convenient for dismounting and overhauling, in addition, when line body and pin connecting part are damaged, can separate semicircular shell, loosen sliding block, and after cutting off the damaged part, re -pulls the connection, and the operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of plug power cord technology, and more specifically to a low-smoke halogen-free round plug power cord. Background Technology

[0002] A round plug power cord, also known as a plug cord, is an electrical wire used to transmit current. It typically consists of a plug, wires, and sockets, delivering electrical energy from a power source to electrical devices. For example, AC power cords are used to connect alternating current (AC) devices, such as MISUMI's Chinese standard 3-core right-angle round plug power cord with an O-type round plug, rated at 2.5A-10A and 250V. DC power cords are used for direct current (DC) devices. Common round DC connector plugs are available in sizes such as 5.5mm×2.5mm and 5.5mm×2.1mm, following the "positive inside, negative outside" principle. They are characterized by their compact structure and high power output, making them suitable for laptops, tablets, etc.

[0003] For example, in the prior art disclosure CN221328188U, a plug power cord, when the plug is inserted into the socket, the power cord swings. Under the action of the protective component, the swinging position of the power cord is between the top of the protective component and the position of the reversing block. The connecting component clamps the power cord with a rubber sleeve. When the plug needs to be unplugged, the locking block on the connecting component is inserted into the slot on the first protective tube of the protective component for connection. The second protective tube is rotated, the long nut is pulled, and the plug is unplugged. The power cord between the protective component and the connecting component protrudes outward under the action of the reversing block, thus protecting the power cord. The entire design mainly achieves the protection of the power cord, thereby improving the service life of the connecting cord.

[0004] However, the existing technology described above still has the following problems in use: the connection between the wire end and the internal pins of the traditional round plug power cord is prone to damage after long-term use. Because the wire body and the bending part are designed as a single piece, it cannot be repaired by cutting and reconnecting; the entire wire must be replaced, which undoubtedly increases the cost of use. Based on this, the present invention provides a low-smoke halogen-free round plug power cord that is easy to disassemble and maintain. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a low-smoke halogen-free circular plug power cord. By using a fixing plate, a rubber sleeve, and multiple sliders to clamp the cord together, the connection stability of the cord can be enhanced. The circular plug body is composed of two semi-circular shells, which facilitates disassembly and maintenance. The rubber sleeve is soft and can adapt to the bending of the cord, extending its service life. In addition, when the connection between the cord and the pin is damaged, the semi-circular shells can be separated, the sliders can be released, the damaged part can be cut off, and the cord can be reconnected. The operation is simple, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-smoke halogen-free circular plug power cord, comprising a circular plug body and a cord body, wherein an anti-bending portion is sleeved on the outer wall of the cord body, the anti-bending portion comprising a fixing plate and a rubber sleeve fixed together, an installation hole is provided at the rear end of the circular plug body, the fixing plate passes through the installation hole and extends to the rear end of the circular plug body, and a plurality of elongated blocks arranged in a circular array are fixed at the front end of the fixing plate, each elongated block having a groove on the side near the cord body, a slider being provided inside the groove, the side of the slider away from the cord body being connected to the elongated block by a first bolt, and tightening the first bolt pushing the slider to compress the cord body for fixation.

[0007] In a preferred embodiment, the outer wall of the wire is fitted with a protective sleeve made of thermoplastic polyurethane (TPU). TPU can quickly self-extinguish when exposed to open flames and does not release a large amount of toxic fumes (such as hydrogen chloride gas when PVC burns) during combustion, which can reduce secondary damage in a fire. Furthermore, TPU has high surface hardness, is scratch-resistant and friction-resistant, which can prevent the exposure of the internal conductors of the wire from causing short circuit risks.

[0008] In a preferred embodiment, the front end of the fixing plate has a plurality of fixing holes arranged in a ring array, and each fixing hole is provided with a second bolt. The fixing plate is detachably connected to the circular plug body by the plurality of second bolts. The use of second bolts to install the fixing plate facilitates subsequent disassembly and maintenance.

[0009] In a preferred embodiment, the inner wall of the rubber sleeve is provided with an annular groove, and a first rubber sealing ring is provided inside the annular groove. The first rubber sealing ring is sleeved on the outside of the protective sleeve. The design of the first rubber sealing ring can effectively improve the sealing performance between the rubber sleeve and the protective sleeve.

[0010] In a preferred embodiment, a second rubber sealing ring is provided between the fixing plate and the mounting hole. The second rubber sealing ring is located on the outside of the plurality of second bolts. The design of the second rubber sealing ring can improve the sealing performance between the fixing plate and the mounting hole.

[0011] In a preferred embodiment, the circular plug body includes two semi-circular shells symmetrically distributed vertically, and the two semi-circular shells are detachably fixed together by a plurality of evenly distributed third bolts.

[0012] The technical effects and advantages of this utility model are as follows: This invention reliably connects the wire body to the circular plug body through a fixing plate and a rubber sleeve. Multiple sliders on the fixing plate work together to clamp the wire body, which enhances the connection stability of the wire body. Meanwhile, the circular plug body is composed of two semi-circular shells, which facilitates disassembly and maintenance. The rubber sleeve is soft and can adapt to the bending of the wire body, extending its service life. In addition, when the connection between the wire body and the pin is damaged, the semi-circular shells can be separated, the sliders can be loosened, the damaged part can be cut off, and then the wire can be reconnected. The operation is simple. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the separation of the semi-circular shell of this utility model; Figure 3 for Figure 2 Rear view; Figure 4 This is a cross-sectional view of the fixing plate and rubber sleeve of this utility model; Figure 5 This is a cross-sectional view of the protective sleeve of this utility model.

[0014] The attached figures are labeled as follows: 1. Circular plug body; 101. Semi-circular shell; 102. Third bolt; 2. Cable; 3. Bending-resistant part; 301. Fixing plate; 302. Rubber sleeve; 4. Mounting hole; 5. Long block; 6. Slide groove; 7. Sliding block; 8. First bolt; 9. Protective sleeve; 10. Fixing hole; 11. Second bolt; 12. Annular groove; 13. First rubber sealing ring; 14. Second rubber sealing ring. Detailed Implementation

[0015] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Refer to the instruction manual appendix Figures 1-5This utility model provides a low-smoke halogen-free circular plug power cord, including a circular plug body 1 and a cord body 2. The circular plug body 1 includes two symmetrically distributed semi-circular shells 101. The two semi-circular shells 101 are detachably fixed together by multiple evenly distributed third bolts 102. The combined design of the two semi-circular shells 101 facilitates disassembly and maintenance. The outer wall of the cord body 2 is fitted with an anti-bending part 3. The anti-bending part 3 includes a fixing plate 301 and a rubber sleeve 302 fixed together. The rear end of the circular plug body 1 has an installation hole 4. The fixing plate 301 passes through the installation hole 4 and extends to the rear end of the circular plug body 1. The front end of the fixing plate 301 is fixed with multiple long blocks 5 arranged in a ring array. Each long block 5 has a groove 6 on the side near the cord body 2. The groove 6 has a slider 7 inside. The side of the slider 7 away from the cord body 2 is connected to the long block 5 by a first bolt 8. Tightening the first bolt 8 pushes the slider 7 to squeeze the cord body 2 for fixation.

[0017] The outer wall of the line body 2 is fitted with a protective sleeve 9, which is made of TPU thermoplastic polyurethane. TPU thermoplastic polyurethane can quickly self-extinguish when exposed to open flame, and does not release a large amount of halogen-free fumes (such as hydrogen chloride gas when PVC burns) when burning, which can reduce secondary damage in a fire. In addition, TPU thermoplastic polyurethane has high surface hardness, scratch resistance, and friction resistance, which can prevent the exposure of the internal conductors of the line body 2 and the risk of short circuit.

[0018] The front end of the fixing plate 301 has a plurality of fixing holes 10 arranged in a ring array. Each fixing hole 10 is provided with a second bolt 11. The fixing plate 301 is detachably connected to the circular plug body 1 by the plurality of second bolts 11.

[0019] Since the main body 1 of the circular plug is composed of two semi-circular shells 101, during assembly, the fixing plate 301 is first inserted into the mounting hole 4 of one of the semi-circular shells 101, and the fixing plate 301 is fixed to the semi-circular shell 101 with the second bolt 11. Then, the front end of the wire 2 is passed through the rubber sleeve 302 and the fixing plate 301 in sequence and connected to the pin assembly inside the semi-circular shell 101 to realize the electrical connection between the wire 2 and the main body 1 of the circular plug. Subsequently, the operator uses an L-shaped screwdriver to tighten the first bolt 8 and pushes the slider 7 to squeeze the wire 2. The wire 2 is clamped by multiple sliders 7, thereby improving the stability of the wire 2. Finally, the two semi-circular shells 101 are assembled together. The rubber sleeve 302 is soft and can adapt to the bending at the connection between the wire 2 and the main body 1 of the circular plug, which helps to extend the service life of the wire 2. In addition, when the connection between the wire 2 and the pin assembly is damaged, the two semi-circular shells 101 can be separated first, and then the multiple sliders 7 can be released to cut off the damaged wire 2. Then the wire 2 can be pulled to reconnect.

[0020] Refer to the instruction manual appendix Figure 4 The inner wall of the rubber sleeve 302 is provided with an annular groove 12, and a first rubber sealing ring 13 is provided inside the annular groove 12. The first rubber sealing ring 13 is sleeved on the outside of the protective sleeve 9. The design of the first rubber sealing ring 13 can effectively improve the sealing performance between the rubber sleeve 302 and the protective sleeve 9.

[0021] like Figure 3 and Figure 4 As shown, a second rubber sealing ring 14 is provided between the fixing plate 301 and the mounting hole 4. The second rubber sealing ring 14 is located on the outside of the plurality of second bolts 11. The design of the second rubber sealing ring 14 can improve the sealing performance between the fixing plate 301 and the mounting hole 4.

[0022] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-smoke halogen-free circular plug power cord, comprising a circular plug body (1) and a cord body (2), characterized in that: The outer wall of the line body (2) is fitted with an anti-bending part (3), the anti-bending part (3) includes a fixing plate (301) and a rubber sleeve (302) fixed together, and the rear end of the circular plug body (1) is provided with an installation hole (4), the fixing plate (301) passes through the installation hole (4) and extends to the rear end of the circular plug body (1); The front end of the fixing plate (301) is fixed with a plurality of long blocks (5) arranged in a ring array. Each long block (5) has a groove (6) on the side near the line body (2). The groove (6) is provided with a slider (7). The side of the slider (7) away from the line body (2) is connected to the long block (5) by a first bolt (8). Tightening the first bolt (8) pushes the slider (7) to squeeze the line body (2) for fixing.

2. The low-smoke halogen-free round plug power cord according to claim 1, characterized in that: The outer wall of the line body (2) is fitted with a protective sleeve (9), which is made of TPU thermoplastic polyurethane.

3. The low-smoke halogen-free round plug power cord according to claim 1, characterized in that: The front end of the fixing plate (301) is provided with a plurality of fixing holes (10) arranged in a ring array. Each fixing hole (10) is provided with a second bolt (11). The fixing plate (301) is detachably connected to the circular plug body (1) by the plurality of second bolts (11).

4. The low-smoke halogen-free round plug power cord according to claim 1, characterized in that: The inner wall of the rubber sleeve (302) is provided with an annular groove (12), and a first rubber sealing ring (13) is provided inside the annular groove (12). The first rubber sealing ring (13) is sleeved on the outside of the protective sleeve (9).

5. A low-smoke halogen-free round plug power cord according to claim 1, characterized in that: A second rubber sealing ring (14) is provided between the fixing plate (301) and the mounting hole (4), and the second rubber sealing ring (14) is located on the outside of the plurality of second bolts (11).

6. The low-smoke halogen-free round plug power cord according to claim 1, characterized in that: The circular plug body (1) includes two semi-circular shells (101) symmetrically distributed vertically. The two semi-circular shells (101) are detachably fixed together by a plurality of evenly distributed third bolts (102).

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