Flame-retardant power line

Abstract

The utility model relates to the field of flame-retardant power lines, and discloses a flame-retardant power line which comprises a flame-retardant power line body, a plug is fixedly connected to the right side of the flame-retardant power line body, a supporting assembly is arranged between the left side of the plug and the flame-retardant power line body and comprises a supporting shell, and a positioning frame is fixedly connected to the right side of the supporting shell. A positioning groove is formed in the outer wall of the plug, the positioning frame is clamped to the inner wall of the positioning groove, an anti-skid pad is fixedly connected to the bottom end of the supporting shell, and a protection assembly is arranged on the right side of the plug. According to the utility model, the two groups of supporting shells are inserted into the positioning grooves and are matched with the plastic buckles to be clamped into the clamping grooves, so that the two groups of supporting shells can be quickly limited and installed, and therefore, the connection part of the plug and the flame-retardant power line can be effectively protected, and the connection part is prevented from being damaged and broken due to the action of external force; and the safety risk caused by wire metal fatigue and external insulating layer damage is reduced.

Description

Technical Field

[0001] The utility model relates to the field of flame-retardant power cords, and particularly relates to a flame-retardant power cord. Background Art

[0002] With the rapid development of modern society, electricity has become an important and indispensable energy source in people's life and work. However, the convenience brought by electricity is also accompanied by certain safety risks. Especially during the power transmission and use processes, the fire hazard problem of power cords becomes increasingly prominent. In order to ensure people's life and property safety and reduce the losses caused by fire accidents, flame-retardant power cords are thus used.

[0003] A flame-retardant power cord is a wire and cable product that can prevent or delay the spread of fire under specific conditions. It usually adopts a multi-layer structure design and improves the flame-retardant performance of the power cord by adding a flame-retardant layer, a fire-resistant layer, etc.

[0004] However, when the traditional flame-retardant power cord is in use, the power cord is often bent, and the connection part between the plug and the power cord is the stress concentration part. Repeated bending actions will cause the metal of the wire at this part to be fatigued. Metal fatigue will gradually weaken the mechanical properties and structural strength of the wire, and then cause the external insulation layer to be damaged under long-term stress. Once the external insulation layer is damaged, the internal wire will be directly exposed to the external environment, which not only greatly increases the risk of electric leakage, but also may cause serious safety accidents such as short circuit and fire, posing a great threat to people's life and property safety. Therefore, a flame-retardant power cord is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a flame-retardant power cord, aiming to improve the problem of "the connection part between the plug and the wire is easy to be bent and broken" in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a flame-retardant power cord, including a flame-retardant power cord, a plug is fixedly connected to the right side of the flame-retardant power cord, a support assembly is arranged between the left side of the plug and the flame-retardant power cord, the support assembly includes a support shell, a positioning frame is fixedly connected to the right side of the support shell, a positioning groove is formed in the outer wall of the plug, the positioning frame is clamped in the inner wall of the positioning groove, and an anti-slip pad is fixedly connected to the bottom end of the support shell.

[0007] As a further description of the above technical scheme:

[0008] A protective component is provided on the right side of the plug. The protective component includes a first protective shell and a second protective shell. A support ring is fixedly connected to the left side of the front surface of the first protective shell. There are two groups of fixing blocks fixedly connected to the front surface of the plug, and a rotating rod is fixedly connected between the two groups of fixing blocks. The support ring is rotatably connected to the outer wall of the rotating rod.

[0009] As a further description of the above technical solution:

[0010] The anti-slip pad is arranged in a semi-circular arc shape, and a plastic buckle is fixedly connected to the front surface of the support shell.

[0011] As a further description of the above technical solution:

[0012] There are two groups of the support shell, the anti-slip pad, and the positioning frame, and the two groups of the support shell, the anti-slip pad, and the positioning frame are symmetrically arranged with the center line of the flame-retardant power cord as the axis of symmetry. A card slot is opened on the front surface of the other support shell, and the plastic buckle is clamped on the inner wall of the card slot. The two groups of the support shell and the anti-slip pad slide on the outer wall of the flame-retardant power cord.

[0013] As a further description of the above technical solution:

[0014] The support ring and the fixing block are elastically connected by a torsion spring. One end of the torsion spring is fixedly connected to the bottom end of the support ring, and the other end of the torsion spring is fixedly connected to the top end of the fixing block. A positioning block is fixedly connected to the rear surface of the right end of the first protective shell.

[0015] As a further description of the above technical solution:

[0016] A limiting groove is opened at the top end of the positioning block. There are two groups of the support ring, the fixing block, and the torsion spring, and the two groups of the support ring, the fixing block, and the torsion spring are symmetrically arranged on the rear surface of the second protective shell. A sliding groove is opened on the front surface of the second protective shell, and the positioning block is inserted into the inner wall of the sliding groove.

[0017] As a further description of the above technical solution:

[0018] A limiting rod is slidably connected to the top end of the second protective shell, and the limiting rod slides in the inner wall of the limiting groove. A positioning disk is fixedly connected to the outer wall of the limiting rod.

[0019] As a further description of the above technical solution:

[0020] The positioning disk and the second protective shell are elastically connected by a spring. One end of the spring is fixedly connected to the top end of the positioning disk, and the other end of the spring is fixedly connected to the inner wall of the second protective shell. The bottom end of the front surface of the limiting rod is provided with an inclined surface.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, by providing a positioning groove for support and positioning, and inserting two groups of support shells into the positioning groove and fitting plastic buckles into the card slots, the two groups of support shells can be quickly and limitedly installed at the connection between the plug and the flame-retardant power cord, thereby effectively protecting the connection between the plug and the flame-retardant power cord, preventing the connection from being damaged and broken due to external forces, and reducing the safety risks caused by wire metal fatigue and external insulation layer damage.

[0023] 2. In the present utility model, by hingedly setting the first protective shell and the second protective shell, when the plug is not in use, closing the first protective shell and the second protective shell can effectively protect the metal conductive head of the plug inserted into the socket, reducing the chance of direct contact between dust, moisture and other possible pollutants in the external environment and the metal conductive head, avoiding its erosion and damage, prolonging the service life of the plug, and improving the safety and stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0025] Figure 2 is a left three-dimensional structural split view of the support shell and the flame-retardant power cord in the present utility model;

[0026] Figure 3 is a three-dimensional structural split view of the support shell and the flame-retardant power cord in the present utility model;

[0027] Figure 4 is a three-dimensional structural split view of the first protective shell and the plug in the present utility model;

[0028] Figure 5 is a three-dimensional structural split view of the first protective shell and the plug and a cross-sectional view of the three-dimensional structure of the second protective shell in the present utility model.

[0029] LEGEND DESCRIPTION:

[0030] 1. Flame-retardant power cord; 2. Plug; 3. Support shell; 4. First protective shell; 31. Plastic buckle; 32. Anti-slip pad; 33. Positioning groove; 34. Card slot; 35. Positioning frame; 41. Support ring; 42. Limiting rod; 43. Torsion spring; 44. Positioning block; 45. Chute; 46. Limiting groove; 47. Second protective shell; 48. Positioning disk; 49. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present invention: a flame-retardant power cord, including a flame-retardant power cord 1 that can provide flame retardancy and conductivity. A plug 2 that can connect the flame-retardant power cord 1 to a socket is fixedly connected to the right side of the flame-retardant power cord 1. A support assembly is provided between the left side of the plug 2 and the flame-retardant power cord 1. The support assembly includes a support shell 3 that provides support and protection. A positioning frame 35 that connects the support shell 3 to the plug 2 is fixedly connected to the right side of the support shell 3. A positioning groove 33 that provides for the movement and clamping connection of the positioning frame 35 to connect the support shell 3 to the plug 2 is opened on the outer wall of the plug 2. The positioning frame 35 is clamped on the inner wall of the positioning groove 33. An anti-slip pad 32 that can increase the friction with the flame-retardant power cord 1 and reduce pulling is fixedly connected to the bottom end of the support shell 3.

[0033] Referring to Figure 1 , Figure 4 and Figure 5 , a protection assembly is provided on the right side of the plug 2. The protection assembly includes a first protection shell 4 and a second protection shell 47 that can protect the metal connector on the right side of the plug 2. A support ring 41 that provides support and guidance is fixedly connected to the left side of the front surface of the first protection shell 4. Two groups of fixing blocks that provide support are fixedly connected to the front surface of the plug 2, and a rotating rod that supports the support ring 41 is fixedly connected between the two groups of fixing blocks. The support ring 41 is rotatably connected to the outer wall of the rotating rod.

[0034] Referring to Figure 1 , Figure 2 and Figure 3 , the anti-slip pad 32 is set to a semi-circular arc shape. By setting it to a semi-circular arc shape, the contact area with the flame-retardant power cord 1 can be increased, thereby increasing the friction force, increasing the resistance to being pulled, and improving the protection effect. A plastic buckle 31 that can cooperate with a card slot 34 to connect and limit two groups of support shells 3 is fixedly connected to the front surface of the support shell 3. There are two groups of support shells 3, anti-slip pads 32, and positioning frames 35, and the two groups of support shells 3, anti-slip pads 32, and positioning frames 35 are symmetrically arranged with the center line of the flame-retardant power cord 1 as the axis of symmetry. A card slot 34 that provides for the plastic buckle 31 to be inserted to limit the two groups of support shells 3 is opened on the front surface of the other group of support shells 3. The plastic buckle 31 is clamped on the inner wall of the card slot 34. The two groups of support shells 3 and the anti-slip pads 32 slide on the outer wall of the flame-retardant power cord 1.

[0035] Reference Figure 3 、 Figure 4 and Figure 5 , the support ring 41 and the fixed block are elastically connected by a torsion spring 43. One end of the torsion spring 43 is fixedly connected to the bottom end of the support ring 41, and the other end of the torsion spring 43 is fixedly connected to the top end of the fixed block. After the first protective shell 4 and the second protective shell 47 are rotated and closed, the first protective shell 4 contacts the second protective shell 47, thereby driving the support ring 41 to rotate and compress the torsion spring 43. Through the acting force of the compressed torsion spring 43, the first protective shell 4 and the second protective shell 47 can be quickly opened. A positioning block 44 for supporting and limiting the groove 46 is fixedly connected to the rear surface of the right end of the first protective shell 4. A limiting groove 46 is provided at the top end of the positioning block 44. When the limiting rod 42 slides into the limiting groove 46, the first protective shell 4 and the second protective shell 47 can be closed and contacted for limiting to provide protection. Two groups of support rings 41, fixed blocks, and torsion springs 43 are provided, and the two groups of support rings 41, fixed blocks, and torsion springs 43 are symmetrically arranged on the rear surface of the second protective shell 47. The first protective shell 4 and the second protective shell 47 are symmetrically arranged. A sliding groove 45 for the positioning block 44 to slide into is provided on the front surface of the second protective shell 47, and the positioning block 44 is inserted into the inner wall of the sliding groove 45.

[0036] Reference Figure 2 、 Figure 4 and Figure 5 , a limiting rod 42 that can slide into the limiting groove 46 to limit the positioning block 44 is slidably connected to the top end of the second protective shell 47. The limiting rod 42 slides on the inner wall of the limiting groove 46. A positioning disk 48 for supporting and pressing the spring 49 is fixedly connected to the outer wall of the limiting rod 42. The positioning disk 48 and the second protective shell 47 are elastically connected by a spring 49. One end of the spring 49 is fixedly connected to the top end of the positioning disk 48, and the other end of the spring 49 is fixedly connected to the inner wall of the second protective shell 47. The bottom end of the front surface of the limiting rod 42 is provided with an inclined surface. After the first protective shell 4 and the second protective shell 47 are rotated, the positioning block 44 slides into the sliding groove 45 and then presses the inclined surface of the limiting rod 42, causing the limiting rod 42 to move upward and drive the positioning disk 48 to move and compress the spring 49. When the first protective shell 4 and the second protective shell 47 rotate and contact and then close, at this time, the reverse acting force of the compressed spring 49 can cause the limiting rod 42 to reset and slide into the limiting groove 46, and the first protective shell 4 and the second protective shell 47 can be quickly limited, thereby improving the protection efficiency.

[0037] Working principle: When in use, when using this flame-retardant power cord 1, the plug 2 is used to connect to the socket to achieve power transmission. At the connection between the plug 2 and the flame-retardant power cord 1, two groups of support shells 3 are clamped in the positioning grooves 33 on the outer wall of the plug 2 through the positioning frame 35 to achieve a firm connection with the plug 2. The semi-circular anti-slip pads 32 contact the flame-retardant power cord 1, increasing the contact area with the flame-retardant power cord 1, thereby increasing the friction force and reducing the impact on the connection during pulling, improving the protection effect. The plastic buckle 31 is snapped into the card slot 34 to connect and limit the two groups of support shells 3, making them tightly wrap around the connection, providing support and protection for it.

[0038] On the right side of the plug 2, the first protective shell 4 and the second protective shell 47 are connected to the plug 2 in a hinged manner. When the plug 2 needs to be used, the limiting rod 42 is pulled upward to disengage it from the limiting groove 46, releasing the limit between the first protective shell 4 and the second protective shell 47. At this time, under the action of the compressed torsion spring 43, the first protective shell 4 and the second protective shell 47 can be quickly opened.

[0039] After use, rotate the first protective shell 4 and the second protective shell 47. The rotation of the first protective shell 4 and the second protective shell 47 drives the support ring 41 to rotate and compress the torsion spring 43. When the first protective shell 4 and the second protective shell 47 are in contact and closed, at this time, the positioning block 44 on the first protective shell 4 slides into the chute 45 of the second protective shell 47 and presses the inclined surface of the limiting rod 42, causing the limiting rod 42 to move upward, driving the positioning disk 48 to move and compress the spring 49. When the first protective shell 4 and the second protective shell 47 are in complete contact and closed after rotation, the reverse acting force of the compressed spring 49 causes the limiting rod 42 to reset and slide into the limiting groove 46, quickly limiting the first protective shell 4 and the second protective shell 47, thereby effectively protecting the metal joint of the plug 2 and improving the protection efficiency.

[0040] Through the coordinated action of the support component and the protection component, the connection between the plug 2 and the power cord and the metal joint of the plug 2 are effectively protected, improving the safety and durability of the power cord during use.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flame retardant power cord, comprising a flame retardant power cord (1), characterized in that: The right side of the flame retardant power cord (1) is fixedly connected to a plug (2), and the left side of the plug (2) is provided with a support assembly near the flame retardant power cord (1), the support assembly comprising a support shell (3), the right side of the support shell (3) is fixedly connected to a positioning frame (35), the outer wall of the plug (2) is provided with a positioning groove (33), the positioning frame (35) is clamped on the inner wall of the positioning groove (33), and the bottom end of the support shell (3) is fixedly connected to an anti-slip pad (32).

2. The flame retardant power cord according to claim 1, characterized in that: A protective component is provided on the right side of the plug (2), the protective component comprising a protective shell 1 (4) and a protective shell 2 (47), a support ring (41) is fixedly connected to the left side of the front surface of the protective shell 1 (4), a fixed block is fixedly connected to the front surface of the plug (2) and two groups of fixed blocks are provided, a rotating rod is fixedly connected between the two groups of fixed blocks, and the support ring (41) is rotatably connected to the outer wall of the rotating rod.

3. The flame retardant power cord according to claim 1, characterized in that: The anti-slip pad (32) is configured in a semicircular arc shape, and a plastic buckle (31) is fixedly connected to the front surface of the support shell (3).

4. The flame retardant power cord according to claim 3, characterized in that: The support shell (3), the anti-skid pad (32), and the positioning frame (35) are provided in two groups, and the two groups of the support shell (3), the anti-skid pad (32), and the positioning frame (35) are symmetrically arranged with the center line of the flame-retardant power cord (1) as the symmetry axis, and the front surface of the other group of the support shell (3) is provided with a card slot (34), and the plastic buckle (31) is card-connected to the inner wall of the card slot (34), and the two groups of the support shell (3) and the anti-skid pad (32) slide on the outer wall of the flame-retardant power cord (1).

5. The flame retardant power cord according to claim 2, characterized in that: The support ring (41) is elastically connected to the fixed block via a torsion spring (43), one end of the torsion spring (43) is fixedly connected to the bottom end of the support ring (41), and the other end of the torsion spring (43) is fixedly connected to the top end of the fixed block. A positioning block (44) is fixedly connected to the rear surface of the right end of the protective shell (4).

6. The flame retardant power cord according to claim 5, characterized in that: A limiting groove (46) is provided at the top of the positioning block (44), and two groups of the support ring (41), the fixing block and the torsion spring (43) are provided, and the two groups of the support ring (41), the fixing block and the torsion spring (43) are symmetrically arranged on the rear surface of the second protective shell (47), and a sliding groove (45) is provided on the front surface of the second protective shell (47), and the positioning block (44) is inserted into the inner wall of the sliding groove (45).

7. The flame retardant power cord according to claim 6, characterized in that: The top end of the second protective shell (47) is slidably connected to a limiting rod (42), the limiting rod (42) slides on the inner wall of the limiting groove (46), and the outer wall of the limiting rod (42) is fixedly connected to a positioning plate (48).

8. The flame retardant power cord according to claim 7, characterized in that: The positioning plate (48) is elastically connected to the second protective shell (47) via a spring (49), one end of the spring (49) is fixedly connected to the top of the positioning plate (48), and the other end of the spring (49) is fixedly connected to the inner wall of the second protective shell (47), and the bottom end of the front surface of the limiting rod (42) is set as an inclined surface.

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