CN214379032U

CN214379032U - Flame-retardant power line

Info

Publication number: CN214379032U
Application number: CN202120591652.2U
Authority: CN
Inventors: 黄献平; 曾桃芬; 张永胜
Original assignee: Wenzhou Jiutian Electronic And Electrical Co ltd
Current assignee: Wenzhou Jiutian Electronic And Electrical Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-10-08
Anticipated expiration: 2031-03-23

Abstract

The application relates to a flame-retardant power line which comprises a plug body, an electrode arranged on one side of the plug body and used for connecting a power supply, and a wire arranged on the other side of the plug body and used for transmitting current, wherein the plug body is rotatably connected with a protective cover through a connecting piece; when the stopper is connected with the plug body, the shield is located outside the electrode. The electrode has the advantages that the surface of the electrode is not easy to be stained with water when the electrode is not used, and the potential safety hazard is small.

Description

Flame-retardant power line

Technical Field

The application relates to the field of power lines, in particular to a flame-retardant power line.

Background

The power line is an electrical appliance accessory for transmitting current, and is widely applied to the fields of industrial automation control, military equipment, scientific research equipment, LED illumination, power equipment, computer cases, digital instruments and the like. The electrical equipment is connected with the power supply through the power line, and the power line can transmit current to the electrical equipment from the power supply, so that the electrical equipment is electrified and used.

In the related art, chinese patent No. CN205376974U discloses a two-core power line, which includes a dual-hole plug terminal, a wire, a plug, and an electrode, wherein two ends of the wire are respectively connected to the dual-hole plug terminal and the plug, the electrode is mounted on an end surface of the plug, and the dual-hole plug terminal is provided with a jack for connecting the electrode. The power line has the advantages of convenient plugging and unplugging, good electrode contact and durability.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the two-core power line is not used, the electrode is directly exposed in the air, moisture is easily attached to the surface of the electrode, and if the moisture on the surface of the electrode is not wiped off in time, accidents such as electric shock and the like are easily caused when the electrode is subsequently connected with a power supply, and the potential safety hazard is large and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fire-retardant power cord, the difficult surface is stained with water when making the electrode not insert the power, potential safety hazard when reducing the follow-up connection power of electrode, this application.

The application provides a fire-retardant power cord adopts following technical scheme:

a flame-retardant power cord comprises a plug body, an electrode arranged on one side of the plug body and used for being connected with a power supply, and a lead arranged on the other side of the plug body and used for transmitting current, wherein the plug body is rotatably connected with a protective cover through a connecting piece; when the stopper is connected with the plug body, the shield is located outside the electrode.

Through adopting above-mentioned technical scheme, when not using the power cord, rotate the protection casing so that the electrode inserts rather than adjacent protective slot in, link to each other stopper and plug body again to make the protection casing difficult with the separation of plug body. The protection casing cover is established in the outside of electrode this moment, can effectively protect the electrode surface not wet by moisture, is difficult for causing incident such as electric shock when follow-up access power, and the potential safety hazard is little, barrier propterty is high.

Optionally, the stopper includes fixing at the protection casing and being close to electrode one side and having elastic stop block, be fixed with the extension piece on the lateral wall that the connecting piece was kept away from to the plug body, set up the locking groove that supplies stop block deformation card to go into on the extension piece.

Through adopting above-mentioned technical scheme, when the protection casing is connected in the electrode outside, the stop block deformation is established in the locking groove with the card for the protection casing is difficult to rotate to the one side of keeping away from the plug body, has improved the stability of protection casing and the protective effect to the electrode.

Optionally, the opening of the protective groove is gradually reduced from one end close to the electrode to one end far away from the electrode.

Through adopting above-mentioned technical scheme, the opening of guard slot is the gradual change formula, plays the effect of direction at the in-process that the electrode inserted the guard slot, helps electrode and guard slot to align to improve the positioning efficiency of protection casing.

Optionally, the minimum width of the guard trench is not greater than the width of the electrode.

Through adopting above-mentioned technical scheme, can support the cell wall of tight protecting groove gradually after the electrode inserts the protecting groove for the protection casing is difficult to separate with the electrode, has further improved the joint strength of electrode and protection casing and the stability of protection casing.

Optionally, the connecting piece includes flexible connection cloth, the one end of connecting cloth is fixed on the safety cover, the other end can be dismantled and connect and keep away from the one side of extending the piece at the plug body.

Through adopting above-mentioned technical scheme, the protection casing links to each other through being connected cloth with the plug body, and when using the power cord, the protection casing can also keep being connected with the plug body with the electrode separation back, and the protection casing is difficult for losing, makes things convenient for next use. The connecting cloth is flexible, so that the connecting cloth can deform along with the position of the protective cover when the protective cover moves, and the disassembly and the assembly of the protective cover cannot be influenced.

Optionally, a positioning block is fixed on the side wall of the plug body away from the extension block, a positioning hole through which the connection cloth penetrates is formed in the positioning block, and a fixing piece used for limiting the connection cloth to be separated from the positioning hole is arranged on the connection cloth.

By adopting the technical scheme, when the protective cover is connected with the plug body, the end, away from the protective cover, of the connecting piece penetrates out of the positioning hole, and the fixing piece is used for limiting the connecting cloth to be separated from the positioning hole, so that the protective cover and the plug body are connected and fixed, and the operation is simple and convenient.

Optionally, the mounting includes that the interval sets up at the connection cloth homonymy and the magic of mutually supporting pastes colludes piece and magic tape hair piece, the magic is pasted and is colluded the piece and set up in the tip of connecting the cloth, magic tape hair piece is located between magic tape hook piece and the protection casing.

Through adopting above-mentioned technical scheme, the back is worn out from the locating hole to the connection cloth, will connect the one end that cloth worn out the locating hole and toward the wraparound for magic tape burr and magic tape collude the piece and bond each other, thereby make the tip of connection cloth enclose synthetic cover and establish the cyclic annular outside one of them lateral wall of locating hole, with the realization connection cloth and the plug body be connected, easy and simple to handle, power cord processing is convenient. In addition, after the protection casing is dirty or damaged, operating personnel still can paste through separating the magic and collude piece and magic tape hair piece to with protection casing and plug body separation, thereby the protection casing of renewal.

Optionally, the wire includes sinle silk, shielding layer, insulating layer and the FEP sheath that from interior to exterior set gradually, still be equipped with aramid fiber flame retardant coating between insulating layer and the FEP sheath.

Through adopting above-mentioned technical scheme, aramid fiber is a novel high-tech synthetic fiber, has super high strength, high modulus and high temperature resistant, acid and alkali-resistance, light in weight, insulating, ageing resistance, life cycle excellence performance such as length, and fire-retardant layer adopts above-mentioned material to make, and it can also improve the insulating nature and the corrosion resistance of cable when playing flame retardant efficiency, has prolonged the life of cable. The FEP sheath has excellent chemical resistance stability and electrical insulation, and the chemical resistance stability and the insulation of the cable are improved; the aramid fiber flame-retardant protective film is wrapped on the outer side of the aramid fiber flame-retardant layer, and also has the function of protecting each layer on the inner side of the aramid fiber flame-retardant layer from being damaged, so that the protective effect is good.

Optionally, an intumescent fire retardant coating layer is arranged on the outer side of the FEP sheath.

By adopting the technical scheme, when an object outside the wire catches fire, the expansion type fireproof coating can expand and foam when being heated, so that the carbon foam heat insulation layer is formed to close the FEP sheath, the transfer of heat and the FEP sheath is delayed, the fire is prevented from spreading towards the inner side of the wire, and the fireproof performance of the wire is further improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the power line is not used, the protective cover is sleeved on the outer side of the electrode, so that the electrode is inserted into the protective groove close to the electrode, the stop block is clamped into the stop groove, and at the moment, the protective cover can prevent moisture from attaching to the surface of the electrode, so that the electrode is not easy to cause electric shock accidents due to water contamination when being connected with a power supply subsequently, and the potential safety hazard is small;

2. the connecting cloth plays a role in connecting the plug body and the protective cover, so that the protective cover is not easy to lose after being separated from the electrode; the connecting cloth and the positioning block are detachably connected through the magic tape hook piece and the magic tape hair piece, and the connecting cloth and the plug body are convenient to disassemble and assemble;

3. the aramid fiber flame-retardant layer improves the flame-retardant performance of the lead, and the FEP sheath wraps the outer side of the aramid fiber flame-retardant layer to play a role in protecting each layer at the inner side; the expansion type fireproof coating layer can form a compact foam layer when being heated, can effectively prevent the fire outside the wire from spreading to the inner side of the wire, and improves the fireproof effect of the cable.

Drawings

Fig. 1 is a schematic structural view of the shield cap connected to the plug body in the embodiment of the present application.

Fig. 2 is a schematic structural view of the shield cap separated from the plug body in the embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of a wire in an embodiment of the present application.

Description of reference numerals: 1. a plug body; 11. positioning blocks; 111. positioning holes; 12. an extension block; 121. a stopper groove; 2. an electrode; 3. a wire; 31. a wire core; 32. a shielding layer; 33. an insulating layer; 34. an aramid fiber flame-retardant layer; 35. an FEP sheath; 36. an intumescent fire retardant coating layer; 4. connecting cloth; 5. a protective cover; 51. a protective bath; 52. a stopper block; 6. a fixing member; 61. hook-and-loop fastener; 62. magic tape hair piece.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a flame-retardant power line. Referring to fig. 1 and 2, the flame-retardant power line includes a plug body 1, two electrodes 2 fixed on one side of the plug body 1, and a lead 3 fixed on one side of the plug body 1 away from the electrodes 2, wherein the electrodes 2 are made of a metal conductive material, such as silver-plated copper sheets, and are used for connecting a power supply to input current into the plug body 1. The plug body 1 includes a conductive core disposed therein, and the conductive core is electrically connected to the electrode 2 and the wire 3, and is used to transmit the current input from the electrode 2 to the wire 3, so that the current enters the electrical equipment connected to the wire 3, thereby realizing power supply of the electrical equipment.

Referring to fig. 3, the wire 3 includes a wire core 31, a shielding layer 32, an insulating layer 33, an aramid fiber flame retardant layer 34 and an FEP sheath 35, which are sequentially disposed from inside to outside, and an intumescent fire retardant coating 36 is disposed on the outer side of the FEP sheath 35, specifically, the intumescent fire retardant coating 36 is formed by coating a non-toxic intumescent fire retardant coating, and expands and foams when being heated, so as to form a carbonaceous foam thermal insulation layer to seal the FEP sheath 35, thereby preventing a fire from spreading to the FEP sheath 35, and improving the fire resistance of the wire 3.

Referring to fig. 3, the wire core 31 is made of silver-plated copper wire, and has the characteristic of excellent conductivity. The shielding layer 32 is made of an aluminum foil material, so that interference of external electromagnetism on signal transmission can be effectively shielded, and the signal transmission is stable. The insulating layer 33 is made of a PVC material, and not only can be used for isolating the wire core 31 to prevent people from being injured by electric shock, but also can enhance the heat-resistant and flame-retardant performance of the lead 3. The aramid fiber flame-retardant layer 34 is located between the insulating layer 33 and the FEP sheath 35, has the performances of high strength, high temperature resistance, good insulation, long life cycle and the like, further improves the heat resistance, flame retardance and electrical insulation of the lead 3, and prolongs the service life of the lead 3.

Referring to fig. 1 and 2, the plug body 1 is rotatably connected with a protective cover 5 through a connecting piece, the connecting piece comprises a connecting cloth 4 made of Kevlar fiber materials, one end of the connecting cloth 4 is fixed on the protective cover 5, and the other end of the connecting cloth is detachably connected on the plug body 1. The side wall of the plug body 1 is fixed with a positioning block 11, the middle part of the positioning block 11 is provided with a through positioning hole 111, and the positioning hole 111 extends along the direction from the plug body 1 to the electrode 2 and can be penetrated by the connecting cloth 4.

Referring to fig. 1 and 2, be provided with mounting 6 on connecting cloth 4, mounting 6 is including bonding complex magic subsides hook strip 61 and magic tape burr 62, and magic subsides hook strip 61 and magic tape burr 62 are fixed in the homonymy of connecting cloth 4, and magic subsides hook strip 61 sets up at the tip of connecting cloth 4, magic tape burr 62 is located between magic subsides hook strip 61 and the protection casing 5, and magic subsides hook strip 61 is less than the width of locating hole 111 with the thickness sum of connecting cloth 4. When the connecting cloth 4 is installed, the end, far away from the protective cover 5, of the connecting cloth 4 penetrates out of the positioning hole 111, and then the end, far away from the protective cover 5, of the connecting cloth 4 is wound back, so that the hook-and-loop fastener 61 and the hook-and-loop fastener 62 are bonded with each other, the connecting cloth 4 is limited to be separated from the positioning block 11 and the plug body 1, and the protective cover 5 is not easy to lose.

Referring to fig. 1 and 2, the protective cover 5 is made of plastic capable of generating elastic deformation, such as PVC, PE, and the like. Two protective grooves 51 are formed in the end face, close to the electrode 2, of the protective cover 5, the distance between the two protective grooves 51 is equal to the distance between the two electrodes 2, the opening of each protective groove 51 is gradually reduced from one end, close to the electrode 2, to the end, far away from the electrode 2, and the minimum width of each protective groove 51 is slightly smaller than the width of the electrode 2. When the power line is not used, an operator can rotate the protective cover 5 to enable the two electrodes 2 to be respectively inserted into the adjacent protective grooves 51, so that moisture is prevented from adhering to the surfaces of the electrodes 2, the electrodes 2 are not easy to cause electric shock accidents when the power line is subsequently connected, and the potential safety hazard is small. When the electrode 2 extends into the protective groove 51, the side wall of the protective groove 51 is slightly deformed by the extrusion of the electrode 2, so that the electrode 2 is tightly extruded, and the stability of the protective cover 5 sleeved outside the electrode 2 is improved.

Referring to fig. 1 and 2, the end surface of the protective cover 5 close to the electrode 2 is further provided with a stopper, the stopper is fixed at one end of the protective cover 5 far away from the connecting cloth 4, the stopper comprises a stopper 52 made of elastic material, and specifically, the stopper 52 can be made of rubber, PVC, PE and other materials. An extension block 12 is fixed on the side wall of the plug body 1 far away from the positioning block 11, and a stop groove 121 which is in clamping fit with the stop block 52 is formed on the side surface of the extension block 12. When the electrode 2 extends into the protective groove 51, the stop block 52 is deformed and clamped in the stop groove 121, so that the protective cover 5 is not easy to rotate to the side far away from the electrode 2, and the stability of the protective cover 5 is further improved.

The implementation principle of the flame-retardant power line in the embodiment of the application is as follows: when the power supply line is not used, the shield 5 is rotated to insert the electrodes 2 into the shield grooves 51 adjacent thereto, respectively, so that the sidewalls of the shield grooves 51 are deformed and grip the electrodes 2, and the stopper 52 is deformed and caught in the stopper groove 121. At this time, the protective cover 5 is sleeved on the outer side of the electrode 2, so that moisture is not easy to adhere to the surface of the electrode 2. When the power cord is used, after the protective cover 5 is separated from the electrode 2, the electrode 2 is not easy to cause safety accidents such as electric shock and the like due to water when being connected with a power supply, and the potential safety hazard is small.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fire-retardant power cord, includes plug body (1), installs electrode (2) that are used for connecting the power on one side of plug body (1) and installs wire (3) that are used for transmission current on plug body (1) opposite side, its characterized in that: the plug comprises a plug body (1), a protective cover (5) is rotatably connected to the plug body (1) through a connecting piece, a protective groove (51) for inserting an electrode (2) is formed in the protective cover (5), and a stop piece detachably connected with the plug body (1) is arranged on one side, away from the connecting piece, of the protective cover (5); when the stopper is connected to the plug body (1), the protective cover (5) is located outside the electrode (2).

2. The flame retardant power cord according to claim 1, wherein: the stopper is including fixing in protection casing (5) and being close to electrode (2) one side and have elastic stop block (52), be fixed with extension piece (12) on the lateral wall that connecting piece was kept away from in plug body (1), offer on extension piece (12) and supply stop block (52) deformation card to go into locking groove (121).

3. The flame retardant power cord according to claim 1, wherein: the opening of the protective groove (51) is gradually reduced from one end close to the electrode (2) to one end far away from the electrode (2).

4. The flame retardant power cord according to claim 3, wherein: the minimum width of the protective groove (51) is not more than the width of the electrode (2).

5. The flame retardant power cord according to claim 1, wherein: the connecting piece includes flexible connecting cloth (4), the one end of connecting cloth (4) is fixed on protection casing (5), and the other end can be dismantled and connect and keep away from one side of extending piece (12) in plug body (1).

6. The flame-retardant power cord according to claim 5, wherein: the plug is characterized in that a positioning block (11) is fixed on the side wall, far away from the extension block (12), of the plug body (1), a positioning hole (111) for the connection cloth (4) to penetrate through is formed in the positioning block (11), and a fixing piece (6) used for limiting the connection cloth (4) to be separated from the positioning hole (111) is arranged on the connection cloth (4).

7. The flame retardant power cord according to claim 6, wherein: mounting (6) including the interval set up at connecting cloth (4) homonymy and magic subsides hook strip (61) and magic subsides hair piece (62) of mutually supporting, hook strip (61) are pasted to the magic sets up in the tip of connecting cloth (4), magic subsides hair piece (62) are located between hook strip (61) and protection casing (5) are pasted to the magic.

8. The flame retardant power cord according to claim 1, wherein: the lead (3) comprises a wire core (31), a shielding layer (32), an insulating layer (33) and an FEP sheath (35) which are sequentially arranged from inside to outside, wherein an aramid fiber flame-retardant layer (34) is further arranged between the insulating layer (33) and the FEP sheath (35).

9. The flame retardant power cord according to claim 8, wherein: and an expansion type fireproof coating layer (36) is arranged on the outer side of the FEP sheath (35).