CN210052910U

CN210052910U - Wire protective tube structure, wire end structure, and break-proof structure for leading-out wire of electrical appliance

Info

Publication number: CN210052910U
Application number: CN201920925950.3U
Authority: CN
Inventors: 高雄
Original assignee: Foshan Min Qi Mechanical And Electrical Technology Co Ltd
Current assignee: Foshan Min Qi Mechanical And Electrical Technology Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-02-11
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a line pillar structure, line tip structure, with preventing disconnected structure of electrical apparatus extraction electric wire. The thread protecting tube structure comprises a thread protecting tube, wherein the thread protecting tube is made of flexible materials and is provided with a thread hole, the axial direction of the thread hole is along the length direction of the thread protecting tube, and a fixing structure and/or a fixing part for preventing a thread from moving backwards is arranged behind the bendable part of the thread protecting tube. The wire end structure comprises a wire, wherein a wire fixing piece for preventing the wire end from moving backwards is arranged on the side surface of the end part of one end of the wire. The anti-breaking structure for the leading-out wire of the electrical appliance comprises the wire and an electrical appliance shell. The utility model discloses can obviously reduce the fracture probability of drawing forth the electric wire, create the advantage for customer's smooth construction.

Description

Wire protective tube structure, wire end structure, and break-proof structure for leading-out wire of electrical appliance

Technical Field

The utility model relates to a line pillar, line tip, with electrical apparatus, especially relate to a line pillar structure, line tip structure, with preventing disconnected structure of electrical apparatus extraction electric wire.

Background

It is known that the lead-out wires of electrical appliances (especially hand-held electrical appliances with large vibration and/or large bending angle) are easy to break. In order to reduce the probability of breakage of the outgoing wires, wire sheaths are often added between the ends of the wires and the electrical consumers. As shown in fig. 1, a conventional structure for leading out an electric wire from an electrical appliance comprises a wire (electric wire) 2 and an electrical appliance housing 3, the wire (electric wire) 2 is in protective connection with the electrical appliance housing 3 through a wire protection tube 1, an end of the wire (electric wire) 2 passes through the wire protection tube 1, a front portion of the wire protection tube 1 presses the end of the wire (electric wire) through a tube head pressing plate 3-1, the end of the wire (electric wire) 2 is pressed through a gasket 3-2 and a screw 3-3 to be fixedly connected with the electrical appliance housing 3, and a middle portion of the wire protection tube 1 is a flexible portion (a middle portion of the protection tube 1 in fig. 1). Due to the protection of the wire protective tube, the breakage probability of the lead-out wire is reduced, but the effect is not obvious. After the electromagnetic heating welding gun produced by the applicant is sold, the problem that a lead-out wire of the electromagnetic heating welding gun is broken is often reflected by a client, and according to the knowledge of the applicant, most of handheld electric appliances (such as a percussion drill, a punching drill, a creeping welding machine, a hot air welding gun, a vibrator, an electric coal drill, various types of grinding machines and electric tamping machines) have the problem that the lead-out wire is broken. This problem seems to be insignificant, and is solved by the customer cutting a section to reconnect or replace a new line sheath and reinstall it. However, the problem of frequent disconnection brings great trouble to customers, even if the outgoing line is disconnected to repair the machine, huge economic loss is caused to the customers due to prolonged construction period. In order to solve the problem, the applicant takes a long time (about three years) to perform numerous experiments, for example, the wall thickness of the wire protecting pipe is increased, the fracture probability is not obviously reduced, and the wire protecting pipe made of a hard material not only does not reduce the fracture probability, but also increases the fracture probability. The applicant does not find the cause of the wire breakage after searching a large amount of scientific and technical documents. In order to find out the reason of the wire breakage, the applicant invests a large amount of funds to purchase experimental equipment, makes a large amount of experiments, finally finds out the reason of the wire breakage, and makes substantial improvements on a wire protecting tube structure, a wire end structure, an anti-breakage structure of an electric appliance outgoing wire and an installation method thereof in the prior art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved first technical problem of the utility model is to provide a line pillar structure, this line pillar structure can obviously reduce the fracture probability of lead-out wire, has created the advantage for customer's smooth construction.

The to-be-solved second technical problem of the utility model is to provide a line end structure, this line end structure can obviously reduce the fracture probability of lead-out wire, has created the advantage for customer's smooth construction.

The to-be-solved third technical problem of the utility model is to provide a prevent disconnected structure with electrical apparatus extraction wire, should prevent disconnected structure and can obviously reduce the fracture probability of extraction wire, created the advantage for customer's smooth construction.

The to-be-solved fourth technical problem of the utility model is to provide an installation method with disconnected structure of electric appliance outgoing line anti-break, this installation method can obviously reduce the fracture probability of outgoing line, has created the advantage for customer's smooth construction.

In order to solve the first technical problem, the present invention provides a thread protecting tube structure, including a thread protecting tube made of a flexible material and having a threading hole, wherein an axis direction of the threading hole is along a length direction of the thread protecting tube, and the thread protecting tube is provided with a fixing structure and/or a fixing member for preventing a thread from moving backwards after being located at a flexible position.

The fixing structure is a necking fixing structure and/or a shoulder fixing structure and/or an inverted ring fixing structure and/or an inverted tooth fixing structure and/or a groove cutting fixing structure and/or an end face connection fixing structure;

the contact part of the fixing structure is coated with glue;

the neck-reducing type fixing structure is a neck-reducing hole arranged at the rear part of the threading hole;

the neck hole is coaxial with the threading hole;

the inner diameter of the neck reducing hole is smaller than the inner diameter of the middle part of the threading hole;

the shoulder type fixing structure is a clamping shoulder positioned between the rear part and the middle part of the threading hole;

the hole walls of the middle part and the front part of the threading hole are expanded outwards along the radial direction to form expanded holes;

the inner diameter of the rear part of the threading hole corresponds to the diameter of the thread;

the inner diameters of the middle part and the front part of the threading hole are larger than the inner diameter of the rear part of the threading hole;

the clamping shoulder is a plane clamping shoulder or an outer conical surface clamping shoulder or an outer spherical surface clamping shoulder or an inner conical surface clamping shoulder or an inner spherical surface clamping shoulder;

the reverse ring type fixing structure is a plurality of reverse stopping rings which are distributed along the axial direction at the rear part of the inner wall of the threading hole;

the front end surface of the anti-retreat reverse ring is an outer conical surface or an outer spherical surface;

the rear end surface of the retreat resisting reverse ring is an inner conical surface or an inner spherical surface;

the inner diameter of the rear part of the threading hole is less than or equal to the diameter of the thread;

the inverted tooth type fixing structure is a plurality of anti-retreating inverted teeth which are distributed on the rear part of the inner wall of the threading hole along the circumferential direction and the axial direction in a matrix manner;

the tooth tips of the anti-retreat reverse teeth point to the axis of the threading hole and are inclined forwards;

the groove type fixing structure is a groove which is arranged at the tail part of the inner wall of the threading hole along the axial direction of the threading hole;

three vertical plane notches are respectively arranged on the outer sides of the two walls of the cutting groove;

the two walls of the groove are correspondingly provided with clamping holes in the three vertical plane notches;

the clamping hole is provided with a clamping bolt;

the end face connection type fixing structure is a fixing threaded hole distributed on the end face of the tail part of the wire protection pipe;

an annular fixing groove is formed in the side face of the rear part of the wire protecting pipe along the circumferential direction;

the annular fixing groove corresponds to the anti-backing ring; alternatively, the first and second electrodes may be,

the annular fixing groove corresponds to the anti-retreat pawl;

one or two or three annular fixing grooves are formed;

two or three annular fixing grooves are distributed along the axial direction of the line protection pipe;

the fixing component is arranged in the annular fixing groove;

the fixing part is a tightening fixing part and/or a binding fixing part and/or a pressing fixing part;

the tightening type fixing part is a screw tightening type fixing part or a screwless tightening type fixing part;

the screw tightening type fixing part comprises a guide cylinder, a toothed belt and a tightening screw;

one end of the toothed belt is fixedly connected with the outer wall of one end of the guide cylinder;

the other end of the toothed belt is bent and then inserted into the guide hole from the other end of the guide cylinder;

the tightening screw is placed into the guide hole from one end of the guide cylinder and is in rotary connection with the guide cylinder;

the tightening screw is meshed with the teeth on the toothed belt;

the screwless tightening type fixing part comprises a guide cylinder and a toothed belt;

the inner side wall of the guide cylinder is provided with cylinder inner inverted teeth;

the inverted teeth in the guide cylinder point to one end of the guide cylinder obliquely;

the teeth of the toothed belt are inverted teeth with surfaces;

the belt surface inverted teeth point to one end of the toothed belt obliquely;

the inner pawl of the cylinder is meshed with the face pawl;

the binding type fixing component comprises a metal wire or a non-metal wire;

the binding type fixing component comprises a metal wire or a metal fabric or a non-metal wire or a non-metal fabric;

the metal wire or the metal fabric or the nonmetal wire or the nonmetal fabric is fixed by bonding or welding after binding the rear part of the wire protective tube;

the metal wire comprises a copper wire, an iron wire or an aluminum wire;

the metal fabric comprises a copper fabric or an iron fabric or an aluminum fabric or a titanium fabric;

the non-metal fabric is polytetrafluoroethylene fabric or polytetrafluoroethylene fabric with rubber or tire thread fabric or cotton cloth or linen or chemical fiber cloth or glass fiber cloth;

the metal wire is fixed by bonding or welding after being bound on the rear part of the wire protecting pipe;

the bonding and fixing are performed by using glue;

the welding fixation is realized by soldering, brazing, aluminum welding or butt welding;

bonding with glue after welding;

the wire protecting tube is provided with a fixing component outer sleeve;

the fixing component outer sleeve is a thermal shrinkage fixing component outer sleeve or an elastic fixing component outer sleeve;

the elastic fixing component outer sleeve is made of the flexible material;

before the metal wire is bound with the wire protecting pipe, a layer of fabric or a harder substance is bound at the binding part of the metal wire;

one layer of the fabric is polytetrafluoroethylene fabric or adhesive polytetrafluoroethylene fabric or tire thread fabric or cotton cloth or linen or chemical fabric or glass fiber cloth;

the fabric is polytetrafluoroethylene fabric or tire thread fabric or cotton cloth or linen or chemical fabric cloth or glass fiber cloth;

the harder material is a plastic belt, or leather or a curled metal skin, such as a copper skin, an iron sheet and an aluminum skin;

the compression type fixing part comprises two compression plates and two compression bolts;

the two compression plates are in an omega shape;

two ends of the compression plate are provided with compression holes;

the two pressing plates press the rear part of the wire protective pipe and are connected in a pressing manner through the two pressing bolts;

the outer diameter of the tail end of the wire protecting pipe is equal to the outer diameter of the rear part of the wire protecting pipe;

alternatively, the first and second electrodes may be,

the outer diameter of the tail end of the wire protecting pipe is smaller than that of the rear part of the wire protecting pipe;

the tail end of the wire protecting pipe is in transitional connection with the rear part of the wire protecting pipe through a conical surface;

the head end of the wire protecting tube is provided with a fixed structure connected with the electrical appliance shell;

the fixing structure is a tube head clamping flange formed by radially and outwardly expanding the side surface of the head end of the wire protection tube;

the shape of the clamping flange of the tube head is matched with the shape surrounded by the inner wall of the electrical appliance shell at the outlet;

a clamping groove is formed in the side face of the clamping flange;

the clamping grooves are formed in two side faces, back to back, of the clamping flanges;

the two opposite side surfaces are respectively provided with two clamping grooves;

the two clamping grooves on the two opposite side surfaces are symmetrically arranged relative to the combined flange;

a second half counter sink and a fixing hole are formed in one side of the clamping flange;

a first half counter sink is arranged on the other side of the clamping flange;

alternatively, the first and second electrodes may be,

the shape of the pipe head clamping flange is a cylinder;

the tube head clamping flange is provided with an extrusion gasket and a perforation extrusion screw;

alternatively, the first and second electrodes may be,

the fixing structure is a pipe head fixing lug which is respectively arranged on two sides of the head end of the wire protecting pipe;

the flexible material is silica gel, rubber, polyvinyl chloride plastic, polyethylene plastic, ethylene-vinyl acetate copolymer plastic, thermoplastic polyurethane elastomer, thermoplastic elastomer material and thermoplastic rubber material;

the silica gel is dimethyl silica gel, methyl vinyl silica gel, methyl phenyl vinyl silica gel, fluorine silica gel, nitrile silica gel, phenyl silica gel, ethyl silica gel and silicon nitrogen rubber;

the rubber is natural rubber, isoprene rubber, styrene butadiene rubber, chloroprene rubber, nitrile rubber, silicon rubber and ethylene propylene rubber.

Compared with the prior art, the wire protecting tube structure of the utility model has the following beneficial effects.

1. According to the technical scheme, the thread protection tube is made of a flexible material and is provided with a thread hole, the axial direction of the thread hole is along the length direction of the thread protection tube, a fixing structure and/or a fixing part for preventing the thread from moving backwards is arranged behind the position, where the thread protection tube is easy to bend, and the part, where the thread is repeatedly bent, of the thread (from the front part, where the thread is located in the thread protection tube, to the front part, where the thread is fixed), is subjected to extremely small axial force, so that the thread is not easy to break in the process of repeated bending; the part of the wire subjected to the axial force (after the wire is fixed) is not easy to be repeatedly bent and broken, so that the wire protecting tube structure can obviously reduce the breakage probability of the outgoing wire and create favorable conditions for smooth construction of customers.

Here, the applicant is required to explain the knowledge of the cause of the wire breakage. The applicant has made detailed observations and thinking in long-term working practice. The height of a common high-speed rail or high-speed tunnel is about nine meters, when a gun handle is held by a hand to work in high-altitude operation, an operating wire is always influenced by gravity to move downwards, the downward pulling force enables the wire positioned in the wire protection tube to be under the action of axial acting force and repeated bending moment, the weight of the operating wire of nine meters is about two kilograms, and therefore a wire core in the wire protection tube is easily damaged.

In order to greatly reduce or even eliminate the axial force applied to the wire core in the wire protection tube, the end part of the wire is fixedly connected with the rear end of the wire protection tube, so that the axial force applied to the part (from the front part of the wire in the wire protection tube to the front part of the wire at the fixed part) of the repeatedly bent part of the wire is extremely small or even zero, and the wire is not easy to break in the repeatedly bending process; meanwhile, the electric wire is not easy to be repeatedly bent and broken at the part (after the wire is fixed) subjected to the axial force. To be confirmed by the experiment, the applicant bought a huge amount of money for the wire bending machine.

In the experimental process of the simulation of the electric wire bending machine, in order to unify experimental conditions, the bending swing angle is uniformly set to be 180 degrees, the bending swing speed is uniformly set to be 29 times per minute, the balance weight is uniformly set to be two 500 g hoisting blocks and one 300 g hoisting block, and the total weight of the three hoisting blocks is 1300 g.

Unifying the operation lines: the same group of experiments use 2 by 2.5 plus 4 by 1 six-core cables, or the same group of experiments use 2 by 2.5 plus 3 by 1 five-core cables, and for the test comparison to be accurate, the same cable segment test is used.

The wire breakage counting standards are unified: the broken first line is taken as the counting criterion.

The wire bending machine can simultaneously obtain the six groups of wires at each time, and because the indicating lamps are limited and the gun shell is used for testing the load, only two groups of wires are used.

Firstly, the common sheath is tested for comparison, and the common protection tube can be bent for about 3 thousand to 9 thousand times to cut off a thin wire core.

Use the utility model discloses the protective sheath can buckle 2.5 ten thousand times to about 3 ten thousand times and has broken a thin sinle silk. The wire breakage probability is significantly reduced.

Use the utility model discloses the protective tube, including lubricating oil can buckle 4 ten thousand times to about 5 ten thousand times and disconnected a thin sinle silk in the protective tube. The probability of wire breakage is further significantly reduced.

Because the utility model discloses a line pillar has managed a lot more than traditional line, protects the pipe wall for proving not just to increase the number of times of buckling because of the thickening, we have done again and use the utility model discloses it is fixed that the afterbody is not done to the pillar, is the same with traditional pillar with the fixed cable conductor of checkpost in the rifle, under the condition of not adding lubricating oil, the experimental result is about 1.2 ten thousand times to 2 ten thousand times, has broken a thin sinle silk.

In order to research the reason why the thin wire is always broken firstly, various cables and various installation modes are used, finally, an unexpected harvest is given, and the inventor finds that when the cables penetrate into the protective tube, the outer skin of the cables is removed by about five millimeters beyond the locking position, the cables are arranged in the protective tube, six cables are loosely placed in the protective tube in a spiral shape, the cables are bent for more than 42 thousands of times (the installation mode is described in detail later), and the thick wire is broken firstly.

In another set of experiments, two thick lines of the six thick lines are corrugated, four thin lines are wound on the two thick lines and put into a protective tube, and the protective tube is bent for 38.2 ten thousand times, and the thin lines are cut off first.

According to the analysis of experimental results, when the bending reaches 180 degrees, the bending position of the protective pipe is about 10 cm, the average bending angle per cm is 18 degrees, when the electric wires are in a spiral shape and a corrugated shape, the actual pulling length of the electric wires is more than 10 cm, and the average bending angle of the electric wires obtained by pulling the electric wires is less than 18 degrees.

Meanwhile, as the lubricating oil is filled in the protective tube, the external resistance of the wire is reduced, and the wire can be uniformly bent at a maximum angle.

It is simultaneously because the utility model discloses line pillar rear portion locking is fixed for the electric wire can be in the line pillar do loose spiral and corrugated lay, and not straightened.

Because the fire-fighting pipe is strict, a factory on duty has power cut, the last test takes more than twenty days, the machine is damaged midway, the test is stopped for three days, and the time spent from the formal research and development of the line protection pipe is more than one year so far.

2. The technical scheme adopts the technical means that the fixing structure is a neck-reducing fixing structure (simple in structure and easy to manufacture) and/or a shoulder-type fixing structure (not only is beneficial to threading, but also is reliable in fixing) and/or an inverted ring-type fixing structure (not only simple in structure and reliable in fixing) and/or an inverted tooth-type fixing structure (not only simple in structure and reliable in fixing), a groove-type fixing structure (not only is beneficial to threading, but also is reliable in fixing) and/or an end face connection type fixing structure (convenient to detach), so that various line protection tube structures can be manufactured according to the requirements and actual conditions of different customers.

3. In the technical scheme, the necking fixing structure is a necking hole arranged at the rear part of the threading hole; the neck hole is coaxial with the threading hole; the inner diameter of the neck hole is smaller than that of the middle part of the threading hole, so that the thread end can be ensured to be fixed behind the thread protecting tube at a position which is easy to bend, and simultaneously, the thread end is favorably fixed.

4. In the technical scheme, the shoulder type fixing structure is a clamping shoulder positioned between the rear part and the middle part of the threading hole; the hole walls of the middle part and the front part of the threading hole are expanded outwards along the radial direction to form an expanded hole, so that the thread end part is favorably and stably fixed, and favorable conditions are provided for further improvement later.

5. The technical proposal adopts the technical proposal that the inner diameter of the rear part of the threading hole is corresponding to the diameter of the thread; the inner diameters of the middle part and the front part of the threading hole are larger than the inner diameter of the rear part of the threading hole, so that the thread end part can be further fixed.

6. According to the technical scheme, the clamping shoulder is a plane clamping shoulder or an outer conical surface clamping shoulder or an outer spherical surface clamping shoulder or an inner conical surface clamping shoulder or an inner spherical surface clamping shoulder.

7. According to the technical scheme, the inverted ring type fixing structure is a technical means that a plurality of anti-backing inverted rings are axially distributed at the rear part of the inner wall of the threading hole, so that the end part of the threading hole can be further fixed.

8. According to the technical scheme, the front end face of the anti-backing ring is an outer conical surface or an outer spherical surface; the rear end surface of the retreat resisting reverse ring is an inner conical surface or an inner spherical surface; the inner diameter of the rear part of the threading hole is smaller than or equal to the diameter of the thread, so that various thread protection tube structures can be manufactured according to the requirements and actual conditions of different customers.

9. According to the technical scheme, the inverted tooth type fixing structure is formed by a plurality of anti-retreat inverted teeth which are distributed on the rear portion of the inner wall of the threading hole along the circumferential direction and the axial direction in a matrix manner; the tooth tips of the anti-retreat reverse teeth point to the axis of the threading hole and are inclined forwards; the inner diameter of the rear part of the threading hole is smaller than or equal to the diameter of the thread, so that the thread end part is further fixed.

10. The technical scheme adopts the groove type fixing structure that the groove is arranged at the tail part of the inner wall of the threading hole along the axial direction of the threading hole; three vertical plane notches are respectively arranged on the outer sides of the two walls of the cutting groove; the two walls of the groove are correspondingly provided with clamping holes in the three vertical plane notches; the clamping hole is provided with a technical means of a clamping bolt, so that the wire end part is further fixed, and the wire end part and the wire protecting pipe are assembled and disassembled.

11. According to the technical scheme, the end face connection type fixing structure is a technical means of fixing threaded holes distributed in the end face of the tail part of the wire protection pipe, so that the wire protection pipe can be fixedly connected with a wire in various modes.

12. According to the technical scheme, the annular fixing groove is formed in the side face of the rear part of the wire protecting pipe along the circumferential direction; the annular fixing groove corresponds to the anti-backing ring; or the annular fixing groove and the anti-retreat pawl correspond to each other, so that the wire end part can be further fixed.

13. One or two or three annular fixing grooves are adopted in the technical scheme; two or three annular fixing grooves are distributed along the axial direction of the thread protecting pipe, so that the thread protecting pipe is beneficial to further fixing the thread end part.

14. According to the technical scheme, the technical means that the fixing part is arranged in the annular fixing groove is adopted, so that the end part of the wire can be further fixed.

15. According to the technical scheme, the technical means that the fixing part is the hooping type fixing part and/or the binding type fixing part and/or the pressing type fixing part is adopted, so that various wire protection pipe structures can be manufactured according to the requirements and actual conditions of different customers.

16. According to the technical scheme, the tightening type fixing part is a screw tightening type fixing part or a screwless tightening type fixing part; the screw tightening type fixing part comprises a guide cylinder, a toothed belt and a tightening screw; one end of the toothed belt is fixedly connected with the outer wall of one end of the guide cylinder; the other end of the toothed belt is bent and then inserted into the guide hole from the other end of the guide cylinder; the tightening screw is placed into the guide hole from one end of the guide cylinder and is in rotary connection with the guide cylinder; the tightening screw is meshed with the teeth on the toothed belt; the screwless tightening type fixing part comprises a guide cylinder and a toothed belt; the inner side wall of the guide cylinder is provided with cylinder inner inverted teeth; the inverted teeth in the guide cylinder point to one end of the guide cylinder obliquely; the teeth of the toothed belt are inverted teeth with surfaces; the belt surface inverted teeth point to one end of the toothed belt obliquely; one end of the toothed belt is fixedly connected with the outer wall of one end of the guide cylinder; the other end of the toothed belt is bent and then inserted into the guide hole from the other end of the guide cylinder; the technical means that the inner pawl of the cylinder is meshed with the face pawl is adopted, so that the line protecting tube can be quickly and fixedly connected with the line end.

17. The technical proposal adopts the binding type fixing part which comprises a metal wire or a non-metal wire; the metal wire comprises a copper wire, an iron wire or an aluminum wire; the metal wire is fixed by bonding or welding after being bound on the rear part of the wire protecting pipe; the bonding and fixing are performed by using glue; the welding fixation is realized by soldering, brazing, aluminum welding or butt welding; after welding, the adhesive is adhered by glue, so that the adhesive is not easy to scratch with other objects.

18. In the technical scheme, a layer of fabric or a harder substance is bound at the binding position of the metal wire before the metal wire is bound with the wire protecting pipe; the fabric is polytetrafluoroethylene fabric or tire thread fabric or cotton cloth or linen or chemical fabric cloth or glass fiber cloth; the harder material is a plastic belt or leather or curled metal skin, such as copper skin, iron sheet and aluminum skin, so the wire protection tube is prevented from being crushed.

19. According to the technical scheme, the pressing type fixing part comprises two pressing plates and two pressing bolts; the two compression plates are in an omega shape; two ends of the compression plate are provided with compression holes; the two pressing plates press the rear part of the wire protection pipe and are connected in a pressing mode through the two pressing bolts, so that the wire protection pipe is simple in structure and convenient to install.

20. According to the technical scheme, the outer diameter of the tail end of the wire protecting pipe is equal to the outer diameter of the rear part of the wire protecting pipe; or the outer diameter of the tail end of the wire protecting pipe is smaller than the outer diameter of the rear part of the wire protecting pipe; the tail end of the wire protecting tube is in transition connection with the rear part of the wire protecting tube through a conical surface, so that the flexibility of the tail end of the wire protecting tube is kept.

21. According to the technical scheme, the technical means that the fixing structure connected with the electric appliance shell is arranged at the head end of the wire protective tube is adopted, so that the wire protective tube is favorably prevented from slipping off the electric appliance shell.

22. In the technical scheme, the fixing structure is a tube head clamping flange formed by radially and outwardly expanding the side surface of the head end of the wire protection tube; the shape of the clamping flange of the tube head is matched with the shape surrounded by the inner wall of the electrical appliance shell at the outlet; a clamping groove is formed in the side face of the clamping flange; the clamping grooves are formed in two side faces, back to back, of the clamping flanges; the two opposite side surfaces are respectively provided with two clamping grooves; the two clamping grooves on the two opposite side surfaces are symmetrically arranged relative to the combined flange; a second half counter sink and a fixing hole are formed in one side of the clamping flange; a first half counter sink is arranged on the other side of the clamping flange; or the shape of the pipe head clamping flange is a cylinder; the tube head clamping flange is provided with an extrusion gasket and a perforation extrusion screw; or the fixing structure is a technical means of the tube head fixing lugs respectively arranged at the two sides of the head end of the wire protecting tube, so that the wire protecting tube and the shell of the electric appliance can be ensured not to slip off.

In view of the above-mentioned second technical problem, the present invention provides a wire end portion structure including a wire having a diameter larger than an inner diameter of a neck hole of a wire protector, and/or a wire fixing member provided to an end side of one end of the wire to prevent the wire end portion from moving backward.

The wire is a metal wire or a non-metal wire;

the metal wire is an electric wire;

the electric wire has at least two strands of core wires;

the core wire is coated with an insulating sheath;

the multi-strand core wire and the tensile wire are coated with insulating protective sheaths;

the ends of the line are straight or curved;

the curve is a spiral curve or a wave-shaped curve;

removing the insulating protective sheath from the end of the wire;

the tensile wires are knotted at the end parts of the insulating protection outer skins;

the wire securing member is an annular ring;

the annular ring is an annular rubber ring;

the annular rubber ring is a flat bottom surface annular rubber ring or an outer cone bottom surface annular rubber ring or an outer ball bottom surface annular rubber ring or an inner cone bottom surface annular rubber ring or an inner ball bottom surface annular rubber ring;

the annular rubber ring is fixedly connected with the side face of the end part of one end of the wire through glue;

the glue is soft glue;

alternatively, the first and second electrodes may be,

the annular ring is an extrusion holding annular ring;

the extrusion clasping annular ring comprises an extrusion column, an extrusion sleeve and an extrusion rubber ring;

the extrusion column is cylindrical in shape;

the extrusion column is provided with an extrusion column threading hole at the position of the axis;

the inner diameter of the thread hole of the extrusion column is larger than the diameter of the thread;

the extrusion sleeve is in a pipe body shape;

one port of the extrusion sleeve is radially and inwardly contracted to form an extrusion sleeve threading hole;

the inner diameter of the thread hole of the extrusion sleeve is larger than the diameter of the thread;

the extrusion rubber ring is positioned in the extrusion sleeve;

the inner diameter of the extruded rubber ring in a natural state corresponds to the diameter of the wire;

the extrusion holding annular ring is divided into a threaded column extrusion holding annular ring and a screw extrusion holding annular ring;

the outer side wall of the extrusion column of the threaded column extrusion clasping annular ring is provided with an external thread;

the inner side wall of the threaded column extruding and clasping annular ring is provided with internal threads;

the end part of one end of the wire penetrates through the extrusion sleeve, the extrusion rubber ring and the extrusion column;

the extrusion sleeve is connected with the extrusion column through threads to extrude the extrusion sleeve;

the extrusion sleeve clasps the wire;

the screw extrudes the end surface of the extrusion sleeve tightly embracing the annular ring, and threaded extrusion holes are distributed along the circumferential direction;

extrusion holes are distributed on the end surface of the extrusion rubber ring along the circumferential direction;

extrusion holes are distributed on the end surface of the extrusion column along the circumferential direction;

the end part of one end of the wire sequentially penetrates through the extrusion sleeve, the extrusion rubber ring and the extrusion column;

the extrusion sleeve and the extrusion column are connected through an extrusion screw to extrude the extrusion rubber ring;

the extrusion rubber ring clasps the wire;

alternatively, the first and second electrodes may be,

the end surface of the extrusion sleeve of the screw extrusion clasping annular ring is circumferentially provided with extrusion holes;

threaded extrusion holes are distributed on the end face of the extrusion column along the circumferential direction;

the extrusion rubber ring clasps the wire;

the extrusion enclasping annular ring is divided into an inner extrusion enclasping annular ring and an outer extrusion enclasping annular ring;

fixing holes are distributed on the end face of the extrusion sleeve of the external extrusion clasping annular ring;

the number of the fixing holes is equal to that of the extrusion threaded holes;

the fixing holes and the extrusion threaded holes are distributed at intervals;

alternatively, the first and second electrodes may be,

fixing holes are distributed on the end face of the extrusion column of the external extrusion clasping annular ring;

the fixing holes and the extrusion threaded holes are distributed at intervals;

the annular ring is sheathed on the insulating protective sheath of the wire;

the wire is provided with a sealing rubber ring;

the wire and the sealing rubber ring are connected in a sealing mode through glue.

Compared with the prior art, the wire end structure of the utility model has the following beneficial effects.

1. According to the technical scheme, the diameter of the wire is larger than the inner diameter of the necking hole of the wire protection tube, and/or the side face of the end part at one end of the wire is provided with a wire fixing piece for preventing the wire end part from moving backwards, so that the breakage probability of the outgoing wire can be obviously reduced by the wire end part structure, and favorable conditions are created for smooth construction of customers.

2. The technical scheme adopts the technical means that the wire is a metal wire or a nonmetal wire, so the technical scheme can be applied to various fields.

3. In the technical scheme, the metal wire is adopted as the electric wire; the electric wire has at least two strands of core wires; the core wire is coated with an insulating sheath; the technical means that the stranded core wires and the tensile wires are coated with the insulating protective sheaths are adopted, so that the core wires and the tensile wires can be applied to the field of electricity, particularly the field of handheld electric appliances.

4. The end part of the line is a straight line or a curve; the curve is a spiral curve or a wave curve, so that the repeated bending curvature of the wire end can be greatly reduced, and the breakage probability of the wire is reduced to the maximum extent.

5. The technical scheme adopts the technical means that the end part of the wire is removed with the insulating protective sheath, so that the space occupied by the end part of the wire can be effectively reduced, and the wire is favorably put into a cavity in the protective tube in a loose state of a spiral type, a corrugated type and the like.

6. According to the technical scheme, the technical means that the tensile wires are knotted at the end parts of the insulating protection outer skins is adopted, so that the wire cores can be effectively prevented from being stretched due to gravity.

7. According to the technical scheme, the technical means that the wire fixing piece is an annular ring is adopted, so that the end part of the wire is favorably and stably fixed.

8. According to the technical scheme, the annular ring is an annular rubber ring, so that the outer skin of the end part of the electric wire is not easily damaged.

9. According to the technical scheme, the annular rubber ring is a flat bottom surface annular rubber ring or an outer cone bottom surface annular rubber ring or an outer spherical bottom surface annular rubber ring or an inner cone bottom surface annular rubber ring or an inner spherical bottom surface annular rubber ring, so that various wire end structures can be manufactured according to the requirements and actual conditions of different customers.

10. According to the technical scheme, the annular rubber ring is fixedly connected with the side face of the end part of one end of the wire through glue; the glue is a technical means of soft glue, so that the flexibility of the wire end part is kept.

11. The technical proposal adopts the annular ring which is an extrusion holding annular ring; the extrusion clasping annular ring comprises an extrusion column, an extrusion sleeve and an extrusion rubber ring; the extrusion column is cylindrical in shape; the extrusion column is provided with an extrusion column threading hole at the position of the axis; the inner diameter of the thread hole of the extrusion column is larger than the diameter of the thread; the extrusion sleeve is in a pipe body shape; one port of the extrusion sleeve is radially and inwardly contracted to form an extrusion sleeve threading hole; the inner diameter of the thread hole of the extrusion sleeve is larger than the diameter of the thread; the extrusion rubber ring is positioned in the extrusion sleeve; the inner diameter of the extrusion rubber ring in a natural state corresponds to the diameter of the wire, so that the assembly and disassembly are facilitated.

12. According to the technical scheme, the extrusion holding annular ring is divided into a threaded column extrusion holding annular ring and a screw extrusion holding annular ring; the outer side wall of the extrusion column of the threaded column extrusion clasping annular ring is provided with an external thread; the inner side wall of the threaded column extruding and clasping annular ring is provided with internal threads; the end part of one end of the wire penetrates through the extrusion sleeve, the extrusion rubber ring and the extrusion column; the extrusion sleeve is connected with the extrusion column through threads to extrude the extrusion sleeve; the extrusion sleeve clasps the wire; the screw extrudes the end surface of the extrusion sleeve tightly embracing the annular ring, and threaded extrusion holes are distributed along the circumferential direction; extrusion holes are distributed on the end surface of the extrusion rubber ring along the circumferential direction; extrusion holes are distributed on the end surface of the extrusion column along the circumferential direction; the end part of one end of the wire sequentially penetrates through the extrusion sleeve, the extrusion rubber ring and the extrusion column; the extrusion sleeve and the extrusion column are connected through an extrusion screw to extrude the extrusion rubber ring; the extrusion rubber ring clasps the wire; or the end surface of the extrusion sleeve of the screw extrusion clasping annular ring is circumferentially provided with extrusion holes; extrusion holes are distributed on the end surface of the extrusion rubber ring along the circumferential direction; threaded extrusion holes are distributed on the end face of the extrusion column along the circumferential direction; the end part of one end of the wire sequentially penetrates through the extrusion sleeve, the extrusion rubber ring and the extrusion column; the extrusion sleeve and the extrusion column are connected through an extrusion screw to extrude the extrusion rubber ring; the technical means of the extruded rubber ring clasping the wire is adopted, so that various wire end structures can be manufactured according to the requirements and actual conditions of different customers.

13. The technical scheme is that the extrusion holding annular ring is divided into an inner extrusion holding annular ring and an outer extrusion holding annular ring; fixing holes are distributed on the end face of the extrusion sleeve of the external extrusion clasping annular ring; the number of the fixing holes is equal to that of the extrusion threaded holes; the fixing holes and the extrusion threaded holes are distributed at intervals; or fixing holes are distributed on the end face of the extrusion column of the outer extrusion clasping annular ring; the number of the fixing holes is equal to that of the extrusion threaded holes; the technical means that the fixing holes and the extrusion threaded holes are distributed at intervals can manufacture various wire end structures according to the requirements and actual conditions of different customers.

14. In the technical scheme, the annular ring is sleeved on the insulating protective sheath of the wire; the wire is provided with a sealing rubber ring; the thread and the sealing rubber ring are connected in a sealing mode through glue, so that the lubricating oil in the thread protecting pipe can be prevented from flowing out.

In case of using electrical apparatus, in order to solve the third technical problem, the utility model provides an use disconnected structure of preventing of electrical apparatus extraction electric wire, including the electric wire with use electrical apparatus casing, the electric wire with connect through the protection of wire protecting tube between the electrical apparatus casing, the structure of wire protecting tube is as before the wire protecting tube structure, the end structure of electric wire is as before the line end structure.

The end part of the thread passes through the thread hole of the thread protecting pipe;

the neck-contracting hole of the wire protecting tube is fixedly connected with the side wall of the wire in an embracing way;

alternatively, the first and second electrodes may be,

the plane clamping shoulder of the wire protecting tube is connected with the flat bottom annular rubber ring of the wire in a clamping manner;

alternatively, the first and second electrodes may be,

the plane clamping shoulder of the wire protecting pipe is clamped and connected with the inner extrusion clasping annular ring of the wire;

alternatively, the first and second electrodes may be,

the outer conical surface clamping shoulder of the wire protecting pipe is connected with the inner conical bottom surface annular rubber ring of the wire in a clamping manner;

alternatively, the first and second electrodes may be,

the outer spherical surface clamping shoulder of the wire protection tube is connected with the inner spherical bottom surface annular rubber ring of the wire in a clamping manner;

alternatively, the first and second electrodes may be,

the inner conical surface clamping shoulder of the wire protecting pipe is connected with the annular rubber ring on the outer conical bottom surface of the wire in a clamping manner;

alternatively, the first and second electrodes may be,

the inner spherical surface clamping shoulder of the wire protection tube is connected with the annular rubber ring on the bottom surface of the outer ball of the wire in a clamping manner;

alternatively, the first and second electrodes may be,

the anti-backing ring of the wire protecting pipe is connected with the side wall of the wire in an embracing way;

soft glue is injected between the anti-backing ring of the wire protective tube and the wire;

alternatively, the first and second electrodes may be,

the anti-withdrawal pawl of the wire protecting tube is meshed with the side wall of the wire;

soft glue is injected between the anti-retreat pawl of the thread protecting tube and the thread;

alternatively, the first and second electrodes may be,

the tail end of the wire protecting pipe is fixedly connected with the outer extrusion holding annular ring of the wire through a screw;

a lubricant is injected through the middle part of the threading hole of the thread protecting tube;

the lubricant is vaseline or talcum powder or silicone oil or engine oil or butter;

the sealing rubber ring of the thread is arranged at the head part of the threading hole of the thread protecting pipe and is connected with the threading hole in a sealing way by using glue;

the rear part of the tube head clamping flange of the wire protecting tube is clamped in a tube head clamping notch which is positioned at the wire outlet in the electrical appliance shell;

the wire protecting tube is fixedly connected with the electrical appliance shell through a screw;

and/or the presence of a gas in the gas,

the tube head fixing lug of the wire protecting tube is fixedly connected with the electrical appliance shell through a gasket and a screw;

alternatively, the first and second electrodes may be,

the electrical appliance shell is positioned at the outlet and extends outwards along the axis to form an extrusion cylinder;

the inner side wall of the extrusion container is provided with threads;

the wire protective tube is fixedly connected with the electric appliance shell in an extruding way through an extruding washer and a perforated extruding screw.

Compared with the prior art, the utility model has the following beneficial effects.

1. According to the technical scheme, the electric wire is in protective connection with the electric appliance shell through the wire protecting tube, the wire protecting tube is in the structure of the wire protecting tube as described above, and the end structure of the electric wire is in the technical means of the wire end structure as described above, so that the breakage preventing structure of the electric appliance lead-out electric wire can obviously reduce the breakage probability of the lead-out wire, and creates favorable conditions for smooth construction of customers.

2. In the technical scheme, the end part of the thread penetrates through the thread hole of the thread protection pipe; the neck-contracting hole of the wire protecting tube is fixedly connected with the side wall of the wire in an embracing way; or the plane clamping shoulder of the wire protecting tube is connected with the flat bottom annular rubber ring of the wire in a clamping manner; or the plane clamping shoulder of the wire protecting pipe is clamped and connected with the inner extrusion clasping annular ring of the wire; or the outer conical surface clamping shoulder of the wire protecting pipe is connected with the inner conical bottom surface annular rubber ring of the wire in a clamping manner; or the outer spherical surface clamping shoulder of the wire protecting tube is connected with the inner spherical bottom surface annular rubber ring of the wire in a clamping manner; or the inner conical surface clamping shoulder of the wire protecting pipe is connected with the annular rubber ring on the outer conical bottom surface of the wire in a clamping manner; or the inner spherical surface clamping shoulder of the wire protecting tube is connected with the outer spherical bottom surface annular rubber ring of the wire in a clamping manner; or the anti-backing ring of the wire protecting pipe is connected with the side wall of the wire in an embracing way; or the anti-withdrawal pawl of the thread protecting tube is meshed with the side wall of the thread; or the tail end of the wire protecting tube and the outer extrusion holding annular ring of the wire are fixedly connected through the screw, so that various wire end structures can be manufactured according to the requirements and actual conditions of different customers.

3. In the technical scheme, the lubricating agent is injected into the middle of the threading hole of the thread protecting pipe; the lubricant is vaseline or talcum powder or silicone oil or engine oil or butter; the sealing rubber ring of the wire is arranged at the head of the threading hole of the wire protecting pipe and is connected in a sealing way by using glue, so that the wire protecting pipe is beneficial to lubricating the wire in the wire protecting pipe.

4. In the technical scheme, the rear part of the tube head clamping flange of the wire protection tube is clamped in the tube head clamping notch positioned at the wire outlet in the electrical appliance shell; the wire protecting tube is fixedly connected with the electrical appliance shell through a screw; and/or the tube head fixing lug of the wire protecting tube is fixedly connected with the electrical appliance shell through a gasket and a screw; or the electrical appliance shell is positioned at the outlet in the circumferential direction and extends outwards along the axis to form a squeezing cylinder; the inner side wall of the extrusion container is provided with threads; the wire protective tube is fixedly connected with the electrical appliance shell in an extruding way through the extruding washer and the perforating extruding screw, so that the wire protective tube can be prevented from slipping off from the electrical appliance shell.

In terms of the installation method, in order to solve the fourth technical problem, the utility model provides a prevent disconnected structure installation method of electrical apparatus extraction electric wire penetrates the tip of line from the threading hole tail end of line pillar and wears out from the head end of this threading hole, is located the fixed knot structure and/or the fixed part behind the easy department of buckling and is connected with the line in order to prevent the line to move backward through the line pillar.

Reaming the threading hole of the thread protection pipe by using a reaming rod before threading the end part of the thread from the tail end of the threading hole of the thread protection pipe;

removing the insulating protective outer skin at the end part of the wire after the end part of the wire penetrates out of the head end of the threading hole of the wire protective tube;

punching at least one knot on a tensile wire in the wires at the end of the insulating protective sheath;

the annular rubber ring is sleeved on the side wall of the end part of the insulating protective outer skin of the wire and is fixedly connected with the side wall by soft glue;

winding the core wire exposed after the insulating protective sheath of the wire is removed on a circular rod in a solenoid mode;

pulling the thread backwards to send the core thread in the form of a solenoid into the middle of the thread hole of the thread protecting tube through the circular rod until the thread is not pulled;

a blunt injector is inserted into the space between the anti-backing ring and the side wall of the thread or the space between the anti-backing pawl and the side wall of the thread from the tail end of the thread protecting tube;

a fixing part is arranged at the rear part of the wire protecting pipe;

the rear part of the online protective pipe is sleeved with a fixed component outer sleeve;

injecting lubricant into the threading hole by using a blunt injector;

sleeving a sealing rubber ring on the head of the core wire and plugging the sealing rubber ring into the head of the threading hole of the thread protection tube;

the sealing rubber ring is hermetically connected with the core wire and the wire protective tube through soft glue;

clamping the rear part of the pipe head clamping flange of the wire protecting pipe in a pipe head clamping notch positioned at the wire outlet in the electric appliance shell;

and/or the presence of a gas in the gas,

fixedly connecting a tube head fixing lug of the wire protecting tube with an electric appliance shell through a gasket and a screw;

alternatively, the first and second electrodes may be,

1. The technical scheme adopts the technical means that the fixing structure and/or the fixing part which are positioned at the position where the wire protective pipe is easy to bend are/is connected with the wire to prevent the wire from moving backwards, so the installation method can obviously reduce the breakage probability of the lead-out wire and create favorable conditions for smooth construction of customers.

2. According to the technical scheme, the technical means that the threading hole of the thread protection pipe is reamed by the reaming rod before the end part of the thread is penetrated from the tail end of the threading hole of the thread protection pipe is adopted, so that the thread is easily penetrated into the thread protection pipe, and after the thread is penetrated into the thread protection pipe, the thread protection pipe can generate natural cohesion assisting force for the end part of the thread.

3. According to the technical scheme, the technical means of removing the insulating protective sheath at the end part of the wire after the end part of the wire penetrates out of the head end of the threading hole of the wire protective tube is adopted, so that the occupied space of the wire in the sheath is favorably reduced, the wire is favorably placed in the sheath in a spiral or corrugated loose mode, a lubricant can be added, and the reduction of the bearing bending angle and the reduction of the friction between wire cores are favorably realized.

Not only is the bending of the electric wire facilitated, but also the reduction of the space for the electric wire to stand is facilitated.

4. According to the technical scheme, the technical means that at least one knot is tied on the tensile wire in the wire at the end of the insulating protective sheath is adopted, so that the wire core can be effectively prevented from being stretched due to gravity.

5. According to the technical scheme, the annular rubber ring is sleeved on the side wall of the end part of the insulating protective outer skin of the wire and fixedly connected by the soft glue, so that the flexibility of the end part of the wire is kept.

6. According to the technical scheme, the technical means that the core wire exposed after the insulating protective sheath is removed is wound on the circular rod in the form of the solenoid is adopted, so that the core wire is easily wound into the solenoid shape, and the solenoid-shaped core wire is favorably returned into the wire protective tube.

7. This technical scheme is owing to adopted and pulled the line backward and sent the heart yearn of solenoid form into the through wires hole middle part of line pillar through circular rod until the line is taken out motionlessly technical means, so, is favorable to fixing the line.

8. In the technical scheme, a blunt injector is adopted to inject the lubricant into the threading hole; sleeving a sealing rubber ring on the head of the core wire and plugging the sealing rubber ring into the head of the threading hole of the thread protection tube; the sealing rubber ring is connected with the core wire and the wire protecting tube in a sealing way by the soft glue, so that the wire in the wire protecting tube can be lubricated, and the lubricating oil in the wire protecting tube can be prevented from flowing out.

9. The technical proposal adopts the technical proposal that the rear part of the tube head clamping flange of the wire protecting tube is clamped in the tube head clamping notch which is positioned at the wire outlet in the electric appliance shell; and/or, the tube head fixing lug of the wire protecting tube is fixedly connected with the electrical appliance shell through a gasket and a screw; or the wire protective tube is fixedly connected with the electrical appliance shell in an extruding way through the extruding washer and the perforating extruding screw, so that the wire protective tube can be prevented from slipping off from the electrical appliance shell.

Drawings

The following describes the wire protective tube structure, the wire end structure, the break-preventing structure of the electrical appliance outgoing wire, and the installation method thereof in further detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic view of a connection structure between a line protection tube, a line end and an electrical appliance in the prior art.

Fig. 2 is a schematic view of a connection structure between the first wire protection tube, the wire end portion, and the electrical appliance according to the embodiment.

Fig. 3 is a schematic structural view of the wire sheath of fig. 2.

Fig. 4 is a schematic view of the end of the line in fig. 2.

Fig. 5 is a schematic front view of a second wire protective tube according to the present embodiment.

Fig. 6 is a rear view schematically illustrating a second wire protective tube according to the present embodiment.

Fig. 7 is a left side view schematically illustrating the second wire protective tube according to the present embodiment.

Fig. 8 is a right-side structural view of a second wire protective tube according to the present embodiment.

Fig. 9 is a schematic top view of the second wire protective tube according to the present embodiment.

Fig. 10 is a schematic bottom view of the second wire protective tube according to this embodiment.

Fig. 11 is a schematic sectional view taken along line a-a of fig. 10.

Fig. 12 is a schematic structural view of a third wire protective tube according to the present embodiment.

Fig. 13 is a schematic structural view of a fourth wire sheath according to the present embodiment (a wave-shaped electric wire is threaded through the wire sheath).

Fig. 14 is a schematic structural view of a fifth wire protective tube according to the present embodiment.

Fig. 15 is a schematic structural view of a sixth wire protective tube according to the present embodiment.

Fig. 16 is a front view schematically illustrating a seventh wire protective tube according to the present embodiment.

Fig. 17 is a left side view schematically illustrating a seventh wire protective tube according to the present embodiment.

Fig. 18 is a schematic structural view of an eighth wire casing according to the present embodiment (a spiral electric wire is threaded through the wire casing).

Fig. 19 is a schematic view of a connection structure between the second wire protective tube, the wire end portion, and the electrical appliance according to the present embodiment.

Fig. 20 is a schematic structural view of a screw tightening type fixing member according to this embodiment.

Fig. 21 is a schematic structural view of the screwless tightening type fixing member according to the present embodiment.

Fig. 22 is a schematic structural view of the binding type fixing member in the present embodiment.

Fig. 23 is a schematic structural view of a compression fixing member in the present embodiment.

Fig. 24 is a schematic structural view of a first squeeze gripping ring according to this embodiment.

Fig. 25 is a schematic view of a second extruded clasping annular ring in the present embodiment.

Fig. 26 is a schematic structural view of the bottom surface of the third extrusion clasping annular ring extrusion sleeve in the embodiment.

The reference numerals are explained below.

1-wire protecting the pipe;

1-threading hole;

1-2 to a pipe head fixing lug;

1-3. clamping a flange on the pipe head;

1-3-1-card slot;

1-3-2 to the first half counter sink;

1-3-3 to a second half counter sink;

1-3-4-fixed holes;

1-4-necking;

1-5-clamping shoulder;

1-6 to prevent backing down the ring;

1-7 to retreat the pawl;

1-8-grooving;

1-8-1 to three vertical plane gaps;

1-8-2-clamping holes;

1-9-fixing the threaded hole;

1-10 to ring-shaped fixing grooves;

1-11-a tightening type fixing part;

1-11-1-guide cylinder;

1-11-2-toothed belt;

1-11-3-tightening the screw;

1-12-binding type fixing parts;

1-13-pressing type fixing parts;

1-13-1-pressing plate;

1-13-2-pressing bolt;

1-14-extruding the gasket;

1-15-punching and extruding the screw;

1-16-fixing the component outer sleeve;

2-line;

2-1-wire fixing part;

2-1-extrusion column;

2-1-2-extrusion sleeve;

2-1-3-extruding the rubber ring;

2-1-4-extruding the screw;

2-2 to seal the rubber ring;

3, using the electrical appliance shell;

3-1-pipe head pressing plate;

3-2-gasket;

3-screw;

3-4. clamping the notch at the pipe head;

3-5 to an extrusion cylinder.

Detailed Description

As shown in fig. 2 to 19, the present embodiment provides a thread protecting tube structure, which includes a thread protecting tube 1, wherein the thread protecting tube 1 is made of a flexible material and has a thread hole 1-1, an axial direction of the thread hole 1-1 is along a length direction of the thread protecting tube 1, and a fixing structure and/or a fixing component for preventing the thread 2 from moving backwards is disposed behind a bending easy part (see a vertex on a triangle in fig. 2) of the thread protecting tube 1.

As shown in fig. 2, the fixation structure is a necked-down fixation structure. Of course, as shown in fig. 11 to 19, the fixing structure may be a shoulder type fixing structure. It is also possible that the fixing structure is an inverted ring type fixing structure, as shown in fig. 12. It is also possible that the fixing structure is a pawl type fixing structure as shown in fig. 14. As shown in fig. 16 to 17, the fixing structure may be a groove-type fixing structure. As shown in fig. 16 to 17, the fixing structure may be an end-face connection type fixing structure. The contact portion of the fixing structure is coated with glue (soft glue is injected between the anti-falling rings 1-6 of the thread protecting tube 1 and the thread 2, soft glue is injected between the anti-falling teeth 1-7 of the thread protecting tube 1 and the thread 2, as shown in fig. 13 and 14).

As shown in fig. 2 to 4, the necking fixing structure is a necking hole 1-4 provided at the rear of the threading hole 1-1;

the neck hole 1-4 is coaxial with the threading hole 1-1;

the inner diameter of the neck hole 1-4 is smaller than the inner diameter of the middle part of the threading hole 1-1;

as a further improvement of the embodiment, the inner diameter of the neck hole 1-4 is seven tenth to nine tenth of the inner diameter of the middle part of the threading hole 1-1.

As a further improvement of the embodiment, the inner diameter of the neck hole 1-4 is four fifths of the inner diameter of the threading hole 1-1.

The inner diameter of the middle part of the threading hole 1-1 is larger than or equal to the diameter of the thread 2.

The inner diameter of the tail part of the threading hole 1-1 is larger than the inner diameter of the neck hole 1-4 and is smaller than or equal to the inner diameter of the middle part of the threading hole 1-1.

The inner diameter of the middle part of the threading hole 1-1 is larger than or equal to the inner diameter of the front part of the threading hole 1-1.

The length of the neck hole 1-4 is one tenth to three tenths of the length of the threading hole 1-1.

The length of the necking hole 1-4 is one fifth of the length of the threading hole 1-1.

As shown in fig. 11 to 19, the shoulder type fixing structure is a catching shoulder 1-5 between the rear and middle portions of the threading hole 1-1.

The hole walls of the middle part and the front part of the threading hole 1-1 are expanded outwards along the radial direction to form an expanded hole.

The inner diameter of the rear part of the threading hole 1-1 corresponds to the diameter of the thread 2.

The inner diameters of the middle part and the front part of the threading hole 1-1 are larger than the inner diameter of the rear part of the threading hole 1-1.

The inner diameters of the middle part and the front part of the threading hole 1-1 are 2 to 5 times of the inner diameter of the rear part of the threading hole 1-1.

The inner diameters of the middle part and the front part of the threading hole 1-1 are 2 times, 2.5 times, 3 times, 3.5 times, 4 times, 4.5 times or 5 times of the inner diameter of the rear part of the threading hole 1-1.

The clamping shoulders 1-5 are plane clamping shoulders, outer conical surface clamping shoulders, outer spherical surface clamping shoulders, inner conical surface clamping shoulders or inner spherical surface clamping shoulders.

The clamping shoulders 1-5 are matched with the clamping shoulders of the line fixing piece 2-1.

As shown in fig. 12 to 13, the inverted-ring-shaped fixing structure is a plurality of anti-retreat inverted rings 1-6 axially distributed at the rear part of the inner wall of the threading hole 1-1.

The front end surfaces of the retreat resisting reverse rings 1-6 are outer conical surfaces or outer spherical surfaces.

The rear end surfaces of the retreat resisting reverse rings 1-6 are inner conical surfaces or inner spherical surfaces.

The inner diameter of the rear part of the threading hole 1-1 is less than or equal to the diameter of the thread 2.

As shown in fig. 14, the inverted tooth type fixing structure is a plurality of anti-retreat inverted teeth 1-7 distributed in a cylindrical surface matrix type along the circumferential direction and the axial direction at the rear part of the inner wall of the threading hole 1-1.

The tooth tips of the retraction resisting inverted teeth 1-7 point to the axis of the threading hole 1-1 and are inclined forwards.

As shown in fig. 16 to 17, the fixing structure is a groove 1-8 formed at the end of the inner wall of the threading hole 1-1 along the axial direction of the threading hole 1-1.

Three vertical plane notches 1-8-1 are respectively arranged on the outer sides of the two walls of the cutting groove 1-8.

The two walls of the groove 1-8 are correspondingly provided with clamping holes 1-8-2 in the three vertical plane notches 1-8-1.

The clamping holes 1-8-2 are provided with clamping bolts.

As shown in fig. 15, the end-face connection type fixing structure is fixing threaded holes 1-9 distributed on the end face of the tail part of the wire protective tube 1.

As shown in fig. 11 to 19, the rear side of the wire protecting tube 1 is circumferentially provided with annular fixing grooves 1 to 10.

As shown in fig. 12, the ring-shaped fixing grooves 1 to 10 correspond to the reverse-stopping rings 1 to 6.

As shown in fig. 14, the ring-shaped fixing grooves 1 to 10 correspond to the reverse blocking teeth 1 to 7.

As shown in fig. 11, there is one of the ring-shaped fixing grooves 1 to 10. Of course, it is also possible that there are two ring-shaped fixing grooves 1 to 10 as shown in fig. 12. There may be three ring-shaped fixing grooves 1 to 10.

Two annular fixing grooves 1-10 are distributed along the axial direction of the line protection pipe 1. Also, in the same manner as above,

three annular fixing grooves 1-10 are distributed along the axial direction of the line protecting pipe 1.

As shown in fig. 20 to 23, the fixing member is provided in the ring-shaped fixing groove 1-10.

As shown in fig. 20 to 21, the fixing member is a tightening type fixing member 1-11. Of course, it is also possible that the fixing members are binding type fixing members 1 to 12 as shown in FIG. 22. It is also possible that the fixing parts are press-type fixing parts 1-13, as shown in fig. 23.

As shown in fig. 20, the tightening type fixing members 1 to 11 are screw tightening type fixing members. Alternatively, as shown in fig. 21, the tightening type fixing members 1 to 11 may be screwless tightening type fixing members.

As shown in fig. 20, the screw tightening type fixing part comprises a guide cylinder 1-11-1, a toothed belt 1-11-2 and a tightening screw 1-11-3.

One end of the toothed belt 1-11-2 is fixedly connected with the outer wall of one end of the guide cylinder 1-11-1.

And the other end of the toothed belt 1-11-2 is inserted into the guide hole from the other end of the guide cylinder 1-11-1 after being bent.

The tightening screw 1-11-3 is placed into the guide hole from one end of the guide cylinder 1-11-1 and is rotatably connected with the guide cylinder 1-11-1.

The tightening screws 1-11-3 are engaged with the teeth on the toothed belt 1-11-2.

As shown in fig. 21, the screwless tightening type fixing part comprises a guide cylinder 1-11-1 and a toothed belt 1-11-2.

The inner side wall of the guide cylinder 1-11-1 is provided with cylinder inner inverted teeth.

The inverted teeth in the guide cylinder point to one end of the guide cylinder 1-11-1 obliquely.

The teeth of the toothed belt 1-11-2 are face-chamfered teeth.

The inverted teeth with the surfaces are obliquely directed to one end of the toothed belt 1-11-2.

The inner pawl of the cylinder is meshed with the face pawl.

As shown in FIG. 22, the binding type fixing members 1 to 12 comprise a metal wire or a metal fabric or a non-metal wire or a non-metal fabric.

The metal wire or the metal fabric or the nonmetal wire or the nonmetal fabric is fixed by bonding or welding after binding the rear portion of the wire protecting tube 1.

The metal wire comprises a copper wire or an iron wire or an aluminum wire.

The metal fabric comprises a copper fabric or an iron fabric or an aluminum fabric or a titanium fabric.

The non-metal fabric is polytetrafluoroethylene fabric or rubberized polytetrafluoroethylene fabric or tire thread fabric or cotton cloth or linen or chemical fabric cloth or glass fiber cloth.

The wire is bound to the rear portion of the wire protecting tube 1 and then fixed by adhesion or welding.

The adhesive fixation is adhesive fixation by glue.

The welding fixation is realized by soldering, brazing, aluminum welding or butt welding.

And bonding with glue after welding.

As shown in fig. 18, the wire casing 1 is provided with fixing member covers 1 to 16. Thus, the fixing component can be prevented from being scratched by other objects.

The fixing member housings 1 to 16 are heat shrinkable fixing member housings or elastic fixing member housings.

The elastic fixing member casing is made of the flexible material.

The wire is bound to the wire protecting tube 1 before a layer of fabric or a hard substance is bound to the wire binding portion.

One layer of the fabric is polytetrafluoroethylene fabric or rubberized polytetrafluoroethylene fabric or tire cord fabric or cotton cloth or linen or chemical fabric or glass fiber cloth.

The harder material is a plastic belt, or leather or curled metal skin, such as copper skin, iron sheet and aluminum skin.

As shown in fig. 23, the press type fixing member 1-13 includes two press plates 1-13-1 and two press bolts 1-13-2.

The two compression plates 1-13-1 are in an omega shape.

And two ends of the pressing plate 1-13-1 are provided with pressing holes.

The two pressing plates 1-13-1 press the rear part of the wire protective pipe 1 and are connected in a pressing mode through two pressing bolts 1-13-2.

As shown in fig. 15, the outer diameter of the rear end of the wire sheath 1 is equal to the outer diameter of the rear portion of the wire sheath 1.

Of course, as shown in fig. 12, the outer diameter of the rear end of the wire protective tube 1 may be smaller than the outer diameter of the rear portion of the wire protective tube 1.

The tail end of the line protection tube 1 is in transitional connection with the rear part of the line protection tube 1 through a conical surface.

As shown in fig. 11 to 19, the head end of the line protecting tube 1 is provided with a fixing structure connected with the electrical equipment housing 3.

The fixing structure is a pipe head clamping flange 1-3 formed by radially and outwardly expanding the side surface of the head end of the wire protection pipe 1.

As shown in fig. 5 to 11, the shape of the tube head clamping flange 1-3 is matched with the shape surrounded by the inner wall of the electrical appliance housing 3 at the outlet.

The side surface of the clamping flange 1-3 is provided with a clamping groove 1-3-1.

The clamping grooves 1-3-1 are arranged on two opposite side surfaces of the clamping flanges 1-3.

The two opposite side surfaces are respectively provided with two clamping grooves 1-3-1.

The two clamping grooves 1-3-1 on the two opposite side surfaces are symmetrically arranged relative to the combined flange 1-3.

One side of the clamping flange 1-3 is provided with a second half counter bore 1-3-3 and a fixing hole 1-3-4.

The other side of the clamping flange 1-3 is provided with a first half counter sink 1-3-2.

As shown in fig. 19, the cartridge engagement flange 1-3 is cylindrical in shape.

The tube head clamping flange 1-3 is provided with a pressing washer 1-14 and a perforation pressing screw 1-15.

As shown in fig. 2, the fixing structure is a tube head fixing lug 1-2 respectively arranged on two sides of the head end of the line protection tube 1.

As shown in fig. 2, 4, 13, 18, 19, the present embodiment provides a wire end structure including a wire 2, the wire 2 having a diameter larger than an inner diameter of a neck hole 1-4 of a wire sheath 1 (see fig. 2). The side surface of the end part of one end of the thread 2 can be provided with a thread fixing part 2-1 (see fig. 4, 13, 18 and 19) for preventing the end part of the thread 2 from moving backwards.

The wire 2 is a metallic wire or a non-metallic wire.

The metal wire is an electric wire.

The wire has at least two strands of core wire.

The core wire is covered with an insulating sheath.

And the stranded core wires and the tensile wires are coated with insulating protective sheaths.

The electric wire is one or more of a rubber skin copper core electric wire, a silica gel skin copper core electric wire, a PVC rubber skin copper core electric wire and an EVA rubber skin copper core electric wire.

The ends of the line 2 are straight or curved.

The curve is a spiral curve or a wave-shaped curve.

The ends of the wires 2 are stripped of the insulating protective sheath.

The tensile wires are knotted at the end parts of the insulating protective sheaths.

As shown in fig. 4, 13 and 18, the wire fixing member 2-1 is an annular ring.

The annular ring is an annular rubber ring.

The annular rubber ring is a flat bottom surface annular rubber ring or an outer cone bottom surface annular rubber ring or an outer ball bottom surface annular rubber ring or an inner cone bottom surface annular rubber ring or an inner ball bottom surface annular rubber ring.

The annular rubber ring is fixedly connected with the side face of the end part of one end of the wire 2 through glue.

The glue is a soft glue.

As shown in fig. 24-26, the annular ring is a squeeze grip annular ring.

The extrusion clasping annular ring comprises an extrusion column 2-1-1, an extrusion sleeve 2-1-2 and an extrusion rubber ring 2-1-3.

The shape of the extrusion column 2-1-1 is a cylinder.

The extrusion column 2-1-1 is provided with an extrusion column threading hole at the position of the axis.

The inner diameter of the thread hole of the extrusion column is larger than the diameter of the thread 2.

The shape of the extrusion sleeve 2-1-2 is a pipe body.

One port of the extrusion sleeve 2-1-2 is contracted inwards along the radial direction to form an extrusion sleeve threading hole.

The inner diameter of the thread hole of the extrusion sleeve is larger than the diameter of the thread 2.

The extrusion rubber ring 2-1-3 is positioned in the extrusion sleeve 2-1-2.

The natural inner diameter of the extruded rubber ring 2-1-3 corresponds to the diameter of the thread 2.

The extrusion clasping annular ring is divided into a threaded column extrusion clasping annular ring and a screw extrusion clasping annular ring.

As shown in fig. 24, the outer side wall of the extrusion column 2-1-1 of the threaded column extrusion clasping annular ring is provided with external threads.

The inner side wall of the threaded column extruding and clasping annular ring is provided with internal threads.

The end part of one end of the wire 2 penetrates through the extrusion sleeve 2-1-2, the extrusion rubber ring 2-1-3 and the extrusion column 2-1-1.

The extrusion sleeve 2-1-2 is connected with the extrusion column 2-1-1 through threads to extrude the extrusion sleeve 2-1-2.

The extrusion sleeve 2-1-2 clasps the wire 2.

As shown in fig. 25, threaded extrusion holes are circumferentially distributed on the end surface of the extrusion sleeve 2-1-2 for extruding and clasping the annular ring by the screws.

And extrusion holes are distributed on the end surface of the extrusion rubber ring 2-1-3 along the circumferential direction.

And extrusion holes are distributed on the end surface of the extrusion column 2-1-1 along the circumferential direction.

The end part of one end of the wire 2 sequentially penetrates through the extrusion sleeve 2-1-2, the extrusion rubber ring 2-1-3 and the extrusion column 2-1-1.

The extrusion sleeve 2-1-2 and the extrusion column 2-1-1 are connected and extrude the extrusion rubber ring 2-1-3 through an extrusion screw 2-1-4.

The extrusion rubber rings 2-1-3 tightly hold the wire 2.

Of course, the end surface of the extrusion sleeve 2-1-2 for extruding and tightly holding the annular ring by the screw is circumferentially provided with extrusion holes.

Threaded extrusion holes are distributed on the end face of the extrusion column 2-1-1 along the circumferential direction.

The extrusion rubber rings 2-1-3 tightly hold the wire 2.

As shown in fig. 24 and 25, the squeeze gripping ring is an inner squeeze gripping ring.

As shown in fig. 25-26, the squeeze gripping ring is an outer squeeze gripping ring.

Fixing holes are distributed on the end face of the extrusion sleeve 2-1-2 of the external extrusion clasping annular ring.

The number of the fixing holes is equal to that of the extrusion threaded holes.

The fixing holes and the extrusion threaded holes are distributed at intervals.

Of course, fixing holes can be distributed on the end face of the extrusion column 2-1-1 of the outer extrusion clasping annular ring.

The fixing holes and the extrusion threaded holes are distributed at intervals.

As shown in fig. 13, the ring-shaped ring is sheathed on the insulating protective sheath of the wire 2.

The thread 2 is provided with a sealing rubber ring 2-2.

The wire 2 is connected with the sealing rubber ring 2-2 in a sealing mode through glue.

As shown in fig. 2, 11, 13, 18, and 19, the present embodiment provides an anti-breaking structure for an electric appliance outgoing wire, including an electric wire and an electric appliance housing 3, where the electric wire and the electric appliance housing 3 are connected in a protected manner through a wire protecting tube 1, the structure of the wire protecting tube 1 is the wire protecting tube structure described above, and the end structure of the electric wire is the wire end structure described above.

The end part of the thread 2 passes through the thread hole 1-1 of the thread protecting tube 1.

As shown in fig. 2, the necking holes 1-4 of the wire protective tube 1 are in embracing fixed connection with the side wall of the wire 2.

As shown in fig. 12, the flat engaging shoulder of the wire sheath 1 may be engaged with the flat bottom annular rubber ring of the wire 2.

As shown in fig. 24 to 25, the flat engaging shoulder of the wire sheath 1 may be engaged with the inner pressed clasping annular ring of the wire 2.

As shown in fig. 14, the outer tapered surface engaging shoulder of the wire protective tube 1 may be engaged with the inner tapered bottom annular rubber ring of the wire 2.

The outer spherical surface engaging shoulder of the wire protective tube 1 may be engaged with the inner spherical bottom surface annular rubber ring of the wire 2.

As shown in fig. 13, the inner tapered surface engaging shoulder of the wire protective tube 1 may be engaged with the outer tapered bottom annular rubber ring of the wire 2.

The inner spherical surface engaging shoulder of the wire protective tube 1 may be engaged with the outer spherical bottom surface annular rubber ring of the wire 2.

Alternatively, as shown in fig. 13, the fall-stopping rings 1 to 6 of the line protection pipe 1 may be connected with the side wall of the line 2 in a clasping manner.

Soft glue is injected between the anti-backing rings 1-6 of the thread protecting tube 1 and the thread 2. In this way, the fixation is more secure.

Alternatively, as shown in fig. 14, the anti-retreat reverse teeth 1 to 7 of the thread protector 1 are engaged with the side wall of the thread 2.

Soft glue is injected between the retreat-resisting inverted teeth 1-7 of the thread protecting tube 1 and the thread 2. In this way, the fixation is more secure.

Alternatively, as shown in fig. 15 and 25 to 26, the tail end of the thread protecting tube 1 and the outer pressing holding annular ring of the thread 2 are fixedly connected by a screw.

As shown in fig. 13 and 18 to 19, a lubricant may be injected through the middle of the threading hole 1-1 of the thread protecting tube 1.

The lubricant is vaseline or talcum powder or silicone oil or engine oil or butter.

The sealing rubber ring 2-2 of the thread 2 is arranged at the head of the threading hole 1-1 of the thread protection tube 1 and is connected in a sealing mode through glue.

As shown in fig. 2, the rear of the tube head clamping flange 1-3 of the wire protecting tube 1 is clamped in the tube head clamping notch 3-4 at the outlet in the electrical appliance housing 3.

The wire protecting tube 1 is fixedly connected with the electrical appliance shell 3 through a screw.

The tube head fixing lug 1-2 of the wire protection tube 1 is fixedly connected with the electrical appliance shell 3 through a gasket 3-2 and a screw 3-3.

As shown in figure 19, the electric appliance shell 3 is positioned at the outlet and extends outwards along the axis to form a squeezing barrel 3-5.

The inner side wall of the extrusion container 3-5 is provided with threads.

The wire protective tube 1 is fixedly connected with the electric appliance shell 3 in an extruding way through extrusion gaskets 1-14 and perforation extrusion screws 1-15.

As shown in fig. 18, the present embodiment provides a method for installing an anti-breaking structure of an electric appliance outgoing electric wire, in which an end of a wire 2 is inserted into a tail end of a threading hole 1-1 of a wire protecting tube 1 and is extended out from a head end of the threading hole 1-1, and a fixing structure and/or a fixing member after the wire protecting tube 1 is located at a flexible place is connected to the wire 2 to prevent the wire 2 from moving backward.

Before the end of the thread 2 is threaded from the tail end of the thread hole 1-1 of the thread protection tube 1, a hole enlarging rod is used for enlarging the thread hole 1-1 of the thread protection tube 1.

After the end part of the thread 2 is threaded out from the head end of the thread through hole 1-1 of the thread protecting tube 1, the insulating protecting outer skin at the end part of the thread 2 is removed.

The tensile wires in the wires 2 are knotted at least one knot at the end of the insulating protective sheath.

The annular rubber ring is sleeved on the side wall of the end part of the insulating protective outer skin of the wire 2 and fixedly connected with the side wall by soft glue.

The core wire exposed after removing the insulating sheath of the wire 2 is wound around a circular rod in the form of a solenoid.

The thread 2 is pulled backwards to send the core thread in the form of a solenoid into the middle of the thread passing hole 1-1 of the thread protecting tube 1 through the circular rod until the thread 2 is not pulled.

And (3) inserting the blunt syringe into the space between the anti-retreat ring 1-6 and the side wall of the thread 2 or injecting soft glue into the space between the anti-retreat pawl 1-7 and the side wall of the thread 2 from the tail end of the thread protecting tube 1.

A fixing member is installed at the rear of the wire protective tube 1.

The rear part of the wire protective tube 1 is sleeved with a fixed component outer sleeve 16. In this way, it can be fixed very firmly.

Lubricant is injected into the threading hole 1-1 by a blunt injector.

The sealing rubber ring 2-2 is sleeved at the head of the core wire and is plugged into the head of the threading hole 1-1 of the thread protection tube 1.

The sealing rubber ring 2-2 is connected with the core wire and the wire protective tube 1 in a sealing way through soft glue.

The rear part of the tube head clamping flange 1-3 of the wire protecting tube 1 is clamped in a tube head clamping notch 3-4 which is positioned at the wire outlet in the electrical appliance shell 3.

As shown in figure 2, a tube head fixing lug 1-2 of the wire protecting tube 1 is fixedly connected with an electric appliance shell 3 through a gasket 3-2 and a screw 3-3.

As shown in FIG. 19, the wire protective tube 1 is fixedly connected with the electric appliance shell 3 through a compression washer 1-14 and a perforation compression screw 1-15 in a compression mode.

Claims

1. A line pillar structure, includes line pillar (1), line pillar (1) is made by flexible material, has through wires hole (1-1), the axial direction of through wires hole (1-1) is along the length direction of line pillar (1), its characterized in that: the thread protecting tube (1) is provided with a fixing structure and/or a fixing part which is arranged behind the flexible part and prevents the thread (2) from moving backwards.

2. The wire casing structure of claim 1, wherein:

the contact part of the fixing structure is coated with glue;

the neck-reducing type fixing structure is a neck-reducing hole (1-4) arranged at the rear part of the threading hole (1-1);

the neck hole (1-4) is coaxial with the threading hole (1-1);

the inner diameter of the neck reducing hole (1-4) is smaller than the inner diameter of the middle part of the threading hole (1-1);

the shoulder type fixing structure is a clamping shoulder (1-5) positioned between the rear part and the middle part of the threading hole (1-1);

the hole walls of the middle part and the front part of the threading hole (1-1) are expanded outwards along the radial direction to form expanded holes;

the inner diameter of the rear part of the threading hole (1-1) corresponds to the diameter of the thread (2);

the inner diameters of the middle part and the front part of the threading hole (1-1) are larger than the inner diameter of the rear part of the threading hole (1-1);

the clamping shoulders (1-5) are plane clamping shoulders or outer conical surface clamping shoulders or outer spherical surface clamping shoulders or inner conical surface clamping shoulders or inner spherical surface clamping shoulders;

the inverted ring type fixing structure is a plurality of anti-withdrawal inverted rings (1-6) which are axially distributed at the rear part of the inner wall of the threading hole (1-1);

the front end surfaces of the anti-retreat rings (1-6) are outer conical surfaces or outer spherical surfaces;

the rear end surfaces of the retreat resisting reverse rings (1-6) are inner conical surfaces or inner spherical surfaces;

the inner diameter of the rear part of the threading hole (1-1) is less than or equal to the diameter of the thread (2);

the inverted tooth type fixing structure is formed by a plurality of anti-retreating inverted teeth (1-7) which are distributed on the rear part of the inner wall of the threading hole (1-1) along the circumferential direction and the axial direction in a matrix manner;

the tooth tips of the retraction resisting inverted teeth (1-7) point to the axis of the threading hole (1-1) and are inclined forwards;

the groove type fixing structure is a groove (1-8) formed in the tail part of the inner wall of the threading hole (1-1) along the axial direction of the threading hole (1-1);

three vertical plane notches (1-8-1) are respectively arranged on the outer sides of the two walls of the cutting groove (1-8);

two walls of the groove (1-8) are correspondingly provided with clamping holes (1-8-2) in the three vertical plane notches (1-8-1);

the clamping holes (1-8-2) are provided with clamping bolts;

the end face connection type fixing structure is a fixing threaded hole (1-9) distributed on the end face of the tail part of the wire protection tube (1);

an annular fixing groove is formed in the side face of the rear part of the wire protecting pipe (1) along the circumferential direction;

the annular fixing grooves (1-10) correspond to the anti-backing rings (1-6); alternatively, the first and second electrodes may be,

the annular fixing grooves (1-10) correspond to the anti-retreat reverse teeth (1-7);

one or two or three annular fixing grooves (1-10) are formed;

two or three annular fixing grooves (1-10) are distributed along the axial direction of the line protection pipe (1);

the fixing component is arranged in the annular fixing groove (1-10);

the fixing parts are tightening fixing parts (1-11) and/or tightening fixing parts (1-12) and/or pressing fixing parts (1-13);

the tightening type fixing parts (1-11) are tightening type fixing parts with screws or tightening type fixing parts without screws;

the screw tightening type fixing part comprises a guide cylinder (1-11-1), a toothed belt (1-11-2) and a tightening screw (1-11-3);

one end of the toothed belt (1-11-2) is fixedly connected with the outer wall of one end of the guide cylinder (1-11-1);

the other end of the toothed belt (1-11-2) is bent and then inserted into the guide hole from the other end of the guide cylinder (1-11-1);

the tightening screw (1-11-3) is placed into the guide hole from one end of the guide cylinder (1-11-1) and is rotationally connected with the guide cylinder (1-11-1);

the tightening screw (1-11-3) is meshed with teeth on the toothed belt (1-11-2);

the screwless tightening type fixing part comprises a guide cylinder (1-11-1) and a toothed belt (1-11-2);

the inner side wall of the guide cylinder (1-11-1) is provided with cylinder internal inverted teeth;

the inverted teeth in the guide cylinder point to one end of the guide cylinder (1-11-1) obliquely;

the teeth of the toothed belt (1-11-2) are inverted teeth with surfaces;

the inverted tooth with the surface obliquely points to one end of the toothed belt (1-11-2);

the inner pawl of the cylinder is meshed with the face pawl;

the binding type fixing parts (1-12) comprise metal wires or metal fabrics or nonmetal wires or nonmetal fabrics;

the metal wire or the metal fabric or the nonmetal wire or the nonmetal fabric is fixed by bonding or welding after binding the rear part of the wire protective tube (1);

the metal wire comprises a copper wire, an iron wire or an aluminum wire;

the metal wire is fixed by bonding or welding after binding the rear part of the wire protective tube (1);

the bonding and fixing are performed by using glue;

bonding with glue after welding;

the wire protective tube (1) is provided with a fixed component jacket (1-16);

the fixing component outer sleeve (1-16) is a heat-shrinkable fixing component outer sleeve or an elastic fixing component outer sleeve;

the elastic fixing component outer sleeve is made of the flexible material;

the metal wire is bound with a layer of fabric or a harder substance at the metal wire binding part before the metal wire is bound with the wire protecting pipe (1);

the compression type fixing part (1-13) comprises two compression plates (1-13-1) and two compression bolts (1-13-2);

the two compression plates (1-13-1) are in omega shapes;

two ends of the compression plate (1-13-1) are provided with compression holes;

the two pressing plates (1-13-1) press the rear part of the wire protective pipe (1) and are connected in a pressing way through two pressing bolts (1-13-2);

the outer diameter of the tail end of the wire protective pipe (1) is equal to the outer diameter of the rear part of the wire protective pipe (1);

alternatively, the first and second electrodes may be,

the outer diameter of the tail end of the wire protective pipe (1) is smaller than the outer diameter of the rear part of the wire protective pipe (1);

the tail end of the wire protecting tube (1) is in transitional connection with the rear part of the wire protecting tube (1) through a conical surface;

the head end of the wire protective tube (1) is provided with a fixed structure connected with the electrical appliance shell (3);

the fixing structure is a pipe head clamping flange (1-3) formed by radially and outwardly expanding the side surface of the head end of the wire protective pipe (1);

the shape of the pipe head clamping flange (1-3) is matched with the shape surrounded by the inner wall of the electric appliance shell (3) at the outlet;

a clamping groove (1-3-1) is arranged on the side surface of the clamping flange (1-3);

the clamping grooves (1-3-1) are arranged on two opposite side surfaces of the clamping flanges (1-3);

the two opposite side surfaces are respectively provided with two clamping grooves (1-3-1);

the two clamping grooves (1-3-1) on the two opposite side surfaces are symmetrically arranged relative to the combined flange (1-3);

one side of the clamping flange (1-3) is provided with a second half counter bore (1-3-3) and a fixing hole (1-3-4);

the other side of the clamping flange (1-3) is provided with a first half counter sink (1-3-2);

alternatively, the first and second electrodes may be,

the tube head clamping flange (1-3) is cylindrical;

the pipe head clamping flange (1-3) is provided with an extrusion gasket (1-14) and a perforation extrusion screw (1-15);

alternatively, the first and second electrodes may be,

the fixing structure is a pipe head fixing lug (1-2) respectively arranged on two sides of the head end of the wire protecting pipe (1);

3. A wire end structure comprising a wire (2), characterized in that: the diameter of the wire (2) is larger than the inner diameter of a neck-reducing hole (1-4) of the wire protecting tube (1), and/or a wire fixing piece (2-1) for preventing the end part of the wire (2) from moving backwards is arranged on the side surface of the end part of one end of the wire (2).

4. The wire end structure of claim 3, wherein:

the wire (2) is a metal wire or a non-metal wire;

the metal wire is an electric wire;

the electric wire has at least two strands of core wires;

the core wire is coated with an insulating sheath;

the ends of the line (2) are straight or curved;

the curve is a spiral curve or a wave-shaped curve;

the end of the wire (2) is stripped of the insulating protective sheath;

the wire fixing piece (2-1) is an annular ring;

the annular ring is an annular rubber ring;

the annular rubber ring is fixedly connected with the side face of the end part of one end of the wire (2) through glue;

the glue is soft glue;

alternatively, the first and second electrodes may be,

the annular ring is an extrusion holding annular ring;

the extrusion clasping annular ring comprises an extrusion column (2-1-1), an extrusion sleeve (2-1-2) and an extrusion rubber ring (2-1-3);

the shape of the extrusion column (2-1-1) is a cylinder;

the extrusion column (2-1-1) is provided with an extrusion column threading hole at the position of the axis;

the inner diameter of the thread hole of the extrusion column is larger than the diameter of the thread (2);

the extrusion sleeve (2-1-2) is in a pipe body shape;

one port of the extrusion sleeve (2-1-2) is radially and inwardly contracted to form an extrusion sleeve threading hole;

the inner diameter of the thread hole of the extrusion sleeve is larger than the diameter of the thread (2);

the extrusion rubber ring (2-1-3) is positioned in the extrusion sleeve (2-1-2);

the inner diameter of the extrusion rubber ring (2-1-3) in a natural state corresponds to the diameter of the wire (2);

the outer side wall of the extrusion column (2-1-1) of the threaded column extrusion clasping annular ring is provided with an external thread;

the end part of one end of the wire (2) penetrates through the extrusion sleeve (2-1-2), the extrusion rubber ring (2-1-3) and the extrusion column (2-1-1);

the extrusion sleeve (2-1-2) is connected with the extrusion column (2-1-1) through threads to extrude the extrusion sleeve (2-1-2);

the extrusion sleeve (2-1-2) clasps the wire (2);

the screw extrudes the end surface of the extrusion sleeve (2-1-2) tightly embracing the annular ring, and threaded extrusion holes are distributed along the circumferential direction;

extrusion holes are distributed on the end surface of the extrusion rubber ring (2-1-3) along the circumferential direction;

extrusion holes are distributed on the end surface of the extrusion column (2-1-1) along the circumferential direction;

the end part of one end of the wire (2) sequentially penetrates through the extrusion sleeve (2-1-2), the extrusion rubber ring (2-1-3) and the extrusion column (2-1-1);

the extrusion sleeve (2-1-2) and the extrusion column (2-1-1) are connected through an extrusion screw (2-1-4) to extrude the extrusion rubber ring (2-1-3);

the extrusion rubber ring (2-1-3) tightly holds the wire (2);

alternatively, the first and second electrodes may be,

the end surface of the extrusion sleeve (2-1-2) of the screw extrusion clasping annular ring is circumferentially provided with extrusion holes;

the end surface of the extrusion column (2-1-1) is circumferentially provided with threaded extrusion holes;

the extrusion rubber ring (2-1-3) tightly holds the wire (2);

fixing holes are distributed on the end surface of the extrusion sleeve (2-1-2) of the external extrusion clasping annular ring;

the fixing holes and the extrusion threaded holes are distributed at intervals;

alternatively, the first and second electrodes may be,

fixing holes are distributed on the end surface of the extrusion column (2-1-1) of the external extrusion clasping annular ring;

the fixing holes and the extrusion threaded holes are distributed at intervals;

the annular ring is sheathed on an insulating protective sheath of the wire (2);

the wire (2) is provided with a sealing rubber ring (2-2);

the wire (2) is connected with the sealing rubber ring (2-2) in a sealing mode through glue.

5. The utility model provides a prevent disconnected structure with leading out electric wire with electrical apparatus, includes the electric wire and uses electrical apparatus casing (3), the electric wire with through line pillar (1) protection connection, its characterized in that between electrical apparatus casing (3): the structure of the wire sheath (1) is the wire sheath structure according to claim 1 or 2, and the end structure of the electric wire is the wire end structure according to claim 3 or 4.

6. The disconnection preventing structure for the outlet wire of the electrical appliance according to claim 5, wherein:

the end part of the thread (2) passes through a threading hole (1-1) of the thread protecting pipe (1);

a necking hole (1-4) of the wire protecting tube (1) is fixedly connected with the side wall of the wire (2) in an embracing way;

alternatively, the first and second electrodes may be,

the plane clamping shoulder of the wire protective tube (1) is clamped and connected with the flat bottom annular rubber ring of the wire (2);

alternatively, the first and second electrodes may be,

the plane clamping shoulder of the wire protecting pipe (1) is clamped and connected with the inner extrusion clasping annular ring of the wire (2);

alternatively, the first and second electrodes may be,

the outer conical surface clamping shoulder of the wire protective pipe (1) is connected with the inner conical bottom surface annular rubber ring of the wire (2) in a clamping manner;

alternatively, the first and second electrodes may be,

the outer spherical surface clamping shoulder of the wire protective tube (1) is clamped and connected with the annular rubber ring on the bottom surface of the inner ball of the wire (2);

alternatively, the first and second electrodes may be,

the inner conical surface clamping shoulder of the wire protective pipe (1) is connected with the annular rubber ring on the outer conical bottom surface of the wire (2) in a clamping manner;

alternatively, the first and second electrodes may be,

the inner spherical surface clamping shoulder of the wire protective tube (1) is clamped and connected with the outer spherical bottom surface annular rubber ring of the wire (2);

alternatively, the first and second electrodes may be,

the anti-backing ring (1-6) of the wire protecting tube (1) is connected with the side wall of the wire (2) in an encircling manner;

soft glue is injected between the anti-backing ring (1-6) of the wire protective tube (1) and the wire (2);

alternatively, the first and second electrodes may be,

the anti-retreat reverse teeth (1-7) of the wire protecting tube (1) are meshed and connected with the side wall of the wire (2);

soft glue is injected between the anti-retreat reverse teeth (1-7) of the thread protecting tube (1) and the thread (2);

alternatively, the first and second electrodes may be,

the tail end of the wire protecting pipe (1) is fixedly connected with the outer extruding and holding annular ring of the wire (2) through a screw;

a lubricant is injected into the middle of a threading hole (1-1) of the thread protecting tube (1);

the sealing rubber ring (2-2) of the thread (2) is arranged at the head of the threading hole (1-1) of the thread protecting tube (1) and is connected with the threading hole in a sealing way by glue;

the rear part of a tube head clamping flange (1-3) of the wire protecting tube (1) is clamped in a tube head clamping notch (3-4) which is positioned at the wire outlet in the electrical appliance shell (3);

the wire protecting tube (1) is fixedly connected with the electrical appliance shell (3) through a screw;

and/or the presence of a gas in the gas,

the tube head fixing lug (1-2) of the wire protecting tube (1) is fixedly connected with the electrical appliance shell (3) through a gasket (3-2) and a screw (3-3);

alternatively, the first and second electrodes may be,

the electrical appliance shell (3) is positioned at the outlet and extends outwards along the axis to form an extrusion cylinder (3-5);

the inner side wall of the extrusion container (3-5) is provided with threads;

the wire protection tube (1) is fixedly connected with the electric appliance shell (3) in an extruding way through an extruding washer (1-14) and a perforation extruding screw (1-15).