CN217334526U

CN217334526U - Electrode wire and quick grafting mechanism

Info

Publication number: CN217334526U
Application number: CN202220104174.2U
Authority: CN
Inventors: 申思宪
Original assignee: Henan Baichangyuan Medical Technology Co ltd
Current assignee: Henan Baichangyuan Medical Technology Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-08-30
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses an electrode line and quick grafting mechanism, at least, include the conjuncted structure of two monofilament bodies, every monofilament body includes absorption end gum cover in proper order, absorption end conductive metal, the electrode line gum cover, the electrode line metal wire, stiff end gum cover and stiff end conductive metal, absorption end conductive metal is wrapped up in absorption end gum cover by sealed, the electrode line metal wire is arranged in the inner chamber of electrode line gum cover, stiff end conductive metal is wrapped up in the stiff end gum cover by sealed, the one end fixed connection absorption end conductive metal of electrode line metal wire, other end fixed connection stiff end conductive metal, absorption end conductive metal and stiff end conductive metal and the axial of electrode line gum cover have the lumen of bleeding that runs through. The utility model discloses improve and optimize the electrode line, improve the security and the reliability of electrode line. The quick socket can improve the reliability of sealing butt joint and electric connection, and is very simple and convenient to install and remove.

Description

Electrode wire and quick grafting mechanism

Technical Field

The utility model belongs to the technical field of medical electrotherapy equipment, concretely relates to an electrode line and quick grafting mechanism for electrotherapy instrument.

Background

The medium frequency, interference electricity, roaming electricity and other electric therapy equipment output modulated alternating current to act on relevant parts of a human body through electrode wires and connected electrode plates so as to achieve the effect of rehabilitation therapy. The electrode wire is a key part of electrotherapy equipment for carrying out intermediate frequency, interference electricity and roaming electricity rehabilitation treatment, and the reliability and convenience of the electrode wire directly influence the electrotherapy implementation of doctors and the treatment effect of patients.

Many present electrode wires are in long-time use, appear electrode wire rubber ageing, conductive metal corrosion easily, bayonet joint contact failure scheduling problem, have brought the potential safety hazard for electrotherapy rehabilitation, in order to eliminate the above-mentioned problem that the electrode wire exists, it is necessary to improve and optimize the electrode wire to improve the security and the reliability of electrode wire.

SUMMERY OF THE UTILITY MODEL

To present many electrode lines appear easily that electrode line rubber is ageing, conductive metal corrosion and bayonet joint contact failure scheduling problem, the utility model provides an electrode line and quick grafting mechanism improves and optimizes the electrode line to improve the security and the reliability of electrode line.

The utility model provides a scheme of its technical problem is: an electrode wire is adopted, the electrode wire at least comprises a conjoined structure formed by connecting two monofilament bodies in parallel (the number of the monofilament bodies can be different numbers such as 2, 3, … …, 8 and the like), each monofilament body sequentially comprises an adsorption end rubber sleeve, adsorption end conductive metal, an electrode wire rubber sleeve, an electrode wire metal wire, a fixed end rubber sleeve and fixed end conductive metal from an adsorption end to a fixed end, the adsorption end conductive metal is hermetically wrapped in the adsorption end rubber sleeve, the electrode wire metal wire is positioned in the inner cavity of the electrode wire rubber sleeve, the fixed end conductive metal is hermetically wrapped in the fixed end rubber sleeve, one end of the electrode wire metal wire is fixedly connected with the adsorption end conductive metal, the other end of the electrode wire metal wire is fixedly connected with the fixed end conductive metal, the axial of absorption end conductive metal and stiff end conductive metal and electrode line gum cover have the lumen of bleeding that runs through.

One side of the conductive metal at the adsorption end is of a multi-petal cylindrical structure, a cylinder at the other side is provided with an inverted hook structure, the inverted hook structure enables the electrode wire rubber sleeve to closely match the conductive metal at the adsorption end and the adsorption end, and the multi-petal cylindrical structure of the conductive metal at the adsorption end is used for closely inserting and matching the conductive structure.

The adsorption end conductive metal comprises an outer pipe section and an inner pipe section, a convex ring is arranged between the outer pipe section and the inner pipe section, an annular groove is formed in the inner wall of the adsorption end rubber sleeve, the convex ring and the annular groove are matched with each other, and therefore the adsorption end conductive metal is wrapped by the adsorption end rubber sleeve and cannot be separated from the adsorption end conductive metal.

The pipe wall of the port of the outer pipe section is provided with at least one pair of notches along the radial direction, so that the pipe orifice has elastic deformation capacity, and when the pipe orifice is sleeved with the metal pipe end of the sucking disc, the elastically deformed outer pipe section can have clamping force on the metal pipe end so as to keep good electric contact performance; the outer wall of the inner pipe section and the inner wall of the adsorption end rubber sleeve are provided with annular areas, the end part of the electrode wire rubber sleeve is inserted into the annular areas, and the outer wall of the inner pipe section is provided with a plurality of layers of annular inverted teeth for compressing the end part of the electrode wire rubber sleeve to prevent the end part from falling off.

The fixed end conductive metal comprises an outer pipe section and an inner pipe section, and a convex ring is arranged between the outer pipe section and the inner pipe section. The inner wall of the fixed end rubber sleeve is provided with an annular groove, and the convex ring is matched and sleeved with the annular groove, so that the fixed end conductive metal is wrapped by the fixed end rubber sleeve and cannot be separated.

The pipe wall of the port of the outer pipe section is provided with at least one pair of notches along the radial direction, so that the pipe orifice has elastic deformation capacity, and when the pipe orifice is sleeved with the metal pipe end of the socket rubber sleeve conductive core, the elastically deformed outer pipe section can have clamping force on the socket rubber sleeve conductive core so as to keep good electric contact performance; the outer wall of the inner pipe section and the inner wall of the fixed end rubber sleeve are provided with annular areas, the end part of the electrode wire rubber sleeve is inserted into the annular areas, and the outer wall of the inner pipe section is provided with a plurality of layers of annular inverted teeth for compressing the end part of the electrode wire rubber sleeve to prevent the end part from falling off.

The cylindrical barb structure of the conductive metal of the adsorption end is provided with a plane, and the metal wire of the electrode wire metal wire is welded on the cylindrical plane of the conductive metal of the adsorption end.

A quick plug-in mechanism for electrode wires is composed of a fixed end plug, a fixed end socket, a conductive metal sleeve fixed in the axial cavity of said fixed end socket,

there is annular fit clearance at stiff end conductive metal's tip and the tip of stiff end gum cover, and there is annular arch on the inner wall that the stiff end gum cover is located annular fit clearance section, stiff end socket gum cover can match in this annular clearance of cominging in and going out, be equipped with the annular groove on the outer pipe wall of stiff end socket gum cover, this annular groove can match the suit in the annular arch outside.

At least one pair of notches is radially arranged on the pipe wall of the port of the fixed end socket conductive metal, so that the pipe orifice has elastic deformation capacity.

The width of the annular protrusion is a, and the width of the annular groove is b, so that a is less than or equal to b, and the design is usually that a is less than b.

The other side of the fixed end socket rubber sleeve is of a threaded structure, and the fixed end socket rubber sleeve is fixed on the fixed base through the threaded structure and the nut.

Two pairs of symmetrical finger grooves are arranged on the outer wall of the adsorption end rubber sleeve and are of an approximate trapezoid structure, the finger grooves are wide in front and narrow in back, the finger grooves are narrow in front and wide in back, and the depth of the wide area groove is larger than that of the narrow area groove.

The utility model has the advantages that: the electrode wire is improved and optimized, and the safety and the reliability of the electrode wire are improved. The quick socket can improve the reliability of sealing butt joint and electric connection, and is very simple and convenient to install and remove.

The electrode line contains two and connects and the connecting wire is constituteed, and fixing socket is connected to one end, and electrode sucking disc (electrode slice) is connected to one end, and the connecting wire comprises electrode line gum cover and electrode line metal wire, and the electrode line gum cover wraps up the electrode line metal wire, and every electrode line gum cover only wraps up an electrode line metal wire. At least one pair of notches are radially arranged on the pipe wall of the port of the outer pipe section to form a multi-disc cylindrical structure, so that the pipe orifice has elastic deformation capacity, and when the pipe orifice is sleeved with the metal pipe end of the sucking disc, the elastically deformed outer pipe section can have clamping force on the metal pipe end to keep good electric contact performance. The outer wall of the inner pipe section is distributed with a plurality of layers of annular inverted teeth for compressing the end part of the electrode wire rubber sleeve to prevent the end part from falling off.

The conductive metal of the adsorption end is connected with the metal wire of the electrode wire in a welding mode, and the adsorption end and the joint are assembled after welding to form an integral structure.

The stiff end conductive metal cover is admittedly in stiff end gum cover axle center lumen, has annular fit clearance at stiff end conductive metal's tip and the tip of stiff end gum cover, has annular arch on the inner wall that lies in annular fit clearance section at stiff end gum cover 5, and this arch makes things convenient for the connection outside to connect to make each part can the cooperation of pegging graft fast, can improve the reliability that sealed butt joint and electricity are connected, install and demolish all very simple and conveniently.

Drawings

Fig. 1 is an appearance structure diagram of the electrode wire of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a left side view of fig. 1.

Fig. 4 is a schematic view of the cross-sectional structure a-a in fig. 3.

Fig. 5 is a perspective view of fig. 1.

Fig. 6 is a structural view of the electrode wire quick plugging mechanism.

Fig. 7 is a cross-sectional view of the electrode line adsorption end.

Fig. 8 is a sectional view of the fixed end of the electrode wire.

Fig. 9 is a schematic view of the assembly relationship of the electrode wire quick plugging mechanism.

Fig. 10 is a schematic view showing the assembly relationship between the electrode wire suction end and the suction cup.

Reference numbers in the figures: the adsorption terminal comprises an adsorption terminal rubber sleeve 1, an adsorption terminal conductive metal 2, an electrode wire rubber sleeve 3, an electrode wire metal wire 4, a fixed terminal rubber sleeve 5, a fixed terminal conductive metal 6, a fixed terminal socket rubber sleeve 7, a socket rubber sleeve conductive core 8, an annular bulge 9, an annular groove 10, a sucker 11, a metal pipe end 12, an annular groove 13, a finger groove 14, a convex ring 15, a fit clearance 16, an outer pipe section I21, an inner pipe section I22, a convex ring 23, an outer pipe section II 61, an inner pipe section II 62 and a convex ring 63.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1: an electrode wire as shown in fig. 1 is a connecting wire of an electrode sucker and a fixed socket, one end of the connecting wire is connected with the electrode sucker (electrode plate), the other end of the connecting wire is connected with the fixed socket, the connecting wire is designed aiming at the technical problems existing in the long-time use process of a plurality of existing electrode wires, and the motor wire is mainly of a two-connected body structure formed by connecting two single wires in parallel. The side and end profiles are shown in fig. 2 and 3. In addition, the design can also be four-way, six-way, eight-way, and the like.

Fig. 4 shows the internal structure of the motor wire, and it can be seen that each monofilament body sequentially comprises an adsorption end rubber sleeve 1, an adsorption end conductive metal 2, an electrode wire rubber sleeve 3, an electrode wire metal wire 4, a fixed end rubber sleeve 5 and a fixed end conductive metal 6 from one end (adsorption end) to the other end (fixed end).

The adsorption end conductive metal 2 comprises an outer pipe section 21 and an inner pipe section 22, and a convex ring 23 is arranged between the outer pipe section and the inner pipe section. The inner wall of the adsorption end rubber sleeve 1 is provided with an annular groove 13, and the convex ring 23 is matched with the annular groove 13 in a sleeving manner, so that the adsorption end conductive metal 2 is wrapped by the adsorption end rubber sleeve 1 and cannot be separated.

At least one pair of notches are arranged on the pipe wall of the port of the outer pipe section 21 along the radial direction, so that the pipe orifice has elastic deformation capacity, and when the pipe orifice is sleeved with the metal pipe end 12 of the sucking disc 11, the elastically deformed outer pipe section 21 can have clamping force on the metal pipe end 12 to keep good electric contact performance.

The outer wall of the inner pipe section 22 and the inner wall of the adsorption end rubber sleeve 1 are provided with annular areas, and the end part of the electrode wire rubber sleeve 3 is inserted into the annular areas. The outer wall of the inner pipe section 22 is distributed with a plurality of layers of annular inverted teeth for compressing the end part of the electrode wire rubber sleeve 3 to prevent the electrode wire rubber sleeve from falling off.

As can be seen in fig. 4, the electrode wire plastic sheath 3 contains an inner cavity for air extraction, and the electrode wire metal wire 4 is located in the inner cavity of the electrode wire plastic sheath 3. One end of the electrode wire metal wire 4 is fixedly connected with the adsorption end conductive metal 2, the other end is fixedly connected with the fixed end conductive metal 6,

the fixed end conductive metal 6 is hermetically wrapped in the fixed end rubber sleeve 5, the fixed end conductive metal 6 comprises an outer pipe section 61 and an inner pipe section 62, and a convex ring 63 is arranged between the outer pipe section and the inner pipe section. The inner wall of the fixed end rubber sleeve 5 is provided with an annular groove 53, and the convex ring 63 is matched and sleeved with the annular groove 53, so that the fixed end conductive metal 6 is wrapped by the fixed end rubber sleeve 5 and cannot be separated.

At least one pair of notches is radially arranged on the pipe wall of the port of the outer pipe section 61, so that the pipe orifice has elastic deformation capacity, and when the pipe orifice is sleeved with the metal pipe end of the socket rubber sleeve conductive core 8, the elastically deformed outer pipe section 61 can have clamping force on the socket rubber sleeve conductive core 8, so that good electric contact performance is kept.

The outer wall of the inner pipe section 62 and the inner wall of the fixed end rubber sleeve 5 are provided with annular areas, and the end parts of the electrode wire rubber sleeve 3 are inserted into the annular areas. The outer wall of the inner pipe section 62 is distributed with a plurality of layers of annular inverted teeth for compressing the end part of the electrode wire rubber sleeve 3 to prevent the electrode wire rubber sleeve from falling off.

As can be seen from fig. 4, the suction lumens are axially disposed at the adsorption end conductive metal 2, the fixed end conductive metal 6 and the electrode wire rubber sleeve 3.

As shown in fig. 5, two pairs of symmetrical finger grooves 14 are formed on the outer wall of the adsorption end rubber sleeve 1, and each finger groove is of an approximately trapezoidal structure. The pair of finger grooves are grooves with wide front parts and narrow back parts, the pair of finger grooves are grooves with narrow front parts and wide back parts, and the recess depth of the grooves in the wide area is larger than that of the grooves in the narrow area. The outer side of the fixed end rubber sleeve 5 is provided with a convex ring 15 and anti-skid lines.

Example 2: an electrode wire fast plugging mechanism based on embodiment 1, as shown in fig. 6, the device mainly includes a fixed end plug 5, a fixed end socket conductive metal 6 and a fixed end socket rubber sleeve 7.

Specifically, as can be seen from the assembly relationship in fig. 9, the fixed end conductive metal 6 is fixed in the axial tube cavity of the fixed end rubber sleeve 5, and after the fixed end conductive metal 6 and the fixed end rubber sleeve 5 are sleeved, an annular fit gap 16 exists between the end of the fixed end conductive metal 6 and the end of the fixed end rubber sleeve 5.

Meanwhile, the fixed end rubber sleeve 5 is provided with an annular bulge 9 on the inner wall of the annular fit clearance section, an annular groove 10 is formed in the outer pipe wall of the fixed end socket rubber sleeve 7, the fixed end socket rubber sleeve 7 can be matched with and come out of the annular clearance, and the annular groove 10 can be matched and sleeved outside the annular bulge 9 after being inserted.

At least one pair of notches are radially arranged on the pipe wall of the port of the fixed end socket conductive metal 6, so that the pipe orifice has elastic deformation capacity.

As can be seen from fig. 9, the width of the annular protrusion 9 is a, the width of the annular groove 10 is b, and a is smaller than or equal to b, and is usually designed to be smaller than b, so that the fixed end socket rubber sleeve 7 can have a small sliding adjustment function (adjustment range is b-a) in the axial direction after being inserted into the fixed end rubber sleeve 5.

Each part of the quick plug socket can be quickly plugged and matched, the reliability of sealing butt joint and electric connection can be improved, and the quick plug socket is very simple and convenient to install and remove.

Example 3: another electrode wire and fast plug-in mechanism on the basis of the above embodiment, the electrode wire structure has 2 groups of adsorption end gum cover 1, adsorption end conductive metal 2, electrode wire gum cover 3, electrode wire metal wire 4, fixed end gum cover 5 and fixed end conductive metal 6 respectively, the adsorption end gum cover 1 is made of plastic material, the adsorption end gum cover 1 is internally provided with a groove, the adsorption end conductive metal 2 is a metal structure, one side of the adsorption end conductive metal 2 is a multi-petal cylindrical structure (i.e. a plurality of openings are designed at the port), the cylinder at the other side is provided with an inverted hook structure, the groove structure and the inverted hook structure can facilitate the close fit of the adsorption end gum cover 1 and the adsorption end conductive metal 2, and the multi-petal cylindrical structure of the adsorption end conductive metal 2 facilitates the close insertion and fit of other external conductive structures; a plane is arranged at the cylindrical barb structure of the conductive metal 2 at the adsorption end, and the metal wire of the electrode wire metal wire 4 is welded on the cylindrical plane of the conductive metal 2 at the adsorption end; the outside of electrode line metal wire 4 is wrapped up with the shell of plastic material outward, and electrode line gum cover 3 promptly, the centre of two electrode line gum covers 3 glues together. A fixed end conductive metal 6 and a fixed end rubber sleeve 5 are installed on one side of the electrode wire, one side of the fixed end conductive metal 6 is of a multi-petal cylindrical structure, the other side of the fixed end conductive metal 6 is of an inverted hook structure, a plane is arranged at the inverted hook structure, the adsorption end conductive metal 2 is similar to the adsorption end conductive metal, and an electrode wire metal wire 4 is welded at the plane of the fixed end conductive metal 6; the inside of stiff end gum cover 5 is fluted, and there is the arch stiff end conductive metal 6's middle part, and the protruding of stiff end conductive metal 6 and the recess cooperation of stiff end gum cover 5 are in the same place. The inner front end of the fixed end conductive metal 6 is provided with a circle of bulges which are convenient for connecting with the outer side joint.

The structure of the quick plug-in mechanism consists of a fixed end plug 5, a fixed end socket conductive metal 6 and a fixed end socket rubber sleeve 7; a gap is reserved between the plastic shell of the fixed end plug 5 and the conductive metal of the fixed end socket conductive metal 6, and the front end of the fixed end plug 5 is provided with a convex structure; the conducting metal front part of the fixed end socket rubber sleeve 7 is provided with a groove, the conducting metal is inserted into the gap between the fixed end plug 5 and the fixed end socket conducting metal 6, and the groove of the fixed end socket rubber sleeve 7 and the protrusion of the fixed end plug 5 are tightly matched together to realize a quick plugging mechanism. The other side of the fixed end socket rubber sleeve 7 is of a threaded structure, and the fixed end socket rubber sleeve 7 is fixed on the fixed seat through the threaded structure and a nut.

It should be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. For example, it does not exclude that a wrapped electrode line metal wire can have 2 metal wires (one wire corresponds 2 electrode slices), 3 (one wire corresponds 3 electrode slices), 4 (one wire corresponds 4 electrode slices), 5 (one wire corresponds 5 electrode slices), 6 (one wire corresponds 6 electrode slices), 7 (one wire corresponds 7 electrode slices), 8 (one wire corresponds 8 electrode slices), constitute in pairs, and every two electrode lines are all insulated from each other. Or a simple variation of the corresponding projections or recesses in each joint on the basis of the above-described solution.

Claims

1. The electrode wire at least comprises a conjoined structure formed by connecting two wire singles in parallel, and is characterized in that each wire singles sequentially comprises an adsorption end rubber sleeve (1), an adsorption end conductive metal (2), an electrode wire rubber sleeve (3), an electrode wire metal wire (4), a fixed end rubber sleeve (5) and a fixed end conductive metal (6) from an adsorption end to a fixed end, the adsorption end conductive metal (2) is hermetically wrapped in the adsorption end rubber sleeve (1), the electrode wire metal wire (4) is positioned in an inner cavity of the electrode wire rubber sleeve (3), the fixed end conductive metal (6) is hermetically wrapped in the fixed end rubber sleeve (5), one end of the electrode wire metal wire (4) is fixedly connected with the adsorption end conductive metal (2), the other end of the electrode wire metal wire (4) is fixedly connected with the fixed end conductive metal (6), the adsorption end conductive metal (2), the fixed end conductive metal (6) and an air exhaust pipe cavity penetrating through the axial direction of the electrode wire rubber sleeve (3) are provided with the adsorption end conductive metal (2), the fixed end (6) and the air exhaust pipe cavity .

2. The electrode wire according to claim 1, characterized in that the conductive metal (2) at the adsorption end comprises an outer pipe section I (21) and an inner pipe section I (22), a convex ring (23) is arranged between the outer pipe section I and the inner pipe section I, the inner wall of the rubber sleeve (1) at the adsorption end is provided with a ring groove (13), and the convex ring (23) is sleeved with the ring groove (13) in a matching way, so that the conductive metal (2) at the adsorption end is wrapped by the rubber sleeve (1) at the adsorption end and cannot be separated.

3. The electrode wire according to claim 2, characterized in that the end opening wall of the outer tube section I (21) is provided with at least one pair of notches along the radial direction, so that the tube opening has elastic deformation capability, and when the tube opening is sleeved with the metal tube end (12) of the sucking disc (11), the elastically deformed outer tube section I (21) can have clamping force on the metal tube end (12) to maintain good electric contact performance; the outer wall of the inner pipe section I (22) and the inner wall of the adsorption end rubber sleeve (1) are provided with annular areas, the end part of the electrode wire rubber sleeve (3) is inserted into the annular areas, and the outer wall of the inner pipe section I (22) is provided with a plurality of layers of annular inverted teeth for compressing the end part of the electrode wire rubber sleeve (3) to prevent the end part from falling off.

4. The electrode wire as claimed in claim 1, wherein the fixed end conductive metal (6) comprises an outer pipe section two (61) and an inner pipe section two (62), a protruding ring (63) is arranged between the outer pipe section two and the inner pipe section two, the inner wall of the fixed end rubber sleeve (5) is provided with a ring groove (53), the protruding ring (63) is sleeved with the ring groove (53) in a matching way, so that the fixed end conductive metal (6) is wrapped by the fixed end rubber sleeve (5) and cannot be separated.

5. The electrode wire according to claim 4, characterized in that at least one pair of notches are radially arranged on the end wall of the second outer tube section (61), so that the tube opening has elastic deformation capability, and when the tube opening is sleeved with the metal tube end of the socket rubber sleeve conductive core (8), the elastically deformed second outer tube section (61) can have clamping force on the socket rubber sleeve conductive core (8) to keep good electrical contact performance; the outer wall of inner tube section two (62) has the annular district with the inner wall of stiff end gum cover (5), and the tip of electrode line gum cover (3) inserts in this annular district, and it has multilayer annular pawl to distribute on the outer wall of inner tube section two (62) for compress tightly electrode line gum cover (3) tip and prevent that it from droing.

6. Electrode wire according to any of claims 1-5, characterised in that the cylindrical barb structure of the conducting metal (2) of the suction end has a flat surface and the wire of the electrode wire (4) is welded to the cylindrical flat surface of the conducting metal (2) of the suction end.

7. The utility model provides a quick grafting mechanism of electrode line, includes stiff end gum cover (5), stiff end conductive metal (6) and stiff end socket gum cover (7), its characterized in that, stiff end conductive metal (6) cover admittedly in stiff end gum cover (5) axle center tube intracavity, there is annular fit clearance at the tip of stiff end conductive metal (6) and the tip of stiff end gum cover (5), there is annular arch (9) on stiff end gum cover (5) are located the inner wall of annular fit clearance section, stiff end socket gum cover (7) can match in this annular clearance of cominging in and going out, be equipped with annular groove (10) on the outer pipe wall of stiff end socket gum cover (7), this annular groove (10) can match the suit in the annular arch (9) outside.

8. The electrode wire rapid plugging mechanism according to claim 7, wherein at least one pair of notches are radially arranged on the pipe wall of the port of the fixed end conductive metal (6) so that the pipe orifice has elastic deformation capability.

9. The electrode wire quick plugging mechanism according to claim 7, wherein the width of the annular protrusion (9) is a, the width of the annular groove (10) is b, and a is less than or equal to b.