阅读说明：本技术 自锁夹头 (Self-locking chuck ) 是由 史翰缨 史建军 韩潇 高川 于 2019-11-06 设计创作，主要内容包括：本发明涉及一种自锁夹头,包括底座、滑板、金属膜和导线；底座的内部前后两端之间开设有滑道,滑板可活动的设置在滑道中,金属膜固定在滑板的上平面上并设于两个滑条之间；导线的一端向前穿过矩形框体并搭接在金属膜的上侧；本发明使得电极片无需加装任何导电接口就能直接使用,并借助导线与治疗仪建立稳定可靠的连接以保证有效持久的使用,且提高了使用安全性；此外,本发明还简化了与之配套的电极片的结构和生产工艺,降低了电极片的制造成本。(The invention relates to a self-locking chuck, which comprises a base, a sliding plate, a metal film and a lead, wherein the sliding plate is arranged on the base; a slide way is arranged between the front end and the rear end of the inside of the base, the sliding plate is movably arranged in the slide way, and the metal film is fixed on the upper plane of the sliding plate and arranged between the two sliding strips; one end of the lead forwards penetrates through the rectangular frame body and is lapped on the upper side of the metal film; the electrode plate can be directly used without any conductive interface, and stable and reliable connection is established with the therapeutic apparatus by virtue of the conducting wire so as to ensure effective and durable use, and the use safety is improved; in addition, the invention also simplifies the structure and the production process of the electrode plate matched with the electrode plate, and reduces the manufacturing cost of the electrode plate.)

1. A self-locking chuck comprises a base, a sliding plate, a metal film and a lead, and is characterized in that a slide way is arranged between the front end and the rear end inside the base, a convex block is formed upwards above the base and on the rear side, the rear end of the convex block is provided with a guide groove, the lower side of the guide groove is communicated with the upper side of the slide way, an inclined surface is formed on the inner wall of the upper side of the front end of the slide way, the sliding plate is movably arranged in the slide way, and the metal film is fixed on the upper plane of the sliding plate; a limiting groove hole is formed in the inner wall of the lower side of the slide way, correspondingly, a button block is formed downwards on the rear side of the lower plane of the slide plate and can be movably inserted into the limiting groove hole, a rectangular frame body is formed upwards on the rear side of the upper plane of the slide plate, the upper side of the rectangular frame body is movably inserted into the guide groove, two symmetrical inclined plates which are obliquely and upwards distributed are formed outwards on the upper side of the front end of the rectangular frame body, the two inclined plates are matched with the inclined surfaces, and a convex point is formed downwards on the front ends of the lower sides of the two inclined plates; the upper plane front side of slide upwards is formed with the locking post, correspondingly, the locking hole has been seted up to the front end of base, the one end of wire is passed the rectangle framework forward and the overlap joint is in the upside of metallic film.

2. The self-locking chuck according to claim 1, wherein the lower surface of the slide plate is attached to the inner wall of the lower side of the slide way, the slide plates are symmetrically formed on the left and right sides of the slide plate, and the upper side of each slide plate is attached to the inner wall of the upper side of the slide way.

3. The self-locking chuck according to claim 1, wherein the left and right sides of the front end of the base are provided with a notch groove symmetrically distributed.

Technical Field

The invention relates to a self-locking chuck.

Background

In the medical and health care field, the low-frequency therapeutic instruments in various types must be electrically connected with electrode plates by leads in use so that therapeutic current generated by the therapeutic instruments is transmitted to the electrode plates; the existing connection mode between the lead and the electrode plate mainly comprises a jack type, a snap-fastener type and a magnetic snap-fastener type; the jack type is that a conductive jack is directly arranged on the electrode plate, or a conductive jack is arranged at the far end of the wire after the wire is led out between the conductive layer and the insulating layer of the electrode plate; the snap fastener is formed by arranging a conductive snap fastener which is matched with each other on the electrode plate and the metal film, and buckling the conductive snap fastener by mechanical force to realize electrical connection; the magnetic snap-fastener type is that a ferromagnetic conductive snap-fastener (female head) and a permanent magnet conductive snap-fastener (male head) are respectively arranged on an electrode plate and a metal film and are attracted by magnetic force to realize electrical connection; the general problems with the three approaches are: the metal film and the electrode plate are separated by external force, and when the metal film is pulled by external force in the using process, the metal film is easy to accidentally loosen to cause current mutation so as to influence the safety of treatment; the conductive jack and the snap fastener have the problems of fouling, abrasion and aging, and the electrode plate is easy to be in poor contact to influence the use; in addition, the electrode plate must be provided with a conductive jack, a conductive connecting wire, a conductive snap fastener or a magnetic conductive snap fastener and other matched conductive interfaces, otherwise, the electrode plate cannot be directly used, and further the structure and the production process of the electrode plate are complex, the manufacturing cost is high, and the electrode plate is to be further improved.

Disclosure of Invention

In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide a self-locking chuck which is stable and reliable in connection, ensures effective and durable use, improves use safety, and simplifies the structure and production process of an electrode plate matched with the electrode plate, so that the electrode plate can be directly used without any conductive interface, and further, the manufacturing cost of the electrode plate is reduced.

The technical scheme adopted by the invention for solving the technical problems is as follows: a self-locking chuck comprises a base, a sliding plate, a metal film and a lead, and is characterized in that a slide way is arranged between the front end and the rear end inside the base, a convex block is formed upwards above the base and on the rear side, the rear end of the convex block is provided with a guide groove, the lower side of the guide groove is communicated with the upper side of the slide way, an inclined surface is formed on the inner wall of the upper side of the front end of the slide way, the sliding plate is movably arranged in the slide way, and the metal film is fixed on the upper plane of the sliding plate; a limiting groove hole is formed in the inner wall of the lower side of the slide way, correspondingly, a button block is formed downwards on the rear side of the lower plane of the slide plate and can be movably inserted into the limiting groove hole, a rectangular frame body is formed upwards on the rear side of the upper plane of the slide plate, the upper side of the rectangular frame body is movably inserted into the guide groove, two symmetrical inclined plates which are obliquely and upwards distributed are formed outwards on the upper side of the front end of the rectangular frame body, the two inclined plates are matched with the inclined surfaces, and a convex point is formed downwards on the front ends of the lower sides of the two inclined plates; the upper plane front side of slide upwards is formed with the locking post, correspondingly, the locking hole has been seted up to the front end of base, the one end of wire is passed the rectangle framework forward and the overlap joint is in the upside of metallic film.

Preferably, the lower plane laminating of slide is on the downside inner wall of slide, the left and right sides of slide all upwards is formed with the draw runner of a mutual symmetric distribution, every the upside of draw runner all laminates on the upside inner wall of slide.

Preferably, the left side and the right side of the front end of the base are both provided with notch grooves which are symmetrically distributed.

Compared with the prior art, the invention has the advantages that: the electrode plate is tightly pressed on the metal film in a surface contact mode, so that the electrode plate can be directly used without additionally arranging any conductive interface, and stable and reliable connection is established with a therapeutic apparatus by virtue of a lead so as to ensure effective and durable use; the pressing force between the electrode plate and the metal film is in the vertical direction, and the electrode plate is connected with the locking column in a positioning way by virtue of the positioning hole, so that the phenomenon of looseness caused by pulling by external force can be effectively prevented, and the use safety is improved; in addition, the invention also simplifies the structure and the production process of the electrode plate matched with the electrode plate, and reduces the manufacturing cost of the electrode plate.

Drawings

FIG. 1 is a right front side structural view of the present invention;

FIG. 2 is a view of the underside of the present invention;

FIG. 3 is a cross-sectional structural view of the present invention;

FIG. 4 is a schematic view of the connection of the present invention;

FIG. 5 is a state diagram of the present invention after connection;

FIG. 6 is a cross-sectional view of the invention after joining;

fig. 7 is a cross-sectional structural view of the electrode sheet of the present invention.

Detailed Description

As shown in fig. 1 to 7, a self-locking chuck comprises a base 1, a sliding plate 2, a metal film 3 and a lead 4; a slide way 12 is arranged between the front end and the rear end of the inside of the base 1, a convex block 11 is formed on the upper rear side of the base 1, a guide groove 13 is formed at the rear end of the convex block 11, the lower side of the guide groove 13 is communicated with the upper side of the slide way 12, an inclined plane 14 is formed on the inner wall of the upper side of the front end of the slide way 12, the slide board 2 is movably arranged in the slide way 12, the metal film 3 is fixed on the upper plane of the slide board 2, the lower plane of the slide board 2 is attached to the inner wall of the lower side of the slide way 12, slide bars 21 which are symmetrically distributed with each other are upwards formed on the left side and the right side of the slide board 2, and the; a limit slot hole 17 is arranged on the inner wall of the lower side of the slideway 12, correspondingly, a button block 24 is formed downwards on the rear side of the lower plane of the sliding plate 2, the button block 24 can be movably inserted into the limit slot hole 17, a rectangular frame 25 is formed upward at the rear side of the upper plane of the slide board 2, the upper side of the rectangular frame 25 is movably inserted into the guide groove 13, two symmetrical inclined plates 23 which are distributed obliquely upwards are formed outwards on the upper side of the front end of the rectangular frame body 25, the two inclined plates 23 are matched with the inclined plane 14, the front ends of the lower sides of the two inclined plates 23 are respectively provided with a convex point 26 downwards, the front side of the upper plane of the sliding plate 2 is provided with a locking column 22 upwards, correspondingly, the front end of the base 1 is provided with a locking hole 16, the left side and the right side of the front end of the base 1 are provided with a notch groove 15 which are symmetrically distributed, and one end of the lead 4 forwards penetrates through the rectangular frame body 25 and is lapped on the upper side of the metal film 3.

When in use: the other end of the lead 4 is connected to a therapeutic apparatus; then, inserting the extension section 51 at one end of the electrode plate 5 between the metal film 3 and the two inclined plates 23 and below the two salient points 26, sleeving the positioning hole 52 at one end of the electrode plate 5 on the locking column 22, then, pointing to the rear by a hand to slide the button block 24, so that the sliding plate 2 and the extension section 51 move backwards together, and in the process, the rectangular frame body 25 moves backwards along the guide groove 13 to ensure the straightness and stability of the movement of the sliding plate 2; with the backward movement of the sliding plate 2, the upper sides of the two sloping plates 23 move backward along the sloping surface 14 and enter the slideway 12, so that the upper sides of the two sloping plates 23 press down while moving, and the extension sections 51 of the electrode plates 5 are pressed on the upper side of the metal film 3 by the two salient points 26, so that the connection is completed; at the same time, the locking pin 22 will slowly move back and contact the inclined surface 14, and then move back along the inclined surface 14 until it is inserted upwards into the locking hole 16, thus completing the locking to prevent the electrode plate 5 from loosening.

The uppermost part of the electrode slice 5 is a protective layer 8, a conductive layer 6 is arranged below the protective layer 8, an insulating layer 9 is arranged on the rear side below the conductive layer 6, and an adhesive layer 7 is arranged on the front side below the conductive layer 6; after the extension section 51 on the electrode plate 5 is pressed on the metal film 3, the lower side of the rear end of the conductive layer 6 is tightly attached to the metal film 3, so that the therapeutic current of the therapeutic apparatus is communicated with the electrode plate 5 through the metal film 3 to normally work; in addition, the positioning hole 52 is eccentrically arranged and is matched with the position of the locking column 22, so that the positions of the protective layer 8 and the adhesive layer 7 of the electrode plate 5 can be prevented from being turned upside down.

After connection, the two salient points 26 generate and maintain a large downward vertical pressure on the electrode plate 5, and when the electrode plate 5 is accidentally pulled, a horizontal pulling force is generated on the electrode plate 5, and the horizontal pulling force cannot offset or reduce the vertical pressure, so that the electrode plate 5 cannot be loosened; the self-locking mode can effectively avoid the condition of sudden change of treatment current caused by accidental loosening of the electrode plate 5, and ensures the safety of the treatment process; meanwhile, the metal film 3 is in surface contact with the conductive layer 6 on the electrode plate 5, so that reliable contact is ensured, and compared with the traditional conductive jack or conductive snap fastener, the conductive snap fastener has the problems of contact failure such as non-contact pollution, stain abrasion and the like, and has better electrical connection characteristics.

When the disassembly is carried out: the front end of the inclined plane 14 is slightly lifted upwards by pointing, so that the locking column 22 is separated from the locking hole 16 downwards, then the button block 24 is slid forwards, so that the sliding plate 2 moves forwards, in the process, the two inclined plates 23 leave the slideway 12 forwards and return upwards along the inclined plane 14 by using the elasticity of the inclined plates, until the two salient points 26 leave the electrode plate 5, and finally the electrode plate 5 is removed.

The invention adopts a surface contact mode to tightly press the electrode plate 5 on the metal film 3, thereby leading the electrode plate 5 to be directly used without adding any conductive interface and establishing stable and reliable connection with a therapeutic apparatus by virtue of the lead 4 so as to ensure effective and durable use; the pressing force between the electrode plate 5 and the metal film 3 is vertical, and the electrode plate is connected with the locking column 22 in a positioning way by virtue of the positioning hole 52, so that the phenomenon of looseness caused by pulling by external force can be effectively prevented, and the use safety is improved; in addition, the invention also simplifies the structure and the production process of the electrode plate matched with the electrode plate, and reduces the manufacturing cost of the electrode plate.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.