A rehabilitation training device based on electrotherapy

By using the meshing connection of the electric electrode post and the electric electrode sleeve, and the magnetic attraction of the electromagnet, the problem of loose connection of the electrotherapy device electrode pads is solved, achieving a firm connection, automatic cleaning and heat dissipation, thus improving the safety and convenience of using the electrotherapy device.

CN122376997APending Publication Date: 2026-07-14JIANGSU TAIZHOU PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU TAIZHOU PEOPLES HOSPITAL
Filing Date
2026-06-10
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The electrode connections of existing electrotherapy devices are prone to loosening, affecting power supply and use. Furthermore, the connectors and plugs may become loose due to human activity during use.

Method used

The connection is formed by the meshing of the electric contact pin and the electric contact sleeve, combined with the magnetic attraction of the electromagnet. The contact surface is cleaned by the relative movement of the gears and tooth grooves. With the help of the winding mechanism and heat dissipation design, the connection is guaranteed to be strong and the conductivity is safe.

Benefits of technology

It achieves a firm connection between the electrode pads and the electrotherapy device, preventing them from falling off, automatically cleaning the contact surface, reducing resistance, improving conductivity safety, and facilitating wire storage and heat dissipation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of rehabilitation training equipment based on electrotherapy, it is related to electrotherapy instrument technical field, including electrotherapy instrument, electrode paste, terminal and plug, its core is in terminal and is equipped with connecting mechanism;When plug is inserted into terminal and is powered on, connecting mechanism will be connected with the tooth sleeve outside the tooth column periphery side, to provide fastening connection while forming current path, using electromagnetic adsorption and gear tooth groove cooperation, not only effectively prevent line loosening caused by personnel activity from falling off, also can be scraped clean in the connection process to the connecting place of tooth column and tooth sleeve, remove oxide layer to reduce contact resistance, and also have automatic winding and heat dissipation function, improve the security and stability of electrotherapy rehabilitation training.
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Description

Technical Field

[0001] This invention relates to electrotherapy device technology, specifically a rehabilitation training device based on electrotherapy. Background Technology

[0002] As is widely known, electrotherapy devices work by applying electrical discharges to electrodes attached to the body, thereby stimulating muscles, acupoints, and other areas to achieve rehabilitation or training effects. The electrodes need to be stored separately when not in use, therefore an electrical connection must be made between the electrodes and the electrotherapy device each time it is used.

[0003] The shortcomings of existing technologies are that the common connection method on the market is to use plugs and connectors to insert and connect with each other. However, this connection method relies entirely on the size fit between the plug and connector to ensure the connection is firm. Long-term plugging and unplugging of the plug and connector can lead to loosening of the connection. At the same time, during use, the electrode may also loosen between the connector and plug due to the movement of the wires by people, thus affecting the power supply of the electrode. Summary of the Invention

[0004] The purpose of this invention is to provide a rehabilitation training device based on electrotherapy to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: comprising: an electrotherapy device and electrode patches; further comprising: Multiple sets of connectors are connected to the electrotherapy device via wires. A plug, wherein the plug is connected to electrode contacts via a wire; A power-connecting toothed column is fixedly installed inside the connector. A power-connecting toothed sleeve is movably connected to the top of the plug; A connecting mechanism is disposed within the connector. The connecting mechanism drives and connects the power-connecting toothed column and the power-connecting toothed sleeve. When the plug is inserted into the connector and energized, the connecting mechanism passively fits the power-connecting toothed sleeve onto the outer periphery of the power-connecting toothed column. This provides a secure connection between the connector and the plug, while simultaneously creating a current path between the electrotherapy device and the electrode pads. Furthermore, it can scrape and clean the connection between the power-connecting toothed column and the power-connecting toothed sleeve.

[0006] As a further description of the above technical solution: the surface of the electrotherapy device is magnetically attracted to multiple sets of connectors via multiple sets of magnetic strips.

[0007] As a further description of the above technical solution: the connector is provided with a socket, a power receiving compartment and a winding compartment in sequence. A limit groove is provided on the inner side wall of the winding compartment. A limit ring is rotatably connected in the limit groove. The limit ring is fixedly sleeved on the middle of the outer periphery of the rotating sleeve. The rotating sleeve is rotatably connected in the winding compartment. A winding rod is horizontally inserted into the center of the rotating sleeve. A bearing is provided at the connection between the winding rod and the rotating sleeve. One end of the winding rod passes through one side of the rotating sleeve through the bearing and is fixedly connected to the inner side wall of the connector. The other end of the winding rod passes through the other side of the rotating sleeve through the bearing and is inserted into the power receiving compartment and fixedly connected to the insulating fixing sleeve. One side of the rotating sleeve is connected to the winding compartment through a supporting rotary bearing. Wires are wound on the surface of the winding rod.

[0008] As a further description of the above technical solution: the connecting mechanism includes an insulating fixing sleeve fixedly installed at the end of the receiving compartment, an electromagnet is fixedly installed inside the insulating fixing sleeve, the electromagnet is connected to an electric wire, and a receiving tooth column is fixedly connected to the end face of the electromagnet.

[0009] As a further description of the above technical solution: the connecting mechanism also includes a telescopic electromagnetic ring movably connected to the top of the plug, and a power-connecting tooth sleeve is fixedly connected to the top of the telescopic electromagnetic ring, and a power-connecting tooth post can be detachably inserted into the power-connecting tooth sleeve.

[0010] As a further description of the above technical solution: the outer periphery of the power-connecting tooth column forms an inclined gear shape, and the inner side of the power-connecting tooth sleeve also forms a corresponding and matching tooth groove shape.

[0011] As a further description of the above technical solution: rotating balls are provided at intervals on the gear sidewall on the outer periphery of the power-connecting gear column and on the inner sidewall of the tooth groove on the inner side of the power-connecting gear sleeve.

[0012] As a further description of the above technical solution: a slider is provided on the outer periphery of the telescopic electromagnetic ring, the slider is slidably connected in the slide rail, the front section of the slide rail is a linear trajectory and the rear section is an arc shape, the slide rail is correspondingly opened on the inner side wall of the top of the plug, and the end face of the telescopic electromagnetic ring away from the power-connecting tooth sleeve is connected to the inner side wall of the plug through a return spring.

[0013] As a further description of the above technical solution: a heat sink can be detachably installed on the outer periphery of the connector corresponding to the electrical compartment.

[0014] As a further description of the above technical solution: the inner wall of the socket is recessed inward to form a slot, and a rubber ring is detachably inserted into the slot, and the rubber ring is fixedly sleeved on the outer periphery of the end of the plug.

[0015] In the above technical solution, the rehabilitation training device based on electrotherapy provided by the present invention has the following beneficial effects: 1. Secure connection to prevent detachment: It adopts a unique connection mechanism. When energized, the magnetic attraction generated by the electromagnet attracts the telescopic electromagnetic ring, and the gear-shaped meshing of the connecting tooth column and the connecting tooth sleeve provides a secondary tightening of the wire head and plug. This effectively solves the problem of easy loosening of traditional plug connection methods and prevents the connection from falling off due to people pulling the wire during rehabilitation training.

[0016] 2. Automatic cleaning reduces resistance: During the connection process, when the connecting tooth sleeve is fitted onto the connecting tooth post, the relative movement of the gear and tooth groove can scrape and wipe the contact surface. This action can scrape off the oxide layer and attached dust and debris on the metal surface, keeping the contact end face clean, thereby reducing the contact resistance and avoiding the connection from overheating or generating electric sparks due to excessive resistance, thus improving the safety of electrical conduction.

[0017] 3. Easy to dissipate heat and clean: A removable heat dissipation plate is designed on the outer periphery of the connector corresponding to the electrical compartment. This not only helps to dissipate heat from the inside of the electrical compartment, preventing overheating from affecting equipment performance due to prolonged power supply, but also makes it convenient for users to clean up oxide layer debris and other impurities scraped off.

[0018] 4. Neat wiring and flexible use: The connector integrates a winding mechanism, allowing the wire to be automatically wound up or unwound. Combined with the magnetic strip adsorption design on the surface of the electrotherapy device, this makes the device easy to store when not in use, flexible to extend when in use, and prevents the wire from shifting due to pulling. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a schematic diagram of a structure where the connector and plug are separated, as provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the connector with the plug inserted inside in a non-energized state, provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the connector with the plug inserted in the power-on state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the connector provided in an embodiment of the present invention; Figure 6This is a schematic diagram of the structure of the telescopic electromagnetic ring provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the electrical contact sleeve provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the winding rod provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1-Electrotherapy device; 2-Connector; 3-Wire; 4-Magnetic strip; 6-Plug; 7-Electrode patch; 8-Heat sink; 9-Rubber ring; 10-Socket; 11-Slot; 12-Telescopic electromagnetic ring; 13-Electrification chamber; 14-Winding chamber; 15-Limiting groove; 16-Limiting ring; 17-Supporting rotary bearing; 18-Insulating fixing sleeve; 19-Rotating sleeve; 20-Winding rod; 21-Electrification gear column; 22-Electromagnet; 23-Rotating ball; 24-Electrification gear sleeve; 25-Sliding ball; 26-Slide rail; 27-Reset spring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] Please see Figures 1-8 This invention provides a technical solution for a rehabilitation training device based on electrotherapy, comprising: an electrotherapy device 1 and electrode patches 7; and further comprising: Multiple sets of connectors 2 are connected to the electrotherapy device 1 via wires 3; Plug 6, plug 6 is connected to electrode 7 via wire 3; The power-connecting toothed post 21 is fixedly installed inside the connector 2. The power connection sleeve 24 is movably connected to the top of the plug 6; The connecting mechanism is located inside the connector 2. The connecting mechanism drives the connection toothed column 21 and the connection toothed sleeve 24. When the plug 6 is inserted into the connector 2 and energized, the connecting mechanism passively fits the connection toothed sleeve 24 onto the outer periphery of the connection toothed column 21. This provides a tight connection between the connector 2 and the plug 6, while forming a current path between the electrotherapy device 1 and the electrode pads. It can also scrape and clean the connection between the connection toothed column 21 and the connection toothed sleeve 24.

[0024] In another embodiment of the present invention, preferably, multiple sets of connectors 2 are magnetically attracted to the surface of the electrotherapy device 1 by multiple sets of magnetic strips 4.

[0025] In another embodiment of the present invention, the connector 2 is provided with a socket 10, a power receiving compartment 13 and a winding compartment 14 in sequence. The inner side wall of the winding compartment 14 is provided with a limiting groove 15. A limiting ring 16 is rotatably connected in the limiting groove 15. The limiting ring 16 is fixedly sleeved on the middle of the outer periphery of the rotating sleeve 19. The rotating sleeve 19 is rotatably connected in the winding compartment 14. A winding rod 20 is horizontally inserted into the center of the rotating sleeve 19. A bearing is provided at the connection between the winding rod 20 and the rotating sleeve 19. One end of the winding rod 20 passes through the bearing and is fixedly connected to the inner side wall of the connector 2. The other end of the winding rod 20 passes through the bearing and is inserted into the power receiving compartment 13 and fixedly connected to the insulating fixing sleeve 18. One side of the rotating sleeve 19 and the winding compartment 14 are connected by a supporting rotary bearing 17. The surface of the winding rod 20 is wound with an electric wire 3.

[0026] In another embodiment of the present invention, the connecting mechanism includes an insulating fixing sleeve 18 fixedly installed at the end of the power receiving compartment 13, an electromagnet 22 fixedly installed inside the insulating fixing sleeve 18, the electromagnet 22 is connected to the wire 3, and a power receiving tooth post 21 is fixedly connected to the end face of the electromagnet 22.

[0027] In another embodiment of the present invention, the connecting mechanism further includes a telescopic electromagnetic ring 12 movably connected to the top of the plug 6, and a power-connecting tooth sleeve 24 is fixedly connected to the top of the telescopic electromagnetic ring 12. The power-connecting tooth sleeve 24 is detachably inserted into the power-connecting tooth post 21.

[0028] In another embodiment of the present invention, the outer periphery of the power-connecting tooth post 21 is formed into an inclined gear shape, and the inner side of the power-connecting tooth sleeve 24 is also formed into a corresponding and adapted tooth groove shape.

[0029] In another embodiment of the present invention, rotating balls 23 are provided at intervals on the gear sidewall on the outer periphery of the power-connected gear post 21 and on the inner sidewall of the tooth groove on the inner side of the power-connected gear sleeve 24.

[0030] In another embodiment of the present invention, a slider 25 is provided on the outer periphery of the telescopic electromagnetic ring 12. The slider 25 is slidably connected in the slide rail 26. The front section of the slide rail 26 is a linear trajectory and the rear section is an arc shape. The slide rail 26 is correspondingly opened on the inner side wall of the top end of the plug 6. The end face of the telescopic electromagnetic ring 12 away from the power-connecting tooth sleeve 24 is connected to the inner side wall of the plug 6 through a return spring 27.

[0031] In another embodiment of the present invention, a heat sink 8 is detachably installed on the outer periphery of the connector 2 at the position corresponding to the electrical compartment 13.

[0032] In another embodiment of the present invention, preferably, the inner sidewall of the socket 10 is recessed inward to form a slot 11, and a rubber ring 9 is detachably inserted into the slot 11. The rubber ring 9 is fixedly sleeved on the outer periphery of the end of the plug 6.

[0033] Electrotherapy device 1 discharges electricity through electrode pads attached to the human body, thereby stimulating muscles, acupoints, and other areas to achieve rehabilitation or training effects. The electrode pads need to be stored separately when not in use. Therefore, each time they are used, they need to be electrically connected to the electrotherapy device 1. Currently, the common connection method on the market is to use plug 6 and connector to insert and connect with each other. However, this connection method relies entirely on the size compatibility between plug 6 and connector to ensure the firmness of the connection between connector and plug 6. However, prolonged insertion and removal of plug 6 and connector can lead to loosening of the connection. At the same time, during use, the electrode pads may also loosen due to the movement of the wire 3 by the user, which may affect the power supply of the electrode pads. The electrotherapy device 1 employs a more robust connection method for the connection between the electrode pads and the electrotherapy device 1, specifically as follows: When using the device, after taking out the electrotherapy device 1 and the corresponding number of electrode patches 7, first take out the electrode patches 7 that are not connected to the electrotherapy device 1 and stick them on the skin of the area where electrotherapy is needed. After removing the connector 2 that is magnetically attracted by the magnetic strip 4 from the electrotherapy device 1, pull the connector 2. At this time, the wire 3 rolled up inside the connector 2 will be released outward due to the pull of the person until the connector 2 is pulled to the position of the plug 6 connected by the wire 3 on the corresponding electrode patch 7. Then, the plug 6 can be inserted into the connector 2. At this time, the connector 2 and the plug 6 are initially fixed by the connection mechanism set in the connector 2. Then, start the electrotherapy device 1 to transmit the current to the electrode pads in the electrode patch 7 through the wire 3, so as to perform electrotherapy rehabilitation on the human body. In this process, it is important to explain the connection mechanism that securely connects terminal 2 and plug 6. The specific structure and working principle are as follows: With the plug 6 fully inserted into the connector 2, the rubber ring 9 on the outer side of the end of the plug 6 is inserted into the slot 11 at the opening end of the socket 10 in the connector 2. The rubber ring 9 and the slot 11 provide initial fixation between the plug 6 and the connector 2. In the initially fixed state, plug 6 is fully inserted into connector 2, combined with the attached... Figure 3As shown, the connector 2 has a socket 10, a power receiving compartment 13, and a winding compartment 14 sequentially opened from the open end to the end. The rubber ring 9 and its insertion slot 11 are located on the inner side wall of the socket 10. At this time, the plug 6 has been fully inserted into the connector 2. The telescopic electromagnetic ring 12 at the top of the plug 6 is inserted into the power receiving compartment 13 and into the insulating fixing sleeve 18. However, the telescopic electromagnetic ring 12 is not connected to the electromagnet 22. The power receiving tooth sleeve 24 protruding towards the front end inside the telescopic electromagnetic ring 12 is not connected to the power receiving tooth post 21 inside the insulating fixing sleeve 18. At this time, the connection between the plug 6 and the connector 2 is completely limited by the meshing connection between the rubber ring 9 and the slot 11. It should be noted that the winding tube 20 is connected to the winding chamber 14 inside the connector 2 via the rotating sleeve 19, which is rotatably connected by the support rotary bearing 17. The winding tube 20 is inserted into the junction chamber 13 and fixedly connected to the insulating fixing sleeve 18. During the winding and unwinding process, the winding tube 20 remains stationary, while only the rotating sleeve 19 rotates. The end face of the rotating sleeve 19 has a cable routing hole to discharge the wire 3 outward and connect it to the electrotherapy device 1. Therefore, under the rotation of the rotating sleeve 19, the wire is wound or unwound on the fixed winding tube 20 through the cable routing hole as the rotating sleeve 19 rotates. The support rotary bearing 17 is a bearing that can be stopped at any time and can rotate. This bearing is existing technology and will not be described in detail here. At this time, due to the function of the support rotary bearing 17, the wire 3 will not pull on the connector 2. Therefore, the connector 2 and the plug 6 can be firmly connected by the initial constraint between the rubber ring 9 and the slot 11. A limiting ring 16 is fixedly provided on the outer periphery of the rotating sleeve 19, and the limiting ring 16 is rotatably connected in the limiting groove 15 correspondingly opened on the inner side wall of the winding compartment 14, providing a limit for the rotation of the rotating sleeve 19. After all electrode patches 7 are pasted on and all plugs 6 connected to electrode patches 7 are connected to terminals 2, the electrotherapy device 1 can be turned on for use. After the electrotherapy device 1 is powered on, the current flows in two steps: Step 1: Current flows to the electromagnet 22 installed in the power receiving compartment 13 inside the connector 2. After the electromagnet 22 is energized, it generates magnetism. The magnetism generated by the electromagnet 22 attracts the telescopic electromagnetic ring 12 at the top of the plug 6 inserted in the power receiving compartment 13, thereby rotating the telescopic electromagnetic ring 12 forward from the top of the plug 6 and magnetically connecting the end face of the telescopic electromagnetic ring 12 with the electromagnet 22. At this time, the power receiving tooth sleeve 24, which is fixedly connected to the front end of the telescopic electromagnetic ring 12 and protrudes forward, is correspondingly sleeved on the outer periphery of the power receiving tooth post 21. Step 2: The external of the connecting tooth post 21 is fitted with a connecting tooth sleeve 24 and tightly connected. At this time, the connecting tooth post 21 is connected to the inside of the electrotherapy device 1 through the wire 3, and the connecting tooth sleeve 24 is connected to the electrode plate inside the electrode patch 7 through the wire 3. After the connecting tooth post 21 and the connecting tooth sleeve 24 are tightly fitted together, a current path is formed. The current flow direction is: electrotherapy device 1 → wire 3 → connecting tooth post 21 → connecting tooth sleeve 24 → wire 3 → electrode patch 7. At this time, the electrode plate inside the electrode patch 7 is energized. At the same time, the magnetism generated by the electromagnet 22 after being energized attracts the telescopic electromagnetic ring 12, thereby firmly fixing the connector 2 and the plug 6. This effectively prevents the plug 6 and the connector 2 from falling off due to the movement of personnel during the electrotherapy rehabilitation training. It should be noted that after the electromagnet 22 is energized, it attracts the telescopic electromagnetic ring 12, enabling the ring to rotate and extend. This is because a slider 25 is provided on the outer periphery of the telescopic electromagnetic ring 12, and the slider 25 is slidably connected to a corresponding slide rail 26 on the inner side wall of the front end of the plug 6. Figure 7 As shown, the slide rail 26 consists of two sections: a short horizontal track and an arc-shaped track. Since the initial connection is not energized, the telescopic electromagnetic ring 12 is not in contact with the electromagnet 22, nor are the energized gear column 21 and the energized gear sleeve 24. Therefore, the trajectory of the sleeve-like motion between the energized gear sleeve 24 and the energized gear column 21 does not restrict the movement of the telescopic electromagnetic ring 12. At this time, the telescopic electromagnetic ring 12 is in its own horizontal displacement. After the slider 25 completes its first displacement within the slide rail 26, the energized gear sleeve 24 and the energized gear column 21 begin to contact, and together with the attached... Figure 3 , 4 As shown in Figure 5, the outer periphery of the power-connecting toothed column 21 forms an inclined gear shape, while the inner side of the power-connecting toothed sleeve 24 also forms a corresponding and matching tooth groove. After the power-connecting toothed sleeve 24 begins to fit onto the outer periphery of the power-connecting toothed column 21 and continues to insert the power-connecting toothed column 21 inward, due to the limitation of the shape of the tooth groove on the inner side of the power-connecting toothed sleeve 24 and the gear on the outer periphery of the power-connecting toothed column 21, the tooth groove on the inner side of the power-connecting toothed sleeve 24 will move in contact with the gear on the outer periphery of the power-connecting toothed column 21. At this time, the movement of the power-connecting toothed sleeve 24 will drive the telescopic electromagnetic ring 12 to perform arc-shaped movement, and the trajectory of the movement is matched with the second segment trajectory of the slide rail 26. Rotating balls 23 are alternately arranged in the tooth grooves on the inner side of the gear on the outer periphery of the electric tooth column 21 and the inner side of the electric tooth sleeve 24. The rotating balls 23 can facilitate the contact and rotation between the electric tooth column 21 and the electric tooth sleeve 24 along the track of the gear and tooth groove. This design not only utilizes the gears and grooves between the power-connecting toothed column 21 and the power-connecting toothed sleeve 24 to form a certain meshing force, further fixing and limiting the terminal 2 and plug 6, but also reduces the contact resistance between the power-connecting toothed column 21 and the power-connecting toothed sleeve 24, while increasing the contact end face between the power-connecting toothed column 21 and the power-connecting toothed sleeve 24 for better conductivity. The electric contact pin 21 and the electric contact sleeve 24 are made of conductive metal. After long-term use and exposure to air, an oxide layer may form on the surface. The presence of the oxide layer may generate a certain contact resistance. The electrotherapy device 1 usually outputs high-voltage pulses. If the contact resistance is high, the connection will heat up violently and even generate electric sparks. The gear on the outer periphery of the electric contact pin 21 and the tooth groove on the inner side of the electric contact sleeve 24 can also scrape the surface of the gear and tooth groove with the edge. The scraping effect is to make the electric contact pin 21 and the electric contact sleeve 24 wipe and scrape during the contact process, scraping off the oxide layer on the surface, and also scraping off dust and other debris that may be attached to the surface, improving the cleanliness of the contact end face of the electric contact pin 21 and the electric contact sleeve 24, and better flowing current. The scraped debris can be cleaned through the heat sink 8, which is detachably connected to the middle of the connector 2. The heat sink 8 is designed not only to remove the debris and oxide layer scraped between the electric tooth column 21 and the electric tooth sleeve 24, but also to dissipate heat inside the electric chamber 13. This prevents the heat generated by the current flowing between the electric tooth column 21 and the electric tooth sleeve 24 from causing the temperature inside the electric chamber 13 to become too high during long-term use, which would affect the conductivity and the use of the electrotherapy device 1.

[0034] After use, when the electrotherapy device 1 is turned off, the electromagnet 22 loses its magnetism and is de-energized. At this time, the return spring 27 connected to the telescopic electromagnetic ring 12 and the plug 6 is stretched and rebounds, pulling the telescopic electromagnetic ring 12 along the slide rail 26 towards the initial end, thereby separating the telescopic electromagnetic ring 12 from the electromagnet 22 and eliminating the fastening force. Only a certain force is needed to break through the meshing force between the rubber ring 9 and the slot 11, and the plug 6 can be pulled out from the connector 2.

[0035] It should be added that an insulating pad is provided between the electromagnet 22 and the energized toothed post 21 to prevent the current in the electromagnet 22 from affecting the current in the energized toothed post 21. The current path connecting the electromagnet 22 and the current path connecting the energized toothed post 21 are independent of each other.

[0036] Combined with appendix Figure 8As shown, the winding rod 20 is fixed inside the rotating sleeve 19, and one end of the wire 3 wound on the surface of the winding rod 20 passes through the end face of the rotating sleeve 19 and connects to the electrotherapy device 1. The other end of the wire 3 is inserted into the inside of the winding rod 20 through a hole and is discharged outward through the end face of the winding rod 20 inserted into the receiving chamber 13 and connected to the receiving tooth column 21. Therefore, when the rotating sleeve 19 rotates, the winding rod 20 is fixed, and the end of the wire 3 discharged outward will be connected to the end face of the rotating sleeve 19 through the hole of the wire 3, thereby winding or unwinding the wire 3 on the surface of the winding rod 20. One end of the wire 3 is fixed, and the other end can realize the function of winding. This is the prior art.

[0037] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rehabilitation training device based on electrotherapy, comprising: The electrotherapy device (1) and electrode patches (7) are characterized in that they further include: Multiple sets of connectors (2) are connected to the electrotherapy device (1) via wires (3); The plug (6) is connected to the electrode pad (7) via the wire (3); A power-connecting toothed post (21) is fixedly installed inside the connector (2); Electrical connection sleeve (24), which is movably connected to the top of the plug (6); The connecting mechanism is located inside the connector (2). The connecting mechanism drives the connection of the electric tooth column (21) and the electric tooth sleeve (24). When the plug (6) is inserted into the connector (2) and energized, the connecting mechanism passively fits the electric tooth sleeve (24) onto the outer periphery of the electric tooth column (21). While providing a tight connection between the connector (2) and the plug (6), it forms a current path between the electrotherapy device (1) and the electrode plate, and can scrape and clean the connection between the electric tooth column (21) and the electric tooth sleeve (24).

2. The rehabilitation training device based on electrotherapy according to claim 1, characterized in that, The surface of the electrotherapy device (1) is magnetically attracted to multiple sets of connectors (2) by multiple sets of magnetic strips (4).

3. The rehabilitation training device based on electrotherapy according to claim 2, characterized in that, The connector (2) is provided with a socket (10), a power receiving compartment (13), and a winding compartment (14) in sequence. A limiting groove (15) is provided on the inner side wall of the winding compartment (14). A limiting ring (16) is rotatably connected in the limiting groove (15). The limiting ring (16) is fixedly sleeved on the middle of the outer periphery of the rotating sleeve (19). The rotating sleeve (19) is rotatably connected in the winding compartment (14). A winding rod (20) is horizontally inserted into the center of the rotating sleeve (19). 0) A bearing is provided at the connection with the rotating sleeve (19). One end of the winding rod (20) passes through the bearing and is fixedly connected to the inner wall of the terminal (2) on one side of the rotating sleeve (19). The other end of the winding rod (20) passes through the bearing and is inserted into the electrical junction box (13) and fixedly connected to the insulating fixing sleeve (18). One side of the rotating sleeve (19) is connected to the winding box (14) through the support rotary bearing (17). The surface of the winding rod (20) is wound with wire (3).

4. The rehabilitation training device based on electrotherapy according to claim 3, characterized in that, The connection mechanism includes an insulating fixing sleeve (18) fixedly installed at the end of the power receiving compartment (13), an electromagnet (22) fixedly installed inside the insulating fixing sleeve (18), the electromagnet (22) is connected to the wire (3), and a power receiving tooth column (21) is fixedly connected to the end face of the electromagnet (22).

5. A rehabilitation training device based on electrotherapy according to claim 4, characterized in that, The connection mechanism also includes a telescopic electromagnetic ring (12) movably connected to the top of the plug (6), and a power-connecting tooth sleeve (24) is fixedly connected to the top of the telescopic electromagnetic ring (12), and a power-connecting tooth post (21) can be detachably inserted into the power-connecting tooth sleeve (24).

6. A rehabilitation training device based on electrotherapy according to claim 5, characterized in that, The outer periphery of the power-connecting toothed column (21) forms an inclined gear shape, and the inner side of the power-connecting toothed sleeve (24) also forms a corresponding and matching toothed groove.

7. A rehabilitation training device based on electrotherapy according to claim 6, characterized in that, Rotating balls (23) are provided at intervals on the gear sidewall on the outer periphery of the power-connecting gear column (21) and on the inner sidewall of the tooth groove on the inner side of the power-connecting gear sleeve (24).

8. A rehabilitation training device based on electrotherapy according to claim 7, characterized in that, The telescopic electromagnetic ring (12) is provided with a slider (25) on its outer periphery. The slider (25) is slidably connected in the slide rail (26). The front section of the slide rail (26) is a linear trajectory and the rear section is an arc shape. The slide rail (26) is correspondingly opened on the inner side wall of the top of the plug (6). The end face of the telescopic electromagnetic ring (12) away from the power-connecting tooth sleeve (24) is connected to the inner side wall of the plug (6) through a return spring (27).

9. A rehabilitation training device based on electrotherapy according to claim 8, characterized in that, A heat sink (8) can be detachably installed on the outer periphery of the connector (2) corresponding to the electrical compartment (13).

10. A rehabilitation training device based on electrotherapy according to claim 9, characterized in that, The inner wall of the socket (10) is recessed inward and has a slot (11). A rubber ring (9) is detachably inserted into the slot (11) and is fixedly sleeved on the outer periphery of the end of the plug (6).