Low-frequency therapeutic instrument

Abstract

The invention belongs to the technical field of therapeutic instruments, and particularly relates to a low-frequency therapeutic instrument which comprises a therapeutic instrument, an electrode plate, a dustproof shield and an instrument base, a support is fixedly installed at the center of the top of the instrument base, the therapeutic instrument is installed at the upper end of the support, and the therapeutic instrument is the low-frequency therapeutic instrument. The lower end of the treatment instrument is fixedly connected with a traction cable, and the other end of the traction cable is fixedly connected with an electrode slice. In the dustproof shield opening process, a non-elastic traction rope pulls a movable frame to enable the movable frame to move in the direction away from a support, a second guide wheel conducts smooth guiding on the non-elastic traction rope, and due to the fact that the movable frame is connected with an electrode fixing sliding block through a connecting shaft, the non-elastic traction rope can move in the direction away from the support; the electrode fixing sliding block can drive the electrode plate to move in the direction away from the support, and when the dustproof shield is completely opened, the electrode plate moves to the farthest position away from the support so that the electrode plate and a treatment instrument can be conveniently used.

Description

Technical Field

[0001] The invention relates to a therapeutic apparatus, in particular to a low-frequency therapeutic apparatus. Background Art

[0002] In medicine, pulse current with a frequency below 1000Hz is called low-frequency current or low-frequency pulse current. The method of applying low-frequency pulse current to the human body to treat diseases is called low-frequency electrotherapy. Low-frequency therapeutic instruments, with working frequencies of 2HZ, 15HZ, 100HZ, 2 / 15HZ, 2 / 100HZ, and pulse widths of 2HZ-600us, 15HZ-400us, and 100HZ-200us, mainly regulate the human immune system, endocrine system, and nervous system to dredge meridians and improve microcirculation. Low-frequency therapeutic instruments use transcutaneous electrical acupoint stimulation therapy (TEAS), which is a non-destructive treatment method that uses electrical stimulation of acupoints in traditional Chinese medicine to treat diseases. The instrument generates specific, continuous, and balanced bidirectional pulse waves, and the current passes through the electrodes and flows into the skin, stimulating the acupoint nerve pathways to achieve therapeutic effects.

[0003] During the use of the existing low-frequency therapeutic device, it is usually directly installed in a fixed position, so it cannot be moved during operation. Therefore, medical staff need to go to the installation location of the low-frequency therapeutic device to operate it, which narrows the application scope of the device and is inconvenient for medical staff to operate the device. In addition, the therapeutic device and the electrode sheet are in an exposed state and are easily adhered to dust, which affects the use.

[0004] In view of the above, the present invention designs a low-frequency therapeutic apparatus. Summary of the invention

[0005] The main purpose of the present disclosure is to provide a low-frequency therapeutic apparatus to effectively solve the problems raised by the inventor in the above-mentioned background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] A low-frequency therapeutic instrument comprises a therapeutic instrument, an electrode sheet, a dustproof cover and an instrument base, wherein a bracket is fixedly installed at the center of the top of the instrument base, and the therapeutic instrument is installed at the upper end of the bracket, the therapeutic instrument is a low-frequency therapeutic instrument, the lower end of the therapeutic instrument is fixedly connected to a traction cable, and the other end of the traction cable is fixedly connected to the electrode sheet, the top of the instrument base is provided with two symmetrically arranged installation slots, and a rotating shaft is rotatably installed in the two installation slots, the dustproof cover is fixedly installed on the rotating shaft, and the adjacent sides of the two dustproof covers are in contact and fit with each other, the therapeutic instrument is located in the space formed by the dustproof cover and the instrument base, and when the low-frequency therapeutic instrument is used, a low-frequency electronic pulse current below 1kHz is used, and the pulse current is used to flow through human tissue through the cable to cause an electrochemical or electrophysiological reaction in the human body, which is used to excite neuromuscular tissue, regulate human immunity, endocrine, and nervous system to dredge meridians, improve microcirculation, relieve pain, reduce inflammation, promote local blood circulation, etc.

[0008] An opening and closing control component, the opening and closing control component is used to drive the rotating shaft to rotate a certain angle;

[0009] A driving assembly, the driving assembly is used in conjunction with an opening and closing control assembly;

[0010] A combing component, the combing component is used to smooth the traction cable;

[0011] An unfolding moving component, which is used to drive the electrode sheet to move, and is used in conjunction with a combing component and an opening and closing control component;

[0012] A displacement assembly is used to drive the instrument base to move.

[0013] Preferably, the opening and closing control component includes a swing gear, a movable cavity, an inner slide seat, and a No. 1 rack. The two rotating shafts are fixedly mounted with a swing gear. Two movable cavities are provided in the instrument base, and the movable cavities are communicated with the mounting slots. An inner slide seat is slidably connected in each of the movable cavities. A No. 1 rack is fixedly connected to the top of the inner slide seat, and the No. 1 rack is meshed with the swing gear. The moving directions of the two inner slide seats are opposite.

[0014] Preferably, the driving assembly includes a horizontal guide rod, a sleeve spring, a double-thread advancement screw, and a control stepping motor. The two active cavities are fixedly installed with a horizontal guide rod, and the two inner slide seats are respectively slidably installed on the two horizontal guide rods. The outer side of the instrument base is fixedly installed with a control stepping motor, and a double-thread advancement screw is rotatably installed between the two active cavities, and the output end of the control stepping motor is fixedly connected to the output end of the double-thread advancement screw, and the threads on the parts of the double-thread advancement screw located in the two active cavities have opposite rotation directions. The two inner slide seats are both threadedly installed on the double-thread advancement screw, and a sleeve spring is fixedly connected between the inner slide seat and the inner wall of the active cavity, and the horizontal guide rod passes through the sleeve spring. The control stepping motor drives the double-thread advancement screw to rotate, and the two inner slide seats thereon will slide along the horizontal guide rail, and the two inner slide seats move toward each other. Under the meshing transmission of the No. 1 rack and the swing gear, the swing gear drives the rotating shaft to rotate, and the rotating shaft on the left side rotates counterclockwise, and the rotating shaft on the right side rotates clockwise, so that the two dust cover covers unfold and swing.

[0015] Preferably, the combing assembly includes an electrode movable slide rail, a slide hole, a movable frame, and a first guide wheel. Two horizontally arranged electrode movable slide rails are fixedly installed on the surface of the bracket. A slide hole is opened on the electrode movable slide rail, and a movable frame is installed in the slide hole for limited sliding. The first guide wheel is movably installed on the upper end of the movable frame, and the traction cable passes around the first guide wheel.

[0016] Preferably, the unfolding moving assembly comprises an electrode fixing slider and a connecting shaft, the side of the electrode moving slide rail is fixedly connected with the connecting shaft, the other end of the connecting shaft is fixedly connected with the electrode fixing slider, and the electrode sheet is mounted on the electrode fixing slider.

[0017] Preferably, the lower end of the movable frame extends outside the electrode moving slide rail, a non-elastic traction rope is fixedly connected to the inner side of the dust cover, and the other end of the non-elastic traction rope is fixedly connected to the lower end of the movable frame.

[0018] Preferably, a positioning frame is fixedly connected to the side of the top of the electrode movable slide rail away from the bracket, and a second guide wheel is movably installed on the positioning frame. The inelastic traction rope passes around the second guide wheel. During the opening process of the dust cover, the inelastic traction rope will pull the movable frame to move the movable frame in the direction away from the bracket. The second guide wheel guides the inelastic traction rope smoothly. Since the movable frame is connected to the electrode fixed slider through the connecting shaft, the electrode fixed slider can move with the electrode sheet in the direction away from the bracket.

[0019] Preferably, the shift assembly includes a Z-axis shift frame and a directional guide rail, the Z-axis shift frame is fixedly connected to the bottom of the instrument base, a slide groove is provided on the top of the directional guide rail, and the lower end of the Z-axis shift frame is movably connected in the slide groove.

[0020] Preferably, a dual-axis motor is fixedly installed on the Z-axis moving frame, and the two output shafts of the dual-axis motor are fixedly connected to the forward gear, the side wall of the slide slot is provided with a groove, and the inner bottom wall of the groove is fixedly installed with a toothed track, and the forward gear is meshed with the toothed track.

[0021] Preferably, an installation opening is opened at the bottom end of the Z-axis moving frame, and a roller shaft is fixedly installed in the installation opening, a rolling wheel is rotatably installed on the roller shaft, and the lower end of the rolling wheel contacts the bottom of the slide groove, and the two output shafts of the dual-axis motor drive the two forward gears to rotate, and then the forward gears move along the tooth track, and the Z-axis moving frame slides in the slide groove, and the rolling wheel rolls along the bottom of the slide groove to ensure that the Z-axis moving frame moves steadily and smoothly.

[0022] In view of this, compared with the prior art, the beneficial effects of the present invention are:

[0023] (i) In the present application, when the treatment instrument is not in use, the two dust-proof covers are folded together to prevent dust and protect the treatment instrument and the electrode sheet, making them easy to store, thereby ensuring their long-term cleanliness and reducing the maintenance cycle.

[0024] (ii) In the present application, when the therapeutic instrument is used, the control stepper motor is turned on, so that the control stepper motor drives the double-threaded advancement screw to rotate, and the two inner slide seats thereon slide along the horizontal guide rail, and the two inner slide seats move toward each other, and under the meshing transmission of the No. 1 rack and the swing gear, the swing gear drives the rotating shaft to rotate, and the rotating shaft on the left side rotates counterclockwise, and the rotating shaft on the right side rotates clockwise, so that the two dust-proof covers are unfolded and swung, thereby releasing the protection of the therapeutic instrument and achieving the purpose of automatically exposing the therapeutic instrument.

[0025] (III) In the present application, during the opening process of the dust cover, the inelastic traction rope will pull the movable frame to move the movable frame in the direction away from the bracket, and the second guide wheel will smoothly guide the inelastic traction rope. Since the movable frame is connected to the electrode fixing slider through the connecting shaft, the electrode fixing slider can move the electrode sheet in the direction away from the bracket. When the dust cover is fully opened, the electrode sheet moves to the farthest distance from the bracket to facilitate the use of the electrode sheet and the treatment instrument.

[0026] (IV) In the present application, during treatment, a low-frequency electronic pulse current below 1 kHz is used, and the pulse current is passed through human tissue via a cable to cause an electrochemical or electrophysiological reaction in the human body, which is used to excite neuromuscular tissue, regulate human immunity, endocrine system, and nervous system to dredge meridians, improve microcirculation, relieve pain, reduce inflammation, and promote local blood circulation.

[0027] (V) In the present application, when the low-frequency therapeutic device is used, the dual-axis motor is turned on so that the two output shafts of the dual-axis motor drive the two forward gears to rotate, and then the forward gears move along the tooth track, and the Z-axis moving frame slides in the slide groove, and the rolling wheel rolls along the bottom of the slide groove to ensure that the Z-axis moving frame moves steadily and smoothly, thereby moving the instrument base to the position for medical staff to use. When not in use, it is moved away from the medical staff's working area to avoid it occupying the space in the working area. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Shown is a structural cross-sectional view of the low-frequency therapeutic apparatus provided by the present invention;

[0029] Figure 2 Shown Figure 1 Schematic diagram of the local structure in;

[0030] Figure 3 Shown Figure 2 A schematic diagram of one of the movable frames after it moves away from the support;

[0031] Figure 4 Shown is a top view of the connection between the bracket and the electrode moving slide rail;

[0032] Figure 5 Shown Figure 1 Schematic diagram of the local structure in;

[0033] Figure 6 Shown Figure 1 Schematic diagram of the local structure in;

[0034] Figure 7 Shown is a side view of the Z-axis moving frame;

[0035] Figure 8 Shown is a schematic diagram of the three-dimensional structure of the directional guide rail.

[0036] icon:

[0037] 1-treatment instrument; 101-bracket; 102-electrode moving slide rail; 103-electrode fixing slide block; 104-traction cable; 105-movable frame; 106-first guide wheel; 107-positioning frame; 108-second guide wheel; 109-connecting shaft;

[0038] 2-Electrode sheet;

[0039] 3-Instrument base; 301-Mounting notch; 302-Rotating shaft; 303-Swing gear; 304-Inner slide seat; 305-No. 1 rack; 306-Horizontal guide rod; 307-Sheath spring; 308-Double-threaded propulsion screw; 309-Control stepping motor;

[0040] 4-dust protection cover; 401-non-elastic traction rope;

[0041] 5-Z-axis moving frame; 501-dual-axis motor; 502-forward gear; 503-roller shaft; 504-rolling wheel;

[0042] 6-directional guide rail; 601-groove; 602-tooth track. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-8 , the present invention provides the following embodiments:

[0045] A low-frequency therapeutic instrument comprises a therapeutic instrument 1, an electrode sheet 2, a dustproof shield 4 and an instrument base 3. A bracket 101 is fixedly installed at the center of the top of the instrument base 3, and the therapeutic instrument 1 is installed at the upper end of the bracket 101. The therapeutic instrument 1 is a low-frequency therapeutic instrument. A traction cable 104 is fixedly connected to the lower end of the therapeutic instrument 1, and the other end of the traction cable 104 is fixedly connected to the electrode sheet 2. Two symmetrically arranged mounting notches 301 are provided on the top of the instrument base 3. Rotating shafts 302 are rotatably installed in the two mounting notches 301. The dustproof shield 4 is fixedly installed on the rotating shaft 302, and the adjacent sides of the two dustproof shields 4 are in contact and fit with each other. The therapeutic instrument 1 is located in a space formed by the dustproof shield 4 and the instrument base 3.

[0046] An opening and closing control component, which is used to drive the rotating shaft 302 to rotate a certain angle;

[0047] A driving component, which is used in conjunction with an opening and closing control component;

[0048] A combing component, the combing component is used to smooth the traction cable 104;

[0049] The unfolding moving component is used to drive the electrode sheet 2 to move, and the unfolding moving component is used in conjunction with the combing component and the opening and closing control component;

[0050] The shifting assembly is used to drive the instrument base 3 to move.

[0051] Specifically, the opening and closing control component includes a swing gear 303, a movable cavity, an inner slide seat 304, and a No. 1 rack 305. The swing gears 303 are fixedly installed on the two rotating shafts 302. Two movable cavities are opened in the instrument base 3, and the movable cavities are communicated with the installation slot 301. An inner slide seat 304 is slidably connected in each movable cavity. The top of the inner slide seat 304 is fixedly connected with the No. 1 rack 305, and the No. 1 rack 305 is meshed with the swing gear 303. The moving directions of the two inner slide seats 304 are opposite.

[0052] Specifically, the driving assembly includes a horizontal guide rod 306, a sleeve spring 307, a double-threaded advancing screw rod 308, and a control stepping motor 309. The horizontal guide rod 306 is fixedly installed in the two active cavities. The two inner slide seats 304 are respectively slidably installed on the two horizontal guide rods 306. The control stepping motor 309 is fixedly installed on the outer side of the instrument base 3. The double-threaded advancing screw rod 308 is rotatably installed between the two active cavities. The output end of the control stepping motor 309 is fixedly connected to the output end of the double-threaded advancing screw rod 308. The threads on the parts of the double-threaded advancing screw rod 308 located in the two active cavities have opposite rotation directions. The two inner slide seats 304 are The thread is installed on the double-thread advancement screw 308, and a sleeve spring 307 is fixedly connected between the inner slide seat 304 and the inner wall of the movable chamber, and the horizontal guide rod 306 passes through the sleeve spring 307. The stepping motor 309 is controlled to drive the double-thread advancement screw 308 to rotate, and the two inner slide seats 304 thereon will slide along the horizontal guide rod 306, and the two inner slide seats 304 move toward each other. Under the meshing transmission of the No. 1 rack 305 and the swing gear 303, the swing gear 303 drives the rotating shaft 302 to rotate, and the rotating shaft 302 on the left side rotates counterclockwise, and the rotating shaft 302 on the right side rotates clockwise, so that the two dust shields 4 can unfold and swing.

[0053] Specifically, the combing component includes an electrode movable slide rail 102, a slide hole, a movable frame 105, and a first guide wheel 106. Two horizontally arranged electrode movable slide rails 102 are fixedly installed on the surface of the bracket 101. A slide hole is opened on the electrode movable slide rail 102, and a movable frame 105 is installed in the slide hole for limited sliding. The first guide wheel 106 is movably installed on the upper end of the movable frame 105, and the traction cable 104 passes around the first guide wheel 106.

[0054] Specifically, the unfolding moving assembly includes an electrode fixing slider 103 and a connecting shaft 109. The side of the electrode moving slide rail 102 is fixedly connected with the connecting shaft 109. The other end of the connecting shaft 109 is fixedly connected with the electrode fixing slider 103. The electrode sheet 2 is mounted on the electrode fixing slider 103. The lower end of the movable frame 105 extends to the outside of the electrode moving slide rail 102. The inner side of the dust cover 4 is fixedly connected with a non-elastic traction rope 401, and the other end of the non-elastic traction rope 401 is fixedly connected to the lower end of the movable frame 105. The top of the electrode moving slide rail 102 is fixedly connected to the side away from the bracket 101. A positioning frame 107 is fixedly connected, and a second guide wheel 108 is movably installed on the positioning frame 107. The inelastic traction rope 401 passes around the second guide wheel 108. During the opening of the dust cover 4, the inelastic traction rope 401 will pull the movable frame 105 to move the movable frame 105 away from the bracket 101. The second guide wheel 108 guides the inelastic traction rope 401 smoothly. Since the movable frame 105 is connected to the electrode fixing slider 103 through the connecting shaft 109, the electrode fixing slider 103 can move with the electrode sheet 2 in the direction away from the bracket 101.

[0055] Specifically, the shift assembly includes a Z-axis shift frame 5 and a directional guide rail 6. The Z-axis shift frame 5 is fixedly connected to the bottom of the instrument base 3. A slide groove is provided on the top of the directional guide rail 6. The lower end of the Z-axis shift frame 5 is movably connected in the slide groove. A dual-axis motor 501 is fixedly installed on the Z-axis shift frame 5, and the two output shafts of the dual-axis motor 501 are fixedly connected to a forward gear 502. A groove 601 is provided on the side wall of the slide groove, and a toothed track 602 is fixedly installed on the inner bottom wall of the groove 601. The forward gear 502 and the toothed track 602 is engaged, and an installation opening is opened at the bottom end of the Z-axis moving frame 5, and a roller shaft 503 is fixedly installed in the installation opening, and a rolling wheel 504 is rotatably installed on the roller shaft 503, and the lower end of the rolling wheel 504 contacts the bottom of the slide groove, and the two output shafts of the dual-axis motor 501 drive the two forward gears 502 to rotate, and then the forward gear 502 moves along the tooth track 602, and the Z-axis moving frame 5 slides in the slide groove, and the rolling wheel 504 rolls along the bottom of the slide groove to ensure that the Z-axis moving frame 5 moves steadily and smoothly.

[0056] The specific implementation of this embodiment is as follows: when using the treatment instrument, the control stepper motor 309 is turned on, so that the control stepper motor 309 drives the double-threaded advancement screw 308 to rotate, and the two inner slide seats 304 thereon slide along the horizontal guide rod 306, and the two inner slide seats 304 move toward each other, and under the meshing transmission of the No. 1 rack 305 and the swing gear 303, the swing gear 303 drives the rotating shaft 302 to rotate, and the rotating shaft 302 on the left rotates counterclockwise, and the rotating shaft 302 on the right rotates clockwise, so that the two dustproof shields 4 are unfolded and swung, thereby releasing the protection of the treatment instrument 1, and then the treatment instrument 1 and the electrode sheet 2 can be used to treat the patient;

[0057] During the opening process of the dust cover 4, the inelastic traction rope 401 will pull the movable frame 105 to move the movable frame 105 in a direction away from the support 101, and the second guide wheel 108 will guide the inelastic traction rope 401 smoothly. Since the movable frame 105 is connected to the electrode fixing slider 103 through the connecting shaft 109, the electrode fixing slider 103 can move the electrode sheet 2 in a direction away from the support 101. When the dust cover 4 is fully opened, the electrode sheet 2 moves to the farthest point from the support 101, so as to facilitate the use of the electrode sheet 2 and the treatment instrument 1;

[0058] During treatment, low-frequency electronic pulse current below 1kHz is used to flow through human tissues through cables, causing electrochemical or electrophysiological reactions in the human body. It is used to excite neuromuscular tissues, regulate human immunity, endocrine system, dredge meridians in the nervous system, improve microcirculation, relieve pain, reduce inflammation, and promote local blood circulation.

[0059] When the treatment device is not in use, the two dust-proof covers 4 are closed together to prevent dust and protect the treatment device 1 and the electrode sheet 2, thereby ensuring their long-term cleanliness and reducing the maintenance cycle;

[0060] When the low-frequency therapeutic device is used, the dual-axis motor 501 is turned on, so that the two output shafts of the dual-axis motor 501 drive the two forward gears 502 to rotate, and then the forward gears 502 move along the tooth track 602, and the Z-axis moving frame 5 slides in the slide groove, and the rolling wheel 504 rolls along the bottom of the slide groove to ensure that the Z-axis moving frame 5 moves steadily and smoothly, thereby moving the instrument base 3 to the position for medical staff to use. When not in use, it is moved away from the medical staff's working area to avoid it occupying the space in the working area.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A low-frequency therapeutic apparatus, characterized in that: The apparatus comprises a therapeutic instrument (1), an electrode sheet (2), a dustproof cover (4) and an instrument base (3); a bracket (101) is fixedly mounted at the center of the top of the instrument base (3), and the therapeutic instrument (1) is mounted on the upper end of the bracket (101); the therapeutic instrument (1) is a low-frequency therapeutic instrument; a traction cable (104) is fixedly connected to the lower end of the therapeutic instrument (1), and the other end of the traction cable (104) is fixedly connected to the electrode sheet (2); two symmetrically arranged mounting notches (301) are provided on the top of the instrument base (3); a rotating shaft (302) is rotatably mounted in each of the two mounting notches (301); the dustproof cover (4) is fixedly mounted on the rotating shaft (302), and the adjacent sides of the two dustproof covers (4) are in contact and fit with each other; the therapeutic instrument (1) is located in a space formed by the dustproof cover (4) and the instrument base (3); An opening and closing control component, the opening and closing control component is used to drive the rotating shaft (302) to rotate a certain angle; A driving assembly, the driving assembly is used in conjunction with an opening and closing control assembly; A combing assembly, the combing assembly being used to smooth out the traction cable (104); An unfolding moving component, the unfolding moving component is used to drive the electrode sheet (2) to move, and the unfolding moving component is used in conjunction with the combing component and the opening and closing control component; A displacement component is used to drive the instrument base (3) to move.

2. A low-frequency therapeutic apparatus according to claim 1, characterized in that: The opening and closing control assembly comprises a swing gear (303), a movable cavity, an inner slide seat (304), and a first rack (305). The two rotating shafts (302) are fixedly mounted with a swing gear (303). Two movable cavities are provided in the instrument base (3), and the movable cavities are communicated with the mounting slot (301). An inner slide seat (304) is slidably connected in each of the movable cavities. The top of the inner slide seat (304) is fixedly connected with a first rack (305), and the first rack (305) is meshed with the swing gear (303). The moving directions of the two inner slide seats (304) are opposite.

3. A low-frequency therapeutic apparatus according to claim 2, characterized in that: The driving assembly comprises a horizontal guide rod (306), a sleeve spring (307), a double-threaded propulsion screw (308), and a control stepping motor (309). The two movable chambers are fixedly installed with a horizontal guide rod (306). The two inner slide seats (304) are respectively slidably installed on the two horizontal guide rods (306). The outer side of the instrument base (3) is fixedly installed with a control stepping motor (309). The double-threaded propulsion screw (308) is rotatably installed between the two movable chambers. The output end of the control stepping motor (309) is fixedly connected to the output end of the double-threaded propulsion screw (308). The threads of the double-threaded propulsion screw (308) located in the two movable chambers have opposite rotation directions. The two inner slide seats (304) are both threadedly installed on the double-threaded propulsion screw (308). The sleeve spring (307) is fixedly connected between the inner slide seat (304) and the inner wall of the movable chamber, and the horizontal guide rod (306) passes through the sleeve spring (307).

4. A low-frequency therapeutic apparatus according to claim 3, characterized in that: The combing assembly comprises an electrode movable slide rail (102), a slide hole, a movable frame (105), and a first guide wheel (106); two horizontally arranged electrode movable slide rails (102) are fixedly mounted on the surface of the bracket (101); a slide hole is provided on the electrode movable slide rail (102), and a movable frame (105) is slidably mounted in the slide hole; a first guide wheel (106) is movably mounted on the upper end of the movable frame (105), and the traction cable (104) passes around the first guide wheel (106).

5. A low-frequency therapeutic apparatus according to claim 4, characterized in that: The unfolding moving component comprises an electrode fixing slider (103) and a connecting shaft (109); the side of the electrode moving slide rail (102) is fixedly connected to the connecting shaft (109); the other end of the connecting shaft (109) is fixedly connected to the electrode fixing slider (103); and the electrode sheet (2) is mounted on the electrode fixing slider (103).

6. A low-frequency therapeutic apparatus according to claim 5, characterized in that: The lower end of the movable frame (105) extends outside the electrode moving slide rail (102), the inner side of the dustproof shield (4) is fixedly connected with a non-elastic traction rope (401), and the other end of the non-elastic traction rope (401) is fixedly connected to the lower end of the movable frame (105).

7. A low-frequency therapeutic apparatus according to claim 6, characterized in that: A positioning frame (107) is fixedly connected to the top of the electrode moving slide rail (102) on one side away from the bracket (101), and a second guide wheel (108) is movably mounted on the positioning frame (107), and the non-elastic traction rope (401) passes around the second guide wheel (108).

8. A low-frequency therapeutic apparatus according to claim 7, characterized in that: The displacement assembly comprises a Z-axis shifting frame (5) and a directional guide rail (6); the Z-axis shifting frame (5) is fixedly connected to the bottom of the instrument base (3); a slide groove is provided on the top of the directional guide rail (6); and the lower end of the Z-axis shifting frame (5) is movably connected in the slide groove.

9. A low-frequency therapeutic apparatus according to claim 8, characterized in that: A dual-axis motor (501) is fixedly mounted on the Z-axis moving frame (5), and both output shafts of the dual-axis motor (501) are fixedly connected to a forward gear (502), a groove (601) is formed on the side wall of the slideway, and a toothed track (602) is fixedly mounted on the inner bottom wall of the groove (601), and the forward gear (502) meshes with the toothed track (602).

10. A low-frequency therapeutic apparatus according to claim 9, characterized in that: The bottom end of the Z-axis moving frame (5) is provided with an installation opening, and a roller shaft (503) is fixedly installed in the installation opening. A rolling wheel (504) is rotatably installed on the roller shaft (503), and the lower end of the rolling wheel (504) contacts the bottom of the slide groove.

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