Lower limb vortex hydrotherapy device

Abstract

The invention relates to a lower limb vortex hydrotherapy device which comprises a bathtub and a rotational flow generating device installed in the bathtub, a pedal plate and a floating plate used for installing the rotational flow generating device are arranged in the bathtub, the pedal plate and the floating plate are arranged up and down, and an elastic supporting piece connected with the pedal plate and the floating plate is arranged between the pedal plate and the floating plate; the pedal plate and the floating plate are in sliding connection with the bathtub and can slide in the height direction of the bathtub. Under the cooperation of the pedal plate, the elastic supporting piece and the floating plate, a user can enable the horizontal position of the floating plate to rise under the thrust of the elastic supporting piece through different degrees of treading, so that the horizontal height of the rotational flow generating device in the bathtub is increased, and the influence of the water pressure in the bathtub is smaller; meanwhile, the distance between the pedal plate and the floating plate is shortened, then the influence degree of water rotational flow on the lower limbs of the user is adjusted, meanwhile, the rotational flow generating device moves upwards, the amount of water needing to be stirred is reduced, and the rotational flow generating effect is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a lower limb whirlpool hydrotherapy device. Background Art

[0002] Hydrotherapy utilizes water of varying temperatures, pressures, and solute contents to act on the human body in various ways to prevent and treat illness. Hydrotherapy can be categorized by method of use, including immersion baths, showers, jet baths, whirlpool baths, and bubble baths. Whirlpool baths utilize the various physical properties of water, creating a vortex to increase its fluidity and enhance mechanical or chemical stimulation.

[0003] A whirlpool bath usually requires a specially designed bathtub and a vortex generator. The vortex generator is installed at the bottom of the bathtub, and a certain amount of water is added to the bathtub so that the user can immerse their lower limbs in the bathtub. The vortex generator is then activated to cause the water in the bathtub to form a vortex, thus achieving the effect of a whirlpool bath.

[0004] The existing swirl generating device includes a nozzle group composed of multiple nozzles, which spray water at a certain speed and direction to form a strong water flow, thereby pushing and stirring the water in the bathtub through the power of the water flow sprayed from the nozzles.

[0005] Since the user's lower limbs need to be soaked, a large amount of water is required in the bathtub to form a certain depth for soaking the user's lower limbs. However, the vortex generating device is installed at the bottom of the bathtub. Since the vortex generating device is located at the bottom of the bathtub, if the water in the bathtub needs to generate a vortex, the water in the entire bathtub must be stirred by the vortex generating device. At this time, the vortex generating device is subjected to the maximum water pressure in the bathtub. Under the influence of the water pressure, the water flow sprayed by the nozzle will be subject to the maximum resistance in the bathtub and the required energy and power are relatively large. When the power and energy of the nozzle are constant, it is not easy to adjust according to users with different degrees of hydrotherapy needs. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a lower limb whirlpool hydrotherapy device to solve the problem that during the process of hydrotherapy of the user's lower limbs through a bathtub, the vortex generating device is easily affected by the water pressure in the bathtub, causing the vortex formed by the nozzle at different depths in the bathtub to be different, and the existing hydrotherapy device is not easy to adjust according to users with different degrees of hydrotherapy needs.

[0007] The present invention is achieved through the following technical solutions:

[0008] A lower limb whirlpool hydrotherapy device, comprising a bathtub and a swirl generating device mounted in the bathtub, characterized in that: a foot pedal and a floating board for mounting the swirl generating device are provided in the bathtub, the foot pedal and the floating board being arranged one above the other, and an elastic support member connected to the foot pedal and the floating board is provided between the foot pedal and the floating board;

[0009] The foot pedal and the floating board are both slidably connected to the bathtub, and the foot pedal and the floating board can slide along the height direction of the bathtub.

[0010] It is further defined that the swirl generating device includes a plurality of first nozzles, the plurality of first nozzles are evenly distributed around the center point of the floating plate as the axis, and the plurality of first nozzles are respectively inclined in a clockwise direction.

[0011] It is further defined that the pedals are arranged in two groups relative to each other, and each group includes a front section, a middle section and a rear section. The front section and the rear section are respectively slidably connected to the two opposite ends of the middle section. The front section and the rear section can move relatively away from or closer to each other by sliding. The middle section is provided with a driving member for driving the front section and the rear section.

[0012] It is further defined that the driving member includes a first rack and a second rack connected to the front section and the rear section respectively, and a gear, the first rack and the second rack extending in opposite directions, and the first rack and the second rack meshing with the top surface and the bottom surface of the gear respectively;

[0013] The gear is coaxially connected to a ratchet, and the ratchet is rotatably mounted on one side of the middle section. The middle section is rotatably connected to a latch tooth via a first torsion spring, and one end of the latch tooth is plugged into the outer surface of the ratchet.

[0014] It is further defined that support bars for supporting the foot are provided in the front section, the middle section and the rear section, and gaps are formed between the plurality of support bars;

[0015] The front section, middle section and rear section are each provided with a second nozzle with the output end facing upward, and the output of the second nozzle is directed toward the gap. The middle section is also provided with a second pump connected to the second nozzle, and a connecting hose is provided between the second pump and the second nozzle.

[0016] It is further defined that a seat cushion and a medicine bag bin are respectively provided at the opposite ends of the bathtub, the top surface and bottom surface of the medicine bag bin respectively penetrate the top surface and inner wall of the bathtub, and a filter plate is provided in the center of the medicine bag bin, and the filter holes and upper and lower ends on the filter plate are respectively facing the top surface and bottom surface of the medicine bag bin.

[0017] It is further defined that a third nozzle with a horizontal height higher than the top surface of the filter plate is provided on the side wall of the medicine bag bin, the output of the third nozzle is directed toward the inner cavity of the medicine bag bin, and the input end of the third nozzle is connected to the inside of the bathtub.

[0018] It is further defined that a circulation groove is provided on the side wall of the lower end of the bathtub, a filter is provided at the connecting port between the circulation groove and the bathtub, a third pump is provided in the circulation groove, a connecting pipe is provided between the third pump and the third nozzle, and both ends of the connecting pipe are respectively connected to the third pump.

[0019] It is further defined that a cover is provided at the upper end of the medicine bag bin, the cover covers the medicine bag bin, one end of the cover is rotatably connected to the medicine bag bin, and the top surface of the medicine bag bin can be opened or closed by rotating the cover.

[0020] It is further defined that a bubble generator with output toward the bathtub is provided at the connection between the medicine bag warehouse and the bathtub, and the input end of the bubble generator is connected to the medicine bag warehouse.

[0021] The beneficial effects of the present invention are:

[0022] During the hydrotherapy of the user using the lower limb whirlpool hydrotherapy device of the present application, the user can step on the float board to different degrees under the thrust of the elastic support member to raise the horizontal position of the float board, thereby raising the height of the vortex generating device in the bathtub, reducing the influence of the water pressure in the bathtub, and shortening the distance between the foot pedal and the float board, thereby adjusting the degree of influence of the water vortex on the user's lower limbs.

[0023] Since the floating plate drives the vortex generating device to move upward, the distance between the vortex generating device and the horizontal plane of the water in the bathtub is shortened after the vortex generating device moves, so the amount of water that the vortex generating device needs to push and stir is reduced, thereby reducing the energy consumption of the vortex generating device.

[0024] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 Schematic diagram of the internal structure of the bathtub of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the foot pedal of the present invention;

[0028] Figure 4 Schematic diagram of the connection between the foot pedal and the driving member of the present invention.

[0029] In the picture:

[0030] 1. Bathtub; 2. Foot pedal; 201. Front section; 202. Middle section; 203. Back section; 3. Floating board; 301. Elastic support member; 4. First nozzle; 5. Driving member; 501. First rack; 502. Second rack; 503. Gear; 6. Ratchet; 601. Gear; 7. Support bar; 701. Second nozzle; 8. Cushion; 801. Medicine bag compartment; 8011. Filter plate; 9. Third nozzle; 10. Filter screen; 11. Cover plate; 12. Bubble generator. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0034] In the above description of the present invention, it should be noted that the terms "one side," "the other side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0035] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0036] See also Figure 1-4The present invention provides a technical solution: a lower limb whirlpool hydrotherapy device, comprising a bathtub 1 and a swirl generating device installed in the bathtub 1, wherein the bathtub 1 is provided with a foot pedal 2 and a floating board 3 for mounting the swirl generating device, wherein the foot pedal 2 and the floating board 3 are arranged vertically, and an elastic support member 301 is provided between the foot pedal 2 and the floating board 3 and connected to the two respectively;

[0037] The foot pedal 2 and the floating board 3 are both slidably connected to the bathtub 1 , and the foot pedal 2 and the floating board 3 can slide along the height direction of the bathtub 1 .

[0038] In this solution, the footrest 2 and the floating board 3 can present the following states under the action of the elastic support member 301:

[0039] State 1: The elastic support member 301 is naturally extended, and the entire device is not affected by external factors. At this time, the elastic force of the elastic support member 301 is equal to the buoyancy of the water in the bathtub 1 on the floating board 3. In this state, the footrest 2 and the floating board 3 are in a relatively static state.

[0040] State 2: The user steps down on the footrest 2. Under the pressure generated by the stepping, the footrest 2 moves downward and squeezes the elastic support member 301, causing the elastic support member 301 to compress and deform and elastically store energy. At this time, the floating board 3 is pushed upward by the elastic support member 301. The thrust is greater than the buoyancy, causing the floating board 3 to move upward, thereby driving the swirl generating device to move synchronously in the same direction, thereby shortening the distance between the floating board 3 and the footrest 2.

[0041] State 3: The user lifts his foot and releases the pedal 2. The elastic support member 301 loses its pressure and releases its stored elastic potential energy. At this time, the elastic force increases after being compressed and becomes greater than the buoyancy. Therefore, the end of the elastic support member 301 pushes the pedal 2 and the floating board 3 upward and downward respectively to reset. The distance between the two increases compared to state 2.

[0042] The specific usage and working principle are as follows:

[0043] Step 1: Add water to the bathtub 1 and make the water level at least higher than the elastic support member 301;

[0044] Step 2: At this time, the foot pedal 2 and the floating board 3 are in state 1. The user places his foot on the foot pedal 2 and applies downward pressure to the foot pedal 2 by stepping on it, causing the foot pedal 2 to move downward.

[0045] In step three, when the foot pedal 2 moves downward, the foot pedal 2 and the floating board 3 are in state two under the pressure generated by stepping on. At this time, the foot pedal 2 squeezes the elastic support member 301, and the thrust generated by the contraction of the elastic support member 301 pushes the floating board 3 to move upward, that is, while raising the horizontal height of the floating board 3, the distance between the floating board 3 and the foot pedal 2 is shortened, thereby reducing the influence of the water pressure on the vortex generating device on the floating board 3. At the same time, since the distance between the foot pedal 2 and the vortex generating device is shortened, the influence of the vortex generated by the vortex generating device on the user's lower limbs will be increased.

[0046] In step four, when the user thinks that the rotation flow of the lower limbs is too large, the user can release the pressure on the foot pedal 2 by lifting the foot to different degrees. At this time, the foot pedal 2 and the floating board 3 are in state three, and the elastic support 301 releases the elastic force to move the foot pedal 2 and the floating board 3 relatively apart, that is, the horizontal position of the floating board 3 drops, and at the same time the distance between the floating board 3 and the foot pedal 2 increases. Combined with step three, the degree of influence of the water vortex on the user's lower limbs can be effectively adjusted according to the different levels of hydrotherapy needs of users.

[0047] Among them, an air cavity is provided in the floating board 3, and a valve port communicating with the air cavity is also provided on the outer wall of the floating board 3. The air cavity can be inflated through the valve port by an inflation device to achieve the effect of floating the floating board 3 in the water;

[0048] An output valve is provided on one side of the bathtub 1 , and the water in the bathtub 1 can be discharged by opening and closing the output valve.

[0049] In summary, during the hydrotherapy of the user using the lower limb whirlpool hydrotherapy device of the present application, the user can adjust the level of the vortex generating device by stepping on it to different degrees, thereby adjusting the degree of influence of the water vortex on the user's lower limbs, with the cooperation of the foot pedal 2, the elastic support member 301 and the floating board 3.

[0050] At the same time, since the floating plate 3 drives the vortex generating device to move upward, the distance between the vortex generating device and the horizontal plane of the water in the bathtub is shortened after the vortex generating device moves, so the amount of water that the vortex generating device needs to push and stir is reduced, thereby reducing the energy consumption of the vortex generating device.

[0051] In this embodiment, the swirl generating device includes a plurality of first nozzles 4 , which are evenly distributed around the center point of the floating plate 3 as an axis, and the plurality of first nozzles 4 are tilted in a clockwise direction.

[0052] In this solution, the output end of the first nozzle 4 is directed toward the direction above the top surface of the floating plate 3, and the input end is connected to a first pump. The water in the bathtub 1 can be extracted and transported to the first nozzle 4 for spraying by starting the first pump, and the first nozzle 4 is pressurized to prompt the first nozzle 4 to spray the water transported by the first pump. Since multiple first nozzles 4 are evenly distributed around the center point of the floating plate 3 as the axis, the water sprayed by the multiple first nozzles 4 forms a vortex in the bathtub 1, and the water in the bathtub 1 is circulated and pumped by the first pump.

[0053] In this embodiment, the foot pedals 2 are arranged in two groups relative to each other, and both include a front section 201201, a middle section 202 and a rear section 203. The front section 201 and the rear section 203 are respectively slidably connected to the opposite ends of the middle section 202. The front section 201 and the rear section 203 can move relatively away from or closer by sliding. The middle section 202 is provided with a driving member 5 for driving the front section 201 and the rear section 203.

[0054] In this solution, the user steps on the two foot pedals 2 with both feet respectively. Due to the sliding cooperation between the front section 201 and the rear section 203 and the middle section 202, the user can drive the front section 201 and the rear section 203 to slide in a relatively away or closer direction through the driving member 5, thereby adjusting the overall length of the foot pedal 2 to adapt to the size of the feet of different users.

[0055] In this embodiment, the driving member 5 includes a first rack 501 and a second rack 502 connected to the front section 201 and the rear section 203, and a gear 503. The first rack 501 and the second rack 502 extend in opposite directions, and the first rack 501 and the second rack 502 are respectively engaged with the top surface and the bottom surface of the gear 503.

[0056] The gear 503 is coaxially connected to the ratchet 6 , which is rotatably mounted on one side of the middle section 202 . The middle section 202 is rotatably connected to a latch 601 via a first torsion spring, and one end of the latch 601 is inserted into the outer surface of the ratchet 6 .

[0057] The end of the latching tooth 601 away from the ratchet 6 is rotationally connected to the middle section 202 via a first torsion spring. Under the elastic force of the first torsion spring, the end of the latching tooth 601 closer to the ratchet 6 is driven by the first torsion spring to always abut against the surface of the ratchet 6, thereby limiting the rotation direction of the ratchet 6 so that the ratchet 6 can only rotate clockwise. At this time, the gear 503 also rotates clockwise, thereby driving the two racks to move in opposite directions, thereby forcing the front section 201 and the rear section 203 to move closer together, thereby shortening the overall length of the footrest 2. Conversely, when the ratchet 6 rotates counterclockwise, the gear 503 also rotates counterclockwise, thereby driving the first rack 501 and the second rack 502 to move in opposite directions, thereby forcing the front section 201 and the rear section 203 to move away from each other, thereby increasing the overall length of the footrest 2.

[0058] The ratchet 6 is restricted in its rotation direction by the latching teeth 601 , so that when the latching teeth 601 abut against the surface of the ratchet 6 , the ratchet 6 can only rotate in the clockwise direction, thereby causing the gear 503 to also rotate in the clockwise direction.

[0059] In this embodiment, the user can use one hand to move the latch 601 away from the ratchet 6, and the ratchet 6 can then rotate counterclockwise. At this point, the user can pull either the front section 201 or the rear section 203 to move it away from the middle section 202. During this movement, the first rack 501 or the second rack 502 drives the gear 503 to rotate. Since the second rack 502 and the first rack 501 respectively mesh with the top and bottom surfaces of the gear 503, the rotation of the gear 503 drives the second rack 502 or the first rack 501 to move, thereby driving the front section 201 and the rear section 203 to move simultaneously.

[0060] In this embodiment, support bars 7 for supporting the foot are provided in the front section 201, the middle section 202 and the rear section 203, and gaps are formed between the plurality of support bars 7;

[0061] The front section 201, the middle section 202 and the rear section 203 are all provided with a second nozzle 701 with the output end facing upward, and the output of the second nozzle 701 is directed toward the gap. The middle section 202 is also provided with a second pump connected to the second nozzle 701, and a connecting hose is provided between the second pump and the second nozzle 701.

[0062] In this solution, the support bar 7 supports the user's foot, allowing the user to step on the foot pedal 2. When stepping on the pedal, the foot is located above the gap and the second nozzle 701, and the trajectory of the water sprayed by the second nozzle 701 can pass through the gap and contact the sole of the user's foot, so that the water sprayed by the second nozzle 701 can impact the acupuncture points on the sole of the user's foot.

[0063] When the front section 201 and the rear section 203 are relatively stretched, causing the foot pedal 2 to grow as a whole, part of the second nozzle 701 and the support bar 7 will also move synchronously to adapt to the position of the acupuncture points on the sole of the user's foot.

[0064] In this embodiment, a seat cushion 8 and a medicine bag bin 801 are respectively provided at the opposite ends of the bathtub 1. The top surface and bottom surface of the medicine bag bin 801 respectively penetrate the top surface and inner wall of the bathtub 1. A filter plate 8011 is provided in the center of the medicine bag bin 801. The filter holes and the upper and lower ends of the filter plate 8011 are respectively facing the top surface and bottom surface of the medicine bag bin 801.

[0065] The filter plate 8011 separates the medicine bag compartment 801 into a first chamber and a second chamber adjacent to each other. The first chamber is used to accommodate the medicine bag, and the second chamber is used to receive the medicine filtered by the filter plate 8011.

[0066] In this solution, first, the user places the medicine bag for hydrotherapy into the medicine bag compartment 801 so that the medicine bag is located on the filter plate 8011. Then, water is added to cover the medicine bag, and the medicine bag is soaked in water to mix the medicinal properties in the medicine bag into the water. The water mixed with the medicine passes through the filter plate 8011 and the second chamber into the bathtub 1, thereby improving the hydrotherapy effect.

[0067] In this embodiment, a third nozzle 9 with a horizontal height higher than the top surface of the filter plate 8011 is opened on the side wall of the medicine bag warehouse 801, and the output of the third nozzle 9 is directed toward the inner cavity of the medicine bag warehouse 801, and the input end of the third nozzle 9 is connected to the interior of the bathtub 1.

[0068] In this solution, first, the medicine bag is placed in the medicine bag bin 801. At this time, the medicine bag is located on one side of the output end of the third nozzle 9. By starting the third nozzle 9 and pressurizing the third nozzle 9, the third nozzle 9 is prompted to spray water toward the direction of the medicine bag. The impact force of the water sprayed by the third nozzle 9 can further facilitate the mixing of the medicinal properties in the medicine bag and water.

[0069] In this embodiment, a circulation groove is provided on the side wall of the lower end of the bathtub 1, and a filter 10 is provided at the connection port between the circulation groove and the bathtub 1. A third pump is provided in the circulation groove, and a connecting pipe is provided between the third pump and the third nozzle 9, and both ends of the connecting pipe are respectively connected to the third pump.

[0070] In this solution, the water in the bathtub 1 is sprayed upward under the action of the first nozzle 4, thereby forming an upward thrust, and then most of the medicines in the bathtub 1 are pushed upward. The medicines mixed in the water can be filtered through the setting of the filter element. Therefore, when the third pump machine extracts the water in the bathtub 1, it can more effectively extract water without mixed medicines or with less mixed medicines, so that the third nozzle 9 can spray it out and better mix it with the medicines in the medicine bag.

[0071] In this embodiment, a cover plate 11 is provided at the upper end of the medicine bag bin 801, and the cover plate 11 covers the medicine bag bin 801. One end of the cover plate 11 is rotatably connected to the medicine bag bin 801, and the top surface of the medicine bag bin 801 can be opened or closed by rotating the cover plate 11.

[0072] A second torsion spring is provided at the connection between the cover plate 11 and the medicine bag compartment 801. Under the elastic force of the second torsion spring, the cover plate 11 is always located on the medicine bag compartment 801 in a closed state when in a natural state.

[0073] In this solution, when placing a medicine pack into medicine pack compartment 801 or replacing or removing a medicine pack from medicine pack compartment 801, the user first pulls upward to open medicine pack compartment 801. At this point, the second torsion spring is squeezed by cover plate 11, elastically storing energy. In this state, the user processes the medicine pack. After processing the medicine pack, the user releases cover plate 11, causing it to close under the elastic force of the second torsion spring. With an interference fit, cover plate 11 compresses the top surface of the medicine pack, compressing the medicine in the medicine pack. This allows the water sprayed from third nozzle 9 to more effectively mix with the medicine.

[0074] In this embodiment, a bubble generator 12 with output toward the bathtub 1 is provided at the connection between the medicine bag bin 801 and the bathtub 1 , and the input end of the bubble generator 12 is connected to the medicine bag bin 801 .

[0075] In this solution, the connection between the medicine bag bin 801 and the bathtub 1 constitutes a holding tank equipped with a bubble generator 12. After the water and the medicine bag are mixed, they enter the holding tank through the filter 10. By starting the bubble generator 12, part of the water in the holding tank is sprayed into the bathtub 1 in a mixed manner with bubbles. When bubbles are generated in the bathtub 1, they will impact various acupuncture points on the soles of the feet and the calves. This physical stimulation helps to promote blood circulation. At the same time, the massage effect of the bubbles can also help relax the foot muscles and relieve foot fatigue.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A whirlpool hydrotherapy device for lower limbs, comprising a bathtub (1) and a vortex generating device installed in the bathtub (1), characterized in that: The bathtub (1) is provided with a foot pedal (2) and a floating plate (3) for mounting a swirl generating device, the foot pedal (2) and the floating plate (3) being arranged vertically, and an elastic support member (301) respectively connected to the foot pedal (2) and the floating plate (3) being provided between the foot pedal (2) and the floating plate (3); The foot pedal (2) and the floating board (3) are both slidably connected to the bathtub (1), and the foot pedal (2) and the floating board (3) can both slide along the height direction of the bathtub (1).

2. The lower limb whirlpool hydrotherapy device according to claim 1, characterized in that: The swirl generating device comprises a plurality of first nozzles (4), the plurality of first nozzles (4) being evenly distributed around the center point of the floating plate (3) as an axis, and the plurality of first nozzles (4) being inclined in a clockwise direction respectively.

3. The whirlpool hydrotherapy device for lower limbs according to claim 1, characterized in that: The foot pedals (2) are arranged in two groups relative to each other, and each group includes a front section (201), a middle section (202) and a rear section (203). The front section (201) and the rear section (203) are respectively connected to the two opposite ends of the middle section (202) in a sliding manner. The front section (201) and the rear section (203) can move away from or closer to each other by sliding. The middle section (202) is provided with a driving member (5) for driving the front section (201) and the rear section (203).

4. The lower limb whirlpool hydrotherapy device according to claim 3, characterized in that: The driving member (5) comprises a first rack (501) and a second rack (502) connected to the front section (201) and the rear section (203) respectively, and a gear (503); the first rack (501) and the second rack (502) extend in opposite directions; the first rack (501) and the second rack (502) are respectively engaged with the top surface and the bottom surface of the gear (503); The gear (503) is coaxially connected to a ratchet (6), and the ratchet (6) is rotatably mounted on one side of the middle section (202). The middle section (202) is rotatably connected to a latch tooth (601) via a first torsion spring, and one end of the latch tooth (601) is plugged into the outer surface of the ratchet (6).

5. The lower limb whirlpool hydrotherapy device according to claim 3, characterized in that: Support bars (7) for supporting the foot are provided in the front section (201), the middle section (202) and the rear section (203), and gaps are formed between the plurality of support bars (7); The front section (201), the middle section (202) and the rear section (203) are all provided with a second nozzle (701) with an output end facing upwards, and the output of the second nozzle (701) is directed towards the gap. The middle section (202) is also provided with a second pump connected to the second nozzle (701), and a connecting hose is provided between the second pump and the second nozzle (701).

6. The whirlpool hydrotherapy device for lower limbs according to claim 1, characterized in that: The bathtub (1) is provided with a seat cushion (8) and a medicine bag bin (801) at opposite ends, respectively. The top surface and bottom surface of the medicine bag bin (801) respectively pass through the top surface and inner wall of the bathtub (1). The medicine bag bin (801) is provided with a filter plate (8011) located in the center, and the filter holes and upper and lower ends on the filter plate (8011) are respectively facing the top surface and bottom surface of the medicine bag bin (801).

7. The whirlpool hydrotherapy device for lower limbs according to claim 6, characterized in that: A third nozzle (9) having a horizontal height higher than the top surface of the filter plate (8011) is provided on the side wall of the medicine bag bin (801), and the output of the third nozzle (9) is directed toward the inner cavity of the medicine bag bin (801), and the input end of the third nozzle (9) is connected to the interior of the bathtub (1).

8. The whirlpool hydrotherapy device for lower limbs according to claim 6, characterized in that: A circulation groove is provided on the side wall of the lower end of the bathtub (1), a filter screen (10) is provided at the connection port between the circulation groove and the bathtub (1), a third pump is provided in the circulation groove, a connecting pipe is provided between the third pump and the third nozzle (9), and both ends of the connecting pipe are respectively connected to the third pump.

9. The lower limb whirlpool hydrotherapy device according to claim 7, characterized in that: A cover plate (11) is provided at the upper end of the medicine bag bin (801), and the cover plate (11) covers the medicine bag bin (801). One end of the cover plate (11) is rotatably connected to the medicine bag bin (801), and the top surface of the medicine bag bin (801) can be opened or closed by rotating the cover plate (11).

10. The whirlpool hydrotherapy device for lower limbs according to claim 6, characterized in that: A bubble generator (12) with output toward the bathtub (1) is provided at the connection between the medicine bag bin (801) and the bathtub (1), and the input end of the bubble generator (12) is connected to the medicine bag bin (801).

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