Knee joint physical therapy device

Abstract

The invention relates to the technical field of joint nursing equipment, and discloses a knee joint physiotherapy instrument, a nursing device comprises a nursing box, two bag type massage assemblies, a piston type air guide assembly, a rotational flow stirring assembly and a driving part, the two bag type massage assemblies are arranged in the nursing box and used for being worn on a knee joint, and the piston type air guide assembly is arranged in the nursing box; the bag type massage assembly comprises an elastic rope connected with the inner wall of one end of the nursing box; the two piston type air guide assemblies are installed on the two sides of the nursing box respectively. Multi-dimensional nursing of the rheumatic knee joint is achieved by combining traditional Chinese medicine liquid soaking and massage, the traditional Chinese medicine liquid can permeate through skin and exert warming and pharmacological effects, dispel wind, eliminate dampness, relax tendons and activate collaterals, massage of the bag type massage assembly can promote blood circulation around the knee joint and relieve muscular tension, and the traditional Chinese medicine liquid and the bag type massage assembly act synergistically, so that the rheumatic knee joint can be effectively massaged. The defects of a single massage or hot compress nursing means are overcome, the pathological state of the knee joint can be improved more comprehensively, and the nursing effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of joint care equipment, and in particular to a knee joint physiotherapy device. Background Art

[0002] Rheumatoid arthritis is an autoimmune disease characterized by chronic, inflammatory, and symmetrical joint lesions. The disease mainly affects the synovial membrane of the joints, resulting in persistent inflammatory reactions within the joints, which in turn triggers the destruction of articular cartilage and bone, ultimately leading to joint deformity and loss of function. In the clinical manifestations of rheumatoid arthritis, the knee joint is one of the most commonly affected joints. As the largest weight-bearing joint in the human body, the knee joint has a complex structure, including the femur, tibia, patella and the surrounding ligaments, cartilage, and synovium. The effects of rheumatoid arthritis on the knee joint are mainly manifested in the following aspects: First, synovial inflammation can lead to increased exudate in the joint cavity, causing joint swelling and effusion. Patients often feel localized increased temperature and obvious pain in the knee joint, which is aggravated by activities or weight bearing. Second, the inflammatory reaction can gradually erode the articular cartilage and bone, leading to narrowing of the joint space, osteoporosis, and even bone hyperplasia and joint deformity, seriously affecting the mobility and function of the knee joint and reducing the patient's quality of life.

[0003] For the care of rheumatic knee joints, knee joint massage is currently the most commonly used care method in clinical practice. By massaging the knee joint, blood circulation around the knee joint is promoted and muscle tension is relieved. In addition, using a hot water bag to keep the knee joint warm is also one of the commonly used care measures. Hot compresses dilate local blood vessels and promote blood circulation. The above two methods are relatively simple care methods for knee joint care. Although massage can promote blood circulation around the knee joint, relieve muscle tension and reduce joint pressure, thereby relieving pain and stiffness, this method relies on professional operation, has high labor costs, and is difficult to achieve continuous care. Although hot compresses with hot water bags can dilate local blood vessels and promote blood circulation through thermal effects, their range of action is limited to the local knee joint, making it difficult to provide comprehensive care for the soft tissues around the joint, and the care effect is limited.

[0004] In order to solve the above problems, this application proposes a knee joint physiotherapy device. Summary of the Invention

[0005] The present invention proposes a knee joint physiotherapy device, which solves the problem in the related art that knee joint massage and hot water bag hot compress care have limited effects, rely on professional operation, and are difficult to provide continuous care.

[0006] The present invention proposes a knee joint physiotherapy device, comprising a nursing box, a bladder massage component, a piston-type air guide component, a swirl stirring component and a driving component:

[0007] The two bladder massage assemblies are both arranged in a nursing box for wearing to the knee joint, and the bladder massage assemblies include an elastic rope connected to the inner wall of one end of the nursing box;

[0008] The two piston-type air guide assemblies are respectively installed on both sides of the nursing box, and the two piston-type air guide assemblies are respectively connected to the two bladder-type massage assemblies. The swirl stirring assembly is arranged at the other end of the nursing box. The driving member is used to drive the piston-type air guide assembly to move back and forth and drive the swirl stirring assembly to operate; when the piston-type air guide assembly moves back and forth, the gas in the piston-type air guide assembly reciprocates in and out of the bladder massage assembly to make the bladder massage assembly expand and contract.

[0009] As a further optimization scheme of the present invention, the bladder massage component also includes an air bag tube, one end of the elastic rope is connected to the outer periphery of the air bag tube, and the other end is connected to the inner wall of one end of the nursing box, the inner wall of the air bag tube is connected with densely arranged protrusions, and the air bag tube is connected with a spiral hose, and the two spiral hoses are respectively connected to two piston-type air guide components, and an opening is integrally formed on the adjacent side of the two air bag tubes, and a rope-type tie is installed at the opening position of the air bag tube.

[0010] As a further optimization solution of the present invention, the rope-type tie includes two fixed blocks, which are symmetrically installed at the opening positions of the airbag tube. A through tie interface is opened in the fixed block, and a tether is connected to the fixed block.

[0011] As a further optimization scheme of the present invention, the piston-type air guide assembly includes an air cylinder, and assembly blocks are installed on both sides of the nursing box. A through mounting hole is opened in the assembly block, and one end of the two air cylinders is respectively installed in the two mounting holes. An elastic piston member is installed in the air cylinder, and a rack is installed at one end of the elastic piston member, and the rack is driven by a driving member to push the elastic piston member to move in the air cylinder. An air hole is opened at one end of the air cylinder, and an air guide pipe is connected to the other end. The two air guide pipes are respectively connected to two spiral hoses.

[0012] As a further optimization scheme of the present invention, the elastic piston member includes a piston body, which is slidably arranged in the air cylinder, a connecting rod is installed at one end of the piston body, and one end of the connecting rod slides through one end of the air cylinder, one end of the rack is connected to one end of the connecting rod, a spring is sleeved on the connecting rod, and the two ends of the spring are respectively connected to one end of the piston body and the inner wall of one end of the air cylinder.

[0013] As a further optimized solution of the present invention, the swirl stirring assembly includes a flow-through member and two swirl members, the flow-through member is connected between the two swirl members, and the swirl members are driven to operate by a driving member.

[0014] As a further optimization scheme of the present invention, the swirl part includes a swirl box, a shaft and a blade. The two swirl boxes are symmetrically installed at one end of the nursing box. The two shafts are respectively arranged in the two swirl boxes. The adjacent ends of the two shafts are installed with blades arranged toward the flow-through part. The two shafts are rotatably connected to the inner walls on both sides of the nursing box at the ends away from each other, and the shafts are driven to rotate by the driving member.

[0015] As a further optimized solution of the present invention, the flow member includes a flow box, which is installed between two swirl boxes. The outer side of the flow box is provided with flow holes arranged in an array.

[0016] As a further optimization solution of the present invention, the driving member includes a motor, a half gear and a mounting block. Mounting blocks are installed on both sides of the nursing box. The two mounting blocks are respectively located above the two racks. Motors are installed at the bottom of the two mounting blocks. The output ends of the two motors are connected to half gears. The two half gears are respectively engaged with the two racks. The ends of the two shafts away from each other are respectively connected to the axis of the two half gears.

[0017] When the motor drives the half gear to rotate, the rack pushes the elastic piston to move in the air cylinder to guide the gas into the air bag cylinder. When the gear block of the half gear rotates to the upper part, the elastic piston, under the action of its own elastic force, causes the rack to return to its original position and mesh with the half gear, forming a reciprocating cycle.

[0018] As a further optimization solution of the present invention, the inner wall of the nursing box is provided with a transversely arranged installation groove, a heating rod is installed in the installation groove, the bottom of the nursing box is connected to a drain pipe, and a valve body is installed on the drain pipe.

[0019] The above technical solution of the present invention has the following beneficial technical effects:

[0020] 1. The present invention pours a Chinese medicine liquid for treating rheumatoid arthritis into a nursing box, and the patient stands in the nursing box with the Chinese medicine liquid covering the patient's knees. Then, two bladder massage components are respectively sleeved on the two knee positions of the human leg, and the piston-type air guide component is driven to move back and forth by a driving member, so that the gas in the piston-type air guide component reciprocates in and out of the bladder massage component, and the bladder massage component then expands and contracts. The bladder massage component massages the knee during expansion and contraction. By combining immersion in Chinese medicine liquid with massage, multi-dimensional care for rheumatic knee joints is achieved. The Chinese medicine liquid can penetrate through the skin and exert its warming and pharmacological effects, dispelling wind and dampness, relaxing muscles and tendons, while the massage of the bladder massage component can promote blood circulation around the knee joint and relieve muscle tension. The synergistic effect of the two not only makes up for the shortcomings of single massage or hot compress nursing methods, but also can more comprehensively improve the pathological state of the knee joint and enhance the nursing effect.

[0021] 2. The present invention drives the piston-type air guide assembly to move back and forth through the driving member, which can also drive the swirl stirring assembly to operate. When the swirl stirring assembly is in operation, it can stir the traditional Chinese medicine liquid at the bottom of the nursing box. Stirring the traditional Chinese medicine liquid can make the active ingredients in the liquid medicine more evenly distributed, avoid inconsistent efficacy due to precipitation or stratification, ensure that the liquid medicine is always in the best state during use, and improve the treatment effect;

[0022] 3. The present invention uses the elastic rope provided on the bladder massage component, so that patients can perform leg-lifting exercises in the nursing box. Since the elastic rope is elastic, it can provide patients with moderate resistance, helping to enhance the strength of the muscles around the knee joint and the stability of the joint. At the same time, the wrapping and protective effect of the bladder massage component on the knee, as well as the immersion environment of the traditional Chinese medicine liquid, provide patients with safe rehabilitation exercise conditions, avoid joint injuries caused by improper exercise, and further promote the recovery of knee joint function. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a knee joint physiotherapy device proposed in the present invention.

[0024] Figure 2 This is a top view of a knee joint therapy device proposed by the present invention.

[0025] Figure 3 It is a schematic structural diagram of the bladder massage component, piston air guide component and swirl stirring component of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the bladder massage component of the present invention.

[0027] Figure 5 For the present invention Figure 4 Overall top view.

[0028] Figure 6 It is a structural schematic diagram of the bladder massage component of the present invention.

[0029] Figure 7 For the present invention Figure 6 A magnified view of center.

[0030] Figure 8 Schematic diagram of the structure of the piston type gas guide assembly of the present invention.

[0031] Figure 9 It is a structural schematic diagram of the elastic piston member of the present invention.

[0032] Figure 10 It is a structural schematic diagram of the swirl stirring component of the present invention.

[0033] Figure 11 For the present invention Figure 10Magnified view of B.

[0034] Figure markings: 1. Care box; 101. Assembly block; 102. Heating rod; 103. Drain pipe; 2. Bladder massage assembly; 21. Elastic rope; 22. Air bag tube; 23. Protrusion; 24. Spiral hose; 25. Opening; 26. Rope tie; 261. Fixing block; 262. Tie interface; 263. Tether; 3. Piston-type air guide assembly; 31. Air cylinder; 32. Elastic piston member; 321. Piston body; 322. Connecting rod; 323. Spring; 33. Rack; 34. Air guide tube; 35. Air hole; 4. Swirl stirring assembly; 41. Flow member; 411. Flow box; 412. Flow hole; 42. Swirl member; 421. Swirl box; 422. Shaft; 423. Paddle; 5. Driving member; 51. Motor; 52. Half gear; 53. Mounting block. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0036] like Figure 1-11 As shown, the present invention proposes a knee joint physiotherapy device, comprising a nursing box 1, a bladder massage component 2, a piston-type air guide component 3, a swirl stirring component 4 and a driving component 5:

[0037] The two bladder massage components 2 are both arranged in the nursing box 1 and are used to be worn on the knee joint. The bladder massage components 2 include an elastic rope 21 connected to the inner wall of one end of the nursing box 1;

[0038] The two piston-type air guide components 3 are respectively installed on both sides of the nursing box 1, and the two piston-type air guide components 3 are respectively connected to the two bladder-type massage components 2. The swirl stirring component 4 is arranged at the other end of the nursing box 1. The driving component 5 is used to drive the piston-type air guide component 3 to move back and forth and drive the swirl stirring component 4 to operate; when the piston-type air guide component 3 moves back and forth, the gas in the piston-type air guide component 3 reciprocates in and out of the bladder-type massage component 2 to make the bladder-type massage component 2 expand and contract.

[0039] After the driving member 5 is started, the piston-type air guide component 3 is driven to move back and forth on both sides of the care box 1 through mechanical transmission. The gas in the piston-type air guide component 3 enters the two bag-type massage components 2 through the air guide tube 34, causing it to expand and contract periodically, thereby performing dynamic massage on the knee joint. At the same time, the driving member 5 synchronously drives the swirl stirring component 4 to operate, generating a swirl of the traditional Chinese medicine liquid in the care box 1, thereby promoting uniform distribution of the medicine liquid.

[0040] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, in this embodiment, the bladder massage component 2 also includes an air bag tube 22, one end of the elastic rope 21 is connected to the outer periphery of the air bag tube 22, and the other end is connected to the inner wall of one end of the nursing box 1, and the inner wall of the air bag tube 22 is connected with densely arranged protrusions 23. The air bag tube 22 is connected with a spiral hose 24, and the two spiral hoses 24 are respectively connected with the two piston-type air guide components 3. An opening 25 is integrally formed on the adjacent side of the two air bag tubes 22, and a rope-type tie 26 is installed at the position of the opening 25 of the air bag tube 22.

[0041] When the airbag tube 22 is inflated, the densely arranged protrusions 23 on the inner wall directly contact the knee joint, enhancing the massage stimulation effect. The elastic rope 21 connects the airbag tube 22 and the nursing box 1, providing elastic resistance when the patient lifts his legs, assisting rehabilitation exercises. The spiral hose 24 serves as a gas channel, transferring the airflow of the piston-type air guide assembly 3 to the airbag tube 22 and providing space for the movement of the airbag tube 22.

[0042] like Figure 6 and Figure 7 As shown, in this embodiment, the rope tie 26 includes two fixed blocks 261, which are symmetrically installed at the opening 25 of the airbag tube 22. A through tie interface 262 is opened in the fixed block 261, and a tether 263 is connected to the fixed block 261.

[0043] The opening 25 of the airbag tube 22 can be tightened and fixed to the knee joint by passing the tether 263 through the tether port 262 of the fixing block 261, and the rope tie 26 ensures that the massage assembly is stably fitted.

[0044] like Figure 1 and Figure 8 As shown, in this embodiment, the piston-type air guide assembly 3 includes an air cylinder 31, and assembly blocks 101 are installed on both sides of the nursing box 1. A through mounting hole is opened in the assembly block 101, and one end of the two air cylinders 31 is respectively installed in the two mounting holes. An elastic piston member 32 is installed in the air cylinder 31, and a rack 33 is installed at one end of the elastic piston member 32. The rack 33 is driven by the driving member 5 to push the elastic piston member 32 to move in the air cylinder 31. An air hole 35 is opened at one end of the air cylinder 31, and an air guide pipe 34 is connected to the other end. The two air guide pipes 34 are respectively connected to the two spiral hoses 24.

[0045] The motor 51 drives the half gear 52 to rotate, and after engaging with the rack 33, it pushes the elastic piston 32 to move in the air cylinder 31. The piston body 321 compresses the air in the air cylinder 31 and injects it into the air bag tube 22 through the air guide tube 34. The air hole 35 is used to balance the air pressure inside and outside the air cylinder 31 to ensure smooth piston movement.

[0046] like Figure 8 and Figure 9 As shown, in this embodiment, the elastic piston member 32 includes a piston body 321, which is slidably arranged in the air cylinder 31, and a connecting rod 322 is installed at one end of the piston body 321, and one end of the connecting rod 322 slides through one end of the air cylinder 31, one end of the rack 33 is connected to one end of the connecting rod 322, and a spring 323 is sleeved on the connecting rod 322, and the two ends of the spring 323 are respectively connected to one end of the piston body 321 and the inner wall of one end of the air cylinder 31.

[0047] The spring 323 is sleeved on the connecting rod 322. When the half gear 52 is disengaged from the rack 33, the spring 323 elastic force drives the piston body 321 to reset, so that the rack 33 is re-engaged with the half gear 52. This design realizes the automatic reciprocating motion of the piston type air guide component 3.

[0048] like Figure 1 、 Figure 10 and Figure 11 As shown, in this embodiment, the swirl stirring assembly 4 includes a flow member 41 and two swirl members 42. The flow member 41 is connected between the two swirl members 42, and the swirl member 42 is driven to operate by the driving member 5; the swirl member 42 includes a swirl box 421, a shaft 422 and a paddle 423. The two swirl boxes 421 are symmetrically installed at one end of the nursing box 1, and the two shafts 422 are respectively arranged in the two swirl boxes 421. The adjacent ends of the two shafts 422 are each installed with a paddle 423 arranged toward the flow member 41. The two shafts 422 are rotatably connected to the inner walls of both sides of the nursing box 1 at the ends away from each other, and the shafts 422 are driven to rotate by the driving member 5; the flow member 41 includes a flow box 411, which is installed between the two swirl boxes 421. The outer side of the flow box 411 is provided with flow holes 412 arranged in an array.

[0049] The driving member 5 drives the shaft 422 to rotate, and the paddles 423 stir the liquid medicine in the swirl box 421 to form a high-speed swirl. The swirl box 421 cooperates with the flow-through member 41 to discharge the liquid medicine from the flow-through hole 412 outside the flow-through box 411, stirring the liquid medicine to prevent the components in the liquid medicine from settling.

[0050] like Figure 1 、 Figure 8 and Figure 11 As shown, in this embodiment, the driving member 5 includes a motor 51, a half gear 52 and a mounting block 53. The mounting blocks 53 are installed on both sides of the nursing box 1. The two mounting blocks 53 are respectively located above the two racks 33. The bottoms of the two mounting blocks 53 are respectively installed with motors 51. The output ends of the two motors 51 are connected to the half gears 52. The two half gears 52 are respectively engaged with the two racks 33. The two shafts 422 are connected to the axis of the two half gears 52 at their ends away from each other.

[0051] When the motor 51 drives the half gear 52 to rotate, the rack 33 pushes the elastic piston 32 to move in the air cylinder 31 to guide the gas into the airbag tube 22. When the tooth block of the half gear 52 rotates to the upper part, the elastic piston 32, under the action of its own elastic force, causes the rack 33 to return to its original position and mesh with the half gear 52, forming a reciprocating cycle.

[0052] The motor 51 drives the half gear 52 to rotate, pushing the elastic piston 32 through the rack 33 to compress the gas into the airbag tube 22. When the gear block of the half gear 52 disengages from the rack 33, the spring 323 resets and drives the rack 33 back, realizing a periodic inflation and deflation cycle. At the same time, the half gear 52 synchronously drives the shaft 422 to rotate, and the swirl stirring component 4 works in conjunction.

[0053] like Figure 1 As shown, in this embodiment, a transversely arranged installation groove is opened on the inner wall of the nursing box 1, a heating rod 102 is installed in the installation groove, a drain pipe 103 is connected to the bottom of the nursing box 1, and a valve body is installed on the drain pipe 103; the heating rod 102 is embedded in the inner wall of the nursing box 1 to heat the Chinese medicine liquid at a constant temperature to maintain the treatment temperature, the drain pipe 103 is used to discharge the used medicine liquid, and the valve body controls the drainage speed, which is convenient for cleaning the nursing box 1.

[0054] The specific working principle of the present invention is as follows:

[0055] The nursing box 1 is filled with warm Chinese medicine liquid, and the temperature is maintained within the treatment range by the heating rod 102. The patient stands in the nursing box 1 with the knee joint immersed in the medicine liquid. The bladder massage component 2 is fixed to the knee joint by the rope tie 26. The tether 263 passes through the tie port 262 of the fixing block 261 and tightens the opening 25 of the airbag tube 22.

[0056] After the driving member 5 is started, the motor 51 drives the half gear 52 to rotate. The half gear 52 meshes with the rack 33, pushing the elastic piston 32 to move in the air cylinder 31. The piston body 321 compresses the air in the air cylinder 31. The gas is injected into the air bag tube 22 through the air guide tube 34 and the spiral hose 24, causing it to expand. The inner wall protrusion 23 produces a squeeze massage on the knee joint. When the tooth block of the half gear 52 disengages from the rack 33, the spring 323 elastic force drives the piston body 321 to return, and the air bag tube 22 deflates and contracts, completing one massage cycle. This process continues reciprocatingly to achieve dynamic massage.

[0057] The driving member 5 drives the swirl stirring assembly 4 synchronously via the shaft 422. The paddle 423 rotates at high speed in the swirl box 421, generating a directional water flow. The water flows through the flow holes 412 of the flow member 41 to form a fine swirl. The swirl flushes the knee joint and the bottom of the nursing box 1, promoting the uniform distribution of the liquid medicine, preventing the precipitation of the active ingredients, and enhancing the contact area between the liquid medicine and the skin and the penetration efficiency.

[0058] When the patient performs leg-lifting exercises in the nursing box 1, the elastic resistance of the elastic rope 21 can specifically exercise the muscles around the knee joint and improve joint stability. The wrapping of the airbag tube 22 and the warm environment of the traditional Chinese medicine liquid provide cushioning protection for exercise, reducing the risk of sports injuries. The temperature is maintained by the heating rod 102, and the effective ingredients of the medicine liquid penetrate through the skin to exert the pharmacological effects of dispelling wind and dampness, and relaxing muscles and tendons;

[0059] The device integrates Chinese medicine hot compress, mechanical massage, medicine circulation and rehabilitation exercises, breaking through the limitations of the traditional single care model, realizing multi-dimensional care for rheumatic knee joints, and improving treatment efficiency and patient rehabilitation experience.

[0060] It should be understood that the above-described specific embodiments of the present invention are merely illustrative or illustrative of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the scope of protection of the present invention. In addition, the appended claims are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A knee joint physiotherapy device, characterized in that: It comprises a nursing box (1), a bladder-type massage component (2), a piston-type air guide component (3), a swirl stirring component (4) and a driving component (5): The two bladder massage assemblies (2) are both arranged in the nursing box (1) and are used to be worn on the knee joint. The bladder massage assemblies (2) include an elastic rope (21) connected to the inner wall of one end of the nursing box (1); The two piston-type air guide assemblies (3) are respectively installed on both sides of the nursing box (1), and the two piston-type air guide assemblies (3) are respectively connected to the two bladder-type massage assemblies (2). The swirl stirring assembly (4) is arranged at the other end of the nursing box (1). The driving member (5) is used to drive the piston-type air guide assembly (3) to move back and forth and drive the swirl stirring assembly (4) to operate; when the piston-type air guide assembly (3) moves back and forth, the gas in the piston-type air guide assembly (3) reciprocates in and out of the bladder-type massage assembly (2), so that the bladder-type massage assembly (2) performs expansion and contraction movements.

2. A knee joint physiotherapy device according to claim 1, characterized in that: The bladder massage assembly (2) further comprises an airbag tube (22), one end of the elastic rope (21) is connected to the outer periphery of the airbag tube (22), and the other end is connected to the inner wall of one end of the nursing box (1), the inner wall of the airbag tube (22) is connected with densely arranged protrusions (23), the airbag tube (22) is connected with a spiral hose (24), the two spiral hoses (24) are respectively connected with two piston-type air guide assemblies (3), an opening (25) is integrally formed on the adjacent side of the two airbag tubes (22), and a rope-type tie (26) is installed at the position of the opening (25) of the airbag tube (22).

3. A knee joint physiotherapy device according to claim 2, characterized in that: The rope-type tie (26) comprises two fixing blocks (261), which are symmetrically mounted at the opening (25) of the airbag tube (22). A through tie interface (262) is provided in the fixing block (261), and a tether (263) is connected to the fixing block (261).

4. A knee joint physiotherapy device according to claim 3, characterized in that: The piston-type air guide assembly (3) includes an air cylinder (31), and an assembly block (101) is installed on both sides of the nursing box (1). A through installation hole is provided in the assembly block (101), and one end of the two air cylinders (31) is respectively installed in the two installation holes. An elastic piston member (32) is installed in the air cylinder (31), and a rack (33) is installed at one end of the elastic piston member (32), and the rack (33) is driven by the driving member (5) to push the elastic piston member (32) to move in the air cylinder (31). An air hole (35) is provided at one end of the air cylinder (31), and an air guide pipe (34) is connected to the other end. The two air guide pipes (34) are respectively connected to two spiral hoses (24).

5. A knee joint physiotherapy device according to claim 4, characterized in that: The elastic piston member (32) includes a piston body (321), the piston body (321) is slidably arranged in the air cylinder (31), a connecting rod (322) is installed at one end of the piston body (321), and one end of the connecting rod (322) slides through one end of the air cylinder (31), one end of the rack (33) is connected to one end of the connecting rod (322), a spring (323) is sleeved on the connecting rod (322), and the two ends of the spring (323) are respectively connected to one end of the piston body (321) and the inner wall of one end of the air cylinder (31).

6. A knee joint physiotherapy device according to claim 5, characterized in that: The swirl stirring assembly (4) comprises a flow-through member (41) and two swirl members (42); the flow-through member (41) is connected between the two swirl members (42); and the swirl members (42) are driven to operate by a driving member (5).

7. A knee joint physiotherapy device according to claim 6, characterized in that: The swirl member (42) includes a swirl box (421), a shaft (422) and a paddle (423). The two swirl boxes (421) are symmetrically installed at one end of the nursing box (1). The two shafts (422) are respectively arranged in the two swirl boxes (421). The adjacent ends of the two shafts (422) are each installed with a paddle (423) arranged toward the flow member (41). The ends of the two shafts (422) are respectively connected to the inner walls on both sides of the nursing box (1) at a distance from each other, and the shafts (422) are driven to rotate by the driving member (5).

8. A knee joint physiotherapy device according to claim 7, characterized in that: The flow member (41) comprises a flow box (411), which is installed between two swirl boxes (421). The outer side of the flow box (411) is provided with flow holes (412) arranged in an array.

9. A knee joint physiotherapy device according to claim 8, characterized in that: The driving member (5) includes a motor (51), a half gear (52) and a mounting block (53). The two sides of the nursing box (1) are respectively installed with mounting blocks (53). The two mounting blocks (53) are respectively located above the two racks (33). The bottoms of the two mounting blocks (53) are respectively installed with motors (51). The output ends of the two motors (51) are connected to half gears (52). The two half gears (52) are respectively engaged with the two racks (33). The two shafts (422) are respectively connected to the axis of the two half gears (52) at one end away from each other. When the motor (51) drives the half gear (52) to rotate, the rack (33) pushes the elastic piston (32) to move in the air cylinder (31) to guide the gas into the air bag tube (22). When the tooth block of the half gear (52) rotates to the upper part, the elastic piston (32) returns to its original position under the action of its own elastic force and meshes with the half gear (52), forming a reciprocating cycle.

10. A knee joint physiotherapy device according to claim 9, characterized in that: The inner wall of the nursing box (1) is provided with a transversely arranged installation groove, in which a heating rod (102) is installed. The bottom of the nursing box (1) is connected to a drain pipe (103), and a valve body is installed on the drain pipe (103).

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