Portable local liquid nitrogen physiotherapy equipment

Abstract

The portable local liquid nitrogen physiotherapy equipment comprises a liquid nitrogen supply cavity, a liquid liquid nitrogen elimination cavity and a liquid nitrogen volatilization release cavity which are sequentially arranged from top to bottom, and further comprises a physiotherapy cylinder, a clamping mechanism and a deep physiotherapy mechanism; the physical therapy cylinder is a cylindrical cylinder with two open ends, the physical therapy cylinder is in sealed communication with the liquid nitrogen volatilization release cavity through an air inlet hole formed in the center of the cylinder wall of the upper end of the physical therapy cylinder, the two sets of clamping mechanisms are symmetrically arranged and arranged on the two sides of the open ends of the physical therapy cylinder respectively, and the deep physical therapy mechanism is arranged in the physical therapy cylinder; wherein the clamping mechanism, the physical therapy cylinder and the leg part form a closed space, the closed space is a movable and variable space, and the deep physical therapy mechanism is used for completing local deep physical therapy on muscles in the movable and variable space.

Description

Technical Field

[0001] The present invention relates to the technical field of physical therapy equipment, and in particular to a portable local liquid nitrogen physical therapy equipment. Background Art

[0002] Liquid nitrogen physiotherapy is particularly important for athletes' post-match recovery. It can quickly restore athletes' muscles, thereby ensuring that athletes can maintain a high level of athletic ability.

[0003] The existing Chinese patent "CN112472407B A portable local liquid nitrogen physiotherapy device" includes an upper jacket, a lower jacket, an upper hook connecting rod, a lower hook connecting rod and a sealing cushion. The upper jacket and the lower jacket are used to wrap the injured part or muscle part of the athlete in the clamp cavity, and the lower hook connecting rod and the upper hook connecting rod are hooked and fixed to form a fixed closed cavity, forming a low-temperature closed space. The disadvantages of this solution are: The clamping method is fixed, and the upper and lower clamps need to be removed cyclically. At the same time, the muscles cannot move autonomously during the physical therapy process, resulting in poor physical therapy results.

[0004] Therefore, it is necessary to invent a portable local liquid nitrogen therapy device to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a portable local liquid nitrogen physiotherapy device, which solves the problems of low physiotherapy efficiency and insufficient physiotherapy effect.

[0006] The technical solution adopted by the present invention is: comprising a liquid nitrogen supply chamber, a liquid nitrogen elimination chamber and a liquid nitrogen volatilization release chamber arranged in sequence from top to bottom, and also comprising a physiotherapy tube, a clamping mechanism and a deep physiotherapy mechanism; the physiotherapy tube is a cylindrical tube with two ends open, and the physiotherapy tube is sealed and connected with the liquid nitrogen volatilization release chamber through an air inlet hole opened in the center of the tube wall at the upper end thereof, the clamping mechanism is symmetrically configured with two groups, which are respectively arranged on both sides of the open end of the physiotherapy tube, and the deep physiotherapy mechanism is arranged in the physiotherapy tube; The clamping mechanism, the therapy tube and the legs form a closed space, and the closed space is a movable and variable space. The deep therapy mechanism is used to complete local deep therapy of the muscles in the movable and variable space.

[0007] Further, as a preference, the clamping mechanism includes an arc-shaped connecting pad 1, a guide sealing plate, an arc-shaped connecting pad 2, an elastic sealing pad and a hydraulic telescopic column; the arc-shaped connecting pad 1 is arranged in plurality on a circle, one end of the arc-shaped portion is fixed to the open end of the therapy tube, and the other end is sealed and fixed to one end of the guide sealing plate; the guide sealing plate is arranged in a conical shape and has an arc-shaped cross-section; the other end of the guide sealing plate is fixed to the arc-shaped portion of the arc-shaped connecting pad 2; there are plurality of elastic sealing pads arranged in a circle, respectively sealed and connected between two adjacent guide sealing plates, and the elastic sealing pad is also sealed and fixed to the open end of the therapy tube; there are plurality of hydraulic telescopic columns arranged in a circle, and both ends of the hydraulic telescopic column are respectively connected to the therapy tube and the guide sealing plate by ball hinge.

[0008] Further, as a preference, the deep therapy mechanism includes an axial drive component, a circumferential drive component, a vertical drive component and a collaborative therapy component; the axial drive component, the circumferential drive component and the vertical drive component are all arranged in the therapy cylinder, and the collaborative therapy component is arranged in the therapy cylinder.

[0009] Further, preferably, the axial drive assembly, the circumferential drive assembly and the vertical drive assembly all include a servo knob and a bevel gear group; the three servo knobs are distributed circumferentially, are all fixed on one side of the outer wall of the therapy tube, and the extension shaft seal of the servo knob passes through the therapy tube, the input shaft of the bevel gear group is coaxially fixed with the extension shaft of the servo knob, and the output shaft of the bevel gear group is rotatably arranged in the ear in the therapy tube.

[0010] Furthermore, preferably, the axial drive assembly also includes a threaded rod and a guide ring; one end of the threaded rod is fixed to the output end of the bevel gear set, and the other end is rotatably set in the lifting ear, and three through holes are opened on the circumference of the guide ring, one of the through holes is configured as a threaded hole, and the guide ring is threadedly connected to the threaded rod through the threaded hole.

[0011] Further, as a preference, the circumferential drive assembly also includes a rotating rod 1, a peripheral gear and an outer gear ring 1; one end of the rotating rod 1 is fixed to the output end of the bevel gear set, and the other end is rotatably set in the lifting ear, the rotating rod 1 is rotatably set in one of the through holes, a key groove is axially opened on the rotating rod 1, the connecting key of the peripheral gear is slidably set in the key groove, and the extension part of the peripheral gear is provided with a ring 1, which is set and rotatably set in an annular groove 1 of the guide ring, and the annular groove 1 is coaxially arranged with the rotating rod, the outer gear ring 1 is meshed with the peripheral gear, and the extension part of the outer gear ring 1 is provided with a ring 2, which is set and rotatably set in an annular groove 2 of the guide ring, and the annular groove 2 is coaxially arranged with the guide ring.

[0012] Furthermore, as a preference, the vertical drive assembly also includes a rotating rod 2, a spur gear, an outer gear ring 2 and an inner gear ring; the rotating rod 2 is rotatably arranged in one of the through holes, a keyway is axially provided on the rotating rod 2, the connecting key of the spur gear is slidably arranged in the keyway, and the extension portion of the spur gear is provided with a sleeve ring 3, which is rotatably arranged in the annular groove 3 of the guide ring, and the annular groove 3 is coaxially arranged with the rotating rod 2, the outer gear ring 2 is meshed with the spur gear, and the extension portion of the outer gear ring 2 is also provided with a sleeve ring 4, which is rotatably arranged in the annular groove 4 on the side of the outer gear ring 1 away from the guide ring, and the annular groove 4 is coaxially arranged with the guide ring, and the inner gear ring is coaxially fixed on the inner wall of the outer gear ring 2.

[0013] Further, as a preferred embodiment, it is characterized in that the collaborative therapy component includes a gear box, a rotating shaft, a rotating gear 1, a rotating gear 2, a rack, a guide rod, an introduction tube and a massage head; the gear box is fixed on the inner wall of the outer gear ring 1, one end of the rotating shaft is rotatably arranged on the inner wall of the gear box, and the other end passes through the other side wall of the gear box and is arranged outside the gear box, the rotating gear is coaxially fixed to the rotating shaft and is located in the gear box, the rotating gear 2 is coaxially fixed to the rotating shaft and meshes with the inner gear ring, the rack is slidably arranged in the gear box and meshes with the rotating gear 1, the guide rod is fixed to the bottom of the rack, and the other end slides through the gear box, the introduction tube is arranged at the bottom of the guide rod, the introduction tube is connected to the liquid nitrogen volatilization release chamber by a hose, and the massage head is configured as a hollow hemisphere, which is fixed to the bottom of the introduction tube, and a plurality of air outlet holes are provided on the massage head.

[0014] Further, as a preference, a sliding rod is fixed to the upper end of the introduction cylinder, which is slidably arranged in the guide rod, and a return spring is connected between the sliding rod and the guide rod.

[0015] Furthermore, as a preference, it also includes a limit pin, which is detachably arranged in a limit groove between the servo knob and the therapy cylinder in the vertical drive assembly.

[0016] Advantages of the present invention: 1. In the present invention, by using the clamping mechanism, the therapy tube can be moved along the athlete's legs during the therapy process, thereby accelerating the therapy efficiency; at the same time, the athlete can achieve low-temperature deep therapy of the muscles in different states during the knee flexion process, thereby increasing the scope of application of the therapy and improving the therapy effect; 2. In the present invention, by using the deep therapy mechanism and the clamping mechanism together, the massage head can perform corresponding massage methods according to the different feelings of the athletes, thereby further improving the therapy effect on the athletes' legs.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of an axial drive assembly of the present invention; Figure 3 is a schematic diagram of a circumferential drive assembly of the present invention; Figure 4 Schematic diagram of the vertical drive assembly of the present invention Figure 5 It is an enlarged view of point A of the present invention; Figure 6 It is a schematic diagram of the structure distribution of the external gear 1 and the external gear 2 of the present invention; Figure 7 is a cross-sectional schematic diagram of the collaborative physical therapy assembly of the present invention; Figure 8 Schematic diagram of the structure distribution of the first gear and the second gear of the present invention; Fig. 9 is a front cross-sectional view of a guide rod portion of the present invention; Fig.10 It is a partial cross-sectional view of the vertical drive assembly of the present invention.

[0020] Figure numerals: 1, liquid nitrogen supply chamber; 2, liquid nitrogen elimination chamber; 3, liquid nitrogen volatilization release chamber; 4, physical therapy tube; 5, clamping mechanism; 6, deep physical therapy mechanism; 51, arc connection pad 1; 52, guide sealing plate; 53, arc connection pad 2; 54, elastic sealing pad; 55, hydraulic telescopic column; 61, axial drive assembly; 62, circumferential drive assembly; 63, vertical drive assembly; 64, collaborative physical therapy assembly; 65, servo knob; 66, bevel gear set; 611. threaded rod; 612. guide ring; 621. rotating rod 1; 622. peripheral gear; 623. outer gear ring 1; 631. rotating rod 2; 632. spur gear; 633. outer gear ring 2; 634. inner gear ring; 641. gear box; 642. rotating shaft; 643. rotating gear 1; 644. rotating gear 2; 645. rack; 646. guide rod; 647. introduction cylinder; 648. massage head; 649. sliding rod; 650. reset spring; 8. limit pin. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. refer to Figures 1 to 10 A portable local liquid nitrogen therapy device comprises a liquid nitrogen supply chamber 1, a liquid nitrogen elimination chamber 2 and a liquid nitrogen volatilization release chamber 3 which are arranged in sequence from top to bottom; a therapy tube 4, a clamping mechanism 5 and a deep therapy mechanism 6; the therapy tube 4 is a cylindrical tube with two ends open, and the therapy tube 4 is sealed and connected with the liquid nitrogen volatilization release chamber 3 through an air inlet hole opened in the center of the upper end of the tube wall; the clamping mechanism 5 is symmetrically configured with two groups, which are respectively arranged on both sides of the open end of the therapy tube 4, and the deep therapy mechanism 6 is arranged in the therapy tube 4; It needs to be explained that the liquid nitrogen supply chamber 1 can exchange the liquid nitrogen storage tank with the outside world so that the liquid nitrogen can be kept sufficient. The liquid nitrogen can be volatilized in the liquid nitrogen elimination chamber 2 and the liquid nitrogen can be eliminated by the adsorption of water to prevent the liquid nitrogen from contacting the skin.

[0023] Among them, the clamping mechanism 5, the therapy tube 4 and the limb constitute a closed space, and this closed space is a movable and variable space, and the deep therapy mechanism 6 is used to complete local deep therapy of the muscle injury site in the movable and variable space.

[0024] That is, see Figure 1 , the clamping mechanism 5 and the therapy tube 4 can move along the athlete's legs and always remain in a closed state during the movement; Furthermore, the deep therapy mechanism 6 can perform deep therapy on the muscle parts of athletes that are more seriously damaged.

[0025] In the present invention, the clamping mechanism 5 includes an arc-shaped connecting pad 1 51, a guide sealing plate 52, an arc-shaped connecting pad 2 53, an elastic sealing pad 54 and a hydraulic telescopic column 55; the arc-shaped connecting pad 1 51 is arranged in plurality on a circumference, one end of the arc-shaped portion is fixed to the open end of the therapy tube 4, and the other end is sealed and fixed to one end of the guide sealing plate 52; the guide sealing plate 52 is configured as a cone, and the cross-section is an arc; the other end of the guide sealing plate 52 is fixed to the arc-shaped portion of the arc-shaped connecting pad 2 53; a plurality of elastic sealing pads 54 are arranged in a circumference, and are respectively sealed and connected between two adjacent guide sealing plates 52; and the elastic sealing pad 54 is also sealed and fixed to the open end of the therapy tube 4; a plurality of hydraulic telescopic columns 55 are arranged in a circumference, and the two ends of the hydraulic telescopic column 55 are respectively connected to the therapy tube 4 and the guide sealing plate 52 by ball hinge.

[0026] It needs to be explained that when the three guide sealing plates 52 expand or contract at the same time, the elastic sealing pad 54 will expand or contract adaptively, so that the arc-shaped connecting pad 2 53 is always in close contact with the skin, so that no matter where the therapy tube 4 moves on the leg, a closed space can be formed between the clamping mechanisms 5 on both sides and the therapy tube 4 and the leg, so that the different parts formed can achieve the effect of low temperature. Therefore, the low-temperature therapy of the leg can be completed by only pushing the therapy tube 4, thereby speeding up the therapy efficiency.

[0027] In addition, if the therapy tube 4 moves to the knee area, when one guide sealing plate 52 is forced to rotate outward, the remaining guide sealing plates 52 will rotate outward under the resetting action of the hydraulic telescopic column 55, and the corresponding elastic sealing pads 54 will automatically expand or contract, so that the multiple arc-shaped connecting pads 53 can completely wrap the area to form a new closed space. That is to say, in the low-temperature therapy space, the athlete can complete a knee flexion movement at a certain angle. Here, the low-temperature space can perform therapy on the athlete's muscles under different conditions, increase the scope of application of therapy, and thus improve the therapy effect.

[0028] As a preferred embodiment, the deep therapy mechanism 6 includes an axial drive component 61, a circumferential drive component 62, a vertical drive component 63 and a collaborative therapy component 64; the axial drive component 61, the circumferential drive component 62 and the vertical drive component 63 are all arranged in the therapy tube 4, and the collaborative therapy component 64 is arranged in the therapy tube 4.

[0029] Among them, the axial drive component 61, the circumferential drive component 62 and the vertical drive component 63 all include a servo knob 65 and a bevel gear group 66; the three servo knobs 65 are distributed in a circle, and are all fixed on one side of the outer wall of the therapy tube 4, and the extension shaft seal of the servo knob 65 passes through the therapy tube 4, the input shaft of the bevel gear group 66 is coaxially fixed with the extension shaft of the servo knob 65, and the output shaft of the bevel gear group 66 is rotatably set in the ear in the therapy tube 4.

[0030] As a preferred embodiment, the axial drive assembly 61 also includes a threaded rod 611 and a guide ring 612; one end of the threaded rod 611 is fixed to the output end of the bevel gear set 66, and the other end is rotatably set in the lifting ear, and three through holes are opened on the circumference of the guide ring 612, one of which is configured as a threaded hole, and the guide ring 612 is threadedly connected to the threaded rod 611 through the threaded hole.

[0031] That is, see Figure 2 , twist the servo knob 65 in the axial drive assembly 61, which is transmitted through the corresponding bevel gear set 66, so that the threaded rod 611 rotates, thereby driving the guide ring 612 to move axially along the therapy tube 4.

[0032] As a preferred embodiment, the circumferential drive assembly 62 also includes a rotating rod 621, a peripheral gear 622 and an outer gear ring 623; one end of the rotating rod 621 is fixed to the output end of the bevel gear set 66, and the other end is rotatably set in the lifting ear, the rotating rod 621 is rotatably set in one of the through holes, a key groove is axially opened on the rotating rod 621, the connecting key of the peripheral gear 622 is slidably set in the key groove, and the extension part of the peripheral gear 622 is provided with a ring 1, which is set and rotatably set in the annular groove 1 of the guide ring 612, and the annular groove 1 is coaxially set with the rotating rod 623, the outer gear ring 623 is meshed with the peripheral gear 622, and the extension part of the outer gear ring 623 is provided with a ring 2, which is set and rotatably set in the annular groove 2 of the guide ring 612, and the annular groove 2 is coaxially set with the guide ring 612.

[0033] For explanation, see Figure 3 , twist the servo knob 65 in the circumferential drive assembly 62, and transmit the transmission through the corresponding bevel gear set 66 to rotate the circumferential gear 622, thereby driving the outer gear ring 1 623 to rotate circumferentially through meshing.

[0034] As a preferred embodiment, the vertical drive assembly 63 also includes a rotating rod 2 631, a spur gear 632, an outer gear ring 2 633 and an inner gear ring 634; the rotating rod 2 631 is rotatably set in one of the through holes, a keyway is axially provided on the rotating rod 2 631, the connecting key of the spur gear 632 is slidably set in the keyway, and the extension portion of the spur gear 632 is provided with a sleeve ring 3, which is set and rotatably set in the annular groove 3 of the guide ring 612, and the annular groove 3 is coaxially set with the rotating rod 2 631, the outer gear ring 2 633 is meshed with the spur gear 632, and the extension portion of the outer gear ring 2 633 is also provided with a sleeve ring 4, which is set and rotatably set in the annular groove 4 on the side of the outer gear ring 1 623 away from the guide ring 612, and the annular groove 4 is coaxially set with the guide ring 612, and the inner gear ring 634 is coaxially fixed on the inner wall of the outer gear ring 2 633.

[0035] Among them, see Figures 4 to 6 , twist the servo knob 65 of the vertical drive assembly 63, and through the transmission of the corresponding bevel gear set 66, the spur gear 632 rotates, thereby driving the outer gear ring 2 633 and the inner gear ring 634 to rotate synchronously.

[0036] As a preferred embodiment, the collaborative therapy component 64 includes a gear box 641, a rotating shaft 642, a rotating gear 1 643, a rotating gear 2 644, a rack 645, a guide rod 646, an introduction tube 647 and a massage head 648; the gear box 641 is fixed on the inner wall of the outer gear ring 1 623, one end of the rotating shaft 642 is rotatably set on the inner wall of the gear box 641, and the other end passes through the other side wall of the gear box 641 and is set outside the gear box 641, the rotating gear 1 643 is coaxially fixed to the rotating shaft 642 and is located in the gear box 641, and the rotating gear 2 644 is coaxially fixed to the rotating shaft 642 and is located in the gear box 641. The shaft is fixed on the rotating shaft 642 and meshes with the inner gear ring 634. The rack 645 is slidably set in the gear box 641 and meshes with the rotating tooth 1 643. The guide rod 646 is fixed at the bottom of the rack 645, and the other end slides through the gear box 641. The introduction tube 647 is set at the bottom of the guide rod 646. The introduction tube 647 is connected to the liquid nitrogen volatilization release chamber 3 by a hose. The massage head 648 is configured as a hollow hemisphere, which is fixed at the bottom of the introduction tube 647. The massage head 648 is provided with a plurality of air outlet holes.

[0037] For explanation, see Figures 7 and 8 The inner gear ring 634 meshes with the rotating gear 2 644, so that the rotating shaft 642 drives the rotating gear 1 643 to rotate, and the rotating gear 1 643 meshes with the rack 645, thereby driving the introduction tube 647 and the massage head 648 to move vertically through the guide rod 646.

[0038] It should be noted that the introduction tube 647 is directly connected to the liquid nitrogen volatilization release chamber 3 by a hose, and its flow area is small, the wind speed is greater, and the temperature is lower, so that the muscle injury site can be treated with lower temperature physical therapy.

[0039] Specifically, when the therapy cylinder 4 moves along the leg, if the athlete feels that the therapy effect of a certain muscle is not good, the servo knob 65 in the axial drive assembly 61 and the circumferential drive assembly 62 is twisted so that the introduction cylinder 647 can be aligned with the therapy position to complete the deep therapy at a lower temperature; Specifically in one embodiment, when the therapy tube 4 moves to the knee position, if the athlete feels muscle discomfort when the knee flexion angle is 10°~12°, the athlete maintains the current state and quickly adjusts the position of the introduction tube 647 so that the air outlet is aligned with the painful area of ​​the knee muscle to perform deeper therapy at a lower temperature.

[0040] In addition, the vertical drive assembly 63 can enable the massage head 648 to move vertically, so that the massage head 648 can contact the muscle injury site to achieve deep massage therapy; Specifically, when the therapy tube 4 moves along the leg, if the athlete feels that a certain muscle has not achieved the best therapy effect, there are two ways to perform deep massage therapy on the leg: Ⅰ. If the athlete feels pain in a certain muscle group, the servo knob 65 in the vertical drive assembly 63 is twisted separately, so that the massage head 648 can perform a pressing massage therapy on the muscles in that part. By stimulating these acupoints by pressing, the circulation of qi and blood can be regulated, and fatigue and discomfort can be relieved; II. If the athlete feels numbness in a certain muscle group, the servo knob 65 in the axial drive assembly 61 and the vertical drive assembly 63 or the circumferential drive assembly 62 and the vertical drive assembly 63 is twisted at the same time, so that the massage head 648 can perform push-pull massage therapy on the muscles in that part, i.e., scraping therapy. That is to say, after long-term exercise, metabolic wastes such as lactic acid are easily accumulated in the leg muscles, resulting in increased fatigue. Pushing therapy can help accelerate the discharge of metabolic wastes such as lactic acid, thereby relieving muscle fatigue; III. If the athlete feels that a certain muscle group is tense and stiff, he or she can twist the servo knobs 65 in the axial drive assembly 61, the circumferential drive assembly 62 and the vertical drive assembly 63 at the same time, so that the massage head 648 can perform kneading massage therapy on the muscles in that area. The kneading method can effectively relieve muscle tension and gradually relax the muscles by kneading the muscles in a circular or spiral shape with the massage head 648.

[0041] In summary, under different muscle states, the device can perform targeted low temperature and massage therapy according to the athlete's response, thereby further improving the therapy effect.

[0042] As a preferred embodiment, a sliding rod 649 is fixed to the upper end of the introduction cylinder 647, which is slidably arranged in the guide rod 646, and a return spring 650 is connected between the sliding rod 649 and the guide rod 646.

[0043] As a preferred embodiment, it also includes a limit pin 8, which is detachably arranged in the limit slot between the servo knob 65 in the vertical drive assembly 63 and the physiotherapy tube 4. It should be explained that, please refer to Figures 4 to 5 , when the servo knob 65 in the vertical drive assembly 63 is twisted one circle, the corresponding rack 645 moves 1 mm. That is to say, when the difference between the number of twisting circles of the servo knob 65 and the standard number of twisting circles is less than 3, it does not affect the massage effect of the massage head 648 driven by it.

[0044] For details, please refer to Figures 9 and 10 No matter which of the above-mentioned leg massage methods is performed, first twist the servo knob 65 in the vertical drive component 63 to compress the return spring 650. When other drive components change the position of the massage head 648, the return spring 650 will continue to contract or expand adaptively, so that the massage head 648 can apply a certain massage force to the muscle and surrounding muscles.

[0045] In addition, after the servo knob 65 in the vertical drive assembly 63 is positioned, the limit pin 8 is inserted into the limit groove, thereby locking the servo knob 65 and related transmission parts in the vertical drive assembly 63; That is to say, when performing massage, it is only necessary to use both hands to adjust the servo knobs 65 in the axial drive assembly 61 and the circumferential drive assembly 62 respectively, without adjusting the servo knob 65 in the vertical drive assembly 63, so that the user can operate alone.

[0046] The above description is only a preferred embodiment of the rectangular groove of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable local liquid nitrogen therapy device, comprising a liquid nitrogen supply chamber (1), a liquid nitrogen elimination chamber (2) and a liquid nitrogen volatilization release chamber (3) arranged in sequence from top to bottom, It is characterized in that It also comprises a physiotherapy tube (4), a clamping mechanism (5) and a deep physiotherapy mechanism (6); the physiotherapy tube (4) is a cylindrical tube with two ends open; the physiotherapy tube (4) is in sealed communication with the liquid nitrogen volatilization release chamber (3) via an air inlet hole provided in the center of the tube wall at the upper end thereof; the clamping mechanism (5) is symmetrically configured in two groups, respectively arranged on both sides of the open end of the physiotherapy tube (4); and the deep physiotherapy mechanism (6) is arranged inside the physiotherapy tube (4); The clamping mechanism (5), the therapy tube (4) and the leg constitute a closed space, and the closed space is a movable and variable space, and the deep therapy mechanism (6) is used to complete local deep therapy of the muscles in the movable and variable space.

2. A portable local liquid nitrogen therapy device according to claim 1, It is characterized in that The clamping mechanism (5) comprises an arc-shaped connection pad 1 (51), a guide sealing plate (52), an arc-shaped connection pad 2 (53), an elastic sealing pad (54) and a hydraulic telescopic column (55); the arc-shaped connection pad 1 (51) is arranged in plurality on a circumference, one end of the arc-shaped portion of which is fixed to the open end of the therapy tube (4), and the other end is sealed and fixed to one end of the guide sealing plate (52); the guide sealing plate (52) is configured to be conical and has an arc-shaped cross-section; the other end of the guide sealing plate (52) is fixed to the arc-shaped portion of the arc-shaped connection pad 2 (53); a plurality of elastic sealing pads (54) are arranged in a circumference, and are respectively sealed and connected between two adjacent guide sealing plates (52); and the elastic sealing pad (54) is also sealed and fixed to the open end of the therapy tube (4); a plurality of hydraulic telescopic columns (55) are arranged in a circumference, and the two ends of the hydraulic telescopic column (55) are respectively connected to the therapy tube (4) and the guide sealing plate (52) by ball hinge.

3. A portable local liquid nitrogen therapy device according to claim 1, It is characterized in that The deep physiotherapy mechanism (6) comprises an axial drive component (61), a circumferential drive component (62), a vertical drive component (63) and a coordinated physiotherapy component (64); the axial drive component (61), the circumferential drive component (62) and the vertical drive component (63) are all arranged in the physiotherapy cylinder (4), and the coordinated physiotherapy component (64) is arranged in the physiotherapy cylinder (4).

4. A portable local liquid nitrogen therapy device according to claim 3, It is characterized in that The axial drive assembly (61), the circumferential drive assembly (62) and the vertical drive assembly (63) all include a servo knob (65) and a bevel gear set (66); the three servo knobs (65) are distributed in a circumference and are all fixed to one side of the outer wall of the therapy tube (4), and the extension shaft of the servo knob (65) is sealed to pass through the therapy tube (4), the input shaft of the bevel gear set (66) is coaxially fixed with the extension shaft of the servo knob (65), and the output shaft of the bevel gear set (66) is rotatably arranged in a hanging ear in the therapy tube (4).

5. A portable local liquid nitrogen therapy device according to claim 4, It is characterized in that The axial drive assembly (61) further comprises a threaded rod (611) and a guide ring (612); one end of the threaded rod (611) is fixed to the output end of the bevel gear set (66), and the other end is rotatably arranged in the lifting ear; three through holes are opened on the circumference of the guide ring (612), one of the through holes is configured as a threaded hole, and the guide ring (612) is threadedly connected to the threaded rod (611) through the threaded hole.

6. A portable local liquid nitrogen therapy device according to claim 5, It is characterized in that The circumferential drive assembly (62) further comprises a rotating rod (621), a peripheral gear (622) and an outer gear ring (623); one end of the rotating rod (621) is fixed to the output end of the bevel gear set (66), and the other end is rotatably disposed in the lifting ear; the rotating rod (621) is rotatably disposed in one of the through holes; a keyway is axially provided on the rotating rod (621); a connecting key of the peripheral gear (622) is slidably disposed in the keyway; and the peripheral gear ( The extension portion of the outer gear ring (622) is provided with a sleeve ring 1, which is rotatably arranged in an annular groove 1 of the guide ring (612), and the annular groove 1 is coaxially arranged with the rotating rod 1 (623); the outer gear ring 1 (623) is meshed with the peripheral gear (622), and the extension portion of the outer gear ring 1 (623) is provided with a sleeve ring 2, which is rotatably arranged in annular groove 2 of the guide ring (612), and the annular groove 2 is coaxially arranged with the guide ring (612).

7. A portable local liquid nitrogen therapy device according to claim 6, It is characterized in that The vertical drive assembly (63) further comprises a second rotating rod (631), a spur gear (632), a second outer gear ring (633) and an inner gear ring (634); the second rotating rod (631) is rotatably arranged in one of the through holes, a keyway is axially provided on the second rotating rod (631), a connecting key of the spur gear (632) is slidably arranged in the keyway, and a third sleeve ring is provided at an extension portion of the spur gear (632), which is rotatably arranged on the guide ring (612). The annular groove three is coaxially arranged with the rotating rod two (631), the outer gear ring two (633) is meshed with the spur gear (632), and the extension portion of the outer gear ring two (633) is also provided with a sleeve ring four, which is rotatably arranged in the annular groove four on the side of the outer gear ring one (623) away from the guide ring (612), and the annular groove four is coaxially arranged with the guide ring (612), and the inner gear ring (634) is coaxially fixed on the inner wall of the outer gear ring two (633).

8. A portable local liquid nitrogen therapy device according to claim 3 or 7, It is characterized in that The collaborative therapy component (64) comprises a gear box (641), a rotating shaft (642), a rotating tooth 1 (643), a rotating tooth 2 (644), a rack (645), a guide rod (646), an introduction tube (647) and a massage head (648); the gear box (641) is fixed on the inner wall of the outer gear ring 1 (623); one end of the rotating shaft (642) is rotatably arranged on the inner wall of the gear box (641); the other end passes through the other side wall of the gear box (641) and is arranged outside the gear box (641); the rotating tooth 1 (643) is coaxially fixed to the rotating shaft (642) and is located in the gear box (641); the rotating tooth 2 (644) is coaxially fixed to the rotating shaft (642) and is located in the gear box (641); The shaft is fixed on the rotating shaft (642) and meshes with the inner gear ring (634); the rack (645) is slidably arranged in the gear box (641) and meshes with the rotating gear (643); the guide rod (646) is fixed to the bottom of the rack (645) and the other end slides through the gear box (641); the introduction tube (647) is arranged at the bottom of the guide rod (646); the introduction tube (647) is connected to the liquid nitrogen volatilization release chamber (3) by a hose; the massage head (648) is configured as a hollow hemisphere, which is fixed to the bottom of the introduction tube (647); and a plurality of air outlet holes are opened on the massage head (648).

9. A portable local liquid nitrogen therapy device according to claim 8, It is characterized in that A sliding rod (649) is fixed to the upper end of the introduction tube (647), and is slidably arranged inside the guide rod (646), and a return spring (650) is connected between the sliding rod (649) and the guide rod (646).

10. A portable local liquid nitrogen therapy device according to claim 7, It is characterized in that It also comprises a limit pin (8) which is detachably arranged in a limit groove between the servo knob (65) and the physiotherapy cylinder (4) in the vertical drive assembly (63).

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