A cryogenic compression glove and method of use thereof

Abstract

This invention relates to the field of cryogenic compression gloves, specifically a cryogenic compression glove and its method of use. Through the coordinated operation of a surrounding pressure base, a clustered pipe, a pressure control cylinder, a bidirectional output cylinder, and a dot-matrix pressing head, it achieves both precise cyclic compression and dot-matrix massage functions. A drive motor drives a rotating connecting base, causing the internal gear and inner piston cylinder to rotate synchronously. The internal gear meshes with an internal gear ring to generate its own rotation, driving the piston rod to periodically pump air in and out. Through the intermittent alignment of the cover groove and four air outlet slots, four airflow paths are alternately output. Four sets of buffer airbags are respectively connected to the air outlet slots, independently delivering gas through the clustered pipe to the four sets of surrounding airbags outside the cooling layer, ensuring that gas does not cross-flow between the top, bottom, and sides of the palm, achieving synchronous and balanced compression.

Description

Technical Field

[0001] This invention relates to the field of cryogenic compression gloves, specifically to a cryogenic compression glove and its method of use. Background Technology

[0002] Chemotherapy-induced peripheral neuropathy (CIPN) is a common side effect of taxane-based chemotherapy, with an incidence rate as high as 58%-78%, of which approximately 30% of patients experience long-term functional impairment. Currently, there are no effective preventative measures, leading to nearly 20% of patients being forced to discontinue treatment due to CIPN. Current research indicates that in patients receiving taxane-based chemotherapy, the use of cryogenic gloves and compression interventions during chemotherapy can reduce the incidence of high-risk chemotherapy-induced peripheral neuropathy.

[0003] Existing compression gloves typically employ a one-piece airbag design. When the palm is inserted, air in the pressure area is easily squeezed to other parts, causing gas cross-flow. This cross-flow prevents different areas of the palm from receiving balanced pressure, resulting in uneven pressure on the palm, back of the hand, and between the fingers, leading to localized excessively high or low pressure. Since the air pressure in each area cannot be independently controlled, it is difficult to achieve synchronous compression, affecting the treatment effect. The shortcomings of the one-piece airbag are even more obvious in medical scenarios that require precise pressure control, reducing the safety and comfort of use.

[0004] To address this issue, we have designed a low-temperature compression glove, a medical glove that combines a cold source with adjustable pressure. This low temperature and manually adjustable pressure reduce the incidence of peripheral neuropathy in patients undergoing taxane chemotherapy, while also ensuring safety, comfort, and reusability.

[0005] In view of this, we propose a low-temperature compression glove and its method of use. Summary of the Invention

[0006] The purpose of this invention is to provide a cryogenic compression glove and its method of use, to solve the problem mentioned in the background art where air in the compressed area is easily squeezed to other parts, leading to gas crossflow. To achieve the above objective, this invention provides the following technical solution: a cryogenic compression glove and its method of use, comprising a device housing, a pressurizing outer shell fixedly connected to the inner surface of the device housing, a glove outer layer disposed on the outer surface of the device housing, a cooling layer fixedly connected to the inner surface of the glove outer layer, an inner glove fixedly connected to the inner surface of the cooling layer, a surrounding pressurizing seat disposed on the inner surface of the device housing, a clustering pipe disposed on the outer surface of the surrounding pressurizing seat, a pressure control cylinder disposed on the outer surface of the glove outer layer, a bidirectional output cylinder disposed on the outer surface of the device housing, and a dot matrix pressing head disposed on the outer surface of the bidirectional output cylinder.

[0007] Preferably, the surrounding pressure seat includes a drive motor, which is fixedly connected to the outer surface of the pressure housing. The output end of the drive motor is fixedly connected to a rotating connecting seat. A connecting housing is fixedly connected to the inner surface of the pressure housing. A symmetrically distributed internal gear ring is fixedly connected to the inner surface of the connecting housing. Four annularly distributed air outlet grooves are formed on the outer surface of the connecting housing. An internal gear meshes with the outer surface of the internal gear ring. A piston rod is rotatably connected to the inner surface of the internal gear. A piston disc is hinged to the other end of the piston rod. An inner piston cylinder is slidably connected to the inner surface of the connecting housing. A cover groove is fixedly connected to one end of the inner piston cylinder.

[0008] Preferably, the two ends of the rotating connecting seat are rotatably connected to the internal gear and the internal piston cylinder respectively, the piston disc is slidably connected to the inner surface of the internal piston cylinder, and the covering groove covers the outer surface of the air outlet groove.

[0009] Preferably, the clustering pipe includes a buffer airbag, the buffer airbag is fixedly connected to the connecting shell, one end of the buffer airbag is fixedly connected to a one-way input valve, the other end of the buffer airbag is fixedly connected to a one-way output valve, the inner surface of the device shell is fixedly connected to a clustering seat, one end of the clustering seat is fixedly connected to the outer wall of the pipe, the inner surface of the outer wall of the pipe is fixedly connected to an output pipe, the other end of the output pipe is fixedly connected to a surrounding airbag, and the two ends of the surrounding airbag are fixedly connected to connecting airbags.

[0010] Preferably, the number of buffer airbags is four and they are arranged in a ring. The two ends of the output pipe are respectively fixedly connected to a one-way output valve and a connecting airbag. The number of output pipes on the inner surface of the outer wall of the pipe is four. The surrounding airbags are arranged around the outer surface of the cooling layer. The two ends of the surrounding airbags are fixedly connected to connecting airbags.

[0011] Preferably, the pressure control cylinder includes an output connecting pipe, which is fixedly connected to a connecting airbag. An outer mounting cylinder is fixedly connected to the other end of the output connecting pipe. A pressure relief groove is formed on the outer surface of the outer mounting cylinder. An inner movable column is slidably connected to the inner surface of the outer mounting cylinder. Four annularly distributed adjusting valves are slidably connected to the inner surface of the outer mounting cylinder. A pressure-connecting column is fixedly connected to the outer surface of each adjusting valve. A pressure-connecting groove is formed on the outer surface of each adjusting valve. An inner connecting column is fixedly connected to the outer surface of each adjusting valve. An outer extrusion column is slidably connected to the outer surface of the inner connecting column. A compression spring is fixedly connected to the inner surface of the outer extrusion column. A rotating knob is rotatably connected to the outer surface of the outer mounting cylinder. One end of the rotating knob is fixedly connected to a limit post.

[0012] Preferably, the connecting airbag extends to the outer surface of the outer layer of the glove, the inner movable column covers the inner surface of the pressure relief groove, the pressure connecting column is slidably connected to the pressure connecting groove, the two ends of the compression spring are fixedly connected to the outer extrusion column and the inner connecting column respectively, the outer extrusion column is in contact with the inner movable column, and the limiting column is in contact with the adjusting valve.

[0013] Preferably, the bidirectional output cylinder includes an outer support frame, which is fixedly connected to the outer surface of the device housing. An inner mounting cylinder is fixedly connected to the inner surface of the outer support frame. Two symmetrically distributed air output slots are formed on the outer surface of the inner mounting cylinder. A short circulation pipe and a long circulation pipe are fixedly connected to the outer surface of the inner mounting cylinder. Two inner control cylinders are rotatably connected to the inner surface of the inner mounting cylinder. An inner output slot is formed on the outer surface of each inner control cylinder. A control connecting arm is fixedly connected to the outer surface of the inner control cylinder. A bidirectional movable column is slidably connected to the inner surface of the inner mounting cylinder. Piston heads are fixedly connected to both ends of the bidirectional movable column. A path groove is formed on the outer surface of the bidirectional movable column.

[0014] Preferably, there are two external support frames symmetrically distributed, and each inner control cylinder is open at one end and sealed at the other. The inner control cylinder is penetrated by a one-way input valve and a two-way movable column, and the control connecting arm is fixedly connected to the inner control cylinders at both ends. The two ends of the short circulation pipe are in contact with the inner walls of the inner control cylinder and the inner mounting cylinder, respectively, and the two ends of the long circulation pipe are in contact with the inner control cylinders on both sides, respectively. The inner control cylinder has protrusions inside that engage with the path grooves.

[0015] Preferably, the dot matrix pressing head includes an outer piston cylinder, which is fixedly connected to an inner mounting cylinder. One end of the outer piston cylinder is fixedly connected to a pneumatic delivery pipe. An inner mounting seat is fixedly connected to the outer surface of the surrounding airbag. An inner pressing column is slidably connected to the inner surface of the inner mounting seat. Contact ball heads are slidably connected to both ends of the inner pressing column. A compression airbag is fixedly connected to the outer surface of the inner mounting seat. A driven push plate is slidably connected to the outer surface of the compression airbag.

[0016] Preferably, the bidirectional movable column and piston head are slidably connected to the inner surface of the outer piston cylinder, the pneumatic conveying pipe is fixedly connected to the inner surface of the outer wall of the pipe, both ends of the compression airbag are fixedly connected to the pneumatic conveying pipe, and the driven push plate is slidably connected to the contact ball head.

[0017] A method for using a low-temperature compression glove includes the following steps:

[0018] S1. The drive motor drives the internal gear and the internal piston cylinder to rotate synchronously through the rotating connecting seat. The internal gear rotates during the meshing with the internal gear ring, driving the piston rod and piston disc to periodically pump air and inflate air. Through the intermittent alignment of the cover groove with the four air outlet grooves, four airflows are alternately output. The four buffer airbags are respectively connected to the air outlet grooves. When pumping air, air is drawn in through the one-way input valve. When inflating air, gas is sent into the output pipe through the one-way output valve. Finally, the gas is distributed to the top, bottom and two sides of the four independent surrounding airbags to ensure that the pressure of each part of the palm is balanced.

[0019] S2. The connecting airbag around the end of the airbag is connected to the pressure control cylinder through the output connecting pipe. When the pressure inside the airbag reaches the set value, the gas pushes the inner movable column to overcome the elastic force of the compression spring, exposes the pressure relief groove to release gas to maintain constant pressure. By rotating the knob, the number of the adjustment valves is controlled to change the number of parallel compression springs, thereby adjusting the pressure threshold and realizing graded control of the compression force.

[0020] S3. The negative pressure of the one-way input valve drives the bidirectional output cylinder to work. The gas flows selectively through the short or long circulation pipe according to the rotation position of the inner control cylinder, which pushes the piston heads at both ends of the bidirectional moving column to move back and forth. When the piston head moves to the limit position, it drives the inner control cylinder to rotate and switch the airflow direction through the path groove, realizing the automatic control of bidirectional reciprocating motion, and converting the one-way air extraction into alternating output air pressure.

[0021] S4. The reciprocating air pressure of the bidirectional output cylinder is transmitted to both ends of the compression airbag of the dot matrix pressing head through the air pressure delivery pipe. The two bidirectional output cylinders have opposite initial angles, so that the two ends of the compression airbag are alternately inflated and deflated, pushing the driven push plate to slide back and forth. During the sliding process, the contact ball head turns friction into rolling, which drives the inner pressing column to intermittently press the surface of the inner glove, forming a dot matrix pressing effect of cyclic movement.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] In this invention, by coordinating the surrounding airbags, connecting the airbags, and the clustering pipes, four sets of airbags are independently and cyclically inflated in different zones, avoiding gas crossflow. This ensures that the top, bottom, and sides of the palm are subjected to uniform and synchronous pressure. The design distributes the surrounding airbags into four independent units, each connected to the clustering system via a dedicated connecting airbag and output pipe, ensuring that the gas in each zone does not interfere with each other. During cyclic inflation, the four sets of airbags are pressurized sequentially, effectively preventing the gas from shifting from the bottom to the sides due to palm compression. This allows the palm, back of the hand, and the spaces between the fingers to receive balanced pressure simultaneously, significantly improving the stability and comfort of compression therapy, preventing excessive local pressure from causing blood circulation disorders, and providing reliable mechanical support for precision medicine.

[0024] In this invention, the number of parallel compression springs is controlled by the cooperation of the pressure control cylinder, the rotating knob, and the adjusting valve, thereby changing the moving resistance of the inner movable column and adjusting the pressure intensity of the surrounding airbag as needed. The operator rotates the rotating knob to make the limiting column push the adjusting valve. The number of compression springs participating in the parallel connection is controlled by the linkage mechanism of the pressure column and the pressure groove, thereby setting the pressure threshold required for the inner movable column to open the pressure relief groove. This design allows for multiple levels of precise pressure adjustment according to the patient's tolerance, treatment stage, and disease condition. It can gently massage to promote microcirculation or apply high-intensity pressure to control edema, meeting different personalized treatment needs and improving the applicability and treatment safety of the device.

[0025] In this invention, the negative pressure from the one-way input valve is converted into reciprocating power through the combination of the bidirectional output cylinder, the air pressure delivery pipe, and the dot matrix pressing head. This power drives the two ends of the compression airbag to alternately inflate and deflate, pushing the driven push plate to move the pressing column in a cyclical manner, thus achieving a dot matrix massage effect. This structure utilizes the suction kinetic energy of the inflation system, eliminating the need for an additional motor drive and reducing the number of structures. It only requires the gas to be transferred to the glove side. The piston head automatically reciprocates within the bidirectional output cylinder, transmitting alternating pressure to both ends of the compression airbag through the air pressure delivery pipe. The driven push plate slides continuously under the push of the airbag's expansion and contraction, causing the inner pressing column to press the acupoints on the hand in sequence, forming a moving dot matrix massage. This effectively improves blood circulation in the hand, relieves muscle fatigue, and achieves the dual effects of compression therapy and physiotherapy massage. Attached Figure Description

[0026] Figure 1 This is a side view of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the interlocking structure between the pressure shell and the outer layer of the glove according to the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the pressurized outer shell of the present invention;

[0029] Figure 4 This is a front view of the surrounding pressure seat of the present invention;

[0030] Figure 5 This is a schematic diagram of the interaction between the internal gear and the internal piston cylinder of the present invention;

[0031] Figure 6 This is a schematic diagram of the interlocking structure of the various components of the bundled conduit of the present invention;

[0032] Figure 7 This is a schematic diagram of the interaction between the bundled tube and the outer layer of the glove according to the present invention;

[0033] Figure 8 This is a schematic diagram of the internal structure of the outer layer of the glove of the present invention;

[0034] Figure 9 This is a front view of the internal structure of the outer layer of the glove according to the present invention;

[0035] Figure 10 This is a schematic diagram of the interlocking structure of the various components of the pressure control cylinder of the present invention;

[0036] Figure 11 This is a schematic diagram of the internal structure of the pressure control cylinder of the present invention;

[0037] Figure 12 This is a schematic diagram of the interaction structure of the adjusting valve, inner connecting column, and compression spring of the present invention.

[0038] Figure 13 This is a schematic diagram of the interlocking structure of the limiting post, adjusting valve, pressure post, and pressure groove of the present invention.

[0039] Figure 14 This is a schematic diagram of the external structure of the bidirectional output cylinder of the present invention;

[0040] Figure 15 This is a schematic diagram of the internal structure of the bidirectional output cylinder of the present invention;

[0041] Figure 16 This is a schematic diagram of the gas passage of the bidirectional output cylinder of the present invention;

[0042] Figure 17 This is a schematic diagram of the rotating fit structure between the bidirectional movable column and the inner control cylinder of the present invention;

[0043] Figure 18 This is a schematic diagram of the interlocking structure of the components of the dot matrix pressing head of the present invention;

[0044] Figure 19 This is an exploded view of the dot matrix pressing head of the present invention;

[0045] Figure 20 This is a schematic diagram of the dot matrix pressing head of the present invention;

[0046] Figure 21 This is a schematic diagram of the interlocking structure of the inner mounting base, inner pressing column, and contact ball head of the present invention.

[0047] Figure 22 This is a schematic diagram of the structure in which the inner glove and the surrounding airbag of the present invention cooperate.

[0048] In the diagram: 1. Device housing; 11. Pressurized housing; 12. Outer glove layer; 121. Cooling layer; 122. Inner glove; 2. Surrounding pressurized seat; 21. Drive motor; 211. Rotating connecting seat; 22. Connecting housing; 221. Internal gear ring; 222. Air outlet groove; 23. Internal gear; 231. Piston rod; 232. Piston disc; 24. Inner piston cylinder; 241. Covering groove; 3. Bundled pipe; 31. Buffer airbag; 32. One-way input valve; 33. One-way output valve; 331. Bundled seat; 332. Outer wall of pipe; 333. Output pipe; 34. Surrounding airbag; 341. Connecting airbag; 4. Pressure control cylinder; 41. Output connecting pipe; 42. Outer mounting cylinder; 421. Pressure relief groove; 43 44. Adjusting valve; 441. Pressure column; 442. Pressure groove; 45. Inner connecting column; 451. Outer extrusion column; 452. Compression spring; 46. Rotating knob; 461. Limiting column; 5. Bidirectional output cylinder; 51. Outer support frame; 52. Inner mounting cylinder; 521. Air output groove; 522. Short circulation pipe; 523. Long circulation pipe; 53. Inner control cylinder; 531. Inner output groove; 532. Control connecting arm; 54. Bidirectional moving column; 541. Piston head; 542. Path groove; 6. Dot matrix pressing head; 61. Outer piston cylinder; 611. Air pressure delivery pipe; 62. Inner mounting seat; 621. Inner pressing column; 622. Contact ball head; 63. Extrusion airbag; 64. Driven push plate. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Please see Figures 1 to 22 The present invention provides a technical solution: a low-temperature compression glove and its method of use, comprising a device housing 1, a pressurizing housing 11 fixedly connected to the inner surface of the device housing 1, a glove outer layer 12 disposed on the outer surface of the device housing 1, a cooling layer 121 fixedly connected to the inner surface of the glove outer layer 12, an inner glove 122 fixedly connected to the inner surface of the cooling layer 121, a surrounding pressurizing seat 2 disposed on the inner surface of the device housing 1, a clustering pipe 3 disposed on the outer surface of the surrounding pressurizing seat 2, a pressure control cylinder 4 disposed on the outer surface of the glove outer layer 12, a bidirectional output cylinder 5 disposed on the outer surface of the device housing 1, and a dot matrix pressing head 6 disposed on the outer surface of the bidirectional output cylinder 5.

[0051] The outer casing 1 and the pressurizing casing 11 are used to install the inflatable compression part consisting of the surrounding pressurizing base 2 and the bundled pipe 3. The outer glove layer 12, the cooling layer 121 and the inner glove 122 constitute the compression glove part. The glove has a total of three layers from the inside to the outside, with two partitions. The inner partition is the cooling layer 121, and the outer partition is the compression layer surrounding the airbag 34. The inner partition of the cooling layer 121 is filled with gel packets (dextran and agarose). Before use, the glove is placed in a refrigerator at -20°C to freeze. After the compression layer surrounding the airbag 34 is inflated, it achieves the compression function and can be adjusted at any time.

[0052] The surrounding pressure seat 2 includes a drive motor 21, which is fixedly connected to the outer surface of the pressure housing 11. The output end of the drive motor 21 is fixedly connected to a rotating connecting seat 211. The inner surface of the pressure housing 11 is fixedly connected to a connecting housing 22. The inner surface of the connecting housing 22 is fixedly connected to a symmetrically distributed internal gear ring 221. The outer surface of the connecting housing 22 has four annularly distributed air outlet grooves 222. The outer surface of the internal gear ring 221 is meshed with an internal gear 23. The inner surface of the internal gear 23 is rotatably connected to a piston rod 231. The other end of the piston rod 231 is hinged to a piston flap 232. The inner surface of the connecting housing 22 is slidably connected to an inner piston cylinder 24. One end of the inner piston cylinder 24 is fixedly connected to a covering groove 241.

[0053] The two ends of the rotating connecting seat 211 are rotatably connected to the internal gear 23 and the internal piston cylinder 24 respectively. The piston disc 232 is slidably connected to the inner surface of the internal piston cylinder 24. The covering groove 241 covers the outer surface of the air outlet groove 222.

[0054] With the surrounding pressure seat 2, during use, the drive motor 21 drives the rotating connecting seat 211 to rotate at a constant speed inside the connecting housing 22, and the two ends of the rotating connecting seat 211 respectively drive the internal gear 23 and the internal piston cylinder 24 to rotate synchronously at a constant speed, thus remaining relatively stationary.

[0055] As the internal gear 23 revolves around the rotating connecting seat 211, it meshes with the internal gear ring 221 and rotates on its own, thereby driving the internal piston rod 231 and piston disc 232 to periodically move away from or into the interior of the inner piston cylinder 24, thereby performing air extraction and air filling.

[0056] Furthermore, since the inner piston cylinder 24 rotates with the rotating connecting seat 211, the positions for evacuation and inflation will rotate accordingly, aligning with the four air outlet slots 222 opened on the outer side of the connecting housing 22.

[0057] The inner piston cylinder 24 is covered inside the connecting outer shell 22 by the cover groove 241. As long as the air outlet groove 222 is inside the cover groove 241, the air outlet groove 222 can perform air extraction and air filling, realizing the effect of the four air outlet grooves 222 taking turns to intermittently input and output.

[0058] The internal gear 23 rotates four times for every revolution, corresponding to the four air outlets 222.

[0059] The cluster pipe 3 includes a buffer airbag 31, which is fixedly connected to the connecting housing 22. One end of the buffer airbag 31 is fixedly connected to a one-way input valve 32, and the other end of the buffer airbag 31 is fixedly connected to a one-way output valve 33. The inner surface of the device housing 1 is fixedly connected to a cluster seat 331, one end of the cluster seat 331 is fixedly connected to a pipe outer wall 332, the inner surface of the pipe outer wall 332 is fixedly connected to an output pipe 333, the other end of the output pipe 333 is fixedly connected to a surrounding airbag 34, and the two ends of the surrounding airbag 34 are fixedly connected to connecting airbags 341.

[0060] There are four buffer airbags 31 arranged in a ring. The two ends of the output pipe 333 are fixedly connected to the one-way output valve 33 and the connecting airbag 341, respectively. There are four output pipes 333 on the inner surface of the outer wall 332 of the pipe. The airbags 34 are arranged around the outer surface of the cooling layer 121. The two ends of the airbags 34 are fixedly connected to the connecting airbags 341.

[0061] With the arrangement of the cluster pipe 3, during use, the four buffer airbags 31 are connected to the four air outlet slots 222 for interaction. When the air outlet slots 222 are evacuated, external gas is drawn in through the one-way input valve 32. When inflated, the gas is output to the output pipe 333 through the one-way output valve 33.

[0062] Four buffer airbags 31 correspond to four output pipes 333. They are gathered together with the outer wall 332 of the pipes through the cluster seat 331, and the four output pipes 333 are moved as a whole to uniformly output gas to the outer layer 12 of the glove for easy management.

[0063] The four output pipes 333 ultimately output gas to the four connecting airbags 341. Each connecting airbag 341 is connected to multiple surrounding airbags 34, which are distributed in a ring into four groups corresponding to the four output pipes 333. This allows the four groups of connecting airbags 341 to be cyclically inflated when the connecting airbags 341 are inflated. The four groups of connecting airbags 341 are located at the top, bottom, and sides, respectively. Each group inflates independently, and gas cannot enter the other groups of connecting airbags 341. In particular, when the palm is inserted into the inner glove 122, the gas in the bottom surrounding airbag 34 will not be forced into the sides. This achieves synchronous inflation of the surrounding airbags 34 around the palm, and the pressure of each part is balanced during the inflation and compression process.

[0064] The pressure control cylinder 4 includes an output connecting pipe 41, which is fixedly connected to the connecting airbag 341. The other end of the output connecting pipe 41 is fixedly connected to an outer mounting cylinder 42. The outer surface of the outer mounting cylinder 42 is provided with a pressure relief groove 421. The inner surface of the outer mounting cylinder 42 is slidably connected to an inner movable column 43. The inner surface of the outer mounting cylinder 42 is slidably connected to four annularly distributed adjusting valves 44. The outer surface of the adjusting valves 44 is fixedly connected to a pressure connecting column 441. The outer surface of the adjusting valves 44 is provided with a pressure connecting groove 442. The outer surface of the adjusting valves 44 is fixedly connected to an inner connecting column 45. The outer surface of the inner connecting column 45 is slidably connected to an outer extrusion column 451. The inner surface of the outer extrusion column 451 is fixedly connected to a compression spring 452. The outer surface of the outer mounting cylinder 42 is rotatably connected to a rotating knob 46. One end of the rotating knob 46 is fixedly connected to a limit post 461.

[0065] The connecting airbag 341 extends to the outer surface of the outer layer 12 of the glove, the inner movable column 43 covers the inner surface of the pressure relief groove 421, the pressure connecting column 441 is slidably connected to the pressure connecting groove 442, the two ends of the compression spring 452 are fixedly connected to the outer extrusion column 451 and the inner connecting column 45 respectively, the outer extrusion column 451 is in contact with the inner movable column 43, and the limiting column 461 is in contact with the adjusting valve 44.

[0066] With the setting of pressure control cylinder 4, during use, the connecting airbag 341 at the end of the surrounding airbag 34 away from the output pipe 333 is connected to the outer mounting cylinder 42 through the output connecting pipe 41. A valve is installed at the output connecting pipe 41 to control the opening and closing. When the surrounding airbag 34 is fully inflated and pressure needs to be controlled, the valve is opened to connect the connecting airbag 341 to the outer mounting cylinder 42.

[0067] In the initial state, the pressure relief groove 421 of the outer mounting cylinder 42 is blocked by the inner movable column 43, and gas input into the outer mounting cylinder 42 cannot be output, so the total amount of gas remains unchanged;

[0068] Until the internal gas pushes the inner movable column 43, exposing the pressure relief groove 421, the gas is output from the pressure relief groove 421 to reduce the pressure applied around the airbag 34. After the gas is reduced, the applied pressure is reduced, and the inner movable column 43 is reset under the action of the compression spring 452, thereby maintaining the pressure.

[0069] The inner movable column 43 is supported by a telescopic rod consisting of an inner connecting column 45, an outer extrusion column 451, and a compression spring 452. The movement of the inner movable column 43 needs to overcome the elasticity of the compression spring 452. The more compression springs 452 there are, the more they are connected in parallel, and the more pressure the inner movable column 43 needs to move.

[0070] The four adjustment petals 44 are linked and controlled by the pressure column 441 and the pressure groove 442. When the rear adjustment petal 44 is pushed, it will be pressed into the front pressure groove 442 through the pressure column 441, so that all the adjustment petals 44 in front of the rear adjustment petal 44 are pushed.

[0071] By rotating the knob 46 to align the limiting post 461 with the adjusting petal 44, all the adjusting petals 44 before the adjusting petal 44 can be pushed out, thereby controlling the number of adjusting petals 44 pushed out, so as to control the pressure required to overcome the elasticity of the compression spring 452 for the inner movable post 43 to move. That is, the more compression springs 452 are connected in parallel, the greater the pressure applied around the airbag 34.

[0072] Furthermore, the first adjusting valve 44 has no pressure column 441 and the last adjusting valve 44 has no pressure groove 442, so it will not be cyclically controlled.

[0073] The bidirectional output cylinder 5 includes an outer support frame 51, which is fixedly connected to the outer surface of the device housing 1. An inner mounting cylinder 52 is fixedly connected to the inner surface of the outer support frame 51. Two symmetrically distributed air output slots 521 are opened on the outer surface of the inner mounting cylinder 52. A short circulation pipe 522 and a long circulation pipe 523 are fixedly connected to the outer surface of the inner mounting cylinder 52. Two inner control cylinders 53 are rotatably connected to the inner surface of the inner mounting cylinder 52. An inner output slot 531 is opened on the outer surface of each inner control cylinder 53. A control connecting arm 532 is fixedly connected to the outer surface of the inner control cylinder 53. A bidirectional movable column 54 is slidably connected to the inner surface of the inner mounting cylinder 52. A piston head 541 is fixedly connected to both ends of the bidirectional movable column 54. A path groove 542 is opened on the outer surface of the bidirectional movable column 54.

[0074] There are two outer support frames 51, which are symmetrically distributed. The inner control cylinders 53 are all open at one end and sealed at the other end. The inner control cylinders 53 are respectively penetrated by the one-way input valve 32 and the two-way movable column 54. The control connecting arm 532 is fixedly connected to the inner control cylinders 53 at both ends. The two ends of the short circulation pipe 522 are in contact with the inner walls of the inner control cylinder 53 and the inner mounting cylinder 52, respectively. The two ends of the long circulation pipe 523 are in contact with the inner control cylinders 53 on both sides, respectively. The inner control cylinder 53 has a protrusion inside that engages with the path groove 542.

[0075] With the bidirectional output cylinder 5 in use, the suction generated by the one-way input valve 32 when it draws air enters the inner mounting cylinder 52. Depending on the state of the inner control cylinder 53, it will enter the short circulation pipe 522 or the long circulation pipe 523 respectively. By controlling the connecting arm 532, the rotation direction of the inner control cylinders 53 on both sides is controlled at the same time to switch the gas passage state and control the movement direction of the bidirectional moving column 54.

[0076] When the control connecting arm 532 is at the top, the inner control cylinder 53 on the side near the one-way input valve 32 blocks the gas output slot 521 on that side. At the same time, the inner output slot 531 on that side is connected to the short circulation pipe 522. The inner control cylinder 53 on the other side opens the gas output slot 521. At this time, the two flow directions of the gas are: the piston head 541 on the side near the one-way input valve 32 outputs to the one-way input valve 32 through the short circulation pipe 522 and the inner control cylinder 53 on that side; on the other side of the piston head 541, air enters from the gas output slot 521 to fill the interior of the inner mounting cylinder 52. In this way, the piston head 541 will move towards the side where the gas is reduced, that is, towards the one-way input valve 32.

[0077] When the control connecting arm 532 is at the bottom, the inner control cylinder 53 on the side near the one-way input valve 32 opens the gas output slot 521 on that side and connects it to the long circulation pipe 523 at the bottom. The inner control cylinder 53 on the other side closes the gas output slot 521 and connects it to the long circulation pipe 523. When the one-way input valve 32 draws gas, the gas in the inner mounting cylinder 52 on the side of the piston head 541 away from the one-way input valve 32 is drawn to the one-way input valve 32 through the long circulation pipe 523. Meanwhile, the gas on the other side of the piston head 541 is replenished from the gas output slot 521. Since the changes in the gas at both ends of the piston head 541 are opposite, the piston head 541 moves in the opposite direction, that is, it moves away from the one-way input valve 32.

[0078] A cylindrical cam structure is formed by the path groove 542 opened on the bidirectional movable column 54. When the piston head 541 drives the bidirectional movable column 54 to move to both sides, the inner control cylinder 53 will rotate. The inner control cylinders 53 on both sides will rotate simultaneously by controlling the connecting arm 532 to switch the moving direction of the piston head 541.

[0079] To achieve fully automatic control, the one-way air extraction of the one-way input valve 32 is changed to reciprocating movement, and the initial angles of the control connecting arms 532 on both sides are opposite.

[0080] The dot matrix pressing head 6 includes an outer piston cylinder 61, which is fixedly connected to an inner mounting cylinder 52. One end of the outer piston cylinder 61 is fixedly connected to a pneumatic delivery pipe 611. An inner mounting seat 62 is fixedly connected to the outer surface of the airbag 34. An inner pressing column 621 is slidably connected to the inner surface of the inner mounting seat 62. Contact ball heads 622 are slidably connected to both ends of the inner pressing column 621. A compression airbag 63 is fixedly connected to the outer surface of the inner mounting seat 62. A driven push plate 64 is slidably connected to the outer surface of the compression airbag 63.

[0081] The bidirectional movable column 54 and piston head 541 are slidably connected to the inner surface of the outer piston cylinder 61, the air pressure delivery pipe 611 is fixedly connected to the inner surface of the outer wall 332 of the pipe, both ends of the compression airbag 63 are fixedly connected to the air pressure delivery pipe 611, and the driven push plate 64 is slidably connected to the contact ball head 622.

[0082] With the dot matrix pressing head 6, during use, the piston head 541 moves back and forth inside the outer piston cylinder 61 to achieve air extraction and inflation. The two air pressure delivery pipes 611 are connected to the bidirectional output cylinders 5 on both sides to transmit gas input and output to both ends of the compression airbag 63. The initial angle of the control connecting arm 532 is opposite, and the two ends of the compression airbag 63 are cyclically extracted and inflated, and the directions are always opposite.

[0083] The driven push plate 64 covers the top of the compression airbag 63 and applies pressure to divide the compression airbag 63 into two sections. The driven push plate 64 also presses the contact ball head 622 at the bottom, converting sliding friction into rolling friction, so that the driven push plate 64 can slide freely on the surface of the compression airbag 63.

[0084] Since the two ends of the compression airbag 63 are inflated and deflated respectively, the volume of the inflated side increases and the volume of the deflated side decreases. This pushes the driven push plate 64 towards the deflating side, realizing the reciprocating movement of the driven push plate 64. During the movement, the contact ball head 622 drives the inner pressing column 621 to press on the surface of the inner glove 122, realizing the effect of pressing the hand surface sequentially through the contact ball head 622, achieving a dot matrix pressing effect.

[0085] In this embodiment, as Figure 1 , Figure 2 As shown, the device housing 1 and the pressurizing housing 11 are used to install the inflatable compression part consisting of the surrounding pressurizing seat 2 and the bundled pipe 3. The outer glove layer 12, the cooling layer 121 and the inner glove 122 constitute the compression glove part, which are connected by the bundled pipe 3.

[0086] In this embodiment, as Figure 3 As shown, the gas inside the outer casing 1 is divided into four groups by the pressurized outer casing 11 and then concentrated and output through the bundle pipe 3 before being dispersed.

[0087] In this embodiment, as Figure 4 , Figure 5 As shown, during the synchronous rotation of the internal gear 23 and the internal piston cylinder 24, the internal gear 23 drives the piston disc 232 to reciprocate and extend, thereby periodically changing the direction of gas output.

[0088] In this embodiment, as Figure 6 , Figure 7 , Figure 8 As shown, the periodic gas output is concentrated and input to the outer layer 12 of the glove through the cluster pipe 3, and then dispersed to the top, bottom and side surrounding airbags 34. Figure 7 The positional relationship between the inner glove 122 and the surrounding airbag 34 is shown in the middle, while the cooling layer 121 is hidden.

[0089] In this embodiment, as Figure 9 , Figure 22 As shown, the glove has three layers from the inside out, with two partitions. The inner partition is a cooling layer 121, and the outer partition is a compression layer surrounding the airbag 34.

[0090] In this embodiment, as Figure 10 , Figure 11 As shown, after the outer mounting cylinder 42 needs to be moved, the pressure relief groove 421 will be opened to reduce the internal pressure. The pressure required for the outer mounting cylinder 42 to move is controlled by the cooperation of the outer extrusion column 451 and the compression spring 452, thereby adjusting the internal pressure.

[0091] In this embodiment, as Figure 12 , Figure 13 As shown, the four adjustment petals 44 are linked and controlled by the pressure column 441 and the pressure groove 442. When the rear adjustment petal 44 is pushed, it will be pressed into the front pressure groove 442 through the pressure column 441, so that all the adjustment petals 44 in front of the rear adjustment petal 44 are pushed.

[0092] In this embodiment, as Figure 14 , Figure 15 As shown, the internal and external structures of the bidirectional output cylinder 5;

[0093] In this embodiment, as Figure 16 As shown, arrows indicate the direction of movement of piston head 541 and the direction of airflow on both sides. In the upper figure, the short circulation pipe 522 and the left gas output slot 521 are open, and gas is input from the left side and output from the right side of piston head 541. In the lower figure, the long circulation pipe 523 and the right piston head 541 gas output slot 521 are open, and gas is output from the left side and input from the right side of piston head 541, thereby pushing piston head 541 to move in different directions.

[0094] In this embodiment, as Figure 17 As shown, the cylindrical cam structure formed by the path groove 542 will cause the inner control cylinder 53 to rotate when the piston head 541 drives the bidirectional movable column 54 to move to both sides, so as to switch the state.

[0095] In this embodiment, as Figure 18 , Figure 19 As shown, the dot matrix press head 6 covers the inner glove 122 and the outside of the surrounding airbag 34;

[0096] In this embodiment, as Figure 20 As shown, the increased volume on the inflation side will push the driven pusher 64 towards the deflation side;

[0097] In this embodiment, as Figure 21As shown, the contact ball head 622 drives the inner pressing column 621 to press against the surface of the inner glove 122, thereby achieving the pressing of the hand surface by the contact ball head 622 in sequence.

[0098] The invention relates to a method of use and advantages of cryogenic compression gloves: the working process is as follows:

[0099] like Figures 1 to 22 As shown, during use, the drive motor 21 drives the internal gear 23 and the internal piston cylinder 24 to rotate synchronously through the rotating connecting seat 211. The internal gear 23 rotates during the meshing process with the internal gear ring 221, driving the piston rod 231 and piston disc 232 to periodically pump air and inflate air. Through the intermittent alignment of the cover groove 241 with the four air outlet grooves 222, the four airflows are alternately output. The four buffer airbags 31 are respectively connected to the air outlet grooves 222. When pumping air, air is drawn in through the one-way input valve 32. When inflating air, gas is sent into the output pipe 333 through the one-way output valve 33. Finally, the gas is distributed to the top, bottom and two sides of the four independent surrounding airbags 34 to ensure that the pressure of each part of the palm is balanced.

[0100] The connecting airbag 341 surrounding the end of the airbag 34 is connected to the pressure control cylinder 4 through the output connecting pipe 41. When the pressure inside the airbag reaches the set value, the gas pushes the inner movable column 43 to overcome the elastic force of the compression spring 452, exposing the pressure relief groove 421 to release gas to maintain constant pressure. By rotating the rotary knob 46, the number of the adjustment valve 44 is controlled, and the number of parallel compression springs 452 is changed, thereby adjusting the pressure threshold and realizing graded control of the compression force.

[0101] The negative pressure of the one-way input valve 32 drives the bidirectional output cylinder 5 to work. The gas flows selectively through the short circulation pipe 522 or the long circulation pipe 523 according to the rotation position of the inner control cylinder 53, which pushes the piston heads 541 at both ends of the bidirectional movable column 54 to move back and forth. When the piston head 541 moves to the limit position, it drives the inner control cylinder 53 to rotate and switch the airflow direction through the path groove 542, realizing the automatic control of bidirectional reciprocating motion, and converting the one-way air extraction into alternating output air pressure.

[0102] The reciprocating air pressure of the bidirectional output cylinder 5 is transmitted to both ends of the compression airbag 63 of the dot matrix pressing head 6 through the air pressure delivery pipe 611. The two bidirectional output cylinders 5 have opposite initial angles, causing the two ends of the compression airbag 63 to alternately inflate and de-inflate, pushing the driven push plate 64 to slide back and forth. During the sliding process, the contact ball head 622 converts friction into rolling, causing the inner pressing column 621 to intermittently press the surface of the inner glove 122, forming a cyclically moving dot matrix pressing effect.

[0103] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cryogenic compression glove, comprising a device housing (1), wherein a pressure housing (11) is fixedly connected to the inner surface of the device housing (1), a glove outer layer (12) is disposed on the outer surface of the device housing (1), a cooling layer (121) is fixedly connected to the inner surface of the glove outer layer (12), and an inner glove (122) is fixedly connected to the inner surface of the cooling layer (121), characterized in that: The inner surface of the device housing (1) is provided with a surrounding pressure seat (2), which generates periodic air pressure changes through rotational motion. The outer surface of the surrounding pressure seat (2) is provided with a cluster pipe (3), which is connected between the device housing (1) and the outer layer of the glove (12) to divert air pressure to the outer layer of the glove (12). The outer surface of the outer layer of the glove (12) is provided with a pressure control cylinder (4). The outer surface of the device housing (1) is provided with a bidirectional output cylinder (5), which uses negative pressure to achieve reciprocating motion. The outer surface of the bidirectional output cylinder (5) is provided with a dot matrix pressing head (6) driven by reciprocating motion. The inner surface of the pressurized outer shell (11) is fixedly connected to a connecting outer shell (22). The outer surface of the connecting outer shell (22) is provided with four annularly distributed air outlet grooves (222). The air outlet grooves (222) are connected to the bundle pipe (3) to realize airflow exchange. The inner surface of the connecting outer shell (22) is slidably connected to an inner piston cylinder (24). One end of the inner piston cylinder (24) is fixedly connected to a covering groove (241). The covering groove (241) covers the four air outlet grooves (222) in sequence as the inner piston cylinder (24) rotates. The cluster pipe (3) includes a buffer airbag (31), which is fixedly connected to the connecting shell (22) and receives airflow from four air outlet slots (222). One end of the buffer airbag (31) is fixedly connected to a one-way input valve (32), which opens to draw in external air when pumping air. The other end of the buffer airbag (31) is fixedly connected to a one-way output valve (33), which opens to output gas when inflating. A cluster seat (331) is fixedly connected to the inner surface of the outer shell (1) of the device. One end of the cluster seat (331) is fixedly connected to the outer wall of the pipe (332). An output pipe (333) is fixedly connected to the inner surface of the outer wall of the pipe (332). A surrounding airbag (34) is fixedly connected to the other end of the output pipe (333). A connecting airbag (341) is fixedly connected to both ends of the surrounding airbag (34). The pressure control cylinder (4) includes an output connecting pipe (41), which is fixedly connected to the connecting airbag (341) to receive the pressure inside the connecting airbag (341). The other end of the output connecting pipe (41) is fixedly connected to an outer mounting cylinder (42). The outer mounting cylinder (42) has a pressure regulating chamber inside. The outer surface of the outer mounting cylinder (42) is provided with a pressure relief groove (421). The inner surface of the outer mounting cylinder (42) is slidably connected to an inner movable column (43). The inner movable column (43) initially covers the pressure relief groove (421) and exposes the pressure relief groove (421) after displacement to achieve gas release. The inner movable column (43) senses the airbag pressure and controls the timing of pressure relief.

2. The low-temperature compression glove according to claim 1, characterized in that: The surrounding pressure seat (2) includes a drive motor (21), which is fixedly connected to the outer surface of the pressure housing (11). The output end of the drive motor (21) is fixedly connected to a rotating connecting seat (211), and the output end of the drive motor (21) drives the rotating connecting seat (211) to rotate. The connecting housing (22) provides an installation base for the internal gear ring (221), and the inner surface of the connecting housing (22) is fixedly connected to symmetrically distributed internal gear rings (221).

3. A low-temperature compression glove according to claim 2, characterized in that: An internal gear (23) meshes with the outer surface of the internal gear ring (221). The internal gear (23) rotates with the internal gear ring (221) while following the rotation of the rotating connecting seat (211). A piston rod (231) is rotatably connected to the inner surface of the internal gear (23). The piston rod (231) reciprocates under the drive of the rotation of the internal gear (23). The other end of the piston rod (231) is hinged to a piston flap (232). The piston flap (232) realizes air extraction and air filling in the reciprocating motion. The inner piston cylinder (24) rotates synchronously with the rotating connecting seat (211) and cooperates with the piston flap (232) to form an airtight chamber.

4. A cryogenic compression glove according to claim 3, characterized in that: The cluster seat (331) gathers the output pipes (333) of the four one-way output valves (33), and four independent airflow channels are formed on the inner side of the outer wall (332) of the pipe. The output pipe (333) delivers high-pressure gas to the surrounding airbag (34). The surrounding airbag (34) applies pressure to the palm after inflation. The connecting airbag (341) independently connects the output pipe (333) with each group of surrounding airbags (34).

5. A low-temperature compression glove according to claim 4, characterized in that: The inner surface of the outer mounting cylinder (42) is slidably connected to four annularly distributed adjusting flaps (44). The outer surface of the outer mounting cylinder (42) is rotatably connected to a rotating knob (46). One end of the rotating knob (46) is fixedly connected to a limiting post (461). The limiting post (461) passes through the side wall of the outer mounting cylinder (42) and is rotatably disposed inside the outer mounting cylinder (42). After the limiting post (461) rotates, it aligns with and pushes the adjusting flaps (44), causing the adjusting flaps (44) to generate axial displacement. The outer surface of the adjusting flaps (44) is fixedly connected to a pressure column (441). The pressure column (441) cooperates with the pressure groove (442) of the adjacent adjusting flaps (44) to achieve linkage control. The outer surface of the adjusting valve (44) is provided with a pressure groove (442), which receives the thrust of the pressure column (441) of the adjusting valve (44) behind it; an inner connecting column (45) is fixedly connected to the outer surface of the adjusting valve (44), which moves with the adjusting valve (44) to adjust the number of parallel compression springs (452); an outer extrusion column (451) is slidably connected to the outer surface of the inner connecting column (45), which contacts the inner movable column (43) to transmit the spring force; a compression spring (452) is fixedly connected to the inner surface of the outer extrusion column (451), and the number of parallel compression springs (452) determines the moving resistance of the inner movable column (43).

6. A cryogenic compression glove according to claim 5, characterized in that: The bidirectional output cylinder (5) includes an outer support frame (51), and an inner mounting cylinder (52) is fixedly connected to the inner surface of the outer support frame (51). The outer support frame (51) is fixedly connected to the outer shell (1) of the device and provides support for the inner mounting cylinder (52). A pressure conversion chamber is formed inside the inner mounting cylinder (52). Two inner control cylinders (53) are rotatably connected to the inner surface of the inner mounting cylinder (52). The outer surface of each inner control cylinder (53) is provided with an inner output groove (531). A control connecting arm (532) is fixedly connected to the outer surface of the inner control cylinder (53). The control connecting arm (532) ensures that the two inner control cylinders (53) rotate synchronously. A bidirectional movable column (54) is slidably connected to the inner surface of the inner mounting cylinder (52). The bidirectional movable column (54) moves axially under the drive of airflow. Both ends of the inner mounting cylinder (52) are fixedly connected to piston heads (541). The piston heads (541) divide the inner mounting cylinder (52) into two air pressure chambers. The outer surface of the inner mounting cylinder (52) is provided with two symmetrically distributed air output slots (521). The air output slots (521) are supplemented with air when the piston heads (541) move. The outer surface of the inner mounting cylinder (52) is fixedly connected to a short circulation pipe (522) and a long circulation pipe (523). The short circulation pipe (522) and the long circulation pipe (523) alternately conduct air passages under the switching of the control connecting arm (532). The inner output slot (531) is aligned with the short circulation pipe (522) or the long circulation pipe (523) to achieve airflow conduction. The outer surface of the bidirectional movable column (54) is provided with a path slot (542). The path slot (542) engages with the protrusion of the inner control cylinder (53) to achieve reversal.

7. A cryogenic compression glove according to claim 6, characterized in that: The dot matrix pressing head (6) includes an outer piston cylinder (61), which is fixedly connected to an inner mounting cylinder (52) and receives the reciprocating drive of the piston head (541). One end of the outer piston cylinder (61) is fixedly connected to a pneumatic delivery pipe (611). An inner mounting seat (62) is fixedly connected to the outer surface of the surrounding airbag (34). An inner pressing column (621) is slidably connected to the inner surface of the inner mounting seat (62), which provides a sliding guide for the inner pressing column (621). Contact ball heads (622) are slidably connected to both ends of the inner pressing column (621), which rotate the sliding friction. Instead of rolling friction, a compression airbag (63) is fixedly connected to the outer surface of the inner mounting base (62). Both ends of the compression airbag (63) are fixedly connected to the air pressure delivery pipe (611). The air pressure delivery pipe (611) transmits reciprocating air pressure to the compression airbag (63). A driven push plate (64) is slidably connected to the outer surface of the compression airbag (63). The driven push plate (64) slides down when the compression airbag (63) deforms and pushes the inner pressing column (621). The driven push plate (64) is slidably connected to the contact ball head (622), so that the inner pressing column (621) presses the glove under the push of the driven push plate (64).

8. A method of using a cryogenic compression glove, comprising using a cryogenic compression glove as described in claim 7, characterized in that, The process includes the following steps: S1, the drive motor (21) drives the internal gear (23) and the internal piston cylinder (24) to rotate synchronously through the rotating connecting seat (211). The internal gear (23) rotates during the meshing process with the internal gear ring (221), driving the piston rod (231) and piston disc (232) to periodically pump and inflate. Through the intermittent alignment of the cover groove (241) with the four air outlet grooves (222), the four airflows are alternately output. The four buffer airbags (31) are respectively connected to the air outlet grooves (222). When pumping air, air is drawn in through the one-way input valve (32). When inflating air, gas is sent into the output pipe (333) through the one-way output valve (33). Finally, the gas is distributed to the top, bottom and two sides of the four independent surrounding airbags (34) to ensure that the pressure of each part of the palm is balanced. S2. The connecting airbag (341) around the end of the airbag (34) is connected to the pressure control cylinder (4) through the output connecting pipe (41). When the pressure inside the airbag reaches the set value, the gas pushes the inner movable column (43) to overcome the elastic force of the compression spring (452), exposes the pressure relief groove (421) to release gas to maintain constant pressure. By rotating the rotary knob (46), the number of the adjustment valve (44) is controlled, and the number of parallel compression springs (452) is changed, thereby adjusting the pressure threshold and realizing graded control of the pressure force. S3. The negative pressure of the one-way input valve (32) drives the bidirectional output cylinder (5) to work. The gas flows selectively through the short circulation pipe (522) or the long circulation pipe (523) according to the rotation position of the inner control cylinder (53), which pushes the piston head (541) at both ends of the bidirectional movable column (54) to move back and forth. When the piston head (541) moves to the limit position, it drives the inner control cylinder (53) to rotate and switch the airflow direction through the path groove (542), realizing the automatic control of bidirectional reciprocating motion, and converting the one-way air extraction into alternating output air pressure. S4. The reciprocating air pressure of the bidirectional output cylinder (5) is transmitted to both ends of the compression airbag (63) of the dot matrix pressing head (6) through the air pressure delivery pipe (611). The two bidirectional output cylinders (5) have opposite initial angles, so that the two ends of the compression airbag (63) are alternately inflated and deflated, pushing the driven push plate (64) to slide back and forth. During the sliding process, the contact ball head (622) turns friction into rolling, which drives the inner pressing column (621) to intermittently press the surface of the inner glove (122), forming a dot matrix pressing effect of cyclic movement.

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