Cold therapy instrument

Abstract

The embodiment of the invention provides a cold therapy instrument. The cold therapy instrument comprises an equipment control chamber (1), a freezing cabin (2) and a pre-cooling cabin (3) which are connected in sequence, the freezing cabin (2) is used for performing cold therapy on a user (16); the equipment control chamber (1) is arranged on the first side of the freezing cabin (2) and can be connected to the first side of the freezing cabin (2); the pre-cooling cabin (3) is arranged on the second side of the freezing cabin (2), the freezing cabin (2) is provided with a freezing cabin cold air outlet (5) leading to the pre-cooling cabin (3), gas exhausted into the pre-cooling cabin (3) is used for pre-cooling the pre-cooling cabin (3), and waste of refrigeration energy caused by the fact that the gas is directly exhausted into the atmosphere is avoided; and the second side of the freezing cabin (2) is provided with a freezing cabin door (6) for a user (16) to directly enter the freezing cabin (2) from the pre-cooling cabin (3). And in the process that a user enters the freezing cabin from the pre-cooling cabin with the temperature lower than the external conventional temperature, the temperature change amplitude in the freezing cabin is reduced.

Description

Technical Field

[0001] The present invention relates to the field of cryotherapy, and in particular to a cryotherapy device. Background Art

[0002] Cold therapy is currently a relatively advanced method of treating diseases. It can use a low-temperature environment of about -140°C created by a low-temperature medium that is lower than human body temperature to quickly contact the whole or part of the human body, causing the whole or part of the human body to cool down rapidly in a short period of time, thereby achieving the purpose of promoting circulation and metabolism, alleviating sports injuries, enhancing the body's immunity, improving sleep, regulating stress and emotions, and even treating diseases.

[0003] In the process of implementing the present invention, the applicant discovered that there are at least the following problems in the prior art:

[0004] In the prior art, in cryotherapy equipment for whole-body cryotherapy, the user directly enters and exits the freezing chamber. When the user directly enters and exits the freezing chamber, the temperature inside the chamber rises rapidly, which not only prolongs the refrigeration time inside the chamber, but also causes energy loss. In addition, the gas discharged during the use of the freezing chamber still has a very low temperature, and direct discharge is a waste of refrigeration energy. Summary of the invention

[0005] The embodiment of the present invention provides a cold therapy device that can solve the technical problem in the prior art that "the temperature in the cabin rises rapidly, which not only prolongs the refrigeration time in the cabin, but also causes energy loss. In addition, the gas discharged during the use of the freezing chamber still has a very low temperature, and direct discharge is a waste of refrigeration energy."

[0006] To achieve the above-mentioned purpose, an embodiment of the present invention provides a cryotherapy device, comprising an equipment control room, a freezing chamber and a pre-cooling chamber which are connected in sequence;

[0007] The freezing chamber is used to perform cold therapy on the user, and the freezing chamber is a sealed structure;

[0008] The equipment control room is disposed on a first side of the freezing chamber and can be connected to the first side of the freezing chamber, and the equipment control room can refrigerate the freezing chamber;

[0009] The precooling chamber is arranged at the second side of the freezing chamber, the freezing chamber has a freezing chamber cold air outlet leading to the precooling chamber, the freezing chamber cold air outlet is used to gradually discharge the gas in the freezing chamber into the precooling chamber, and the gas discharged into the precooling chamber is used to precool the precooling chamber;

[0010] A freezing chamber door is provided on the second side of the freezing chamber for a user to directly enter the freezing chamber from the pre-cooling chamber.

[0011] Preferably, the precooling chamber comprises a precooling chamber door for a user to enter the precooling chamber from the outside, and a gap is formed between the precooling chamber door and the door frame when the precooling chamber door is in a closed state.

[0012] Preferably, the first side of the refrigeration chamber has a first side wall shared with the equipment control room, and the first side wall has an oxygen inlet for the refrigeration chamber;

[0013] The equipment control room is provided with a control device and an oxygen supply device, wherein the control device has a control program, and the control program is used to control the oxygen supply device to transport the oxygen in the oxygen supply device from the oxygen inlet of the refrigerating chamber to the refrigerating chamber.

[0014] Preferably, a liquid nitrogen refrigeration device is also provided in the equipment control room; and / or, an electric refrigerant supply unit is also provided in the equipment control room, a refrigeration unit is provided on the inner annular wall of the refrigeration chamber, the refrigeration unit can be connected to the electric refrigerant supply unit, the inner annular wall includes the inner wall of the first side wall, wherein the electric refrigeration device includes the electric refrigerant supply unit and the refrigeration unit, and the electric refrigeration device can cool the refrigeration chamber.

[0015] Preferably, the electric refrigerant supply unit comprises an electric refrigeration compressor, a refrigerant tank, an upper refrigeration pipe, a middle refrigeration pipe, a lower refrigeration pipe, an upper refrigeration pipe control valve, a middle refrigeration pipe control valve and a lower refrigeration pipe control valve, the electric refrigeration compressor is connected to the refrigerant tank, and the electric refrigeration compressor is also respectively connected to the upper refrigeration pipe, the middle refrigeration pipe and the lower refrigeration pipe; the electric refrigeration compressor is used to push the refrigerant in the refrigerant tank into the upper refrigeration pipe, the middle refrigeration pipe and the lower refrigeration pipe respectively;

[0016] The upper refrigeration pipe control valve is arranged on the upper refrigeration pipe and is used to control the flow rate of the refrigerant in the upper refrigeration pipe;

[0017] The intermediate cooling pipe control valve is arranged on the intermediate cooling pipe and is used to control the flow rate of the refrigerant in the intermediate cooling pipe;

[0018] The lower refrigeration pipe control valve is arranged on the lower refrigeration pipe and is used to control the flow rate of the refrigerant in the lower refrigeration pipe;

[0019] The refrigeration unit comprises an upper refrigeration plate, a middle refrigeration plate and a lower refrigeration plate which are spaced apart from top to bottom;

[0020] The upper refrigeration plate is connected to the upper refrigeration tube for receiving the refrigerant in the upper refrigeration tube;

[0021] The intermediate cooling plate is connected to the intermediate cooling pipe to receive the refrigerant in the intermediate cooling pipe.

[0022] The lower refrigeration plate is connected to the lower refrigeration pipe for receiving the refrigerant in the lower refrigeration pipe.

[0023] Preferably, the first side of the refrigerating chamber has a first side wall shared with the equipment control room, and the first side wall has a low-temperature medium inlet of the refrigerating chamber;

[0024] The control device has a control program, the control program is used to control the liquid nitrogen refrigeration device to transport the cryogenic medium in the liquid nitrogen refrigeration device from the cryogenic medium inlet of the refrigeration chamber to the refrigeration chamber, and is used to automatically maintain the temperature in the refrigeration chamber at the low temperature set for the refrigeration chamber by the control program according to the temperature feedback in the refrigeration chamber;

[0025] The liquid nitrogen refrigeration equipment comprises a liquid nitrogen tank, a liquid nitrogen outlet, a liquid nitrogen main pipe, a liquid nitrogen liquid separation valve, an upper liquid separation pipeline, a middle liquid separation pipeline, a lower liquid separation pipeline, an upper liquid nitrogen nozzle control valve, a middle liquid nitrogen nozzle control valve and a lower liquid nitrogen nozzle control valve;

[0026] The inlet of the liquid nitrogen main pipe is connected to the liquid nitrogen tank through the liquid nitrogen outlet, and the outlet of the liquid nitrogen main pipe is connected to the inlet of the liquid nitrogen liquid separation valve;

[0027] The outlet of the liquid nitrogen liquid separation valve is connected to the upper liquid separation pipeline, the middle liquid separation pipeline and the lower liquid separation pipeline, and the liquid nitrogen liquid separation valve is used to separate the liquid nitrogen in the liquid nitrogen main pipe into the upper liquid separation pipeline, the middle liquid separation pipeline and the lower liquid separation pipeline;

[0028] The upper liquid nitrogen nozzle control valve is arranged on the upper liquid separation pipeline;

[0029] The middle liquid nitrogen nozzle control valve is arranged on the middle liquid separation pipeline;

[0030] The lower liquid nitrogen nozzle control valve is arranged on the lower liquid separation pipeline;

[0031] The outlet of the upper liquid separation pipeline, the outlet of the middle liquid separation pipeline, and the outlet of the lower liquid separation pipeline can be connected to the low-temperature medium inlet of the freezing chamber to discharge the liquid nitrogen into the freezing chamber.

[0032] Preferably, the liquid nitrogen refrigeration equipment further comprises an airflow guide cover, and the upper liquid separation pipeline, the middle liquid separation pipeline and the lower liquid separation pipeline are respectively inserted into the airflow guide cover laterally;

[0033] The airflow guide cover comprises a cover bottom plate, an air guide grid, a side ring and two transverse partitions, the air guide grid and the cover bottom plate are both arranged vertically and opposite to each other, the cover bottom plate is arranged at the proximal end of the liquid nitrogen liquid separation valve, and the air guide grid is arranged at the proximal end of the low-temperature medium inlet of the refrigeration chamber;

[0034] The cover bottom plate is sealed and connected to the first opening of the side ring, and the edge of the air guide grille is sealed and connected to the second opening of the side ring;

[0035] The transverse baffles are arranged in the side ring at intervals up and down, and each of the transverse baffles is sealed and connected to the inner wall of the side ring, the inner side of the cover bottom plate, and the inner side of the air guide grille, dividing the airflow guide cover into three horizontal spaces: an upper horizontal space, a middle horizontal space, and a lower horizontal space;

[0036] The upper liquid separation pipeline is laterally inserted into the upper horizontal space, and the gas outlet end of the upper liquid separation pipeline maintains a preset distance from the inner side of the aligned gas guide grid;

[0037] The middle liquid separation pipeline is laterally inserted into the middle horizontal space, and the gas outlet end of the middle liquid separation pipeline maintains a preset distance from the inner side of the aligned gas guide grid;

[0038] The lower liquid separation pipeline is laterally penetrated into the lower horizontal space, and the gas outlet end of the lower liquid separation pipeline maintains a preset distance from the inner side of the aligned gas guide grid;

[0039] The air guide grid is provided with a plurality of transverse holes, and the edge of the air guide grid is sealed and connected to the low-temperature medium inlet of the refrigeration chamber.

[0040] Preferably, it also includes an upper temperature sensor, an intermediate temperature sensor and a lower temperature sensor which are arranged on the inner wall of the freezing chamber at intervals from top to bottom; the upper temperature sensor, the intermediate temperature sensor and the lower temperature sensor are respectively used to monitor the temperature at corresponding position heights in the freezing chamber.

[0041] Preferably, it also includes a lifting platform, a lifting platform adjustment button and a lifting platform adjustment button arranged in the freezing chamber;

[0042] The lifting platform includes a lifting platform surface and a lifting platform column, wherein the lower end of the lifting platform column is arranged on the bottom plate of the freezing chamber, and the upper end of the lifting platform column is arranged under the lifting platform surface to support the lifting platform surface to rise and fall;

[0043] The lifting platform adjustment button and the lifting platform adjustment button are arranged on the inner wall of the freezing chamber from top to bottom, and when the user stands on the lifting platform surface, the lifting platform adjustment button and the lifting platform adjustment button are within the user's touch range.

[0044] Preferably, a median marking line is also provided on the inner wall of the freezing chamber, and the median marking line is provided beside the lifting platform adjustment button and the lifting platform adjustment button, and the median marking line is used to finally align the user's abdomen with the median marking line as the lifting platform rises and falls.

[0045] Preferably, it further comprises a freezing chamber display screen which is arranged above the inner wall of the freezing chamber and can be adjusted in position, and a pre-cooling chamber display screen which is arranged outside the pre-cooling chamber;

[0046] The freezing chamber display screen is used to display the temperature in the freezing chamber to the user;

[0047] The pre-cooling chamber display screen is used to display the temperature in the pre-cooling chamber to the user.

[0048] Preferably, it also includes a microphone intercom, a switchable narrow window and an emergency pull ring arranged in the freezing chamber; wherein:

[0049] The microphone intercom is arranged on the inner wall of the freezing chamber and is within the user's reach, and is used for the user to communicate with people outside the freezing chamber;

[0050] The narrow window is provided on the freezing chamber above the freezing chamber display screen, and is used for a user to open and observe the situation outside the freezing chamber;

[0051] The emergency pull ring is arranged on the inner wall of the freezing chamber and is within the touch range of the user. The emergency pull ring is used by the user to pull down the emergency pull ring in an emergency so that the equipment program stops the cold therapy program and the freezing chamber door automatically opens.

[0052] The above technical solution has the following beneficial effects: the freezing chamber is refrigerated by the equipment control room, and the sealing structure of the freezing chamber makes it difficult for the low-temperature gas entering the freezing chamber to leak, so that the low temperature of the freezing chamber can be maintained. When the temperature of the freezing chamber is higher than the preset range, the gas in the freezing chamber is gradually discharged into the precooling chamber to achieve the purpose of precooling the precooling chamber. The user first enters the precooling chamber, precools in the precooling chamber, and then enters the sealed freezing chamber, and the conditioning program begins.

[0053] If there is no precooling chamber, the user enters the freezing chamber directly from the outside, or comes out of the freezing chamber and goes directly to the outside. Then, the process of the user entering and exiting the freezing chamber will cause the temperature in the freezing chamber to rise rapidly, which not only prolongs the refrigeration time in the freezing chamber, but also causes energy loss. The gas discharged from the freezing chamber during use has a very low temperature, and it is a waste to discharge it directly. The gas in the freezing chamber is gradually discharged into the precooling chamber to precool the user, avoiding direct discharge into the atmosphere and causing waste, and giving the user a transition process. In addition, because the precooling chamber is lower than the normal temperature of the outside world, when the user enters the freezing chamber from the precooling chamber, the temperature rise in the freezing chamber will be reduced, thereby reducing the refrigeration time in the freezing chamber, that is, reducing energy loss, and achieving the purpose of improving refrigeration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0055] Figure 1 is a front view of a structural principle diagram of a cold therapy device according to an embodiment of the present invention;

[0056] Figure 2 Figure 1 A top view of

[0057] Figure 3 is a front view of a cold therapy device according to an embodiment of the present invention;

[0058] Figure 4 Figure 3 A top view of

[0059] Figure 5 yes Figure 3 perspective drawing;

[0060] Figure 6 is a diagram of a liquid nitrogen refrigeration device according to an embodiment of the invention;

[0061] Figure 7 is a diagram of the internal structure of a freezing chamber of an embodiment of the invention;

[0062] Figure 8 is a structural diagram of a precooling chamber of an embodiment of the invention;

[0063] Fig. 9 is a schematic diagram of an electric refrigerant supply unit of an embodiment of the invention;

[0064] Fig.10 is a schematic diagram of a refrigeration unit according to an embodiment of the invention.

[0065] The reference numerals are as follows:

[0066] 1. Equipment control room; 2. Refrigeration chamber; 3. Pre-cooling chamber; 5. Refrigeration chamber cold air outlet; 6. Refrigeration chamber door; 7. Pre-cooling chamber door; 11. Refrigeration chamber oxygen inlet; 12. Refrigeration chamber low-temperature medium inlet; 16. User; 17. Liquid nitrogen tank; 19. Liquid nitrogen outlet; 100. Liquid nitrogen main pipe; 20. Liquid nitrogen liquid separation valve; 21A. Upper liquid nitrogen nozzle control valve; 21B. Middle liquid nitrogen nozzle control valve; 21C. Lower liquid nitrogen nozzle control valve; 110A. Upper liquid separation pipeline; 110B. Middle liquid separation pipeline; 110C. Lower liquid separation pipeline; 200. Airflow guide cover; 201. Cover bottom plate; 202. Side ring; 22. Air guide grid; 23. Transverse partition; 24A. Upper temperature Sensor; 24B, middle temperature sensor; 24C, lower temperature sensor; 25, microphone intercom; 26, emergency pull ring; 27, narrow window; 28, freezer compartment display screen; 29A, lift adjustment button; 29B, lift adjustment button; 30, lift table; 31, lift column; 34, gap; 35, pre-cooling compartment display screen; 36A, upper refrigeration plate; 36B, middle refrigeration plate; 36C, lower refrigeration plate; 37A, upper refrigeration pipe; 37B, middle refrigeration pipe; 37C, lower refrigeration pipe; 38A, upper refrigeration pipe control valve; 38B, middle refrigeration pipe control valve; 38C, lower refrigeration pipe control valve; 39, electric refrigeration compressor; 40, refrigerant tank;

[0067] 18. Liquid nitrogen level; 42. Connecting pipe; 43. Condenser; 41A. Upper liquid return pipe; 41B. Middle liquid return pipe; 41C. Lower liquid return pipe. DETAILED DESCRIPTION

[0068] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] like Figures 1 to 8 As shown, in combination with an embodiment of the present invention, a cryotherapy device comprises an equipment control room 1, a freezing chamber 2 and a pre-cooling chamber 3 which are sequentially connected;

[0070] The freezing chamber 2 is used to perform cold therapy on the user 16;

[0071] The equipment control room 1 is disposed at a first side of the freezing chamber 2 and can be connected to the first side of the freezing chamber 2. The equipment control room 1 can refrigerate the freezing chamber 2.

[0072] The precooling chamber 3 is arranged at the second side of the freezing chamber 2, and the freezing chamber 2 has a freezing chamber cold air outlet 5 leading to the precooling chamber 3, and the freezing chamber cold air outlet 5 is used to gradually discharge the gas in the freezing chamber 2 into the precooling chamber 3, and the gas discharged into the precooling chamber 3 is used to precool the precooling chamber 3;

[0073] A freezing chamber door 6 is provided on the second side of the freezing chamber 2 for allowing a user 16 to directly enter the freezing chamber 2 from the pre-cooling chamber 3 .

[0074] In the prior art, the temperature in the freezing chamber 2 is very low (-80℃~-160℃) compared to normal room temperature, and the freezing chamber door 6 is generally large because people need to enter and exit freely. Therefore, when the door is opened, room temperature air squeezes in, and the cold air dissipates very quickly, which will cause the temperature in the freezing chamber 2 to rise rapidly in 1 second. If you want to continue using it, you need to refrigerate the freezing chamber again.

[0075] In the embodiment of the present invention, the freezing chamber 2 is refrigerated by the equipment control room 1, and the sealing structure of the freezing chamber 2 makes it difficult for the low-temperature gas entering the freezing chamber 2 to leak, so that the low temperature of the freezing chamber 2 can be maintained.

[0076] The gas in the freezing chamber 2 is a mixture of low-temperature gas, breathing gas and exhaled gas, but the temperature of the mixed gas in the freezing chamber 2 is still very low, so it can still be discharged to the precooling chamber 3 to precool the precooling chamber 3. The user 16 first enters the precooling chamber 3, precools in the precooling chamber 3, and then enters the sealed freezing chamber 2, and the conditioning program begins.

[0077] If there is no precooling chamber 3, the user 16 directly enters the freezing chamber 2 from the outside, or directly goes out of the freezing chamber 2 to the outside, then the process of the user 16 entering and exiting the freezing chamber 2 will cause the temperature in the freezing chamber 2 to rise rapidly, which not only prolongs the refrigeration time in the freezing chamber 2, but also causes energy loss. The gas discharged from the freezing chamber 2 during use has a very low temperature, and it is a waste to discharge it directly. The gas in the freezing chamber 2 is gradually discharged into the precooling chamber 3 to precool the user, avoiding direct discharge into the atmosphere to cause waste, and giving the user 16 a transition process. In addition, because the precooling chamber 3 is lower than the normal temperature of the outside, when the user 16 enters the freezing chamber 2 from the precooling chamber 3, the temperature in the freezing chamber 2 will not rise rapidly, so the refrigeration time in the freezing chamber 2 is reduced, that is, the energy loss is reduced, and the purpose of improving the refrigeration efficiency is achieved.

[0078] In addition, the user 16 can also change clothes in the pre-cooling chamber 3 to avoid the embarrassment of entering and exiting naked, thereby improving the user experience.

[0079] Preferably, the precooling cabin 3 includes a precooling cabin door 7 for the user 16 to enter the precooling cabin 3 from the outside, and the user is used to enter and exit the precooling cabin 3 through the precooling cabin door 7. The precooling cabin 3 is a positive pressure cabin. When the precooling cabin door 7 is in a closed state, there is a gap 34 between the door frame, which is used to gradually discharge the gas in the precooling cabin 3 to the outside, so that the gas in the freezing cabin 2 can be discharged to the precooling cabin 3. Only then can the equipment control room 1 provide the freezing cabin 2 with the low-temperature medium required for cold therapy of the user 16, and maintain the continuous low temperature of the freezing cabin 2.

[0080] Preferably, the first side of the freezing chamber 2 has a first side wall shared with the equipment control room 1, and the first side wall has a freezing chamber oxygen inlet 11;

[0081] The equipment control room 1 is provided with a control device and an oxygen supply device. The control device has a control program, and the control program is used to control the oxygen supply device to transport the oxygen in the oxygen supply device from the oxygen inlet 11 of the freezing chamber to the freezing chamber 2 to meet the cold therapy and normal breathing of the user 16.

[0082] Because oxygen is provided in the freezing chamber 2, too much oxygen also needs an outlet. But the gas temperature in the freezing chamber 2 is still very low, so it can be discharged to the precooling chamber 3 for precooling the precooling chamber 3.

[0083] Preferably, a liquid nitrogen refrigeration device is also provided in the equipment control room 1; and / or, an electric refrigerant supply unit is also provided in the equipment control room 1, a refrigeration unit is provided on the inner ring wall of the freezing chamber 2, and the refrigeration unit can be connected to the electric refrigerant supply unit, and the inner ring wall includes the inner wall of the first side wall, wherein the electric refrigeration device includes the electric refrigerant supply unit and the refrigeration unit, and the electric refrigeration device can cool the freezing chamber 2.

[0084] At least one method is used to reduce the temperature of the freezing chamber 2 to the temperature required for cold therapy, which is fast and convenient.

[0085] In addition, when liquid nitrogen is used for refrigeration, liquid nitrogen is provided to the freezing chamber 2, and the liquid nitrogen also needs an outlet, but the gas temperature in the freezing chamber 2 is still very low, so it can be discharged to the precooling chamber 3 to precool the precooling chamber 3.

[0086] Preferably, if Fig. 9As shown, the electric refrigerant supply unit includes an electric refrigeration compressor 39, a refrigerant tank 40, an upper refrigeration pipe 37A, a middle refrigeration pipe 37B, a lower refrigeration pipe 37C, an upper refrigeration pipe control valve 38A, a middle refrigeration pipe control valve 38B and a lower refrigeration pipe control valve 38C, the electric refrigeration compressor 39 is connected to the refrigerant tank 40, and the electric refrigeration compressor 39 is also respectively connected to the upper refrigeration pipe 37A, the middle refrigeration pipe 37B and the lower refrigeration pipe 37C; the electric refrigeration compressor 39 is used to push the refrigerant in the refrigerant tank 40 to the upper refrigeration pipe 37A, the middle refrigeration pipe 37B and the lower refrigeration pipe 37C respectively;

[0087] The upper refrigeration pipe control valve 38A is provided on the upper refrigeration pipe 37A, and is used to control the flow rate of the refrigerant in the upper refrigeration pipe 37A;

[0088] The intermediate cooling pipe control valve 38B is provided on the intermediate cooling pipe 37B, and is used to control the flow rate of the refrigerant in the intermediate cooling pipe 37B;

[0089] The lower refrigeration pipe control valve 38C is provided on the lower refrigeration pipe 37C, and is used to control the flow rate of the refrigerant in the lower refrigeration pipe 37C;

[0090] like Fig.10 As shown, the refrigeration unit includes an upper refrigeration plate 36A, a middle refrigeration plate 36B and a lower refrigeration plate 36C which are spaced apart from top to bottom;

[0091] The upper refrigeration plate 36A is connected to the upper refrigeration pipe 37A to receive the refrigerant in the upper refrigeration pipe 37A;

[0092] The intermediate cooling plate 36B is connected to the intermediate cooling pipe 37B to receive the refrigerant in the intermediate cooling pipe 37B.

[0093] The lower refrigeration plate 36C is connected to the lower refrigeration pipe 37C for receiving the refrigerant in the lower refrigeration pipe 37C.

[0094] The refrigerant in the refrigerant tank 40 is compressed by the electric refrigeration compressor 39, so that the refrigerant becomes a high-temperature and high-pressure gas form. The high-temperature and high-pressure gas form refrigerant enters the condenser 43 through the connecting pipe 42, and the condenser 43 condenses the high-temperature and high-pressure gas form refrigerant into a liquid state. The liquid refrigerant enters the upper refrigeration plate 36A, the middle refrigeration plate 36B and the lower refrigeration plate 36C through the upper refrigeration pipe 37A, the middle refrigeration pipe 37B and the lower refrigeration pipe 37C respectively. The liquid refrigerant evaporates and becomes a gaseous state in the refrigeration plate 36A, the middle refrigeration plate 36B and the lower refrigeration plate 36C on the refrigeration plate, so as to cool down the refrigeration compartment 2, and then returns to the electric refrigeration compressor 39 through the upper return liquid pipe 41A, the middle return liquid pipe 41B and the lower return liquid pipe 41C respectively to continue compression, and continue the circulation refrigeration.

[0095] Preferably, the first side of the refrigerating chamber 2 has a first side wall shared with the equipment control room 1, and the first side wall has a refrigerating chamber low-temperature medium inlet 12;

[0096] The control device has a control program, and the control program is used to control the liquid nitrogen refrigeration device to transport the cryogenic medium in the liquid nitrogen refrigeration device from the cryogenic medium inlet 12 of the refrigeration chamber to the refrigeration chamber 2, and to automatically maintain the temperature in the refrigeration chamber 2 at the low temperature set for the refrigeration chamber 2 by the control program according to the temperature feedback in the refrigeration chamber 2;

[0097] The liquid nitrogen refrigeration equipment includes a liquid nitrogen tank 17, a liquid nitrogen outlet 19, a liquid nitrogen main pipe 100, a liquid nitrogen liquid separation valve 20, an upper liquid separation pipeline 110A, a middle liquid separation pipeline 110B, a lower liquid separation pipeline 110C, an upper liquid nitrogen nozzle control valve 21A, a middle liquid nitrogen nozzle control valve 21B and a lower liquid nitrogen nozzle control valve 21C; the liquid separation pipe 110A, the middle liquid separation pipe 110B and the lower liquid separation pipe 110C are connected to the low-temperature medium inlet 12 described above.

[0098] The inlet of the liquid nitrogen main pipe 100 is connected to the liquid nitrogen tank 17 through the liquid nitrogen outlet 19. The liquid nitrogen level 18 in the liquid nitrogen tank 17 indicates the height of the liquid nitrogen. The outlet of the liquid nitrogen main pipe 100 is connected to the inlet of the liquid nitrogen liquid separation valve 20.

[0099] The outlet of the liquid nitrogen liquid separation valve 20 is connected to the upper liquid separation pipeline 110A, the middle liquid separation pipeline 110B and the lower liquid separation pipeline 110C, and the liquid nitrogen liquid separation valve 20 is used to separate the liquid nitrogen in the liquid nitrogen main pipe 100 into the upper liquid separation pipeline 110A, the middle liquid separation pipeline 110B and the lower liquid separation pipeline 110C;

[0100] The upper liquid nitrogen nozzle control valve 21A is arranged on the upper liquid separation pipeline 110A;

[0101] The middle liquid nitrogen nozzle control valve 21B is arranged on the middle liquid separation pipeline 110B;

[0102] The lower liquid nitrogen nozzle control valve 21C is arranged on the lower liquid separation pipeline 110C;

[0103] The outlet of the upper liquid separation pipe 110A, the outlet of the middle liquid separation pipe 110B, and the outlet of the lower liquid separation pipe 110C can be connected to the low-temperature medium inlet 12 of the freezing chamber to discharge the liquid nitrogen into the freezing chamber 2, so as to achieve uniform transportation of liquid nitrogen within the spatial range of the freezing chamber 2 as much as possible, so that the temperature of the freezing chamber 2 in the spatial range can quickly reach a uniform level.

[0104] Preferably, the liquid nitrogen refrigeration equipment further comprises an airflow guide cover 200, and the upper liquid separation pipe 110A, the middle liquid separation pipe 110B and the lower liquid separation pipe 110C are respectively inserted into the airflow guide cover 200 transversely;

[0105] The airflow guide cover 200 includes a cover bottom plate 201, an air guide grid 22, a side ring 202 and two transverse partitions 23. The air guide grid 22 and the cover bottom plate 201 are both vertically arranged and arranged opposite to each other. The cover bottom plate 201 is arranged at the proximal end of the liquid nitrogen liquid separation valve 20, and the air guide grid 22 is arranged at the proximal end of the low-temperature medium inlet 12 of the refrigeration chamber.

[0106] The cover bottom plate 201 is sealed and connected to the first opening of the side ring 202, and the edge of the air guide grille 22 is sealed and connected to the second opening of the side ring 202;

[0107] The transverse baffles 23 are arranged in the side ring 202 at intervals up and down, and each of the transverse baffles 23 is sealed and connected to the inner wall of the side ring 202, the inner side of the cover bottom plate 201, and the inner side of the air guide grille 22, so as to divide the airflow guide cover 200 into three horizontal spaces: an upper horizontal space, a middle horizontal space, and a lower horizontal space;

[0108] The upper liquid separation pipe 110A penetrates into the upper horizontal space laterally, and the gas outlet end of the upper liquid separation pipe 110A maintains a preset distance from the inner side of the aligned gas guide grid 22;

[0109] The middle liquid separation pipe 110B penetrates into the middle horizontal space laterally, and the gas outlet end of the middle liquid separation pipe 110B maintains a preset distance from the inner side of the aligned gas guide grid 22;

[0110] The lower liquid distributing pipe 110C penetrates into the lower horizontal space laterally, and the gas outlet end of the lower liquid distributing pipe 110C maintains a preset distance from the inner side of the aligned gas guide grid 22;

[0111] The air guide grid 22 has a plurality of transverse holes, and the edge of the air guide grid 22 is sealed and connected to the low-temperature medium inlet 12 of the refrigeration chamber.

[0112] The airflow guide hood 200 is divided into three horizontal spaces: an upper horizontal space, a middle horizontal space and a lower horizontal space, so that liquid nitrogen can be evenly transported within the spatial range of the freezing chamber 2 as much as possible, so that the temperature of the freezing chamber 2 in the spatial range can quickly reach a uniform level.

[0113] Preferably, it also includes an upper temperature sensor 24A, an intermediate temperature sensor 24B and a lower temperature sensor 24C which are arranged on the inner wall of the freezing chamber 2 at intervals from top to bottom; the upper temperature sensor 24A, the intermediate temperature sensor 24B and the lower temperature sensor 24C are respectively used to monitor the temperature at the corresponding position height in the freezing chamber 2, so as to realize temperature monitoring within the spatial range of the entire freezing chamber 2, and can feed back to the control program of the control device.

[0114] Preferably, it also includes a lifting platform, a lifting platform adjustment button 29A and a lifting platform adjustment button 29B arranged in the freezing chamber 2;

[0115] The lifting platform includes a lifting platform surface 30 and a lifting platform column 31, wherein the lower end of the lifting platform column 31 is arranged on the bottom plate of the freezing chamber 2, and the upper end of the lifting platform column 31 is arranged below the lifting platform surface 30 to support the lifting platform surface 30 to rise and fall;

[0116] The lift adjustment buttons 29A and 29B are arranged on the inner wall of the freezing chamber 2 , and when the user 16 stands on the lift table 30 , the lift adjustment buttons 29A and 29B are within the touch range of the user 16 .

[0117] The user 16 adjusts himself to a suitable position for cold therapy through the lift adjustment button 29A or the lift adjustment button 29B.

[0118] Preferably, a median marking line is also provided on the inner wall of the freezing chamber 2, and the median marking line is arranged next to the lifting platform adjustment button 29A and the lifting platform adjustment button 29B. The median marking line is used to finally align the abdomen of the user 16 with the median marking line as the lifting platform rises and falls. The median marking line is set in advance so that the user 16 can quickly adjust himself to the appropriate position required for cold therapy through the lifting platform adjustment button 29A or the lifting platform adjustment button 29B.

[0119] Preferably, it further comprises a freezing chamber display screen 28 which is arranged above the inner wall of the freezing chamber 2 and can be adjusted in position, and a pre-cooling chamber display screen 35 which is arranged outside the pre-cooling chamber 3;

[0120] The freezing chamber display screen 28 is used to display the temperature in the freezing chamber 2 (the temperature detected by the upper temperature sensor 24A, the middle temperature sensor 24B and the lower temperature sensor 24C) and other necessary information to the user 16, so that the user 16 can understand it conveniently. The user 16 can see the content on the freezing chamber display screen 28 during use;

[0121] The precooling chamber display screen 35 is used to display the temperature in the precooling chamber 3 and other necessary information in the precooling chamber 3 to the user 16, so that the user 16 can understand the situation inside the precooling chamber 3 before entering the precooling chamber 3.

[0122] Preferably, it also includes a microphone intercom 25, a switchable narrow window 27 and an emergency pull ring 26 arranged in the freezing chamber 2; wherein:

[0123] The microphone intercom 25 is disposed on the inner wall of the freezing chamber 2 and is within the reach of the user 16 , and is used for the user 16 to communicate with people outside the freezing chamber 2 ;

[0124] The narrow window 27 is provided on the freezing chamber 2 above the freezing chamber display screen 28, and is used for the user 16 to open and observe the situation outside the freezing chamber 2; some users 16 may feel uneasy (claustrophobia) due to the completely enclosed space, so a controllable narrow window 27 is provided as a perspective window, and the user 16 can open it when necessary, so that a more intuitive observation of the inside can be made.

[0125] The emergency pull ring 26 is provided on the inner wall of the freezing chamber 2 and is within the reach of the user 16. The emergency pull ring 26 is used to stop the cold therapy program by the user 16 when an emergency occurs, and the freezing chamber door 6 is automatically opened. When the user 16 is in an unfavorable condition or the cold therapy device is in an abnormal condition, the user 16 can save himself in an emergency.

[0126] In summary, when the cryotherapy device is working, the equipment control room 1 delivers low-temperature cold air to the freezing chamber 2 through the freezing chamber low-temperature medium inlet 12, delivers oxygen through the freezing chamber oxygen inlet 11, and automatically maintains the low temperature state of the freezing chamber 2 set by the setting program. The used gas in the freezing chamber 2 enters the precooling chamber 3 through the freezing chamber cold air outlet 5 (which can adopt the structure of the air guide grid 22). The precooling chamber 3 is a positive pressure chamber, and the gas in the precooling chamber 3 is discharged through the incompletely sealed precooling chamber door 7.

[0127] The user 16 first enters the precooling chamber 3 from the precooling chamber door 7, while the freezing chamber door 6 is closed. After changing clothes, the freezing chamber door 6 is opened to enter the freezing chamber 2, and the conditioning program begins. Among them, except for the freezing chamber oxygen inlet 11, the freezing chamber low-temperature medium inlet 12, and the freezing chamber cold air outlet, the other parts of the freezing chamber 2 are sealed.

[0128] After the cold therapy program is finished, the user 16 returns to the pre-cooling chamber 3 and closes the freezing chamber door 6. After changing clothes, the user 16 comes out through the pre-cooling chamber door 7 and closes it, and the single treatment course is finished.

[0129] It should be understood that in the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly stated in each claim. On the contrary, as reflected in the attached claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the attached claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0130] The disclosed embodiments are described above to enable any person skilled in the art to implement or use the present invention. Various modifications of these embodiments are obvious to those skilled in the art, and the general principles defined herein may also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0131] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

[0132] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cold therapy device, characterized in that: It comprises an equipment control room (1), a freezing chamber (2) and a pre-cooling chamber (3) which are sequentially connected; The freezing chamber (2) is used to perform cold therapy on a user (16), and the freezing chamber (2) is a sealed structure; The equipment control room (1) is arranged on a first side of the freezing chamber (2) and can be connected to the first side of the freezing chamber (2), and the equipment control room (1) can refrigerate the freezing chamber (2); The precooling chamber (3) is arranged on the second side of the freezing chamber (2); the freezing chamber (2) has a freezing chamber cold air outlet (5) leading to the precooling chamber (3); the freezing chamber cold air outlet (5) is used to gradually discharge the gas in the freezing chamber (2) into the precooling chamber (3); the gas discharged into the precooling chamber (3) is used to precool the precooling chamber (3); The second side of the freezing chamber (2) is provided with a freezing chamber door (6) for the user (16) to directly enter the freezing chamber (2) from the pre-cooling chamber (3).

2. The cold therapy device according to claim 1, characterized in that: The precooling chamber (3) comprises a precooling chamber door (7) for allowing the user (16) to enter the precooling chamber (3) from the outside, and a gap (34) is formed between the precooling chamber door (7) and the door frame when the precooling chamber door (7) is in a closed state.

3. The cold therapy device according to claim 1, characterized in that: The first side of the refrigeration chamber (2) has a first side wall shared with the equipment control room (1), and the first side wall has a refrigeration chamber oxygen inlet (11); The equipment control room (1) is provided with a control device and an oxygen supply device. The control device has a control program, and the control program is used to control the oxygen supply device to transport the oxygen in the oxygen supply device from the refrigerating chamber oxygen inlet (11) to the refrigerating chamber (2).

4. The cold therapy device according to claim 1, characterized in that: The equipment control room (1) is also provided with a liquid nitrogen refrigeration device; and / or, the equipment control room (1) is also provided with an electric refrigerant supply unit, a refrigeration unit is provided on the inner ring wall of the freezing chamber (2), the refrigeration unit can be connected to the electric refrigerant supply unit, the inner ring wall includes the inner wall of the first side wall, wherein the electric refrigeration device includes the electric refrigerant supply unit and the refrigeration unit, and the electric refrigeration device can cool the freezing chamber (2).

5. The cold therapy device according to claim 4, characterized in that: The electric refrigerant supply unit comprises an electric refrigeration compressor (39), a refrigerant tank (40), an upper refrigerant pipe (37A), a middle refrigerant pipe (37B), a lower refrigerant pipe (37C), an upper refrigerant pipe control valve (38A), a middle refrigerant pipe control valve (38B) and a lower refrigerant pipe control valve (38C); the electric refrigeration compressor (39) is connected to the refrigerant tank (40); the electric refrigeration compressor (39) is also respectively connected to the upper refrigerant pipe (37A), the middle refrigerant pipe (37B) and the lower refrigerant pipe (37C); the electric refrigeration compressor (39) is used to push the refrigerant in the refrigerant tank (40) into the upper refrigerant pipe (37A), the middle refrigerant pipe (37B) and the lower refrigerant pipe (37C); The upper refrigeration pipe control valve (38A) is arranged on the upper refrigeration pipe (37A) and is used to control the flow rate of the refrigerant in the upper refrigeration pipe (37A); The intermediate refrigeration pipe control valve (38B) is arranged on the intermediate refrigeration pipe (37B) and is used to control the flow rate of the refrigerant in the intermediate refrigeration pipe (37B); The lower refrigeration pipe control valve (38C) is arranged on the lower refrigeration pipe (37C) and is used to control the flow rate of the refrigerant in the lower refrigeration pipe (37C); The refrigeration unit comprises an upper refrigeration plate (36A), a middle refrigeration plate (36B) and a lower refrigeration plate (36C) which are spaced apart from top to bottom; The upper refrigeration plate (36A) is connected to the upper refrigeration tube (37A) for receiving the refrigerant in the upper refrigeration tube (37A); The intermediate cooling plate (36B) is connected to the intermediate cooling pipe (37B) for receiving the refrigerant in the intermediate cooling pipe (37B). The lower refrigeration plate (36C) is connected to the lower refrigeration pipe (37C) for receiving the refrigerant in the lower refrigeration pipe (37C).

6. The cold therapy device according to claim 4, characterized in that: The first side of the refrigerating chamber (2) has a first side wall shared with the equipment control room (1), and the first side wall has a refrigerating chamber low-temperature medium inlet (12); The control device has a control program, the control program is used to control the liquid nitrogen refrigeration device to transport the low-temperature medium in the liquid nitrogen refrigeration device from the low-temperature medium inlet (12) of the refrigeration chamber to the refrigeration chamber (2), and is used to automatically maintain the temperature in the refrigeration chamber (2) at a low temperature set for the refrigeration chamber (2) by the control program according to temperature feedback in the refrigeration chamber (2); The liquid nitrogen refrigeration equipment comprises a liquid nitrogen tank (17), a liquid nitrogen outlet (19), a liquid nitrogen main pipe (100), a liquid nitrogen liquid separation valve (20), an upper liquid separation pipeline (110A), a middle liquid separation pipeline (110B), a lower liquid separation pipeline (110C), an upper liquid nitrogen nozzle control valve (21A), a middle liquid nitrogen nozzle control valve (21B) and a lower liquid nitrogen nozzle control valve (21C); The inlet of the liquid nitrogen main pipe (100) is connected to the liquid nitrogen tank (17) through the liquid nitrogen outlet (19), and the outlet of the liquid nitrogen main pipe (100) is connected to the inlet of the liquid nitrogen liquid separation valve (20); The outlet of the liquid nitrogen liquid separation valve (20) is connected to the upper liquid separation pipeline (110A), the middle liquid separation pipeline (110B) and the lower liquid separation pipeline (110C), and the liquid nitrogen liquid separation valve (20) is used to separate the liquid nitrogen in the liquid nitrogen main pipe (100) into the upper liquid separation pipeline (110A), the middle liquid separation pipeline (110B) and the lower liquid separation pipeline (110C); The upper liquid nitrogen spray pipe control valve (21A) is arranged on the upper liquid separation pipeline (110A); The middle liquid nitrogen nozzle control valve (21B) is arranged on the middle liquid separation pipeline (110B); The lower liquid nitrogen spray pipe control valve (21C) is arranged on the lower liquid separation pipeline (110C); The outlet of the upper liquid separation pipe (110A), the outlet of the middle liquid separation pipe (110B), and the outlet of the lower liquid separation pipe (110C) can be connected to the low-temperature medium inlet (12) of the freezing chamber to discharge the liquid nitrogen into the freezing chamber (2).

7. The cold therapy device according to claim 6, characterized in that: The liquid nitrogen refrigeration equipment further comprises an airflow guide cover (200), wherein the upper liquid separation pipeline (110A), the middle liquid separation pipeline (110B) and the lower liquid separation pipeline (110C) respectively penetrate into the airflow guide cover (200) in a transverse direction; The airflow guide cover (200) comprises a cover bottom plate (201), an air guide grid (22), a side ring (202) and two transverse partitions (23); the air guide grid (22) and the cover bottom plate (201) are both arranged vertically and opposite to each other; the cover bottom plate (201) is arranged at the proximal end of the liquid nitrogen liquid separation valve (20); and the air guide grid (22) is arranged at the proximal end of the low-temperature medium inlet (12) of the refrigeration chamber; The cover bottom plate (201) is sealed and connected to a first opening of the side ring (202), and the edge of the air guide grille (22) is sealed and connected to a second opening of the side ring (202); The transverse baffles (23) are arranged in the side ring (202) at intervals up and down, and each of the transverse baffles (23) is sealed and connected to the inner wall of the side ring (202), the inner side of the cover bottom plate (201), and the inner side of the air guide grille (22), so as to divide the airflow guide cover (200) into three horizontal spaces: an upper horizontal space, a middle horizontal space, and a lower horizontal space; The upper liquid separation pipeline (110A) penetrates into the upper horizontal space transversely, and the gas outlet end of the upper liquid separation pipeline (110A) maintains a preset distance from the inner side of the aligned gas guide grid (22); The middle liquid separation pipeline (110B) penetrates into the middle horizontal space laterally, and the gas outlet end of the middle liquid separation pipeline (110B) maintains a preset distance from the inner side of the aligned gas guide grid (22); The lower liquid separation pipeline (110C) penetrates into the lower horizontal space laterally, and the gas outlet end of the lower liquid separation pipeline (110C) maintains a preset distance from the inner side of the aligned gas guide grid (22); The air guide grid (22) is provided with a plurality of transverse holes, and the edge of the air guide grid (22) is sealed and connected to the low-temperature medium inlet (12) of the refrigeration chamber.

8. The cold therapy device according to claim 1, characterized in that: It also includes an upper temperature sensor (24A), an intermediate temperature sensor (24B) and a lower temperature sensor (24C) which are arranged on the inner wall of the freezing chamber (2) at intervals from top to bottom; the upper temperature sensor (24A), the intermediate temperature sensor (24B) and the lower temperature sensor (24C) are respectively used to monitor the temperature at the corresponding position height in the freezing chamber (2).

9. The cold therapy device according to claim 1, characterized in that: It also includes a lifting platform, a lifting platform adjustment button (29A) and a lifting platform adjustment button (29B) arranged in the freezing chamber (2); The lifting platform comprises a lifting platform surface (30) and a lifting platform column (31), wherein the lower end of the lifting platform column (31) is arranged on the bottom plate of the freezing chamber (2), and the upper end of the lifting platform column (31) is arranged below the lifting platform surface (30) for supporting the lifting platform surface (30) to rise and fall; The lifting platform adjustment button (29A) and the lifting platform adjustment button (29B) are arranged on the inner wall of the freezing chamber (2) at upper and lower positions, and when the user (16) stands on the lifting platform surface (30), the lifting platform adjustment button (29A) and the lifting platform adjustment button (29B) are within the touch range of the user (16); A median marking line is also provided on the inner wall of the freezing chamber (2), and the median marking line is provided beside the lifting platform adjustment button (29A) and the lifting platform adjustment button (29B). The median marking line is used to finally align the abdomen of the user (16) with the median marking line as the lifting platform rises and falls.

10. The cold therapy device according to claim 1, characterized in that: It also includes a freezing chamber display screen (28) which is arranged on the upper side of the inner wall of the freezing chamber (2) and whose position can be adjusted, and a pre-cooling chamber display screen (35) which is arranged outside the pre-cooling chamber (3); The freezing chamber display screen (28) is used to display the temperature in the freezing chamber (2) to the user (16); The pre-cooling chamber display screen (35) is used to display the temperature in the pre-cooling chamber (3) to the user (16); The cryotherapy device further comprises a microphone intercom (25), a switchable narrow window (27) and an emergency pull ring (26) arranged in the freezing chamber (2); wherein: The microphone intercom (25) is arranged on the inner wall of the freezing chamber (2) and is within the reach of the user (16), and is used for the user (16) to communicate with people outside the freezing chamber (2); The narrow window (27) is arranged on the freezing chamber (2) above the freezing chamber display screen (28), and is used for the user (16) to open and observe the situation outside the freezing chamber (2); The emergency pull ring (26) is arranged on the inner wall of the freezing chamber (2) and is within the touch range of the user (16). The emergency pull ring (26) is used by the user (16) to pull down the emergency pull ring (26) in an emergency situation, so that the device program stops the cold therapy program and the freezing chamber door (6) automatically opens.

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