Cold compress machine

Abstract

The utility model discloses a cold compress machine, comprising: a box body having a receiving cavity for receiving a liquid; the box cover is suitable for being arranged above the box body in a covering mode, the box cover comprises a cover body, a water inlet and outlet module and a control module, and the cover body is provided with a containing space for containing the water inlet and outlet module and the control module; the water feeding and discharging module enables the liquid to circulate between the box body and the cold compress bag, so that the cold compress machine works in a cold therapy mode, and the water feeding and discharging module enables the liquid in the cold compress bag to be discharged, so that the cold compress machine works in a water discharging mode; the control module is used for controlling the water feeding and discharging module, so that the cold compress machine works in a cold therapy mode or a water discharging mode; the water diversion structure extends from the cover body to the bottom of the box body, and the water diversion structure is communicated with the containing cavity and the water inlet and drainage module.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and in particular to a cold compress machine. Background Technology

[0002] Cryotherapy utilizes substances at temperatures below body temperature applied to the skin's surface. Through nerve conduction, it causes vasoconstriction in the skin and internal organs, altering the body's fluid circulation and metabolism to achieve therapeutic effects. In the medical field, cryotherapy, as a physical therapy method, has been widely used to treat various diseases and injuries, reducing local bleeding, alleviating edema, relieving pain, and relieving spasms.

[0003] In related technologies, cold compress machines are used in conjunction with cold compress bags. The cold compress bags are strapped to the patient's limbs, allowing the machine to circulate ice water between the cold compress bags and a water tank, thereby cooling or pressurizing the patient's limbs. After use, the liquid remains in the cold compress bags, which may breed bacteria; when used again, the liquid in the cold compress bags circulates back to the water tank, contaminating the new ice water mixture and compromising hygiene. Summary of the Invention

[0004] One object of the present invention is to provide a cold compress machine that helps to prevent liquid from remaining in the cold compress bag.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a cold compress machine, comprising: a housing having a receiving cavity for holding liquid; a lid adapted to cover the housing, the lid including a cover body, an inlet / drainage module, and a control module, the cover body having a receiving space for accommodating the inlet / drainage module and the control module; the inlet / drainage module allowing liquid to circulate between the housing and the cold compress bag, so that the cold compress machine operates in a cold therapy mode, and the inlet / drainage module allowing liquid in the cold compress bag to drain, so that the cold compress machine operates in a drainage mode; the control module controlling the inlet / drainage module to make the cold compress machine operate in the cold therapy mode or the drainage mode; and a water-guiding structure extending from the cover body to the bottom of the housing, the water-guiding structure connecting the receiving cavity and the inlet / drainage module.

[0006] As a preferred embodiment, the cold compress machine further includes a pressurizing module, which inflates the cold compress bag with air, causing the cold compress machine to operate in pressurizing mode; when the cold compress machine is operating in the drainage mode, the pressurizing module inflates the cold compress bag with air to compress the cold compress bag; the control module controls the inlet / outlet module and the pressurizing module to cause the cold compress machine to operate in at least one of the pressurizing mode, the cold therapy mode, and the drainage mode.

[0007] As a preferred embodiment, the water-diverting structure is tapered in shape, wider at the top and narrower at the bottom, along its extension direction.

[0008] As a preferred embodiment, the water-guiding structure includes a main body and a plurality of outer arc portions, the outer arc portions surrounding the outer periphery of the main body and protruding radially from the main body, so that the water-guiding structure is a cone shape that is larger at the top and smaller at the bottom.

[0009] As a preferred embodiment, the water intake structure has several water inlets and at least one water outlet. The water inlets are located at the end of the water intake structure and are positioned opposite to the bottom of the housing. The water inlets allow liquid from the receiving cavity to enter the water inlet / drainage module. The water outlet is located above the water inlets and allows liquid from the water inlet / drainage module to be discharged into the receiving cavity.

[0010] As a preferred embodiment, the distance from the end of the water-guiding structure to the bottom of the tank is less than 5 cm.

[0011] As a preferred embodiment, the cold compress machine further includes a pipe fitting disposed within the water intake structure. The pipe fitting includes a plate, a main pipe, and a secondary pipe. The plate is sealed to the water intake structure, defining a water intake gap between the pipe fitting and the water intake structure. The main pipe extends from the plate towards the end of the water intake structure, connecting the water intake gap and the inlet / outlet module, allowing liquid to enter the inlet / outlet module. The secondary pipe is located above the main pipe, extending from the plate towards the side wall of the water intake structure, connecting the water intake gap and the inlet / outlet module, allowing liquid to be discharged into the receiving cavity.

[0012] As a preferred embodiment, the cold compress machine also includes a filter element installed on the main pipe to filter impurities.

[0013] As a preferred embodiment, the pressurization module includes an inflation / deflation assembly and a pressure sensor. The inflation / deflation assembly is able to inflate the cold compress bag with air and to expel the air from the cold compress bag. The pressure sensor is able to sense the air pressure inside the cold compress bag.

[0014] As a preferred embodiment, the housing includes an outer shell and an inner shell, the outer shell being fitted around the outer periphery of the inner shell, defining a space between the outer shell and the inner shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The control module and the inlet / outlet module enable the cold compress machine to operate in drainage mode. The drainage module allows the liquid inside the cold compress bag to be discharged, which helps to prevent the liquid from remaining in the cold compress bag, reduces bacterial growth, and improves hygiene. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a cold compress machine according to some embodiments of this application.

[0018] Figure 2 This is a schematic diagram of the interior of the lid of a cold compress machine according to some embodiments of this application.

[0019] Figure 3 This is a cross-sectional schematic diagram of a cold compress machine according to some embodiments of this application.

[0020] Figure 4 This is a three-dimensional structural diagram of the box cover and water inlet structure according to some embodiments of this application.

[0021] Figure 5 This is a three-dimensional structural diagram of the lower tank cover and the water inlet structure integrally formed according to some embodiments of this application.

[0022] Figure 6 This is a three-dimensional structural schematic diagram of a pipe fitting according to some embodiments of this application.

[0023] In the diagram: 1. Cold compress machine; 10. Handle; 20. Box body; 21. Receiving cavity; 22. Outer shell; 23. Inner shell; 24. Space gap; 30. Box lid; 31. Cover body; 311. Top cover; 312. Bottom cover; 313. Storage space; 32. Inlet and outlet modules; 33. Pressurization module; 34. Control module; 40. Water intake structure; 41. Main body; 42. Outer arc; 43. Water inlet hole; 44. Water outlet hole; 50. Pipe fittings; 51. Plate body; 52. Main pipe; 53. Secondary pipe; 54. Reinforcing rib; 55. Water intake gap; 60. Filter element; 70. Lighting lamp. Detailed Implementation

[0024] The present invention will now be further described in conjunction with specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this invention, it should be noted that directional terms such as "center," "lateral," "longitudinal," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0026] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection, a contact connection, or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] A cold compress machine 1, such as Figures 1-3 As shown, the device includes a housing 20, a lid 30, and a water inlet structure 40. The housing 20 has a receiving cavity 21 for holding liquid. The lid 30 is adapted to cover the housing 20. The lid 30 includes a cover body 31, an inlet / outlet module 32, and a control module 34. The cover body 31 has a receiving space 313 for accommodating the inlet / outlet module 32 and the control module 34. The inlet / outlet module 32 allows liquid to circulate between the housing 20 and the cold compress bag, enabling the cold compress machine 1 to operate in a cold therapy mode; the inlet / outlet module 32 also allows liquid to drain from the cold compress bag, enabling the cold compress machine 1 to operate in a drainage mode. The control module 34 controls the inlet / outlet module 32 to operate the cold compress machine 1 in either a cold therapy mode or a drainage mode. The water inlet structure 40 extends from the lid body 31 to the bottom of the housing 20, connecting the receiving cavity 21 and the inlet / outlet module 32.

[0029] Specifically, the inlet / outlet module 32 is connected to the cold compress bag via at least one inlet pipe to allow liquid to flow from the cold compress machine 1 to the cold compress bag, and the inlet / outlet module 32 is connected to the cold compress bag via at least one return pipe to allow liquid to flow back from the cold compress bag to the cold compress machine 1. The pressurization module 33 is connected to the cold compress bag via at least one air pipe to inflate the cold compress bag.

[0030] It should be understood that the control module 34 and the inlet / outlet module 32 enable the cold compress machine 1 to work in the cold therapy mode. The inlet / outlet module 32 allows the liquid to circulate between the cold compress machine 1 and the cold compress bag. The cold compress bag is tied to the patient's limb, thereby cooling the patient's limb and reducing tissue swelling, bleeding, pain, and inflammation.

[0031] Furthermore, through the control module 34 and the inlet / drainage module 32, the cold compress machine 1 can be put into drainage mode. The inlet / drainage module 32 can drain the liquid in the cold compress bag, which helps to prevent the liquid from remaining in the cold compress bag, reduce bacterial growth, and improve hygiene.

[0032] It is worth mentioning that, compared to setting a drain outlet on the cold compress bag to manually drain the liquid inside, in this embodiment, the liquid inside the cold compress bag is drained using the inlet and outlet module 32, which helps to reduce the workload of medical staff and makes it easier for patients to operate on their own; and it also helps to avoid setting a drain outlet on the cold compress bag, thereby improving the sealing of the cold compress bag.

[0033] In some embodiments, the cold compress machine 1 further includes a pressurizing module 33, which inflates the cold compress bag with air, causing the cold compress machine 1 to operate in pressurizing mode. When the cold compress machine 1 is operating in draining mode, the pressurizing module 33 inflates the cold compress bag with air to compress it, which facilitates the return of liquid to the cold compress machine 1, thereby further reducing the amount of liquid retained in the cold compress bag. The control module 34 controls the inlet / outlet module 32 and the pressurizing module 33 to make the cold compress machine 1 operate in at least one of the pressurizing mode, the cold therapy mode, and the draining mode.

[0034] It should be understood that the control module 34 and the pressurization module 33 enable the cold compress machine 1 to work in pressurization mode. The pressurization module 33 causes the cold compress bag to inflate and expand. The cold compress bag is then bound to the patient's limb, thereby applying pressure to the limb and playing a role in preventing deep vein thrombosis and enhancing venous blood flow in the lower limbs.

[0035] In at least one embodiment, in the early stage of the drainage mode, only the inlet and outlet drainage module 32 works to allow the liquid in the cold compress bag to drain out quickly; in the later stage of the drainage mode, the inlet and outlet drainage module 32 and the pressurization module 33 work simultaneously, so that the pressurization module 33 can inflate the cold compress bag with air, which helps to squeeze the liquid in the cold compress bag toward the return pipe and improve the drainage efficiency.

[0036] In some embodiments, such as Figures 3-5 As shown, along the extension direction of the water-guiding structure 40, the water-guiding structure 40 is conical in shape, wider at the top and narrower at the bottom. This facilitates the sliding off of water droplets remaining on the surface of the water-guiding structure 40, reducing water stains and scale residue on the surface of the water-guiding structure 40, and improving the hygiene of the cold compress machine 1. In addition, the conical structure, wider at the top and narrower at the bottom, is easy to clean. It should be understood that, compared to a straight cylindrical water-guiding structure, the water-guiding structure 40 in this embodiment allows cleaning tools to be inserted more easily, which is conducive to cleaning the water-guiding structure 40 more conveniently and thoroughly.

[0037] In some embodiments, such as Figures 3-5As shown, the water-guiding structure 40 includes a main body 41 and multiple outer arc-shaped portions 42. The outer arc-shaped portions 42 surround the outer periphery of the main body 41 and protrude radially from the main body 41, making the water-guiding structure 40 a cone shape that is larger at the top and smaller at the bottom. It should be understood that the angle between the arc surface at the connection point between the end of the outer arc-shaped portion 42 and the main body 41 and the horizontal plane is small, thus facilitating water droplets to drip directly from the end of the outer arc-shaped portion 42, further reducing water stains and scale residue on the surface of the water-guiding structure 40. Furthermore, the radial dimension of the outer arc-shaped portion 42 is larger than that of the main body 41, which helps to improve the structural strength of the water-guiding structure 40. It is worth mentioning that the combination of multiple main body portions 41 and multiple outer arc-shaped portions 42 makes the water-guiding structure 40 resemble an iceberg, which helps to improve the aesthetics of the water-guiding structure 40.

[0038] In at least one embodiment, the plurality of outer arc portions 42 are irregularly shaped, and the outer arc portions 42 are not entirely the same. In at least one other embodiment, the outer arc portions 42 are ellipsoidal, or elliptic paraboloid, or single-leaf hyperboloid, or double-leaf hyperboloid, etc., and this application does not specify the specific configuration.

[0039] In some embodiments, such as Figure 4 and Figure 5 As shown, the water intake structure 40 has several water inlets 43 and at least one water outlet 44. The water inlets 43 are located at the end of the water intake structure 40 and are positioned opposite to the bottom of the housing 20. The water inlets 43 allow the liquid in the receiving cavity 21 to enter the water inlet and drainage module 32. The water outlet 44 is located above the water inlets 43 and allows the liquid in the water inlet and drainage module 32 to be discharged into the receiving cavity 21.

[0040] In other words, the water inlet 43 is located near the bottom of the housing 20, allowing the inlet / outlet module 32 to draw liquid from the bottom of the receiving cavity 21 into the cooling bag. The water outlet 44 is located above the water inlet 43, either near the housing cover 30 or near the liquid surface, allowing the liquid discharged from the cooling bag to flow to the upper layer of the receiving cavity 21, i.e., to the liquid surface or near the liquid surface. It is understandable that the liquid drawn into the cooling bag is at a lower temperature, while the liquid discharged from the cooling bag is at a higher temperature. Flowing the discharged liquid to the liquid surface helps to slow down the heat transfer of the higher-temperature liquid to the liquid near the bottom of the receiving cavity 21, thus helping to maintain a lower temperature for the liquid at the bottom of the receiving cavity 21.

[0041] In some embodiments, such as Figure 3As shown, the distance H from the end of the water inlet structure 40 to the bottom of the housing 20 is less than 5cm. It should be understood that the water inlet 43 is located at the end of the water inlet structure 40, meaning the water inlet 43 is close to the bottom of the housing 20. It should be understood that the water pressure near the bottom of the housing 20 is higher than near the water surface, which is beneficial for improving water absorption efficiency. Furthermore, it reduces disturbance to the water surface during absorption, facilitating a more stable absorption of water into the cold compress bag. It is worth mentioning that the location of the water inlet 43 near the bottom of the housing 20 also helps prevent air from being drawn into the cold compress bag, further improving the reliability of the cold compress machine 1 and the cold compress bag during use.

[0042] Preferably, the distance H from the end of the water-inlet structure 40 to the bottom of the tank 20 is less than 3 cm. More preferably, the distance H from the end of the water-inlet structure 40 to the bottom of the tank 20 is less than or equal to 1 cm.

[0043] In some embodiments, the cover 31 includes an upper cover 311 and a lower cover 312 adapted to engage with each other, forming an accommodating space 313 between the upper cover 311 and the lower cover 312 to accommodate the inlet / outlet module 32, the pressurization module 33, and the control module 34. Further, as... Figure 3 and Figure 5 As shown, the water-guiding structure 40 is integrally formed on the lower cover 312, which helps to reduce the number of parts, reduce manufacturing costs, and also helps to improve the sealing between the water-guiding structure 40 and the lower cover 312, thereby reducing the risk of water ingress into the various modules in the cover 31, and thus improving the reliability and safety of the cold compress machine 1.

[0044] In some embodiments, such as Figure 3 and Figure 6 As shown, the cold compress machine 1 also includes a pipe fitting 50, which is disposed within the water inlet structure 40. The pipe fitting 50 includes a plate 51, a main pipe 52, and a secondary pipe 53. The plate 51 is sealed to the water inlet structure 40, defining a water inlet gap 55 between the pipe fitting 50 and the water inlet structure 40. The main pipe 52 extends from the plate 51 toward the end of the water inlet structure 40, connecting the water inlet gap 55 and the inlet / outlet module 32, allowing liquid to enter the inlet / outlet module 32. The secondary pipe 53 is located above the main pipe 52, extending from the plate 51 toward the side wall of the water inlet structure 40, connecting the water inlet gap 55 and the inlet / outlet module 32, allowing liquid to be discharged into the receiving cavity 21.

[0045] It should be understood that, under the action of the inlet and outlet modules 32, the liquid in the receiving cavity 21 enters the cold compress bag in sequence through the water inlet hole 43 of the water inlet structure 40, the water inlet gap 55, the main pipe 52 of the pipe fitting 50, and the water inlet pipe, and then flows back to the receiving cavity 21 in sequence through the return pipe of the pipe fitting 50, the secondary pipe 53, the water inlet gap 55, and the water outlet hole 44 of the water inlet structure 40.

[0046] In at least one embodiment, the plate 51 is fixed to the lower cover 312, and a sealing element is provided between the plate 51 and the lower cover 312 to seal the connection between the pipe fitting 50 and the lower cover 312.

[0047] In at least one embodiment, such as Figure 3 and Figure 6 As shown, the pipe fitting 50 also includes several reinforcing ribs 54, which connect the plate 51 and the main pipe 52, thus improving the structural strength of the pipe fitting 50.

[0048] In at least one embodiment, the secondary pipe 53 is positioned opposite to the outlet hole 44 of the water intake structure 40, which facilitates the flow of water discharged from the cold compress bag into the receiving cavity 21 through the outlet hole 44.

[0049] In some embodiments, such as Figure 3 As shown, the cold compress machine 1 also includes a filter element 60, which is installed on the main pipe 52 to filter impurities. This helps to prevent impurities from entering the inlet / outlet module 32 and the cold compress bag, thereby improving the reliability of the cold compress machine 1 and extending the service life of the components of the inlet / outlet module 32, such as the pump body and valve body.

[0050] In some embodiments, the pressurization module 33 includes an inflation / deflation assembly and a pressure sensor. The inflation / deflation assembly inflates the cold compress bag and deflates the air inside, while the pressure sensor senses the air pressure inside the cold compress bag. It should be understood that the combined action of the inflation / deflation assembly and the pressure sensor allows the cold compress bag to apply intermittent pressure to the limb, simulating vascular pressure during natural movement. For example, when the cold compress bag is strapped to the patient's calf, the intermittent pressure generated by the cold compress bag simulates vascular pressure during natural walking, which is beneficial for massaging muscles and preventing deep vein thrombosis. It is worth noting that by sensing the pressure inside the cold compress bag through the pressure sensor, and then adjusting the operation of the inflation / deflation assembly, the pressure can be controlled more precisely. This helps avoid excessive pressure leading to ischemia and hypoxia, and also helps avoid insufficient pressure that would not achieve the desired therapeutic effect.

[0051] In at least one embodiment, the pressurization module 33 can control the pressure to be between 35 mmHg and 40 mmHg.

[0052] In at least one embodiment, the inflation / deflation assembly includes an air pump and a solenoid valve. The air pump inflates the cold compress bag. The solenoid valve displaces the gas from the cold compress bag.

[0053] In some embodiments, the inlet / outlet module 32 includes a water pump and a valve body. The water pump circulates liquid between the cold compress machine 1 and the cold compress bag. The valve body blocks water from entering the cold compress bag, allowing the water pump to draw liquid from the cold compress bag, thus enabling the cold compress machine 1 to operate in drainage mode. In other words, the inlet / outlet module 32 drains the liquid from the cold compress bag by drawing it out. It should be understood that other methods can also be used to drain the liquid from the cold compress bag, and this application does not impose specific limitations on this.

[0054] In some embodiments, such as Figure 3 As shown, the enclosure 20 includes an outer shell 22 and an inner shell 23. The outer shell 22 is fitted around the outer periphery of the inner shell 23, defining a space gap 24 between the outer shell 22 and the inner shell 23. It should be understood that the spaced outer shell 22 and inner shell 23 serve as heat insulation, which helps to reduce the heat exchange between the ice-water mixture inside the enclosure 20 and the outside environment, thereby allowing the ice-water mixture inside the enclosure 20 to remain within the range of an ice-water ratio of 1:1.4 to 1:2.5 for a longer period of time.

[0055] In at least one embodiment, the space gap 24 is evacuated. In at least one other embodiment, the space gap 24 is filled with an inert gas, air, or gel, etc., and this application does not impose any specific limitations on this.

[0056] In some embodiments, such as Figure 4 and Figure 5 As shown, the outer shell 22 and inner shell 23 of the housing 20 are made of transparent material. The cooling machine 1 also includes a light 70 to illuminate the housing cavity 21 of the housing 20 so as to observe the ice-water mixture inside the housing 20 in a dark environment.

[0057] In at least one embodiment, the lighting 70 can change color according to different working modes so that the user can quickly distinguish the working mode of the cold compress machine 1.

[0058] In some embodiments, such as Figures 1-4 As shown, the cold compress machine 1 also includes a handle 10, which is rotatably connected to the housing 20 or the housing cover 30 to facilitate moving and transporting the cold compress machine 1.

[0059] The basic principles, main features, and advantages of this invention have been described above. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection claimed by this invention is defined by the appended claims and their equivalents.

Claims

1. A cold compress machine, characterized in that, include: A housing having a cavity for holding liquid; A lid, adapted to cover the top of the box body, includes a cover body, an inlet / drainage module, and a control module. The cover body has an accommodating space to accommodate the inlet / drainage module and the control module. The inlet / drainage module allows liquid to circulate between the box body and the cold compress bag, enabling the cold compress machine to operate in a cold therapy mode. The inlet / drainage module also allows liquid to drain from the cold compress bag, enabling the cold compress machine to operate in a drainage mode. The control module controls the inlet / drainage module to operate the cold compress machine in either the cold therapy mode or the drainage mode. A water-guiding structure extends from the cover to the bottom of the box, and the water-guiding structure connects the receiving cavity and the inlet and outlet drainage module.

2. The cold compress machine according to claim 1, characterized in that, The cold compress machine also includes a pressurization module, which inflates the cold compress bag with air, causing the cold compress machine to operate in pressurization mode; when the cold compress machine is operating in drainage mode, the pressurization module inflates the cold compress bag with air to compress the cold compress bag; the control module controls the inlet / outlet module and the pressurization module to make the cold compress machine operate in at least one of the pressurization mode, the cold therapy mode, and the drainage mode.

3. The cold compress machine according to claim 1, characterized in that, Along the extension direction of the water diversion structure, the water diversion structure is a cone shape that is larger at the top and smaller at the bottom.

4. The cold compress machine according to claim 3, characterized in that, The water-diverting structure includes a main body and multiple outer arc sections. The outer arc sections surround the outer periphery of the main body and protrude radially from the main body, so that the water-diverting structure is a cone shape that is larger at the top and smaller at the bottom.

5. The cold compress machine according to claim 3, characterized in that, The water intake structure has several water inlets and at least one water outlet. The water inlets are located at the end of the water intake structure and are positioned opposite to the bottom of the housing. The water inlets allow the liquid in the receiving cavity to enter the water inlet / drainage module. The water outlet is located above the water inlets and allows the liquid in the water inlet / drainage module to be discharged into the receiving cavity.

6. The cold compress machine according to claim 3, characterized in that, The distance from the end of the water intake structure to the bottom of the tank is less than 5cm.

7. The cold compress machine according to claim 3, characterized in that, The cold compress machine also includes a pipe fitting disposed within the water intake structure. The pipe fitting includes a plate, a main pipe, and a secondary pipe. The plate is sealed to the water intake structure, defining a water intake gap between the pipe fitting and the water intake structure. The main pipe extends from the plate toward the end of the water intake structure, connecting the water intake gap and the inlet / outlet module, allowing liquid to enter the inlet / outlet module. The secondary pipe is located above the main pipe, extending from the plate toward the side wall of the water intake structure, connecting the water intake gap and the inlet / outlet module, allowing liquid to be discharged into the receiving cavity.

8. The cold compress machine according to claim 7, characterized in that, The cold compress machine also includes a filter element, which is installed on the main pipe to filter impurities.

9. The cold compress machine according to claim 2, characterized in that, The pressurization module includes an inflation / deflation assembly and a pressure sensor. The inflation / deflation assembly can inflate the cold compress bag with air and expel the air from the cold compress bag. The pressure sensor can sense the air pressure inside the cold compress bag.

10. The cold compress machine according to any one of claims 1-8, characterized in that, The enclosure includes an outer shell and an inner shell, with the outer shell fitted around the outer periphery of the inner shell, defining a space between the outer shell and the inner shell.

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