A cold compress device for relieving pain

Abstract

The present invention discloses a cold compress device for relieving pain, which belongs to the field of nursing equipment, and includes a base, a drive ring, an alcohol box and a cold compress belt. The base includes a box body, and the top of the box body is symmetrically provided with arc grooves. The drive rings are respectively rotatably clamped in the arc grooves. The drive rings are symmetrically arranged, the alcohol box is arranged above the arc grooves, and the cold compress belt is arranged inside the drive ring. The present invention can use evaporative heat absorption to perform cold compress, which is gentler than the traditional ice bag cold compress method, and avoids pollution, and is suitable for use during rest.

Description

Technical Field

[0001] The invention belongs to the technical field of nursing equipment, and specifically refers to a cold compress device for relieving pain. Background Art

[0002] Cold compress is a common physical therapy that reduces local temperature by applying cold substances (such as ice cubes, cold water or cold wet towels) to the surface of the body. It can help relieve symptoms such as pain, muscle inflammation and swelling caused by sprains or strains.

[0003] Most existing cold compress methods directly apply cold compresses by contacting ice bags with the skin. However, the ice in the ice bags is hard and its temperature is much lower than the human body surface temperature. It is easy to cause great discomfort to the patient when it comes into contact with the patient's body, thereby affecting the patient's rest and reducing the recovery speed. In addition, due to the low temperature of the ice bags, condensation water will be produced during the cold compress, and there will be leakage during the melting process, which is easy to cause pollution. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cold compress device for relieving pain, which can use evaporative heat absorption to perform cold compress. Compared with the traditional ice bag cold compress method, it is gentler and avoids pollution, and is suitable for use during rest.

[0005] The technical solution adopted by the present invention is as follows: A cold compress device for relieving pain provided by the present invention includes a base, a driving ring, an alcohol box and a cold compress belt, the base includes a box body, the top of the box body is symmetrically provided with arc grooves, the driving rings are rotatably clamped in the arc grooves, the driving rings are symmetrically arranged, the alcohol box is arranged on the upper wall of one side of the box body, and the cold compress belt is arranged on the inner side of the driving ring.

[0006] Furthermore, a water receiving trough is provided on the top wall of the box body, and the water receiving trough is provided between the arc grooves. A liquid sensing module is provided on the bottom wall of the water receiving trough. The liquid sensing module is a prior art and will not be described in detail here. A motor is provided on the side wall of the box body, and a connecting rod is rotatably provided inside the box body. Gears are respectively provided at both ends of the connecting rod, and the gears are respectively provided directly below the arc grooves. The output end of the motor is transmission-connected to the connecting rod.

[0007] Further, the driving ring includes a main ring, the side wall of the main ring is provided with a tooth groove, the tooth groove is fitted with the circular arc groove, the driving ring is connected with the circular arc groove by the tooth groove, the inner circumferential array of the main ring is provided with a telescopic groove, the main ring is also provided with an annular groove 1, the annular groove 1 is arranged on the side of the telescopic groove away from the other driving ring, the annular groove 1 is communicated with the telescopic groove, the side of the annular groove 1 away from the telescopic groove is provided with an adjustment port, the side of the main ring away from the other driving ring is provided with an annular groove 2, and the tooth groove is meshed with gear 1.

[0008] Furthermore, a cooling ring is rotatably provided on the side of the main ring away from the other driving ring, and the cooling ring includes an outer ring, an inner ring and fan blades. A clamping ring is fixedly provided on the circumferential outer wall of the outer ring, and the outer ring is rotatably engaged with the annular groove through the clamping ring. The fan blades are distributed and fixed on the circumferential inner wall of the outer ring in a circumferential array, and the circumferential outer wall of the inner ring is respectively fixedly connected to one end of the fan blade away from the outer ring. The side wall of the outer ring is also provided with passive teeth, and the passive teeth are arranged on the side of the clamping ring away from the driving ring.

[0009] Furthermore, an adjustment ring is rotatably provided in the annular groove, and the adjustment ring includes a ring body, and the ring body is fitted with the annular groove. A handle is provided on the side of the ring body away from the telescopic groove, and the handle passes through the adjustment port and is arranged on the outside of the main ring. Adjustment grooves are provided in a circular array on the side of the ring body close to the telescopic groove, and the number of the adjustment grooves is the same as the number of the telescopic grooves. The adjustment grooves are arranged on the side of the telescopic groove, and the adjustment grooves are arranged at an angle.

[0010] Furthermore, an elastic telescopic rod is slidably provided in the telescopic groove, and a buckle is provided on the side of the elastic telescopic rod close to the annular groove. The buckle is slidably clamped in the adjustment groove. When the adjustment ring is rotated by the handle, the adjustment groove can synchronously adjust the position of the elastic telescopic rod in the telescopic groove through the buckle.

[0011] Furthermore, a second motor is symmetrically provided on the side wall of the box body, and a second gear is provided at the output end of the second motor, and the second gear is meshed with the passive gear.

[0012] Furthermore, the alcohol box includes a storage box, a liquid filling port, a sealing plug and a liquid replenishing tube. The storage box is arranged above the arc groove, the liquid filling port is opened on the top wall of the storage box, the sealing plug is arranged in the liquid filling port, and the liquid replenishing tube is arranged on the side wall of the storage box close to the cold compress belt. The liquid replenishing tube includes tube one, tube two, a spring, an electric control valve, a valve plate and a ball valve. Tube one and tube two are flat tubes. Tube one is connected with the storage box. Tube one is open on one side away from the storage box. Tube two is slidably arranged on the inner side of tube one. The outer wall of tube two is in contact with the inner wall of tube one. Tube one is connected with tube two, and the spring is arranged between tube two and the side wall of the storage box. The electric control valve is arranged in one end of the tube two away from the tube one, the valve plate linear array is arranged on the side of the electric control valve away from the tube one, the valve plate is provided with an opening, the ball valve is arranged on the side of the valve plate close to the tube one, the diameter of the ball valve is larger than the diameter of the valve plate opening, a trigger rod is arranged on the side of the ball valve, the trigger rod passes through the valve plate and is arranged on the outside of the tube two, when the storage box is filled with alcohol, the ball valve blocks the valve plate under the action of liquid pressure, when external force squeezes the trigger rod box tube two, the ball valve leaves the valve plate opening, and alcohol can flow out of the tube two, and the electric control valve is connected to the liquid sensing module signal.

[0013] Furthermore, the cold compress belt includes an elastic band and a slider, the elastic band is arranged between the elastic telescopic rods, the elastic telescopic rods are connected to the outer wall of the elastic band, and the slider array is arranged on the inner wall of the elastic band.

[0014] The beneficial effects achieved by the present invention using the above structure are as follows: the present scheme provides a cold compress device for relieving pain. When a patient's limbs need a cold compress, the elastic telescopic rods can be controlled to move closer or farther away from each other by rotating the adjustment ring with a handle, thereby expanding or resetting the cold compress belt outward, making it easier to place the affected part into the cold compress belt. At the same time, the squeezing force of the elastic telescopic rod on the affected part can be adjusted after wearing, and a massage effect can be produced on the affected part when the drive ring is driven by gear one to rotate. During the cold compress, the drive ring is driven by gear one to rotate in a circular manner, so that the elastic band is evenly dipped in the alcohol flowing out of tube two. At the same time, motor two controls gear two to drive the cooling ring to rotate, so that the fan blades blow air toward the elastic band. The volatility of alcohol enables it to quickly absorb heat when blown by the wind, thereby achieving the effect of cooling. Compared with ice pack cold compress, the effect of the cold compress is gentler in terms of temperature difference and contact, which reduces the patient's discomfort. At the same time, due to the characteristic that the higher the alcohol concentration, the faster it evaporates, the cold compress efficiency can also be adjusted by adjusting the alcohol concentration in the alcohol tank. In addition, the liquid sensing module can detect dripping alcohol. When alcohol drips, it means that the elastic strap is full of alcohol. The solenoid valve is controlled to close and reopen after a period of time to prevent alcohol waste. This method will not produce condensed water, nor will there be problems with ice pack melting and leakage. The cold compress efficiency is more constant than ice cubes, and will not fail due to melting due to temperature rise. At the same time, alcohol applied to the surface of the affected area can promote blood circulation and speed up blood circulation, which is beneficial to the rapid absorption of local traumatic inflammation and promotes injury repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a cold compress device for relieving pain provided by the present invention;

[0016] Figure 2 A schematic diagram of the structure of the base provided by the present invention;

[0017] Figure 3 A three-dimensional cross-sectional view of the base provided by the present invention from another perspective;

[0018] Figure 4 A schematic diagram of the structure of the drive ring provided by the present invention;

[0019] Figure 5 A schematic diagram of the structure of the temperature reduction ring provided by the present invention;

[0020] Figure 6 A schematic diagram of the structure of the drive ring provided by the present invention without the cooling ring;

[0021] Figure 7 A three-dimensional cross-sectional view of a drive ring provided by the present invention;

[0022] Figure 8 A schematic diagram of the structure of the adjustment ring provided by the present invention;

[0023] Fig. 9 A cross-sectional view of a drive ring provided by the present invention;

[0024] Fig.10 for Fig. 9 Schematic diagram of the structure of part A;

[0025] Fig.11 A cross-sectional view of a base provided by the present invention;

[0026] Fig.12 for Fig.11 Schematic diagram of the structure of part B.

[0027] Among them, 1. base, 2. drive ring, 3. alcohol tank, 4. cold compress belt, 5. adjustment ring, 6. cooling ring, 7. elastic telescopic rod, 8. motor 2, 101. box body, 102. arc groove, 103. water tank, 104. liquid sensing module, 105. motor 1, 106. gear 1, 107. connecting rod, 201. main ring, 202. tooth groove, 203. annular groove 1, 204. adjustment port, 205. annular groove 2, 206. telescopic groove, 301. storage box , 302, liquid filling port, 303, sealing plug, 304, liquid filling tube, 305, tube one, 306, tube two, 307, spring, 308, electric control valve, 309, valve plate, 310, ball valve, 311, trigger rod, 401, elastic band, 402, slider, 501, ring body, 502, handle, 503, adjusting groove, 601, outer ring, 602, inner ring, 603, fan blade, 604, retaining ring, 605, passive tooth, 701, buckle, 801, gear two.

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] like Figure 1-Figure 12 As shown, a cold compress device for relieving pain provided by the present invention includes a base 1, a driving ring 2, an alcohol tank 3 and a cold compress belt 4, the base 1 includes a box body 101, and arc grooves 102 are symmetrically opened on the top of the box body 101. The driving rings 2 are rotatably clamped in the arc grooves 102, the driving rings 2 are symmetrically arranged, the alcohol tank 3 is arranged on the upper wall of one side of the box body 101, and the cold compress belt 4 is arranged on the inner side of the driving ring 2.

[0032] A water receiving trough 103 is provided on the top wall of the box body 101, and the water receiving trough 103 is provided between the arc grooves 102. A liquid sensing module 104 is provided on the bottom wall of the water receiving trough 103. The liquid sensing module 104 can sense the liquid dripping on its surface. It is a prior art and will not be described in detail here. A motor 105 is provided on the side wall of the box body 101. A connecting rod 107 is rotatably provided inside the box body 101. Gears 106 are respectively provided at both ends of the connecting rod 107. The gears 106 are respectively provided directly below the arc grooves 102. The output end of the motor 105 is transmission-connected to the connecting rod 107.

[0033] The driving ring 2 includes a main ring 201, and a tooth groove 202 is provided on the side wall of the main ring 201. The tooth groove 202 is fitted with the arc groove 102, and the driving ring 2 is connected to the arc groove 102 by the tooth groove 202. A telescopic groove 206 is provided in a circumferential array inside the main ring 201. An annular groove 1 203 is also provided in the main ring 201. The annular groove 1 203 is arranged on the side of the telescopic groove 206 away from the other driving ring 2. The annular groove 1 203 is communicated with the telescopic groove 206. An adjusting port 204 is provided on the side of the annular groove 1 203 away from the telescopic groove 206. An annular groove 2 205 is provided on the side of the main ring 201 away from the other driving ring 2, and the tooth groove 202 is meshed with the gear 1 106.

[0034] A cooling ring 6 is rotatably provided on one side of the main ring 201 away from the other driving ring 2, and the cooling ring 6 includes an outer ring 601, an inner ring 602 and fan blades 603. A retaining ring 604 is fixedly provided on the circumferential outer wall of the outer ring 601. The outer ring 601 is rotatably engaged with the annular groove 205 through the retaining ring 604. The fan blades 603 are distributed in a circumferential array and fixedly provided on the circumferential inner wall of the outer ring 601. The circumferential outer walls of the inner ring 602 are respectively fixedly connected to one end of the fan blades 603 away from the outer ring 601. The side wall of the outer ring 601 is also provided with passive teeth 605, and the passive teeth 605 are arranged on the side of the retaining ring 604 away from the driving ring 2.

[0035] An adjusting ring 5 is rotatably provided in the annular groove 203, and the adjusting ring 5 includes a ring body 501, which is fitted with the annular groove 203, and a handle 502 is provided on the side of the ring body 501 away from the telescopic groove 206, and the handle 502 passes through the adjusting port 204 and is arranged on the outside of the main ring 201, and a circular array of adjusting grooves 503 is provided on the side of the ring body 501 close to the telescopic groove 206, and the number of the adjusting grooves 503 is the same as the number of the telescopic grooves 206, and the adjusting grooves 503 are arranged on the side of the telescopic groove 206, and the adjusting grooves 503 are arranged obliquely.

[0036] An elastic telescopic rod 7 is slidably provided in the telescopic groove 206, and a buckle 701 is provided on the side of the elastic telescopic rod 7 close to the annular groove 203. The buckle 701 is slidably clamped in the adjustment groove 503. When the adjustment ring 5 is rotated by the handle 502, the adjustment groove 503 can synchronously adjust the position of the elastic telescopic rod 7 in the telescopic groove 206 through the buckle 701.

[0037] A second motor 8 is symmetrically arranged on the side wall of the box body 101 . A second gear 801 is arranged at the output end of the second motor 8 . The second gear 801 meshes with the passive gear 605 .

[0038] The alcohol tank 3 includes a storage box 301, a liquid injection port 302, a sealing plug 303 and a liquid replenishment tube 304. The storage box 301 is arranged on the top wall of the box body 101, the liquid injection port 302 is opened on the top wall of the storage box 301, the sealing plug 303 is arranged in the liquid injection port 302, and the liquid replenishment tube 304 is arranged on the side wall of the storage box 301 close to the cold compress belt 4. The liquid replenishment tube 304 includes a tube 1 305, a tube 2 306, a spring 307, and a spring 308. 7. Electric control valve 308, valve plate 309 and ball valve 310. Pipe 1 305 and pipe 2 306 are flat pipes. Pipe 1 305 is connected to storage box 301. One side of pipe 1 305 away from storage box 301 is open. Pipe 2 306 is slidably arranged inside pipe 1 305. The outer wall of pipe 2 306 is in contact with the inner wall of pipe 1 305. Pipe 1 305 is connected to pipe 2 306. Spring 307 is arranged between pipe 2 306 and storage box 301. Between the side walls of the storage box 301, the electric control valve 308 is arranged in one end of the second tube 306 away from the first tube 305, the valve plate 309 is linearly arranged in a side of the electric control valve 308 away from the first tube 305, the valve plate 309 is provided with an opening, and the ball valve 310 is arranged on the side of the valve plate 309 close to the first tube 305. The diameter of the ball valve 310 is larger than the diameter of the opening of the valve plate 309. A trigger rod 311 is provided on the side of the ball valve 310, and the trigger rod 311 passes through the valve plate 309 and is arranged on the outside of the second tube 306. When alcohol is filled in the storage box 301, the ball valve 310 blocks the valve plate 309 under the action of liquid pressure. When the external force squeezes the trigger rod 311 into the box tube 306, the ball valve 310 leaves the opening of the valve plate 309, and alcohol can flow out from the second tube 306. The electric control valve 308 is connected to the liquid sensing module 104 by signal.

[0039] The cold compress belt 4 includes an elastic band 401 and a slider 402 . The elastic band 401 is arranged between the elastic telescopic rods 7 . The elastic telescopic rods 7 are connected to the outer wall of the elastic band 401 . The slider 402 is arranged in an array on the inner wall of the elastic band 401 .

[0040] When in use, first open the sealing plug 303, and introduce the prepared alcohol into the storage box 301 from the injection port 302, then cover the sealing plug 303 to seal it, and control the rotation of the adjusting ring 5 through the handle 502, and the adjusting groove 503 drives the buckle 701 to control the elastic telescopic rods 7 to move away from each other, and stretch the elastic band 401 outward, so that the patient can put the affected part into the cold compress belt 4, and then rotate the adjusting ring 5 in the opposite direction to make the elastic telescopic rods 7 move closer to each other, so that the elastic band 401 is reset, and the position of the elastic telescopic rod 7 in the telescopic groove 206 can be flexibly adjusted according to the thickness of the limbs and the desired massage intensity, and then start the motor 105 and the motor 2 8, and the motor 105 drives the connecting rod 107 to rotate, thereby driving the gear 106 to drive the driving ring 2 to rotate through the tooth groove 202, and the driving ring 2 drives the cold compress belt 4 to rotate. Because the friction of the cloth material will increase after being soaked, the surface of the slider 402 is smooth, which can reduce the friction between the cold compress belt 4 and the skin. The second tube 306 is squeezed toward the cold compress belt 4, and the cold compress belt 4 squeezes the trigger rod 311 into the second tube 306, and the alcohol flows out. The cold compress belt 4 is evenly dipped in alcohol when rotating. At the same time, the motor 2 8 controls the passive gear 605 through the gear 2 801, thereby driving the cooling ring 6 to rotate. The fan blade 603 of the cooling ring 6 blows air toward the elastic band 401 to promote the volatilization of alcohol and quickly take away the heat, thereby achieving the effect of cold compress. When the cold compress belt 4 is full of alcohol, some of the alcohol will drip, and the dripping alcohol will flow along the sink. 103 falls onto the surface of the liquid sensing module 104, and the liquid sensing module 104 transmits an electrical signal to the electric control valve 308 to control the electric control valve 308 to close for a period of time, and the alcohol temporarily stops flowing out of the tube 2 306 to prevent alcohol waste. After the alcohol on the liquid sensing module 104 evaporates, the electric control valve 308 reopens to deliver alcohol. When the patient is allergic to alcohol, a plastic film can be wrapped around the affected area to isolate the alcohol from the patient's skin, and the winding direction of the plastic film should be the same as the rotation direction of the drive ring 2.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A cold compress device for relieving pain, characterized in that: The invention comprises a base (1), a drive ring (2), an alcohol tank (3) and a cold compress belt (4), wherein the base (1) comprises a box body (101), the top of the box body (101) is symmetrically provided with arc grooves (102), the drive rings (2) are rotatably clamped in the arc grooves (102), the drive rings (2) are symmetrically arranged, the alcohol tank (3) is arranged on an upper wall of one side of the box body (101), the cold compress belt (4) is arranged on the inner side of the drive ring (2), the top wall of the box body (101) is provided with a water receiving groove (103), and the The water receiving trough (103) is arranged between the circular arc grooves (102), the bottom wall of the water receiving trough (103) is provided with a liquid sensing module (104), the side wall of the box body (101) is provided with a motor 1 (105), a connecting rod (107) is rotatably arranged in the box body (101), and gears 1 (106) are respectively arranged at both ends of the connecting rod (107), and the gears 1 (106) are respectively arranged directly below the circular arc grooves (102), and the output end of the motor 1 (105) is drivingly connected to the connecting rod (107); The drive ring (2) comprises a main ring (201), a tooth groove (202) is provided on a side wall of the main ring (201), the tooth groove (202) is fitted with the arc groove (102), a telescopic groove (206) is provided in an array on the inner circumference of the main ring (201), an annular groove 1 (203) is further provided in the main ring (201), the annular groove 1 (203) is provided on a side of the telescopic groove (206) away from the other drive ring (2), the annular groove 1 (203) is communicated with the telescopic groove (206), an adjustment port (204) is provided on a side of the annular groove 1 (203) away from the telescopic groove (206), an annular groove 2 (205) is provided on a side of the main ring (201) away from the other drive ring (2), and the tooth groove (202 is meshed with gear 1 (106); A cooling ring (6) is rotatably provided on a side of the main ring (201) away from the other driving ring (2), the cooling ring (6) comprising an outer ring (601), an inner ring (602) and blades (603), a retaining ring (604) is fixedly provided on the circumferential outer wall of the outer ring (601), the outer ring (601) is rotatably engaged with the second annular groove (205) via the retaining ring (604), the blades (603) are distributed in a circumferential array and fixedly provided on the circumferential inner wall of the outer ring (601), the circumferential outer wall of the inner ring (602) is respectively fixedly connected to one end of the blades (603) away from the outer ring (601), the side wall of the outer ring (601) is further provided with passive teeth (605), the passive teeth (605) are provided on the side of the retaining ring (604) away from the driving ring (2); The side wall of the box body (101) is symmetrically provided with a second motor (8), and the output end of the second motor (8) is provided with a second gear (801), and the second gear (801) is meshed with the passive gear (605).

2. A cold compress device for relieving pain according to claim 1, characterized in that: An adjustment ring (5) is rotatably arranged in the annular groove (203), the adjustment ring (5) comprising a ring body (501), the ring body (501) being fitted with the annular groove (203), a handle (502) being arranged on a side of the ring body (501) away from the telescopic groove (206), the handle (502) passing through the adjustment opening (204) being arranged on the outside of the main ring (201), and adjustment grooves (503) being arranged in a circumferential array on a side of the ring body (501) close to the telescopic groove (206), the adjustment grooves (503) being arranged on the side of the telescopic groove (206), and the adjustment grooves (503) being arranged obliquely.

3. A cold compress device for relieving pain according to claim 2, characterized in that: The alcohol box (3) comprises a storage box (301), a liquid injection port (302), a sealing plug (303) and a liquid replenishing tube (304); the storage box (301) is arranged on the top wall of the box body (101); the liquid injection port (302) is opened on the top wall of the storage box (301); the sealing plug (303) is arranged in the liquid injection port (302); the liquid replenishing tube (304) is arranged on the side wall of the storage box (301) close to the cold compress belt (4); the liquid replenishing tube (304) comprises a tube 1 (305), a tube 2 (306), a spring (307), an electric control valve (308), a valve plate (309) and a ball valve (310); the tube 1 (305) is connected to the storage box (301); the tube 1 (305) is opened on a side away from the storage box (301); the tube 2 (306) is slidably arranged in the tube 1 (305) The outer wall of the second tube (306) is in contact with the inner wall of the first tube (305), the first tube (305) and the second tube (306) are connected, the spring (307) is arranged between the second tube (306) and the side wall of the storage box (301), the electric control valve (308) is arranged in one end of the second tube (306) away from the first tube (305), the valve plate (309) is arranged in a linear array on the side of the electric control valve (308) away from the first tube (305), the valve plate (309) is provided with an opening, the ball valve (310) is arranged on the side of the valve plate (309) close to the first tube (305), the diameter of the ball valve (310) is larger than the diameter of the opening of the valve plate (309), and a trigger rod (311) is arranged on the side of the ball valve (310), and the trigger rod (311) passes through the valve plate (309) and is arranged on the outside of the second tube (306).

4. A cold compress device for relieving pain according to claim 3, characterized in that: The electric control valve (308) is signal-connected to the liquid sensing module (104).

5. A cold compress device for relieving pain according to claim 4, characterized in that: An elastic telescopic rod (7) is slidably disposed in the telescopic groove (206); a buckle (701) is disposed on a side of the elastic telescopic rod (7) close to the annular groove (203); the buckle (701) is slidably disposed in the adjustment groove (503); when the adjustment ring (5) is rotated by the handle (502), the adjustment groove (503) can synchronously adjust the position of the elastic telescopic rod (7) in the telescopic groove (206) through the buckle (701).

6. A cold compress device for relieving pain according to claim 5, characterized in that: The cold compress belt (4) comprises an elastic band (401) and a slider (402), wherein the elastic band (401) is arranged between elastic telescopic rods (7), the elastic telescopic rods (7) are connected to the outer wall of the elastic band (401), and the slider (402) is arranged in an array on the inner wall of the elastic band (401).

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