Low noise medical cold compress

Abstract

The application relates to the technical field of medical cold compressors, and discloses a low-noise medical cold compressor which comprises a barrel body, an inner container integrally formed in the barrel body, a cover body provided at the opening side of the barrel body, an inner cover arranged in the cover body, a pump body assembly, a submerged pump, an upper shell and a bottom shell, the submerged pump is fixed to the inner side of the upper shell, the bottom shell is fixedly connected with the upper shell through the submerged pump, and the two form an installation cavity; a plurality of flow holes are arranged in the bottom shell, the diameters of the flow holes gradually change from the middle part of the bottom shell to the outer periphery, the installation cavity is communicated with the inner container through the flow holes, and a damping and noise reduction structure is arranged in the pump body assembly. The multiple collaborative noise reduction design of the pump body upper damping, liquid immersion buffering, multilayer soft rubber vibration absorption and position avoidance and noise elimination effectively blocks the vibration conduction of the pump body, avoids collision, significantly reduces the operation noise of the medical cold compressor, and solves the noise interference problem.

Description

Technical Field

[0001] This invention relates to the field of medical cold compress technology, specifically a low-noise medical cold compress. Background Technology

[0002] Medical cold compresses are commonly used adjunctive therapeutic devices in the medical field, widely applied in postoperative care, wound swelling reduction, and inflammation relief. Their core function is to continuously cool the affected area using circulating cold compress solution to achieve adjunctive therapeutic effects and alleviate negative conditions such as inflammation, swelling, and pain.

[0003] Existing medical cooling devices generate significant vibration during pump operation, leading to noise. This noise is particularly jarring during normal use, especially in quiet environments, disturbing patients' rest. A common solution is to add a simple vibration-damping pad to the bottom of the pump. However, this only alleviates vibration transmission between the pump and the mounting surface; it cannot suppress noise from radial oscillation of the pump or hard impacts from clearances, nor does it utilize the immersion environment of a submersible pump for synergistic vibration reduction. The noise reduction effect of a single vibration-damping method is very limited and cannot meet the low-noise requirements of medical applications. Therefore, a low-noise medical cooling device is proposed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a low-noise medical cold compress device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-noise medical cooling device, comprising: The barrel body has an opening on one side and an integrally formed inner liner inside. A lid, wherein the lid is disposed on the opening side of the barrel body, and an inner lid is provided inside the lid; The pump body assembly, which is installed in conjunction with the inner cover, includes a submersible pump, an upper shell, and a bottom shell. The submersible pump is fixed inside the upper shell, and the bottom shell is fixedly connected to the upper shell through the submersible pump. The two together form an installation cavity. The bottom shell has multiple flow holes with the diameter of the flow holes gradually changing from the middle of the bottom shell to the outer periphery. The installation cavity is connected to the inner liner through the flow holes, so that the submersible pump is immersed in the cold compress liquid to form a liquid immersion vibration damping structure. The pump body assembly is equipped with a vibration reduction and noise reduction structure, including vibration damping pads, a first vibration damping soft rubber sleeve, a second vibration damping soft rubber sleeve, and a third vibration damping soft rubber sleeve. The three vibration damping soft rubber sleeves are spaced apart along the axial direction of the submersible pump and are fitted onto its outer surface. The end face and side face of the first vibration damping soft rubber sleeve are respectively provided with a first clearance groove and a second clearance groove to prevent hard impact. The vibration damping pads and the vibration damping soft rubber sleeves of each stage cover and pad the outside of the submersible pump to block the transmission of pump body vibration. It also includes a circulation pipeline that connects the pump body assembly to the external water bladder; The integrated design of the barrel and inner liner effectively improves overall sealing and structural strength, preventing leakage of the cold compress solution and ensuring safety. It employs a multi-layered, collaborative noise reduction design: a top-mounted pump for amplitude reduction, liquid immersion for cushioning and vibration damping, multi-layered soft rubber for vibration absorption, and anti-collision grooves for vibration damping. The top-mounted pump reduces vibration amplitude, weakening noise at its source; the liquid immersion environment utilizes the high damping properties of the liquid to buffer vibration transmission and reduce water flow impact, thus lowering hydraulic noise; multi-layered, spaced soft rubber sleeves comprehensively absorb radial and axial vibrations of the pump; and anti-collision grooves prevent hard collisions between the pump and surrounding structures during vibration, eliminating abnormal noise. These multiple structural elements work together to significantly improve noise reduction, improve the medical environment, and prevent noise interference to patients and medical staff. The combination of the circulation pipeline and the water bladder ensures stable circulation of the cold compress solution, guaranteeing a continuous and uniform cooling effect, meeting the needs of medical cold compress use, and enhancing comfort and practicality.

[0006] Preferably, the cover and the inner cover together define a receiving cavity, and the bottom of the inner cover is hollowed out. An installation position for installing the pump body assembly is provided on the end face of the hollowed-out part. The circulation pipeline is arranged in the receiving cavity, and the input end of the circulation pipeline is connected to the submersible pump in the installation cavity through the hollowed-out part. The submersible pump is detachably connected in the installation cavity.

[0007] Preferably, the first damping soft rubber sleeve and the second damping soft rubber sleeve are spaced apart, and the inner wall of the first damping soft rubber sleeve is provided with anti-slip texture; The second and third damping soft rubber sleeves are set independently and are respectively placed in the mating gaps between the upper shell and the inner cover, and between the bottom shell and the upper shell.

[0008] Preferably, the interval between the first and second damping soft rubber sleeves corresponds to the heat dissipation section of the submersible pump, thus retaining the heat dissipation channel of the pump body while reducing vibration.

[0009] Preferably, the submersible pump is provided with an inlet head and an outlet head, the vibration damping pad is provided at the end of the inlet head, the vibration damping pad is pressed and positioned by the filter nozzle and the threaded engagement of the inlet head, and the circulation pipeline includes a water supply pipe, the input end of the water supply pipe is connected to the output end of the outlet head.

[0010] Preferably, the upper end of the submersible pump is fixed to the inner top wall of the upper shell by bolts, and the bottom shell is fixedly connected to the lower end of the submersible pump by bolts, so that the submersible pump is suspended and placed on the top, reducing the amplitude of vibration and sway.

[0011] Preferably, the diameter of the flow holes gradually decreases from the middle of the bottom shell to the outer periphery, and multiple flow holes are evenly distributed along the circumference of the bottom shell, with rounded corners at the edges of the holes.

[0012] Preferably, the bottom of the first clearance groove is a soft rubber vibration damping surface, and the second clearance groove is a through clearance, which completely blocks the hard contact between the side of the submersible pump and the surrounding structure.

[0013] Preferably, the bottom of the inner cover is provided with a raised structure in four circumferential directions. The raised structure includes two fixing blocks and two limiting blocks, and the fixing blocks and limiting blocks are arranged alternately along the circumference of the inner cover. The limiting blocks prevent hard contact between the inner cover and the barrel body, blocking the vibration transmission path. The fixing blocks are a locking type fixing structure.

[0014] Preferably, a plate-shaped base is provided inside the bottom shell, and the base is clamped and fixed between the lower end of the submersible pump and the bottom wall of the bottom shell. A water temperature sensor is provided on the side of the base near the bottom shell. The water temperature sensor is set at the position of the flow hole with the largest diameter in the middle of the bottom shell, so as to improve the temperature detection accuracy by utilizing the large flow rate in the middle.

[0015] Compared with the prior art, the present invention provides a low-noise medical cooling device, which has the following beneficial effects: This invention constructs a four-fold synergistic noise reduction system: top-mounted pump body damping, liquid immersion buffering and vibration reduction, multi-layer soft rubber vibration absorption, and anti-collision vibration damping. By suspending and fixing the submersible pump on top, the vibration amplitude during pump operation is reduced, lowering the noise excitation intensity at the vibration source. The pump is immersed in cooling liquid through gradually changing flow holes in the bottom shell, utilizing the high damping characteristics of the liquid to buffer vibration transmission. Simultaneously, the gradually changing hole diameter reduces water flow impact, lowering hydraulic noise. Three layers of vibration-damping soft rubber sleeves spaced axially absorb radial and axial vibrations of the pump body from all directions, while their spacing prevents obstruction of heat dissipation. The anti-collision grooves on the soft rubber sleeves completely prevent hard collisions between the pump body and the shell during vibration, eliminating collision noise. Combined with the vibration path blocking design of the inner cover limiting block, structural transmission noise is further reduced.

[0016] Through the coordinated and synergistic effect of multiple noise reduction structures, noise suppression can be achieved throughout the entire path from the vibration source and transmission path to collision noise. It has the advantages of significant noise reduction effect, no impact on pump body heat dissipation, and stable operation. It solves the problem that existing medical cold compresses rely solely on simple vibration damping pads, which cannot fully block vibration. The noise reduction methods are singular and have limited effect, resulting in loud noise when the pump body is operating, disturbing patients' rest when used at night, and failing to meet the low-noise requirements of medical scenarios. It is suitable for medical scenarios with high requirements for quietness, such as postoperative care, ensuring patients' rest and better assisting patients' recovery. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a perspective view of the lid and barrel body of the present invention in a separated state; Figure 3This is a perspective view of the pump body assembly in its separated state according to the present invention; Figure 4 This is an exploded view of the submersible pump and soft rubber sleeve structure of the present invention; Figure 5 This is a perspective view of the cover structure of the present invention; Figure 6 For the present invention Figure 3 Enlarged view of a portion of region A in the middle.

[0018] In the diagram: 1. Tank body; 2. Lid; 3. Inner lid; 4. Water inlet pipe; 5. Pump assembly; 101. Inner liner; 501. Upper shell; 502. Bottom shell; 503. Flow hole; 504. Submersible pump; 505. Inlet head; 506. Outlet head; 507. Filter nozzle; 508. First clearance groove; 509. Second clearance groove; 510. Vibration damping pad; 511. First vibration damping soft rubber sleeve; 512. Second vibration damping soft rubber sleeve; 513. Third vibration damping soft rubber sleeve; 514. Water temperature sensor; 601. Limiting block; 602. Fixing block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: a low-noise medical cooling device. Please refer to [link / reference]. Figures 1-6 ,include: Barrel body 1, with an opening on one side, and an inner liner 101 integrally formed inside; The cover 2 is located on the opening side of the barrel 1, and the inner cover 3 is provided inside the cover 2; Pump body assembly 5 is installed in conjunction with inner cover 3. It includes submersible pump 504, upper shell 501 and bottom shell 502. Submersible pump 504 is fixed inside upper shell 501. Bottom shell 502 is fixedly connected to upper shell 501 through submersible pump 504. The two together form an installation cavity. Bottom shell 502 has multiple flow holes 503. The diameter of flow holes 503 gradually changes from the middle of bottom shell 502 to the outer periphery. The installation cavity is connected to inner liner 101 through flow holes 503, so that submersible pump 504 is immersed in cold compress liquid to form liquid immersion vibration damping structure. The pump body assembly 5 is equipped with a vibration reduction and noise reduction structure, including a vibration damping pad 510, a first vibration damping soft rubber sleeve 511, a second vibration damping soft rubber sleeve 512 and a third vibration damping soft rubber sleeve 513; the three vibration damping soft rubber sleeves are spaced apart on the outer surface of the submersible pump 504 along the axial direction; the end face and side face of the first vibration damping soft rubber sleeve 511 are respectively provided with a first clearance groove 508 and a second clearance groove 509 to prevent hard impact; the vibration damping pad 510 and the vibration damping soft rubber sleeves of each level cover and pad the outside of the submersible pump 504 to block the transmission of pump body vibration; It also includes a circulation pipeline that connects the pump body assembly 5 to the external water bladder; The vibration damping pad 510 is made of silicone, and the three vibration damping soft rubber sleeves are all medical-grade soft silicone. The circulation pipeline uses medical PVC pipe, and both ends are sealed to the water outlet of the pump body assembly 5 and the water bladder interface to ensure no leakage. The barrel 1 and the inner liner 101 are integrally molded to improve the overall sealing and structural stability and prevent liquid leakage. The cover 2 and the inner cover 3 cooperate to enhance protection.

[0021] The pump body assembly 5 includes a submersible pump 504, an upper shell 501 and a bottom shell 502. The upper shell 501 and the bottom shell 502 together form a mounting cavity for the submersible pump 504, and the submersible pump 504 is detachably connected within the mounting cavity. It should be noted that the upper shell 501 and the bottom shell 502 are indirectly connected in series and fixed through the submersible pump 504. A sealing ring is added to the mating surface. The dimensions of the pump body mounting cavity are adapted to the submersible pump 504. The upper end of the submersible pump 504 is fixed to the inner top wall of the upper shell 501 with bolts, ensuring a secure installation and facilitating disassembly and maintenance. The upper shell 501 and the bottom shell 502 together form a sealed pump body mounting cavity, providing a stable installation space for the submersible pump 504 and preventing it from shaking and increasing noise during operation. The series-fixed structure, combined with the sealing ring, facilitates disassembly and maintenance while preventing internal liquid leakage and protecting the submersible pump 504 from damage.

[0022] In addition, the suspended top-mounted design of the submersible pump 504 increases the installation height of the pump body, reduces the swaying amplitude caused by the vibration generated when the pump body is working, that is, reduces vibration displacement. Combined with the avoidance groove structure, it further reduces mutual collisions, reduces the noise generated by vibration transmission, and improves the overall structural stability of the pump body assembly 5 while reducing vibration, thus extending its service life.

[0023] Specifically, the cover 2 and the inner cover 3 together define a receiving cavity, and the bottom of the inner cover 3 is hollowed out. The end face of the hollowed-out part is provided with a mounting position for installing the pump body assembly 5. The circulation pipeline is set in the receiving cavity, and the input end of the circulation pipeline is connected to the submersible pump 504 in the mounting cavity through the hollowed-out part.

[0024] Please see Figures 1-6The first damping soft rubber sleeve 511 and the second damping soft rubber sleeve 512 are spaced apart, and the inner wall of the first damping soft rubber sleeve 511 is provided with anti-slip texture. The second damping soft rubber sleeve 512 and the third damping soft rubber sleeve 513 are set independently and are respectively padded at the mating gap between the upper shell 501 and the inner cover 3, and between the bottom shell 502 and the upper shell 501. All three vibration-damping soft rubber sleeves are annular structures, fitted onto the outer peripheral wall of the submersible pump 504. The outer rings of the second vibration-damping soft rubber sleeve 512 and the third vibration-damping soft rubber sleeve 513 are respectively padded at the mating gaps between the upper shell 501 and the inner cover 3, and between the bottom shell 502 and the upper shell 501. The water inlet pipe 4 is a rigid medical tube, with one end threaded to the pre-set interface at the bottom of the inner cover 3, and the other end sealed to the water outlet of the submersible pump 504. The first vibration-damping soft rubber sleeve 511 fits against the outer periphery of the submersible pump 504, directly absorbing the pump body's own vibration. The second vibration-damping soft rubber sleeve 512 and the third vibration-damping soft rubber sleeve 513 are respectively padded between the upper shell 501 and the inner cover 3, and between the bottom shell 502 and the upper shell 501, blocking the transmission of vibration between the structures. The triple vibration-damping structure is superimposed, significantly reducing noise. The water inlet pipe 4 connects the inner cover 3 and the pump body assembly 5, providing a stable input end for the circulation pipeline and ensuring smooth flow of the cold compress solution. The overall design further enhances the vibration reduction and noise reduction effect, improving user comfort.

[0025] The inlet head 505 has an external thread on its outer circumference, and the filter nozzle 507 has an internal thread on its inner side. The two are connected by threads. The vibration damping pad 510 is fitted onto the end of the inlet head 505 and fits snugly against the inner side of the filter nozzle 507. The input end of the water supply pipe 4 is connected to the output end of the outlet head 506 via a quick connector, which is convenient for disassembly and assembly and ensures a good seal. The inlet head 505 and the filter nozzle 507 of the submersible pump 504 are detachably connected, which is convenient for cleaning or replacing the filter nozzle 507 and avoids clogging that may affect the operation of the pump. The vibration damping pad 510 is located at the end of the inlet head 505, which not only increases liquid buffering and reduces noise generated by water flow impact, but also improves sealing performance and prevents leakage. The water supply pipe 4 is smoothly connected to the outlet head 506, ensuring efficient output of the cold compress solution. It takes into account noise reduction, sealing and practicality, and is suitable for medical scenarios.

[0026] Please see Figure 3 and Figure 4 The interval between the first damping soft rubber sleeve 511 and the second damping soft rubber sleeve 512 corresponds to the heat dissipation section of the submersible pump 504, thus retaining the heat dissipation channel of the pump body while damping vibration.

[0027] The submersible pump 504 is provided with an inlet head 505 and an outlet head 506. The vibration damping pad 510 is provided at the end of the inlet head 505. The vibration damping pad 510 is pressed and positioned by the filter nozzle 507 and the threaded engagement of the inlet head 505. The circulation pipeline includes a water supply pipe 4, and the input end of the water supply pipe 4 is connected to the output end of the outlet head 506. The first damping soft rubber sleeve 511 and the second damping soft rubber sleeve 512 are spaced apart to reduce the obstruction of the heat dissipation area of ​​the submersible pump 504. The inner wall of the first damping soft rubber sleeve 511 is provided with anti-slip texture to fit the outer periphery of the submersible pump 504. The first vibration damping soft rubber sleeve 511 has a first avoidance groove 508 and a second avoidance groove 509 on its end face and side face respectively to prevent collision. The first avoidance groove 508 and the second avoidance groove 509 are integrally formed with the first vibration damping soft rubber sleeve 511. The avoidance groove of the first vibration damping soft rubber sleeve 511 prevents the pump body from colliding with other structures when it is operating, further reducing vibration and noise. The circulation pipeline is connected to the water bag to realize the circulation of cold compress liquid and meet the needs of medical cold compress. The overall structure takes into account both practicality and low noise characteristics. The bottom of the first clearance groove 508 on the end face of the first damping soft rubber sleeve 511 is made of soft rubber, which damps vibration. The second clearance groove 509 is a clearance groove opened directly on the side of the first damping soft rubber sleeve 511, which completely avoids collision.

[0028] The upper end of the submersible pump 504 is fixed to the inner top wall of the upper shell 501 by bolts, and the bottom shell 502 is fixedly connected to the lower end of the submersible pump 504 by bolts, so that the submersible pump 504 is suspended and placed on the top, reducing the amplitude of vibration and sway.

[0029] Please see Figure 2 , Figure 3 and Figure 4 The diameter of the flow holes 503 gradually decreases from the middle of the bottom shell 502 to the outer periphery. Multiple flow holes 503 are evenly distributed around the bottom shell 502, and the edges of the holes are rounded. Specifically, in a specific embodiment of the present invention, the flow hole 503 is configured in a tapered form with the diameter gradually decreasing from the middle to the outside.

[0030] The flow passage 503 allows water to enter the pump body assembly 5 through the hole, placing the submersible pump 504 in a liquid environment and using the liquid to dampen vibration. The flow holes 503 are evenly distributed at the bottom of the bottom shell 502. The edges of the holes are rounded to avoid scratching the pipes or operators. The diameter of the flow holes 503 is gradually set from the middle of the bottom shell 502 to the outer periphery, which can slow down the flow rate of the cold compress liquid, reduce the noise generated by the water flow impact, and at the same time avoid the pipe shaking and vibration caused by excessive flow rate.

[0031] In addition, multiple 503 flow holes are evenly distributed to ensure uniform flow of the cooling solution, maintain stable water flow within the circulation pipeline, and enhance the cooling effect. The rounded corners of the holes improve safety during use, preventing damage from sharp edges. The overall design balances noise reduction, practicality, and safety.

[0032] The bottom of the first clearance groove 508 is a soft rubber vibration damping surface, and the second clearance groove 509 is a through clearance, which completely blocks the hard contact between the side of the submersible pump 504 and the surrounding structure.

[0033] Please see Figure 5 The bottom of the inner cover 3 has a raised structure in four circumferential directions. The raised structure includes two fixing blocks 602 and two limiting blocks 601. The fixing blocks 602 and the limiting blocks 601 are arranged alternately along the circumference of the inner cover 3. The limiting blocks 601 prevent the inner cover 3 from making hard contact with the barrel 1 and block the vibration transmission path. The fixing blocks 602 are locking structures. The limiting block 601 is used for structural positioning and to block the vibration contact between the inner cover 3 and the container body 1, preventing them from vibrating and colliding to achieve vibration reduction; the fixing block 602 is used to position and fix the inner cover 3 and the container body 1. The fixing block 602 adopts a locking structure and its function is to lock the cover 2 to prevent the cover 2 from falling off during equipment operation; the limiting block 601 plays a limiting role to prevent the cover 2 from loosening after it is fastened to the body 1, so that the four sides of the body 1 form a uniform supporting force on the cover 2; the alternating arrangement of the fixing block 602 and the limiting block 601 can simplify the opening and closing operation of the lid and improve the convenience of disassembly and assembly. The preferred arrangement of this product is symmetrical.

[0034] This embodiment adopts a square barrel body 1 and a square lid body 2 structure. This protruding structure is also compatible with round barrels and round lid matching schemes. If a round barrel body is selected, the shape of the four protruding structures needs to be modified to match the arc shape of the arc side wall.

[0035] The spacing arrangement in this embodiment includes two types of arrangement: one is that the same type of protrusions are arranged adjacently, and the other is that different types of protrusions are arranged alternately adjacently. In this embodiment, the spacing arrangement of the fixed block 602 and the limiting block 601 is arranged alternately adjacently.

[0036] Please see Figure 6 A plate-shaped base is provided inside the bottom shell 502. The base is clamped and fixed between the lower end of the submersible pump 504 and the inner bottom wall of the bottom shell 502. A water temperature sensor 514 is provided on the side of the base near the bottom shell 502. The water temperature sensor 514 is set at the position of the flow hole 503 with the largest diameter in the middle of the bottom shell 502, and the temperature detection accuracy is improved by utilizing the large flow in the middle. The water temperature sensor 514 monitors the temperature change inside the tank, which is related to the gradual change in the diameter of the flow hole 503 on the bottom shell 502. Since the flow hole 503 is set in a tapering form with the diameter gradually decreasing from the middle to the outside, the large diameter in the middle of the bottom shell 502 results in a large water flow, obvious water temperature change, and more accurate detection.

[0037] This solution involves injecting an appropriate amount of cold compress solution into the inner liner 101 of the tank 1, closing the cover 2, and starting the submersible pump 504 of the pump assembly 5 via the control panel on the cover 2. When the submersible pump 504 is operating, the inlet head 505 filters the cold compress solution through the filter nozzle 507, and the vibration damping pad 510 buffers the water flow and reduces noise. Additionally, the operation of the submersible pump 504 causes slight vibrations in the pump body. The top-mounted suspension structure reduces the amplitude of the vibration, the immersion environment buffers vibration transmission, and the three-layer spaced soft rubber sleeve absorbs radial and axial vibrations. The clearance grooves on the first to third vibration damping soft rubber sleeves prevent hard collisions between the pump body and the upper shell 501 and the bottom shell 502 during pump vibration. These multiple structures work together to achieve noise reduction throughout the entire process. In addition, the flow hole 503 allows the cold compress liquid in the inner tank 101 to flow into the pump body mounting cavity, so that the submersible pump 504 is always immersed in the cold compress liquid to form a liquid immersion vibration reduction environment; on the other hand, it allows the return cold compress liquid of the circulation loop to flow back to the inner tank 101, so that the pump body is in an aquatic environment and the vibration is reduced by the liquid, thereby achieving the noise reduction effect. Meanwhile, placing the pump body on the upper shell 501 can increase the height of the pump body, further reduce the amplitude of pump body vibration, and thus achieve a further noise reduction effect.

[0038] After being pressurized by the submersible pump 504, the cold compress solution enters the circulation pipeline through the outlet 506 and the water inlet pipe 4, then flows into the water bladder to provide cold compresses to the patient. It then flows back to the tank 1 through the circulation pipeline, forming a closed-loop circulation. The gradually changing flow holes 503 in the bottom shell 502 stabilize the water flow and reduce noise. The overall structure adopts multiple vibration reduction and noise reduction designs to achieve low-noise, stable, and safe medical cold compresses.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-noise medical cooling device for filling and emptying an external water bladder and continuously circulating water, characterized in that, include: The barrel (1) has an opening on one side and an inner liner (101) integrally formed inside. The cover (2) is provided on the opening side of the barrel (1), and the cover (2) is provided with an inner cover (3). The pump body assembly (5) is installed in conjunction with the inner cover (3), including a submersible pump (504), an upper shell (501) and a bottom shell (502). The submersible pump (504) is fixed inside the upper shell (501), and the bottom shell (502) is fixedly connected to the upper shell (501) through the submersible pump (504). The two together form an installation cavity. The bottom shell (502) has multiple flow holes (503). The diameter of the flow holes (503) gradually changes from the middle of the bottom shell (502) to the outer periphery. The installation cavity is connected to the inner liner (101) through the flow holes (503), so that the submersible pump (504) is immersed in the cold compress liquid to form a liquid immersion vibration damping structure. The pump body assembly (5) is provided with a vibration reduction and noise reduction structure, including a vibration damping pad (510), a first vibration damping soft rubber sleeve (511), a second vibration damping soft rubber sleeve (512) and a third vibration damping soft rubber sleeve (513); the three vibration damping soft rubber sleeves are spaced along the axial direction of the submersible pump (504) and are fitted on its outer surface. The end face and side face of the first vibration damping soft rubber sleeve (511) are respectively provided with a first clearance groove (508) and a second clearance groove (509) to prevent hard collisions; the vibration damping pad (510) and the vibration damping soft rubber sleeves of each level cover and pad the outside of the submersible pump (504) to block the transmission of pump body vibration; It also includes a circulation pipeline that connects the pump body assembly (5) to the external water bladder.

2. The low-noise medical cooling device according to claim 1, characterized in that: The cover (2) and the inner cover (3) together define a receiving cavity, and the bottom of the inner cover (3) is hollowed out. The end face of the hollowed-out part is provided with a mounting position for installing the pump body assembly (5). The circulation pipeline is set in the receiving cavity. The input end of the circulation pipeline is connected to the submersible pump (504) in the mounting cavity through the hollowed-out part. The submersible pump (504) is detachably connected in the mounting cavity.

3. The low-noise medical cooling device according to claim 2, characterized in that: The first damping soft rubber sleeve (511) and the second damping soft rubber sleeve (512) are spaced apart, and the inner wall of the first damping soft rubber sleeve (511) is provided with anti-slip texture; The second damping soft rubber sleeve (512) and the third damping soft rubber sleeve (513) are independently provided and are respectively padded at the mating gap between the upper shell (501) and the inner cover (3) and the bottom shell (502) and the upper shell (501).

4. A low-noise medical cooling device according to claim 3, characterized in that: The space between the first damping soft rubber sleeve (511) and the second damping soft rubber sleeve (512) corresponds to the heat dissipation section of the submersible pump (504), thus maintaining the heat dissipation channel of the pump body while damping vibration.

5. A low-noise medical cooling device according to claim 2, characterized in that: The submersible pump (504) is provided with an inlet head (505) and an outlet head (506). The vibration damping pad (510) is located at the end of the inlet head (505). The vibration damping pad (510) is pressed and positioned by the threaded engagement of the filter nozzle (507) with the inlet head (505). The circulation pipeline includes a water supply pipe (4). The input end of the water supply pipe (4) is connected to the output end of the outlet head (506).

6. A low-noise medical cooling device according to claim 2, characterized in that: The upper end of the submersible pump (504) is fixed to the inner top wall of the upper shell (501) by bolts, and the bottom shell (502) is fixedly connected to the lower end of the submersible pump (504) by bolts, so that the submersible pump (504) is suspended and placed on the top, reducing the amplitude of vibration and swing.

7. A low-noise medical cooling device according to claim 2, characterized in that: The diameter of the flow passage (503) gradually decreases from the middle of the bottom shell (502) to the outer periphery. Multiple flow passages (503) are evenly distributed along the circumference of the bottom shell (502), and the edges of the passages are rounded.

8. A low-noise medical cooling device according to claim 1, characterized in that: The bottom of the first clearance groove (508) is a soft rubber vibration damping surface, and the second clearance groove (509) is a through clearance, which completely blocks the hard contact between the side of the submersible pump (504) and the surrounding structure.

9. A low-noise medical cooling device according to claim 1, characterized in that: The bottom of the inner cover (3) is provided with a raised structure in four directions along the circumference. The raised structure includes two fixing blocks (602) and two limiting blocks (601). The fixing blocks (602) and the limiting blocks (601) are arranged alternately along the circumference of the inner cover (3). The limiting blocks (601) prevent the inner cover (3) from making hard contact with the barrel (1) and block the vibration transmission path. The fixing blocks (602) are locking structures that cooperate with the corresponding buckles on the inner side of the opening of the barrel (1) to lock the cover.

10. A low-noise medical cooling device according to claim 1, characterized in that: The bottom shell (502) is provided with a plate-shaped base, which is clamped and fixed between the lower end of the submersible pump (504) and the bottom wall of the bottom shell (502). A water temperature sensor (514) is provided on the side of the base near the bottom shell (502).

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