Stable water supply device for hemodialysis

Abstract

The invention discloses a stable water supply device for hemodialysis, and relates to the technical field of hemodialysis. The invention provides a stable water supply device for hemodialysis, which comprises a mounting plate, one side of the mounting plate is fixedly connected with a water storage barrel, the other side of the mounting plate is fixedly connected with a water suction pump, the water suction pump is communicated with a connecting water pipe, the water storage barrel is communicated with the same connecting water pipe, and a lower frame is fixedly connected between the two connecting water pipes. The top of the lower frame is fixedly connected with an upper frame. The water suction pump operates to guide water into the water storage barrel, the water can circulate in a cavity formed by the lower frame and the upper frame, impurities in the water are filtered out through the activated carbon cotton, in the water supply process, the detector monitors the quality of water filtered by the activated carbon cotton in real time, and after the activated carbon cotton adsorbs the water to be saturated, the water is discharged. The driving motor controls the lower rotary drum to rotate to wind the used activated carbon cotton, and the upper rotary drum rotates to release new activated carbon cotton, so that the activated carbon cotton can be automatically replaced to ensure that the water quality of supplied water is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of hemodialysis, and in particular to a stable water supply device for hemodialysis. Background Art

[0002] Hemodialysis is a method of treating renal failure. The dialysis machine is used to remove waste and excess water from the blood. In the existing hemodialysis treatment field, the water supply device is one of the key equipment to ensure the safety and stability of the water quality during the dialysis process. Traditional hemodialysis water supply devices usually use a fixed activated carbon cotton filtration system to remove organic matter, residual chlorine and other impurities in the water to provide pure water that meets the dialysis requirements. However, this fixed filtration system has obvious disadvantages: first, the activated carbon cotton will gradually become saturated with the increase of usage time and lose its original adsorption capacity. If it is not replaced in time, it will cause the water quality to deteriorate and increase the risk of infection for patients; second, the manual replacement of activated carbon cotton is not only cumbersome, but also easy to affect the water supply quality and the continuity of dialysis treatment due to untimely replacement or improper operation.

[0003] In order to solve the above problems, we propose a stable water supply device for hemodialysis, which can automatically replace activated carbon cotton to ensure stable water quality. Summary of the invention

[0004] In order to overcome the disadvantage that the existing water supply device for hemodialysis usually adopts a fixed activated carbon cotton filtration system, and the activated carbon cotton will affect the water supply quality if it is not replaced in time when it is saturated with adsorption, the present invention provides a stable water supply device for hemodialysis, which can automatically replace the activated carbon cotton to ensure the stability of the water quality of the water supply.

[0005] A stable water supply device for hemodialysis comprises a mounting plate, one side of the mounting plate is fixedly connected to a water storage bucket, the other side of the mounting plate is fixedly connected to a water pump, the water pump is connected to a connecting water pipe, the water storage bucket is connected to the same connecting water pipe, a lower frame is fixedly connected between the two connecting water pipes, the top of the lower frame is fixedly connected to an upper frame, the two connecting water pipes are connected through a cavity formed by the lower frame and the upper frame, and also comprises a longitudinally symmetrical covering plate, the longitudinally symmetrical covering plate is fixedly connected to the mounting plate, the lower frame and the upper frame are both fixedly connected to longitudinally symmetrical mounting frames, the mounting frames are both rotatably connected to rotating shafts, and the longitudinally corresponding A rotating drum is clamped between the two rotating shafts, and the covering plate, the mounting plate and the lower frame cooperate to form a cavity to cover the rotating drum on the lower side. Activated carbon cotton is wound on one of the rotating drums, and the tail end of the activated carbon cotton passes through the upper frame and the lower frame and is connected to the other rotating drum. Rubber sealing blocks are fixedly connected to the lower frame and the upper frame, and the activated carbon cotton is connected to the rotating drum through the rubber sealing block. Pins are slidably connected between the two longitudinally symmetrical rotating shafts and adjacent rotating drums. The upper frame and the mounting plate are provided with sensing mechanisms for monitoring the quality of filtered water and sensing whether the adsorption of the activated carbon cotton is saturated. The upper frame is provided with an alarm mechanism for monitoring the remaining amount of activated carbon cotton.

[0006] As a further preferred embodiment of the present invention, the sensing mechanism includes a disassembly plate, which is fixedly connected to the top of the upper frame, a detector is fixedly connected to the upper frame, the detector extends into the upper frame, a drive motor is fixedly connected to the mounting plate, the drive motor is electrically connected to the detector, and the drive motor is connected to an adjacent rotating shaft.

[0007] As a further preferred embodiment of the present invention, the alarm mechanism includes a guide rail, which is fixedly connected to the top of the upper frame, a limit block is slidably connected to the guide rail, a first spring is connected between the limit block and the guide rail, a contact switch is fixedly connected to the side of the guide rail close to the activated carbon cotton, the limit block moves to contact the contact switch, an alarm is fixedly connected to the top of the upper frame, and the alarm is electrically connected to the contact switch.

[0008] As a further preferred embodiment of the present invention, the limiting block is arc-shaped and is used for bonding the rolled activated carbon cotton.

[0009] As a further preferred embodiment of the present invention, it also includes a purification mechanism for adding chemicals to purify water quality, the purification mechanism is arranged on the upper frame, the purification mechanism includes a water wheel, the water wheel is rotatably connected to the upper frame, a rotating wheel is fixedly connected to the water wheel, a placement frame is fixedly connected to the top of the upper frame, a feed port is provided at the top of the placement frame, a sliding plate is slidably connected to the placement frame, a contact rod is fixedly connected to the side of the sliding plate close to the rotating wheel, and a transversely symmetrical second spring is connected between the sliding plate and the upper frame.

[0010] As a further preferred solution of the present invention, a feed opening is provided at the bottom of the placement frame and is connected to the upper frame, and a through hole is provided on the sliding plate and is offset from the feed opening.

[0011] As a further preferred solution of the present invention, a side of the rotating wheel close to the contact rod is provided with an inclined protrusion, and the rotating wheel is pressed and matched with the contact rod through the protrusion.

[0012] As a further preferred embodiment of the present invention, it also includes a locking mechanism for locking the upper rotating shaft, the locking mechanism is arranged on the rotating shaft and the mounting frame, the locking mechanism includes a locking wheel, the locking wheel is fixedly connected to the rotating shaft close to the side of the upper frame, and a locking block is slidably connected to the mounting frame close to the side of the upper frame, and an elastic rope is connected between the locking block and the adjacent mounting frame.

[0013] As a further preferred solution of the present invention, the top of the positioning block is a transversely symmetrical inclined structure, and the positioning wheel is provided with a circle of equally spaced positioning grooves adapted to the upper end of the positioning block.

[0014] As a further preferred embodiment of the present invention, a scraping mechanism for scraping impurities from the inner wall of the connecting water pipe is also included. The scraping mechanism is arranged between the connecting water pipe and the lower frame. The scraping mechanism includes a scraping rod, which is slidably connected to the connecting water pipe near one side of the water pump, and a collecting frame is fixedly connected to the lower frame.

[0015] The beneficial effects of the present invention are as follows: 1. The water pump is operated to introduce water into the water storage barrel through the connecting water pipe. When supplying water, the water will flow in the cavity formed by the lower frame and the upper frame, and the organic matter, residual chlorine and other impurities in the water will be filtered out by the activated carbon cotton. During the water supply process, the detector monitors the water quality after the activated carbon cotton is filtered in real time. When the activated carbon cotton is saturated with adsorption, the driving motor controls the rotating drum on the lower side to rotate and reel in the used activated carbon cotton, and the rotating drum on the upper side can rotate to release new activated carbon cotton. In this way, the activated carbon cotton can be automatically replaced to ensure the stability of the water quality of the water supply.

[0016] 2. As the clean activated carbon cotton is released for use, the first spring rebounds and drives the limit block to slide gradually to the left. When the limit block slides to the left and contacts the contact switch, the alarm sounds to remind the staff to add new activated carbon cotton.

[0017] 3. The rotating wheel rotates and cooperates with the contact rod to control the placement frame to open intermittently to add the agent into the water to purify the water quality, and the rotation of the water wheel can also make the agent mix better with the water.

[0018] 4. The blocking block is inserted into the blocking wheel, thereby limiting the upper rotating shaft to prevent the faster flow rate in the lower frame and the upper frame from impacting the activated carbon cotton, causing the upper drum to easily rotate and put excess activated carbon cotton into the lower frame and the upper frame.

[0019] 5. Slide the scraper rod to the right to clean the impurities attached to the inner wall of the left water pipe. The cleaned impurities will fall into the collection frame for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the lower frame, upper frame, mounting frame and other components of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of components such as the mounting plate, water storage bucket, water pump and lower frame of the present invention.

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the cover plate, mounting frame, activated carbon cotton and other components of the present invention.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the rubber sealing block, rotating drum, rotating shaft and other components of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of components such as activated carbon cotton, a rotating drum and a rotating shaft of the present invention.

[0026] Figure 7 It is a schematic diagram of the exploded structure of the rotating drum, rotating shaft and latch of the present invention.

[0027] Figure 8 It is a three-dimensional structural schematic diagram of components such as a disassembly plate, a detector and a drive motor of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the upper frame and the detector of the present invention.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the guide rail, limit block, alarm and other components of the present invention.

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the contact rod, the second spring, the placement frame and other components of the present invention.

[0031] Fig.12 It is a schematic diagram of the three-dimensional structure of the rotating wheel and the water wheel of the present invention.

[0032] Fig.13 It is a schematic diagram of the exploded structure of the placement frame, the sliding plate and the contact rod of the present invention.

[0033] Fig.14 It is a schematic diagram of the three-dimensional structure of the components such as the locking wheel, the locking block and the elastic rope of the present invention.

[0034] Fig.15 It is a schematic diagram of the three-dimensional structure of the present invention connecting the water pipe, the lower frame, the scraper rod and the collection frame.

[0035] In the above drawings: 1: mounting plate, 2: water storage barrel, 3: water pump, 4: connecting water pipe, 5: lower frame, 51: upper frame, 61: cover plate, 62: mounting frame, 63: activated carbon cotton, 631: rubber sealing block, 64: rotating drum, 65: rotating shaft, 66: latch, 71: disassembly plate, 72: detector, 73: driving motor, 81: guide rail, 82: limit block, 83: first spring, 84: contact switch, 85: alarm, 91: rotating wheel, 911: water wheel, 92: contact rod, 93: second spring, 94: placement frame, 95: sliding plate, 101: blocking wheel, 102: blocking block, 103: elastic rope, 111: scraping rod, 112: collecting frame. DETAILED DESCRIPTION

[0036] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0037] Embodiment 1: A stable water supply device for hemodialysis, Figure 1 A is the left side, B is the front side, C is the back side, and D is the right side. Figure 1-Figure 10As shown, it includes a mounting plate 1, a water storage barrel 2, a water pump 3, a connecting water pipe 4, a lower frame 5, an upper frame 51, a cover plate 61, a mounting frame 62, activated carbon cotton 63, a rubber sealing block 631, a rotating drum 64, a rotating shaft 65, a latch 66, a sensing mechanism and an alarm mechanism. The right part of the mounting plate 1 is fixedly connected to the water storage barrel 2, the left part of the mounting plate 1 is fixedly connected to the water pump 3, the right side of the water pump 3 is connected to the connecting water pipe 4, the lower left part of the water storage barrel 2 is connected to the same connecting water pipe 4, and the left and right connecting water pipes 4 are connected. The lower frame 5 is fixedly connected, and the upper frame 51 is fixedly connected on the upper side of the lower frame 5. Two convex plates are provided on the front and rear sides of the inner left part of the lower frame 5 and the upper frame 51. The left and right connecting water pipes 4 are connected through the cavity formed by the lower frame 5 and the upper frame 51. The front and rear sides of the middle part of the mounting plate 1 are fixedly connected with a cover plate 61. The front and rear sides of the lower frame 5 and the upper frame 51 are fixedly connected with a mounting frame 62. The four mounting frames 62 are rotatably connected with a rotating shaft 65. The two corresponding rotating shafts 65 at the front and rear are clamped between each other. The cover plate 61 cooperates with the mounting plate 1 and the lower frame 5 to form a cavity to cover the lower rotating drum 64. The upper rotating drum 64 is wound with activated carbon cotton 63. The tail end of the activated carbon cotton 63 passes through the upper frame 51 and the lower frame 5 and is connected to the lower rotating drum 64. The front and rear sides of the activated carbon cotton 63 are located between the two convex plates of the lower frame 5 and the upper frame 51. The convex plates limit the front and rear sides of the activated carbon cotton 63 to prevent the front and rear sides of the activated carbon cotton 63 from being impacted by the water flow and curling. The lower side of the lower frame 5 and the upper side of the upper frame 51 Both are fixedly connected with rubber sealing blocks 631, and the activated carbon cotton 63 passes through two rubber sealing blocks 631, and is tightly attached to the connection between the activated carbon cotton 63 and the lower frame 5 or the upper frame 51 through the rubber sealing blocks 631. The two front-to-back symmetrical rotating shafts 65 and the adjacent rotating drums 64 are slidably connected with latches 66. The upper frame 51 and the mounting plate 1 are provided with sensing mechanisms for monitoring the water quality after filtration and sensing whether the adsorption of the activated carbon cotton 63 is saturated. The upper frame 51 is provided with an alarm mechanism for monitoring the remaining amount of the activated carbon cotton 63.

[0038] When the device is used, the water pump 3 operates to introduce water into the water storage barrel 2 through the connecting water pipe 4. When the water flows in the connecting water pipe 4, it will enter the cavity formed by the lower frame 5 and the upper frame 51, and then the organic matter, residual chlorine and other impurities in the water will be filtered out by the activated carbon cotton 63. During the water supply process, the sensing mechanism can monitor the quality of the purified water. If the quality of the purified water deteriorates, it means that the activated carbon cotton 63 is saturated with adsorption and needs to be replaced. At this time, the sensing mechanism drives the lower rotating shaft 65 to rotate, and the rotation of the lower rotating shaft 65 drives the lower rotating drum 64 to rotate. The lower rotating drum 64 rotates to reel in the used activated carbon cotton 63, and the upper rotating drum 64 rotates to release new activated carbon cotton 63 into the cavity formed by the lower frame 5 and the upper frame 51. When the used activated carbon cotton 63 moves downward for reeling, the rubber sealing block 631 can be close to the connection between the activated carbon cotton 63 and the lower frame 5 or the upper frame 51, thereby preventing water from leaking. During the use of the device, the alarm mechanism can monitor the remaining amount of activated carbon cotton 63 on the upper rotating drum 64. When the clean activated carbon cotton 63 is used up, the alarm mechanism can remind the staff to replenish it. When the activated carbon cotton 63 needs to be replenished, the staff will pull out the pin 66 and remove the rotating drum 64 from between the front and rear rotating shafts 65 to replenish new activated carbon cotton 63. In this way, the activated carbon cotton 63 can be automatically replaced to ensure the stability of the water quality of the water supply.

[0039] like Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, the sensing mechanism includes a disassembly plate 71, a detector 72 and a drive motor 73. A detachable disassembly plate 71 is connected to the upper side of the upper frame 51, a detector 72 is fixedly connected to the upper frame 51, and the lower end of the detector 72 extends into the upper frame 51. A drive motor 73 is fixedly connected to the middle of the mounting plate 1, the drive motor 73 is electrically connected to the detector 72, and the drive motor 73 is connected to the rotating shaft 65 at the front of the lower side.

[0040] When the device is used, the disassembly plate 71 covers the clean activated carbon cotton 63 on the upper side to prevent the clean activated carbon cotton 63 on the upper side from being contaminated, and the detector 72 can monitor the water quality after being filtered by the activated carbon cotton 63 in real time. When the water quality after being filtered by the activated carbon cotton 63 deteriorates, the detector 72 can control the output shaft of the drive motor 73 to rotate through the controller. The output shaft of the drive motor 73 rotates to drive the lower rotating drum 64 to rotate. The lower rotating drum 64 rotates to reel up the used activated carbon cotton 63, and the clean activated carbon cotton 63 can enter the cavity formed by the lower frame 5 and the upper frame 51 to purify the subsequent water supply. In this way, the quality of the filtered water can be monitored and whether the adsorption of the activated carbon cotton 63 is saturated can be sensed so that the activated carbon cotton 63 can be replaced in time.

[0041] like Figure 2 and Fig.10 As shown, the alarm mechanism includes a guide rail 81, a limit block 82, a first spring 83, a contact switch 84 and an alarm 85. The guide rail 81 is fixedly connected to the right middle part of the upper side of the upper frame 51. The limit block 82 is slidably connected to the guide rail 81. The limit block 82 is arc-shaped and is used to stick the rolled activated carbon cotton 63. The first spring 83 is connected between the limit block 82 and the guide rail 81. The contact switch 84 is fixedly connected to the left part of the guide rail 81. The limit block 82 moves to the left and contacts the contact switch 84. The alarm 85 is fixedly connected to the right part of the upper side of the upper frame 51, and the alarm 85 is electrically connected to the contact switch 84.

[0042] In the initial state, the activated carbon cotton 63 rolled up by the upper rotating drum 64 will squeeze the limit block 82 to slide to the right, and the first spring 83 will be in a deformed state. As the clean activated carbon cotton 63 is released for use, the activated carbon cotton 63 rolled up on the upper rotating drum 64 will also decrease. Under the action of the rebound of the first spring 83, the limit block 82 will also gradually slide to the left. When the limit block 82 slides to the left until it contacts the contact switch 84, the contact switch 84 can control the alarm 85 through the controller to sound an alarm, thereby prompting the staff to replenish new activated carbon cotton 63.

[0043] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 2 , Fig.11 , Fig.12 and Fig.13 As shown, it also includes a purification mechanism for adding chemicals to purify water quality, the purification mechanism includes a rotating wheel 91, a water wheel 911, a contact rod 92, a second spring 93, a placement frame 94 and a sliding plate 95, the upper left part of the upper frame 51 is rotatably connected to the water wheel 911, the front end of the water wheel 911 is fixedly connected to the rotating wheel 91, the upper left part of the upper frame 51 is fixedly connected to the placement frame 94, the upper side of the placement frame 94 is provided with a feed port, the placement frame 94 is slidably connected to the sliding plate 95, the placement frame 94 Three feeding ports are opened on the lower side and connected with the upper frame 51. Three through holes offset from the feeding ports are opened on the rear part of the sliding plate 95. A contact rod 92 is fixedly connected to the front side of the sliding plate 95. A side of the rotating wheel 91 close to the contact rod 92 is provided with an inclined protrusion. The rotating wheel 91 is squeezed and matched with the contact rod 92 through the protrusion. When the protrusion contacts the contact rod 92, the contact rod 92 will be pushed toward the placement frame 94. A left-right symmetrical second spring 93 is connected between the sliding plate 95 and the upper frame 51.

[0044] When using the device, the staff adds the water purification agent into the placement frame 94 through the feed inlet. In the initial state, the through hole on the sliding plate 95 is misaligned with the feed inlet at the bottom of the placement frame 94. When supplying water, water flows in the lower frame 5 and the upper frame 51 and drives the water wheel 911 to rotate. The rotation of the water wheel 911 drives the rotating wheel 91 to rotate. When the rotating wheel 91 rotates to contact the contact rod 92, the rotating wheel 91 continues to rotate to squeeze the contact rod 92 to move backward. The contact rod 92 moves backward and drives the sliding plate 95 to slide backward. The second spring 93 is deformed, and the sliding plate 95 is moved backward. After the plate 95 slides backward, the through hole coincides with the discharge port, and the medicine in the placement frame 94 can fall into the upper frame 51 from the discharge port, thereby purifying the water quality. Since the medicine falls downward and is located exactly at the water wheel 911, the rotation of the water wheel 911 can also make the medicine mix better with the water. When the rotating wheel 91 rotates to disengage from the contact rod 92, under the action of the second spring 93, the sliding plate 95 slides forward and resets to block the discharge port. When the rotating wheel 91 rotates again to contact the contact rod 92, repeating the above action can make the placement frame 94 intermittently open to add the medicine into the water.

[0045] like Figure 2 and Fig.14 As shown, it also includes a locking mechanism for locking the upper rotating shaft 65, and the locking mechanism includes a locking wheel 101, a locking block 102 and an elastic rope 103. The locking wheel 101 is fixedly connected to the upper rotating shaft 65, and the two upper mounting frames 62 are slidably connected to the locking blocks 102. The upper end of the locking block 102 is a left-right symmetrical inclined structure. The locking wheel 101 is provided with a circle of equidistantly distributed slots that are adapted to the upper end of the locking block 102, and an elastic rope 103 is connected between the locking block 102 and the adjacent mounting frame 62.

[0046] When using the device, the blocking block 102 is stuck in the blocking wheel 101, thereby limiting the upper rotating shaft 65, preventing the water flow in the lower frame 5 and the upper frame 51 from impacting the activated carbon cotton 63 at a fast flow rate, causing the upper rotating drum 64 to easily rotate and put the excess activated carbon cotton 63 into the lower frame 5 and the upper frame 51. When the lower rotating drum 64 rotates to rewind the activated carbon cotton 63, since the upper end of the blocking block 102 is a left-right symmetrical inclined structure, the rotating drum 64 drives the blocking wheel 101 to rotate and squeezes the blocking block 102 to slide downward, causing the elastic rope 103 to deform. When the blocking wheel 101 stops rotating, under the action of the elastic rope 103 resetting, the blocking block 102 slides upward and is stuck in the blocking wheel 101, thereby positioning the upper rotating shaft 65 to prevent the upper rotating drum 64 from rotating easily.

[0047] like Figure 2 and Fig.15As shown, it also includes a scraping mechanism for scraping impurities on the inner wall of the connecting water pipe 4, the scraping mechanism includes a scraping rod 111 and a collecting frame 112, the scraping rod 111 is slidably connected to the connecting water pipe 4 on the left, and the collecting frame 112 is fixedly connected to the left part of the lower frame 5.

[0048] When the device is used, the staff disassembles the upper frame 51 and then controls the scraper rod 111 to slide to the right. The scraper rod 111 slides to the right to clean the impurities attached to the inner wall of the left connecting water pipe 4, and the cleaned impurities fall into the collection frame 112 for collection.

[0049] It should be understood that the technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without paying creative labor, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A stable water supply device for hemodialysis, comprising a mounting plate (1), a water storage bucket (2) is fixedly connected to one side of the mounting plate (1), a water pump (3) is fixedly connected to the other side of the mounting plate (1), a connecting water pipe (4) is connected to the water pump (3), the water storage bucket (2) is connected to the same connecting water pipe (4), a lower frame (5) is fixedly connected between the two connecting water pipes (4), an upper frame (51) is fixedly connected to the top of the lower frame (5), the two connecting water pipes (4) are connected through a cavity formed by the lower frame (5) and the upper frame (51), and the characteristics are: The invention also comprises a longitudinally symmetrical covering plate (61), the longitudinally symmetrical covering plate (61) being fixedly connected to the mounting plate (1), the lower frame (5) and the upper frame (51) being fixedly connected to longitudinally symmetrical mounting frames (62), the mounting frames (62) being rotatably connected to rotating shafts (65), a rotating drum (64) being clamped between two longitudinally corresponding rotating shafts (65), the covering plate (61) cooperates with the mounting plate (1) and the lower frame (5) to form a cavity to cover the rotating drum (64) on the lower side, one of the rotating drums (64) being wound with activated carbon cotton (63), the tail end of the activated carbon cotton (63) passing through the upper frame ( 51) and the lower frame (5) are connected to another rotating drum (64), the lower frame (5) and the upper frame (51) are fixedly connected with a rubber sealing block (631), the activated carbon cotton (63) passes through the rubber sealing block (631) and is connected to the rotating drum (64), two longitudinally symmetrical rotating shafts (65) and adjacent rotating drums (64) are slidably connected with a latch (66), the upper frame (51) and the mounting plate (1) are provided with a sensing mechanism for monitoring the quality of filtered water and sensing whether the adsorption of the activated carbon cotton (63) is saturated, and the upper frame (51) is provided with an alarm mechanism for monitoring the remaining amount of the activated carbon cotton (63).

2. A stable water supply device for hemodialysis according to claim 1, characterized in that: The sensing mechanism comprises a disassembly plate (71), the disassembly plate (71) is fixedly connected to the top of the upper frame (51), a detector (72) is fixedly connected to the upper frame (51), the detector (72) extends into the upper frame (51), a drive motor (73) is fixedly connected to the mounting plate (1), the drive motor (73) is electrically connected to the detector (72), and the drive motor (73) is connected to an adjacent rotating shaft (65).

3. A stable water supply device for hemodialysis according to claim 2, characterized in that: an alarm The mechanism comprises a guide rail (81), the guide rail (81) is fixedly connected to the top of the upper frame (51), a limit block (82) is slidably connected to the guide rail (81), a first spring (83) is connected between the limit block (82) and the guide rail (81), a contact switch (84) is fixedly connected to the side of the guide rail (81) close to the activated carbon cotton (63), the limit block (82) moves to contact the contact switch (84), an alarm (85) is fixedly connected to the top of the upper frame (51), and the alarm (85) is electrically connected to the contact switch (84).

4. A stable water supply device for hemodialysis according to claim 3, characterized in that: The limiting block (82) is arc-shaped and is used for sticking the rolled activated carbon cotton (63).

5. A stable water supply device for hemodialysis according to claim 4, characterized in that: The invention also comprises a purification mechanism for adding a medicine to purify water quality. The purification mechanism is arranged on the upper frame (51). The purification mechanism comprises a water wheel (911). The water wheel (911) is rotatably connected to the upper frame (51). A rotating wheel (91) is fixedly connected to the water wheel (911). A placement frame (94) is fixedly connected to the top of the upper frame (51). A feed port is provided at the top of the placement frame (94). A sliding plate (95) is slidably connected to the placement frame (94). A contact rod (92) is fixedly connected to the side of the sliding plate (95) close to the rotating wheel (91). A transversely symmetrical second spring (93) is connected between the sliding plate (95) and the upper frame (51).

6. A stable water supply device for hemodialysis according to claim 5, characterized in that: The bottom end of the placing frame (94) is provided with a feeding opening which is communicated with the upper frame (51), and the sliding plate (95) is provided with a through hole which is misaligned with the feeding opening.

7. A stable water supply device for hemodialysis according to claim 6, characterized in that: A protrusion disposed obliquely is provided on one side of the rotating wheel (91) close to the contact rod (92), and the rotating wheel (91) is pressed and matched with the contact rod (92) through the protrusion.

8. A stable water supply device for hemodialysis according to claim 7, characterized in that: The device also includes a locking mechanism for locking the upper rotating shaft (65), the locking mechanism being arranged on the rotating shaft (65) and the mounting frame (62), the locking mechanism including a locking wheel (101), the locking wheel (101) being fixedly connected to the rotating shaft (65) on one side close to the upper frame (51), a locking block (102) being slidably connected to the mounting frame (62) on one side close to the upper frame (51), and an elastic rope (103) being connected between the locking block (102) and the adjacent mounting frame (62).

9. A stable water supply device for hemodialysis according to claim 8, characterized in that: The top of the positioning block (102) is a transversely symmetrical inclined structure, and the positioning wheel (101) is provided with a circle of equally spaced positioning grooves adapted to the upper end of the positioning block (102).

10. A stable water supply device for hemodialysis according to claim 9, characterized in that: It also includes a scraping mechanism for scraping impurities on the inner wall of the connecting water pipe (4), the scraping mechanism being arranged on the connecting water pipe (4) and the lower frame (5), the scraping mechanism including a scraping rod (111), the scraping rod (111) being slidably connected to the inside of the connecting water pipe (4) near the side of the water pump (3), and a collecting frame (112) being fixedly connected to the inside of the lower frame (5).

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