A feeding device for a centralized liquid supply equipment for hemodialysis

Abstract

The present invention discloses a feeding device for a centralized liquid supply device for hemodialysis, belonging to the technical field of automatic powder feeding. Aiming at the problem that the one-time feeding method will increase the fusion time of solid powder, resulting in an increase in the time cost of dialysate preparation, it includes a liquid supply cylinder, a feed hopper, a liquid inlet pipe and a liquid outlet pipe, and further includes an efficiency enhancement mechanism for improving the fusion rate of solid powder. The efficiency enhancement mechanism includes a stirring component, an intermittent feeding component and a crushing component. The intermittent feeding component includes a partition plate, a receiving cylinder, a receiving hopper and an alternating component. The feeding end of the receiving hopper is closely attached to the inner wall of the top of the liquid supply cylinder; through the setting of the intermittent feeding component and the intermittent feeding component, the present invention replaces the preparation method of one-time feeding and static fusion in the traditional technology, making the preparation of dialysate become feeding while stirring, fully improving the fusion rate of solid powder and shortening the preparation time of dialysate.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic powder feeding, and particularly relates to a feeding device for a centralized liquid supply device for hemodialysis. Background Art

[0002] Currently in clinical practice, dialysis fluid is used for hemodialysis, and various acute and chronic renal failure diseases are treated through hemodialysis machines. Among them, centralized liquid supply, as a new way of configuring and supplying dialysis fluid, has a large market share in China. Whether the centralized liquid supply device can quickly configure qualified dialysis fluid has a great impact on the normal operation of hemodialysis centers.

[0003] In the prior art, most of the operation methods adopt one-time feeding, that is, when configuring dialysis fluid, artificial pre-weighted solid powder is centrally fed into the liquid supply cylinder for centralized liquid supply from the feed hopper, so that the solid powder is fused with the concentrated liquid in the liquid supply cylinder. However, such a one-time feeding method will inevitably increase the fusion time of the solid powder, resulting in an increase in the time cost of configuring dialysis fluid.

[0004] Therefore, a feeding device for a centralized liquid supply device for hemodialysis is needed to solve the problem that the one-time feeding method in the prior art will increase the fusion time of the solid powder, resulting in an increase in the time cost of configuring dialysis fluid. Summary of the Invention

[0005] The purpose of the present invention is to provide a feeding device for a centralized liquid supply device for hemodialysis to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A feeding device for a centralized liquid supply device for hemodialysis, including a liquid supply cylinder, a feed hopper connected and fixed to the top of the liquid supply cylinder, a liquid inlet pipe connected and fixed to one side of the barrel body of the liquid supply cylinder, and a liquid outlet pipe connected and fixed to the other side of the barrel body of the liquid supply cylinder, and further includes an efficiency enhancement mechanism for improving the fusion rate of solid powder;

[0007] The efficiency enhancement mechanism includes a stirring component, an intermittent feeding component, and a crushing component;

[0008] The intermittent feeding component includes a partition plate fixed inside the liquid supply cylinder, two sets of receiving cylinders symmetrically arranged on the top surface of the partition plate, a receiving hopper connected and fixed to the barrel body of the receiving cylinder, and an alternating component arranged between the two receiving cylinders. The feeding end of the receiving hopper is closely attached to the inner wall of the top end of the liquid supply cylinder, and the receiving hopper on one of the receiving cylinders is correspondingly connected and communicated with the feed hopper. The partition plate is provided with a feed port, and the other receiving cylinder is correspondingly connected and communicated with the feed port.

[0009] It should be noted that in the solution, the alternating component includes an alternating rotating rod vertically and rotatably arranged in the middle of the top surface of the partition plate, and a receiving rod is fixedly connected between the alternating rotating rod and the barrel body of the material receiving cylinder.

[0010] Furthermore, it is worth noting that a feeding motor is installed on the top surface of the liquid supply cylinder through a bracket. A transmission rod fixedly connected to the end of the alternating rotating rod is rotatably penetrated through the middle of the top surface of the liquid supply cylinder. Belt pulleys are tightly sleeved on the rod body of the transmission rod and the output shaft of the feeding motor respectively, and a transmission belt is connected between the two belt pulleys for transmission.

[0011] Even further, it should be noted that the crushing component includes a crushing pressing plate slidably arranged inside the material receiving cylinder, two pressing rods symmetrically penetrated through the top surface of the material receiving cylinder, and a boosting component arranged between the two pressing rods. The pressing rods penetrate into the material receiving cylinder and are perpendicularly and fixedly connected to the crushing pressing plate.

[0012] As a preferred implementation manner, the boosting component includes an internally threaded rotating cylinder vertically and rotatably arranged in the middle of the top surface of the material receiving cylinder, an externally threaded block threadedly connected inside the internally threaded rotating cylinder, and a push rod perpendicularly fixed on the externally threaded block. The end of the push rod penetrates into the material receiving cylinder and is fixedly connected to the crushing pressing plate. A fixed internal gear disk is fixed on the inner wall of the top end of the liquid supply cylinder. The end of the internally threaded rotating cylinder penetrates into the inside of the fixed internal gear disk and is tightly sleeved with a transmission gear meshing with the internal tooth surface of the fixed internal gear disk.

[0013] As a preferred implementation manner, a fixed sleeve perpendicularly and fixedly connected to the top surface of the material receiving cylinder is sleeved on the barrel body of the internally threaded rotating cylinder. A torsion spring is also sleeved on the barrel body of the internally threaded rotating cylinder located inside the fixed sleeve. One end of the torsion spring is fixedly connected to the barrel wall of the internally threaded rotating cylinder, and the other end of the torsion spring is fixedly connected to the inner wall of the fixed sleeve.

[0014] As a preferred implementation manner, the stirring component includes a stirring motor installed at the bottom of the liquid supply cylinder. The output shaft of the stirring motor penetrates into the liquid supply cylinder and is fixed with stirring blades.

[0015] Compared with the prior art, a feeding device for a blood dialysis centralized liquid supply device provided by the present invention has at least the following beneficial effects:

[0016] (1) Through the setting of the intermittent feeding component and the intermittent feeding component, it replaces the preparation method of one-time feeding and static fusion in the traditional technology, making the preparation of dialysate become feeding and stirring at the same time, fully improving the fusion rate of solid powder and shortening the preparation time of dialysate.

[0017] (2) Through the arrangement of the crushing component, when the receiving barrel containing solid powder rotates towards the feed port side, the boosting component can push the crushing pressing plate, so that the crushing pressing plate steadily presses the solid powder inside the receiving barrel, crushing the caked parts in the solid powder, thereby reducing the existence of caked parts in the powder, relatively ensuring the granularity of the solid powder, improving the fusion effect of the powder during stirring, and further shortening the stirring time of the dialysate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0019] Figure 2 is a schematic internal structural diagram of the present invention;

[0020] Figure 3 is a schematic structural diagram of the intermittent feeding component of the present invention;

[0021] Figure 4 is a schematic structural diagram of the crushing component of the present invention;

[0022] Figure 5 is a schematic bottom structural diagram of the present invention.

[0023] In the figure: 1, liquid supply cylinder; 2, feed hopper; 3, liquid inlet pipe; 4, liquid outlet pipe; 5, partition plate; 6, feed port; 7, alternating rotating rod; 8, stirring motor; 9, receiving barrel; 10, bearing rod; 11, receiving hopper; 12, crushing pressing plate; 13, internally threaded rotating cylinder; 14, externally threaded block; 15, push-pull rod; 16, pressing rod; 17, transmission gear; 18, fixed internal gear disc; 19, fixed sleeve; 20, torsion spring; 21, transmission rod; 22, supply rotating motor; 23, transmission belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes the present invention in conjunction with embodiments.

[0025] Please refer to Figures 1-5 , the present invention provides a feeding device for a blood dialysis centralized liquid supply device, including a liquid supply cylinder 1, a feed hopper 2 fixedly connected and communicated at the top of the liquid supply cylinder 1, a liquid inlet pipe 3 fixedly connected and communicated on one side of the barrel body of the liquid supply cylinder 1, and a liquid outlet pipe 4 fixedly connected and communicated on the other side of the barrel body of the liquid supply cylinder 1. A valve (not shown in the figure) is provided on the pipe body of the liquid outlet pipe 4;

[0026] During use, first inject a certain amount of concentrated liquid required for preparation into the inside of the liquid supply cylinder 1 through the liquid inlet pipe 3, and then centrally input the pre-weighted solid powder into the liquid supply cylinder 1 through the feed hopper 2, so that the solid powder is fused with the concentrated liquid in the liquid supply cylinder 1, and then dialysate is prepared. After the preparation is completed, open the valve, so that the prepared dialysate can be discharged from the liquid supply cylinder 1 for convenient use.

[0027] However, in practice, the existing technology feeds solid powder in a one-time manner, and the solid powder and the concentrated liquid are statically fused. This not only reduces the fusion rate of the solid powder and increases the fusion time of the solid powder, but also further increases the time cost of preparing the dialysate;

[0028] In view of this, in this embodiment, as Figure 2 shown, it is worth noting that it further includes an efficiency-enhancing mechanism for improving the fusion rate of solid powder;

[0029] The efficiency-enhancing mechanism includes a stirring component and an intermittent feeding component;

[0030] The stirring component includes a stirring motor 8 installed at the bottom of the liquid supply cylinder 1. The output shaft of the stirring motor 8 penetrates into the liquid supply cylinder 1 and is fixed with a stirring blade (not shown in the figure);

[0031] The intermittent feeding component includes a partition plate 5 fixed inside the liquid supply cylinder 1, two groups of receiving cylinders 9 symmetrically arranged on the top surface of the partition plate 5, a receiving hopper 11 connected and fixed to the barrel body of the receiving cylinder 9, and an alternating component arranged between the two receiving cylinders 9. The feeding end of the receiving hopper 11 is closely attached to the inner wall of the top end of the liquid supply cylinder 1, and the receiving hopper 11 on one of the receiving cylinders 9 is correspondingly connected to the feeding hopper 2. An inlet 6 is opened on the partition plate 5, and the other receiving cylinder 9 is correspondingly connected to the inlet 6;

[0032] Through the setting of the intermittent feeding component, the two groups of receiving cylinders 9 in the intermittent feeding component can be used alternately on the upper surface of the partition plate 5 intermittently under the action of the alternating component, so that the receiving hoppers 11 on the two groups of receiving cylinders 9 can intermittently rotate to the position corresponding to the feeding hopper 2, facilitating continuous feeding by personnel. The solid powder falls into the receiving cylinder 9 through the receiving hopper 11 for storage. And during the alternation of the receiving cylinders 9, the receiving cylinders 9 can still carry the solid powder inside them and move on the surface of the partition plate 5 synchronously. Until the receiving cylinder 9 rotates to the position corresponding to the inlet 6, the solid powder can fall into the inner side of the liquid supply cylinder 1 under the action of gravity and fuse with the concentrated liquid, thereby achieving the effect of intermittent feeding of the solid powder;

[0033] And through the setting of the stirring component, during the synchronous operation of the intermittent feeding component, the stirring motor 8 in the stirring component is turned on, so that the output shaft of the stirring motor 8 drives the blade to continuously stir the concentrated liquid injected into the liquid supply cylinder 1, thus replacing the traditional preparation method of one-time feeding and then static fusion. The preparation of the dialysate becomes feeding while stirring, fully improving the fusion rate of the solid powder and shortening the preparation time of the dialysate.

[0034] Furthermore, as Figure 2 and Figure 3As shown, it is worth noting that the alternating component includes an alternating rotating rod 7 vertically and rotatably arranged in the middle of the top surface of the partition plate 5. A connecting rod 10 is fixedly connected between the alternating rotating rod 7 and the barrel body of the material receiving cylinder 9. A feeding motor 22 is installed on the top surface of the liquid supply cylinder 1 through a bracket. A transmission rod 21 fixedly connected to the end of the alternating rotating rod 7 is rotatably penetrated through the middle of the top surface of the liquid supply cylinder 1. Belt pulleys are tightly sleeved on the rod body of the transmission rod 21 and the shaft of the output shaft of the feeding motor 22, and a transmission belt 23 is connected between the two belt pulleys;

[0035] Through the settings of the feeding motor 22, the transmission belt 23, the transmission rod 21 and the alternating rotating rod 7, when in use, the feeding motor 22 is externally connected to a PLC controller in advance, and the PLC controller is used to debug the output shaft of the feeding motor 22 to perform a 180-degree intermittent rotation. Then, during the intermittent rotation of the output shaft of the feeding motor 22, the belt pulley on the output shaft of the feeding motor 22 can drive the transmission belt 23, so that the transmission rod 21 and the alternating rotating rod 7 rotate synchronously in a 180-degree intermittent manner. Subsequently, the alternating rotating rod 7 can control the two material receiving cylinders 9 to be used intermittently and alternately through the connecting rod 10.

[0036] In the above-mentioned embodiment, although the intermittent feeding component and the intermittent feeding component are provided to replace the preparation method of one-time feeding and static fusion in the traditional technology, making the preparation of the dialysate become feeding and stirring at the same time, fully improving the fusion rate of the solid powder and shortening the preparation time of the dialysate. However, in reality, during the actual production or storage process of the solid powder, it is very easy to absorb and agglomerate to form more lumps. Then, when directly feeding the powder, the lumps will also enter the liquid supply cylinder 1 along with the powder. The solid lumps need a long time to be completely fused, which will seriously increase the stirring time of the dialysate.

[0037] In addition, as Figure 2 、 Figure 3 and Figure 4 shown, it is worth noting that the efficiency enhancement mechanism further includes a crushing component;

[0038] The crushing component includes a crushing pressing plate 12 slidably arranged inside the material receiving cylinder 9, two pressing rods 16 symmetrically penetrated through the top surface of the material receiving cylinder 9, and a boosting component arranged between the two pressing rods 16. The pressing rods 16 penetrate into the material receiving cylinder 9 and are perpendicularly fixedly connected to the crushing pressing plate 12;

[0039] Through the setting of the crushing component, when the material receiving cylinder 9 rotates towards the feeding port 6 after being filled with solid powder, the boosting component can push the crushing pressing plate 12, so that the crushing pressing plate 12 smoothly presses the solid powder inside the material receiving cylinder 9, crushing the lumped part in the solid powder, thereby reducing the existence of the lumped part in the powder, and then relatively ensuring the particle size of the solid powder and improving the fusion effect of the powder during the stirring process;

[0040] And during the downward movement of the crushing pressing plate 12, the pressing rod 16 can still penetrate and contract inside the material receiving cylinder 9 synchronously, so as to guide the crushing pressing plate 12 and ensure the stability of the crushing pressing plate 12 during the movement.

[0041] Further, as Figure 2 , Figure 3 and Figure 4 shown, it is worth noting that the boosting component includes an internal thread rotating cylinder 13 vertically and rotatably arranged in the middle of the top surface of the material receiving cylinder 9, an external thread block 14 threadedly connected to the inner side of the internal thread rotating cylinder 13, and a push rod 15 vertically fixed on the external thread block 14. The end of the push rod 15 penetrates into the material receiving cylinder 9 and is fixedly connected to the crushing pressing plate 12. A fixed internal gear disc 18 is fixed on the inner wall of the top end of the liquid supply cylinder 1. The end of the internal thread rotating cylinder 13 penetrates into the inner side of the fixed internal gear disc 18 and is tightly sleeved with a transmission gear 17 meshing with the inner tooth surface of the fixed internal gear disc 18;

[0042] Through the setting of the boosting component, as shown above, during the process of the material receiving cylinder 9 containing solid powder and rotating towards the feed port 6, the transmission gear 17 can mesh with the inner tooth surface of the fixed internal gear disc 18, and then the internal thread rotating cylinder 13 can be rotated. The external thread block 14 can slide down on the inner side of the internal thread rotating cylinder 13 by the thread structure during the rotation of the internal thread rotating cylinder 13, and continuously push the push rod 15 into the inner side of the material receiving cylinder 9, thereby pushing down the crushing pressing plate 12, so that the crushing pressing plate 12 can press down the fixed powder and break the caked part in the powder.

[0043] Further, as Figure 4 shown, it is worth noting that a fixed sleeve 19 vertically and fixedly connected to the top surface of the material receiving cylinder 9 is sleeved on the barrel body of the internal thread rotating cylinder 13. A torsion spring 20 is also sleeved on the barrel body of the internal thread rotating cylinder 13 located inside the fixed sleeve 19. One end of the torsion spring 20 is fixedly connected to the barrel wall of the internal thread rotating cylinder 13, and the other end of the torsion spring 20 is fixedly connected to the inner wall of the fixed sleeve 19.

[0044] Through the setting of the torsion spring 20, during the process of the transmission gear 17 meshing with the inner tooth surface of the fixed internal gear disc 18 and controlling the self-rotation of the internal thread rotating cylinder 13, the internal thread rotating cylinder 13 can synchronously twist the torsion spring 20 inside the fixed sleeve 19, causing the torsion spring 20 to deform. Then, when the internal thread rotating cylinder 13 drives the transmission gear 17 to rotate to a position where it does not mesh with the inner tooth surface of the fixed internal gear disc 18, the internal thread rotating cylinder 13 can rotate reversely under the action of the restoring torsion force of the torsion spring 20, so that the external thread block 14 further drives the push rod 15 to rise under the action of the thread structure, and the crushing pressing plate 12 is lifted and reset for secondary use.

[0045] In summary, through the settings of the intermittent feeding component and the stirring component, among which the two receiving cylinders 9 in the intermittent feeding component can be used alternately on the upper surface of the partition plate 5 under the action of the alternating component, achieving the effect of intermittent feeding of solid powder. During the synchronous operation of the intermittent feeding component, the stirring component can still continuously stir the concentrated liquid injected into the liquid supply cylinder 1, thus replacing the preparation method of one-time feeding and static fusion in the traditional technology. The preparation of the dialysate becomes feeding and stirring simultaneously, fully improving the fusion rate of the solid powder and shortening the preparation time of the dialysate. Through the setting of the crushing component, the existence of caked parts in the powder is reduced, and then the particle size of the solid powder is relatively ensured, improving the fusion effect of the powder during the stirring process. Through the setting of the torsion spring 20, when the inner threaded cylinder 13 carries the transmission gear 17 to a position where it does not mesh with the inner tooth surface of the fixed internal gear disk 18, the inner threaded cylinder 13 can rotate reversely under the action of the reset torsion force of the torsion spring 20, so that the external threaded block 14 further carries the push rod 15 to rise under the action of the thread structure, moving the crushing pressing plate 12 upward to reset for secondary use. Through the setting of the pressing rod 16, during the downward movement of the crushing pressing plate 12, the pressing rod 16 can still synchronously penetrate and contract inside the receiving cylinder 9 to guide the crushing pressing plate 12 and ensure the stability of the crushing pressing plate 12 during the movement. Through the setting of the boosting component, during the process of the receiving cylinder 9 filled with solid powder rotating towards the feed port 6, the transmission gear 17 can mesh with the inner tooth surface of the fixed internal gear disk 18, then drive the inner threaded cylinder 13 to rotate and continuously push the push rod 15 into the inner side of the receiving cylinder 9, thereby pushing down the crushing pressing plate 12, so that the crushing pressing plate 12 can press down the fixed powder and crush the caked parts in the powder.

Claims

1. A feeding device for a centralized liquid supply equipment for hemodialysis, comprising a liquid supply cylinder (1), a feed hopper (2) connected and fixed to the top of the liquid supply cylinder (1), a liquid inlet pipe (3) connected and fixed to one side of the barrel body of the liquid supply cylinder (1), and a liquid outlet pipe (4) connected and fixed to the other side of the barrel body of the liquid supply cylinder (1), characterized in that, It also includes an efficiency enhancement mechanism for improving the fusion rate of solid powders; The efficiency enhancement mechanism includes a stirring component, an intermittent feeding component, and a crushing component; The intermittent feeding component includes a partition plate (5) fixed inside the liquid supply cylinder (1), two receiving cylinders (9) symmetrically arranged on the top surface of the partition plate (5), a receiving hopper (11) fixedly connected to the barrel wall of the receiving cylinder (9), and an alternating component arranged between the two receiving cylinders (9). The feeding end of the receiving hopper (11) is closely attached to the inner wall of the top end of the liquid supply cylinder (1), and the receiving hopper (11) on one of the receiving cylinders (9) is correspondingly connected to the feeding hopper (2). The partition plate (5) is provided with a feeding port (6), and the other receiving cylinder (9) is correspondingly connected to the feeding port (6); The crushing component includes a crushing pressing plate (12) slidably arranged inside the receiving cylinder (9), two pressing rods (16) symmetrically penetrating through the top surface of the receiving cylinder (9), and a boosting component arranged between the two pressing rods (16). The pressing rod (16) penetrates into the receiving cylinder (9) and is perpendicularly fixedly connected to the crushing pressing plate (12); The boosting component includes an internally threaded rotating cylinder (13) vertically rotatably arranged in the middle of the top surface of the receiving cylinder (9), an externally threaded block (14) threadedly connected inside the internally threaded rotating cylinder (13), and a push-pull rod (15) vertically fixed on the externally threaded block (14). The end of the push-pull rod (15) penetrates into the receiving cylinder (9) and is fixedly connected to the crushing pressing plate (12). A fixed internal gear disk (18) is fixed on the inner wall of the top end of the liquid supply cylinder (1). The end of the internally threaded rotating cylinder (13) penetrates into the inside of the fixed internal gear disk (18) and is tightly sleeved with a transmission gear (17) meshing with the internal tooth surface of the fixed internal gear disk (18); 2. The feeding device for a hemodialysis centralized liquid supply device according to claim 1, wherein: The alternating component includes an alternating rotating rod (7) vertically rotatably arranged in the middle of the top surface of the partition plate (5), and a connecting rod (10) fixedly connected between the alternating rotating rod (7) and the barrel wall of the receiving cylinder (9); 3. The feeding device for a hemodialysis centralized liquid supply device according to claim 2, characterized in that: A supply rotating motor (22) is installed on the top surface of the liquid supply cylinder (1) through a bracket. A transmission rod (21) fixedly connected to the end of the alternating rotating rod (7) is rotatably penetrated through the middle of the top surface of the liquid supply cylinder (1). Belt pulleys are tightly sleeved on the rod body of the transmission rod (21) and the output shaft of the supply rotating motor (22), and a transmission belt (23) is connected between the two belt pulleys; 4. The feeding device for a hemodialysis centralized liquid supply device according to claim 3, characterized in that: A fixed sleeve (19) perpendicularly fixedly connected to the top surface of the receiving cylinder (9) is sleeved on the barrel wall of the internally threaded rotating cylinder (13). A torsion spring (20) is also sleeved on the barrel wall of the internally threaded rotating cylinder (13) located inside the fixed sleeve (19). One end of the torsion spring (20) is fixedly connected to the barrel wall of the internally threaded rotating cylinder (13), and the other end of the torsion spring (20) is fixedly connected to the inner wall of the fixed sleeve (19); 5. The feeding device for a hemodialysis centralized liquid supply device according to claim 1, wherein: The stirring component includes a stirring motor (8) installed at the bottom of the liquid supply cylinder (1), and the output shaft of the stirring motor (8) penetrates into the liquid supply cylinder (1) and is fixed with stirring blades.

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