A hemodialysis concentrate filling apparatus

CN224883688UActive Publication Date: 2026-10-23JILIN FUSHENG MEDICAL DEVICES CO LTD
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Patent Information

Application Number
CN202522541641.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-30
Publication Date
2026-10-23
Estimated Expiration
2035-11-30

AI Technical Summary

Technical Problem

[0003]现有的透析液通过注液管直接灌装进入储液桶内,为直通式灌装,即使注液管伸入储液桶内,透析液仍然会冲击桶底产生飞溅,导致注液管外侧沾染透析液,此外,在透析液注液后,注液管的管口在注液之后会残留一定的液体,液体容易积累形成液珠往下滴落造成污染,这就很容易使这部分透析液受空气中微生物的影响,既造成这部分透析液的浪费,也容易在这部分受影响的透析液流入后续的储液桶内,影响到透析液的质量

Benefits of technology

通过注液件的设置,透析液首先进入连接腔,然后流入分散腔,再被多个导流槽进行分割并引导,以多个倾斜的、相对平缓的液流形式流出,而非一股集中的液柱,减少了液体对储液桶底的冲击力,避免了液体飞溅造成注液管被沾染透析液。

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Abstract

The application discloses a hemodialysis concentrate filling equipment and relates to the technical field of dialysis concentrate filling. The hemodialysis concentrate filling equipment comprises a filling equipment main body arranged on one side of a conveying belt. The filling equipment main body comprises a frame body, a pushing assembly is arranged on the frame body, a liquid injection assembly is arranged at the moving end of the pushing assembly, the liquid injection assembly comprises a liquid injection pipe extending into a liquid storage barrel and a liquid injection piece detachably arranged at the end of the liquid injection pipe, the liquid injection piece is internally provided with a connecting cavity and a dispersion cavity, a plurality of inwardly recessed flow guide grooves are arranged at the inner wall of the bottom of the dispersion cavity, and a through hole in communication with the flow guide grooves is arranged at the outer wall of the liquid injection piece. Through the arrangement of the liquid injection piece, the dialysis liquid first enters the connecting cavity, then flows into the dispersion cavity, and is then divided and guided by the plurality of flow guide grooves to flow out in the form of a plurality of inclined and relatively gentle liquid streams instead of a concentrated liquid column, so that the impact force of the liquid on the bottom of the liquid storage barrel is reduced, and the liquid injection pipe is prevented from being contaminated by the dialysis liquid caused by splashing of the liquid.
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Description

Technical Field

[0001] This invention relates to the field of dialysis concentrate filling technology, and more specifically, to a hemodialysis concentrate filling device. Background Technology

[0002] Hemodialysis fluid is the liquid that exchanges solutes with blood across the dialysis membrane during hemodialysis, and it has many applications in the medical field. During production, hemodialysis fluid is usually a concentrated solution, which is then bottled and sold and transported. It is prepared and used by medical personnel.

[0003] The existing dialysis fluid is directly filled into the storage tank through the injection tube, which is a straight-through filling method. Even when the injection tube is inserted into the storage tank, the dialysis fluid still splashes against the bottom of the tank, causing the outside of the injection tube to become contaminated with dialysis fluid. In addition, after the dialysis fluid is injected, some liquid remains at the end of the injection tube. This liquid can easily accumulate and form droplets that drip down, causing contamination. This makes it easy for this part of the dialysis fluid to be affected by microorganisms in the air, resulting in waste of this part of the dialysis fluid and the possibility that this affected dialysis fluid may flow into the subsequent storage tank, affecting the quality of the dialysis fluid. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a hemodialysis concentrate filling device.

[0005] The technical solution is as follows: A hemodialysis concentrate filling device includes a filling device body located on one side of a conveyor belt. The filling device body includes a frame, a pushing component is installed on the frame, and an injection component is installed at the moving end of the pushing component. The injection component includes an injection pipe extending into a storage tank and an injection element detachably installed at the end of the injection pipe. The injection element has a connecting cavity and a dispersion cavity inside. The inner wall of the bottom of the dispersion cavity has multiple inwardly recessed guide grooves, and the outer wall of the injection element has a through hole communicating with the guide grooves. A groove is provided on the bottom wall of the injection unit. A recovery tube is slidably installed in the dispersion chamber and the center of the groove. The top of the recovery tube has a piston that cooperates with the connecting chamber. A collection cap for wrapping the through hole is installed at the bottom of the recovery tube. A fixing plate is connected to the outer wall of the recovery tube in the groove. A spring is fixedly installed between the top wall of the fixing plate and the top wall of the groove. The spring is used to provide elastic force to keep the collection cap pressed upward.

[0006] Furthermore, the recovery tube has a cavity inside, and the outer wall of the recovery tube has multiple recovery holes that connect the cavity and the collection cap. An adsorption assembly is installed in the cavity. The adsorption assembly includes a recovery box located on the frame and a connecting pipe threaded on the inner wall of the injection tube. An adsorption device is installed inside the recovery box. A second flexible tube is installed at the input end of the adsorption device. One end of the connecting pipe is slidably inserted into the recovery tube, and the other end of the connecting pipe is connected to the second flexible tube.

[0007] Furthermore, the inside of the recovery tube is connected to an air pipe that is coaxially arranged with the recovery tube, the inside of the collection cap has an air chamber, the inside of the air pipe has an air passage that communicates with the air chamber, and multiple one-way valves are installed on the inner wall of the collection cap, with the output end of the one-way valves being inclined downwards.

[0008] Furthermore, a purging assembly is installed at the airway. The purging assembly includes a blower located at the frame and a second air pipe threaded onto the inner wall of the connecting pipe. A first flexible hose is installed at the output end of the blower. One end of the second air pipe is slidably inserted into the inside of the spring, and the other end of the second air pipe is connected to the first flexible hose.

[0009] Furthermore, a through groove is provided in the frame, and sliding grooves are provided on both sides of the inner wall of the through groove. The pushing component includes a sliding seat that is slidably disposed in the sliding groove. The side wall of the sliding seat has a horizontally disposed mounting part. The liquid injection component is installed at the mounting part. A pushing device is installed between the frame and the sliding seat.

[0010] Furthermore, a lifting assembly is installed at the bottom of the frame. The lifting assembly includes a base plate located at the top of one side of the conveyor belt, a lifting device is installed on the base plate, and the frame is installed at the lifting end of the lifting device.

[0011] Furthermore, a circular hole is provided in the frame, and a guide rod that mates with the circular hole is installed at the top of the base plate. A limit block is installed at the top of the guide rod where it passes through the circular hole.

[0012] Based on the above, the beneficial effects of the hemodialysis concentrate filling equipment of the present invention are as follows: By designing the injection unit, the dialysate first enters the connecting chamber, then flows into the dispersion chamber, and is then divided and guided by multiple guide channels, flowing out in multiple inclined and relatively gentle liquid streams, rather than a concentrated liquid column. This reduces the impact force of the liquid on the bottom of the storage tank and avoids liquid splashing that could contaminate the injection tube with dialysate.

[0013] The collection cap design allows excess dialysate to be collected from the through-hole after injection, preventing it from dripping and causing contamination or waste, or flowing into the subsequent storage tank and affecting the quality of the dialysate. The entire anti-drip process is automatically completed by the mechanical structure without manual intervention, improving the automation level and operational reliability of the equipment.

[0014] By setting up the adsorption component, it is ensured that the gas can accurately purge the inner wall of the collection cap, the bottom outer wall of the injection part, and the outlet of the guide channel, which are the key areas most prone to residual dialysate. It can also work with the adsorption component to draw the gas into the recovery pipe and connecting pipe to purge their inner walls, preventing dialysate from remaining in the recovery pipe, connecting pipe, collection cap, and through holes, causing deterioration and affecting the filling quality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall components of the present invention; Figure 2 This is a rear-view perspective view of the overall components of the present invention; Figure 3 This is a three-dimensional side view cross-sectional diagram of the component of the present invention; Figure 4 This is a schematic diagram of the liquid injection assembly of the present invention; Figure 5 This is a cross-sectional schematic diagram of the adsorption component and the purging component of the present invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of component A in the middle; Figure 7 This is a three-dimensional cross-sectional view of the liquid injection component of the present invention; Figure 8 This is a cross-sectional view of the state after the collection cap of the present invention is opened.

[0016] The reference numerals in the accompanying drawings of this invention are as follows: 100. Frame; 200. Pushing assembly; 210. Slide rail; 220. Sliding seat; 230. Pushing device; 300. Lifting assembly; 310. Base plate; 320. Lifting device; 330. Guide rod; 400. Injection assembly; 410. Injection tubing; 500. Injection part; 510. Connecting cavity; 520. Dispersion cavity; 530. Guide channel; 540. Groove; 550. Recovery pipe; 551. Piston; 552. Fixing plate; 553. Recovery hole; 560. Spring; 570. Collection cap; 571. Air chamber; 572. One-way valve; 580. Air tube; 600. Blowing assembly; 610. Blower; 620. First hose; 630. Second air hose; 700, Adsorption assembly; 710, Recycling bin; 720, Adsorption device; 730, Second hose; 740, Connecting pipe. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 8 As shown, a hemodialysis concentrate filling device includes a filling device body located on one side of a conveyor belt. The filling device body includes a frame 100, on which a pushing component 200 is installed. A liquid injection component 400 is installed at the moving end of the pushing component 200. The liquid injection component 400 includes a liquid injection pipe 410 extending into a storage tank and a liquid injection element 500 detachably installed at the end of the liquid injection pipe 410. The liquid injection element 500 has a connecting cavity 510 and a dispersion cavity 520 inside. The inner wall of the bottom of the dispersion cavity 520 has multiple inwardly recessed guide grooves 530. The end of the guide groove 530 away from the dispersion cavity 520 is inclined downward at 45°. A through hole communicating with the guide groove 530 is opened on the outer wall of the liquid injection element 500. The liquid injection element 500 is detachably threaded to the end of the liquid injection pipe 410 for easy replacement and maintenance of the liquid injection element 500.

[0019] A groove 540 is provided on the bottom wall of the injection unit 500. A recovery tube 550 is slidably installed at the center of the dispersion chamber 520 and the groove 540. The top of the recovery tube 550 has a piston 551 that cooperates with the connecting chamber 510. A collection cap 570 for wrapping the through hole is installed at the bottom of the recovery tube 550. A fixing plate 552 is connected to the outer wall of the recovery tube 550 located in the groove 540. A spring 560 is fixedly installed between the top wall of the fixing plate 552 and the top wall of the groove 540. The spring 560 is used to provide elastic force to keep the collection cap 570 pressed upward.

[0020] The diameter of the dispersion chamber 520 is larger than that of the connecting chamber 510, so that when the electrolyte is injected, the piston part 551 moves downward under the pressure of the electrolyte. At this time, the piston part 551 is located in the dispersion chamber 520, so that the dialysate enters the dispersion chamber 520 through the connecting chamber 510. At the same time, it drives the collection cap 570 to move downward to unwrap the through hole and inject dialysate into the storage tank through the through hole on the guide groove 530.

[0021] It should be noted that the dialysate first enters the connecting chamber 510, then flows into the dispersion chamber 520, and is then divided and guided by multiple guide channels 530, flowing out in the form of multiple inclined and relatively gentle liquid flows, rather than a concentrated liquid column. This reduces the impact force of the liquid on the bottom of the storage tank and avoids liquid splashing that could cause the injection tube 410 to be contaminated with dialysate.

[0022] Understandably, the collection cap 570 is designed to collect excess dialysate from the through-hole after injection, preventing it from dripping and causing contamination or waste, or flowing into the subsequent storage tank and affecting the quality of the dialysate.

[0023] Specifically, during the filling of dialysate, under the pressure generated, the piston 551 overcomes the elastic force of the spring 560 and moves downward, causing the piston 551 to enter the dispersion chamber 520 and disengage from the bottom of the connecting chamber 510. At the same time, the collecting cap 570 moves downward, exposing the through hole, and filling can then be carried out. After filling is completed, the pressure of the dialysate disappears. Under the restoring force of the spring 560, the piston 551 is pushed upward, causing the piston 551 to re-engage with the connecting cavity 510, preventing the liquid in the injection tube 410 from continuing to drain. At the same time, the collection cap 570 is reset, both re-enclosing the through hole and collecting the small amount of residual liquid seeping from the guide groove 530 and the through hole into the collection cap 570, avoiding the risk of residual liquid dripping onto the next storage tank, the ground, or equipment during subsequent filling processes.

[0024] The entire anti-drip process is completed automatically by the mechanical structure without human intervention, which improves the automation level and operational reliability of the equipment.

[0025] like Figures 5 to 8 As shown, the recovery tube 550 has a cavity inside, and the outer wall of the recovery tube 550 has multiple recovery holes 553 that connect the cavity and the collection cap 570. The multiple recovery holes 553 are arranged at equal intervals along the circumference of the recovery tube 550. An adsorption assembly 700 is installed in the cavity. The adsorption assembly 700 includes a recovery box 710 located at the frame 100 and a connecting pipe 740 threaded into the inner wall of the injection tube 410. An adsorption device 720 is installed inside the recovery box 710. The adsorption device 720 is used to create a negative pressure inside the recovery tube 550. The adsorption device 720 is used to recover the dialysate in the collection cap 570 through the connecting pipe 740 and the recovery tube 550, avoiding secondary pollution caused by prolonged exposure to the collection cap 570. The adsorption device 720 can be a vacuum pump. A second flexible tube 730 is installed at the input end of the adsorption device 720. One end of the connecting pipe 740 is slidably inserted into the recovery tube 550, and the other end of the connecting pipe 740 is connected to the second flexible tube 730.

[0026] It should be noted that the connecting tube 740 and the recycling tube 550 are internally slidably connected, ensuring that the connecting tube 740 and the recycling tube 550 remain connected when the recycling tube 550 moves up and down.

[0027] Specifically, after filling is completed, the collection cap 570 wraps upwards around the end of the injection component 500 under the action of the spring 560. At the same time, the adsorption device 720 is activated to actively absorb the residual liquid collected in the collection cap 570. The sucked-in residual liquid is transported to the recovery box 710 at the frame 100 through the second hose 730 for unified collection and treatment. This avoids residual liquid remaining in the collection cap 570 and immediately removes the residual liquid, fundamentally cutting off the possibility of microbial growth at the collection cap 570. This further improves the filling quality of the dialysis fluid, reduces the risk of cross-contamination, and improves the stability and efficiency of continuous equipment operation.

[0028] like Figures 1 to 8 As shown, the inside of the recovery pipe 550 is connected to an air pipe 580 coaxially arranged with the recovery pipe 550, the inside of the collection cap 570 has an air chamber 571, the inside of the air pipe 580 has an air passage communicating with the air chamber 571, and multiple one-way valves 572 are installed on the inner wall of the collection cap 570, with the output end of the one-way valve 572 inclined downward.

[0029] A purging assembly 600 is connected to the airway. The purging assembly 600 includes a blower 610 located at the frame 100 and a second air pipe 630 threaded onto the inner wall of the connecting pipe 740. A first flexible hose 620 is installed at the output end of the blower 610. One end of the second air pipe 630 is slidably inserted into the inside of the first pipe 580, and the other end of the second air pipe 630 is connected to the first flexible hose 620.

[0030] It should be noted that one end of the second air tube 630 is slidably inserted into the inside of the first tube 580, ensuring that the second air tube 630 and the first tube 580 remain connected when the recovery tube 550 moves up and down.

[0031] Specifically, the blower 610 on the frame 100 discharges air through the first hose 620 and the second air tube 630 into the air passage inside the first air tube 580, and finally into the air chamber 571 inside the collection cap 570. The gas accumulates in the air chamber 571 and is sprayed out at a downward angle through multiple one-way valves 572, ensuring that the gas can accurately blow away the key parts most likely to have residual dialysate, such as the inner wall of the collection cap 570, the bottom outer wall of the liquid injection component 500, and the outlet of the guide channel 530, so that the dialysate can accumulate at the bottom of the collection cap 570.

[0032] In addition, the gas can be drawn into the recovery tube 550 and the connecting tube 740 in conjunction with the adsorption component 700 to purge the inner wall of the tube, preventing the dialysate from remaining in the recovery tube 550, the connecting tube 740, the collection cap 570 and the through hole.

[0033] Understandably, the one-way valve 572 is designed to prevent dialysate from flowing back into the air chamber 571 of the collection cap 570 during filling or recovery of residual liquid.

[0034] like Figure 3 As shown, a through groove is provided at the frame 100, and sliding grooves 210 are provided on both sides of the inner wall of the through groove. The pushing component 200 includes a sliding seat 220 that is slidably disposed in the sliding groove 210. The side wall of the sliding seat 220 has a horizontally arranged mounting part. The liquid injection component 400 is installed at the mounting part. A pushing device 230 is installed between the frame 100 and the sliding seat 220. The pushing device 230 is used to push the sliding seat 220 to move in a direction perpendicular to the external conveyor belt so as to realize the vertical alignment of the liquid injection component 400 and the liquid storage tank. The pushing device 230 can be a cylinder or a hydraulic cylinder.

[0035] It should be noted that, by setting up the pushing device 230, when the externally installed conveyor belt transports the empty liquid storage tank to the filling station, the pushing device 230 moves the liquid injection component 400 directly above the liquid storage tank to be filled, so that the liquid injection component 400 is vertically aligned with the liquid storage tank, which facilitates vertical alignment of liquid storage tanks of different positions or different specifications.

[0036] like Figures 1 to 8 As shown, a lifting assembly 300 is installed at the bottom of the frame 100. The lifting assembly 300 includes a base plate 310 for installation on the top of one side of the externally installed conveyor belt. A lifting device 320 is installed on the base plate 310. The frame 100 is installed at the lifting end of the lifting device 320. The lifting device 320 is used to drive the liquid injection assembly 400 to extend downward into the liquid storage tank for docking. It can be a cylinder or a hydraulic cylinder.

[0037] A circular hole is provided at the frame 100, and a guide rod 330 that mates with the circular hole is installed at the top of the base plate 310. A limit block is installed at the top of the guide rod 330 that passes through the circular hole, which improves the stability of the frame 100 during vertical lifting.

[0038] It should be noted that, with the lifting device 320, when the conveyor belt transports the empty storage tank to the filling station, the lifting device 320 drives the liquid injection component 400 to descend and extend into the tank to fill the dialysis fluid. After filling is completed, it automatically rises again, realizing the automation of the production line and greatly improving the filling efficiency.

[0039] Specifically, when this equipment is in use, when the conveyor belt transports the empty storage tank to the filling station, the pushing device 230 moves the injection component 400 to directly above the storage tank to be filled, so that the injection component 400 is vertically aligned with the storage tank. Then, the lifting device 320 drives the injection component 400 to descend and extend into the tank to fill the dialysate. During filling, under the pressure of the dialysate, piston 551 moves downward against the elastic force of spring 560, causing piston 551 to enter the dispersion chamber 520 and disengage from the bottom of the connecting chamber 510. Simultaneously, the collection cap 570 moves downward, exposing the through-hole. The through-hole guides the dialysate in the dispersion chamber 520 into the inner wall of the storage tank. After filling, the pressure of the dialysate disappears, and under the restoring force of spring 560, piston 551 is pushed upward, causing piston 551 to re-engage with the connecting chamber 510, preventing further liquid discharge from the injection tube 410. At the same time, the collection cap 570 resets, re-enclosing the through-hole. At this time, the adsorption device 720 and the blower 610 are activated to actively absorb the residual liquid collected in the collection cap 570. The sucked-in residual liquid is transported to the recycling box 710 at the frame 100 through the second hose 730. At the same time, the blower 610 discharges gas through the first hose 620 and the second air pipe 630 into the air passage inside the first air pipe 580, and finally enters the air chamber 571 inside the collection cap 570. The gas accumulates in the air chamber 571 and drives multiple one-way valves 572 to spray out at a downward angle to purge the inner wall of the collection cap 570, the bottom outer wall of the liquid injection part 500, and the through hole. After the liquid remaining in the collection cap 570 is adsorbed and recovered, the gas will be drawn into the recovery pipe 550 and the connecting pipe 740 through the adsorption device 720 to purge the inner wall of the pipe.

[0040] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of this template.

[0041] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A hemodialysis concentrate filling device, characterized in that, The filling equipment includes a main body of a filling device located on one side of a conveyor belt. The main body of the filling equipment includes a frame (100), a push assembly (200) is installed on the frame (100), and a liquid injection assembly (400) is installed at the moving end of the push assembly (200). The liquid injection assembly (400) includes a liquid injection pipe (410) that extends into a liquid storage tank and a liquid injection component (500) that is detachably installed at the end of the liquid injection pipe (410). The liquid injection component (500) has a connecting cavity (510) and a dispersion cavity (520) inside. The bottom inner wall of the dispersion cavity (520) has multiple inwardly recessed guide grooves (530). The outer wall of the liquid injection component (500) has a through hole that communicates with the guide grooves (530). A groove (540) is provided on the bottom wall of the injection part (500). A recovery tube (550) is slidably installed at the center of the dispersion chamber (520) and the groove (540). The top of the recovery tube (550) has a piston (551) that cooperates with the connecting chamber (510). A collection cap (570) for forming a wrap around the through hole is installed at the bottom of the recovery tube (550). A fixing plate (552) is connected to the outer wall of the recovery tube (550) located in the groove (540). A spring (560) is fixedly installed between the top wall of the fixing plate (552) and the top wall of the groove (540). The spring (560) is used to provide elastic force to keep the collection cap (570) pressed upward.

2. The hemodialysis concentrate filling equipment according to claim 1, characterized in that, The recovery tube (550) has a cavity inside. The outer wall of the recovery tube (550) has multiple (553) recovery holes that connect the cavity and the collection cap (570). An adsorption assembly (700) is installed in the cavity. The adsorption assembly (700) includes a recovery box (710) located on the frame (100) and a connecting tube (740) threaded on the inner wall of the injection tube (410). An adsorption device (720) is installed inside the recovery box (710). A second flexible tube (730) is installed at the input end of the adsorption device (720). One end of the connecting tube (740) is slidably inserted into the recovery tube (550), and the other end of the connecting tube (740) is connected to the second flexible tube (730).

3. The hemodialysis concentrate filling equipment according to claim 2, characterized in that, The inside of the recovery pipe (550) is connected to an air pipe (580) that is coaxially arranged with the recovery pipe (550). The inside of the collection cap (570) is an air chamber (571). The inside of the air pipe (580) is an air passage that communicates with the air chamber (571). Multiple one-way valves (572) are installed on the inner wall of the collection cap (570). The output end of the one-way valve (572) is inclined downward.

4. The hemodialysis concentrate filling equipment according to claim 3, characterized in that, A purge assembly (600) is connected to the airway. The purge assembly (600) includes a blower (610) located on the frame (100) and a second air pipe (630) threaded on the inner wall of the connecting pipe (740). A first hose (620) is installed at the output end of the blower (610). One end of the second air pipe (630) is slidably inserted into the inside of the spring (560), and the other end of the second air pipe (630) is connected to the first hose (620).

5. The hemodialysis concentrate filling equipment according to claim 1, characterized in that, A through groove is provided at the frame (100), and sliding grooves (210) are provided on both sides of the inner wall of the through groove. The pushing component (200) includes a sliding seat (220) that is slidably disposed in the sliding groove (210). The side wall of the sliding seat (220) has a horizontally arranged mounting part. The liquid injection component (400) is installed at the mounting part. A pushing device (230) is installed between the frame (100) and the sliding seat (220).

6. The hemodialysis concentrate filling equipment according to claim 1, characterized in that, The bottom of the frame (100) is equipped with a lifting assembly (300), which includes a base plate (310). A lifting device (320) is installed on the base plate (310), and the frame (100) is installed at the lifting end of the lifting device (320).

7. The hemodialysis concentrate filling equipment according to claim 6, characterized in that, A circular hole is provided at the frame (100), and a guide rod (330) that mates with the circular hole is installed at the top of the base plate (310). A limit block is installed at the top of the guide rod (330) that passes through the circular hole.