A device for dispensing a quantitatively proportioned nutrient solution

Abstract

The present application provides a kind of quantitatively proportioned nutrient solution dispensing device, including base, base is provided with multiple groups of parallelly arranged dispensing units, dispensing unit includes shell, piston liquid supply mechanism is provided on shell, the outlet end of multiple groups of piston liquid supply mechanism is connected through confluence pipe, two groups of rotatable driving discs are arranged in shell, the driving disc in every adjacent two groups of dispensing units can rotate synchronously;Along the center line of two groups of driving discs, mounting shaft is slidably arranged, adjusting mechanism for driving mounting shaft to slide is arranged on shell, piston rod in piston liquid supply mechanism and mounting shaft are connected by driving mechanism, when driving disc rotates, piston rod is driven to reciprocatingly lift by mounting shaft and driving mechanism.The device can quickly and accurately proportion multiple groups of nutrient solution, accurately supply multiple nutrients for patients, and improve the recovery efficiency of patients.

Description

Technical Field

[0001] The present invention specifically relates to a device for quantitatively proportioning nutrient solution preparation. Background Technology

[0002] Nutrient solutions consist of carbohydrates, amino acids, and fats, playing a vital supporting role in human life functions. Generally, nutrient solutions are infused by mixing multiple nutrients together, thus requiring careful mixing and proportioning to improve supply efficiency and reduce the workload of staff.

[0003] However, patients often need to receive nutritional fluids multiple times a day. If the fluids need to be reconstituted each time they are given, it will consume a lot of the staff’s time. Therefore, a special nutritional fluid preparation device is needed to assist in this process.

[0004] For example, Chinese invention patent No. 202210699158.7 provides a nutrient solution preparation device. This device places the filling container on the holder of the stirrer, and then pushes the stirring paddle and push rod downward by operating the handle, which automatically opens the separator without the need for equipment to start the separator, saving time. However, the existing nutrient solution preparation device is not convenient for quickly and flexibly and accurately controlling the supply of multiple nutrient solutions, which leads to deviations in the proportion of various nutrient solutions when preparing the nutrient solutions, and cannot guarantee that the patient receives adequate nutrition. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a quantitative nutrient solution preparation device to solve the technical problem mentioned in the background art: existing nutrient solution preparation devices are inconvenient to quickly and flexibly and accurately control the supply of various nutrient solutions, which leads to deviations in the proportion of various nutrient solutions during preparation and makes it impossible to guarantee sufficient supply of multiple nutrients to patients.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quantitatively proportioned nutrient solution preparation device, comprising a base, wherein multiple sets of parallel preparation units are arranged on the base, and each preparation unit includes:

[0007] The housing is provided with a piston liquid supply mechanism, and the liquid outlets of multiple sets of the piston liquid supply mechanism are connected by a confluence pipe.

[0008] Two sets of drive discs are provided and are rotatably disposed inside the housing. The drive discs in each pair of adjacent dispensing units can rotate synchronously.

[0009] A mounting shaft is slidably disposed between the two sets of drive discs along the center line of the two sets of drive discs; the housing is provided with an adjustment mechanism for driving the mounting shaft to slide.

[0010] The drive mechanism is connected to the mounting shaft and the piston rod in the piston supply mechanism. When the drive disc rotates, it drives the piston rod to reciprocate up and down through the mounting shaft and the drive mechanism.

[0011] In a preferred embodiment, a support mechanism is provided on the base, and multiple sets of the dispensing units are fixed side by side on the base through the support mechanism.

[0012] In a preferred embodiment, the support mechanism includes:

[0013] The support frame is provided in two sets, one set of which is fixedly connected to the base, and the other set of which is slidably disposed on the base;

[0014] Two sets of fixing blocks are provided, and are respectively fixedly installed on opposite sides of the two sets of support frames. The housing has fixing grooves, and the fixing blocks are engaged within the fixing grooves.

[0015] A lead screw, rotatably mounted on the base along its axis, is screwed to a set of slidingly mounted support frames.

[0016] In a preferred embodiment, one set of drive discs in each group of mixing units is provided with a connecting post, and the other set of drive discs is provided with a connecting hole. The connecting post slides along its axis through the connecting hole in the adjacent set of mixing units, and one set of drive discs in the mixing units is provided with a crank handle.

[0017] In a preferred embodiment, the piston supply mechanism includes:

[0018] A liquid storage tank is mounted on the housing. The liquid storage tank is equipped with a first one-way valve, and the inlet end of the first one-way valve is equipped with a liquid extraction pipe that extends into the liquid storage tank.

[0019] A temporary storage tank is disposed on the liquid storage tank and communicated with it via the first one-way valve; the piston rod is vertically and retractably disposed within the temporary storage tank; and

[0020] A second one-way valve is installed on and connected to the temporary storage tank, and an outlet pipe is provided at the outlet end of the second one-way valve.

[0021] In a preferred embodiment, the inlet end of the merging pipe is connected to multiple sets of outlet pipes.

[0022] In a preferred embodiment, the adjusting mechanism includes:

[0023] A mounting block is disposed on the mounting shaft;

[0024] A threaded post, rotatably mounted along its axis on one of the sets of drive discs, and screwed to the mounting block; and

[0025] A control component is disposed on the housing and can be selectively connected to the threaded post to drive the threaded post to rotate.

[0026] In a preferred embodiment, the control component includes:

[0027] A knob is provided on the housing, and the knob is rotatable and height-adjustable within the mounting cavity;

[0028] The first toothed disc is disposed at the end of the threaded column;

[0029] A second gear disc, disposed within the housing and coaxially connected to the knob, is selectively engaged or disengaged from the first gear disc; and

[0030] An elastic element is disposed between the knob and the mounting cavity.

[0031] In a preferred embodiment, a set of drive discs is provided with scale lines, the mounting block is disposed on one side of the scale lines, and the housing is provided with a reading slot for reading.

[0032] In a preferred embodiment, the drive mechanism includes:

[0033] A connecting bracket, one end of which is vertically adjustable and mounted on the bottom of the housing, and the other end connected to the piston rod; and

[0034] The connecting rod is hinged at one end to the connecting frame and at the other end to the mounting shaft.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] In use, this device adds the required nutrient solution to multiple sets of piston-operated feeding mechanisms. By controlling the rotation of the drive disc in one set of mixing units, the drive discs in multiple mixing units rotate synchronously. During rotation, the drive disc drives the mounting shaft in a circumferential motion, which in turn controls the rise and fall of the piston rod in the piston-operated feeding mechanism, discharging the nutrient solution for mixing. Furthermore, the mounting shaft can be driven to slide along the centerline of the drive disc via an adjustment mechanism, adjusting the radius of the circumferential motion of the mounting shaft during rotation. This, in turn, adjusts the rising and falling distance of the piston rod, precisely controlling the amount of nutrient solution discharged. This achieves rapid and precise mixing of multiple sets of nutrient solutions, providing patients with accurate supply of multiple nutrients and improving their recovery efficiency. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0038] Figure 1 This is a three-dimensional structural diagram of a quantitatively proportionable nutrient solution preparation device provided by the present invention;

[0039] Figure 2 This is a schematic diagram of the base structure in a quantitative nutrient solution preparation device of the present invention;

[0040] Figure 3 This is a schematic diagram of the mixing unit in a quantitatively proportionable nutrient solution mixing device of the present invention;

[0041] Figure 4 This is a cross-sectional view of the storage tank in a quantitative nutrient solution preparation device of the present invention.

[0042] Figure 5 This is a schematic diagram of the internal structure of the shell in a quantitative nutrient solution preparation device of the present invention. Figure 1 ;

[0043] Figure 6 for Figure 5 Enlarged view of region a in the middle;

[0044] Figure 7 Schematic diagram of the internal structure of the shell in the quantitative nutrient solution preparation device of the present invention Figure 2 ;

[0045] Figure label:

[0046] 101. Base; 102. Support frame; 103. Fixing block; 104. Lead screw;

[0047] 201. Housing; 202. Fixing groove; 203. Drive disc; 204. Connecting post; 205. Connecting hole; 206. Reading groove; 207. Scale line; 208. Handle;

[0048] 301. Threaded post; 302. Mounting block; 303. Mounting shaft; 304. First gear; 305. Mounting cavity; 306. Knob; 307. Second gear; 308. Elastic element;

[0049] 401. Connecting rod; 402. Connecting bracket; 403. Piston rod;

[0050] 501. Storage tank; 502. Temporary storage tank; 503. First check valve; 504. Suction pipe; 505. Second check valve; 506. Discharge pipe; 507. Combination pipe. Detailed Implementation

[0051] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0052] Example:

[0053] like Figure 1 , 2 As shown in Figure 3, the present invention provides a quantitatively proportioned nutrient solution preparation device, including a base 101, on which multiple sets of parallel preparation units are arranged. Each preparation unit includes a housing 201. A support mechanism is provided on the base 101, and the multiple sets of preparation units are fixed side-by-side on the base 101 through the support mechanism. The support mechanism includes two sets of support frames 102, one set of support frames 102 is fixedly connected to the base 101, and the other set of support frames 102 is slidably arranged on the base 101. Fixing blocks 103 are provided on opposite sides of the two sets of support frames 102. A fixing groove 202 is opened on the housing 201, and the fixing blocks 103 are engaged in the fixing groove 202. A rotatable lead screw 104 is provided on the base 101, and the lead screw 104 is screwed to the slidably installed set of support frames 102.

[0054] Before use, the device can be controlled by rotating the lead screw 104 to make one set of support frames 102 slide along the axis of the lead screw 104, thereby controlling the opening and closing of the two sets of support frames 102. Then, an appropriate number of adjustment units can be selected for use. Each set of adjustment units has two sets of rotatable drive discs 203 in the housing 201. The drive discs 203 in each pair of adjacent adjustment units can rotate synchronously. One set of drive discs 203 in each adjustment unit is provided with a connecting post 204, and the other set of drive discs 203 is provided with a connecting hole 205. The connecting post 204 slides along its axis through the connecting hole 205 in the adjacent set of adjustment units, and a crank 208 is provided on the drive disc 203 in one set of adjustment units. The connecting column 204 can be inserted into the corresponding connecting hole 205 to assemble multiple sets of dispensing units. By controlling the opening and closing of the support frame 102, the fixing block 103 can be locked into the corresponding fixing groove 202 to fix the position of multiple sets of shells 201. This allows for the stable assembly of multiple sets of dispensing units, facilitating the dispensing of different quantities of nutrient solution.

[0055] like Figure 3 , 4 As shown in Figure 7, in this embodiment, a piston liquid supply mechanism is provided on the housing 201. The liquid outlets of multiple sets of piston liquid supply mechanisms are connected through a confluence pipe 507. The piston liquid supply mechanism includes a liquid storage tank 501 provided on the housing 201. A first one-way valve 503 is provided on the liquid storage tank 501. A suction pipe 504 extending into the liquid storage tank 501 is provided at the liquid inlet end of the first one-way valve 503. A temporary storage tank 502 connected through the first one-way valve 503 is provided on the liquid storage tank 501. A liftable piston rod 403 is provided inside the temporary storage tank 502. A second one-way valve 505 is connected on the temporary storage tank 502. A liquid outlet pipe 506 is provided at the liquid outlet end of the second one-way valve 505. The liquid inlet end of the confluence pipe 507 is connected to multiple sets of liquid outlet pipes 506.

[0056] The storage tank 501 is used to store various nutrient solutions and can be detachably connected to the shell 201. The piston rod 403 can be raised and lowered by controlling the piston rod 403. During the upward movement of the piston rod 403, the nutrient solution in the storage tank 501 is drawn into the temporary storage tank 502 through the first one-way valve 503 and the liquid extraction pipe 504. During the downward movement of the piston rod 403, the nutrient solution in the temporary storage tank 502 is discharged through the second one-way valve 505 and the liquid outlet pipe 506. The nutrient solution discharged from multiple sets of liquid outlet pipes 506 is collected and mixed through the confluence pipe 507. The confluence pipe 507 with an appropriate number of liquid inlet pipes can be selected for use to facilitate the quick and easy mixing of various nutrient solutions.

[0057] like Figure 5 , 7As shown, in this embodiment, a mounting shaft 303 is slidably arranged between the two sets of drive discs 203 along their center line. The mounting shaft 303 and the piston rod 403 in the piston liquid supply mechanism are connected through a drive mechanism. When the drive disc 203 rotates, the piston rod 403 is driven to reciprocate up and down through the mounting shaft 303 and the drive mechanism. The drive mechanism includes a connecting frame 402 and a connecting rod 401. One end of the connecting frame 402 is slidably disposed at the bottom of the housing 201, and the other end is connected to the piston rod 403. One end of the connecting rod 401 is hinged to the connecting frame 402, and the other end is hinged to the mounting shaft 303.

[0058] Since the mounting shaft 303 is slidably connected to two sets of drive discs 203 in each mixing unit, and the sliding direction runs through the center line of the drive discs 203, one set of drive discs 203 can drive the other set of drive discs 203 to rotate during rotation. Therefore, by simply turning the handle 208, the drive discs 203 in multiple mixing units can be controlled to rotate synchronously with the cooperation of the connecting column 204 and the connecting hole 205, so that multiple sets of mounting shafts 303 can rotate synchronously. During rotation, the mounting shaft 303 forms a crank-slider mechanism with the connecting frame 402 and the connecting rod 401, thereby controlling the lifting and lowering of the connecting frame 402, which in turn drives the piston rod 403 to lift and lower, discharging the nutrient solution from the temporary storage tank 502. Moreover, the mixing of a single set of nutrient solution can be completed by turning the handle 208 once, without the need to mix multiple sets of nutrient solutions separately, thus effectively improving the efficiency of nutrient solution mixing and reducing the labor intensity of the staff.

[0059] like Figure 5 , 6 As shown, in this embodiment, the housing 201 is provided with an adjustment mechanism for driving the mounting shaft 303 to slide. The adjustment mechanism includes a mounting block 302 disposed on the mounting shaft 303. A set of drive discs 203 are provided with rotatable threaded posts 301, which are screwed to the mounting block 302. The housing 201 is provided with a control component that can be selectively connected to the threaded posts 301, and the threaded posts 301 are driven to rotate by the control component. The control component includes a knob 306. The housing 201 is provided with a mounting cavity 305. The knob 306 is rotatably and vertically disposed in the mounting cavity 305. A first gear 304 is disposed at the end of the threaded post 301. A second gear 307 is disposed in the housing 201 and coaxially connected to the knob 306. The second gear 307 can selectively engage or disengage with the first gear 304. An elastic element 308 is disposed between the knob 306 and the mounting cavity 305.

[0060] When it is necessary to adjust the ratio of a certain nutrient solution, the drive plate 203 can be rotated by turning the handle 208 until the threaded column 301 rotates to a vertical position so that the first toothed plate 304 faces upward. Then, the second toothed plate 307 is engaged with the first toothed plate 304 by pressing the knob 306 downward. Then, the threaded column 301 is rotated by turning the knob 306. During the rotation, the threaded column 301 can drive the mounting block 302 to slide along the center line of the drive plate 203 through the threaded engagement, so as to adjust the radius of the circumferential movement of the mounting shaft 303 when the drive plate 203 rotates, thereby adjusting the lifting distance of the piston rod 403 when the drive plate 203 rotates, so as to adjust the single supply amount of nutrient solution. Furthermore, a scale line 207 is provided on one of the drive disks 203, and a mounting block 302 is located on one side of the scale line 207. A reading groove 206 for reading is provided on the housing 201. The distance of the mounting block 302 can be precisely adjusted through the scale line 207, so that the supply of nutrient solution can be more precisely controlled.

[0061] Specific usage and beneficial effects of the present invention:

[0062] When using this device, a suitable number of mixing units can be selected for assembly and fixed on the base 101 for easy operation. Before mixing the nutrient solution, the storage tank 501 is used to store different types of nutrient solutions. The drive disc 203 in one set of mixing units can be rotated by turning the crank handle 208. During the rotation of one set of drive discs 203, the drive discs 203 in multiple sets of mixing units rotate synchronously with the cooperation of the connecting column 204 and the connecting hole 205. During the rotation of multiple sets of drive discs 203, multiple sets of mounting shafts 303 can be driven to make circumferential movements. Then, with the cooperation of the connecting rod 401 and the connecting frame 402, multiple sets of piston rods 403 in the piston liquid supply mechanism are controlled to rise and fall, so as to discharge the nutrient solution from the piston liquid supply mechanism for mixing. It can simultaneously complete the mixing of multiple nutrient solutions, effectively reducing the labor intensity of the staff.

[0063] Furthermore, by rotating the drive disc 203 to its initial position, the threaded column 301 is made vertical, and the first toothed disc 304 is kept facing upward. By pressing the button downward, the first toothed disc 304 is engaged with the second toothed disc 307. Then, by rotating the button, the threaded column 301 is rotated. Subsequently, the threaded engagement between the threaded column 301 and the mounting block 302 drives the mounting shaft 303 to slide along the center line of the drive disc 203. The radius of the circumferential movement of the mounting shaft 303 during the rotation of the drive disc 203 is adjusted, thereby adjusting the lifting distance of the piston rod 403. This allows for precise control of the amount of nutrient solution discharged, achieving the effect of rapid and precise mixing of multiple nutrient solutions, providing patients with precise supply of multiple nutrients, and improving the patient's recovery efficiency.

[0064] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A device for quantitatively proportioning nutrient solution preparation, characterized in that, The system includes a base (101) on which multiple sets of parallel dispensing units are disposed, the dispensing units including: The housing (201) is provided with a piston liquid supply mechanism, and the liquid outlet ends of multiple sets of the piston liquid supply mechanism are connected through a confluence pipe (507). Two sets of drive disks (203) are provided and are rotatably disposed in the housing (201). The drive disks (203) in each of the two adjacent sets of the dispensing units can rotate synchronously. The mounting shaft (303) is slidably disposed between the two sets of drive discs (203) along the center line of the two sets of drive discs (203), and the housing (201) is provided with an adjustment mechanism for driving the mounting shaft (303) to slide; and The drive mechanism is connected to the mounting shaft (303) and the piston rod (403) in the piston liquid supply mechanism. When the drive disk (203) rotates, it drives the piston rod (403) to reciprocate up and down through the mounting shaft (303) and the drive mechanism. A support mechanism is provided on the base (101), and multiple sets of the allocation units are fixed side by side on the base (101) through the support mechanism; The support mechanism includes: The support frame (102) is provided in two sets. One set of the support frame (102) is fixedly connected to the base (101), and the other set of the support frame (102) is slidably disposed on the base (101). Two sets of fixing blocks (103) are provided and are respectively fixedly installed on opposite sides of the two sets of support frames (102). A fixing groove (202) is provided on the housing (201), and the fixing block (103) is engaged in the fixing groove (202). A lead screw (104) is rotatably mounted on the base (101) along its axis and screwed to a set of slidingly mounted support frames (102). The adjustment mechanism includes: Mounting block (302) is disposed on the mounting shaft (303); A threaded post (301) is rotatably disposed on one of the drive discs (203) along its axis and is screwed to the mounting block (302); and A control component is disposed on the housing (201) and selectively connected to the threaded post (301) to drive the threaded post (301) to rotate; The control component includes: A knob (306) is provided on the housing (201) with a mounting cavity (305). The knob (306) is rotatable and height-adjustable in the mounting cavity (305). The first toothed disc (304) is disposed at the end of the threaded post (301); The second gear disc (307) is disposed within the housing (201) and coaxially connected to the knob (306), and can selectively engage or disengage with the first gear disc (304); and An elastic element (308) is disposed between the knob (306) and the mounting cavity (305).

2. The quantitatively proportionable nutrient solution preparation device according to claim 1, characterized in that: One of the driving disks (203) in each group of the mixing units is provided with a connecting post (204), and the other driving disk (203) is provided with a connecting hole (205). The connecting post (204) slides along its axis through the connecting hole (205) in the adjacent group of the mixing units, and a crank (208) is provided on the driving disk (203) in one group of the mixing units.

3. The quantitatively proportionable nutrient solution preparation device according to claim 1, characterized in that, The piston-feeding mechanism includes: A liquid storage tank (501) is provided on the housing (201). A first check valve (503) is provided on the liquid storage tank (501). A liquid extraction pipe (504) extending into the liquid storage tank (501) is provided at the liquid inlet end of the first check valve (503). A temporary storage tank (502) is disposed on the liquid storage tank (501) and communicated with it through the first one-way valve (503). The piston rod (403) is vertically and retractably disposed within the temporary storage tank (502). The second check valve (505) is installed on and connected to the temporary storage tank (502), and the outlet end of the second check valve (505) is provided with an outlet pipe (506).

4. The quantitatively proportionable nutrient solution preparation device according to claim 3, characterized in that: The inlet end of the merging pipe (507) is connected to multiple sets of outlet pipes (506).

5. The quantitatively proportionable nutrient solution preparation device according to claim 1, characterized in that: One of the drive disks (203) is provided with scale lines (207), the mounting block (302) is located on one side of the scale lines (207), and the housing (201) is provided with a reading groove (206) for reading.

6. The quantitatively proportionable nutrient solution preparation device according to claim 1, characterized in that, The driving mechanism includes: A connecting bracket (402) is vertically adjustable at one end at the bottom of the housing (201), and the other end is connected to the piston rod (403); and The connecting rod (401) is hinged at one end to the connecting frame (402) and at the other end to the mounting shaft (303).

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