Hemodialysis liquid proportioning and weighing device

Abstract

The utility model discloses a hemodialysis fluid proportioning and weighing device which comprises a machine body, a supporting frame and an injection head, the supporting frame is arranged at the rear end of the machine body and fixedly connected with the machine body, and the injection head is arranged on the front side of the upper end of the supporting frame. Through cooperative use of the machine body, the supporting frame, the injection head, the moving groove, the adjusting assembly, the positioning rod, the lead screw, a moving block, a knob, a positioning device, a box body, a positioning assembly, a control assembly, a positioning groove and a button wheel, the problems that when an existing liquid injection measuring electronic scale is used, the height of the injection head of the electronic scale cannot be adjusted according to the height of a measuring container; therefore, when liquid injection measurement is carried out on the container, the problems that the liquid is splashed due to the fact that the injection head is too high and the force of liquid falling to impact the container is large, and the injection head is too low and cannot be used for injection, so that the measurement work is inconvenient, and even the dialysate is splashed and wasted are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hemodialysis fluid proportioning and weighing, and particularly relates to a hemodialysis fluid proportioning and weighing device. Background Art

[0002] The precise proportioning of hemodialysis fluid is closely related to an advanced weighing device, which plays a crucial role in the process of hemodialysis. They ensure the accurate proportioning of the dialysis fluid, thus guaranteeing the effect of dialysis treatment and the safety of patients; not only improving the accuracy of dialysis fluid proportioning, but also simplifying the operation process and reducing human error; also bringing a safer and more comfortable treatment experience for patients; the weighing devices for hemodialysis fluid proportioning mainly include a dialysis fluid proportioning system, an injection measurement electronic scale, an automatic control system, etc.; among them, the injection measurement electronic scale is an electronic device specifically used for measuring the weight or volume of liquids, and is widely used in the production processes of industries such as chemical engineering, pharmaceuticals, food, and beverages; the injection measurement electronic scale is one of the indispensable important devices in modern industrial production, and its high-precision, stable and reliable performance provides a strong guarantee for the production of various industries.

[0003] The problems existing in the prior art are as follows: when the existing injection measurement electronic scale is in use, the height of its injection head cannot be adjusted according to the height of the measuring container. In this way, when injecting and measuring the container, there will be a situation where the injection head is too high and the impact force of the falling liquid on the container is relatively large, resulting in liquid splashing, and the injection head is too low and injection cannot be carried out, thus leading to the inconvenience of the measurement work and even the splashing and waste of dialysis fluid. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a hemodialysis fluid proportioning and weighing device, which has the advantages of being convenient to adjust the height of the injection head according to the height of the measuring container, avoiding the situation that the injection head is too low to inject or the injection head is too high to cause liquid to splash when falling and hitting the container, and solves the problems that when the existing injection measurement electronic scale is in use, the height of its injection head cannot be adjusted according to the height of the measuring container. In this way, when injecting and measuring the container, there will be a situation where the injection head is too high and the impact force of the falling liquid on the container is relatively large, resulting in liquid splashing, and the injection head is too low and injection cannot be carried out, thus leading to the inconvenience of the measurement work and even the splashing and waste of dialysis fluid.

[0005] The present utility model is realized as follows. A blood dialysis fluid proportioning and weighing device includes a machine body, a support frame, and an injection head. The support frame is arranged at the rear end of the machine body and is fixedly connected to the machine body. The injection head is arranged at the front side of the upper end of the support frame. A moving groove is formed inside the support frame, an adjusting component is arranged inside the moving groove, a positioning device is arranged at the rear end of the adjusting component, the injection head is fixedly connected to the adjusting component, and the injection head is movably connected to the support frame through the adjusting component.

[0006] As a preferred embodiment of the present utility model, the adjusting component includes a positioning rod, a lead screw, a moving block, and a knob. The number of the positioning rods is two, and they are respectively arranged on the left and right sides of the front end inside the moving groove. The upper and lower ends of the two positioning rods are respectively fixedly connected to the upper and lower ends inside the moving groove. The lead screw is arranged at the rear of the two lead screws, and its upper end is rotatably connected to the upper surface inside the moving groove, and its lower end extends out of the moving groove and is rotatably connected to the support frame. The moving block is sleeved on the surfaces of the positioning rod and the lead screw, and is slidably connected to the positioning rod and is threadedly connected to the lead screw. The front end of the moving block extends out of the moving groove, and is fixedly connected to the injection head and is movably connected to the support frame. The knob is fixedly connected to the lower end of the lead screw. By setting the adjusting component, it is used to adjust the support body of the injection head, and has the function of adjusting the height of the injection head according to the height of the measuring container when proportioning and weighing the dialysis fluid, avoiding the situation that the injection head is too low to inject, and the situation that the injection head is too high resulting in the liquid falling and impacting the container, causing the liquid to splash.

[0007] As a preferred embodiment of the present utility model, the positioning device includes a box body, a positioning component, and a control component. The box body is arranged at the rear end inside the moving groove, and is movably connected to the support frame and is fixedly connected to the rear end of the moving block. The positioning component is arranged inside the box body, and the control component is arranged in front of the positioning component. By setting the positioning device, it is used to position the adjusting component, and has the function of positioning and fixing the adjusting component to ensure the position after the injection head is adjusted to a suitable position.

[0008] As a preferred embodiment of the present utility model, the positioning assembly includes slide bars, a push plate, tension springs and pin blocks. The number of the slide bars is four, which are respectively arranged at the four corners inside the box body. The front and rear ends of the four slide bars are respectively fixedly connected to the front and rear inner surfaces of the box body. The push plate is sleeved on the surfaces of the four slide bars and is slidably connected to the slide bars. The number of the tension springs is four, which are respectively sleeved on the surfaces of the four slide bars. The front and rear ends of the four tension springs are respectively fixedly connected to the front inner surface of the box body and the rear surface of the push plate. The pin block is fixedly connected to the rear surface of the push plate, and the rear end extends out of the box body and is movably connected to the box body. By providing the positioning assembly, it is used to position the adjusting assembly, and has the function of cooperating with the positioning groove at the corresponding height during adjustment to fix the position of the adjusting assembly.

[0009] As a preferred embodiment of the present utility model, the control assembly includes a rotating rod, a special-shaped wheel, a travel groove and a limiting rod. The rotating rod is arranged at the front end inside the box body, and the right end is rotatably connected to the inner surface of the box body. The left end extends out of the moving groove and is rotatably connected to the box body. The rotating rod is movably connected to the support frame. The special-shaped wheel is sleeved on the right end surface of the rotating rod and is fixedly connected to the rotating rod. The travel groove is opened on the right surface of the special-shaped wheel and penetrates through the special-shaped wheel. The limiting rod is arranged in the travel groove and is movably connected to the travel groove. The right end of the limiting rod extends out of the travel groove and is fixedly connected to the inner surface of the box body. By providing the control assembly, it is used to control and drive the positioning assembly, and has the function of controlling the movement of the positioning assembly to position and release the positioning of the adjusting assembly.

[0010] As a preferred embodiment of the present utility model, a plurality of positioning grooves are opened on the rear surface of the support frame. The positioning grooves all penetrate into the moving groove and correspond to the positions of the pin blocks. By opening a plurality of positioning grooves on the rear surface of the support frame, it is used to cooperate with the positioning assembly, so as to play the role of fixing the adjusting assembly at different heights.

[0011] As a preferred embodiment of the present utility model, a knob wheel is arranged at one end of the rotating rod extending out of the moving groove. The knob wheel is fixedly connected to the rotating rod. By arranging the knob wheel at one end of the rotating rod extending out of the moving groove, it is used to rotate the rotating rod, and has the function of facilitating the rotation of the rotating rod to control the positioning device.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By using the combination of the machine body, support frame, injection head, moving groove, adjustment component, positioning rod, lead screw, moving block, knob, positioning device, box body, positioning component, sliding rod, push plate, tension spring, pin block, control component, rotating rod, special-shaped wheel, stroke groove, limiting rod, positioning groove and button wheel, the present utility model solves the problem that when the existing liquid injection measuring electronic scale is in use, the height of its injection head cannot be adjusted according to the height of the measuring container. When injecting and measuring the container, if the injection head is too high, the impact force of the falling liquid on the container is relatively large, resulting in liquid splashing, and if the injection head is too low, injection cannot be carried out, thus causing inconvenience in the measurement work and even splashing and wasting of dialysis fluid.

[0014] 2. By setting the adjustment component, which is used to support and adjust the injection head, when weighing and proportioning dialysis fluid, it can adjust the height of the injection head according to the height of the measuring container, avoiding the situation that injection cannot be carried out due to the injection head being too low and liquid splashing caused by the injection head being too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the liquid injection measuring electronic scale provided by an embodiment of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the positioning groove in the liquid injection measuring electronic scale provided by an embodiment of the present utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the positioning component in the liquid injection measuring electronic scale provided by an embodiment of the present utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the control component in the liquid injection measuring electronic scale provided by an embodiment of the present utility model.

[0019] In the figure: 1, machine body; 2, support frame; 3, injection head; 4, moving groove; 5, adjustment component; 51, positioning rod; 52, lead screw; 53, moving block; 54, knob; 6, positioning device; 61, box body; 62, positioning component; 621, sliding rod; 622, push plate; 623, tension spring; 624, pin block; 63, control component; 631, rotating rod; 632, special-shaped wheel; 633, stroke groove; 634, limiting rod; 7, positioning groove; 8, button wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to further understand the invention content, features and effects of the present utility model, the following embodiments are cited and described in detail in conjunction with the accompanying drawings.

[0021] The structure of the present utility model will be described in detail below with reference to the accompanying drawings.

[0022] As Figures 1 to 4 shown, a blood dialysis fluid proportioning and weighing device provided by an embodiment of the present utility model includes a body 1, a support frame 2, and an injection head 3. The support frame 2 is arranged at the rear end of the body 1 and is fixedly connected to the body 1. The injection head 3 is arranged at the front side of the upper end of the support frame 2. A moving groove 4 is formed inside the support frame 2. An adjusting component 5 is arranged inside the moving groove 4. A positioning device 6 is arranged at the rear end of the adjusting component 5. The injection head 3 is fixedly connected to the adjusting component 5. The injection head 3 is movably connected to the support frame 2 through the adjusting component 5.

[0023] Referring to Figure 1 and Figure 2 , the adjusting component 5 includes a positioning rod 51, a lead screw 52, a moving block 53, and a knob 54. The number of positioning rods 51 is two, and they are respectively arranged on the left and right sides at the front end inside the moving groove 4. The upper and lower ends of the two positioning rods 51 are respectively fixedly connected to the upper and lower ends inside the moving groove 4. The lead screw 52 is arranged at the rear of the two lead screws 52, and the upper end is rotatably connected to the upper surface inside the moving groove 4, and the lower end extends out of the moving groove 4 and is rotatably connected to the support frame 2. The moving block 53 is sleeved on the surfaces of the positioning rod 51 and the lead screw 52, and is slidably connected to the positioning rod 51 and is threadedly connected to the lead screw 52. The front end of the moving block 53 extends out of the moving groove 4, and is fixedly connected to the injection head 3 and is movably connected to the support frame 2. The knob 54 is fixedly connected to the lower end of the lead screw 52.

[0024] Adopting the above scheme: By setting the adjusting component 5, it is used to adjust the support of the injection head 3, and has the function of adjusting the height of the injection head 3 according to the height of the measuring container when proportioning and weighing the dialysis fluid, avoiding the situation that the injection head 3 is too low to inject, and the situation that the injection head 3 is too high resulting in the liquid falling and impacting the container causing liquid splashing.

[0025] Referring to Figure 2 , Figure 3 and Figure 4 , the positioning device 6 includes a box body 61, a positioning component 62, and a control component 63. The box body 61 is arranged at the rear end inside the moving groove 4, and is movably connected to the support frame 2 and is fixedly connected to the rear end of the moving block 53. The positioning component 62 is arranged inside the box body 61. The control component 63 is arranged in front of the positioning component 62.

[0026] Adopting the above scheme: By setting the positioning device 6, it is used to position the adjusting component 5, and has the function of positioning and fixing the adjusting component 5 to ensure the position after adjusting the injection head 3 to a suitable position.

[0027] Referring to Figure 3 and Figure 4, the positioning component 62 includes a slide bar 621, a push plate 622, a tension spring 623 and a pin block 624. The number of slide bars 621 is four, and they are respectively arranged at the four corners inside the box body 61. The front and rear ends of the four slide bars 621 are respectively fixedly connected to the front and rear surface inside the box body 61. The push plate 622 is sleeved on the surface of the four slide bars 621 and is slidably connected to the slide bars 621. The number of tension springs 623 is four, and they are respectively sleeved on the surface of the four slide bars 621. The front and rear ends of the four tension springs 623 are respectively fixedly connected to the front surface inside the box body 61 and the rear surface of the push plate 622. The pin block 624 is fixedly connected to the rear surface of the push plate 622, and the rear end extends out of the box body 61 and is movably connected to the box body 61.

[0028] Adopting the above solution: By setting the positioning component 62, it is used to position the adjusting component 5, and it has the function of cooperating with the positioning groove 7 at the corresponding height during adjustment to fix the position of the adjusting component 5.

[0029] Reference Figure 3 And Figure 4 , the control component 63 includes a rotating rod 631, a special-shaped wheel 632, a travel groove 633 and a limit rod 634. The rotating rod 631 is arranged at the front end inside the box body 61, and the right end is rotatably connected to the inner surface of the box body 61. The left end extends out of the moving groove 4 and is rotatably connected to the box body 61. The rotating rod 631 is movably connected to the support frame 2. The special-shaped wheel 632 is sleeved on the right end surface of the rotating rod 631 and is fixedly connected to the rotating rod 631. The travel groove 633 is opened on the right surface of the special-shaped wheel 632 and penetrates through the special-shaped wheel 632. The limit rod 634 is arranged in the travel groove 633 and is movably connected to the travel groove 633. The right end of the limit rod 634 extends out of the travel groove 633 and is fixedly connected to the inner surface of the box body 61.

[0030] Adopting the above solution: By setting the control component 63, it is used to control and drive the positioning component 62, and it has the function of controlling the movement of the positioning component 62 to position and release the positioning of the adjusting component 5.

[0031] Reference Figure 1 And Figure 2 , a plurality of positioning grooves 7 are opened on the rear surface of the support frame 2. The positioning grooves 7 all penetrate into the moving groove 4 and correspond to the position of the pin block 624.

[0032] Adopting the above solution: By opening a plurality of positioning grooves 7 on the rear surface of the support frame 2, it is used to cooperate with the positioning component 62, so as to play the role of fixing the adjusting component 5 at different heights.

[0033] Reference Figure 3 And Figure 4, one end of the rotating rod 631 extending out of the moving groove 4 is provided with a knob wheel 8, and the knob wheel 8 is fixedly connected to the rotating rod 631.

[0034] Adopting the above solution: By arranging the knob wheel 8 at one end of the rotating rod 631 extending out of the moving groove 4 to rotate the rotating rod 631, it has the function of facilitating the rotation of the rotating rod 631 to control the positioning device 6.

[0035] The working principle of the present utility model:

[0036] During adjustment, by rotating the knob wheel 8 clockwise to drive the rotation of the rotating rod 631, the rotation drives the special-shaped wheel 632 to rotate. When rotating, the limiting rod 634 restricts the rotation angle of the special-shaped wheel 632 according to the trajectory of the stroke groove 633 in the stroke groove 633. When the special-shaped wheel 632 is rotated to the limit and its protrusion does not squeeze the push plate 622, the tension spring 623 will pull the push plate 622 forward on the surface of the sliding rod 621 to drive the pin block 624 to move out of the positioning groove 7, releasing the fixation of the adjustment assembly 5. Then, by rotating the knob 54 to drive the lead screw 52 to rotate in the moving groove 4, while the lead screw 52 rotates, it drives the moving block 53 threaded thereto to move on the surface of the positioning rod 51. While the moving block 53 moves, it drives the injection head 3 to move. After adjusting the height of the injection head 3 to the appropriate height of the positioning groove 7, by rotating the knob wheel 8 counterclockwise to drive the rotation of the rotating rod 631, the rotating rod 631 rotates to drive the special-shaped wheel 632 to rotate counterclockwise, causing its protrusion to move the push plate 622 backward on the surface of the sliding rod 621 and simultaneously stretching the tension spring 623. After rotating the special-shaped wheel 632 counterclockwise to the limit, the push plate 622 will drive the pin block 624 to insert into the corresponding positioning groove 7 to position the adjustment assembly 5, thereby completing the adjustment and fixation of the injection head 3.

[0037] To sum up: For this hemodialysis fluid proportioning weighing device, by the combined use of the machine body 1, support frame 2, injection head 3, moving groove 4, adjustment assembly 5, positioning rod 51, lead screw 52, moving block 53, knob 54, positioning device 6, box body 61, positioning assembly 62, sliding rod 621, push plate 622, tension spring 623, pin block 624, control assembly 63, rotating rod 631, special-shaped wheel 632, stroke groove 633, limiting rod 634, positioning groove 7 and knob wheel 8, it solves the problem that when the existing liquid injection measuring electronic scale is in use, the height of its injection head cannot be adjusted according to the height of the measuring container. When injecting liquid into the container for measurement, the situation where the injection head is too high and the impact force of the falling liquid on the container is large, resulting in liquid splashing, and the injection head is too low and injection cannot be carried out, thus causing inconvenience in the measurement work and even splashing and wasting of the dialysis fluid.

[0038] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blood dialysis fluid proportioning and weighing device, comprising a body (1), a support frame (2) and an injection head (3), wherein the support frame (2) is arranged at the rear end of the body (1) and fixedly connected to the body (1), and the injection head (3) is arranged at the front side of the upper end of the support frame (2), and is characterized in that: A moving groove (4) is formed inside the support frame (2). An adjusting assembly (5) is arranged inside the moving groove (4). A positioning device (6) is arranged at the rear end of the adjusting assembly (5). The injection head (3) is fixedly connected to the adjusting assembly (5). The injection head (3) is movably connected to the support frame (2) through the adjusting assembly (5).

2. The blood dialysis fluid proportioning and weighing device according to claim 1, characterized in that: The adjusting assembly (5) includes a positioning rod (51), a lead screw (52), a moving block (53), and a knob (54). The number of the positioning rods (51) is two, and they are respectively arranged on the left and right sides at the front end inside the moving groove (4). The upper and lower ends of the two positioning rods (51) are respectively fixedly connected to the upper and lower ends inside the moving groove (4). The lead screw (52) is arranged at the rear between the two lead screws (52). The upper end is rotatably connected to the upper surface inside the moving groove (4), and the lower end extends out of the moving groove (4) and is rotatably connected to the support frame (2). The moving block (53) is sleeved on the surfaces of the positioning rod (51) and the lead screw (52), and is slidably connected to the positioning rod (51) and threadedly connected to the lead screw (52). The front end of the moving block (53) extends out of the moving groove (4), and is fixedly connected to the injection head (3) and is movably connected to the support frame (2). The knob (54) is fixedly connected to the lower end of the lead screw (52).

3. The blood dialysis fluid proportioning and weighing device according to claim 2, wherein: The positioning device (6) includes a box body (61), a positioning assembly (62), and a control assembly (63). The box body (61) is arranged at the rear end inside the moving groove (4), and is movably connected to the support frame (2) and fixedly connected to the rear end of the moving block (53). The positioning assembly (62) is arranged inside the box body (61). The control assembly (63) is arranged in front of the positioning assembly (62).

4. The blood dialysis fluid proportioning and weighing device according to claim 3, characterized in that: The positioning assembly (62) includes a slide rod (621), a push plate (622), a tension spring (623), and a pin block (624). The number of the slide rods (621) is four, and they are respectively arranged at the four corners inside the box body (61). The front and rear ends of the four slide rods (621) are respectively fixedly connected to the front and rear surfaces inside the box body (61). The push plate (622) is sleeved on the surfaces of the four slide rods (621) and is slidably connected to the slide rods (621). The number of the tension springs (623) is four, and they are respectively sleeved on the surfaces of the four slide rods (621). The front and rear ends of the four tension springs (623) are respectively fixedly connected to the front surface inside the box body (61) and the rear surface of the push plate (622). The pin block (624) is fixedly connected to the rear surface of the push plate (622), and the rear end extends out of the box body (61) and is movably connected to the box body (61).

5. The blood dialysis fluid proportioning and weighing device according to claim 4, wherein: The control component (63) includes a rotating rod (631), a special-shaped wheel (632), a travel groove (633) and a limit rod (634). The rotating rod (631) is arranged at the front end inside the box body (61), and the right end is rotatably connected to the inner surface of the box body (61). The left end extends out of the moving groove (4) and is rotatably connected to the box body (61). The rotating rod (631) is movably connected to the support frame (2). The special-shaped wheel (632) is sleeved on the right end surface of the rotating rod (631) and is fixedly connected to the rotating rod (631). The travel groove (633) is opened on the right surface of the special-shaped wheel (632) and penetrates through the special-shaped wheel (632). The limit rod (634) is arranged in the travel groove (633) and is movably connected to the travel groove (633). The right end of the limit rod (634) extends out of the travel groove (633) and is fixedly connected to the inner surface of the box body (61).

6. The blood dialysis fluid proportioning and weighing device according to claim 4, characterized in that: A plurality of positioning grooves (7) are opened on the rear surface of the support frame (2). The positioning grooves (7) all penetrate into the moving groove (4) and correspond to the positions of the pin blocks (624).

7. The blood dialysis fluid proportioning and weighing device according to claim 5, wherein: One end of the rotating rod (631) extending out of the moving groove (4) is provided with a knob wheel (8). The knob wheel (8) is fixedly connected to the rotating rod (631).

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