Dry powder barrel

Abstract

The dry powder barrel comprises a barrel body, a first connector, a second connector and a first filter screen, the barrel body comprises a first part, a second part and a third part which are sequentially connected to define a cavity, the first part comprises a first connector end and a first matching end, and the first connector is connected with the first connector end; the first part comprises a first interface end and a first matching end, the first interface end and the first matching end are connected through a first outer wall, the maximum included angle formed by the first outer wall towards the first interface end is alpha, the first interface end is provided with a first connecting port, and the first connector is communicated with the cavity through the first connecting port; the second connector end and the second matching end are connected through a second outer wall, the maximum included angle formed by the second outer wall towards the second connector end is beta, the second connector end is provided with a second connector, the second connector is communicated with the cavity through the second connector, the first filter screen is arranged on the second connector, beta is smaller than alpha, and alpha is smaller than or equal to 160 degrees.

Description

TECHNICAL FIELD

[0001] The utility model relates to dialysis equipment accessory technical field, especially, a dry powder barrel. BACKGROUND

[0002] The dry powder container installed on the dialysis equipment for online preparation of A liquid or B liquid can be divided into a dry powder barrel and a dry powder bag, the A concentrated liquid contains sodium chloride (NaCl), potassium chloride (KCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), glacial acetic acid (CH3COOH) or citric acid (also known as citric acid), and the B concentrated liquid only contains sodium bicarbonate (NaHCO3). At present, when the dry powder barrel is used for online liquid preparation, the gas is not easy to discharge at the top of the dry powder barrel. In addition, when the A liquid is prepared, the solvent enters from the bottom of the dry powder barrel, and the top overflows, which is easy to carry the incompletely dissolved dry powder upward into the pipeline, causing the dry powder to accumulate in the dead angle of the pipeline. SUMMARY

[0003] The utility model solves the technical problems that the current dry powder barrel is not easy to discharge gas and the dry powder is easy to carry into the pipeline when preparing liquid.

[0004] In order to solve the above technical problems, the utility model provides a dry powder barrel, including the barrel body, first joint, second joint and first filter screen, the barrel body includes first part, second part and third part, the first part, second part and third part are connected in turn and surround and form the cavity, the first part includes first interface end and first cooperation end, the first joint is connected with the first interface end, the first interface end and the first cooperation end are connected through the first outer wall, the maximum included angle that the first outer wall forms towards the first interface end is alpha, the first interface end has first connecting port, the first joint communicates with the cavity through the first connecting port, the third part includes second interface end and second cooperation end, the second joint is connected with the second interface end, the second interface end and the second cooperation end are connected through the second outer wall, the maximum included angle that the second outer wall forms towards the second interface end is beta, the second interface end has second connecting port, the second joint communicates with the cavity through the second connecting port, the first filter screen is arranged in the second joint, wherein beta < alpha, alpha <= 160 DEG.

[0005] Further, 120 DEG <= alpha <= 160 DEG.

[0006] Further, 60 DEG <= beta <= 90 DEG.

[0007] Further, the cross section of the second part is in the shape of a waist.

[0008] Further, a length of the cross section of the second part is x, and a width of the cross section of the second part is y, wherein 1.2≤x:y≤2.

[0009] Further, a second filter screen is further included, and the second filter screen is arranged at the first joint.

[0010] Further, the barrel further comprises a sealing plug, the first outer wall has a third opening, and the sealing plug is detachably arranged at the third opening.

[0011] Further, the first joint, the second joint and the barrel are detachably connected.

[0012] Further, the first joint, the second joint and the barrel are threadedly connected.

[0013] Further, the second part is provided with a group of reinforcing ribs on the outer periphery.

[0014] Compared with the prior art, the dry powder barrel has the beneficial effects that:

[0015] The first outer wall is formed with an included angle towards the first interface end, and the maximum included angle a is less than or equal to 160°, so that when the dry powder barrel is connected to a liquid preparation device, the gas is first gathered at the first connecting port and then discharged through the first joint, and after the gas is discharged, the liquid in which the dry powder is dissolved enters the pipeline through the first joint from the first connecting port, the larger dry powder particles sink in the barrel due to gravity, and the small and light dry powder particles are dissolved during the upward movement with the water flow, so that the amount of dry powder carried by the liquid discharged from the first joint into the pipeline is minimized, and the particle size is also minimized, thereby avoiding the accumulation of dry powder in the dead angle of the pipeline to the greatest extent; in addition, by limiting β BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the dry powder barrel provided by the embodiment of the present application;

[0017] Figure 2 is a front view of the dry powder barrel provided by the embodiment of the present application;

[0018] Figure 3 is a sectional view along the A-A direction of the dry powder barrel provided by the embodiment of the present application; Figure 2

[0019] ​In the diagram, 1 is the barrel body; 11 is the first part; 111 is the first interface end; 112 is the first mating end; 113 is the first outer wall; 12 is the second part; 13 is the third part; 131 is the second interface end; 132 is the second mating end; 133 is the second outer wall; 2 is the first connector; 3 is the second connector; 4 is the first filter screen; 5 is the reinforcing rib group; 51 is the first reinforcing rib ring; 52 is the second reinforcing rib ring; 53 is the first reinforcing rib; 54 is the second reinforcing rib. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] like Figures 1 to 3 As shown, this utility model provides a dry powder container, including a container body 1, a first connector 2, a second connector 3, and a first filter screen 4. The container body 1 includes a first part 11, a second part 12, and a third part 13, which are connected sequentially and enclose a cavity. The first part 11 includes a first interface end 111 and a first mating end 112. The first connector 2 is connected to the first interface end 111. The first interface end 111 and the first mating end 112 are connected by a first outer wall 113. The maximum included angle formed by the first outer wall 113 toward the first interface end 111 is α. The first interface end 111 has a first connecting... The interface includes a first connector 2 connected to the cavity via a first connection port. The third part 13 includes a second interface end 131 and a second mating end 132. The second connector 3 is connected to the second interface end 131. The second interface end 131 and the second mating end 132 are connected via a second outer wall 133. The maximum included angle formed by the second outer wall 133 toward the second interface end 131 is β. The second interface end 131 has a second connection port. The second connector 3 is connected to the cavity via the second connection port. A first filter screen 4 is disposed on the second connector 3 to filter out possible large particles and prevent undissolved dry powder particles from accumulating in dead corners of the pipe. β < α, α ≤ 160°.

[0022] Based on the above structure, the first outer wall is formed with an included angle towards the first interface end, and the maximum included angle a≤160°, so that when the dry powder barrel is online, the gas is first gathered to the first connecting port, and then discharged through the first joint. After the gas is discharged, the liquid dissolved with the dry powder enters the pipeline through the first joint. The larger dry powder particles sink in the barrel due to gravity, and the small and light dry powder particles are dissolved during the upward movement with the water flow. The liquid discharged from the first joint carries the least amount of dry powder and the smallest particle size, which maximizes the prevention of dry powder accumulation in the dead angle of the pipeline. In addition, by limiting β

[0023] It should be noted that the first part 11 and the second part 12 form an included angle transition, and the second part 12 and the third part 13 form an included angle transition, which avoids the formation of steps at their connection, resulting in an increase in occupied space.

[0024] Further, 120°≤a≤160°. When a≤160°, it is ensured that the gas is easily discharged and the amount of dry powder carried is small. At the same time, a≥120° is limited, so that the volume of the dry powder barrel can be as large as possible under the condition that the height of the dry powder barrel is the same, that is, the liquid preparation space is increased, so that the dry powder can be more fully and efficiently dissolved. It should be noted that if the top of the dry powder barrel is flat or the included angle a is too large, although the volume of the dry powder barrel is larger under the condition that the height of the dry powder barrel is the same, the gas is easily retained at other parts of the top of the dry powder barrel, and it is more likely to carry the incompletely dissolved dry powder upward into the pipeline. If the included angle a is too small, the top will be too narrow, which cannot guarantee sufficient liquid preparation space.

[0025] Further, 60°≤β≤90°, that is, the bottom of the dry powder barrel is relatively steep, which can reduce the dead angle area of the bottom of the dry powder barrel, avoid the accumulation of dry powder in these areas, and help the dry powder to naturally concentrate to the bottom of the barrel under the action of gravity, reduce the residue of dry powder on the barrel wall, and ensure that the dry powder can enter the dissolution system more uniformly.

[0026] Further, the cross section of the second part 12 is in the shape of a waist, and when installed to the dialysis equipment, the length direction of the second part is parallel to the side of the dialysis equipment, and the width direction of the second part is perpendicular to the side of the dialysis equipment. The cross-sectional structure in the shape of a waist makes the dry powder barrel neither occupy too wide space on the side of the dialysis equipment, nor increase the volume of the dry powder barrel by increasing the length of the second part, thereby increasing the online liquid preparation space. For example, Figure 2As shown, when the cross section of the second part 12 is in a waist shape, the included angle a is the included angle formed on both sides of the first outer wall 113 along the length direction of the second part 12, and the included angle β is the included angle formed on both sides of the second outer wall 133 along the length direction of the second part 12.

[0027] Further, the length of the cross section of the second part 12 is x, and the width of the cross section of the second part 12 is y, wherein 1.2≤x:y≤2, according to the above ratio requirement, the volume of the dry powder barrel can be increased, that is, the liquid preparation space can be increased by lengthening the length of the cross section and appropriately controlling the width.

[0028] Further, a second filter screen (not shown in the figure) is further included, which is arranged in the first connector 2, and can effectively filter out larger particles of dry powder, so as to avoid the case that the unsolved large-particle dry powder may be accumulated in the dead angle of the pipeline if it enters the subsequent dissolving system. In addition, by filtering out the large-particle dry powder, it can be ensured that the particle size of the dry powder entering the dissolving system is more uniform, thereby improving the quality and consistency of the final prepared solution. It should be noted that whether the second filter screen is arranged or not is determined according to the material to be loaded, that is, the second filter screen needs to be arranged when A powder is used to prepare A liquid, and the second filter screen does not need to be arranged when B powder is used to prepare B liquid.

[0029] Further, the barrel body 1 further includes a plugging plug (not shown in the figure), the first outer wall 113 has a third opening, and the plugging plug is detachably installed in the third opening. The third opening is used for filling the dry powder. It should be noted that the third opening of the present embodiment needs to be kept at a distance from the first interface end 111, and cannot interfere with the installation of the end of the dry powder barrel and the equipment support. In addition, the dry powder barrel provided with the plugging plug can be reused after sterilization, and the plugging plug can be opened to fill the dry powder into the barrel.

[0030] Further, the first connector 2 and the second connector 3 are detachably connected with the barrel body 1, so that the barrel body can be formed by a blow molding process and can have better mechanical properties.

[0031] Further, the first connector 2 and the second connector 3 are threadedly connected with the barrel body 1, so as to ensure that the dry powder barrel has good air tightness.

[0032] Further, the second part 12 is provided with a reinforcing rib group 5 on the outer circumferential side, which can disperse and absorb external applied force, so as to enhance the structural strength of the dry powder barrel, so that the dry powder barrel is more solid when bearing external pressure or internal dry powder pressure, and the risk of deformation and damage is reduced.

[0033] Further, the reinforcing rib group 5 includes a first reinforcing rib ring 51, a second reinforcing rib ring 52, and a plurality of first reinforcing ribs 53. The first reinforcing rib ring 51 and the second reinforcing rib ring 52 are arranged in the height direction of the second part 12, forming a multi-layer reinforcing structure, which enhances the compression resistance of the dry powder barrel in the height direction, prevents deformation caused by external pressure or internal dry powder pressure, and the plurality of first reinforcing ribs 53 are arranged in the outer wall of the second part 12 around the axis of the second part 12, forming a transverse reinforcing structure to disperse and absorb transversely applied force, further enhancing the structural strength of the dry powder barrel, and the two ends of the first reinforcing rib 53 are respectively connected with the first reinforcing rib ring 51 and the second reinforcing rib ring 52, forming a three-dimensional support structure that can effectively prevent the dry powder barrel from deforming locally during use, ensuring the stability and integrity of its shape.

[0034] The combination of the multi-layer reinforcing and transverse reinforcing of the present embodiment enhances the structural strength of the dry powder barrel, making it more solid when subjected to external pressure or internal dry powder pressure, reducing the risk of deformation and damage.

[0035] Further, the reinforcing rib group 5 also includes a plurality of second reinforcing ribs 54, which are arranged in the outer wall of the second part 12 around the axis of the second part 12, further enhancing the structural strength of the dry powder barrel in the transverse direction, and one end of the second reinforcing rib 54 is connected with the second reinforcing rib ring 52, and the other end is arranged in the direction of the third part 13, forming a three-dimensional support structure that can effectively prevent the dry powder barrel from deforming locally during use, ensuring the stability and integrity of its shape, and the end of the second reinforcing rib 54 towards the third part 13 has a gap with the end of the second part 12 close to the third part 13, and the second reinforcing rib 54 is arranged in a staggered manner with the first reinforcing rib 53, so that the dry powder barrel can bear force uniformly in all directions, reducing the possibility of local stress concentration, further improving the deformation resistance.

[0036] The present embodiment further enhances the structural strength and deformation resistance of the dry powder barrel by arranging the second reinforcing rib 54, and through the design of multi-directional reinforcement and three-dimensional support, it ensures that the dry powder barrel can withstand greater external force in all directions.

[0037] In conclusion, the utility model discloses a kind of dry powder barrels, it is formed with the first outer wall of included angle towards first interface end, and maximum included angle α≤160 °, to when dry powder barrel on-line solution, it is convenient for gas to gather to first connecting port first, discharge through first joint, after gas exhaust, liquid that dissolved dry powder enters pipeline from first connecting port through first joint, larger dry powder particle sinks in barrel due to gravity, and small and light dry powder particle dissolves in the process of moving up along water flow, ensure that the amount of dry powder carried by liquid that is discharged from first joint into pipeline is minimum and particle size is minimum, maximum degree avoids dry powder to enter pipeline dead angle accumulation;In addition, by limiting β < α, smaller included angle β helps to guide dry powder to concentrate to barrel bottom, and there is no dead angle in the bottom of barrel, so that dry powder dissolves without residue, improve the quality of prepared solution.

[0038] The above is only preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the prior art, without departing from the technical principle of the utility model, can make a number of improvements and substitutions, these improvements and substitutions also should be considered as the protection scope of the utility model.

Claims

1. A dry powder cartridge, characterized by, The bucket body comprises a first part, a second part and a third part, which are connected in sequence and enclose a cavity, the first part comprises a first interface end and a first matching end, the first joint is connected with the first interface end, the first interface end and the first matching end are connected by a first outer wall, the maximum included angle formed by the first outer wall towards the first interface end is α, the first interface end has a first connecting port, the first joint is communicated with the cavity through the first connecting port, the third part comprises a second interface end and a second matching end, the second joint is connected with the second interface end, the second interface end and the second matching end are connected by a second outer wall, the maximum included angle formed by the second outer wall towards the second interface end is β, the second interface end has a second connecting port, the second joint is communicated with the cavity through the second connecting port, the first filter screen is arranged in the second joint, wherein β < α, and α ≤ 160°.

2. The dry powder barrel of claim 1, wherein, 120°≤α≤160°。 3. The dry powder barrel of claim 1, wherein, 60°≤β≤90°。 4. The dry powder barrel of claim 1, wherein, The cross section of the second part is in a waist shape.

5. The dry powder barrel of claim 4, wherein, The length of the cross section of the second part is x, and the width of the cross section of the second part is y, wherein 1.2 ≤ x:y ≤ 2.

6. The dry powder barrel of claim 1, wherein, The second filter screen is further arranged in the first joint.

7. The dry powder barrel of claim 1, wherein, The first outer wall has a third opening, and the blocking plug is sealingly installed in the third opening.

8. The dry powder barrel of claim 1, wherein, The first joint, the second joint and the bucket body are detachably connected.

9. The dry powder barrel of claim 8, wherein, The first joint, the second joint and the bucket body are threadedly connected.

10. The dry powder barrel of claim 1, wherein, The second part is provided with a reinforcing rib group on the outer periphery side.

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