Dry powder cylinder support

Abstract

A dry powder cylinder support comprises a support body, the support body is provided with a sliding frame and a lower fixing frame, the sliding frame and the lower fixing frame are used for clamping a dry powder cylinder, the sliding frame is arranged on the support body in an up-down moving mode, and the lower fixing frame is fixed to the support body and located below the sliding frame; the sliding frame is provided with an upper sealing piece which is in sealing fit with a liquid outlet of the dry powder cylinder, and the upper sealing piece is provided with a first rubber breaking knife which is used for puncturing the sealant at the liquid outlet; the lower fixing frame is provided with a lower sealing piece matched with a liquid inlet of the dry powder cylinder in a sealing mode, and the lower sealing piece is provided with a second rubber breaking knife used for puncturing the sealant at the liquid inlet. According to the utility model, the rubber breaking knife is arranged on the sealing element which is in sealing fit with the liquid outlet / liquid inlet of the dry powder cylinder, and when the dry powder cylinder is mounted on the bracket, the rubber breaking knife can automatically pierce the sealant, so that an experimenter does not need to tear the sealant in advance, the convenience is improved, the dry powder can be prevented from being polluted, and the storage safety of the dry powder is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary equipment, and in particular relates to a dry powder cartridge support for dialysis. Background Art

[0002] During the process of hemodialysis treatment through hemodialysis equipment, it is necessary to continuously access the dialysate. The hemodialysis equipment will prepare the dialysate online. The dialysate is a mixture of reverse osmosis water, A concentrate, and B concentrate in different proportions. Among them, the concentrate is prepared by mixing dry powder and dialysis water. Dry powder is generally stored in a dry powder cylinder, and the upper end of the dry powder cylinder is provided with a liquid outlet and the lower end is provided with a liquid inlet. When in use, the dry powder cylinder is installed on the bracket of the hemodialysis equipment, and dialysis water is added to the dry powder cylinder from the liquid inlet to rinse out the dry powder in the dry powder cylinder. The dialysis water and dry powder are evenly mixed to realize the real-time preparation of dialysis B concentrate for hemodialysis treatment.

[0003] The liquid outlet and liquid inlet of the dry powder cartridge are sealed with sealant to facilitate transportation and storage and prevent the dry powder from being contaminated. When using a dry powder cartridge to prepare a concentrated solution, it is necessary to tear off the sealant at the liquid outlet and liquid inlet, and then install the dry powder cartridge on the bracket to prepare the dialysis concentrate online. However, this process of manually tearing off the sealant not only brings great inconvenience to the hemodialysis operation of medical staff and increases the complexity of the hemodialysis operation, but also in the process of tearing off the sealant, the dry powder in the dry powder cartridge is easily spilled, which makes the dry powder at risk of contamination and reduces the preparation quality of the hemodialysis concentrate. Utility Model Content

[0004] The utility model aims to provide a dry powder cartridge support which can automatically puncture the sealant, thereby facilitating the use of the dry powder cartridge and reducing the risk of contamination of the dry powder in the dry powder cartridge.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dry powder cartridge holder comprises: a frame body, on which a sliding frame and a lower fixed frame for clamping the dry powder cartridge are provided, the sliding frame being movably arranged on the frame body up and down, the lower fixed frame being fixed to the frame body and being located below the sliding frame; the sliding frame being provided with an upper sealing member sealingly matched with a liquid outlet of the dry powder cartridge, the upper sealing member being provided with a first glue-breaking knife for puncturing the sealant at the liquid outlet; the lower fixed frame being provided with a lower sealing member sealingly matched with a liquid inlet of the dry powder cartridge, the lower sealing member being provided with a second glue-breaking knife for puncturing the sealant at the liquid inlet.

[0007] It can be known from the above technical scheme that the utility model provides glue breaking knives in the seals of the sliding frame and the lower fixed frame respectively. When the dry powder cylinder is installed on the sliding frame and the lower fixed frame and the liquid outlet / liquid inlet are respectively sealed with the seals, the glue breaking knife at the seal can automatically puncture the sealant at the liquid outlet / liquid inlet of the dry powder cylinder, thereby realizing automatic opening of the liquid outlet / liquid inlet, without the need for the user to manually tear off the sealant in advance, thereby simplifying the installation steps of the dry powder cylinder and improving the convenience of operation. It can also avoid the possibility that the dry powder in the dry powder cylinder may be contaminated by bacteria and impurities due to premature tearing of the sealant, thereby improving the safety of dry powder storage in the dry powder cylinder, thereby being able to prepare higher quality dialysis concentrate and making hemodialysis treatment have higher operational safety.

[0008] Optionally, the upper seal includes an upper seal body, an upper seal cover that closes an opening at one end of the upper seal body, and a first conveying tube arranged on the upper seal cover. The first glue breaking knife is arranged in the upper seal body, and the first glue breaking knife includes a knife seat and a blade arranged on the knife seat.

[0009] Optionally, the upper seal further includes a first buffer spring, one end of which is connected to the knife seat, and the other end of which is disposed in the upper seal body or in the upper sealing cover.

[0010] Optionally, a sealing ring is provided at the mating opening of the upper sealing body that cooperates with the liquid outlet; and / or, at least one sealing ring is provided between the inner wall of the upper sealing body and the outer wall of the knife seat; and / or, a sealing ring is provided between the upper sealing body and the upper sealing cover.

[0011] Optionally, the lower seal includes a lower seal body, a lower seal cover closing an opening at one end of the lower seal body, and a second delivery pipe arranged on the lower seal cover; the second glue breaking knife is arranged in the lower seal body, and the second glue breaking knife includes a knife seat and a blade arranged on the knife seat.

[0012] Optionally, the lower seal also includes a second buffer spring, one end of which is connected to the knife seat, and the other end of which is arranged in the lower seal body or in the lower sealing cover.

[0013] The glue breaker adopts a spring knife structure with a buffer spring. The buffer spring not only provides a buffer for the blade when the blade pierces the sealant, preventing the blade from damaging the end wall structure of the liquid outlet / liquid inlet, and plays a certain protective role on the liquid outlet / liquid inlet of the dry powder cylinder, but also the buffer spring can make the knife seat close to the inner wall of the seal when there is no external force (when the dry powder cylinder is not installed), playing a certain auxiliary sealing role.

[0014] Optionally, at least one sealing ring is provided between the inner wall of the lower sealing body and the outer wall of the knife seat.

[0015] Optionally, the frame body includes a main rod; the sliding frame also includes a sub-slide, a sleeve and a locking screw arranged in the sliding frame; the sub-slide is connected to the sliding frame, and the sub-slide is provided with a sleeve mounting hole and a screw hole, the axis of the sleeve mounting hole is perpendicular to the axis of the screw hole, and the screw hole partially passes through the sleeve mounting hole; the sleeve is arranged in the sleeve mounting hole, and a notch is provided on the outer peripheral wall of the sleeve, and the main rod passes through the sleeve; the locking screw can It moves along its own axis and penetrates into the screw hole, and one end extends out of the slide, and when the locking screw passes through the screw hole, part of the locking screw passes through the notch; the outer peripheral wall of the locking screw is formed with a locking bevel, and the extension direction of the locking bevel intersects with the axis of the locking screw, the locking bevel and the main rod are arranged opposite to each other, and the part of the locking screw passing through the notch is in contact with the main rod, and the locking bevel gradually rises from the first end to the second end of the locking screw.

[0016] The sliding frame is locked in position by the cooperation of a locking screw with a locking bevel and a sleeve with a notch. The sliding frame can be locked or unlocked by pulling out or pressing the locking screw, which is convenient for adjusting the upper and lower positions of the sliding frame. The operation is simple. When installing the dry powder cartridge, first install the dry powder cartridge on the lower fixed frame, and then move the sliding frame to a suitable position, so that the dry powder cartridge can be clamped very stably, which improves the convenience of installing the dry powder cartridge on the bracket. At the same time, dry powder cartridges of different sizes and models can be stably installed by adjusting the position of the sliding frame, which improves the compatibility and application range of the dry powder cartridge bracket.

[0017] Optionally, the frame body also includes an auxiliary guide rod parallel to the main guide rod, the bottoms of the main guide rod and the auxiliary guide rod are fixed to the lower fixed frame, the sliding frame passes through the main guide rod and the auxiliary guide rod, and can move up and down along the main guide rod and the auxiliary guide rod.

[0018] The sliding frame is guided to move by the main guide rod and the auxiliary guide rod, so that the installation and movement of the sliding frame are more firm and stable.

[0019] Optionally, a positioning groove is provided on the main guide rod.

[0020] A positioning groove is arranged on the main rod. When the sliding frame moves to the position where the positioning groove is located, the sliding frame can cooperate with the positioning groove to keep the sliding frame at the set position, which is convenient for the user to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of a dry powder cartridge according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the dry powder cartridge bracket according to an embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional view of a dry powder cartridge support according to an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the sliding frame of an embodiment of the utility model;

[0026] Figure 5 It is a cross-sectional view of a sliding frame according to an embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the sealing member in an embodiment of the utility model;

[0028] Figure 7 This is a schematic structural diagram of the sealing member from another angle in an embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the exploded structure of the sealing member in the embodiment of the utility model;

[0030] Fig. 9 It is a cross-sectional view of a fixed mounting frame assembly according to an embodiment of the utility model;

[0031] Fig.10 This is a schematic diagram of the structure of the sealing member in the embodiment of the utility model;

[0032] Fig.11 This is a schematic diagram of the exploded structure of the sealing member according to an embodiment of the present utility model;

[0033] Fig.12 This is a schematic diagram of the structure of the slide seat in the embodiment of the utility model;

[0034] Fig.13 It is a cross-sectional view of a slide seat according to an embodiment of the utility model;

[0035] Fig.14 This is a schematic diagram of the cooperation between the locking screw and the sliding seat sleeve in the embodiment of the utility model;

[0036] Fig.15This is a schematic diagram of the cooperation between the locking screw and the sliding seat sleeve at another angle according to the embodiment of the utility model

[0037] Fig.16 It is a schematic diagram of the cooperation between the sliding seat sleeve and the locking screw when the sliding seat sleeve is assembled in the sliding seat according to an embodiment of the utility model.

[0038] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The utility model is described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the utility model in detail, for the convenience of explanation, the drawings representing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model. It should be noted that the drawings are simplified in form and use non-precise proportions, which are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the utility model. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated; the terms "positive", "negative", "bottom", "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0040] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two elements, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] like Figure 1 , Figure 2 and Figure 3As shown, the dry powder cartridge support of the present embodiment includes a frame 1, on which an upper fixed frame 2, a lower fixed frame 3 and a sliding frame 4 are arranged, and the upper fixed frame 2 and the lower fixed frame 3 are respectively fixed to the frame 1, and are arranged relatively up and down, and the upper fixed frame 2 and the lower fixed frame 3 are immovable. The sliding frame 4 is located between the upper fixed frame 2 and the lower fixed frame 3, and the sliding frame 4 can be moved up and down on the frame 1. The sliding frame 4 and the lower fixed frame 3 are used to install the dry powder cartridge 100, so that the dry powder cartridge 100 is installed on the hemodialysis equipment (not shown) through the dry powder cartridge support. When the dry powder cartridge 100 is installed on the dry powder cartridge support, the liquid outlet 100a of the dry powder cartridge 100 is sealed and connected with the upper seal on the sliding frame 4, and the liquid inlet 100b of the dry powder cartridge 100 is sealed and connected with the lower seal on the lower fixed frame 3, and the dialysis water enters the dry powder cartridge 100 from the liquid inlet 100b, mixes with the dry powder and flows out from the liquid outlet 100a upward.

[0042] The frame 1 of this embodiment includes a main rod 5, which is arranged in the vertical direction and fixed by an upper fixing frame 2 and a lower fixing frame 3. The top of the main rod 5 is connected to the upper fixing frame 2, and the bottom is connected to the lower fixing frame 3. Figure 4 As shown, the sliding frame 4 is provided with a through hole 4a for the main rod 5 to pass through, and the main rod 5 passes through the through hole 4a, and the sliding frame 4 can move up and down along the main rod 5. Optionally, the frame body 1 of this embodiment also includes an auxiliary guide rod 6, which is parallel to the main rod 5. The auxiliary guide rod 6 is also fixed by the upper fixed frame 2 and the lower fixed frame 3. The top of the auxiliary guide rod 6 is connected to the upper fixed frame 2, and the bottom is connected to the lower fixed frame 3. The sliding frame 2 is provided with a slide groove 4b for the auxiliary guide rod 6 to pass through, and the main rod 5 moves up and down through the slide groove 4b. When only the main rod 5 is set, although the main rod 5 can guide the up and down movement of the sliding frame 4, the setting of the sliding frame 4 on the main rod 5 will not be stable enough, and the two guide rods of the auxiliary guide rod 6 and the main rod 5 are used to guide the sliding frame 4 to move, and the cooperation of the auxiliary guide rod 6 and the main rod 5 can provide additional stable support, so that the up and down movement of the sliding frame 4 is more stable and smooth. In other embodiments, the main rod may also be replaced by a guide rail provided on the frame body, and in this case, the through hole on the sliding frame 4 may be replaced by a slide groove matching the guide rail.

[0043] Optionally, a positioning groove 5a is provided on the outer wall of the main rod 5, and the positioning groove 5a is used to position the sliding frame 4. When the sliding frame 4 moves to the position of the positioning groove 5a, the sliding frame 4 will be limited by the positioning groove 5a, so as to be fixed at the position of the positioning groove 5a, so that the sliding frame 4 remains stationary at this position. The number and setting position of the positioning grooves 5a on the main rod 5 can be set accordingly according to needs. In this embodiment, a total of three positioning grooves 5a are set on the main rod 5, two positioning grooves 5a are set on the upper part of the main rod 5, and one positioning groove 5a is set on the lower part of the main rod 5. When a plurality of positioning grooves 5a are set on the main rod 5, the positioning grooves 5a are arranged at intervals along the axial direction of the main rod 5.

[0044] Combination Figure 2 , Figure 3 and Figure 5 The upper seal 7 is arranged on the sliding frame 4, and the upper seal 7 is used to be sealed and connected with the liquid outlet 100a of the dry powder tube 100. When the upper seal 7 and the liquid outlet 100a of the dry powder tube 100 are sealed and matched, the mixed liquid formed by the dialysis water and the dry powder is transported to the hemodialysis equipment through the first delivery pipe of the upper seal 7.

[0045] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the upper seal 7 of the present embodiment includes an upper seal body 7-1, an upper sealing cover 7-2, a first delivery pipe 7-3, a first glue-breaking knife 7-4, a first buffer spring 7-5 and a sealing ring. The upper seal body 7-1 is internally processed with a channel for the mixed liquid to flow through. The first delivery pipe 7-3 is arranged on the upper sealing cover 7-2, and the first delivery pipe 7-3 is connected to the pipeline (not shown) of the hemodialysis equipment. The upper sealing cover 7-2 seals the opening at the upper end of the upper seal body 7-1, and the first glue-breaking knife 7-4 is arranged in the upper seal body 7-1. The first glue-breaking knife 7-4 is used to puncture the sealant at the liquid outlet 100a of the dry powder tube 100. When the liquid outlet 100a and the upper seal 7 are sealed and matched, the first glue-breaking knife 7-4 will puncture the sealant at the liquid outlet 100a, so that the mixed liquid can flow outwards, and there is no need to manually tear off the sealant. The first glue breaking knife 7-4 is arranged in the channel of the upper sealing body 7-1, but will not affect the circulation of the mixed liquid.

[0046] Preferably, in this embodiment, a first buffer spring 7-5 is arranged between the upper sealing cover 7-2 and the first glue breaking knife 7-4. The first buffer spring 7-5 is used to provide a buffering effect for the first glue breaking knife 7-4. When the liquid outlet 100a and the upper sealing member 7 are sealed and matched, the first glue breaking knife 7-4 pierces the sealant at the liquid outlet 100a. At this time, the first buffer spring 7-5 is deformed to provide buffering, so that the first glue breaking knife 7-4 can just pierce the sealant while ensuring that the blade of the first glue breaking knife 7-4 will not cause damage to the end wall at the liquid outlet 100a, thereby protecting the end wall of the liquid outlet 100a.

[0047] The first glue-breaking knife 7-4 of the present embodiment includes a knife seat 7-4a and a blade 7-4b disposed on the knife seat 7-4a, and the blade 7-4b is a stainless steel blade. The outer wall of the knife seat 7-4a is provided with a spring groove 7-1a matched with the first buffer spring 7-5, one end of the first buffer spring 7-5 is arranged in the spring groove 7-1a, and the other end is arranged at the spring fixing portion 7-2a of the upper sealing cover 7-2. Four blades 7-4b arranged at intervals are provided on the knife seat 7-4a of the present embodiment, and the blades 7-4b pierce the sealant of the liquid outlet 100a after the liquid outlet 100a and the upper sealing member 7 are sealed and matched.

[0048] Optionally, in order to ensure the sealing effect of the upper seal 7 on the liquid outlet 100a, four sealing rings are arranged in the upper seal 7 of this embodiment: a first sealing ring 7-6, a second sealing ring 7-7, a third sealing ring 7-8 and a fourth sealing ring 7-9. Among them, the first sealing ring 7-6 is arranged at the matching port of the upper seal body 7-1 that matches the liquid outlet 100a. The second sealing ring 7-7 and the third sealing ring 7-8 are arranged between the upper seal body 7-1 and the knife seat 7-4a, and the second sealing ring 7-7 and the third sealing ring 7-8 are located between the outer wall of the knife seat 7-4a and the inner wall of the channel of the upper seal body 7-1. The second sealing ring 7-7 and the third sealing ring 7-8 are arranged at intervals along the axis of the upper seal body 7-1. The fourth sealing ring 7-9 is arranged between the upper seal body 7-1 and the upper sealing cover 7-2. The sealing ring can ensure that the upper seal 7 always maintains the stability and firmness of the installation during the assembly process with the dry powder cylinder, thereby ensuring the sealing effect.

[0049] like Fig. 9 , Fig.10 and Fig.11 As shown, the lower seal 8 is arranged on the lower fixing frame 3, and the lower seal 3 is used to be sealed and connected with the liquid inlet 100b of the dry powder cartridge 100. After the lower seal 9 and the liquid inlet 100b of the dry powder cartridge 100 are sealed and matched, the dialysis water can enter the dry powder cartridge 100 from the liquid inlet 100b to flush the dry powder in the dry powder cartridge 100 out of the dry powder cartridge.

[0050] The structure of the lower seal 8 is substantially the same as that of the upper seal 7, and the lower seal 8 comprises a lower seal body 8-1, a lower sealing cover 8-2, a second delivery pipe 8-3, a second glue-breaking knife 8-4, a second buffer spring 8-5 and a sealing ring. A channel for dialysis water to flow through is processed inside the lower seal body 8-1, and the second delivery pipe 8-3 is arranged on the lower sealing cover 8-2, and the lower sealing cover 8-2 seals the lower seal body 8-1. The second glue-breaking knife 8-4 is arranged in the lower seal body 8-1, and is used to puncture the sealant at the liquid inlet 100b of the dry powder cartridge 100. The structure of the second glue-breaking knife 8-4 is the same as that of the first glue-breaking knife 7-4. When the liquid inlet 100b and the lower seal 8 are sealed and matched, the second glue-breaking knife 8-4 will puncture the sealant at the liquid inlet 100b, so that the dialysis water can flow into the dry powder cartridge 100, and there is no need to manually tear off the sealant.

[0051] The difference between the lower seal 8 and the upper seal 7 of this embodiment is that the number of sealing rings is different. Two sealing rings are set in the lower seal 8: the fifth sealing ring 8-6 and the sixth sealing ring 8-7. The fifth sealing ring 8-6 and the sixth sealing ring 8-7 are set between the lower seal body 8-1 and the knife seat, and are located between the outer wall of the knife seat and the inner wall of the channel of the lower seal body 8-1. The reason why the lower seal 8 is provided with two fewer sealing rings than the upper seal 7 is that after the dry powder cartridge 100 is installed on the lower fixed frame 3, the weight of the dry powder cartridge 100 itself can make the liquid inlet 100b of the dry powder cartridge 100 pressed against the matching port of the lower seal 8 to achieve a good seal, so there is no need to set a sealing ring separately. Similarly, the dead weight of the dry powder cartridge 100 can also keep the lower seal body 8-1 and the lower sealing cover 8-2 pressed tightly to achieve a good seal, so there is no need to set a sealing ring separately.

[0052] Combination Figure 5 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16Optionally, the sliding frame 4 of this embodiment further includes a sub-slide 4-2, a sleeve 4-3, and a locking screw 4-4. The sub-slide 4-2 of this embodiment is connected to the sliding frame 4 by a threaded fastener. In other embodiments, the sub-slide 4-2 and the sliding frame 4 may also be an integrated structure. The sub-slide 4-2 is provided with a sleeve mounting hole 4-2a and a screw hole 4-2b for the locking screw 4-4 to pass through. The axis of the sleeve mounting hole 4-2a is perpendicular to the axis of the screw hole 4-2b, and the screw hole 4-2b partially passes through the sleeve mounting hole 4-2a. The sleeve 4-3 is disposed in the sleeve mounting hole 4-2a, and the main rod 5 passes through the sleeve 4-3. After the locking screw 4-4 passes through the through hole on the side wall of the sliding frame 4, it enters the screw hole 4-2b. The locking screw 4-4 can be movably arranged in the screw hole 4-2b along its own axis, and one end of the locking screw 4-4 extends out of the sliding frame 4.

[0053] A notch 4-3a is provided on the outer peripheral wall of the sleeve 4-3. When the locking screw 4-4 passes through the screw hole 4-2b on the sub-slide 4-2, it will pass through the notch 4-3a on the sleeve 4-3. When the locking screw 4-4 passes through the notch 4-3a on the sleeve 4-3, the locking screw 4-4 and the main rod 5 come into contact. When the locking screw 4-4 and the main rod 5 come into contact, the friction between the two can prevent the sub-slide 4-2 (slide frame 4) from moving along the main rod 5 at will, thereby locking the position of the sub-slide 4-2 (slide frame 4) on the main rod 5.

[0054] A cut groove is processed on the outer peripheral wall of the locking screw 4-4 of this embodiment, so as to form a locking bevel s on the outer peripheral wall of the locking screw 4-4, and the extension direction of the locking bevel s intersects with the axis of the locking screw 4-4. The locking bevel s and the main rod 5 are arranged opposite to each other and can contact the main rod 5. For the convenience of description, the end of the locking screw 4-4 exposed to the sliding frame 4 is defined as the first end of the locking screw 4-4, and the other end of the locking screw 4-4 is the second end. The first end of the locking screw 4-4 is connected with a nut 4-5, so that the experimenter can press the locking screw 4-4 along the axis of the locking screw 4-4 or pull the locking screw 4-4 outward. The locking bevel s gradually rises from the first end to the second end of the locking screw 4-4 (that is, the locking bevel moves further and further away from the axis of the locking screw). As the locking bevel s rises, the contact area between the locking screw 4-4 and the main rod 5 becomes larger and larger, and the friction between the locking screw 4-4 and the main rod 5 becomes larger and larger, thereby locking the position of the sliding frame 4 on the main rod 5. When the locking screw 4-4 is pressed, the locking screw 4-4 moves in the screw hole 4-2b. During this movement, the contact area between the locking bevel s (locking bolt 4-4) and the main rod 5 gradually decreases, and the friction between the locking screw 4-4 and the main rod 5 decreases, so that the sliding frame 4 can be moved and the position of the sliding frame 4 can be changed to facilitate the installation of the dry powder cartridge or the removal of the dry powder cartridge from the bracket; when the locking screw 4-4 is pulled outward, as the height of the locking bevel s increases, the contact area between the locking bevel s and the main rod 5 increases, and the friction between the locking bevel s (locking screw 4-4) and the main rod 5 increases, so that the position of the sliding frame 4 on the main rod 5 can be locked. The locking screw 4-4 can be a cylindrical structure or a prismatic structure, and the locking bevel s can be a plane or a conical surface.

[0055] When the sliding frame 4 moves to the position of the positioning groove 5a on the main rod 5, the locking screw 4-4 will snap into the positioning groove 5a, thereby fixing the sliding frame 4 at a preset position. Since the sliding frame 4 can move up and down, the position of the sliding frame 4 can be adjusted to accommodate dry powder cylinders of different sizes, thereby improving the versatility of the dry powder cylinder bracket. When installing the dry powder cylinder, the sliding frame 4 is moved to a suitable position, and the dry powder cylinder can be clamped and fixed up and down by the sliding frame 4 and the lower fixing frame 3, thereby realizing the installation of the dry powder cylinder, so as to facilitate the online preparation of the dialysis concentrate.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dry powder cartridge support, comprising: A frame, on which a sliding frame and a lower fixed frame for clamping a dry powder cartridge are arranged, the sliding frame is movably arranged on the frame, and the lower fixed frame is fixed to the frame and is located below the sliding frame; Features: The sliding frame is provided with an upper sealing member that is sealed with the liquid outlet of the dry powder cartridge, and the upper sealing member is provided with a first glue-breaking knife for piercing the sealant at the liquid outlet; The lower fixing frame is provided with a lower sealing member which is in sealing cooperation with the liquid inlet of the dry powder cartridge, and the lower sealing member is provided with a second glue-breaking knife for piercing the sealant at the liquid inlet.

2. The dry powder cartridge holder according to claim 1, characterized in that: The upper seal comprises an upper seal body, an upper seal cover closing an opening at one end of the upper seal body, and a first conveying pipe arranged on the upper seal cover. The first glue breaking knife is arranged in the upper seal body, and the first glue breaking knife comprises a knife seat and a blade arranged on the knife seat.

3. The dry powder cartridge holder according to claim 2, characterized in that: The upper sealing component further comprises a first buffer spring, one end of which is connected to the knife seat, and the other end of which is arranged in the upper sealing component body or in the upper sealing cover.

4. The dry powder cartridge holder according to claim 2, characterized in that: A sealing ring is provided at the matching opening of the upper sealing member body and the matching opening of the liquid outlet; And / or, at least one sealing ring is provided between the inner wall of the upper sealing member body and the outer wall of the knife seat; And / or, a sealing ring is provided between the upper sealing member body and the upper sealing cover.

5. The dry powder cartridge holder according to claim 1, characterized in that: The lower seal includes a lower seal body, a lower seal cover that closes an opening at one end of the lower seal body, and a second delivery pipe arranged on the lower seal cover. The second glue breaking knife is arranged in the lower seal body, and the second glue breaking knife includes a knife seat and a blade arranged on the knife seat.

6. The dry powder cartridge holder according to claim 5, characterized in that: The lower sealing member further comprises a second buffer spring, one end of which is connected to the knife seat, and the other end of which is arranged in the lower sealing member body or in the lower sealing cover.

7. The dry powder cartridge holder according to claim 5, characterized in that: At least one sealing ring is arranged between the inner wall of the lower sealing member body and the outer wall of the knife seat.

8. The dry powder cartridge holder according to claim 1, characterized in that: The frame body includes a main rod; The sliding frame also includes a sub-sliding frame, a sleeve and a locking screw disposed in the sliding frame; The sub-slide is connected to the sliding frame, and a sleeve mounting hole and a screw hole are provided on the sub-slide, the axis of the sleeve mounting hole is perpendicular to the axis of the screw hole, and the screw hole partially passes through the sleeve mounting hole; The sleeve is arranged in the sleeve installation hole, a notch is arranged on the outer peripheral wall of the sleeve, and the main guide rod passes through the sleeve; The locking screw can be moved along its own axis and penetrate into the screw hole, and one end of the locking screw extends out of the slide, and when the locking screw passes through the screw hole, part of the locking screw passes through the notch; A locking bevel is formed on the outer peripheral wall of the locking screw, the extension direction of the locking bevel intersects with the axis of the locking screw, the locking bevel and the main rod are arranged opposite to each other, and the part of the locking screw passing through the notch is in contact with the main rod, and the locking bevel gradually rises from the first end to the second end of the locking screw.

9. The dry powder cartridge holder according to claim 8, characterized in that: The frame body also includes an auxiliary guide rod parallel to the main guide rod, the bottoms of the main guide rod and the auxiliary guide rod are fixed to the lower fixed frame, and the sliding frame passes through the main guide rod and the auxiliary guide rod and can move up and down along the main guide rod and the auxiliary guide rod.

10. The dry powder cartridge holder according to claim 8 or 9, characterized in that: The main guide rod is provided with a positioning groove.

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