Dry powder cylinder mounting rack and hemodialysis equipment

Abstract

The utility model relates to the technical field of medical equipment, and provides a dry powder cylinder mounting rack and hemodialysis equipment, a movable seat comprises a stand column, a movable seat and a movable seat, the movable base is slidably arranged on the stand column in a sleeving mode, the positioning pin is arranged on the movable base in a telescopic mode and used for being inserted into the positioning hole, and the operation block is movably arranged on the movable base and connected with the positioning pin through a guide structure so as to drive the positioning pin to retract to enable the positioning pin to be disengaged from the positioning hole when the operation block moves under acting force. One end of the elastic acting piece abuts against the movable seat, the other end of the elastic acting piece abuts against the operation block to push the operation block, and the elastic acting piece can drive the operation block to reset and is used for making the operation block abut against the positioning pin to lock the positioning pin at the position where the positioning pin is inserted into the positioning hole. And the moving seat is quickly unlocked and locked through simple operation, so that the position of the moving seat is conveniently moved to mount the dry powder cylinder, and the convenience of mounting and dismounting the dry powder cylinder is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a dry powder cartridge mounting rack and a hemodialysis device. BACKGROUND

[0002] The hemodialysis device needs to use dialysis liquid, and currently, the dialysis powder is usually packaged in a dry powder cartridge, and when used, the dry powder cartridge is mounted on a dialysis machine and then a solution is introduced to configure the dialysis liquid. The mounting rack for fixing the dry powder cartridge on the hemodialysis device is provided with a moving seat, which needs to be movable relative to the device main body to cooperate with the disassembly and assembly of the dry powder cartridge, and has three fixed positions. The moving and fixing operations of the moving seat are simple, which facilitates the disassembly and assembly of the dry powder cartridge. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application aims to provide a dry powder cartridge mounting rack, which can quickly adjust the position of the moving seat for the installation and removal of the dry powder cartridge through simple operation, thereby improving the convenience of the disassembly and assembly of the dry powder cartridge.

[0004] The present application provides a dry powder cartridge mounting rack, which comprises:

[0005] a stand column, a plurality of positioning holes being arranged on the stand column in an axial direction;

[0006] a moving seat, which is slidably sleeved on the stand column;

[0007] a positioning pin, which is telescopically arranged on the moving seat and is used for being inserted into the positioning hole;

[0008] an operation block, which is movably arranged on the moving seat and is connected with the positioning pin through a guide structure, so that when the operation block is moved under the action of force, the positioning pin is retracted to be separated from the positioning hole;

[0009] an elastic member, one end of which abuts against the moving seat and the other end of which abuts against the operation block to push the operation block, the elastic member being used for driving the operation block to reset and locking the positioning pin at the position of being inserted into the positioning hole.

[0010] Optionally, the positioning pin is telescopically displaced in a first direction, the operation block is slidably displaced in a second direction, and the guide structure comprises:

[0011] a guide sliding groove, which is arranged on any one of the positioning pin and the operation block and has an included angle with the first direction and the second direction;

[0012] a guide column, one end of which is fixedly connected with the other one of the positioning pin and the operation block and the other end of which extends into the guide sliding groove, so that the positioning pin is telescopically displaced under the movement of the operation block.

[0013] Optionally, a rolling sleeve is sleeved on the guide column, or a rolling ball is embedded on the outer wall of the guide column.

[0014] Optionally, the positioning pin is provided with a first through groove for embedding a partial segment of the operation block, the first through groove is a through groove in the second direction and a groove bottom wall forms a first abutting plane, the operation block is provided with a second abutting plane for abutting with the first abutting plane, and the guide column and the guide sliding groove are respectively arranged on the first abutting plane and the second abutting plane.

[0015] Optionally, the operation block is provided with a second through groove, the second through groove is a through groove in the first direction and a groove bottom wall forms the second abutting plane, a segment of the positioning pin with the first through groove is embedded in the second through groove, and the operation block and the positioning pin are connected in a mutual embedding mode; a groove side wall of the second through groove on a side close to the elastic member forms a stop surface for abutting with the positioning pin.

[0016] Optionally, the moving seat comprises a base and a first fixed block and a second fixed block arranged on the base and connected in a buckling mode, the first fixed block and the second fixed block are both provided with two concave cavities, and the two concave cavities are correspondingly buckled to be enclosed into a first guide hole for moving the positioning pin and a second guide hole for moving the operation block, respectively.

[0017] Optionally, a rotation stopping structure is arranged between the moving seat and the stand column to prevent the moving seat from rotating along the circumference of the stand column.

[0018] Optionally, the moving seat is provided with a through hole, a sleeve pipe is arranged in the through hole, the stand column penetrates into the sleeve pipe and is connected in a limiting mode through the rotation stopping structure and the sleeve pipe, and the moving seat and the sleeve pipe are both provided with a through hole for the head of the positioning pin to penetrate.

[0019] Optionally, the guide sliding groove is a waist-shaped hole arranged obliquely on either one of the positioning pin and the operation block.

[0020] The application further provides a hemodialysis device, comprising a device main body, and the device main body is provided with the above-mentioned dry powder cartridge mounting rack.

[0021] The dry powder cartridge mounting bracket provided in this application uses an operating block and an elastic element to lock and unlock the movable seat, enabling quick adjustment of the movable seat's position on the column. In the initial state, the elastic element pushes or pulls the operating block, causing it to press the positioning pin against the positioning hole on the column, preventing the pin from moving and thus fixing the movable seat to the column. When the operating block is pressed or pulled, it shifts, moving the positioning pin along with it, causing the pin to retract and disengage from the positioning hole, allowing the movable seat to move on the column to adjust its position. Thus, the movable seat can be unlocked and its position adjusted with a simple pressing or pulling action. After releasing the pin, it automatically inserts into the positioning hole when aligned with it, fixing the movable seat in place. The entire process is simple and convenient, facilitating easy movement of the movable seat and convenient assembly / disassembly of the dry powder cartridge. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 A schematic diagram showing the dry powder cartridge mounting bracket provided in the embodiment of this application in a locked state;

[0024] Figure 2 A schematic diagram showing the dry powder cartridge mounting bracket provided in this application embodiment in an unlocked state;

[0025] Figure 3 A cross-sectional schematic diagram of the positioning pin and column provided in the embodiments of this application;

[0026] Figure 4 A cross-sectional schematic diagram of the operating block and elastic action element provided in the embodiments of this application;

[0027] Figure 5 An exploded view of the composition of the movable seat provided in the embodiments of this application.

[0028] exist Figures 1-5 middle:

[0029] 1. Movable base; 11. Base; 12. First fixing block; 13. Second fixing block;

[0030] 2. Locating pin; 21. Guide post; 22. First through groove; 23. Roller sleeve;

[0031] 3. Operating block; 31. Guide groove; 32. Second through groove;

[0032] 4. Elastic action component;

[0033] 5. a post;

[0034] 6. a sleeve. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] The mounting rack for fixing the dry powder cartridge on the hemodialysis device generally comprises a moving seat and a base. When the dry powder cartridge is not installed, the moving seat and the base need to be buckled together. When the dry powder cartridge is installed, the moving seat and the base need to be separated to access the dry powder cartridge therebetween. After the dry powder cartridge is installed on the base, the moving seat needs to be pressed to move to a preset position to compress the dry powder cartridge. Therefore, the moving seat is generally movable, and there are three working points corresponding to the preparation point, the working point and the flushing point.

[0037] Please refer to the drawings Figures 1-5 The embodiments of the present application provide a dry powder cartridge mounting rack. The structure comprises a post 5 and a moving seat 1. The moving seat 1 is connected to the post 5 and can be switched to a fixed position. A plurality of positioning holes are arranged on the post 5 in the axial direction. The number of the positioning holes generally corresponds to the number of the position points required by the moving seat 1, which is generally three, corresponding to the preparation point, the working point and the flushing point.

[0038] In the present application, the moving seat 1 can be conveniently switched and fixed among the three working points. For example, when the moving seat 1 is moved on the post 5 and fixed at the preparation point, it is not necessary to manually hold the moving seat 1. At this time, the distance between the moving seat 1 and the base is greater than the height of the dry powder cartridge. The dry powder cartridge is installed on the base, and then the moving seat 1 is moved to the working point which can cover the top of the dry powder cartridge, that is, the installation of the dry powder cartridge is completed. Liquid can be introduced into the dry powder cartridge for the preparation of dialysis solution. When the dialysis is stopped, the moving seat 1 is moved to the preparation point, and the dry powder cartridge is removed. Then the moving seat 1 is moved to the flushing point which is buckled with the base. The pipelines in the moving seat 1 and the base can be flushed for the next use.

[0039] In this application, the movable base 1 is provided with a positioning pin 2, an operating block 3, and an elastic element 4. The movable base 1 is slidably sleeved on the column 5; the positioning pin 2 is telescopically mounted on the movable base 1 and used to insert into the positioning hole; the operating block 3 is movably mounted on the movable base 1 and connected to the positioning pin 2 through a guide structure, so that when moved by pressing, pulling, or pushing forces, it can drive the positioning pin 2 to retract and disengage from the positioning hole; one end of the elastic element 4 abuts against the movable base 1, and the other end abuts against the operating block 3, pushing the operating block 3. The elastic element 4 can drive the operating block 3 to reset and is used to tighten the operating block 3 against the positioning pin 2, locking the positioning pin 2 in the position inserted into the positioning hole. The elastic element 4 can be a compression spring or a tension spring, etc.

[0040] In the initial state, such as Figure 1 As shown, the elastic member 4 pushes against the operating block 3, allowing the operating block 3 to press against the positioning pin 2 (i.e., in the initial state, the operating block 3 and the positioning pin 2 are in contact), pressing the positioning pin 2 against the positioning hole on the column 5, preventing the positioning pin 2 from moving, thereby locking the movable seat 1 onto the column 5. When the operating block 3 moves under the action of force, it will squeeze the elastic member 4 and drive the positioning pin 2 connected to it to retract through the guide structure, causing the positioning pin 2 to disengage from the positioning hole, and the movable seat 1 can then move on the column 5 to adjust its position. When the movable seat 1 leaves its original fixed working point, the force on the operating block 3 can be removed. At this time, the operating block 3 will be driven by the elastic member 4 to move back to its original position, and the positioning pin 2 will be pushed towards the column 5. However, since the positioning hole on the column 5 is only set at the position where the movable seat 1 needs to be fixed, the positioning pin 2 will press against the outer wall of the column 5, without affecting the movement of the movable seat 1. When the movable seat 1 moves to the working point, the operating block 3 and the positioning pin 2, which have been pushed by the elastic member 4, move again. The operating block 3 is completely reset to the initial position, and the positioning pin 2 is automatically inserted into the positioning hole.

[0041] The dry powder cartridge mounting bracket provided in this application uses an operating block 3 and an elastic element 4 to adjust the locking and unlocking of the movable seat 1. The movable seat 1 can be unlocked by a simple action such as pressing or pulling with one hand. After unlocking, the hand can be released immediately without affecting the movement of the movable seat 1. The movable seat 1 will automatically lock when it moves to the working point. The whole process is very simple to operate. It only requires pressing, pulling or pushing the operating block 3 when unlocking, which is conducive to convenient movement of the movable seat 1 and convenient disassembly and assembly of the dry powder cartridge. Moreover, the above locking structure is simple and easy to manufacture.

[0042] The positioning pin 2 extends and retracts along a first direction, while the operating block 3 slides along a second direction. The first and second directions can be perpendicular. The guiding structure includes a guide groove 31 and a guide post 21 respectively disposed on the positioning pin 2 and the operating block 3. The guide groove 31 is disposed on either the positioning pin 2 or the operating block 3, and has an angle with both the first and second directions; for example, it can be an inclined oblong hole. One end of the guide post 21 is fixedly connected to the other of the two, and the other end extends into the guide groove 31. For example, as shown in the attached figure, the operating block 3 is disposed along the second direction, the guide groove 31 is an inclined oblong hole on the operating block 3, one end of the guide post 21 is connected to the positioning pin 2, and the other end extends into the guide groove 31.

[0043] like Figure 2 As shown, when the operating block 3 moves under the action of force, the guide post 21 will move in the guide groove 31, thereby driving the positioning pin 2 to move. And due to the direction limitation of the guide groove 31, the positioning pin 2 can only produce a retraction displacement in the first direction.

[0044] The elastic element 4 can be either a tension spring or a compression spring. If the elastic element 4 is a compression spring, it can be located inside the movable seat 1, pushing the operating block 3 outwards. In the second direction, gradually moving away from the elastic element 4, the guide groove 31 gradually extends away from the elastic element 4 and away from the column 5, such as... Figure 1 As shown, with Figure 1 In terms of orientation, the guide groove 31 is inclined from the lower left to the upper right. When unlocking is required, pressing the operating block 3 will move the positioning pin 2 away from the column 5 and disengage it from the positioning hole. If the elastic member 4 is a tension spring, when it is located inside the moving base 1, it is used to pull the operating block 3 into the interior of the moving base 1. In the second direction, and gradually away from the elastic member 4, the upward guide groove 31 gradually extends away from the elastic member 4 and closer to the column 5. Figure 1 In terms of orientation, guide groove 31 is Figure 1 The center should be tilted from the upper left to the lower right. When unlocking is required, pull the operating block 3 outward, which will move the positioning pin 2 away from the column 5 and disengage it from the positioning hole.

[0045] In some embodiments, a roller sleeve 23 is fitted onto the guide post 21, or balls are embedded in the outer wall of the guide post 21. This arrangement can reduce the friction between the guide post 21 and the guide groove 31, allowing the operating block 3 and the positioning pin 2 to move smoothly.

[0046] The positioning pin 2 is provided with a first abutting plane, and the operation block 3 is provided with a second abutting plane, the first abutting plane and the second abutting plane are in parallel or substantially in parallel, and the guide column 21 and the guide sliding groove 31 are arranged on the first abutting plane and the second abutting plane respectively. In this way, the smooth movement of the positioning pin 2 and the operation block 3 can be ensured. For example, the positioning pin 2 is provided with a first through groove 22 for embedding a partial segment of the operation block 3, the first through groove 22 is in the form of a through groove in the second direction, and the groove bottom wall forms the first abutting plane.

[0047] Further, the operation block 3 can be provided with a second through groove 32, the second through groove 32 is in the form of a through groove in the first direction, and the groove bottom wall forms the second abutting plane, the segment of the positioning pin 2 with the first through groove 22 is embedded in the second through groove 32, and the operation block 3 and the positioning pin 2 are connected in a mutually embedded manner. At the same time, the groove side wall of the second through groove 32 close to the elastic member 4 forms a stop surface for abutting against the positioning pin 2. In this way, the operation block 3 can be prevented from being detached from the moving base 1, and the limiting constraint on the operation block 3 is strengthened.

[0048] The operation block 3 can be a strip-shaped block with a surface having the first abutting plane, or the operation block 3 can be a column body provided with the second through groove 32. The end portion of the operation block 3 is provided with a pressing boss, and the pressing surface of the pressing boss can be a plane or an arc surface. The operation block 3 forms a button structure, which is more convenient to press.

[0049] The moving base 1 is provided with a sliding groove for embedding and displacing the positioning pin 2 and a sliding groove for displacing the operation block 3, and the two sliding grooves can both be guide grooves or both be guide holes. For example, the moving base 1 is provided with a first guide hole for moving the positioning pin 2 and a second guide hole for displacing the operation block 3. Specifically, the moving base 1 includes a base 11 and a first fixed block 12 and a second fixed block 13 arranged on the base 11 and connected in a buckling manner, and the first fixed block 12 and the second fixed block 13 are both provided with two cavities, and the two cavities are buckled to form the first guide hole for moving the positioning pin 2 and the second guide hole for displacing the operation block 3, respectively.

[0050] The moving base 1 is sleeved on the stand column 5 and can move along the axial direction of the stand column 5. In order to prevent the moving base 1 from rotating along the circumferential direction of the stand column 5, a rotation stopping structure is arranged between the moving base 1 and the stand column 5. Further, in order to enable the moving base to be circumferentially limited and smoothly displace along the axial direction of the stand column 5, in some embodiments, as shown in Figure 3 and Figure 5 the moving base 1 is provided with a through hole, the through hole is provided with a sleeve 6, the stand column 5 penetrates into the sleeve 6 and is connected in a limiting manner through the rotation stopping structure and the sleeve 6, and the moving base 1 and the sleeve 6 are provided with through holes for the head portion of the positioning pin 2 to penetrate.

[0051] Specifically, the rotation-stopping structure can be a spline structure, such as a plurality of keys arranged circumferentially on the inner wall of the sleeve 6, and a key groove arranged correspondingly on the column 5. Of course, the rotation-stopping structure can also be a protrusion and a groove arranged on the sleeve 6 and the column 5 respectively.

[0052] Embodiments of the present application also provide a hemodialysis device, which comprises a device main body, and the device main body is provided with the dry powder cartridge mounting rack as described in any one of the above embodiments. The hemodialysis device has the beneficial effects described in the above embodiments, which will not be repeated here.

[0053] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, advantages, effects and the like mentioned in the present application are only examples and are not limiting, and these advantages, advantages, effects and the like cannot be considered as the must-have of each embodiment of the present application. In addition, the above specific details are only for the purpose of example and for the purpose of understanding, and are not limiting, and the above details do not limit the present application to the must-use of the above specific details to realize.

[0054] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagram. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any way. Words such as "include", "contain", "have" and the like are open-ended words, which mean "include but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0055] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombination should be considered as equivalent solutions of the present application.

[0056] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0057] It should be understood that the limiting words "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for more clearly explaining the technical solutions, and cannot be used to limit the protection scope of the present application.

[0058] The above description is given for the purpose of illustration and description. Furthermore, this description does not intend to limit the embodiments of the present application to the forms disclosed herein. Although several example aspects and embodiments have been discussed above, those of ordinary skill in the art will appreciate a variety of modifications, alternatives, permutations, additions, and sub-combinations of the described aspects and embodiments.

Claims

1. A dry powder cartridge mount, characterized by, The utility model provides a positioning device, which comprises: a vertical column (5) provided with a plurality of positioning holes arranged in an axial direction; a moving seat (1) slidably sleeved on the vertical column (5); a positioning pin (2) telescopically arranged on the moving seat (1) and used for being inserted into the positioning hole; an operating block (3) movably arranged on the moving seat (1) and connected with the positioning pin (2) through a guide structure, so that the positioning pin (2) is retracted to be separated from the positioning hole when the operating block (3) is moved under the action of force; an elastic member (4) abutting against one end of the moving seat (1) and the other end of the operating block (3) to push the operating block (3), the elastic member (4) being used for driving the operating block (3) to reset and locking the positioning pin (2) at the position of being inserted into the positioning hole by abutting against the operating block (3) and the positioning pin (2).

2. The dry powder cartridge mount of claim 1, wherein, The positioning pin (2) is telescopically displaced in a first direction, the operating block (3) is slidably displaced in a second direction, and the guide structure comprises: a guide chute (31) arranged on any one of the positioning pin (2) and the operating block (3) and having an included angle with the first direction and the second direction; a guide column (21) fixedly connected with the other one of the positioning pin (2) and the operating block (3) at one end and extending into the guide chute (31) at the other end, so as to drive the positioning pin (2) to telescopically displace under the movement of the operating block (3).

3. The dry powder cartridge mount of claim 2, wherein, A rolling sleeve (23) is sleeved on the guide column (21), or a rolling ball is embedded on the outer wall of the guide column (21).

4. The dry powder cartridge mount of claim 2, wherein, The positioning pin (2) is provided with a first through groove (22) for embedding a local segment of the operating block (3), the first through groove (22) is a through groove in the second direction and a first abutting plane is formed on the groove bottom wall, the operating block (3) is provided with a second abutting plane abutting against the first abutting plane, and the guide column (21) and the guide chute (31) are arranged on the first abutting plane and the second abutting plane, respectively.

5. The dry powder cartridge mount of claim 4, wherein, The operating block (3) is provided with a second through groove (32), the second through groove (32) is a through groove in the first direction and the second abutting plane is formed on the groove bottom wall, a segment of the positioning pin (2) with the first through groove (22) is embedded in the second through groove (32), and the operating block (3) and the positioning pin (2) are connected in a mutually embedded manner; a groove side wall of the second through groove (32) on the side close to the elastic member (4) forms a stop surface abutting against the positioning pin (2).

6. The dry powder cartridge mount of any one of claims 1 to 5, wherein, The moving seat (1) comprises a base (11) and a first fixing block (12) and a second fixing block (13) arranged on the base (11) and connected in a buckling manner, two recess cavities are arranged on the first fixing block (12) and the second fixing block (13), respectively, and the two recess cavities are buckled and correspondingly enclosed to form a first guide hole for the movement of the positioning pin (2) and a second guide hole for the displacement of the operating block (3), respectively.

7. The dry powder cartridge mount of any one of claims 1 to 5, wherein, A rotation stopping structure is arranged between the mobile base (1) and the column (5) to prevent the mobile base (1) from rotating circumferentially along the column (5).

8. The dry powder cartridge mount of claim 7, wherein, A through hole is arranged on the mobile base (1), and a sleeve (6) is arranged in the through hole; the column (5) penetrates into the sleeve (6) and is connected through the rotation stopping structure and the sleeve (6); and the mobile base (1) and the sleeve (6) are both provided with through holes through which the head of the positioning pin (2) penetrates.

9. The dry powder cartridge mount of claim 2, wherein, The guide sliding groove (31) is a waist-shaped hole obliquely arranged on either the positioning pin (2) or the operation block (3).

10. A hemodialysis apparatus, characterized by, The device comprises a device body, and the device body is provided with the dry powder cartridge mounting rack according to any one of claims 1-9.

Images