Filtering device for piperacillin sodium for injection

Abstract

The utility model discloses a piperacillin sodium filtering device for injection, which belongs to the technical field of medicine preparation and comprises a filtering tank body, a rotating motor is mounted on the top surface of the filtering tank body, a rotating rod is welded on an output shaft of the rotating motor, and two pairs of connecting rods are respectively welded on the side surfaces of the rotating rod. The top faces of the two connecting rods on the upper portion are in sliding friction contact with the filtering tank body, the end faces of the connecting rods are slidably connected with movable blocks through formed inner cavities, the side faces of the movable blocks are fixedly connected with movable rods, the side faces of the movable rods are slidably sleeved with sealing rings, and the side faces of the sealing rings are fixedly connected with the connecting rods in an embedded mode. According to the piperacillin sodium filtering device, piperacillin sodium crystals are prevented from being adhered to the inner wall of the filtering tank body, so that the filtering efficiency of the filtering device on piperacillin sodium is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medicine preparation, in particular to a piperacillin sodium filtering device for injection. Background Art

[0002] Piperacillin sodium is a semi-synthetic penicillin antibiotic with a broad-spectrum antibacterial effect. It exerts its bactericidal effect by inhibiting bacterial cell wall synthesis. After the impurity removal process, piperacillin sodium needs to be separated from the solution by a filtration device. When the existing filtration device is in use, it is very easy for piperacillin sodium crystals to adhere to the inner wall of the tank, reducing the filtration efficiency of the filtration device for piperacillin sodium.

[0003] Example (authorization announcement number is CN115569437A) A piperacillin sodium injection filtering device, comprising: a filtering tank body, a filter press chamber, a liquid collecting chamber and a filter out chamber are arranged inside the filtering tank body, the filter press chamber is located above the liquid collecting chamber and is connected with the liquid collecting chamber, and the upper end of the liquid collecting chamber is connected with the filter out chamber; a first sealing pair of rollers, the roller body is a flexible material, located on one side of the width direction of the lower end of the filter press chamber; a second sealing pair of rollers, the roller body is a flexible material, located on the other side of the width direction of the lower end of the filter press chamber; a driving roller, located at the upper end of the filter out chamber; a filter belt, which is sequentially stretched on the second sealing pair of rollers, the first sealing pair of rollers and the driving roller; wherein the filter press chamber and the liquid collecting chamber are separated by the filter belt. The present invention can ensure that the filter belt is always in a state of high-efficiency filtration, greatly reduce the frequency of cleaning the filter belt, thereby improving the production efficiency of piperacillin sodium for injection, but the device does not take into account that piperacillin sodium crystals are very easy to adhere to the inner wall of the tank body, reducing the filtering efficiency of the filter device on piperacillin sodium. Utility Model Content

[0004] The utility model aims to provide a piperacillin sodium injection filtering device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a piperacillin sodium injection filtering device, comprising a filtering tank body, a rotating motor is installed on the top surface of the filtering tank body, a rotating rod is welded to the output shaft of the rotating motor, two pairs of connecting rods are respectively welded to the sides of the rotating rod, the top surfaces of the two upper connecting rods are in sliding and frictional contact with the filtering tank body, the end surfaces of the connecting rods are slidably connected to a movable block through an opened inner cavity, the side surface of the movable block is fixedly connected to the movable rod, the side surface of the movable rod is slidably sleeved with a sealing ring, the side surface of the sealing ring is embedded and fixedly connected with the connecting rod, scrapers are welded to the end surfaces of the two movable rods, the top surfaces of the two scrapers are slidably connected to the filtering tank body, a side of the movable block away from the movable rod is fixedly connected to a spring, and an end of the spring away from the movable block is welded to the connecting rod.

[0006] Preferably, a feed inlet and a box door are respectively installed on the top surface and the side surface of the filter tank body, and a filter frame is slidably connected to the inner wall of the filter tank body.

[0007] Preferably, a filter screen is fixedly connected to the inner wall of the filter frame, and two rotating disks are abutted against the bottom surface of the filter frame.

[0008] Preferably, a transmission rod is welded on adjacent sides of the two rotating disks, and a rotating block is fixedly connected to one end of the rotating disk away from the transmission rod.

[0009] Preferably, a sealing bearing is interference-fitted on the side of the rotating block, and the outer ring of the sealing bearing is embedded and fixedly connected with the filter tank body.

[0010] Preferably, the side of the left rotating block away from the rotating disk is fixedly connected to the output shaft of the driving motor.

[0011] Preferably, the fixed end of the driving motor is fixed to the outer side wall of the filter tank body, and the bottom surface of the filter tank body is connected to the solution tank.

[0012] Preferably, a discharge port is installed on the side of the solution tank.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The piperacillin sodium filter device for injection facilitates the introduction of piperacillin sodium solution into the interior of a filtering tank body through a provided feed port; a provided rotating motor provides power so that the output shaft of the rotating motor drives the rotating rod to rotate during rotation, thereby driving four connecting rods to rotate with the rotating rod as the center of a circle; under the action of centrifugal force, two scrapers are made to fit against the inner wall of the filtering tank body for scraping during the transmission process, thereby preventing piperacillin sodium crystals in the piperacillin sodium solution from adhering to the inner wall of the filtering tank body, thereby improving the filtering efficiency of the piperacillin sodium by the filtering device; a provided movable block moves along the inner cavity of the connecting rod, thereby fixing the lateral movement stability of the movable rod; a provided spring provides elastic tension, thereby facilitating the two scrapers to knock against the inner wall of the filtering tank body when performing centrifugal movement, thereby further improving the scraping effect of piperacillin sodium.

[0015] The piperacillin sodium filtration device for injection has a filter screen for separating the solution after crystallization from the piperacillin sodium, so as to realize the filtering effect of the filter device on the piperacillin sodium; a filter frame provides support for the filter screen, and the filter frame moves longitudinally along the inner wall of the filter tank body; a driving motor provides power, and the connection provided by the rotating block on the left side facilitates the rotating disk to rotate; the transmission rods and the rotating blocks respectively provided on both sides of the rotating disk are arranged in a staggered manner, so as to facilitate the rotating disk to rotate and move with the rotating block as the center of the circle, and then facilitate the filter frame to move longitudinally through the rotating disk, so as to realize the vibration of the piperacillin sodium on the top of the filter screen, so as to prevent the piperacillin sodium from clogging the filter screen and reduce the filtering efficiency of the filter device on the piperacillin sodium. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a right side cross-sectional view of the filter tank body and the solution tank of the utility model;

[0019] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0020] Figure 4 For the utility model Figure 2 A magnified view of the structure at B in the middle.

[0021] Description of reference numerals:

[0022] In the figure: 1. filter tank body; 2. solution tank; 3. rotating motor; 4. rotating rod; 5. connecting rod; 6. movable block; 7. movable rod; 8. sealing ring; 9. scraper; 10. spring; 11. feed port; 12. discharge port; 13. filter frame; 14. filter screen; 15. rotating disk; 16. transmission rod; 17. rotating block; 18. sealing bearing; 19. driving motor; 20. box door. DETAILED DESCRIPTION

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0024] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0025] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0026] In order to solve the problem that when the piperacillin sodium injection filter device is used, piperacillin sodium crystals are easily adhered to the inner wall of the tank, reducing the filtration efficiency of the filter device for piperacillin sodium, please refer to Figures 1 to 4 The structure of the device body is as follows: a filtering tank body 1, wherein the filtering tank body 1 is arranged to facilitate crystallization filtration of the piperacillin sodium solution after impurity removal. At the same time, the crystallization of piperacillin sodium needs to be in a low temperature state, so that piperacillin sodium is separated from the solution, and the filtering effect of the filtering device on piperacillin sodium is realized. A rotating motor 3 is installed on the top surface of the filtering tank body 1, and the fixed end of the rotating motor 3 is fixed to the top of the filtering tank body 1, and the output shaft of the rotating motor 3 extends into the inside of the filtering tank body 1. A rotating rod 4 is welded to the output shaft of the rotating motor 3, so that the output shaft of the rotating motor 3 drives the rotating rod 4 to rotate synchronously during the rotation transmission process. Two pairs of connecting rods 5 are respectively welded to the sides of the rotating rod 4, and the four connecting rods 5 are in the same horizontal plane in pairs. The top surfaces of the two connecting rods 5 at the top are in sliding friction contact with the filtering tank body 1, so as to improve the structural stability of the device parts. The end surface of the connecting rod 5 is slidably connected with a movable block 6 through the inner cavity opened, so that the movable block 6 moves laterally along the inner cavity of the connecting rod 5, and the side of the movable block 6 is fixedly connected with an movable rod 7.

[0027] Then the moving path of the movable rod 7 is fixed, and a sealing ring 8 is slidably sleeved on the side of the movable rod 7, which is convenient for realizing the relative movement of the sealing ring 8 and the movable rod 7. At the same time, the sealing ring 8 provides a sealing effect to prevent the piperacillin sodium solution from flowing into the inner cavity of the connecting rod 5, further improving the structural stability of the device parts. The side of the sealing ring 8 is embedded and fixedly connected with the connecting rod 5 to realize the position fixation of the sealing ring 8. The end faces of the two movable rods 7 are welded with scrapers 9, which are convenient for making the two scrapers 9 move centrifugally during the transmission process when the rotating rod 4 rotates, so that the scrapers 9 are fitted with the inner wall of the filtering tank body 1, so as to realize the crystallization of piperacillin sodium adhered to the inner wall of the filtering tank body 1. Scraping is performed to improve the filtering efficiency of piperacillin sodium by the filtering device. At the same time, when the two scrapers 9 are centrifugally moved, the scrapers 9 knock the filtering tank body 1, thereby strengthening the cleaning effect of the piperacillin sodium crystals adhering to the inner wall of the filtering tank body 1, and further improving the filtering efficiency of piperacillin sodium by the filtering device. The top surfaces of the two scrapers 9 are slidably connected to the filtering tank body 1, and a spring 10 is fixedly connected to the side of the movable block 6 away from the movable rod 7. The end of the spring 10 away from the movable block 6 is welded to the connecting rod 5. The set spring 10 provides elastic pulling force, so that when the rotating rod 4 stops rotating, the two scrapers 9 are released from the abutment against the filtering tank body 1, thereby improving the functional structural stability of the device.

[0028] A feed port 11 and a door 20 are respectively installed on the top surface and the side surface of the filter tank body 1. The feed port 11 is provided to facilitate the introduction of the piperacillin sodium solution into the interior of the filter tank body 1. A filter frame 13 is slidably connected to the inner wall of the filter tank body 1 to fix the longitudinal movement path of the filter frame 13. At the same time, the filter frame 13 has sufficient thickness to prevent the filter frame 13 from flipping when it moves longitudinally, thereby improving the structural stability of the device parts. A filter screen 14 is fixedly connected to the inner wall of the filter frame 13, and the filter frame 13 provides support for the filter screen 14. Two rotating disks 15 are abutted against the bottom surface of the filter frame 13. A transmission rod 16 is welded on the adjacent sides of the two rotating disks 15. The transmission rod 16 provides a connection function, which facilitates the synchronous rotation of the two rotating disks 15 during the transmission process. A rotating block 17 is fixedly connected to one end of the rotating disk 15 away from the transmission rod 16. The rotating blocks 17 and the transmission rod 16 respectively provided on both sides of the rotating disk 15 are staggered, and at the same time, the rotating block 17 and the transmission rod 16 are not at the axial position of the rotating disk 15.

[0029] It is convenient to make the rotating disk 15 rotate with the rotating block 17 as the center, and under the gravity of the filter frame 13, the filter frame 13 is moved back and forth longitudinally to achieve the vibration effect on the filter screen 14, so as to prevent the crystallization of piperacillin sodium from clogging the filter screen 14, thereby improving the filtering efficiency of the filter device for piperacillin sodium. The side of the rotating block 17 is interference-fitted with a sealed bearing 18, and the provided sealed bearing 18 fixes the rotation position of the rotating block 17. At the same time, the sealed bearing 18 provides a sealing effect. The outer ring of the sealed bearing 18 is embedded and fixedly connected with the filter tank body 1, and the left rotating block 17 is away from One side of the rotating disk 15 is fixedly connected to the output shaft of the driving motor 19, and the driving motor 19 is provided to provide power, so that the output shaft of the driving motor 19 can rotate to drive the rotating block 17 on the left to rotate. The fixed end of the driving motor 19 is fixed to the outer wall of the filtering tank body 1, and the bottom surface of the filtering tank body 1 is connected to the solution tank 2. The solution tank 2 is provided to store the solution after the piperacillin sodium solution is precipitated. A discharge port 12 is installed on the side of the solution tank body 2. The discharge port 12 is provided to facilitate the introduction of the solution inside the solution tank 2, and the box door 20 is provided to facilitate the removal of the piperacillin sodium crystals.

[0030] The rotating motor 3 and the driving motor 19 are both prior arts, and their working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0031] How it works

[0032] When using the piperacillin sodium filtration device for injection, the user introduces the piperacillin sodium solution into the filtering tank body 1 through the feed port 11, so that the piperacillin sodium solution in the filtering tank body 1 is placed in a low temperature environment for crystallization, and the piperacillin sodium is separated from the solution through the provided filter screen 14, so as to achieve the filtering effect on the piperacillin sodium, and the rotating motor 3 is started, and the output shaft of the rotating motor 3 rotates to drive the rotating rod 4 to rotate, and under the action of centrifugal force, the movable block 6 is centrifugally moved along the inner cavity of the connecting rod 5, and under the connection effect of the movable rod 7, the two scrapers 9 are abutted against the inner wall of the filtering tank body 1, so as to scrape off the piperacillin sodium crystals adhering to the inner wall of the filtering tank body 1, thereby improving the filtering efficiency of the filtering device for piperacillin sodium, and the provided spring 10 provides an elastic pulling force, so that when the rotating rod 4 stops rotating, the abutment effect between the scraper 9 and the inner wall of the filtering tank body 1 is released, so as to facilitate the centrifugal movement of the scraper 9.

[0033] The scraper 9 knocks the inner wall of the filter tank body 1 to improve the cleaning effect of the piperacillin sodium crystals adhering to the inner wall of the filter tank body 1, thereby further improving the filtering efficiency of the filter device for piperacillin sodium, and starting the drive motor 19. The output shaft of the drive motor 19 drives the rotating block 17 on the left to rotate during the rotation process. The rotating blocks 17 and the transmission rods 16 respectively arranged on both sides of the rotating disk 15 are arranged in a staggered manner. At the same time, the rotating blocks 17 and the transmission rods 16 are not at the axial position of the rotating disk 15. Under the gravity of the filter frame 13, the longitudinal reciprocating movement of the filter frame 13 is convenient to achieve during the transmission process, thereby achieving a vibration effect on the filter screen 14, preventing the piperacillin sodium crystals from clogging the filter screen 14, thereby improving the filtering effect of the filter device on piperacillin sodium, allowing the solution to pass through the filter screen 14 and flow into the solution tank 2, and then be discharged through the discharge port 12. The provided box door 20 is convenient for taking out the piperacillin sodium crystals on the top of the filter screen 14.

[0034] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A piperacillin sodium injection filtering device, comprising a filtering tank (1), characterized in that: A rotating motor (3) is mounted on the top surface of the filter tank body (1); a rotating rod (4) is welded to the output shaft of the rotating motor (3); two pairs of connecting rods (5) are welded to the sides of the rotating rod (4); the top surfaces of the two upper connecting rods (5) are in sliding frictional contact with the filter tank body (1); and the end surfaces of the connecting rods (5) are slidably connected to movable blocks (6) via an inner cavity provided therein; The movable block (6) is fixedly connected to a movable rod (7) on its side, a sealing ring (8) is slidably sleeved on the side of the movable rod (7), the sealing ring (8) is embedded and fixedly connected to the connecting rod (5) on its side, two scrapers (9) are welded to the end faces of the two movable rods (7), the top surfaces of the two scrapers (9) are slidably connected to the filter tank body (1), a spring (10) is fixedly connected to the side of the movable block (6) away from the movable rod (7), and one end of the spring (10) away from the movable block (6) is welded to the connecting rod (5).

2. A piperacillin sodium injection filtration device according to claim 1, characterized in that: A feed inlet (11) and a box door (20) are respectively installed on the top surface and the side surface of the filter tank body (1), and a filter frame (13) is slidably connected to the inner side wall of the filter tank body (1).

3. A piperacillin sodium for injection filtering device according to claim 2, characterized in that: A filter screen (14) is fixedly connected to the inner wall of the filter frame (13), and two rotating disks (15) are abutted against the bottom surface of the filter frame (13).

4. A piperacillin sodium injection filtration device according to claim 3, characterized in that: A transmission rod (16) is welded to adjacent sides of the two rotating disks (15), and a rotating block (17) is fixedly connected to one end of the rotating disk (15) away from the transmission rod (16).

5. A piperacillin sodium injection filtration device according to claim 4, characterized in that: A sealing bearing (18) is interference-fitted on the side of the rotating block (17), and the outer ring of the sealing bearing (18) is embedded and fixedly connected with the filter tank body (1).

6. A piperacillin sodium injection filtration device according to claim 4, characterized in that: The side of the left rotating block (17) away from the rotating disk (15) is fixedly connected to the output shaft of the driving motor (19).

7. A piperacillin sodium injection filtration device according to claim 6, characterized in that: The fixed end of the driving motor (19) is fixed to the outer wall of the filter tank body (1), and the bottom surface of the filter tank body (1) is connected to the solution tank (2).

8. A piperacillin sodium injection filtration device according to claim 7, characterized in that: A discharge port (12) is installed on the side of the solution tank (2).

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