Axially-sealed mechanical seal liquid medicine extraction filter
By designing an axially sealed mechanical sealed liquid extraction filter in the filter equipment, the combination of sealing units and the coordination of positioning grooves and bumps is used to solve the problem of unsatisfactory sealing effect of existing filter equipment, and the higher production quality and production efficiency of medicine liquids.
Patent Information
- Application Number
- CN202420417754.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-03-05
AI Technical Summary
The mechanical sealing effect of existing filter equipment is not ideal, causing external dust and coolant to enter the filter, contaminating the drug liquid and affecting production quality.
Design an axially sealed mechanical sealing liquid extraction filter, adopting a combined structure of sealing units, including dust rings and O-rings on the upper and lower pressure covers, as well as Glee rings, through these seals Combination to ensure sealing effect.
Effectively prevent external dust and coolant from entering the filter, improve the production quality of the medicine liquid, and enhance the sealing effect. At the same time, through the coordination of the positioning groove and bump, the rotation and up and down movement of the spindle are synchronized, the mixing fullness of the medicine liquid and material is improved, and the production efficiency is improved.
Smart Images
Figure CN222489130U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of filters, and in particular relates to an axially sealed mechanically sealed liquid medicine extraction filter. Background Art
[0002] With the development of society, medical technology is becoming more and more advanced. When manufacturing medicines, filtering equipment is used to separate the drug liquid and materials. However, in some existing filtering equipment, the sealing effect of the mechanical seal is not ideal. During operation, the dust in the external environment and the coolant in the equipment will enter the interior of the filter due to the unsatisfactory sealing effect, thereby causing the drug liquid in the filter to be contaminated and affecting the production quality of the drug liquid. Utility Model Content
[0003] In view of the problems in the related technology, the utility model proposes an axially sealed mechanical seal liquid medicine extraction filter to overcome the above technical problems existing in the existing related technology.
[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0005] The utility model is an axially sealed mechanical seal liquid medicine extraction filter, comprising a filter, a sealing unit is installed on the filter, a shaft sleeve is installed in the sealing unit, a main shaft is installed in the shaft sleeve, the main shaft and the shaft sleeve are matched, and the main shaft and the shaft sleeve are coaxial, an upper pressure cover and a lower pressure cover are respectively installed on the upper and lower ends of the shaft sleeve, a dustproof ring and an O-ring are respectively installed on the upper pressure cover, and a dustproof ring, a gray ring and an O-ring are respectively installed on the lower pressure cover.
[0006] Further, the dust ring is installed at the upper end of the upper pressure cover, and the dust ring is located between the upper pressure cover and the main shaft. The O-ring is installed at the lower end of the upper pressure cover, and the O-ring is located between the upper pressure cover and the shaft sleeve.
[0007] Furthermore, the second dust ring is installed at the lower end of the lower pressure cover, the second dust ring is located between the lower pressure cover and the main shaft, the middle section of the lower pressure cover is installed with a Gly ring, the Gly ring is located between the lower pressure cover and the main shaft, and the second O-ring is located between the upper pressure cover and the sleeve.
[0008] Furthermore, a bearing is installed in the sealing unit, the bearing is coaxial with the sealing unit, the sleeve is installed on the bearing, both ends of the sleeve extend from both ends of the sealing unit, the upper end of the sleeve is located outside the sealing unit, and the lower end of the sleeve is located in the filter.
[0009] Furthermore, a bellows is installed on the part of the main shaft inside the filter, the bellows fits with the main shaft, and the upper side of the bellows is tightly connected to the lower side of the lower gland.
[0010] Furthermore, a positioning groove is provided on a section of the main shaft located inside the sealing unit.
[0011] Furthermore, a protrusion is provided in the shaft sleeve, the protrusion corresponds to the positioning groove, two sides of the protrusion fit with two sides of the positioning groove, and the protrusion is shorter than the positioning groove.
[0012] Furthermore, the lower side of the sealing unit is connected with a kettle flange via bolts, and the kettle flange is mounted on the filter.
[0013] The utility model has the following beneficial effects: by using an axially sealed mechanical seal drug liquid extraction filter, the sealing unit prevents dust in the external environment and coolant in the equipment from entering the filter through the sealing unit through the combination of a dust ring 1 and an O-ring 1 on the upper pressure cover and a dust ring 2 and a Gly ring and an O-ring 2 on the lower pressure cover. When the filter is working, the motor on the filter drives the main shaft to rotate so that the stirring paddle on the other end of the main shaft stirs the drug liquid and material mixture in the filter. During this process, the main shaft drives the shaft sleeve under the cooperation of the positioning groove and the protrusion. The shaft sleeve rotates synchronously with the main shaft in the sealing unit through the bearing. While the shaft sleeve rotates with the main shaft, the main shaft can move up or down in the shaft sleeve. During this process, the protrusion It slides linearly in the positioning groove relative to each other, and the bellows will contract and extend synchronously with the rise or fall of the main shaft. Through the combination of dust ring 1 and O-ring 1 on the upper pressure cover of the sealing unit and dust ring 2, Gly ring and O-ring 2 on the lower pressure cover, it is effectively prevented that the dust in the external environment and the coolant in the equipment enter the filter through the sealing unit, which causes the liquid medicine in the filter to be contaminated and affects the production quality of the liquid medicine, thereby improving the production quality of the liquid medicine and further improving the sealing effect. Through the cooperation of the positioning groove and the protrusion, the main shaft can rotate and move up and down synchronously in the sealing device, so that the mixture of liquid medicine and material in the filter can be stirred more fully, thereby improving production efficiency.
[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments 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 creative work.
[0016] Figure 1 It is a front cross-sectional structural schematic diagram of the utility model;
[0017] Figure 2 It is a left side cross-sectional structural schematic diagram of the utility model;
[0018] Figure 3 It is a right side cross-sectional structural schematic diagram of the utility model;
[0019] Figure 4 It is a schematic diagram of the right side structure of the utility model;
[0020] Figure 5 For this utility model Figure 1 A local enlarged structural schematic diagram;
[0021] Figure 6 For this utility model Figure 1 A schematic diagram of the local enlarged structure at B;
[0022] Figure 7 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point C.
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1. Filter; 2. Sealing unit; 3. Bushing; 4. Main shaft; 5. Upper pressure cover; 6. Lower pressure cover; 7. Dust ring 1; 8. O-ring 1; 9. Dust ring 2; 10. Gly ring; 11. O-ring 2; 12. Bearing; 13. Bellows; 14. Positioning groove; 15. Bump; 16. Kettle mouth flange. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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.
[0027] See also Figure 1-7 As shown, the utility model is an axially sealed mechanical seal liquid extraction filter, comprising a filter 1, a sealing unit 2 is installed on the filter 1, a shaft sleeve 3 is installed in the sealing unit 2, a main shaft 4 is installed in the shaft sleeve 3, the main shaft 4 is matched with the shaft sleeve 3, and the main shaft 4 is coaxial with the shaft sleeve 3, an upper gland 5 and a lower gland 6 are installed at the upper and lower ends of the shaft sleeve 3, respectively, a dust ring 7 and an O-ring 8 are installed on the upper gland 5, respectively, a dust ring 9, a gray ring 10, and an O-ring 11 are installed on the lower gland 6; the sealing unit 2 is sealed by the dust ring 7 and the O-ring 8 on the upper gland 5. The combination of the dust ring 29, the grid ring 10 and the O-ring 21 on the lower pressure cover 6 prevents dust in the external environment and the coolant in the equipment from entering the interior of the filter 1 through the sealing unit 2. The combination of the dust ring 17 and the O-ring 18 on the upper pressure cover 5 of the sealing unit 2 and the dust ring 29, the grid ring 10 and the O-ring 21 on the lower pressure cover 6 effectively prevents dust in the external environment and the coolant in the equipment from entering the interior of the filter through the sealing unit, thereby preventing the liquid medicine in the filter 1 from being contaminated and affecting the production quality of the liquid medicine, thereby improving the production quality of the liquid medicine and further improving the sealing effect.
[0028] In one embodiment, for the above-mentioned axially sealed mechanical seal liquid extraction filter, the dust ring 7 is installed at the upper end of the upper cover 5, and the dust ring 7 is located between the upper cover 5 and the main shaft 4. The O-ring 8 is installed at the lower end of the upper cover 5, and the O-ring 8 is located between the upper cover 5 and the sleeve 3.
[0029] In one embodiment, for the above-mentioned axially sealed mechanical seal liquid extraction filter, the dust ring 9 is installed at the lower end of the lower pressure cover 6, and the dust ring 9 is located between the lower pressure cover 6 and the main shaft 4. The middle section of the lower pressure cover 6 is installed with a grid ring 10, and the grid ring 10 is located between the lower pressure cover 6 and the main shaft 4. The O-ring 11 is located between the upper pressure cover 5 and the sleeve 3.
[0030] In one embodiment, for the above-mentioned axially sealed mechanical seal liquid extraction filter, a bearing 12 is installed in the sealing unit 2, and the bearing 12 is coaxial with the sealing unit 2. The sleeve 3 is installed on the bearing 12, and the two ends of the sleeve 3 extend from the two ends of the sealing unit 2. The upper end of the sleeve 3 is located outside the sealing unit 2, and the lower end of the sleeve 3 is located inside the filter 1; when the filter 1 is working, the main shaft 4 will drive the sleeve 3 with the cooperation of the positioning groove 14 and the protrusion 15, and the sleeve 3 will rotate synchronously with the main shaft 4 in the sealing unit 2 through the bearing 12.
[0031] In one embodiment, for the above-mentioned axially sealed mechanically sealed liquid extraction filter, a bellows 13 is installed on the part of the main shaft 4 inside the filter 1, and the bellows 13 fits with the main shaft 4, and the upper side of the bellows 13 is tightly connected to the lower side of the lower pressure cover 6; the bellows 13 will contract and extend synchronously with the rise or fall of the main shaft 4, and protect the main shaft 4.
[0032] In one embodiment, for the above-mentioned axially sealed mechanical seal liquid medicine extraction filter, a positioning groove 14 is opened on a section of the main shaft 4 located in the sealing unit 2; while the sleeve 3 rotates with the main shaft 4, the main shaft 4 can move up or down in the sleeve 3, and during this process, the protrusion 15 slides linearly in the positioning groove 14 relatively. Through the cooperation of the positioning groove 14 and the protrusion 15, the main shaft 4 can rotate and move up and down synchronously in the sealing unit 2, so that the mixture of liquid medicine and material in the filter 1 can be stirred more fully, thereby improving production efficiency.
[0033] In one embodiment, for the above-mentioned axially sealed mechanical seal liquid extraction filter, a protrusion 15 is provided in the sleeve 3, and the protrusion 15 corresponds to the positioning groove 14, and the two sides of the protrusion 15 are in contact with the two sides of the positioning groove 14, and the protrusion 15 is shorter than the length of the positioning groove 14.
[0034] In one embodiment, for the above-mentioned axially sealed mechanically sealed liquid drug extraction filter, the lower side of the sealing unit 2 is connected with a kettle flange 16 by bolts, and the kettle flange 16 is installed on the filter 1.
[0035] In summary, with the aid of the above technical scheme of the utility model, by using an axially sealed mechanical seal liquid medicine extraction filter, the sealing unit 2 prevents dust in the external environment and coolant in the equipment from entering the interior of the filter 1 through the sealing unit 2 through the combination of the dust ring 7 and the O-ring 8 on the upper pressure cover 5 and the dust ring 9 and the gray ring 10 and the O-ring 11 on the lower pressure cover 6. When the filter 1 is working, the motor on the filter 1 drives the main shaft 4 to rotate so that the stirring paddle on the other end of the main shaft 4 stirs the liquid and material mixture in the filter 1. In this process, the main shaft 4 will drive the sleeve 3 with the cooperation of the positioning groove 14 and the protrusion 15, and the sleeve 3 will rotate synchronously with the main shaft 4 in the sealing unit 2 through the bearing 12. While the sleeve 3 rotates with the main shaft 4, the main shaft 4 can move up or down in the sleeve 3. In this process, the protrusion 15 slides linearly in the positioning groove 14 relative to each other, and the bellows 13 will shrink and extend synchronously with the rise or fall of the main shaft 4.
[0036] Through the above technical scheme, 1. Through the combination of dustproof ring 1 and O-ring 1 on the upper pressure cover of the sealing unit and dustproof ring 2, Gly ring and O-ring 2 on the lower pressure cover, it is effectively prevented that the dust in the external environment and the coolant in the equipment enter the filter through the sealing unit, causing the liquid medicine in the filter to be contaminated, affecting the production quality of the liquid medicine, thereby improving the production quality of the liquid medicine and further improving the sealing effect.
[0037] Through the cooperation of the positioning groove and the protrusion, the main shaft can rotate and move up and down synchronously in the sealing device, so that the mixture of the liquid medicine and the material in the filter can be stirred more fully, thereby improving the production efficiency.
[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An axially sealed mechanical seal liquid extraction filter, characterized in that: The invention comprises a filter (1), wherein a sealing unit (2) is installed on the filter (1), a shaft sleeve (3) is installed in the sealing unit (2), a main shaft (4) is installed in the shaft sleeve (3), the main shaft (4) and the shaft sleeve (3) are matched, and the main shaft (4) and the shaft sleeve (3) are coaxial, an upper pressure cover (5) and a lower pressure cover (6) are installed at the upper end and the lower end of the shaft sleeve (3), respectively, a dustproof ring (7) and an O-ring (8) are installed on the upper pressure cover (5), respectively, and a dustproof ring (9), a gray ring (10), and an O-ring (11) are installed on the lower pressure cover (6).
2. The axially sealed mechanical seal liquid medicine extraction filter according to claim 1, characterized in that: The dustproof ring 1 (7) is installed at the upper end of the upper pressure cover (5), and the dustproof ring 1 (7) is located between the upper pressure cover (5) and the main shaft (4). The O-ring 1 (8) is installed at the lower end of the upper pressure cover (5), and the O-ring 1 (8) is located between the upper pressure cover (5) and the shaft sleeve (3).
3. The axially sealed mechanical seal liquid medicine extraction filter according to claim 1, characterized in that: The second dust ring (9) is installed at the lower end of the lower pressure cover (6), and the second dust ring (9) is located between the lower pressure cover (6) and the main shaft (4). A grid ring (10) is installed in the middle section of the lower pressure cover (6), and the grid ring (10) is located between the lower pressure cover (6) and the main shaft (4). The second O-ring (11) is located between the upper pressure cover (5) and the shaft sleeve (3).
4. The axially sealed mechanical seal liquid medicine extraction filter according to claim 1, characterized in that: A bearing (12) is installed in the sealing unit (2), the bearing (12) and the sealing unit (2) are coaxial, the shaft sleeve (3) is installed on the bearing (12), two ends of the shaft sleeve (3) extend from two ends of the sealing unit (2), the upper end of the shaft sleeve (3) is located outside the sealing unit (2), and the lower end of the shaft sleeve (3) is located inside the filter (1).
5. The axially sealed mechanical seal liquid medicine extraction filter according to claim 1, characterized in that: A bellows (13) is installed on the portion of the main shaft (4) inside the filter (1); the bellows (13) fits with the main shaft (4); and the upper side of the bellows (13) is tightly connected to the lower side of the lower gland (6).
6. The axially sealed mechanical seal liquid medicine extraction filter according to claim 1, characterized in that: A positioning groove (14) is provided on a section of the main shaft (4) located inside the sealing unit (2).
7. The axially sealed mechanical seal liquid medicine extraction filter according to claim 6, characterized in that: A protrusion (15) is provided in the shaft sleeve (3), the protrusion (15) corresponds to the positioning groove (14), two sides of the protrusion (15) fit with two sides of the positioning groove (14), and the protrusion (15) is shorter than the positioning groove (14).
8. The axially sealed mechanical seal liquid medicine extraction filter according to claim 1, characterized in that: The lower side of the sealing unit (2) is connected to a kettle mouth flange (16) via bolts, and the kettle mouth flange (16) is mounted on the filter (1).