CN219882335U - Oversleeve fixing device for negative pressure isolator - Google Patents
Oversleeve fixing device for negative pressure isolator Download PDFInfo
- Publication number
- CN219882335U CN219882335U CN202320803346.XU CN202320803346U CN219882335U CN 219882335 U CN219882335 U CN 219882335U CN 202320803346 U CN202320803346 U CN 202320803346U CN 219882335 U CN219882335 U CN 219882335U
- Authority
- CN
- China
- Prior art keywords
- ring
- fixing
- sleeve
- negative pressure
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 230000000670 limiting effect Effects 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 19
- 230000002829 reductive effect Effects 0.000 abstract description 7
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000001954 sterilising effect Effects 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 239000003206 sterilizing agent Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000000975 bioactive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a sleeve fixing device for a negative pressure isolator, which comprises a sleeve fixing ring, wherein an installation seat for assembling the sleeve fixing ring on the negative pressure isolator is arranged at the inner end of the sleeve fixing ring, an outer ring cover for fixing the sleeve is sleeved at the outer end of the sleeve fixing ring, the outer ring cover is fixed on the installation seat through a fixing bolt, an annular sealing groove is arranged on the outer side wall of the outer ring cover, a sealing ring is arranged in the annular sealing groove, and the annular sealing groove is positioned at the inner side of the outer ring cover. The sleeve fixing device can be used in the sterilization state of the external environment of the negative pressure isolator, so that the erosion and damage of the external environment to the sleeve are reduced, and the service life is prolonged; simple structure, fixed through fixing bolt and connecting bolt, the installation is convenient with the dismantlement, and processing cost is lower.
Description
Technical Field
The utility model relates to the technical field of isolator equipment, in particular to a sleeve fixing device for a negative pressure isolator.
Background
The negative pressure isolator is used for constructing a negative pressure working area, so that cross contamination of inside and outside air is prevented, and safety of personnel and environment is ensured. The pollution risk of bioactive substances can be effectively reduced by matching with advanced material transfer technology and biological decontamination method. The method is widely applied to detection and production in the industries of biological pharmacy, chemical industry and the like. The negative pressure isolator is subjected to production and detection processes through oversleeve operation, and the oversleeve fixing device is used as a key component for oversleeve fixing and sealing on the negative pressure isolator, so that the protective property and the convenience generated in the negative pressure isolator are very important. In the prior art, the sleeve fixing device is arranged on the cabin door of the negative pressure isolator, the sleeve is fixed on the sleeve fixing device through the sealing ring, the sealing ring is directly exposed in the external environment after fixing and sealing, the protection and the damage are avoided, when the external environment of the negative pressure isolator is wholly sterilized, the fixing ends of the sealing ring and the sleeve are directly contacted with a sterilizing medium, the corrosion resistance is realized, the service life of the sleeve is reduced, and the risk of sleeve damage and leakage exists.
For example, chinese patent publication No. CN205704286U, publication No. 2016, 11-23, entitled "an isolator glove", comprising glove, glove retainer ring, outer decorative cover, fixing ring, fixing screw, glove support frame, fixing seal ring, glove seal ring, support frame locking handle, fixing plate; the outer decorative cover is rotationally fixed on the outer side of the fixed compression ring through an inclined wedge clamping groove or threads on the inner side of the outer decorative cover; the glove is sleeved outside the glove fixing ring and is supported by the glove supporting frame, and the glove sealing ring is used for compressing and sealing; the support frame locking handle is arranged at the U-shaped opening of the support frame at the glove outlet.
The existing patents have the following defects: the fixed end of the sleeve and the sealing ring for fixing and sealing the sleeve are directly exposed in the external environment by the conventional sleeve fixing device, and the risk of corrosion caused by direct contact of the sleeve and a sterilizing medium and easy breakage exists in daily use.
Disclosure of Invention
The utility model aims to solve the problems that the fixed end of a sleeve and a sealing ring for fixing and sealing the sleeve are directly exposed to the external environment in the conventional sleeve fixing device, and the sleeve fixing device is easy to damage and corrode due to direct contact with a sterilizing medium in daily use.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a oversleeve fixing device for negative pressure isolator, includes the oversleeve retainer plate, the inner of oversleeve retainer plate is equipped with and is used for assembling the mount pad on the negative pressure isolator with the oversleeve retainer plate, the outer pot head of oversleeve retainer plate is equipped with the outer lane lid that is used for fixed oversleeve, the outer lane lid passes through fixing bolt to be fixed on the mount pad, be equipped with annular seal groove on the outer lateral wall of outer lane lid, be equipped with the sealing washer in the annular seal groove, annular seal groove is located the outer lane lid inboard. According to the sleeve fixing device for the negative pressure isolator, the outer ring cover is used for protecting the fixed end of the sleeve. During installation, the sleeve fixing ring is fixed on the cabin door of the negative pressure isolator through the installation seat, two ends of the sleeve fixing ring are communicated, the inner end of the sleeve fixing ring is one end facing the inside of the negative pressure isolator, and the outer end of the sleeve fixing end is one end facing the outside of the negative pressure isolator. The outer ring cover is sleeved on the outer side wall of the outer end of the sleeve fixing ring, the fixed end of the sleeve is sleeved on the outer end of the sleeve fixing ring, the sealing ring is sleeved on the outer side wall of the sleeve fixing ring, the sealing ring is sealed and fixed, the outer ring cover is sleeved on the outer side wall of the outer end of the sleeve fixing ring, the protection effect is achieved on the fixed end of the sleeve and the sealing ring, and the sealing ring tightly presses part of the sleeve in the annular sealing groove. The sleeve fixing device can be used in the sterilization state of the external environment of the negative pressure isolator, so that the erosion and damage of the external environment to the sleeve are reduced, and the service life is prolonged. The outer ring cover is fixed on the mounting seat through the fixing bolt, and the mounting and the dismounting are convenient.
Preferably, the sectional area of the inner side wall at the inner end of the sleeve fixing ring is larger than the sectional area of the inner side wall at the outer end of the sleeve fixing ring. The sectional area of the inner side wall of the sleeve fixing ring positioned in the negative pressure isolator is larger than that of the inner side wall of the sleeve fixing ring positioned outside the negative pressure isolator, the inner end sectional area of the sleeve fixing ring is large, so that the operation space is increased, the outer end sectional area of the sleeve fixing ring is small, on one hand, the slit wind speed requirement of the negative pressure isolator is met, and on the other hand, the sleeve is sleeved in accordance with the conventional size of the sleeve.
Preferably, one end of the outer ring cover is connected with the mounting seat, and the other end of the outer ring cover is provided with a sealing end face for pressing the sleeve on the outer end face of the sleeve fixing ring. The sealing end face enables the sleeve to be pressed on the end face of the outer end of the sleeve fixing ring, and the bending part of the sleeve is prevented from being exposed to the external environment.
Preferably, the mounting seat comprises an inner lining ring sleeved at the inner end of the oversleeve fixing ring and a fixing plate sleeved on the oversleeve fixing ring, the inner lining ring is connected with the fixing plate through a connecting bolt, a mounting groove is formed between the inner lining ring and the fixing plate, and the outer ring cover is fixed on the fixing plate through a fixing bolt. The inner lining ring, the fixing plate and the outer ring cover are all annular. Through connecting bolt and fixing bolt fixed connection, the installation is dismantled conveniently. The mounting groove is matched with a mounting hole on a cabin door of the negative pressure isolator. The sleeve fixing ring is characterized in that a limiting piece is arranged on the outer side wall of the sleeve fixing ring, the limiting piece is located between the inner lining ring and the fixing plate, and after the fixing plate and the inner lining ring are connected and installed through connecting bolts, the limiting piece limits the fixing plate and the inner lining ring on the sleeve fixing ring. The sleeve retainer ring is located between the inner liner and the outer cup cover.
Preferably, a guide groove is formed in one end, facing the fixing plate, of the inner lining ring, the inner end of the sleeve fixing ring stretches into the guide groove, a first sealing groove is formed in the outer side wall of the inner end of the sleeve fixing ring, a first sealing ring is arranged in the first sealing groove, and the sleeve fixing ring and the inner lining plate are sealed through the first sealing ring. The guide groove plays a guiding role, and prevents the sleeve fixing ring from penetrating through the lining ring to play a positioning role.
Preferably, a second sealing groove is formed in one end, facing the fixing plate, of the inner lining ring, a second sealing ring is arranged in the second sealing groove, and the second sealing ring is located in the mounting groove. The second sealing ring is used for improving the tightness of the inner lining ring and the cabin door of the negative pressure isolator.
Preferably, a guide post is arranged on one side of the fixing plate, facing the outer ring cover, a guide hole matched with the guide post is formed in the outer ring cover, a threaded hole is formed in the guide post, and the fixing bolt penetrates through the guide hole and is in threaded connection with the threaded hole in the guide post. The guide post is matched with the wire guide, so that the positioning and the installation are convenient.
Preferably, the fixing plate is formed by combining two arc plates distributed circumferentially, a limiting groove is formed in the outer side wall of the sleeve fixing ring, the inner ring of the arc plate stretches into the limiting groove, and the limiting groove limits the arc plate on the sleeve fixing ring. During installation, the arc-shaped plates are involutively inserted into the limiting grooves to play a role of limiting the fixing plates, so that the inner lining ring and the outer ring cover are installed by taking the fixing plates as base plates, and the installation accuracy is improved. The number of the limiting parts on the outer side wall of the oversleeve fixing ring is two, and the two limiting parts form a limiting groove.
Preferably, the cross section of the sleeve fixing ring is elliptical. The oval shape improves the operation range of the oversleeve retainer plate, and under the fixed basis of oversleeve size, oval compares circular for operating personnel increases in horizontal, vertical or slant upward operating space.
Preferably, the number of the annular seal grooves is plural, and the plurality of annular seal grooves are distributed along the length direction of the oversleeve fixing ring. The sleeves are tightly pressed in the corresponding annular sealing grooves one by adopting a plurality of annular sealing grooves and sealing rings. The sleeve is convenient to replace in the negative pressure isolator. Taking down the sealing ring close to the inside of the negative pressure isolator, sleeving a new sleeve on the outer end of the sleeve fixing ring, fixing the fixing ring of the sleeve in the annular sealing ring close to the inside of the negative pressure isolator by using the sealing ring, taking down the old sleeve through the new sleeve in the inside of the negative pressure isolator, taking out through a specific channel, and fixing the sealing rings close to the outside of the negative pressure isolator one by one to finish replacement.
Therefore, the utility model has the following beneficial effects: (1) The sleeve fixing device can be used in the sterilization state of the external environment of the negative pressure isolator, so that the erosion and damage of the external environment to the sleeve are reduced, and the service life is prolonged; (2) Simple structure, fixed through fixing bolt and connecting bolt, the installation is convenient with the dismantlement, and processing cost is lower.
Drawings
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is a schematic view of a structure of the present utility model.
Fig. 3 is a schematic view of another construction of the present utility model.
Fig. 4 is a partial enlarged view at a in fig. 1.
The following figures are shown:
sleeve fixing ring 1, annular sealing ring 1.1, limit groove 1.2, first sealing groove 1.3,
An outer ring cover 2, a sealing end face 2.1, a guide hole 2.2,
A fixing bolt 3, a sealing ring 4,
A lining ring 5, a guide groove 5.1, a second seal groove 5.2,
A fixed plate 6, a guide post 6.1,
Mounting groove 7, first sealing washer 8, second sealing washer 9.
Detailed Description
In order to make the purposes, technical solutions and advantages of the technical solution embodiments of the present utility model more clear, the present utility model is further described below with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1, 2, 3 and 4, a sleeve fixing device for a negative pressure isolator comprises a sleeve fixing ring 1, wherein an installation seat for assembling the sleeve fixing ring 1 on the negative pressure isolator is arranged at the inner end of the sleeve fixing ring 1, an outer ring cover 2 for fixing the sleeve is sleeved at the outer end of the sleeve fixing ring 1, the outer ring cover 2 is fixed on the installation seat through a fixing bolt 3, an annular sealing groove is arranged on the outer side wall of the outer ring cover 2, a sealing ring 4 is arranged in the annular sealing groove, and the annular sealing groove is positioned at the inner side of the outer ring cover 2.
In the above embodiment, the sleeve fixing device for the negative pressure isolator protects the fixed end of the sleeve through the outer ring cover 2. During installation, the sleeve fixing ring 1 is fixed on the cabin door of the negative pressure isolator through the installation seat, two ends of the sleeve fixing ring 1 are communicated, the inner end of the sleeve fixing ring 1 is one end facing the inside of the negative pressure isolator, and the outer end of the sleeve fixing end is one end facing the outside of the negative pressure isolator. The outer end of the sleeve fixing ring 1 is installed, the fixing end of the sleeve is sleeved on the outer end of the sleeve fixing ring 1, the sealing ring 4 is sleeved and seals the sleeve on the outer side wall of the sleeve fixing ring 1, after the sealing ring 4 is sealed and fixed, the outer ring cover 2 is sleeved on the outer side wall of the outer end of the sleeve fixing ring 1, the fixing end of the sleeve and the sealing ring 4 play a protective role, and part of the sleeve is tightly pressed in the annular sealing groove by the sealing ring 4. The sleeve fixing device can be used in the sterilization state of the external environment of the negative pressure isolator, so that the erosion and damage of the external environment to the sleeve are reduced, and the service life is prolonged. The outer ring cover 2 is fixed on the mounting seat through the fixing bolt 3, and the mounting and the dismounting are convenient. The problems that the fixed end of the sleeve and the sealing ring 4 for fixing and sealing the sleeve are directly exposed in the external environment in the conventional sleeve fixing device, and the sleeve is easy to damage and erode due to direct contact with a sterilizing medium in daily use are solved.
Further, as shown in fig. 1 and 3, the sectional area of the inner side wall of the inner end of the sleeve fixing ring 1 is larger than the sectional area of the inner side wall of the outer end of the sleeve fixing ring 1. The sectional area of the inner side wall of the sleeve fixing ring 1 positioned in the negative pressure isolator is larger than the sectional area of the inner side wall of the sleeve fixing ring 1 positioned outside the negative pressure isolator, the inner end sectional area of the sleeve fixing ring 1 is large, so that the operation space is increased, the outer end sectional area of the sleeve fixing ring 1 is small, on one hand, the slit wind speed requirement of the negative pressure isolator is met, and on the other hand, the sleeve is sleeved according with the conventional size of the sleeve.
Further, as shown in fig. 1 and 2, one end of the outer ring cover 2 is connected to the mounting base, and the other end of the outer ring cover 2 is provided with a sealing end face 2.1 for pressing the sleeve against the outer end face of the sleeve fixing ring 1. The sealing end face 2.1 enables the sleeve to be pressed on the outer end face of the sleeve fixing ring 1, and the bending part of the sleeve is prevented from being exposed to the external environment.
The mounting seat is further optimized, as shown in fig. 1, 2 and 4, the mounting seat comprises an inner lining ring 5 sleeved at the inner end of the oversleeve fixing ring 1 and a fixing plate 6 sleeved on the oversleeve fixing ring 1, the inner lining ring 5 is connected with the fixing plate 6 through a connecting bolt, a mounting groove 7 is arranged between the inner lining ring 5 and the fixing plate 6, and the outer ring cover 2 is fixed on the fixing plate 6 through a fixing bolt 3. The inner liner 5, the fixing plate 6 and the outer ring cover 2 are all annular. Through connecting bolt and fixing bolt 3 fixed connection, the installation is dismantled conveniently. The mounting groove 7 is matched with a mounting hole on a cabin door of the negative pressure isolator. The outer side wall of the oversleeve retainer plate 1 is provided with a limiting piece, the limiting piece is positioned between the inner lining ring 5 and the fixed plate 6, and after the fixed plate 6 and the inner lining ring 5 are connected and installed through connecting bolts, the limiting piece limits the fixed plate 6 and the inner lining ring 5 on the oversleeve retainer plate 1. The sleeve retainer 1 is located between the inner liner 5 and the outer cup cover 2. The one end that interior lining circle 5 was equipped with guiding groove 5.1 towards fixed plate 6, and in the inner of oversleeve retainer plate 1 stretched into guiding groove 5.1, be equipped with first seal groove 1.3 on the inner lateral wall of oversleeve retainer plate 1, be equipped with first sealing washer 8 in the first seal groove 1.3, oversleeve retainer plate 1 and interior welt were sealed through first sealing washer 8. The guiding groove 5.1 plays a guiding role, and prevents the sleeve fixing ring 1 from penetrating through the lining ring 5 to play a positioning role. The end of the lining ring 5 facing the fixed plate 6 is provided with a second sealing groove 5.2, a second sealing ring 9 is arranged in the second sealing groove 5.2, and the second sealing ring 9 is positioned in the mounting groove 7. The second sealing ring 9 serves to improve the tightness of the inner liner 5 and the door of the negative pressure isolator. The fixed plate 6 is equipped with guide post 6.1 towards one side of outer lane lid 2, is equipped with on the outer lane lid 2 with guide post 6.1 complex guiding hole 2.2, be equipped with the screw hole on the guide post 6.1, fixing bolt 3 passes guiding hole 2.2 and the screw hole threaded connection on the guide post 6.1. The guide post 6.1 is matched with the wire guide, so that the positioning and the installation are convenient.
Further optimizing the fixed plate 6, the fixed plate 6 is formed by combining two arc plates which are circumferentially distributed, a limiting groove 1.2 is formed in the outer side wall of the sleeve fixed ring 1, the inner ring of the arc plate stretches into the limiting groove 1.2, and the limiting groove 1.2 limits the arc plate on the sleeve fixed ring 1. During installation, the arc-shaped plates are inserted into the limiting grooves 1.2 in a involution mode, the limiting fixing plates 6 are used, the inner ring 5 and the outer ring cover 2 are installed by taking the fixing plates 6 as base plates, and installation accuracy is improved. The number of the limiting pieces on the outer side wall of the oversleeve fixing ring 1 is two, and the two limiting pieces form a limiting groove 1.2.
Further, as shown in fig. 3, the cross section of the sleeve retainer 1 is elliptical. The oval shape improves the operation range of the sleeve retainer plate 1, and on the basis of the fixed sleeve size, the oval shape is compared with the round shape, so that the operation space of an operator is increased in the transverse direction, the longitudinal direction or the oblique direction.
Further, as shown in fig. 1 and 4, the number of the annular seal grooves is plural, and the plurality of annular seal grooves are distributed along the length direction of the sleeve fixing ring 1. The sleeves are tightly pressed in the corresponding annular sealing grooves one by adopting a plurality of annular sealing grooves and sealing rings 4. The sleeve is convenient to replace in the negative pressure isolator. Taking down the sealing ring 4 close to the inside of the negative pressure isolator, sleeving a new sleeve on the outer end of the sleeve fixing ring 1, fixing the fixing ring of the sleeve in the annular sealing ring 1.1 close to the inside of the negative pressure isolator by using the sealing ring 4, taking down the old sleeve through the new sleeve in the inside of the negative pressure isolator, taking out through a specific channel, and fixing the sealing rings 4 close to the outside of the negative pressure isolator one by one to finish replacement.
The utility model has the following beneficial effects: (1) The sleeve fixing device can be used in the sterilization state of the external environment of the negative pressure isolator, so that the erosion and damage of the external environment to the sleeve are reduced, and the service life is prolonged; (2) Simple structure, it is fixed through fixing bolt 3 and connecting bolt, the installation is convenient with the dismantlement, and processing cost is lower.
The above embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. All equivalent changes in shape and structure according to the present utility model are intended to be included in the scope of the present utility model.
Claims (10)
1. The utility model provides a oversleeve fixing device for negative pressure isolator, its characterized in that, including oversleeve retainer plate (1), the inner of oversleeve retainer plate is equipped with and is used for assembling the mount pad on the negative pressure isolator with the oversleeve retainer plate, the outer pot head of oversleeve retainer plate is equipped with outer lane lid (2) that are used for fixed oversleeve, the outer lane lid passes through fixing bolt (3) to be fixed on the mount pad, be equipped with annular seal groove (1.1) on the outer lane lid lateral wall, be equipped with sealing washer (4) in the annular seal groove, annular seal groove is located outer lane lid inboard.
2. The cuff fixture for a negative pressure isolator as claimed in claim 1, wherein the sectional area of the inner side wall of the inner end of the cuff fixture ring is larger than the sectional area of the inner side wall of the outer end of the cuff fixture ring.
3. A cuff fixing device for a negative pressure isolator according to claim 2, wherein one end of the outer ring cover is connected to the mounting base, and the other end of the outer ring cover is provided with a sealing end face (2.1) for pressing the cuff against the outer end face of the cuff fixing ring.
4. A cuff fixing device for a negative pressure isolator according to claim 1, 2 or 3, wherein the mounting base comprises an inner collar (5) sleeved at the inner end of the cuff fixing collar and a fixing plate (6) sleeved on the cuff fixing collar, the inner collar is connected with the fixing plate through a connecting bolt, a mounting groove (7) is arranged between the inner collar and the fixing plate, and the outer ring cover is fixed on the fixing plate through a fixing bolt.
5. The sleeve fixing device for the negative pressure isolator according to claim 4, wherein a guide groove (5.1) is formed in one end, facing the fixing plate, of the inner liner, the inner end of the sleeve fixing ring extends into the guide groove, a first sealing groove (1.3) is formed in the outer side wall of the inner end of the sleeve fixing ring, a first sealing ring (8) is arranged in the first sealing groove, and the sleeve fixing ring and the inner lining plate are sealed through the first sealing ring.
6. The sleeve fixing device for the negative pressure isolator according to claim 5, wherein a second sealing groove (5.2) is formed in one end, facing the fixing plate, of the inner liner, a second sealing ring (9) is arranged in the second sealing groove, and the second sealing ring is located in the mounting groove.
7. The sleeve fixing device for the negative pressure isolator according to claim 6, wherein a guide post (6.1) is arranged on one side of the fixing plate, which faces the outer ring cover, a guide hole (2.2) matched with the guide post is arranged on the outer ring cover, a threaded hole is arranged on the guide post, and the fixing bolt penetrates through the guide hole and is in threaded connection with the threaded hole on the guide post.
8. The sleeve fixing device for the negative pressure isolator according to claim 4, wherein the fixing plate is formed by combining two arc plates distributed circumferentially, a limiting groove (1.2) is formed in the outer side wall of the sleeve fixing ring, the inner ring of the arc plate extends into the limiting groove, and the limiting groove limits the arc plate on the sleeve fixing ring.
9. A cuff fixture for a negative pressure isolator as claimed in claim 3, wherein the cross section of the cuff fixture ring is elliptical.
10. The sleeve fixing device for the negative pressure isolator according to claim 1, 2, 3 or 9, wherein the number of the annular sealing grooves is plural, and the plurality of annular sealing grooves are distributed along the length direction of the sleeve fixing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320803346.XU CN219882335U (en) | 2023-04-06 | 2023-04-06 | Oversleeve fixing device for negative pressure isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320803346.XU CN219882335U (en) | 2023-04-06 | 2023-04-06 | Oversleeve fixing device for negative pressure isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219882335U true CN219882335U (en) | 2023-10-24 |
Family
ID=88405830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320803346.XU Active CN219882335U (en) | 2023-04-06 | 2023-04-06 | Oversleeve fixing device for negative pressure isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219882335U (en) |
-
2023
- 2023-04-06 CN CN202320803346.XU patent/CN219882335U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219882335U (en) | Oversleeve fixing device for negative pressure isolator | |
| CN206738156U (en) | A kind of new No leakage roots blower sealing device | |
| CN212509500U (en) | Indium wire sealing structure | |
| CN211950828U (en) | Packing box structure with conveniently assembled and disassembled pump special for spunlace non-woven fabric | |
| CN216665885U (en) | Sealing assembly of plunger pump and plunger pump | |
| CN212455796U (en) | Wall bushing | |
| CN211550298U (en) | Tensioning wheel bearing seat structure of gang saw machine | |
| CN105171679B (en) | Method and tool for installing U seals on guide vane upper end covers of water turbine | |
| CN210240315U (en) | Flange linear bearing | |
| CN220828521U (en) | Inflatable mechanical sealing device | |
| CN213437240U (en) | High-pressure water-stopping knife sleeve | |
| CN217481104U (en) | Double-layer glass's gloves mounting structure | |
| CN207205208U (en) | A kind of continuous casting machine fan-shaped segment sensor guard | |
| CN118083108B (en) | Pre-insulated access door with quick opening assembly | |
| CN220882164U (en) | Quick assembly and disassembly tool for integrated mechanical seal | |
| CN212178173U (en) | Improved rotary air inlet pipe mounting structure | |
| CN214698466U (en) | Double-layer water pump sealing structure for sewage treatment pump | |
| CN212363866U (en) | Water hammer test testing machine for detecting leakage | |
| JPS6357879A (en) | Plunger pump | |
| CN220816826U (en) | Pipe flaw detection water retaining device | |
| CN216870322U (en) | Novel sealing structure of specific surface area analyzer | |
| CN209797909U (en) | Cylinder device for sake tank area of fermentation tank | |
| CN220249249U (en) | Anti-drop sealing flange structure suitable for pressure vessel is interior | |
| CN214304847U (en) | Stainless steel bearing convenient to installation is dismantled | |
| CN220354237U (en) | Screw hole sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |