CN219673277U - Sealing rubber ring of hemodialysis product - Google Patents
Sealing rubber ring of hemodialysis product Download PDFInfo
- Publication number
- CN219673277U CN219673277U CN202321239377.3U CN202321239377U CN219673277U CN 219673277 U CN219673277 U CN 219673277U CN 202321239377 U CN202321239377 U CN 202321239377U CN 219673277 U CN219673277 U CN 219673277U
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- CN
- China
- Prior art keywords
- ring
- collar
- clamping
- cover plate
- hemodialysis
- 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.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 53
- 229920001971 elastomer Polymers 0.000 title claims abstract description 30
- 238000001631 haemodialysis Methods 0.000 title claims abstract description 29
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 14
- 239000012528 membrane Substances 0.000 abstract description 13
- 229920002635 polyurethane Polymers 0.000 abstract description 13
- 239000004814 polyurethane Substances 0.000 abstract description 13
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 11
- 238000005728 strengthening Methods 0.000 description 8
- 238000005245 sintering Methods 0.000 description 7
- 229920003225 polyurethane elastomer Polymers 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001614 effect on membrane Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
Abstract
A sealing rubber ring of a hemodialysis product belongs to the technical field of sealing rubber structures of hemodialysis products. The clamping device comprises a collar, a clamping ring and a mounting ring, wherein the collar is arranged on one side of the mounting ring; the diameter of the collar is smaller than that of the mounting ring, the collar and the mounting ring are arranged at intervals, the clamping ring inclines from the mounting ring to the collar, and the clamping ring is connected with the mounting ring and the collar; the inner wall of the clamping ring is provided with a clamping bulge encircling the inner wall. The clamping ring is matched with the clamping bulge, so that the sealing effect of the sealing rubber ring is guaranteed, the glue filling effect is guaranteed, the sealing quality of polyurethane glue to membrane tows is further guaranteed, the glue filling amount is saved, and the appearance quality of a hemodialysis product after solidification is improved.
Description
Technical Field
A sealing rubber ring of a hemodialysis product belongs to the technical field of sealing rubber structures of hemodialysis products.
Background
Hemodialysis products such as dialyzers and the like, in the production process, the preassembling procedure is a core process, and the sintering process mainly comprises two modes of infrared sintering and aluminum foil sintering. The membrane wires may have problems of unfired membrane holes or deviation of single membrane wires after being sintered by an infrared sintering process, and various bad feedback such as blood leakage, blood hanging and the like appear in the treatment process in combination with the performance of a dialyzer product in clinic. Compared with the infrared sintering process, the aluminum foil sintering process has the advantages of good gathering effect on membrane wires, high membrane hole plugging rate and good clinical feedback.
The problem that the sealing rubber cover disclosed in the prior art exists is that it is mostly in a ring-shaped structure, one end is provided with a binding opening to fix membrane tows of hemodialysis products, the other end is correspondingly sleeved with the end part of a shell of the hemodialysis products, internal sealing of the hemodialysis products is achieved, however, after the products are filled with rubber, the sealing rubber ring and the shell are often not tight enough, the phenomenon that polyurethane rubber overflows from the contact part of the sealing rubber ring and the shell possibly occurs, the effect of the cured polyurethane rubber on end sealing is poor, the rubber overflows to the outer side of the shell, and the product quality is affected.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: overcomes the defects of the prior art, and provides the sealing rubber ring of the hemodialysis product, which has good sealing effect and improves the appearance quality of the hemodialysis product.
The technical scheme adopted for solving the technical problems is as follows: a sealing rubber ring of a hemodialysis product, which is characterized in that: the clamping device comprises a collar, a clamping ring and a mounting ring, wherein the collar is arranged on one side of the mounting ring; the clamping ring is connected with the mounting ring and the collar, the diameter of the collar is smaller than that of the mounting ring, and the clamping ring inclines from the mounting ring to the collar; the inner wall of the clamping ring is provided with a clamping bulge.
Utilize the chucking arch can block the outer wall of hemodialysis product shell, and the chucking ring of inwards slope can guarantee that the collar is installed behind the shell, can provide a pretightning force on the outer wall edge of shell, and then guarantee that the chucking arch can the block, seal the outer wall of shell, chucking ring and chucking arch mutually support, have guaranteed the sealed effect of sealing the rubber ring, guarantee the encapsulating effect and then guaranteed the sealing quality of polyurethane glue to the membrane silk bundle, practice thrift the encapsulating quantity to improve the appearance quality of hemodialysis product after the solidification.
Preferably, a cover plate is further arranged between the clamping ring and the collar, the cover plate is arranged around the collar, and the cover plate is connected with the collar and the clamping ring.
Further preferably, the cover plate is gradually and obliquely arranged away from the mounting ring along the direction of approaching the collar.
Because the cover plate is heated and can soften and collapse in the heating and curing process, the shape of polyurethane glue solidification can be possibly influenced, so that the inclination angle can ensure that the cover plate cannot collapse to one side of the connecting plate even if heated, and the quality after glue filling is further ensured.
Further preferably, the clamping ring is axially spaced from the cover plate, and the clamping ring is connected with the cover plate through a connecting plate.
Further preferably, the inner wall of the connecting plate is provided with an inner inclined boss, and the inner inclined boss gradually approaches the center of the ring along the direction from the clamping ring to the cover plate.
The inner inclined boss reduces unnecessary space in the rubber sealing ring, and can effectively reduce the dosage of polyurethane rubber.
Further preferably, a cover plate step is arranged at the connection part of the inner inclined boss and the inner wall of the cover plate, and the cover plate step is recessed towards the cover plate.
The cover plate step enables the polyurethane glue to be solidified to form a certain bulge on the end face of the shell, so that the sealing effect of the polyurethane glue on the shell can be guaranteed, and the excessive polyurethane glue can be conveniently cut off in a subsequent cutting procedure.
Further preferably, a clamping reinforcing rib is arranged between the clamping ring and the outer wall of the connecting plate.
Further preferably, a port reinforcing rib is arranged between the cover plate and the outer wall of the collar.
Preferably, the other side of the mounting ring is provided with a ring flanging. The clamping of the sealing rubber ring is convenient when the sealing rubber ring is dismounted later.
Compared with the prior art, the utility model has the following beneficial effects: utilize the chucking arch can block the outer wall of hemodialysis product shell, and the chucking ring of inwards slope can guarantee that the collar is installed behind the shell, can provide a pretightning force on the outer wall edge of shell, and then guarantee the chucking arch can the block, seal the outer wall of shell, mutually support, guaranteed the sealed effect of sealing the rubber ring, guaranteed the encapsulating effect and then guaranteed the sealing quality of polyurethane glue to the membrane silk bundle, practice thrift the encapsulating quantity to improve the appearance quality of hemodialysis product after the solidification.
Drawings
Fig. 1 is a schematic diagram of a seal ring structure.
Fig. 2 is a top view of the sealing ring.
Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.
Fig. 4 is an enlarged view of the structure at B in fig. 3.
Fig. 5 is a schematic view of the structure of the housing.
Fig. 6 is an enlarged view of the structure at C in fig. 5.
Wherein, 1, a collar; 2. mouth reinforcing ribs; 3. a cover plate; 4. a connecting plate; 5. clamping the reinforcing ribs; 6. a mounting ring; 7. a turn-up edge is formed; 8. a clamping ring; 9. a housing; 401. an inner inclined boss; 402. a cover plate step; 801. clamping the bulge; 901. the shell is turned outward.
Detailed Description
The utility model is further described below with reference to fig. 1 to 6.
Referring to fig. 1 to 6: a sealing rubber ring of hemodialysis product is sleeved at one end of the shell 9.
Referring to fig. 1 to 4: the sealing rubber ring comprises a binding ring 1, a cover plate 3, a connecting plate 4, a clamping ring 8, a mounting ring 6 and a ring flanging 7; the cover plate 3 is arranged around the edge of the outer wall of one end of the collar 1, the clamping ring 8 is arranged on one side of the cover plate 3 close to the collar 1, one side edge of the clamping ring 8 is inclined to the cover plate 3, the clamping ring 8 is connected with the cover plate 3 through the connecting plate 4, and the connecting plate 4 surrounds the edge of the cover plate 3; the other side edge of the clamping ring 8 is provided with a mounting ring 6, one side edge of the mounting ring 6 surrounds the edge of the clamping ring 8, and the other side edge of the mounting ring 6 is provided with a ring flanging 7. Finally, a sealing rubber ring structure with sequentially increased inner diameters of the bundle mouth ring 1, the cover plate 3, the connecting plate 4, the clamping ring 8 and the mounting ring 6 is formed.
Simultaneously, be equipped with a mouthful strengthening rib 2 between restraint mouthful ring 1 outer wall and the apron 3, be equipped with chucking strengthening rib 5 between connecting plate 4 and the chucking ring 8, mouthful strengthening rib 2 is because guarantee to restraint mouthful ring 1 and can tighten the membrane silk bundle and be out of shape, guarantees the shape of apron 3 simultaneously, and the chucking strengthening rib 5 can guarantee the relative position relation between clamping ring 8 and the connecting plate 4, guarantees clamping ring 8 chucking shell 9.
Referring to fig. 3 to 4: the mounting ring 6 is parallel to the outer wall of the connecting plate 4, the inner diameter of the ring of the mounting ring 6 is larger than the outer diameter of the ring of the connecting plate 4, and one side, close to the connecting plate 4, of the mounting ring 6 inclines to the connecting plate 4 to form a clamping ring 8. In addition, at the position where the clamping ring 8 is connected to the connection plate 4, the inner wall thereof protrudes toward the ring center, and a clamping projection 801 is formed around the inner wall. The inner wall of the connecting plate 4 gradually bulges towards the center of the ring along the direction close to the cover plate 3, an inner inclined boss 401 is formed around the inner wall, one side of the inner inclined boss 401 close to the inner wall of the cover plate 3 is provided with a cover plate step 402, and the cover plate step 402 is sunken towards the inner wall of the cover plate 3. In addition, connecting plate 4 and restraint mouth ring 1 axial interval set up, make apron 3 be equipped with along the direction that is close to restraint mouth ring 1 one end slope inclination (3 °), because of the heating solidification in-process, apron 3 is heated and can soften, collapse, probably can influence the shape that polyurethane glued to solidify, consequently this inclination can guarantee even be heated apron 3 also can not appear collapsing to connecting plate 4 one side. In addition, chucking strengthening rib 5 can be when a plurality of rubber sealing rings stack with mouthful strengthening rib 2, avoids laminating too tightly, and the rubber sealing lid can not pile up each other when the material loading in the vibration dish, makes things convenient for robotic arm to take.
Referring to fig. 5 to 6: the end of the outer shell 9 is opened, and the end is provided with a shell flanging 901 corresponding to the clamping protrusion 801, after the outer shell 9 is provided with a sealing rubber ring, the shell flanging 901 is arranged between the clamping protrusion 801 and the inner inclined boss 401, so that a sealing structure similar to labyrinth sealing is realized, and the sealing effect is ensured. The inner inclined boss 401 inclines towards the center, so that the inner space of the sealing rubber ring can be effectively reduced, the rubber injection amount is reduced, and polyurethane rubber is saved. The cover plate step 402 can enable the solidified polyurethane glue to form a polyurethane layer protruding slightly from the end face of the shell 9 after glue injection and solidification, the cutting ensures that the polyurethane glue can fully fill the end part of the whole shell 9, the cut section is flat, and the sealing effect of the polyurethane glue is ensured.
During installation, a sealing ring with the diameter difference between the collar 1 and the membrane tows being within 3mm is selected, the membrane tows are integrally bound in the ring, single membrane tows are prevented from deviating, the membrane yarn divergence proportion of the subsequent process (sintering and glue injection) is reduced, the semi-finished product qualification rate is improved, the mounting ring 6 is sleeved outside the shell 6, then the sealing ring is pressed to enable the clamping ring 8 and the clamping protrusion 801 to be clamped outside the shell flanging 9, the shell flanging 9 is located between the clamping protrusion 801 and the inner inclined boss 401, the clamping protrusion 801 is firmly clamped with the main flanging 9 by utilizing the inward inclined characteristic of the clamping ring 8, installation is completed, the sealing structure is softened even in a heating state, the outer wall of the locking shell 9 can be maintained by utilizing the inward inclined characteristic of the clamping ring 8 and interference fit with the shell 9, and polyurethane glue leakage is avoided. The mouth strengthening rib 2 cooperates the apron 3 of slope can guarantee to restraint mouthful ring 1 heating state's form, and chucking strengthening rib 5 can further guarantee the chucking effect of chucking protruding 801. After installation, aluminum foil sealing is pasted, heating is completed, then the sealing rubber ring can be removed by removing the flanging of the main ring of the tool clamp, the use is convenient, the sealing rubber ring is stable at high temperature, the sealing effect is good, the amount of polyurethane rubber is reduced by the inner inclined boss 401, the sealing effect of the polyurethane rubber can be ensured by the cover plate step 402, the quality of hemodialysis products is greatly improved, and the cost is saved.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims (9)
1. A sealing rubber ring of a hemodialysis product, which is characterized in that: the clamping device comprises a collar (1), a clamping ring (8) and a mounting ring (6), wherein the collar (1) is arranged on one side of the mounting ring (6), the clamping ring (8) is arranged between the collar (1) and the mounting ring (6), and the collar (1), the clamping ring (8) and the mounting ring (6) are sequentially connected; the collar (1) and the mounting ring (6) are arranged at intervals, the clamping ring (8) is connected with the mounting ring (6) and the collar (1), the diameter of the collar (1) is smaller than that of the mounting ring (6), and the clamping ring (8) inclines from the mounting ring (6) to the collar (1); the inner wall of the clamping ring (8) is provided with a clamping protrusion (801).
2. The sealing ring for hemodialysis products of claim 1, wherein: and a cover plate (3) is further arranged between the clamping ring (8) and the collar (1), the cover plate (3) is arranged around the collar (1), and the cover plate (3) is connected with the collar (1) and the clamping ring (8).
3. The sealing ring for hemodialysis products of claim 2, wherein: the cover plate (3) is gradually and obliquely arranged away from the mounting ring (6) along the direction of approaching the collar (1).
4. The sealing ring for hemodialysis products of claim 2, wherein: the clamping rings (8) are axially arranged at intervals with the cover plate (3), and the clamping rings (8) are connected with the cover plate (3) through the connecting plates (4).
5. The sealing ring for hemodialysis product of claim 4, wherein: the inner wall of the connecting plate (4) is provided with an inner inclined boss (401), and the inner inclined boss (401) gradually approaches the center of the ring along the direction from the clamping ring (8) to the cover plate (3).
6. The hemodialysis product of claim 5, wherein: the inner inclined boss (401) is provided with a cover plate step (402) at the connection part of the inner inclined boss and the inner wall of the cover plate (3), and the cover plate step (402) is sunken towards the cover plate (3).
7. The sealing ring for hemodialysis product of claim 4, wherein: and a clamping reinforcing rib (5) is arranged between the clamping ring (8) and the outer wall of the connecting plate (4).
8. The sealing ring for hemodialysis products of claim 2, wherein: an opening reinforcing rib (2) is arranged between the cover plate (3) and the outer wall of the collar (1).
9. The sealing ring for hemodialysis products of claim 1, wherein: the other side of the mounting ring (6) is provided with a ring flanging (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239377.3U CN219673277U (en) | 2023-05-22 | 2023-05-22 | Sealing rubber ring of hemodialysis product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321239377.3U CN219673277U (en) | 2023-05-22 | 2023-05-22 | Sealing rubber ring of hemodialysis product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673277U true CN219673277U (en) | 2023-09-12 |
Family
ID=87894651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321239377.3U Active CN219673277U (en) | 2023-05-22 | 2023-05-22 | Sealing rubber ring of hemodialysis product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219673277U (en) |
-
2023
- 2023-05-22 CN CN202321239377.3U patent/CN219673277U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |