CN110265822B - Via connector - Google Patents
Via connector Download PDFInfo
- Publication number
- CN110265822B CN110265822B CN201910493217.3A CN201910493217A CN110265822B CN 110265822 B CN110265822 B CN 110265822B CN 201910493217 A CN201910493217 A CN 201910493217A CN 110265822 B CN110265822 B CN 110265822B
- Authority
- CN
- China
- Prior art keywords
- ring
- connecting pipe
- main connecting
- locking
- wall
- 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
- 230000000670 limiting effect Effects 0.000 claims abstract description 35
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 8
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008719 thickening Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a via hole connector, which comprises a main connecting pipe, a compression ring and a hose connector; the first end of the main connecting pipe is provided with an error-proof installation component, and the inner wall of the end is provided with a first annular limiting groove; the outer wall of the compression ring is provided with a limiting step, the compression ring is rotatably matched with the central hole of the main connecting pipe, and the limiting step is matched with the first annular limiting groove; the hose connector comprises a fitting, a first locking half ring and a second locking half ring; the assembly sleeve is sleeved at the second end of the main connecting pipe; the first locking semi-ring is fixed at the end part of the assembly set, the second locking semi-ring is detachably connected with the first locking semi-ring, and a hose lock hole which is in butt joint with the central hole of the main connecting pipe is formed between the first locking semi-ring and the second locking semi-ring. The invention saves the assembly cost between the cable and the hose and also improves the assembly efficiency.
Description
Technical Field
The present invention relates to a mechanical connector, and more particularly to a via connector.
Background
The via connectors are now very widely used, both passenger and bus, and their body shadow appears on the vehicle.
The existing via connector has the following problems in use: 1. the via hole connector cannot lock the hose, the connection between the hose and the cable needs a heat shrinkage pipe, the heat shrinkage pipe needs to be subjected to high-temperature treatment when the heat shrinkage pipe is used, the cable is easy to damage in the treatment process, and meanwhile, labor is wasted and the time is long; 2. the fool-proof design is not adopted, so that the via connector is easy to make mistakes when being installed; 3. even with fool-proof design, the cable cannot rotate relative to the via connector after installation, resulting in the cable being vulnerable to the shielding layer of the cable when the cable is connected with the terminal at an angle of adjustment. In view of the foregoing, there is room for improvement in the prior art via connectors.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a via connector.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a via connector, characterized by: comprises a main connecting pipe, a compression ring and a hose connector;
The first end of the main connecting pipe is provided with an error-proof installation component, and the inner wall of the end is provided with a first annular limiting groove;
the outer wall of the compression ring is provided with a limiting step, the compression ring is rotatably matched with the central hole of the main connecting pipe, and the limiting step is matched with the first annular limiting groove;
The hose connector comprises a fitting, a first locking half ring and a second locking half ring; the assembly sleeve is sleeved at the second end of the main connecting pipe; the first locking semi-ring is fixed at the end part of the assembly set, the second locking semi-ring is detachably connected with the first locking semi-ring, and a hose lock hole which is in butt joint with the central hole of the main connecting pipe is formed between the first locking semi-ring and the second locking semi-ring.
Preferably, the error-proof mounting component is a plurality of plug-in foolproof key positions which are uniformly arranged around the central axis of the main connecting pipe in a circumference manner, wherein the size of one plug-in foolproof key position is larger than that of the other plug-in foolproof key positions.
Preferably, the outer wall of the main connecting pipe is provided with a connecting lug, and the connecting lug is provided with a connecting hole.
Preferably, the first end wall of the main connecting pipe is provided with a first annular groove, and the first annular groove is provided with a first sealing element.
Preferably, a second annular limiting groove is formed in the inner wall of the second end of the main connecting pipe, and a second sealing piece is arranged in the second limiting groove.
Preferably, a thickening area is formed between the first annular limiting groove and the second annular limiting groove, a plurality of grooves are formed in the inner wall of the thickening area, and a reinforcing rib is formed between every two adjacent grooves.
Preferably, a second annular groove is formed in the outer wall of the compression ring, and a contact finger spring is arranged in the second annular groove.
Preferably, the outer wall of the main connecting pipe is provided with a clamping block, and the assembly is provided with a bayonet matched with the clamping block.
Preferably, the end walls at two ends of the first locking semi-ring are provided with buckling grooves, and the end walls at two ends of the second locking semi-ring are provided with clamping hooks matched with the buckling grooves.
Preferably, the second locking semi-ring is provided with an axial locking piece, and the outer wall of the main connecting pipe is provided with an axial locking piece for locking the axial locking piece.
Compared with the prior art, the invention has the advantages that: 1. the installation is convenient, the cost is saved, the cost of the heat shrinkage pipe and the heat gun is reduced, and the problem of cable damage caused when the heat gun heats the cable and the heat sink pipe is avoided; 2. the anti-misplacement mounting assembly is provided for preventing the misplacement of the workers during the mounting; 3. after the installation is finished, the cable can still rotate 360 degrees, so that the effective connection of the wiring end of the cable and the wiring terminal is facilitated.
Drawings
FIG. 1 is a sectional view of a via connector, a cable and a hose according to the present embodiment;
FIG. 2 is an exploded view of the via connector according to the present embodiment;
Fig. 3 is a schematic view of a main connecting pipe according to the present embodiment.
Detailed Description
The via connector of the present invention is further described with reference to fig. 1-3.
A via connector comprising a main connection tube 30, a pressure ring 50 and a hose connector 40;
the first end of the main connecting pipe 30 is provided with an error-proof installation component 36, and the inner wall of the end is provided with a first annular limit groove 33; in this embodiment, the end of the main connecting pipe corresponding to the mounting box body is a first end, and the end facing away from the box body is a second end.
The outer wall of the pressing ring 50 is provided with a limiting step 53, the pressing ring 50 can be rotatably matched with the central hole of the main connecting pipe 30, and the limiting step 53 is matched with the first annular limiting groove 33;
The hose connector 40 includes a mounting sleeve 42, a first lock half 41 and a second lock half 43; the assembling sleeve 42 is sleeved at the second end of the main connecting pipe 30, namely, the second end of the main connecting pipe is sleeved into the main connecting pipe and assembled with the main connecting pipe; the inner walls of the first locking half ring 41 and the second locking half ring 43 are provided with a clamping ring 412, the first locking half ring 41 is positioned at the end part of the assembling sleeve 42, namely, is integrally formed with the assembling sleeve 42, the second locking half ring 43 is detachably connected with the first locking half ring 41, and a hose locking hole coaxially butted with the central hole of the main connecting pipe 30 is formed between the first locking half ring 41 and the second locking half ring 43.
When the cable 10 is assembled, the cable is arranged at one end close to the connection of the cable 10 and the wiring terminal, the shielding layer of the cable 10 is turned outwards, the pressing ring 50 is pressed and deformed by a tool, the outward turned shielding layer is pressed on the outer wall of the cable 10 by the pressing ring 50, and meanwhile, the pressing ring 50 is fixed with the cable 10; the first end of the main connection pipe 30 is connected to the wall of the box, while the terminal 11 of the cable 10 extends into the box through an opening in the wall of the box to be connected to a terminal in the box. Because the pressing ring 50 is positioned in the central hole of the main connecting pipe 30 and the pressing ring 50 is rotatably arranged relative to the main connecting pipe 30, when the wiring terminal 11 of the cable 10 is connected with the wiring terminal and the angle is required to be rotated and adjusted, the cable 10 can directly drive the pressing ring 50 to rotate in the main connecting pipe 30 so as to be adjusted to a proper position and then be connected with the wiring terminal; meanwhile, due to the cooperation of the first annular limiting groove 33 and the limiting step, when the cable 10 is pulled back to the box body, the limiting step is propped against the side wall of the first annular limiting groove 33, so that the axial limiting effect is achieved, the problem that the cable 10 is pulled out of the box body is avoided, and the connection of the wiring terminal 11 of the cable 10 and the wiring terminal in the box body is facilitated. When the hose 20 is assembled, the second locking half ring 43 is disassembled, one end of the hose 20 is extended into the first locking half ring 41, then the second locking half ring is assembled on the first locking half ring 41, and the clamping rings 412 in the first locking half ring 41 and the second locking half ring 43 are clamped in the grooves 21 of the hose 20, so that the hose 20 is connected with the invention, the operation is simple, the use of a hot air gun and a heat shrinking tube is saved, the cost and the time consumption of manpower are saved, and meanwhile, the problem that the cable 10 is damaged due to high temperature is avoided. The setting of the error-proof mounting assembly 36 can facilitate the direct correspondence of the assembly angle of the main connecting pipe 30 on the box body, avoid the problem of assembly error, and improve the assembly efficiency.
The present embodiment is further configured to: the error-proof mounting assembly 36 is eight plug-in foolproof key positions which are uniformly arranged around the central axis of the main connecting pipe 30 in a circumference manner, and the eight plug-in foolproof key positions are formed on the inner wall of the main connecting pipe 30, namely in the first annular limiting groove 33, wherein one of the plug-in foolproof key positions 361 is larger than the rest of plug-in foolproof key positions in size, and the rest seven plug-in foolproof key positions are identical in size. The plug-in fool-proof key 361 with the largest size is used as a main assembly angle mark, so that the assembly angle of the main connecting pipe 30 and the box body can be effectively corresponding, and the main connecting pipe 30 and the box body can be assembled conveniently.
The invention is further provided with: the outer wall of the main connecting pipe 30 is provided with two connecting lugs 31 in a forming mode, the two connecting lugs 31 are arranged on the main connecting pipe 30 in a central symmetry mode, the two connecting lugs 31 are located at the first end of the main connecting pipe, the connecting lugs 31 are provided with connecting holes 311, and the connecting holes 311 penetrate through bolts to realize assembly with the box body.
The present embodiment is further configured to: the first end wall of the main connecting pipe 30 is provided with a first annular groove 32, a first sealing element 40 is assembled in the first annular groove 32, the first sealing element 40 is a silicone rubber O-shaped sealing ring, the first sealing element can play a role in preventing water and dust, and can play a role in isolating the direct contact between the main connecting pipe and the box body, so that the problem of mutual abrasion caused by the direct contact between metals is avoided, and the protection effect is achieved.
The present embodiment is further configured to: the second end inner wall of the main connecting pipe 30 is provided with a second annular limiting groove 37, and a second sealing element 60 is arranged in the second annular limiting groove 37. The second sealing element 60 is an annular sealing ring, the second sealing element 60 can achieve sealing effect between the main connecting pipe and the cable 10, buffer effect can be achieved, and the cable 10 is prevented from being in direct contact with the inner wall of the main connecting pipe, so that protection effect is achieved.
The present embodiment is further configured to: a thickening area is formed between the first annular limiting groove 33 and the second annular limiting groove 37, a plurality of grooves are formed in the inner wall of the thickening area, and a reinforcing rib 38 is formed between every two adjacent grooves. This arrangement can promote the structural strength of the main connection pipe, and facilitate the formation of the first annular limiting groove 33 and the second annular limiting groove 37, enabling the assembly of the compression ring 50 and the second seal 60 within the main connection pipe 30.
The present embodiment is further configured to: the outer wall of the pressing ring 50 is provided with a second annular groove 51, and a contact finger spring 52 is arranged in the second annular groove 51. The finger spring 52 can contact the main connecting pipe 30 to conduct the current of the shielding layer, and also has buffering and positioning effects between the pressing ring 50 and the main connecting pipe.
The present embodiment is further configured to: the outer wall of the main connecting pipe 30 is provided with a clamping block 34, and the side wall of the assembly sleeve 42 is provided with a bayonet 421 matched with the clamping block 34. When the assembly sleeve 42 is sleeved on the second end of the main connecting pipe 30, the bayonet 421 is clamped on the clamping block 34, so that the axial and circumferential positioning between the assembly sleeve 42 and the main connecting pipe 30 is realized, and the positioning of the hose 20 and the main connecting pipe 30 is facilitated.
The present embodiment is further configured to: the upper surface of the clamping block 34 is an inclined guiding surface, namely a triangular block, and the inner wall of the assembly group 42 is provided with a guiding groove 43. When the assembly kit 42 is assembled to the main connecting pipe 30, the guide groove 43 is first fitted to the clamping block 34, and then moves towards the main connecting pipe 30 along with the assembly kit 42, so that the clamping block 34 is stably fitted into the bayonet 421 under the guiding action of the guide groove, and the snap fit of the assembly kit 42 and the main connecting pipe 30 is realized, thereby facilitating the assembly of the assembly kit on the main connecting pipe.
The present embodiment is further configured to: the two end walls of the first locking half ring 41 are provided with buckling slots 411, and the two end walls of the second locking half ring 43 are provided with hooks 431 matched with the buckling slots 411. With this arrangement, a detachable assembly between the first and second lock half rings 41, 43 can be achieved.
The present embodiment is further configured to: the second locking semi-ring 43 is provided with an axial locking piece 432, the axial locking piece is provided with an axial locking opening 4321, and the outer wall of the main connecting pipe 30 is provided with an axial locking piece 35 for locking the axial locking opening. The locking tab 432 further enhances the axial retention strength between the second locking half ring 43 and the fitting sleeve 42 and the main connection tube to increase the tensile strength of the hose 20 attached to the fitting groove.
Unless specifically stated otherwise, in the present invention, if there are terms such as "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional or positional relationship indicated on the drawings are merely for convenience of describing the present invention and simplifying the description, and not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional or positional relationship in the present invention are merely for exemplary illustration and not to be construed as limitations of the present patent, and it is possible for those skilled in the art to combine the drawings and understand the specific meaning of the above terms according to circumstances.
Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (10)
1. A via connector, characterized by: comprises a main connecting pipe, a compression ring and a hose connector;
The first end of the main connecting pipe is provided with an error-proof installation component, and the inner wall of the end is provided with a first annular limiting groove;
the outer wall of the compression ring is provided with a limiting step, the compression ring is rotatably matched with the central hole of the main connecting pipe, and the limiting step is matched with the first annular limiting groove;
The hose connector comprises a fitting, a first locking half ring and a second locking half ring; the assembly sleeve is sleeved at the second end of the main connecting pipe; the first locking semi-ring is fixed at the end part of the assembly set, the second locking semi-ring is detachably connected with the first locking semi-ring, and a hose lock hole which is in butt joint with the central hole of the main connecting pipe is formed between the first locking semi-ring and the second locking semi-ring.
2. The via connector of claim 1, wherein: the error-proof installation component is a plurality of plug-in type fool-proof key positions which are uniformly arranged around the central axis of the main connecting pipe in a circumference mode, and the size of one plug-in type fool-proof key position is larger than that of the other plug-in type fool-proof key positions.
3. The via connector of claim 1, wherein: the outer wall of the main connecting pipe is provided with a connecting lug which is provided with a connecting hole.
4. The via connector of claim 1, wherein: the first end wall of the main connecting pipe is provided with a first annular groove, and a first sealing element is assembled in the first annular groove.
5. The via connector of claim 1, wherein: the inner wall of the second end of the main connecting pipe is provided with a second annular limiting groove, and a second sealing piece is arranged in the second annular limiting groove.
6. The via connector of claim 5, wherein: a thickening area is formed between the first annular limiting groove and the second annular limiting groove, a plurality of grooves are formed in the inner wall of the thickening area, and reinforcing ribs are formed between every two adjacent grooves.
7. The via connector of claim 1, wherein: the outer wall of the compression ring is provided with a second annular groove, and a contact finger spring is arranged in the second annular groove.
8. The via connector of claim 1, wherein: the outer wall of the main connecting pipe is provided with a clamping block, and the assembly is provided with a bayonet matched with the clamping block.
9. The via connector of claim 1, wherein: the two end walls of the first locking semi-ring are provided with buckling grooves, and the two end walls of the second locking semi-ring are provided with clamping hooks matched with the buckling grooves.
10. The via connector of claim 1, wherein: the second locking semi-ring is provided with an axial locking piece, and the outer wall of the main connecting pipe is provided with an axial locking piece for locking the axial locking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493217.3A CN110265822B (en) | 2019-06-06 | 2019-06-06 | Via connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493217.3A CN110265822B (en) | 2019-06-06 | 2019-06-06 | Via connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110265822A CN110265822A (en) | 2019-09-20 |
| CN110265822B true CN110265822B (en) | 2024-04-30 |
Family
ID=67917215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910493217.3A Active CN110265822B (en) | 2019-06-06 | 2019-06-06 | Via connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110265822B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599089A (en) * | 2018-06-20 | 2018-09-28 | 嘉兴市盛央电气有限公司 | Push-in electromagnetic shielded cable connector |
| CN109546609A (en) * | 2018-10-29 | 2019-03-29 | 嘉兴市盛央电气有限公司 | The push-in electromagnetic compatibility connector of locking |
| CN209981574U (en) * | 2019-06-06 | 2020-01-21 | 嘉兴市盛央电气有限公司 | Through-hole connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574145B (en) * | 2017-03-08 | 2021-06-29 | 康普技术有限责任公司 | Coaxial connector for corrugated cable |
-
2019
- 2019-06-06 CN CN201910493217.3A patent/CN110265822B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599089A (en) * | 2018-06-20 | 2018-09-28 | 嘉兴市盛央电气有限公司 | Push-in electromagnetic shielded cable connector |
| CN109546609A (en) * | 2018-10-29 | 2019-03-29 | 嘉兴市盛央电气有限公司 | The push-in electromagnetic compatibility connector of locking |
| CN209981574U (en) * | 2019-06-06 | 2020-01-21 | 嘉兴市盛央电气有限公司 | Through-hole connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110265822A (en) | 2019-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180120517A1 (en) | Floating adjustable sealing mechanism and connector using same | |
| CN110265822B (en) | Via connector | |
| CN107768869B (en) | Binding post and photovoltaic module | |
| CN220249261U (en) | Multipurpose pipeline quick connector | |
| CN209981574U (en) | Through-hole connector | |
| CN203880290U (en) | Small-caliber quick pipeline connecting connector | |
| EP1741967B1 (en) | Quick-coupling device for motor vehicle ducts | |
| CN113028179A (en) | Household appliance pipeline butt joint private-dismantling-prevention device, gas stove and pipeline butt joint dismantling method | |
| CN210344646U (en) | Pipeline connecting structure | |
| CN108591654B (en) | Quick joint for cooling pipeline | |
| CN214146981U (en) | Quick connector for pipeline | |
| CN219997348U (en) | Waterproof optical fiber connection adapter | |
| CN209977484U (en) | Stainless steel explosion-proof flexible connection pipe with strong solidity | |
| CN210317454U (en) | Exhaust pipe group, exhaust device and vehicle | |
| CN215807026U (en) | Locking structure of pipeline connector and quick pipeline connector | |
| JP6792956B2 (en) | Pipe fitting assembly and rotation stopper for pipe fittings | |
| CN112226577A (en) | A guide structure and insert barrel subassembly for barrel is inserted in installation | |
| CN217302063U (en) | Optical cable protection pipe body connecting device | |
| CN110752468A (en) | Maintainable cluster type coaxial electric connector | |
| CN219933318U (en) | Plug connector, connector assembly, thermal management system and vehicle | |
| CN219120743U (en) | Exhaust pipe fixing device | |
| CN217063132U (en) | Cable protection device | |
| CN218914119U (en) | Pipeline quick connector, battery cooling system and electric automobile | |
| CN216975071U (en) | Pipeline grafting structure and air inlet pipeline | |
| CN218378239U (en) | Rotary clamping type joint assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 1,2,3 / F, workshop 4, 278, Shibali East Street, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province, 314000 Applicant after: Jiaxing Shengyang Electric Co.,Ltd. Address before: 1,2,3 / F, workshop 4, 278, Shibali East Street, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province, 314000 Applicant before: JIAXING SHENGYANG ELECTRIC Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |