CN220138855U - Waterproof connector - Google Patents
Waterproof connector Download PDFInfo
- Publication number
- CN220138855U CN220138855U CN202321622130.XU CN202321622130U CN220138855U CN 220138855 U CN220138855 U CN 220138855U CN 202321622130 U CN202321622130 U CN 202321622130U CN 220138855 U CN220138855 U CN 220138855U
- Authority
- CN
- China
- Prior art keywords
- protective shell
- connector
- close
- annular
- shell
- 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
- 230000001681 protective effect Effects 0.000 claims abstract description 100
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 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
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model relates to the technical field of connector manufacturing, and discloses a waterproof connector which comprises a first protective shell and a second protective shell, wherein an annular slot is formed in one side, close to the second protective shell, of the first protective shell, locking mechanisms are embedded in the positions, close to the second protective shell, of the upper end face and the lower end face of the first protective shell, the two locking mechanisms comprise V-shaped strips, the two V-shaped strips are hinged in the first protective shell at the middle positions, and a second tension spring is fixedly arranged between one side of the two V-shaped strips and the first protective shell. According to the utility model, the self-locking mechanism is triggered when the connector head and the connector seat are mutually clamped, and the locking mechanism is triggered when the annular cutting is inserted into the annular slot, so that double clamping and fixing are realized, the connector head and the connector seat can be more firmly connected and fixed together, water inflow inside the connector is prevented from being affected by damp due to disconnection of the connector, and the waterproofness and the fixing firmness of the connector are increased.
Description
Technical Field
The utility model relates to the technical field of connector manufacturing, in particular to a waterproof connector.
Background
Connectors, also known as connectors, plugs and sockets, are generally referred to as electrical connectors, i.e. devices that connect two active devices, and transmit electrical current or signals, and the robustness of the connection between the connector header and the connector holder can affect the performance of the connector to some extent, with a fixedly secured connector effectively protecting the safety of its connection to a circuit or signal source.
Most of the existing connectors are formed by sleeving and fixing a connector head and a connector seat together, and when the connector is used, the connector is accidentally touched or pulled by external force, so that the connector head and the connector seat are possibly loosened, and the gap between the connector head and the connector seat is affected by moisture or water to damage the connector, so that poor contact of connected current or signals occurs, and the signals or currents cannot be well transmitted.
Accordingly, a waterproof connector is provided by those skilled in the art to solve the problems set forth in the background art.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a waterproof connector, which is characterized in that a locking mechanism and a self-locking mechanism are arranged, when a connector head and a connector seat are clamped with each other, the self-locking mechanism is triggered, a movable block drives an arc plate to press a first rubber ring into an annular groove when moving, so that the connector is fixed, meanwhile, the annular insert is inserted into an annular slot, the locking mechanism is triggered, a clamping block is clamped into the clamping groove, double clamping fixation is realized, the connector head and the connector seat can be more firmly connected together, the connector is prevented from being broken to cause water inflow in the connector when in use, the waterproofness and the fixation firmness of the connector are increased, a second tension spring is inserted into the annular slot through the annular insert to rotationally squeeze a V-shaped strip, a clamping block at the lower end of the V-shaped strip is clamped into the clamping groove through the tension of the annular insert, meanwhile, the connector seat extrudes the movable block to drive the arc plate to rotationally squeeze the first rubber ring, the first rubber ring is extruded into the annular groove, the connector head is directly pushed into the clamping groove when being installed, the connector head is pulled into the direction of the connector head, the connector head is pulled out of the connector seat when the connector is pulled out of the connector seat, and the connector is conveniently and the connector is quickly removed when the connector is pulled out of the connector seat from the connector seat when in use.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waterproof connector, includes first protective housing and second protective housing, first protective housing is close to second protective housing one side and has seted up annular slot, terminal surface is close to second protective housing position about the first protective housing and all embeds and be provided with locking mechanism, two locking mechanism all includes V-arrangement strip, two V-arrangement strip leans on intermediate position all to articulate and sets up in first protective housing inside, two V-arrangement strip one side is all fixed to be provided with second tension spring in the position between first protective housing, two terminal surface is kept away from second tension spring one side and is articulated to be provided with the fixture block under the V-arrangement strip, second protective housing is close to first protective housing one side and is fixedly provided with annular cutting, annular cutting joint sets up in annular slot inside, terminal surface is close to two fixture blocks and all has seted up the draw-in groove about the annular cutting, two fixture blocks respectively the joint sets up in two draw-in groove insidely, first protective housing is kept away from first protective housing one side position and all embeds and is provided with self-locking mechanism, two self-locking mechanism all includes strip, two articulated first protective housing one side is all set up in the first protective housing, two is close to first protective housing one side is provided with the first protective housing one side is articulated to be provided with a connecting the opposite, two side is provided with the first protective housing, and is close to first protective housing one side is provided with the opposite, and is provided with the connector and is connected to first protective housing, and is provided with a left side connector, and is provided with opposite side connector, an annular groove is formed in the outer side of the connector seat at one end away from the second protective shell;
through the technical scheme, the connector seat is clamped and close to the connector head when the connector seat is used, the second protective shell is closed to the first protective shell, the movable block is pushed to move to the opposite side when the connector seat enters, the movable block moves to drive the strip-shaped plate to rotate, the arc plate moves to the opposite side to extrude the first rubber ring, the first rubber ring is extruded into the annular groove, the connector seat is firmly connected with the connector head, meanwhile, the annular cutting is clamped and close to the annular slot, the annular cutting pushes the clamping block to move to the opposite side, the clamping block is clamped into the clamping groove when the annular cutting completely enters the annular cutting, the connection relation between the connector seat and the connector head is enhanced, the connector seat is tightly attached to the connector head, the V-shaped strip is stirred inwards when the connector needs to be detached, the clamping block is led to be removed from the clamping groove, and the second protective shell is pulled out from the first protective shell.
Further, the upper end surfaces of the two V-shaped strips are both hinged with pressing plates;
through above-mentioned technical scheme, pressing plate can make things convenient for V-arrangement strip to rotate down to press, makes the fixture block remove from the draw-in groove is inside, and first protective housing and second protective housing of being convenient for install and dismantle.
Further, a second rubber ring is fixedly arranged on one side, close to the second protective shell, of the first protective shell;
through above-mentioned technical scheme, second rubber circle and third rubber circle mutually support, and close contact increases the water-proof effects.
Further, a third rubber ring is fixedly arranged on the inner wall of one side of the second protective shell far away from the first protective shell;
through above-mentioned technical scheme, third rubber circle and second rubber circle contact each other, closely laminate, can effectively strengthen the seal of connector, increase the water-proof effects.
Further, the protection sleeves are fixedly arranged at the positions of one side, opposite to the connector head, of the connector base;
through above-mentioned technical scheme, the protective sheath is convenient for connect electric wire and connector holder and connector head, prevents that the electric wire from crooked for a long time from leading to the electric wire fracture.
Further, the first protective shell and the second protective shell are both made of a high-strength flame-retardant PC material;
through the technical scheme, the PC material has good electrical insulation, extensibility and strength, good flame retardance, waterproof performance and corrosion resistance, and can effectively protect the connector with safe use.
Further, the cross section size of the first rubber ring is larger than that of the annular groove;
through above-mentioned technical scheme, the arc of being convenient for extrudes first rubber circle, makes inside partial first rubber circle entering ring channel, can effectively increase fastness and leakproofness.
The utility model has the following beneficial effects:
1. according to the waterproof connector provided by the utility model, the locking mechanism and the self-locking mechanism are arranged, when the connector head and the connector seat are clamped with each other, the self-locking mechanism is triggered, the arc plate is driven to press the first rubber ring into the annular groove when the movable block moves, so that the connector is fixed, meanwhile, the locking mechanism is triggered when the annular cutting is inserted into the annular slot, the clamping block is clamped into the clamping groove, double clamping fixation is realized, the connector head and the connector seat can be more firmly connected together, water inflow inside the connector caused by disconnection of the connector when the connector is used is avoided, and the waterproof property and the fixing firmness of the connector are improved.
2. According to the waterproof connector provided by the utility model, the V-shaped strip is inserted into the annular slot through the annular insert strip to rotate and extrude the second tension spring, the tension of the second tension spring reversely extrudes the V-shaped strip to enable the clamping block at the lower end of the V-shaped strip to be clamped into the clamping slot, meanwhile, the connector base extrusion movable block drives the strip plate to rotate to enable the arc plate to extrude the first rubber ring, the first rubber ring is extruded into the annular slot, the waterproof connector is convenient to install, the connector base is directly pushed to the direction of the connector head during installation, the V-shaped strip is stirred to extrude the second tension spring to enable the clamping block to move out of the clamping slot during detachment, the connector base is pulled out of the direction of the connector head, the locking mechanism and the self-locking mechanism are convenient to detach and install, rapid use by a user is facilitated, and convenience in use of the connector is improved.
Drawings
FIG. 1 is an isometric view of the present utility model;
FIG. 2 is a schematic view showing the internal structure of the first protective casing according to the present utility model;
FIG. 3 is a schematic diagram of the internal structure of a second protective case according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a first protective shell of the present utility model;
fig. 5 is a schematic cross-sectional view of a second protective case according to the present utility model
FIG. 6 is an enlarged view of the utility model at A
FIG. 7 is an enlarged schematic view of the present utility model at B.
Legend description:
1. a first protective case; 2. a second protective case; 3. an annular slot; 4. a connector head; 5. an annular groove; 6. a clamping groove; 7. annular cutting; 8. a self-locking mechanism; 801. a strip-shaped plate; 802. an arc-shaped plate; 803. a first rubber ring; 804. a first tension spring; 805. a movable block; 9. a locking mechanism; 901. pressing the plate; 902. a V-shaped strip; 903. a clamping block; 904. a second tension spring; 10. a second rubber ring; 11. a connector base; 12. a third rubber ring; 13. and a protective sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-7, one embodiment provided by the present utility model is: the waterproof connector comprises a first protective shell 1 and a second protective shell 2, wherein an annular slot 3 is formed in one side, close to the second protective shell 2, of the first protective shell 1, locking mechanisms 9 are embedded in the positions, close to the second protective shell 2, of the upper end face and the lower end face of the first protective shell 1, the two locking mechanisms 9 comprise V-shaped strips 902, and the two V-shaped strips 902 are hinged in the first protective shell 1 at the middle positions;
a second tension spring 904 is fixedly arranged at the position between one side of each of the two V-shaped strips 902 and the first protective shell 1, the second tension spring 904 is convenient for providing tension for the V-shaped strips 902 to enable clamping blocks 903 to be clamped into clamping grooves 6 conveniently, clamping blocks 903 are hinged at the positions, far away from the second tension spring 904, of the lower end faces of the two V-shaped strips 902, annular inserting strips 7 are fixedly arranged at one side, close to the first protective shell 1, of each of the second protective shells 2, the annular inserting strips 7 and the annular inserting grooves 3 are consistent in size and are convenient for mutual clamping, the annular inserting strips 7 are clamped in the annular inserting grooves 3, clamping grooves 6 are formed in the upper end faces and the lower end faces of the annular inserting strips 7, close to the two clamping blocks 903, of the two clamping blocks 903 are respectively clamped in the two clamping grooves 6;
the self-locking mechanisms 8 are embedded into the positions, far away from the second protective shell 2, of one side of the upper side and the lower side of the inner part of the first protective shell 1, the two self-locking mechanisms 8 comprise strip-shaped plates 801, the two strip-shaped plates 801 are hinged to the inner part of the first protective shell 1, movable blocks 805 are hinged to the positions, close to the second protective shell 2, of the two strip-shaped plates 801, first tension springs 804 are fixedly arranged between the opposite sides of the two movable blocks 805 and the first protective shell 1, the movable blocks 805 are convenient to reset, stability of the connector base 11 when the connector base 11 enters the connector head 4 can be improved, swing amplitude of the self-locking mechanisms 8 is prevented from being larger, arc-shaped plates 802 are hinged to the positions, far away from the second protective shell 2, of the two strip-shaped plates 801 are in the shape of arc, the arc-shaped plates 802 are matched with the arc shape of the first rubber ring 803, and the first rubber ring 803 is convenient to be extruded into the annular groove 5;
the first rubber rings 803 are embedded and arranged at the positions of the opposite sides of the first protective shell 1, which are close to the two arc-shaped plates 802, the first rubber rings 803 are of annular design, are convenient to mutually adapt to the annular grooves 5, are convenient for fixing the connector seat 11 and the connector head 4, the connector head 4 is fixedly arranged on the inner side of the first protective shell 1, the connector seat 11 is fixedly arranged on the inner side of the second protective shell 2, the connector seat 11 is clamped with the connector head 4, and the annular groove 5 is arranged at the position, far away from one end of the second protective shell 2, of the outer side of the connector seat 11;
the connector seat 11 is clamped and close to the connector head 4, the second protective shell 2 is clamped and close to the first protective shell 1, the movable block 805 is pushed to move to the opposite side when the connector seat 11 enters, the movable block 805 moves to drive the strip-shaped plate 801 to rotate to enable the arc-shaped plate 802 to move to the opposite side to squeeze the first rubber ring 803, the first rubber ring 803 is squeezed into the annular groove 5 to enable the connector seat 11 to be firmly connected with the connector head 4, meanwhile, the annular insert 7 is clamped and close to the annular slot 3, the annular insert 7 pushes the clamping block 903 to move to the opposite side, the clamping block 903 is clamped into the clamping groove 6 when the annular insert 7 completely enters the annular insert 7, the connection relation between the connector seat 11 and the connector head 4 is enhanced, the connector seat 11 is tightly attached to the connector head 4, the V-shaped strip 902 is shifted inwards when the connector seat 11 needs to be disassembled to enable the clamping block 903 to be removed from the clamping groove 6, and the second protective shell 2 is pulled out from the first protective shell 1;
the upper end surfaces of the two V-shaped strips 902 are both hinged with the pressing plates 901, the pressing plates 901 can be pressed downwards to facilitate the rotation of the V-shaped strips 902, the clamping blocks 903 can move out of the clamping grooves 6, the first protective shell 1 and the second protective shell 2 are convenient to mount and dismount, the second rubber ring 10 is fixedly arranged on one side of the first protective shell 1, which is close to the second protective shell 2, the second rubber ring 10 is matched with the third rubber ring 12, the waterproof effect is improved, the third rubber ring 12 is fixedly arranged on the inner wall of one side, which is far away from the first protective shell 1, of the second protective shell 2, the third rubber ring 12 is in contact with the second rubber ring 10, the sealing performance of the connector can be effectively enhanced, and the waterproof effect is improved;
the protection sleeve 13 is fixedly arranged at the opposite side of the connector seat 11 and the connector head 4, the protection sleeve 13 is convenient for connecting wires with the connector seat 11 and the connector head 4, the wires are prevented from being broken due to long-time bending, the first protection shell 1 and the second protection shell 2 are made of high-strength flame-retardant PC materials, the PC materials have good electrical insulation property, extensibility and strength, flame retardance, waterproofness and corrosion resistance, the connector can be effectively protected safely in use, the cross section size of the first rubber ring 803 is larger than that of the annular groove 5, the arc plate 802 is convenient to extrude the first rubber ring 803, and part of the first rubber ring 803 enters the annular groove 5, so that the firmness and the tightness can be effectively increased.
Working principle: when the connector seat 11 is clamped and close to the connector head 4, meanwhile, the second protective shell 2 is clamped and close to the first protective shell 1, the movable block 805 is pushed to move to the opposite side when the connector seat 11 enters, the movable block 805 moves to drive the strip-shaped plate 801 to rotate, the arc-shaped plate 802 moves to the opposite side to squeeze the first rubber ring 803, the first rubber ring 803 is squeezed into the annular groove 5, the connector seat 11 and the connector head 4 are firmly connected together, meanwhile, the annular cutting 7 is clamped and close to the annular slot 3, the annular cutting 7 pushes the clamping block 903 to move to the opposite side, the clamping block 903 is clamped into the clamping groove 6 when the annular cutting 7 completely enters the annular cutting 7, the connection relation between the connector seat 11 and the connector head 4 is enhanced, the connector seat 11 is tightly attached to the connector head 4, the V-shaped strip 902 is shifted to the inner side when the connector seat 11 needs to be disassembled, the clamping block 903 is removed from the clamping groove 6, and the second protective shell 2 is pulled out of the first protective shell 1.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A waterproof connector comprising a first protective shell (1) and a second protective shell (2), characterized in that: an annular slot (3) is formed in one side, close to the second protective shell (2), of the first protective shell (1), locking mechanisms (9) are embedded in the positions, close to the second protective shell (2), of the upper end face and the lower end face of the first protective shell (1), the two locking mechanisms (9) comprise V-shaped strips (902), the two V-shaped strips (902) are hinged to the inside of the first protective shell (1) at middle positions, second tension springs (904) are fixedly arranged between one side of the two V-shaped strips (902) and the first protective shell (1), clamping blocks (903) are hinged to the positions, close to the second tension springs (904), of the lower end faces of the two V-shaped strips (902), annular strips (7) are fixedly arranged on one side, close to the first protective shell (2), of the annular strips (7) in a clamping mode, clamping grooves (6) are formed in the positions, close to the two clamping blocks (903), of the upper end faces and the lower end faces of the annular strips (7) in a clamping mode, and the two clamping blocks (903) are respectively arranged in the two clamping grooves (6);
the novel anti-theft protection device is characterized in that a self-locking mechanism (8) is embedded in the upper side and the lower side of the inside of the first protection shell (1) away from the second protection shell (2), the self-locking mechanism (8) comprises strip-shaped plates (801), the strip-shaped plates (801) are hinged to the inside of the first protection shell (1), movable blocks (805) are hinged to the positions, close to the second protection shell (2), of the strip-shaped plates (801), first tension springs (804) are fixedly arranged between the opposite sides of the movable blocks (805) and the first protection shell (1), arc-shaped plates (802) are hinged to the positions, close to the second protection shell (2), of the strip-shaped plates (801), first rubber rings (803) are embedded in the positions, close to the opposite sides of the two arc-shaped plates (802), and connector heads (4) are fixedly arranged on the inner sides of the first protection shell (1).
The connector base (11) is fixedly arranged on the inner side of the second protective shell (2), the connector base (11) is connected with the connector head (4) in a clamping mode, and an annular groove (5) is formed in the outer side of the connector base (11) and away from one end of the second protective shell (2).
2. A waterproof connector according to claim 1, wherein: the upper end faces of the two V-shaped strips (902) are both hinged with pressing plates (901).
3. A waterproof connector according to claim 1, wherein: and a second rubber ring (10) is fixedly arranged on one side of the first protective shell (1) close to the second protective shell (2).
4. A waterproof connector according to claim 1, wherein: the inner wall of one side of the second protective shell (2) far away from the first protective shell (1) is fixedly provided with a third rubber ring (12).
5. A waterproof connector according to claim 1, wherein: the connector base (11) and the connector head (4) are fixedly provided with protective sleeves (13) at the opposite side.
6. A waterproof connector according to claim 1, wherein: the first protective shell (1) and the second protective shell (2) are made of high-strength flame-retardant PC materials.
7. A waterproof connector according to claim 1, wherein: the cross section size of the first rubber ring (803) is larger than that of the annular groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321622130.XU CN220138855U (en) | 2023-06-26 | 2023-06-26 | Waterproof connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321622130.XU CN220138855U (en) | 2023-06-26 | 2023-06-26 | Waterproof connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220138855U true CN220138855U (en) | 2023-12-05 |
Family
ID=88960794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321622130.XU Active CN220138855U (en) | 2023-06-26 | 2023-06-26 | Waterproof connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220138855U (en) |
-
2023
- 2023-06-26 CN CN202321622130.XU patent/CN220138855U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220138855U (en) | Waterproof connector | |
| CN101442167B (en) | Water-proof cable tail clip for circular electric connector | |
| CN214673140U (en) | Radio frequency cable assembly with joint waterproof structure | |
| CN218182565U (en) | Power plug with protection architecture | |
| CN210744293U (en) | Halogen-free TPF plug with high safety | |
| CN114976748A (en) | Waterproof connector device and manufacturing method thereof | |
| CN112018548A (en) | Waterproof type quick connector for signal transmission | |
| CN220439985U (en) | Waterproof wire connector | |
| CN220914627U (en) | Waterproof signal line connector | |
| CN219696775U (en) | Electronic connector with waterproof function | |
| CN220510417U (en) | Explosion-proof quick-operation joint of cable of public mother does not distinguish | |
| CN221305120U (en) | Self-locking connector | |
| CN220086589U (en) | Direction-adjustable quick-plug energy storage connector | |
| CN214957721U (en) | Power line with good waterproof effect | |
| CN218569357U (en) | Rotary sliding head structure of data line | |
| CN218783277U (en) | DC power socket | |
| CN215418854U (en) | Plug connector assembly | |
| CN213782357U (en) | DC waterproof induction connecting wire with double clamping grooves | |
| CN220895954U (en) | Compact structure's electronic connector | |
| CN220569959U (en) | Waterproof wire connector with high sealing performance | |
| CN216389982U (en) | Free rotation connector | |
| CN210183001U (en) | Outdoor quick junction device of cable | |
| CN218334606U (en) | Mining cable joint connector | |
| CN215771690U (en) | Leakage-proof water joint protection device | |
| CN219123566U (en) | Wire harness connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |