CN210003920U - water purifier, vibration and noise reduction pump assembly and buffer valve - Google Patents
water purifier, vibration and noise reduction pump assembly and buffer valve Download PDFInfo
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- CN210003920U CN210003920U CN201920614023.XU CN201920614023U CN210003920U CN 210003920 U CN210003920 U CN 210003920U CN 201920614023 U CN201920614023 U CN 201920614023U CN 210003920 U CN210003920 U CN 210003920U
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Abstract
kind of purifier and damping noise reduction pump package, cushion valve relate to purifier technical field, the cushion valve includes the valve body, is equipped with water inlet and delivery port on the valve body, be equipped with the bolster in the valve body, the end of bolster faces the water inlet sets up, the other end of bolster faces the delivery port sets up, the bolster with be equipped with the intercommunication between the valve body the water inlet with the water channel of delivery port, be equipped with in the valve body and be used for spacingly the setting element of bolster, the damping noise reduction pump package includes the water pump, the delivery port of water pump is equipped with the cushion valve.
Description
Technical Field
The utility model relates to a purifier technical field, concretely relates to kinds of purifiers and damping noise reduction pump package, cushion valve.
Background
In the aspect of vibration and noise reduction technology of water pumps of water purifiers, at present, all water purifying manufacturers generally adopt improvement on the aspects of installation and fixation of the water pumps, and the noise of the water pumps is well known to be not only from vibration of the water pumps and driving peripheral structures but also from noise of water flows at water outlets of the water pumps, and the method can only bring fixed vibration reduction effects aiming at the vibration of the water pumps, but has no effect on the water flow noise at the water outlets of the water pumps.
SUMMERY OF THE UTILITY MODEL
For reducing rivers noise, the utility model discloses a technical scheme provides cushion valves, including the valve body, be equipped with water inlet and delivery port on the valve body, be equipped with the bolster in the valve body, the end of bolster faces the water inlet sets up, the end in addition of bolster is facing the delivery port setting, the bolster with be equipped with the intercommunication between the valve body the water inlet with the water channel of delivery port, it is spacing to be equipped with in the valve body the setting element of bolster.
Optionally, the valve body includes th valve wall and the second valve wall of relative setting, be equipped with on the th valve wall the water inlet, be equipped with on the second valve wall the delivery port.
Optionally, the positioning element includes th positioning ribs and second positioning ribs, the th positioning ribs are provided with at least two, each th positioning rib includes a supporting portion and a limiting portion, the end of the buffering element is supported on each supporting portion of the th positioning rib, each limiting portion of the th positioning rib is limited on the side portion of the buffering element, and the second positioning ribs are limited on the other end of the buffering element.
Optionally, the th positioning ribs are arranged on the th valve wall and spaced around the water inlet, and a water inlet and water outlet which is communicated with the water inlet and the water passage is arranged between two adjacent th positioning ribs.
Optionally, the second positioning rib is provided with at least two ends abutting against another ends of the buffer member, the second positioning rib is arranged on the second valve wall and is arranged around the water outlet at intervals, and a water outlet and a water passing opening communicating the water outlet and the water passing channel are arranged between two adjacent second positioning ribs.
Optionally, the valve body includes a valve body main body and an end cover arranged at the end of the valve body main body in a sealing manner, the end cover is provided with the water outlet, and the other end of the valve body main body is provided with the water inlet.
Optionally, the valve body is in threaded connection with the end cover and a sealing element is arranged between the valve body and the end cover; or, the valve body main part is connected with the end cover in a sealing way.
The utility model discloses an technical scheme provides kinds of damping and fall pump package of making an uproar in addition, including the water pump, the delivery port of water pump is equipped with arbitrary the cushion valve, the cushion valve vertically sets up, the delivery port of cushion valve is located the top of its water inlet.
Optionally, the vibration and noise reduction pump assembly further comprises an th damping member sleeved outside the water pump, a second damping member supported at the bottom of the water pump, and a fixing frame, wherein the water pump is fixed on the fixing frame, and the second damping member is limited on the fixing frame.
The utility model discloses an technical scheme provides purifier in addition, include and wanting the vibration damping fall the pump package of making an uproar, the pump package of making an uproar is vertically installed to the vibration damping, the delivery port of water pump is located on the aircraft nose of water pump, the aircraft nose is located the lower part of the pump package of making an uproar is fallen in the vibration damping.
Has the advantages that:
1. set up the bolster in the valve body of cushion valve to with the end of bolster to the water inlet setting on the valve body, the delivery port setting on the valve body is faced to end in addition of bolster, the rivers that get into in the valve body like this can strike the bolster at time, because the cushioning effect of bolster, flow out through the delivery port of water channel follow valve body in the valve body after properly slowing down rivers, thereby reach the effect that reduces rivers noise.
2. Adopt the location muscle to support and fix a position tip and the lateral part of bolster, adopt the second location muscle to fix a position the end in addition of bolster, the displacement of bolster arbitrary direction can be restricted to the location muscle and second location muscle like this, guarantees the stable buffering effect of bolster performance.
3. The th positioning ribs are arranged at intervals around the water inlet of the valve body, and a water inlet and water outlet is arranged between every two adjacent th positioning ribs, so that water flow entering the valve body from the water inlet can enter the water passing channel of the valve body through the water inlet and water passing ports around the water inlet after impacting the end of the buffer member, namely, the water flow buffered by the buffer member can timely flow into the water passing channel, the retention time is shortened, and the flow speed of the water flow is ensured.
4. The second positioning ribs are arranged at intervals around the water outlet of the valve body, and a water outlet is arranged between every two adjacent second positioning ribs, so that water flow in the water passage can enter the water outlet and flow out through the water outlet water outlets around the water outlet, the retention time of the water flow near the water outlet is reduced, and the flow speed of the water flow is ensured.
5. The buffer valve is longitudinally arranged on the water pump water outlet of the vibration-damping noise-reduction pump assembly, so that gravity needs to be overcome when water flow entering the buffer valve from the water pump water outlet flows in the valve body, the buffer effect of the water flow can be enhanced, and the water flow noise is reduced.
6. damping part is established to the outside cover of water pump at the pump of the pump subassembly of making an uproar falls in the damping, and the water pump bottom sprag is on the second damping part to be fixed in the water pump on the mount, can realize like this that the noise that the vibration of reducible water pump brought is soft contact between water pump and the peripheral accessories.
Drawings
The drawings are used for providing steps for understanding the technical solution of the present invention, and constitute part of the specification, which plays a role in explaining the technical solution of the present invention with embodiment of the present invention, and do not constitute a limitation to the technical solution of the present invention.
FIG. 1 is a schematic cross-sectional view of a cushion valve according to an embodiment of the present invention at ;
FIG. 2 is an exploded view of the trim valve of FIG. 1;
FIG. 3 is a perspective view of the valve body of the trim valve of FIG. 1 from perspectives;
FIG. 4 is a perspective view of an end cap of the trim valve of FIG. 1 from perspectives;
fig. 5 is a schematic cross-sectional view of another embodiment of the cushion valve of the present invention;
fig. 6 is a schematic cross-sectional view of another embodiment of the cushion valve of the present invention;
fig. 7 is a schematic cross-sectional view of another embodiment of the cushion valve of the present invention;
figure 8 is an exploded view of a vibration and noise reduction pump assembly according to an embodiment of the present invention at ;
FIG. 9 is a schematic illustration of the overall construction of the vibration and noise reduction pump assembly of FIG. 8;
the reference numerals of the device include 1, an end cover, 101, a water outlet, 102, a flange, 103, a second positioning rib, 2, a valve body main body, 201, a th positioning rib, 2011, a limiting part, 2012, a supporting part, 202, a water inlet, 3, a buffering part, 4, a water outlet and water passing opening, 6, a water inlet and water passing opening, 7, threads, 8, a sealing part, 9, a buffering layer, 11, a damping part, 1101, a lead port, 1103, a through hole, 1104, an avoiding part, 12, a water pump, 1201, a connecting hole, 1202, a connector, 1203, a machine head, 1204, a water inlet, 13, a buffering valve, 14, a second damping part, 1401, an avoiding groove, 1402, a positioning boss, 15, a fixing frame, 1501, a second mounting hole, 1502, a positioning hole, 1503, a mounting hole, 16, a fastening component, 17, a second fastening component, 18 and a water purifier base.
The arrows in the figure represent the path and direction of the water flow.
Detailed Description
The technical solution of the present invention will be further illustrated by means of the following detailed description in conjunction with the accompanying drawings, it being understood that the embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
As shown in fig. 1-7, an embodiment of the utility model discloses an provides cushion valves, including the valve body, be equipped with water inlet 202 and delivery port 101 on the valve body, be equipped with bolster 3 in the valve body, the end of bolster 3 faces water inlet 202 sets up, the end of bolster 3 faces the delivery port 101 sets up in addition, bolster 3 with be equipped with the intercommunication between the valve body water inlet 202 with the water channel of delivery port 101, be equipped with in the valve body and be used for spacingly the setting element of bolster 3.
The valve body is internally provided with the buffer member 3, the end of the buffer member 3 is arranged opposite to the water inlet 202 on the valve body, the other end of the buffer member 3 is arranged opposite to the water outlet 101 on the valve body, therefore, the water flow entering the valve body can impact the buffer member 3 at the th time, and due to the buffering effect of the buffer member 3, the water flow properly slows down and then flows out from the water outlet 101 of the valve body through the water passage in the valve body, so that the effect of reducing the water flow noise is achieved.
As shown in fig. 1 to 4, the valve body may include a valve body main body 2 and an end cover 1 hermetically disposed at an end of the valve body main body 2 , the end cover 1 is provided with the water outlet 101, and the other end of the valve body main body 2 is provided with the water inlet 202.
The valve body main body 2 can comprise a cylindrical body with an end opening and a circular or rectangular cross section, the open end of the cylindrical body is hermetically connected with the end cover 1, the end wall of the other end of the cylindrical body is provided with a through hole, the through hole is connected with the straight tubular water inlet 202, the cross section of the water inlet 202 can be circular or rectangular, the end cover 1 can comprise a circular or rectangular cover body, the periphery of the cover body is provided with a flange 102, the cover body seals the open end of the cylindrical body of the valve body main body 2, the flange 102 is clamped on the side wall of the cylindrical body of the valve body main body 2, the cover body is provided with a through hole, the through hole is connected with a straight tubular water outlet 101, and.
Referring to fig. 5 and 6, the valve body 2 and the end cover 1 can be connected through threads 7, and a sealing member 8 is arranged between the two, so that the valve body is convenient to disassemble, and maintenance and recycling are facilitated. Can set up the internal thread at the medial surface of flange 102 of end cover 1, set up on the lateral surface of the open end of the tube-shape body of valve body main part 2 with the internal thread complex external screw thread of flange 102, realize threaded connection, for guaranteeing sealed effect, set up sealing member 8 and seal in both junctions, sealing member 8 can be the sealing washer of flexible material such as rubber.
Referring to fig. 1 and 7, the valve body main body 2 and the end cover 1 may also be bonded by using a bonding agent, the bonding agent performs a sealing function while achieving bonding, and the bonding agent may be a strong sealant or the like. It can be understood that the sealing between the valve body main body and the end cover can be realized by firstly connecting the valve body main body and the end cover by screw threads and then sealing by a sealing part, or can be realized by directly sealing the valve body main body and the end cover by ultrasonic welding, gluing, plastic hot melting and other modes.
As shown in fig. 1 to 4, the positioning element includes -th positioning ribs 201 and second positioning ribs 103, at least two positioning ribs 201 are disposed on the -th positioning ribs 201, each -th positioning rib 201 includes a supporting portion 2012 and a limiting portion 2011, the end of the cushion element 3 is supported on the supporting portion 2012 of each -th positioning rib 201, the limiting portion 2011 of each -th positioning rib 201 is limited on the side portion of the cushion element 3, and the second positioning ribs 103 are limited on the other end of the cushion element 3.
Adopt the location muscle 201 to support and fix a position tip and lateral part of bolster 3, adopt second location muscle 103 to fix a position the end in addition of bolster 3, the displacement of the arbitrary direction of bolster 3 can be restricted to location muscle 201 and second location muscle 103 like this, guarantee that bolster 3 exerts stable buffering effect.
As shown in fig. 3, each -th positioning rib 201 may be an L-shaped plate-like structure, which may be longitudinally fixed on the end wall of the cylindrical body of the valve body 2 or/and the inner side of the cylindrical body, and the buffer member 3 is a cylindrical structure made of flexible material such as silicone rubber, for example, cylindrical or prismatic.
As shown in fig. 1-3, the positioning ribs 201 may be disposed on the end wall of the cylindrical body of the valve body main body 2 where the water inlet 202 is disposed, and are spaced around the water inlet 202, two adjacent positioning ribs 201 are disposed with the water inlet and outlet 6 communicating the water inlet 202 and the water passage, and the number of the positioning ribs 201 may be two or more as required.
As shown in fig. 1, 2 and 4, the second positioning ribs 103 are provided with at least two ends abutting against the other ends of the buffer member 3 to compress and fix the buffer member 3, the second positioning ribs 103 are arranged on the cover body of the end cover 1 and surround the water outlet 101 at intervals, and a water outlet and water passing opening 4 communicating the water outlet 101 with the water passing channel is arranged between two adjacent second positioning ribs 103, so that water in the water passing channel can flow into the water outlet 101 and flow out through the water outlet and water passing openings 4 around the water outlet 101, thereby reducing the retention time of the water flow near the water outlet 101 and ensuring the flow rate of the water flow.
As shown in fig. 6 and 7, the inner wall of the valve body of the cushion valve of the present embodiment may further be covered with a cushion layer 9, and the cushion layer 9 may be made of a material such as silica gel, which may further reduce the water flow noise.
As shown in fig. 8 and 9, another embodiment of the present invention provides vibration and noise reduction pump assemblies, which include a water pump 12, wherein the water outlet of the water pump 12 is provided with any of the cushion valve 13, the cushion valve 13 is vertically disposed, and the water outlet 101 of the cushion valve 13 is located above the water inlet 202 thereof.
The water outlet of the water pump 12 can be provided with the buffer valve 13 through an joint 1202, the joint 1202 can be inserted into the water outlet of the water pump 12 at the end, and the end is inserted into the water inlet 202 of the buffer valve 13.
The buffer valve 13 is longitudinally arranged on the water outlet of the water pump 12 of the vibration and noise reduction pump assembly, so that the water flow entering the buffer valve 13 from the water outlet of the water pump 12 flows in the valve body and needs to overcome gravity, the buffer effect of the water flow can be enhanced, and the can further reduce the noise of the water flow.
The water inlet 202 of the buffer valve 13 can be quickly inserted into the quick-inserting connector 1202 arranged on the water outlet of the water pump 12, when water enters from the water inlet 1204 of the water pump 12, the water enters the buffer valve 13 from the water outlet of the water pump 12 after being pressurized by the water pump 12, the surge water flow impacts the buffer member 3 in the buffer valve 13 at the th time, and the buffer member 3 is made of a flexible material and has a deformation buffering effect, so that the water flow properly slows down and then flows out of the buffer valve 13, and the effect of reducing the water flow noise is achieved.
As shown in fig. 8 and 9, the vibration and noise reduction pump assembly may further include a th damping member 11 sleeved outside the water pump 12, a second damping member 14 supported at the bottom of the water pump 12, and a fixing frame 15, wherein the water pump 12 is fixed on the fixing frame 15, and the second damping member 14 is limited on the fixing frame 15.
the damping member 11 and the second damping member 14 can both be made of silica gel material, the fixing frame 15 can be an L-shaped sheet metal bracket, and includes a bottom plate and a side plate, the bottom plate of the fixing frame 15 is provided with a positioning hole 1502, the second damping member 14 is limited in the positioning hole 1502 through a positioning boss 1402 arranged at the bottom of the second damping member, the bottom plate is provided with a plurality of second mounting holes 1501 around the positioning hole 1502 for fixing on the equipment to be mounted through a second fastening component 17, when the water pump 12 is mounted, the head 1203 of the water pump 12 can be located at the bottom of the water pump 12, two sides of the head 1203 of the water pump 12 are respectively provided with a water inlet 1204 and a water outlet, the water outlet is provided with a joint 1202, the head 1203 of the water pump 12 is placed in the accommodating groove of the second damping member 14, the second damping member 14 is provided with an avoiding groove 1401 for avoiding.
The th damping member 11 is a sleeve-shaped structure with an opening at the bottom, which is sleeved outside the water pump 12 and surrounds the side and the top of the water pump 12, the th damping member 11 is provided with a lead port 1101 for leading out a cable of the water pump 12, the lead port 1101 has an air exhaust function when the water pump 12 is installed in the th damping member 11, a connector 1202 and a water inlet 1204 at a water outlet of the water pump 12 are exposed outside the th damping member 11 to be connected with an external pipeline, a bypass portion 1104 (which may be a groove or a hole) is provided on the side wall of the th damping member 11 to bypass the cushion valve 13 installed at the water outlet of the water pump 12, a connection hole 1201 is provided on the side of the water pump 12, a -th installation hole 1503 is provided on the side plate of the fixing frame 15, the -th installation hole 1503 and the connection hole 1103 at the side of the water pump 3512 are connected by a fastening assembly 16 to fix the water pump 12 to the fixing frame 15, and a through hole 1103 for.
The th fastening component 16 and the second fastening component 17 can both comprise a screw, a stainless steel washer and a silicone sheet, the th fastening component 16 and the second fastening component 17 can be mounted with the silicone sheet covering the screw to make soft contact between the screw and the fixing frame 15, and the second fastening component 17 can also comprise a nut for screwing on the end of the screw.
the damping piece 11 and the second damping piece 14 completely wrap the water pump 12, the positioning boss 1402 on the second damping piece 14 is aligned with the positioning hole 1502 on the fixing frame 15, the water pump 12 is fixed with the fixing frame 15 by the fastening component 16 of the , the water pump 12 is fixed on the fixing frame 15, and finally the fixing frame 15 is fixed on the water purifier body by the second fastening component 17.
The water pump 12 can be folded up and down to form a full bag by arranging the th damping piece 11 and the second damping piece 14, so that double soft support for the water pump 12 is realized, soft contact between the water pump 12 and peripheral parts is realized, a damping effect is realized, and noise caused by vibration of the water pump 12 can be reduced.
As shown in fig. 8 and 9, another embodiment of the present invention provides water purifiers, including any of the vibration and noise reduction pump assembly, the vibration and noise reduction pump assembly is vertically installed, the water outlet of the water pump 12 is located on the head 1203 of the water pump 12, and the head 1203 is located below the vibration and noise reduction pump assembly.
When the vibration and noise reduction pump assembly is installed, the water pump 12 is fixed on the fixing frame 15 in an inverted manner, namely the head 1203 of the water pump 12 is located below, the head 1203 of the water pump 12 is placed in the accommodating groove of the second shock absorbing piece 14, the -th shock absorbing piece 11 is sleeved outside the water pump 12, and the fixing frame 15 is fixed on the water purifier base 18 through the second fastening assembly 17.
Through setting up damper 11 and second damper 14, realize water pump 12 and peripheral accessories soft contact, reach the damping effect, fix water pump 12 on mount 15 upside down simultaneously, fix mount 15 and purifier base 18 again, make water pump 12 and mount 15, purifier main part all be soft contact to realize the dual soft support of water pump 12 and fix, and constitute two-stage damping structure, reach the effect of damping and falling noise.
Reduce the vibration of water pump 12 through setting up damping member 11 and second damping member 14, reduce the noise that the vibration of water pump 12 brought, through the cushion valve 13 of water pump 12 delivery port installation, reduce the rivers noise that water pump 12 goes out water, two kinds of measures combine together like this, can effectively reach the effect of making an uproar that falls in the damping more.
In describing embodiments of the present invention, unless otherwise expressly stated or limited, the terms "connected," "fixedly connected," "mounted," and "assembled" are to be construed , e.g., as being fixedly connected, detachably connected, or physically connected, as being directly connected, indirectly connected through an intervening medium, or as communicating between two elements.
Claims (10)
- The buffer valve comprises a valve body, wherein a water inlet and a water outlet are formed in the valve body, and the buffer valve is characterized in that a buffer piece is arranged in the valve body, the end of the buffer piece faces the water inlet, the other end of the buffer piece faces the water outlet, a water passing channel for communicating the water inlet with the water outlet is formed between the buffer piece and the valve body, and a positioning piece for limiting the buffer piece is arranged in the valve body.
- 2. The cushion valve of claim 1, wherein the valve body comprises an th valve wall and a second valve wall which are oppositely arranged, the water inlet is arranged on the th valve wall, and the water outlet is arranged on the second valve wall.
- 3. The cushion valve as claimed in claim 2, wherein the positioning member comprises th positioning ribs and second positioning ribs, the th positioning ribs are provided with at least two, each th positioning rib comprises a supporting portion and a limiting portion, the end of the cushion member is supported on the supporting portion of each th positioning rib, the limiting portion of each th positioning rib is limited on the side portion of the cushion member, and the second positioning ribs are limited on the other end of the cushion member.
- 4. The cushion valve of claim 3, wherein the th positioning ribs are arranged on the th valve wall and spaced around the water inlet, and a water inlet and water outlet communicated with the water inlet and the water passage are arranged between two adjacent th positioning ribs.
- 5. The cushion valve of claim 3, wherein the second positioning ribs are provided with at least two and abut against the other ends of the cushion member, the second positioning ribs are provided on the second valve wall and are arranged at intervals around the water outlet, and a water outlet and water passing port communicating the water outlet and the water passing channel is arranged between two adjacent second positioning ribs.
- 6. The cushion valve of claim 1, wherein the valve body comprises a main body and an end cover hermetically disposed at the end of the main body, the end cover is disposed with the water outlet, and the other end of the main body is disposed with the water inlet.
- 7. The trim valve of claim 6, wherein: the valve body main body is in threaded connection with the end cover, and a sealing element is arranged between the valve body main body and the end cover; or, the valve body main part is connected with the end cover in a sealing way.
- A vibration and noise reduction pump assembly of claim 8 or , comprising a water pump, wherein the water outlet of the water pump is provided with a cushion valve of any claim 1-7, the cushion valve is arranged longitudinally, and the water outlet of the cushion valve is positioned above the water inlet of the cushion valve.
- 9. The vibration and noise reduction pump assembly as recited in claim 8, further comprising a th damping member sleeved outside the water pump, a second damping member supported at the bottom of the water pump, and a fixing frame, wherein the water pump is fixed on the fixing frame, and the second damping member is limited on the fixing frame.
- 10, A water purification machine, characterized in that it comprises a vibration and noise reduction pump assembly as claimed in claim 8 or 9, said assembly being mounted longitudinally, the water outlet of said pump being located on the head of said pump, said head being located below said assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614023.XU CN210003920U (en) | 2019-04-29 | 2019-04-29 | water purifier, vibration and noise reduction pump assembly and buffer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920614023.XU CN210003920U (en) | 2019-04-29 | 2019-04-29 | water purifier, vibration and noise reduction pump assembly and buffer valve |
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| Publication Number | Publication Date |
|---|---|
| CN210003920U true CN210003920U (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920614023.XU Active CN210003920U (en) | 2019-04-29 | 2019-04-29 | water purifier, vibration and noise reduction pump assembly and buffer valve |
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| CN (1) | CN210003920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903629A (en) * | 2022-06-28 | 2022-08-16 | 东莞市力博得电子科技有限公司 | Tooth flushing device core, assembling method and tooth flushing device |
-
2019
- 2019-04-29 CN CN201920614023.XU patent/CN210003920U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903629A (en) * | 2022-06-28 | 2022-08-16 | 东莞市力博得电子科技有限公司 | Tooth flushing device core, assembling method and tooth flushing device |
| CN114903629B (en) * | 2022-06-28 | 2023-12-22 | 东莞市力博得电子科技有限公司 | Tooth flushing device core, assembly method and tooth flushing device |
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Effective date of registration: 20230904 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |
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| TR01 | Transfer of patent right |