CN108797771B - Double-buoyancy ball overflow-preventing floor drain - Google Patents
Double-buoyancy ball overflow-preventing floor drain Download PDFInfo
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- CN108797771B CN108797771B CN201810758791.2A CN201810758791A CN108797771B CN 108797771 B CN108797771 B CN 108797771B CN 201810758791 A CN201810758791 A CN 201810758791A CN 108797771 B CN108797771 B CN 108797771B
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- floor drain
- buoyancy
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- buoyancy ball
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/06—Gully gratings
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/06—Devices for restraining rats or other animals
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
- E03F2005/0417—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a valve
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F2005/0416—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal
- E03F2005/0418—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps with an odour seal in the form of a bell siphon
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sink And Installation For Waste Water (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
The invention discloses a double-buoyancy-ball anti-overflow floor drain, which comprises a floor drain frame, a floor drain cover and a aqueduct, the water-saving floor drain comprises an outer sleeve, a buoyancy ball cover and a buoyancy sealing head, wherein a water outlet is formed in the bottom of a floor drain frame, the upper end of a water guide pipe is fixed to the bottom surface of the floor drain frame and is communicated with the water outlet, the outer sleeve is sleeved outside the water guide pipe, the lower end of the outer sleeve is sealed, an overflow opening is formed in the middle of the outer sleeve, a water seal cavity is formed in a gap between the outer sleeve and the water guide pipe below the overflow opening, the buoyancy sealing head is located in the water seal cavity and is matched with the outlet at the lower end of the water guide pipe, the buoyancy ball cover with an open structure at the bottom is arranged above the water outlet, a left buoyancy ball cavity and a right buoyancy ball cavity are arranged in the buoyancy ball cover, buoyancy balls are arranged in the left buoyancy ball cavity and the right. The invention has novel and ingenious structure, high drainage speed and good sealing effect, and can effectively prevent back overflow.
Description
Technical Field
The invention relates to a floor drain, in particular to an anti-overflow floor drain with double buoyancy balls.
Background
The floor drain is an important interface for connecting a drainage pipeline system and the indoor ground, is an important part of a drainage system in a house, has the performance which directly influences the quality of indoor air, and is very important for controlling peculiar smell in a bathroom.
The traditional water seal floor drain is in a bell-jar type and is buckled on a sewer pipe opening like a buckling bowl structure to form a U-shaped trap, and the sealing effect is achieved by using a water seal in the trap. However, the water seal of the floor drain is shallow, the water sealing amount is too small, the floor drain is dried due to factors such as time and weather, and smelly, and in addition, the water discharge amount of the floor drain is limited, and when the water discharge amount is too large and exceeds the limit of the water discharge amount of the floor drain, the water can overflow (called as reverse water or overflow).
Disclosure of Invention
The invention aims to solve the technical problems of the floor drain in the prior art, and provides the overflow-preventing floor drain with the double floating balls, which has the advantages of novel and ingenious structure, high drainage speed, good sealing effect and capability of effectively preventing overflow.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a double-buoyancy-ball anti-return overflow floor drain, which comprises a floor drain frame, a floor drain cover, a water guide pipe, an outer sleeve pipe, a buoyancy ball cover and a buoyancy sealing head, wherein the floor drain cover is arranged on the floor drain frame, the bottom of the floor drain frame is provided with a water outlet, the upper end of the water guide pipe is fixed on the bottom surface of the floor drain frame and communicated with the water outlet, the outer sleeve pipe is sleeved outside the water guide pipe, the upper end of the outer sleeve pipe is fixedly connected with the bottom surface of the floor drain frame, the lower end of the outer sleeve pipe is sealed, the middle part of the outer sleeve pipe is provided with an overflow port, a water sealing cavity is formed by a gap between the outer sleeve pipe and the water guide pipe below the overflow port, the buoyancy sealing head is positioned in the water sealing cavity between the lower end of the water guide pipe and the bottom of the outer sleeve pipe, the buoyancy ball cover is, the buoyancy ball cavity is formed by a gap between the left baffle group and the buoyancy ball cover, the right buoyancy ball cavity is formed by a gap between the right baffle group and the buoyancy ball cover, the buoyancy balls are arranged in the left buoyancy ball cavity and the right buoyancy ball cavity, a siphon channel is formed by a gap between the buoyancy balls, a water inlet hole is formed in the position, corresponding to the top surface of the buoyancy ball cover, above the buoyancy ball, of the top surface of the buoyancy ball cover, the diameter of the water inlet hole is smaller than that of the buoyancy ball, and the buoyancy ball is matched with the water inlet hole. The left buoyancy ball cavity and the right buoyancy ball cavity in the invention are matched with the buoyancy ball in shape, so that the buoyancy ball can move up and down in the left buoyancy ball cavity or the right buoyancy ball cavity, when water flow enters the buoyancy ball cover from the water inlet, the buoyancy ball is pressed at the bottom of the left buoyancy ball cavity and the right buoyancy ball cavity under the impact of the water flow and the self gravity, the water flow can quickly enter the water guide pipe under the siphoning action of the siphoning channel, the buoyancy sealing head moves down under the action of the pressure and the impact force of the water so as to open the opening at the bottom of the water guide pipe, the water can be discharged from the overflow port through the water seal cavity, when the water flow is too large, the water in the buoyancy ball cover can be discharged, the buoyancy ball cover can be gradually filled with the water, the buoyancy ball floats upwards to seal the water inlet under the action of the buoyancy, so as to prevent water backflow, and when the water discharge is stopped, the water in the water seal cavity forms a bottom water, meanwhile, the buoyancy sealing head floats under the buoyancy action of water in the water seal cavity to seal the opening at the bottom of the aqueduct again, so that the effects of deodorization and insect prevention are achieved.
Preferably, the floor drain frame is of a stepped cylindrical structure with an open top and a large top and a small bottom, a lower annular baffle is arranged on a step surface in the floor drain frame, an outer water seal groove is formed in a gap between the floor drain frame and the lower annular baffle, an inner water seal groove is formed in a gap between the lower annular baffle and the buoyancy ball cover, an inner annular baffle and an outer annular baffle are arranged on the bottom surface of the floor drain cover, the inner annular baffle is located in the inner water seal groove, the outer annular baffle is located in the outer water seal groove, a water flow channel is formed in a gap between the floor drain frame, the inner annular baffle, the lower annular baffle, the annular baffle and the buoyancy ball cover, and a plurality of water filtering holes are formed in the floor drain cover above the outer water seal groove at intervals along the. The floor drain frame is of a stepped cylindrical structure with an open top and a large upper part and a small lower part, an outer water seal groove is formed in a gap between the floor drain frame and the lower annular baffle, an inner water seal groove is formed in a gap between the lower annular baffle and the buoyancy ball cover, the inner annular baffle, the inner water seal groove, the outer annular baffle and the outer water seal groove are matched with each other, so that the double-water-seal-groove structure is provided, the water seal quantity is large, the drying is difficult, the water seal time is long, the effect is good, the lower annular baffle and the buoyancy ball cover can play a role in blocking, sundries can be deposited in the outer water seal groove and the inner water seal groove, the phenomenon that the sundries in water are brought into the water guide pipe to avoid blocking the water guide pipe is reduced, and.
Preferably, the middle part of the floor drain cover is recessed to form an assembly groove, and the assembly groove is provided with a semi-circular arc-shaped rotating handle. The rotary handle is arranged in the assembly groove and used for lifting, so that the floor drain cover can be conveniently taken and placed.
Preferably, the bottom surface of the floor drain cover is provided with a support body, the support body is in a circular truncated cone shape, the upper end of the support body is fixedly connected with the floor drain cover, and the lower end of the support body is in contact with the buoyancy ball cover. The supporting body in the shape of the circular truncated cone plays roles of supporting and limiting, the floor drain cover can be stably placed, and the inclined outer side face of the supporting body is favorable for guiding water to the water inlet hole.
Preferably, an internal thread sleeve is arranged at the bottom in the floor drain frame, and the buoyancy ball cover is in threaded connection with the internal thread sleeve. The buoyancy spherical cover is in threaded connection with the internal thread sleeve, so that the connection is firm, the sealing performance is good, and the disassembly and the assembly are very convenient.
Preferably, the buoyancy sealing head is conical, and the edge of the buoyancy sealing head is bent upwards to form a stable curled edge. The buoyancy sealing head is conical and has a guiding effect, so that the conical top part of the buoyancy sealing head easily enters the water guide pipe to close an outlet at the lower end of the water guide pipe, the buoyancy sealing head can be kept balanced by the stable turned edge, the conical top part of the buoyancy sealing head can accurately enter the water guide pipe, and the sealing effect is ensured.
Preferably, the left baffle plate group and the right baffle plate group respectively comprise a pair of baffle plates which are arranged oppositely, and the edge of the free end of each baffle plate is bent outwards to form a limiting lip. The baffle and the buoyancy ball cover are enclosed to form a buoyancy ball cavity, and the limit lip is used for preventing the buoyancy ball from falling into the water guide pipe.
Therefore, the invention has the following beneficial effects:
(1) the siphon action of the siphon channel can enable water to quickly enter the water guide pipe, and the water drainage speed is high;
(2) through the matching of the buoyancy ball and the buoyancy ball cover, when the water flow is too large, the water in the buoyancy ball cover cannot be discharged in time, the buoyancy ball cover can be gradually filled with water, and the water inlet is sealed by the buoyancy ball under the action of buoyancy, so that water return is prevented;
(3) the inner annular baffle and the inner water seal groove are matched with each other, the outer annular baffle and the outer water seal groove are matched with each other, so that the double-water seal groove structure is provided, the water seal amount is large, the drying is not easy, the water seal time is long, the effect is good, the lower annular baffle and the buoyancy ball cover can play a role in blocking, sundries can be settled in the outer water seal groove and the inner water seal groove, the sundries brought into the aqueduct in water are reduced, the aqueduct is prevented from being blocked, and the cleaning is very convenient;
(4) the buoyancy sealing head moves downwards under the action of the pressure and the impact force of water so as to open the opening at the bottom of the water guide pipe, and can float under the action of the buoyancy of the water in the water sealing cavity to close the opening at the bottom of the water guide pipe again, so that the automatic opening and closing of the opening at the bottom of the water guide pipe are realized, and the effects of deodorization and insect prevention are achieved.
(5) The buoyancy sealing head is conical and has a guiding function, so that the conical top part of the buoyancy sealing head easily enters the water guide pipe to close an outlet at the lower end of the water guide pipe;
(6) the stable curling edge can keep the buoyancy sealing head balanced, and the conical top part of the buoyancy sealing head can accurately enter the water guide pipe, so that the sealing effect is ensured.
Drawings
FIG. 1 is a cross-sectional view of one configuration of the present invention.
Figure 2 is a top view of the buoyant spherical cover of the present invention.
Fig. 3 is a sectional view taken along a-a in fig. 2.
FIG. 4 is a sectional view taken along the line B-B in FIG. 2
Figure 5 is a top view of the floor drain cover of the present invention.
In the figure: the floor drain comprises a floor drain frame 1, a floor drain cover 2, a water guide pipe 3, an outer sleeve 4, a buoyancy ball cover 5, a buoyancy sealing head 6, a water outlet 7, an overflow gap 8, a water sealing cavity 9, a left buoyancy ball cavity 10, a right buoyancy ball cavity 11, a buoyancy ball 12, a siphon channel 13, a water inlet hole 14, a lower annular baffle 15, an outer water sealing groove 16, an inner water sealing groove 17, an inner annular baffle 18, an outer annular baffle 19, a water flow channel 20, a water filtering hole 21, an assembly groove 22, a rotating handle 23, a support body 24, an inner thread sleeve 25, a stabilizing turned edge 26, a baffle 27 and a limiting lip edge 28.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in figures 1 and 2, the double-buoyancy-ball anti-overflow floor drain comprises a floor drain frame 1, a floor drain cover 2, a water guide pipe 3, an outer sleeve 4, a buoyancy ball cover 5 and a buoyancy sealing head 6, wherein the floor drain cover is arranged on the floor drain frame, the floor drain frame is of a stepped cylindrical structure with an open top and a large top and a small bottom, a lower annular baffle 15 is fixed on the shoulder of the inner step surface of the floor drain frame, the lower annular baffle is lower than the upper end surface of the floor drain frame, an outer water sealing groove 16 is formed by the gap between the floor drain frame and the lower annular baffle, an inner water sealing groove 17 is formed by the gap between the lower annular baffle and the buoyancy ball cover, an assembly groove 22 (shown in figure 5) is formed by the middle part of the floor drain cover, a semi-circular rotary handle 23 is arranged in the assembly groove, the rotary handle is rotatably connected with the floor drain cover through pin shafts at two ends, an inner annular baffle 18 and an outer annular baffle 19 are formed by the downward protrusion of the, an outer annular baffle is positioned in an outer water seal groove, a water flow channel 20 is formed by gaps among a floor drain frame, an inner annular baffle, a lower annular baffle, the annular baffle and a buoyancy ball cover, a plurality of water filtering holes 21 are formed on a floor drain cover positioned above the outer water seal groove at intervals along the circumference, a water outlet 7 is formed at the bottom of the floor drain frame, the upper end of a water guide pipe is fixed at the bottom of the floor drain frame and communicated with the water outlet, an outer sleeve is sleeved outside the water guide pipe, the upper end of the outer sleeve is fixedly connected with the bottom of the floor drain frame, the lower end of the outer sleeve is sealed, an overflow port 8 is formed in the middle of the outer sleeve, a water sealing cavity 9 is formed by the gap between the outer sleeve and the water guide pipe positioned below the overflow port, a buoyancy sealing head is positioned in the water sealing cavity between the lower end of the water guide pipe and the bottom of the outer sleeve, the buoyancy, the buoyancy spherical cover is of a bottom opening structure, the buoyancy spherical cover is positioned above the water outlet and is in threaded connection with the internal thread sleeve, a support body 24 is fixed on the bottom surface of the floor drain cover, the support body is in a circular truncated cone shape, the upper end of the support body is fixedly connected with the floor drain cover, the lower end of the support body is in contact with the buoyancy spherical cover, a left baffle plate group and a right baffle plate group are fixed in the buoyancy spherical cover, the left baffle plate group and the right baffle plate group respectively comprise a pair of baffles 27 (shown in figures 3 and 4) which are oppositely arranged, the edge of the free end of each baffle plate is outwards bent to form a limiting lip 28, a left buoyancy spherical cavity 10 is formed in a gap between each baffle plate in the left baffle plate group and the buoyancy spherical cover, a right buoyancy spherical cavity 11 is formed in a gap between each baffle plate in the right baffle plate group and the buoyancy spherical cover, buoyancy spheres 12 are arranged in the left buoyancy spherical cavity and the right buoyancy spherical, the diameter of the water inlet is smaller than that of the buoyancy ball, and the buoyancy ball is matched with the water inlet.
The operation principle of the invention is as follows: when water flow enters the buoyancy ball cover from the water inlet through the water flow channel after being filtered by the water filtering holes on the floor drain cover, the buoyancy ball is pressed at the bottoms of the left buoyancy ball cavity and the right buoyancy ball cavity under the impact of the water flow and the action of self gravity, the water flow quickly enters the water guide pipe along the surface of the buoyancy ball under the siphoning action of the siphoning channel, the buoyancy sealing head moves downwards under the action of the pressure and the impact force of the water to open the opening at the bottom of the water guide pipe, the water is discharged into the sewer pipe from the overflow port through the water sealing cavity, when the water flow is too large, the water in the buoyancy ball cover is not discharged in time, the buoyancy ball cover is gradually filled with the water, the buoyancy ball gradually floats upwards under the action of the buoyancy to seal the water inlet so as to prevent water backflow, when the drainage is stopped, the water in the water sealing cavity forms a bottom water sealing, and meanwhile, the buoyancy sealing head floats under the action of the water in the water, thereby playing the roles of deodorization and insect prevention, and the water in the inner water seal groove and the outer water seal groove forms a transverse double water seal.
The invention has novel and ingenious structure, high drainage speed and good sealing effect, can effectively prevent overflow, can be used in various places such as bathrooms, toilets, kitchens, balconies and the like, and has great popularization and application values.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (3)
1. The double-buoyancy-ball anti-return overflow floor drain is characterized by comprising a floor drain frame (1), a floor drain cover (2), a water guide pipe (3), an outer sleeve (4), a buoyancy ball cover (5) and a buoyancy sealing head (6), wherein the floor drain cover is arranged on the floor drain frame, the middle part of the floor drain cover is recessed to form an assembly groove (22), the assembly groove is provided with a semi-circular arc-shaped rotating handle (23), the bottom surface of the floor drain cover is provided with a support body (24), the support body is in a circular truncated cone shape, the bottom of the floor drain frame is provided with a water outlet (7), the upper end of the water guide pipe is fixed on the bottom surface of the floor drain frame and communicated with the water outlet, the outer sleeve is sleeved outside the water guide pipe, the upper end of the outer sleeve is fixedly connected with the bottom surface of the floor drain frame, the lower end of the outer sleeve is sealed, the middle outer sleeve, the buoyancy sealing head is positioned in a water seal cavity between the lower end of the water guide pipe and the bottom of the outer sleeve, the buoyancy sealing head is matched with an outlet at the lower end of the water guide pipe, the buoyancy sealing head is conical, the edge of the buoyancy sealing head is bent upwards to form a stable turned edge (26), the buoyancy ball cover is fixed at the bottom of the floor drain frame above the water outlet, the buoyancy ball cover is of a bottom open structure, the upper end of the support body is fixedly connected with the floor drain cover, the lower end of the support body is contacted with the buoyancy ball cover, a left baffle group and a right baffle group are arranged in the buoyancy ball cover, a left buoyancy ball cavity (10) is formed by a gap between the left baffle group and the buoyancy ball cover, a right buoyancy ball cavity (11) is formed by a gap between the right baffle group and the buoyancy ball cover, buoyancy balls (12) are arranged in the left buoyancy ball cavity and the right buoyancy ball cavity, a siphon channel (13) is, the diameter of the water inlet is smaller than that of the buoyancy ball, and the buoyancy ball is matched with the water inlet; the floor drain frame is of a stepped cylindrical structure with an open top and a large top and a small bottom, a lower annular baffle (15) is arranged on a step surface in the floor drain frame, an outer water seal groove (16) is formed in a gap between the floor drain frame and the lower annular baffle, an inner water seal groove (17) is formed in a gap between the lower annular baffle and the buoyancy ball cover, an inner annular baffle (18) and an outer annular baffle (19) are arranged on the bottom surface of the floor drain cover, the inner annular baffle is located in the inner water seal groove, the outer annular baffle is located in the outer water seal groove, a water flow channel (20) is formed in a gap between the floor drain frame, the inner annular baffle, the lower annular baffle, the annular baffle and the buoyancy ball cover, and a plurality of water filtering holes (21) are formed in the floor drain cover above the.
2. The overflow-preventing floor drain with the double buoyancy balls as claimed in claim 1, wherein an internal thread sleeve (25) is arranged at the bottom of the floor drain frame, and the buoyancy ball cover is in threaded connection with the internal thread sleeve.
3. The double-buoyancy-ball overflow-preventing floor drain as claimed in claim 1, wherein each of the left baffle group and the right baffle group comprises a pair of oppositely-arranged baffles (27), and the free end edges of the baffles are bent outwards to form limiting lips (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810758791.2A CN108797771B (en) | 2018-07-11 | 2018-07-11 | Double-buoyancy ball overflow-preventing floor drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810758791.2A CN108797771B (en) | 2018-07-11 | 2018-07-11 | Double-buoyancy ball overflow-preventing floor drain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108797771A CN108797771A (en) | 2018-11-13 |
| CN108797771B true CN108797771B (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810758791.2A Active CN108797771B (en) | 2018-07-11 | 2018-07-11 | Double-buoyancy ball overflow-preventing floor drain |
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| Country | Link |
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| CN (1) | CN108797771B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112064759B (en) * | 2020-09-12 | 2021-08-20 | 玉环辰芯科技有限公司 | Quick-discharging type anti-reverse floor drain |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2631674B2 (en) * | 1988-04-29 | 1993-01-22 | Adrien Jean | ANTI-RETURN SIPHON |
| CN2281370Y (en) * | 1996-06-28 | 1998-05-13 | 潘太法 | Anti-backflow overflow |
| NO318288B1 (en) * | 2002-08-16 | 2005-02-28 | Add System As | Apparatus and method for dispensing a liquid into a cistern. |
| CN201746925U (en) * | 2010-03-26 | 2011-02-16 | 山西大学 | Multiple water sealed deodorization floor drain |
| CN202466799U (en) * | 2012-03-21 | 2012-10-03 | 刘荣家 | Floor drain |
| CN202809819U (en) * | 2012-09-25 | 2013-03-20 | 徐国新 | Stair-stepping floor drain with two water locks |
| CN203960996U (en) * | 2014-07-01 | 2014-11-26 | 太原金德尔洁具设备有限公司 | Large flow multi-ball type anti-backflowing drainage system |
| CN205206010U (en) * | 2015-12-07 | 2016-05-04 | 华亚东营塑胶有限公司 | Prevent returning floor drain subassembly that overflows |
| CN207363129U (en) * | 2017-10-24 | 2018-05-15 | 西北农林科技大学 | Energy utility system based on row's rain pipeline |
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2018
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| CN108797771A (en) | 2018-11-13 |
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Effective date of registration: 20201116 Address after: 322000 intellectual property cluster 201-1, building 2a, Yiwu science and technology entrepreneurship Park, 968 Xuefeng West Road, Yiwu City, Jinhua City, Zhejiang Province Applicant after: Yiwu hangying Technology Co., Ltd Address before: 322105 Zhejiang city of Jinhua province Dongyang City Song Town sokdam Village No. 1-353 Applicant before: Yu Quanfeng |
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