CN112066140A - Novel pipeline noise reduction equipment - Google Patents
Novel pipeline noise reduction equipment Download PDFInfo
- Publication number
- CN112066140A CN112066140A CN202010952856.4A CN202010952856A CN112066140A CN 112066140 A CN112066140 A CN 112066140A CN 202010952856 A CN202010952856 A CN 202010952856A CN 112066140 A CN112066140 A CN 112066140A
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- Prior art keywords
- ring
- pipe
- plate
- atress
- water flow
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02745—Throttle passages by passing through a mass of particles or a porous member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/0332—Noise absorbers by inserting a body of compressible material in the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
Abstract
The invention discloses a novel pipeline noise reduction device, which structurally comprises a water inlet pipe, a cleaning switch, a bent pipeline and a water outlet pipe, wherein the bent pipeline is provided with a compression ring, a buffer mechanism, a spherical plate, a steering channel and a plastic pipe, a spring rod on one side is compressed through the blocking stress of a blocking plate so as to buffer water flow and reduce the impact force of the water flow, the buffered water flow is drained from a circulating pipe, the phenomenon that the free falling body of the water flow descends to impact vibration to generate noise is avoided, the stress is blocked on a curved groove-shaped structure on the upper surface of a blocking strip so that a stressed block is bent downwards, when a gap exists, the stress of the blocking strip is uneven, the outer side of a rotating block is attached to a ball body in the friction ring to be stressed, the blocking mechanism is buffered, the blocking mechanism rotates in the friction ring to enhance the resistance to the water flow, and the water flow is tighter, the gap is prevented from being generated, the water flow sound is prevented from being transmitted in the gap during backflow, and the noise is prevented from being transmitted in the closed pipeline.
Description
Technical Field
The invention relates to the field of noise reduction, in particular to novel pipeline noise reduction equipment.
Background
U type water pipe has the effect that turns to rivers, rivers impact U type pipe and produce the noise in comparatively silent night, thereby the water pipe diffuses the noise through the vibration transmission, the current method of making an uproar of falling adopts soundproof cotton parcel this kind of mode can effectually play the noise reduction sound insulation effect, the transmission of noise reduction, but rivers make rivers produce the backward flow by the power of blockking of its bottom when flowing in U type pipe, rivers produce the clearance easily during the backward flow and make the noise transmit in inclosed pipeline, increase the noise volume under the effect of pipeline inside clearance reverberation, rivers free fall descends to strike simultaneously, thereby produce great impact to U type bottom of pipe, the volume of noise has been increased.
Disclosure of Invention
The invention is realized by the following technical scheme: the utility model provides a novel equipment of making an uproar falls in pipeline, its structure includes oral siphon, clearance switch, crooked pipeline, outlet pipe, the oral siphon is located crooked pipeline left side upper end, the clearance switch inlays at crooked pipeline lower extreme, the outlet pipe inlays at crooked pipeline right side upper end, crooked pipeline is equipped with compression ring, buffer gear, spherical plate, turns to passageway, plastic pipe, the compression ring inlays the inboard at the plastic pipe, buffer gear inlays at the plastic pipe inboardly, spherical plate is installed and is turning to the passageway lower extreme, spherical plate and plastic pipe screw-thread fit, the compression ring is located the buffer gear upper end, the compression ring is located the oral siphon lower extreme, spherical plate is linear arrangement on circular structure, has the effect that blocks rivers.
As a further improvement of the invention, the buffer mechanism is provided with a stress plate, a stress mechanism and a circular hole, the circular hole is positioned on the surface of the stress mechanism, the stress mechanism is attached to the right side of the stress plate, the stress plate is embedded and fixed on the inner side of the plastic pipe, the stress mechanism is in an annular bending structure, and meanwhile, the inner part of the circular hole is in a trapezoidal shape, so that the buffer mechanism has the effect of smaller resistance to water flow.
The invention is further improved, the stress mechanism is provided with a spring rod, a rubber ball, a runner pipe, a mounting plate, a drainage mechanism and a stress groove, the runner pipe is positioned at the lower left side of the stress groove, the rubber ball is positioned in the middle of the spring rod, the rubber ball is attached to the inner side of the drainage mechanism, the drainage mechanism is embedded and fixed in the stress groove, the stress groove is positioned at the inner side of the mounting plate, the spring rod is welded on the surface of the stress plate, the runner pipe and the stress plate are of an integrated structure, the runner pipe is connected with the stress groove through a hole, and the spring rod is embedded and fixed in the inner side of the drainage mechanism.
As a further improvement of the invention, the drainage mechanism is provided with a curved groove, a blocking plate, a sliding block and a curved plate, the blocking plate is arranged on the surface of the curved groove, the curved groove is positioned on two sides of the sliding block, the curved plate and the sliding block are of an integrated structure, the lower end of the curved plate is embedded and fixed outside the spring rod, and the blocking plate is uniformly and symmetrically distributed on the surface of the curved plate and is of an inclined structure.
As a further improvement of the invention, the compression ring is provided with a rubber block, a blocking mechanism, a fixing ring, an elastic plate, a friction ring and an embedding ring, the rubber block is attached to the inner side of the embedding ring, the friction ring is embedded and fixed to the inner side of the fixing ring, the elastic plate is installed on the outer side of the fixing ring, the elastic plate is located at the lower end of the friction ring, the blocking mechanism is embedded and fixed to the inner side of the friction ring, the embedding ring is embedded and fixed to the inner side of the left end of the plastic pipe, a smooth sphere is arranged inside the friction ring and located on the outer side of the blocking mechanism, and the sphere on the surface of the lower end of the inner portion of the friction ring.
As a further improvement of the invention, the blocking mechanism is provided with a stress block, a rotating block and a blocking strip, wherein the stress block and the rotating block are positioned on the same central axis, the blocking strip is attached to the outer side of the stress block, the blocking strip is embedded and fixed at the inner side of the rotating block, the blocking strip is embedded and fixed in the friction ring, the upper surface of the blocking strip is of a curved groove-shaped structure, and the blocking mechanism has the effect of stress compression.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. during rivers get into crooked pipeline from the oral siphon, strike on buffer gear inboard through the compression ring, trapezoidal shape through the circular port inside, reduce resistance to rivers, avoid rivers too big to the effort on atress mechanism surface, make rivers pass through the circular port and get into the inside buffering of atress mechanism, then strike drainage mechanism in atress inslot portion, impact in-process rivers from sliding block landing to curved groove, through the atress that stops of barrier plate, make crooked board slope, then under the resilience force of rubber ball, compress the spring beam of one side, thereby cushion rivers, reduce the impact force of rivers, rivers after the buffering are drained from the runner pipe, avoid rivers free fall decline impact vibration and noise production.
2. When rivers pass through the compression ring, rivers act on the block rubber earlier, make rivers circulation diameter diminish, be under the effect of atress piece to the barrier mechanism surface, and block the atress on the curved shape trough-shaped structure of barrier strip upper surface, the effect of atress compression has, make atress piece down crooked, when the clearance exists, the atress inequality of barrier strip, thereby the turning block outside and the inside spheroid laminating atress of friction ring, the friction ring slides at solid fixed ring inboard simultaneously, compress the elastic plate, make the buffer of barrier mechanism, make barrier mechanism rotate inside the friction ring, the reinforcing is to the resistance of rivers, it is comparatively inseparable between the rivers, prevent the production in clearance, rivers sound transmits in the clearance when avoiding backward flow, prevent that the noise from transmitting in inclosed pipeline.
Drawings
Fig. 1 is a schematic structural diagram of a novel pipeline noise reduction device according to the present invention.
Fig. 2 is a schematic side view of a curved duct according to the present invention.
Fig. 3 is a schematic cross-sectional three-dimensional structure diagram of a buffer mechanism according to the present invention.
FIG. 4 is a schematic side view of a portion k of a force-receiving mechanism according to the present invention.
Fig. 5 is a schematic perspective partial structure view of a drainage mechanism of the present invention.
FIG. 6 is a schematic side view of a compression ring according to the present invention.
Fig. 7 is a schematic perspective view of a blocking mechanism according to the present invention.
In the figure: the device comprises a water inlet pipe-1, a cleaning switch-2, a bent pipeline-3, a water outlet pipe-4, a compression ring-31, a buffer mechanism-32, a spherical plate-33, a diversion channel-34, a plastic pipe-35, a stress plate-321, a stress mechanism-322, a circular hole-323, a spring rod-a 1, a rubber ball-a 2, a circulation pipe-a 3, a mounting plate-a 4, a drainage mechanism-a 5, a stress groove-a 6, a curved groove-a 51, a blocking plate-a 52, a sliding block-a 53, a bent plate-a 54, a rubber block-w 1, a blocking mechanism-w 2, a fixed ring-w 3, an elastic plate-w 4, a friction ring-w 5, an embedded ring-w 6, a stress block-w 21, a rotating block-w 22 and a blocking strip-w 23.
Detailed Description
The technology of the present invention is further described with reference to the accompanying drawings:
example 1:
as shown in fig. 1-5:
the invention relates to a novel pipeline noise reduction device, which structurally comprises a water inlet pipe 1, a cleaning switch 2, a bent pipeline 3 and a water outlet pipe 4, wherein the water inlet pipe 1 is positioned at the upper end of the left side of the bent pipeline 3, the cleaning switch 2 is embedded at the lower end of the bent pipeline 3, the water outlet pipe 4 is embedded at the upper end of the right side of the bent pipeline 3, the bent pipeline 3 is provided with a compression ring 31, a buffer mechanism 32, a spherical plate 33, a steering channel 34 and a plastic pipe 35, the compression ring 31 is embedded at the inner side of the plastic pipe 35, the buffer mechanism 32 is embedded at the inner side of the plastic pipe 35, the spherical plate 33 is arranged at the lower end of the steering channel 34, the spherical plate 33 is in threaded fit with the plastic pipe 35, the compression ring 31 is positioned at the upper end of the buffer mechanism 32, the compression ring 31 is positioned at the lower end of the water inlet pipe 1, the spherical, avoid the water flow impact force to be too big and produce the bubble, prevent to form the vacuum clearance.
Wherein, buffer gear 32 is equipped with atress board 321, atress mechanism 322, circular port 323 is located atress mechanism 322 surface, atress mechanism 322 laminates on atress board 321 right side, atress board 321 inlays admittedly at plastic pipe 35 inboard, atress mechanism 322 is cyclic annular bending structure, and circular port 323 is inside to be trapezoidal shape simultaneously, has the effect to the less resistance of rivers, avoids rivers too big to the effort on atress mechanism 322 surface for rivers get into atress mechanism 322 through circular port 323 and inside cushions.
The force mechanism 322 is provided with a spring rod a1, a rubber ball a2, a circulating tube a3, an installation plate a4, a drainage mechanism a5 and a force-receiving groove a6, the circulating tube a3 is positioned on the left lower side of the force-receiving groove a6, the rubber ball a2 is positioned in the middle of the spring rod a1, the rubber ball a2 is attached to the inner side of the drainage mechanism a5, the drainage mechanism a5 is embedded in the force-receiving groove a6, the force-receiving groove a6 is positioned on the inner side of the installation plate a4, the spring rod a1 is welded on the surface of the force-receiving plate 321, the circulating tube a3 and the force-receiving plate 321 are of an integrated structure, the circulating tube a3 is connected with the force-receiving groove a6 through holes, the spring rod a1 is embedded in the inner side of the drainage mechanism a5, so that the drainage mechanism a5 is compressed when a force is received, and water is drained through the circulating tube a3, impact force of water flow.
The drainage mechanism a5 is provided with a curved groove a51, a blocking plate a52, a sliding block a53 and a curved plate a54, the blocking plate a52 is mounted on the surface of the curved groove a51, the curved groove a51 is located on two sides of the sliding block a53, the curved plate a54 and the sliding block a53 are of an integrated structure, the lower end of the curved plate a54 is embedded and fixed on the outer side of the spring rod a1, the blocking plate a52 is uniformly and symmetrically distributed on the surface of the curved plate a54 and is of an inclined structure, water flow slides onto the curved groove a51 from the sliding block a53, and the curved plate a54 is inclined through blocking of the blocking plate a52, so that the water flow is buffered, and the impact force of the water flow is reduced.
The embodiment has the following specific use modes and functions:
according to the invention, water flow enters the bent pipeline 3 from the water inlet pipe 1, is impacted on the inner side of the buffer mechanism 32 through the compression ring 31, and is impacted on the inner side of the stress mechanism 322 through the trapezoid shape in the circular hole 323, so that the resistance to the water flow is reduced, the excessive acting force of the water flow on the surface of the stress mechanism 322 is avoided, the water flow enters the stress mechanism 322 through the circular hole 323 for buffering, then is impacted on the drainage mechanism a5 in the stress groove a6, the water flow slides down to the curved groove a51 from the sliding block a53 in the impact process, the curved plate a54 is inclined through the blocking stress of the blocking plate a52, then is compressed on the spring rod a1 on one side under the resilience force of the rubber ball a2, so that the water flow is buffered, the impact force of the water flow is reduced, the buffered water flow is drained from the flow pipe a3, and the noise caused by the falling impact vibration of the water.
Example 2:
as shown in fig. 6-7:
the compression ring 31 is provided with a rubber block w1, a blocking mechanism w2, a fixing ring w3, an elastic plate w4, a friction ring w5 and an embedding ring w6, the rubber block w1 is attached to the inner side of the embedding ring w6, the friction ring w5 is embedded to the inner side of a fixing ring w3, the elastic plate w4 is mounted to the outer side of the fixing ring w3, the elastic plate w4 is located at the lower end of the friction ring w5, the blocking mechanism w2 is embedded to the inner side of the friction ring w5, the embedding ring w6 is embedded to the inner side of the left end of the plastic pipe 35, a smooth ball is arranged inside the friction ring w5 and located to the outer side of the blocking mechanism w2, and a ball on the surface of the lower end inside the friction ring w5 is attached to the lower end of the blocking mechanism w2, so that the blocking mechanism w2 can rotate when being stressed, resistance to water flow is enhanced, water flow is tight, and gaps are prevented from.
Wherein, stop mechanism w2 is equipped with atress piece w21, turning block w22, stop strip w23, atress piece w21 is located same central axis with turning block w22, stop strip w23 laminating in atress piece w21 outside, it is inboard at turning block w22 that stop strip w23 inlays, stop strip w23 inlays the inside at friction ring w5, stop strip w 23's upper surface is curved groove-shaped structure, has the compressed effect of atress for atress piece w21 is down crooked, blocks rivers, reduces the impact force of rivers.
The embodiment has the following specific use modes and functions:
according to the invention, when water flows through the compression ring 31, the water flow acts on the rubber block w1 firstly, so that the circulation diameter of the water flow is reduced, the rubber block w1 acts on the stress block w21 on the surface of the blocking mechanism w2, and the stress is blocked on the curved groove-shaped structure on the upper surface of the blocking strip w23, so that the stress compression effect is achieved, the stress block w21 bends downwards, when a gap exists, the stress of the blocking strip w23 is uneven, so that the outer side of the rotating block w22 is attached to a sphere inside the friction ring w5 and stressed, the friction ring w5 slides inside the fixing ring w3 and compresses the elastic plate w4, so that the blocking mechanism w2 buffers, the blocking mechanism w2 rotates inside the friction ring w5, the resistance to the water flow is enhanced, so that the water flows are tighter, the gap is prevented from being generated, the water flow sound is prevented from being transmitted in the gap during backflow, and the noise is prevented from being transmitted in a closed.
The technical scheme of the invention is utilized, or a similar technical scheme is designed by a person skilled in the art based on the inspiration of the technical scheme of the invention, so that the technical effects are achieved, and the technical scheme and the method fall into the protection scope of the invention.
Claims (6)
1. The utility model provides a novel equipment of making an uproar falls in pipeline, its structure includes oral siphon (1), clearance switch (2), crooked pipeline (3), outlet pipe (4), oral siphon (1) is located crooked pipeline (3) left side upper end, clearance switch (2) are inlayed and are fixed at crooked pipeline (3) lower extreme, outlet pipe (4) are inlayed and are fixed in crooked pipeline (3) right side upper end, its characterized in that:
crooked pipeline (3) are equipped with compression ring (31), buffer gear (32), spherical plate (33), turn to passageway (34), plastic pipe (35), compression ring (31) are inlayed in the inboard of plastic pipe (35), buffer gear (32) are inlayed in plastic pipe (35) inboardly, spherical plate (33) are installed in turning to passageway (34) lower extreme, spherical plate (33) and plastic pipe (35) screw-thread fit, compression ring (31) are located buffer gear (32) upper end, compression ring (31) are located oral siphon (1) lower extreme.
2. The novel pipe noise reduction device according to claim 1, wherein: buffer gear (32) are equipped with atress board (321), atress mechanism (322), circular port (323) are located atress mechanism (322) surface, atress mechanism (322) laminating is on atress board (321) right side, atress board (321) are inlayed and are fixed at plastic pipe (35) inboard.
3. The novel pipe noise reduction device according to claim 2, wherein: the forced mechanism (322) is provided with a spring rod (a 1), a rubber ball (a 2), a circulating pipe (a 3), an installation plate (a 4), a drainage mechanism (a 5) and a forced groove (a 6), the circulating pipe (a 3) is located on the left lower side of the forced groove (a 6), the rubber ball (a 2) is located in the middle of the spring rod (a 1), the rubber ball (a 2) is attached to the inner side of the drainage mechanism (a 5), the drainage mechanism (a 5) is embedded in the forced groove (a 6), the forced groove (a 6) is located on the inner side of the installation plate (a 4), the spring rod (a 1) is welded on the surface of the forced plate (321), and the circulating pipe (a 3) and the forced plate (321) are of an integrated structure.
4. A novel pipe noise reduction apparatus according to claim 3, wherein: drainage mechanism (a 5) is equipped with curved groove (a 51), baffle (a 52), sliding block (a 53), crooked board (a 54), baffle (a 52) are installed in curved groove (a 51) surface, curved groove (a 51) are located sliding block (a 53) both sides, crooked board (a 54) and sliding block (a 53) structure as an organic whole, crooked board (a 54) lower extreme is inlayed and is fixed in the spring beam (a 1) outside.
5. The novel pipe noise reduction device according to claim 1, wherein: compression ring (31) are equipped with rubber block (w 1), stop mechanism (w 2), solid fixed ring (w 3), elastic plate (w 4), friction ring (w 5), build ring (w 6), rubber block (w 1) laminating is being built at solid fixed ring (w 6) inboard, friction ring (w 5) is built at solid fixed ring (w 3) inboard, elastic plate (w 4) are installed in solid fixed ring (w 3) outside, elastic plate (w 4) are located friction ring (w 5) lower extreme, stop mechanism (w 2) are built at friction ring (w 5) inboard, it is inboard at plastic pipe (35) left end to build ring (w 6) in.
6. The novel pipe noise reduction device according to claim 5, wherein: the blocking mechanism (w 2) is equipped with atress piece (w 21), turning block (w 22), barrier strip (w 23), atress piece (w 21) is located same central axis with turning block (w 22), barrier strip (w 23) laminating is in atress piece (w 21) outside, barrier strip (w 23) is inlayed and is fixed at turning block (w 22) inboard, barrier strip (w 23) is inlayed and is fixed in the inside of friction ring (w 5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010952856.4A CN112066140B (en) | 2020-09-11 | 2020-09-11 | Novel pipeline noise reduction equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010952856.4A CN112066140B (en) | 2020-09-11 | 2020-09-11 | Novel pipeline noise reduction equipment |
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| CN112066140A true CN112066140A (en) | 2020-12-11 |
| CN112066140B CN112066140B (en) | 2021-11-12 |
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Citations (8)
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| US4035296A (en) * | 1964-04-23 | 1977-07-12 | Tii Corporation | System for pollution suppression |
| EP0519888A1 (en) * | 1991-06-19 | 1992-12-23 | GALATRON S.r.l. | Sound damper for hydrosanitary plants |
| CN109595418A (en) * | 2019-01-30 | 2019-04-09 | 吉林大学 | A kind of Anti-erosion tee pipe coupling |
| CN209977537U (en) * | 2019-05-22 | 2020-01-21 | 浙江新颖铜业有限公司 | Elbow with buffering and pressure-relieving functions |
| CN110985796A (en) * | 2019-11-08 | 2020-04-10 | 安徽莱鑫精密特种钢管有限公司 | Connecting elbow |
| CN210484971U (en) * | 2019-07-19 | 2020-05-08 | 京安工程有限公司 | Pressure reducing pore plate convenient for regulating pressure reducing amount |
| CN211395854U (en) * | 2019-12-03 | 2020-09-01 | 陶晓晓 | Building water supply and drainage anti-clogging device |
| CN211450009U (en) * | 2019-11-28 | 2020-09-08 | 张彦凤 | Hydraulic engineering drainage pipeline |
-
2020
- 2020-09-11 CN CN202010952856.4A patent/CN112066140B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035296A (en) * | 1964-04-23 | 1977-07-12 | Tii Corporation | System for pollution suppression |
| EP0519888A1 (en) * | 1991-06-19 | 1992-12-23 | GALATRON S.r.l. | Sound damper for hydrosanitary plants |
| CN109595418A (en) * | 2019-01-30 | 2019-04-09 | 吉林大学 | A kind of Anti-erosion tee pipe coupling |
| CN209977537U (en) * | 2019-05-22 | 2020-01-21 | 浙江新颖铜业有限公司 | Elbow with buffering and pressure-relieving functions |
| CN210484971U (en) * | 2019-07-19 | 2020-05-08 | 京安工程有限公司 | Pressure reducing pore plate convenient for regulating pressure reducing amount |
| CN110985796A (en) * | 2019-11-08 | 2020-04-10 | 安徽莱鑫精密特种钢管有限公司 | Connecting elbow |
| CN211450009U (en) * | 2019-11-28 | 2020-09-08 | 张彦凤 | Hydraulic engineering drainage pipeline |
| CN211395854U (en) * | 2019-12-03 | 2020-09-01 | 陶晓晓 | Building water supply and drainage anti-clogging device |
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| CN112066140B (en) | 2021-11-12 |
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Effective date of registration: 20211028 Address after: 276300 in the Management Committee of Yinan Economic Development Zone, Linyi City, Shandong Province Applicant after: Shandong Yinan park development and Construction Co.,Ltd. Address before: Room 101, No.70, Guangshan 4th Road, Huangpu District, Guangzhou City, Guangdong Province Applicant before: Shangte (Guangzhou) robot intelligent equipment Co.,Ltd. |
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