CN209975696U - Drainage pipeline dredging device - Google Patents
Drainage pipeline dredging device Download PDFInfo
- Publication number
- CN209975696U CN209975696U CN201920544661.9U CN201920544661U CN209975696U CN 209975696 U CN209975696 U CN 209975696U CN 201920544661 U CN201920544661 U CN 201920544661U CN 209975696 U CN209975696 U CN 209975696U
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- China
- Prior art keywords
- base
- pipeline
- mounting rod
- wall
- sleeve
- 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.)
- Expired - Fee Related
Links
- 238000007790 scraping Methods 0.000 claims abstract description 43
- 239000010802 sludge Substances 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000035939 shock Effects 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000003252 repetitive effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000004140 cleaning Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Sewage (AREA)
- Cleaning In General (AREA)
Abstract
The utility model discloses a drainage pipeline dredging device, which comprises a base in the middle of a pipeline and a traction mechanism outside the pipeline, wherein the base is provided with an installation rod parallel to the axial direction of the pipeline, the installation rod is provided with scraping pieces, and the scraping pieces are spirally arranged on the installation rod; the outer wall of the base is provided with a roller supporting mechanism which rolls along the inner wall of the pipeline; the traction mechanism is connected with the base and used for driving the base to move along the axial direction of the pipeline, and when the base moves relatively, the scraping blade moves synchronously and scrapes sludge on the inner wall of the pipeline. The utility model discloses an adopt to be the doctor-bar that the heliciform was arranged, can remove the in-process at the base, utilize the clean pipeline inner wall of helical blade, realize the desilting of pipeline inner wall, do not need the base to come and go many times and carry out repetitive operation.
Description
Technical Field
The utility model relates to a pipeline desilting field, in particular to drainage pipe desilting device.
Background
Pipeline desilting work has become a significant job that is not negligible for the drainage department. A large amount of sundries are discharged into the drainage pipeline, and the pipeline is blocked due to the precipitation and sedimentation of cement sand in the capital construction site. The excessive flow of sewage and environmental pollution can be caused without dredging the pipeline.
The existing pipeline dredging mode is mainly realized by a high-pressure cleaning mode, a dredging mechanism in the pipeline and the like, such as a dredging trolley disclosed in a drainage pipeline cleaning device which is applied for in advance. In order to realize the directional movement of the dredging trolley, a fixed track is required to be arranged in the pipeline, and in the dredging process, the scraper on the dredging trolley can only carry out dredging on the fixed position, and the angle of the track is required to be changed for many times, so that the dredging operation of the whole pipeline can be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drainage pipe sediment removal device aims at improving the current desilting equipment and needs the angle that changes the desilting dolly many times and carry out the defect of repeated desilting.
In order to achieve the purpose, the utility model provides a drainage pipeline dredging device, which comprises a base in the middle of a pipeline and a traction mechanism outside the pipeline, wherein the base is provided with an installation rod parallel to the axial direction of the pipeline, the installation rod is provided with scraping pieces, and the scraping pieces are spirally arranged on the installation rod;
the outer wall of the base is provided with a roller supporting mechanism which rolls along the inner wall of the pipeline;
the traction mechanism is connected with the base and used for driving the base to move along the axial direction of the pipeline, and when the base moves relatively, the scraping blade moves synchronously and scrapes sludge on the inner wall of the pipeline.
Optionally, the number of the scraping blades is at least 2, and the scraping blades are arranged on the mounting rod in a spiral staggered mode.
Optionally, a sleeve is arranged on the mounting rod, and the scraping blade is connected with the mounting rod through the sleeve.
Optionally, the sleeve is clearance fit with the mounting rod;
the outer wall of the mounting rod is provided with a guide groove, and the length direction of the guide groove is parallel to the axial direction of the mounting rod;
the inner wall of the sleeve is provided with a clamping block, and the clamping block is embedded in the guide groove so that the sleeve is sleeved outside the mounting rod;
and the mounting rod is provided with a positioning pressing block, and the positioning pressing blocks are oppositely arranged at two ends of the sleeve so that the sleeve is fixed on the mounting rod.
Optionally, a clamping groove connected with the guide groove is formed in the inner wall of the mounting rod;
when the sleeve is rotated, the clamping block is embedded in the clamping groove.
Optionally, the detent groove is circumferentially disposed along the mounting rod.
Optionally, an elastic blocking piece is arranged at one end, far away from the guide groove, of the clamping groove;
when the scraping blade moves and scrapes the sludge on the inner wall of the pipeline, the clamping block extrudes the elastic separation blade to enable the elastic separation blade to deform.
Optionally, the roller supporting mechanism comprises a bracket, a guide block and a roller;
the guide block is connected with the base through the bracket;
the roller is arranged on the guide block;
when the base moves along the axial direction of the pipeline, the rollers roll relatively on the inner wall of the pipeline.
Optionally, the bracket is hinged to the base;
the shock absorption device is characterized in that a shock absorption assembly is arranged on the base, one end of the shock absorption assembly, which is far away from the base, is connected with the support and is used for absorbing shock of the support.
Optionally, the roller supporting mechanism is arranged at one end of the base close to the traction mechanism;
the mounting rod is arranged at one end, far away from the traction mechanism, of the base.
According to the technical scheme of the utility model, the scraping blades are spirally arranged, so that the inner wall of the pipeline can be cleaned by the spiral blades in the moving process of the base, the dredging of the inner wall of the pipeline is realized, and the base does not need to be repeatedly operated for multiple times; through setting up the base at the pipeline middle part to realize the base relative motion in the pipeline through gyro wheel supporting mechanism, need not be at the inside built-in track of pipeline, help simplifying processing steps, and can not produce the damage to the pipeline inside.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of the drainage pipeline dredging device of the present invention in use;
FIG. 2 is a schematic view of the internal structure of the pipe of FIG. 1 in a cleaning state;
FIG. 3 is a partial schematic view of the mounting bar of FIG. 2;
FIG. 4 is a schematic view of the sleeve of FIG. 3 in engagement with a mounting rod;
fig. 5 is a schematic view of the roller supporting mechanism in fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
101 | |
| 10 | Base seat | 11 | |
| 12 | |
13 | |
| 14 | |
20 | |
| 21 | |
22 | |
| 23 | |
24 | Clamping groove |
| 25 | |
26 | Positioning pressing block |
| 27 | Elastic baffle |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic view of a drainage pipeline dredging device of the present invention in a use state, fig. 2 is a schematic view of an internal structure of the pipeline in fig. 1 in a cleaning state, the present invention provides a drainage pipeline dredging device, which comprises a base 10 at the middle of the pipeline 100 and a traction mechanism 101 at the outside of the pipeline 100, wherein the base 10 is provided with a mounting rod 20 parallel to the axial direction of the pipeline 100, the mounting rod 20 is provided with a scraping blade 21, and the scraping blade 21 is spirally arranged on the mounting rod 20; the outer wall of the base 10 is provided with a roller supporting mechanism 11 rolling along the inner wall of the pipeline 100; the traction mechanism 101 is connected to the base 10, and is configured to drive the base 10 to move axially along the pipe 100, and when the base 10 moves relatively, the scraper 21 moves synchronously and scrapes off sludge on the inner wall of the pipe 100. In the pipeline, water flows from a water inlet to a water outlet, the traction mechanism 10 is arranged at one end of the water outlet of the pipeline 100, the base 10 is arranged at one end of the water inlet of the pipeline, the traction mechanism 101 is connected with the base 10, and when the traction mechanism 101 operates, the base 10 is driven by the traction mechanism 101 to move axially along the pipeline 100 inside the pipeline 100.
In design, the roller supporting mechanism 11 is used for supporting the base 10, so that the base 10 is suspended in the middle of the pipeline 100, and when the base 10 moves relatively under the traction of the traction mechanism 101, the roller supporting mechanism 11 moves synchronously along the axial direction of the pipeline 100, and meanwhile, the base 10 is always in a relatively suspended state.
The mounting rod 20 is fixedly or detachably connected to the base 10, the mounting rod 20 is arranged to be parallel to the axial direction of the pipeline 100, so that the scraper 21 is convenient to mount, when the base 10 moves from the water inlet to the water outlet of the pipeline 100, the direction of the base 10 facing the water outlet is the front end, the direction of the base 10 facing the water inlet is the rear end, the mounting rod 20 is preferably mounted at the rear end, when dredging is needed, the base 10 is firstly placed into the pipeline 100, when the base 10 is gradually pulled to move towards the inside of the pipeline 100, the mounting rod 20 and the scraper 21 on the mounting rod gradually contact with sludge on the inner wall of the pipeline 100, and when the pulling mechanism 101 continuously pulls the base 10 to move, the scraper 21 continuously cleans the sludge on the inner wall of the pipeline 10.
The scraping blade 21 is in a spiral blade structure, when the mounting rod 20 moves synchronously with the base 10, the scraping blade 21 gradually scrapes off sludge on the inner wall of the pipeline 10, and because the scraping blade 21 is in a spiral structure, the sludge scraped off from the inner wall of the pipeline 10 can flow along the spiral direction of the scraping blade 21, and damage caused by too large resistance on the scraping blade 21 is avoided.
Because the base 10 is relatively suspended inside the pipeline 10, the base 10 is not directly acted by silt on the inner wall of the pipeline 10, and the resistance of the whole structure in operation is reduced; because the base 10 is supported by the roller supporting mechanism 11, the traditional rail type design is not needed during dredging operation, and the damage to the inner wall of the pipeline 100 is reduced; because the position of the scraping blade 21 and the base 10 does not interfere, when the scraping blade 21 scrapes the sludge, the scraping blade 21 does not need to bypass the track in the existing design, and the scraping blade 21 can be used for one-time sludge removal without repeated operation.
The utility model discloses optionally, doctor-bar 21 is 2 at least groups, doctor-bar 21 is in be the heliciform dislocation and arrange on the installation pole 20. By adopting a plurality of groups of scraping pieces 21, the scraping pieces 21 are arranged in a staggered manner in a spiral shape, so that when dredging is carried out, the situation that the resistance of the scraping pieces 21 is gradually increased due to excessive accumulated sludge on the scraping pieces 21 is avoided.
Through adopting the mode that a plurality of groups of scraping blades 21 are arranged in a staggered mode, the sludge scraped by the scraping blades 21 can flow along the gaps between the adjacent scraping blades 21, and the scraped sludge can be directly washed and removed in a washing mode subsequently.
Referring to fig. 3, fig. 3 is a partial structural schematic view of the mounting rod in fig. 2, and according to an alternative embodiment of the present invention, a sleeve 22 is disposed on the mounting rod 20, and the scraper 21 is connected to the mounting rod 20 through the sleeve 22. By arranging the sleeve 22, the installation of the scraping blade 21 can be facilitated, and the integral forming processing of the scraping blade 21 and the sleeve 22 can be realized by adopting a pouring forming mode.
Referring to fig. 4, fig. 4 is a schematic view illustrating a manner of fitting the sleeve and the mounting rod in fig. 3, and further alternatively, the sleeve 22 is in clearance fit with the mounting rod 20; a guide groove 23 is formed in the outer wall of the mounting rod 20, and the length direction of the guide groove 23 is parallel to the axial direction of the mounting rod 20; a clamping block 25 is arranged on the inner wall of the sleeve 22, and the clamping block 25 is embedded in the guide groove 23, so that the sleeve 22 is sleeved outside the mounting rod 20; the mounting rod 20 is provided with a positioning pressing block 26, and the positioning pressing blocks 26 are oppositely arranged at two ends of the sleeve 22, so that the sleeve 22 is fixed on the mounting rod 20. The guide groove 23 is a semi-through groove, one end of the guide groove is open, the catch block 25 on the sleeve 22 is aligned with the guide groove 23, the sleeve 22 is moved towards the inside of the mounting rod 20, after the catch block 25 slides along the guide groove 23 in a directional manner to a specified position, the positioning pressing block 26 is pressed on two ends of the sleeve 22, so that the sleeve 22 is fixed on the mounting rod 20, and the axial movement of the sleeve 22 on the mounting rod 20 is limited.
Because during base 10 relative motion, doctor-bar 21 is heliciform structure, if not fix a position it, doctor-bar 21 can be relative rotation under the silt resistance, makes doctor-bar 21 is in form spiral helicine line type orbit in the pipeline 10, the cleaning surface that reduces greatly, the utility model discloses an adopt the screens piece 25 with guide way 23 mutually supports, can realize sleeve pipe 22's relatively fixed, can inject this moment doctor-bar 21's position, so that doctor-bar 21 with in the base 10 simultaneous movement in-process, can be right silt on the pipeline 10 inner wall is cleared up, avoids doctor-bar 21 relative rotation makes doctor-bar 21 keeps stable plane cleaning surface.
Further optionally, a clamping groove 23 connected with the guide groove 23 is formed on the inner wall of the mounting rod 20; when the sleeve 22 is rotated, the detent block 25 is inserted into the detent groove 24. Through setting up the screens groove 25, can make the screens piece 25 imbed in the screens groove 24, can conveniently be according to the settlement position installation sleeve pipe 22 this moment, realize the quick location of doctor-bar 21 mounted position.
Preferably, the detent groove 24 is disposed along a circumferential direction of the mounting rod 20. The sleeve 22 moves axially along the mounting rod 20, and at the same time, the catch block 25 moves along the guide groove 23, and when the position of the catch groove 24 is reached, the sleeve 22 rotates relative to the mounting rod 20 to position the sleeve 22.
Further optionally, an elastic stop piece 27 is arranged at one end of the blocking groove 24 far away from the guide groove 23; when the scraper 21 moves and scrapes the sludge on the inner wall of the pipeline 100, the position-locking block 25 presses the elastic blocking piece 27 to deform the elastic blocking piece 27. When the base 10 moves along the water inlet of the pipe 100 to the water outlet, the scraping blade 21 is subjected to the resistance of the sludge, and the scraping blade 21 is pressed towards the inside of the clamping groove 24; when there is a hard foreign matter on the inner wall of the pipeline 100 to block, the foreign matter is to the scraping blade 21 to generate an instant acting force, the scraping blade 21 is pushed by the acting force to the bottom of the clamping groove 24 to extrude the elastic blocking piece 27, when the elastic blocking piece 27 is extruded and deformed, a certain moving space can be provided for the clamping block 25, and then the scraping blade 21 can be prevented from being damaged due to the acting force of the foreign matter.
The utility model discloses optionally, gyro wheel supporting mechanism 11 includes support 12, guide block 13 and gyro wheel 14; the guide block 13 is connected with the base 10 through the bracket 12; the roller 14 is mounted on the guide block 13; when the base 10 moves axially along the pipe 100, the rollers 14 roll relatively on the inner wall of the pipe 100. The support 12 is the equipartition and is in at least 3 on the base 10, guide block 13 adopts the strip structure to reduce the resistance, gyro wheel 14 sets up guide block 13 faces pipeline 100 inner wall direction, works as the base 10 is in when the pipeline 100 internal motion, gyro wheel 14 is along pipeline 100 inner wall rolls.
Further optionally, the support 12 is hinged on the base 10; and a damping component is arranged on the base 10, one end of the damping component, which is far away from the base, is connected with the support 12 and is used for damping the support 12. By adopting the design of the hinge mode and the shock absorption assembly, when the inner wall of the pipeline 100 is slightly smaller, the bracket 12 can be pressed against the shock absorption assembly, so that the base 10 can realize the cleaning operation of the pipeline within a certain size range. Damping component can adopt the setting to be in spring on the base 10 also can adopt the setting to be in torsional spring on the base 10 has elastic deformation performance can.
Preferably, the roller supporting mechanism 11 is arranged at one end of the base 10 close to the traction mechanism 101; the mounting rod 20 is arranged at one end of the base 10 far away from the traction mechanism 101, so that the influence between the traction mechanism 101 and the scraping blade 21 on the mounting rod 20 is avoided.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A drainage pipeline dredging device comprises a base in the middle of a pipeline and a traction mechanism outside the pipeline, and is characterized in that an installation rod parallel to the axial direction of the pipeline is arranged on the base, scraping pieces are arranged on the installation rod, and the scraping pieces are spirally arranged on the installation rod;
the outer wall of the base is provided with a roller supporting mechanism which rolls along the inner wall of the pipeline;
the traction mechanism is connected with the base and used for driving the base to move along the axial direction of the pipeline, and when the base moves relatively, the scraping blade moves synchronously and scrapes sludge on the inner wall of the pipeline.
2. The drain pipe dredging device according to claim 1, wherein the scraping blades are at least 2 groups, and the scraping blades are spirally arranged on the mounting rod in a staggered manner.
3. The drain pipe dredging device of claim 1, wherein the mounting rod is provided with a sleeve, and the scraper is connected with the mounting rod through the sleeve.
4. A drainage pipeline dredging device as claimed in claim 3, wherein the sleeve is clearance fitted with the mounting rod;
the outer wall of the mounting rod is provided with a guide groove, and the length direction of the guide groove is parallel to the axial direction of the mounting rod;
the inner wall of the sleeve is provided with a clamping block, and the clamping block is embedded in the guide groove so that the sleeve is sleeved outside the mounting rod;
and the mounting rod is provided with a positioning pressing block, and the positioning pressing blocks are oppositely arranged at two ends of the sleeve so that the sleeve is fixed on the mounting rod.
5. The drainage pipeline dredging device of claim 4, wherein the inner wall of the mounting rod is provided with a clamping groove connected with the guide groove;
when the sleeve is rotated, the clamping block is embedded in the clamping groove.
6. A drainage pipeline dredging device as claimed in claim 5, wherein the retaining groove is provided circumferentially along the mounting rod.
7. The drainage pipeline dredging device of claim 6, wherein an elastic stop piece is arranged at one end of the blocking groove far away from the guide groove;
when the scraping blade moves and scrapes the sludge on the inner wall of the pipeline, the clamping block extrudes the elastic separation blade to enable the elastic separation blade to deform.
8. The drain pipe dredging device of claim 1, wherein the roller supporting mechanism comprises a bracket, a guide block and a roller;
the guide block is connected with the base through the bracket;
the roller is arranged on the guide block;
when the base moves along the axial direction of the pipeline, the rollers roll relatively on the inner wall of the pipeline.
9. A drainage pipeline dredging device as claimed in claim 8, wherein the bracket is hinged to the base;
the shock absorption device is characterized in that a shock absorption assembly is arranged on the base, one end of the shock absorption assembly, which is far away from the base, is connected with the support and is used for absorbing shock of the support.
10. The drain pipe dredging device of claim 8, wherein the roller supporting mechanism is provided at an end of the base adjacent to the traction mechanism;
the mounting rod is arranged at one end, far away from the traction mechanism, of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544661.9U CN209975696U (en) | 2019-04-19 | 2019-04-19 | Drainage pipeline dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544661.9U CN209975696U (en) | 2019-04-19 | 2019-04-19 | Drainage pipeline dredging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209975696U true CN209975696U (en) | 2020-01-21 |
Family
ID=69258844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920544661.9U Expired - Fee Related CN209975696U (en) | 2019-04-19 | 2019-04-19 | Drainage pipeline dredging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209975696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544671A (en) * | 2020-12-22 | 2021-03-26 | 福建工程学院 | Full-automatic safe bone sawing machine adopting double-cutter and multi-cutter to cut sequentially and control method thereof |
-
2019
- 2019-04-19 CN CN201920544661.9U patent/CN209975696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544671A (en) * | 2020-12-22 | 2021-03-26 | 福建工程学院 | Full-automatic safe bone sawing machine adopting double-cutter and multi-cutter to cut sequentially and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 603-605, hongyunge office building, Qiaoxiang Sandao, Xiangmihu street, Futian District, Shenzhen, Guangdong 518000 Patentee after: Haiteng creation (Shenzhen) Group Co.,Ltd. Address before: 603-605, hongyunge office building, Qiaoxiang Sandao, Xiangmihu street, Futian District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN HAITENG CONSTRUCTION ENGINEERING Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 |