CN112303335B - Water conservancy pipeline salvagees and uses quick connect structure - Google Patents
Water conservancy pipeline salvagees and uses quick connect structure Download PDFInfo
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- CN112303335B CN112303335B CN202011211543.XA CN202011211543A CN112303335B CN 112303335 B CN112303335 B CN 112303335B CN 202011211543 A CN202011211543 A CN 202011211543A CN 112303335 B CN112303335 B CN 112303335B
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/09—Accessories therefor, e.g. anchors for bringing two tubular members closer to each other
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/10—Accessories therefor, e.g. anchors for aligning
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a quick connecting structure for rush repair of a water conservancy pipeline, which comprises a base, wherein a first clamping mechanism for fixing a pipeline is movably arranged on one side of the base, and a second clamping mechanism for fixing a rush repair pipe is movably arranged on the other side of the base; the second clamping mechanism is installed on the installation piece, a through hole for the installation piece to horizontally pass through is formed in the sliding piece, the installation piece penetrates through the through hole in a sliding mode, and the sliding piece is vertically movably connected with the base; the first clamping mechanism is used for fixing the pipeline in the water conservancy pipeline, then the second clamping mechanism is used for fixing the rush-repair pipe which needs to be replaced and is in butt joint with the pipeline in the water conservancy pipeline, and the first clamping mechanism and the second clamping mechanism can be used for adapting to pipelines with different diameters; the horizontal positions of the second clamping mechanism and the emergency repair pipe fixed on the second clamping mechanism are adjusted through the transverse adjusting structure, so that the emergency repair pipe is coaxial with a pipeline in a water pipeline.
Description
Technical Field
The invention relates to a water conservancy rush-repair tool, in particular to a quick connection structure for rush-repair of a water conservancy pipeline.
Background
In the use process of urban water supply pipelines, due to factors such as building or road construction, the pipelines can be leaked or damaged, and particularly, the water supply pipes are easy to cause accidents.
Need salvage fast after the occurence of failure, the water economy resource, and the actual process of salvageing is accomplished under the inside medium normal transportation condition of pipeline mostly. Because the medium in the pipeline is normally conveyed, certain fluid impact force exists during emergency repair.
In the prior art, when rush repair is carried out, a damaged or leaked pipeline is not directly replaced, but the damaged part of the pipeline is repaired, for example, a Haff type pipeline rush repair quick joint is adopted to carry out rush repair on an accident pipeline.
However, the first-aid repair method is obviously not suitable for the condition of large-area and large-range damage of the pipeline, when an accident is sent at the pipeline embedding position, the problem of leakage can not be solved obviously through a repair mode, at the moment, the first-aid repair can only be carried out through a replacement mode, and the impact force of flowing media is large, so that the butt-joint coaxiality of the pipeline and the butt-joint resistance of a port in the first-aid repair process are large.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides the quick connection structure for the rush repair of the water conservancy pipeline.
The invention adopts the following technical scheme to overcome the technical problems, and specifically comprises the following steps:
a quick connecting structure for rush repair of a water conservancy pipeline comprises a base, wherein a first clamping mechanism for fixing a pipeline is movably mounted on one side of the base, and a second clamping mechanism for fixing a rush repair pipe is movably arranged on the other side of the base;
the second clamping mechanism is installed on an installation piece, a through hole for the installation piece to horizontally pass through is formed in the sliding piece, the installation piece penetrates through the through hole and is connected with the through hole in a sliding mode, the sliding piece is vertically and movably connected with the base, a lifting assembly which is connected with the sliding piece and used for adjusting the longitudinal distance between the first clamping mechanism and the second clamping mechanism is installed on the base, and a transverse adjusting structure is further arranged between the sliding piece and the installation piece;
the base is provided with a long strip-shaped cavity, the side wall of the cavity is provided with a sliding groove, the external width of the sliding part is matched with the internal width of the cavity, and the side edge of the sliding part is provided with a strip-shaped bulge which is in sliding embedding with the sliding groove.
As a further scheme of the invention: the first clamping mechanism comprises a connecting shaft rotatably mounted on the base and two first clamping pieces rotatably connected to the connecting shaft, the two first clamping pieces are symmetrically arranged, and the two first clamping pieces are in a closed ring shape when being mutually attached;
the base is further provided with a power assembly for driving the two first clamping pieces to be tightly attached to each other.
As a still further scheme of the invention: the power assembly comprises two push rods horizontally penetrating through the base and connected with the base in a sliding manner, a moving part for fixing the two push rods, a rotating wheel rotatably mounted at one end of each push rod close to the first clamping piece, and a power structure for driving the moving part to move horizontally;
two the push rod is the front and back setting, and anterior the runner of push rod tip is with one of them the laminating of first holder outer wall, the rear the runner of push rod tip is with another the laminating of first holder outer wall.
As a still further scheme of the invention: the power structure comprises a clamping cylinder which is horizontally fixed on the moving part in a penetrating mode and a clamping piston rod which is connected with the output end of the clamping cylinder, wherein the clamping piston rod is fixed with the base.
As a still further scheme of the invention: the second clamping mechanism comprises two second clamping pieces symmetrically and movably arranged on the mounting piece, sleeves are fixed on the two second clamping pieces, the two sleeves are connected through a driving assembly, and the driving assembly is arranged on the mounting piece;
two the second holder all is semicircle form, two the second holder is complete annular when embracing.
As a still further scheme of the invention: the driving assembly comprises a bidirectional screw rod horizontally and rotatably mounted on the mounting piece, the two sleeves are symmetrically and threadedly connected to the bidirectional screw rod, and a manual wheel for driving the bidirectional screw rod to rotate is fixed at one end of the bidirectional screw rod;
sliding sleeves are fixed on the outer walls of the second clamping pieces, the sliding sleeves are connected with guide pieces in a horizontal sliding mode, and the guide pieces are horizontally fixed on the mounting pieces.
As a still further scheme of the invention: the lifting assembly comprises a threaded sleeve vertically fixed on the sliding piece, a lifting screw rod vertically and rotatably installed on the base and an adjusting wheel fixed at one end of the lifting screw rod;
the lifting screw rod is in threaded connection with the threaded sleeve.
As a still further scheme of the invention: the transverse adjusting structure comprises a transverse moving cylinder which penetrates through and is fixed on the sliding piece and a transverse moving piston rod which is connected with the output end of the transverse moving cylinder, and the end part of the transverse moving piston rod is fixed with the mounting piece.
After adopting the structure, compared with the prior art, the invention has the following advantages: the first clamping mechanism is used for fixing the pipeline in the water conservancy pipeline, then the second clamping mechanism is used for fixing the emergency repair pipe which needs to be replaced and is butted with the pipeline in the water conservancy pipeline, and the first clamping mechanism and the second clamping mechanism can be used for adapting to pipelines with different diameters; the horizontal position of the second clamping mechanism and the emergency repair pipe fixed on the second clamping mechanism is adjusted through the transverse adjusting structure, so that the emergency repair pipe is coaxial with a pipeline in a water conservancy pipeline, the lifting assembly is recycled to drive the sliding piece, the mounting piece and the second clamping mechanism to vertically move, the sliding piece, the mounting piece and the second clamping mechanism to be close to the first clamping mechanism, and the two pipes are butted and emergency repaired.
Drawings
FIG. 1 is a schematic structural diagram of a quick connection structure for water conservancy pipeline rush repair.
FIG. 2 is the plan view of first holder and push rod among water conservancy pipeline salvagees and uses quick connect structure.
FIG. 3 is a schematic structural diagram of a base, a cavity and a sliding part in a quick connection structure for water conservancy pipeline rush repair.
FIG. 4 is a top view of second holder and sleeve pipe in water conservancy pipeline salvagees and uses quick-connect structure.
In the figure: 1-a base; 2-a first clamp; 3-connecting the shaft; 4-a push rod; 5-rotating wheel; 6-a movable part; 7-a clamping cylinder; 8-clamping the piston rod; 9-lifting screw rods; 10-a regulating wheel; 11-a threaded sleeve; 12-a slide; 13-a mounting member; 14-traversing the piston rod; 15-a transverse moving cylinder; 16-a bidirectional lead screw; 17-a manual wheel; 18-a cannula; 19-a second clamp; 20-a sliding sleeve; 21-a guide.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element described herein as being "secured to" or "disposed on" another element may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Referring to fig. 1 to 4, in the embodiment of the invention, a quick connection structure for rush repair of a water conservancy pipeline comprises a base 1, wherein a first clamping mechanism for fixing a pipeline is movably installed on one side of the base 1, and a second clamping mechanism for fixing a rush repair pipe is movably arranged on the other side of the base 1; the second clamping mechanism is installed on an installation piece 13, a through hole for the installation piece 13 to horizontally pass through is formed in the sliding piece 12, the installation piece 13 penetrates through the through hole and is connected with the through hole in a sliding mode, the sliding piece 12 is vertically and movably connected with the base 1, a lifting assembly which is connected with the sliding piece 12 and used for adjusting the longitudinal distance between the first clamping mechanism and the second clamping mechanism is installed on the base 1, and a transverse adjusting structure is further arranged between the sliding piece 12 and the installation piece 13; specifically, the base 1 is provided with a long-strip-shaped cavity, the side wall of the cavity is provided with a sliding groove, the external width of the sliding part 12 is matched with the internal width of the cavity, and the side edge of the sliding part 12 is provided with a strip-shaped bulge which is in sliding embedded with the sliding groove.
When the first clamping mechanism is used, the first clamping mechanism is used for fixing the pipeline in the water conservancy pipeline, then the second clamping mechanism is used for fixing the rush repair pipe which needs to be replaced and is butted with the pipeline in the water conservancy pipeline, and the first clamping mechanism and the second clamping mechanism can be used for adapting to pipelines with different diameters; the horizontal position of second fixture and fixing the pipe of salvageing on second fixture is adjusted through horizontal adjustment structure for salvage the pipe coaxial with the pipeline in the water conservancy pipeline, recycle lifting unit and drive slider 12 and installed part 13 and the vertical removal of second fixture, be close to first fixture, realize two pipe butt joints and salvage.
In one embodiment of the present invention, the first clamping mechanism includes a connecting shaft 3 rotatably mounted on the base 1 and two first clamping members 2 rotatably connected to the connecting shaft 3, the two first clamping members 2 are symmetrically arranged, and the two first clamping members 2 surround to form a closed ring shape when being attached to each other;
the base 1 is also provided with a power assembly for driving the two first clamping pieces 2 to be tightly attached to each other.
When a pipeline needs to be fixedly clamped, firstly, one damaged side of the pipeline is sleeved between the two first clamping pieces 2, and then the power assembly works to drive the two first clamping pieces 2 to mutually close and clasp to fix the pipeline; similarly, after the first-aid repair is completed, the power assembly is driven reversely to enable a gap to be reserved between the two first clamping pieces 2 and the power assembly, and at the moment, the two first clamping pieces 2 can be opened to be separated from the pipeline.
In another embodiment of the present invention, the power assembly includes two push rods 4 horizontally penetrating through the base 1 and slidably connected to the base 1, a movable member 6 for fixing the two push rods 4, a rotating wheel 5 rotatably mounted at one end of the push rod 4 close to the first clamping member 2, and a power structure for driving the movable member 6 to move horizontally;
the two push rods 4 are arranged in a front-back manner, the rotating wheel 5 at the end part of the front push rod 4 is attached to the outer wall of one of the first clamping pieces 2, and the rotating wheel 5 at the end part of the rear push rod 4 is attached to the outer wall of the other first clamping piece 2;
when the power structure drives the moving part 6 to move horizontally and close to the base 1, the two rotating wheels 5 move along with the moving part so as to drive the two first clamping pieces 2 to rotate around the connecting shaft 3 to close the clamping pipeline.
In another embodiment of the present invention, the power structure comprises a clamping cylinder 7 horizontally penetrating and fixed on the movable member 6 and a clamping piston rod 8 connected to an output end of the clamping cylinder 7, wherein the clamping piston rod 8 is fixed with the base 1.
When the air pressure in the clamping cylinder 7 is increased, the clamping piston rod 8 is driven to extend out of the clamping cylinder 7, so that the movable piece 6 and the two push rods 4 are driven to be far away from the base 1; when the air pressure in the clamping cylinder 7 is reduced, the clamping piston rod 8 is driven to retract into the clamping cylinder 7, so that the movable part 6 and the two push rods 4 are driven to be close to the first clamping part 2.
In another embodiment of the present invention, the second clamping mechanism includes two second clamping members 19 symmetrically and movably disposed on the mounting member 13, a sleeve 18 is fixed on each of the two second clamping members 19, the two sleeves 18 are connected by a driving assembly, and the driving assembly is disposed on the mounting member 13;
the two second clamping pieces 19 are both semicircular, and are in a complete ring shape when the two second clamping pieces 19 are clasped.
The driving component can drive the two sleeves 18 to mutually approach or separate from each other, so as to drive the two second clamping pieces 19 to mutually approach or separate from each other, and thus the emergency repair pipe is fixedly clamped.
In a further embodiment of the present invention, the driving assembly comprises a bidirectional screw 16 horizontally and rotatably mounted on the mounting member 13, two sleeves 18 are symmetrically and threadedly connected to the bidirectional screw 16, and a manual wheel 17 for driving the bidirectional screw 16 to rotate is fixed at one end of the bidirectional screw 16;
in order to avoid the rotation of the sleeve 18 along the axis of the bidirectional screw 16, a sliding sleeve 20 is fixed on the outer wall of each of the two second clamping members 19, the sliding sleeve 20 is horizontally slidably connected with a guide member 21, and the guide member 21 is horizontally fixed on the mounting member 13.
Drive two-way lead screw 16 through rotating manual wheel 17 and rotate, utilize two-way lead screw 16 to drive two sleeve pipes 18 and draw close each other or alternate segregation to drive two second holders 19 and draw close each other or alternate segregation, prevent with the help of sliding sleeve 20 and guide 21 that drive sleeve pipe 18 and rotate when two-way lead screw 16 rotates, can be fixed with salvageing the pipe when two second holders 19 draw close each other.
In a further embodiment of the present invention, the lifting assembly comprises a threaded sleeve 11 vertically fixed on the sliding member 12, a lifting screw 9 vertically rotatably mounted on the base 1, and an adjusting wheel 10 fixed at one end of the lifting screw 9;
the lifting screw rod 9 is in threaded connection with the threaded sleeve 11;
the lifting screw rod 9 is driven to rotate by rotating the adjusting wheel 10, and the rotating lifting screw rod 9 drives the threaded sleeve 11 to vertically move along the axis of the lifting screw rod 9, so that the sliding piece 12 and the mounting piece 13 are driven to move up and down along with the lifting screw rod, and the distance between the first clamping mechanism and the second clamping mechanism is adjusted.
In another embodiment of the present invention, the lateral adjustment structure comprises a lateral cylinder 15 fixed on the sliding member 12 and a lateral piston rod 14 connected to an output end of the lateral cylinder 15, wherein an end of the lateral piston rod 14 is fixed to the mounting member 13;
the transverse moving cylinder 15 is used for driving the transverse moving piston rod 14 to horizontally stretch out and draw back so as to drive the mounting piece 13 to move along with the synchronous horizontal movement, the horizontal position of the second clamping mechanism is adjusted, and the first-aid repair pipe fixed on the second clamping mechanism is ensured to be coaxial with the pipeline fixed on the first clamping mechanism.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure allows variations. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (2)
1. A quick connecting structure for rush repair of a water conservancy pipeline comprises a base (1) and is characterized in that a first clamping mechanism for fixing a pipeline is movably mounted on one side of the base (1), and a second clamping mechanism for fixing a rush repair pipe is movably arranged on the other side of the base (1);
the second clamping mechanism is installed on an installation piece (13), the base (1) is vertically and movably connected with a sliding piece (12), a through hole for the installation piece (13) to horizontally pass through is formed in the sliding piece (12), the installation piece (13) penetrates through the through hole in a sliding connection mode, a lifting assembly which is connected with the sliding piece (12) and used for adjusting the longitudinal distance between the first clamping mechanism and the second clamping mechanism is installed on the base (1), and a transverse adjusting structure is further arranged between the sliding piece (12) and the installation piece (13);
the base (1) is provided with a strip-shaped cavity, the side wall of the cavity is provided with a sliding groove, the external width of the sliding part (12) is matched with the internal width of the cavity, and the side edge of the sliding part (12) is provided with a strip-shaped bulge which is in sliding embedding with the sliding groove;
the first clamping mechanism comprises a connecting shaft (3) rotatably mounted on the base (1) and two first clamping pieces (2) rotatably connected to the connecting shaft (3), the two first clamping pieces (2) are symmetrically arranged, and the two first clamping pieces (2) are in a closed circular ring shape when being attached to each other; the base (1) is also provided with a power assembly for driving the two first clamping pieces (2) to be tightly attached to each other; the power assembly comprises two push rods (4) horizontally penetrating through the base (1) and connected with the base (1) in a sliding manner, a moving part (6) for fixing the two push rods (4), a rotating wheel (5) rotatably installed at one end, close to the first clamping part (2), of each push rod (4), and a power structure for driving the moving part (6) to move horizontally; the two push rods (4) are arranged in a front-back mode, the rotating wheel (5) at the end part of the front push rod (4) is attached to the outer wall of one of the first clamping pieces (2), and the rotating wheel (5) at the end part of the rear push rod (4) is attached to the outer wall of the other first clamping piece (2); the power structure comprises a clamping cylinder (7) which horizontally penetrates through and is fixed on the movable piece (6) and a clamping piston rod (8) which is connected with the output end of the clamping cylinder (7), wherein the clamping piston rod (8) is fixed with the base (1);
the second clamping mechanism comprises two second clamping pieces (19) symmetrically and movably arranged on the mounting piece (13), sleeves (18) are fixed on the two second clamping pieces (19), the two sleeves (18) are connected through a driving assembly, and the driving assembly is arranged on the mounting piece (13); the two second clamping pieces (19) are semicircular and are in a complete ring shape when the two second clamping pieces (19) are clasped;
the driving assembly comprises a bidirectional screw rod (16) horizontally and rotatably mounted on the mounting part (13), the two sleeves (18) are symmetrically and threadedly connected to the bidirectional screw rod (16), and a manual wheel (17) for driving the bidirectional screw rod (16) to rotate is fixed at one end of the bidirectional screw rod (16); sliding sleeves (20) are fixed on the outer walls of the two second clamping pieces (19), the sliding sleeves (20) are horizontally and slidably connected with guide pieces (21), and the guide pieces (21) are horizontally fixed on the mounting piece (13);
the transverse adjusting structure comprises a transverse moving cylinder (15) fixed on the sliding piece (12) in a penetrating mode and a transverse moving piston rod (14) connected with the output end of the transverse moving cylinder (15), and the end portion of the transverse moving piston rod (14) is fixed with the mounting piece (13).
2. The quick connecting structure for the rush repair of the water conservancy pipeline according to claim 1, wherein the lifting assembly comprises a threaded sleeve (11) vertically fixed on the sliding member (12), a lifting screw rod (9) vertically and rotatably mounted on the base (1), and an adjusting wheel (10) fixed at one end of the lifting screw rod (9);
the lifting screw rod (9) is in threaded connection with the threaded sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211543.XA CN112303335B (en) | 2020-11-03 | 2020-11-03 | Water conservancy pipeline salvagees and uses quick connect structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011211543.XA CN112303335B (en) | 2020-11-03 | 2020-11-03 | Water conservancy pipeline salvagees and uses quick connect structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112303335A CN112303335A (en) | 2021-02-02 |
| CN112303335B true CN112303335B (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011211543.XA Active CN112303335B (en) | 2020-11-03 | 2020-11-03 | Water conservancy pipeline salvagees and uses quick connect structure |
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| CN (1) | CN112303335B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980191A (en) * | 1997-01-15 | 1999-11-09 | Trible; William | Rectangular tube clamping and maneuvering apparatus |
| CN207455055U (en) * | 2017-11-27 | 2018-06-05 | 三峡大学 | A kind of pipe robot |
| CN109973717B (en) * | 2019-05-20 | 2020-09-04 | 金湖县农副产品营销协会 | Running water conveying pipeline laying device |
| CN211371460U (en) * | 2019-12-28 | 2020-08-28 | 山东派德电器有限公司 | Connecting device for installation of floor heating pipe |
| CN111336317B (en) * | 2020-03-19 | 2020-12-11 | 金华馨菲科技有限公司 | Construction method for erecting petroleum and natural gas pipeline |
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2020
- 2020-11-03 CN CN202011211543.XA patent/CN112303335B/en active Active
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| CN112303335A (en) | 2021-02-02 |
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Effective date of registration: 20220629 Address after: 415500 No. 3, qiaojiahe neighborhood committee, Linan Town, Li County, Changde City, Hunan Province Applicant after: Zhang Ke Address before: 415500 No. 02037, group 2, Jiangxi village, Wangjiachang Town, Li County, Changde City, Hunan Province Applicant before: Zhu Jingjing |
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