CN112392413B - Connecting rod connector of screwdriver - Google Patents
Connecting rod connector of screwdriver Download PDFInfo
- Publication number
- CN112392413B CN112392413B CN202011359131.0A CN202011359131A CN112392413B CN 112392413 B CN112392413 B CN 112392413B CN 202011359131 A CN202011359131 A CN 202011359131A CN 112392413 B CN112392413 B CN 112392413B
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- connector
- head
- male
- female
- rod
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Links
- 238000004140 cleaning Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229920000297 Rayon Polymers 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 22
- 238000005553 drilling Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a connecting rod connector of a screwdriver, which comprises a male connector head and a female connector head, wherein T-shaped sliding rods are symmetrically fixed on the surface of one side of the female connector head, a sliding sleeve is movably sleeved on the surface of each T-shaped sliding rod, a spring sleeve is arranged at the joint of each sliding sleeve and each T-shaped sliding rod, each spring sleeve is sleeved outside each T-shaped sliding rod, a connecting rod is fixed on the top surface of each sliding sleeve, an inserting column is fixed on the top surface of each connecting rod, the tail end of each inserting column extends into the male connector head, and inserting grooves matched with the tail ends of the inserting columns are symmetrically formed in the surface of the male connector head; concave clamping plates are symmetrically arranged on the front and back surfaces of the male connector and the female connector, one end of each concave clamping plate extends into the male connector and the female connector, and clamping grooves matched with one ends of the concave clamping plates are formed in the front and back surfaces of the male connector and the female connector; the screw rod is worn to be equipped with in the inside of concave cardboard, and the screw rod runs through in the inside of connector public head and connector female.
Description
Technical Field
The invention relates to the technical field of mining drilling tools, in particular to a connecting rod connector of a screwdriver.
Background
At present need be connected between drilling rod and the drilling rod at mining well drilling in-process, but produce easily in the junction and connect the unstability, and the installation is dismantled inconveniently when connecting the operation, operating time extension, influence work efficiency, and under the strict environment of leakproofness requirement, the connection requirement to the drilling rod is than higher, require to not produce and reveal, and it is high to the fixed requirement of being connected between drilling rod and the drilling rod, the impact force to the drilling rod is great at the operation in-process, if the connection between the drilling rod is unstable, slide appears in the connection, cause droing of drilling rod easily, cause the operation to stop, therefore, need a connect stable device between the drilling rod, realize the connection between the drilling rod, guarantee the problem of leakproofness simultaneously, need use the utensil of turning round and connect the pole connector.
However, various screwdrivers on the market connect the pole connector still have various problems in the use, all do not solve the current screwdrivers and connect the pole connector and most directly use the bolt fastening when the concatenation, do not set up auxiliary device and carry out preliminary installation, make the bolt can not the complete locking position, thereby it is comparatively consuming time to lead to screwdrivers to connect the pole connector installation, the screwdrivers connects the pole connector when installing with the drilling rod in addition, the auxiliary device of setting can not enlarge the installation of screwdrivers and connecting pole connector and drilling rod, the scope of dismantlement, the inconvenience user uses the spanner to operate, for the installation between connector and the drilling rod, dismantle the problem of bringing inconvenience, we propose to have screwdrivers to connect the pole connector for this reason.
Disclosure of Invention
In order to overcome the defects of the prior art, the connecting rod connector of the screwdriver is convenient to be matched with an inserted column for use through the T-shaped sliding rod, the male head of the connector and the female head of the connector are preliminarily connected in a clamping mode, convenience is provided for subsequent installation of a screw rod and a nut, the installation time of the connector is shortened, the installation efficiency of the connector is improved, meanwhile, the T-shaped sliding rod is convenient to expand the installation and disassembly range between the connector and a drill rod so as to adapt to a spanner for operation, and convenience is provided for installation and disassembly between the connector and the drill rod.
In order to solve the technical problems, the invention provides the following technical scheme: the screw tool extension rod connector comprises a connector male head and a connector female head, wherein T-shaped slide rods are symmetrically fixed on the surface of one side of the connector female head, a sliding sleeve is movably sleeved on the surface of each T-shaped slide rod, a spring sleeve is arranged at the joint of the sliding sleeve and the T-shaped slide rods, the spring sleeve is sleeved outside the T-shaped slide rods, a connecting rod is fixed on the top surface of the sliding sleeve, an inserting column is fixed on the top surface of the connecting rod, the tail end of the inserting column extends into the connector male head, and inserting slots matched with the tail end of the inserting column are symmetrically formed in the surface of the connector male head; concave clamping plates are symmetrically arranged on the front and back surfaces of the male connector and the female connector, one end of each concave clamping plate extends into the male connector and the female connector, and clamping grooves matched with one ends of the concave clamping plates are formed in the front and back surfaces of the male connector and the female connector; a screw rod penetrates through the concave clamping plate, the screw rod penetrates through the interiors of the male connector head and the female connector head, a first thread groove matched with the screw rod is formed in the interiors of the male connector head and the female connector head, and a nut is connected to one end of the screw rod in a threaded manner; and a second thread groove is formed in the surface of one side of the male connector and the surface of one side of the female connector.
As a preferred technical scheme, mounting holes are formed in the surfaces of the male connector and the female connector and located on one side of the concave clamping plate, the mounting holes are communicated with the clamping grooves, a spring is arranged inside each mounting hole, a fixing block is fixed to one end of each spring, one side of each fixing block extends into the corresponding concave clamping plate, and fixing grooves matched with one sides of the fixing blocks are symmetrically formed in the surfaces of the concave clamping plates.
As a preferred technical scheme of the invention, the surface of the male connector and the surface of the female connector are both provided with model labels, and the model labels are circumferentially distributed on the surfaces of the male connector and the female connector.
As a preferable technical scheme of the present invention, a pull handle is fixed on a surface of one end of the insertion column located outside the insertion slot, and the pull handle has a circular shape in front view.
As a preferable technical scheme of the invention, the surface of the pull handle is provided with anti-skid grains, and the shape of the anti-skid grains is S-shaped.
As a preferable technical scheme of the invention, a pull rod is fixed on the surface of one side of the fixing block, which is positioned outside the fixing groove, and raised grains are arranged on the surface of the pull rod.
As a preferable technical scheme of the invention, the connector male head is provided with a water through hole, and the structure of the connector male head is consistent with that of the connector female head.
As a preferred technical scheme of the invention, the surface of the male head of the connector is provided with the fluorescent sheet, and the fluorescent sheet is fixedly connected with the male head of the connector through viscose glue.
As a preferred technical scheme of the invention, the inner side surface of the sliding sleeve is provided with a groove, and a cleaning brush is arranged inside the groove.
As a preferable technical scheme of the invention, an anti-skid pad is sleeved on the surface of one end of the T-shaped sliding rod, and a wear-resistant layer is arranged on the surface of the anti-skid pad.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. the T-shaped slide bar is convenient to be matched with an inserting column for use, the male head of the connector and the female head of the connector are preliminarily connected in a clamping mode, convenience is provided for subsequent installation of a screw and a nut, the installation time of the connector is reduced, the installation efficiency of the connector is improved, and meanwhile, the T-shaped slide bar is convenient to expand the installation and disassembly range between the connector and a drill rod so as to adapt to a spanner for operation, and convenience is provided for installation and disassembly between the connector and the drill rod;
2. through the fixed block, the fixed slot that set up, it is not hard up effectively to have avoided the junction of spill cardboard and the public head of connector, the female head of connector to produce, is favorable to consolidating being connected between spill cardboard and the public head of connector, the female head of connector, has guaranteed the installation effect of bolt.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of the male connector and the female connector of FIG. 1;
FIG. 3 is a side sectional view of the male connector and the female connector of FIG. 1;
FIG. 4 is a front connection cross-sectional view of the male connector, the female connector and the concave snap-gauge of FIG. 1 in accordance with the present invention;
wherein: 1. a male connector; 2. connecting a female head; 3. a T-shaped slide bar; 4. inserting a column; 5. a concave clamping plate; 6. a screw; 7. a fixed block; 8. a spring housing; 9. a sliding sleeve; 10. a connecting rod; 11. a slot; 12. a second thread groove; 13. a first thread groove; 14. a nut; 15. a card slot; 16. mounting holes; 17. a spring; 18. and fixing the grooves.
Detailed Description
The invention is described in detail below with reference to the drawings and examples.
Example (b):
as shown in fig. 1-3, the connecting rod connector of the screwdriver comprises a male connector 1 and a female connector 2, wherein T-shaped slide rods 3 are symmetrically fixed on the surface of one side of the female connector 2, a sliding sleeve 9 is movably sleeved on the surface of the T-shaped slide rods 3, a spring sleeve 8 is arranged at the joint of the sliding sleeve 9 and the T-shaped slide rods 3, the spring sleeve 8 is sleeved outside the T-shaped slide rods 3, a connecting rod 10 is fixed on the top surface of the sliding sleeve 9, an inserting column 4 is fixed on the top surface of the connecting rod 10, the tail end of the inserting column 4 extends into the male connector 1, and slots 11 matched with the tail end of the inserting column 4 are symmetrically arranged on the surface of the male connector 1; concave clamping plates 5 are symmetrically arranged on the front and back surfaces of the male connector 1 and the female connector 2, one end of each concave clamping plate 5 extends into the male connector 1 and the female connector 2, and clamping grooves 15 matched with one ends of the concave clamping plates 5 are formed in the front and back surfaces of the male connector 1 and the female connector 2; a screw 6 penetrates through the concave clamping plate 5, the screw 6 penetrates through the connector male head 1 and the connector female head 2, a first thread groove 13 matched with the screw 6 is formed in the connector male head 1 and the connector female head 2, and a nut 14 is connected to one end of the screw 6 in a threaded manner; the surfaces of one sides of the male connector 1 and the female connector 2 are both provided with a second thread groove 12;
firstly, pulling an inserting column 4 to one side, sliding a sliding sleeve 9 connected with the inserting column 4 through a connecting rod 10 on a T-shaped sliding rod 3, extruding a spring sleeve 8 by the sliding sleeve 9, compressing the spring sleeve 8, aligning a connector male head 1 with a connector female head 2, loosening the inserting column 4, clamping the tail end of the inserting column 4 into the inside of a slot 11 by means of the elasticity of the spring sleeve 8, performing preliminary clamping between the connector male head 1 and the connector female head 2, clamping two groups of concave clamping plates 5 into the insides of clamping grooves 15 formed in the surfaces of the connector male head 1 and the connector female head 2, forming first thread grooves 13 on the surfaces of the connector male head 1 contacted with the connector female head 2, sequentially screwing a screw 6 into the insides of the concave clamping plates 5 and the first thread grooves 13, and finally screwing a nut 14, thereby fixedly connecting the connector male head 1 with the connector female head 2 and completing the assembly of the connector, the 12 internally mounted drilling rods of second thread groove that the surface was seted up again at the public head 1 of connector and the female head 2 one end of connector, T shape slide bar 3 through setting up, be convenient for with insert post 4 and cooperate the use, carry out preliminary connection to the public head 1 of connector and the female head 2 of connector through the mode of joint, facilitate for subsequent screw rod 6 and nut 14's installation, the installation time of connector has been reduced, the installation effectiveness of connector has been improved, the T shape slide bar 3 that sets up simultaneously is convenient for enlarge the installation between connector and the drilling rod, the scope of dismantlement, operate with the adaptation spanner, installation between connector and the drilling rod, the dismantlement is facilitated.
In another embodiment, the embodiment discloses a reinforcing manner of the concave clamping plate 5, as shown in fig. 1 and 4, mounting holes 16 are formed in the surfaces of the male connector 1 and the female connector 2 and located on one side of the concave clamping plate 5, the mounting holes 16 are communicated with the clamping grooves 15, springs 17 are arranged inside the mounting holes 16, one ends of the springs 17 are fixed with the fixed block 7, one side of the fixed block 7 extends into the concave clamping plate 5, and fixing grooves 18 matched with one side of the fixed block 7 are symmetrically formed in the surface of the concave clamping plate 5;
when needs are with the public first 1 of spill cardboard 5 and connector, when consolidating between the female first 2 of connector, at first, set up mounting hole 16 on the surface of the public first 1 of connector and the female first 2 of connector, spring 17 elastic connection fixed block 7 is passed through in the inside of mounting hole 16, fixed slot 18 is all seted up on the both ends surface of spill cardboard 5, make one side of fixed block 7 go into the inside of fixed slot 18 with the help of spring 17's elasticity card, thereby to the public first 1 of spill cardboard 5 and connector, the junction of the female first 2 of connector is consolidated, fixed block 7 through setting up, fixed slot 18, spill cardboard 5 and the public first 1 of connector have effectively been avoided, the junction of the female first 2 of connector produces not hard uply, be favorable to consolidating the public first 1 of spill cardboard 5 and connector, the connection between the female first 2 of connector, the installation effect of bolt has been guaranteed.
In another embodiment, the present embodiment discloses model labels disposed on the surfaces of the male connector 1 and the female connector 2, as shown in fig. 1, the surfaces of the male connector 1 and the female connector 2 are both provided with model labels, and the model labels are circumferentially distributed on the surfaces of the male connector 1 and the female connector 2;
through setting up at the model label on connector public first 1 and the female 2 surfaces of connector, be convenient for explain the size of connector public first 1 and the female 2 of connector.
In another embodiment, the embodiment discloses a circular pull handle arranged on one end surface of the insert post 4 outside the slot 11, as shown in fig. 2, the pull handle is fixed on one end surface of the insert post 4 outside the slot 11, and the front view shape of the pull handle is circular;
through a circular pull handle arranged on the surface of one end of the inserting column 4 positioned outside the inserting groove 11.
In another embodiment, the embodiment discloses an "S" shaped anti-slip pattern arranged on the surface of the pull handle, as shown in fig. 2, the surface of the pull handle is provided with the anti-slip pattern, and the shape of the anti-slip pattern is "S" shaped;
through the S-shaped anti-skidding lines arranged on the surface of the pull handle, the pull handle is convenient to pull and plays an anti-skidding role.
In another embodiment, the embodiment discloses a pull rod fixed on one side surface of the fixed block 7, and the surface of the pull rod is provided with raised grains, as shown in fig. 4, the surface of one side of the fixed block 7, which is located outside the fixed groove 18, is fixed with the pull rod, and the surface of the pull rod is provided with raised grains;
through being fixed in the pull rod of fixed block 7 one side surface, and the surface of pull rod is provided with protruding line, conveniently stimulates fixed block 7.
In another embodiment, this embodiment discloses a water through hole formed on the connector male 1, and as shown in fig. 2 of the connector male 1 and the connector female 2, the connector male 1 is formed with a water through hole, and the structure of the connector male 1 is the same as that of the connector female 2;
the male connector 1 is provided with a water through hole, so that convenience is brought.
In another embodiment, the embodiment discloses a fluorescent sheet adhered to the surface of the male connector 1, as shown in fig. 1, the surface of the male connector 1 is provided with the fluorescent sheet, and the fluorescent sheet is fixedly connected with the male connector 1 through an adhesive;
through pasting the fluorescent sheet on the public head 1 surface of connector, be convenient for find the connector under the dark surrounds.
In another embodiment, the embodiment discloses a groove formed on the inner surface of the sliding sleeve 9 and a cleaning brush arranged inside the groove, as shown in fig. 2, the inner surface of the sliding sleeve 9 is provided with a groove, and the cleaning brush is arranged inside the groove;
through the groove arranged on the inner side surface of the sliding sleeve 9 and the cleaning brush arranged in the groove, dust on the surface of the T-shaped sliding rod 3 can be cleaned conveniently.
In another embodiment, the embodiment discloses a non-slip mat sleeved on the surface of the T-shaped sliding rod 3 and a wear-resistant layer arranged on the surface of the non-slip mat, as shown in fig. 2, the non-slip mat is sleeved on the surface of one end of the T-shaped sliding rod 3, and the wear-resistant layer is arranged on the surface of the non-slip mat;
the anti-slip mat is sleeved on the surface of the T-shaped sliding rod 3, so that the friction force between the anti-slip mat and an external object is increased, and the anti-slip mat is better in wear resistance through the wear-resistant layer arranged on the surface of the anti-slip mat.
Claims (10)
1. The rotary tool connects the pole connector, including the male head (1) of connector, female head (2) of connector, its characterized in that: the T-shaped sliding rods (3) are symmetrically fixed on the surface of one side of the female connector (2), a sliding sleeve (9) is movably sleeved on the surface of each T-shaped sliding rod (3), a spring sleeve (8) is arranged at the joint of each sliding sleeve (9) and each T-shaped sliding rod (3), each spring sleeve (8) is sleeved outside each T-shaped sliding rod (3), a connecting rod (10) is fixed on the top surface of each sliding sleeve (9), an inserting column (4) is fixed on the top surface of each connecting rod (10), the tail end of each inserting column (4) extends into the male connector (1), and slots (11) matched with the tail ends of the inserting columns (4) are symmetrically formed in the surface of the male connector (1); concave clamping plates (5) are symmetrically arranged on the front and back surfaces of the connector male head (1) and the connector female head (2), two ends of each concave clamping plate (5) extend into the connector male head (1) and the connector female head (2) respectively, and clamping grooves (15) matched with the end parts of the concave clamping plates (5) are formed in the front and back surfaces of the connector male head (1) and the connector female head (2); a screw rod (6) penetrates through the concave clamping plate (5), the screw rod (6) penetrates through the connector male head (1) and the connector female head (2), a first thread groove (13) matched with the screw rod (6) is formed in the connector male head (1) and the connector female head (2), and a nut (14) is connected to one end of the screw rod (6) in a threaded manner; and a second thread groove (12) is formed in the surface of one side of each of the male connector (1) and the female connector (2).
2. The screwdriver bit joint as recited in claim 1, wherein: mounting hole (16) have all been seted up on the surface of the public head of connector (1) and the female head of connector (2) and one side that is located spill cardboard (5), and mounting hole (16) communicate with each other with draw-in groove (15), the inside of mounting hole (16) is provided with spring (17), and the one end of spring (17) is fixed with fixed block (7), one side of fixed block (7) extends to the inside of spill cardboard (5), the surperficial symmetry of spill cardboard (5) seted up with fixed block (7) one side assorted fixed slot (18).
3. The screwdriver bit joint as recited in claim 1, wherein: the surface of the male connector (1) and the surface of the female connector (2) are provided with model labels, and the model labels are distributed on the surfaces of the male connector (1) and the female connector (2) in a circumferential mode.
4. The screwdriver extension bar connector as recited in claim 1, wherein: the pull handle is fixed on the surface of one end, located outside the slot (11), of the inserting column (4), and the front view shape of the pull handle is circular.
5. The screwdriver extension bar connector as recited in claim 4, wherein: the surface of the pull handle is provided with anti-skid grains, and the shape of the anti-skid grains is S-shaped.
6. The screwdriver bit joint as recited in claim 2, wherein: the surface of one side, positioned outside the fixing groove (18), of the fixing block (7) is fixedly provided with a pull rod, and the surface of the pull rod is provided with raised grains.
7. The screwdriver bit joint as recited in claim 1, wherein: the connector male head (1) is provided with a water through hole, and the structure of the connector male head (1) is consistent with that of the connector female head (2).
8. The screwdriver bit joint as recited in claim 1, wherein: the surface of the male connector (1) is provided with a fluorescent sheet, and the fluorescent sheet is fixedly connected with the male connector (1) through viscose.
9. The screwdriver bit joint as recited in claim 1, wherein: the inner side surface of the sliding sleeve (9) is provided with a groove, and a cleaning brush is arranged inside the groove.
10. The screwdriver extension bar connector as recited in claim 1, wherein: the anti-skidding device is characterized in that an anti-skidding pad is sleeved on one end surface of the T-shaped sliding rod (3), and a wear-resistant layer is arranged on the surface of the anti-skidding pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359131.0A CN112392413B (en) | 2020-11-27 | 2020-11-27 | Connecting rod connector of screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011359131.0A CN112392413B (en) | 2020-11-27 | 2020-11-27 | Connecting rod connector of screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112392413A CN112392413A (en) | 2021-02-23 |
| CN112392413B true CN112392413B (en) | 2022-07-12 |
Family
ID=74604629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011359131.0A Active CN112392413B (en) | 2020-11-27 | 2020-11-27 | Connecting rod connector of screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112392413B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10047572B2 (en) * | 2013-03-01 | 2018-08-14 | Sandvik Intellectual Property Ab | Overshot tool having latch control means |
| CN206016705U (en) * | 2016-08-15 | 2017-03-15 | 邹城兖矿泰德工贸有限公司 | Driver extension bar union joint |
| CN208153917U (en) * | 2018-03-12 | 2018-11-27 | 云南氟业环保科技股份有限公司 | The pipeline damping head that is flexible coupling |
| CN208763611U (en) * | 2018-05-30 | 2019-04-19 | 盘锦恒隆石油机械制造有限公司 | A kind of highly-safe release device |
-
2020
- 2020-11-27 CN CN202011359131.0A patent/CN112392413B/en active Active
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| Publication number | Publication date |
|---|---|
| CN112392413A (en) | 2021-02-23 |
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Address after: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee after: Shandong Yanneng Taide Heavy Industry Co.,Ltd. Address before: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee before: ZOUCHENG YANKUANG TAIDE INDUSTRY & TRADE Co.,Ltd. |