CN111396410B - Connecting mechanism convenient to dismantle - Google Patents
Connecting mechanism convenient to dismantle Download PDFInfo
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- CN111396410B CN111396410B CN202010341876.8A CN202010341876A CN111396410B CN 111396410 B CN111396410 B CN 111396410B CN 202010341876 A CN202010341876 A CN 202010341876A CN 111396410 B CN111396410 B CN 111396410B
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- locking
- connecting plate
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- sleeve
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- 230000005540 biological transmission Effects 0.000 claims abstract description 73
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
- F16B1/04—Means for securing elements of mechanisms after operation disengaged by movement of the actuating member of the element
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gear Transmission (AREA)
Abstract
The invention relates to a connecting mechanism convenient to disassemble, which comprises an upper connecting plate, a lower connecting plate and a locking block, wherein the upper connecting plate is used for positioning the locking block; the locking hook is used for being matched with the locking block for locking connection; and a locking device for locking and unlocking the locking hook and the locking block. In the invention, because the transmission of the worm and the turbine has a locking function, the locking positions of the first locking part, the second locking part and the third locking part can be kept stable and cannot be unlocked when external force is received, the transmission of the worm and the turbine is labor-saving, additional fastening force cannot be applied when the locking positions are locked, the stable locking of the locking hook can be realized, and meanwhile, the locking effect in a longer time can be ensured under the pretightening force provided by the volute spring; when the handle is disassembled, the knob is only required to be reversely screwed to unlock easily, an additional tool is not required, and the knob is screwed to save labor.
Description
Technical Field
The invention relates to the technical field of connecting parts, in particular to a connecting mechanism convenient to disassemble.
Background
Current connection structure that hangs uses connecting bolt and nut to carry out fixed connection or directly uses the couple to dismantle the connection usually, but all need use corresponding instrument when connecting bolt and nut structrual installation and dismantling, and the dismantlement process is comparatively complicated, as for the couple connection, though dismantle comparatively convenient, but the steadiness is relatively poor, the stable connection of being not convenient for.
Disclosure of Invention
The invention aims to solve the problems and provides a connecting mechanism which is stable in connection and convenient to detach, and the specific technical scheme is as follows:
a connecting mechanism convenient to disassemble is characterized by comprising an upper connecting plate and an upper connecting plate, wherein the upper connecting plate is used for positioning a locking block; the locking hook is used for being matched with the locking block for locking connection; and a locking device for locking and unlocking the locking hook and the locking block.
Furthermore, a connecting plate is arranged on the upper connecting plate, a connecting hole is formed in the connecting plate, the locking block is fixedly connected with the pin shaft, and the pin shaft is arranged in the connecting hole.
Furthermore, the locking device comprises a transmission shaft, a worm wheel, a rotating shaft, a lower connecting plate, a sleeve, a telescopic shaft, a transmission shaft and a transmission disc, wherein the lower connecting plate is arranged below the upper connecting plate, the rotating shaft is arranged in the middle of the lower connecting plate, the sleeve is rotatably arranged on the rotating shaft, the telescopic shaft is slidably arranged in the sleeve, the outer end of the telescopic shaft, which is positioned on the sleeve, is fixedly connected with the locking hook, the transmission shaft is arranged at the inner end of the telescopic shaft, which is positioned on the sleeve, one end of the sleeve, which is close to the locking hook, is provided with a second locking part matched with the first locking part on the locking block, the end part of the locking hook is provided with a third locking part matched with the first locking part, the transmission disc and the worm wheel are fixedly arranged on the rotating shaft, the transmission disc is provided with a sliding groove, and the shape of the sliding groove is a section of a spiral line taking the rotating shaft as the center of the circle, and the distance between the lowest end of the sliding groove and the rotating shaft is smaller than the distance between the highest end of the sliding groove and the rotating shaft, the transmission shaft is arranged in the sliding groove in a sliding mode, a worm meshed with the worm wheel is arranged below the worm wheel, and the worm is fixedly arranged on the transmission shaft.
Further, a knob is arranged at the end part of the transmission shaft.
Furthermore, the lower connecting plate is fixedly arranged on the box body.
Further, the connecting plate is L-shaped.
Further, a spiral spring is arranged on the transmission shaft and used for enabling the transmission shaft to rotate towards the counterclockwise direction all the time.
The invention also discloses a using method of the connecting mechanism convenient to disassemble, when in installation, the locking hook is hung on the locking block, the third locking part is matched with the first locking part to realize the initial locking of the position of the locking hook, the knob is screwed anticlockwise, the knob drives the worm to rotate anticlockwise through the transmission shaft, the worm is meshed with the worm wheel and drives the worm wheel to rotate clockwise around the rotating shaft, the worm wheel drives the transmission disc to rotate clockwise through the rotating shaft, the transmission disc drives the locking hook and the telescopic shaft to contract relative to the sleeve through the transmission shaft and the sliding groove, and further the second locking part on the sleeve is close to the first locking part on the locking block, and when the transmission shaft moves to the lowest end of the sliding groove, the further locking of the position of the locking hook is realized.
Further, during the dismantlement, twist clockwise the knob, the knob passes through the transmission shaft and drives the worm clockwise rotation, worm and worm wheel meshing and drive the worm wheel and revolve the axis of rotation anticlockwise rotation, the worm wheel drives the driving disc anticlockwise rotation through the axis of rotation, the driving disc passes through transmission shaft and sliding tray and drives locking hook and telescopic shaft and stretch out for the sleeve, and then the second sticking department on the sleeve keeps away from each other with the first locking portion on the locking piece to realize the unblock of locking hook position when the transmission shaft moves the top of sliding tray, upwards promote the locking hook and detach from the locking piece, the third sticking department breaks away from with the cooperation of first locking portion simultaneously, thereby realized the convenient dismantlement of locking hook.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the transmission of the worm and the worm wheel has a locking function, so that the locking positions of the first locking part, the second locking part and the third locking part can be kept stable and cannot be unlocked when external force is received, the transmission of the worm and the worm wheel is labor-saving, additional fastening force cannot be applied when the locking positions are locked, the stable locking of the locking hook can be realized, and meanwhile, the locking effect in a long time can be ensured under the pretightening force provided by the worm spring; when the handle is disassembled, the knob is only required to be reversely screwed to unlock easily, an additional tool is not required, and the knob is screwed to save labor.
Drawings
Fig. 1 is a first schematic structural diagram (initial position) of the present invention.
Fig. 2 is a second structural diagram (locking process) of the present invention.
Fig. 3 is a third (locked position) schematic of the present invention.
FIG. 4 is a fourth schematic diagram of the structure of the present invention (separation process).
Fig. 5 is a schematic structural diagram five (unlocked position) of the present invention.
Fig. 6 is a sixth schematic view of the present invention (volute spring release process).
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, a coupling mechanism easy to disassemble includes an upper coupling plate 1, an upper coupling plate 1 for positioning a locking block 9; the locking hook 2 is used for being matched with the locking block 9 for locking connection; and a locking device for locking and unlocking the locking hook 2 and the locking block 9.
The upper connecting plate 1 is provided with a connecting plate 8, the connecting plate 8 is provided with a connecting hole, the locking block 9 is fixedly connected with a pin shaft, and the pin shaft is arranged in the connecting hole.
The locking device comprises a transmission shaft 13, a worm 7, a worm wheel 12, a rotating shaft 6, a lower connecting plate 11, a sleeve 10, a telescopic shaft 3, a transmission shaft 4 and a transmission disc 5, wherein the lower connecting plate 11 is arranged below the upper connecting plate 1, the rotating shaft 6 is arranged in the middle of the lower connecting plate 11, the sleeve 10 is rotatably arranged on the rotating shaft 6, the telescopic shaft 3 is slidably arranged in the sleeve 10, the outer end of the telescopic shaft 3, which is positioned on the sleeve 10, is fixedly connected with a locking hook 2, the inner end of the telescopic shaft 3, which is positioned on the sleeve 10, is provided with the transmission shaft 4, one end of the sleeve 10, which is close to the locking hook 2, is provided with a second locking part matched with a first locking part on a locking block 9, the end part of the locking hook 2 is provided with a third locking part matched with the first locking part, the transmission disc 5 and the worm wheel 12 are fixedly arranged on the rotating shaft 6, and the transmission disc 5 is provided with a sliding groove, the shape of sliding tray is one section with axis of rotation 6 as the helix of centre of a circle, just the distance of sliding tray lower extreme and axis of rotation 6 is less than the distance of sliding tray top and axis of rotation 6, 4 slip settings of transmission shaft are in the sliding tray, worm wheel 12 below is provided with rather than the worm 7 of meshing, worm 7 is fixed to be set up on transmission shaft 13.
The end of the transmission shaft 13 is provided with a knob.
The lower connecting plate 11 can be fixedly arranged on the box body; the box body can be used for installing instruments, hanging pieces and the like. The knob is arranged outside the box body.
The connecting plate 8 can be L-shaped, and when the lower connecting plate 11 is fixed on a vertical wall body, one end of the L-shaped connecting plate 8, which is provided with the locking block 9, can be kept in a vertical state.
The locking block upper end is provided with the U-shaped mouth, round pin axle passes in proper order the one end of U-shaped mouth, connecting hole and the other end of U-shaped mouth.
The locking block 9 is fixedly arranged on the L-shaped connecting plate 8.
The transmission shaft 13 is provided with a spiral spring, and the spiral spring is used for enabling the transmission shaft 13 to rotate towards the counterclockwise direction all the time so as to provide proper pre-tightening force when the locking hook 2 is locked.
As shown in fig. 1-6, the method of installing and removing the easy-to-detach attachment mechanism is as follows: during installation, the locking hook 2 is hung on the locking block 9, the third locking part is matched with the first locking part to realize initial locking of the position of the locking hook 2, the knob is screwed anticlockwise, the knob drives the worm 7 to rotate anticlockwise through the transmission shaft 13, the worm 7 is meshed with the worm wheel 12 and drives the worm wheel 12 to rotate clockwise around the rotating shaft 6, the worm wheel 12 drives the transmission disc 5 to rotate clockwise through the rotating shaft 6, the transmission disc 5 drives the locking hook 2 and the telescopic shaft 3 to contract relative to the sleeve 10 through the transmission shaft 4 and the sliding groove, further, the second locking part on the sleeve 10 is close to the first locking part on the locking block 9, further locking of the position of the locking hook 2 is realized when the transmission shaft 4 moves to the lowest end of the sliding groove, and the transmission of the worm 7 and the worm wheel 12 has a locking function, so that the locking positions of the first locking part, the second locking part and the third locking part can be kept stable when external force is received, and can't be by the unblock, and the transmission of worm 7 and worm wheel 12 is comparatively laborsaving, can't exert extra fastening force when the latched position, can realize the stable locking of locking hook 2, simultaneously, can also pack the locking effect in longer time under the pretightning force that the spiral spring provided.
During the dismantlement, clockwise twist the knob, the knob drives worm 7 through transmission shaft 13 and rotates clockwise, worm 7 meshes with worm wheel 12 and drives worm wheel 12 and revolve rotation axis 6 anticlockwise rotation, worm wheel 12 drives driving disc 5 anticlockwise rotation through rotation axis 6, driving disc 5 drives locking hook 2 and telescopic shaft 3 through transmission shaft 4 and sliding tray and stretches out for sleeve 10, and then second sticking department on the sleeve 10 keeps away from each other with the first locking portion on the locking piece 9, and realize the unblock of locking hook 2 position when transmission shaft 4 moves the top of sliding tray, upwards promote locking hook 2 and detach from locking piece 9, third sticking department breaks away from with the cooperation of first locking portion simultaneously, thereby realized the convenient dismantlement of locking hook 2. When the handle is disassembled, the knob is only required to be reversely screwed to unlock easily, an additional tool is not required, and the knob is screwed to save labor.
Example 2
As shown in fig. 1, a coupling mechanism easy to disassemble includes an upper coupling plate 1, an upper coupling plate 1 for positioning a locking block 9; the locking hook 2 is used for being matched with the locking block 9 for locking connection; and a locking device for locking and unlocking the locking hook 2 and the locking block 9.
The upper connecting plate 1 is provided with a connecting plate 8, the connecting plate 8 is provided with a connecting hole, the locking block 9 is fixedly connected with a pin shaft, and the pin shaft is arranged in the connecting hole.
The locking device comprises a transmission shaft 13, a worm 7, a worm wheel 12, a rotating shaft 6, a lower connecting plate 11, a sleeve 10, a telescopic shaft 3, a transmission shaft 4 and a transmission disc 5, wherein the lower connecting plate 11 is arranged below the upper connecting plate 1, the rotating shaft 6 is arranged in the middle of the lower connecting plate 11, the sleeve 10 is rotatably arranged on the rotating shaft 6, the telescopic shaft 3 is slidably arranged in the sleeve 10, the outer end of the telescopic shaft 3, which is positioned on the sleeve 10, is fixedly connected with a locking hook 2, the inner end of the telescopic shaft 3, which is positioned on the sleeve 10, is provided with the transmission shaft 4, one end of the sleeve 10, which is close to the locking hook 2, is provided with a second locking part matched with a first locking part on a locking block 9, the end part of the locking hook 2 is provided with a third locking part matched with the first locking part, the transmission disc 5 and the worm wheel 12 are fixedly arranged on the rotating shaft 6, and the transmission disc 5 is provided with a sliding groove, the shape of sliding tray is one section with axis of rotation 6 as the helix of centre of a circle, just the distance of sliding tray lower extreme and axis of rotation 6 is less than the distance of sliding tray top and axis of rotation 6, 4 slip settings of transmission shaft are in the sliding tray, worm wheel 12 below is provided with rather than the worm 7 of meshing, worm 7 is fixed to be set up on transmission shaft 13.
The end of the transmission shaft 13 is provided with a driving motor.
The lower connecting plate 11 can be fixedly arranged on the box body; the box body can be used for installing instruments, hanging pieces and the like.
The connecting plate 8 can be L-shaped, and when the lower connecting plate 11 is fixed on a vertical wall body, one end of the L-shaped connecting plate 8, which is provided with the locking block 9, can be kept in a vertical state.
The locking block upper end is provided with the U-shaped mouth, round pin axle passes in proper order the one end of U-shaped mouth, connecting hole and the other end of U-shaped mouth.
The locking block 9 is arranged on the L-shaped connecting plate 8 through a torsion spring and a ratchet wheel structure, so that the hanging angle of the lower connecting plate 11 can be adjusted conveniently.
As shown in fig. 1-6, the method of installing and removing the easy-to-detach attachment mechanism is as follows: during installation, the locking hook 2 is hung on the locking block 9, the third locking part is matched with the first locking part to realize initial locking of the position of the locking hook 2, the driving motor is started, the driving motor drives the worm 7 to rotate anticlockwise through the transmission shaft 13, the worm 7 is meshed with the worm wheel 12 and drives the worm wheel 12 to rotate clockwise around the rotating shaft 6, the worm wheel 12 drives the transmission disc 5 to rotate clockwise through the rotating shaft 6, the transmission disc 5 drives the locking hook 2 and the telescopic shaft 3 to contract relative to the sleeve 10 through the transmission shaft 4 and the sliding groove, further, the second locking part on the sleeve 10 is close to the first locking part on the locking block 9, further locking of the position of the locking hook 2 is realized when the transmission shaft 4 moves to the lowest end of the sliding groove, the driving motor stops working and brakes to position the position of the transmission shaft 13, and the transmission of the worm 7 and the worm wheel 12 has a locking function, therefore, the locking positions of the first, second, and third locking portions can be kept stable when receiving an external force, and cannot be unlocked, and further, the locking of the locking hook 2 is more stable by the braking of the driving motor.
During the dismantlement, driving motor removes the braking and reverse rotation, driving motor passes through transmission shaft 13 and drives worm 7 clockwise rotation, worm 7 meshes with worm wheel 12 and drives worm wheel 12 and revolve rotation axis 6 anticlockwise rotation, worm wheel 12 drives driving disc 5 anticlockwise rotation through rotation axis 6, driving disc 5 drives locking hook 2 and telescopic shaft 3 through transmission shaft 4 and sliding tray and stretches out for sleeve 10, and then second sticking department on the sleeve 10 keeps away from each other with the first locking portion on the locking piece 9 to realize the unblock of locking hook 2 position when transmission shaft 4 moves the top of sliding tray, upwards promote locking hook 2 and detach from locking piece 9, the cooperation of third sticking department and first locking portion breaks away from simultaneously, thereby realized the convenient dismantlement of locking hook 2.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the embodiments described above are not described, but should be considered as within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A coupling mechanism convenient to disassemble, comprising:
the upper connecting plate is used for positioning the upper connecting plate of the locking block;
the locking hook is used for being matched with the locking block for locking connection;
a locking device for locking and unlocking the locking hook and the locking block;
the locking device comprises a second transmission shaft, a worm wheel, a rotating shaft, a lower connecting plate, a sleeve, a telescopic shaft, a first transmission shaft and a transmission disc, wherein the lower connecting plate is arranged below the upper connecting plate, the rotating shaft is arranged in the middle of the lower connecting plate, the sleeve is rotatably arranged on the rotating shaft, the telescopic shaft is slidably arranged in the sleeve, the outer end of the telescopic shaft, which is positioned on the sleeve, is fixedly connected with a locking hook, the first transmission shaft is arranged at the inner end of the telescopic shaft, which is positioned on the sleeve, one end, which is close to the locking hook, of the sleeve is provided with a second locking part matched with the first locking part on the locking block, the end part of the locking hook is provided with a third locking part matched with the first locking part, the transmission disc and the worm wheel are fixedly arranged on the rotating shaft, the transmission disc is provided with a sliding groove, and the shape of the sliding groove is a section of a spiral line taking the rotating shaft as the center of a circle, and the distance between the lowest end of the sliding groove and the rotating shaft is smaller than the distance between the highest end of the sliding groove and the rotating shaft, the first transmission shaft is arranged in the sliding groove in a sliding mode, a worm meshed with the first transmission shaft is arranged below the worm wheel, and the worm is fixedly arranged on the second transmission shaft.
2. The easy-to-disassemble connecting mechanism as claimed in claim 1, wherein the upper connecting plate is provided with a connecting plate, the connecting plate is provided with a connecting hole, the locking block is fixedly connected with a pin shaft, and the pin shaft is arranged in the connecting hole.
3. The easy-to-detach connecting mechanism according to claim 2, wherein the end of the second transmission shaft is provided with a knob.
4. The easy-to-detach connecting mechanism according to claim 2, wherein the lower connecting plate is fixedly arranged on the box body.
5. A readily releasable attachment mechanism according to claim 2, wherein said web is L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341876.8A CN111396410B (en) | 2020-04-27 | 2020-04-27 | Connecting mechanism convenient to dismantle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010341876.8A CN111396410B (en) | 2020-04-27 | 2020-04-27 | Connecting mechanism convenient to dismantle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111396410A CN111396410A (en) | 2020-07-10 |
| CN111396410B true CN111396410B (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010341876.8A Active CN111396410B (en) | 2020-04-27 | 2020-04-27 | Connecting mechanism convenient to dismantle |
Country Status (1)
| Country | Link |
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| CN (1) | CN111396410B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB918547A (en) * | 1960-11-10 | 1963-02-13 | Teleflex Prod Ltd | Improvements in and relating to torsion actuators or controls |
| KR200207447Y1 (en) * | 2000-06-14 | 2000-12-15 | 김동기 | Two-way road binder attached ratchet gear |
| CN201212501Y (en) * | 2008-05-19 | 2009-03-25 | 席建忠 | Padlock of novel structure |
| CN102101073A (en) * | 2009-12-16 | 2011-06-22 | 埃佩多夫股份公司 | Door lock fastener |
| CA2752966A1 (en) * | 2010-09-28 | 2012-03-28 | Liebherr-Aerospace Lindenberg Gmbh | Locking system and switching apparatus for a locking system |
| CN202431657U (en) * | 2011-12-31 | 2012-09-12 | 深圳市通普科技有限公司 | Locking device |
| CN102829039A (en) * | 2012-09-06 | 2012-12-19 | 上海大晨显示技术有限公司 | Locking connecting device, LED (Light Emitting Diode) screen box and LED display screen |
| CN207728678U (en) * | 2017-09-23 | 2018-08-14 | 罗雁翔 | A kind of locking device for telescopic rod |
-
2020
- 2020-04-27 CN CN202010341876.8A patent/CN111396410B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB918547A (en) * | 1960-11-10 | 1963-02-13 | Teleflex Prod Ltd | Improvements in and relating to torsion actuators or controls |
| KR200207447Y1 (en) * | 2000-06-14 | 2000-12-15 | 김동기 | Two-way road binder attached ratchet gear |
| CN201212501Y (en) * | 2008-05-19 | 2009-03-25 | 席建忠 | Padlock of novel structure |
| CN102101073A (en) * | 2009-12-16 | 2011-06-22 | 埃佩多夫股份公司 | Door lock fastener |
| CA2752966A1 (en) * | 2010-09-28 | 2012-03-28 | Liebherr-Aerospace Lindenberg Gmbh | Locking system and switching apparatus for a locking system |
| CN202431657U (en) * | 2011-12-31 | 2012-09-12 | 深圳市通普科技有限公司 | Locking device |
| CN102829039A (en) * | 2012-09-06 | 2012-12-19 | 上海大晨显示技术有限公司 | Locking connecting device, LED (Light Emitting Diode) screen box and LED display screen |
| CN207728678U (en) * | 2017-09-23 | 2018-08-14 | 罗雁翔 | A kind of locking device for telescopic rod |
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| Publication number | Publication date |
|---|---|
| CN111396410A (en) | 2020-07-10 |
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Effective date of registration: 20211015 Address after: 230000 room 609, building 3, binheyuan, south of central market, Dianbu Town, Feidong County, Hefei City, Anhui Province Applicant after: Hefei Hangzheng Industrial Design Co.,Ltd. Address before: 450000 No. 24, building 4, yard 1, beifuhua street, Erqi District, Zhengzhou City, Henan Province Applicant before: Zhu Xiaodi |
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