CN114050062B - Manipulator for shutter - Google Patents
Manipulator for shutter Download PDFInfo
- Publication number
- CN114050062B CN114050062B CN202111294255.XA CN202111294255A CN114050062B CN 114050062 B CN114050062 B CN 114050062B CN 202111294255 A CN202111294255 A CN 202111294255A CN 114050062 B CN114050062 B CN 114050062B
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- micro
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- 238000012544 monitoring process Methods 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 230000009191 jumping Effects 0.000 claims description 11
- 230000004044 response Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
The application discloses an operator for a shutter, which relates to a shutter and aims at solving the problem that only three state points can be displayed without monitoring a switching process, and the key points of the technical scheme are as follows: the manipulator for the shutter comprises an assembly main board, wherein the assembly main board is provided with a Margaret intermittent mechanism, the Margaret intermittent mechanism comprises an input shaft and an output shaft, the input shaft is provided with an input state monitoring group, and the output shaft is provided with an output state monitoring group; the input state monitoring group comprises a cam and at least four micro-pore switches, wherein the cam is provided with a short-diameter circular arc section, a long-diameter circular arc section, a first end surface upright post and a second end surface upright post; the output state monitoring group comprises an incomplete gear I and a micro-control switch seven, wherein the incomplete gear I is provided with a smooth arc section and a gear section. According to the manipulator for the shutter, the user can be effectively informed of the state of the manipulator, timely and rapid response can be conveniently made, and further the power supply and transmission safety is improved.
Description
Technical Field
The present application relates to a shutter, and more particularly, it relates to an operator for a shutter.
Background
The shutter manipulator is used when switching the three positions of the shutter, i.e., the "off", "on" and "grounded".
The technical points of the three-position shutter manipulator disclosed in Chinese patent publication No. CN103035425A are as follows: the three-position switch having different operation angles between the "on" - "off" of the circuit breaker and the "off" - "ground" of the setting device can be operated by one operator. In the cross wheel mechanism, after the operation, the arc convex parts provided on the drive gear are engaged with each other to hold the "on", "off" and "ground" positions of the output shaft, and the arc concave parts provided on the mahalanobis intermittent mechanism are arranged so that the respective angles from "off" to "on" and from "off" to "ground" are the same as the operation angle of the output shaft in order to idle the inertial movement of the drive gear. The angle of the roller engagement groove provided in the mahalanobis intermittent mechanism is 1/2 of the operating angle from the arc concave portion of the "off" to the "on" and the "ground" so as to engage with the roller provided in the drive gear and transmit the rotational force to the output shaft. The rollers are disposed at positions of the revolution radius so that the rollers provided on the drive gear engage with the roller engagement grooves, and are disposed at positions of the revolution radius so that the rollers engage with the roller engagement grooves.
The switch operator generally adopts a micro switch to contact the cam and displays the states of 'off', 'on' and 'grounding' through programming, but in the prior art, only three state points can be displayed generally, and the switch operator does not have monitoring of a switching process; there is therefore a need to propose a new solution to this problem.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application aims to provide a shutter manipulator which effectively improves the knowledge of a user on the state of the manipulator so as to facilitate timely and rapid response and further improve the power supply and transmission safety.
The technical aim of the application is realized by the following technical scheme: an operator for a shutter comprises an assembly main board, wherein the assembly main board is provided with a mahalanobis intermittent mechanism, the mahalanobis intermittent mechanism comprises an input shaft and an output shaft, the input shaft is provided with an input state monitoring group, and the output shaft is provided with an output state monitoring group; the input state monitoring group comprises a cam coaxially fixed on an input shaft and at least four micro-pore switches, namely a micro-control switch I, a micro-control switch II, a micro-control switch III and a micro-control switch IV in sequence, wherein the cam is provided with a short-diameter circular arc section, a long-diameter circular arc section, a first end surface upright post and a second end surface upright post, the micro-control switch I and the micro-control switch II are in butt fit with the short-diameter circular arc section and the long-diameter circular arc section, and the micro-control switch III and the micro-control switch IV are in butt fit with the first end surface upright post and the second end surface upright post; the output state monitoring group comprises an incomplete gear I coaxially fixed on the output shaft and at least one micro-control switch seven, wherein the incomplete gear I is provided with a smooth arc section and a gear section, and the micro-control switch seven is in butt fit with the gear section.
By adopting the technical scheme, the input state monitoring group monitors the input state and the corresponding state by utilizing the cooperation between the four micro-control switches and the cam, wherein the specific monitoring mode is to monitor and know three state points of 'off', 'on', 'grounded' through the first micro-control switch and the second micro-control switch, and monitor and know whether the response from 'off' to 'on' or from 'off' to 'grounded' is started or not through the third micro-control switch and the fourth micro-control switch; the output state monitoring group monitors and knows whether the torque output is continuously performed or not by utilizing the cooperation between the micro-control switch seven and the incomplete gear one, namely, the process monitoring from 'off' to 'on' or 'off' to 'grounding' is realized, and the specific principle is that when the micro-control switch seven is contacted with the gear section, the micro-control switch seven presents a switch continuous jumping state along with the continuous rotation of the incomplete gear one, and then the PLC program is connected to realize the monitoring of the switching process; in summary, the application can simultaneously monitor the three status points of "off", "on" and "grounded", monitor the control input response and monitor the switching process, effectively improve the knowledge of the user on the status of the operator, so as to facilitate timely and rapid response and further improve the power supply and transmission safety.
The application is further provided with: the input state monitoring group further comprises a micro-control switch five and a micro-control switch six, wherein the micro-control switch I, the micro-control switch II, the micro-control switch five and the micro-control switch six are in square four-point layout with an input shaft as a center, and the short-diameter circular arc section and the long-diameter circular arc section halve the cam.
The application is further provided with: and the micro-control switch III and the micro-control switch IV are respectively overlapped on the micro-control switch V and the micro-control switch VI.
The application is further provided with: the first micro-control switch is off, the second micro-control switch is off, the third micro-control switch is on, the fourth micro-control switch is on, the fifth micro-control switch is on, and the sixth micro-control switch is in an input disconnection state when being on; the first micro-control switch is turned on, the second micro-control switch is turned off, the third micro-control switch is turned off, the fourth micro-control switch is turned off, the fifth micro-control switch is turned on, and the sixth micro-control switch is turned on when being turned off; the first micro-control switch is turned off, the second micro-control switch is turned on, the third micro-control switch is turned on, the fourth micro-control switch is turned on, the fifth micro-control switch is turned off, and the sixth micro-control switch is turned on and is in an input grounding state.
The application is further provided with: the output state monitoring group further comprises a second incomplete gear which is consistent with the first incomplete gear in projection and a micro-control switch eight which is matched with the second incomplete gear.
The application is further provided with: the output state monitoring group further comprises a micro-control switch nine and a micro-control switch ten, and the incomplete gear I and the incomplete gear II are symmetrically provided with lugs.
The application is further provided with: the micro-control switch nine is closed, and the micro-control switch ten is opened and is in an output disconnection state; the micro-control switch nine is on, and the micro-control switch ten is off and is in an output on state; and the micro-control switch nine is closed, and the micro-control switch ten is in an output grounding state when the micro-control switch is closed.
The application is further provided with: the micro-control switch seven is in a switch jumping state, and the micro-control switch eight is in a process state from off to on when in the switch jumping state; the micro-control switch seven is in a switch jumping state, and the micro-control switch eight is in a process state of being disconnected to ground when being closed.
In summary, the application has the following beneficial effects: the application can simultaneously monitor three status points of 'off', 'on', 'grounded', control input response and switching process, thereby effectively improving the knowledge of the user on the status of the operator, facilitating the timely and rapid response and further improving the safety of power supply and transmission; double monitoring is realized, and the monitoring reliability is effectively improved, namely, when a single micro-control switch is damaged, the input state can still be accurately monitored; the second switching process monitoring is added, so that the reliability of the switching process monitoring is effectively improved; the output state monitoring group is endowed with three output state points of "off", "on" and "ground".
Drawings
FIG. 1 is a schematic diagram of the overall structure of the application, mainly showing one side of a March intermittent mechanism;
FIG. 2 is a schematic diagram of the overall structure of the present application, mainly illustrating one side of the input state monitoring group and one side of the output state monitoring group;
fig. 3 is a front view of the input state monitoring group and the output state monitoring group according to the present application.
Description of the drawings: 1. assembling a main board; 21. an input shaft; 22. an output shaft; 23. a cam; 23-1, a micro-control switch I; 23-2, a micro-control switch II; 23-3, a micro-control switch III; 23-4, a micro-control switch IV; 23-5, a micro-control switch; 23-6, a micro-control switch is six; 24. a short diameter circular arc segment; 25. a long diameter circular arc segment; 26. a first end face stud; 27. a second end face upright; 28. incomplete gear one; 28-1, a micro-control switch seven; 28-2, a micro-control switch eight; 28-3, a micro-control switch nine; 28-4, a micro-control switch ten; 29. a smooth arc section; 30. a gear segment; 31. incomplete gear II; 32. lugs.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
The utility model provides a shutter is with manipulator, as shown in fig. 1, including assembly mainboard 1, assembly mainboard 1 is provided with mahalanobis intermittent mechanism, mahalanobis intermittent mechanism includes input shaft 21 and output shaft 22, input shaft 21 is provided with input state monitoring group, output shaft 22 is provided with output state monitoring group, the motor or manual pole is connected with input shaft 21 as the power supply, output shaft 22 is connected in the torsion input of shutter, thereby realize the torsion input to the shutter under the transmission of mahalanobis intermittent mechanism, and then control the on-state of delivery electricity, input state monitoring group and output state monitoring group electricity signal connection are in the PLC procedure, the PLC procedure can be connected with the computer, directly look over the monitoring state in the display interface of computer.
As shown in fig. 2 and 3, the input state monitoring set includes a cam 23 coaxially fixed to the input shaft 21, and at least four micro-pore switches, namely a micro-control switch one 23-1, a micro-control switch two 23-2, a micro-control switch three 23-3 and a micro-control switch four 23-4, wherein the cam 23 is provided with a short diameter arc section 24, a long diameter arc section 25, a first end surface column 26 and a second end surface column 27, the micro-control switch one 23-1 and the micro-control switch two 23-2 are in butt fit with the short diameter arc section 24 and the long diameter arc section 25, and the micro-control switch three 23-3 and the micro-control switch four 23-4 are in butt fit with the first end surface column 26 and the second end surface column 27; when the power source drives the output shaft 21 and the cam 23 to rotate by the input torque, the positions of the short diameter circular arc section 24, the long diameter circular arc section 25, the first end surface upright post 26 and the second end surface upright post 27 of the cam 23 relative to the four micro-control switches are changed, so that the on-off states of the four micro-control switches are controlled through the pushing force, the input condition of the operator is monitored according to the on-off states of the four micro-control switches, the specific monitoring mode is that three state points of 'off', 'on' and 'grounded' are monitored through the switches of the micro-control switch I23-1 and the micro-control switch II 23-2, and whether the response is started or not is monitored through the switches of the micro-control switch III 23-3 and the micro-control switch IV 23-4.
As shown in fig. 2 and 3, the output state monitoring set includes an incomplete gear one 28 coaxially fixed to the output shaft 22, and at least one micro-control switch seven 28-1, wherein the incomplete gear one 28 is provided with a smooth arc section 29 and a gear section 30, and the micro-control switch seven 28-1 is in abutting fit with the gear section 30; the output state monitoring group monitors and learns whether the torque output is continuously performed or not by utilizing the cooperation between the micro-control switch seven 28-1 and the incomplete gear one 28, namely, the process monitoring from 'off' to 'on' or 'off' to 'grounding', and the specific principle is that when the micro-control switch seven 28-1 is contacted with the gear segment 30, the micro-control switch seven 28-1 presents a switch continuous jumping state along with the continuous rotation of the incomplete gear one 28, and then the PLC program is connected to realize the monitoring and learning of the switching process.
In order to improve the monitoring reliability of the three states of "off", "on" and "grounded", as shown in fig. 2, the input state monitoring group further includes five micro-control switches 23-5 and six micro-control switches 23-6, wherein the first micro-control switch 23-1, the second micro-control switch 23-2, the fifth micro-control switch 23-5 and the sixth micro-control switch 23-6 are in square four-point layout with the input shaft 21 as the center, and the short diameter arc section 24 and the long diameter arc section 25 bisect the cam 23, so that the three states of "off", "on" and "grounded" are monitored through the cooperation of the four micro-control switches, and the reliability is effectively improved.
In order to improve layout compactness, as shown in fig. 2, a third micro-control switch 23-3 and a fourth micro-control switch 23-4 are respectively stacked on a fifth micro-control switch 23-5 and a sixth micro-control switch 23-6, so that six micro-control switches are installed in a narrow space.
The input states corresponding to the six micro-control switch states of the input state monitoring group are as follows, wherein the micro-control switch I23-1 is closed, the micro-control switch II 23-2 is closed, the micro-control switch III 23-3 is open, the micro-control switch IV 23-4 is open, the micro-control switch V23-5 is open, and the micro-control switch VI 23-6 is open; the micro-control switch I23-1 is on, the micro-control switch II 23-2 is off, the micro-control switch III 23-3 is off, the micro-control switch IV 23-4 is off, the micro-control switch V23-5 is on, and the micro-control switch VI 23-6 is in an input on state when being off; the micro-control switch one 23-1 is off, the micro-control switch two 23-2 is on, the micro-control switch three 23-3 is off, the micro-control switch four 23-4 is off, the micro-control switch five 23-5 is off, and the micro-control switch six 23-6 is on and is in an input grounding state.
The comparison of the table shows that the micro-control switch I23-1 and the micro-control switch II are matched with the cam 23, the micro-control switch V and the micro-control switch VI are matched with the cam 23, and the monitoring of three input states of 'off', 'on' and 'grounding' can be independently realized, so that dual monitoring is realized, the monitoring reliability is effectively improved, and the input state can still be accurately monitored when a single micro-control switch is damaged.
In order to improve the reliability of the output state monitoring, as shown in fig. 2, the output state monitoring group further includes a second incomplete gear 31 projected to be consistent with the first incomplete gear 28, and a micro-control switch eight 28-2 matched with the second incomplete gear 31, so as to increase the second switching process monitoring, and effectively improve the reliability of the switching process monitoring.
In order to improve the function of the output state monitoring set, as shown in fig. 2 and 3, the output state monitoring set further includes a micro-control switch nine 28-3 and a micro-control switch ten 28-4, wherein the first incomplete gear 28 and the second incomplete gear 31 are symmetrically formed with lugs 32, so that when the micro-control switch seven 28-1, the micro-control switch eight 28-2, the micro-control switch nine 28-3 and the micro-control switch ten 28-4 are in contact with the lugs 32, the four are in a long-open state, and three output state points of "off", "on" and "grounding" are further provided for the output state monitoring set.
The output state corresponding to the micro-control switch state of the output state monitoring group is as follows, wherein the micro-control switch nine 28-3 is off, and the micro-control switch ten 28-4 is on and is in an output off state; the micro-control switch nine 28-3 is on, and the micro-control switch ten 28-4 is off and is in an output on state; the micro-control switch nine 28-3 is closed, and the micro-control switch ten 28-4 is in an output grounding state when being closed; the micro-control switch seven 28-1 is in a switch jumping state, and the micro-control switch eight 28-2 is in a switch-off to switch-on process state when in the switch jumping state; the micro-control switch seven 28-1 is in a switch jumping state, and the micro-control switch eight 28-2 is in a process state of being disconnected to the ground when being closed.
The present application is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present application.
Claims (8)
1. The utility model provides an operator for shutter, includes assembly mainboard (1), assembly mainboard (1) are provided with mahalanobis intermittent mechanism, mahalanobis intermittent mechanism includes input shaft (21) and output shaft (22), its characterized in that: the input shaft (21) is provided with an input state monitoring group, and the output shaft (22) is provided with an output state monitoring group;
the input state monitoring group comprises a cam (23) coaxially fixed on an input shaft (21) and at least four micro-pore switches, wherein the cam (23) comprises a micro-control switch I (23-1), a micro-control switch II (23-2), a micro-control switch III (23-3) and a micro-control switch IV (23-4) in sequence, the cam (23) is provided with a short-diameter circular arc section (24), a long-diameter circular arc section (25), a first end surface upright post (26) and a second end surface upright post (27), the micro-control switch I (23-1) and the micro-control switch II (23-2) are in butt fit with the short-diameter circular arc section (24) and the long-diameter circular arc section (25), and the micro-control switch III (23-3) and the micro-control switch IV (23-4) are in butt fit with the first end surface upright post (26) and the second end surface upright post (27);
the output state monitoring group comprises an incomplete gear I (28) coaxially fixed on the output shaft (22) and at least one micro-control switch seven (28-1), wherein the incomplete gear I (28) is provided with a smooth arc section (29) and a gear section (30), and the micro-control switch seven (28-1) is in abutting fit with the gear section (30).
2. A shutter operator according to claim 1, characterized in that: the input state monitoring group further comprises a micro-control switch five (23-5) and a micro-control switch six (23-6), wherein the micro-control switch I (23-1), the micro-control switch II (23-2), the micro-control switch five (23-5) and the micro-control switch six (23-6) are in square four-point layout with an input shaft (21) as a center, and the short-diameter circular arc section (24) and the long-diameter circular arc section (25) bisect the cam (23).
3. A shutter operator according to claim 2, characterized in that: the micro-control switch III (23-3) and the micro-control switch IV (23-4) are respectively overlapped on the micro-control switch V (23-5) and the micro-control switch V (23-6).
4. A shutter operator according to claim 2, characterized in that: the micro-control switch I (23-1) is off, the micro-control switch II (23-2) is off, the micro-control switch III (23-3) is on, the micro-control switch IV (23-4) is on, the micro-control switch V (23-5) is on, and the micro-control switch VI (23-6) is in an input disconnection state;
the micro-control switch I (23-1) is on, the micro-control switch II (23-2) is off, the micro-control switch III (23-3) is off, the micro-control switch IV (23-4) is off, the micro-control switch V (23-5) is on, and the micro-control switch VI (23-6) is in an input on state when being off;
the micro-control switch I (23-1) is off, the micro-control switch II (23-2) is on, the micro-control switch III (23-3) is off, the micro-control switch IV (23-4) is off, the micro-control switch V (23-5) is off, and the micro-control switch VI (23-6) is on, and the input is in a grounding state.
5. A shutter operator according to claim 1, characterized in that: the output state monitoring group further comprises a second incomplete gear (31) which is consistent with the first incomplete gear (28) in projection, and a micro-control switch eight (28-2) which is matched with the second incomplete gear (31).
6. A shutter operator according to claim 5, characterized in that: the output state monitoring group further comprises a micro-control switch nine (28-3) and a micro-control switch ten (28-4), and lugs (32) are symmetrically arranged on the first incomplete gear (28) and the second incomplete gear (31).
7. A shutter operator according to claim 6, characterized in that: the micro-control switch nine (28-3) is off, and the micro-control switch ten (28-4) is on and is in an output off state;
the micro-control switch nine (28-3) is on, and the micro-control switch ten (28-4) is off and is in an output on state;
and the micro-control switch nine (28-3) is in an off state, and the micro-control switch ten (28-4) is in an output grounding state when being in the off state.
8. A shutter operator according to claim 6, characterized in that: the micro-control switch seven (28-1) is in a switch jumping state, and the micro-control switch eight (28-2) is in an off-to-on process state when in the switch jumping state;
the micro-control switch seven (28-1) is in a switch jumping state, and the micro-control switch eight (28-2) is in a process state of being disconnected to the ground when being closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294255.XA CN114050062B (en) | 2021-11-03 | 2021-11-03 | Manipulator for shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111294255.XA CN114050062B (en) | 2021-11-03 | 2021-11-03 | Manipulator for shutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114050062A CN114050062A (en) | 2022-02-15 |
| CN114050062B true CN114050062B (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111294255.XA Active CN114050062B (en) | 2021-11-03 | 2021-11-03 | Manipulator for shutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114050062B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123155A (en) * | 2006-08-09 | 2008-02-13 | 三菱电机株式会社 | Outside operation handle for shutter |
| CN102129922A (en) * | 2010-01-13 | 2011-07-20 | 株式会社东芝 | Switch operating device |
| CN103035425A (en) * | 2011-09-29 | 2013-04-10 | Tkd株式会社 | Operating device for three-position switch |
| CN105269771A (en) * | 2015-11-24 | 2016-01-27 | 上海为彪汽配制造有限公司 | Automatic demolding reverse injection mold and use method |
| KR102145263B1 (en) * | 2019-10-31 | 2020-08-19 | 한국철도기술연구원 | Switching apparatus |
-
2021
- 2021-11-03 CN CN202111294255.XA patent/CN114050062B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123155A (en) * | 2006-08-09 | 2008-02-13 | 三菱电机株式会社 | Outside operation handle for shutter |
| CN102129922A (en) * | 2010-01-13 | 2011-07-20 | 株式会社东芝 | Switch operating device |
| CN103035425A (en) * | 2011-09-29 | 2013-04-10 | Tkd株式会社 | Operating device for three-position switch |
| CN105269771A (en) * | 2015-11-24 | 2016-01-27 | 上海为彪汽配制造有限公司 | Automatic demolding reverse injection mold and use method |
| KR102145263B1 (en) * | 2019-10-31 | 2020-08-19 | 한국철도기술연구원 | Switching apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114050062A (en) | 2022-02-15 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 19, Building 1, Phase II, Machinery Manufacturing Park, Feng County Economic Development Zone, Xuzhou City, Jiangsu Province, China 221700 Patentee after: Jiaxing Xinbaozhan Mechanical & Electrical Technology Co.,Ltd. Country or region after: China Address before: 314100 No. 168 Lingtou Branch Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Jiaxing letter guarantee exhibition Electromechanical Science and Technology Co.,Ltd. Country or region before: China |