CN113483036B - Constant-speed stable driving control mechanism - Google Patents
Constant-speed stable driving control mechanism Download PDFInfo
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- CN113483036B CN113483036B CN202110841606.8A CN202110841606A CN113483036B CN 113483036 B CN113483036 B CN 113483036B CN 202110841606 A CN202110841606 A CN 202110841606A CN 113483036 B CN113483036 B CN 113483036B
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a constant-speed stable driving control mechanism which comprises a fixed frame, a stable adjusting device, a supporting frame and a constant-speed driving mechanism, wherein the constant-speed driving mechanism is fixedly arranged inside the fixed frame, the stable adjusting device is fixedly arranged on one side of the constant-speed driving mechanism through the supporting frame, a rotating control disc is arranged in the constant-speed driving mechanism, the middle part of the front end of the rotating control disc is fixedly connected with a conveying shaft, one end of the rotating control disc is fixedly connected with an adjusting device, and a rotating drive disc is arranged on one side of the rotating control disc. The invention can make the device rotating at high speed rotate to the appointed speed and then synchronously and accurately drive the device with slower rotating speed to synchronously and intermittently work, and the rotating speed during driving can be adjusted and controlled.
Description
Technical Field
The invention relates to the technical field of drive control and regulation, in particular to a constant-speed stable drive control mechanism.
Background
Along with the progress of industrialization often can make two machines in the in-process of work only when a mechanical work rotates to certain speed another machinery can carry out the operation of synchronization, when the rotational speed drops to certain rotational speed another machinery also stops to move, prior art adopts two drive arrangement to combine detection device synchronous use to reach this operating mode more, but the in-process that uses often can have the error, can not realize carrying out real-time accurate linkage between two mechanical devices, consequently need a device to solve above-mentioned problem urgently, make a machinery another machinery can carry out synchronous intermittent rotation work when reaching appointed high-speed rotational speed, another machinery just can automatic stop work when high-speed pivoted mechanical rotational speed reduces, thereby can synchronous accurate make carry out work and linkage between two devices.
Disclosure of Invention
The present invention is directed to a constant speed stable driving control mechanism to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a constant-speed stable driving control mechanism comprises a fixed frame, a stable adjusting device, a supporting frame and a constant-speed driving mechanism, wherein the constant-speed driving mechanism is fixedly arranged in the fixed frame, the stable adjusting device is fixedly arranged on one side of the constant-speed driving mechanism through the supporting frame, a rotating control disc is arranged in the constant-speed driving mechanism, the middle part of the front end of the rotating control disc is fixedly connected with a connecting conveying shaft, one end of the rotating control disc is fixedly connected with an adjusting device, one side of the rotating control disc is provided with a rotating drive disc, the rotating drive disc is uniformly provided with a first driving adjusting groove, the first driving adjusting groove is provided with four first driving adjusting grooves, the first driving adjusting groove is symmetrically and fixedly provided with an arc guide plate at four ends, a limiting column is arranged in the adjusting device, a sliding limiting clamping groove is arranged in the limiting column, the sliding limiting clamping plate is slidably clamped with a sliding adjusting column, a second adjusting buffer spring is fixedly arranged between the upper end of the sliding clamping groove and the upper end of the limiting column, a balance weight is fixedly connected with a balance weight adjusting spring, the balance weight adjusting spring is fixedly connected with a balance weight adjusting frame, and a balance weight adjusting spring is fixedly connected with a balance weight adjusting frame, a driving shaft is fixedly arranged in the middle of the inner end face of the balance weight control frame, a driving control frame is arranged in the stabilizing and adjusting device, a limiting frame is fixedly connected in the middle of one end of the driving control frame, a limiting inserted rod is slidably clamped in the limiting frame, a second driving and adjusting groove is formed in the driving control frame, a driving disc is rotatably arranged in the second driving and adjusting groove, and an arc-shaped driving toothed plate is fixedly connected at one end, far away from the limiting frame, of the driving control frame, the outer side of one end of the drive control frame connected with the arc-shaped drive toothed plate is fixedly provided with an extrusion adjusting column through a bolt, one side of the drive control frame is rotatably provided with a drive gear, the arc-shaped drive toothed plate is meshed with the drive gear, the output driving shaft is fixedly connected to the middle of the outer end face of the driving gear, a limiting clamping plate is rotatably mounted at the upper end of a supporting frame fixedly mounted on one side of the driving gear through a reset spring, and an adjusting control column is fixedly connected to one end of the limiting clamping plate.
Preferably, the extrusion adjusting column is arranged in an arc shape, and the front end of the limiting clamping plate can be clamped in a gap between teeth on the driving gear.
Preferably, the tail end of the limiting insertion rod is fixedly connected to the fixed frame, and the connecting conveying shaft is rotatably inserted into the fixed frame.
Preferably, the middle part of the front end face of the rotating driving disc is fixedly connected with the edge of the driving disc through a linkage rod, the supporting frame is fixedly connected with the fixed frame, and the adjusting control column and the limiting clamping plate are arranged in an L shape.
Preferably, the lantern ring is installed in the outside rotation of drive shaft, just the rotatable joint of drive shaft is in the inside in first drive adjustment tank.
Preferably, the bottom thread of the limiting column is rotatably provided with a support bottom support, and the bottom end of the adjusting spring is fixedly connected with the middle part of the upper end of the support bottom support.
Compared with the prior art, the invention has the following beneficial effects:
this device rotates to certain speed through rotating the control panel in-process of using and just can move adjusting spring outwards with slip control post and counter weight control frame under the effect of centrifugal force, the drive shaft that stretches out with outwards sliding this moment alright drive the rotation of drive-disc in the inside of drive adjustment tank through arc deflector rotation joint, thereby indirect drive-disc rotates, utilize the firm drive gear rotation of pivoted drive-disc and arc drive pinion rack, thereby pivoted drive gear utilizes the output drive shaft to drive the device of connecting, thereby realize the collaborative work and the operation between two devices, and place the counter weight quantity inside counter weight control frame through revolving wrong fastening screw post control, can control and adjust just can be with counter weight control frame when connecting transport axle and rotating the control panel and rotate to appointed speed, drive shaft and spacing inserted bar utilize centrifugal force outwards to get rid of, thereby can adjust and control the speed difference when the steady speed drive adjusting device of constant speed drive carries out work.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic structural diagram of a constant speed driving mechanism according to the present invention;
FIG. 3 is a schematic view of the adjusting device of the present invention;
fig. 4 is a schematic structural diagram of the stabilization regulating device of the present invention.
In the figure: 1-a fixed frame, 2-a stable adjusting device, 3-a support frame, 4-a constant speed driving mechanism, 5-a first driving adjusting groove, 6-a rotating driving disc, 7-a connecting conveying shaft, 8-a rotating control disc, 9-an adjusting device, 10-an arc guide plate, 11-a fastening threaded column, 12-a balancing weight, 13-a balancing weight control frame, 14-a first adjusting buffer spring, 15-a limiting column, 16-a sliding limiting clamping groove, 17-a second adjusting buffer spring, 18-an adjusting spring, 19-a sliding clamping plate, 20-a sliding adjusting column, 21-a driving shaft, 22-a limiting inserted rod, 23-a limiting frame, 24-a driving control frame, 25-an extruding adjusting column, 26-a reset spring, 27-a limiting clamping plate, 28-an output driving shaft, 29-a driving gear, 30-an arc driving toothed plate, 31-an adjusting control column, 32-a second driving adjusting groove and 33-a driving disc.
Detailed Description
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: a constant-speed stable driving control mechanism comprises a fixed frame 1, a stable adjusting device 2, a support frame 3 and a constant-speed driving mechanism 4, wherein the constant-speed driving mechanism 4 is fixedly arranged inside the fixed frame 1, the stable adjusting device 2 is fixedly arranged on one side of the constant-speed driving mechanism 4 through the support frame 3, a rotating control disc 8 is arranged in the constant-speed driving mechanism 4, the middle part of the front end of the rotating control disc 8 is fixedly connected with a connecting conveying shaft 7, one end of the rotating control disc 8 is fixedly connected with an adjusting device 9, one side of the rotating control disc 8 is provided with a rotating driving disc 6, first driving adjusting grooves 5 are uniformly formed in the rotating driving disc 6, four first driving adjusting grooves 5 are provided, arc-shaped guide plates 10 are symmetrically and fixedly arranged at four ends of the rotating driving disc 6, a limiting column 15 is arranged in the adjusting device 9, and a sliding limiting clamping groove 16 is formed in the limiting column 15, a sliding adjusting column 20 is slidably clamped in the sliding limiting clamping groove 16 through a sliding clamping plate 19, a second adjusting buffer spring 17 is fixedly arranged between the upper end of the sliding clamping plate 19 and the inner wall of the upper end of the limiting column 15, a first adjusting buffer spring 14 is fixedly arranged between the bottom end of the sliding clamping plate 19 and the inner wall of the bottom end of the limiting column 15, the limiting column 15 and the sliding adjusting column 20 are both arranged in a hexagonal prism shape, six first adjusting buffer springs 14 and six second adjusting buffer springs 17 are arranged, an adjusting spring 18 is fixedly arranged between the middle part of the bottom end of the sliding adjusting column 20 and the inner part of the limiting column 15, the upper end of the sliding adjusting column 20 is fixedly connected with a counterweight control frame 13, a counterweight block 12 is fixedly arranged in each of six installation grooves formed in the counterweight control frame 13 in an extrusion manner, and fastening threaded columns 11 are uniformly and threadedly inserted in the counterweight control frame 13, the bottom end of the fastening threaded column 11 is in extrusion contact with the upper end face of the counterweight block 12, a driving shaft 21 is fixedly mounted in the middle of the inner end face of the counterweight control frame 13, a driving control frame 24 is mounted in the stabilizing and adjusting device 2, a limiting frame 23 is fixedly connected to the middle of one end of the driving control frame 24, a limiting inserted rod 22 is clamped in the limiting frame 23 in a sliding mode, a second driving and adjusting groove 32 is formed in the driving control frame 24, a driving disc 33 is mounted in the second driving and adjusting groove 32 in a rotating mode, an arc-shaped driving toothed plate 30 is fixedly connected to one end, far away from the limiting frame 23, of the driving control frame 24, an extrusion adjusting column 25 is fixedly mounted on the outer side of one end, connected with the arc-shaped driving toothed plate 30, of the driving control frame 24 through bolts, a driving gear 29 is rotatably mounted on one side of the driving control frame 24, the arc-shaped driving toothed plate 30 is meshed with the driving gear 29, an output driving shaft 28 is fixedly connected to the middle of the outer end face of the driving gear 29, a limiting clamping plate 27 is rotatably mounted on the upper end of the support frame 3, and an adjusting column 31 is fixedly connected with an adjusting control column 31.
The extrusion adjusting column 25 is arranged in an arc shape, the front end of a limiting clamping plate 27 can be clamped in a gap between teeth on a driving gear 29, the tail end of a limiting insertion rod 22 is fixedly connected to a fixed frame 1, a connecting conveying shaft 7 is connected to rotate and inserted into the fixed frame 1, the middle of the front end face of a rotating driving disc 6 is fixedly connected with the edge of a driving disc 33 through a linkage rod, a supporting frame 3 is fixedly connected with the fixed frame 1, the adjusting control column 31 and the limiting clamping plate 27 are arranged in an L shape, a lantern ring is rotatably installed on the outer portion of a driving shaft 21, the driving shaft 21 can be rotatably clamped in a first driving adjusting groove 5, a supporting base is rotatably installed on the bottom end thread of a limiting column 15, the bottom end of an adjusting spring 18 is fixedly connected with the middle of the upper end of the supporting base, the adjusting spring 18 can be replaced through screwing the supporting base, and elasticity and tension of the adjusting spring 18 are ensured to meet requirements, the sliding adjusting spring 18 can be driven to slide outwards by rotating the rotating control disc 8 to a certain speed, the driving shaft 21 which slides outwards and extends out at the same time can drive the rotating drive disc 6 to rotate through the arc guide plate 10 in the first driving adjusting groove 5, so that the driving disc 33 is indirectly driven to rotate, the rotating drive gear 29 which is stable by the rotating drive disc 33 and the arc drive toothed plate 30 rotates, the rotating drive gear 29 drives the connected devices by the output driving shaft 28, the cooperative work and operation between the two devices are realized, the number of the counter weights 12 which are arranged in the counter weight control frame 13 is controlled by screwing the fastening threaded column 11, and the counter weight control frame 13 can be controlled and adjusted when the connecting conveying shaft 7 and the rotating control disc 8 rotate to a specified speed, the driving shaft 21 and the limit inserted rod 22 are thrown outwards by centrifugal force, so that the speed difference of the constant speed driving mechanism 4 driving the stable adjusting device 2 can be adjusted and controlled.
The working principle is as follows: firstly, the connection conveying shaft 7 is connected with a machine with a higher rotating speed, then the output driving shaft 28 is connected with a machine with a lower rotating speed, when the machine with the higher rotating speed works, the connection conveying shaft 7 can drive the rotation control disc 8 to rotate, when the rotating speed reaches the specified requirement, at the moment, under the action of centrifugal force, the counterweight block 12, the counterweight control frame 13, the sliding adjusting column 20 and the driving shaft 21 utilize the sliding clamping plate 19 to pull the adjusting spring 18 to extend outwards, when the driving shaft 21 rotates after extending outwards, the counterweight block can be guided into the first driving adjusting groove 5 through the arc-shaped guide plate 10, so that the rotating driving shaft 21 can drive the rotation driving disc 6 to rotate, so that the rotating driving disc 6 can drive the driving disc 33 to rotate in the second driving adjusting groove 32, the second driving adjusting groove 32 is in a rectangular shape, and the driving disc 33 is arranged in a triangular shape protruding outwards, and because the middle part of the front end face of the rotary driving disk 6 is fixedly connected with the edge of the driving disk 33 through the linkage rod, the rotary driving disk 33 can control the transverse movement of the driving control frame 24 by utilizing the second driving adjusting groove 32 and simultaneously control one end provided with the arc-shaped driving toothed plate 30 to carry out synchronous up-and-down fluctuating movement, the stability of the driving control frame 24 and the limiting frame 23 in the transverse sliding process can be controlled by sliding the limiting inserted rod 22 in the limiting frame 23, the intermittent rotation of the driving gear 29 can be controlled when the up-and-down fluctuating movement is carried out on one end provided with the arc-shaped driving toothed plate 30 of the driving control frame 24, the connected device can be driven by the rotary driving gear 29 through the output driving shaft 28 to carry out synchronous intermittent rotation, and the extrusion adjusting column 25 can extrude and adjust the control column 31 when one end of the driving control frame 24 fluctuates upwards through the arc-shaped driving toothed plate 30 to drive the output driving shaft 28 to rotate The limiting clamping plate 27 is rotated, so that the driving gear 29 cannot be limited and clamped by the front end of the limiting clamping plate 27, the driving gear 29 is transversely reset when the front end of the driving control frame 24 is lifted to the highest point, the extrusion adjusting column 25 and the adjusting control column 31 are separated under the elastic action of the reset spring 26 at the moment, so that the limiting clamping plate 27 can clamp and fix the driving gear 29 in a gap between teeth, the driving gear 29 and the output driving shaft 28 are stable in intermittent rotation, when the rotating speed of the connecting conveying shaft 7 and the rotating control disk 8 is lower than a certain degree, the centrifugal force generated when the rotating control disk 8 rotates is not enough to enable the balancing weight 12, the balancing weight control frame 13 and the sliding adjusting column 20 to slide outwards, the adjusting spring 18 contracts so that the balancing weight 12, the balancing weight control frame 13, the sliding adjusting column 20 and the driving shaft 21 are retracted inwards along the sliding limiting clamping groove 16, at this moment, the rotating driving shaft 21 will not contact the arc-shaped guide plate 10, so that the driving disk 33, the driving gear 29 and the output driving shaft 28 stop working, thereby realizing that the output driving shaft 28 rotates synchronously only when the rotating speed of the connecting conveying shaft 7 reaches the specified requirement, the rotating speed of the connecting conveying shaft 7 is lower than the specified requirement, and the output driving shaft 28 stops working automatically, the quantity of the counter weights 12 fixed in the counterweight control frame 13 can be selected by screwing the fastening threaded column 11, thereby the quality of the whole mating can be controlled and adjusted, therefore, the driving shaft 21 can extend outwards when the connecting conveying shaft 7 and the rotating control disc 8 rotate at different speeds, thereby indirectly adjusting and controlling the different rotating speeds of the connecting conveying shaft 7, and the output driving shaft 28 can be driven to rotate and work only when the specified rotating speed is reached according to the different using requirements, the device can synchronously and accurately drive the device with the slower rotating speed to perform synchronous intermittent work after the device rotating to the specified speed in the using process, and the rotating speed during driving can be adjusted and controlled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a drive control mechanism is stabilized to constant speed, includes fixed frame (1), stabilizes adjusting device (2), support frame (3) and constant speed actuating mechanism (4), its characterized in that: the device is characterized in that the constant-speed driving mechanism (4) is fixedly arranged in the fixed frame (1), the stabilizing and adjusting device (2) is fixedly arranged on one side of the constant-speed driving mechanism (4) through a support frame (3), a rotating control disc (8) is arranged in the constant-speed driving mechanism (4), the middle part of the front end of the rotating control disc (8) is fixedly connected with a conveying shaft (7), one end of the rotating control disc (8) is fixedly connected with an adjusting device (9), one side of the rotating control disc (8) is provided with a rotating drive disc (6), the rotating drive disc (6) is uniformly provided with first driving adjusting grooves (5), the first driving adjusting grooves (5) are provided with four, four ends of the rotating drive disc (6) are symmetrically and fixedly provided with arc guide plates (10), a limiting column (15) is arranged in the adjusting device (9), the inside of the limiting column (15) is provided with sliding limiting clamping grooves (16), the inside of the sliding limiting clamping grooves (16) is provided with sliding adjusting plate columns (20) through sliding clamping plates (19), a second adjusting spring (17) is arranged between the upper end of the sliding limiting column (15) and a buffering spring (17) is arranged between the inner wall of the limiting plate (19), and the limiting column (15) and the sliding adjusting column (20) are both arranged in a hexagonal prism shape, and the first adjusting buffer spring (14) and the second adjusting buffer spring (17) are both provided with six, an adjusting spring (18) is fixedly installed between the bottom middle part of the sliding adjusting column (20) and the inside of the limiting column (15), the upper end of the sliding adjusting column (20) is fixedly connected with a counterweight control frame (13), the inside of the six installation grooves arranged on the counterweight control frame (13) is fixedly installed with a counterweight block (12), the counterweight control frame (13) is uniformly threaded and fixedly inserted with a fastening threaded column (11), the bottom end of the fastening threaded column (11) is in compression contact with the upper end face of the counterweight block (12), the inner end face middle part of the counterweight control frame (13) is fixedly installed with a driving shaft (21), a driving control frame (24) is installed in the stabilizing adjusting device (2), one end middle part of the driving control frame (24) is fixedly connected with a limiting frame (23), the inside of the limiting frame (23) is slidably clamped with a limiting rod (22), the driving control frame (24) is provided with an arc-shaped driving control groove (32), and a second driving control groove (32) is installed on the driving control frame (32), the one end outside that drive control frame (24) are connected with arc drive pinion rack (30) has extrusion regulation post (25) through bolt fixed mounting, one side of drive control frame (24) is rotated and is installed drive gear (29), just arc drive pinion rack (30) are connected with drive gear (29) meshing, the outer terminal surface middle part fixedly connected with output drive shaft (28) of drive gear (29), drive gear (29) one side fixed mounting's support frame (3) upper end is rotated through reset spring (26) and is installed spacing cardboard (27), the one end fixedly connected with regulation control post (31) of spacing cardboard (27).
2. A constant speed stable drive control mechanism according to claim 1, characterized in that: the extrusion adjusting column (25) is arranged in an arc shape, and the front end of the limiting clamping plate (27) can be clamped in a gap between teeth on the driving gear (29).
3. A constant speed stable drive control mechanism according to claim 1, characterized in that: the tail end of the limiting insertion rod (22) is fixedly connected to the fixed frame (1), and the connecting conveying shaft (7) is rotatably inserted into the fixed frame (1).
4. A constant-speed stable drive control mechanism as claimed in claim 1, wherein: the middle part of the front end face of the rotating driving disc (6) is fixedly connected with the edge of the driving disc (33) through a linkage rod, the support frame (3) is fixedly connected with the fixed frame (1), and an L-shaped adjusting control column (31) and a limiting clamping plate (27) are arranged between the adjusting control column and the limiting clamping plate.
5. A constant speed stable drive control mechanism according to claim 1, characterized in that: the lantern ring is installed in the outside rotation of drive shaft (21), just drive shaft (21) rotatable joint is in the inside of first drive adjustment tank (5).
6. A constant speed stable drive control mechanism according to claim 1, characterized in that: the bottom thread of the limiting column (15) is rotatably provided with a supporting bottom support, and the bottom end of the adjusting spring (18) is fixedly connected with the middle part of the upper end of the supporting bottom support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841606.8A CN113483036B (en) | 2021-07-26 | 2021-07-26 | Constant-speed stable driving control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841606.8A CN113483036B (en) | 2021-07-26 | 2021-07-26 | Constant-speed stable driving control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113483036A CN113483036A (en) | 2021-10-08 |
| CN113483036B true CN113483036B (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110841606.8A Active CN113483036B (en) | 2021-07-26 | 2021-07-26 | Constant-speed stable driving control mechanism |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE354799C (en) * | 1971-02-24 | 1977-07-28 | Johansson R A G | SAFETY DEVICE FOR A CENTRIFUCAL COUPLING WITH A MOTOR SAW |
| JP3447401B2 (en) * | 1994-11-28 | 2003-09-16 | 本田技研工業株式会社 | Belt-type continuously variable transmission |
| CN106545599B (en) * | 2016-12-21 | 2018-08-07 | 张家港川梭车业有限公司 | A kind of centrifugal mechanism for fluid drive |
| CN212337958U (en) * | 2020-08-31 | 2021-01-12 | 江苏共立科技有限公司 | Centrifugal clutch |
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2021
- 2021-07-26 CN CN202110841606.8A patent/CN113483036B/en active Active
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| CN113483036A (en) | 2021-10-08 |
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Effective date of registration: 20221222 Address after: No. 5, Kelong Road, West District, Yingkou City, China (Liaoning) Pilot Free Trade Zone, Yingkou City, Liaoning Province, 115000 Applicant after: YINGKOU GUANHUA MACHINE TOOLS CO.,LTD. Address before: 314500 No. 1082, Jinxiu Road, Chongfu Town, Tongxiang City, Jiaxing City, Zhejiang Province Applicant before: Liu Yanzu |
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