CN108821053B - Anti-falling high-safety protection mechanism - Google Patents
Anti-falling high-safety protection mechanism Download PDFInfo
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- CN108821053B CN108821053B CN201810901352.2A CN201810901352A CN108821053B CN 108821053 B CN108821053 B CN 108821053B CN 201810901352 A CN201810901352 A CN 201810901352A CN 108821053 B CN108821053 B CN 108821053B
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- side rail
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- 230000004224 protection Effects 0.000 title claims abstract description 49
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 239000010410 layer Substances 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 17
- 210000001624 hip Anatomy 0.000 claims description 3
- 230000009471 action Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
Abstract
The application discloses a falling-preventing high-safety protection mechanism, which comprises a guide seat, a driving rod, a protection layer and a counterweight structure, wherein the counterweight structure pulls the driving rod to the opposite side of an elevator door opening; the driving rod is also provided with a rotatable guide wheel, the guide seat is provided with an upper inclined guide section, a vertical guide section and a lower inclined guide section, the vertical guide section is fixed on a door frame on one side of the car opening and closing door, the lower end of the upper inclined guide section is connected with the vertical guide section, and the upper end of the upper inclined guide section extends obliquely to the middle of the car; the upper end of the lower inclined guide section is connected with the vertical guide section, the lower end of the lower inclined guide section extends obliquely towards the middle of the car, and the upper inclined guide section, the vertical guide section and the lower inclined guide section respectively roll and abut against the guide wheels along with the up-and-down movement of the car; compared with the prior art, the application completely adopts a mechanical structure, and ensures the stability of the performance of the whole mechanism.
Description
Technical Field
The application relates to the field of elevator safety protection, in particular to a falling-preventing high-safety protection mechanism.
Background
Along with the continuous development of science and technology and the continuous progress of people's living standard, the elevator of building as one of the building standard of high building is also become the auxiliary assembly that can't leave in people's daily life everywhere, and the elevator generally refers to the equipment that leans on the motor to drive and directly goes up straight directly down, and it all includes car, vertical track, motor and balancing weight, the car can go on elevating movement along vertical track under the drive of motor, the balancing weight then links to each other with the car through top fixed pulley, balancing weight mainly used balances the weight of car.
In the running process of the elevator, as the elevator car reciprocates up and down on the vertical track, when the elevator car is positioned at a higher position, the downward space of the elevator car is usually free of any barrier, and once the situation that the lower elevator door is opened or pried open maliciously occurs, people entering the elevator have the risk of falling directly from a high place, so that the safety hazard is brought to people, and the prior art is realized by arranging the protective net, but either an electronic structure is adopted without absolute safety, or the structural modification of the existing elevator is too large, the cost is greatly increased, and the implementation of the safety protection mechanism on the floor is greatly hindered.
In view of the above, the present inventors have made intensive studies to solve the above problems.
Disclosure of Invention
The application mainly aims to provide a falling-preventing high-safety protection mechanism which adopts a purely mechanical structure, does not need to carry out any structural change on a traditional elevator, and greatly improves the safety and the economical efficiency of the protection mechanism in industrialization.
In order to achieve the above object, the solution of the present application is:
the anti-falling high-safety protection mechanism comprises a guide seat, a driving rod, a protection layer and a counterweight structure for pulling the driving rod to the opposite side of an elevator door opening, wherein one end of the protection layer is fixed on the lower side of the elevator door opening, and the other end of the protection layer is fixedly connected to the driving rod; the driving rod is also provided with a rotatable guide wheel, the guide seat is provided with an upper inclined guide section, a vertical guide section and a lower inclined guide section, the vertical guide section is fixed on a door frame on one side of the car opening and closing door, the lower end of the upper inclined guide section is connected with the vertical guide section, and the upper end of the upper inclined guide section extends obliquely to the middle of the car; the upper end of the declined guide section is connected with the vertical guide section, the lower end of the declined guide section extends obliquely towards the middle of the car, and the upward declined guide section, the vertical guide section and the downward declined guide section respectively roll against the guide wheels along with the up-and-down movement of the car.
Further, the guide wheels have two groups respectively provided on both sides of the driving lever, and the guide seats also have two groups respectively provided on both sides of the opening and closing door of the car, each guide wheel corresponding to one guide seat.
Further, two connecting seats are arranged between the two guide seats, and an integrally formed shape of a mouth is formed between the two connecting seats and the two vertical guide sections.
Further, the upper inclined guide section, the vertical guide section and the lower inclined guide section form an upper bottom and two waists of an isosceles trapezoid.
Further, the counterweight structure is provided with a first side rail, a second side rail, a first weight, a second weight, a first fixed pulley, a second fixed pulley, a first pull rope and a second pull rope, wherein the first side rail and the second side rail are distributed on two sides of the car, one end of the first pull rope is connected to one side of the driving rod, the other end of the first pull rope is connected with the first weight after bypassing the first fixed pulley, one end of the second pull rope is connected to the other side of the driving rod, and the other end of the second pull rope is connected with the second weight after bypassing the second fixed pulley.
Further, the two ends of the driving rod are further provided with a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel respectively correspond to the first side rail and the second side rail, the inner sides of the first side rail and the second side rail are further respectively provided with a first inner stop block and a second inner stop block, and the first inner stop block and the second inner stop block respectively limit the first rotating wheel and the second rotating wheel.
Further, the first fixed pulley and the second fixed pulley are both rotationally fixed on a vertical rail guiding the car.
Further, the first fixed pulley and the second fixed pulley are both rotationally fixed on a wall at the rear side of the car.
Further, the first side rail and the second side rail are both obliquely arranged, and the height of the first side rail and the second side rail at a position close to the side of the car opening and closing door is lower than that of the first side rail and the second side rail at a position far away from the side of the car opening and closing door.
Further, the protective layer is an anti-falling net, an anti-falling canvas or an anti-falling soft cushion.
After the structure is adopted, the anti-falling high-safety protection mechanism only needs to carry out additional treatment on the existing elevator, mainly comprises a guide seat arranged outside a car, and is provided with a driving rod, a protection layer and a counterweight structure, when the elevator car leaves the protection mechanism, the protection layer is in an opening state under the action of the counterweight structure, so that the protection effect is achieved.
When the elevator car moves from top to bottom and passes through the whole protection mechanism, the downward inclined guide section firstly rolls and abuts against the guide wheel on the driving rod, and the driving rod moves towards one side of the door of the elevator car under the drive of the guide wheel; when the guide wheels roll on the vertical guide sections, the driving rod reaches the innermost position, and the protective layer is fully contracted at the moment; when the guide wheel enters the upper inclined guide section through the vertical guide section, the driving rod slowly reaches the outermost position under the action of the counterweight structure, and all the protective layers are fully opened at the moment, so that the protective effect is achieved.
When the elevator car moves from bottom to top and passes through the whole protection mechanism, the upward inclined guide section firstly rolls and abuts against the guide wheel on the driving rod, and the driving rod moves towards one side of the door of the elevator car under the drive of the guide wheel; when the guide wheels roll on the vertical guide sections, the driving rod reaches the innermost position, and the protective layer is fully contracted at the moment; when the guide wheel enters the declining guide section through the vertical guide section, the driving rod slowly reaches the outermost position under the action of the counterweight structure, and all the protective layers are fully opened at the moment, so that the protective effect is achieved.
Compared with the prior art, the elevator is completely of a mechanical structure, the stability of the performance of the whole mechanism is guaranteed, the elevator is free from any structural change to the existing elevator, and the elevator can be realized by adding a small amount of structures on the basis of the existing elevator, so that the elevator is very convenient to apply.
Drawings
Fig. 1 is a schematic diagram of the whole mechanism of the anti-falling high-safety protection mechanism.
Fig. 2 is another angular schematic view of fig. 1.
Fig. 3 is a schematic view of the downward inclined guide section and the guide wheel.
Fig. 4 is a schematic view of a car at a stop floor.
Fig. 5 is a schematic cross-sectional view of fig. 4.
Fig. 6 is a schematic diagram of a car structure.
Fig. 7 is a schematic view of the structure with the car removed.
Fig. 8 is a schematic view of the fixed sheave fixed to the rear side wall of the car.
Fig. 9 is a schematic view of a side rail tilt arrangement.
In the figure:
a guide seat 1; an upwardly inclined guide section 11; a vertical guide section 12; a downward inclined guide section 13; a connection base 14; a drive rod 2; a guide wheel 21; a first rotating wheel 22; a second rotating wheel 23; a protective layer 3; a counterweight structure 4; a first side rail 411; a second side rail 412; a first weight 421, a second weight 422; a first fixed pulley 431; a second fixed pulley 432; a first pull cord 441; a second pull cord 442; a first inner stopper 451; a second inner stopper 452; a vertical rail 5; a car 6; an elevator door 7.
Detailed Description
In order to further explain the technical scheme of the application, the application is explained in detail by specific examples.
As shown in fig. 1 to 9, the anti-falling high safety protection mechanism comprises a guide seat 1, a driving rod 2, a protection layer 3 and a counterweight structure 4 for pulling the driving rod 2 to the opposite side of an opening of an elevator door 7, wherein one end of the protection layer 3 is fixed on the lower side of the opening of the elevator door 7, and the other end is fixedly connected to the driving rod 2; the driving rod 2 is also provided with a rotatable guide wheel 21, the guide seat 1 is provided with an upper inclined guide section 11, a vertical guide section 12 and a lower inclined guide section 13, the vertical guide section 12 is fixed on a door frame on one side of a door opening and closing of the car 6, the lower end of the upper inclined guide section 11 is connected with the vertical guide section 12, and the upper end of the upper inclined guide section 11 extends obliquely to the middle of the car 6; the upper end of the declined guide section 13 is connected with the vertical guide section 12, the lower end of the declined guide section 13 extends obliquely towards the middle of the car 6, and the upward declined guide section 11, the vertical guide section 12 and the declined guide section 13 respectively roll against the guide wheels 21 along with the up-and-down movement of the car 6.
Therefore, the anti-falling high-safety protection mechanism disclosed by the application only needs to carry out additional treatment on the existing elevator, mainly comprises the steps of installing the guide seat 1 outside the elevator car 6, and arranging the driving rod 2, the protection layer 3 and the counterweight structure 4, wherein when the elevator car 6 leaves the protection mechanism, the protection layer 3 is in a stretching state under the action of the counterweight structure 4, so that the protection effect is achieved.
As shown in fig. 3 to 5, when the elevator car 6 moves from top to bottom through the whole protection mechanism, the downward inclined guide section 13 will firstly roll against the guide wheel 21 on the driving rod 2, and the driving rod 2 will move towards the door opening and closing side of the elevator car 6 under the driving of the guide wheel 21; when the guide wheel 21 rolls on the vertical guide section 12, the drive rod 2 reaches the innermost position, at which time the protective layer 3 is fully retracted; when the guide wheel 21 enters the upper inclined guide section 11 through the vertical guide section 12, the driving rod 2 slowly reaches the outermost position under the action of the counterweight structure 4, and all the protective layers 3 are fully opened at the moment, so that the protective effect is achieved.
When the elevator car 6 moves from bottom to top and passes through the whole protection mechanism, the upward inclined guide section 11 firstly rolls and abuts against the guide wheel 21 on the driving rod 2, and the driving rod 2 moves towards one side of the door opening and closing of the elevator car 6 under the driving of the guide wheel 21; when the guide wheel 21 rolls on the vertical guide section 12, the drive rod 2 reaches the innermost position, at which time the protective layer 3 is fully retracted; when the guide wheel 21 enters the declined guide section 13 through the vertical guide section 12, the driving rod 2 slowly reaches the outermost position under the action of the counterweight structure 4, and all the protective layers 3 are fully opened at the moment, so that the protective effect is achieved.
Preferably, in order to avoid the offset of the driving rod 2 and ensure the use effect of the protective layer 3, as shown in fig. 1, the guide wheels 21 are respectively arranged at two sides of the driving rod 2, the guide seats 1 are also respectively provided with two groups respectively arranged at the left side and the right side of the opening and closing door of the car 6, and each guide wheel 21 corresponds to one guide seat 1.
As shown in fig. 6, in order to enhance the structural strength of the guide seats 1, two connecting seats 14 are provided between the two guide seats 1, and an integrally formed shape of a mouth is formed between the two connecting seats 14 and the two vertical guide sections 12. In this way, the guide seat 1 and the connecting seat 14 form a stable integrally formed shape, so that hidden danger caused by easy deformation of the guide seat 1 is avoided.
As shown in fig. 6, the upper inclined guide section 11, the vertical guide section 12 and the lower inclined guide section 13 constitute an upper base and two waists of an isosceles trapezoid. In this way, the upward inclined guide section 11 and the downward inclined guide section 13 are symmetrical with respect to the horizontal plane, and can easily drive the driving rod 2 to move whether the elevator ascends or descends.
As shown in fig. 7, the counterweight structure 4 has a first side rail 411, a second side rail 412, a first weight 421, a second weight 422, a first fixed pulley 431, a second fixed pulley 432, a first pull rope 441 and a second pull rope 442, wherein the first side rail 411 and the second side rail 412 are disposed on two sides of the car 6, one end of the first pull rope 441 is connected to one side of the driving rod 2, the other end of the first pull rope 441 bypasses the first fixed pulley 431 and then is connected to the first weight 421, one end of the second pull rope 442 is connected to the other side of the driving rod 2, and the other end of the second pull rope 442 bypasses the second fixed pulley 432 and then is connected to the second weight 422. Through two stay cords and two pouring weights of symmetry setting, not only provide restoring force for actuating lever 2, owing to about two still make actuating lever 2 steady movements of setting up, be difficult for taking place the biasing. The first side rail 411 and the second side rail 412 restrict the movement of the driving lever 2 in the vertical direction so that it can move only in the horizontal plane.
Preferably, as shown in fig. 7 and 8, in order to further limit the biasing of the driving rod 2 and reduce the resistance when the driving rod 2 moves, the driving rod 2 is further formed with a first rotating wheel 22 and a second rotating wheel 23 at both ends thereof, the first rotating wheel 22 and the second rotating wheel 23 respectively correspond to the first side rail 411 and the second side rail 412, the inner sides of the first side rail 411 and the second side rail 412 are further formed with a first inner stopper 451 and a second inner stopper 452, respectively, and the first inner stopper 451 and the second inner stopper 452 respectively limit the first rotating wheel 22 and the second rotating wheel 23. In this way, the driving rod 2 does not fall off due to the occurrence of the offset, and the reliability of the movement of the driving rod 2 is further ensured.
Preferably, as shown in fig. 1, 2 and 7, the first fixed sheave 431 and the second fixed sheave 432 are both rotatably fixed to the vertical rail 5 guiding the car 6. The weight is located on the side part and is separated from the vertical rail 5 between the elevator car 6, and the lifting and descending of the weight cannot interfere with the movement of the elevator car 6, so that the stability is good.
Preferably, as another arrangement of the weights, the first and second fixed pulleys 431 and 432 are each rotatably fixed to a wall on the rear side of the car 6. The weight is arranged at the rear part of the side of the car 6, so that the running of the car 6 is not influenced, and the up-and-down running of the counterweight (not shown in the figure) of the car 6 is not influenced; thus, the space at the rear part of the elevator shaft is fully utilized, and the fixed pulley and the weight are convenient to install.
As shown in fig. 9, in order to further enhance the shielding capability of the shielding layer 3, the first side rail 411 and the second side rail 412 are each inclined, and the first side rail 411 and the second side rail 412 are located at a lower level near the door opening side of the car 6 than at a position far from the door opening side of the car 6. Like this, guard layer 3 is the slope setting, in case someone drops in guard layer 3, the people can slide along guard layer 3 to the one side that is close to car 6 switch door, has avoided because the fear of confusion leads to the people on guard layer 3 to turn over actuating lever 2 and fall in the elevator shaft.
Preferably, the protective layer 3 is a falling protection net, a falling protection canvas or a falling protection cushion.
In order to further secure the safety of the person on the protective layer 3, the protective mechanism further comprises an alarm device (not shown in the figure) and a wired telephone (not shown in the figure); once the falling of the person into the protective layer 3 is detected, the alarm device controls the elevator to stop running after detecting the falling of the person through the human body sensor, and alarms and plays a prompt tone to calm the falling person; the elevator is prevented from still running after falling into the protective layer 3 to cause the elevator car 6 to clamp the person, so that secondary injury caused by the running of the elevator is avoided. Meanwhile, people on the protective layer 3 can be connected with the five-party communication device through a wired telephone to contact with the outside, so that the outside can timely find out the occurrence of accidents and timely rescue actions.
Compared with the prior art, the elevator is completely of a mechanical structure, the stability of the performance of the whole mechanism is guaranteed, the elevator is free from any structural change to the existing elevator, and the elevator can be realized by adding a small amount of structures on the basis of the existing elevator, so that the elevator is very convenient to apply.
The above examples and drawings are not intended to limit the form or form of the present application, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present application.
Claims (8)
1. The anti-falling high-safety protection mechanism is characterized by comprising a guide seat, a driving rod, a protection layer and a counterweight structure for pulling the driving rod to the opposite side of an elevator door opening, wherein one end of the protection layer is fixed on the lower side of the elevator door opening, and the other end of the protection layer is fixedly connected to the driving rod; the driving rod is also provided with a rotatable guide wheel, the guide seat is provided with an upper inclined guide section, a vertical guide section and a lower inclined guide section, the vertical guide section is fixed on a door frame on one side of the car opening and closing door, the lower end of the upper inclined guide section is connected with the vertical guide section, and the upper end of the upper inclined guide section extends obliquely to the middle of the car; the upper end of the declined guide section is connected with the vertical guide section, the lower end of the declined guide section extends obliquely towards the middle part of the car, and the upper declined guide section, the vertical guide section and the declined guide section respectively roll and abut against the guide wheels along with the up-and-down movement of the car;
the guide wheels are respectively arranged at two sides of the driving rod, the guide seats are also respectively arranged at two groups at the left side and the right side of the car switch door, and each guide wheel corresponds to one guide seat;
the upper inclined guide section, the vertical guide section and the lower inclined guide section form an upper bottom and two waists of an isosceles trapezoid.
2. The fall protection mechanism of claim 1, wherein two connecting seats are provided between the two guide seats, and an integrally formed shape is formed between the two connecting seats and the two vertical guide sections.
3. The fall protection mechanism of claim 1, wherein the weight structure has a first side rail, a second side rail, a first weight, a second weight, a first fixed pulley, a second fixed pulley, a first pull rope, and a second pull rope, the first side rail and the second side rail are disposed on two sides of the car, one end of the first pull rope is connected to one side of the driving rod, the other end of the first pull rope bypasses the first fixed pulley and is connected to the first weight, one end of the second pull rope is connected to the other side of the driving rod, and the other end of the second pull rope bypasses the second fixed pulley and is connected to the second weight.
4. A fall protection mechanism according to claim 3, wherein the driving rod is further formed at both ends thereof with a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel respectively correspond to the first side rail and the second side rail, and the inner sides of the first side rail and the second side rail are further formed with a first inner stopper and a second inner stopper, respectively, which limit the first rotating wheel and the second rotating wheel.
5. A fall protection mechanism according to claim 3, wherein the first fixed sheave and the second fixed sheave are both rotatably fixed to a vertical rail guiding the car.
6. A fall protection mechanism according to claim 3, wherein the first fixed sheave and the second fixed sheave are rotatably mounted on a wall on the rear side of the car.
7. A fall protection mechanism according to claim 3, wherein the first side rail and the second side rail are each inclined, and the first side rail and the second side rail are positioned closer to the door than to the door.
8. A fall protection high safety protection mechanism according to claim 1, wherein the protective layer is a fall protection net, a fall protection canvas or a fall protection cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901352.2A CN108821053B (en) | 2018-08-09 | 2018-08-09 | Anti-falling high-safety protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810901352.2A CN108821053B (en) | 2018-08-09 | 2018-08-09 | Anti-falling high-safety protection mechanism |
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| Publication Number | Publication Date |
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| CN108821053A CN108821053A (en) | 2018-11-16 |
| CN108821053B true CN108821053B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810901352.2A Active CN108821053B (en) | 2018-08-09 | 2018-08-09 | Anti-falling high-safety protection mechanism |
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|---|---|---|---|---|
| JPS59153213A (en) * | 1983-02-21 | 1984-09-01 | Mitsubishi Electric Corp | Automatic carrier device of unmanned car |
| CN103434908A (en) * | 2013-09-09 | 2013-12-11 | 无锡虹业自动化工程有限公司 | Anti-falling device for freight elevator |
| CN105270947A (en) * | 2014-06-05 | 2016-01-27 | 上海三菱电梯有限公司 | Elevator car door lock with unlocking device, elevator door motor and car door system |
| CN106865378A (en) * | 2017-03-30 | 2017-06-20 | 厦门安利倍特设备有限公司 | For the automatic lifting rescue aid of lift car |
| WO2017125793A1 (en) * | 2016-01-19 | 2017-07-27 | Uab "Barduva" | Mechanical emergency fall brake for elevator |
| CN107720508A (en) * | 2017-03-30 | 2018-02-23 | 福建科大高科发展有限公司 | One kind energy-conservation fall arrest vertical lift |
-
2018
- 2018-08-09 CN CN201810901352.2A patent/CN108821053B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59153213A (en) * | 1983-02-21 | 1984-09-01 | Mitsubishi Electric Corp | Automatic carrier device of unmanned car |
| CN103434908A (en) * | 2013-09-09 | 2013-12-11 | 无锡虹业自动化工程有限公司 | Anti-falling device for freight elevator |
| CN105270947A (en) * | 2014-06-05 | 2016-01-27 | 上海三菱电梯有限公司 | Elevator car door lock with unlocking device, elevator door motor and car door system |
| WO2017125793A1 (en) * | 2016-01-19 | 2017-07-27 | Uab "Barduva" | Mechanical emergency fall brake for elevator |
| CN106865378A (en) * | 2017-03-30 | 2017-06-20 | 厦门安利倍特设备有限公司 | For the automatic lifting rescue aid of lift car |
| CN107720508A (en) * | 2017-03-30 | 2018-02-23 | 福建科大高科发展有限公司 | One kind energy-conservation fall arrest vertical lift |
| CN107973204A (en) * | 2017-03-30 | 2018-05-01 | 福建科大高科发展有限公司 | A kind of energy-saving fall arrest vertical lift |
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| Publication number | Publication date |
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| CN108821053A (en) | 2018-11-16 |
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Effective date of registration: 20231012 Address after: 250000 Lixia District, Jinan City, Shandong Province, 3366 Jingshi Road (Linjiazhuang) Applicant after: Sinochem Transportation Construction Group Co.,Ltd. Applicant after: Guangxi Rongwu Expressway Co.,Ltd. Address before: 362000 original electrical engineering office, 1st floor, old electromechanical office building, No.331, Xinmen street, Licheng District, Quanzhou City, Fujian Province Applicant before: QUANZHOU LICHENG YUNLI PROTECTIVE EQUIPMENT Co.,Ltd. |
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