CN214935160U - Escape device at bottom of double-fork arm - Google Patents
Escape device at bottom of double-fork arm Download PDFInfo
- Publication number
- CN214935160U CN214935160U CN202120955556.1U CN202120955556U CN214935160U CN 214935160 U CN214935160 U CN 214935160U CN 202120955556 U CN202120955556 U CN 202120955556U CN 214935160 U CN214935160 U CN 214935160U
- Authority
- CN
- China
- Prior art keywords
- hinged
- escape
- car
- contour
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a two fork arm bottom escape device. Comprises a car floor structure, wherein an escape opening is formed in the car floor structure, and an escape door structure is arranged at the escape opening; a contour limiting device which can be overturned is connected below the car floor structure, and a locking device which can lock and connect or release the contour limiting device and the car floor structure is connected on the contour limiting device; the contour limiting device comprises a contour bottom plate and a hinged roll-over stand, and two groups of oppositely arranged fork-shaped telescopic units are connected between the contour bottom plate and the hinged roll-over stand; the car platform structure also comprises two groups of hinged connecting plates which are oppositely arranged and fixedly connected with the end part of the car platform structure, and the hinged turnover frame is hinged with the hinged connecting plates; one end of the upper part of the fork-shaped telescopic unit is hinged with the hinged connecting plate, and two hinged points on the hinged connecting plate are arranged in a staggered mode; the fork-shaped telescopic unit is characterized by further comprising a contour limit switch in collision fit with the fork-shaped telescopic unit. The utility model discloses make things convenient for the staff to climb the platform of next-level through the cat ladder through the mouth of fleing, structural design is reasonable, and the security is strong.
Description
Technical Field
The utility model belongs to the technical field of wind-powered electricity generation facility, especially, relate to a two fork arm bottom escape device.
Background
Wind energy is taken as a clean renewable energy source, more and more receives attention and is extremely huge in all countries in the world, and wind power generation is taken as one of the current novel energy industry, and the scale of development is rapidly advanced due to the advantages of environmental protection and energy conservation.
Wind power generation refers to converting kinetic energy of wind into electric energy. The devices required for wind power generation are called wind generating sets. The wind generating set can be divided into three parts, namely a wind wheel (comprising a tail vane), a generator and a tower. The tower is the framework that supports the wind wheel, tail rudder and generator. It is generally built relatively high in order to obtain a large and uniform wind power, yet with sufficient strength. The tower lifter (also called climbing equipment) is a special lifter which is arranged in the tower of the wind turbine, sends working personnel, tools and materials to an upper platform or a cabin and can be parked at any position in the tower at any time for overhauling and maintaining. The tower barrel elevator is similar to an elevator, a driving machine and a steel cable are adopted to drive the car to move up and down, a guide mechanism is matched to guarantee the stability of the car during lifting, and a safety mechanism is matched to carry out emergency braking under dangerous conditions to guarantee safety.
In the prior art, in order to realize the function of lower limit and avoid the danger of bottom rushing, a lower contour limiting device is required to be arranged at the bottom of the lifting car, the lower contour limiting device comprises a lower contour limiting plate, and the lower contour limiting plate and a car bottom plate are connected by adopting crossed connecting rods. In order to ensure the life safety of workers and facilitate the workers to escape in time, an escape door is required to be arranged on the lifting car body, the escape door is generally arranged on the side wall of the car or the bottom of the car, and in emergency, the workers can climb to a next-stage platform along the ladder stand through the escape door; however, the escape door is limited by the lower contour limiting device, and workers cannot escape quickly and smoothly through the escape door at the bottom of the car, so that the safety risk of the workers is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-fork arm bottom escape device with reasonable structural design and strong safety for solving the technical problems existing in the prior art.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a double-fork-arm bottom escape device comprises a car bottom plate structure, wherein an escape opening is formed in the car bottom plate structure, and an escape door structure hinged with the car bottom plate structure is arranged at the escape opening; a contour limiting device capable of overturning is connected below the car floor structure, and a locking device capable of locking and connecting or releasing the car floor structure and the contour limiting device is connected on the contour limiting device; the contour limiting device comprises a contour bottom plate and a hinged turning frame which are oppositely arranged, and two groups of fork-shaped telescopic units which are oppositely arranged are connected between the contour bottom plate and the hinged turning frame; the car platform structure also comprises two groups of hinged connecting plates which are oppositely arranged and fixedly connected with the end part of the car platform structure, and the hinged turnover frame is hinged with the hinged connecting plates; one end of the upper part of the fork-shaped telescopic unit is hinged with the hinged connecting plate, and two hinged points on the hinged connecting plate are arranged in a staggered mode; the fork-shaped telescopic unit is characterized by further comprising a contour limit switch in collision fit with the fork-shaped telescopic unit.
The utility model has the advantages that: the utility model provides a double-fork arm bottom escape device, which is characterized in that an escape opening is arranged on a car bottom plate structure, so that workers can escape in an emergency; the contour limiting device is connected to the car floor structure, so that the lower limiting function can be realized, and the danger of bottom punching is avoided; because the contour limiting device can be overturned and is provided with the locking device on the contour limiting device, the worker can remove the locking connection between the car bottom plate structure and the contour limiting device under emergency, and push the contour limiting device to overturn and leave the escape opening, the worker can climb to the platform of the next level along the ladder stand through the escape opening, and the safety of the equipment is improved.
Preferably: the fork-shaped telescopic unit comprises an outer hinged arm and an inner hinged arm which are hinged with each other in the middle, the upper end of the outer hinged arm is hinged with the hinged connecting plate, the lower end of the outer hinged arm is connected with the contour bottom plate in a sliding manner, the upper end of the inner hinged arm is connected with the hinged turning frame in a sliding manner, and the lower end of the inner hinged arm is hinged with the contour bottom plate; the two groups of outer articulated arms are connected into a whole through a connecting rod, and the two groups of inner articulated arms are connected into a whole through a connecting rod.
Preferably: the locking device comprises a locking seat fixedly connected with the hinged roll-over stand, a spring connecting rod and a hook rod which are arranged in parallel are fixedly connected to the locking seat, a locking hook is rotatably connected to the hook rod, one end of the locking hook is in a hook shape, the other end of the locking hook is connected with a pulling rod, and an extension spring is connected between the pulling rod and the spring connecting rod.
Preferably: the car bottom plate structure comprises a car bottom plate hinged with the escape door structure, and a plurality of groups of bottom plate supporting columns are fixedly connected to the bottom surface of the car bottom plate; the bottom surface of the car bottom plate is connected with a locking rod matched with the hook-shaped end of the locking hook; the car bottom plate clamping device further comprises a clamping seat connected to the car bottom plate, and a clamping pad is clamped to the clamping seat.
Preferably: the escape door structure comprises an escape door plate hinged with the car bottom plate, and the bottom of the escape door plate is fixedly connected with a clamping column matched with a clamping pad in a clamping manner.
Preferably: the bottom of the car floor structure is connected with a limiting support piece used for limiting the outline limiting device.
Preferably: the bottom of the car floor structure is connected with an escape limit switch, and the hinged turnover frame is connected with an escape limit touch panel matched with the escape limit switch.
Preferably: the car bottom plate structure further comprises guide rollers rotatably connected at the edges of the car bottom plate, and limiting rods are arranged on the outer sides of the guide rollers.
Drawings
Fig. 1 is a schematic perspective view of the present invention, from above;
FIG. 2 is a schematic perspective view of a car floor structure according to the present invention, showing a lower view;
FIG. 3 is a schematic perspective view of the structure of the escape door of the present invention, showing a lower view angle;
fig. 4 is a schematic perspective view of the contour limiting device of the present invention;
fig. 5 is a schematic perspective view of a locking device according to the present invention;
fig. 6 is a schematic view of the three-dimensional structure of the present invention, the lower view angle.
In the figure: 1. a car floor structure; 1-1, a car floor; 1-2, a bottom plate strut; 1-3, a locking rod; 1-4, clamping the pad; 1-5, clamping seat; 1-6, guide rollers; 2. an escape door structure; 2-1, escape door panels; 2-2, clamping columns; 3. a spacing support member; 4. a locking device; 4-1, a locking seat; 4-2, a spring connecting rod; 4-3, an extension spring; 4-4, pulling the rod; 4-5, a hook rod; 4-6, locking the hook; 5. a contour limiting device; 5-1, a contour bottom plate; 5-2, an outer articulated arm; 5-3, an inner articulated arm; 5-4, hinging a connecting plate; 5-5, sliding connection plates; 5-6, a contour limit switch; 5-7, hinging a turnover frame; 6. an escape limit switch; 7. escape limit touch panel.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:
referring to fig. 1, the double-fork-arm bottom escape device of the present invention includes a car floor structure 1, an escape opening is formed in the car floor structure 1, and an escape door structure 2 hinged to the car floor structure 1 is disposed at the escape opening.
Referring to fig. 2 further, in the present embodiment, the car floor structure 1 includes a car floor 1-1 hinged to the escape door structure 2, and a plurality of groups of floor pillars 1-2 are fixed to the bottom surface of the car floor 1-1; the car floor structure 1 further comprises a clamping seat 1-5 connected to the car floor 1-1, and a clamping pad 1-4 is clamped to the clamping seat 1-5, wherein in this embodiment, the clamping pad 1-4 is made of rubber. The car bottom plate structure 1 further comprises guide rollers 1-6 which are rotatably connected with the edges of the car bottom plate 1-1, and limiting rods are arranged on the outer sides of the guide rollers 1-6.
As shown in fig. 3, the escape door structure 2 includes an escape door panel 2-1 hinged to a car bottom plate 1-1, and a fastening column 2-2 fastened to a fastening pad 1-4 is fixed to the bottom of the escape door panel 2-1. The end part of the clamping column 2-2 is in a ball head shape, and the bottom of the escape door plate 2-1 is connected with a plurality of groups of rib plates which are arranged in parallel.
As shown in fig. 1, a contour limiting device 5 capable of overturning is connected below a car floor structure 1, and further referring to fig. 4, in the present embodiment, the contour limiting device 5 comprises a contour floor 5-1 and a hinged roll-over stand 5-7 which are oppositely arranged, and two sets of fork-shaped telescopic units which are oppositely arranged are connected between the contour floor 5-1 and the hinged roll-over stand 5-7; the car platform structure also comprises two groups of hinged connecting plates 5-4 which are oppositely arranged and fixedly connected with the end part of the car floor plate structure 1, and the hinged turning frames 5-7 are hinged with the hinged connecting plates 5-4. The outline bottom plate 5-1 is provided with a notch for a plurality of groups of bottom plate pillars 1-2 to penetrate through.
One end of the upper part of the fork-shaped telescopic unit is hinged with a hinged connecting plate 5-4, and two hinged points on the hinged connecting plate 5-4 are arranged in a staggered mode; specifically, the hinged point of the hinged roll-over stand 5-7 and the hinged connecting plate 5-4 is positioned at the upper part of the hinged connecting plate 5-4, and the hinged point of the forked telescopic unit and the hinged connecting plate 5-4 is positioned at the lower part of the hinged connecting plate 5-4.
The fork-shaped telescopic unit comprises an outer hinged arm 5-2 and an inner hinged arm 5-3 which are hinged with each other in the middle, the upper end of the outer hinged arm 5-2 is hinged with a hinged connecting plate 5-4, the lower end of the outer hinged arm is connected with a contour bottom plate 5-1 in a sliding mode, specifically, a transversely extending strip-shaped hole is formed in the contour bottom plate 5-1, and the lower end of the outer hinged arm 5-2 is connected with the contour bottom plate 5-1 in a sliding mode through a screw penetrating through the strip-shaped hole. Meanwhile, the upper end of the inner articulated arm 5-3 is connected with the articulated roll-over stand 5-7 in a sliding way, and the lower end is articulated with the contour bottom plate 5-1; specifically, two groups of sliding connecting plates 5-5 which are oppositely arranged are fixedly connected to a hinged turnover frame 5-7, and the two groups of sliding connecting plates 5-5 are positioned far away from the hinged connecting plates 5-4; a strip-shaped hole extending transversely is formed in the sliding connection plate 5-5, and the upper end of the inner articulated arm 5-3 is connected with the sliding connection plate 5-5 in a sliding mode through a screw penetrating through the strip-shaped hole. The two groups of outer articulated arms 5-2 are connected into a whole through a connecting rod, and the two groups of inner articulated arms 5-3 are connected into a whole through a connecting rod.
Further referring to fig. 1 and 6, the bottom of the car floor structure 1 is connected with an escape limit switch 6, and the hinged turning frames 5-7 are connected with escape limit contact plates 7 matched with the escape limit switch 6.
The contour limiting device 5 further comprises a contour limiting switch 5-6 in collision fit with the Y-shaped telescopic unit, a mounting plate provided with a strip-shaped hole is fixedly connected to the hinged turnover frame 5-7, the contour limiting switch 5-6 is connected with the mounting plate through a screw penetrating through the strip-shaped hole, the contour limiting switch 5-6 is a contact switch, and after the contour limiting switch 5-6 is in collision fit with the Y-shaped telescopic unit, a safety lock on the elevator can be triggered to start, so that the elevator stops moving downwards, and the bottom-punching phenomenon is avoided.
As shown in fig. 1, a lock device 4 that can lock and release the car floor structure 1 and the contour stopper 5 is connected to the contour stopper 5. The bottom surface of the car bottom plate 1-1 is connected with a locking rod 1-3 hooked and connected with a locking device 4. After the escape door structure 2 is opened by a worker, the locking device 4 can be manually operated to release the locking connection between the lower contour limiting device 1 and the car floor structure 2, then the hinged turning frames 5-7 are pushed, so that the hinged turning frames 5-7 can turn over around the hinged points of the hinged turning frames and the hinged connecting plates 5-4, the forked telescopic units can be automatically compressed in the turning process of the hinged turning frames 5-7, and after the contour limiting device 5 turns over to a preset position, the worker can urgently avoid danger through the escape door, and the safety of equipment is improved.
Further referring to fig. 5, in the present embodiment, the locking device 4 comprises a locking seat 4-1 fixedly connected to the hinged roll-over stand 5-7, a spring link 4-2 and a hook rod 4-5 are fixedly connected to the locking seat 4-1, and the spring link 4-2 and the hook rod 4-5 are respectively disposed at two ends of the locking seat 4-1. The hook rod 4-5 is rotatably connected with a locking hook 4-6, the hook rod 4-5 is arranged in a through hole formed in the middle of the locking hook 4-6 in a penetrating mode, nuts respectively arranged on two sides of the locking hook 4-6 are screwed on the hook rod 4-5, and the locking hook 4-6 can be limited by the two groups of nuts so as to be prevented from moving along the axial direction of the hook rod 4-5. In the embodiment, one end of the locking hook 4-6 is hook-shaped, the other end is connected with a pulling rod 4-4, and an extension spring 4-3 is connected between the pulling rod 4-4 and the spring connecting rod 4-2. The end part of the pulling rod 4-4 extends to an escape opening formed in the car bottom plate 1-1, so that a worker can conveniently operate the locking device 4. As shown in FIG. 5, the bottom of the locking seat 4-1 is stepped, and when the hook-shaped end of the locking hook 4-6 is hooked and matched with the locking rod 1-3, the pulling rod 4-4 is tightly contacted with the boundary of the step part of the locking seat 4-1 under the action of the extension spring 4-3. When the locking connection between the car floor structure 1 and the contour limiting device 5 needs to be released, a worker only needs to manually pull the pulling rod 4-4 to enable the locking hook 4-6 to turn over around the hook rod 8-6, and then the hook-shaped end part of the locking hook 4-6 is released from being matched with the locking rod 1-3.
As shown in fig. 1, a limit support member 3 for limiting a contour limiting device 5 is connected to the bottom of a car floor structure 1. When the car floor structure 1 is connected with the contour limiting device 5 in a locking mode, the limiting support piece 3 is in abutting contact with the contour limiting device 5.
The working principle is as follows:
in the actual working process, when an accident occurs, the safety lock of the elevator is started, so that the elevator is in emergency stop operation in the vertical direction, at the moment, a worker can climb to a platform at the next stage along a ladder through an escape opening formed in the car floor structure 1, namely, the escape door panel 2-1 is opened, the pulling rod 4-4 is manually pulled, so that the locking hook 4-6 is turned around the hook rod 4-5, the hooking matching between the hook-shaped end part of the locking hook 4-6 and the locking rod 1-3 is released, the locking connection between the car floor structure 1 and the contour limiting device 5 is further released, at the moment, the hinged turning frame 5-7 is only required to be pushed, so that the hinged turning frame 5-7 is turned around the hinged point, the fork-shaped unit and the contour floor 5-1 are driven to be synchronously turned, and the contour limiting device 5 avoids opening the escape opening formed in the car floor structure 1, the emergency escape is convenient for workers to escape; the lower fork structure is automatically compressed when the hinged roll-over stand 5-7 is in the process of turning over.
Claims (8)
1. A double-fork arm bottom escape device is characterized in that: the escape door comprises a car bottom plate structure (1), wherein an escape opening is formed in the car bottom plate structure (1), and an escape door structure (2) hinged with the car bottom plate structure (1) is arranged at the escape opening; a contour limiting device (5) capable of being turned is connected below the car floor structure (1), and a locking device (4) capable of locking and connecting or releasing the car floor structure (1) and the contour limiting device (5) is connected on the contour limiting device (5);
the contour limiting device (5) comprises a contour bottom plate (5-1) and a hinged roll-over stand (5-7) which are oppositely arranged, and two groups of fork-shaped telescopic units which are oppositely arranged are connected between the contour bottom plate (5-1) and the hinged roll-over stand (5-7); the car platform structure also comprises two groups of hinged connecting plates (5-4) which are oppositely arranged and fixedly connected with the end part of the car floor plate structure (1), and the hinged turning frames (5-7) are hinged with the hinged connecting plates (5-4); one end of the upper part of the fork-shaped telescopic unit is hinged with a hinged connecting plate (5-4), and two hinged points on the hinged connecting plate (5-4) are arranged in a staggered way; and the profile limit switch (5-6) is in collision fit with the fork-shaped telescopic unit.
2. The dual wishbone bottom escape device of claim 1, wherein: the fork-shaped telescopic unit comprises an outer hinged arm (5-2) and an inner hinged arm (5-3) which are hinged with each other in the middle, the upper end of the outer hinged arm (5-2) is hinged with a hinged connecting plate (5-4), the lower end of the outer hinged arm is connected with the contour bottom plate (5-1) in a sliding manner, the upper end of the inner hinged arm (5-3) is connected with a hinged turning frame (5-7) in a sliding manner, and the lower end of the inner hinged arm is hinged with the contour bottom plate (5-1); the two groups of outer articulated arms (5-2) are connected into a whole through a connecting rod, and the two groups of inner articulated arms (5-3) are connected into a whole through a connecting rod.
3. The dual wishbone bottom escape device of claim 1, wherein: the locking device (4) comprises a locking seat (4-1) fixedly connected with a hinged roll-over stand (5-7), a spring connecting rod (4-2) and a hook rod (4-5) which are arranged in parallel are fixedly connected to the locking seat (4-1), a locking hook (4-6) is rotatably connected to the hook rod (4-5), one end of the locking hook (4-6) is in a hook shape, the other end of the locking hook is connected with a pulling rod (4-4), and a stretching spring (4-3) is connected between the pulling rod (4-4) and the spring connecting rod (4-2).
4. The dual wishbone bottom escape device of claim 3, wherein: the car bottom plate structure (1) comprises a car bottom plate (1-1) hinged with the escape door structure (2), and a plurality of groups of bottom plate pillars (1-2) are fixedly connected to the bottom surface of the car bottom plate (1-1); the bottom surface of the car bottom plate (1-1) is connected with a locking rod (1-3) matched with the hook-shaped end of the locking hook (4-6); the elevator car floor further comprises a clamping seat (1-5) connected to the car floor (1-1), and a clamping pad (1-4) is clamped to the clamping seat (1-5).
5. The dual wishbone bottom escape device of claim 4, wherein: the escape door structure (2) comprises an escape door plate (2-1) hinged with a car bottom plate (1-1), and a clamping column (2-2) in clamping fit with a clamping pad (1-4) is fixedly connected to the bottom of the escape door plate (2-1).
6. The dual wishbone bottom escape device of claim 1, wherein: the bottom of the car floor structure (1) is connected with a limiting support piece (3) used for limiting the outline limiting device (5).
7. The dual wishbone bottom escape device of claim 1, wherein: the bottom of the car floor structure (1) is connected with an escape limit switch (6), and the hinged turning frames (5-7) are connected with escape limit contact plates (7) matched with the escape limit switch (6).
8. The dual wishbone bottom escape device of claim 4, wherein: the car bottom plate structure (1) further comprises guide rollers (1-6) rotatably connected with the edges of the car bottom plate (1-1), and limiting rods are arranged on the outer sides of the guide rollers (1-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120955556.1U CN214935160U (en) | 2021-05-07 | 2021-05-07 | Escape device at bottom of double-fork arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120955556.1U CN214935160U (en) | 2021-05-07 | 2021-05-07 | Escape device at bottom of double-fork arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214935160U true CN214935160U (en) | 2021-11-30 |
Family
ID=79062655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120955556.1U Active CN214935160U (en) | 2021-05-07 | 2021-05-07 | Escape device at bottom of double-fork arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214935160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321318A (en) * | 2022-09-02 | 2022-11-11 | 江西维毅机电设备有限公司 | Steel construction integration escape device for elevator |
-
2021
- 2021-05-07 CN CN202120955556.1U patent/CN214935160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321318A (en) * | 2022-09-02 | 2022-11-11 | 江西维毅机电设备有限公司 | Steel construction integration escape device for elevator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214935160U (en) | Escape device at bottom of double-fork arm | |
| CN114017272A (en) | Suspended ceiling extension type multifunctional wind turbine cabin cover and working method thereof | |
| CN214935159U (en) | Vertical lifting climbing equipment for wind power tower | |
| CN108946542A (en) | A kind of small gun carriage and its construction method | |
| CN216332385U (en) | Cross locking type robot for climbing telegraph pole | |
| CN116621016A (en) | A balanced hoist that is used for automatic longeron of new energy automobile back to compress tightly | |
| CN113982866A (en) | Side-opening functional wind power generator cabin cover and working method thereof | |
| CN210886924U (en) | Maintenance platform in retractable double-cable-plane cable-stayed bridge tower stay cable area | |
| CN202755636U (en) | Anti-dropping suspension device for elevation type scaffold | |
| CN211004354U (en) | Movable hydraulic platform truck | |
| CN210551103U (en) | Toolbox that transformer operation safety maintenance was used | |
| CN211770014U (en) | Lifting frame for automobile maintenance | |
| CN209740630U (en) | Intelligent detection system for hanging basket anti-falling device | |
| CN210002935U (en) | safety protection shed capable of synchronously lifting along with creeping formwork | |
| CN218708815U (en) | Lifting pulley device suitable for tower climbing and fixing | |
| CN106044592A (en) | Tower crane climbing structure and tower crane for super high-rise building | |
| CN213384287U (en) | Loading and unloading transport vehicle | |
| CN110528953A (en) | A kind of communications tower of anti-climbing solar energy | |
| CN215004236U (en) | A test jig for safety lock load test | |
| CN110835073A (en) | Device is taken advantage of in offshore wind power plant | |
| CN216421160U (en) | Long-arm electric hammer | |
| CN111217297A (en) | Intelligent detection system for hanging basket anti-falling device | |
| CN213623173U (en) | Platform cover plate opening and closing device of fan tower cylinder | |
| CN113815880B (en) | Power suspension rescue platform for distress pilot | |
| CN214569940U (en) | Contour limiting protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300000 No. 20, Hongxing Road, cuihuangkou Town, Wuqing District, Tianjin Patentee after: Cooper new energy Co.,Ltd. Address before: 300000 102-8, 56 Laiyu Road, huanghuadian Town, Wuqing District, Tianjin Patentee before: COOPER (TIANJIN) TECHNOLOGY CO.,LTD. |