CN215287757U - Hoisting apparatus for capital construction and power transformation construction and hoisting mechanism and protection mechanism thereof - Google Patents
Hoisting apparatus for capital construction and power transformation construction and hoisting mechanism and protection mechanism thereof Download PDFInfo
- Publication number
- CN215287757U CN215287757U CN202121854128.6U CN202121854128U CN215287757U CN 215287757 U CN215287757 U CN 215287757U CN 202121854128 U CN202121854128 U CN 202121854128U CN 215287757 U CN215287757 U CN 215287757U
- Authority
- CN
- China
- Prior art keywords
- lifting
- hoisting
- fixedly connected
- locking
- 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.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 60
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 230000009466 transformation Effects 0.000 title claims description 15
- 230000001360 synchronised effect Effects 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims 2
- 230000001681 protective effect Effects 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002633 protecting effect Effects 0.000 description 3
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model relates to a hoisting accessory for capital construction transformer construction and hoisting mechanism and protection mechanism thereof relates to the technical field of capital construction transformer, the hoisting accessory comprises a hoisting seat, the top end of the hoisting seat is fixedly provided with a hoisting frame, the bottom side of one end of the hoisting frame is provided with the hoisting mechanism, after hoisting the transformer equipment to a certain height, the protection plate is driven to move to the horizontal plane where the bottom end of the hoisted equipment is located through a supporting cylinder, then a servo motor is started to drive the protection plate to rotate, thereby driving the protection plate to move to the bottom end of the hoisting equipment, thereby carrying out synchronous protection, after the adjustment of the protection plate is completed, a telescopic cylinder is started to drive a locking column to move towards the direction of the locking hole until the locking column passes through the locking hole to be in complete contact with the locking seat, thereby completing the locking of the synchronous column, thereby completing the locking of the protection plate, having the advantages of synchronous protection, the problem of current protective effect general is solved.
Description
Technical Field
The utility model relates to a hoisting accessory is used in capital construction transformer construction and hoisting accessory and protection machanism relate to capital construction transformer technical field.
Background
The power transmission and transformation equipment is of various types, and mainly comprises power transmission, transformation, power distribution, various special-purpose electrical equipment and the like. When the infrastructure power transformation is constructed, the related hoisting devices are needed to hoist the power transmission and transformation equipment.
And most hoisting accessory for infrastructure substation construction at present does not set up relevant synchronous protection machanism many, and this protective effect when will influencing lifts by crane leads to protective effect general, has certain limitation, and is visible, needs a hoisting accessory for infrastructure substation construction and hoisting accessory and protection machanism thereof to solve the above-mentioned technical problem urgently.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a hoisting accessory and protection machanism for capital construction transformer construction possesses advantages such as synchronous protection, has solved the general problem of current protecting effect.
In order to achieve the above object, the utility model provides a following technical scheme:
the lifting device for capital construction and power transformation construction comprises a lifting seat, wherein a lifting frame is fixedly mounted at the top end of the lifting seat, a lifting mechanism is arranged on the bottom side of one end of the lifting frame, and a protection mechanism is arranged on the side surface of the lifting mechanism.
Preferably, the hoisting mechanism includes: the lifting device comprises a movable seat, an adjusting cylinder, a lifting plate and a grabbing mechanism, wherein the movable seat is connected with the lifting plate in a sliding mode, the side face of the movable seat is fixedly connected with the extending end of the adjusting cylinder, and the adjusting cylinder is fixedly connected with the lifting plate.
Preferably, the bottom fixed mounting of sliding seat has the jack-up cylinder, the end fixedly connected with that stretches out of jack-up cylinder plays the hanger plate, the bottom of playing the hanger plate is provided with snatchs the mechanism.
The adjusting cylinder is used for driving the movable seat to move horizontally, so that the lifting cylinder which drives the bottom end of the movable seat moves horizontally, the lifting cylinder is used for driving the grabbing mechanism at the bottom end of the lifting plate to move in the vertical direction, and the grabbing mechanism is used for grabbing the power transformation equipment.
Preferably, the guard mechanism comprises: the supporting cylinder and the lifting plate are fixedly connected, one end of the supporting cylinder, extending out of the end, of the supporting cylinder, is fixedly connected with the synchronizing plate, the servo motor is fixedly mounted at the bottom of the other end of the synchronizing plate, one end of the output end of the servo motor is fixedly connected with the synchronizing column, and the other end of the synchronizing column penetrates through the top side wall of the lifting plate and the fixedly connected with protective plate.
The support cylinder is used for driving the synchronous plate to move in the vertical direction, so that the servo motor is driven to move, the protection plate fixedly connected with the bottom end of the synchronous column is driven to move, the position of the protection plate is adjusted, the servo motor is used for driving the protection plate to rotate, and the position of the protection plate is further adjusted.
Preferably, a locking hole is formed in the side face of the synchronous column, a locking column is arranged on the side face of the locking hole, a telescopic cylinder is fixedly connected to one end of the locking column, and the telescopic cylinder is fixedly connected with the lifting plate.
Preferably, one side of the synchronous column, which is far away from the locking column, is provided with a locking seat, and the locking seat is fixedly connected with the hoisting plate.
The utility model provides a hoisting accessory's hoisting mechanism for capital construction transformer construction, includes: the device comprises a movable seat, an adjusting cylinder, a lifting plate and a grabbing mechanism, wherein the movable seat is connected with the lifting frame in a sliding manner, the side surface of the movable seat is fixedly connected with an extending end of the adjusting cylinder, and the adjusting cylinder is fixedly connected with the lifting frame; the bottom fixed mounting of movable seat has the jack-up cylinder, the end fixedly connected with that stretches out of jack-up cylinder plays the hanger plate, the bottom of playing the hanger plate is provided with snatchs the mechanism.
The utility model provides a capital construction becomes electric construction with protection machanism of hoisting accessory, includes: support cylinder, synchronous board, servo motor, synchronous post and guard plate, support cylinder and lift by crane board fixed connection, the end fixedly connected with synchronous board that stretches out of support cylinder, the other end bottom fixed mounting of synchronous board has servo motor, servo motor's the synchronous post of output fixedly connected with, the other end of synchronous post runs through the top lateral wall and the fixedly connected with guard plate of hanger plate, the locking hole has been seted up to synchronous post side, the side of lock post is provided with the lock post, the other end fixedly connected with telescopic cylinder of lock post, telescopic cylinder and lift by crane board fixed connection, one side that the lock post was kept away from to synchronous post is provided with the locking seat, the locking seat with lift by crane board fixed connection.
Compared with the prior art, the utility model provides a hoisting accessory and protection machanism for capital construction transformer construction possesses following beneficial effect:
first, this hoisting accessory and safeguard mechanism are used in capital construction transformer construction, through setting up safeguard mechanism, make and lift by crane substation equipment to the take the altitude after, the user drives the guard plate through the support cylinder and removes to the horizontal plane by the equipment bottom of lifting by crane place department, then start servo motor and drive the guard plate and rotate, thereby it removes to the bottom of the equipment of lifting by crane to drive the guard plate, thereby carry out the protection in step, after the completion is to the adjustment of guard plate, it removes towards the direction of locking hole to start telescopic cylinder drive lock post, pass lock hole and lock seat full contact until the lock post, accomplish the locking to the lock post, thereby accomplish the locking to the guard plate, possess advantages such as synchronous protection, the general problem of current protecting effect has been solved.
Second, this hoisting accessory and protection machanism for capital construction transformer construction through setting up hoisting accessory for when lifting by crane, drive the sliding seat through adjust cylinder and carry out horizontal migration, thereby drive the jack-up cylinder of sliding seat bottom and carry out horizontal migration, the jack-up cylinder is used for driving the mechanism that snatchs of hoisting plate bottom and carries out the ascending removal of vertical side, snatchs the mechanism and is used for snatching substation equipment, with this lift by crane demand under satisfying different situation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the lifting mechanism of the present invention;
FIG. 3 is a schematic view of the protection mechanism of the present invention;
FIG. 4 is a front view of the protection mechanism of the present invention;
fig. 5 is a schematic view of the structure of the locking hole of the present invention.
Wherein: 1. lifting the lifting seat; 2. lifting the hanger; 3. a hoisting mechanism; 301. a movable seat; 302. an adjusting cylinder; 303. a lifting cylinder; 304. lifting the hanger plate; 305. a grabbing mechanism; 4. a protection mechanism; 401. a support cylinder; 402. a synchronization board; 403. a servo motor; 404. a synchronizing column; 405. a protection plate; 406. a locking hole; 407. a locking post; 408. a telescopic cylinder; 409. a locking seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Detailed description of the invention
The following concrete implementation mode of the hoisting device for capital construction and power transformation construction
Referring to fig. 1-5, a lifting device for capital construction and power transformation construction includes a lifting base 1, a lifting frame 2 is fixedly installed on the top end of the lifting base 1, a lifting mechanism 3 is installed on the bottom side of one end of the lifting frame 2, and a protection mechanism 4 is installed on the side surface of the lifting mechanism 3.
Specifically, the hoisting mechanism 3 includes: the lifting device comprises a movable seat 301, an adjusting cylinder 302, a lifting cylinder 303, a lifting plate 304 and a grabbing mechanism 305, wherein the movable seat 301 is in sliding connection with a lifting frame 2, the side surface of the movable seat 301 is fixedly connected with the extending end of the adjusting cylinder 302, and the adjusting cylinder 302 is fixedly connected with the lifting frame 2.
Specifically, a lifting cylinder 303 is fixedly mounted at the bottom end of the movable seat 301, a lifting plate 304 is fixedly connected to the extending end of the lifting cylinder 303, and a grabbing mechanism 305 is arranged at the bottom end of the lifting plate 304.
In the above technical scheme, the adjusting cylinder 302 is used for driving the movable seat 301 to perform horizontal movement, so as to drive the lifting cylinder 303 at the bottom end of the movable seat 301 to perform horizontal movement, the lifting cylinder 303 is used for driving the grabbing mechanism 305 at the bottom end of the lifting plate 304 to perform vertical movement, and the grabbing mechanism 305 is used for grabbing the power transformation equipment.
The gripping mechanism 305 is an existing clamp tong, which is commercially available in a variety of large markets.
Specifically, the guard mechanism 4 includes: support cylinder 401, synchronous board 402, servo motor 403, synchronous post 404 and guard plate 405, support cylinder 401 with lift by crane board 304 fixed connection, support cylinder 401 stretch out the one end of holding fixedly connected with synchronous board 402, the other end bottom fixed mounting of synchronous board 402 has servo motor 403, the one end of synchronous post 404 of output fixedly connected with of servo motor 403, the other end of synchronous post 404 runs through the top lateral wall and the fixedly connected with guard plate 405 of hanger plate 304.
In above-mentioned technical scheme, support cylinder 401 is used for driving synchronous board 402 and carries out the ascending removal of vertical side to drive servo motor 403 and remove, thereby drive synchronous post 404 bottom fixed connection's guard plate 405 and remove, thereby adjust the position of guard plate 405, servo motor 403 is used for driving guard plate 405 and rotates, thereby carries out further adjustment to the position of guard plate 405.
In a normal state, the support cylinder 401 drives the protection plate 405 to move to a position closer to the lifting plate 304, so as to avoid the interference of the protection plate 405 on normal lifting.
Specifically, a locking hole 406 is formed in the side surface of the synchronizing column 404, a locking column 407 is arranged on the side surface of the locking hole 406, a telescopic cylinder 408 is fixedly connected to one end of the locking column 407, and the telescopic cylinder 408 is fixedly connected to the lifting plate 304.
In the above technical solution, the locking holes 406 are adapted to the locking posts 407, the locking holes 406 are through holes, the number of the locking holes 406 is several, and the locking holes are used for being matched with the locking posts 407, so as to meet the locking requirements under different conditions, and the telescopic cylinder 408 is used for driving the locking posts 407 to move, so as to adjust whether the locking posts 407 are in contact with the locking holes 406.
Because the protection plate 405 only has two states, and the locking hole 406 is in a matching state with the locking column 407 in the two states of the protection plate 405, the subsequent locking of the protection plate 405 is facilitated.
Specifically, one side of the synchronization post 404, which is far away from the locking post 407, is provided with a locking seat 409, and the locking seat 409 is fixedly connected with the lifting plate 304.
In the above technical solution, the side surface of the locking seat 409 is also provided with a hole slot adapted to the locking post 407, so as to ensure the stability of the locking post 407 during locking.
When protecting, support cylinder 401 drives protection plate 405 and removes to the horizontal plane of being lifted by the equipment bottom place of lifting by crane, then start servo motor 403 and drive protection plate 405 and rotate, thereby drive protection plate 405 and remove to the bottom of lifting by crane equipment, thereby synchronous protection, after the adjustment to protection plate 405 is accomplished, start telescopic cylinder 408 and drive locking post 407 and remove towards the direction of locking hole 406, pass locking hole 406 and locking seat 409 full contact until locking post 407, accomplish the locking to synchronous post 404, thereby the completion is to the locking of protection plate 405.
When using, the user adjusts the sliding seat 301 to suitable position through adjust cylinder 302 earlier, then drives through jack-up cylinder 303 again and snatchs mechanism 305 and remove to the substation equipment department that needs lifted by crane, snatchs substation equipment through snatching mechanism 305 afterwards, then can drive substation equipment through jack-up cylinder 303 and remove, realizes lifting by crane substation equipment.
After lifting substation equipment to a take the altitude, the user drives through supporting cylinder 401 that guard plate 405 removes to the horizontal plane of being lifted by the position of equipment bottom, then start servo motor 403 and drive guard plate 405 and rotate, thereby drive guard plate 405 and remove to the bottom of lifting by crane equipment, thereby carry out the protection in step, after the adjustment to guard plate 405, start telescopic cylinder 408 and drive locking post 407 and remove towards the direction of locking hole 406, pass locking hole 406 and locking seat 409 full contact until locking post 407, the completion is to the locking of synchronization post 404, thereby the completion is to the locking of guard plate 405.
Detailed description of the invention
The following is a specific implementation mode of a hoisting mechanism of a hoisting device for infrastructure substation construction, and the hoisting mechanism can be implemented independently and can also be used as a key mechanism of the hoisting device for infrastructure substation construction disclosed in the specific implementation mode.
The utility model provides a hoisting mechanism of hoisting accessory for capital construction transformer construction under this embodiment includes: the lifting device comprises a movable seat 301, an adjusting cylinder 302, a lifting cylinder 303, a lifting plate 304 and a grabbing mechanism 305, wherein the movable seat 301 is in sliding connection with a lifting frame 2, the side surface of the movable seat 301 is fixedly connected with the extending end of the adjusting cylinder 302, and the adjusting cylinder 302 is fixedly connected with the lifting frame 2; the bottom end of the movable seat 301 is fixedly provided with a lifting cylinder 303, the extending end of the lifting cylinder 303 is fixedly connected with a lifting plate 304, and the bottom end of the lifting plate 304 is provided with a grabbing mechanism 305.
Detailed description of the invention
The following is a concrete implementation mode of a protection mechanism of a hoisting device for capital construction and power transformation construction, and the protection mechanism can be implemented independently and can also be used as a key mechanism of the hoisting device for the capital construction and power transformation construction disclosed in the concrete implementation mode.
The protection machanism 4 of hoisting accessory for capital construction transformer construction under this embodiment includes: the supporting cylinder 401, synchronous board 402, servo motor 403, synchronous post 404 and guard plate 405, supporting cylinder 401 and lifting board 304 fixed connection, the one end of the synchronous board 402 of end fixedly connected with that stretches out of supporting cylinder 401, the other end bottom fixed mounting of synchronous board 402 has servo motor 403, the one end of the synchronous post 404 of output fixedly connected with of servo motor 403, the other end of synchronous post 404 runs through the top lateral wall of lifting board 304 and fixedly connected with guard plate 405, locking hole 406 has been seted up to synchronous post 404 side, the side of locking hole 406 is provided with locking post 407, the one end fixedly connected with telescopic cylinder 408 of locking post 407, telescopic cylinder 408 and lifting board 304 fixed connection, the one side that locking post 407 was kept away from to synchronous post 404 is provided with locking seat 409, locking seat 409 and lifting board 304 fixed connection.
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 (5)
1. The utility model provides a hoisting accessory is used in capital construction transformer construction, includes lifting seat (1), its characterized in that: a lifting frame (2) is fixedly mounted at the top end of the lifting seat (1), a lifting mechanism (3) is arranged at the bottom side of one end of the lifting frame (2), and a protection mechanism (4) is arranged on the side surface of the lifting mechanism (3);
the hoisting mechanism (3) comprises: the lifting device comprises a movable seat (301), an adjusting cylinder (302), a lifting cylinder (303), a lifting plate (304) and a grabbing mechanism (305), wherein the movable seat (301) is in sliding connection with a lifting frame (2), the side surface of the movable seat (301) is fixedly connected with the extending end of the adjusting cylinder (302), and the adjusting cylinder (302) is fixedly connected with the lifting frame (2); a lifting cylinder (303) is fixedly installed at the bottom end of the movable seat (301), a lifting plate (304) is fixedly connected to the extending end of the lifting cylinder (303), and a grabbing mechanism (305) is arranged at the bottom end of the lifting plate (304);
the guard mechanism (4) comprises: support cylinder (401), synchronous board (402), servo motor (403), synchronous post (404) and guard plate (405), support cylinder (401) and have hanger plate (304) fixed connection, the one end of stretching out end fixedly connected with synchronous board (402) of support cylinder (401), the other end bottom fixed mounting of synchronous board (402) has servo motor (403), the one end of the synchronous post (404) of output fixedly connected with of servo motor (403), the other end of synchronous post (404) runs through the top side wall and the fixedly connected with guard plate (405) of hanger plate (304).
2. The hoisting device for capital construction and transformation construction according to claim 1, wherein: the side surface of the synchronous column (404) is provided with a locking hole (406), the side surface of the locking hole (406) is provided with a locking column (407), one end of the locking column (407) is fixedly connected with a telescopic cylinder (408), and the telescopic cylinder (408) is fixedly connected with the lifting plate (304).
3. The hoisting device for capital construction and transformation construction according to claim 2, wherein: one side of the synchronous column (404), which is far away from the locking column (407), is provided with a locking seat (409), and the locking seat (409) is fixedly connected with the lifting plate (304).
4. The utility model provides a hoisting accessory's hoisting mechanism for capital construction transformer construction which characterized in that: the method comprises the following steps: the lifting device comprises a movable seat (301), an adjusting cylinder (302), a lifting cylinder (303), a lifting plate (304) and a grabbing mechanism (305), wherein the movable seat (301) is in sliding connection with a lifting frame (2), the side surface of the movable seat (301) is fixedly connected with the extending end of the adjusting cylinder (302), and the adjusting cylinder (302) is fixedly connected with the lifting frame (2); the bottom end of the movable seat (301) is fixedly provided with a hoisting cylinder (303), the extending end of the hoisting cylinder (303) is fixedly connected with a hoisting plate (304), and the bottom end of the hoisting plate (304) is provided with a grabbing mechanism (305).
5. The utility model provides a capital construction becomes electric construction with protection machanism of hoisting accessory which characterized in that: the method comprises the following steps: the lifting plate structure comprises a supporting cylinder (401), a synchronous plate (402), a servo motor (403), a synchronous column (404) and a protection plate (405), wherein the supporting cylinder (401) is fixedly connected with a lifting plate (304), the extending end of the supporting cylinder (401) is fixedly connected with one end of the synchronous plate (402), the servo motor (403) is fixedly installed at the bottom of the other end of the synchronous plate (402), the output end of the servo motor (403) is fixedly connected with one end of the synchronous column (404), the other end of the synchronous column (404) penetrates through the top side wall of the lifting plate (304) and is fixedly connected with the protection plate (405), a locking hole (406) is formed in the side surface of the synchronous column (404), a locking column (407) is arranged on the side surface of the locking hole (406), a telescopic cylinder (408) is fixedly connected with one end of the locking column (407), and the telescopic cylinder (408) is fixedly connected with the lifting plate (304), one side of the synchronous column (404), which is far away from the locking column (407), is provided with a locking seat (409), and the locking seat (409) is fixedly connected with the lifting plate (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121854128.6U CN215287757U (en) | 2021-08-09 | 2021-08-09 | Hoisting apparatus for capital construction and power transformation construction and hoisting mechanism and protection mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121854128.6U CN215287757U (en) | 2021-08-09 | 2021-08-09 | Hoisting apparatus for capital construction and power transformation construction and hoisting mechanism and protection mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215287757U true CN215287757U (en) | 2021-12-24 |
Family
ID=79526807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121854128.6U Expired - Fee Related CN215287757U (en) | 2021-08-09 | 2021-08-09 | Hoisting apparatus for capital construction and power transformation construction and hoisting mechanism and protection mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215287757U (en) |
-
2021
- 2021-08-09 CN CN202121854128.6U patent/CN215287757U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105932112B (en) | Tubular type PECVD graphite boat process point erecting devices | |
| CN215287757U (en) | Hoisting apparatus for capital construction and power transformation construction and hoisting mechanism and protection mechanism thereof | |
| CN114180466A (en) | Hanging bracket for production of powder compact box injection mold and method thereof | |
| CN113104762A (en) | Color steel plate stabilizing clamp for steel structure building construction | |
| CN110834466A (en) | Automatic processing equipment for electronic components | |
| CN209853572U (en) | Boiler installation overhead hoist | |
| CN116865132A (en) | Automatic installation equipment of weak current control cabinet for building construction | |
| CN117185132A (en) | Hoisting equipment and hoisting method for large cast structural member | |
| CN214495629U (en) | Elevator with extend platform | |
| CN214031553U (en) | Subway bogie lifting platform | |
| CN215678667U (en) | Assembly detection mechanism for production of low-voltage high-power three-phase asynchronous motor | |
| CN216154919U (en) | Brick machine is embraced to non-swing line formula of hanging | |
| CN211393590U (en) | Lifting equipment for maintaining mechanical equipment | |
| CN215317202U (en) | Stop device is used in electric block automated production processing | |
| CN221588051U (en) | Lifting platform for building curtain wall detection | |
| CN220745263U (en) | Vertical elevator | |
| CN221408204U (en) | Disconnecting switch overhauling frame | |
| CN211030912U (en) | Automatic turnover device of basin-type insulator pouring mold | |
| CN221051347U (en) | Lifting appliance for lifting bridge | |
| CN217621212U (en) | Mold table standing and overturning device | |
| CN220467409U (en) | High pier slip turns over and combines template hoisting device | |
| CN221253755U (en) | Lifting machine convenient to remove | |
| CN215516332U (en) | Cable trench cover lifting trolley | |
| CN214839539U (en) | Energy-saving supporting equipment for construction of green building engineering | |
| CN218161609U (en) | Liftable cable testing bridge of adjusting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |