CN204024436U - A kind of for power system maintenance insulating ladder - Google Patents
A kind of for power system maintenance insulating ladder Download PDFInfo
- Publication number
- CN204024436U CN204024436U CN201420376401.2U CN201420376401U CN204024436U CN 204024436 U CN204024436 U CN 204024436U CN 201420376401 U CN201420376401 U CN 201420376401U CN 204024436 U CN204024436 U CN 204024436U
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- Prior art keywords
- cleat stanchion
- baffle
- baffle plate
- rotating shaft
- stanchion
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- 238000012423 maintenance Methods 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 claims description 10
- 230000001174 ascending effect Effects 0.000 claims description 6
- 210000003462 vein Anatomy 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model relates to a kind of for power system maintenance insulating ladder, comprise the first cleat stanchion, the second cleat stanchion, the first baffle plate, second baffle, insulating ladder working platform is dressed up by rotating shaft Connecting groups between first baffle plate and second baffle, first cleat stanchion and the second cleat stanchion are equipped with two crosspieces, be provided with at least one safety belt between first cleat stanchion and the second cleat stanchion, the bottom of the first cleat stanchion and the bottom of the second cleat stanchion are all fixedly connected with an Anti-slip cover; Advantage of the present utility model: rotated in rotating shaft by the first baffle plate and second baffle and form working platform, and supported by the first cleat stanchion and the second cleat stanchion, can trample or be sitting on working platform by crosspiece carrying out ascend a height during use and carry out operation, effectively decrease the work degree of operating personnel, by the safety belt be provided with between the first cleat stanchion and the second cleat stanchion effectively avoid ascend a height time load-bearing after topple over, security performance is high, by the setting of Anti-slip cover, effectively raise overall safety factor.
Description
Technical field
The utility model relates to a kind of for power system maintenance insulating ladder.
Background technology
Although have insulating properties in power construction, safety all preferably ladder is used for the daily construction of power department, but length is all long, weight is also heavier, and it is general all more than 2 meters, specify in electric power code, more than the supplementary measures such as necessary construction safety band of two meters of height, also bring necessarily " burden " to constructor, the a lot of power construction of power department all relates to the narrow short basement in space at present simultaneously, corridor, and in public distribution transformer box etc., because insulating ladder is in the market all long, heavier, do not have aly to be adapted at these particular surroundings, operation in particular cases, power construction difficulty is caused to strengthen, engineering time extends, easily cause staff tired, degradation situation under construction quality.
Utility model content
The technical problems to be solved in the utility model can not adapt to the narrower short working environment in space for existing insulating ladder, power construction difficulty is caused to strengthen, engineering time extends, easily cause that staff is tired, degradation situation under construction quality, thus provide a kind of for the narrow short power system maintenance insulating ladder in space.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of for power system maintenance insulating ladder, comprise the first cleat stanchion, second cleat stanchion, be fixedly connected on the first baffle plate on the first cleat stanchion, be fixedly connected on the second baffle on the second cleat stanchion, insulating ladder working platform is dressed up by axis of rotation Connecting groups between described first baffle plate and second baffle, the angle formed after described first baffle plate and second baffle rotate in rotating shaft is 0 ~ 90 °, the gap formed after described first baffle plate and second baffle rotate in rotating shaft is 0 ~ 2mm, the bottom of described first baffle plate is provided with at least one first axle sleeve matched with rotating shaft, the bottom of described second baffle is provided with at least one second axle sleeve matched with rotating shaft, described first axle sleeve and the second axle sleeve interlock and are set in rotating shaft, described first axle sleeve is provided with the first block that restriction first axle sleeve rotates in rotating shaft, described second axle sleeve is provided with the second block that restriction second axle sleeve rotates in rotating shaft, the top of described first cleat stanchion is provided with the first groove, the bottom of described first baffle plate is provided with and first gear sleeve-board is located at first in the first groove connects boss, the top of described second cleat stanchion is provided with the second groove, the bottom of described second baffle is provided with and second baffle is set in second in the second groove connects boss, described first cleat stanchion is provided with at least two groups and connects boss by first and be locked at the first bolt assembly in the first groove, described second cleat stanchion is provided with at least two groups and connects boss by second and be locked at the second bolt assembly in the second groove, described first cleat stanchion and the second cleat stanchion are equipped with two to be convenient to operating personnel and to ascend a height the crosspiece trampled, be provided with between the first cleat stanchion and the second cleat stanchion at least one for preventing from ascending a height time load-bearing after the safety belt of toppling over, the bottom of described first cleat stanchion and the bottom of the second cleat stanchion are all fixedly connected with an Anti-slip cover, the described top of the first baffle plate and the top of second baffle are equipped with a cavity, reeding is equipped with in each described cavity.
Preferably, described reeding is that grid-shaped is separately positioned in cavity, the degree of depth of described cavity is 3 ~ 5mm, the described thickness of the first baffle plate and the thickness of second baffle are 18 ~ 22mm, the top of described reeding overlaps with the horizontal plane of cavity, grid-shaped arranges good antiskid effect, skidproof effects different on horizontal direction and vertical direction can be ensured simultaneously, easy to process, when the degree of depth of cavity is less than 3mm, skidproof effect is poor, security performance is low, when the degree of depth of cavity is greater than 5mm, overall cracking resistance is low, decrease the stressed of working platform, security performance is high, first baffle plate and second baffle are not fragile, when the thickness of the first baffle plate and the thickness of second baffle are less than 18mm, overall poor safety performance, fragile, when the thickness of the first baffle plate and the thickness of second baffle are greater than 22mm, be unfavorable for rotating, the gap formed in the middle part of working platform after assembling is large, security performance is low.
Preferably, described in every root, the longitudinal section of crosspiece is rectangle, described first cleat stanchion and the second cleat stanchion are respectively equipped with the installing hole installed for crosspiece, the two ends of described crosspiece are provided with the cushion matched with installing hole, described in every root, the top of crosspiece is equipped with the anti-slip veins arranged in the horizontal direction, the width of described crosspiece is 2.85 ~ 4.25mm, by cushion, crosspiece is arranged on installing hole, connect reliable, not easily depart from, security performance is high, by the setting of anti-slip veins, effectively raise the frictional force of ascending a height when trampling, avoid the rainy day work time anti-down, when the width of crosspiece is less than 2.85mm, may exist and run into large pressure when trampling, when trampling, the lifting surface area of footwear is little, crosspiece easily breaks, security performance is low, when the width of crosspiece is greater than 4.25mm, overall installation weak effect, use cost is high.
Preferably, the both sides, bottom of described Anti-slip cover are equipped with circular arc chamfering, the top of described Anti-slip cover is all fixedly connected on the first cleat stanchion and the second cleat stanchion by least one rivet, rivet interlacement is reliable, result of use is good, circular arc chamfering is arranged in the both sides, bottom of Anti-slip cover, and swing when avoiding use, stationary performance is high.
Preferably, also comprise handle, one end of described handle is rotatably connected on the first cleat stanchion by bearing pin, the other end of described handle is fixedly connected on the second cleat stanchion by snap close, by the setting of handle, simplifies the workload of carrying, decrease the first cleat stanchion and the second cleat stanchion to the injury of human body, security performance is high, simply, is easy to carry.
Preferably, be provided with at least one group between described first cleat stanchion and the second cleat stanchion and the first cleat stanchion be fixedly connected on magnet on the second cleat stanchion and metal derby, also comprise one for controlling magnet absorption or repel control lever on metal derby, described control lever is fixedly connected on the first cleat stanchion or the second cleat stanchion by bandage, by the cooperation of magnet and metal derby, when avoiding carrying, first cleat stanchion is separated with the second cleat stanchion, and carry effective, structure is simple, control effects is good, simple to operate.
In sum, advantage of the present utility model: rotated in rotating shaft by the first baffle plate and second baffle and form working platform, and supported by the first cleat stanchion and the second cleat stanchion, can trample or be sitting on working platform by crosspiece carrying out ascend a height during use and carry out operation, effectively decrease the work degree of operating personnel, by the safety belt be provided with between the first cleat stanchion and the second cleat stanchion effectively avoid ascend a height time load-bearing after topple over, security performance is high, by the setting of Anti-slip cover, effectively raise overall safety factor, the beneficial effect brought is: 1, solve agriculture and combine regular job in the lower power distribution cabinet of change, the situations such as the insufficient height caused without operating platform during the work such as maintenance, and single ladder can be avoided to block a difficult unlatching, 2, to solve in daily dress table, table case motorcycle in maintenance process and carry the inconvenient situation of insulating ladder, dress table of being more convenient for connects electricity and maintenance, 3, carrying and the power construction of the electric power utensil in the narrow short spaces such as basement, corridor, access to elevators is solved, 4, solve the single ladder used at present, in use must need people and hold up jail, easily to the table case gear jail of operation or can not the problem such as front-operated.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is a kind of sectional view for power system maintenance insulating ladder of the utility model;
Fig. 2 is the structural representation that the utility model first baffle plate, second baffle are installed with rotating shaft respectively.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, a kind of for power system maintenance insulating ladder, comprise the first cleat stanchion 1, second cleat stanchion 2, be fixedly connected on the first baffle plate 3 on the first cleat stanchion 1, be fixedly connected on the second baffle 4 on the second cleat stanchion 2, first cleat stanchion 1 and the second cleat stanchion 2 adopt the specification 3 × 6CM of excellent insulating property to be glass fiber tubing, first baffle plate 3 and second baffle 4 adopt ABS engineering material to make, be rotationally connected by rotating shaft 5 between described first baffle plate 3 and second baffle 4 and be assembled into insulating ladder working platform, the whole height of the working platform after assembling is 998 ~ 1002mm rice, width 355 ~ 365mm, the overall size in working platform face is width 220mm, length is 400mm, the angle formed after described first baffle plate 3 and second baffle 4 rotate in rotating shaft 5 is 0 ~ 90 °, the gap formed after described first baffle plate 3 and second baffle 4 rotate in rotating shaft 5 is 0 ~ 2mm, the bottom of described first baffle plate 3 is provided with at least one first axle sleeve 31 matched with rotating shaft 5, the bottom of described second baffle 4 is provided with at least one second axle sleeve 41 matched with rotating shaft 5, described first axle sleeve 31 and the second axle sleeve 41 interlock and are set in rotating shaft 5, described first axle sleeve 31 is provided with the first block 32 that restriction first axle sleeve 31 rotates in rotating shaft 5, described second axle sleeve 41 is provided with the second block 42 that restriction second axle sleeve 41 rotates in rotating shaft 5, the top of described first cleat stanchion 1 is provided with the first groove 11, the bottom of described first baffle plate 3 is provided with and the first baffle plate 3 is set in first in the first groove 11 connects boss 33, the top of described second cleat stanchion 2 is provided with the second groove 21, the bottom of described second baffle 4 is provided with and second baffle 4 is set in second in the second groove 21 connects boss 43, described first cleat stanchion 1 is provided with at least two groups and connects boss 33 by first and be locked at the first bolt assembly 12 in the first groove 11, described second cleat stanchion 2 is provided with at least two groups and connects boss 43 by second and be locked at the second bolt assembly 22 in the second groove 21, described first cleat stanchion 1 and the second cleat stanchion 2 are equipped with two to be convenient to operating personnel and to ascend a height the crosspiece 6 trampled, be provided with between the first cleat stanchion 1 and the second cleat stanchion 2 at least one for preventing from ascending a height time load-bearing after the safety belt 7 of toppling over, the bottom of described first cleat stanchion 1 and the bottom of the second cleat stanchion 2 are all fixedly connected with an Anti-slip cover 8, the described top of the first baffle plate 3 and the top of second baffle 4 are equipped with a cavity 9, reeding 91 is equipped with in each described cavity 9, described reeding 91 is separately positioned in cavity 9 in grid-shaped, the degree of depth of described cavity 9 is 3 ~ 5mm, the described thickness of the first baffle plate 3 and the thickness of second baffle 4 are 18 ~ 22mm, the top of described reeding 91 overlaps with the horizontal plane of cavity 9, grid-shaped arranges good antiskid effect, skidproof effects different on horizontal direction and vertical direction can be ensured simultaneously, easy to process, when the degree of depth of cavity 9 is less than 3mm, skidproof effect is poor, security performance is low, when the degree of depth of cavity 9 is greater than 5mm, overall cracking resistance is low, decrease the stressed of working platform, security performance is high, first baffle plate 3 and second baffle 4 not fragile, when the thickness of the first baffle plate 3 and the thickness of second baffle 4 are less than 18mm, overall poor safety performance, fragile, when the thickness of the first baffle plate 3 and the thickness of second baffle 4 are greater than 22mm, be unfavorable for rotating, the gap formed in the middle part of working platform after assembling is large, security performance is low, described in every root, the longitudinal section of crosspiece 6 is rectangle, described first cleat stanchion 1 and the second cleat stanchion 2 are respectively equipped with the installing hole 61 installed for crosspiece 6, the two ends of described crosspiece 6 are provided with the cushion 60 matched with installing hole 61, described in every root, the top of crosspiece 6 is equipped with the anti-slip veins arranged in the horizontal direction, described crosspiece adopts polyester to make, the width of described crosspiece is 2.85 ~ 4.25mm, two cross-arm difference overhead 350mm and 750mm, by cushion, crosspiece is arranged on installing hole, connect reliable, not easily depart from, security performance is high, by the setting of anti-slip veins, effectively raise the frictional force of ascending a height when trampling, avoid the rainy day work time anti-down, when the width of crosspiece is less than 2.85mm, may exist and run into large pressure when trampling, when trampling, the lifting surface area of footwear is little, crosspiece easily breaks, security performance is low, when the width of crosspiece is greater than 4.25mm, overall installation weak effect, use cost is high, the both sides, bottom of described Anti-slip cover 8 are equipped with circular arc chamfering 80, the top of described Anti-slip cover 8 is all fixedly connected on the first cleat stanchion 1 and the second cleat stanchion 2 by least one rivet, rivet interlacement is reliable, result of use is good, circular arc chamfering 80 is arranged in the both sides, bottom of Anti-slip cover 8, swing when avoiding use, stationary performance is high, also comprise handle 10, one end of described handle 10 is rotatably connected on the first cleat stanchion 1 by bearing pin 100, the other end of described handle 10 is fixedly connected on the second cleat stanchion 2 by snap close 101, described first cleat stanchion 1 is provided with another snap close, by the setting of handle, simplify the workload of carrying, decrease the injury of the first cleat stanchion 1 and the second cleat stanchion 2 pairs of human bodies, security performance is high, simple, be easy to carry, be provided with at least one group between described first cleat stanchion 1 and the second cleat stanchion 2 and first cleat stanchion 1 be fixedly connected on magnet 82 on the second cleat stanchion 2 and metal derby 81, also comprise one and adsorb or repel the control lever 83 on metal derby for controlling magnet 82, described control lever 83 is fixedly connected on the first cleat stanchion 1 or the second cleat stanchion 2 by bandage 84, described magnet 82 is all arranged in the Anti-slip cover 8 of the first cleat stanchion 1 and the second cleat stanchion 2 with metal derby 81, by the cooperation of magnet 82 and metal derby 81, when avoiding carrying, first cleat stanchion 1 is separated with the second cleat stanchion 2, carry effective, structure is simple, control effects is good, simple to operate.
During carrying, by magnet 82 and metal derby 81, first cleat stanchion 1 is fixedly connected on the second cleat stanchion 2, operating personnel only just can need be carried by handle 10, during use, by control lever 83, first cleat stanchion 1 is separated with the second cleat stanchion 2, by the rotation of rotating shaft 5, makes the first baffle plate 3 on the first cleat stanchion 1 and form working platform between the second cleat stanchion 2 and second baffle 4 and supported by Anti-slip cover 8, during operation, undertaken ascending a height by crosspiece 6 or working platform carries out operation.
Rotated in rotating shaft by the first baffle plate and second baffle and form working platform, and supported by the first cleat stanchion and the second cleat stanchion, can trample or be sitting on working platform by crosspiece carrying out ascend a height during use and carry out operation, effectively decrease the work degree of operating personnel, by the safety belt be provided with between the first cleat stanchion and the second cleat stanchion effectively avoid ascend a height time load-bearing after topple over, security performance is high, by the setting of Anti-slip cover, effectively raise overall safety factor, the invention has the beneficial effects as follows: 1, solve agriculture and combine regular job in the lower power distribution cabinet of change, the situations such as the insufficient height caused without operating platform during the work such as maintenance, and single ladder can be avoided to block a difficult unlatching, 2, to solve in daily dress table, table case motorcycle in maintenance process and carry the inconvenient situation of insulating ladder, dress table of being more convenient for connects electricity and maintenance, 3, carrying and the power construction of the electric power utensil in the narrow short spaces such as basement, corridor, access to elevators is solved, 4, solve the single ladder used at present, in use must need people and hold up jail, easily to the table case gear jail of operation or can not the problem such as front-operated.
Claims (6)
1. one kind for power system maintenance insulating ladder, it is characterized in that: comprise the first cleat stanchion (1), second cleat stanchion (2), be fixedly connected on the first baffle plate (3) on the first cleat stanchion (1), be fixedly connected on the second baffle (4) on the second cleat stanchion (2), be rotationally connected by rotating shaft (5) between described first baffle plate (3) and second baffle (4) and be assembled into insulating ladder working platform, described first baffle plate (3) and second baffle (4) are 0 ~ 90 ° at the upper angle rotating rear formation of rotating shaft (5), described first baffle plate (3) and second baffle (4) are 0 ~ 2mm in the upper gap of rotating rear formation of rotating shaft (5), the bottom of described first baffle plate (3) is provided with at least one first axle sleeve (31) matched with rotating shaft (5), the bottom of described second baffle (4) is provided with at least one second axle sleeve (41) matched with rotating shaft (5), described first axle sleeve (31) and the second axle sleeve (41) interlock and are set in rotating shaft (5), described first axle sleeve (31) is provided with restriction first axle sleeve (31) at upper the first block (32) rotated of rotating shaft (5), described second axle sleeve (41) is provided with restriction second axle sleeve (41) at upper the second block (42) rotated of rotating shaft (5), the top of described first cleat stanchion (1) is provided with the first groove (11), the bottom of described first baffle plate (3) is provided with and the first baffle plate (3) is set in first in the first groove (11) connects boss (33), the top of described second cleat stanchion (2) is provided with the second groove (21), the bottom of described second baffle (4) is provided with and second baffle (4) is set in second in the second groove (21) connects boss (43), described first cleat stanchion (1) is provided with at least two groups and connects boss (33) by first and be locked at the first bolt assembly (12) in the first groove (11), described second cleat stanchion (2) is provided with at least two groups and connects boss (43) by second and be locked at the second bolt assembly (22) in the second groove (21), described first cleat stanchion (1) and the second cleat stanchion (2) are equipped with two to be convenient to operating personnel and to ascend a height the crosspiece (6) trampled, be provided with between the first cleat stanchion (1) and the second cleat stanchion (2) at least one for preventing from ascending a height time load-bearing after the safety belt (7) of toppling over, the bottom of described first cleat stanchion (1) and the bottom of the second cleat stanchion (2) are all fixedly connected with an Anti-slip cover (8), the top of described first baffle plate (3) and the top of second baffle (4) are equipped with a cavity (9), reeding (91) is equipped with in each described cavity (9).
2. one according to claim 1 is used for power system maintenance insulating ladder, it is characterized in that: described reeding (91) is separately positioned in cavity (9) in grid-shaped, the degree of depth of described cavity (9) is 3 ~ 5mm, the thickness of described first baffle plate (3) and the thickness of second baffle (4) are 18 ~ 22mm, and the top of described reeding (91) overlaps with the horizontal plane of cavity (9).
3. one according to claim 2 is used for power system maintenance insulating ladder, it is characterized in that: described in every root, the longitudinal section of crosspiece (6) is rectangle, described first cleat stanchion (1) and the second cleat stanchion (2) are respectively equipped with the installing hole (61) installed for crosspiece (6), the two ends of described crosspiece (6) are provided with the cushion (60) matched with installing hole (61), described in every root, the top of crosspiece (6) is equipped with the anti-slip veins arranged in the horizontal direction, and the width of described crosspiece (6) is 2.85 ~ 4.25mm.
4. one according to claim 3 is used for power system maintenance insulating ladder, it is characterized in that: the both sides, bottom of described Anti-slip cover (8) are equipped with circular arc chamfering (80), the top of described Anti-slip cover (8) is all fixedly connected on the first cleat stanchion (1) and the second cleat stanchion (2) by least one rivet.
5. one according to claim 4 is used for power system maintenance insulating ladder, it is characterized in that: also comprise handle (10), one end of described handle (10) is rotatably connected on the first cleat stanchion (1) by bearing pin (100), and the other end of described handle is fixedly connected on the second cleat stanchion (2) by snap close (101).
6. one according to claim 5 is used for power system maintenance insulating ladder, it is characterized in that: be provided with at least one group between described first cleat stanchion (1) and the second cleat stanchion (2) and the first cleat stanchion (1) be fixedly connected on magnet (82) on the second cleat stanchion (2) and metal derby (81), also comprise one to adsorb or the control lever (83) of repulsion on metal derby (81) for controlling magnet (82), described control lever (83) is fixedly connected on the first cleat stanchion (1) or the second cleat stanchion (2) by bandage (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376401.2U CN204024436U (en) | 2014-07-09 | 2014-07-09 | A kind of for power system maintenance insulating ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376401.2U CN204024436U (en) | 2014-07-09 | 2014-07-09 | A kind of for power system maintenance insulating ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024436U true CN204024436U (en) | 2014-12-17 |
Family
ID=52064320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420376401.2U Expired - Fee Related CN204024436U (en) | 2014-07-09 | 2014-07-09 | A kind of for power system maintenance insulating ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204024436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201394A (en) * | 2015-09-30 | 2015-12-30 | 国家电网公司 | Insulated ladder for power maintenance |
| CN108678649A (en) * | 2018-05-02 | 2018-10-19 | 李广连 | It is a kind of to place stable ladder for building |
-
2014
- 2014-07-09 CN CN201420376401.2U patent/CN204024436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201394A (en) * | 2015-09-30 | 2015-12-30 | 国家电网公司 | Insulated ladder for power maintenance |
| CN108678649A (en) * | 2018-05-02 | 2018-10-19 | 李广连 | It is a kind of to place stable ladder for building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 |