CN110159178B - Anti-toppling ladder for power grid infrastructure - Google Patents
Anti-toppling ladder for power grid infrastructure Download PDFInfo
- Publication number
- CN110159178B CN110159178B CN201910527336.6A CN201910527336A CN110159178B CN 110159178 B CN110159178 B CN 110159178B CN 201910527336 A CN201910527336 A CN 201910527336A CN 110159178 B CN110159178 B CN 110159178B
- Authority
- CN
- China
- Prior art keywords
- ladder
- bottom plate
- toppling
- fixedly connected
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/10—Reinforcements for ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses an anti-toppling ladder for a power grid foundation, which comprises a connecting plate, wherein hinge blocks are fixedly connected to the left side wall and the right side wall of the connecting plate, side ladder frames are rotatably connected to the hinge blocks on the two sides, a balance bottom plate is arranged between the adjacent inner walls of the side ladder frames, two shaft pins are symmetrically and fixedly connected to the outer side wall of the balance bottom plate, the end parts of the two shaft pins penetrate through the surface of the side ladder frames, and positioning holes are formed in the surface of the balance bottom plate. According to the anti-toppling ladder for the power grid foundation, the -shaped clamping plates are connected with the balance bottom plates in a matched manner, so that the positioning pins are connected in the positioning holes, the clamping effect of the balance bottom plates and the -shaped clamping plates is achieved, the structure at the bottom end of the ladder is integrated, and the anti-toppling effect of the ladder is improved; through installing the base casing additional, make the bottom bearing capacity of vertical guide arm and side ladder frame distribute in the shock attenuation lug in the base casing, improve the stability of closing the ladder bottom, reach and close the ladder and prevent empting the effect.
Description
Technical Field
The invention belongs to the technical field of ladder closing, and particularly relates to an anti-toppling ladder closing for a power grid infrastructure.
Background
In the construction process of the transformer substation foundation, the phenomenon of falling down of the combined ladder often occurs, the combined ladder has certain unsafe performance in work, most construction sites adopt a mode that one person of the escalator works to prevent the phenomenon, but uncertain factors are increased, and accidents of falling tools and injuring the escalator personnel sometimes occur. Through field inspection, investigation and analysis, the inventor finds that two main reasons for the falling of the closing ladder are insufficient supporting moment of the side face of the closing ladder and large pressure of the closing ladder to the ground.
According to the anti-toppling device for the combined ladder of the transformer substation foundation construction, which is provided by the patent CN201120512537.8, the anti-toppling device for the combined ladder of the transformer substation foundation construction comprises a left diagonal bar, a right diagonal bar, an upper cross bar and a lower cross bar, wherein the left diagonal bar, the right diagonal bar, the upper cross bar and the lower cross bar form a trapezoid structure; rubber insulation leather sleeves are arranged at the bottom supporting points of the left inclined rod and the right inclined rod; the upper cross rod is provided with a bolt hole connected with the transformer substation foundation construction closing ladder, and the upper cross rod is connected with the transformer substation foundation construction closing ladder through a bolt. According to the case, the rubber leather sheath is additionally arranged at the bottom supporting point so as to increase the supporting area and the friction force, the problems that the ground pressure intensity of the combined ladder is overlarge and the supporting moment of the combined ladder side face is insufficient can be fundamentally solved, in addition, the bolt holes connected with the combined ladder for the transformer substation foundation construction are formed in the upper cross rod, the upper cross rod and the combined ladder for the transformer substation foundation construction are connected through bolts, and the connecting part can be disassembled so as to facilitate carrying.
This case shows that although can be through installing the rubber leather sheath additional at bottom sprag point to increase area of support and frictional force, reach and close the ladder and prevent empting the effect, but should close the oblique pole of ladder left and right sides and the stability that ground contacted relatively poor, just increase the frictional force of oblique pole and ground and be difficult to improve and close the ladder and prevent empting the effect, consequently, need a electric wire netting capital construction with preventing empting and closing the ladder.
Disclosure of Invention
The invention aims to provide an anti-toppling ladder for power grid infrastructure, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electric wire netting is anti-toppling and closes ladder, includes the connecting plate, fixedly connected with hinge block on the left and right sides wall of connecting plate, both sides rotate on the hinge block and be connected with the side ladder frame, be provided with balanced bottom plate between the adjacent inner wall of side ladder frame, the lateral wall symmetry fixedly connected with of balanced bottom plate has two pivot, and the tip of two pivot all runs through the surface of side ladder frame, the locating hole has been seted up on balanced bottom plate's surface, the bottom welding of connecting plate has vertical guide arm, be provided with the anti-toppling bottom plate on the vertical guide arm, the inner wall fixedly connected with direction sliding sleeve of anti-toppling bottom plate, and vertical guide arm runs through the inside of sliding sleeve, the inside of anti-toppling bottom plate is provided with the regulating chamber, the inner wall welding of regulating chamber has the nut, the inside threaded connection of nut has the lead screw, one side end fixedly connected with stopper of lead screw, the opposite side tip of lead screw runs through the anti-toppling bottom plate, and extends to the outside and shape cardboard fixed connection of anti-toppling bottom plate, the top and bottom of shape cardboard run through there is the locating pin, the top fixedly connected with vertical guide arm, the bottom of vertical guide arm is provided with the base, the bottom of support plate.
This setting is used for being connected through shape cardboard and balance bottom plate's cooperation, makes the locating pin connect in the locating hole, realizes the joint effect of balance bottom plate and shape cardboard, makes the structure of closing the ladder bottom be the wholeness for it prevents the effect of empting to improve closing the ladder.
Preferably, the inner wall bottom fixedly connected with shock attenuation lug of base casing, shock attenuation lug's upper end is provided with the loading board, the top fixedly connected with support column of loading board, the top of support column runs through the base casing, and extends to the bottom fixed connection of backup pad.
This setting is used for making the bottom bearing capacity of vertical guide arm and side ladder frame distribute in the shock attenuation lug in the base casing through installing the base casing additional, improves the stability of closing the ladder bottom, reaches and closes the ladder and prevent empting the effect.
Preferably, the bottom of the balance bottom plate is also provided with a base shell, and the support column on the base shell is fixedly connected with the bottom of the balance bottom plate.
Preferably, the support columns are transversely equidistantly arranged at the top end of the bearing plate.
This setting is used for improving the stability that base casing and upper end bearing are connected, is favorable to improving the absorbing effect.
Preferably, the shape of the shock absorption convex block is semicircular, and the shock absorption convex block is a matrix made of rubber.
Preferably, a clamping groove is formed in one side, close to the balance bottom plate, of the -shaped clamping plate, and the height of the clamping groove is equal to the thickness of the balance bottom plate.
This setting is used for improving shape cardboard and balanced bottom plate joint stability when.
The invention has the technical effects and advantages that: according to the anti-toppling ladder for the power grid foundation, the -shaped clamping plates are connected with the balance bottom plates in a matched manner, so that the positioning pins are connected in the positioning holes, the clamping effect of the balance bottom plates and the -shaped clamping plates is achieved, the structure at the bottom end of the ladder is integrated, and the anti-toppling effect of the ladder is improved; through installing the base casing additional, make the bottom bearing capacity of vertical guide arm and side ladder frame distribute in the shock attenuation lug in the base casing, improve the stability of closing the ladder bottom, reach and close the ladder and prevent empting the effect.
Drawings
FIG. 1 is a schematic diagram of a structural connection of the present invention;
FIG. 2 is a schematic view of a ladder structure of the present invention;
FIG. 3 is a cross-sectional view of the anti-roll-over floor structure of the present invention;
fig. 4 is a cross-sectional view of the base housing structure of the present invention.
In the figure: 1. a connecting plate; 2. a hinge block; 3. a side ladder frame; 4. a balancing bottom plate; 5. a shaft pin; 6. positioning holes; 7. a longitudinal guide rod; 8. an anti-falling bottom plate; 9. a sliding sleeve; 10. a regulating chamber; 11. a nut; 12. a screw rod; 13. a limiting block; 14. shaped clamp plate; 15. a positioning pin; 16. lifting blocks; 17. a support plate; 18. a base housing; 19. a shock-absorbing bump; 20. a carrying plate; 21. a support column; 22. a clamping groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an anti-toppling ladder for a grid infrastructure, which is shown in fig. 1-4 and comprises a connecting plate 1, wherein hinge blocks 2 are fixedly connected to the left side wall and the right side wall of the connecting plate 1, two sides of the hinge blocks 2 are rotatably connected with side ladder frames 3, a balance bottom plate 4 is arranged between the adjacent inner walls of the side ladder frames 3, two shaft pins 5 are symmetrically and fixedly connected to the outer side walls of the balance bottom plate 4, the end parts of the two shaft pins 5 penetrate through the surfaces of the side ladder frames 3, positioning holes 6 are formed in the surfaces of the balance bottom plate 4, longitudinal guide rods 7 are welded at the bottom ends of the connecting plate 1, anti-toppling bottom plates 8 are arranged on the longitudinal guide rods 7, guide sliding sleeves 9 are fixedly connected to the inner walls of the anti-toppling bottom plates 8, the longitudinal guide rods 7 penetrate through the inner parts of the sliding sleeves 9, an adjusting cavity 10 is arranged in the inner side of the anti-toppling bottom plates 8, nuts 11 are welded on the inner walls of the adjusting cavity 10, screw rods 12 are connected with inner threads of the nuts 11, one side end parts of the screw rods 12 are fixedly connected with limiting blocks 13, the other end parts of the screw rods 12 penetrate through the surfaces of the side bottom plates 8, the anti-toppling bottom plates 8 penetrate through the surfaces of the side ladder frames 3, the bottom plates 15 are fixedly connected with a supporting plate 15, and are fixedly connected with the bottom plates 37, and are connected with the bottom plates 15, and are fixedly connected with the bottom plates of the bottom plates and are in the shape of the bottom plates and are connected with the bottom plates of the bottom plates and are in a shape of the bottom plates of the supporting plates and are connected with the bottom plates and are in a supporting plates and fixed.
Specifically, the inner wall bottom end fixedly connected with damping lug 19 of base casing 18, damping lug 19's upper end is provided with loading board 20, loading board 20's top fixedly connected with support column 21, the top of support column 21 runs through base casing 18, and extends to the bottom fixed connection of backup pad 17.
Specifically, the bottom end of the balancing bottom plate 4 is also provided with a base housing 18, and the support column 21 on the base housing 18 is fixedly connected with the bottom end of the balancing bottom plate 4.
Specifically, three support columns 21 are disposed at the top end of the bearing plate 20 at equal intervals in the transverse direction.
Specifically, the shape of the shock-absorbing bump 19 is a semicircle, and the shock-absorbing bump 19 is a base made of rubber.
Specifically, a clamping groove 22 is formed in one side of the -shaped clamping plate 14, which is close to the balancing bottom plate 4, and the height of the clamping groove 22 is equal to the thickness of the balancing bottom plate 4.
When the anti-toppling ladder for the power grid infrastructure is used, the side ladder frames 3 on two sides are mutually separated through the hinge blocks 2, the ladder opening and closing effect is realized, the position of the anti-toppling bottom plate 8 on the longitudinal guide rod 7 is adjusted at the moment, the clamping grooves 22 in the -shaped clamping plates 14 on two sides and the balance bottom plate 4 are at the same horizontal position, the -shaped clamping plates 14 are rotated to be close to the balance bottom plate 4 at the moment, the positioning pins 15 are connected in the positioning holes 6, the clamping effect of the balance bottom plate 4 and the -shaped clamping plates 14 is realized, the structure of the bottom end of the ladder is integrated, and the anti-toppling effect of the ladder is improved; through installing base casing 18 additional, make the bottom bearing capacity of vertical guide arm 7 and side ladder frame 3 distribute in the shock attenuation lug 19 in the base casing 18, improve the stability of closing the ladder bottom, reach and close the ladder and prevent empting the effect.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (6)
1. The utility model provides a power grid infrastructure closes ladder with preventing empting, includes connecting plate (1), its characterized in that: the utility model discloses a connecting plate, including connecting plate (1), connecting plate, locating hole (6) are offered on the left and right sides wall of connecting plate (1), both sides rotate on hinge piece (2) and be connected with side ladder frame (3), be provided with balanced bottom plate (4) between the adjacent inner wall of side ladder frame (3), the lateral wall symmetry fixedly connected with two pivot (5) of balanced bottom plate (4), and the tip of two pivot (5) all runs through the surface of side ladder frame (3), locating hole (6) are offered on the surface of balanced bottom plate (4), the bottom welding of connecting plate (1) has vertical guide arm (7), be provided with anti-falling bottom plate (8) on vertical guide arm (7), the inner wall fixedly connected with direction sliding sleeve (9) of anti-falling bottom plate (8), and the inside that vertical guide arm (7) runs through sliding sleeve (9), the inside of anti-falling bottom plate (8) is provided with regulating chamber (10), the inner wall welding of regulating chamber (10) has nut (11), the inside threaded connection of nut (11) has lead screw (12), the tip of one side fixedly connected with stopper (12) and anti-falling bottom plate (62) are connected with the cardboard of anti-falling (38) outside extension (14), the utility model discloses a base shell, including shape cardboard, locating pin (15) are run through with the bottom in the top of shape cardboard (14), the top fixedly connected with of locating pin (15) carries piece (16), the bottom welding of vertical guide arm (7) has backup pad (17), the bottom of backup pad (17) is provided with base shell (18).
2. The anti-toppling ladder for power grid infrastructure according to claim 1, wherein: the base comprises a base shell body (18), wherein a damping lug (19) is fixedly connected to the bottom end of the inner wall of the base shell body (18), a bearing plate (20) is arranged at the upper end of the damping lug (19), a supporting column (21) is fixedly connected to the top end of the bearing plate (20), the top end of the supporting column (21) penetrates through the base shell body (18), and the supporting column is fixedly connected to the bottom end of the supporting plate (17).
3. The anti-toppling ladder for power grid infrastructure according to claim 2, wherein: the bottom of the balance bottom plate (4) is also provided with a base shell (18), and a support column (21) on the base shell (18) is fixedly connected with the bottom of the balance bottom plate (4).
4. The anti-toppling ladder for power grid infrastructure according to claim 2, wherein: the support columns (21) are transversely equidistantly arranged at the top end of the bearing plate (20).
5. The anti-toppling ladder for power grid infrastructure according to claim 2, wherein: the shock absorption convex blocks (19) are semicircular in shape, and the shock absorption convex blocks (19) are made of rubber.
6. The anti-toppling ladder for power grid infrastructure according to claim 1, wherein: the -shaped clamping plate (14) is provided with a clamping groove (22) at one side close to the balance bottom plate (4), and the height of the clamping groove (22) is equal to the thickness of the balance bottom plate (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910527336.6A CN110159178B (en) | 2019-06-18 | 2019-06-18 | Anti-toppling ladder for power grid infrastructure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910527336.6A CN110159178B (en) | 2019-06-18 | 2019-06-18 | Anti-toppling ladder for power grid infrastructure |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110159178A CN110159178A (en) | 2019-08-23 |
CN110159178B true CN110159178B (en) | 2023-10-20 |
Family
ID=67625985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910527336.6A Active CN110159178B (en) | 2019-06-18 | 2019-06-18 | Anti-toppling ladder for power grid infrastructure |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110159178B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114382398B (en) * | 2021-12-30 | 2024-08-20 | 国网河北省电力有限公司沧州供电分公司 | Damping anti-toppling ladder for power grid infrastructure |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101392628A (en) * | 2008-11-04 | 2009-03-25 | 来旭 | Side-tilting prevention trestle ladder |
CN203066838U (en) * | 2012-12-18 | 2013-07-17 | 登封市电业(集团)有限公司 | Dumping prevention type combined ladder |
CN204113094U (en) * | 2014-09-13 | 2015-01-21 | 连娇凤 | The steel work double ladder of adjustable pitch |
CN204419012U (en) * | 2014-12-03 | 2015-06-24 | 广东省工业贸易职业技术学校 | Overturning-preventing double ladder |
CN105275377A (en) * | 2015-10-15 | 2016-01-27 | 苏州拓科装饰工程有限公司 | Herringbone ladder |
CN205422503U (en) * | 2016-03-29 | 2016-08-03 | 新都区大丰鹏宇机械厂 | Be applied to multi -functional double ladder of transformer installation, maintenance |
CN205743680U (en) * | 2016-05-17 | 2016-11-30 | 重庆西华皮带轮机械制造有限公司 | A kind of Foldable '*' shape ladder |
CN206707600U (en) * | 2017-04-07 | 2017-12-05 | 王玉瑞 | A kind of novel household double ladder |
CN206722736U (en) * | 2017-05-19 | 2017-12-08 | 国网河南唐河县供电公司 | Portable herringbone insulating ladder |
CN207144802U (en) * | 2017-09-13 | 2018-03-27 | 国网江苏省电力公司宿迁供电公司 | Close terraced anti-tipping apparatus in a kind of capital construction scene |
CN207228986U (en) * | 2017-09-20 | 2018-04-13 | 贵阳湘黔机械厂 | A kind of double ladder safe to use |
CN108343373A (en) * | 2018-03-06 | 2018-07-31 | 国网甘肃省电力公司经济技术研究院 | A kind of electrical repair ladder stand |
CN207715068U (en) * | 2017-10-08 | 2018-08-10 | 王继华 | A kind of high bookshelf takes book to put book apparatus |
CN207795036U (en) * | 2017-09-20 | 2018-08-31 | 贵州飞洲实业有限公司 | A kind of high stability double ladder |
CN207812975U (en) * | 2017-12-27 | 2018-09-04 | 浙江工业职业技术学院 | A kind of Novel herringbone ladder |
CN208236313U (en) * | 2018-02-27 | 2018-12-14 | 梅照付 | One kind can storage type power construction ladder |
-
2019
- 2019-06-18 CN CN201910527336.6A patent/CN110159178B/en active Active
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101392628A (en) * | 2008-11-04 | 2009-03-25 | 来旭 | Side-tilting prevention trestle ladder |
CN203066838U (en) * | 2012-12-18 | 2013-07-17 | 登封市电业(集团)有限公司 | Dumping prevention type combined ladder |
CN204113094U (en) * | 2014-09-13 | 2015-01-21 | 连娇凤 | The steel work double ladder of adjustable pitch |
CN204419012U (en) * | 2014-12-03 | 2015-06-24 | 广东省工业贸易职业技术学校 | Overturning-preventing double ladder |
CN105275377A (en) * | 2015-10-15 | 2016-01-27 | 苏州拓科装饰工程有限公司 | Herringbone ladder |
CN205422503U (en) * | 2016-03-29 | 2016-08-03 | 新都区大丰鹏宇机械厂 | Be applied to multi -functional double ladder of transformer installation, maintenance |
CN205743680U (en) * | 2016-05-17 | 2016-11-30 | 重庆西华皮带轮机械制造有限公司 | A kind of Foldable '*' shape ladder |
CN206707600U (en) * | 2017-04-07 | 2017-12-05 | 王玉瑞 | A kind of novel household double ladder |
CN206722736U (en) * | 2017-05-19 | 2017-12-08 | 国网河南唐河县供电公司 | Portable herringbone insulating ladder |
CN207144802U (en) * | 2017-09-13 | 2018-03-27 | 国网江苏省电力公司宿迁供电公司 | Close terraced anti-tipping apparatus in a kind of capital construction scene |
CN207228986U (en) * | 2017-09-20 | 2018-04-13 | 贵阳湘黔机械厂 | A kind of double ladder safe to use |
CN207795036U (en) * | 2017-09-20 | 2018-08-31 | 贵州飞洲实业有限公司 | A kind of high stability double ladder |
CN207715068U (en) * | 2017-10-08 | 2018-08-10 | 王继华 | A kind of high bookshelf takes book to put book apparatus |
CN207812975U (en) * | 2017-12-27 | 2018-09-04 | 浙江工业职业技术学院 | A kind of Novel herringbone ladder |
CN208236313U (en) * | 2018-02-27 | 2018-12-14 | 梅照付 | One kind can storage type power construction ladder |
CN108343373A (en) * | 2018-03-06 | 2018-07-31 | 国网甘肃省电力公司经济技术研究院 | A kind of electrical repair ladder stand |
Also Published As
Publication number | Publication date |
---|---|
CN110159178A (en) | 2019-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110159178B (en) | Anti-toppling ladder for power grid infrastructure | |
CN110526143A (en) | Bracket is used in a kind of symmetrical wall installing type lifting of high building | |
CN101892812A (en) | Reciprocating drill or electric drill support | |
CN204643605U (en) | A kind of adjustable for height mobile gantry frame | |
CN207392272U (en) | A kind of unit for single-pile vertical anti-pulling static-load testing device | |
CN212802454U (en) | Scaffold frame of encorbelmenting that building engineering used | |
CN210396604U (en) | Anti-tipping ladder for power grid infrastructure | |
CN213185410U (en) | U-shaped steel support | |
CN209109881U (en) | A kind of multipurpose steel component leveling block | |
CN208950270U (en) | A kind of steel structure support frame structure | |
CN221481042U (en) | Bottom installation component of steel structure column | |
CN214249019U (en) | Bridge check out test set safety shock absorber support | |
CN212270698U (en) | Bridge construction support bracket | |
CN107234457A (en) | Helical compressing device | |
CN105293318A (en) | Super-lifting device for crane and use method | |
CN205300008U (en) | Solar energy girder fixing device | |
CN108915151A (en) | A kind of new type roof truss construction structure | |
CN210419128U (en) | Oil gas recovery multi-parameter is upset oil drum for detector | |
CN214117465U (en) | Climb a shock attenuation safety device | |
CN217901718U (en) | Total phosphorus on-line analyzer for water pollution prevention and control | |
CN210164220U (en) | Footing fixing device for aluminum alloy climbing frame | |
CN211948925U (en) | Connecting device of steel structure building | |
CN221799190U (en) | Plastering-free concrete supporting member | |
CN215629961U (en) | Guarantee straightness's supplementary installation device that hangs down of pile foundation | |
CN211572476U (en) | Support for building engineering |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |