CN110905275A - Municipal works foundation ditch safety device - Google Patents
Municipal works foundation ditch safety device Download PDFInfo
- Publication number
- CN110905275A CN110905275A CN201911256130.0A CN201911256130A CN110905275A CN 110905275 A CN110905275 A CN 110905275A CN 201911256130 A CN201911256130 A CN 201911256130A CN 110905275 A CN110905275 A CN 110905275A
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- protection
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- side plate
- foundation pit
- protection unit
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- 238000000034 method Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 46
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a municipal engineering foundation pit safety protection device which comprises a rectangular base, a grid protection unit, a first protection unit and a second protection unit, wherein the grid protection unit is arranged on the rectangular base; the invention can solve the following problems in the use of the existing foundation pit safety protection device, the existing protection plate is generally fixed with the ground by bolts in the process of protecting the outside and is inconvenient to move, and sometimes the foundation pit needs to temporarily pass pedestrians or vehicles in the excavation process; but current foundation ditch preventing device is difficult to remove, and inconvenient use, and massive guard plate is adopted more in current foundation ditch protection, leads to its not convenient to carry scheduling problem.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a municipal engineering foundation pit safety protection device.
Background
The foundation pit refers to a space below the ground excavated for the construction of a building foundation and a basement. The foundation pit belongs to temporary engineering and has the function of providing a space so that the basic masonry operation can be carried out according to the position specified by design.
Generally, when a foundation pit is excavated for construction operation, protective plates are required to be arranged around the foundation pit to prevent pedestrians and passing vehicles from falling into the foundation pit; however, the existing foundation pit safety protection device mainly has the following problems in use, the existing protection plate is generally fixed with the ground by bolts in the process of protecting the outside and is inconvenient to move, and sometimes pedestrians or vehicles need to pass through the foundation pit temporarily in the excavation process; but current foundation ditch preventing device is difficult to remove, and inconvenient use, and massive guard plate is adopted more in current foundation ditch protection, leads to its not convenient to carry.
The temporary passing of pedestrians and the carrying of the foundation pit protection device are facilitated; the invention provides a municipal engineering foundation pit safety protection device.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme that the municipal engineering foundation pit safety protection device comprises a rectangular base, a grating protection unit, a first protection unit and a second protection unit; the upper end of rectangle base is provided with the rectangle spout, and is located its rectangle spout and is provided with four group's grid protection unit through sliding fit mode, a protection unit and No. two protection unit figure be two, and a protection unit and No. two protection units all install in grid protection unit upper end to the position of a protection unit and No. two prevent that the position of unit corresponds each other, wherein:
the grid protection unit comprises a loop bar, a connecting rod, a special-shaped rod sleeve, a limiting column and a rolling module; the upper end of the loop bar is provided with a rectangular mounting hole, and the middle part of the loop bar is provided with a rectangular through hole; the plurality of loop bars are connected through connecting rods which are crossed by pin shafts; the sleeve rod is connected with the connecting rod through a pin shaft; the connecting rod positioned on the left outer side is connected with a special-shaped rod sleeve through a pin shaft, a fixed groove is formed in the special-shaped rod sleeve, and a limiting column is arranged in the fixed groove; the lower end of the loop bar is provided with a rolling module in a movable connection mode; the distance between the adjacent loop bars can be conveniently adjusted by the arranged grid protection units, the surrounding range is set according to the size of the foundation pit, and meanwhile, the arranged grid protection units are convenient to store and convenient for workers to carry; and the occupied area is small.
The first protection unit comprises a first clamping unit, a first protection side plate and a first auxiliary inclined block; a joint unit evenly set up inside the rectangle mounting hole of loop bar upper end, and the other end of a joint unit passes through the sliding fit mode and installs in the inner wall sliding tray of a protection curb plate, the upper end of a protection curb plate evenly is provided with the locating hole, and the inner wall that is located its locating hole evenly is provided with the fixed pearl of rubber through the swing joint mode, the lower extreme of a protection curb plate be provided with supplementary sloping block No. one through the joint mode.
The second protection unit comprises a second clamping unit, a second protection side plate, a plug bolt, a push-pull plate and a second auxiliary inclined block; the second clamping unit is uniformly arranged in the rectangular mounting hole at the upper end of the loop bar, the other end of the second clamping unit is mounted in the inner wall sliding groove of the second protective side plate in a sliding fit mode, the upper end of the second protective side plate is uniformly provided with a piston hole, the side wall of the second protective side plate is provided with a rectangular cut hole, a plug bolt is arranged in the piston hole of the second protective side plate in a movable connection mode, one end of the plug bolt positioned in the second protective side plate is connected to the push-pull plate, and the push-pull plate is mounted in the rectangular cut hole of the second protective side plate in a sliding fit mode; the lower end of the second protective side plate is provided with a second auxiliary inclined block in a clamping manner; the second clamping unit and the first clamping unit are in the same structure; when the foundation pit needs to be covered by the cover, pedestrians or vehicles can pass through the foundation pit conveniently; butting the second protection side plate with the first protection side plate, and pushing the push-pull plate to enable the plug-in bolt to be inserted into the positioning hole in the upper end of the first protection side plate, so that a vehicle or a pedestrian can pass through the plug-in bolt conveniently; prevent pedestrian or vehicle current through erectting between No. two protective element that set up and the protective element, prevent that vehicle or pedestrian from dropping the foundation ditch and taking place danger, and be convenient for assemble No. two protection curb plates and a protection curb plate when needs pedestrian or vehicle pass through from the foundation ditch and make things convenient for the pedestrian to pass through.
The first clamping unit comprises an L-shaped connecting rod, a top extension spring and a top extension pressing block, the top end of the L-shaped connecting rod is provided with the top extension pressing block in a sliding connection mode, and the top extension pressing block is connected with the L-shaped connecting rod through the top extension spring; through a calorie of joint unit that sets up be convenient for fix a protection curb plate in loop bar upper end, and make things convenient for a protection curb plate to remove on a calorie of joint unit, further carry out the adaptability according to the distance between the adjacent loop bar and adjust.
The rolling module comprises a pressure spring, a clamping block and a movable wheel; the clamping block is of a U-shaped structure, is arranged at the lower end of the loop bar in a sliding fit mode, and is connected with the outer wall of the lower end of the loop bar through a pressure spring; the inside of the clamping block is provided with a movable wheel in a sliding connection mode; the movable wheels are in contact with the upper end of the rectangular base, so that the moving performance of the grid protection unit on the rectangular base can be improved; the invention is convenient to move.
No. two protection curb plates be the buffer material structure, and the rigidity intensity of No. two protection curb plates is big.
Preferably; the first protective side plate is of a buffer material structure, and the rigidity strength of the first protective side plate is high; the first protective side plate is arranged to be of a buffer material structure, so that damage caused by collision between pedestrians and vehicles can be reduced; and the rigidity intensity of the first protection side plate is high, so that the first protection side plate and the second protection side plate can be lapped to cover the surface of the foundation pit, and pedestrians and vehicles can pass through the foundation pit conveniently.
Preferably; the outer wall of the jacking pressing block is uniformly provided with rolling balls in a movable connection mode; the rolling balls are arranged on the outer wall of the top extension pressing block, so that the top extension pressing block and the first protection side plate can be promoted to move relatively, and the service performance of the invention is improved.
Preferably; the outer wall of the movable wheel is sleeved with a rubber sleeve; the rubber sleeve is sleeved on the outer wall of the movable wheel, so that the movable wheel can move conveniently and the rectangular base cannot be damaged.
Advantageous effects
The second protection unit and the first protection unit are vertically arranged to prevent pedestrians or vehicles from passing through, so that the vehicles or the pedestrians are prevented from falling into a foundation pit to cause danger, and when the pedestrians or the vehicles need to pass through the foundation pit, the second protection side plate and the first protection side plate are convenient to assemble and convenient for the pedestrians to pass through;
the grid protection units are convenient to adjust the distance between the adjacent loop bars, the surrounding range is set according to the size of the foundation pit, and meanwhile the grid protection units are convenient to store and convenient for workers to carry; and the occupied area is small;
the first clamping unit is arranged to facilitate the first protection side plate to be fixed at the upper end of the loop bar, the first protection side plate can move on the first clamping unit conveniently, and further adaptive adjustment is carried out according to the distance between adjacent loop bars.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of a portion of the invention at M in FIG. 2;
fig. 4 is a partial enlarged view of the invention at N in fig. 2.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 4, the municipal engineering foundation pit safety protection device comprises a rectangular base 1, a grating protection unit 2, a first protection unit 3 and a second protection unit 4; the upper end of rectangular base 1 is provided with the rectangle spout, and is located its rectangle spout and is provided with four group's grid protective unit 2 through sliding fit, protective unit 3 and No. two protective unit 4 figure be two, and protective unit 3 and No. two protective unit 4 all install in grid protective unit 2 upper end to the position of protective unit 3 and No. two protective unit's position correspond each other, wherein:
the grille protection unit 2 comprises a loop bar 21, a connecting rod 22, a special-shaped bar sleeve 23, a limiting column 24 and a rolling module 25; the upper end of the loop bar 21 is provided with a rectangular mounting hole, and the middle part of the loop bar 21 is provided with a rectangular through hole; a plurality of the loop bars 21 are connected through connecting rods 22 which are arranged in a pin shaft cross way; the loop bar 21 is connected with the connecting rod 22 through a pin shaft; the connecting rod 22 positioned on the left outer side is connected with a special-shaped rod sleeve 23 through a pin shaft, a fixing groove is formed in the special-shaped rod sleeve 23, and a limiting column 24 is arranged in the fixing groove; the lower end of the loop bar 21 is provided with a rolling module 25 in a movable connection mode; the arranged grid protection units 2 are convenient for adjusting the distance between the adjacent loop bars 21, the surrounding range is set according to the size of the foundation pit, and meanwhile, the arranged grid protection units 2 are convenient for storage and convenient for workers to carry; and the occupied area is small.
The rolling module 25 comprises a pressure spring 251, a clamping block 252 and a movable wheel 253; the clamping block 252 is of a U-shaped structure, the clamping block 252 is installed at the lower end of the loop bar 21 in a sliding fit mode, and the clamping block 252 is connected with the outer wall of the lower end of the loop bar 21 through a pressure spring 251; the inside of the clamping block 252 is provided with a movable wheel 253 in a sliding connection mode; the outer wall of the movable wheel 253 is sleeved with a rubber sleeve; the rubber sleeve is sleeved on the outer wall of the movable wheel 253, so that the movable wheel 253 can move conveniently and the rectangular base 1 cannot be damaged; the moving performance of the grill protection unit 2 on the rectangular base 1 can be improved by the movable wheels 253 making contact with the upper end of the rectangular base 1; the invention is convenient to move.
The first protection unit 3 comprises a first clamping unit 31, a first protection side plate 32 and a first auxiliary inclined block 33; the first clamping units 31 are uniformly arranged in rectangular mounting holes in the upper end of the loop bar 21, the other ends of the first clamping units 31 are mounted in inner wall sliding grooves of the first protective side plates 32 in a sliding fit mode, positioning holes are uniformly formed in the upper ends of the first protective side plates 32, rubber fixing beads are uniformly arranged on the inner walls of the positioning holes in a movable connection mode, a first auxiliary inclined block 33 is arranged at the lower ends of the first protective side plates 32 in a clamping mode, the first protective side plates 32 are of a buffer material structure, and the rigidity strength of the first protective side plates 32 is high; the first protective side plate 32 is made of a buffer material structure, so that damage caused by collision between pedestrians and vehicles can be reduced; and the rigidity intensity of the first protective side plate 32 is high, so that the first protective side plate can be lapped with the second protective side plate 42 to cover the surface of the foundation pit, and pedestrians and vehicles can pass through the foundation pit conveniently.
The first clamping unit 31 comprises an L-shaped connecting rod 311, a top extension spring 312 and a top extension pressing block 313, the top end of the L-shaped connecting rod 311 is provided with the top extension pressing block 313 in a sliding connection mode, the top extension pressing block 313 is connected with the L-shaped connecting rod 311 through the top extension spring 312, and the outer wall of the top extension pressing block 313 is uniformly provided with rolling balls in a movable connection mode; the rolling balls are arranged on the outer wall of the top extension pressing block 313, so that the top extension pressing block 313 and the first protection side plate 32 can be promoted to move relatively, and the service performance of the invention is improved; through a joint unit 31 that sets up be convenient for fix a protection curb plate 32 in loop bar 21 upper end, and make things convenient for a protection curb plate 32 to remove on a joint unit 31, further carry out the adaptability according to the distance between the adjacent loop bar 21 and adjust.
The second protection unit 4 comprises a second clamping unit 41, a second protection side plate 42, an insertion bolt 43, a push-pull plate 44 and a second auxiliary inclined block 45; the second clamping unit 41 is uniformly arranged in a rectangular mounting hole at the upper end of the loop bar 21, the other end of the second clamping unit 41 is arranged in a sliding groove on the inner wall of the second protection side plate 42 in a sliding fit mode, the upper end of the second protection side plate 42 is uniformly provided with a piston hole, a rectangular cut hole is formed in the side wall of the second protection side plate 42, a plug bolt 43 is arranged in the piston hole of the second protection side plate 42 in a movable connection mode, one end of the plug bolt 43 in the second protection side plate 42 is connected to the push-pull plate 44, and the push-pull plate 44 is arranged in the rectangular cut hole of the second protection side plate 42 in a sliding fit mode; the lower end of the second protective side plate 42 is provided with a second auxiliary inclined block 45 in a clamping manner; the second clamping unit 41 and the first clamping unit 31 are of the same structure; the second protective side plate 42 is of a buffer material structure, and the rigidity strength of the second protective side plate 42 is high; when the foundation pit needs to be covered by the cover, pedestrians or vehicles can pass through the foundation pit conveniently; butting the second protective side plate 42 with the first protective side plate 32, and pushing the push-pull plate 44 to enable the plug bolt 43 to be inserted into the positioning hole at the upper end of the first protective side plate 32, so that the vehicle or the pedestrian can pass through the plug bolt conveniently; through erectting between No. two protective element 4 and the protective element 3 that set up and stopping pedestrian or vehicle current, prevent that vehicle or pedestrian from dropping the foundation ditch and taking place danger, and be convenient for assemble No. two protective side plate 42 and a protective side plate 32 and make things convenient for the pedestrian to pass through when needing pedestrian or vehicle to pass through from the foundation ditch.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A municipal engineering foundation pit safety protection device comprises a rectangular base (1), a grating protection unit (2), a first protection unit (3) and a second protection unit (4); the method is characterized in that: the upper end of rectangle base (1) is provided with the rectangle spout, and is located and is provided with four group's grid protection unit (2) through sliding fit mode in its rectangle spout, a protection unit (3) and No. two protection unit (4) figure be two, and a protection unit (3) and No. two protection unit (4) all install grid protection unit (2) upper end to the position of a protection unit (3) and the position of No. two protection unit correspond each other, wherein:
the grid protection unit (2) comprises a loop bar (21), a connecting rod (22), a special-shaped bar sleeve (23), a limiting column (24) and a rolling module (25); the upper end of the loop bar (21) is provided with a rectangular mounting hole, and the middle part of the loop bar (21) is provided with a rectangular through hole; the plurality of loop bars (21) are connected through connecting rods (22) which are arranged in a pin shaft crossed manner; the sleeve rod (21) is connected with the connecting rod (22) through a pin shaft; the connecting rod (22) positioned on the left outer side is connected with a special-shaped rod sleeve (23) through a pin shaft, a fixing groove is formed in the special-shaped rod sleeve (23), and a limiting column (24) is arranged in the fixing groove; the lower end of the loop bar (21) is provided with a rolling module (25) in a movable connection way;
the first protection unit (3) comprises a first clamping unit (31), a first protection side plate (32) and a first auxiliary inclined block (33); a joint unit (31) evenly set up inside the rectangle mounting hole of loop bar (21) upper end, and the other end of a joint unit (31) passes through the sliding fit mode and installs the inner wall sliding tray at a protection curb plate (32), the upper end of a protection curb plate (32) evenly is provided with the locating hole, and the inner wall that is located its locating hole evenly is provided with the fixed pearl of rubber through the swing joint mode, the lower extreme of a protection curb plate (32) be provided with supplementary sloping block (33) No. one through the joint mode.
2. The municipal engineering foundation pit safety device of claim 1, wherein: the second protection unit (4) comprises a second clamping unit (41), a second protection side plate (42), a plug bolt (43), a push-pull plate (44) and a second auxiliary inclined block (45); the clamping units (41) are uniformly arranged in a rectangular mounting hole in the upper end of the loop bar (21), the other end of each clamping unit (41) is mounted in a sliding groove in the inner wall of the corresponding protective side plate (42) in a sliding fit mode, a piston hole is uniformly formed in the upper end of each protective side plate (42), a rectangular cut hole is formed in the side wall of each piston hole, a plug-in bolt (43) is movably connected in each piston hole of each protective side plate (42), one end of each plug-in bolt (43) located in each protective side plate (42) is connected to the corresponding push-pull plate (44), and the push-pull plates (44) are mounted in the rectangular cut holes of the corresponding protective side plates (42) in a sliding fit mode; the lower end of the second protective side plate (42) is provided with a second auxiliary inclined block (45) in a clamping manner; the second clamping unit (41) and the first clamping unit (31) are of the same structure.
3. The municipal engineering foundation pit safety device of claim 1, wherein: a joint unit (31) include L type connecting rod (311), top extension spring (312) and top extension briquetting (313), the top of L type connecting rod (311) is provided with top extension briquetting (313) through sliding connection mode, and the top is extended and is connected through top extension spring (312) between briquetting (313) and L type connecting rod (311).
4. The municipal engineering foundation pit safety device of claim 1, wherein: the rolling module (25) comprises a pressure spring (251), a clamping block (252) and a movable wheel (253); the clamping block (252) is of a U-shaped structure, the clamping block (252) is installed at the lower end of the loop bar (21) in a sliding fit mode, and the clamping block (252) is connected with the outer wall of the lower end of the loop bar (21) through a pressure spring (251); the inside activity wheel (253) that is provided with through sliding connection mode of joint piece (252).
5. The municipal engineering foundation pit safety device of claim 1, wherein: the first protection side plate (32) is of a buffer material structure, and the rigidity strength of the first protection side plate (32) is high.
6. The municipal engineering foundation pit safety device of claim 2, wherein: no. two protection curb plate (42) be the buffer material structure, and the rigidity intensity of No. two protection curb plate (42) is big.
7. The municipal engineering foundation pit safety device of claim 3, wherein: the outer wall of the top-extending pressing block (313) is uniformly provided with rolling balls in a movable connection mode.
8. The municipal engineering foundation pit safety device of claim 4, wherein: the outer wall of the movable wheel (253) is sleeved with a rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256130.0A CN110905275B (en) | 2019-12-10 | 2019-12-10 | Municipal works foundation ditch safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256130.0A CN110905275B (en) | 2019-12-10 | 2019-12-10 | Municipal works foundation ditch safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110905275A true CN110905275A (en) | 2020-03-24 |
| CN110905275B CN110905275B (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911256130.0A Expired - Fee Related CN110905275B (en) | 2019-12-10 | 2019-12-10 | Municipal works foundation ditch safety device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110905275B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288518A (en) * | 2022-09-20 | 2022-11-04 | 陈朝敬 | Safety support protection device for municipal foundation pit construction |
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| KR20050031089A (en) * | 2005-03-07 | 2005-04-01 | 최성욱 | The fence by without leave cross prevention |
| CN203285142U (en) * | 2013-06-03 | 2013-11-13 | 温岭市宏达建筑工程有限公司 | Foundation pit guardrail for building construction |
| CN205688959U (en) * | 2016-06-13 | 2016-11-16 | 湖北科保安防护设备有限公司 | A kind of foundation ditch guard rail |
| CN107558394A (en) * | 2017-09-04 | 2018-01-09 | 黄锦山 | A kind of safety protection device of municipal road foundation pit |
| JP2018012970A (en) * | 2016-07-21 | 2018-01-25 | 大成建設株式会社 | Simplified fence |
| CN109441219A (en) * | 2018-12-12 | 2019-03-08 | 王智博 | A kind of road construction warning isolating device |
| CN208763541U (en) * | 2018-08-31 | 2019-04-19 | 浙江康沃电力有限公司 | A kind of safety protective fence for power engineering |
| CN109723275A (en) * | 2019-03-04 | 2019-05-07 | 重庆金科建筑设计研究院有限公司 | Fast assembled protective fence |
-
2019
- 2019-12-10 CN CN201911256130.0A patent/CN110905275B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050031089A (en) * | 2005-03-07 | 2005-04-01 | 최성욱 | The fence by without leave cross prevention |
| CN203285142U (en) * | 2013-06-03 | 2013-11-13 | 温岭市宏达建筑工程有限公司 | Foundation pit guardrail for building construction |
| CN205688959U (en) * | 2016-06-13 | 2016-11-16 | 湖北科保安防护设备有限公司 | A kind of foundation ditch guard rail |
| JP2018012970A (en) * | 2016-07-21 | 2018-01-25 | 大成建設株式会社 | Simplified fence |
| CN107558394A (en) * | 2017-09-04 | 2018-01-09 | 黄锦山 | A kind of safety protection device of municipal road foundation pit |
| CN208763541U (en) * | 2018-08-31 | 2019-04-19 | 浙江康沃电力有限公司 | A kind of safety protective fence for power engineering |
| CN109441219A (en) * | 2018-12-12 | 2019-03-08 | 王智博 | A kind of road construction warning isolating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115288518A (en) * | 2022-09-20 | 2022-11-04 | 陈朝敬 | Safety support protection device for municipal foundation pit construction |
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| CN110905275B (en) | 2020-08-25 |
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Address after: 433134 Hanqi Road, zongkou Industrial Park, zongkou management zone, Qianjiang City, Jingzhou City, Hubei Province Applicant after: TIAN EN CONSTRUCTION GROUP Co.,Ltd. Address before: 433134 Hanqi Road, zongkou Industrial Park, zongkou management zone, Qianjiang City, Wuhan City, Hubei Province Applicant before: TIAN EN CONSTRUCTION GROUP Co.,Ltd. |
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Effective date of registration: 20210421 Address after: 226600 Renqiao Industrial Zone, Hai'an hi tech Zone, Hai'an City, Nantong City, Jiangsu Province (group 2, zushimiao Village) Patentee after: Nantong YONGGU Construction Co.,Ltd. Address before: 433134 Hanqi Road, zongkou Industrial Park, zongkou management zone, Qianjiang City, Jingzhou City, Hubei Province Patentee before: TIAN EN CONSTRUCTION GROUP Co.,Ltd. |
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