CN110388078B - Building construction foundation pit rail guard - Google Patents
Building construction foundation pit rail guard Download PDFInfo
- Publication number
- CN110388078B CN110388078B CN201910632517.5A CN201910632517A CN110388078B CN 110388078 B CN110388078 B CN 110388078B CN 201910632517 A CN201910632517 A CN 201910632517A CN 110388078 B CN110388078 B CN 110388078B
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- Prior art keywords
- base
- falling
- rod
- bevel gear
- protective fence
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/06—Continuous barriers extending along roads or between traffic lanes essentially made of cables, nettings or the like
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Fencing (AREA)
Abstract
The invention relates to a building construction foundation pit protective fence which comprises a protective fence body, wherein the protective fence body comprises a base, a cross rod and two vertical rods which are parallel to each other, the two vertical rods are vertically connected to the base, one end, far away from the base, of the cross rod is vertically connected with the vertical rods, the base is fixedly connected to the ground, an anti-falling blocking net is arranged in an area defined by the base, the cross rod and the two vertical rods, the anti-falling blocking net is respectively connected with the base, the cross rod and the vertical rods through a plurality of pull ropes, the pull ropes are respectively and rotatably wound on the base, the cross rod and the vertical rods, when the connection part of the pull ropes and the anti-falling blocking net is close to the protective fence body, the anti-falling blocking net is tightly attached to the protective fence body, and when the connection part of the pull ropes and the anti-falling blocking net is far away from the protective fence body, the anti-falling blocking net and the protective fence body form an anti-falling space. The invention has the effect of effectively preventing personnel and vehicles from falling to the foundation pit.
Description
Technical Field
The invention relates to the technical field of foundation pit protection, in particular to a building construction foundation pit protective fence.
Background
At present, the guard railing is generally arranged on the periphery of a foundation pit for building construction, the warning effect is achieved, and the danger that people and vehicles mistakenly enter the construction area of the foundation pit and fall is avoided.
Among the prior art, chinese patent that the grant publication number is CN107829565A discloses a rail guard for building site, including two stands, two stand inboards vertically all are equipped with the spout, be equipped with a plurality of sliders in the spout, the side of one side slider is connected with the sleeve, be equipped with the loop bar in the sleeve, the end and the opposite side slider of loop bar are connected, the sleeve wants the position that corresponds with the loop bar to be equipped with a plurality of pinholes, be equipped with the locating pin in the pinhole, the bottom mounting of one side stand is on the base, still include the runner, be equipped with the axostylus axostyle on the runner, the both ends of axostylus axostyle are equipped with the support, the bottom and the leg joint of opposite side stand.
The above prior art solutions have the following drawbacks: the upright posts are placed on the concrete ground, so that the force required for installing the guardrail is saved, and constructors can directly move the guardrail when entering or exiting a certain position; however, such a protective guard has poor impact resistance, and when a pedestrian or a vehicle accidentally hits the protective guard, the protective guard is easily fallen down, and particularly, when the vehicle collides with the protective guard during the construction of a foundation pit and during an accident or a side-by-side driving of the vehicle, the vehicle may break through the protective guard, so that the vehicle falls into the foundation pit, thereby causing a significant traffic accident.
Disclosure of Invention
The invention aims to provide a building construction foundation pit protective fence which has the advantage of effectively preventing personnel and vehicles from falling into a foundation pit.
The above object of the present invention is achieved by the following technical solutions:
a building construction foundation pit protective fence comprises a protective fence body, wherein the protective fence body comprises a base, a cross rod and two vertical rods which are parallel to each other, the two vertical rods are vertically connected to the base, one end of the cross rod, which is far away from the base, is vertically connected with the vertical rod, the base is fixedly connected on the ground, the area enclosed by the base, the cross rod and the two vertical rods is provided with an anti-falling arresting net which is respectively connected with the base, the cross rod and the vertical rods through a plurality of pull ropes, the pull ropes are respectively wound on the base, the cross rod and the vertical rod in a rotating way, when the joint of the pull ropes and the anti-falling arresting net is close to the protective guard body, the anti-falling arresting net is tightly attached to the protective guard body, and when the joint of the pull rope and the anti-falling arresting net is far away from the protective guard body, the anti-falling arresting net and the protective guard body form an anti-falling space.
According to the technical scheme, the base of the protective guard body is connected to the ground above a foundation pit or poured on the ground above the foundation pit through the foundation bolts, when a vehicle is in an accident or runs near the side, the vehicle rushes towards the protective guard body and collides against the anti-falling blocking net, the anti-falling blocking net moves away from the protective guard body under the action of the impact force of the vehicle, in the process, the anti-falling blocking net pulls the pull ropes out of the base, the transverse rod and the vertical rod respectively, when the pull ropes wound on the base, the transverse rod and the vertical rod respectively are completely pulled out, the anti-falling blocking net and the protective guard body form an anti-falling space of the vehicle through the plurality of pull ropes, the vehicle rushes into the anti-falling space, the probability that the vehicle rushes out of the protective guard body into the foundation pit is reduced, and the protective guard has the advantage of effectively preventing personnel and the vehicle from falling into the foundation pit.
The anti-falling arresting net is further provided with rotating rods which are rotatably connected inside the base, the transverse rod and the vertical rod, grooves for the stay ropes to penetrate through are formed in the same sides of the base, the transverse rod and the vertical rod, and one ends of the stay ropes far away from the anti-falling arresting net are fixedly connected with the rotating rods.
Implement above-mentioned technical scheme, accomodate and twine respectively the in-process in base, horizontal pole and montant to the stay cord again, because stay cord one end passes the fluting respectively with corresponding dwang fixed connection, so rotate corresponding dwang and can correspond the stay cord respectively and wind on the dwang in base, horizontal pole and montant to accomodate the stay cord, and make and prevent weighing down the barrier net and paste tightly mutually with the rail guard body.
The invention is further arranged in that a first bevel gear is coaxially fixed at both ends of each rotating rod, and the first bevel gears at the ends, close to each other, of the two adjacent rotating rods are meshed with each other.
Implement above-mentioned technical scheme, with the equal coaxial fixed first bevel gear in both ends of four dwangs, four dwangs enclose into the rectangle, and the first bevel gear intermeshing of the one end that two adjacent dwangs are close to mutually, in-process accomodating the stay cord, only need rotate one of them dwang, can drive three other dwangs and together rotate, make four dwangs rotate simultaneously, connect every stay cord on the dwang with one end, twine every stay cord on the dwang, thereby accomplish accomodating every stay cord fast.
The invention is further arranged in that a rotating rod in the vertical rod is provided with a gear commutator, the gear commutator comprises a second bevel gear and a third bevel gear, the second bevel gear and the third bevel gear are meshed with each other, the axes of the second bevel gear and the third bevel gear are mutually vertical, the second bevel gear is coaxially fixed on the rotating rod in the vertical rod, and one side of the vertical rod, which is deviated from the slot, is rotatably connected with a rotating shaft which penetrates through the vertical rod and is coaxially fixed with the third bevel gear.
Implement above-mentioned technical scheme, through setting up gear commutator, when needs rotate the dwang, through rotating the axis of rotation, the rotation of axis of rotation drives third bevel gear and rotates, pivoted third bevel gear drives rather than engaged with second bevel gear and rotates, thereby make second bevel gear drive rotate rather than coaxial fixed dwang, a pivoted dwang drives other three bevel gears through first bevel gear and rotates, thereby be convenient for rotate four dwang.
The invention is further arranged in that one end of the rotating shaft, which penetrates out of the vertical rod, is provided with a rotating handle, the rotating handle is L-shaped, and a rotating cylinder is sleeved on a rod body of the rotating handle, which is parallel to the rotating shaft.
Implement above-mentioned technical scheme, through being provided with the turning handle, make things convenient for constructor to rotate the axis of rotation, thereby rotate the dwang in the montant through gear commutator, thereby it together rotates to drive other three dwangs, and twine the stay cord on the dwang, accomodate the stay cord, and set up the turning handle into L shape, constructor when rotating the axis of rotation through the turning handle, the turning handle carries out the rotation of three hundred sixty degrees around the axis of rotation, through the sleeve that cup joints on the body of rod parallel with the axis of rotation on the turning handle, make things convenient for the constructor hand to hold the turning handle and rotate it.
The invention is further arranged in that one end of the rotating shaft, which penetrates out of the vertical rod, is provided with an inserting hole along the axis of the rotating shaft, and the rotating handle is matched with the inserting hole in an inserting way.
Implement above-mentioned technical scheme, through being provided with the spliced eye to peg graft the turning handle with the axis of rotation through the spliced eye, when needs rotate the axis of rotation, only need with the turning handle in the spliced eye, thereby conveniently rotate the axis of rotation, when needs rotate the dwang of other rail guard body, take out the turning handle, and insert in another dwang and rotate it, saved the material.
The invention is further provided that the rotating rod is sleeved with a coil spring, one end of the coil spring is detachably connected with the rotating rod, and the other end of the coil spring is detachably connected with the protective guard body.
By implementing the technical scheme, the coil spring is sleeved on the rotating rod, when the pull rope is wound and stored on the rotating rod, two ends of the coil spring sleeved on the rotating rod are respectively fixedly connected with the rotating rod and the protective guard body through the bolts, when the anti-falling protective barrier net is impacted by a vehicle, the pull rope is pulled to drive the rotating rod to rotate, in the process of rotating the rotating rod, the coil spring generates elastic deformation to generate resistance for preventing the rotating rod from continuing to rotate and increasing the resistance for pulling the pull rope out of the rotating rod in a rotating way, so that the impact of the vehicle on the anti-falling protective barrier net is further reduced, simultaneously, two ends of the coil spring are respectively detachably connected with the rotating rod and the protective guard body, when the pull rope is respectively wound on the rotating rod, the coil spring is respectively fixedly connected with the rotating rod and the protective guard body through the bolts, so that the rotating rod rotates and the pull rope is wound and stored, the coil spring does not generate resistance to the rotation of the rotating lever.
The invention is further provided that the anti-falling arresting net is provided with a net frame along the edge thereof, and one end of the pull rope far away from the protective guard body is fixedly connected with the net frame.
According to the technical scheme, the anti-falling arresting net is conveniently and fixedly connected to the net frame through the net frame, and the pull rope is conveniently and fixedly connected with the net frame, so that the anti-falling arresting net is connected with the protective fence body.
The anti-collision device is further provided with an anti-collision barrel arranged between the cross rod and the base, and two ends of the anti-collision barrel are respectively and rotatably connected with the cross rod and the base.
Implement above-mentioned technical scheme, through being provided with an anticollision section of thick bamboo for the vehicle bumps the in-process to the rail guard body, collides with an anticollision section of thick bamboo on the rail guard body earlier, greatly reduced the impact force of vehicle, when an anticollision section of thick bamboo fails to block the vehicle and is bumped, at this moment, after the vehicle passes through the buffering of an anticollision section of thick bamboo, its speed has greatly reduced, when the vehicle dashes again to preventing weighing down and blocking the net, prevent weighing down and block that the net passes through the space of preventing weighing down that stay cord and rail guard body formed and can effectively prevent that the vehicle from falling into the foundation ditch.
In conclusion, the invention has the following beneficial effects:
when a vehicle is in an accident or runs near the side, the vehicle rushes to a protective guard body and collides to an anti-falling blocking net, the anti-falling blocking net moves away from the protective guard body under the impact force of the vehicle, in the process, pull ropes are respectively pulled out from a base, a cross rod and a vertical rod by the anti-falling blocking net, when the pull ropes respectively wound on the base, the cross rod and the vertical rod are completely pulled out, the anti-falling blocking net and the protective guard body form an anti-falling space of the vehicle through a plurality of pull ropes, the vehicle rushes into the anti-falling space, the probability that the vehicle rushes out of the protective guard body and rushes into a foundation pit is reduced, and the anti-falling protective guard has the advantage of effectively preventing personnel and the vehicle from falling into the foundation pit;
the two ends of the four rotating rods are coaxially fixed with first bevel gears, the four rotating rods are surrounded into a rectangle, the first bevel gears at the ends, close to the two adjacent rotating rods, of the two rotating rods are meshed with each other, and in the process of accommodating the pull ropes, only one rotating rod needs to be rotated to drive the other three rotating rods to rotate together, so that the four rotating rods rotate simultaneously, one end of each pull rope is connected to each pull rope on the rotating rod, and each pull rope is wound on the rotating rod, and therefore the accommodating of each pull rope is completed quickly;
third, through setting up gear commutator, when needs rotate the dwang, through rotating the axis of rotation, the rotation of axis of rotation drives third bevel gear and rotates, and pivoted third bevel gear drives rather than engaged with second bevel gear and rotates to make second bevel gear drive rotate rather than coaxial fixed dwang, a pivoted dwang drives other three bevel gears through first bevel gear and rotates, thereby is convenient for rotate four dwangs.
Drawings
Fig. 1 is a schematic view of the overall structure of a foundation pit protective fence for building construction according to an embodiment of the invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a cross-sectional view of a vertical post according to an embodiment of the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is a schematic view of the connection structure of the rotating rod and the anti-falling barrier net through the pull rope according to the embodiment of the invention.
Reference numerals: 1. a guard rail body; 101. a base; 102. a cross bar; 103. a vertical rod; 2. an anti-falling arresting net; 3. pulling a rope; 4. rotating the rod; 5. grooving; 6. a first bevel gear; 7. a gear commutator; 701. a second bevel gear; 702. a third bevel gear; 8. a rotating shaft; 9. a handle is rotated; 10. a rotating cylinder; 11. inserting holes; 12. a coil spring; 13. a screen frame; 14. an anti-collision barrel.
Detailed Description
The technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings.
Examples
Referring to fig. 1 and 3, a building construction foundation pit guard rail comprises a guard rail body 1, wherein the guard rail body 1 comprises a base 101, a cross bar 102 and two vertical bars 103 which are parallel to each other. In this embodiment, the base 101, the cross bar 102 and the vertical bar 103 are made of high strength steel, and have good impact resistance. An anti-collision barrel 14 is arranged between the cross rod 102 and the base 101, and two ends of the anti-collision barrel 14 are respectively rotatably connected with the cross rod 102 and the base 101 and used for buffering impact force when a vehicle collides with the guard rail body 1. The area that base 101, horizontal pole 102 and two montants 103 enclose is provided with prevents weighing down arresting net 2, prevents weighing down arresting net 2 and welds stainless steel screen frame 13 along its edge, in this embodiment, prevents weighing down arresting net 2 and is woven by high strength wire rope and nylon and form.
With reference to fig. 3 and 4, the base 101, the cross bar 102 and the vertical bar 103 are provided with the slots 5 on the same side along the length direction thereof, and the base 101, the cross bar 102 and the vertical bar 103 are rotatably connected with the rotating rod 4 through bearings along the length direction thereof. The rotating rod 4 is sleeved with a coil spring 12, one end of the coil spring 12 is in bolted connection with the rotating rod 4, and the other end of the coil spring 12 is in bolted connection with the protective guard body 1. Prevent weighing down block net 2 and pass fluting 5 through stay cord 3 and weld with dwang 4 in the base 101, the dwang 4 in the horizontal pole 102 and the dwang 4 in the montant 103 respectively, in this embodiment, stay cord 3 is the cable wire, and stay cord 3 keeps away from the one end of dwang 4 and welds mutually with stainless steel framework 13. The pull rope 3 is respectively wound on the base 101, the cross rod 102 and the vertical rod 103 in a rotating mode, and when the joint of the pull rope 3 and the anti-falling arresting net 2 is close to the protective guard body 1, the anti-falling arresting net 2 is tightly attached to the protective guard body 1. When the connection part of the pull rope 3 and the anti-falling arresting net 2 is far away from the protective guard body 1, the anti-falling arresting net 2 and the protective guard body 1 form an anti-falling space.
Referring to fig. 3 and 5, a first bevel gear 6 is coaxially fixed at both ends of each rotating rod 4, and the first bevel gears 6 at the ends of two adjacent rotating rods 4 close to each other are engaged with each other. The rotating rod 4 in the vertical rod 103 is provided with a gear commutator 7, the gear commutator 7 comprises a second bevel gear 701 and a third bevel gear 702, the second bevel gear 701 and the third bevel gear 702 are meshed with each other, and the axes of the second bevel gear 701 and the third bevel gear 702 are perpendicular to each other. The second bevel gear 701 is coaxially fixed on the rotating rod 4 in the vertical rod 103, and a rotating shaft 8 which penetrates through the vertical rod 103 and is coaxially fixed with the third bevel gear 702 is rotatably connected to one side surface of the vertical rod 103 departing from the slot 5.
With reference to fig. 1 and 2, an insertion hole 11 is formed in one end of the rotating shaft 8, which penetrates through the vertical rod 103, along the axis of the rotating shaft, the cross section of the insertion hole 11 is hexagonal, and a rotating handle 9 with the same hexagonal cross section is inserted into the insertion hole 11. Meanwhile, the rotating handle 9 is L-shaped, and the rotating barrel 10 is sleeved on the rod body of the rotating handle 9 parallel to the rotating shaft 8, so that the rotating handle 9 can be conveniently rotated by constructors.
The specific working process is as follows: the base 101 of the protective guard body 1 is connected to the ground above a foundation pit or poured on the ground above the foundation pit through foundation bolts, when a vehicle is in an accident or runs near the edge, the vehicle rushes towards the protective guard body 1 and collides with the anti-collision barrel 14, and when the impact force of the vehicle is not high, the anti-collision barrel 14 can effectively block the vehicle.
When the impact force of the vehicle is high and the anti-collision barrel 14 is knocked away, the anti-falling blocking net is knocked to the anti-falling blocking net, and the anti-falling blocking net moves away from the protective guard body 1 under the action of the impact force of the vehicle. In the process, the anti-falling blocking net pulls the pull rope 3 out of the rotating rod 4 in the base 101, the rotating rod 4 in the cross rod 102 and the rotating rod 4 in the vertical rod 103 respectively, meanwhile, the coil spring 12 generates elastic deformation to prevent the rotating rod 4 from continuing to rotate, the resistance of the pull rope 3 which rotates and is pulled out from the rotating rod 4 is increased, and therefore the impact of a vehicle on the anti-falling blocking net 2 is further reduced.
When the pull ropes 3 respectively wound on the base 101, the cross rod 102 and the vertical rod 103 are completely pulled out, the anti-falling blocking net and the protective guard body 1 form an anti-falling space of a vehicle through the pull ropes 3, the vehicle rushes into the anti-falling space, and the probability that the vehicle knocks off the protective guard body 1 and rushes into a foundation pit is reduced.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. A building construction foundation pit protective fence comprises a protective fence body (1), wherein the protective fence body (1) comprises a base (101), a cross rod (102) and two vertical rods (103) which are parallel to each other, the two vertical rods (103) are vertically connected to the base (101), one end, far away from the base (101), of the cross rod (102) is vertically connected with the vertical rods (103), the protective fence is characterized in that the base (101) is fixedly connected to the ground, an anti-falling blocking net (2) is arranged in an area defined by the base (101), the cross rod (102) and the two vertical rods (103), the anti-falling blocking net (2) is respectively connected with the base (101), the cross rod (102) and the vertical rods (103) through a plurality of pull ropes (3), and the pull ropes (3) are respectively wound on the base (101), the cross rod (102) and the vertical rods (103), when the connection part of the pull rope (3) and the anti-falling arresting net (2) is close to the guard rail body (1), the anti-falling arresting net (2) is tightly attached to the guard rail body (1), when the connection part of the pull rope (3) and the anti-falling arresting net (2) is far away from the guard rail body (1), the anti-falling arresting net (2) and the guard rail body (1) form an anti-falling space, an anti-collision barrel (14) is arranged between the cross rod (102) and the base (101), two ends of the anti-collision barrel (14) are respectively rotatably connected with the cross rod (102) and the base (101), a rotating rod (4) is rotatably connected inside the base (101), the cross rod (102) and the vertical rod (103), and grooves (5) for the pull rope (3) to pass through are arranged on the same sides of the base (101), the cross rod (102) and the vertical rod (103), stay cord (3) are kept away from prevent weighing down the one end of arresting net (2) with dwang (4) fixed connection, every the both ends of dwang (4) are all coaxial fixed with first bevel gear (6), adjacent two dwang (4) are close to first bevel gear (6) intermeshing of one end mutually, dwang (4) are gone up and have been cup jointed spring (12), the one end of spring (12) with dwang (4) can be dismantled and be connected, the other end of spring (12) with the connection can be dismantled in rail guard body (1).
2. The building construction foundation pit protective fence according to claim 1, characterized in that a gear reverser (7) is arranged on a rotating rod (4) in the vertical rod (103), the gear reverser (7) comprises a second bevel gear (701) and a third bevel gear (702), the second bevel gear (701) and the third bevel gear (702) are meshed with each other, the axes of the second bevel gear and the third bevel gear are perpendicular to each other, the second bevel gear (701) is coaxially fixed on the rotating rod (4) in the vertical rod (103), and a side surface of the vertical rod (103) deviating from the slot (5) is rotatably connected with a rotating shaft (8) which penetrates through the vertical rod (103) and is coaxially fixed with the third bevel gear (702).
3. The building construction foundation pit protective fence according to claim 2, wherein a rotating handle (9) is arranged at one end of the rotating shaft (8) penetrating through the vertical rod (103), the rotating handle (9) is L-shaped, and a rotating cylinder (10) is sleeved on a rod body of the rotating handle (9) parallel to the rotating shaft (8).
4. The building construction foundation pit protective fence according to claim 3, wherein one end of the rotating shaft (8) penetrating through the vertical rod (103) is provided with an inserting hole (11) along the axis thereof, and the rotating handle (9) is inserted and matched with the inserting hole (11).
5. The building construction foundation pit protective fence according to claim 1, wherein the anti-falling barrier net (2) is provided with a net frame (13) along the edge thereof, and one end of the pull rope (3) far away from the protective fence body (1) is fixedly connected with the net frame (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632517.5A CN110388078B (en) | 2019-07-13 | 2019-07-13 | Building construction foundation pit rail guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632517.5A CN110388078B (en) | 2019-07-13 | 2019-07-13 | Building construction foundation pit rail guard |
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| Publication Number | Publication Date |
|---|---|
| CN110388078A CN110388078A (en) | 2019-10-29 |
| CN110388078B true CN110388078B (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910632517.5A Active CN110388078B (en) | 2019-07-13 | 2019-07-13 | Building construction foundation pit rail guard |
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|---|---|
| CN110388078A (en) | 2019-10-29 |
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Inventor after: Zhao Qingshan Inventor after: Wang Yujiang Inventor after: Zhao Yongping Inventor after: Yang Liu Inventor before: Yang Liu |
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Effective date of registration: 20230627 Address after: 710000, No. 10808, 8th Floor, Unit 1, Building 26, Xi'an Shouchuang International City, Fengcheng 11th Road to Fengcheng 12th Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee after: Shaanxi Chengju Industrial Group Co.,Ltd. Address before: 623099 47 East Street, Weizhou Town, Wenchuan County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan province (Minyu Hotel) Patentee before: JIBANG CONSTRUCTION GROUP CO.,LTD. |