CN113338648A - Security fence for building elevator pit - Google Patents
Security fence for building elevator pit Download PDFInfo
- Publication number
- CN113338648A CN113338648A CN202110676824.0A CN202110676824A CN113338648A CN 113338648 A CN113338648 A CN 113338648A CN 202110676824 A CN202110676824 A CN 202110676824A CN 113338648 A CN113338648 A CN 113338648A
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- Prior art keywords
- rod
- hook
- fence
- safety fence
- top beam
- 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.)
- Pending
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- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000000481 breast Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
- E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
-
- 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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
-
- 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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers 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
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
- E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
- E04G21/3242—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof using clamps
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a safety fence for a building elevator pit, which structurally comprises a safety fence, a stand column, a bottom hooking mechanism, a vertical rod, a top beam mechanism and a night light strip, wherein the bottom hooking mechanism consists of a rod sleeve, a sliding rod groove, a fixed inner ring and a hook rod, the safety fence can prompt danger of construction personnel passing through the safety fence at night by using the night light strip, the bottom hooking mechanism hooks the bottom of a marginal beam to prevent the safety fence from shaking down, the stability of the bottom of the safety fence is improved, the safety fence can be spliced with another safety fence through the stand column to form a square structure, the top beam plate of the safety fence is abutted to the bottom of the beam by using the top beam mechanism, the upper end of the safety fence cannot shake at will, the safety of the safety fence is improved, and the whole device is convenient to install and disassemble.
Description
Technical Field
The invention relates to the field of building protection, in particular to a safety fence for a building elevator pit.
Background
In the building work progress, often need set up safety fence, be used for reminding constructor to notice construction safety, and the elevartor shaft of floor is in the state of fretwork among the building construction process, it is very unsafe, consequently, need protect it, avoid constructor to fall into in the elevartor shaft of floor, current elevartor shaft reinforcement safety fence is the electric welding that welds, the troublesome poeration, and the spark spreads everywhere in the elevartor shaft easily appears in the elevartor shaft limit electric welding of floor, lead to the conflagration that spark sputtering arouses in the floor, and current elevartor shaft safety fence is more difficult when demolising, and waste time and energy, still can cause the damage to safety fence, lead to its life to reduce.
Disclosure of Invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: the utility model provides a building elevator is security fence for hole, its structure includes security fence, stand, end mechanism, pole setting, back timber mechanism, night light strip, security fence control all be equipped with the stand on both ends, security fence and stand swing joint, the security fence rear end on be equipped with two end mechanism that hook side by side, security fence and end mechanism pass through the electric welding, the security fence inboard on be equipped with the pole setting more than two side by side, security fence and pole setting fixed connection, the inside left and right sides of security fence all install back timber mechanism, security fence front end surface have night light strip, security fence and night light strip glue and connect.
As a further optimization of the technical scheme, the hook bottom mechanism comprises a rod sleeve, a sliding rod groove, a fixed inner ring and a hook rod, the sliding rod groove is formed in the surface of the rod sleeve, the fixed inner ring is arranged in the rod sleeve, the rod sleeve is fixedly connected with the fixed inner ring, the hook rod is arranged on the inner side of the rod sleeve, and the rod sleeve is in sliding fit with the hook rod.
As a further optimization of this technical scheme, the gib block still include that operating rod, antiskid hold cover, spring, pull ring, gib head are constituteed, the gib block top on be equipped with the operating rod, gib block and operating rod structure as an organic whole, the operating rod on the surface be equipped with antiskid hold the cover, operating rod and antiskid hold the cover and be connected, the gib block on the surface be equipped with the pull ring, gib block and pull ring fixed connection, the gib block install the spring on the surface, and the spring bottom is connected with the pull ring, gib block bottom have the gib head, gib block and gib head structure as an organic whole.
As a further optimization of the technical scheme, rake teeth are arranged on the surface of the hook head, and the hook head and the rake teeth are of an integrated structure.
As a further optimization of this technical scheme, back timber mechanism constitute by rotatory hand wheel, driving gear, lift ejector pin, rack, back timber dish, rotatory hand wheel one serve and be equipped with the driving gear, rotatory hand wheel and driving gear fixed connection, the driving gear right-hand member on be equipped with the lift ejector pin, the lift ejector pin on the surface be equipped with the rack, lift ejector pin and rack structure as an organic whole, lift ejector pin and driving gear pass through the rack and mesh mutually, lift ejector pin top on be equipped with the back timber dish, lift ejector pin and back timber dish pass through the electric welding and weld.
As a further optimization of the technical scheme, the top surface of the top beam disc is provided with a convex ball resistance pad, and the top beam disc is connected with the convex ball resistance pad in an adhesive manner.
As a further optimization of the technical scheme, the safety fence and the pole sleeve are welded through electric welding.
As a further optimization of the technical scheme, one end of the operating rod and one end of the hook head form a ninety-degree angle, and the operating rod and the hook head are connected through the hook rod.
As a further optimization of the technical scheme, the pull ring is connected with the fixed inner ring through a spring.
As the further optimization of the technical scheme, the convex ball resistance pad is made of rubber materials, is not easy to damage and has large friction resistance.
Advantageous effects
The invention relates to a safety fence for a building elevator pit, which is characterized in that the safety fence is arranged at the edge of an elevator pit to be protected at a floor, the safety fence is erected on the edge of the elevator pit, an operating rod at the left side and the right side of the safety fence is held to be pulled downwards, so that the operating rod drives a hook rod to move downwards in a slide rod groove in a rod sleeve, the hook rod pulls a spring to extend through a fixed inner ring, the operating rod prevents hand sliding by using an anti-skidding holding sleeve and protects the operating rod, the operating rod swings ninety degrees outwards, so that a hook head at the bottom end of the hook rod is abutted against the bottom of an edge beam, the hook head is raked at the bottom of the edge beam by rake teeth, the friction resistance between the hook head and the bottom of the edge beam is increased, slipping is avoided, the hook rod is clamped on a floor by using the hook head and the safety fence, so that the safety fence can not be shaken over, when the safety fence needs to be disassembled, fixed inner ring is pulled back, make the hook lever return the normal position, it is rotatory to drive the driving gear through rotatory hand wheel, the driving gear transmits kinetic energy to the rack, through the rack moving direction of driving gear control, control the lift ejector pin and reciprocate, drive the lift ejector pin and up move, make the lift ejector pin drive the back timber dish and rise to the breast, and support under the breast through the area of contact of back timber dish, let the security fence upper end can not rock at will, the back timber dish still utilizes protruding ball resistance pad to increase the frictional resistance between its and the breast, let the back timber dish can not appear sliding.
Compared with the prior art, the invention has the beneficial effects that: safety fence utilizes the night striation can indicate constructor here danger of process in night, catch on marginal beam bottom through hooking bottom mechanism, make safety fence can not shaken down, increase the stability of safety fence bottom, and safety fence can splice through stand and another safety fence and enclose into a square structure, safety fence utilizes back timber mechanism to support the back timber dish under the roof beam, let the safety fence upper end can not rock at will, increase the safety fence security, and the holistic installation of this equipment is very convenient with the dismantlement.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a safety fence for a building elevator pit according to the invention.
Fig. 2 is a structural schematic diagram of the hook bottom mechanism in a static state.
Fig. 3 is a schematic view of the working structure of the bottom hooking mechanism of the invention.
Fig. 4 is a schematic structural view of the cap mechanism of the present invention.
Fig. 5 is a schematic top view of the header pan of the present invention.
In the figure: the safety fence comprises a safety fence body-1, an upright post-2, a hook bottom mechanism-3, an upright post-4, a top beam mechanism-5, a noctilucent strip-6, a rod sleeve-3 a, a sliding rod groove-3 b, a fixed inner ring-3 c, a hook rod-3 d, an operating rod-3 d1, an anti-slip grip sleeve-3 d2, a spring-3 d3, a pull ring-3 d4, a hook head-3 d5, rake teeth-3 d51, a rotary hand wheel-5 a, a driving gear-5 b, a lifting ejector rod-5 c, a rack-5 d, a top beam disc-5 e and a convex ball resistance pad-5 e 1.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Example 1
Referring to fig. 1-3, the invention provides a safety fence for a building elevator pit, which structurally comprises a safety fence 1, upright posts 2, hook bottom mechanisms 3, upright posts 4, top beam mechanisms 5 and luminous strips 6, wherein the upright posts 2 are arranged at the left end and the right end of the safety fence 1, the safety fence 1 is movably connected with the upright posts 2, the two hook bottom mechanisms 3 are arranged at the rear end of the safety fence 1 side by side, the safety fence 1 and the hook bottom mechanisms 3 are welded through electric welding, more than two upright posts 4 are arranged on the inner side of the safety fence 1 side by side, the safety fence 1 is fixedly connected with the upright posts 4, the top beam mechanisms 5 are arranged at the left side and the right side inside of the safety fence 1, the luminous strips 6 are arranged below the surface of the front end of the safety fence 1, and the luminous strips 6 are connected through glue.
The hook bottom mechanism 3 comprises a rod sleeve 3a, a slide rod groove 3b, a fixed inner ring 3c and a hook rod 3d, the surface of the rod sleeve 3a is provided with the slide rod groove 3b, the inside of the rod sleeve 3a is provided with the fixed inner ring 3c, the rod sleeve 3a is fixedly connected with the fixed inner ring 3c, the inner side of the rod sleeve 3a is provided with the hook rod 3d, and the rod sleeve 3a is in sliding fit with the hook rod 3 d.
Hook 3d still include action bars 3d1, antiskid grip 3d2, spring 3d3, pull ring 3d4, gib head 3d5 and constitute, hook 3d top on be equipped with action bars 3d1, hook 3d and action bars 3d1 be the integral structure, action bars 3d1 be equipped with antiskid grip 3d2 on the surface, action bars 3d1 and antiskid grip 3d2 be connected, hook 3d be equipped with pull ring 3d4 on the surface, hook 3d and pull ring 3d4 fixed connection, hook 3d install spring 3d3 on the surface, and spring 3d3 bottom is connected with pull ring 3d4, hook 3d bottom have gib head 3d5, hook 3d and gib head 3d5 be the integral structure.
Rake teeth 3d51 are arranged on the surface of the hook head 3d5, and the hook head 3d5 and the rake teeth 3d51 are of an integrated structure.
The principle of the embodiment: installing a safety fence 1 on the side of an elevator shaft needing protection of a floor, standing the safety fence 1 on the edge of the elevator shaft, holding operating rods 3d1 on the left side and the right side of the safety fence 1 to pull downwards, enabling the operating rods 3d1 to drive hook rods 3d to move downwards in sliding rod grooves 3b in rod sleeves 3a, enabling the hook rods 3d to pull springs 3d3 to extend through fixing inner rings 3c, enabling the operating rods 3d1 to prevent hands from sliding through anti-sliding holding sleeves 3d2 and protect operating rods 3d1, swinging the operating rods 3d1 to the outside for ninety degrees, enabling hook heads 3d5 at the bottom ends of the hook rods 3d to abut against the edge beam bottom, enabling the hook heads 3d5 to abut against the edge beam bottom through rake teeth 3d51, increasing frictional resistance between the hook heads 3d5 and the edge beam bottom, avoiding slipping, enabling the hook rods 3d5 to be clamped with the safety fence 1 on the floor, enabling the safety fence 1 not to be raked down, and enabling the safety fence 1 to be dismounted when the safety fence 1 needs to shake, after swinging the operating lever 3d1 back ninety degrees, the spring 3d3 pulls the fixed inner ring 3c back by its own elastic force, so that the hook lever 3d returns to the original position.
The method for solving the problems in the embodiment is as follows: safety fence 1 utilizes night light strip 6 can indicate constructor here danger of process in the time of night, catches on marginal beam bottom through hooking bottom mechanism 3 for safety fence 1 can not shaken down, increases the stability of safety fence 1 bottom, and safety fence 1 can splice with another safety fence 1 through stand 2 and enclose into a square structure.
Example 2
Referring to fig. 1 to 5, the invention provides a safety fence for a building elevator pit, wherein a top beam mechanism 5 comprises a rotary hand wheel 5a, a driving gear 5b, a lifting top rod 5c, a rack 5d and a top beam disc 5e, the driving gear 5b is arranged at one end of the rotary hand wheel 5a, the rotary hand wheel 5a is fixedly connected with the driving gear 5b, the lifting top rod 5c is arranged at the right end of the driving gear 5b, the rack 5d is arranged on the surface of the lifting top rod 5c, the lifting top rod 5c and the rack 5d are of an integrated structure, the lifting top rod 5c is meshed with the driving gear 5b through the rack 5d, the top beam disc 5e is arranged at the top end of the lifting top rod 5c, and the lifting top beam disc 5c and the top beam disc 5e are welded through electric welding.
The top end surface of the top beam disc 5e is provided with a convex ball resistance pad 5e1, and the top beam disc 5e is connected with the convex ball resistance pad 5e1 through glue.
Safety fence 1 and pole cover 3a pass through electric welding, action bars 3d1 one end and gib head 3d5 one end form a ninety degree angle, and be connected through gib bar 3d between the two, pull ring 3d4 be connected through spring 3d3 with fixed inner ring 3c, protruding ball resistance pad 5e1 adopt the preparation of rubber material, and not fragile, and frictional resistance is big.
The principle of the embodiment: it is rotatory to drive driving gear 5b through rotatory hand wheel 5a, driving gear 5b transmits kinetic energy to on the rack 5d, through the 5d moving direction of driving gear 5b control rack, it reciprocates to control lift ejector pin 5c, drive lift ejector pin 5c up-shifting, make lift ejector pin 5c drive back timber dish 5e rise to the bottom of the beam, and support under the roof beam through the area of contact of back timber dish 5e, let safety fence 1 upper end can not rock at will, back timber dish 5e still utilizes protruding ball resistance pad 5e1 to increase its and the bottom of the beam friction resistance between, let back timber dish 5e can not appear sliding.
The method for solving the problems in the embodiment is as follows: the safety fence 1 utilizes the top beam mechanism 5 to support the top beam disc 5e below the beam, so that the upper end of the safety fence 1 cannot shake at will, the safety of the safety fence 1 is improved, and the whole installation and the disassembly of the equipment are very convenient.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a building elevator is security fence for hole, its structure includes security fence (1), stand (2), end of hook mechanism (3), pole setting (4), back timber mechanism (5), night light strip (6), its characterized in that: fence (1) control on both ends all be equipped with stand (2), fence (1) and stand (2) swing joint, fence (1) rear end on be equipped with two end mechanism (3) that hook side by side, fence (1) and end mechanism (3) through the electric welding, fence (1) inboard on be equipped with pole setting (4) more than two side by side, fence (1) and pole setting (4) fixed connection, fence (1) inside left and right sides all install back timber mechanism (5), fence (1) front end surface have night light strip (6), fence (1) and night light strip (6) glue joint.
2. A safety fence for a building elevator pit as defined in claim 1, wherein: end of hook mechanism (3) constitute by rod cover (3a), slide bar groove (3b), fixed inner ring (3c), hook rod (3d), rod cover (3a) on the surface be equipped with slide bar groove (3b), rod cover (3a) inside be equipped with fixed inner ring (3c), rod cover (3a) and fixed inner ring (3c) fixed connection, rod cover (3a) inboard on be equipped with hook rod (3d), rod cover (3a) and hook rod (3d) sliding fit.
3. A safety fence for a building elevator pit according to claim 2, characterized in that: the hook rod (3d) also comprises an operating rod (3d1), an anti-skidding grip sleeve (3d2), a spring (3d3), a pull ring (3d4) and a hook head (3d5), the top end of the hook rod (3d) is provided with an operating rod (3d1), the hook rod (3d) and the operating rod (3d1) are of an integrated structure, the surface of the operating rod (3d1) is provided with an anti-skid holding sleeve (3d2), the operating rod (3d1) is connected with the anti-skid holding sleeve (3d2), a pull ring (3d4) is arranged on the surface of the hook rod (3d), the hook rod (3d) is fixedly connected with the pull ring (3d4), a spring (3d3) is arranged on the surface of the hook rod (3d), and the bottom end of the spring (3d3) is connected with the pull ring (3d4), the bottom end of the hook rod (3d) is provided with a hook head (3d5), and the hook rod (3d) and the hook head (3d5) are of an integrated structure.
4. A safety fence for a building elevator pit according to claim 3, characterized in that: rake teeth (3d51) are arranged on the surface of the hook head (3d5), and the hook head (3d5) and the rake teeth (3d51) are of an integrated structure.
5. A safety fence for a building elevator pit as defined in claim 1, wherein: the top beam mechanism (5) consists of a rotary hand wheel (5a), a driving gear (5b), a lifting ejector rod (5c), a rack (5d) and a top beam disc (5e), one end of the rotating hand wheel (5a) is provided with a driving gear (5b), the rotating hand wheel (5a) is fixedly connected with the driving gear (5b), a lifting mandril (5c) is arranged at the right end of the driving gear (5b), a rack (5d) is arranged on the surface of the lifting mandril (5c), the lifting mandril (5c) and the rack (5d) are of an integrated structure, the lifting mandril (5c) and the driving gear (5b) are meshed through the rack (5d), the top end of the lifting ejector rod (5c) is provided with a top beam disc (5e), and the lifting ejector rod (5c) and the top beam disc (5e) are welded through electric welding.
6. A safety fence for a building elevator pit as defined in claim 5, wherein: the top beam disc (5e) is provided with a convex ball resistance pad (5e1) on the top surface, and the top beam disc (5e) is connected with the convex ball resistance pad (5e1) through glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110676824.0A CN113338648A (en) | 2021-06-18 | 2021-06-18 | Security fence for building elevator pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110676824.0A CN113338648A (en) | 2021-06-18 | 2021-06-18 | Security fence for building elevator pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113338648A true CN113338648A (en) | 2021-09-03 |
Family
ID=77476241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110676824.0A Pending CN113338648A (en) | 2021-06-18 | 2021-06-18 | Security fence for building elevator pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113338648A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3946992A (en) * | 1975-02-28 | 1976-03-30 | Dell Holdings Limited | Construction fence post |
| EP0666389A1 (en) * | 1994-02-04 | 1995-08-09 | Müller & Baum GmbH & Co. KG | Guard-rail clamp |
| CN207934587U (en) * | 2018-03-07 | 2018-10-02 | 湖北元邦建筑工程有限公司 | A kind of card wall concertina type guard rail |
| CN208056671U (en) * | 2018-04-17 | 2018-11-06 | 宜昌市汇成建设工程有限公司 | A kind of safe fence for building |
| CN208486578U (en) * | 2018-06-26 | 2019-02-12 | 云南建投第三建设有限公司 | A kind of tool type edge protector fixing piece |
| CN209837741U (en) * | 2018-12-28 | 2019-12-24 | 云南建投第二建设有限公司 | Be used for portable of assembly type structure to face limit protector |
| CN212317536U (en) * | 2020-03-28 | 2021-01-08 | 中建三局第二建设工程有限责任公司 | Simply set up design and face limit safety protection support |
| CN212507714U (en) * | 2020-04-20 | 2021-02-09 | 广东以诺通讯有限公司 | A kind of isolation fence for municipal greening |
| CN212836822U (en) * | 2020-05-27 | 2021-03-30 | 中国建筑第八工程局有限公司 | Hole opening protection device capable of being clamped in advance |
-
2021
- 2021-06-18 CN CN202110676824.0A patent/CN113338648A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3946992A (en) * | 1975-02-28 | 1976-03-30 | Dell Holdings Limited | Construction fence post |
| EP0666389A1 (en) * | 1994-02-04 | 1995-08-09 | Müller & Baum GmbH & Co. KG | Guard-rail clamp |
| CN207934587U (en) * | 2018-03-07 | 2018-10-02 | 湖北元邦建筑工程有限公司 | A kind of card wall concertina type guard rail |
| CN208056671U (en) * | 2018-04-17 | 2018-11-06 | 宜昌市汇成建设工程有限公司 | A kind of safe fence for building |
| CN208486578U (en) * | 2018-06-26 | 2019-02-12 | 云南建投第三建设有限公司 | A kind of tool type edge protector fixing piece |
| CN209837741U (en) * | 2018-12-28 | 2019-12-24 | 云南建投第二建设有限公司 | Be used for portable of assembly type structure to face limit protector |
| CN212317536U (en) * | 2020-03-28 | 2021-01-08 | 中建三局第二建设工程有限责任公司 | Simply set up design and face limit safety protection support |
| CN212507714U (en) * | 2020-04-20 | 2021-02-09 | 广东以诺通讯有限公司 | A kind of isolation fence for municipal greening |
| CN212836822U (en) * | 2020-05-27 | 2021-03-30 | 中国建筑第八工程局有限公司 | Hole opening protection device capable of being clamped in advance |
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Application publication date: 20210903 |
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