CN110952791A - Liftable formula safety barrier device - Google Patents
Liftable formula safety barrier device Download PDFInfo
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- CN110952791A CN110952791A CN201911104260.2A CN201911104260A CN110952791A CN 110952791 A CN110952791 A CN 110952791A CN 201911104260 A CN201911104260 A CN 201911104260A CN 110952791 A CN110952791 A CN 110952791A
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- guardrail
- movable
- fixed
- barrier
- adjacent
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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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- 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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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides a liftable safety guardrail device, which adopts a protective guardrail and a guardrail height locking mechanism which are arranged between adjacent fixed stand columns, wherein the protective guardrail comprises a fixed guardrail and a movable guardrail, the movable guardrail is arranged above the fixed guardrail, the height of the movable guardrail can be adjusted as required, when the operations such as soil taking, soil digging and the like are carried out on the edge of a foundation pit and a trestle, the installed guardrail device is not required to be disassembled for providing an operation space for normal use of mechanical equipment, and only when the movable guardrail is required to be reduced to the required height, the movable guardrail can be locked on the fixed stand columns by using the guardrail height locking mechanism; in the operation process of mechanical equipment, the movable guardrail with the reduced height can still keep the function of the guardrail; after the operation of mechanical equipment is finished, the normal height of the movable guardrail can be quickly, conveniently and safely recovered, so that the condition that no guardrail faces the edge operation is effectively avoided, and the safety risk of the edge operation is reduced.
Description
Technical Field
The invention relates to the field of safety protection, in particular to a liftable safety barrier device.
Background
The protective railing on the side of the foundation pit in the construction site is generally erected in a steel pipe fastener mode, a setting product is adopted when the standard of civilized construction is a little higher, the height of the railing is about 1.2m-1.8m, and a fixed height mode is adopted, so that daily common protection can be basically met.
But when having operations such as borrow, dig on foundation ditch limit, landing stage, fixed high formula railing often leads to the railing of installing to be demolishd because of the high mechanical equipment that can hinder of protection railing height, causes the safeguard procedures disappearance at this position, and the high altitude faces limit safety risk greatly increased. According to incomplete statistics, the safety accidents caused by the high-altitude side of the building engineering safety death accidents in China account for more than 50 percent.
Therefore, how to provide a simple and convenient, height-adjustable, but reuse's liftable formula safety barrier device, effectively solve because of mechanical equipment operation needs reduce the railing height temporarily, the railing that reduces in the operation process can keep the guardrail effect, can be fast afterwards, convenient, the normal height of safe recovery railing again, effectively avoid not having the guardrail and face the limit operating condition, reduce and face limit operation safety risk, the technical problem that the building construction field need further perfect the optimization has become.
Disclosure of Invention
The invention aims to provide a liftable safety guardrail device, which effectively solves the problem that the height of a guardrail is temporarily reduced due to the operation requirement of mechanical equipment, the lowered guardrail can keep the guardrail function in the operation process, the normal height of the guardrail can be quickly, conveniently and safely restored afterwards, the operation state without the guardrail and the operation state with the adjacent edge can be effectively avoided, and the safety risk of the operation with the adjacent edge can be reduced.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a liftable formula safety barrier device, is including setting up protection guardrail and the high locking mechanical system of guardrail between adjacent fixed post, protection guardrail includes fixed guardrail and movable guardrail, movable guardrail set up in the top of fixed guardrail, movable guardrail's height can be adjusted, the high locking mechanical system of guardrail can lock movable guardrail on the fixed post for movable guardrail keeps required high position.
Preferably, in foretell liftable formula safety barrier device, guardrail height locking mechanical system includes bolt and nut, set up vertical spout on the fixed post, the activity guardrail shelves of putting up are equipped with horizontal spout, the shank of bolt wears in proper order behind vertical spout of fixed post, the horizontal spout of activity guardrail via the nut locking.
Preferably, in foretell liftable formula safety barrier device, movable guardrail shelves of going up adopts the channel-section steel, the channel-section steel includes tank bottom and both sides wall, movable guardrail shelves of going up open side down sets up, movable guardrail correspond on the both sides wall and offer horizontal spout.
Preferably, in foretell liftable formula safety barrier device, fixed stand adopts the channel-section steel, the channel-section steel includes tank bottom and both sides wall, fixed stand the tank bottom towards movable guardrail shelves setting up on, fixed stand set up on the tank bottom vertical spout is seted up.
Preferably, in foretell liftable formula safety barrier device, movable guardrail includes movable guardrail upper rail and a plurality of connecting rod, the connecting rod parallel arrangement is between movable guardrail upper rail and the upper end of fixed guardrail, the upper end of connecting rod is articulated with movable guardrail upper rail respectively, the lower extreme of connecting rod is articulated with the upper end of fixed guardrail respectively.
Preferably, in the liftable safety barrier device, the movable barrier upper rail is a channel steel, the channel steel comprises a groove bottom and two side walls, the movable barrier upper rail is provided with a downward opening, the fixed barrier comprises a fixed barrier upper rail, the fixed barrier upper rail comprises a base and a protrusion, the protrusion is arranged above the middle part of the base, a through hole for arranging a pin shaft is correspondingly arranged at the lower end of the connecting rod adjacent to the fixed barrier and the protrusion, the lower end of the connecting rod is arranged at the outer side of the protrusion through the pin shaft, through holes for arranging the pin shaft are correspondingly arranged on the two side walls of the movable barrier, a through hole for arranging the pin shaft is arranged at the upper end of the connecting rod adjacent to the movable barrier upper rail, the upper end of the connecting rod is arranged at the inner side of the side wall of the movable barrier upper rail through the pin shaft, when the movable barrier upper rail, the movable guardrail upper rail can cover the fixed guardrail upper rail, and the connecting rod and the pin shaft are located in a space enclosed by the movable guardrail upper rail and the fixed guardrail upper rail.
Preferably, in the above liftable safety barrier device, the two rows of the connecting rods are respectively located at two sides of the protrusion.
Preferably, in foretell liftable formula safety barrier device, movable guardrail includes movable guardrail shelves, middle horizontal pole and a plurality of connecting rod on, middle horizontal pole is located movable guardrail shelves and fixed guardrail between, movable guardrail shelves and middle horizontal pole and fixed guardrail and middle horizontal pole between be equipped with a plurality of connecting rods that parallel through the articulated mode respectively, and upper and lower adjacent connecting rod articulates in the same department of middle horizontal pole, and upper and lower adjacent connecting rod constitutes an isosceles triangle or collineation in plumb line with the plumb line.
Preferably, in foretell liftable formula safety barrier device, the activity guardrail includes horizontal pole in the middle of two above, horizontal pole equidistant set up in the middle of two above between the activity guardrail shelves and the fixed guardrail, the activity guardrail shelves and adjacent middle between the horizontal pole, between the horizontal pole in the middle of adjacent and fixed guardrail and adjacent middle between the horizontal pole respectively through articulated mode be equipped with a plurality of connecting rods that parallel, upper and lower adjacent connecting rod articulate in the same department of middle horizontal pole, upper and lower adjacent connecting rod and plumb line constitute an isosceles triangle or collineation in the plumb line.
Preferably, in foretell liftable formula safety barrier device, movable guardrail still includes a plurality of parallel equidistance's reverse connecting rod each other, reverse connecting rod's upper end is articulated with movable guardrail upper rail respectively, reverse connecting rod's lower extreme is articulated with fixed guardrail's upper end respectively, the connecting rod with reverse connecting rod cross arrangement, and the crossing department of connecting rod and reverse connecting rod is articulated.
Preferably, in foretell liftable formula safety barrier device, guardrail height locking mechanical system includes lead screw, nut and ends the commentaries on classics piece, set up vertical spout on the stationary mast, the movable guardrail shelves of going up is equipped with horizontal spout, the one end of lead screw with end a commentaries on classics piece fixed connection, the other end of lead screw is worn in proper order behind vertical spout, the movable guardrail shelves of stationary mast horizontal spout the nut is fixed, it is located to end the commentaries on classics piece the inside of stationary mast, the stationary mast can restrict end the commentaries on classics piece rotates at the inside axial lead of lead screw of stationary mast.
Preferably, in foretell liftable formula safety barrier device, the rotation stopping block is the rectangular block of a vertical setting, the size of rotation stopping block satisfies: l > ═ B +4 and A < ═ B-4, wherein, L stands for the diagonal size of the anti-rotation block, A stands for the transverse width of the anti-rotation block, B stands for the distance between the inner walls of two side surfaces adjacent to the surface of the fixed upright post and the vertical chute.
According to the technical scheme disclosed above, compared with the prior art, the invention has the following beneficial effects:
the liftable safety guardrail device provided by the invention has the advantages of simplicity, convenience, adjustable height and reusability, and can be used for locking a movable guardrail on a fixed upright post by adopting the protective guardrail and the guardrail height locking mechanism which are arranged between adjacent fixed upright posts, wherein the protective guardrail comprises the fixed guardrail and the movable guardrail, the movable guardrail is arranged above the fixed guardrail, the height of the movable guardrail can be adjusted as required, when the operations such as soil taking, soil digging and the like are carried out on the edge of a foundation pit and a trestle, the installed guardrail device is not required to be detached for providing an operation space for normal use of mechanical equipment, and the movable guardrail is only required to be lowered to the required height and can be locked on the fixed upright posts by using the guardrail height locking mechanism; in the operation process of mechanical equipment, the movable guardrail with the reduced height can still keep the function of the guardrail; after the operation of mechanical equipment is finished, the normal height of the movable guardrail can be quickly, conveniently and safely recovered, so that the condition that no guardrail faces the edge operation is effectively avoided, and the safety risk of the edge operation is reduced.
Drawings
Fig. 1 is a schematic structural view of a liftable safety barrier apparatus according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a guardrail height locking mechanism according to one embodiment of the invention;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic view of a movable guard rail according to a first embodiment of the present invention before being folded;
FIG. 5 is a schematic view of a folded movable fence according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a guardrail height locking mechanism in a second embodiment of the invention;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a cross-sectional view taken along line 1-1 of FIG. 7;
FIG. 9 is a schematic view of the structure of the stop block when the stop block is restricted by the fixed post;
FIG. 10 is a schematic view of a liftable safety barrier apparatus according to a third embodiment of the present invention;
in the figure: 1-fixed upright post, 11-vertical chute, 2-fixed guardrail, 21-fixed guardrail upper stop, 211-base, 212-protrusion, 22-fixed guardrail vertical rod, 3-movable guardrail, 31-movable guardrail upper stop, 311-horizontal chute, 32-connecting rod, 33-pin shaft, 34-middle cross rod, 4-guardrail height locking mechanism, 41-bolt, 42-nut, 43-hand-held wheel, 44-screw rod and 45-rotation stopping block.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. The technical contents and features of the present invention will be described in detail below with reference to the embodiments illustrated in the accompanying drawings. It is further noted that the drawings are in greatly simplified form and are not to precise scale, merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
Referring to fig. 1 to 5, the embodiment discloses a liftable safety barrier device, which includes a protection barrier and a barrier height locking mechanism 4, the protection barrier includes a fixed barrier 2 and a movable barrier 3, the movable barrier 3 is disposed above the fixed barrier 2, the height of the movable barrier 3 can be adjusted, and the barrier height locking mechanism 4 can lock the movable barrier 3 on the fixed column 1, so that the movable barrier 3 can maintain a required height position.
The liftable safety guardrail device provided by the invention has the advantages of simplicity, convenience, adjustable height and reusability, and the protection guardrail and the guardrail height locking mechanism 4 are arranged between the adjacent fixed upright posts 1, the protection guardrail comprises the fixed guardrail 2 and the movable guardrail 3, the movable guardrail 3 is arranged above the fixed guardrail 2, the height of the movable guardrail 3 can be adjusted according to needs, when soil taking, soil digging and other operations are carried out on the sides of a foundation pit and a trestle, the installed guardrail device is not required to be dismantled for providing an operation space for normal use of mechanical equipment, and only when the movable guardrail 3 is required to be lowered to the required height, the movable guardrail 3 can be locked on the fixed upright posts 1 by using the guardrail height locking mechanism 4; in the operation process of mechanical equipment, the movable guardrail 3 with the reduced height can still keep the function of the guardrail; after the mechanical equipment operation is finished, the normal height of the movable guardrail 3 can be quickly, conveniently and safely recovered, so that the condition that no guardrail faces the edge operation is effectively avoided, and the safety risk of the edge operation is reduced.
Preferably, in the above liftable safety barrier device, the barrier height locking mechanism 4 includes a bolt 41 and a nut 42, a vertical sliding groove 11 is provided on the fixed upright 1, the movable barrier upper rail 31 is provided with a horizontal sliding groove 311, and a bolt 41 rod of the bolt 41 sequentially penetrates through the vertical sliding groove 11 of the fixed upright 1 and the horizontal sliding groove 311 of the movable barrier 3 and then is locked by the nut 42. The guardrail height locking mechanism 4 adopting the structure has the advantages that the bolts 41 and the nuts 42 can move along the vertical sliding grooves 11 in a loosening state, and the transverse sliding grooves 311 move relative to the bolts 41, so that the movable guardrail 3 can be adjusted in a stepless mode, the height setting requirements of guardrail devices under different working conditions are met, and the adjustment is very convenient.
Preferably, in the above-mentioned liftable safety barrier apparatus, a hand-held wheel 43 is disposed at an outer side of the nut 42, so that a constructor can conveniently rotate the nut 42.
Preferably, in foretell liftable formula safety barrier device, movable guardrail 3 includes movable guardrail and a plurality of connecting rod 32, connecting rod 32 parallel arrangement is between movable guardrail upper rail 31 and fixed guardrail 2's upper end, the upper end of connecting rod 32 is articulated with movable guardrail upper rail 31 respectively, the lower extreme of connecting rod 32 is articulated with fixed guardrail 2's upper end respectively. The principle is that the connecting rod 32 is arranged in a hinged mode, so that the movable guardrail 3 forms a geometric variable system in the height direction, the lateral direction of the movable guardrail 3 still keeps a stress system, and the top surface elevation of the upper rail 31 of the movable guardrail is adjusted by controlling the inclination angle of the connecting rod 32. When the top surface elevation of the movable guardrail upper rail 31 reaches the ideal height, the movable guardrail upper rail 31 is limited by the guardrail height locking mechanism 4, so that the movable guardrail upper rail 31 forms a geometric invariant system in the height direction.
Preferably, in foretell liftable formula safety barrier device, movable guardrail top rail 31 adopts the channel-section steel, the channel-section steel includes tank bottom and both sides wall, movable guardrail top rail 31 opening sets up downwards, movable guardrail 3 the correspondence is seted up on the both sides wall horizontal spout 311. The fixed stand 1 adopts the channel-section steel, the channel-section steel includes tank bottom and both sides wall, fixed stand 1 the tank bottom towards movable guardrail shelves 31 sets up, fixed stand 1 set up on the tank bottom vertical spout 11.
Preferably, in the above liftable safety barrier device, the movable guardrail upper rail 31 is a channel steel, the channel steel comprises a groove bottom and two side walls, the movable guardrail upper rail 31 is arranged with a downward opening, the fixed guardrail 2 comprises a fixed guardrail upper rail 21, the fixed guardrail upper rail 21 comprises a base 211 and a protrusion 212, the protrusion 212 is arranged above the middle part of the base 211, through holes for arranging the pin shaft 33 are correspondingly arranged at the lower end of the connecting rod 32 adjacent to the fixed guardrail 2 and the protrusion 212, the lower end of the connecting rod 32 is arranged outside the protrusion 212 through the pin shaft 33, through holes for arranging the pin shaft 33 are correspondingly arranged on the two side walls of the movable guardrail upper rail 31, through holes for arranging the pin shaft 33 are arranged at the upper end of the connecting rod 32 adjacent to the movable guardrail upper rail 31, the upper end of the connecting rod 32 is arranged inside the side wall of the movable guardrail upper rail through the pin shaft 33, when the movable guardrail upper rail 31 is adjusted to the lowest state, the movable guardrail upper rail 31 can cover the fixed guardrail upper rail 21, and the connecting rod 32 and the pin shaft 33 are located in a space surrounded by the movable guardrail upper rail 31 and the fixed guardrail upper rail 21. Therefore, the connecting rod 32 and the pin shaft 33 can be hidden and protected, particularly in the process of digging, the soil in the bucket of the excavator can be effectively prevented from falling into the liftable safety barrier device, and the reliable operation of the liftable safety barrier device is guaranteed; meanwhile, the rigidity of the top of the lifting type safety barrier device can be effectively enhanced, and deformation damage caused by equipment collision to the lifting type safety barrier device is reduced.
Preferably, in the above liftable safety barrier device, the two rows of connecting rods 32 are respectively located on two sides of the protrusion 212, so that the connecting strength between the upper rail 31 of the movable guardrail and the upper rail 21 of the fixed guardrail can be improved, the overall strength of the liftable safety barrier device is improved, and the stress performance of the liftable safety barrier device in the lateral direction is improved.
Preferably, in the above mentioned liftable safety barrier device, the horizontal sliding groove of the movable barrier upper rail 31 is located above the hinge pin of the movable barrier upper rail 31 and the adjacent connecting rod, so that the two do not affect their respective functions.
When the movable guardrail 3 is higher, have sufficient intensity in order to guarantee that the movable guardrail 3 can be in foretell liftable formula safety barrier device, add middle horizontal pole 34, that is to say, movable guardrail 3 includes movable guardrail and goes up shelves 31, middle horizontal pole 34 and a plurality of connecting rod 32, middle horizontal pole 34 is located between movable guardrail and the fixed guardrail 2, be equipped with a plurality of connecting rods 32 that parallel through the articulated mode respectively between shelves 31 and the middle horizontal pole 34 and between fixed guardrail 2 and the middle horizontal pole 34 on the movable guardrail, upper and lower adjacent connecting rod 32 articulates in the same department of middle horizontal pole 34, and upper and lower adjacent connecting rod 32 constitutes an isosceles triangle or collineation in plumb line with the plumb line.
When the movable guardrail 3 is higher, in order to guarantee that the movable guardrail 3 has sufficient intensity, can add horizontal pole 34 in the middle of two above in foretell liftable formula safety barrier device, that is to say, movable guardrail 3 includes horizontal pole 34 in the middle of two above, horizontal pole 34 equidistant set up in between movable guardrail upper stop 31 and fixed guardrail 2, movable guardrail upper stop 31 and adjacent middle horizontal pole 34 between, between adjacent middle horizontal pole 34 and fixed guardrail 2 and adjacent middle horizontal pole 34 between be equipped with a plurality of connecting rods 32 that parallel through the articulated mode respectively, upper and lower adjacent connecting rod 32 articulates in the same department of middle horizontal pole 34, and upper and lower adjacent connecting rod 32 constitutes an isosceles triangle or collineation in plumb line with plumb line.
Preferably, in foretell liftable formula safety barrier device, movable guardrail 3 still includes a plurality of reverse connecting rods that are parallel to each other equidistance, reverse connecting rod's upper end is articulated with movable guardrail upper rail 31 respectively, reverse connecting rod's lower extreme is articulated with fixed guardrail 2's upper end respectively, connecting rod 32 with reverse connecting rod cross arrangement, and connecting rod 32 is articulated with the crossing department of reverse connecting rod.
The construction method, namely the using method, of the liftable safety barrier device comprises the following steps:
firstly, mounting a liftable safety barrier device on a construction site;
secondly, loosening the guardrail height locking mechanism 4, and adjusting the height of the movable guardrail 3 according to the requirement;
and thirdly, locking a guardrail height locking mechanism 4 to lock the movable guardrail 3 on the fixed upright post 1, so that the movable guardrail 3 keeps the required height position.
Example two
Referring to fig. 6 to 9, the difference between the present embodiment and the first embodiment is:
guardrail height locking mechanical system includes lead screw 44, nut 42 and end commentaries on classics piece 45, set up vertical spout 11 on the stationary mast, the movable guardrail is gone up shelves 31 and is equipped with horizontal spout 311, the one end of lead screw 44 with end commentaries on classics piece 45 fixed connection, the other end of lead screw 44 is worn in proper order and is passed through behind vertical spout 11 of stationary mast 1, the horizontal spout 311 of movable guardrail upper shelves 31 via nut 42 is fixed, end commentaries on classics piece 45 is located stationary mast 1's inside, stationary mast 1 can restrict end commentaries on classics piece 45 rotates at the inside axial lead around lead screw 44 of stationary mast 1.
The rotation stopping block, on the one hand, can be used as a limiting device for preventing the screw rod 44 from sliding out of the vertical sliding groove, namely, limiting the transverse movement of the screw rod 44. On the other hand, when the nut is screwed, because the fixed upright post can limit the rotation of the rotation stopping block 45 around the axial lead of the screw rod 44 in the fixed upright post 1, the nut which rotates at the moment can enable the nut to move along the screw rod 44, when the nut 42 moves on the screw rod 44 to the rotation stopping block 45, the movable guardrail upper stop 31 is locked on the fixed upright post 1, and when the nut moves on the screw rod 44 away from the rotation stopping block 45, the movable guardrail upper stop 31 is loosened from the fixed upright post 1.
In order to facilitate the placement of the rotation stopping block 45 in the fixed upright and to achieve the function that the fixed upright 1 can limit the rotation of the rotation stopping block 45 around the axial lead of the lead screw 44 inside the fixed upright 1, preferably, in the liftable safety barrier device, the rotation stopping block 45 is a vertically arranged rectangular block, and the size of the rotation stopping block 45 satisfies the following requirements: l > -B + 4 and a < ═ B-4, where L represents the diagonal dimension of the anti-rotation block 45, a represents the transverse width of the anti-rotation block 45, and B represents the distance between the inner walls of the two sides of the fixed upright 1 adjacent to the surface where the vertical runner is located. When the nut 42 is screwed, the screw rod 44 is firstly driven to rotate, the screw rod 44 rotates to drive the rotation stopping block 45 to rotate around the center of the screw rod 44, because the overall dimension of the rotation stopping block meets the above condition, when the rotation stopping block 45 rotates to a certain angle, the square corner of the rotation stopping block 45 rotates to the inner wall of the fixed upright post 1, so as to limit the rotation stopping block to continue rotating, and further limit the rotation of the screw rod 44, at the moment, the nut 42 moves along the screw rod 44 by rotating the nut 42, when the nut 42 moves to the rotation stopping block 45 on the screw rod 44, the movable guardrail upper stop 31 is locked on the fixed upright post 1, when the nut 42 moves on the screw rod 44 away from the rotation stopping block 45, the movable guardrail upper stop 31 is loosened from the fixed upright post 1, namely, when the nut 42 is tightened along the screw rod 44, the movable guardrail upper stop 31 is fixed, and when the nut 42 is loosened along the outside of the screw rod 44, playing the role of loosening the movable guardrail upper stop 31.
In addition, in this embodiment, owing to can stop through fixed stand 1 limit that the piece 45 that changes rotates, do not need constructor to go solid fixed screw 44, consequently, fixed stand 1 can also choose for use the square steel except choosing for use the channel-section steel to provide the stability that effectively improves fixed stand 1, and then promote the reliability of whole liftable formula safety barrier device.
The liftable safety guardrail device provided by the invention has the advantages of simplicity, convenience, adjustable height and reusability, and the protection guardrail and the guardrail height locking mechanism 4 are arranged between the adjacent fixed upright posts 1, the protection guardrail comprises the fixed guardrail 2 and the movable guardrail 3, the movable guardrail 3 is arranged above the fixed guardrail 2, the height of the movable guardrail 3 can be adjusted according to needs, when soil taking, soil digging and other operations are carried out on the sides of a foundation pit and a trestle, the installed guardrail device is not required to be dismantled for providing an operation space for normal use of mechanical equipment, and only when the movable guardrail 3 is required to be lowered to the required height, the movable guardrail 3 can be locked on the fixed upright posts 1 by using the guardrail height locking mechanism 4; in the operation process of mechanical equipment, the movable guardrail 3 with the reduced height can still keep the function of the guardrail; after the mechanical equipment operation is finished, the normal height of the movable guardrail 3 can be quickly, conveniently and safely recovered, so that the condition that no guardrail faces the edge operation is effectively avoided, and the safety risk of the edge operation is reduced.
EXAMPLE III
Referring to fig. 10, the difference between the present embodiment and the first embodiment is:
the movable guardrail 3 comprises a movable guardrail upper rail 31, a middle cross rod 34 and a plurality of connecting rods 32, the middle cross rod 34 is located between the movable guardrail upper rail 31 and the fixed guardrail 2, a plurality of parallel connecting rods 32 are respectively arranged between the movable guardrail upper rail 31 and the middle cross rod 34 and between the fixed guardrail 2 and the middle cross rod 34 in an articulated mode, the upper and lower adjacent connecting rods 32 are hinged at the same position of the middle cross rod 34, and the upper and lower adjacent connecting rods 32 and a plumb line form an isosceles triangle or are collinear on the plumb line.
This embodiment is through will connecting rod 32 utilizes middle horizontal pole 34 to cut apart between movable guardrail upper shield 31 and the fixed guardrail 2 for connecting rod 32 is showing to shorten, can not need to fold with the help of the side direction space at 3 both ends of movable guardrail, does not influence peripheral guardrail structure. In addition, the strength of the movable guardrail 3 can be improved by additionally arranging the middle cross rod 34, so that the height of the movable guardrail 3 can be increased, and the application range of the liftable safety guardrail device is further improved. Furthermore, because will connecting rod 32 utilizes middle horizontal pole 34 to cut apart between movable guardrail upper rail 31 and the fixed guardrail 2, need not fold with the help of the side direction space at movable guardrail 3 both ends, consequently, need not set up horizontal spout 311 on movable guardrail upper rail 31, only need set up the through-hole can.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. The utility model provides a liftable formula safety barrier device, its characterized in that, is including setting up protection guardrail and the high locking mechanical system of guardrail between adjacent fixed post, protection guardrail includes fixed guardrail and movable guardrail, movable guardrail set up in the top of fixed guardrail, movable guardrail's height can be adjusted, the high locking mechanical system of guardrail can lock movable guardrail on the fixed post for movable guardrail keeps required high position.
2. The liftable safety barrier device according to claim 1, wherein the barrier height locking mechanism comprises a bolt and a nut, a vertical sliding groove is formed on the fixed upright, a transverse sliding groove is formed on the movable barrier, and a bolt rod of the bolt is sequentially inserted through the vertical sliding groove of the fixed upright and the transverse sliding groove of the movable barrier and then locked by the nut.
3. The liftable safety barrier device according to claim 2, wherein the movable barrier is a channel steel, the channel steel comprises a groove bottom and two side walls, the opening of the movable barrier upper rail is downward, and the two side walls of the movable barrier are correspondingly provided with the transverse sliding grooves.
4. The liftable safety barrier device according to claim 2, wherein the movable barrier comprises an upper movable barrier and a plurality of connecting rods, the connecting rods are arranged in parallel between the upper movable barrier and the upper end of the fixed barrier, the upper ends of the connecting rods are respectively hinged with the upper movable barrier, and the lower ends of the connecting rods are respectively hinged with the upper end of the fixed barrier.
5. The liftable safety barrier device according to claim 4, wherein the movable barrier upper rail is a channel steel, the channel steel comprises a groove bottom and two side walls, the opening of the movable barrier upper rail is arranged downwards, the fixed barrier comprises a fixed barrier upper rail, the fixed barrier upper rail comprises a base and a protrusion, the protrusion is arranged above the middle part of the base, a through hole for arranging a pin shaft is correspondingly arranged at the lower end of the connecting rod adjacent to the fixed barrier and the protrusion, the lower end of the connecting rod is arranged outside the protrusion through the pin shaft, through holes for arranging the pin shaft are correspondingly arranged on the two side walls of the movable barrier, a through hole for arranging the pin shaft is arranged at the upper end of the connecting rod adjacent to the movable barrier upper rail, the upper end of the connecting rod is arranged inside the side wall of the movable barrier upper rail through the pin shaft, when the movable guardrail upper gear is adjusted to the lowest state, the movable guardrail upper gear can cover the fixed guardrail upper gear, and the connecting rod and the pin shaft are located in a space enclosed by the movable guardrail upper gear and the fixed guardrail upper gear.
6. The liftable safety barrier apparatus of claim 5, wherein the connecting rods are arranged in two rows, one on each side of the protrusion.
7. The liftable safety barrier device of claim 1, wherein the movable barrier comprises an upper movable barrier rail, a middle cross bar and a plurality of connecting bars, the middle cross bar is located between the upper movable barrier rail and the fixed barrier rail, a plurality of parallel connecting bars are respectively arranged between the upper movable barrier rail and the middle cross bar and between the fixed barrier rail and the middle cross bar in a hinged manner, the connecting bars adjacent to each other up and down are hinged at the same position of the middle cross bar, and the connecting bars adjacent to each other up and down and the plumb line form an isosceles triangle or are collinear with the plumb line.
8. The liftable safety barrier device of claim 7, wherein the movable barrier comprises more than two middle cross bars, the more than two middle cross bars are arranged between the upper guard of the movable barrier and the fixed barrier at equal intervals, a plurality of parallel connecting bars are respectively arranged between the upper guard of the movable barrier and the adjacent middle cross bars, between the adjacent middle cross bars and between the fixed barrier and the adjacent middle cross bars in a hinged manner, the upper and lower adjacent connecting bars are hinged at the same position of the middle cross bars, and the upper and lower adjacent connecting bars and the plumb line form an isosceles triangle or are collinear with the plumb line.
9. The liftable safety barrier device according to claim 1, wherein the barrier height locking mechanism comprises a screw rod, a nut and a rotation stopping block, a vertical sliding groove is formed in the fixed upright, a transverse sliding groove is formed in the upper stop of the movable barrier, one end of the screw rod is fixedly connected with the rotation stopping block, the other end of the screw rod sequentially penetrates through the vertical sliding groove of the fixed upright and the transverse sliding groove of the upper stop of the movable barrier and then is fixed by the nut, the rotation stopping block is located inside the fixed upright, and the fixed upright can limit the rotation stopping block to rotate around the axis of the screw rod inside the fixed upright.
10. The liftable safety barrier device of claim 9, wherein the rotation stopping block is a vertically disposed rectangular block, and the rotation stopping block has a size satisfying: l > ═ B +4 and A < ═ B-4, wherein, L stands for the diagonal size of the anti-rotation block, A stands for the transverse width of the anti-rotation block, B stands for the distance between the inner walls of two side surfaces adjacent to the surface of the fixed upright post and the vertical chute.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911104260.2A CN110952791A (en) | 2019-11-09 | 2019-11-09 | Liftable formula safety barrier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911104260.2A CN110952791A (en) | 2019-11-09 | 2019-11-09 | Liftable formula safety barrier device |
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| Publication Number | Publication Date |
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| CN110952791A true CN110952791A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911104260.2A Pending CN110952791A (en) | 2019-11-09 | 2019-11-09 | Liftable formula safety barrier device |
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| CN (1) | CN110952791A (en) |
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Application publication date: 20200403 |
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