CN115306209A - Quickly-folded guardrail and using method thereof - Google Patents

Quickly-folded guardrail and using method thereof Download PDF

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Publication number
CN115306209A
CN115306209A CN202211001871.6A CN202211001871A CN115306209A CN 115306209 A CN115306209 A CN 115306209A CN 202211001871 A CN202211001871 A CN 202211001871A CN 115306209 A CN115306209 A CN 115306209A
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CN
China
Prior art keywords
guardrail
groove
locking
connecting pipe
rod
Prior art date
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Pending
Application number
CN202211001871.6A
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Chinese (zh)
Inventor
黄斌斌
李步宜
陈托
苏立伟
翁自正
方芳
方圆
方丹
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Zhejiang Canaan Technology Ltd
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Zhejiang Canaan Technology Ltd
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Publication date
Application filed by Zhejiang Canaan Technology Ltd filed Critical Zhejiang Canaan Technology Ltd
Priority to CN202211001871.6A priority Critical patent/CN115306209A/en
Publication of CN115306209A publication Critical patent/CN115306209A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00Fencing, e.g. fences, enclosures, corrals
    • E04H17/14Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/1413Post-and-rail fences, e.g. without vertical cross-members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00Fencing, e.g. fences, enclosures, corrals
    • E04H17/009Footing elements for fence posts or fence sections
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00Fencing, e.g. fences, enclosures, corrals
    • E04H17/14Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/1413Post-and-rail fences, e.g. without vertical cross-members
    • E04H17/1417Post-and-rail fences, e.g. without vertical cross-members with vertical cross-members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00Fencing, e.g. fences, enclosures, corrals
    • E04H17/14Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/20Posts therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00Fencing, e.g. fences, enclosures, corrals
    • E04H17/14Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/20Posts therefor
    • E04H17/22Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The invention discloses a quickly-folded guardrail and a using method thereof, belonging to the technical field of guardrails. The invention relates to a quickly-folded guardrail and a using method thereof.A magnetic attraction force formed by a magnetic attraction block on a dead weight locking block can reduce the possibility that the dead weight locking block is separated from a lower locking groove due to the shaking of a guardrail main body, so that the safety is improved.

Description

Quickly-folded guardrail and using method thereof
Technical Field
The invention relates to the technical field of guardrails, in particular to a quickly-folded guardrail and a using method thereof.
Background
In the manufacturing workshop, the high-altitude guardrail can be folded up and down or can be integrally detached, so that the protection of the walking process of personnel and the conveying of materials are facilitated. At present, folded cascade's guardrail through can setting up locking structure, ensures that can not fold easily under the expansion state, for example sets up the structure of lockpin in guardrail both sides, but current common guardrail structure can't realize that single fast operation realizes folding, influences work efficiency.
In the prior art, for example, a foldable storage guard rail with publication number CN207362764U includes a left storage box, a right storage box and a protective folding plate; the protective folding plate comprises connecting plates and protective plates, the connecting plates are arranged at two ends of the protective folding plate, the adjacent protective plates are connected through the connecting plates and the protective plates by using elastic soft ropes, and the length of each elastic soft rope is the same as the width of each protective plate; the left storage box and the right storage box are symmetrical, have the same structure and are both open type storage cavities, and the width and the height of each storage cavity are the same as those of the protection plate; the connecting plate at one end of the protective folding plate is fixed in the middle of the left storage box through a soft rope, and the connecting plate at the other end of the protective folding plate is fixed in the middle of the right storage box through a soft rope;
however, during the cathode and anode dismantling process, the following defects are often present:
1. the existing guardrail can not be automatically contracted and expanded, so that the contraction process is troublesome;
2. secondly, current guardrail can't carry out the lock joint to the balancing weight after strutting, leads to strutting the back poor stability.
Disclosure of Invention
The invention aims to provide a quickly-folded guardrail and a using method thereof, wherein magnetic attraction force formed by a magnetic attraction block on a dead weight locking block can reduce the possibility that the dead weight locking block is separated from a lower locking groove due to shaking of a guardrail main body, the safety is improved, a limiting connecting pipe is made of a material with certain elastic deformability, the limiting connecting pipe can be slightly deformed by applying proper acting force on a person so as to enable a connecting rod to leave the limiting connecting pipe, the dead weight locking block is used for controlling the whole guardrail to be folded and unfolded, the folding convenience is effectively improved, automatic folding and unfolding are realized, the dead weight locking block is automatically locked and connected, the locking is effectively carried out while the guardrail is unfolded, the dead weight locking block is prevented from sliding out in the supporting process, the installation stability is improved, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
a quickly folded guardrail comprises a base and a guardrail main body, wherein the guardrail main body comprises a lower guardrail fixedly connected with the base and an upper guardrail connected with the lower guardrail, the upper guardrail is hinged with the lower guardrail and can rotate relative to the lower guardrail to form an unfolded state which is in a certain angle with the lower guardrail and a folded state which is folded on one side surface of the lower guardrail; the method is characterized in that:
an upper lock groove and a lower lock groove are respectively formed in the side edge of one side of the upper guardrail and the side edge of the same side of the lower guardrail, the lower end of the upper lock groove is provided with an opening, the upper end of the lower lock groove is provided with an opening, a self-weight lock block is hinged in the upper lock groove, and when the upper guardrail is in an unfolded state, the lower end part of the self-weight lock block is positioned in the lower lock groove under the self-gravity;
the lower guardrail comprises a first lower cross rod connected between the lower ends of the first outer side vertical rods;
at least one first inner vertical rod arranged between two first outer vertical rods is arranged between the first lower cross rod and the first upper cross rod;
at least one second inner vertical rod arranged between two second outer side vertical rods is arranged between the second upper cross rod and the second lower cross rod;
the self-weight locking block is provided with a contraction device, the contraction device is connected with the side end of the lower guardrail, and a locking device is arranged at the joint of one end of the self-weight locking block and the lower guardrail.
Furthermore, the lower guardrail comprises two first outer side vertical rods arranged in parallel at a certain interval and a first upper cross rod fixedly connected between the two first outer side vertical rods, and the lower end parts of the first outer side vertical rods are fixedly connected with the base; the upper guardrail comprises two second outer side vertical rods which are arranged in parallel at a certain interval, and a second upper cross rod and a second lower cross rod which are fixedly connected between the two first outer side vertical rods and are respectively positioned at the upper end and the lower end of the first outer side vertical rods, the second outer side vertical rods are positioned above the first outer side vertical rods, the second lower cross rods are arranged adjacent to the first upper cross rods, and the second lower cross rods are connected with the first upper cross rods through hinges; the upper locking groove and the lower locking groove are respectively positioned on the outer side surfaces of the first outer side vertical rod and the second outer side vertical rod on the same side.
Furthermore, the hinge includes hinge, lower hinge, connects the articulated shaft between last hinge and lower hinge, go up the hinge and pass through bolted connection fastening with the second sheer pole, lower hinge passes through bolted connection fastening with first last horizontal pole, it extends the limiting plate on the hinge to go up, works as when being the degree and expandes between last hinge and the lower hinge, the limiting plate forms spacingly with the rotation of lower hinge surface butt to last hinge.
Further, constriction device includes the rolling sleeve axle, the shrink stay cord, prop the stay cord open, the screens piece, screens groove and division board, dead weight locking piece one end is passed through the inner shaft pole and is installed in the last inslot that locks of last guardrail one side, the rolling sleeve axle has been cup jointed on the inner shaft pole, the division board has been cup jointed to the middle end of rolling sleeve axle, it has the shrink stay cord to coil on the rolling sleeve axle of division board below, it has the stay cord that struts to coil on the rolling sleeve axle of division board top, shrink stay cord one end is connected with lower guardrail, stay cord one end is connected with the screens piece, the inside groove that is used for the installation of screens piece is offered to lower locked inslot end, the screens groove of counterpointing with the screens piece is offered to the one end of going up the groove, the locking groove has been offered to screens groove the inner.
Further, the halving device includes interior locked groove, slider, installation pole, wane, extrusion spring, locking piece and locked groove, and the guardrail side is seted up under in the interior locked groove, and the slider is fixed in dead weight locking piece one end, has seted up the locked groove on the slider, and the top in interior locked groove is fixed with the installation pole, and the installation pole has cup jointed the wane, and the locking piece is installed to the one end below of wane, and extrusion spring is installed to wane other end below.
Furthermore, a magnetic suction block is arranged in the lower lock groove, the magnetic suction block forms magnetic suction force to the self-weight lock block, and the lower guardrail corresponds to the self-weight lock block and is provided with an operation groove.
Furthermore, the guardrail comprises at least two guardrail main bodies which are connected in sequence, and an included angle which is less than 180 degrees is formed between the adjacent guardrail main bodies; go up guardrail one side or both sides side and outwards extend and have the connecting rod, can dismantle the connection through the connecting piece between the connecting rod of adjacent guardrail main part.
Furthermore, the connecting piece comprises a middle bent pipe and limiting connecting pipes connected to two ends of the middle bent pipe, the cross sections of the limiting connecting pipes are arc-shaped, the angle of the arc-shaped limiting connecting pipes is larger than 180 degrees, the inner diameter of each limiting connecting pipe is matched with the outer diameter of each connecting rod, so that the limiting connecting pipes form radial limiting on the connecting rods positioned in the limiting connecting pipes, and guide surfaces which are convenient for the connecting rods to be clamped into the limiting connecting pipes are arranged on the limiting connecting pipes; the radial limit of the limit connecting pipe on the connecting rod can be relieved under the action of certain external force;
the inner wall of the limiting connecting pipe is provided with a clamping groove, the periphery of the connecting rod is protruded to form a clamping ring, and the clamping ring is located in the clamping groove to enable the limiting connecting pipe to form axial limiting for the connecting rod located in the limiting connecting pipe.
Furthermore, the connecting piece comprises a middle bent pipe and a limiting connecting pipe connected to one end of the middle bent pipe, the cross section of the limiting connecting pipe is arc-shaped, the angle of the cross section of the limiting connecting pipe is larger than the angle of the cross section of the middle bent pipe, the inner diameter of the limiting connecting pipe is matched with the outer diameter of the connecting rod, so that the limiting connecting pipe forms radial limiting on the connecting rod positioned in the limiting connecting pipe, and a guide surface which is convenient for the connecting rod to be clamped into the limiting connecting pipe is arranged on the limiting connecting pipe; the radial limit of the limit connecting pipe to the connecting rod can be relieved under the action of certain external force;
the inner wall of the limiting connecting pipe is provided with a clamping groove, the periphery of the connecting rod protrudes to form a clamping ring, and the clamping ring is positioned in the clamping groove to enable the limiting connecting pipe to axially limit the connecting rod positioned in the limiting connecting pipe;
the other end of the middle bent pipe is fixedly connected with a connecting rod at one side of a guardrail main body;
the whole connecting piece is made of materials with certain elastic deformability.
The invention provides another technical scheme: a method of facilitating replacement of a cathode and anode scrap electrolysis apparatus, comprising the steps of:
the method comprises the following steps: when the folding bicycle needs to be folded, one end of the rocker is extruded, the locking block at the other end of the rocker is moved upwards to be separated from the locking groove, and then the self-weight locking block is rotated out to drive the inner shaft rod to rotate while rotating;
step two: the inner shaft rod drives the rolling sleeve shaft to rotate, the rolling sleeve shaft drives the contraction pull rope to wind, the rolling sleeve shaft drives the opening pull rope to loosen while winding, and the contraction pull rope drives the upper guardrail and the lower guardrail to fold when winding;
step three: when the self-weight locking block is completely reset, one end of the clamping block is inserted into the locking groove, and the upper guardrail and the lower guardrail are completely unfolded;
step four: when the dead weight locking piece resets, the extrusion wane moves up, when the slider screw in resets to interior locked groove, loosens the wane, and the locking piece card is gone into to the locked groove of slider in, and the dead weight locking piece is accomplished the lock and is connect by oneself.
Further, to step two, when need change negative pole guide arm or positive pole guide arm alone, drive through rotatory adjusting nut and rotate to the axostylus axostyle, drive to the axostylus axostyle and unscrew to clamp plate and annular gland together.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a quickly-folded guardrail and a using method thereof.A base is fixedly connected with the ground through screws, a lower guardrail and the base are connected into a whole and fixed on the ground, a self-weight locking block vertically faces downwards under the self gravity in an unfolded state, an upper guardrail and a lower guardrail are automatically tightened to play a role of safety protection, when materials are operated and the guardrail needs to be folded, the self-weight locking block is only required to be turned up, and the upper guardrail is slightly bent to a position of 180 degrees, so that the operation can be completed.
2. According to the quickly-folded guardrail and the using method thereof, the magnetic attraction block is arranged in the lower lock groove and forms magnetic attraction force on the self-weight lock block, the lower guardrail is provided with the operation groove corresponding to the self-weight lock block, and the magnetic attraction force formed by the magnetic attraction block on the self-weight lock block can reduce the possibility that the self-weight lock block is separated from the lower lock groove due to the shaking of the guardrail main body, so that the safety is improved.
3. The invention provides a quickly-folded guardrail and a using method thereof.A clamping groove is arranged on the inner wall of a limiting connecting pipe, a clamping ring is convexly formed on the periphery of the connecting rod, the clamping ring is positioned in the clamping groove, so that the limiting connecting pipe can axially limit the connecting rod positioned in the limiting connecting pipe, the limiting connecting pipe is made of a material with certain elastic deformability, and the limiting connecting pipe can be slightly deformed by applying proper acting force by a person so as to enable the connecting rod to leave the limiting connecting pipe.
4. The invention provides a quickly-folded guardrail and a using method thereof.A locking groove is formed at the inner end of a clamping groove, a dead weight locking block is rotated out, an inner shaft rod is driven to rotate while rotating, the inner shaft rod drives a rolling sleeve shaft to rotate, the rolling sleeve shaft drives a contraction pull rope to wind, the rolling sleeve shaft drives a stretching pull rope to loosen while winding, the contraction pull rope drives an upper guardrail and a lower guardrail to fold when in stretching, the dead weight locking block is rotated and reset, the rolling sleeve shaft is turned over, the contraction pull rope is loosened, the stretching pull rope is rolled, a clamping block is driven to be drawn out from the inner end of an inner groove, the clamping block is drawn into the clamping groove while pulling, the upper guardrail and the lower guardrail are stretched while the dead weight locking block is completely reset, one end of the clamping block is inserted into the locking groove, the upper guardrail and the lower guardrail are completely stretched, the whole guardrail is controlled to be folded and stretched by the dead weight locking block, the folding convenience is effectively improved, and the automatic folding and the stretching are realized.
5. The invention provides a quickly-folded guardrail and a using method thereof.A squeezing spring is arranged below the other end of a wane, when the guardrail needs to be folded, one end of the wane is squeezed, a locking block at the other end of the wane is moved upwards to be separated from a locking groove, when a self-weight locking block is reset, the wane is squeezed to move upwards, when a sliding block is screwed into an inner locking groove to reset, the wane is loosened, the locking block is clamped into the locking groove of the sliding block, the self-weight locking block is automatically locked, the locking is effectively carried out while the locking is opened, the self-weight locking block is prevented from sliding out in the supporting process, and the mounting stability is improved.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;
FIG. 3 is a side view of the overall structure of the present invention folded;
FIG. 4 is a front view of the hinge of the present invention;
FIG. 5 is a side view of the hinge of the present invention;
FIG. 6 is a schematic view of the structure of the deadweight lock piece of the present invention engaged with the guardrail body;
FIG. 7 is a schematic view of the structure of the guardrail body attachment of the present invention;
FIG. 8 is a cross-sectional view of a spacing connection tube of the present invention;
FIG. 9 is a cross-sectional view of a spacing connection tube and guide surface configuration of the present invention;
FIG. 10 is a cross-sectional view of the retractor of the present invention;
FIG. 11 is a side cross-sectional view of the retractor of the present invention;
FIG. 12 is an enlarged view taken at B of FIG. 10 in accordance with the present invention;
FIG. 13 is an enlarged view of FIG. 11 at C.
In the figure: 1. a base; 2. a lower guardrail; 201. a first outer side vertical bar; 202. a first upper cross bar; 203. a first lower cross bar; 204. a lower lock groove; 2041. an inner tank; 205. a first inner vertical bar; 206. a magnetic block; 3. an upper guardrail; 301. a second outer side vertical bar; 302. a second upper cross bar; 303. a second lower cross bar; 304. an upper lock groove; 305. a second inner vertical bar; 306. a connecting rod; 307. a snap ring; 4. a self-weight locking block; 41. an inner shaft lever; 5. a hinge; 501. mounting a hinge; 502. a lower hinge; 503. hinging a shaft; 504. a limiting plate; 6. a connecting member; 601. a middle bent pipe; 602. a limiting connecting pipe; 603. a guide surface; 604. a card slot; 7. a retractor; 701. winding a sleeve shaft; 702. retracting the pull rope; 703. the pull rope is propped open; 704. a bit block; 705. a clamping groove; 7051. a locking groove; 706. a partition plate; 8. a locking device; 81. an inner locking groove; 82. a slider; 83. mounting a rod; 84. a seesaw; 85. extruding the spring; 86. a locking block; 87. and (4) locking the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the technical problems that the existing guardrail cannot be folded, so that the whole size is large and the occupied space is occupied, please refer to fig. 1 to 3, the embodiment provides the following technical scheme:
a fast folding guardrail and a using method thereof comprise a base 1 and a guardrail main body, wherein the guardrail main body comprises a lower guardrail 2 fixedly connected with the base 1 and an upper guardrail 3 connected with the lower guardrail 2, the upper guardrail 3 is hinged with the lower guardrail 2 and can rotate relative to the lower guardrail 2 to form an unfolding state of 180 degrees with the lower guardrail 2 and a folding state of folding the side surface of one side of the lower guardrail 2;
go up 3 one side sides of guardrail and 2 same one side sides of guardrail down and be equipped with locked groove 304 and lower locked groove 204 respectively, it is the opening to go up locked groove 304 lower extreme, locked groove 204 upper end is the opening down, it has dead weight locking piece 4 to go up to articulate in the locked groove 304, works as when going up guardrail 3 and for the expansion mode, dead weight locking piece 4 is located locked groove 204 down under its tip under self gravity.
Base 1 passes through screw and ground fixed connection, and lower guardrail 2 is even as an organic whole with base 1, fixes subaerial, and under the expansion state, dead weight locking piece 4 is perpendicular downwards under self gravity, and the guardrail is tight from top to bottom automatically, plays safety protection's effect, and at the operation material, when needing to fold the guardrail, only need to turn up dead weight locking piece 4, will go up the guardrail and break off the position to 180 degrees gently off with the fingers and thumb, and the operation can be accomplished.
The lower guardrail 2 comprises two first outer side vertical rods 201 which are arranged in parallel at a certain interval, and a first upper cross rod 202 which is fixedly connected between the two first outer side vertical rods 201, the lower end part of each first outer side vertical rod 201 is fixedly connected with the base 1, the upper guardrail 3 comprises two second outer side vertical rods 301 which are arranged in parallel at a certain interval, a second upper cross rod 302 and a second lower cross rod 303 which are fixedly connected between the two first outer side vertical rods 301 and are respectively located at the upper end and the lower end of each first outer side vertical rod 301, the second outer side vertical rods 301 are located above the first outer side vertical rods 201, the second lower cross rods 303 are adjacent to the first upper cross rods 202, the second lower cross rods 303 are connected with the first upper cross rods 202 through hinges 5, and the upper locking grooves 304 and the lower locking grooves 204 are respectively located on the outer side surfaces of the first outer side vertical rods 201 and the second outer side vertical rods 301 which are located on the same side.
As shown in fig. 4-5, the hinge 5 includes an upper hinge 501, a lower hinge 502, and a hinge shaft 503 connected between the upper hinge 501 and the lower hinge 502, the upper hinge 501 is fastened to the second lower cross bar 303 through a bolt connection, the lower hinge 502 is fastened to the first upper cross bar 202 through a bolt connection, a limiting plate 504 extends from the upper hinge 501, and when the upper hinge 501 and the lower hinge 502 are unfolded 180 degrees, the limiting plate 504 abuts against the surface of the lower hinge 502 to limit the rotation of the upper hinge 501.
The lower guardrail 2 comprises a first lower cross bar 203 connected between the lower ends of the first outer side vertical bars 201, at least one first inner vertical bar 205 arranged between the two first outer side vertical bars 201 is arranged between the first lower cross bar 203 and the first upper cross bar 202,
at least one second inner vertical bar 305 arranged between two second outer vertical bars 301 is arranged between the second upper cross bar 302 and the second lower cross bar 303.
As shown in fig. 6, be equipped with magnetism in the locked groove 204 down and inhale piece 206, magnetism is inhaled piece 206 and is formed magnetic attraction to dead weight locking piece 4, guardrail 2 corresponds down dead weight locking piece 4 is equipped with the operation fluting, and magnetism is inhaled the reducible dead weight locking piece 4 of magnetic attraction that piece 206 formed dead weight locking piece 4 and is rocked the possibility of leaving locked groove 204 down because of the guardrail main part, improves the security, and magnetism is inhaled piece 206 and can be common magnetism materials such as magnet.
In order to solve the technical problems that the existing guardrail is troublesome to directly connect and the angle of the guardrail cannot be changed after connection, please refer to fig. 7-9, the embodiment provides the following technical solutions:
the guardrail comprises at least two guardrail bodies which are sequentially connected, wherein an included angle which is less than 180 degrees is formed between the adjacent guardrail bodies; the side edge of one side or two sides of the upper guardrail 3 extends outwards to form a connecting rod 306, and the connecting rods 306 of the adjacent guardrail bodies are detachably connected through a connecting piece 6.
The connecting piece 6 comprises a middle elbow 601 and a limit connecting pipe 602 connected to two ends of the middle elbow 601, as shown in fig. 8, the cross section of the limit connecting pipe 602 is arc-shaped with an angle larger than 180 degrees, the inner diameter of the limit connecting pipe 602 is adapted to the outer diameter of the connecting rod 306 so that the limit connecting pipe 602 forms radial limit for the connecting rod 306 positioned in the limit connecting pipe 602, and a guide surface 603 for the connecting rod 306 to be clamped into the limit connecting pipe 602 is arranged on the limit connecting pipe 602; the radial limit of the connecting rod 306 by the limit connecting pipe 602 can be released under the action of a certain external force;
a clamping groove 604 is formed in the inner wall of the limiting connecting pipe 602, a clamping ring 307 is formed by the protrusion of the outer periphery of the connecting rod 306, and the clamping ring 307 is positioned in the clamping groove 604, so that the limiting connecting pipe 602 forms axial limiting on the connecting rod 306 positioned in the limiting connecting pipe 602;
the limiting connecting pipe 602 is made of a material with certain elastic deformability, and when a person applies proper acting force, the limiting connecting pipe 602 can be slightly deformed, so that the connecting rod 306 leaves the limiting connecting pipe 602, and the structure needs to be folded, the connecting piece 6 needs to be detached firstly, and then the connecting rod is folded. The connecting member 6 may be fixedly connected to the connecting rod 306 of one of the guardrail bodies, for example, by gluing, welding, and the like, and the connecting member 6 is made of a material having a certain elastic deformability, so that the connecting member is not easily lost.
In order to solve the technical problem that the existing guardrail cannot be automatically contracted and expanded, which causes a troublesome contraction process, please refer to fig. 10-12, the embodiment provides the following technical solutions:
a contraction device 7 is arranged on the self-weight locking block 4, the contraction device 7 is connected with the side end of the lower guardrail 2, a locking device 8 is arranged at the joint of one end of the self-weight locking block 4 and the lower guardrail 2,
the shrinking device 7 comprises a rolling sleeve shaft 701, a shrinking pull rope 702, a spreading pull rope 703, a blocking block 704, a blocking groove 705 and a separation plate 706, one end of a dead weight locking block 4 is arranged in the upper locking groove 304 at one side of the upper guardrail 3 through an inner shaft rod 41, the rolling sleeve shaft 701 is sleeved on the inner shaft rod 41, the separation plate 706 is sleeved at the middle end of the rolling sleeve shaft 701, the shrinking pull rope 702 is wound on the rolling sleeve shaft 701 below the separation plate 706, the spreading pull rope 703 is wound on the rolling sleeve shaft 701 above the separation plate 706, one end of the shrinking pull rope 702 is connected with the lower guardrail 2, one end of the spreading pull rope 703 is connected with the blocking block 704, an inner groove 2041 for installing the blocking block 704 is arranged at the inner end of the lower locking groove 204, the blocking groove 705 aligned with the blocking block 704 is arranged at one end of the upper locking groove 304, a locking groove 7051 is arranged at the inner end 705, the dead weight locking block 4 is rotated out, the inner shaft rod 41 is driven to rotate at the same time of rotation, the inner shaft rod 41 drives the rolling sleeve shaft 701 to rotate, the rolling sleeve shaft 701 drives the contraction pull rope 702 to wind, the rolling sleeve shaft 701 drives the opening pull rope 703 to loosen while winding, when the contraction pull rope 702 is wound, the upper guardrail 3 and the lower guardrail 2 are driven to fold, when the expansion is needed, the dead weight locking block 4 is rotated and reset, the rolling sleeve shaft 701 is turned over, the contraction pull rope 702 is loosened, the opening pull rope 703 is wound, the clamping block 704 is driven to be drawn out from the inner end of the inner groove 2041, the clamping block 704 is drawn into the clamping groove 705, when the self weight locking block 4 is pulled, the upper guardrail 3 and the lower guardrail 2 are stretched, when the self weight locking block 4 is completely reset, one end of the clamping block 704 is inserted into the locking groove 7051, the upper guardrail 3 and the lower guardrail 2 are completely stretched, the whole guardrail is controlled to be folded and stretched by the self weight locking block 4, the folding convenience is effectively improved, and automatic folding and stretching are realized.
In order to solve current guardrail can't carry out the lock joint to the balancing weight after strutting, lead to strutting the poor technical problem of back stability, please refer to fig. 13, this embodiment provides following technical scheme:
the locking device 8 comprises an inner locking groove 81, a sliding block 82, an installation rod 83, a rocker 84, an extrusion spring 85, a locking block 86 and a locking groove 87, wherein the inner locking groove 81 is formed in the side end of the lower guardrail 2, the sliding block 82 is fixed at one end of the dead weight locking block 4, the locking groove 87 is formed in the sliding block 82, the installation rod 83 is fixed above the inner locking groove 81, the rocker 84 is sleeved on the installation rod 83, the locking block 86 is installed below one end of the rocker 84, the extrusion spring 85 is installed below the other end of the rocker 84, when the folding is needed, one end of the rocker 84 is extruded, the locking block 86 at the other end of the rocker 84 is moved upwards to be separated from the locking groove 87, when the dead weight locking block 4 is reset, the rocker 84 is moved upwards, when the sliding block 82 is screwed into the inner locking groove 81 to reset, the rocker 84 is loosened, the locking block 86 is clamped into the locking groove 87 of the sliding block 82, the dead weight locking block 4 completes self-locking, locking is effectively locked while being unfolded, and prevented from sliding out in the supporting process, and dead weight is improved in the installation stability.
In order to better show the using process of the guardrail pole capable of being folded quickly, the embodiment provides a using method of the guardrail pole capable of being folded quickly, which comprises the following steps:
the method comprises the following steps: when the folding is needed, one end of the warping plate 84 is extruded, the locking block 86 at the other end of the warping plate 84 moves upwards to be separated from the locking groove 87, the self-weight locking block 4 is rotated out, and the inner shaft lever 41 is driven to rotate while the self-weight locking block is rotated;
step two: the inner shaft rod 41 drives the rolling sleeve shaft 701 to rotate, the rolling sleeve shaft 701 drives the contraction pull rope 702 to wind, the rolling sleeve shaft 701 drives the opening pull rope 703 to loosen while winding, and the contraction pull rope 702 drives the upper guardrail 3 and the lower guardrail 2 to fold when winding;
step three: when the self-weight locking block 4 needs to be unfolded, the self-weight locking block 4 is rotated to reset, the winding sleeve shaft 701 is turned over, the contraction pull rope 702 is loosened, the unfolding pull rope 703 is wound to drive the clamping block 704 to be drawn out from the inner end of the inner groove 2041, the clamping block 704 is drawn into the clamping groove 705, the upper guardrail 3 and the lower guardrail 2 are unfolded while being pulled, when the self-weight locking block 4 is completely reset, one end of the clamping block 704 is inserted into the locking groove 7051, and the upper guardrail 3 and the lower guardrail 2 are completely unfolded;
step four: when the dead weight lock block 4 is reset, the rocker 84 is extruded to move upwards, when the sliding block 82 is screwed into the inner lock groove 81 to reset, the rocker 84 is loosened, the lock block 86 is clamped into the lock groove 87 of the sliding block 82, and the dead weight lock block 4 completes self-locking connection.
In summary, according to the guardrail and the method for using the same of the present invention, the base 1 is fixedly connected to the ground through screws, the lower guardrail 2 is connected to the base 1 as a whole and fixed to the ground, in the unfolded state, the self-weight lock block 4 is vertically downward under its own gravity, and automatically closes the upper guardrail and the lower guardrail to perform a safety protection function, when the guardrail needs to be folded during material operation, only the self-weight lock block 4 needs to be flipped up, and the upper guardrail is slightly snapped to a position of 180 degrees, so that the operation can be completed, the magnetic attraction block 206 is disposed in the lower lock groove 204, the magnetic attraction block 206 forms a magnetic attraction force on the self-weight lock block 4, the lower guardrail 2 is provided with an operation groove corresponding to the self-weight lock block 4, the magnetic attraction force formed by the magnetic block 206 on the self-weight lock block 4 can reduce the possibility that the self-weight lock block 4 is swung away from the lower lock groove 204 due to the guardrail body, so as to improve the safety, the inner wall of the limit connection pipe 602 is provided with a clamp groove 604, the clamp groove 307 is protruded on the periphery of the connection pipe 306, the clamp groove 307 is located in the limit connection pipe 602, so that the limit connection pipe 602 can be deformed by a flexible structure, and the limit connection pipe 602 can be removed, and the connection pipe 602 can be folded slightly. The connecting member 6 can also be fixedly connected with the connecting rod 306 of one of the guardrail bodies, for example, by gluing, welding, etc., the connecting member 6 is made of a material with a certain elastic deformable ability, so that the connecting member can be released from being connected with the other guardrail body, and is not easy to lose, the inner end of the clamping groove 705 is provided with a locking groove 7051, the self-weight locking piece 4 is rotated out, the inner shaft rod 41 is driven to rotate while rotating, the inner shaft rod 41 drives the rolling sleeve shaft 701 to rotate, the rolling sleeve shaft 701 drives the contraction pull rope 702 to wind, the rolling sleeve shaft 701 drives the expansion pull rope 703 to loosen while winding, when the contraction pull rope 702 is wound, the upper guardrail 3 and the lower guardrail 2 are driven to fold, when the expansion is needed, the self-weight locking piece 4 is rotated to reset, the rolling sleeve shaft 701 is turned over, the contraction rolling pull rope 702 is loosened, the expansion pull rope 703 drives the clamping piece 704 to be drawn out from the inner end of the inner groove 2041, the clamping block 704 is pulled into the clamping groove 705, the upper guardrail 3 and the lower guardrail 2 are unfolded while being pulled, when the self-weight locking block 4 is completely reset, one end of the clamping block 704 is inserted into the locking groove 7051, the upper guardrail 3 and the lower guardrail 2 are completely unfolded, the whole guardrail is controlled to be folded and unfolded through the self-weight locking block 4, folding convenience is effectively improved, automatic folding and unfolding are achieved, an extrusion spring 85 is installed below the other end of the warping plate 84, when folding is needed, one end of the warping plate 84 is extruded, the locking block 86 at the other end of the warping plate 84 is moved upwards to be separated from the locking groove 87, when the self-weight locking block 4 is reset, the warping plate 84 is extruded upwards, when the sliding block 82 is screwed into the inner locking groove 81 to reset, the warping plate 84 is loosened, the locking block 86 is clamped into the locking groove 87 of the sliding block 82, the self-weight locking block 4 completes self-locking, locking while being effectively unfolded, locking is prevented from being carried out during supporting, the dead weight locking piece 4 slips out, and the stability of installation is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (9)

1. A quick folding guardrail comprises a base (1) and a guardrail main body, wherein the guardrail main body comprises a lower guardrail (2) fixedly connected with the base (1) and an upper guardrail (3) connected with the lower guardrail (2), the upper guardrail (3) is hinged with the lower guardrail (2) and can rotate relative to the lower guardrail (2) to form an unfolding state of 180 degrees with the lower guardrail (2) and a folding state of folding one side face of the lower guardrail (2); the method is characterized in that:
an upper lock groove (304) and a lower lock groove (204) are respectively formed in the side edge of one side of the upper guardrail (3) and the side edge of the same side of the lower guardrail (2), the lower end of the upper lock groove (304) is provided with an opening, the upper end of the lower lock groove (204) is provided with an opening, a self-weight lock block (4) is hinged in the upper lock groove (304), and when the upper guardrail (3) is in an unfolded state, the lower end part of the self-weight lock block (4) is located in the lower lock groove (204) under the self-gravity;
a contraction device (7) is arranged on the self-weight locking block (4), the contraction device (7) is connected with the side end of the lower guardrail (2), a locking device (8) is arranged at the joint of one end of the self-weight locking block (4) and the lower guardrail (2), the retraction device (7) comprises a rolling sleeve shaft (701), a retraction pull rope (702), a distraction pull rope (703), a clamping block (704), a clamping groove (705) and a separation plate (706), one end of the self-weight lock block (4) is installed in an upper locking groove (304) on one side of an upper guardrail (3) through an inner shaft rod (41), the rolling sleeve shaft (701) is sleeved on the inner shaft rod (41), the separation plate (706) is sleeved at the middle end of the rolling sleeve shaft (701), the retraction pull rope (702) is wound on the rolling sleeve shaft (701) below the separation plate (706), the distraction pull rope (703) is wound on the rolling sleeve shaft (701) above the separation plate (706), one end of the retraction pull rope (702) is connected with a lower guardrail (2), one end of the distraction pull rope (703) is connected with the clamping block (704), an inner groove (2041) for installation of the clamping block (704) is formed in the inner end of a lower locking groove (204), one end of the upper locking groove (304) is provided with the clamping groove (704), and the inner end of the clamping groove (7051) is formed in the clamping groove (705).
2. The quick-fold guardrail of claim 1, wherein: the lower guardrail (2) comprises a first lower cross bar (203) connected between the lower ends of the first outer side vertical bars (201), at least one first inner vertical rod (205) arranged between two first outer vertical rods (201) is arranged between the first lower cross rod (203) and the first upper cross rod (202), at least one second inner vertical rod (305) arranged between two second outer vertical rods (301) is arranged between the second upper cross rod (302) and the second lower cross rod (303), the lower guardrail (2) comprises two first outer vertical rods (201) which are arranged in parallel at a certain interval, and a first upper cross rod (202) fixedly connected between the two first outer vertical rods (201), the lower end part of the first outer vertical rod (201) is fixedly connected with the base (1), the upper guardrail (3) comprises two second outer side vertical rods (301) which are arranged in parallel at a certain interval, a second upper cross rod (302) and a second lower cross rod (303) which are fixedly connected between the two first outer side vertical rods (301) and are respectively positioned at the upper end and the lower end of the first outer side vertical rod (301), the second outer side vertical rod (301) is positioned above the first outer side vertical rod (201), the second lower cross rod (303) is arranged adjacent to the first upper cross rod (202), the second lower cross bar (303) is connected with the first upper cross bar (202) through a hinge (5); the upper locking groove (304) and the lower locking groove (204) are respectively positioned on the outer side surfaces of the first outer vertical rod (201) and the second outer vertical rod (301) on the same side.
3. The quick-fold guardrail of claim 2, wherein: hinge (5) are including last hinge (501), lower hinge (502), be connected articulated shaft (503) between last hinge (501) and lower hinge (502), go up hinge (501) and second sheer pole (303) and pass through the bolted connection fastening, lower hinge (502) pass through the bolted connection fastening with first horizontal pole (202) of going up, go up and extend limiting plate (504) on hinge (501), work as it expandes to be 180 degrees between hinge (501) and lower hinge (502), limiting plate (504) and lower hinge (502) surface butt form spacingly to the rotation of going up hinge (501).
4. The quick fold guardrail of claim 1, wherein: locking device (8) are including interior locked groove (81), slider (82), installation pole (83), wane (84), extrusion spring (85), locking piece (86) and locked groove (87), guardrail (2) side under interior locked groove (81) is seted up, slider (82) are fixed in dead weight locking piece (4) one end, locked groove (87) have been seted up on slider (82), the top of interior locked groove (81) is fixed with installation pole (83), wane (84) have been cup jointed in installation pole (83), locking piece (86) are installed to the one end below of wane (84), extrusion spring (85) are installed to wane (84) other end below.
5. The quick-fold guardrail of claim 2, wherein: be equipped with magnetism in lower locked groove (204) and inhale piece (206), magnetism is inhaled piece (206) and is formed magnetic attraction to dead weight locking piece (4), guardrail (2) correspond down dead weight locking piece (4) are equipped with the operation fluting.
6. The quick-fold guardrail of claim 1, wherein: the guardrail comprises at least two guardrail bodies which are sequentially connected, wherein an included angle which is less than 180 degrees is formed between the adjacent guardrail bodies; go up guardrail (3) one side or both sides side outwards extend and have connecting rod (306), can dismantle the connection through connecting piece (6) between the connecting rod (306) of adjacent guardrail main part.
7. The quick-fold guardrail of claim 6, wherein: the connecting piece (6) comprises a middle elbow (601) and limiting connecting pipes (602) connected to two ends of the middle elbow (601), the cross sections of the limiting connecting pipes (602) are arc-shaped, the angle of each limiting connecting pipe is larger than 180 degrees, the inner diameter of each limiting connecting pipe (602) is matched with the outer diameter of each connecting rod (306) to enable each limiting connecting pipe (602) to form radial limiting for the connecting rod (306) located in each limiting connecting pipe (602), and each limiting connecting pipe (602) is provided with a guide surface (603) which is convenient for the connecting rod (306) to be clamped into the corresponding limiting connecting pipe (602); the radial limit of the connecting rod (306) by the limit connecting pipe (602) can be released under the action of certain external force;
spacing connecting pipe (602) inner wall is equipped with draw-in groove (604), connecting rod (306) periphery is protruding to form snap ring (307), snap ring (307) are located draw-in groove (604) and make spacing connecting pipe (602) to connecting rod (306) that are located spacing connecting pipe (602) form the axial spacingly.
8. The quick-fold guardrail of claim 7, wherein: the connecting piece (6) comprises a middle elbow (601) and a limiting connecting pipe (602) connected to one end of the middle elbow (601), the cross section of the limiting connecting pipe (602) is arc-shaped, the angle of the cross section of the limiting connecting pipe is larger than 180 degrees, the inner diameter of the limiting connecting pipe (602) is matched with the outer diameter of the connecting rod (306) to enable the limiting connecting pipe (602) to form radial limiting for the connecting rod (306) located in the limiting connecting pipe (602), and a guide surface (603) which is convenient for the connecting rod (306) to be clamped into the limiting connecting pipe (602) is arranged on the limiting connecting pipe (602); the radial limit of the connecting rod (306) by the limit connecting pipe (602) can be released under the action of a certain external force;
a clamping groove (604) is formed in the inner wall of the limiting connecting pipe (602), a clamping ring (307) is formed by the periphery of the connecting rod (306) in a protruding mode, and the clamping ring (307) is located in the clamping groove (604) to enable the limiting connecting pipe (602) to axially limit the connecting rod (306) located in the limiting connecting pipe (602);
the other end of the middle elbow (601) is fixedly connected with a connecting rod (306) on one side of the guardrail main body;
the connecting piece (6) is integrally made of a material with certain elastic deformability.
9. Use of a quickly folding underrun protection according to any one of claims 1 to 8, wherein: the method comprises the following steps:
the method comprises the following steps: when the folding bicycle is required, one end of the rocker (84) is extruded, the locking block (86) at the other end of the rocker (84) moves upwards to be separated from the locking groove (87), the self-weight locking block (4) is rotated out, and the inner shaft lever (41) is driven to rotate while rotating;
step two: the inner shaft rod (41) drives the rolling sleeve shaft (701) to rotate, the rolling sleeve shaft (701) drives the contraction pull rope (702) to wind, the rolling sleeve shaft (701) drives the opening pull rope (703) to loosen while winding, and the contraction pull rope (702) drives the upper guardrail (3) and the lower guardrail (2) to fold when rolling;
step three: when the self-weight lock block (4) needs to be unfolded, the self-weight lock block (4) is reset in a rotating mode, the winding sleeve shaft (701) is turned over, the contraction pull rope (702) is loosened, the unfolding pull rope (703) is wound to drive the clamping block (704) to be pulled out from the inner end of the inner groove (2041), the clamping block (704) is pulled into the clamping groove (705), the upper guardrail (3) and the lower guardrail (2) are unfolded while being pulled, when the self-weight lock block (4) is completely reset, one end of the clamping block (704) is inserted into the locking groove (7051), and the upper guardrail (3) and the lower guardrail (2) are completely unfolded;
step four: when the dead weight locking block (4) resets, the extrusion warped plate (84) moves upwards, when the sliding block (82) is screwed into the inner locking groove (81) to reset, the warped plate (84) is loosened, the locking block (86) is clamped into the locking groove (87) of the sliding block (82), and the dead weight locking block (4) completes self-locking connection.
CN202211001871.6A 2022-08-20 2022-08-20 Quickly-folded guardrail and using method thereof Pending CN115306209A (en)

Priority Applications (1)

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009007878U1 (en) * 2009-06-04 2009-09-03 Blank Metallbau Technik Gmbh connecting element
KR20140045474A (en) * 2014-03-05 2014-04-16 박신자 Safety guard frame for protecting a falling accident of opening
WO2016062164A1 (en) * 2014-10-22 2016-04-28 宋立新 Protective rail
KR20160111679A (en) * 2015-03-17 2016-09-27 주식회사 우신씨앤티 Safely automatic banister using buoyancy
CN206000256U (en) * 2016-07-20 2017-03-08 钟临风 Compact gardens guardrail
CN207296616U (en) * 2017-07-31 2018-05-01 浙江祥康农业发展有限公司 A kind of building decoration protective fence
CN207331555U (en) * 2017-09-03 2018-05-08 吴杭菲 A kind of airport automation safety barrier
CN108397123A (en) * 2018-04-28 2018-08-14 江苏阳光新格栅栏科技有限公司 A kind of compound guardrail of self-action
CN108798224A (en) * 2018-06-05 2018-11-13 温州市中强建设工程有限公司 Building construction protective fence
CN208626060U (en) * 2018-02-07 2019-03-22 郑州儿童医院 Foldable hospital bed guardrail
CN110939315A (en) * 2019-11-09 2020-03-31 上海建工四建集团有限公司 Folding safety barrier device
CN215593826U (en) * 2021-09-07 2022-01-21 福建省鸿飞建设有限公司 Guardrail bar is prevented to town road
CN216142527U (en) * 2021-08-24 2022-03-29 李全中 Portable folding guardrail for municipal administration
CN216341389U (en) * 2021-10-22 2022-04-19 齐金山 Building engineering guardrail structure
CN217812763U (en) * 2022-08-02 2022-11-15 浙江迦南科技股份有限公司 Can realize single quick folding guardrail

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009007878U1 (en) * 2009-06-04 2009-09-03 Blank Metallbau Technik Gmbh connecting element
KR20140045474A (en) * 2014-03-05 2014-04-16 박신자 Safety guard frame for protecting a falling accident of opening
WO2016062164A1 (en) * 2014-10-22 2016-04-28 宋立新 Protective rail
KR20160111679A (en) * 2015-03-17 2016-09-27 주식회사 우신씨앤티 Safely automatic banister using buoyancy
CN206000256U (en) * 2016-07-20 2017-03-08 钟临风 Compact gardens guardrail
CN207296616U (en) * 2017-07-31 2018-05-01 浙江祥康农业发展有限公司 A kind of building decoration protective fence
CN207331555U (en) * 2017-09-03 2018-05-08 吴杭菲 A kind of airport automation safety barrier
CN208626060U (en) * 2018-02-07 2019-03-22 郑州儿童医院 Foldable hospital bed guardrail
CN108397123A (en) * 2018-04-28 2018-08-14 江苏阳光新格栅栏科技有限公司 A kind of compound guardrail of self-action
CN108798224A (en) * 2018-06-05 2018-11-13 温州市中强建设工程有限公司 Building construction protective fence
CN110939315A (en) * 2019-11-09 2020-03-31 上海建工四建集团有限公司 Folding safety barrier device
CN216142527U (en) * 2021-08-24 2022-03-29 李全中 Portable folding guardrail for municipal administration
CN215593826U (en) * 2021-09-07 2022-01-21 福建省鸿飞建设有限公司 Guardrail bar is prevented to town road
CN216341389U (en) * 2021-10-22 2022-04-19 齐金山 Building engineering guardrail structure
CN217812763U (en) * 2022-08-02 2022-11-15 浙江迦南科技股份有限公司 Can realize single quick folding guardrail

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
周隆众;郭永智;刘新翠;: "一种高耐久性钢筋混凝土防撞护栏的研发", 公路交通科技(应用技术版), no. 10, 15 October 2018 (2018-10-15) *
姬艳伟;: "一种高度自适应半刚性交通护栏防阻块设计", 科技经济导刊, no. 19, 5 July 2017 (2017-07-05) *

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