CN211142912U - Highway removes guardrail - Google Patents

Abstract

The utility model discloses a highway movable guardrail, which is characterized by comprising a stand column and a guardrail unit, wherein the guardrail unit comprises an upper cross rod, a lower cross rod and a vertical rod, the stand column is connected with a rotating slide seat in a sliding way, the two ends of the upper cross rod in the length direction are respectively connected with the two rotating slide seats in a rotating way, the stand column is fixedly provided with a rotating seat, the two ends of the lower cross rod in the length direction are respectively connected with the two rotating seats in a rotating way, the stand column comprises a column body and a base connected to the bottom of the column body in a sliding way, and the column body is provided with a lifting driving structure; montant one end is fixed on the sheer pole, and the other end slides with last horizontal pole and is connected, sets up the perforation that supplies the montant to pass on the last horizontal pole, and the montant is hollow to be set up, and vertical sliding is connected with the railing in the montant, is provided with between last horizontal pole and the railing to be used for supplying the horizontal pole to drive the transmission connection structure that the railing vertically slided. The guardrail can effectively prevent pedestrians from crossing the guardrail and crossing the road, and can also move under the condition of not being detached.

Description

Highway removes guardrail

Technical Field

The utility model relates to a traffic facilities correlation technique field, more specifically say, it relates to a highway removes guardrail.

Background

The guardrail is mainly used for protecting and protecting personal safety and equipment facilities in occasions such as houses, roads, commercial districts, public places and the like. The guardrail is visible everywhere in our life, and the effect of isolating the guardrail in road traffic is very important, so that the traffic can be smoother.

However, the existing guard rail has the following problems: 1. in places with large pedestrian flow, crossing the road is a very troublesome thing, some pedestrians are not willing to go around green lights such as zebra crossings and the like, and like to cross the road by crossing the guardrails when few vehicles are available, so that the phenomenon is common in cities and towns, great inconvenience is brought to traffic, and personal life safety is threatened. According to investigation, the number of traffic accidents caused by pedestrian crossing in China reaches thousands, and the number of casualties is larger. 2. The existing guardrail can only be fixed on the road surface and can not move on the road surface. When the position of the guardrail needs to be changed, only the original guardrail can be dismantled, and then the guardrail is installed at the needed position; therefore, the manual disassembly and assembly are needed, and the labor intensity of operators is increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a highway removes guardrail, this guardrail can prevent effectively that the pedestrian from striding across the guardrail and crossing the road to also can remove under the condition of not dismantling, thereby be favorable to alleviateing operating personnel's intensity of labour.

In order to achieve the above purpose, the utility model provides a following technical scheme: a traffic guardrail comprises at least two upright posts arranged at vertical intervals and a guardrail unit connected between two adjacent upright posts, wherein the guardrail unit comprises an upper transverse rod and a lower transverse rod which are transversely arranged and are parallel to each other and a vertical rod which is vertically arranged between the upper transverse rod and the lower transverse rod, the two ends of the upper transverse rod and the lower transverse rod are respectively and vertically connected with the two upright posts, the vertical rods are provided with a plurality of vertical rods, the vertical rods are arranged at intervals along the length direction of the lower transverse rod, the two adjacent vertical rods are arranged in parallel, the two ends of the vertical rods are respectively and vertically connected with an upper transverse rod and a lower transverse rod, a rotating slide seat used for mounting the upper transverse rod is connected on the upright posts in a sliding manner, the sliding direction of the rotating slide seat on the upright posts is the length direction of the upright posts, the two ends of the length direction of the upper transverse rod are respectively and rotatably, the upright post is fixedly provided with a rotating seat for mounting a lower cross rod, two ends of the lower cross rod in the length direction are respectively rotatably connected with the two rotating seats, the rotating shafts of the lower cross rod and the rotating seats are longitudinally arranged and are overlapped with the rotating shafts of the upper cross rod and the rotating slide seats, the upright post comprises a post body and a base connected to the bottom of the post body in a sliding manner, the sliding direction of the base on the post body is the length direction sliding of the post body, and the post body is provided with a lifting driving structure capable of driving the base to be separated from the ground;

montant length direction's one end fixed connection is on the sheer pole, the other end and the last horizontal pole of montant slide and be connected, set up the perforation that supplies the montant to pass on the last horizontal pole, the perforation runs through the upper and lower both sides face setting of last horizontal pole, the montant vertically slides and connects in the perforation, the montant becomes hollow tubular structure setting, vertically slide in the montant and be connected with the railing, be provided with between last horizontal pole and the railing and be used for supplying the transmission connection structure that the horizontal pole drove the railing and vertically slide, go up the horizontal pole and can drive the railing upwards slide in the montant through transmission connection structure along montant length direction sheer pole downward cross pole in-process of.

The utility model discloses further set up to: the transmission connection structure is including rotating the drive gear of connection in the montant and setting up the initiative rack on last horizontal pole and set up the driven rack on the railing, drive gear is including connecting the pivot between the relative two inside walls of montant, offer the spout of dodging that is used for dodging the pivot on the railing, the length direction who dodges the spout sets up along the glide direction of railing, the initiative rack is located the montant and with last horizontal pole fixed connection, the length direction of initiative rack sets up along the length direction of montant, driven rack and railing fixed connection, the glide direction of railing is followed to the length direction of driven rack sets up, initiative rack and driven rack mesh respectively in drive gear's relative both sides.

The utility model discloses further set up to: and a first resetting part for driving the upper cross rod to reset and slide is arranged between the upper cross rod and the lower cross rod.

The utility model discloses further set up to: and a second resetting part for driving the handrail to reset and slide is arranged between the handrail and the lower cross rod.

The utility model discloses further set up to: and a third reset component for driving the driving gear to reset and rotate is arranged between the driving gear and the vertical rod.

The utility model discloses further set up to: the tooth pitch of the driving rack is larger than that of the driven rack.

The utility model discloses further set up to: the utility model discloses a guardrail, including montant and railing, the opening that is located montant and railing lateral wall sets up towards initiative rack, go up the horizontal pole and be connected with the connecting block between the initiative rack, the width size of connecting block is less than the width size of initiative rack, is located the opening both sides and the connecting block butt of montant and railing lateral wall that the cross section of its length direction all becomes the C font structure setting.

The utility model discloses further set up to: the lift drive structure is including one end and base fixed connection's lift actuating lever, set up the through-hole that supplies the lift actuating lever to peg graft on the cylinder, the through-hole runs through cylinder length direction both ends, the external diameter size of lift actuating lever and the internal diameter size looks adaptation of through-hole, the lateral wall epirelief of lift actuating lever is equipped with the direction slide bar, set up the direction spout that supplies the direction slide bar to slide on the lateral wall of cylinder, the direction spout sets up along its length direction one-tenth helical structure, and the in-process lift actuating lever that the length direction of direction slide bar edge direction slided can be at the through-hole internal rotation vertical sliding.

The utility model discloses further set up to: the utility model discloses a cylinder, including base, lifting drive pole, pressure spring, base up end butt, spacing step butt on the other end and the cylinder inside wall, set up on the lateral wall that the base one end was kept away from to the lifting drive pole and supply action bars male drive hole, the drive hole is located the lifting drive pole and stretches out on the tip lateral wall of through-hole, the last cover of lifting drive pole is equipped with pressure spring, pressure spring one end and.

The utility model discloses further set up to: the lifting driving structure comprises a driving screw rod with one end fixedly connected with the base, the length direction of the driving screw rod is consistent with that of the column body, the driving screw rod is in threaded connection with the column body, and a locking nut capable of being abutted to the column body is connected to the driving screw rod in a threaded manner.

To sum up, the utility model discloses following beneficial effect has: the base is driven by the lifting driving structure to be separated from the ground, and then the stand column can be suspended in the supporting state of the guardrail unit, so that the stand column can be conveniently pushed to rotate around the guardrail unit, the guardrail can be moved under the state that the guardrail is not detached, and the labor intensity of operators is greatly reduced.

This guardrail is as good as when normal use with ordinary guardrail, because the guardrail height is higher when the pedestrian wants to stride across the guardrail, needs the pedestrian to press the horizontal pole, and the horizontal pole is slided downwards along stand length direction and can be driven the railing and rise through transmission connection structure this moment, plays the effect that blocks the pedestrian to can prevent effectively that the pedestrian from striding across the guardrail and crossing the road.

Drawings

FIG. 1 is a schematic structural view of a guardrail;

FIG. 2 is a partial cross-sectional view of the guardrail;

FIG. 3 is a partial cross-sectional view of the guardrail in another condition;

fig. 4 is a top cross-sectional view of the guard rail.

Reference numerals: 1. a column; 11. a cylinder; 111. a through hole; 112. a guide chute; 113. a limiting step; 12. a base; 13. rotating the sliding seat; 14. a rotating seat; 2. a guardrail unit; 21. an upper cross bar; 211. perforating; 212. connecting blocks; 22. a lower cross bar; 23. a vertical rod; 24. a railing; 241. avoiding the chute; 3. a transmission connection structure; 31. a drive gear; 311. a rotating shaft; 32. a driving rack; 33. a driven rack; 4. a lifting drive structure; 41. a lifting drive rod; 411. a guide slide bar; 412. a drive aperture; 413. an operating lever; 414. a pressing spring; 42. a drive screw; 421. and locking the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1-4, a traffic guardrail comprises at least two upright posts 1 vertically spaced and a guardrail unit 2 connected between two adjacent upright posts 1, wherein the guardrail unit 2 comprises an upper cross bar 21 and a lower cross bar 22 horizontally disposed and parallel to each other, and a vertical bar 23 vertically disposed between the upper cross bar 21 and the lower cross bar 22, two ends of the upper cross bar 21 and the lower cross bar 22 are respectively connected with the two upright posts 1 vertically, the vertical bar 23 is provided with a plurality of vertical bars 23 arranged along the length direction of the lower cross bar 22 at intervals, the two adjacent vertical bars 23 are both arranged in parallel, two ends of the vertical bar 23 are respectively connected with the upper cross bar 21 and the lower cross bar 22 vertically, the upright posts 1 are connected with a rotating slide seat 13 for mounting the upper cross bar 21 in a sliding manner, the sliding direction of the rotating slide seat 13 on the upright posts 1 is the length direction of the upright posts 1, two ends of the upper cross bar 21 in the length direction are, the upper cross bar 21 and the rotating shaft of the rotating slide seat 13 are longitudinally arranged, the upright post 1 is fixedly provided with a rotating seat 14 for mounting a lower cross bar 22, two ends of the lower cross bar 22 in the length direction are respectively rotatably connected with the two rotating seats 14, the rotating shaft of the lower cross bar 22 and the rotating seat 14 is longitudinally arranged and is axially superposed with the rotating shaft of the upper cross bar 21 and the rotating slide seat 13, the upright post 1 comprises a post body 11 and a base 12 connected to the bottom of the post body 11 in a sliding manner, the sliding direction of the base 12 on the post body 11 is the length direction sliding of the post body 11, and the post body 11 is provided with a lifting driving structure 4 capable of driving the base 12 to be separated; go up the both ends of horizontal pole 21 and sheer pole 22 and rotate with two stands 1 and be connected, consequently two stands 1 can rotate through guardrail unit 2 to drive this stand 1 after base 12 and the ground separation unsettled under the support state of guardrail unit 2 through lift drive structure 4, thereby conveniently promote this stand 1 and rotate round guardrail unit 2, can realize the removal of guardrail under the state of not dismantling the guardrail, alleviateed operation personnel's intensity of labour greatly.

One end of the vertical rod 23 in the length direction is fixedly connected to the lower cross rod 22, the other end of the vertical rod 23 is connected with the upper cross rod 21 in a sliding manner, a through hole 211 for the vertical rod 23 to pass through is formed in the upper cross rod 21, the through hole 211 penetrates through the upper side surface and the lower side surface of the upper cross rod 21, the vertical rod 23 is connected in the through hole 211 in a sliding manner, the vertical rod 23 is arranged in a hollow tubular structure, a handrail 24 is connected in the vertical rod 23 in a sliding manner in the longitudinal direction, a transmission connecting structure 3 for the upper cross rod 21 to drive the handrail 24 to longitudinally slide is arranged between the upper cross rod 21 and the handrail 24, and the handrail 24 can be driven by the transmission connecting structure 3 to upwards slide in; the height of the guardrail unit 2 is preferably higher than 1.6 m, i.e. the height of the upper cross bar 21 from the ground is higher than 1.6 m to avoid letting a pedestrian pass directly, and the distance between the vertical bars 23 is preferably 15 cm to avoid letting a pedestrian pass; this guardrail is as good as when normal use with ordinary guardrail, because the guardrail height is higher when the pedestrian wants to stride the guardrail, needs the pedestrian to press horizontal pole 21, and horizontal pole 21 slides downwards along 1 length direction of stand and can drive railing 24 through transmission connection structure 3 and rise this moment, plays the effect that blocks the pedestrian to can prevent effectively that the pedestrian from striding the guardrail and crossing the road.

The transmission connection structure 3 is including rotating the drive gear 31 of connection in montant 23, and set up the initiative rack 32 on last horizontal pole 21, and set up the driven rack 33 on railing 24, drive gear 31 is including connecting the pivot 311 between the two relative inside walls of montant 23, offer the spout 241 of dodging that is used for dodging pivot 311 on railing 24, the direction of slip of dodging spout 241 along railing 24 sets up, initiative rack 32 is located montant 23 and with last horizontal pole 21 fixed connection, the direction of length of initiative rack 32 sets up along the direction of length of montant 23, driven rack 33 and railing 24 fixed connection, the direction of slip of railing 24 is followed to the direction of length of driven rack 33 sets up, initiative rack 32 and driven rack 33 mesh respectively in drive gear 31's relative both sides. Go up the in-process that horizontal pole 21 slided downwards, can slide through driving drive gear 31 and drive gear 31 and rotate to drive driven rack 33 and reverse slide, can realize railing 24's rising, design benefit, and simple structure easily implements.

A first reset component for driving the upper cross rod 21 to reset and slide is arranged between the upper cross rod 21 and the lower cross rod 22. The first reset component can be a reset spring which is abutted between the upper cross bar 21 and the lower cross bar 22, when the upper cross bar 21 moves downwards, the reset spring is stressed and compressed to generate deformation and accumulate force, and after the pressure acting on the upper cross bar 21 is removed, the reset spring releases elastic potential energy to enable the upper cross bar 21 to reset upwards and slide until the initial state can be recovered.

A second reset component for driving the railing 24 to reset and slide is arranged between the railing 24 and the lower cross bar 22. The second reset component can be a reset tension spring connected between the handrail 24 and the lower cross bar 22, when the upper cross bar 21 drives the handrail 24 to rise through the transmission connecting structure 3, the reset tension spring is stressed, stretched, deformed and accumulated, after the pressure applied to the upper cross bar 21 is removed, the reset tension spring releases elastic potential energy to enable the handrail 24 to reset and slide downwards until the handrail can be restored to the initial state.

A third reset component for driving the driving gear 31 to reset and rotate is arranged between the driving gear 31 and the vertical rod 23. The third reset component can be a reset torsion spring arranged between the driving gear 31 and the vertical rod 23, the reset torsion spring can be sleeved on the rotating shaft 311, one end of the reset torsion spring is fixedly connected with the inner side wall of the vertical rod 23, the other end of the reset torsion spring is fixedly connected with the end part of the driving gear 31, when the upper cross rod 21 drives the driving gear 31 to rotate through the driving rack 32, the reset torsion spring is stressed to deform and accumulate force, and the reset torsion spring releases elastic potential energy to enable the driving gear 31 to reversely rotate after the pressure acting on the upper cross rod 21 is removed until the initial state can be recovered.

Above-mentioned first reset part and second reset part and third reset part all can realize railing 24 and the reset of entablature 21 to be favorable to the use of guardrail, and above-mentioned reset part can the alternative use also can use mixedly, be convenient for realize that the guardrail stops the effect that the pedestrian spaned railing 24.

The pitch of the driving rack 32 is greater than that of the driven rack 33, and the structure can realize that the downward movement distance of the upper cross rod 21 is less than the ascending distance of the railing 24, so that the railing 24 can ascend by a larger distance after the upper cross rod 21 is pressed to move downwards by a smaller distance, and the effect of stopping pedestrians from crossing the railing 24 is further improved.

The cross sections of the vertical rods 23 and the railings 24 in the length direction of the vertical rods 23 and the railings 24 are all arranged in a C-shaped structure, the openings in the side walls of the vertical rods 23 and the railings 24 are arranged towards the driving rack 32, the connecting blocks 212 are connected between the upper cross rods 21 and the driving rack 32, the width of each connecting block 212 is smaller than that of the driving rack 32, and the two sides of the openings in the side walls of the vertical rods 23 and the railings 24 are abutted to the connecting blocks 212. The vertical rod 23 and the railing 24 of the structure can effectively improve the sliding stability, and can reduce the influence of impurities on the use stability of the transmission connecting structure 3 as much as possible, thereby being beneficial to improving the service life of the fence.

The lifting driving structure 4 includes a lifting driving rod 41 with one end fixedly connected to the base 12, a through hole 111 for the insertion of the lifting driving rod 41 is provided on the cylinder 11, the through hole 111 runs through both ends of the length direction of the cylinder 11, the outer diameter dimension of the lifting driving rod 41 is matched with the inner diameter dimension of the through hole 111, a guide sliding rod 411 is convexly provided on the outer side wall of the lifting driving rod 41, a guide sliding slot 112 for the sliding of the guide sliding rod 411 is provided on the side wall of the cylinder 11, the guide sliding slot 112 is arranged in a spiral structure along the length direction thereof, and the lifting driving rod 41 can longitudinally slide in the through hole 111 while rotating along the length direction of the guide sliding slot 112. The lifting drive rod 41 can slide along the length direction of the guide sliding groove 112 in the rotating process, so that the lifting drive rod 41 can be driven to slide longitudinally, and the base 12 can be driven to lift, therefore, the lifting drive structure 4 can drive the base 12 to be separated from the ground, the lifting drive structure 4 can conveniently and rapidly drive the base 12 to lift, and the labor intensity of operators can be reduced.

The outer side wall of the end, far away from the base 12, of the lifting driving rod 41 is provided with a driving hole 412 for inserting the operating rod 413, the driving hole 412 is located on the outer side wall of the end portion, extending out of the through hole 111, of the lifting driving rod 41, the lifting driving rod 41 is sleeved with a pressing spring 414, one end of the pressing spring 414 abuts against the upper end face of the base 12, and the other end of the pressing spring abuts against the limiting step 113 on the inner side wall of the column. After the operating rod 413 is inserted into the driving hole 412, the lifting driving rod 41 can be driven to rotate through the operating rod 413, the force arm for rotating the lifting driving rod 41 can be increased through the operating rod 413, and therefore labor intensity of operators can be reduced. And the setting of pressing spring 414 can get rid of the clearance between direction slide bar 411 and the direction spout 112 to be favorable to improving the firm degree of arrangement of base 12, and then be favorable to improving the stability of placing of guardrail.

The lifting driving structure 4 comprises a driving screw 42 with one end fixedly connected with the base 12, the length direction of the driving screw 42 is consistent with that of the column 11, the driving screw 42 is in threaded connection with the column 11, and a locking nut 421 capable of abutting against the column 11 is in threaded connection with the driving screw 42. The driving screw 42 can drive the base 12 to slide in the rotating process, so that the lifting driving structure 4 can drive the base 12 to be separated from the ground, and in addition, a handle can be arranged at the end part of the driving screw 42 for conveniently driving the driving screw 42 to rotate. And the driving screw rod 42 can be locked and fixed on the column body 11 through the locking nut 421 after the guardrail is arranged in place, thereby being beneficial to improving the placing stability of the guardrail.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a highway removes guardrail, including stand (1) that two at least vertical intervals set up and connect guardrail unit (2) between two adjacent stands (1), guardrail unit (2) including horizontal setting and the last horizontal pole (21) and sheer pole (22) that are parallel to each other and vertical montant (23) that set up between last horizontal pole (21) and sheer pole (22), the both ends of going up horizontal pole (21) and sheer pole (22) are connected with two stands (1) are perpendicular respectively, montant (23) are provided with a plurality ofly and each montant (23) along the length direction interval arrangement setting of sheer pole (22), equal parallel arrangement between two adjacent montants (23), the both ends of montant (23) are connected characterized by with last horizontal pole (21) and sheer pole (22) are perpendicular respectively: the upright post (1) is connected with a rotating sliding seat (13) which is used for supplying an upper cross rod (21) to be installed in a sliding manner, the sliding direction of the rotating sliding seat (13) on the upright post (1) is the length direction of the upright post (1), the two ends of the length direction of the upper cross rod (21) are respectively connected with the two rotating sliding seats (13) in a rotating manner, the upper cross rod (21) is longitudinally arranged along the rotating axial direction of the rotating sliding seat (13), the upright post (1) is fixedly provided with a rotating seat (14) which is used for supplying a lower cross rod (22) to be installed, the two ends of the length direction of the lower cross rod (22) are respectively connected with the two rotating seats (14) in a rotating manner, the rotating axial direction of the lower cross rod (22) and the rotating seat (14) is longitudinally arranged and is coincided with the rotating axial direction of the upper cross rod (21) and the rotating sliding seat (13), the upright post (1) comprises a, the sliding direction of the base (12) on the column body (11) is the length direction sliding of the column body (11), and the column body (11) is provided with a lifting driving structure (4) capable of driving the base (12) to be separated from the ground;

one end of the vertical rod (23) in the length direction is fixedly connected on the lower cross rod (22), the other end of the vertical rod (23) is connected with the upper cross rod (21) in a sliding way, a through hole (211) for the vertical rod (23) to pass through is arranged on the upper cross rod (21), the through holes (211) are arranged by penetrating through the upper side surface and the lower side surface of the upper cross rod (21), the vertical rods (23) are longitudinally connected in the through holes (211) in a sliding manner, the vertical rod (23) is arranged in a hollow tubular structure, a railing (24) is connected in the vertical rod (23) in a longitudinal sliding manner, go up horizontal pole (21) and railing (24) between be provided with and be used for supplying horizontal pole (21) to drive transmission connection structure (3) that railing (24) vertically slided, go up horizontal pole (21) and can drive railing (24) through transmission connection structure (3) and upwards slide in montant (23) along montant (23) length direction horizontal pole (22) in-process that slides.

2. A road guardrail as claimed in claim 1, wherein: the transmission connecting structure (3) comprises a driving gear (31) which is rotatably connected in a vertical rod (23), a driving rack (32) which is arranged on an upper cross rod (21) and a driven rack (33) which is arranged on a railing (24), wherein the driving gear (31) comprises a rotating shaft (311) which is connected between two relative inner side walls of the vertical rod (23), an avoiding sliding groove (241) which is used for avoiding the rotating shaft (311) is arranged on the railing (24), the length direction of the avoiding sliding groove (241) is arranged along the sliding direction of the railing (24), the driving rack (32) is positioned in the vertical rod (23) and is fixedly connected with the upper cross rod (21), the length direction of the driving rack (32) is arranged along the length direction of the vertical rod (23), the driven rack (33) is fixedly connected with the railing (24), the length direction of the driven rack (33) is arranged along the sliding direction of the railing (24), the driving rack (32) and the driven rack (33) are respectively meshed with two opposite sides of the driving gear (31).

3. A road guardrail according to claim 1 or 2, characterized in that: a first reset component for driving the upper cross rod (21) to reset and slide is arranged between the upper cross rod (21) and the lower cross rod (22).

4. A road guardrail according to claim 1 or 2, characterized in that: and a second resetting part for driving the railing (24) to reset and slide is arranged between the railing (24) and the lower cross rod (22).

5. A road guardrail as claimed in claim 2, wherein: and a third reset component for driving the driving gear (31) to reset and rotate is arranged between the driving gear (31) and the vertical rod (23).

6. A road guardrail as claimed in claim 2, wherein: the pitch of the driving rack (32) is larger than that of the driven rack (33).

7. A road guardrail as claimed in claim 2, wherein: montant (23) and railing (24) all become the setting of C font structure along its length direction's cross section, are located the opening of montant (23) and railing (24) lateral wall and set up towards initiative rack (32), go up and be connected with connecting block (212) between horizontal pole (21) and the initiative rack (32), the width size of connecting block (212) is less than the width size of initiative rack (32), is located the opening both sides and connecting block (212) butt of montant (23) and railing (24) lateral wall.

8. A road guardrail as claimed in claim 1, wherein: lift drive structure (4) including one end and base (12) fixed connection's lift actuating lever (41), set up through-hole (111) that supply lift actuating lever (41) to peg graft on cylinder (11), through-hole (111) run through cylinder (11) length direction both ends, the external diameter size of lift actuating lever (41) and the internal diameter size looks adaptation of through-hole (111), the lateral wall epirelief of lift actuating lever (41) is equipped with direction slide bar (411), set up direction spout (112) that supply direction slide bar (411) to slide on the lateral wall of cylinder (11), direction spout (112) become helical structure setting along its length direction, and direction slide bar (411) can be at through-hole (111) internal rotation vertical sliding of in-process lift actuating lever (41) that the length direction of direction spout (112) slided.

9. A road guardrail as claimed in claim 8, wherein: offer on the lateral wall that base (12) one end was kept away from in lift actuating lever (41) and supply action bars (413) male driving hole (412), driving hole (412) are located lift actuating lever (41) and stretch out on the tip lateral wall of through-hole (111), the cover is equipped with pressing spring (414) on lift actuating lever (41), pressing spring (414) one end and base (12) up end butt, spacing step (113) butt on the other end and cylinder (11) inside wall.

10. A road guardrail as claimed in claim 1, wherein: lifting drive structure (4) is including one end and base (12) fixed connection's drive screw (42), the length direction of drive screw (42) keeps unanimous with the length direction of cylinder (11), drive screw (42) and cylinder (11) spiro union, the spiro union has lock nut (421) that can with cylinder (11) butt on drive screw (42).

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