From branch area opening guardrail in removal type
Technical Field
The utility model belongs to the technical field of highway safety protection equipment, concretely relates to self-moving type median strip open guardrail.
Background
In order to facilitate the overhaul of vehicle traffic and the emergency traffic of vehicles during the maintenance of the highway, the median strip of the highway is provided with an opening at intervals. In order to ensure safe and orderly traffic, the opening of the section is usually provided with a guardrail to separate two sides of the highway, and the guardrail is opened when traffic demands exist.
At present, a central division strip opening guardrail usually adopts a multi-section connection mode, two end parts are fixed on a road surface, middle section guardrails are connected through a pin shaft, when passing needs exist, the pin shaft at the corresponding middle section guardrail is pulled out through manpower according to the size of a passing vehicle or the length of an opening, then the middle section guardrail is pushed to a nearby empty space, and the middle section guardrail is moved to a corresponding position to be connected and fixed through the pin shaft after the passing vehicle passes through. The multi-section connection type split open guardrail not only has low working efficiency, but also has larger danger when the guardrail is opened by manual operation on a highway.
SUMMERY OF THE UTILITY MODEL
The utility model provides a divide area open guardrail in self-moving type through application guide rail, guardrail translation motor, special construction's portable guardrail and portal, makes portable guardrail when possessing the anticollision function, realizes from opening the function, greatly reduces artifical intensity of labour, improves work efficiency and security to establish the basis for the automated control who realizes highway field product.
The utility model discloses technical scheme as follows:
from branch area opening guardrail in removal type, include
The door frames are arranged at two ends of the opening of the middle belt and comprise end part guide guardrails and guide frames; the guide frame comprises a base and a plurality of side upright posts; one end of the end part guide guardrail is fixed on the side upright post, and the other end of the end part guide guardrail facing to the opening direction is contracted and extended to form a smooth transition outer inclined plane; the guide frame is divided into an upper layer space and a lower layer space by a middle frame which is arranged between the side upright posts in parallel with the base; the highway guardrail is fixed on the side upright post through the transition guardrail;
and the guide rail is fixed on the base, arranged between the door frames along the opening direction of the middle belt and at least extended to the lower layer space.
Preferably, the guide rail is fixed to the base and penetrates through the gantry, and sufficient running length is left at two ends.
The guardrail translation device comprises a gear rack transmission mechanism and a motor arranged on the door frame, and an output shaft of the motor is provided with a gear of the gear rack transmission mechanism;
the movable guardrail is located in the lower-layer space, the rack matched with the gear is arranged along the direction of the guide rail, and the bottom of the movable guardrail is provided with a bilateral rail wheel matched with the guide rail.
Preferably, the upper space is provided with a scissor type lifting device, the scissor type lifting device comprises a scissor type lifting frame and a limiting upright post, and the limiting upright post is hung at the top of the scissor type lifting frame; a guide sleeve is arranged right above the middle frame deviating from the guide rail; when the scissor-fork type lifting frame is lifted up and down, the limiting upright post moves up and down through the guide sleeve; correspondingly, two ends of the movable guardrail are provided with limiting sleeves.
Preferably, a lifting platform is arranged at the top of the scissor type lifting frame along the direction of the opening, and the two limiting upright posts are symmetrically arranged at two ends of the lifting platform.
Preferably, the limiting upright post is hung on a bottom hanging lug of the lifting platform through a fisheye joint bearing, and the bottom surface of the limiting upright post is an arc-shaped surface.
Preferably, the scissor type lifting frame is fixed on the middle frame and comprises a scissor type hydraulic lifting frame.
Preferably, the base is provided with a limiting hole opposite to the guide sleeve.
Preferably, the base comprises a cement base.
Preferably, the movable guardrail comprises a plurality of layers of longitudinal trusses arranged along the direction of the opening and a middle bracket connected with the plurality of layers of longitudinal trusses; taking the middle bracket as a symmetry axis; at least two bilateral track wheels are symmetrically arranged at the front and back of the bottom of the longitudinal truss or part of the longitudinal truss to serve as a group of pulley blocks, and the number of the guide rails corresponds to the number of the bilateral track wheels in the group of the pulley blocks.
Preferably, the inner side of the side upright is provided with a guide wheel with an axis parallel to the axis of the side upright.
The moving method of the self-moving type center-divided open guardrail comprises the following steps:
s1, the self-moving type center-split opening guardrail is in a closed state, at the moment, the movable guardrail 5 completely closes the center-split opening, the scissor type lifting frame 61 is in a retraction state, and the limiting upright post 62 penetrates through the guide sleeve 1221 and the limiting sleeve 52 and is inserted into the limiting hole of the base 2;
s2, before the movable guard rail 5 is opened, the scissor lift is lifted to be in an extended state, and at this time, the limit post 62 is pulled out from the limit sleeve 52, but still located in the guide sleeve 1221;
s3, enabling the motor to rotate forward, enabling the movable guardrail 5 to move towards the side where the door frame is located, and after the movable guardrail is moved in place, closing the motor 42 and stopping the movable guardrail 5;
s4, enabling the passing vehicle to pass through the middle belt opening;
s5, the motor is reversed, the motor 42 is turned off after the movable guardrail 5 reversely moves to the right position, and the movable guardrail 5 stops moving;
s6, the scissor type lifting frame retracts, the limiting upright post 62 penetrates through the guide sleeve 1221 and the limiting sleeve 52 and is inserted into the limiting hole of the base 2, and the self-moving type center-parting open guardrail returns to a closed state.
Compared with the prior art, the utility model the advantage lies in:
1. from branch area opening guardrail in the removal type, the first time will be divided and take opening guardrail to change into automatic opening by artifical opening, through application guide rail, guardrail translation motor, special construction's portable guardrail and portal, make portable guardrail when possessing the anticollision function, realize from the function of opening, greatly reduce artifical intensity of labour, improve work efficiency and security to establish the basis for the automated control who realizes highway field product.
2. From branch area opening guardrail in removal type, respectively establish a tip portal at the branch area both ends to at the shelf location scissors fork elevating gear, when portable guardrail is in the closed condition, scissors fork elevating gear is in the contraction state, and its spacing stand stretches into the spacing hole on the base through the uide bushing on the portal and the spacing sleeve on the portable guardrail, also promptly for stretching into the underground, firmly inject portable guardrail and must not remove at fixed position, further improve the anticollision function of whole device. When passing demands exist, the scissor-type lifting device is in an extending state, the limiting upright posts rise from the limiting sleeves of the movable guardrails and stop acting after being pulled out, and then the gear rack transmission is driven by the motor of the sliding door to open the movable guardrails, so that vehicles can safely pass through openings of the central belts. The installation is convenient, the operation is simple, and the safety in the operation process is improved; the overhead lifting limiting upright post is adopted, so that the difficulty of underground construction is reduced, and the expense is saved; and the technical development of guardrail translation and rack and pinion transmission is pure and well-done, and the cost can be effectively controlled.
3. From branch area opening guardrail in removal type, through being fixed in the tip direction transition guardrail of side stand front end is connected with the leading truck, can go out the vehicle of collision steadily to lead to, and can not meet and lead to the fact bigger danger on the leading truck, and the leading truck rear end divide into two-layerly, and lower floor's space is used for making portable guardrail freely pass through. Meanwhile, the guide wheels are arranged on the inner sides of the side upright columns, so that the guide wheels play a role in guiding the guardrail in the moving process and can prevent the guardrail from directly colliding against the side upright columns when the guardrail turns over. The upper space is the installation space of the scissor-fork type lifting device, the middle frame is provided with the guide sleeve, and the limiting stand column is positioned in the guide sleeve in any state, so that the positioning precision of the limiting stand column is improved.
4. From branch area opening guardrail in removal type, set up the lug at the lift platform who cuts fork lift frame top, be connected with spacing stand through fisheye joint bearing, when realizing limit function, fisheye joint bearing each direction all can move about, can compensate again spacing stand because the error that the installation location caused. And the bottom of the limiting upright post is provided with a certain radian, so that the problem that the upper pipe and the lower pipe are staggered to cause no penetration in the penetration process is avoided.
5. From branch area open guardrail in removal type, portable guardrail increases the crashproof ability of guardrail including the vertical multilayer longitudinal truss and the intermediate strut who sets up, and adopts a plurality of bilateral rail wheels that the symmetry set up as a set of assembly pulley bottom the longitudinal truss, increases the stability of portable guardrail when the guide rail operation.
Drawings
Fig. 1 is a schematic view of the closed state of the self-moving center-split open guardrail of the present invention;
fig. 2 is a schematic view of the whole front view structure of the movable guardrail with split open guardrails in the self-moving type of the present invention;
fig. 3 is a schematic sectional view of the movable guard rail of the self-moving type center-split open guard rail of the present invention;
fig. 4 is a schematic three-dimensional structure diagram of the portal frame of the self-moving type center-divided open guardrail of the present invention;
fig. 5 is a front view of the self-moving scissor-type lifting device with a split guardrail;
fig. 6 is a schematic side view of the scissor-type crane with the self-moving center-split open guardrail of the present invention;
fig. 7 is a flow chart of the control method for the self-moving type center-split open guardrail of the present invention.
The reference numbers in the figures are:
the device comprises a gantry, 11 end part guide guardrails, 111 translation channels, 12 guide frames, 121 side upright posts, 122 middle frames, 1221 guide sleeves, 123 guide wheels, A upper space, B lower space, 2 bases, 3 guide rails, 4 guardrail translation devices, 41 gear rack transmission mechanisms, 411 racks, 42 motors, 5 movable guardrails, 51 bilateral track wheels, 52 limiting sleeves, 53 longitudinal trusses, 54 middle supports, 6 scissor lifting devices, 61 scissor lifting frames, 611 lifting platforms, 612 bottom hangers, 62 limiting upright posts, 63 fisheye joint bearings, 7 highway guardrails and 8 transition guardrails.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It should be noted that "inside" in the present invention refers to a direction close to the axis of the movable fence, and "outside" refers to a direction away from the axis of the movable fence.
A self-moving type center-split open guardrail comprises a portal 1, a guide rail 3, a guardrail translation device 4 and a movable guardrail 5, wherein the portal 1 is arranged at two ends of a center-split open, and the portal 1 comprises an end part guide guardrail 11 and a guide frame 12; the guide frame 12 comprises 6 side upright posts 121; one end of the end guide guardrail 11 is fixed to the side upright post 121, the other end towards the opening direction is inwardly contracted and extended to form a smooth transition outer inclined plane, a translation channel 111 is arranged at the middle position of the end guide guardrail 11, and the translation channel 111 is used for enabling the movable guardrail 5 to smoothly pass through the portal frame 1. The smooth transition outer ramp surface can guide a colliding vehicle smoothly out without causing greater risk of head-on collision against the guide frame 12. And 6 lateral upright posts 121 are symmetrically arranged at the front side and the rear side of the guide rail 3, the front 3 upright posts at the front side form a front bearing surface of the guide frame through welded oblique posts, and the rear 3 upright posts at the rear side form a rear bearing surface of the guide frame through welded oblique posts. A from branch area opening guardrail in removal type, when portable guardrail 5 is in the closure state, can be symmetrical structure around, also can be bilateral symmetry structure simultaneously.
The guide frame 12 is divided into an upper space a and a lower space B by a middle frame 122 arranged between the side uprights 121 in parallel to the base 2; the highway guardrail 7 is fixed on the side upright posts 121 through transition guardrails 8; the guide rail 3 is fixed on the base 2, arranged between the door frames 1 along the opening direction of the middle belt and at least extended to the lower layer space B; so that the movable fence 5 is smoothly opened and closed.
The guardrail translation device 4 comprises a gear rack transmission mechanism 41 and a motor 42 arranged near the gantry 1, wherein an output shaft of the motor 42 is provided with a gear of the gear rack transmission mechanism 41; correspondingly, a rack 411 of the rack and pinion transmission 41 is arranged along the guide rail 3.
The movable guardrail 5 is positioned in the lower-layer space B, and the bottom of the movable guardrail 5 is provided with a bilateral rail wheel 51 matched with the guide rail 3.
Preferably, the two ends of the movable guardrail 5 are provided with limit sleeves 52. The upper layer space A is provided with a scissor type lifting device 6, the scissor type lifting device 6 comprises a scissor type lifting frame 61 and a limiting upright post 62, and the limiting upright post 62 is hung at the top of the scissor type lifting frame 61; a guide sleeve 1221 is arranged right above the middle frame 122 deviating from the guide rail 3; when the scissor type lifting frame 61 is lifted up and down, the limiting upright column 62 is always positioned in the guide sleeve 1221 and moves up and down, so that the positioning precision of the limiting upright column 62 is improved. And when the movable guardrail 5 is in a closed state, the limiting upright post 62 passes through the guide sleeve 1221 and extends into the limiting sleeve 52, so that the positioning is realized.
And a lifting platform 611 is arranged at the top of the scissor type lifting frame 61 along the direction of the opening, and the two limit upright posts 62 are symmetrically arranged at two ends of the lifting platform 611.
The limit upright post 62 is suspended on the bottom hanging lug 612 of the lifting platform 611 through the fisheye joint bearing 63, and the fisheye joint bearing 63 can move in all directions, so that errors caused by installation and positioning can be compensated. And the bottom surface of the limiting upright post 62 is an arc-shaped surface, so that the problem that the upper pipe and the lower pipe are staggered to cause no penetration or clamping in the penetrating process is avoided.
The scissor type lifting frame 61 is fixed on the middle frame 122 and comprises a scissor type hydraulic lifting frame.
The base 2 is provided with a limiting hole opposite to the guide sleeve 1221. So that the limit post 62 passes through the limit sleeve 52 and is inserted into the base 2 made of concrete or cement, and the anti-collision function of the movable guardrail 5 is further improved.
The movable guardrail 5 comprises a plurality of layers of longitudinal girders 53 arranged along the opening trend and a middle bracket 54 connected with the plurality of layers of longitudinal girders; the middle bracket 54 is taken as a symmetry axis; the longitudinal truss 53 or the bottom of part of the longitudinal truss 53 is symmetrically provided with at least two bilateral track wheels 51 as a group of pulley blocks, the number of the guide rails 3 corresponds to the number of the bilateral track wheels 51 in the group of the pulley blocks, so that the stability of the movable guardrail 5 during operation on the guide rails 3 is improved.
The inner side of the side column 121 is provided with a guide wheel 123, and the axis of the guide wheel 123 is parallel to the axis of the side column 121. The movable guardrail 5 plays a guiding role in the opening and closing process of the movable guardrail and can prevent the movable guardrail 5 from directly colliding against the side columns 121 on two sides when the movable guardrail turns over.
Example 2
A control method of a self-moving type center-split open guardrail is used for controlling the self-moving type center-split open guardrail and comprises the following steps:
s1, the self-moving type center belt opening guardrail is in a closed state, at the moment, the movable guardrail 5 completely seals the center belt opening, the scissor type lifting frame 61 is in a retraction state, and the limit upright post 62 penetrates through the guide sleeve 1221 and the limit sleeve 52 and is inserted into the limit hole of the base 2;
s2, before the movable guard rail 5 is opened, the scissor lift is lifted to be in an extended state, and at this time, the limit post 62 is pulled out from the limit sleeve 52, but still located in the guide sleeve 1221;
s3, enabling the motor to rotate forward, enabling the movable guardrail 5 to move towards the side where the door frame is located, and after the movable guardrail is moved in place, closing the motor 42 and stopping the movable guardrail 5;
s4, enabling the passing vehicle to pass through the middle belt opening;
s5, the motor is reversed, the motor 42 is turned off after the movable guardrail 5 reversely moves to the right position, and the movable guardrail 5 stops moving;
s6, the scissor type lifting frame retracts, the limiting upright post 62 penetrates through the guide sleeve 1221 and the limiting sleeve 52 and is inserted into the limiting hole of the base 2, and the self-moving type center-parting open guardrail returns to a closed state.
It should be noted that the above-described embodiments may enable those skilled in the art to more fully understand the present invention, but do not limit the present invention in any way. Therefore, although the present invention has been described in detail with reference to the accompanying drawings and examples, it should be understood by those skilled in the art that the present invention can be modified or replaced by other equivalent elements, and in any case, all technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the scope of the present invention.