阅读说明：本技术 一种用于桥梁施工的临时安全警示装置 (temporary safety warning device for bridge construction ) 是由 翟冬青 于 2019-08-21 设计创作，主要内容包括：本发明涉及一种用于桥梁施工的临时安全警示装置,包括折叠式警示牌、固定架、主框、两个辅助装置和缓冲底座,所述的主框的上端安装有折叠式警示牌,主框的后端安装有固定架,主框的左右两端设有两个滑动槽,滑动槽内设有辅助装置,主框的下端安装有缓冲底座。本发明可以解决现有警示牌通常为整块板面构成,非工作状态时占用空间大,且由于警示牌面积较大,单人难以抬起搬运,运输较为困难,警示语通常使用反光材料喷涂在警示牌上,替换警示语时需要整体更换警示牌,更换麻烦,且反光材料经雨水冲刷导致颜色变淡,人员需要定期维护上色等难题。(The invention relates to a temporary safety warning device for bridge construction, which comprises a foldable warning board, a fixing frame, a main frame, two auxiliary devices and a buffer base, wherein the foldable warning board is installed at the upper end of the main frame, the fixing frame is installed at the rear end of the main frame, two sliding grooves are formed in the left end and the right end of the main frame, the auxiliary devices are arranged in the sliding grooves, and the buffer base is installed at the lower end of the main frame. The invention can solve the problems that the existing warning board is usually formed by a whole board, the occupied space is large when the warning board is in a non-working state, the warning board is difficult to lift and carry by a single person due to large area, the warning words are usually sprayed on the warning board by using a reflective material, the warning board needs to be integrally replaced when the warning words are replaced, the replacement is troublesome, the color of the reflective material is lightened due to rain wash, personnel need to regularly maintain and color, and the like.)

1. The utility model provides a interim safety warning device for bridge construction, includes foldable warning sign (1), mount (2), main frame (3), two auxiliary device (4) and buffering base (5), its characterized in that: the foldable warning board (1) is installed at the upper end of the main frame (3), the fixing frame (2) is installed at the rear end of the main frame (3), two sliding grooves are formed in the left end and the right end of the main frame (3), the auxiliary devices (4) are arranged in the sliding grooves, and the buffer base (5) is installed at the lower end of the main frame (3);

the foldable warning board (1) comprises a supporting rod (11), two first folded plates (12), two second folded plates (13), a first module (14) and a second module (15), wherein the left end and the right end of the supporting rod (11) are connected with the two first folded plates (12) through hinges, the first folded plates (12) are symmetrically provided with the first module (14), the outer ends of the first folded plates (12) are connected with the second folded plates (13) through hinges, the second folded plates (13) are symmetrically provided with the second module (15), and the outer ends of the second folded plates (13) are of triangular structures;

the first module (14) and the second module (15) are of the same structure with the same structure and the same size, the first module (14) comprises an extrusion die (141), a clamping front frame (142), an extrusion rear plate (143), a connecting spring (144), a connecting slide block (145), a sealing plate (146) and identification paper (147), the extrusion die (141) is installed on the first folded plate (12), the clamping front frame (142) is arranged in the extrusion die (141), the clamping front frame (142) is connected with the connecting slide block (145) in a sliding fit mode, the connecting slide block (145) is installed at the lower end of the extrusion rear plate (143), the sealing plate (146) is installed at the upper end of the extrusion rear plate (143), the connecting spring (144) is connected between the clamping front frame (142) and the extrusion rear plate (143), the identification paper (147) is inserted between the clamping front frame (142) and the extrusion rear plate (143), and an extrusion cavity is formed in the extrusion die (141), the rear side surface of the upper end of the extrusion cavity is of a structure which gradually inclines forwards from top to bottom;

The auxiliary device (4) comprises an extension spring (41), an in-out rod (42), universal wheels (43), pedal columns (44), a pedal type limiting mechanism (45) and a connecting column (46), the in-out rod (42) is connected with a sliding groove in a sliding fit mode, the extension spring (41) is connected between the in-out rod (42) and the sliding groove, the universal wheels (43) are installed on the lower side of the outer end of the in-out rod (42), the pedal columns (44) are installed on the rear side of the outer end of the in-out rod (42), the pedal type limiting mechanism (45) is installed on the upper side of the outer end of the main frame (3), the connecting column (46) is installed on the outer end of the in-out rod (42), and the upper end of the connecting column (46) is connected with the second folded;

Buffer base (5) including supporting base (51), pivot (52), two buffer stop blocks (53), two baffles (54) and buffer spring (55), the middle part of supporting base (51) is equipped with the circular slot, the circular slot symmetry is equipped with two buffer stop blocks (53), pivot (52) are installed through the bearing in the middle part of circular slot, install on main frame (3) the upper end of pivot (52), two baffles (54) are installed at both ends about pivot (52), baffle (54) link to each other with buffer stop block (53) through buffer spring (55), both ends are equipped with two draw-in grooves about supporting base (51).

2. A temporary safety warning device for bridge construction according to claim 1, wherein: the pedal type limiting mechanism (45) comprises an L frame (451), a first spring (452), an insertion block (453), a propping frame (454) and a second spring (455), the L frame (451) is installed on a main frame (3), the L frame (451) is connected with the insertion block (453) in a sliding fit mode, the insertion block (453) is connected with the L frame (451) through the first spring (452), the rear end of the L frame (451) is connected with the propping frame (454) through a pin shaft, and the propping frame (454) is connected with the L frame (451) through the second spring (455).

3. A temporary safety warning device for bridge construction according to claim 2, wherein: the front end of the propping frame (454) is of a structure which gradually inclines upwards from back to front, the front end of the propping frame (454) is provided with a roller through a pin shaft, and the rear end of the propping frame (454) is provided with a pedal.

4. A temporary safety warning device for bridge construction according to claim 1, wherein: extrusion mould (141) constitute for transparent plastic material, and the lower extreme of extrusion mould (141) is equipped with two screens grooves, extrusion mould (141) inside is equipped with the extrusion groove, and the rear end upside in extrusion groove from the last structure that down inclines forward gradually.

5. A temporary safety warning device for bridge construction according to claim 1, wherein: the clamping front frame (142) is made of transparent plastic materials, the lower end of the clamping front frame (142) is connected with the clamping block through a pin shaft, and the clamping block corresponds to the clamping groove in structure.

6. a temporary safety warning device for bridge construction according to claim 1, wherein: mount (2) including support (21), three hornblocks (22), reset spring (23) and protective sheath (24), three hornblocks (22) are installed to the upper end of support (21), three hornblocks (22) are linked to each other with folded plate (12) rear end through reset spring (23), reset spring (23) outside cover is equipped with protective sheath (24).

7. A temporary safety warning device for bridge construction according to claim 1, wherein: the inner end of the in-out rod (42) is provided with a limiting block, the lower end of the in-out rod (42) is provided with a groove, and a rolling steel ball is arranged in the groove.

8. A temporary safety warning device for bridge construction according to claim 1, wherein: the buffer limiting blocks (53) are of arc-shaped structures, the two buffer limiting blocks (53) are arranged in front and back, and the baffle (54) is positioned between the two buffer limiting blocks (53).

9. A temporary safety warning device for bridge construction according to claim 1, wherein: the marking paper (147) is coated with warning characters of reflective materials.

Technical Field

The invention relates to the field of warning devices for bridge construction, in particular to a temporary safety warning device for bridge construction.

Background

the bridge, generally indicate to erect in rivers, lakes and seas, make structures that vehicle pedestrian can pass through smoothly, and in the place of carrying out the bridge construction, people can put at the bridge head and the tail with warning sign, warning poster to remind vehicle and crowd that come and go, however, current warning sign often has following problem:

1. The existing warning board is generally formed by a whole board surface, occupies a large space when in a non-working state, and is difficult to lift and carry by a single person and difficult to transport due to a large area of the warning board; 2. the warning sign uses reflecting material spraying on the warning sign usually, needs whole change warning sign when replacement warning sign, and it is troublesome to change, and reflecting material leads to the colour to fade through the rainwash, and the personnel need regularly maintain to color.

disclosure of Invention

Technical problem to be solved

The invention can solve the problems that the existing warning board is usually formed by a whole board, the occupied space is large when the warning board is in a non-working state, the warning board is difficult to lift and carry by a single person due to large area, the warning words are usually sprayed on the warning board by using a reflective material, the warning board needs to be integrally replaced when the warning words are replaced, the replacement is troublesome, the color of the reflective material is lightened due to rain wash, personnel need to regularly maintain and color, and the like.

(II) technical scheme

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a interim safety warning device for bridge construction, includes foldable warning sign, mount, main frame, two auxiliary device and buffering base, the upper end of main frame install foldable warning sign, the mount is installed to the rear end of main frame, both ends are equipped with two sliding trays about the main frame, are equipped with auxiliary device in the sliding tray, buffering base is installed to the lower extreme of main frame.

Foldable warning sign include the bracing piece, two folded plates No. two, a module and No. two modules, both ends link to each other with two folded plates through the hinge about the bracing piece, a module is installed to the symmetry on the folded plate, the outer end of a folded plate passes through the hinge and links to each other with No. two folded plates, No. two modules are installed to the symmetry on the folded plate, and the outer end of No. two folded plates is the triangle-shaped structure, reduce the windage, foldable warning sign is foldable structure, conveniently pack up, occupation space is little under the non-operating condition, insert warning statement in a module and No. two modules, totally closed centre gripping has prolonged reflecting material's the time of fading.

The first module and the second module are of the same structure with the same structure and size, the first module comprises an extrusion die, a clamping front frame, an extrusion rear plate, a connecting spring, a connecting slide block, a sealing plate and identification paper, the extrusion die is arranged on the first folded plate, the clamping front frame is arranged in the extrusion die, the clamping front frame is connected with the connecting slide block in a sliding fit mode, the connecting slide block is arranged at the lower end of the extrusion rear plate, the sealing plate is arranged at the upper end of the extrusion rear plate, the connecting spring is connected between the clamping front frame and the extrusion rear plate, the identification paper is inserted between the clamping front frame and the extrusion rear plate, an extrusion cavity is formed in the extrusion die, the rear side surface of the upper end of the extrusion cavity is of a structure which gradually inclines forwards from top to bottom, and before the identification paper is inserted and the extrusion rear plate moves backwards under the elastic action of the connecting spring during specific work, so that an insertion gap is reserved between the clamping front frame, afterwards, insert the centre gripping fore-stock with the identification paper, between the extrusion back plate, afterwards, insert the extrusion intracavity with the centre gripping fore-stock and the extrusion back plate is whole downwards, the extrusion back plate is at the forward motion under the extrusion of extrusion chamber trailing flank, the gap between centre gripping fore-stock and the extrusion back plate reduces gradually, press from both sides tightly the identification paper up to centre gripping fore-stock and extrusion back plate, the closing plate seals to the extrusion mould upper end and shelters from, totally closed centre gripping has prolonged reflecting material's the time that fades, and the identification paper is changed conveniently.

Auxiliary device include extension spring, the business turn over pole, the universal wheel, the pedal post, formula stop gear and spliced pole are stepped on to the foot, the business turn over pole passes through sliding fit's mode and links to each other with the sliding tray, even there is extension spring between business turn over pole and the sliding tray, the universal wheel is installed to the outer end downside of business turn over pole, the pedal post is installed to the outer end rear side of business turn over pole, formula stop gear is stepped on to the outer end upside of main frame, the spliced pole is installed to the outer end of business turn over pole, the upper end of spliced pole passes through the bearing and links to each other with No. two folded plates, in concrete during operation, when foldable warning sign need expand, personnel's foot is stepped on the pedal post and is followed outward and is moved the pedal post, the business turn over pole stretches out in step, formula stop gear is fixed a position to the business turn over pole that stretches out.

The buffer base including supporting the base, the apparatus further comprises a rotating shaft, two buffer limiting blocks, two baffles and a buffer spring, the middle part of supporting the base is equipped with the circular slot, the symmetry is equipped with two buffer limiting blocks in the circular slot, the pivot is installed through the bearing at the middle part of circular slot, install on the main frame the upper end of pivot, two baffles are installed at both ends about the pivot, the baffle passes through buffer spring and links to each other with buffer limiting block, both ends are equipped with two card income grooves about supporting the base, concrete during operation, because the foldable warning sign area that expandes is great, probably blow it when wind-force is great, buffer base moves in two buffer limiting blocks through two baffles, but the small circle rotates, help foldable warning sign reduces the windage, the possibility of blowing over has been reduced.

Preferably, the pedal type limiting mechanism comprises an L frame, a first spring, an insertion block, a support frame and a second spring, the L frame is installed on the main frame and is connected with the insertion block in a sliding fit mode, the insertion block is connected with the L frame through the first spring, the rear end of the L frame is connected with the support frame through a pin shaft, and the support frame is connected with the L frame through the second spring.

Preferably, the extrusion die be transparent plastic material and constitute, and the lower extreme of extrusion die is equipped with two screens grooves, the inside extrusion groove that is equipped with of extrusion die, and the rear end upside in extrusion groove from last down for the structure that inclines forward gradually.

preferably, the centre gripping fore-stock constitute for the transparent plastic material, the lower extreme of centre gripping fore-stock links to each other with the screens piece through the round pin axle, and the structure is corresponding between screens piece and the screens groove.

preferably, the mount include support, triangle piece, reset spring and protective sheath, the triangle piece is installed to the upper end of support, the triangle piece passes through reset spring and links to each other with folded plate rear end No. one, the outside cover of reset spring is equipped with the protective sheath.

Preferably, the inner end of the in-out rod is provided with a limiting block, the lower end of the in-out rod is provided with a groove, and a rolling steel ball is arranged in the groove.

Preferably, the front end of the support frame is of a structure which gradually inclines upwards from back to front, the front end of the support frame is provided with a roller through a pin shaft, and the rear end of the support frame is provided with a pedal.

Preferably, the buffer limiting blocks are of arc-shaped structures, the two buffer limiting blocks are arranged in a front-back mode, and the baffle is located between the two buffer limiting blocks.

Preferably, the identification paper is coated with a warning font of a reflective material.

(III) advantageous effects

1. The temporary safety warning device for bridge construction provided by the invention adopts a folding structure, can be quickly folded and unfolded, can be carried by a single person in a short distance, occupies small space in a non-working state, is suitable for batch transportation, only needs to replace identification paper in a first module and a second module when warning words are replaced, and is clamped in a sealing manner, so that the rainwater is prevented from being washed;

2. according to the temporary safety warning device for bridge construction, the auxiliary device drives the foldable warning board to be unfolded and folded in a foot-stepping mode, so that labor is saved;

3. According to the temporary safety warning device for bridge construction, the buffer base drives the folding warning board to rotate in a small range, and the influence of wind resistance is reduced.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a first configuration of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of the installation of module I of the present invention;

FIG. 4 is a schematic structural view of the present invention between the main frame, the extension spring, the in-out rod and the pedal type position-limiting mechanism;

FIG. 5 is an enlarged view of the invention in section X of FIG. 2;

FIG. 6 is an enlarged view of a portion of the invention in the direction Y of FIG. 1;

Fig. 7 is a schematic view of the operation between the first and second folding plates of the present invention.

Detailed Description

embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.

The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.

As shown in fig. 1 to 7, a temporary safety warning device for bridge construction comprises a folding warning board 1, a fixing frame 2, a main frame 3, two auxiliary devices 4 and a buffer base 5, wherein the folding warning board 1 is installed at the upper end of the main frame 3, the fixing frame 2 is installed at the rear end of the main frame 3, two sliding grooves are formed in the left end and the right end of the main frame 3, the auxiliary devices 4 are arranged in the sliding grooves, and the buffer base 5 is installed at the lower end of the main frame 3.

The auxiliary device 4 comprises an extension spring 41, an in-out rod 42, a universal wheel 43, a pedal column 44, a pedal type limiting mechanism 45 and a connecting column 46, the in-out rod 42 is connected with a sliding groove in a sliding fit mode, the extension spring 41 is connected between the in-out rod 42 and the sliding groove, the universal wheel 43 is installed on the lower side of the outer end of the in-out rod 42, the pedal column 44 is installed on the rear side of the outer end of the in-out rod 42, the pedal type limiting mechanism 45 is installed on the upper side of the outer end of the main frame 3, the connecting column 46 is installed on the outer end of the in-out rod 42, the upper end of the connecting column 46 is connected with the second folded plate 13 through, when the foldable warning board 1 needs to be unfolded, a person steps on the pedal post 44 and pushes the pedal post 44 outwards, the in-out rod 42 extends out synchronously, the pedal type limiting mechanism 45 positions the extending in-out rod 42, the universal wheel 43 assists in sliding, and the auxiliary device 4 controls the in-out of the in-out rod 42 through stepping of the foot.

the inner end of the in-out rod 42 is provided with a limiting block, the limiting block and the insert 453 can be clamped for limiting, the lower end of the in-out rod 42 is provided with a groove, and a rolling steel ball is arranged in the groove to reduce friction.

The pedal type limiting mechanism 45 comprises an L frame 451, a first spring 452, an insertion block 453, a propping frame 454 and a second spring 455, the L frame 451 is installed on the main frame 3, the L frame 451 is connected with the insertion block 453 in a sliding fit mode, the insertion block 453 is connected with the L frame 451 through the first spring 452, the rear end of the L frame 451 is connected with the propping frame 454 through a pin shaft, the propping frame 454 is connected with the L frame 451 through the second spring 455, when the foldable warning board 1 needs to be folded and folded in specific work, a person's foot is stepped downwards to prop the propping frame 454 and prop up the insertion block 453 through the propping frame 454, and the in-out rod 42 moves inwards under the assistance of the extension spring 41 until the universal wheel 43 enters the clamping groove.

the front end of the propping frame 454 is gradually inclined upwards from back to front, the front end of the propping frame 454 is provided with a roller through a pin shaft, so that the propping is convenient, and the rear end of the propping frame 454 is provided with a pedal, so that the foot can conveniently step on.

Mount 2 include support 21, triangle piece 22, reset spring 23 and protective sheath 24, triangle piece 22 is installed to the upper end of support 21, triangle piece 22 links to each other with folded plate 12 rear end through reset spring 23, the outside cover of reset spring 23 is equipped with protective sheath 24, concrete during operation, when business turn over pole 42 inwards moves under extension spring 41's supplementary, reset spring 23 drives folded plate 12 and draws the inclined plane department to triangle piece 22, has made things convenient for folding packing up of foldable warning sign 1.

Foldable warning sign 1 include bracing piece 11, two folded plate 12, two folded plate 13, module 14 and No. two modules 15, both ends link to each other with two folded plate 12 through the hinge about bracing piece 11, a module 14 is installed to the symmetry on folded plate 12, the outer end of folded plate 12 passes through the hinge and links to each other with No. two folded plate 13, No. two module 15 are installed to the symmetry on No. two folded plate 13, and the outer end of No. two folded plate 13 is the triangle-shaped structure, reduce the windage, foldable warning sign 1 is foldable structure, conveniently pack up, occupation space is little under the non-operating condition, insert the warning statement in module 14 and No. two modules 15, totally closed centre gripping, the fade time of reflecting material has been prolonged.

The first module 14 and the second module 15 have the same structure with the same structure and size, the first module 14 comprises an extrusion die 141, a clamping front frame 142, an extrusion rear plate 143, a connecting spring 144, a connecting slider 145, a sealing plate 146 and identification paper 147, the extrusion die 141 is installed on the first folded plate 12, the extrusion die 141 is internally provided with the clamping front frame 142, the clamping front frame 142 is connected with the connecting slider 145 in a sliding fit manner, the connecting slider 145 is installed at the lower end of the extrusion rear plate 143, the upper end of the extrusion rear plate 143 is provided with the sealing plate 146, the connecting spring 144 is connected between the clamping front frame 142 and the extrusion rear plate 143, the identification paper 147 is inserted between the clamping front frame 142 and the extrusion rear plate 143, the extrusion die 141 is internally provided with an extrusion cavity, the rear side surface of the upper end of the extrusion cavity is of a structure which gradually inclines forwards downwards, when in specific work, the identification paper 147 is inserted into the extrusion rear plate 143 and displaces backwards under the elastic action of the connecting spring, the clamping front frame 142 and the extrusion rear plate 143 are ensured to leave insertion gaps, then the identification paper 147 is inserted into the clamping front frame 142 and the extrusion rear plate 143, then the clamping front frame 142 and the extrusion rear plate 143 are integrally inserted into the extrusion cavity downwards, the extrusion rear plate 143 moves forwards under the extrusion of the rear side face of the extrusion cavity, the gaps between the clamping front frame 142 and the extrusion rear plate 143 are gradually reduced until the clamping front frame 142 and the extrusion rear plate 143 clamp the identification paper 147, the sealing plate 146 seals and shields the upper end of the extrusion die 141, the totally-closed clamping is realized, the fading time of the reflective material is prolonged, and the identification paper 147 is convenient to replace.

Extrusion mould 141 constitute for transparent plastic material, and extrusion mould 141's lower extreme is equipped with two screens grooves, the inside extrusion groove that is equipped with of extrusion mould 141, and the rear end upside in extrusion groove is from last down for the structure that slopes forward gradually, convenient extrusion.

The centre gripping fore-stock 142 constitute for the transparent plastic material, the lower extreme of centre gripping fore-stock 142 links to each other with the screens piece through the round pin axle, and the structure is corresponding between screens piece and the screens groove, and specific during operation, centre gripping fore-stock 142 inserts extrusion die 141 downwards, until the screens piece gets into the screens inslot, rotate the ninety degrees location of screens piece to centre gripping fore-stock 142.

The marking paper 147 is coated with a warning character of a reflective material.

The buffer base 5 comprises a support base 51, a rotating shaft 52, two buffer limiting blocks 53, two baffles 54 and a buffer spring 55, a circular groove is formed in the middle of the support base 51, the two buffer limiting blocks 53 are symmetrically arranged in the circular groove, the rotating shaft 52 is installed in the middle of the circular groove through a bearing, the upper end of the rotating shaft 52 is installed on the main frame 3, the two baffles 54 are installed at the left end and the right end of the rotating shaft 52, the baffles 54 are connected with the buffer limiting blocks 53 through the buffer spring 55, the two clamping grooves are formed in the left end and the right end of the support base 51, during specific work, due to the fact that the unfolded foldable warning board 1 is large in area, when wind power is large, the foldable warning board can be blown over when the wind power is large, the buffer base 5 moves in the two buffer limiting blocks 53 through the two baffles 54, the foldable warning board 1 can rotate.

The buffer limiting blocks 53 are of arc-shaped structures, the two buffer limiting blocks 53 are arranged in a front-back mode, the baffle 54 is located between the two buffer limiting blocks 53, the baffle rotates in a small range, and wind resistance is reduced.

When in work: s1: temporary placement: the two inventions are respectively pushed to the head and the tail of the bridge;

s2, unfolding the folding warning board 1: the personnel step on the pedal post 44 and then push the pedal post 44 outwards, the in-out rod 42 extends synchronously until the limiting block and the inserting block 453 are clamped, the in-out rod 42 keeps the current position, and at the moment, the folding warning board 1 is in an unfolded state so as to be used for warning;

S3, reducing wind resistance during unfolding: because the unfolded foldable warning board 1 has a large area and can be blown over when wind power is large, the buffer base 5 moves in the two buffer limiting blocks 53 through the two baffles 54, and the foldable warning board 1 can rotate in a small range, so that the foldable warning board 1 is helped to reduce wind resistance and the possibility of blowing over is reduced;

s4, folding and folding the folding warning board 1: the foot of the person steps downwards to abut against the frame 454, the abutting against frame 454 jacks up the insert block 453, the in-out rod 42 moves inwards under the assistance of the extension spring 41, and meanwhile, the return spring 23 drives the first folded plate 12 to be pulled to the inclined plane of the triangular block 22, so that the folding and folding difficulty is reduced;

S5, when the label paper 147 needs to be replaced: after the foldable warning board 1 is unfolded, the clamping block is rotated ninety degrees, the clamping front frame 142 can be pulled out, the identification paper 147 is taken out for replacement, the clamping front frame 142 is inserted into the extrusion die 141 downwards again until the clamping block enters the clamping groove, the clamping front frame 142 is positioned by rotating the clamping block ninety degrees in the reverse direction, and at the moment, the new identification paper 147 is seamlessly clamped.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

industrial applicability

As described above, in the temporary safety warning device of the present invention, the foldable warning board 1 is of a foldable structure, can be folded and unfolded quickly, can be carried by a single person in a short distance, occupies a small space in a non-operating state, and is suitable for mass transportation, and when the warning words are replaced, only the identification paper 147 inside the first module 14 and the second module 15 needs to be replaced, and is clamped in a sealing manner, so that the rain water is prevented from being washed away.