Warning board for road construction

Abstract

The utility model relates to the technical field of road construction, in particular to a warning board for road construction, which comprises a skeleton frame body, rolling shafts are rotatably arranged at the top positions of two inner side surfaces of the skeleton frame body, a plurality of strands of pulling ropes are wound on the surfaces of the rolling shafts, an unfolded blueprint body is further arranged, and the pulling ropes are rolled through rotation of the rolling shafts. A driven gear is in meshed connection with a driving gear below the driven gear through a downward sliding guide seat, the driving gear is driven by the driven gear to rotate, and then a driven bevel gear drives a driving bevel gear and a screw rod to rotate; and the two screws rotate at the same time under the connecting action of the flat chain wheel and the chain, then the pressing block ascends to be attached to the surface of the balancing weight on the upper portion, supporting is achieved, the operation process is simple, the printed blueprint can be pasted and installed only by one person, and climbing operation is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a warning sign used for road construction. Background Art

[0002] Road construction warning signs, also known as construction frames and construction signs, are divided into fixed construction signs and movable construction signs. They are generally used in road construction sites, municipal maintenance projects, and the periphery of construction projects to warn driving vehicles or pedestrians.

[0003] During the road construction process, in order to remind passing vehicles and pedestrians, I need to make display boards to be posted at the reconstruction locations. However, when posting the blueprints, because some blueprints are too large, the length, width and height of the corresponding display boards are increased. When posting the blueprints, it often requires the cooperation of multiple people, and it is also necessary to perform high-altitude operations, so the posting process is rather cumbersome. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a warning sign for road construction, which solves the problem that the blueprint is too large, the blueprint posting often requires the cooperation of multiple people, and the high-altitude operation is also required, which makes the posting process more cumbersome.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a warning sign for road construction, comprising a skeleton frame body, at the top positions of the two inner side surfaces of the skeleton frame body, a winding shaft with multiple strands of traction ropes wrapped around the surface is rotatable, and an unfolded blueprint body is also provided, and the top and bottom edges of the blueprint body are respectively detachably installed with counterweight blocks, and the counterweight blocks on the top edge of the blueprint body are connected to the bottom ends of several traction ropes, and vertical screws are respectively rotated on both sides of the inner bottom surface of the skeleton frame body, and flat sprockets that are linked by chains are respectively fixed at the bottom positions of the screws, and a pressure block that penetrates the two screw threads and fits the surface of the counterweight block is provided in the skeleton frame body.

[0006] Furthermore, a driving bevel gear penetrating the screw is fixed on one of the flat sprockets, the driving bevel gear is meshed with a vertical driven bevel gear, one end of the driven bevel gear penetrates the skeleton frame body and extends outward to be fixed with a driving wheel, and a driven wheel driven by a chain is rotated on the outer side of the skeleton frame body.

[0007] Furthermore, a docking wheel is rotatably arranged on the outer side of the skeleton frame body, one end of the docking wheel penetrates the skeleton frame body and is connected to one end of the winding shaft, an auxiliary wheel is rotatably arranged on the outer side of the skeleton frame body and is driven by a chain with the docking wheel, and driving gears are installed on the auxiliary wheel and the driven wheel.

[0008] Furthermore, a guide seat is provided on the outer side of the skeleton frame body between the driven wheel and the auxiliary wheel for lifting up and down, and a driven gear meshing with two driving gears is rotatably provided on the end surface of the guide seat.

[0009] Furthermore, a guide rail penetrating the guide seat is fixed on the outer side of the skeleton frame body, and a positioning pin is provided between the guide rail and the guide seat.

[0010] Furthermore, a lighting lamp is arranged in the skeleton frame body, which is in contact with the back of the bottom counterweight block and is used for nighttime lighting.

[0011] Compared with the known public technology, the technical solution provided by the utility model has the following beneficial effects:

[0012] In the utility model, the traction rope is wound up by rotating the winding shaft, thereby driving the corresponding counterweight block to rise, so that the blueprint body is completely pulled up, and then the driven gear is meshed and connected with the driving gear below through the lower guide seat, and the driving gear is driven to rotate by the driven gear, so that the driven bevel gear drives the driving bevel gear and the screw to rotate, and the two screws are rotated at the same time under the connection of the flat sprocket and the chain, so that the pressure block rises to fit the surface of the counterweight block above, and support is achieved. The operation is simple, and only one person is needed to realize the posting and installation of the printed blueprint, and there is no need for climbing operations.

[0013] In the utility model, the guide rail is provided to ensure that the guide seat can only be lifted up and down, and as the guide seat is lifted up and down, the driven gear is meshed and connected with the driving gear at the corresponding position, and when the driven gear is meshed and connected with the driving gear at a certain position, the relative position of the guide seat and the guide rail can be fixed by passing the positioning pin through the guide seat and the guide rail, thereby ensuring a stable connection during meshing connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of a warning sign used for road construction;

[0016] Figure 2 A warning sign for road construction Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 A warning sign for road construction Figure 1The enlarged view of point A in the middle;

[0018] Figure 4 A warning sign for road construction Figure 2 The enlarged view of point B in the middle;

[0019] The numbers in the figure represent: 1. Skeleton frame body; 2. Blueprint body; 3. Docking wheel; 4. Driving gear; 5. Auxiliary wheel; 6. Guide rail; 7. Driven gear; 8. Driven wheel; 9. Driving wheel; 10. Guide seat; 11. Locating pin; 12. Pressure block; 13. Counterweight; 14. Screw; 15. Traction rope; 16. Reel; 17. Lighting lamp; 18. Driven bevel gear; 19. Driving bevel gear; 20. Flat sprocket. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model is further described below in conjunction with embodiments. Example

[0022] A warning sign for road construction in this embodiment, such as Figure 1-4 As shown, it includes a skeleton frame body 1, and a winding shaft 16 with multiple traction ropes 15 wound on the surface is rotatable at the top position of the two inner side surfaces of the skeleton frame body 1. An unfolded blueprint body 2 is also provided, and counterweight blocks 13 are detachably installed on the top and bottom edges of the blueprint body 2. The counterweight blocks 13 on the top edge of the blueprint body 2 are connected to the bottom ends of several traction ropes 15, and vertical screws 14 are rotated on both sides of the inner bottom surface of the skeleton frame body 1, and flat sprockets 20 that are linked by chains are fixed on the bottom positions of the screws 14. A pressing block 12 that is threadedly penetrated by the two screws 14 and is in contact with the surface of the counterweight block 13 is provided in the skeleton frame body 1.

[0023] By rotating the reel 16, it is convenient to wind or release the traction rope 15, and the blueprint body 2 and the counterweight block 13 are detachably installed by bolts penetrating the blueprint body 2 and the counterweight block 13, and the traction rope 15 is connected to the counterweight block 13, and the traction rope 15 is wound and released, so that the counterweight block 13 drives the blueprint body 2 to be lifted and unfolded, and the counterweight block 13 at the bottom can prevent the bottom edge of the blueprint body 2 from swinging, and the two flat sprockets 20 driven by the chain can ensure the synchronous rotation of the two screws 14, and the synchronous rotation of the two screws 14 can realize the smooth lifting and lowering of the pressure block 12.

[0024] like Figure 1 and Figure 3 As shown, a driving bevel gear 19 penetrating the screw rod 14 is fixed on one of the flat sprockets 20, and the driving bevel gear 19 is meshed with a vertical driven bevel gear 18, and one end of the driven bevel gear 18 penetrates the skeleton frame body 1 and extends outward to be fixed with a driving wheel 9, and the outer side of the skeleton frame body 1 rotates with a driven wheel 8 driven by a chain with the driving wheel 9.

[0025] By rotating the driven wheel 8, the driving wheel 9 drives the driven bevel gear 18 to rotate under the transmission action of the chain, and then the meshing driving bevel gear 19 drives the screw 14 and the flat sprocket 20 to rotate.

[0026] like Figure 1 and Figure 3 As shown, a docking wheel 3 is rotated on the outer side of the skeleton frame body 1, one end of the docking wheel 3 passes through the skeleton frame body 1 and is fixedly connected to one end of the winding shaft 16, and an auxiliary wheel 5 is rotated on the outer side of the skeleton frame body 1 and is driven by a chain with the docking wheel 3, and a driving gear 4 is installed on the auxiliary wheel 5 and the driven wheel 8.

[0027] The auxiliary wheel 5 is driven to rotate by the driving gear 4 above, and then the docking wheel 3 drives the winding shaft 16 to rotate under the transmission action of the chain, thereby realizing the winding and release of the traction rope 15.

[0028] like Figure 3 As shown, a guide seat 10 is provided on the outer side of the skeleton frame body 1 between the driven wheel 8 and the auxiliary wheel 5 for lifting and lowering, and a driven gear 7 meshingly connected with two driving gears 4 is rotatably provided on the end surface of the guide seat 10 .

[0029] It is convenient to ascend or descend through the guide seat 10, so as to realize the meshing connection between the driven gear 7 on the guide seat 10 and the driving gear 4 at the corresponding position.

[0030] like Figure 3 As shown, a guide rail 6 penetrating the guide seat 10 is fixed on the outer side of the skeleton frame body 1 , and a positioning pin 11 is provided between the guide rail 6 and the guide seat 10 .

[0031] The guide rail 6 ensures the stability of the guide seat 10 when it is raised and lowered, and the positioning pin 11 passes through the upper and lower parts of the guide rail 6, that is, when the driven gear 7 is engaged with the upper or lower driving gear 4, the positioning pin 11 passes through the guide seat 10 and the guide rail 6 to fix the position of the guide seat 10.

[0032] like Figure 4 As shown, a lighting lamp 17 is provided in the skeleton frame body 1 and is in contact with the back of the bottom counterweight block 13 and is used for nighttime lighting. The lighting lamp 17 is electrically connected to an external power source through a control switch.

[0033] Working principle: the upper sliding guide seat 10 realizes the meshing connection between the driven gear 7 and the upper driving gear 4, connects the top edge of the blueprint body 2 to the counterweight 13 at the bottom end of the traction rope 15, and the bottom edge of the blueprint body 2 is additionally connected with a counterweight 13. The rotation of the driven gear 7 drives the upper driving gear 4 to rotate, thereby realizing the rotation of the auxiliary wheel 5. Under the transmission action of the chain, the docking wheel 3 and the winding shaft 16 are driven to rotate. The traction rope 15 is wound up by the rotation of the winding shaft 16, thereby driving the corresponding counterweight 13 rises to fully pull up the blueprint body 2, and then the driven gear 7 is meshed and connected with the driving gear 4 below through the lower guide seat 10, and the driving gear 4 is driven to rotate by the driven gear 7, so that the driven bevel gear 18 drives the driving bevel gear 19 and the screw 14 to rotate, and the two screws 14 rotate at the same time under the connection of the flat sprocket 20 and the chain, so that the pressure block 12 rises to fit the surface of the counterweight block 13 above, and the support is achieved, that is, the smooth installation of the blueprint body 2 is achieved.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A warning sign for road construction, characterized in that: The invention comprises a skeleton frame body (1), wherein a reel (16) having a plurality of traction ropes (15) wound around the surface is rotatably mounted at the top positions of the two inner side surfaces of the skeleton frame body (1), and an unfolded blueprint body (2) is also provided, wherein counterweight blocks (13) are detachably mounted at the top and bottom sides of the blueprint body (2), and the counterweight blocks (13) at the top side of the blueprint body (2) are connected to the bottom ends of a plurality of traction ropes (15), and vertical screw rods (14) are rotatably mounted at both sides of the inner bottom surface of the skeleton frame body (1), and flat sprocket wheels (20) which are linked by chains are fixed at the bottom positions of the screw rods (14), and a pressing block (12) which is threadedly penetrated by two screw rods (14) and is in contact with the surface of the counterweight block (13) is provided in the skeleton frame body (1).

2. A warning sign for road construction according to claim 1, characterized in that: A driving bevel gear (19) penetrating the screw rod (14) is fixed on one of the flat sprockets (20), the driving bevel gear (19) meshing with a vertical driven bevel gear (18), one end of the driven bevel gear (18) penetrating the skeleton frame body (1) and extending outwardly to be fixed with a driving wheel (9), and a driven wheel (8) driven by a chain and connected to the driving wheel (9) is rotatably disposed on the outer side of the skeleton frame body (1).

3. A warning sign for road construction according to claim 2, characterized in that: A docking wheel (3) is rotatably mounted on the outer side surface of the skeleton frame body (1), one end of the docking wheel (3) penetrates the skeleton frame body (1) and is fixedly connected to one end of a reel (16), an auxiliary wheel (5) is rotatably mounted on the outer side edge of the skeleton frame body (1) and is driven by a chain with the docking wheel (3), and a driving gear (4) is mounted on both the auxiliary wheel (5) and the driven wheel (8).

4. A warning sign for road construction according to claim 3, characterized in that: A guide seat (10) is provided on the outer side of the skeleton frame body (1) between the driven wheel (8) and the auxiliary wheel (5) for lifting up and down, and a driven gear (7) is rotatably provided on the end surface of the guide seat (10) for meshing connection with the two driving gears (4).

5. A warning sign for road construction according to claim 4, characterized in that: A guide rail (6) penetrating the guide seat (10) is fixed on the outer side of the skeleton frame body (1), and a positioning pin (11) is provided penetrating between the guide rail (6) and the guide seat (10).

6. A warning sign for road construction according to claim 1, characterized in that: A lighting lamp (17) is arranged in the skeleton frame body (1) and is fitted to the back of the bottom counterweight block (13) and is used for nighttime lighting.

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