阅读说明：本技术 基于可调节长度的移动式公路施工用警示牌 (Movable type warning board for highway construction based on adjustable length ) 是由 潘昕 于 2020-11-18 设计创作，主要内容包括：本发明涉及公路施工警示技术领域,具体地说,涉及基于可调节长度的移动式公路施工用警示牌。其包括移动警示板,移动警示板的一侧设有拉长警示板,移动警示板和拉长警示板的底部均设有移动固定装置；移动警示板包括呈方形的移动放置板,移动放置板的一侧靠近中部的位置固定连接有呈方形的延长板,移动放置板的内部设有拉长装置；拉长警示板包括呈方形的拉长板,移动固定装置包括两个铰接架,两个铰接架之间铰接有左右对称的旋转板,旋转板一端的底部设有固定弧形板,旋转板的另一端的底部设有移动轮。本发明主要解决在放置警示牌时,警示牌无法伸长,需要使用其他的警示物作为辅助,比较麻烦的问题。(The invention relates to the technical field of highway construction warning, in particular to a movable type warning board for highway construction based on adjustable length. The mobile warning board comprises a mobile warning board, wherein an elongated warning board is arranged on one side of the mobile warning board, and mobile fixing devices are arranged at the bottoms of the mobile warning board and the elongated warning board; the movable warning board comprises a square movable placing board, a square extension board is fixedly connected to a position, close to the middle part, of one side of the movable placing board, and an extension device is arranged inside the movable placing board; the lengthening warning plate comprises a square lengthening plate, the movable fixing device comprises two hinged frames, a rotating plate is hinged between the two hinged frames and is bilaterally symmetrical, a fixed arc-shaped plate is arranged at the bottom of one end of the rotating plate, and a movable wheel is arranged at the bottom of the other end of the rotating plate. The invention mainly solves the problem that when the warning board is placed, the warning board cannot extend, other warning objects are needed to be used as assistance, and the problem is troublesome.)

1. Warning sign is used in construction of portable highway based on adjustable length, including removing warning board (1), its characterized in that: an elongated warning plate (2) is arranged on one side of the movable warning plate (1), and movable fixing devices (3) are arranged at the bottoms of the movable warning plate (1) and the elongated warning plate (2);

the mobile warning board (1) comprises a square mobile placing board (11), one side of the mobile placing board (11) is fixedly connected with a square extension board (12) close to the middle part, an elongation device (13) is arranged inside the mobile placing board (11), a top fixing groove (18) fixedly connected with a rubber strip inside is formed in the position, close to the middle part, of the upper end of the extension board (12), the elongation device (13) comprises a plurality of middle bearing devices (131), a single board hinge rod (132) and a double board hinge rod (133) which are mutually staggered and hinged are arranged between every two middle bearing devices (131), each middle bearing device (131) comprises an upper cylindrical inserting column (1311) and a lower cylindrical inserting column (1312), a lower inserting cavity (1313) matched with the upper inserting column (1311) is formed inside the lower inserting column (1312), one end of the upper inserting column (1311) is inserted into the lower inserting cavity (1313), the left side and the right side of one end, far away from each other, of the upper inserting column (1311) and the lower inserting column (1312) are fixedly connected with a hinged plate (1316), and two ends of the single-plate hinge rod (132) and the double-plate hinge rod (133) are hinged to the hinged plate (1316);

the lengthening warning plate (2) comprises a square lengthening plate (21), an extension plate placing groove (25) matched with the extension plate (12) and provided with one end penetrating through the lengthening plate (21) is formed in the lengthening plate (21), a positioning nail (22) is arranged at the position, close to one side, of the bottom of the lengthening plate (21), the positioning nail (22) comprises a positioning stud (221) in a threaded column, and the bottom end of the positioning stud (221) is fixedly connected with a hemispherical positioning ball head (222);

remove fixing device (3) and include two articulated framves (31), two articulated have bilateral symmetry's rotor plate (32) between articulated frame (31), the bottom of rotor plate (32) one end is equipped with fixed arc (34), the bottom of the other end of rotor plate (32) is equipped with removes wheel (36), is equipped with the upper surface of rotor plate (32) one end of fixed arc (34) is close to the fixed buffer spring of position fixedly connected with (35) at middle part, is equipped with the upper surface of rotor plate (32) one end of removing wheel (36) is close to the fixed hinge bar of position fixedly connected with (37) at middle part, the one end of fixed hinge bar (37) articulates there is middle part hinge bar (371), the one end of middle part hinge bar (371) articulates there is square slide (372), the one end of slide (372) is equipped with and promotes screw rod (373).

2. The warning sign for movable road construction based on adjustable length of claim 1, wherein: the side limiting strips (17) which are square strips are fixedly connected to the left side surface and the right side surface of the extension plate (12) in an up-and-down symmetrical mode, side limiting grooves (26) corresponding to the side limiting strips (17) are formed in the side walls of the extension plate placing grooves (25) respectively, the extension plate (12) is inserted into the extension plate placing grooves (25), and the side limiting strips (17) are inserted into the side limiting grooves (26) in a sliding mode.

3. The warning sign for movable road construction based on adjustable length of claim 1, wherein: extension plate (12) left and right sides is kept away from the one end that removes place board (11) and is connected with a plurality of screens pieces (19) along the direction fixedly connected with of extension plate (12) height, offer on the lateral wall about extension plate standing groove (25) with screens piece (19) corresponding screens groove (27), just one end of screens groove (27) runs through the one end of extension plate standing groove (25) lateral wall, the one end setting of screens piece (19) is in the inside of screens groove (27).

4. The warning sign for movable road construction based on adjustable length of claim 1, wherein: one end of the upper surface of the elongated plate (21), which is close to the middle of the elongated plate (12), is provided with a positioning threaded hole (28) matched with the positioning stud (221), the positioning stud (221) penetrates through the positioning threaded hole (28) and extends into the top fixing groove (18), and the positioning ball head (222) is in contact with a rubber strip in the top fixing groove (18).

5. The warning sign for movable road construction based on adjustable length of claim 1, wherein: the upper end fixedly connected with of locating stud (221) is circular shape head of a nail (223), fixedly connected with is swivel mount (224) of U-shaped on the lateral wall about head of a nail (223), the upside of swivel mount (224) is equipped with fender bracket (29) that are the U-shaped, the both ends fixed connection of fender bracket (29) is on the upper surface of extension board (21).

6. The warning sign for movable road construction based on adjustable length of claim 1, wherein: a square bottom fixing plate (14) is fixedly connected at the position of the bottom of the movable placing plate (11) close to the center, a square bottom fixed connecting plate (23) is fixedly connected at the position of the bottom of the movable placing plate (11) close to the center, the left side and the right side of one end of the bottom fixing plate (14) close to the stretching warning plate (2) are provided with side sliding grooves (15), one end of the side chute (15) is fixedly connected with a square chute stop block (16), the left side and the right side of one end of the bottom fixed connecting plate (23) close to the movable warning plate (1) are fixedly connected with strip-shaped connecting strips (24), one side of one end of the connecting strip (24) is fixedly connected with a square connecting fixture block (241), one end of the connecting strip (24) is inserted into the side sliding groove (15), and the connecting clamping block (241) is arranged inside the side sliding groove (15).

7. The warning sign for movable road construction based on adjustable length of claim 1, wherein: the inside of board (11) is placed in the removal is seted up one end and is run through the elongation device that removes and place board (11) and place chamber (111), the one side that the chamber (111) was placed to the elongation device has seted up T shape spout (112), elongation device (13) set up the inside that the chamber (111) was placed in the elongation device, the one end that single plate hinge bar (132) and double plate hinge bar (133) are close to T shape spout (112) articulates there is T shape slider (134), the one end setting of T shape slider (134) is in the inside of T shape spout (112).

8. The warning sign for movable road construction based on adjustable length of claim 1, wherein: the bottom of the middle bearing device (131) is provided with a supporting leg (135), the bottom of the lower connecting column (1312) is provided with a supporting column placing cavity (1314), the upper end and the lower end of the supporting column placing cavity (1314) are provided with supporting connection thread grooves (1315), the supporting leg (135) comprises a cylindrical supporting column (1351), the side walls of the upper end and the lower end of the supporting column (1351) are fixedly connected with supporting connection thread strips (1352), the bottom end of the supporting column (1351) is fixedly connected with a bottom cover (1353), the supporting column (1351) is inserted into the supporting column placing cavity (1314), and the supporting connection thread strips (1352) are in threaded connection with the supporting connection thread grooves (1315).

9. The warning sign for movable road construction based on adjustable length of claim 6, wherein: the rotary plate structure is characterized in that one end of the bottom of the rotary plate (32) close to the fixed arc plate (34) is fixedly connected with a fixed arc plate hinged frame (33), one end of the fixed arc plate (34) is hinged to the fixed arc plate hinged frame (33), the left side and the right side of the movable wheel (36) are connected with hinged strips (361) in an L shape through screws, and screws at the corners of the hinged strips (361) are connected to the left side and the right side of the rotary plate (32) in a rolling mode.

10. The warning sign for movable road construction based on adjustable length of claim 9, wherein: the top fixed connection of articulated frame (31) is in the bottom of bottom fixed plate (14) and bottom fixed connection board (23), the bottom of bottom fixed plate (14) and bottom fixed connection board (23) is seted up flutedly, the one end fixed connection of fixed buffer spring (35) is in the inside of recess, the equal fixedly connected with slide stopper (38) and screw rod fixed block (39) in bottom of bottom fixed plate (14) and bottom fixed connection board (23), slide stopper (38) are run through to the one end of slide (372), the one end screw thread of promotion screw rod (373) run through screw rod fixed block (39) and with promotion screw rod (373) fixed connection.

Technical Field

The invention relates to the technical field of highway construction warning, in particular to a movable type warning board for highway construction based on adjustable length.

Background

The highway construction enables to maintain the highway, guarantees the engineering that highway can normally use. At present, during highway construction, a highway warning board is used for blocking roads so as to remind and protect drivers of vehicles coming and going.

At present when using highway warning sign to remind driver's construction, can use a warning board to hang the warning poster, prevent that motorist from going into the job site by mistake, but when placing the warning sign, the warning sign can't extend, need use other warning thing as supplementary, and is more troublesome.

Disclosure of Invention

The invention aims to provide a movable type warning board for road construction based on adjustable length, so as to solve the problems in the background technology.

In order to achieve the purpose, the movable type warning board for highway construction based on adjustable length comprises a movable warning board, wherein an elongated warning board is arranged on one side of the movable warning board, and movable fixing devices are arranged at the bottoms of the movable warning board and the elongated warning board;

the movable warning board comprises a square movable placing board, a square extension board is fixedly connected at a position, close to the middle part, of one side of the movable placing board, an elongation device is arranged in the movable placing plate, a top fixing groove fixedly connected with a rubber strip in the upper end of the elongation plate is arranged at the position close to the middle part, the elongation device comprises a plurality of middle bearing devices, a single-plate hinge rod and a double-plate hinge rod which are mutually articulated are arranged between every two middle bearing devices, the middle supporting device comprises a cylindrical upper inserting column and a cylindrical lower inserting column, a lower inserting cavity matched with the upper inserting column is arranged in the lower inserting column, one end of the upper inserting column is inserted into the lower inserting cavity, the left side and the right side of the end, far away from each other, of the upper inserting column and the lower inserting column are fixedly connected with hinged plates, and two ends of the single-plate hinge rod and the double-plate hinge rod are hinged to the hinged plates;

the lengthened warning plate comprises a square lengthened plate, an extended plate placing groove matched with the extended plate is formed in the lengthened plate, one end of the extended plate placing groove penetrates through the lengthened plate, a positioning nail is arranged at a position, close to one side, of the bottom of the lengthened plate, the positioning nail comprises a positioning stud in a threaded column, and a hemispherical positioning ball head is fixedly connected to the bottom end of the positioning stud;

the movable fixing device comprises two hinged frames, wherein a bilateral symmetry rotary plate is hinged between the hinged frames, a fixed arc-shaped plate is arranged at the bottom of one end of the rotary plate, a movable wheel is arranged at the bottom of the other end of the rotary plate, a fixed buffer spring is fixedly connected to the position, close to the middle, of the upper surface of one end of the rotary plate of the fixed arc-shaped plate, a fixed hinge rod is fixedly connected to the position, close to the middle, of the upper surface of one end of the rotary plate of the movable wheel, a middle hinge rod is hinged to one end of the fixed hinge rod, a square sliding plate is hinged to one end of the middle hinge rod, and a pushing screw rod is arranged at.

As a further improvement of the technical scheme, the left side and the right side of the extension plate are fixedly connected with side limiting strips in a square strip shape in an up-and-down symmetrical manner, the side walls of the extension plate placing groove are respectively provided with side limiting grooves corresponding to the side limiting strips, the extension plate is inserted into the extension plate placing groove, and the side limiting strips are inserted into the side limiting grooves in a sliding manner.

As a further improvement of the technical scheme, one end of the extension plate, far away from the movable placing plate, of the left side and the right side of the extension plate is fixedly connected with a plurality of clamping blocks along the direction of the height of the extension plate, clamping grooves corresponding to the clamping blocks are formed in the left side wall and the right side wall of the extension plate placing groove, one end of each clamping groove penetrates through one end of the side wall of the extension plate placing groove, and one end of each clamping block is arranged inside each clamping groove.

As a further improvement of the technical scheme, a positioning threaded hole matched with the positioning stud is formed in the position, close to the middle part, of one end, close to the extension plate, of the upper surface of the extension plate, the positioning stud penetrates through the positioning threaded hole and extends to the inside of the top fixing groove, and the positioning ball head is in contact with the rubber strip in the top fixing groove.

As a further improvement of the technical scheme, the upper end fixedly connected with of the positioning stud is a circular nail cap, the left side wall and the right side wall of the nail cap are fixedly connected with rotary frames in U shapes, the upper side of each rotary frame is provided with a protection frame in a U shape, and two ends of each protection frame are fixedly connected to the upper surface of the elongated plate.

As a further improvement of the technical scheme, the position fixedly connected with that the bottom of the movable placing plate is close to the center is a square bottom fixing plate, the position fixedly connected with that the bottom of the movable placing plate is close to the center is a square bottom fixedly connected plate, the bottom fixing plate is close to the left side and the right side of one end of the elongated warning plate and is provided with a side chute, one end fixedly connected with of the side chute is a square chute stop block, the left side fixedly connected with that the bottom fixedly connected plate is close to one end of the movable warning plate is a strip-shaped connecting strip, one side fixedly connected with of one end of the connecting strip is a square connecting fixture block, one end of the connecting strip is inserted into the side chute, and the connecting fixture block is arranged inside the side chute.

As a further improvement of the technical scheme, an elongating device placing cavity is formed in the moving placing plate, one end of the elongating device placing cavity penetrates through the moving placing plate, a T-shaped sliding groove is formed in one side of the elongating device placing cavity, the elongating device is arranged in the elongating device placing cavity, a T-shaped sliding block is hinged to one ends of the single plate hinge rod and the double plate hinge rod, which are close to the T-shaped sliding groove, and one end of the T-shaped sliding block is arranged in the T-shaped sliding groove.

As a further improvement of the technical scheme, the bottom of the middle bearing device is provided with a supporting leg, the bottom of the lower connecting column is provided with a supporting column placing cavity, the upper end and the lower end of the supporting column placing cavity are provided with supporting connecting thread grooves, the supporting leg comprises a cylindrical supporting column, fixedly connected with supporting connecting thread strips are fixedly connected to the side walls of the upper end and the lower end of the supporting column, the bottom end of the supporting column is fixedly connected with a bottom cover, the supporting column is inserted into the supporting column placing cavity, and the supporting connecting thread strips are in threaded connection with the supporting connecting thread grooves.

As a further improvement of the technical scheme, one end of the rotating plate, which is close to the fixed arc-shaped plate, at the bottom of the rotating plate is fixedly connected with a fixed arc-shaped plate hinge frame, one end of the fixed arc-shaped plate is hinged with the fixed arc-shaped plate hinge frame, the left side and the right side of the moving wheel are connected with hinge strips in an L shape through screws, and screws at the corners of the hinge strips are connected to the left side and the right side of the rotating plate in a rolling manner.

As a further improvement of the technical scheme, the top end of the hinged frame is fixedly connected to the bottom of the bottom fixing plate and the bottom fixing and connecting plate, the bottom of the bottom fixing plate and the bottom fixing and connecting plate is provided with a groove, one end of the buffer spring is fixedly connected to the inside of the groove, a sliding plate limiting block and a screw rod fixing block are fixedly connected to the bottom of the bottom fixing plate and the bottom fixing and connecting plate, the sliding plate limiting block is penetrated through one end of the sliding plate, and one end of the pushing screw rod is penetrated through the screw rod fixing block and is fixedly connected with the pushing screw rod.

Compared with the prior art, the invention has the beneficial effects that:

1. in this warning sign is used in construction of portable highway based on adjustable length, what set up in the inside of removing the warning board can place the drawing device that stretches out in the board from the removal, when the use device warns, will draw out the drawing device from removing and placing the board for pull out construction range, avoided the warning sign when the warning, still need use the trouble of other warning objects.

2. In this warning sign is used in portable highway construction based on adjustable length, the supporting leg that sets up supports the position of elongation device, makes when using the elongation device, makes the elongation device can stably place, is convenient for elongate the normal use of device.

3. In this warning sign is used in construction of portable highway based on adjustable length, what set up can be moving warning board one side removal elongates the warning board, when hanging longer semaphore on the warning board, elongates the position of warning board in moving warning board one side through the regulation, changes the size of warning board, makes the warning sign can hang the warning semaphore, and the warning sign of being convenient for hangs the warning sign of equidimension not.

4. In this warning sign is used in construction of portable highway based on adjustable length, the removal fixing device who sets up adjusts the position of warning sign, through the position of adjusting the rotor plate, makes fixed arc and remove the wheel and contact respectively and keep away from ground to the removal of warning sign is adjusted in control and fixed, the use of the warning sign of being convenient for.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic structural view of a mobile warning board and a mobile fixing device in accordance with embodiment 1;

FIG. 3 is a schematic sectional view showing the movable warning board according to embodiment 1;

FIG. 4 is a schematic sectional view showing the movable standing board and the extension board according to example 1;

FIG. 5 is a schematic view showing the structure of the elongation device according to example 1;

FIG. 6 is a schematic sectional view showing a structure of a middle receiving apparatus according to embodiment 1;

FIG. 7 is a schematic structural view of the support leg of embodiment 1;

FIG. 8 is a schematic view showing the construction of an elongated warning plate and a mobile securing means in accordance with embodiment 1;

FIG. 9 is a schematic sectional view showing the elongated warning panel according to example 1;

FIG. 10 is a schematic view of the structure of a dowel of embodiment 1;

fig. 11 is a schematic structural view of the mobile fixing device in embodiment 1.

The various reference numbers in the figures mean:

1. moving the warning board; 11. moving the placing plate; 111. an elongated device placement chamber; 112. a T-shaped chute; 12. an extension plate; 13. an elongation device; 131. a middle support device; 1311. inserting a column upwards; 1312. a lower connecting column; 1313. a lower insert cavity; 1314. a support column placing cavity; 1315. supporting the connecting thread groove; 1316. a hinge plate; 132. a single plate hinge rod; 133. a double-plate hinge rod; 134. a T-shaped slider; 135. supporting legs; 1351. a support pillar; 1352. supporting and connecting the threaded strips; 1353. a bottom cover; 14. a bottom fixing plate; 15. a side chute; 16. a chute stop block; 17. side limit strips; 18. a top fixing groove; 19. a bit block;

2. lengthening the warning board; 21. stretching the plate; 22. positioning nails; 221. positioning the stud; 222. positioning a ball head; 223. a nail cap; 224. a rotating frame; 23. the bottom is fixed with a connecting plate; 24. a connecting strip; 241. connecting a clamping block; 25. an extension plate placing groove; 26. a side limiting groove; 27. a clamping groove; 28. positioning the threaded hole; 29. a protection frame;

3. moving the fixing device; 31. a hinged frame; 32. a rotating plate; 33. the fixed arc plate is hinged with a frame; 34. fixing the arc-shaped plate; 35. fixing a buffer spring; 36. a moving wheel; 361. a hinge strip; 37. fixing the twisting rod; 371. a middle twisting rod; 372. a slide plate; 373. pushing the screw rod; 38. a slide plate stopper; 39. and a screw rod fixing block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1

Referring to fig. 1 to 11, a length-adjustable warning sign for mobile highway construction is provided, which includes a mobile warning board 1, an elongated warning board 2 is disposed on one side of the mobile warning board 1, and mobile fixing devices 3 are disposed at the bottoms of the mobile warning board 1 and the elongated warning board 2;

the mobile warning board 1 comprises a square mobile placing board 11, a square extension board 12 is fixedly connected to a position, close to the middle, of one side of the mobile placing board 11, an elongation device 13 is arranged inside the mobile placing board 11, a top fixing groove 18 fixedly connected with a rubber strip is formed in a position, close to the middle, of the upper end of the extension board 12, the elongation device 13 comprises a plurality of middle connection devices 131, a single board hinge rod 132 and a double board hinge rod 133 which are hinged to each other in a staggered mode are arranged between every two middle connection devices 131, each middle connection device 131 comprises a cylindrical upper inserting column 1311 and a cylindrical lower connecting column 1312, a lower inserting cavity 1313 matched with the upper inserting column 1311 is formed in the lower connecting column 1312, one end of the upper inserting column hinge plate 1311 is inserted into the lower inserting cavity 1313 in an inserted mode, the left side and the right side of one end, far away from each other, of the upper inserting column 1311 and the lower connecting column 1316, and two ends of the single board hinge rod 132 and the;

in use, the mobile alarm board 1 of this embodiment pulls one end of the elongated device 13 to pull one end of the elongated device 13 out of the elongated device receiving chamber 111, moves the T-shaped slider 134 in the T-shaped sliding slot 112 toward each other, slides one end of the upper post 1311 in the lower chamber 1313, rotates the one-plate hinge rod 132 and one end of the two-plate hinge rod 133 about the position of the hinge plate 1316, grips and rotates the bottom cover 1353 to separate the support connection threaded bar 1352 from the support connection threaded groove 1315 when the elongated device 13 is pulled out, rotates the bottom cover 1353 to threadably connect the support connection threaded bar 1352 to the support connection threaded groove 1315 when the support connection threaded bar 1352 at the top of the support post 1351 contacts the support connection threaded groove 1315 at the bottom of the support post receiving chamber 1314, and contacts the bottom cover 1353 to the ground to support the elongated device 13. Allowing the elongated means 13 to be stably placed in the desired position.

The lengthening warning plate 2 comprises a square lengthening plate 21, an extension plate placing groove 25 matched with the extension plate 12 and provided with one end penetrating through the lengthening plate 21 is formed in the lengthening plate 21, a positioning nail 22 is arranged at a position, close to one side, of the bottom of the lengthening plate 21, the positioning nail 22 comprises a positioning stud 221 in a threaded column, and a hemispherical positioning ball head 222 is fixedly connected to the bottom end of the positioning stud 221;

when the elongated warning board 2 in the embodiment is used, the elongated warning board 2 is pulled, so that the elongated warning board 2 moves towards the direction far away from the movable warning board 1, the connecting clamping block 241 slides in the side sliding groove 15, the side limiting strip 17 and the clamping block 19 slide in the side limiting groove 26 and the clamping groove 27, after the elongated warning board 2 moves to a proper position, the nail cap 223 is held and rotated, one end of the positioning ball head 222 is contacted with the rubber strip inside the top fixing groove 18, the position of the elongated warning board 2 on the extension board 12 is fixed, and the movable warning board 1 and the elongated warning board 2 can be conveniently hung with warning slogans of different lengths.

Remove fixing device 3 and include two articulated framves 31, articulated between two articulated framves 31 have bilateral symmetry's rotor plate 32, the bottom of rotor plate 32 one end is equipped with fixed arc 34, the bottom of the other end of rotor plate 32 is equipped with removes wheel 36, the upper surface of the rotor plate 32 one end that is equipped with fixed arc 34 is close to the fixed buffer spring 35 of position fixedly connected with at middle part, the upper surface of the rotor plate 32 one end that is equipped with to remove wheel 36 is close to the fixed hinge pole 37 of position fixedly connected with at middle part, the one end of fixed hinge pole 37 articulates there is middle part hinge pole 371, the one end of middle part hinge pole 371 articulates there is square slide 372, the one end of slide 372 is equipped with the.

When the mobile fixing device 3 in this embodiment is used, when the warning board needs to be moved, the pushing screw 373 is held and rotated, so that the pushing screw 373 pushes the sliding plate 372 to move, the moving sliding plate 372 pushes the middle hinge rod 371 to make the middle hinge rod 371 drive one end of the fixed hinge rod 37 to move, the moving fixed hinge rod 37 moves the rotating plate 32 to rotate around the position where the rotating plate 32 is hinged to the hinge frame 31, the fixed buffer spring 35 is squeezed to contract, the moving wheel 36 contacts the ground, so that the warning board can be moved, when the warning board needs to be fixed, the pushing screw 373 is held and rotated, so that the pushing screw 373 drives the fixed hinge rod 37 to move, the fixed buffer spring 35 begins to relax, the other end of the rotating plate 32 is pushed to move downwards, the moving wheel 36 leaves the ground, the fixed arc-shaped plate 34 contacts the ground, and the warning.

Furthermore, the left and right sides of the extension board 12 are vertically and symmetrically fixedly connected with side limit strips 17 in a square strip shape, the side walls of the extension board placing groove 25 are respectively provided with side limit grooves 26 corresponding to the side limit strips 17, the extension board 12 is inserted into the extension board placing groove 25, the side limit strips 17 are inserted into the side limit grooves 26 in a sliding manner, one end of the left and right sides of the extension board 12 far away from the movable placing board 11 is fixedly connected with a plurality of clamping blocks 19 along the direction of the height of the extension board 12, the left and right side walls of the extension board placing groove 25 are provided with clamping grooves 27 corresponding to the clamping blocks 19, one end of each clamping groove 27 penetrates through one end of the side wall of the extension board placing groove 25, one end of each clamping block 19 is arranged inside each clamping groove 27, the position of the upper surface of the extension board 21 close to the middle part of the extension board 12 is provided with positioning threaded holes 28 matched with the positioning studs 221, the positioning stud 221 penetrates through the positioning threaded hole 28 and extends to the inside of the top fixing groove 18, the positioning ball head 222 is in contact with a rubber strip inside the top fixing groove 18, a square bottom fixing plate 14 is fixedly connected to a position, close to the center, of the bottom of the movable placing plate 11, a square bottom fixing connecting plate 23 is fixedly connected to a position, close to the center, of the bottom of the movable placing plate 11, side sliding grooves 15 are formed in the left side and the right side of one end, close to the elongated warning plate 2, of the bottom fixing plate 14, a square sliding groove stopper 16 is fixedly connected to one end of each side sliding groove 15, strip connecting strips 24 are fixedly connected to the left side and the right side of one end, close to the movable warning plate 1, of each bottom fixing connecting plate 23, a square connecting fixture block 241 is fixedly connected to one side of one end of each connecting strip 24, one end of each connecting fixture 241 is inserted into each side sliding groove 15, each connecting fixture 241, fixedly connected with is the swivel mount 224 of U-shaped on the lateral wall about the nail cap 223, the upside of swivel mount 224 is equipped with the fender bracket 29 that is the U-shaped, the both ends fixed connection of fender bracket 29 is on the upper surface of elongated plate 21, when warning slogan is hung to needs, through the pulling elongate warning board 2, make elongate warning board 2 keep away from removing warning board 1, the position that the extension warning slogan hung, fix the position of removing warning board 1 and elongate warning board 2 through location nail 22, make remove warning board 1 and elongate warning board 2 keep fixed, guarantee the stability that the warning slogan hung.

Specifically, an elongation device placing cavity 111 with one end penetrating through the movable placing plate 11 is formed in the movable placing plate 11, a T-shaped sliding groove 112 is formed in one side of the elongation device placing cavity 111, the elongation device 13 is arranged in the elongation device placing cavity 111, a single-plate hinge rod 132 and one end of a double-plate hinge rod 133 close to the T-shaped sliding groove 112 are hinged to a T-shaped slider 134, one end of the T-shaped slider 134 is arranged in the T-shaped sliding groove 112, a support leg 135 is arranged at the bottom of the middle supporting device 131, a support column placing cavity 1314 is formed at the bottom of the lower support column 1312, support connecting threaded grooves 1315 are formed at the upper end and the lower end of the support column placing cavity 1314, the support leg 135 comprises a cylindrical support column 1351, support connecting threaded bars 1352 are fixedly connected to the side walls at the upper end and the lower end of the support column 1351, a bottom cover 1353 is fixedly connected to the bottom, the support connection screw bar 1352 is screwed with the support connection screw groove 1315, and the drawn-out elongation device 13 is supported by the support legs 135, so that the elongation device 13 can be stably used after being drawn out.

Besides, a fixed arc plate hinge frame 33 is fixedly connected to one end of the bottom of the rotating plate 32 close to the fixed arc plate 34, one end of the fixed arc plate 34 is hinged to the fixed arc plate hinge frame 33, the left and right sides of the moving wheel 36 are in screw connection with an L-shaped hinge strip 361, screws at corners of the hinge strip 361 are in rolling connection with the left and right sides of the rotating plate 32, the top end of the hinge frame 31 is fixedly connected to the bottoms of the bottom fixed plate 14 and the bottom fixed connecting plate 23, the bottoms of the bottom fixed plate 14 and the bottom fixed connecting plate 23 are provided with grooves, one end of the fixed buffer spring 35 is fixedly connected inside the grooves, the bottoms of the bottom fixed plate 14 and the bottom fixed connecting plate 23 are both fixedly connected with a sliding plate limiting block 38 and a screw rod fixing block 39, one end of the sliding plate 372 penetrates through the sliding plate limiting block, through the position of adjusting on the mobile fixing device 3 to move driving wheel 36 and fixed arc 34, make mobile fixing device 3 fixed and remove, be convenient for mobile fixing device 3 fixed and remove warning board 1 and elongate warning board 2, make mobile warning board 1 and elongate warning board 2 facilitate the use.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.