Abstract:
A road traffic warning device includes a base, a cover body mounted on the base, and a collapsible warning frame mounted to the cover body. The base includes a controlling module. A folded triangular collapsible warning frame can be unfolded out of the cover body to create the warning device. Two wheels are mounted to two side of the base. The controlling module is configured to control the wheels to move the warning device to an effective warning position.

Description:
FIELD 
       [0001]    The subject matter herein generally relates to a road safety vehicle warning device. 
       BACKGROUND 
       [0002]    When a car breaks down on the road, a warning device is needed to be placed on a road, etc., to warn other road users. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]    Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. 
           [0004]      FIG. 1  is an exploded, isometric view of an exemplary embodiment of a warning device. 
           [0005]      FIG. 2  is an exploded, partially enlarged view of the warning device of  FIG. 1 , but viewed from another aspect. 
           [0006]      FIG. 3  is an assembled, isometric view of the warning device of  FIG. 1 . 
           [0007]      FIG. 4  is an assembled, isometric view of the warning device of  FIG. 1 , shown in a working state. 
       
    
    
     DETAILED DESCRIPTION 
       [0008]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein. 
         [0009]    Several definitions that apply throughout this disclosure will now be presented. 
         [0010]    The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “outside” refers to a region that is beyond the outermost confines of a physical object. The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising” means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in a so-described combination, group, series and the like. The use of adjectives of orientation such as “left(end or side of component)” or “right(end or side of component)” is for the purposes of specificity and consistency of indentation and unless otherwise stated does not signify any special constructional or functional purpose in the component or element. 
         [0011]    The present disclosure relates to a road traffic warning device. 
         [0012]    Referring to  FIGS. 1-2 , the warning device of the disclosure comprises a base  10 , two wheels  30  mounted to two sides of the base  10 , a cover body  50  mounted on the base  10 , a collapsible warning frame  70 , and two resilient members  90 . 
         [0013]    A controlling module  11  (e.g. motor) is mounted to the base  10 , and the controlling module  11  is configured to control the wheels  30  to move. 
         [0014]    The cover body  50  comprises a substantially semi-cylindrical cover  51 , and an operating member  55  mounted on a top of the cover  51 . An outside of the cover  51  defines a indentation  511 . A first raised platform  5111  is formed at a side wall of the indentation  511 . A second raised platform  5113  is formed at a front wall of the first raised platform  5111 , and the second raised platform  5113  is located below the first raised platform  5111 . A knob  5115  protrudes from a front side of a middle portion of the indentation  511 . A right end of the second raised platform  5113  defines a first receiving slot  513  running through the first raised platform  5111 . A left end of the second raised platform  5113  defines a second receiving slot  514 . A middle portion of the first raised platform  5111  defines a locking slot  515 . A front wall of the second raised platform  5113  defines a plurality of screw holes  516 . A left end of the cover  51  defines a recess  517  communicating with the indentation  511 . A bottom wall of the recess  517  defines a first locking hole  5171 , and two spaced second locking holes  5173  in front of the first locking hole  5171 . The right end of the indentation  511  defines a mounting hole  5117 . 
         [0015]    The operating member  55  comprises a head portion  551  and an operating portion  553  coupled to the head portion  551 . In at least one exemplary embodiment, the head portion  551  is substantially cylindrical, and the operating portion  553  is substantially lever-shaped. A post  555  protrudes from a bottom of the head portion  551 . A protrusion  557  protrudes from a bottom of the operating portion  553 . The post  555  comprises a plurality of spaced elastic hooks  5553  extending from the bottom of the head portion  551 . 
         [0016]    The collapsible warning frame  70  comprises a fixing plate  77 , a first frame  71 , a second frame  73  and two positioning blocks  75 . In at least one exemplary embodiment, the fixing plate  77 , the first frame  71 , and the second frame  73  are each substantially trapezoidal. A right end of the first frame  71  defines a substantially L-shaped first positioning slot  711  along a top wall and a right side wall of the first frame  71 . A left end of the first frame  71  defines a through hole  713 . A bottom wall of the left end of the first frame  71  defines a first notch  715 . A post  717  protrudes from a rear side of the first frame  71 . A left end of the second frame  73  defines a substantially L-shaped second positioning slot  731  along a top wall and a left side wall of the second frame  73 . A post  733  protrudes from a right end of the second frame  73 , and the post  733  comprises a plurality of spaced elastic hooks  7333  extending from a rear side wall of the second frame  73 . A bottom wall of the right end of the second frame  73  defines a second notch  735 . Each front side wall of the first frame  71  and the second frame  73  defines a groove  72 . The two positioning blocks  75  are substantially L-shaped. Each positioning block  75  defines a receiving hole  751 , and a magnet  752  is mounted in the receiving hole  751 . A bottom end of the middle of the fixing plate  77  defines a locking recess  771 . A post  773  protrudes from a left end of the fixing plate  77 . The post  773  comprises a plurality of spaced elastic hooks  7733  extending from the fixing plate  77 . A lower portion of the fixing plate  77  defines a plurality of spaced screw holes  775 . A front side of the fixing plate  77  defines a longitudinal groove  777 . 
         [0017]    In at least one exemplary embodiment, the two resilient members  90  are torsion springs. Each resilient member  90  comprises a resilient portion  91 , a first resilient rod  93  coupled to one end of the resilient portion  91 , and a second resilient rod  95  coupled to the other end of the resilient portion  91 . 
         [0018]    Referring to  FIG. 3 , to assemble the warning device, the two resilient members  90  are inserted in the first receiving slot  513  and the second receiving slot  514 . The resilient portions  91  and second resilient rods  95  of the two resilient members  90  are respectively received in the first receiving slot  513  and the second receiving slot  514 . The first resilient rod  93  of one resilient member  90  applies force to the front side wall of the first raised platform  5111 , and the first resilient rod  93  of the other resilient member  90  applies force to the front side wall of the second raised platform  5113 . A positioning block  75  is mounted in the first positioning slot  711  and in the second positioning slot  731 . The through hole  713  of the first frame  71  aligns with the post  773  of the fixing plate  77 , the first frame  71  is moved toward the post  773  of the fixing plate  77 , and the hooks  7733  are deformed to pass through the through hole  713  of the first frame  71 . The hooks  7733  then restore elastically and hook onto the rear side wall of the first frame  71 , the first frame  71  then being rotatably coupled to the fixing plate  77 . The knob  5115  of the cover  51  is locked in the locking recess  771  of the fixing plate  77 . The first resilient rod  93  of one resilient member  90  is compressed and received in the first notch  715  of the first frame  71 . The post  717  of the first frame  71  is locked in the locking slot  515  of the first raised platform  5111 , and the first frame  71  is located on the top of the second raised platform  5113 . A number of screws  100  are passed through the screw holes  775  of the fixing plate  77 , to be fastened in the screw holes  516  of the second raised platform  5113 . The fixing plate  77  is coupled to the cover  51 . The post  733  of the second frame  73  aligns with the mounting hole  5117  of the cover  51 . The second frame  73  is moved toward the mounting hole  5117 , and the first resilient rod  93  of the other resilient member  90  is compressed to be received in the second notch  735  of the second frame  73 . The hooks  7333  are deformed to pass through the mounting hole  5117  of the cover  51 , the hooks  7333  then restore to hook the outside of the mounting hole  5117 . The second frame  73  is located on the top of the first raised platform  5111 , and the second frame  73  is rotatably coupled to the cover  51 . The post  555  of the operating member  55  is aligned with the first locking hole  5171  of the cover  51 , and the protrusion  557  of the operating member  55  is aligned with the right second locking hole  5173  of the cover  51 . The operating member  55  is moved toward the recess  517 , the hooks  5553  are deformed to pass through the first locking hole  5171 , the hooks  5553  then restore to hook the outside of the first locking hole  5171 . The protrusion  557  is thereby locked in the right second locking hole  5173 . The operating portion  553  of the operating member  55  presses against the top of the collapsible warning frame  70 , the collapsible warning frame  70  is folded and received in the cover  51 . The cover  51  is mounted on the base  10 . A number of warning features, such as high-visibility indicators (LEDs  80 ) are mounted in the grooves  777  and  72 . 
         [0019]    Referring to  FIG. 4 , when the warning device is being used, the operating portion  553  is rotated, and the protrusion  557  of the operating member  55  is locked in the left second locking hole  5173 . The operating member  55  is separated from the collapsible warning frame  70 . The resilient members  90  restore, and the first frame  71  and the second frame  73  spring upward. The second frame  73  moves up along the post  717  until the top end of the first frame  71  is coupled to the second frame  73 , and the magnets  752  in the positioning blocks  75  are close enough to attract each other. The first frame  71  and the second frame  73  are positioned, and a triangle is cooperatively formed by the fixing plate  77 , the first frame  71 , and the second frame  73 . The controlling module  11  is controlled by a terminal device, and the controlling module  11  controls the warning device to move to a preset position. Other road traffic can easily see the warning given by the LEDs  80 . 
         [0020]    The embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the details, including matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims.