Warning light bar

Abstract

The present invention relates to a warning row of lights, comprising a row of lights body, the row of lights body comprising a lampshade and a lamp body arranged in the lampshade, the lampshade comprising an upper cover and a bottom cover that are interlocked, an upper screw hole is arranged on the top of the upper cover, the bottom cover is provided with a lower screw hole corresponding to the upper screw hole, a connecting screw screwed on the lower screw hole is inserted in the upper screw hole, a flow guide device is arranged on the bottom inner wall of the bottom cover, the flow guide device comprises an annular water retaining plate arranged around the lower screw hole, the annular water retaining plate is arranged on the bottom cover to form a flow guide hole cavity, the upper screw hole corresponds to the position of the flow guide hole cavity, and a drainage port connecting the flow guide hole cavity with the outside is arranged at the bottom of the flow guide hole cavity. The present invention has a drainage structure designed at the screw hole, which has the advantage of good waterproof performance.

Description

Technical Field

[0001] The invention relates to a warning light. Background Art

[0002] Warning lights are generally used to maintain road safety, usually on police cars, engineering vehicles, fire trucks, ambulances, security management vehicles, road maintenance vehicles and other equipment.

[0003] Warning light bars are usually directly exposed to the outside world, so their overall waterproof sealing performance has become one of the technical issues that need to be paid attention to and solved. The existing warning light bar includes a light bar body and a mounting bracket for mounting the light bar body on the vehicle. The light bar body includes a lampshade, which includes an upper cover and a bottom cover. The lamp body is arranged along the periphery in the cavity formed by the buckling of the upper cover and the bottom cover. The upper cover and the bottom cover are connected by screws, and the installation position of the screws is located on the top surface of the upper cover. In general, the screws seal the screw holes, and the end faces of the screw hole columns on the upper cover and the bottom cover are against each other, which can form a certain sealing effect. However, in some harsh environments, such as heavy rain, long-term accumulation of a large amount of water on the top surface of the light bar, etc., and the fixing position of the screws is located on the top surface of the lampshade, in harsh environments, when a large amount of rainwater is flushed, there is a risk of water seeping into the lampshade at the screw holes. Summary of the invention

[0004] Purpose of the invention: To overcome the defects of the prior art, the present invention provides a warning row light with a drainage structure designed at the screw hole and good waterproof performance.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A warning row of lights, comprising a row of lights body, the row of lights body comprising a lampshade and a lamp body arranged in the lampshade, the lampshade comprising an upper cover and a bottom cover which are buckled together, an upper screw hole is arranged on the top of the upper cover, the bottom cover is provided with a lower screw hole which corresponds to the upper screw hole, a connecting screw which is screwed on the lower screw hole is inserted in the upper screw hole, and the characteristic is that a guide device is arranged on the bottom inner wall of the bottom cover, the guide device comprises an annular water retaining plate arranged around the lower screw hole, the annular water retaining plate surrounds a guide hole cavity on the bottom cover, the upper screw hole corresponds to the position of the guide hole cavity, and a drainage port which connects the guide hole cavity with the outside is arranged at the bottom of the guide hole cavity.

[0007] By adopting the above technical solution, an annular water retaining plate is arranged on the outer periphery of the lower screw hole, and the seepage formed at the upper screw hole and the lower screw hole enters the diversion hole cavity. The water retaining plate blocks the seepage and prevents the water from flowing to other places inside the lampshade. The accumulated water in the diversion hole cavity is discharged through the drain port, thereby improving the waterproof performance of the warning row light.

[0008] Preferably, the end surface of the hole opening of the lower screw hole corresponding to the inner side of the bottom cover is in abutment with the end surface of the hole opening of the upper screw hole corresponding to the inner side of the upper cover. Under this structural design, the end surfaces of the upper screw hole and the lower screw hole are abutted against each other and support each other, ensuring that the connecting screws are firmly and reliably locked and form a seal, thereby improving waterproofness.

[0009] Preferably, a sealing sleeve is provided on the connecting screw, and the sealing sleeve is placed at the outer hole section of the upper screw hole. Under this structural design, the design of the sealing sleeve realizes waterproof sealing on the outer side of the upper screw hole and the connecting screw, reducing the risk of water seepage through the upper screw hole.

[0010] Preferably, the upper end of the sealing sleeve has a trumpet-shaped elastic wedge-tightening part with elastic deformation ability, the outer peripheral surface and inner hole peripheral surface of the elastic wedge-tightening part are both conical surfaces, the outer peripheral conical surface of the elastic wedge-tightening part contacts and seals with the wall of the upper screw hole, and the inner hole conical surface of the elastic wedge-tightening part forms a conical hole. Under this structural design, the upper end of the sealing sleeve adopts a trumpet-shaped elastic wedge-tightening part design, and the conical hole of the elastic wedge-tightening part facilitates the sealing sleeve to be inserted into the connecting screw, while making the elastic wedge-tightening part have better elastic deformation ability, the outer circumferential surface of the elastic wedge-tightening part is wedged into the upper screw hole, and a good contact seal is formed after the elastic wedge-tightening part is elastically deformed, thereby improving the waterproof sealing performance.

[0011] Preferably, a sealing gasket is sleeved on the connecting screw, and the sealing gasket is sandwiched between the inner opening of the upper screw hole and the inner opening end surface of the lower screw hole. Under this structural design, the sealing gasket further improves the waterproof sealing performance of the connecting screw.

[0012] Preferably, the row of lamps body is formed by splicing a plurality of lamp holder units along the length direction, the lamp holder unit comprises an upper cover unit and a bottom cover unit which are snapped together to form a cavity, the upper cover units of the respective lamp holder units are spliced ​​together to form the upper cover, and the bottom cover units of the respective lamp holder units are spliced ​​together to form the bottom cover, an upper snap-fit ​​structure is provided on the circumferential edge of the upper cover unit, a lower snap-fit ​​structure is provided on the circumferential edge of the bottom cover unit, the upper cover unit and the bottom cover unit are snap-fitted with each other via the upper snap-fit ​​structure and the lower snap-fit ​​structure and are locked and connected via connecting screws, a rubber sealing ring is provided between the upper snap-fit ​​structure and the lower snap-fit ​​structure, the upper snap-fit ​​structure comprises an annular snap-fit ​​groove arranged around the circumferential edge of the upper cover unit, the lower snap-fit ​​structure comprises an annular protruding tongue arranged around the circumferential edge of the bottom cover unit, the rubber sealing gasket comprises a sealing ring body with a U-shaped cross-section, the sealing ring body is placed in the annular snap-fit ​​groove, the opening of the sealing ring body faces the protruding tongue, and the protruding tongue is inserted in the opening groove of the sealing ring body. Under this structural design, the row of lights is assembled from a plurality of lamp holder units for ease of processing, so that the upper cover and the bottom cover are divided into the upper cover unit and the bottom cover unit of each lamp holder unit, and the lamp holder unit is buckled together to form an independent inner cavity, and the buckling structure of the upper cover unit and the bottom cover unit adopts a concave-convex fit and has a "U"-shaped sealing ring body, so that each lamp holder unit achieves good waterproof sealing performance.

[0013] Preferably, the radial sides of the protruding tongue have annular step surfaces arranged around the protruding tongue, the radial two surrounding edges of the sealing ring body correspond to the step surface positions one by one, the surrounding edge of the sealing ring body located on the radial inner side corresponds to one end of the "U"-shaped opening and has a radial skirt extending laterally, the radial skirt is sandwiched between the end of the plate body of the upper cover unit corresponding to the radial inner side of the buckling groove and the step surface, the plate body of the upper cover unit corresponding to the radial outer side of the buckling groove extends downward to form an extended cover plate, and the bottom cover unit is placed in the cavity surrounded by the extended cover plate. Under this structural design, the bottom cover unit is embedded in the bottom of the upper cover unit, and the structure of the upper cover unit and the bottom cover unit buckling and sealing is in the extended cover plate, which is overall beautiful and reliable in sealing, and a radial skirt is provided between the plate body and the step surface on the inner side of the buckling groove to achieve good sealing.

[0014] Preferably, the top surface of the upper cover is provided with a profile plate for connecting the upper cover units in series, and the top surface of each upper cover unit is provided with a profile insertion slot arranged along the splicing direction of the lamp holder unit, and the profile plate is sequentially inserted into the profile insertion slot of each upper cover unit, and the upper screw hole is located in the profile insertion slot, and the profile plate is provided with a countersunk hole corresponding to the position of the upper screw hole, and the head of the connecting screw is placed in the countersunk hole. Under this structural design, each upper cover unit is inserted into the profile plate through the profile insertion slot to form an upper cover, which is convenient for assembly, and the profile plate is provided with a countersunk hole, and the head of the connecting screw is placed in the countersunk hole.

[0015] Preferably, the bottom of the bottom cover has a wire outlet hole, and a waterproof wall surrounding the wire outlet hole is raised on one side of the bottom cover located inside the lampshade. Under this structural design, a waterproof wall is provided on the side of the wire outlet hole located inside the lampshade, so that a port elevation design is realized at one end of the wire outlet hole located inside the lampshade, thereby preventing water from entering the lampshade through the wire outlet hole and improving the waterproof effect.

[0016] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a warning light bar according to a specific embodiment of the present invention;

[0018] Figure 2 A top view of a warning light bar according to a specific embodiment of the present invention;

[0019] Figure 3 An exploded view of a warning bar light according to a specific embodiment of the present invention;

[0020] Figure 4 for Figure 2 Section view along line AA;

[0021] Figure 5 for Figure 4 A partial enlarged view of part B in the middle;

[0022] Figure 6 for Figure 4 A partial enlarged view of part C in the middle;

[0023] Figure 7 It is a bottom view of the warning light bar after the splicing bottom plate is removed from the specific embodiment of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of a bottom cover unit located at an edge position in a specific embodiment of the present invention;

[0025] Fig. 9 This is a top view of a warning light bar according to a second specific embodiment of the present invention;

[0026] Fig.10 for Fig. 9 Sectional view along line DD;

[0027] Fig.11 for Fig.10 Partial enlarged view of part E in the middle;

[0028] Fig.12 It is an exploded view of a lamp holder unit of a warning light bar located at an edge position according to a second specific embodiment of the present invention;

[0029] Fig.13 This is an exploded view of a warning bar light according to a third specific embodiment of the present invention;

[0030] Upper cover 1, upper screw hole 11, upper cover unit 1-1, buckling groove 1-11, upper cover unit 1-1 corresponds to the plate body 1-12 on the radial inner side of the buckling groove 1-11, upper cover unit 1-1 corresponds to the plate body 1-13 on the radial outer side of the buckling groove 1-11, extension cover plate 1-14, profile insertion slot 1-15, screw positioning hole 1-16, locking screw 1-17, bottom cover 2, bottom cover unit 2-1, tongue 2-11, step surface 2-12, lower screw connection hole 2-16, drainage gap 2-17, diversion hole cavity 20, lower screw hole 21, water retaining plate 22, drainage port 23, outlet hole 24, waterproof Water enclosure 25, screw assembly column 26, positioning column 27, lamp body mounting screw 28, lamp body 3, lamp body main body 31, lamp body mounting foot 32, fixing plate 321, assembly bayonet 322, positioning mounting hole 323, connecting screw 4, sealing sleeve 5, wedging portion 51, outer peripheral conical surface 511, inner hole conical surface 512, sealing gasket 6, profile plate 7, countersunk hole 71, rubber sealing ring 8, sealing ring main body 81, radial inner surrounding edge 81-1 of sealing ring main body 81, radial outer surrounding edge 81-2 of sealing ring main body 81, opening groove 811, radial skirt 82, splicing base plate 9, lamp holder unit I. DETAILED DESCRIPTION

[0031] See attached Figures 1 to 8 A warning row of lights disclosed in the present invention comprises a row of lights body and a mounting bracket, the row of lights body comprises a lampshade and a lamp body 3 arranged in the lampshade, the lampshade comprises an upper cover 1 and a bottom cover 2 which are buckled together, an upper screw hole 11 is arranged on the top of the upper cover 1, the bottom cover 2 is provided with a lower screw hole 21 which corresponds to the upper screw hole 11, a connecting screw 4 which is screwed on the lower screw hole 21 is inserted in the upper screw hole 11, a flow guide device is arranged on the inner wall of the bottom of the bottom cover 2, the flow guide device comprises an annular water retaining plate 22 which is arranged around the lower screw hole 21, the annular water retaining plate 22 forms a flow guide cavity 20 on the bottom cover 2, the upper screw hole 11 corresponds to the position of the flow guide cavity 20, and a drainage port 23 which connects the flow guide cavity 20 with the outside is arranged at the bottom of the flow guide cavity 20. An annular water retaining plate is arranged on the periphery of the lower screw hole, and the seepage formed at the upper screw hole and the lower screw hole enters the diversion hole cavity. The water retaining plate blocks the seepage and prevents the water from flowing to other places inside the lampshade. The accumulated water in the diversion hole cavity is discharged through the drain port, thereby improving the waterproof performance of the warning row light.

[0032] The hole end surface of the lower screw hole 21 corresponding to the inner side of the bottom cover 2 is in abutment with the hole end surface of the upper screw hole 11 corresponding to the inner side of the upper cover 1 .

[0033] In order to further improve the waterproof performance, a sealing sleeve 5 is sleeved on the connecting screw 4, and the sealing sleeve 5 is placed at the outer hole section of the upper screw hole 11. The outer side of the upper screw hole and the connecting screw are waterproofly sealed to reduce the risk of water seepage through the upper screw hole. Moreover, the upper end of the sealing sleeve 5 has a trumpet-shaped elastic wedge-tightening portion 51 with elastic deformation ability. The outer peripheral surface and the inner hole peripheral surface of the elastic wedge-tightening portion 51 are both conical surfaces. The outer peripheral conical surface 511 of the elastic wedge-tightening portion 51 is in contact and sealed with the hole wall of the upper screw hole 11, and the inner hole conical surface 512 of the elastic wedge-tightening portion 51 forms a conical hole. The upper end of the sealing sleeve adopts a trumpet-shaped elastic wedge-tightening portion design. The conical hole of the elastic wedge-tightening portion facilitates the sealing sleeve to be inserted into the connecting screw, and at the same time, the elastic wedge-tightening portion has better elastic deformation ability. The outer circumferential surface of the elastic wedge-tightening portion is wedged into the upper screw hole, and a good contact seal is formed after the elastic wedge-tightening portion is elastically deformed, thereby improving the waterproof sealing performance. A sealing gasket 6 is sleeved on the connecting screw 4, and the sealing gasket 6 is sandwiched between the inner opening of the upper screw hole and the inner opening end face of the lower screw hole 21. The sealing gasket further improves the waterproof sealing performance of the connecting screw. A gasket positioning concave hole is provided on the inner opening end face of the lower screw hole, and the sealing gasket is placed in the gasket positioning concave hole.

[0034] The warning light bar is relatively long, and in order to facilitate processing and molding, the light bar is usually designed in a modular manner. Specifically, the light bar body is formed by splicing a plurality of lamp holder units I along the length direction, and the number and size of the lamp holder units can be selected according to needs, such as Fig.13The difference between the warning row lights of the third embodiment of the present invention and the warning row lights of the first embodiment lies in the number of lamp holder units (different bottom mounting brackets). The lamp holder unit I comprises an upper cover unit 1-1 and a bottom cover unit 2-1 which are buckled together to form a cavity. The upper cover units 1-1 of each lamp holder unit I are spliced ​​together to form the upper cover 1, and the bottom cover units 2-1 of each lamp holder unit I are spliced ​​together to form the bottom cover 2. The upper cover unit 1-1 is provided with an upper buckling structure on its circumferential edge, and the bottom cover unit 2-1 is provided with a lower buckling structure on its circumferential edge. The upper cover unit 1-1 and the bottom cover unit 2-1 are buckled together via the upper buckling structure and the lower buckling structure. The upper and lower snap-fit ​​structures are fitted and locked together by connecting screws 4, and a rubber sealing ring 8 is provided between the upper snap-fit ​​structure and the lower snap-fit ​​structure. The upper snap-fit ​​structure includes an annular snap-fit ​​groove 1-11 arranged around the circumferential edge of the upper cover unit 1-1, and the lower snap-fit ​​structure includes an annular protruding tongue 2-11 arranged around the circumferential edge of the bottom cover unit 2-1. The rubber sealing gasket 8 includes a sealing ring body 81 with a U-shaped cross-section. The sealing ring body 81 is placed in the annular snap-fit ​​groove 1-11, and the opening of the sealing ring body 81 faces the protruding tongue 2-11, and the protruding tongue 2-11 is inserted in the opening groove 811 of the sealing ring body 81. The row of lights is assembled from a plurality of lamp holder units for ease of processing, so that the upper cover and the bottom cover are divided into the upper cover unit and the bottom cover unit of each lamp holder unit, the lamp holder unit is buckled together to form an independent inner cavity, and the buckling structure of the upper cover unit and the bottom cover unit adopts a concave-convex fit and has a "U"-shaped sealing ring body, so that each lamp holder unit achieves good waterproof sealing performance.

[0035] Furthermore, the radial sides of the tongue 2-11 have annular step surfaces 2-12 arranged around the tongue 2-11, and the radial two edges 81-1 and 81-2 of the sealing ring body 81 correspond to the step surfaces 2-12 one by one. The edge 81-1 of the sealing ring body 81 located on the radial inner side corresponds to the end of the "U"-shaped opening and is laterally extended with a radial skirt 82. The radial skirt 82 is clamped between the end of the plate body 1-12 of the upper cover unit 1-1 corresponding to the radial inner side of the snap-fit ​​groove 1-11 and the step surface. The plate body 1-13 of the upper cover unit 1-1 corresponding to the radial outer side of the snap-fit ​​groove 1-11 extends downward to form an extended cover plate 1-14, and the bottom cover unit 2-1 is placed in the cavity surrounded by the extended cover plate 1-14. The bottom cover unit is embedded in the bottom of the upper cover unit. The buckled and sealed structure of the upper cover unit and the bottom cover unit is inside the extended cover plate. The overall appearance is beautiful and the sealing is reliable. A radial skirt is provided between the plate body and the step surface on the inner side of the buckled groove to achieve good sealing.

[0036] The bottom of the bottom cover 2 is provided with a wire outlet hole 24, and a waterproof wall 25 surrounding the wire outlet hole 24 is protruded on one side of the bottom cover 2 located inside the lampshade. The waterproof wall is provided on the side of the wire outlet hole located inside the lampshade to realize a design in which one end of the wire outlet hole located inside the lampshade is raised, thereby preventing water from entering the lampshade through the wire outlet hole and improving the waterproof effect.

[0037] In this specific embodiment, the top surface of the upper cover 1 is provided with a profile plate 7 for connecting the upper cover units 1-1 in series, and the top surface of each upper cover unit 1-1 is provided with a profile insertion groove 1-15 arranged along the splicing direction of the lamp holder unit 1. The profile plate 7 is sequentially inserted into the profile insertion groove 1-15 of each upper cover unit 1-1. The upper screw hole 11 is located in the profile insertion groove 1-15. The profile plate 7 is provided with a countersunk hole 71 corresponding to the position of the upper screw hole 11, and the head of the connecting screw 4 is placed in the countersunk hole 71. Each upper cover unit 1-1 is inserted into the profile plate 7 through the profile insertion groove 1-15 to form an upper cover, which is convenient for assembly. The profile plate is provided with a countersunk hole, and the head of the connecting screw is placed in the countersunk hole. The connecting screws are countersunk screws, which cooperate with the countersunk holes of the profile plate to achieve a waterproof effect to a certain extent. Rainwater entering the profile insertion slot can be discharged through the profile insertion slot and the gap between adjacent lamp holder units to avoid rainwater accumulation on the top surface of the warning row of lights; and the upper cover unit and the bottom cover unit of each lamp holder unit are independently waterproof and sealed at the buckle joint, which has the advantage of good waterproof sealing effect.

[0038] The bottom cover unit 2-1 is provided with a splicing bottom plate 9 for splicing the bottom cover units 2-1 in series, the splicing bottom plate 9 is an aluminum profile, the bottom surface of the bottom cover unit 2-1 is provided with a splicing slot, each bottom cover unit 2-1 is spliced ​​on the splicing bottom plate 9 through the splicing slot, and the bottom cover unit 2-1 is fixed to the splicing bottom plate 9 through the bottom cover screws. The bottom cover unit has the advantages of convenient splicing, firmness and reliability.

[0039] In addition, the lamp body 3 includes a lamp body 31 and a lamp body mounting foot 32, the lamp body mounting foot 32 includes a horizontally arranged fixing plate 321, the fixing plate 321 is provided with radially opening mounting bayonet 322 at both sides corresponding to the length direction of the lamp body 31, and a positioning mounting hole 323 is provided between the mounting bayonet 322 on both sides, and the bottom cover 2 is provided with a screw mounting column 26 corresponding to the mounting bayonet 322 and a positioning column 27 corresponding to the positioning mounting hole 323. The nail assembly column 26 is provided with a screw screwing hole, in which a lamp body mounting screw 28 is installed, a fixing plate 321 is supported on the screw assembly column 26, a positioning mounting hole 323 of the fixing plate 321 is positioned and sleeved on the positioning column 27, an assembly bayonet 322 corresponds to the position of the screw screwing hole and the fixing plate 321 is locked and fixed on the screw assembly column 26 through the lamp body mounting screw 28, and after the lamp body mounting screw 27 is loosened, the assembly bayonet 322 can be inserted and withdrawn radially along the lamp body mounting screw 27 through its opening. This design has the advantage of stable lamp body installation and convenient disassembly and assembly of the lamp body.

[0040] like Figure 9-12 As shown; as another embodiment of the present invention, the difference from the above embodiment lies in the matching structure of the upper cover unit 1-1 and the bottom cover unit 2-1: after the upper cover unit and the bottom cover unit are snap-fitted together, screws can be used to lock them to achieve sealing. The sealing ring body 81 is integrally formed with a radial skirt 82 on the surrounding edge 81-2 located on the radial outside, the upper cover unit 1-1 is provided with an upper screw positioning hole 1-16 at the corner, the bottom cover unit 2-1 is provided with a lower screw connecting hole 2-16 corresponding to the upper screw positioning hole 1-16, the upper screw positioning hole 1-16 and the lower screw connecting hole 2-16 are located on the radial outside of the rubber sealing ring 8, and the upper screw positioning hole 1-16 is inserted with a locking screw 1-17 screwed into the lower screw connecting hole 2-16, the radial skirt 28 is clamped between the end of the plate body of the upper cover unit 1-1 corresponding to the radial outside of the buckling groove 1-11 and the step surface, and a drainage gap 2-17 is formed at the position of the lower screw connecting hole 2-16 under the support of the radial skirt 28. Moreover, for the lamp holder unit splicing position, in order to further improve the drainage performance, a drainage groove 2-18 is provided on the annular step surface located radially outside the tongue 2-11, and the drainage groove 2-18 is located between the tongue 2-11 and the lower screw connection hole 2-16. The design of the drainage groove can effectively drain the water at the upper screw hole and the lower screw hole to avoid water accumulation.

Claims

1. A warning light bar, comprising a light bar body, the light bar body comprising a lampshade and a lamp body arranged in the lampshade, the lampshade comprising an upper cover and a bottom cover which are interlocked, the top of the upper cover is provided with an upper screw hole, the bottom cover is provided with a lower screw hole which corresponds to the upper screw hole, a connecting screw which is screwed on the lower screw hole is inserted in the upper screw hole, characterized in that: A flow guide device is provided on the inner wall of the bottom of the bottom cover, and the flow guide device includes an annular water retaining plate arranged around the lower screw hole, and the annular water retaining plate surrounds a flow guide hole cavity on the bottom cover, and the upper screw hole corresponds to the position of the flow guide hole cavity, and a drainage port connecting the flow guide hole cavity with the outside is provided at the bottom of the flow guide hole cavity; a sealing sleeve is sleeved on the connecting screw, and the sealing sleeve is placed at the position of the outer hole section of the upper screw hole, and the upper end of the sealing sleeve has a trumpet-shaped elastic wedge-tightening part with elastic deformation ability, and the outer peripheral surface and the inner hole peripheral surface of the elastic wedge-tightening part are both conical surfaces, and the outer peripheral conical surface of the elastic wedge-tightening part contacts and seals with the hole wall of the upper screw hole, and the conical surface of the inner hole of the elastic wedge-tightening part surrounds a conical hole.

2. The warning bar light according to claim 1, characterized in that: The hole end surface of the lower screw hole corresponding to the inner side of the bottom cover is in abutment with the hole end surface of the upper screw hole corresponding to the inner side of the upper cover.

3. The warning bar light according to claim 1, characterized in that: A sealing gasket is sleeved on the connecting screw, and the sealing gasket is clamped between the inner opening of the upper screw hole and the inner opening end surface of the lower screw hole.

4. The warning bar light according to claim 1, characterized in that: The row of lamps body is formed by splicing a plurality of lamp holder units along the length direction, and the lamp holder unit comprises an upper cover unit and a bottom cover unit which are snapped together to form a cavity, the upper cover units of each lamp holder unit are spliced ​​together to form the upper cover, and the bottom cover units of each lamp holder unit are spliced ​​together to form the bottom cover, an upper snap-fit ​​structure is provided on the circumferential edge of the upper cover unit, and a lower snap-fit ​​structure is provided on the circumferential edge of the bottom cover unit, the upper cover unit and the bottom cover unit are snap-fitted with the upper snap-fit ​​structure and the lower snap-fit ​​structure and are locked and connected by connecting screws, a rubber sealing ring is provided between the upper snap-fit ​​structure and the lower snap-fit ​​structure, the upper snap-fit ​​structure comprises an annular snap-fit ​​groove arranged around the circumferential edge of the upper cover unit, the lower snap-fit ​​structure comprises an annular protruding tongue arranged around the circumferential edge of the bottom cover unit, the rubber sealing gasket comprises a sealing ring body with a U-shaped cross-section, the sealing ring body is placed in the annular snap-fit ​​groove, the opening of the sealing ring body faces the protruding tongue, and the protruding tongue is inserted in the opening groove of the sealing ring body.

5. The warning bar light according to claim 4, characterized in that: The radial sides of the tongue are provided with annular step surfaces arranged around the tongue, and the radial two surrounding edges of the sealing ring body correspond to the step surface positions one by one. The surrounding edge of the sealing ring body located on the radial inner side corresponds to one end of the "U"-shaped opening and has a radial skirt extending laterally. The radial skirt is clamped between the end of the plate body of the upper cover unit corresponding to the radial inner side of the snap-fit ​​groove and the step surface. The plate body of the upper cover unit corresponding to the radial outer side of the snap-fit ​​groove extends downward to form an extended cover plate, and the bottom cover unit is placed in a cavity surrounded by the extended cover plate.

6. The warning bar light according to claim 4, characterized in that: The top surface of the upper cover is provided with a profile plate for splicing the upper cover units in series, and the top surface of each upper cover unit is provided with a profile insertion groove arranged along the splicing direction of the lamp holder unit. The profile plate is inserted into the profile insertion groove of each upper cover unit in sequence, and the upper screw hole is located in the profile insertion groove. The profile plate is provided with a countersunk hole corresponding to the position of the upper screw hole, and the head of the connecting screw is placed in the countersunk hole.

7. The warning bar light according to claim 4, characterized in that: The radial sides of the protruding tongue are provided with annular step surfaces arranged around the protruding tongue, and the radial two surrounding edges of the sealing ring body correspond to the step surface positions one by one, and the sealing ring body is integrally formed with a radial skirt on the surrounding edge located on the radial outside, and an upper screw positioning hole is provided at the corner of the upper cover unit, and the bottom cover unit is provided with a lower screw connecting hole corresponding to the upper screw positioning hole one by one, and the upper screw positioning hole and the lower screw connecting hole are located on the radial outside of the rubber sealing ring, and a locking screw screwed into the lower screw connecting hole is inserted in the upper screw positioning hole, and the radial skirt is clamped between the end of the plate body of the upper cover unit corresponding to the radial outside of the buckling groove and the step surface, and a drainage gap is formed at the position of the lower screw connecting hole between the end of the plate body of the upper cover unit corresponding to the radial outside of the buckling groove and the step surface under the support of the radial skirt.

8. The warning bar light according to claim 1, characterized in that: The bottom of the bottom cover is provided with a wire outlet hole, and one side of the bottom cover located inside the lampshade is protruded with a waterproof wall surrounding the wire outlet hole.

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