Speed limit warning equipment

Abstract

The utility model belongs to the technical field of railway equipment, and discloses speed limit warning equipment which comprises a supporting assembly and a warning board assembly. The support assembly is configured to be placed on a support base. The warning board assembly is detachably connected with the supporting assembly, and the warning board assembly comprises a display assembly, an installation frame and a fixing piece. The installation frame is provided with a ring opening, the display assembly is located in the ring opening and connected with the installation frame through a fixing piece, and an air passing channel is formed between the display assembly and the inner wall of the ring opening. Compared with a traditional circular warning board, the speed limit warning device has the advantages that the windward area of the speed limit warning device can be reduced, the wind resistance of the speed limit warning device is remarkably improved, meanwhile, the warning board assembly and the supporting assembly are detachable, a user can carry the warning board assembly and the supporting assembly through the left hand and the right hand respectively, carrying is convenient, and meanwhile the wind resistance of the warning board assembly and the supporting assembly is improved. Human body stress is more balanced, and the load-bearing fatigue feeling of a user during long-distance walking is conveniently reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway equipment technical field especially for a speed limit warning device. BACKGROUND

[0002] In the railway line construction operation, the thermal expansion and contraction of steel rail affected by high temperature in the daytime will increase the operation precision error of rail and sleeper replacement operation, affect the driving safety and maintenance efficiency, and usually adopt night operation.

[0003] In the night construction process, when the train needs to be released in the railway section under maintenance, the train must slow down to pass through to ensure driving safety, which needs to set the speed limit warning device along the construction section.

[0004] However, the existing speed limit warning device has poor stability and is easy to fall when affected by wind or other external factors, which can not effectively obtain the speed limit information when the train passes through, causing great safety hazards to driving safety and construction personnel.

[0005] Therefore, there is an urgent need for a speed limit warning device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a speed limit warning device to solve the technical problem of poor stability of the speed limit warning device in the prior art, which is easy to fall when affected by wind or other external factors, overcome the technical defects that the train can not effectively obtain the speed limit information when passing through, cause great safety hazards to driving safety and construction personnel, realize the technical effect of reducing the windward area of the speed limit warning device and improving the wind resistance of the speed limit warning device.

[0007] As conceived above, the technical scheme adopted by the utility model is:

[0008] The speed limit warning device comprises:

[0009] The support assembly is configured to be placed on the support foundation;

[0010] The warning board assembly is detachably connected with the support assembly, and the warning board assembly comprises a display assembly, a mounting frame and a fixing member;

[0011] The mounting frame is provided with a ring opening, the display assembly is located in the ring opening, the display assembly is connected with the mounting frame through the fixing member, and a wind passage is formed between the display assembly and the inner wall of the ring opening.

[0012] Optionally, the support assembly comprises a support frame assembly and a first connecting member, the support frame assembly is configured to be placed on the support base away from one end of the first connecting member; the first connecting member is provided with a positioning protrusion;

[0013] The warning sign assembly further comprises a second connecting member, the second connecting member comprises a first plate and a second plate arranged at an angle, the first plate is connected to the display assembly, and the second plate is provided with a positioning hole matched with the positioning protrusion.

[0014] Optionally, the second plate is connected to a third plate in a direction away from the first connecting member, the third plate is provided with a hasp hook, the first connecting member is hinged with a hasp hook handle, and the hasp hook handle can be switched between a locking position and a release position;

[0015] The locking position is a position where the hasp hook handle is hooked on the hasp hook, and the release position is a position where the hasp hook handle is separated from the hasp hook.

[0016] Optionally, the speed limit warning device further comprises a ground nail and an installation hammer, the support assembly is provided with a first clasp ring and a second clasp ring, the ground nail is detachably clamped on the first clasp ring, and the installation hammer is detachably clamped on the second clasp ring.

[0017] The support assembly is provided with a fixing hole, and the ground nail can pass through the fixing hole and be inserted into the support base.

[0018] Optionally, the support assembly comprises:

[0019] A support frame assembly comprises a support rod and a plurality of support legs arranged at the bottom of the support rod, the plurality of support legs are arranged at intervals along the circumference of the support rod, and the support legs are provided with the fixing holes;

[0020] A hoop assembly comprises a hoop ring clamped on the support rod, and the outer wall of the hoop ring is provided with the first clasp ring and the second clasp ring.

[0021] Optionally, the hoop assembly further comprises a clamping piece, a tensioning piece and a fastening piece.

[0022] The hoop ring is provided with an opening, the clamping piece is provided with two clamping pieces, the two clamping pieces are arranged on both sides of the opening, the first end of the clamping piece is connected with the hoop ring, and the second end of the two clamping pieces is convexly formed into a clamping hook portion in a direction away from each other; the tensioning piece is provided with two tensioning pieces corresponding to the two clamping pieces, the tensioning piece is provided with a hooking slot, the tensioning piece is clamped with the corresponding clamping hook portion through the hooking slot, and the two tensioning pieces are connected through the fastening piece, so that the hoop ring is clamped on the support rod.

[0023] Optionally, the speed limit warning device further comprises a battery box, the battery box comprising a battery box shell, a battery box base and a battery; the battery box base detachably fastens with the battery box shell and surrounds to form a mounting cavity, and the battery is detachably mounted in the mounting cavity

[0024] Optionally, the warning board assembly further comprises a first locking member and a second locking member.

[0025] The fixing member comprises a first connecting plate, a second connecting plate and first and second clamping plates arranged at an angle; the first and second clamping plates form a profiled groove clamped with the corner part of the display assembly; the first connecting plate is connected with the first end of the first clamping plate and the first end of the second clamping plate and is connected with the display assembly through the first locking member; and the second connecting plate is connected with the second end of the first clamping plate and the second end of the second clamping plate and is connected with the mounting frame through the second locking member.

[0026] Optionally, the warning board assembly further comprises a reflective sheet, which is arranged on the mounting frame.

[0027] Optionally, the speed limit warning device further comprises a handle, which is connected to the supporting assembly.

[0028] The beneficial effects of the present application are as follows:

[0029] The speed limit warning device provided by the present application has the following advantages: the ring opening is arranged on the mounting frame, the display assembly is located in the ring opening, the display assembly is connected with the mounting frame through the fixing member, and the overwind passage is formed between the display assembly and the inner wall of the ring opening; compared with the traditional circular warning board, the wind area of the speed limit warning device can be reduced, and the wind resistance of the speed limit warning device can be significantly improved; in addition, the warning board assembly and the supporting assembly are detachable, and the user can carry them with the left and right hands respectively, so that the user can carry them conveniently and the body stress is more balanced, and the user's fatigue feeling during long-distance walking can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the contents of the embodiments of the present application and the drawings without any creative labor.

[0031] Figure 1 is a structural schematic view of the speed limit warning device provided by the present application;

[0032] Figure 2Is the structure schematic view of the mounting frame and the reflector provided by the utility model;

[0033] Figure 3 Is the structure schematic view of the support assembly provided by the utility model;

[0034] Figure 4 Is the explosion view of the first connecting piece and the second connecting piece provided by the utility model;

[0035] Figure 5 Is the left view of the speed limiting warning device provided by the utility model;

[0036] Figure 6 Is the explosion view of the hoop assembly provided by the utility model;

[0037] Figure 7 Is the explosion view of the battery box provided by the utility model;

[0038] Figure 8 Is the structure schematic view of the fixing piece provided by the utility model.

[0039] In the figure,

[0040] 1, support assembly; 11, support assembly; 111, support rod; 112, support leg; 1121, fixed hole;

[0041] 12, first connecting piece; 121, positioning protrusion; 122, hasp hook handle;

[0042] 13, hoop assembly; 131, hoop ring; 1311, first snap ring; 1312, second snap ring; 1313, third snap ring; 132, clamping piece; 133, tensioning piece;

[0043] 2, warning board assembly; 21, display assembly;

[0044] 22, mounting frame; 221, ring mouth;

[0045] 23, fixing piece; 231, first connecting plate; 232, second connecting plate; 2321, arc protrusion; 233, first clamping plate; 234, second clamping plate;

[0046] 24, second connecting piece; 241, first plate; 242, second plate; 2421, positioning hole; 243, third plate; 2431, hasp hook;

[0047] 25, reflector;

[0048] 3, wind passage;

[0049] 41, ground nail; 42, mounting hammer;

[0050] 5, battery box; 51, battery box shell; 52, battery box base; 53, battery; 511, battery cover; 512, battery box cover plate; 513, battery box circuit board; 514, switch board; 515, control switch; 516, power display; 517, charging socket; 518, dust plug;

[0051] 6, handle. DETAILED DESCRIPTION

[0052] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model will be further explained below in combination with the drawings and through specific embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all.

[0053] In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0054] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0055] The utility model discloses a kind of speed limit warning equipment, referring to Figure 1 And Figure 2The speed-limit warning device comprises a support assembly 1 and a warning board assembly 2. The support assembly 1 is configured to be placed on a support base. The warning board assembly 2 is detachably connected with the support assembly 1. The warning board assembly 2 comprises a display assembly 21, a mounting frame 22 and a fixing member 23. The mounting frame 22 is provided with a ring opening 221, the display assembly 21 is located in the ring opening 221, the display assembly 21 is connected with the mounting frame 22 through the fixing member 23, and a wind passage 3 is formed between the display assembly 21 and the inner wall of the ring opening 221.

[0056] In some specific embodiments, the support base is the ground, and the mounting frame 22 is arranged in a circular ring shape. In this way, the speed-limit warning device can be consistent with the shape of a traditional circular warning board, so as to facilitate personnel to distinguish the type of the sign. Meanwhile, the circular ring-shaped mounting frame 22 can further reduce the windward area of the speed-limit warning device and reduce the wind resistance.

[0057] It can be understood that, compared with a traditional circular warning board, when the speed-limit warning device is installed and encounters strong wind, part of the strong wind can pass through the speed-limit warning device through the wind passage 3, so as to reduce the windward area of the speed-limit warning device and significantly improve the wind resistance of the speed-limit warning device. Meanwhile, the speed-limit warning device can separate the warning board assembly 2 from the support assembly 1 for transportation. A user can hold the warning board assembly 2 through the wind passage 3 with one hand and hold the support assembly 1 with the other hand, so as to facilitate carrying and balance the force on the human body, thereby facilitating the user to reduce the fatigue feeling caused by heavy load when walking a long distance.

[0058] Further, the support assembly 1 comprises a support assembly 11 and a first connecting member 12 connected with each other. The support assembly 11 is configured to be placed on the support base at an end away from the first connecting member 12. The first connecting member 12 is provided with a positioning protrusion 121. The warning board assembly 2 further comprises a second connecting member 24. The second connecting member 24 comprises a first plate 241 and a second plate 242 arranged at an angle. The first plate 241 is connected with the display assembly 21. The second plate 242 is provided with a positioning hole 2421 which is inserted and matched with the positioning protrusion 121.

[0059] Further, the second plate 242 is bent in a direction away from the first connecting member 12 and connected with a third plate 243. The third plate 243 is provided with a buckle hook 2431. The first connecting member 12 is hingedly connected with a buckle hook handle 122. The buckle hook handle 122 can be switched between a locking position and a release position. The locking position is a position where the buckle hook handle 122 is hooked on the buckle hook 2431. The release position is a position where the buckle hook handle 122 is separated from the buckle hook 2431.

[0060] As Figure 3 and Figure 4 shown, in some specific embodiments, the first connecting piece 12 is provided with two positioning protrusions 121 on the end face of the end away from the support assembly 11, and the second connecting piece 24 includes a vertically arranged first plate 241 and a second plate 242. The second plate 242 is provided with a positioning hole 2421, and the second plate 242 is bent to be connected with two third plates 243 in the direction away from the first connecting piece 12, and the two third plates 243 are provided with a buckle hook 2431. The first connecting piece 12 is hingedly connected with two buckle hook handles 122, and the two buckle hook handles 122 can be switched between a locking position and a release position.

[0061] In use, the positioning protrusions 121 and the positioning hole 2421 are matched to determine the correct installation position, and then the buckle hook handle 122 is switched to the locking position, so that the buckle hook handle 122 on the first connecting piece 12 is hooked on the buckle hook 2431 on the second plate 242, and the first connecting piece 12 and the second plate 242 are fixed.

[0062] In disassembly, the buckle hook handle 122 is switched to the release position, so that the first connecting piece 12 and the second plate 242 can be separated, and the operator can separate and transport the warning sign assembly 2 and the support assembly 1.

[0063] The buckle hook handle 122 and the buckle hook 2431 used in this embodiment are common buckle structures in the prior art, which will not be described here.

[0064] Further, the speed limit warning device further includes a ground plug 41 and a mounting hammer 42. The support assembly 1 is provided with a first clasp 1311 and a second clasp 1312, and the ground plug 41 is detachably clamped on the first clasp 1311, and the mounting hammer 42 is detachably clamped on the second clasp 1312. The support assembly 1 is provided with a fixing hole 1121, and the ground plug 41 can pass through the fixing hole 1121 and be inserted into the support foundation.

[0065] The support assembly 1 includes a support assembly 11 and a clamp assembly 13. The support assembly 11 includes a support rod 111 and a plurality of support legs 112 arranged at the bottom of the support rod 111, and the plurality of support legs 112 are arranged at intervals along the circumference of the support rod 111, and the support leg 112 is provided with a fixing hole 1121. The clamp assembly 13 includes a clamp ring 131 clamped on the support rod 111, and the outer wall of the clamp ring 131 is provided with a first clasp 1311 and a second clasp 1312.

[0066] In specific embodiments, as Figure 5 and Figure 6As shown, the support rod 111 is a telescopic rod, and the bottom of the support rod 111 is provided with three support legs 112 which are arranged at intervals along the circumference of the support rod 111. The telescopic rod can adjust the length of the support rod 111 according to the use environment, so as to adjust the height of the warning sign assembly 2. At the same time, the setting of the telescopic rod also facilitates storage and saves space during transportation. The telescopic rod is a mature technology, and will not be described here. The hoop assembly 13 is arranged on the outer wall of the outermost rod of the telescopic rod, and the hoop ring 131 is provided with three first clamping rings 1311, one second clamping ring 1312 and three third clamping rings 1313. The ground insertion peg 41 can be detachably clamped in the first clamping ring 1311. When the speed limit warning device is used, the ground insertion peg 41 can be used to fix the support leg 112, so as to ensure the firmness of the support assembly 11, and further improve the anti-toppling ability of the speed limit warning device. The installation hammer 42 can be detachably clamped in the second clamping ring 1312. The support leg 112 can be detachably clamped in the third clamping ring 1313. When the speed limit warning device is not used, the three support legs 112 can be clamped in the three third clamping rings 1313 respectively. Such a setting realizes the integrated design of the installation tool of the speed limit warning device and the speed limit warning device, and makes the speed limit warning device tidy and reasonable when not in use, facilitating the next use.

[0067] In some embodiments, only the first clamping ring 1311 and the second clamping ring 1312 can be provided on the hoop ring 131, and the support legs 112 can be folded together and bound together by a rope or the like when not in use.

[0068] Further, referring to Figure 6 , the hoop assembly 13 further comprises a clamping piece 132, a tensioning piece 133 and a fastener. The hoop ring 131 is provided with an opening, and the clamping piece 132 is provided with two clamping pieces 132 which are arranged on both sides of the opening. The first end of the clamping piece 132 is connected with the hoop ring 131, and the second end of the two clamping pieces 132 is protruded in a direction away from each other to form a clamping hook part. The tensioning piece 133 is provided with two tensioning pieces 133 which correspond to the two clamping pieces 132 one by one. The tensioning piece 133 is provided with a clamping groove, and the tensioning piece 133 is clamped with the corresponding clamping hook part through the clamping groove. The two tensioning pieces 133 are connected by the fastener, so as to clamp the hoop ring 131 on the support rod 111. In some embodiments, the fastener is a bolt and a nut. The two tensioning pieces 133 are both provided with through holes, and the bolt is threadedly connected with the nut through the through holes to lock and fix the two tensioning pieces 133. Then, the two clamping pieces 132 connected with the hoop ring 131 are tightly clamped together through the clamping groove on the tensioning piece 133 to clamp the hoop ring 131 on the support rod 111.

[0069] In some other embodiments, the fastener can also be a screw, and the two tensioning pieces 133 are directly connected and locked together by the screw.

[0070] In some other embodiments, the two tensioning members 133 are locked by combining in multiple ways.

[0071] It can be understood that, by setting the tensioning member 133 with the hook slot and the clamping member 132 at the end of the hoop 131 to be clamped with each other, and then locking the two tensioning members 133 by the fastener, the hoop 131 can be more firmly arranged on the support rod 111, thereby ensuring that the ground anchor 41 and the installation hammer 42 and the like arranged on the hoop 131 will not fall and be damaged due to the loose connection of the hoop 131.

[0072] Further, the speed limiting warning device further comprises a battery box 5, the battery box 5 comprising a battery box shell 51, a battery box base 52 and a battery 53; the battery box base 52 and the battery box shell 51 are detachably buckled and surrounded to form a mounting cavity, and the battery 53 is detachably mounted in the mounting cavity.

[0073] In some specific embodiments, as shown in Figure 1 and Figure 5 The battery box 5 is arranged at the end of the support rod 111 away from the warning board assembly 2, and is electrically connected with the warning board assembly 2 through the wire arranged in the support rod 111.

[0074] Further, the first connecting member 12 is a wire box, the battery box 5 is electrically connected with the wire box through the wire in the support rod 111, and a plug-in port is arranged on the wire box, which is used for plugging the lead wire to realize the electrical connection between the wire box and the display assembly 21.

[0075] In some specific embodiments, as shown in Figure 7 The battery box 5 further comprises a battery cover 511, a battery box cover plate 512, a control switch 515 and an electric quantity display 516. The battery cover 511 is located in the mounting cavity surrounded by the battery box base 52 and the battery box shell 51, and covers the battery 53. The battery box cover plate 512 is located in the battery box shell 51, and the control switch 515 and the electric quantity display 516 are mounted outside the battery box shell 51.

[0076] The inner cavity of the battery cover 511 matches the outer shape of the battery 53, which can ensure that the battery 53 will not shake relative to the battery cover 511 when placed in the battery box shell 51 in strong wind, thereby ensuring that the display panel cannot display the speed limiting information due to the shaking of the battery 53.

[0077] The battery box cover plate 512 is provided with a battery box circuit board 513, the battery box circuit board 513 is provided with a switch plate 514 in communication with the control switch 515, the battery box 5 is further provided with a charging socket 517 in communication with the battery box circuit board 513, through the charging socket 517, the battery 53 can be charged without cutting off the power supply when the speed limit display device works for a long time, so as to ensure that the speed limit warning device can always display the speed limit information.

[0078] Of course, in some other embodiments, the battery 53 can be directly replaced when the surrounding environment is confirmed to be safe. The setting of the power display 516 enables the user to clearly and quickly know the remaining power of the battery 53 through the power display 516, and select an appropriate way to ensure the normal work of the speed limit warning device. The setting of the control switch 515 can stop the work of the battery 53 in time when the speed limit warning device is not needed, so as to reduce the waste of power.

[0079] In some embodiments, the charging socket 517 is a USB socket. In order to prevent impurities in the environment from entering the charging socket 517, the charging socket 517 is further connected with a dust plug 518 at the opening.

[0080] Further, the warning board assembly 2 further comprises a first locking member and a second locking member. The fixing member 23 comprises a first connecting plate 231, a second connecting plate 232, and a first clamping plate 233 and a second clamping plate 234 arranged at an angle. The first clamping plate 233 and the second clamping plate 234 form a profiled groove clamped with the corner part of the display assembly 21; the first connecting plate 231 is connected with the first end of the first clamping plate 233 and the first end of the second clamping plate 234, and is connected with the display assembly 21 through the first locking member; the second connecting plate 232 is connected with the second end of the first clamping plate 233 and the second end of the second clamping plate 234, and is connected with the mounting frame 22 through the second locking member.

[0081] In some specific embodiments, as shown in Figure 1 and Figure 8 The display assembly 21 is square, the display assembly 21 is provided with LED lamp beads on the display surface, and the second connecting member 24 is arranged on the side of the display assembly 21 away from the LED lamp beads. The first locking member and the second locking member are screws, when the first connecting plate 231 is connected to the display assembly 21 through the screws, the side wall of the first clamping plate 233 and the side wall of the second clamping plate 234 are in abutment with the two side walls adjacent to the corner part of the display assembly 21. The second connecting plate 232 is connected with the mounting frame 22 through the screws.

[0082] Furthermore, in some specific embodiments, the second connecting plate 232 is provided with an arc-shaped protrusion 2321 that is adapted to the inner wall of the ring 221 of the mounting frame 22. When connecting the second connecting plate 232 and the mounting frame 22, the arc-shaped protrusion 2321 is used to determine when the mounting frame 22 is placed in place, and then the mounting frame 22 is connected to the second connecting plate 232 by screws.

[0083] Furthermore, the warning sign assembly 2 also includes a reflector 25, which is disposed on the mounting frame 22.

[0084] In some specific embodiments, the reflector 25 is attached to the mounting frame 22, which can improve the visual effect of the speed limit warning device, especially when the speed limit warning device is used at night, and can increase the attention of oncoming vehicles.

[0085] For example, the reflector 25 is an annular shape that adapts to the shape and size of the mounting frame 22, ensuring that the warning sign assembly 2 has a good appearance.

[0086] Furthermore, the speed limit warning device also includes a handle 6, which is connected to the support assembly 1.

[0087] In some specific embodiments, such as Figure 5 As shown, the handle 6 is correspondingly set with the tensioning member 133 on the hoop 131, which can prevent the tool stuck on the hoop 131 from interfering with the user's grip on the handle 6.

[0088] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Speed limit warning device, characterized in that The application relates to a speed-limiting warning device. The speed-limiting warning device comprises a support assembly (1) configured to be placed on a support base; a warning board assembly (2) detachably connected with the support assembly (1), wherein the warning board assembly (2) comprises a display assembly (21), a mounting frame (22) and a fixing member (23); the mounting frame (22) is provided with a ring opening (221), the display assembly (21) is located in the ring opening (221), the display assembly (21) is connected with the mounting frame (22) through the fixing member (23), and a wind passing channel (3) is formed between the display assembly (21) and the inner wall of the ring opening (221). The support assembly (1) comprises a support assembly (11) and a first connecting member (12) connected with each other, one end of the support assembly (11) away from the first connecting member (12) is configured to be placed on the support base, and the first connecting member (12) is provided with a positioning protrusion (121). The warning board assembly (2) further comprises a second connecting member (24), the second connecting member (24) comprises a first plate (241) and a second plate (242) arranged at an angle, the first plate (241) is connected to the display assembly (21), and the second plate (242) is provided with a positioning hole (2421) matched with the positioning protrusion (121).

2. The speed limit warning device of claim 1, wherein The second plate (242) is connected with a third plate (243) which is bent away from the first connecting member (12), the third plate (243) is provided with a buckle hook (2431), the first connecting member (12) is hinged with a buckle hook handle (122), and the buckle hook handle (122) can be switched between a locking position and a release position. The locking position is a position where the buckle hook handle (122) is hooked on the buckle hook (2431), and the release position is a position where the buckle hook handle (122) is separated from the buckle hook (2431).

3. The speed limit warning device of claim 2, wherein The speed-limiting warning device further comprises a ground insertion nail (41) and an installation hammer (42), the support assembly (1) is provided with a first clasp ring (1311) and a second clasp ring (1312), the ground insertion nail (41) is detachably clamped on the first clasp ring (1311), and the installation hammer (42) is detachably clamped on the second clasp ring (1312). The support assembly (1) is provided with a fixing hole (1121), the ground insertion nail (41) can pass through the fixing hole (1121) and be inserted into the support base.

4. The speed limit warning device of claim 1, wherein The support assembly (1) comprises: a support assembly (11) comprising a support rod (111) and a plurality of support legs (112) arranged at the bottom of the support rod (111), the plurality of support legs (112) are arranged at intervals along the circumference of the support rod (111), and the support legs (112) are provided with the fixing hole (1121); 5. The speed limit warning device of claim 4, wherein a hoop assembly (13) comprising a hoop ring (131) clamped on the support rod (111), and the outer wall of the hoop ring (131) is provided with the first clasp ring (1311) and the second clasp ring (1312). ​ ​ 6. The speed limit warning device of claim 5, wherein The hoop assembly (13) further comprises a clamping piece (132), a tensioning piece (133) and a fastening piece; The hoop ring (131) is provided with an opening, and the clamping pieces (132) are provided in two and arranged on two sides of the opening, the first ends of the clamping pieces (132) are connected with the hoop ring (131), the second ends of the clamping pieces (132) are protruded in a direction away from each other to form a clamping hook part, the tensioning pieces (133) are provided in two and correspond to the clamping pieces (132) one by one, the tensioning pieces (133) are provided with a clamping groove, the tensioning pieces (133) are clamped with the corresponding clamping hook part through the clamping groove, and the two tensioning pieces (133) are connected through the fastening piece to make the hoop ring (131) hoop tightly on the support rod (111).

7. Speed limit warning device according to any of claims 1-6, characterized in that The speed limit warning device further comprises a battery box (5), the battery box (5) comprises a battery box shell (51), a battery box base (52) and a battery (53), the battery box base (52) is detachably buckled with the battery box shell (51) and is surrounded to form a mounting cavity, and the battery (53) is detachably mounted in the mounting cavity.

8. Speed limit warning device according to any of claims 1-6, characterized in that The warning board assembly (2) further comprises a first locking piece and a second locking piece; The fixing piece (23) comprises a first connecting plate (231), a second connecting plate (232) and first and second clamping plates (233) and (234) which are arranged at an angle, the first and second clamping plates (233) and (234) form a profiled groove which is clamped with a corner part of the display assembly (21), the first connecting plate (231) is connected with the first ends of the first and second clamping plates (233) and (234), and is connected with the display assembly (21) through the first locking piece, and the second connecting plate (232) is connected with the second ends of the first and second clamping plates (233) and (234), and is connected with the mounting frame (22) through the second locking piece.

9. Speed limit warning device according to any of claims 1-6, characterized in that The warning board assembly (2) further comprises a reflective sheet (25), and the reflective sheet (25) is arranged on the mounting frame (22).

10. The speed limit warning device according to any one of claims 1 to 6, wherein The speed limit warning device further comprises a handle (6), and the handle (6) is connected with the support assembly (1).

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