Installation iron member of warning board and construction warning board

Abstract

The utility model discloses an installation iron member and construction warning board of warning board relates to the field of warning board, the support is equipped with the opening structure of can install the warning board, and the opening structure extends along the thickness direction of support and is through, two clamping rods are along the second direction interval setting, the support includes the first frame and the second frame that are arranged in proper order along the first direction, and the upper end of first frame is hinged the upper end of second frame, and the lower end of first frame is hinged the one end of the chassis along the first direction in U shape, and the second frame can be attached with first frame and form the accommodation groove that can clamp and fix the warning board, and the chassis is equipped with the containing groove that the opening faces upward, and the clamping rod can be accommodated in the containing groove, and one end of clamping rod is hinged the chassis, and the other end can be clamped and fixed with second frame to make the support, the chassis and clamping rod limit the triangle structure, and the hinging axis of first frame and clamping rod all extends along the second direction. The utility model can replace the warning board fast, and can fold and store, thereby reducing the space and cost that occupies.

Description

Technical Field

[0001] This utility model relates to the field of warning sign technology, and in particular to an installation iron component for a warning sign and a construction warning sign. Background Technology

[0002] Construction warning signs are important safety signage facilities at construction sites. They are mainly used to remind pedestrians, vehicles, or other relevant personnel of potential dangers, thereby ensuring construction safety and public safety.

[0003] In existing technologies, construction warning signs are designed as a single, integrated structure, such as... Figure 1 As shown, the construction warning sign includes a main body 110, a fixed bracket 120, a supporting base 130, and supporting rods 140. The main body 110 is located at the square opening of the fixed bracket 120 and is welded or screwed to the fixed bracket 120. The lower end of the fixed bracket 120 is welded to one end of the supporting base 130. The fixed bracket 120 is inclined and rearward relative to the supporting base 130. Two inclined supporting rods 140 are provided on the rear side of the fixed bracket 120. The two ends of the supporting rods 140 are welded to the fixed bracket 120 and the supporting base 130, respectively, so that the supporting rods 140, the supporting base 130, and the fixed bracket 120 can together form a stable triangular support structure.

[0004] However, the construction warning signs with the above-mentioned structure have the following problems: they occupy a lot of space during storage, packaging and transportation, which is not conducive to handling and leads to high storage, packaging and transportation costs; different usage scenarios require the use of construction warning signs with different warning messages. Since the main body of the warning sign is relatively fixed and the support is fixed, it is not convenient to replace the main body of the warning sign. Therefore, it is necessary to purchase construction warning signs with different warning messages, which will lead to increased purchase costs, storage space and costs.

[0005] Therefore, the structure of existing construction warning signs needs further optimization. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an installation iron component for warning signs and a construction warning sign, which facilitates quick replacement of warning signs and allows for folding and storage, thereby reducing space occupation and lowering costs.

[0007] The first aspect of this utility model provides a mounting iron component for a warning sign, comprising:

[0008] A bracket having an opening structure for installing a warning sign, the opening structure extending through the bracket along its thickness direction;

[0009] The base frame is U-shaped.

[0010] Two locking rods are provided and spaced apart along the second direction;

[0011] The bracket includes a first frame and a second frame arranged sequentially along a first direction. The upper end of the first frame is hinged to the upper end of the second frame, and the lower end of the first frame is hinged to one end of the base frame along the first direction. The second frame is configured to fit against the first frame and together form a receiving groove for snapping and fixing a warning sign. The base frame has an upward-opening receiving groove. The snap-fit ​​rod is configured to be housed in the receiving groove. One end of the snap-fit ​​rod is hinged to the base frame, and the other end of the snap-fit ​​rod is configured to snap and fix to the second frame, so that the bracket, the base frame, and the snap-fit ​​rod together define a triangular structure. The hinge axis of the first frame and the hinge axis of the snap-fit ​​rod both extend along a second direction, and the first direction, the second direction, and the up-down direction are perpendicular to each other.

[0012] The mounting iron component for the warning sign according to the first aspect of the present invention has at least the following beneficial effects: Since the first frame and the second frame are hinged to each other and have a receiving groove, when it is necessary to disassemble and replace different warning signs, driving the second frame to rotate relative to the first frame can free up enough space to quickly place the warning sign between the first frame and the second frame. Thus, the mounting iron component for the warning sign can be used in combination with warning signs with different warning messages, which can save purchase costs and reduce storage space.

[0013] Because the first frame and the base frame are hinged together, and the latching rod and the base frame are also hinged together, and the base frame has a receiving groove, when needed, the latching rod and the first frame are rotated relative to the base frame at a certain angle, so that the first frame and the second frame fit together and securely clamp the warning sign. This allows the latching rod to engage with the second frame, providing support when the first and second frames are tilted. At this time, the latching rod, the base frame, and the support form a stable triangular structure, allowing the support to be in a stable tilted state. When storage or packaging for transportation is required, the latching rod and the first frame are rotated away from the base frame at a certain angle, releasing the latching action between the latching rod and the second frame. The latching rod is then rotated into the receiving groove to fold and store it. The support is then rotated closer to the base frame to reduce the space occupied by the mounting iron components of the warning sign in the vertical direction, which helps to reduce storage and packaging transportation costs.

[0014] In some embodiments of this utility model, the second frame is provided with a bayonet structure on the side away from the first frame along its thickness direction, and the snap-fit ​​rod is provided with a snap-fit ​​part, which is configured to snap into or out of the bayonet structure.

[0015] In some embodiments of this utility model, the snap-fit ​​portion is stepped, and the snap-fit ​​portion is also configured to snap into the bayonet structure and fit against the side of the second frame away from the first frame along its thickness direction.

[0016] In some embodiments of the present invention, the receiving groove extends along a first direction, the snap-fit ​​rod is configured to rotate in a direction away from the bracket and be housed in the receiving groove, and the first frame is configured to rotate in a direction close to the snap-fit ​​rod and be partially inserted into the receiving groove.

[0017] In some embodiments of this utility model, the base frame is provided with a first counterweight at one end away from the support along a first direction, and the lower end of the first frame is provided with a second counterweight.

[0018] In some embodiments of this utility model, the receiving groove is square-ring-shaped when viewed along the thickness direction of the bracket.

[0019] In some embodiments of this utility model, the first frame is provided with a first groove, the second frame is provided with a second groove, and the first frame is configured to fit against the second frame so that the first groove and the second groove together form the receiving groove.

[0020] In some embodiments of this utility model, the lower end of the first frame is provided with a connecting shaft extending in a second direction, and both ends of the connecting shaft are rotatably connected to the base frame so that the first frame is hinged to the base frame.

[0021] In some embodiments of this utility model, the first frame and the second frame are magnetically connected.

[0022] A second aspect of this utility model provides a construction warning sign, which includes:

[0023] The mounting iron components of the warning sign as described in any of the embodiments of the first aspect;

[0024] Warning signs are placed in the opening structure.

[0025] The construction warning sign according to the second aspect of the present invention has at least the following beneficial effects: by adopting the installation iron component of the warning sign with the above-described structure, the construction warning sign can be quickly disassembled and replaced according to the usage scenario, which can reduce the purchase cost. Moreover, it can be folded and stored, which is convenient for storage, packaging and transportation.

[0026] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a construction warning sign in existing technology;

[0028] Figure 2 This is a cross-sectional schematic diagram of the iron mounting component of the warning sign provided according to an embodiment of the present utility model in its working state;

[0029] Figure 3 This is a cross-sectional view of the iron mounting component of the warning sign provided according to an embodiment of the present utility model in a non-working state.

[0030] Reference numerals: 110, main body of warning sign; 120, fixed bracket; 130, supporting base; 140, support rod; 150, connecting rod; 210, first frame; 211, first groove; 220, second frame; 221, bayonet structure; 222, second groove; 230, receiving groove; 240, connecting shaft; 250, base; 251, receiving groove; 260, snap-fit ​​rod; 261, snap-fit ​​part; 270, rotating shaft. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, unless otherwise stated, "several" means one or more, and "multiple" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In existing technologies, construction warning signs typically employ an integrated structural design, such as... Figure 1 As shown, the structure of the construction warning sign mainly includes a warning sign body 110, a fixed bracket 120, a support base 130, and a support rod 140. The square warning sign body 110 is located at the square opening of the fixed bracket 120 and is welded or screwed to the fixed bracket 120, so that the warning sign body 110 is fixed relative to the fixed bracket 120. The lower end of the fixed bracket 120 is welded to the front end of the support base 130, and the fixed bracket 120 is inclined and rearward relative to the support base 130. Two inclined support rods 140 are provided on the rear side of the fixed bracket 120. The two support rods 140 are spaced apart in the left and right direction. The upper and lower ends of the support rods 140 are welded to the fixed bracket 120 and the support base 130, respectively, so that the support rods 140 are fixed relative to the fixed bracket 120 and the support base 130, and the support rods 140, the support base 130 and the fixed bracket 120 can form a stable triangular support structure together, so that the fixed bracket 120 and the warning sign body 110 can maintain a stable backward tilt.

[0035] In addition, to enhance the structural stability of the construction warning sign, a connecting rod 150 extending in the left and right direction is provided at the front end of the U-shaped support base 130, and the two ends of the connecting rod 150 are welded to the support base 130.

[0036] However, the construction warning signs described above typically have the following problems: they occupy a large amount of space during storage, packaging, and transportation, making them difficult to handle and resulting in high storage, packaging, and transportation costs. Different usage scenarios require construction warning signs with different warning messages (such as "Construction Ahead," "Road Closed," and "Working at Heights"). Since the main body of the warning sign is fixed relative to the support frame, it is not convenient for workers to quickly disassemble and replace the main body of the warning sign on the support frame. Therefore, it is often necessary to purchase construction warning signs with different warning messages, which increases purchase costs, storage space, and overall expenses.

[0037] Based on the above-mentioned technical problems, this utility model provides an installation iron component for warning signs and a construction warning sign, which facilitates the convenient disassembly and replacement of warning signs by workers, and can be folded for storage, thereby reducing the space occupied and lowering the costs of storage, packaging, transportation and purchase.

[0038] The following is for reference. Figures 1 to 3 This invention describes the installation iron components and construction warning signs provided according to embodiments of the present invention.

[0039] like Figures 1 to 3As shown, the mounting iron component for the warning sign according to the first aspect of this utility model can be used with the warning sign to assemble a construction warning sign. The mounting iron component for the warning sign can be made of metal such as stainless steel.

[0040] The iron components for installing warning signs provided in this embodiment have the advantages of reasonable structural design, small space occupation, and low cost. They facilitate quick replacement of warning signs by staff and can be folded for easy storage, packaging, and transportation.

[0041] The mounting iron components of the warning sign have a first direction, a second direction, and a vertical direction, wherein the first direction, the second direction, and the vertical direction are arranged perpendicularly to each other. In this embodiment, it is assumed that the first direction is the front-back direction and the second direction is the left-right direction.

[0042] The structure of the iron components for installing the warning sign includes a bracket, a base frame 250, and a locking rod 260.

[0043] The bracket extends in width along the second direction, and when vertical, its length extends vertically. Its thickness extends along the first direction. The bracket has an opening for mounting warning signs, extending through the bracket's thickness. The opening's shape matches the shape of the warning sign, which is typically rectangular; therefore, the opening is rectangular. This opening facilitates clear display of the warning message on the sign. The bracket can be constructed from multiple square rods connected vertically. The specific shape of the bracket can be referenced... Figure 1 The design is based on the situation shown.

[0044] The base frame 250 is U-shaped when viewed vertically. The base frame 250 can be formed by three square rods connected vertically. Specifically, the base frame 250 includes one horizontal rod and two vertical rods. The horizontal rod extends along a second direction, and the vertical rods extend along a first direction. The horizontal rod is located on one side of the two vertical rods along the first direction and is fixedly connected to one end of the two vertical rods. The specific shape of the base frame 250 can be seen in [reference needed]. Figure 1 The design is based on the situation shown.

[0045] Two locking rods 260 are provided, and the two locking rods 260 are arranged at a certain interval along the second direction. In this embodiment, the two locking rods 260 are respectively arranged in a one-to-one correspondence with the two longitudinal bars of the base frame 250. The locking rods 260 are located above the longitudinal bars. The cross-sectional shape of the locking rods 260 can be square. The specific length of the locking rods 260 can be determined according to the actual design conditions, such as the installation position of the locking rods 260 and the tilt angle of the bracket, etc., and is not specifically limited here.

[0046] The support structure includes a first frame 210 and a second frame 220, which are arranged sequentially along a first direction. The upper ends of the first frame 210 and the second frame 220 are hinged together by a hinge shaft, allowing the second frame 220 to rotate relative to the first frame 210 in either the forward or reverse direction. The angle at which the second frame 220 can rotate relative to the first frame 210 can be greater than or equal to 180° or less than 180°, which can be set according to actual design requirements.

[0047] The second frame 220 is configured to fit snugly against the first frame 210, and together with the first frame 210, forms a receiving groove 230. The receiving groove 230 is used to snap and fix the warning sign, thus securing the warning sign relative to the bracket. The receiving groove 230 is square-ring-shaped when viewed along the thickness direction of the bracket; therefore, the four edges of the warning sign can be placed within the receiving groove 230, allowing for a snap-fit ​​fixation between the warning sign and the bracket.

[0048] In this embodiment, the first frame 210 is provided with a first groove 211, and the second frame 220 is provided with a second groove 222. Specifically, the first frame 210 has a recessed first groove 211 along its thickness direction near the side of the second frame 220. The first groove 211 is square-ring-shaped and communicates with the opening structure. The second frame 220 has a recessed second groove 222 along its thickness direction near the side of the first frame 210. The second groove 222 is also square-ring-shaped and communicates with the opening structure. The first frame 210 is configured to fit snugly against the second frame 220, so that the first groove 211 and the second groove 222 together form a receiving groove 230. In addition, the second frame 220 is fitted into the first frame 210, such as... Figure 2 As shown.

[0049] Understandably, after the first frame 210 and the second frame 220 rotate relative to each other and create sufficient space, the staff can place the warning sign in the first groove 211 or the second groove 222. Then, the first frame 210 and the second frame 220 are driven to rotate relative to each other, causing them to fit together. This makes the first groove 211 and the second groove 222 opposite to each other and connected, so that the warning sign is simultaneously located in the first groove 211 and the second groove 222. At this time, the first frame 210 and the second frame 220 can provide a locking and limiting effect on the four edges of the warning sign, allowing the warning sign to be fixed relative to the support. Of course, it is not excluded that in other embodiments, only the second groove 222 is provided in the second frame 220 or only the first groove 211 is provided in the first frame 210.

[0050] The lower end of the first frame 210 and one end of the base frame 250 along the first direction are hinged together by a hinge shaft, enabling the first frame 210 to rotate relative to the base frame 250 in either the forward or reverse direction. The rotation angle of the first frame 210 relative to the base frame 250 can be set according to actual design requirements and is not specifically limited here. The hinge axis of the first frame 210 extends along the second direction, that is, the hinge shafts located at both the upper and lower ends of the first frame 210 extend along the second direction.

[0051] The base frame 250 is provided with a receiving groove 251, the opening of which is open upwards, and the receiving groove 251 extends along a first direction. The receiving groove 251 is located on a longitudinal rod of the base frame 250. The locking rod 260 is configured to be housed in the receiving groove 251. The length and width of the receiving groove 251 are mainly set according to the size of the locking rod 260, as long as it allows the locking rod 260 to rotate and be housed in the receiving groove 251.

[0052] One end of the latching rod 260 is hinged to the base frame 250 via a hinge axis, and the other end of the latching rod 260 is configured to latch and fix to the second frame 220, so that the bracket, base frame 250 and latching rod 260 together define a stable triangular structure. The hinge axis of the latching rod 260 extends along a second direction.

[0053] In this embodiment, each latching rod 260 has a pivot 270 extending in a second direction at one end. The pivot 270 is rotatably connected to the longitudinal rod of the base frame 250, allowing the pivot 270 to drive the latching rod 260 to rotate relative to the base frame 250. The latching rod 260 is configured to rotate away from the support and be housed in the receiving groove 251. Furthermore, the first frame 210 is configured to rotate towards the latching rod 260 and be partially inserted into the receiving groove 251.

[0054] It is understandable that when the metal components used to mount the warning sign are not in operation, such as... Figure 3 As shown, the locking rod 260 can be driven to rotate after releasing the locking and fixing effect on the second frame 220, until the locking rod 260 can be folded and stored in the base frame 250; then the first frame 210 and the second frame 220 can be driven to rotate after they are in contact with each other, until the first frame 210 and the second frame 220 cannot rotate due to the limiting effect of the locking rod 260 or the base frame 250. At this time, the vertical distance between the bracket and the base frame 250 is reduced, and part of the first frame 210 is placed in the receiving groove 251. This makes it convenient for workers to move the iron components of the warning sign and to pack and transport them.

[0055] In this embodiment, the second frame 220 has a latch structure 221 on the side away from the first frame 210 along its thickness direction, and the latching rod 260 has a latching portion 261, which is configured to engage or disengage from the latch structure 221. The size of the latch structure 221 is slightly larger than the size of the latching portion 261 so that the latching portion 261 can engage or disengage from the latch structure 221 during the rotation of the bracket relative to the latching rod 260. Specifically, the latching portion 261 is stepped, and is also configured to engage with the latch structure 221 and fit against the side of the second frame 220 away from the first frame 210 along its thickness direction, such as... Figure 2 As shown.

[0056] In other embodiments, the bayonet structure 221 may be T-shaped or L-shaped when viewed along the second direction, and correspondingly, the latching part 261 may be T-shaped or L-shaped. When the latching part 261 extends into the bayonet structure 221, the latching part 261 can engage with the second frame 220.

[0057] Understandably, since the support is tilted during operation, the locking rod 260 needs to provide support to ensure stability. Therefore, by inserting the locking part 261 into the bayonet structure 221, the locking rod 260 engages with the second frame 220. Simultaneously, the locking rod 260 provides support to both the second frame 220 and the first frame 210. Of course, in other embodiments, it is possible that the second frame 220 may have the locking part 261, and the locking rod 260 may have the bayonet structure 221.

[0058] In some embodiments, such as Figure 2 and Figure 3 As shown, the base frame 250 has a first counterweight at the end away from the support along the first direction, and the lower end of the first frame 210 has a second counterweight. Specifically, the portion of the base frame 250 away from the support along the first direction is a solid structure, increasing the weight of the base frame 250 at this position and improving its stability. This allows the base frame 250 to be placed stably on the ground, preventing the metal components of the warning sign from easily tipping over due to non-human forces such as wind. The lower end of the first frame 210 is also a solid structure, increasing the weight of the first frame 210 at this position, lowering the center of gravity of the first frame 210, improving its stability, and preventing it from easily tipping over due to factors such as wind or collisions.

[0059] In some embodiments, such as Figure 2 and Figure 3As shown, the lower end of the first frame 210 is provided with a connecting shaft 240. The length of the connecting shaft 240 extends along a second direction, and both ends of the connecting shaft 240 along the second direction are rotatably connected to the base frame 250. Specifically, the end of the connecting shaft 240 is rotatably connected to the longitudinal bar of the base frame 250, thereby making the first frame 210 hinged to the base frame 250. This design can increase the weight of the first frame 210 at the lower position, which is beneficial to improving stability. Moreover, the connecting shaft 240 can exert a limiting effect on the base frame 250 in the second direction, preventing the two longitudinal bars of the base frame 250 from easily coming together and causing bending deformation.

[0060] In some embodiments, such as Figure 2 As shown, the first frame 210 and the second frame 220 are magnetically connected. Specifically, magnets or magnetic stickers are provided at corresponding positions on the first frame 210 and the second frame 220. Through a certain magnetic attraction, the first frame 210 and the second frame 220 can fit together better. Moreover, after the first frame 210 and the second frame 220 are fitted together, an external force is required to drive the second frame 220 to separate from the first frame 210 and rotate relative to it. This makes it convenient for the operator to drive the bracket to rotate. At this time, the first frame 210 and the second frame 220 still maintain a magnetically connected state.

[0061] In the mounting iron component of the warning sign provided in this embodiment of the utility model, since the first frame 210 and the second frame 220 are hinged to each other and a receiving groove 230 is defined, when it is necessary to disassemble and replace different warning signs, driving the second frame 220 to rotate relative to the first frame 210 can free up enough space to quickly place the warning sign between the first frame 210 and the second frame 220. Thus, the mounting iron component of the warning sign can be used with any warning sign with different warning words, which can save purchase costs and reduce storage space.

[0062] Furthermore, since the first frame 210 is hinged to the base frame 250, and the locking rod 260 is hinged to the base frame 250, and the base frame 250 is provided with a receiving groove 251, when needed, the locking rod 260 and the first frame 210 are driven to rotate relative to the base frame 250 at a certain angle, so that the first frame 210 and the second frame 220 fit together and firmly clamp the warning sign, and the locking rod 260 can engage and fix with the second frame 220, allowing the locking rod 260 to provide support when the first frame 210 and the second frame 220 are tilted. At this time, the locking rod 260... 0. The base frame 250 and the support can form a stable triangular structure, allowing the support to be in a stable tilted state. When storage or packaging transportation is required, the locking rod 260 and the first frame 210 are driven to rotate a certain angle away from the base frame 250, releasing the locking and fixing effect between the locking rod 260 and the second frame 220. Then, the locking rod 260 is rotated into the receiving slot 251 to realize the folding and storage of the locking rod 260. The support is also rotated to be close to the base frame 250 to reduce the space occupied by the iron components of the warning sign in the vertical direction, which helps to reduce the cost of storage and packaging transportation.

[0063] like Figures 1 to 3 As shown, the construction warning sign according to the second aspect of the present invention includes a warning sign and an mounting iron component as in the first aspect of the present invention, wherein the warning sign is disposed in the opening structure of the bracket.

[0064] It is understood that the construction warning sign in this embodiment, by adopting the installation iron component of the warning sign with the above-described structure, can be quickly disassembled and replaced according to different usage scenarios, thus effectively reducing purchase costs. In addition, it can also be folded and stored, making it convenient for storage, packaging and transportation.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mounting iron component for a warning sign, characterized in that, include: A bracket having an opening structure for installing a warning sign, the opening structure extending through the bracket along its thickness direction; The base frame is U-shaped. Two locking rods are provided and spaced apart along the second direction; The bracket includes a first frame and a second frame arranged sequentially along a first direction. The upper end of the first frame is hinged to the upper end of the second frame, and the lower end of the first frame is hinged to one end of the base frame along the first direction. The second frame is configured to fit against the first frame and together form a receiving groove for snapping and fixing a warning sign. The base frame has an upward-opening receiving groove. The snap-fit ​​rod is configured to be housed in the receiving groove. One end of the snap-fit ​​rod is hinged to the base frame, and the other end of the snap-fit ​​rod is configured to snap and fix to the second frame, so that the bracket, the base frame, and the snap-fit ​​rod together define a triangular structure. The hinge axis of the first frame and the hinge axis of the snap-fit ​​rod both extend along a second direction, and the first direction, the second direction, and the up-down direction are perpendicular to each other.

2. The mounting iron component for the warning sign according to claim 1, characterized in that, The second frame has a bayonet structure on the side away from the first frame along its thickness direction, and the snap-fit ​​rod has a snap-fit ​​part, which is configured to snap into or out of the bayonet structure.

3. The mounting iron component for the warning sign according to claim 2, characterized in that, The snap-fit ​​portion is stepped and is configured to snap into the bayonet structure and fit against the side of the second frame away from the first frame along its thickness direction.

4. The mounting iron component for the warning sign according to claim 1, characterized in that, The receiving groove extends along a first direction, the snap-fit ​​rod is configured to rotate away from the bracket and be housed in the receiving groove, and the first frame is configured to rotate towards the snap-fit ​​rod and be partially inserted into the receiving groove.

5. The mounting iron component for the warning sign according to claim 1, characterized in that, The base frame is provided with a first counterweight at one end away from the support along the first direction, and a second counterweight is provided at the lower end of the first frame.

6. The mounting iron component for the warning sign according to claim 1, characterized in that, The receiving groove is square-ring-shaped when viewed along the thickness direction of the bracket.

7. The mounting iron component for the warning sign according to claim 6, characterized in that, The first frame has a first groove, and the second frame has a second groove. The first frame is configured to fit against the second frame so that the first groove and the second groove together form the receiving groove.

8. The mounting iron component for the warning sign according to claim 1, characterized in that, The lower end of the first frame is provided with a connecting shaft extending in a second direction, and both ends of the connecting shaft are rotatably connected to the base frame so that the first frame is hinged to the base frame.

9. The mounting iron component for the warning sign according to claim 1, characterized in that, The first frame and the second frame are magnetically connected.

10. A construction warning sign, characterized in that, include: The mounting iron component of the warning sign as described in any one of claims 1 to 9; Warning signs are placed in the opening structure.

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