Rectangular signboard
The innovative design of the frame-shaped slot base and the detachable sign body solves the problems of unstable fixing and complicated disassembly of traditional rectangular signs, achieving stable installation and convenient disassembly of signs, and improving safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional rectangular signs are not securely installed on vehicles, are easily damaged or detached, and the disassembly and installation process is complicated, affecting safety and efficiency.
The design features a frame-shaped slot base and a detachable sign body. It utilizes an L-shaped right-angled outer frame, limit bars, threaded holes, and screws, combined with structural reinforcement rods, sliding grooves, and push plates, to achieve secure fixing and convenient disassembly of the sign.
Ensure that signs are securely fixed to vehicles to prevent them from falling off, improve the ease of disassembly and installation, reduce potential injury risks, and enhance safety and work efficiency.
Smart Images

Figure CN224123070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sign technology, and in particular to a rectangular sign. Background Technology
[0002] With the development of the road transport industry, especially the increase in the transport of dangerous goods, ensuring the safety of these special goods during transportation has become particularly important. To improve road transport safety and effectively warn other road users of potential dangers, vehicles transporting dangerous goods are typically required to be equipped with rectangular signs. These signs display the hazard identification number (HIN) and the UN number for the dangerous goods. These rectangular signs not only provide necessary safety information to personnel but also serve as an important warning to surrounding vehicles and the general public.
[0003] However, traditional sign installation methods often have some shortcomings. For example, directly fixing the sign to the vehicle body using adhesive, bolts, or rivets may lead to damage or detachment due to vibration or other external factors during long-term use, thus affecting its functionality and safety. Furthermore, when sign replacement or vehicle maintenance is needed, the process of disassembling and reinstalling the sign can be time-consuming and complex, especially in emergency situations, potentially causing delays and safety hazards.
[0004] Therefore, in response to the aforementioned technical problems, it is necessary to design a rectangular sign structure that can ensure the sign body is firmly fixed to the vehicle body to ensure driving safety, while also enabling convenient disassembly and installation. Utility Model Content
[0005] This utility model proposes a rectangular sign, the body of which can be firmly fixed to the vehicle body and is easy to disassemble and assemble, solving the above-mentioned problems existing in the use of the prior art.
[0006] The technical solution of this utility model is implemented as follows: A rectangular signboard includes a frame-shaped slot base welded and fixed to a vehicle body and a signboard body detachably mounted on the frame-shaped slot base. The frame-shaped slot base includes two L-shaped right-angled outer frames arranged vertically opposite each other. Each of the two right-angled outer frames has a slot on its inner side for inserting the edge of the signboard body. There is an insertion port between the left sides of the two right-angled outer frames and an ejection port between the right sides of the two right-angled outer frames. The left end of the lower right-angled outer frame is hinged to a limit stop bar. The end of the limit stop bar away from the lower right-angled outer frame is detachably connected to the left end of the upper right-angled outer frame.
[0007] Preferably, a threaded hole is provided on the left end of the upper right-angled outer frame of the two right-angled outer frames, and a through hole corresponding to the threaded hole is provided on the limiting strip, and a screw for threaded engagement with the threaded hole is provided on the through hole.
[0008] Preferably, a left card seat is integrally formed on the side of the limiting strip facing the insertion port, and the left card seat has a slot for inserting the left edge of the sign body, and the left card seat has a chamfer at the opening of the slot.
[0009] Preferably, a plurality of structural reinforcing rods are fixedly connected between the two right-angled outer frames, arranged at equal intervals from left to right, and the structural reinforcing rods are vertically arranged.
[0010] Preferably, each of the structural reinforcing rods has a chamfer on the end facing the opening.
[0011] Preferably, the middle of the structural reinforcing rod closest to the ejection port is provided with a sliding groove that runs through it from left to right. A sliding plate is slidably disposed on the sliding groove, and the right end of the sliding plate extends to the ejection port and is integrally formed with a push plate.
[0012] Preferably, the left end of the sliding plate is integrally formed with an anti-dislodgement support block.
[0013] In summary, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model achieves both secure fixing and convenient disassembly of the sign by welding a frame-shaped slot base to the vehicle body and detachably mounting the sign body on the frame-shaped slot base. The design of the L-shaped right-angled outer frame and its internal slot ensures that the sign body can be firmly inserted and fixed to the vehicle body, while the limiting strip provides additional safety protection to prevent the sign from accidentally falling off.
[0015] 2. The limit stop bar is connected by a combination of threaded holes and screws, which not only improves the stability of the limit mechanism, but also makes it easy to disassemble and assemble the limit stop bar, facilitating maintenance and replacement of the sign.
[0016] 3. The addition of structural reinforcing rods enhances the overall strength of the frame-shaped slot base. Furthermore, the chamfered design of the reinforcing rods prevents the sign body from getting stuck when inserted.
[0017] 4. The push port facilitates pushing the sign body to the left, making it easy to remove. The design of the sliding groove, sliding plate, and push plate provides users with a simple and safe way to push the sign body, avoiding the risk of injury that may be caused by direct contact, which is especially important when the edges of the sign are sharp. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the sign body being removed in this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the limiting stop bar in this utility model;
[0022] Figure 4 This is an exploded view of the frame-shaped slot base of this utility model after the limiting strip is removed;
[0023] Figure 5 This is a schematic diagram of the sliding plate and push plate in this utility model.
[0024] In the diagram: 1. Frame-shaped slot base; 11. Right-angled outer frame; 111. Slot; 112. Threaded hole; 12. Insertion port; 13. Push-out port; 14. Limiting stop bar; 141. Through hole; 15. Left card seat; 151. Groove; 152. Chamfer; 16. Screw; 17. Structural reinforcing rod; 171. Chamfer on reinforcing rod; 172. Sliding groove; 181. Sliding plate; 182. Push plate; 183. Anti-detachment holding block; 2. Sign body. Detailed Implementation
[0025] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Example:
[0027] like Figures 1 to 5As shown, this utility model discloses a rectangular sign, including a frame-shaped slot base 1 welded and fixed to the vehicle body and a sign body 2 detachably mounted on the frame-shaped slot base 1. The frame-shaped slot base 1 includes two L-shaped right-angled outer frames 11 arranged vertically opposite each other. The inner sides of the two right-angled outer frames 11 are provided with slots 111 for inserting the edge of the sign body 2. There is an insertion port 12 between the left sides of the two right-angled outer frames 11 and an ejection port 13 between the right sides of the two right-angled outer frames 11. In addition, the left end of the lower right-angled outer frame 11 is hinged to a limiting strip 14. The end of the limiting strip 14 away from the lower right-angled outer frame 11 is detachably connected to the left end of the upper right-angled outer frame 11.
[0028] The specific structure of the detachable connection is as follows: a threaded hole 112 is provided on the left end of the upper right-angled outer frame 11, and a through hole 141 corresponding to the threaded hole 112 is provided on the limiting stop bar 14. A screw 16 for threaded engagement with the threaded hole 112 is provided on the through hole 141. The screw 16 is preferably an internal hex screw 16, because it is easier to rotate with an internal hex wrench in this position.
[0029] Furthermore, a left card holder 15 is integrally formed on the side of the limiting strip 14 facing the insertion port 12. A slot 151 is provided on the left card holder 15 for the left edge of the sign body 2 to be inserted. This can further improve the structural strength of the rectangular sign body 2 located in the frame-shaped slot base 1. In addition, a chamfer 152 is provided at the opening of the slot 151 on the left card holder 15. The chamfer 152 facilitates the left edge of the sign body 2 to enter the slot 151.
[0030] In this invention, a plurality of structural reinforcing rods 17 are fixedly connected between the two right-angled outer frames 11, arranged equidistantly from left to right. These structural reinforcing rods 17 are vertically arranged, and their arrangement enhances the overall strength of the frame-shaped slot base 1. Furthermore, each structural reinforcing rod 17 has a chamfer 171 on one end facing the opening. The chamfer 171 design prevents the sign body 2 from being stuck when inserted.
[0031] In this utility model, the structural reinforcing rod 17 closest to the ejection port 13 has a sliding groove 172 that runs through the middle from left to right. A sliding plate 181 is slidably disposed on the sliding groove 172. The right end of the sliding plate 181 extends to the ejection port 13 and is integrally formed with a push plate 182. When the sign body 2 is inserted, the push plate 182 is located at the right end of the sign body 2.
[0032] In addition, the left end of the sliding plate 181 is integrally formed with an anti-disengagement support block 183, which ensures that the sliding plate 181 will not accidentally disengage from the sliding groove 172, thus ensuring the safety and reliability of operation.
[0033] The working principle of this utility model is as follows: During installation, the user pushes the sign body 2 into the slot 111 from the insertion port 12 side of the frame-shaped slot base 1 until it is fully in place. Then, the limiting stop 14, which is hinged to the lower right-angle outer frame 11, is rotated upward and fixed in the threaded hole 112 of the upper right-angle outer frame 11 with screws 16, thereby ensuring that the sign body 2 is firmly locked.
[0034] When the sign needs to be removed, the user simply loosens screw 16 to release the locking state of limit bar 14, and then rotates limit bar 14 downwards. Next, using push plate 182 on sliding plate 181, the sign body 2 is easily pushed out partially from the push-out port 13. Then, by grasping the pushed-out portion of sign body 2 with hand or a tool (such as pliers), the sign body 2 can be completely removed. This design not only ensures the safety of the sign during vehicle operation but also facilitates disassembly, improving work efficiency. Furthermore, the design of sliding plate 181 and push plate 182 takes into account user safety, effectively avoiding potential injury risks.
[0035] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rectangular signboard characterized by: The device includes a frame-shaped slot base welded and fixed to the vehicle body, and a sign body detachably mounted on the frame-shaped slot base. The frame-shaped slot base includes two L-shaped right-angled outer frames arranged vertically opposite each other. Each of the two right-angled outer frames has a slot on its inner side for inserting the edge of the sign body. There is an insertion port between the left sides of the two right-angled outer frames and an ejection port between the right sides of the two right-angled outer frames. The left end of the lower right-angled outer frame is hinged to a limit stop. The end of the limit stop away from the lower right-angled outer frame is detachably connected to the left end of the upper right-angled outer frame.
2. A rectangular signboard according to claim 1, characterized in that: A threaded hole is provided on the left end of the upper right-angled outer frame of the two right-angled outer frames. A through hole corresponding to the threaded hole is provided on the limiting strip. A screw for threaded engagement with the threaded hole is provided on the through hole.
3. A rectangular signboard according to claim 1, characterized in that: The limiting strip has a left card seat integrally formed on the side facing the insertion port. The left card seat has a slot for inserting the left edge of the sign body. The left card seat has a chamfer at the opening of the slot.
4. A rectangular signboard according to claim 1, characterized in that: Several structural reinforcing rods are fixedly connected between the two right-angled outer frames, arranged at equal intervals from left to right, and the structural reinforcing rods are vertically arranged.
5. A rectangular signboard according to claim 4, characterized in that: Each of the aforementioned structural reinforcing rods has a chamfered end facing the opening.
6. A rectangular signboard according to claim 5, characterized in that: The structural reinforcing rod closest to the ejection port has a sliding groove extending through the middle on both sides. A sliding plate is slidably disposed on the sliding groove. The right end of the sliding plate extends to the ejection port and is integrally formed with a push plate.
7. A rectangular signboard according to claim 6, characterized in that: The left end of the sliding plate is integrally formed with an anti-dislodgement support block.