Municipal engineering warning device
By introducing a limiting unit consisting of a rotating bar and an arc-shaped compression seat into the warning device for municipal engineering, the problem of movement and tipping of the device on steep ground was solved, thus improving stability and balance.
Patent Information
- Application Number
- CN202520440049.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing warning devices in municipal engineering projects are prone to movement and tipping over on steep slopes, resulting in poor fixation, inadequate stability, and insufficient balance.
A municipal engineering warning device was designed, comprising a warning guardrail unit, a moving unit, and a limiting unit. By setting first and second roller units on the support base and utilizing the cooperation of a rotating bar and an arc-shaped pressing seat, the device can be moved and fixed, ensuring stability on sloping ground.
This effectively prevents the warning device from sliding and tipping over on steep slopes, ensuring the overall balance and stability of the device and avoiding sliding and tipping during collisions.
Smart Images

Figure CN223837962U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction protection technology, specifically to a warning device for municipal engineering. Background Technology
[0002] During construction, it is often necessary to carry out warning and protection measures at the construction site to avoid accidents and protect the personal safety of relevant workers. Warning devices are commonly used in this regard.
[0003] Existing municipal engineering warning devices are heavy and difficult to move. To facilitate movement, casters are usually installed at the bottom of the device. While this allows for quick repositioning, it fails to achieve effective balance and stability, especially on steep slopes. Conventional gravity-locking mechanisms are ineffective in preventing slippage, leading to frequent collisions and excessive sliding and tipping of the warning devices. Therefore, there is an urgent need for a new type of municipal engineering warning device to address these problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a municipal engineering warning device that addresses the shortcomings of the existing technology by providing a device that can solve the problems of existing warning guardrails being prone to movement and tipping over when placed on sloping ground with a large slope, as well as the problems of poor fixing effect, poor overall balance and stability of the device.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a municipal engineering warning device, including a warning guardrail unit, a moving unit, and a limiting unit; the warning guardrail unit includes a warning guardrail, and a supporting base is fixedly connected to both sides of the warning guardrail; the moving unit includes a first roller unit and a second roller unit, each of the first roller unit and the second roller unit being composed of two oppositely arranged rollers, and the first roller unit and the second roller unit are rotatably connected to both sides of the bottom end of the supporting base; oppositely arranged fixing blocks are fixedly connected to the outer wall of the supporting base, and a rotating strip is rotatably connected between the fixing blocks, with the bottom of the rotating strip located between the first roller unit and the second roller unit; the limiting unit includes two arc-shaped pressing seats, the arc-shaped pressing seats are fixedly connected to both sides of the rotating strip, and the two arc-shaped pressing seats are respectively in contact with the outer walls of the first roller unit and the second roller unit, and the arc-shaped pressing seats press and position the first roller unit and the second roller unit.
[0006] Furthermore, a rotating shaft is rotatably connected to the top of the rotating bar, and both ends of the rotating shaft are fixedly inserted into the fixing block.
[0007] Furthermore, the outer wall of the support base is provided with a fixing hole, and the bottom of the rotating bar is provided with a fixing shaft. The fixing shaft, in conjunction with the fixing hole, can limit and fix the rotating bar.
[0008] Furthermore, the end of the fixed shaft is rounded to prevent scratching with the support base during movement.
[0009] Furthermore, an annular rubber pad is installed on the inner wall of the fixing hole.
[0010] Furthermore, the contact surfaces of the arc-shaped extrusion seat with the first roller unit and the second roller unit are provided with anti-slip grooves.
[0011] Compared with the prior art, the present invention has the following advantages: by setting the fixing hole and the rotating bar, the municipal engineering warning device can be moved and fixed. The user can move the municipal engineering warning device by pushing the rotating bar upward. By putting down the rotating bar, the first roller unit and the second roller unit are squeezed by the two arc-shaped compression seats, thus fixing the municipal engineering warning device. This prevents the municipal engineering warning device from moving easily when it is on a steep slope. At the same time, the first roller unit and the second roller unit ensure the stability of the support base, thereby effectively ensuring the overall balance and stability of the warning guardrail and avoiding excessive sliding and tipping of the warning guardrail in the event of a collision. Attached Figure Description
[0012] 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.
[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0014] Figure 2 for Figure 1 A schematic diagram of the connection between the support base and the roller unit in the embodiment shown;
[0015] Figure 3 for Figure 1 A schematic diagram of the rotating bar in the embodiment shown;
[0016] The following are the markings in the attached diagram: 1. Warning guardrail; 2. Support base; 3. First roller unit; 4. Second roller unit; 5. Fixing block; 6. Rotating bar; 7. Rotating shaft; 8. Fixing hole; 9. Fixing shaft; 10. Arc-shaped extrusion seat. Detailed Implementation
[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. 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.
[0018] Reference Figures 1 to 3 A municipal engineering warning device includes a warning guardrail unit, a moving unit, and a limiting unit. The warning guardrail unit includes a warning guardrail 1, with a support base 2 fixedly connected to both sides of the warning guardrail 1. The moving unit includes a first roller unit 3 and a second roller unit 4, each consisting of two oppositely arranged rollers. The first roller unit 3 and the second roller unit 4 are rotatably connected to both sides of the bottom end of the support base 2. By placing the first roller unit 3 and the second roller unit 4 on both sides of the bottom end of the support base 2, the support for the support base 2 is improved, ensuring... The stability of the support base 2 is ensured, thereby effectively guaranteeing the balance and stability of the warning guardrail 1. The outer wall of the support base 2 is fixedly connected to relatively arranged fixing blocks 5, and a rotating bar 6 is rotatably connected between the fixing blocks 5. The bottom of the rotating bar 6 is located between the first roller unit 3 and the second roller unit 4. The limiting unit includes two arc-shaped compression seats 10, which are fixedly connected to both sides of the rotating bar 6. The two arc-shaped compression seats 10 are respectively attached to the outer walls of the first roller unit 3 and the second roller unit 4, and the arc-shaped compression seats 10 compress and position the first roller unit 3 and the second roller unit 4.
[0019] This device, by pushing the rotating bar 6 upwards, separates the two arc-shaped compression seats 10 connected to the rotating bar 6 from the corresponding first roller unit 3 and second roller unit 4. At this time, the first roller unit 3 and second roller unit 4 can rotate, allowing the municipal engineering warning device to move via the first roller unit 3 and second roller unit 4. By lowering the rotating bar 6, the two arc-shaped compression seats 10 contact and compress with the corresponding first roller unit 3 and second roller unit 4, compressing and limiting the first roller unit 3 and second roller unit 4, thus fixing the municipal engineering warning device and preventing it from easily moving when it is on a steep, sloping surface.
[0020] Specifically, the top of the rotating bar 6 is rotatably connected to a rotating shaft 7, and both ends of the rotating shaft 7 are fixedly inserted into the fixing block 5.
[0021] Specifically, the outer wall of the support base 2 is provided with a fixing hole 8, and the bottom of the rotating bar 6 is provided with a fixing shaft 9. The fixing shaft 9, in conjunction with the fixing hole 8, can limit and fix the rotating bar 6. By rotating the rotating bar 6, the fixing shaft 9 is driven to be inserted into the fixing hole 8, thereby limiting the rotating bar 6.
[0022] Specifically disclosed, the end of the fixed shaft 9 is treated with a circular end face. The circular end face can prevent scratching with the support base 2 during movement, thereby facilitating the insertion of the end of the fixed shaft 9 into the fixed hole 8. At the same time, it is convenient for the rotating bar 6 to be inserted between the first roller unit 3 and the second roller unit 4. The two arc-shaped extrusion seats 10 limit the first roller unit 3 and the second roller unit 4.
[0023] It should be particularly emphasized that an annular rubber pad is installed on the inner wall of the fixing hole 8, which facilitates the insertion of the fixing shaft 9 into the fixing hole 8. The fixing shaft 9 contacts and is squeezed by the annular rubber pad, ensuring that the fixing shaft 9 and the support base 2 are relatively stable.
[0024] Specifically, the contact surfaces of the arc-shaped extrusion seat 10 with the first roller unit 3 and the second roller unit 4 are provided with multiple anti-slip grooves to improve the restriction of the arc-shaped extrusion seat 10 on the first roller unit 3 and the second roller unit 4.
[0025] When moving the municipal engineering warning device, the rotating bar 6 is lifted upwards to the fixing hole 8, so that the arc-shaped pressing seat 10 fixedly connected in the rotating bar 6 is separated from the first roller unit 3 and the second roller unit 4. At this time, the fixing shaft 9 fits into the inside of the fixing hole 8, fixing the rotating bar 6, thereby allowing the municipal engineering warning device to move. When using the municipal engineering warning device, the rotating bar 6 is lowered and inserted between the first roller unit 3 and the second roller unit 4, so that the two arc-shaped pressing seats 10 press against the corresponding first roller unit 3 and second roller unit 4, so that the first roller unit 3 and the second roller unit 4 cannot slide relative to the ground, thereby fixing the municipal engineering warning device.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A warning device for municipal engineering projects, comprising a warning guardrail unit, a moving unit, and a limiting unit; the warning guardrail unit includes a warning guardrail, and both sides of the warning guardrail are fixedly connected to a supporting base; characterized in that: The moving unit includes a first roller unit and a second roller unit, each consisting of two oppositely arranged rollers. The first roller unit and the second roller unit are rotatably connected to both sides of the bottom end of the support base. Oppositely arranged fixing blocks are fixedly connected to the outer wall of the support base, and a rotating strip is rotatably connected between the fixing blocks. The bottom of the rotating strip is located between the first roller unit and the second roller unit. The limiting unit includes two arc-shaped pressing seats, which are fixedly connected to both sides of the rotating strip. The two arc-shaped pressing seats respectively conform to the outer walls of the first roller unit and the second roller unit, and the arc-shaped pressing seats press and position the first roller unit and the second roller unit. A fixing hole is provided on the outer wall of the support base, and a fixing shaft is provided at the bottom of the rotating strip. The fixing shaft, in conjunction with the fixing hole, can limit and fix the rotating strip.
2. The municipal engineering warning device according to claim 1, characterized in that: The top of the rotating bar is rotatably connected to a rotating shaft, and both ends of the rotating shaft are fixedly inserted into a fixed block.
3. The municipal engineering warning device according to claim 1 or 2, characterized in that: The end of the fixed shaft is rounded to prevent it from scratching the support base during movement.
4. The municipal engineering warning device according to claim 1 or 2, characterized in that: An annular rubber pad is installed on the inner wall of the fixing hole.
5. The municipal engineering warning device according to claim 1 or 2, characterized in that: The contact surfaces of the arc-shaped extrusion seat with the first roller unit and the second roller unit are provided with anti-slip grooves.