Warning guardrail
By integrating human body sensors and a venturi spray system into the warning fence, proactive warnings to climbers and dust suppression in the construction area are achieved, solving the problem that traditional fences cannot effectively prevent people from entering and improving the safety and environmental protection of the construction site.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN JINYUE HIGHWAY ENGINEERING CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-22
Smart Images

Figure CN224266450U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of guardrail technology, specifically relating to a warning guardrail. Background Technology
[0002] In today's rapidly developing construction industry, safety protection at construction sites remains a top priority in project management. According to relevant statistics from the Ministry of Housing and Urban-Rural Development, a certain proportion of accidents resulting in injuries or fatalities are still caused by inadequate safety protection measures in construction areas each year. Among these accidents, those caused by unauthorized entry into dangerous areas or climbing construction fences are particularly common.
[0003] Traditional warning barriers typically only provide simple physical isolation, mainly by painting warning colors or posting slogans to remind people to pay attention to safety. However, this passive warning method has limited effectiveness and is difficult to effectively prevent people from entering the construction area without authorization. Utility Model Content
[0004] To address the above problems, the purpose of this utility model is to provide a warning guardrail that solves the problem that traditional warning guardrails, which typically only have simple physical isolation functions, are unable to effectively prevent people from entering the construction area without authorization, and some of the problems of improved guardrails.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a warning guardrail, comprising a water tank, a protective assembly connected to the top surface of the water tank, the protective assembly comprising a horizontal plate, side plates fixed at both ends of the horizontal plate fixed to the top surface of the water tank, and the top surfaces of the two sets of side plates connected to a top plate, a fixing plate fixed to one side of the top plate, and a connecting plate provided at the end of the fixing plate away from the top plate, a warning assembly provided on the connecting plate, the warning assembly comprising a human body sensor, the human body sensor being connected to an electrical wire disposed on the top surface of the connecting plate, and so on. The human body sensor is electrically connected to a controller located on one side of the bottom of the side panel. The controller is electrically connected to a water supply assembly and a water pump. The water pump is connected to an alarm assembly through the water supply assembly. The water supply assembly includes a water supply pipe, one end of which is connected to the water pump, and the other end of which is connected to a two-position three-way valve fixed on one side of the side panel. One end of the two-position three-way valve is connected to one end of a venturi tube, and the other end of the venturi tube is connected to a connecting pipe. A water inlet pipe is installed through the middle section of the venturi tube and is connected to a liquid storage tank.
[0006] The beneficial effects of this utility model are:
[0007] By combining a human body sensor with the magnetic field induction of the wires, the controller automatically triggers the sprinkler system when someone is detected climbing the guardrail. Through the special structural design of the Venturi tube, a negative pressure is created in the narrow section using Bernoulli's principle, which automatically draws in the concentrated colored liquid from the storage tank and mixes it thoroughly with the water flow. The colored liquid is then sprayed at the climber, forming an active warning and punishment mechanism. Compared with traditional passive warning methods, this is more deterrent and can effectively prevent unauthorized personnel from entering the construction area, significantly reducing the probability of safety accidents.
[0008] The atomizing nozzle on connecting pipe one faces the construction area and can atomize the liquid to form a fine water mist, which can adsorb dust particles in the air and achieve dust reduction on the construction site. This not only improves the construction environment and protects the health of construction workers, but also reduces dust pollution to the surrounding environment, which meets the requirements of green construction. At the same time, the nozzle on connecting pipe two can spray colored liquid when necessary to achieve a warning function, so that the guardrail has both environmental protection and safety protection functions.
[0009] To improve the safety and protection performance of the guardrails:
[0010] As a further improvement to the above technical solution: a guide plate is provided below the second connecting pipe, and the two ends of the guide plate are connected to the inner sides of the oppositely arranged side plates, and a limiting plate is fixed on the inner side of one set of side plates. The liquid storage tank is fixed on the top surface of the limiting plate, and several baffles are fixed at equal intervals between the horizontal plate and the guide plate.
[0011] The beneficial effects of this improvement are as follows: the limiting plate provides stable support for the liquid storage tank, ensuring the stability of the liquid storage tank during use; the stop bar increases the protective strength of the protective components, preventing personnel or objects from passing through the gap between the horizontal plate and the guide plate, further enhancing the safety performance of the guardrail.
[0012] To inject the concentrated colored liquid into the storage tank:
[0013] As a further improvement to the above technical solution: the top of the liquid storage tank is provided with a liquid injection hole.
[0014] The beneficial effect of this improvement is that users can inject concentrated colored liquid into the storage tank.
[0015] To enhance the safety and warning functions of guardrails:
[0016] As a further improvement to the above technical solution: one end of the two-position three-way valve is connected to one end of the water supply pipe two, and one end of the water supply pipe two is connected to the connecting pipe one. The connecting pipe one is set on one side of the connecting pipe two. The connecting pipe one and the connecting pipe two are fixed on the inner top of the oppositely installed side plate. Several atomizing nozzles are fixedly installed through the side of the connecting pipe one that is opposite to the connecting pipe two at equal intervals. Several nozzles are fixedly installed through the side of the connecting pipe two that is opposite to the connecting pipe one at equal intervals. The nozzles are inclined and their nozzles face the top surface of the guide plate.
[0017] The beneficial effects of this improvement are as follows: The atomizing nozzle on connecting pipe one faces the construction area, which can atomize the liquid and spray it out to form a fine water mist, effectively adsorbing dust particles in the air, reducing dust in the construction area, improving the construction environment, protecting the health of construction workers, and reducing dust pollution to the surrounding environment. The nozzle on connecting pipe two is tilted towards the outside of the construction area. When someone is detected attempting to climb the guardrail, the controller controls the two-position three-way valve to switch the valve path, causing the colored liquid in the storage tank to be sprayed out through the nozzle to spray a warning to the climber. This not only stops the violation in time, but also marks the violator with color, which is convenient for subsequent management. This further strengthens the safety protection and warning function of the guardrail and improves the safety and order of the building construction area.
[0018] To guide the colored liquid flowing down from the top surface of the connecting pipe:
[0019] As a further improvement to the above technical solution: a flow guide seat is fixed on one side of the water storage tank.
[0020] The beneficial effect of this improvement is that it guides the colored liquid flowing down from the top surface of the connecting pipe.
[0021] To warn pedestrians:
[0022] As a further improvement to the above technical solution: a placement seat is fixedly provided on one side of the fixing plate, and a number of lighting lamps are fixedly provided at equal intervals on the top of the placement seat corresponding to one side of the fixing plate.
[0023] The beneficial effects of this improvement are as follows: the installation of lighting allows the guardrail to serve as a good warning at night, improving the safety of nighttime construction. Construction workers can clearly see the position of the guardrail in low light conditions, avoiding accidental collisions or accidentally entering dangerous areas. Construction workers can place warning signs in the placement base to warn passersby.
[0024] To effectively avoid interference with the circuit's magnetic field:
[0025] As a further improvement to the above technical solution, the connecting plate is made of plastic.
[0026] The beneficial effects of this improvement are as follows: the use of a plastic connecting plate, which has non-magnetic properties, can effectively avoid interference with the magnetic field of the circuit, ensuring that the human body sensor accurately senses human body signals and that the wires transmit signals stably.
[0027] For automatic switching of the valve circuit of the two-position three-way valve:
[0028] As a further improvement to the above technical solution: the controller includes multiple DC power supply modules and relay modules. The VCC pin of the human body sensor is connected to the positive terminal of the 5V DC power supply in the controller, the VSS pin is connected to the negative terminal of the 5V DC power supply, the CX pin is connected to the wire of the sensing loop, and the OUT pin is electrically connected to the relay module in the controller. The relay module is electrically connected to the two-position three-way valve.
[0029] The beneficial effect of this improvement is that by using a human body induction sensor and connecting wires and relays, the device can automatically switch the valve circuit of the two-position three-way valve after detecting the presence of a human body.
[0030] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of this utility model;
[0032] Figure 2 This is a schematic diagram of the structure of this utility model;
[0033] Figure 3 This is a schematic diagram of the structure of this utility model;
[0034] Figure 4 This is an enlarged structural diagram of point A in this utility model;
[0035] In the diagram: 1. Water storage tank; 2. Flow guide seat; 3. Protective component; 301. Limiting plate; 302. Horizontal plate; 303. Stop bar; 304. Side plate; 4. Top plate; 5. Fixing plate; 501. Connecting plate; 6. Placement seat; 7. Flow guide plate; 8. Water supply component; 801. Two-position three-way valve; 802. Water supply pipe one; 803. Water supply pipe two; 9. Warning component; 901. Human body sensor; 902. Wire; 903. Liquid storage tank; 904. Venturi tube; 10. Controller; 11. Water pump; 12. Connecting pipe one; 13. Connecting pipe two. Detailed Implementation
[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0037] like Figure 1-4 As shown, a warning guardrail includes a water tank 1. A protective assembly 3 is connected to the top surface of the water tank 1. The protective assembly 3 includes a horizontal plate 302. Side plates 304 are fixed to both ends of the horizontal plate 302 fixed to the top surface of the water tank 1. The top surfaces of the two sets of side plates 304 are connected to a top plate 4. A fixing plate 5 is fixed to one side of the top plate 4, and a connecting plate 501 is provided at the end of the fixing plate 5 away from the top plate 4. A warning assembly 9 is provided on the connecting plate 501. The warning assembly 9 includes a human body sensor 901. The human body sensor 901 is connected to an electrical wire 902 disposed on the top surface of the connecting plate 501. The human body sensor 901 is electrically connected to... A controller 10 is installed on one side of the bottom of the side plate 304. The controller 10 is electrically connected to the water supply assembly 8 and the water pump 11. The water pump 11 is connected to the warning assembly 9 through the water supply assembly 8. The water supply assembly 8 includes a water supply pipe 802. One end of the water supply pipe 802 is connected to the water pump 11, and the other end of the water supply pipe 802 is connected to a two-position three-way valve 801 fixed on one side of the side plate 304. One end of the two-position three-way valve 801 is connected to one end of a venturi tube 904. The other end of the venturi tube 904 is connected to a connecting pipe 13. A water inlet pipe is installed through the middle section of the venturi tube 904 and is connected through the liquid storage tank 903.
[0038] A guide plate 7 is provided below the connecting pipe 13, and the two ends of the guide plate 7 are connected to the inner sides of the oppositely arranged side plates 304. A limiting plate 301 is fixedly provided on the inner side of one set of side plates 304. The liquid storage tank 903 is fixed on the top surface of the limiting plate 301. Several baffles 303 are fixedly provided at equal intervals between the horizontal plate 302 and the guide plate 7. The limiting plate 301 provides stable support for the liquid storage tank 903, ensuring the stability of the liquid storage tank 903 during use. The baffles 303 increase the protective strength of the protective component 3, preventing personnel or objects from passing through the gap between the horizontal plate 302 and the guide plate 7, and further improving the safety protection performance of the guardrail.
[0039] The top of the liquid storage tank 903 has a through-hole for injecting liquid; the user can inject the concentrated colored liquid into the liquid storage tank 903.
[0040] One end of the two-position three-way valve 801 is connected to one end of the second water supply pipe 803, and one end of the second water supply pipe 803 is connected to the first connecting pipe 12. The first connecting pipe 12 is located on one side of the second connecting pipe 13. The first connecting pipe 12 and the second connecting pipe 13 are fixed to the inner top of the oppositely installed side plate 304. Several atomizing nozzles are equidistantly fixed through the side of the first connecting pipe 12 facing away from the second connecting pipe 13, and several nozzles are equidistantly fixed through the side of the second connecting pipe 13 facing away from the first connecting pipe 12. The nozzles are inclined and their nozzles face the top surface of the guide plate 7. The atomizing nozzles on the first connecting pipe 12 face the construction area and can atomize and spray the liquid. The system produces a fine water mist that effectively absorbs dust particles in the air, reducing dust in the construction area, improving the working environment, protecting the health of construction workers, and reducing dust pollution to the surrounding environment. The nozzle of connecting pipe 2 13 is tilted towards the outside of the construction area. When an attempt to climb the guardrail is detected, the controller 10 controls the two-position three-way valve 801 to switch the valve path, causing the colored liquid in the storage tank 903 to be sprayed out through the nozzle to spray and warn the climber. This not only stops violations in time but also marks the violators with color, facilitating subsequent management and further strengthening the safety protection and warning function of the guardrail, thus improving the safety and order of the building construction area.
[0041] A flow guide seat 2 is fixedly provided on one side of the water storage tank 1; the flow guide seat 2 can guide the colored liquid flowing down from the top surface of the connecting pipe 12.
[0042] A placement seat 6 is fixedly provided on one side of the fixed plate 5, and several lighting lamps are fixedly provided at equal intervals on the top of the placement seat 6 corresponding to one side of the fixed plate 5. The lighting lamps enable the guardrail to play a good warning role at night, improve the safety of night construction, and allow construction workers to clearly see the position of the guardrail in the case of insufficient light, so as to avoid accidental collisions or accidentally entering dangerous areas. Construction workers can place warning signs in the placement seat 6 to warn pedestrians.
[0043] The connecting plate 501 is made of plastic. The plastic connecting plate 501, with its non-magnetic properties, can effectively avoid interference with the magnetic field of the circuit, ensuring that the human body sensor 901 accurately senses human body signals and the wire 902 stably transmits signals.
[0044] The controller 10 includes multiple DC power supply modules and relay modules. The VCC pin of the human body sensor 901 is connected to the positive terminal of the 5V DC power supply in the controller 10, the VSS pin is connected to the negative terminal of the 5V DC power supply, the CX pin is connected to the sensing loop wire 902, and the OUT pin is electrically connected to the relay module in the controller 10. The relay module is electrically connected to the two-position three-way valve 801. Through the connection and use of the human body sensor 901, the wire 902, and the relay, the device can automatically switch the valve circuit of the two-position three-way valve 801 after detecting the presence of a human body.
[0045] The human body sensor 901 in this embodiment is model number TC301D.
[0046] The working principle and usage process of this utility model are as follows: When using this device, it can first be moved to a designated location and installed around the construction area. The atomizing nozzle on the connecting pipe 12 is directed towards the construction area. Then, concentrated colored liquid is injected into the storage tank 903 through the injection hole at the top of the storage tank 903. At the same time, the water tank 1 is filled with water. The controller 10 drives the water pump 11, which delivers water from the water tank 1 to the connecting pipe 12 through the water delivery pipe 802 and the two-position three-way valve 801. The water is then sprayed out through the atomizing nozzle to form a fine water mist, which reduces dust in the construction area and improves the construction environment. When someone climbs the guardrail and enters the magnetic field sensing range of the wire 902 connected to the human body sensor 901, the human body sensor 901 senses the change in magnetic field through the wire 902 and transmits the signal to the controller 10. After receiving the signal, the relay module in the controller 10 controls the two-position three-way valve 801 to switch the valve path according to the preset program. After the three-way valve 801 switches, the water pump 11 delivers water from the water storage tank 1 to the venturi tube 904 through the water delivery assembly 8. The venturi tube 904 has a reduced diameter section in its middle. When water flows through this reduced diameter section, according to Bernoulli's principle, the fluid velocity increases and the pressure decreases, creating a negative pressure zone. At this time, the inlet pipe installed through the middle section of the venturi tube 904 is connected to the liquid storage tank 903. The negative pressure draws the concentrated colored liquid from the liquid storage tank 903 into the venturi tube 904, where it interacts with the liquid. The water flow is fully mixed, and the mixed colored liquid is sprayed out from the nozzle tilted towards the outside of the construction area through the connecting pipe 2 13 to spray and warn climbers. At the same time, the colored liquid adheres to the climbers and serves as a marker for easy subsequent management. When the climber leaves the magnetic field sensing range of the power line 902, the human body sensor 901 stops sending signals, and the controller 10 controls the two-position three-way valve 801 to switch back to the initial valve path, stopping the spray warning, and the guardrail returns to normal protection and dust suppression status.
[0047] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered within the protection scope of this utility model.
Claims
1. A warning guardrail, characterized in that: The system includes a water storage tank (1), the top surface of which is connected to a protective assembly (3). The protective assembly (3) includes a horizontal plate (302). The horizontal plate (302) fixed to the top surface of the water storage tank (1) has side plates (304) fixed at both ends. The top surfaces of the two sets of side plates (304) are connected to a top plate (4). A fixing plate (5) is fixed to one side of the top plate (4), and a connecting plate (501) is provided at the end of the fixing plate (5) away from the top plate (4). A warning assembly (9) is provided on the connecting plate (501). The warning assembly (9) includes a human body sensor (901). The human body sensor (901) is connected to an electric wire (902) provided on the top surface of the connecting plate (501). The human body sensor (901) is electrically connected to the... On one side of the bottom of the side plate (304), there is a controller (10) electrically connected to the water supply assembly (8) and the water pump (11), and the water pump (11) is connected to the warning assembly (9) through the water supply assembly (8). The water supply assembly (8) includes a water supply pipe (802), one end of which is connected to the water pump (11), and the other end of which is connected to a two-position three-way valve (801) fixed on one side of the side plate (304). The two-position three-way valve (801) is connected to one end of a venturi tube (904), and the other end of the venturi tube (904) is connected to a connecting pipe (13). A water inlet pipe is installed through the middle section of the venturi tube (904), and the water inlet pipe is connected through the liquid storage tank (903).
2. The warning guardrail according to claim 1, characterized in that: A guide plate (7) is provided below the second connecting pipe (13), and the two ends of the guide plate (7) are connected to the inner sides of the oppositely arranged side plates (304). A limiting plate (301) is fixedly provided on the inner side of one set of side plates (304). The liquid storage tank (903) is fixed on the top surface of the limiting plate (301). Several baffles (303) are fixedly provided at equal intervals between the horizontal plate (302) and the guide plate (7).
3. A warning guardrail according to claim 1, characterized in that: The top of the liquid storage tank (903) is provided with a liquid injection hole.
4. A warning guardrail according to claim 1, characterized in that: One end of the two-position three-way valve (801) is connected to one end of the water supply pipe two (803), and one end of the water supply pipe two (803) is connected to the connecting pipe one (12). The connecting pipe one (12) is located on one side of the connecting pipe two (13). The connecting pipe one (12) and the connecting pipe two (13) are fixed on the inner side of the top of the oppositely installed side plate (304). Several atomizing nozzles are fixedly installed through the side of the connecting pipe one (12) facing away from the connecting pipe two (13) at equal intervals, and several nozzles are fixedly installed through the side of the connecting pipe two (13) facing away from the connecting pipe one (12) at equal intervals. The nozzles are inclined and their nozzles face the top surface of the guide plate (7).
5. A warning guardrail according to claim 1, characterized in that: A flow guide seat (2) is fixed on one side of the water storage tank (1).
6. A warning guardrail according to claim 1, characterized in that: A placement seat (6) is fixedly provided on one side of the fixing plate (5), and a number of lighting lamps are fixedly provided at equal intervals on the top of the placement seat (6) corresponding to one side of the fixing plate (5).
7. A warning guardrail according to claim 1, characterized in that: The connecting plate (501) is made of plastic.
8. A warning guardrail according to claim 1, characterized in that: The controller (10) includes multiple DC power supply modules and relay modules. The VCC pin of the human body sensor (901) is connected to the positive terminal of the 5V DC power supply in the controller (10), the VSS pin is connected to the negative terminal of the 5V DC power supply, the CX pin is connected to the wire (902) of the sensing loop, and the OUT pin is electrically connected to the relay module in the controller (10). The relay module is electrically connected to the two-position three-way valve (801).