Automatic pressure relief device for water storage tank of water tank fire-fighting vehicle
By designing an automatic pressure relief device, the problem of pressure imbalance inside the water tanker fire truck was solved, achieving automatic pressure balance inside the water tank and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-06
AI Technical Summary
The existing water tanker fire trucks lack effective automatic pressure relief devices during use, resulting in pressure imbalance inside the water tank and affecting the stability and safety of the equipment.
An automatic pressure relief device was designed, comprising a fixing buckle, a fixing cover, a pressure detector, an electromagnetic relay, a pressure relief pipe, and an electric throttle valve. The pressure detector detects the internal pressure of the water tank, and the electromagnetic relay and battery power drive the pressure relief pipe to automatically relieve pressure. The device also improves its structural strength by delaying structural corrosion through a damping layer and active electrodes.
It achieves automatic pressure balance inside the water tank, improving the stability and safety of the equipment and extending the service life of the device.
Smart Images
Figure CN223969401U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automatic pressure relief technology for water storage tanks, and particularly relates to an automatic pressure relief device for water storage tanks in water tank fire trucks. Background Technology
[0002] As a commonly used modern water transport device, the main function of a water tanker fire truck is to provide water storage space through a water tank and spray water to the fire scene through an output pipe for firefighting. In order to ensure the pressure balance of the water tank during the use of existing water tanker fire trucks, an automatic pressure relief device is required. When the pressure inside the water tank is too high, the air inside the water tank is transported to the external environment, thereby completing the pressure relief of the water tank. Utility Model Content
[0003] To achieve the above objectives, the present invention adopts the following technical solution:
[0004] An automatic pressure relief device for a water tanker fire truck includes a fixing buckle and a fixing cover. The fixing buckle is bolted to the top of the fixing cover. A pressure detector is connected through the top of the fixing cover. An electromagnetic relay is fixedly connected to the top of the fixing cover and is located in front of the pressure detector. Two pressure relief pipes are provided and are located outside the pressure detector. An electric throttle valve is connected through the outer surface of the pressure relief pipe.
[0005] Preferably, a first shock-absorbing layer is arranged inside the inner wall of the fixing buckle, and a second shock-absorbing layer is arranged inside the inner wall of the fixing cover.
[0006] Preferably, a connecting seat is fixedly connected to the inner side of the fixing buckle, and an active electrode is fixedly connected to the inner side of the connecting seat.
[0007] Preferably, a connecting wire is fixedly connected to the outer surface of the active electrode, and the connecting wire is connected to the fixing buckle.
[0008] Preferably, a battery is fixedly connected to the top of the fixed cover, and the battery is located behind the pressure detector. A charging interface is embedded in the top of the battery.
[0009] Preferably, a buzzer is fixedly connected to the back of the battery.
[0010] Compared with the prior art, the present invention has the following advantages:
[0011] This invention adds a first shock-absorbing layer, a second shock-absorbing layer, an active electrode, and a connecting wire. Both the first and second shock-absorbing layers are made of epoxy resin. When the impact force is transmitted to the inside of the fixing buckle and the fixing cover, the liquid epoxy resin in the first and second shock-absorbing layers absorbs part of the impact force through its viscosity, thereby improving the structural strength of the fixing buckle and the fixing cover. The active electrode is made of a metal material with high metal activity. When water vapor is conducted to the inside of the fixing buckle, the active electrode corrodes preferentially and transfers some electrons to the inside of the connecting wire. The connecting wire replenishes the electrons to the inside of the fixing buckle, thereby slowing down the corrosion rate of the fixing buckle and improving the structural strength of the automatic pressure relief device for the water tank. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of an automatic pressure relief device for the water tank of a water tank fire truck proposed in this utility model;
[0013] Figure 2 This is a schematic diagram of the rear structure of an automatic pressure relief device for a water tanker fire truck according to the present invention;
[0014] Figure 3 This is a cross-sectional view of the connecting part of the fixing buckle proposed in this utility model;
[0015] Figure 4 This is a cross-sectional view of the connecting part of the fixed cover proposed in this utility model.
[0016] In the diagram: 1. Fixing buckle; 2. Fixing cover; 3. Pressure detector; 4. Electromagnetic relay; 5. Pressure relief pipe; 6. Electric throttle valve; 7. First damping layer; 8. Second damping layer; 9. Connecting seat; 10. Active electrode; 11. Connecting wire; 12. Battery; 13. Charging interface; 14. Buzzer. Detailed Implementation
[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0018] Reference Figures 1-4An automatic pressure relief device for a water tanker fire truck includes a fixing buckle 1 and a fixing cover 2. The fixing cover 2 is bolted to the top of the fixing buckle 1. The fixing buckle 1 provides a fixing point for the fixing cover 2, a first shock-absorbing layer 7, and a connecting seat 9, which are fixedly connected to its outer surface. It is threaded to the top of the fire truck water tank and provides a fixing point for the fixing cover 2, which is bolted to its top. The fixing cover 2 is bolted to the top of the fixing buckle 1 and provides a fixing point for a pressure detector 3, an electromagnetic relay 4, a pressure relief pipe 5, a second shock-absorbing layer 8, and a battery 12, which are fixedly connected to its outer surface and interior. It also provides a shield for the top of the fixing buckle 1 and provides a fixing point for the pressure detector 3 and the electromagnetic relay 4, which are fixedly connected to its top. The pressure relief pipe 5 and the battery 12 provide a fixing point. A pressure detector 3 is connected through the top of the fixing cover 2. The pressure detector 3 is connected through the top of the fixing cover 2 to detect the pressure inside the water tank. When the pressure inside the water tank is too high, the pressure detector 3 sends an electrical signal to the inside of the electromagnetic relay 4. The top of the fixing cover 2 is fixedly connected to the electromagnetic relay 4. When the electrical signal is sent to the inside of the electromagnetic relay 4 through the pressure detector 3, the electromagnetic relay 4 reverses and sends the electrical energy inside the battery 12 to the inside of the electric throttle valve 6. At this time, the electric throttle valve 6 opens and drives the internal connection of the pressure relief pipe 5. The electromagnetic relay 4 is located in front of the pressure detector 3. A pressure relief pipe 5 is connected through the top of the tank. When the pressure relief pipe 5 is open, it outputs the air inside the water tank to the external environment, thereby balancing the pressure inside the water tank. There are two pressure relief pipes 5, and they are located outside the pressure detector 3. An electric throttle valve 6 is connected through the outer surface of the pressure relief pipe 5. When electrical energy is delivered to the inside of the electric throttle valve 6 via the battery 12, the electric throttle valve 6 opens, driving the inside of the pressure relief pipe 5 to connect. The battery 12 is fixedly connected to the top of the fixed cover 2. The battery 12 is fixedly connected to the top of the fixed cover 2, providing a fixing point for the charging interface 13 and buzzer 14 fixedly connected to its top and back, storing electrical energy inside. Electrical energy is supplied to the interior of the electromagnetic relay 4, and the battery 12 is located behind the pressure detector 3. A charging interface 13 is embedded in the top of the battery 12. The charging interface 13 is connected to an external power supply line via a power plug. At this time, the charging interface 13 supplies electrical energy to the interior of the battery 12, and the battery 12 stores the electrical energy inside. A buzzer 14 is fixedly connected to the back of the battery 12. When electrical energy is supplied to the interior of the buzzer 14 via the electromagnetic relay 4, the small lever inside the buzzer 14 vibrates at a high frequency and emits a sharp sound, thereby reminding the surrounding staff that the water tank is depressurizing.
[0019] Reference Figures 3-4The inner wall of the fixing buckle 1 is provided with a first shock-absorbing layer 7. When an impact force is transmitted to the inside of the fixing buckle 1, the liquid epoxy resin in the first shock-absorbing layer 7 absorbs part of the impact force through its viscosity, thereby improving the structural strength of the fixing buckle 1. The inner wall of the fixing cover 2 is provided with a second shock-absorbing layer 8. When an impact force is transmitted to the inside of the fixing cover 2, the liquid epoxy resin in the second shock-absorbing layer 8 absorbs part of the impact force through its viscosity, thereby improving the structural strength of the fixing cover 2. A connecting seat 9 is fixedly connected to the inner side of the fixing buckle 1. The connector 9 is fixedly connected to the inside of the fixing buckle 1, providing a fixing point for the active electrode 10 fixedly connected to its inside. The active electrode 10 is fixedly connected to the inside of the connector 9. The active electrode 10 is made of a metal material with high metal activity. When water vapor is conducted to the inside of the fixing buckle 1, the active electrode 10 will rust preferentially and transport some electrons to the inside of the connecting wire 11. The connecting wire 11 is fixedly connected to the outer surface of the active electrode 10. When electrons are transported to the inside of the connecting wire 11, the connecting wire 11 will replenish the electrons to the inside of the fixing buckle 1, thereby slowing down the corrosion rate of the fixing buckle 1. The connecting wire 11 is connected to the fixing buckle 1.
[0020] The functional principle of this utility model can be explained by the following operation: First, the fixing buckle 1 is rotated and inserted into the top of the water tank. At this time, the pressure detector 3 is powered by its internal battery to detect the pressure inside the water tank. When the pressure inside the water tank is too high, the pressure detector 3 sends an electrical signal to the electromagnetic relay 4. The electromagnetic relay 4 reverses and sends the electrical energy inside the storage battery 12 to the electric throttle valve 6. At this time, the electric throttle valve 6 opens and drives the internal connection of the pressure relief pipe 5. When the pressure relief pipe 5 is connected, the air inside the water tank is output to the external environment, thereby completing the output of air to balance the pressure inside the water tank.
[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An automatic pressure relief device for a water tank of a water tank fire fighting vehicle, comprising a fixing buckle (1) and a fixing cover (2), characterized in that, The top of the fixed buckle (1) is bolted with a fixed cover (2), the top of the fixed cover (2) is connected with a pressure detector (3), the top of the fixed cover (2) is fixedly connected with an electromagnetic relay (4), and the electromagnetic relay (4) is located in front of the pressure detector (3), the top of the fixed cover (2) is connected with a pressure relief pipe (5), the pressure relief pipe (5) is provided with two, and the pressure relief pipe (5) is located outside the pressure detector (3), the outer surface of the pressure relief pipe (5) is connected with an electric throttle valve (6).
2. A water tank fire vehicle water tank automatic pressure relief device according to claim 1, characterized in that, The inner wall of the fixed buckle (1) is arranged with a first shock absorbing layer (7), and the inner wall of the fixed cover (2) is arranged with a second shock absorbing layer (8).
3. The automatic pressure relief device for a water tank of a water tank fire fighting vehicle according to claim 1, characterized in that, The inner side of the fixed buckle (1) is fixedly connected with a connecting seat (9), and the inner side of the connecting seat (9) is fixedly connected with an active electrode (10).
4. A water tank fire vehicle water tank automatic pressure relief device according to claim 3, characterized in that, The outer surface of the active electrode (10) is fixedly connected with a connecting wire (11), and the connecting wire (11) is connected with the fixed buckle (1).
5. The automatic pressure relief device for a water tank of a water tank fire fighting vehicle according to claim 1, characterized in that, The top of the fixed cover (2) is fixedly connected with a storage battery (12), and the storage battery (12) is located behind the pressure detector (3), and the top of the storage battery (12) is inlaidly connected with a charging interface (13).
6. A water tank fire vehicle water tank automatic pressure relief device according to claim 5, characterized in that, The back of the storage battery (12) is fixedly connected with a buzzer (14).