An electric front-end crane equipped with a fire extinguishing system

Abstract

This utility model discloses an electric front-end crane equipped with a fire extinguishing system, including a hoisting mechanism mounted on a vehicle frame and a vehicle powertrain arranged within the vehicle frame. Both the hoisting drive assembly and the vehicle powertrain are electrically driven. The invention is characterized by its inclusion of a fire extinguishing system, comprising at least one reservoir fixed to the vehicle frame and a spray module connected to at least one end of the reservoir. Firstly, the fire extinguishing system, distributed on both sides of the vehicle frame, provides targeted monitoring and fire suppression of different vehicle electrical systems. Secondly, the use of highly rigid spray pipes reduces high-pressure jet resistance and avoids the problem of reduced fire extinguishing efficiency due to jet pressure attenuation.

Description

Technical Field

[0001] This utility model relates to the field of electric front-end crane for fire extinguishing, and in particular to an electric front-end crane equipped with a fire extinguishing system. Background Technology

[0002] As a core piece of equipment in container terminals and yards, reach stackers have undergone technological iterations, gradually transitioning from traditional diesel-powered systems to electric powertrains. Driven by the demands for environmental protection and green port construction, while electric reach stackers offer significant emission reduction advantages, their high-power battery and electric drive systems may overheat or malfunction during continuous operation, potentially causing fires and, in extreme cases, even posing a fire hazard.

[0003] In existing technologies, traditional fire suppression systems often employ a centralized layout, integrating the fire suppression equipment into the central area of ​​the vehicle body. This design makes it difficult to simultaneously and directionally extinguish multiple critical fire areas distributed along the sides of the vehicle frame, such as the battery compartment, the front drive motor, and the central hydraulic system. Furthermore, due to insufficient rigidity of the piping materials and inadequate spacing design, the fire suppression piping is prone to deformation under vibration during equipment operation, leading to increased flow resistance of the extinguishing medium, decreased spray pressure, and a significant reduction in fire suppression efficiency. Utility Model Content

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An electric front-end crane equipped with a fire extinguishing system includes a hoisting mechanism mounted on a vehicle frame and a power assembly arranged within the vehicle frame. The hoisting drive assembly and the vehicle power assembly are electrically driven. The fire extinguishing system includes at least one reservoir fixed on the vehicle frame and a spray module connected to at least one end of the reservoir.

[0006] The spray module includes a spray pipe connected at one end to the reservoir and a nozzle disposed at the other end of the spray pipe toward the vehicle powertrain and / or hoisting drive assembly.

[0007] The spray pipe is fixed to the vehicle frame by several fixing clips, and the spacing between the fixing clips is 380mm.

[0008] Furthermore, the vehicle powertrain includes a drive motor disposed at the front end of the vehicle frame and a first battery compartment and a second battery compartment mounted on the outside of the vehicle frame.

[0009] The storage unit includes a first storage unit and a second storage unit fixed to the side plate of the vehicle frame. The first storage unit is connected to the front drive motor through a first spray pipe and to the first battery compartment through a second spray pipe. The second storage unit is connected to the hoisting drive assembly in the middle through a third spray pipe and to the second battery compartment through a fourth spray pipe.

[0010] Furthermore, the side panel includes a first side panel and a second side panel that are positioned opposite each other on both sides of the vehicle frame. The first reservoir, the first spray pipe and the second spray pipe are fixed to the inner side of the first side panel, and the second reservoir, the third spray pipe and the fourth spray pipe are fixed to the inner side of the second side panel.

[0011] Furthermore, the first battery compartment is fixed to the outside of the first side panel, and the second battery compartment is fixed to the outside of the second side panel.

[0012] Furthermore, the storage device includes a tank and a control valve disposed between the tank and the spray pipe, and the tank contains a fire extinguishing medium.

[0013] Furthermore, the extinguishing medium is perfluorohexanone.

[0014] Furthermore, the spray pipe is made of stainless steel.

[0015] The beneficial effects of this utility model are as follows:

[0016] The electric front-end crane with a fire extinguishing system provided by this utility model has two aspects: firstly, it uses fire extinguishing systems distributed on both sides of the vehicle frame to monitor and extinguish different vehicle electrical systems at specific points; secondly, it uses high-rigidity spray pipes to reduce high-pressure jet resistance and avoid the problem of reduced fire extinguishing efficiency caused by jet pressure attenuation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the overall structure of an electric reach stacker.

[0019] Figure 2 yes Figure 1 Top view.

[0020] Figure 3 yes Figure 1 AA sectional view.

[0021] Figure 4 yes Figure 3 CC section view.

[0022] Figure 5 This is a schematic diagram of the first storage unit. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this utility model and does 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, it should not be construed as a limitation of this utility model.

[0024] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0025] When a component is described in the specification as being "on", "fixed" to, "connected" to, or "joined" to another component, the component may be directly located on, fixed to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.

[0026] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Therefore, a first element may be referred to as a second element without departing from the teachings of this application.

[0027] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.

[0028] Figure 1 and Figure 2 The overall structure of this electric reach stacker equipped with a fire extinguishing system is shown, including a driver's cab 20 mounted on the chassis 40, a lifting mechanism 10 integrating a boom 11 and a spreader 12 for lifting containers, and battery compartments 30 mounted on both sides of the chassis 40. Due to the vehicle's high operating power and energy consumption, the battery compartments 30 are divided into a first battery compartment 31 and a second battery compartment 32, respectively located on both sides of the chassis 40.

[0029] Figures 3 to 5 A fire suppression system installed within the vehicle frame 40 was demonstrated. The front-mounted crane operates via a vehicle powertrain and a lifting drive assembly located within the vehicle frame 40. The vehicle powertrain includes a drive motor 50 located at the front of the vehicle frame 40 and a first battery compartment 31 and a second battery compartment 32 mounted on the outer side. The lifting drive assembly includes a hydraulic motor 13 and an inverter 15 located in the middle of the vehicle frame 40. The front of the hydraulic motor 13 is connected to a hydraulic pipe 14 and a power harness 16. By installing a fire suppression system inside the vehicle frame 40, fires can be extinguished immediately in the event of a fire in the drive motor 50, hydraulic motor 13, first battery compartment 31, or second battery compartment 32.

[0030] Specifically, the fire extinguishing system consists of a storage tank and a spray module. The storage tank contains a pressurized container filled with extinguishing medium for fire suppression. Each storage tank is connected to at least one spray module and sprays the extinguishing medium onto the aforementioned electrical mechanism. The vehicle frame 40 has a first side plate 41 and a second side plate 42 facing each other. The first storage tank 101 is arranged on the inner side of the first side plate 41, and a first battery compartment 31 is hung on its outer side. The second storage tank 102 is arranged on the inner side of the second side plate 42, and a second battery compartment 32 is hung on its outer side. The first spray pipe 103 is also arranged along the inner side of the first side plate 41 by several fixing clips 109. One end of the pipe is connected to the first storage tank 101, and the other end is provided with a nozzle 107 and extends to the side of the drive motor 50, thereby guiding the extinguishing medium in the first storage tank 101 to the drive motor 50 for spraying. After the second spray pipe 104 is connected to the other end of the first storage unit 101, it passes through the first side plate 41 to the first battery compartment 31. A nozzle 107 is also provided at the end of the second spray pipe 104 away from the first storage unit 101. The second storage unit 102 is extinguished by the third spray pipe 105 pointing towards the inverter 15 and the power harness 16, and by the fourth spray pipe 106 passing over the second side plate 42 and pointing towards the second battery compartment 32.

[0031] In some embodiments, the extinguishing medium contained in the reservoir is perfluorohexanone.

[0032] In some embodiments, the first spray pipe 103, the second spray pipe 104, the third spray pipe 105 and the fourth spray pipe 106 are all made of stainless steel 316, and the minimum spacing of the fixing clips 109 used to fix the spray pipes is 380mm. This arrangement structure maintains the rigidity of the pipeline while preventing the spray pressure from decreasing due to pipeline vibration when the high-pressure extinguishing medium passes through the pipeline.

[0033] The first reservoir 101 is specifically fixed to the first side plate 41 by a fixed bracket 108. A sealing solenoid valve 102a is provided at both ends of the first reservoir 101. The solenoid valve 102a opens according to the command only when the fire extinguishing system receives a spray signal, and the extinguishing medium is sprayed onto the electrical components through the first spray pipe 103 and / or the second spray pipe 104. The second reservoir 102 has the same overall structure as the first reservoir 102, and therefore will not be described further.

Claims

1. An electric-powered reach stacker with a fire extinguishing system, comprising a hoisting mechanism arranged on a frame body and a hoisting drive assembly and a vehicle power assembly arranged in the frame body, the hoisting drive assembly and the vehicle power assembly being electrically driven structures, characterized in that, It also includes a fire extinguishing system, which includes at least one reservoir fixed to the vehicle frame and a sprinkler module connected to at least one end of the reservoir. The spray module includes a spray pipe connected at one end to the reservoir and a nozzle disposed at the other end of the spray pipe toward the vehicle powertrain and / or hoisting drive assembly. The spray pipe is fixed to the vehicle frame by several fixing clips, and the spacing between the fixing clips is 380mm.

2. The electric reach stacker with fire extinguishing system as claimed in claim 1, wherein, The vehicle powertrain includes a drive motor located at the front end of the vehicle frame and a first battery compartment and a second battery compartment mounted on the outside of the vehicle frame. The storage unit includes a first storage unit and a second storage unit fixed to the side plate of the vehicle frame. The first storage unit is connected to the front drive motor through a first spray pipe and to the first battery compartment through a second spray pipe. The second storage unit is connected to the hoisting drive assembly in the middle through a third spray pipe and to the second battery compartment through a fourth spray pipe.

3. The electric reach stacker with fire extinguishing system as claimed in claim 2, wherein, The side panel includes a first side panel and a second side panel that are positioned opposite each other on both sides of the vehicle frame. The first reservoir, the first spray pipe and the second spray pipe are fixed to the inner side of the first side panel, and the second reservoir, the third spray pipe and the fourth spray pipe are fixed to the inner side of the second side panel.

4. The electric reach stacker with fire extinguishing system as claimed in claim 3, wherein, The first battery compartment is fixed to the outside of the first side panel, and the second battery compartment is fixed to the outside of the second side panel.

5. The electric reach stacker with fire extinguishing system according to any one of claims 1 to 4, characterized in that, The storage device includes a tank and a control valve disposed between the tank and the spray pipe, and the tank contains fire extinguishing medium.

6. The electric reach stacker with fire extinguishing system as claimed in claim 5, wherein, The extinguishing agent is perfluorohexanone.

7. The electric reach stacker with fire extinguishing system as claimed in claim 5, wherein, The spray pipe is made of stainless steel.

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