A low-temperature liquid transport vehicle with an electronic handbrake chassis

Abstract

This utility model discloses an anti-slip device for a cryogenic liquid transport vehicle using an electronic handbrake chassis. The device includes a limit switch mounting bracket, a swing arm limit switch, a cable, and a fixing device. The limit switch mounting bracket is installed on the door stop of the transport vehicle's valve box, and the swing arm limit switch is mounted on the limit switch mounting bracket. The cable connects the swing arm limit switch and the vehicle body controller. The fixing device secures the cable to the transport vehicle. In this utility model, by installing a swing arm limit switch on the door stop wall of the transport vehicle's valve box, the switch generates an open or closed signal when the valve box door is opened and closed. This signal is transmitted to the vehicle body controller via a cable. The vehicle body controller determines the valve box's open / closed state based on this signal, and thus decides whether the electronic handbrake needs to be activated.

Description

Technical Field

[0001] This utility model relates to the field of transport vehicle technology, and in particular to an anti-slip device for a cryogenic liquid transport vehicle using an electronic handbrake chassis. Background Technology

[0002] Cryogenic liquid transport vehicles are specifically designed for transporting cryogenic liquid substances, primarily liquid oxygen, liquid nitrogen, liquid argon, and liquefied natural gas (LNG). Their core features include ultra-low temperature storage and highly efficient insulation design. Currently, if a transport vehicle is started and the valve box door is left open after unloading liquids, an accident could occur if the door opens during operation. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide an anti-slip device for a cryogenic liquid transport vehicle with an electronic handbrake chassis.

[0004] The technical solution of this utility model is as follows: an anti-slip device for a cryogenic liquid transport vehicle using an electronic handbrake chassis, comprising a limit switch mounting bracket, a swing arm limit switch, a cable, and a fixing device. The limit switch mounting bracket is installed on the door stop of the valve box of the transport vehicle, the swing arm limit switch is installed on the limit switch mounting bracket, the cable connects the swing arm limit switch and the vehicle body controller, and the fixing device is used to fix the cable to the transport vehicle.

[0005] Preferably, the length of the swing arm of the swing arm limit switch extending out of the valve box door stop of the transport vehicle is between 7.5mm and 8.5mm.

[0006] Preferably, the limit switch mounting bracket is installed at a 65° angle to the valve box door stop.

[0007] Preferably, the fixing device includes a protective sleeve, which is mounted on the transport vehicle, and the protective sleeve has a slot.

[0008] Preferably, the protective sleeve has ear plates on both sides, and the ear plates have several through holes.

[0009] The beneficial effects of this utility model are as follows: by installing a rotary arm limit switch on the door wall of the valve box of the transport vehicle, when the valve box door is opened and closed, the rotary arm limit switch generates an open or closed switching quantity respectively. This signal is connected to the body controller through a cable. The body controller determines the opening and closing status of the valve box based on the signal, and then decides whether the electronic handbrake needs to be activated. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the preferred embodiment of the present invention installed on a transport vehicle;

[0011] Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle;

[0012] Figure 3 This is a front view of the protective sleeve in a preferred embodiment of this utility model;

[0013] Figure 4 This is a side view of the protective sleeve in a preferred embodiment of the present invention.

[0014] Reference numerals: 10 for limit switch mounting bracket, 2 for rotary arm limit switch, 3 for cable, 4 for protective sleeve, and 401 for ear plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1 to 4 An anti-slip device for a cryogenic liquid transport vehicle with an electronic handbrake chassis includes a limit switch mounting bracket 10, a swing arm limit switch 2, a cable 3, and a fixing device. The limit switch mounting bracket 10 is installed on the door stop of the valve box of the transport vehicle. The swing arm limit switch 2 is installed on the limit switch mounting bracket 10. The cable 3 connects the swing arm limit switch 2 and the vehicle body controller. The fixing device is used to fix the cable 3 to the transport vehicle. In this invention, when the transport vehicle's speed is 0 and the rear door is open, the transport vehicle's body controller receives the opening signal from the swing arm limit switch 2 via cable 3. The transport vehicle's body controller sends a command to the electronic parking brake system (EPB) to activate the handbrake, preventing the electronic handbrake from disengaging and preventing the transport vehicle from rolling away or suddenly moving due to accidental operation. This also prevents the transport vehicle from moving when the valve box is not closed, and allows the driver to be aware that the valve box is not closed. By installing a swing arm limit switch on the door retaining wall of the transport vehicle's valve box, the swing arm limit switch 2 generates an open or closed switching signal when the valve box door is opened and closed. This signal is connected to the body controller via cable. The body controller determines the open / closed state of the valve box based on this signal, and then decides whether the electronic handbrake needs to be activated. When the valve box is not closed, the electronic handbrake is not disengaged, preventing the vehicle from moving and serving as a reminder. Specifically, the transport vehicle has its own body controller and electronic parking brake system (EPB), which are existing technologies and will not be described further here.

[0017] As a preferred embodiment of this utility model, it may also have the following additional technical features:

[0018] In this embodiment, the length of the rotating arm of the rotating arm limit switch 2 extending beyond the valve box door stop of the transport vehicle is between 7.5mm and 8.5mm, so that the rotating arm on the rotating arm limit switch 2 can be driven to move after the door is closed.

[0019] In this embodiment, the limit switch mounting bracket 10 is installed at a 65° angle to the valve box door stop.

[0020] In this embodiment, the fixing device includes a protective sleeve 4, which is installed on the transport vehicle. The protective sleeve 4 has a slot, and the cable 3 is placed in the slot of the protective sleeve 4. The protective sleeve 4 is fixed to the inner wall of the transport vehicle, which serves to protect the cable 3 and prevent it from being scratched or damaged by objects.

[0021] In this embodiment, the protective sleeve 4 is provided with ear plates 401 on both sides. The ear plates 401 are provided with several through holes. After the cable 3 is placed in the slot of the protective sleeve 4, the bolt passes through the through holes of the ear plates 401 and connects to the inner wall of the transport vehicle, thereby fixing the cable 3 to the inner wall of the transport vehicle.

[0022] It should be noted that 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing runaway of a cryogenic liquid transport vehicle using an electronic handbrake chassis, characterized in that, The device includes a limit switch mounting bracket (10), a swing arm limit switch (2), a cable (3), and a fixing device. The limit switch mounting bracket (10) is installed on the door stop of the valve box of the transport vehicle. The swing arm limit switch (2) is installed on the limit switch mounting bracket (10). The cable (3) connects the swing arm limit switch (2) and the vehicle body controller. The fixing device is used to fix the cable (3) to the transport vehicle.

2. The anti-slip device for a cryogenic liquid transport vehicle with an electronic handbrake chassis according to claim 1, characterized in that: The length of the arm of the swing arm limit switch (2) extending out of the valve box door stop of the transport vehicle is between 7.5mm and 8.5mm.

3. The anti-slip device for a cryogenic liquid transport vehicle with an electronic handbrake chassis according to claim 1, characterized in that: The limit switch mounting bracket (10) is installed at a 65° angle to the valve box door stop.

4. The anti-slip device for a cryogenic liquid transport vehicle with an electronic handbrake chassis according to claim 1, characterized in that: The fixing device includes a protective sleeve (4), which is installed on the transport vehicle, and the protective sleeve (4) has a slot.

5. The anti-slip device for a cryogenic liquid transport vehicle with an electronic handbrake chassis according to claim 4, characterized in that: The protective sleeve (4) has ear plates (401) on both sides, and the ear plates (401) have several through holes.

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