Rear protection device of hazardous chemical substance vehicle
By installing anti-collision and shear sealing mechanisms at the rear of cryogenic liquid vehicles, the problem of cryogenic medium leakage is solved, achieving higher protection and safety, and reducing medium leakage and structural damage during collisions.
Patent Information
- Application Number
- CN202520507316.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In the event of a rear-end collision, the control box piping of existing cryogenic liquid vehicles is easily damaged, leading to leakage of cryogenic media and posing risks of secondary injury and environmental pollution.
A rear protection device for a hazardous chemical vehicle was designed, including an anti-collision mechanism and a shear sealing mechanism. The anti-collision mechanism consists of a main walking beam, a vertical longitudinal beam reinforcement box, and rubber anti-collision blocks. The shear sealing mechanism automatically cuts off the leakage path upon collision through a sealing seat and a pipeline sealing flap.
It improves rear-end collision protection, reduces pipeline damage and cryogenic medium leakage, enhances overall structural strength, and improves transportation and driving safety.
Smart Images
Figure CN223821568U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to low temperature liquid vehicle technical field especially relates to a rear protection device of dangerous chemical vehicle. BACKGROUND
[0002] The low temperature liquid vehicle anti-collision structure is located at the rear end of the vehicle and is used for protecting the low temperature tank body and pipeline when the rear collision of the vehicle occurs.
[0003] The low temperature vehicle pipeline on the market is located in the operation box at the rear of the vehicle, and the operation box is flush with the outer end surface of the rear protection device of the vehicle. When the collision occurs, the collision deformation of the rear protection device will directly cause the deformation and damage of the rear operation box, so that the pipeline in the operation box is exposed and is likely to be damaged, thereby causing the leakage of low temperature medium and causing large-scale secondary personal injury and environmental pollution. In view of this, the rear protection device of the dangerous chemical vehicle is provided. UTILITARY MODEL
[0004] In view of the deficiencies of the prior art, the rear protection device of the dangerous chemical vehicle is provided, which solves the technical problem that the pipeline of the low temperature vehicle is damaged after the rear collision, the low temperature medium leaks and effective rescue cannot be implemented, and achieves the rear collision protection capability, enhances the overall structural strength, and also prevents the leakage of low temperature medium, thereby improving the transportation safety of dangerous chemicals.
[0005] To solve the above technical problems, the utility model provides the following technical scheme: a rear protection device of dangerous chemical vehicle, including the tank body installed on the vehicle and the operation box connected with the tank body, the rear of the vehicle is provided with the anti-collision mechanism for protecting the rear, the operation box is internally provided with the shear sealing mechanism for preventing leakage at the pipeline liquid inlet and outlet.
[0006] The anti-collision mechanism includes a walking main beam installed on the vehicle and connected with the operation box, a vertical longitudinal beam reinforcing box connected with the operation box is installed on the inner side of the walking main beam, a rear protection longitudinal beam main body is installed at one end of the walking main beam, an extension platform is installed at one end of the rear protection longitudinal beam main body, a rubber anti-collision block is movably installed on the extension platform, a plurality of rear energy absorbing boxes one are installed on the extension platform.
[0007] A high brake light is installed on the tank body, a plurality of rear energy absorbing boxes two are installed on the rear protection longitudinal beam main body, and a reinforcing steel bar connected with the rear protection longitudinal beam main body is installed on the extension platform.
[0008] Preferably, the shearing sealing mechanism comprises a sealing seat connected to the inner pipeline root of the operation box, a shearing groove is formed in the sealing seat, a resisting piece is movably arranged in the sealing seat, a spring is arranged at one end of the resisting piece and connected to the inner sealing seat, and a pipeline sealing piece is movably arranged at the other end of the inner sealing seat and abuts against the resisting piece.
[0009] Preferably, a plurality of anti-collision pads are arranged on the rear part and the lower part of the extension platform of the operation box, and the outer walls of the walking main beam and the rear protection longitudinal beam are coated with reinforced paint.
[0010] Preferably, the pipeline inlet and outlet in the operation box are connected in a cut-off mode.
[0011] Preferably, the rubber anti-collision block is fixed to the extension platform by bolts.
[0012] Preferably, the rear energy absorption box one and the rear energy absorption box two are symmetrically arranged at the rear part and the lower part of the extension platform of the operation box.
[0013] By means of the above technical scheme, the rear protection device of the hazardous chemical vehicle has at least the following beneficial effects:
[0014] 1. The anti-collision mechanism is arranged between the rear operation box of the low-temperature vehicle and the existing rear protection device, so that the rear collision capacity is improved, the distance between vehicles can be monitored in real time, the driving personnel can be fed back in time, the avoidance treatment can be made in advance, and the safety performance of the vehicle is improved.
[0015] 2. The shearing sealing mechanism is arranged, so that the leakage path can be automatically cut off quickly in the process of vehicle collision, the leakage of the low-temperature medium is effectively prevented, secondary injury and environmental pollution are reduced, the high brake light is arranged, the blind area is reduced, the brake distance of the rear vehicle is increased, the anti-collision risk is reduced, and the safety performance of the low-temperature vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate certain
[0017] embodiments of the application and are used to explain the application, but do not limit the application in any way.
[0018] In the drawings:
[0019] Fig. 1 is a schematic view of the appearance structure of the utility model;
[0020] Fig. 2 is a schematic view of the side plane structure of the utility model;
[0021] Figure 3 is a partial structure of the anti-collision mechanism of the utility model planar view schematic diagram from below;
[0022] Figure 4 is a vehicle rear structure plane schematic diagram of the utility model;
[0023] Figure 5 is a pipe internal structure schematic diagram of the utility model.
[0024] In the figure: 1, vehicle; 2, tank body; 3, operation box;
[0025] 4, anti-collision mechanism; 41, walking main beam; 42, vertical longitudinal beam reinforcing box; 43, rear protection longitudinal beam main body; 44, extension platform; 45, rubber anti-collision block; 46, rear energy absorption box one; 47, high brake light; 48, rear energy absorption box two; 49, reinforcing steel bar;
[0026] 5, shear sealing mechanism; 51, sealing seat; 52, shear groove; 53, abutment; 54, spring; 55, pipe sealing petal. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0028] Embodiment one
[0029] The pipe is damaged after the low-temperature vehicle rear collision, and the low-temperature medium leakage cannot be implemented effectively to rescue the problem, the embodiment provides a rear protection device of hazardous chemical vehicle, please refer to Figure 1-5, can improve the rear collision protection ability, enhances the overall structural strength, and also can prevent low-temperature medium leakage, thereby improving the transportation safety of hazardous chemicals. The rear protection device of the hazardous chemical vehicle, package
[0030] The device comprises a tank 2 installed on a vehicle 1 and an operation box 3 connected with the tank 2, a plurality of sets of anti-collision pads are installed on both sides of the operation box 3, the anti-collision effect of the device is improved, a cut-off type connection is adopted at the liquid inlet and outlet of the pipeline in the operation box 3, so that the leakage path of the pipeline can be cut off in the first time during the collision process, the leakage of low-temperature medium is prevented, an anti-collision mechanism 4 is arranged at the rear of the vehicle 1 to protect the rear of the vehicle 1, and a shear sealing mechanism 5 is arranged at the liquid inlet and outlet of the pipeline in the operation box 3 to prevent leakage. The anti-collision mechanism 4 can effectively buffer the rear impact force, reduce the direct damage of the operation box 3 and the pipeline, improve the anti-collision strength, reduce the damage to the pipeline, the shear sealing mechanism 5 can automatically cut off the leakage path of the pipeline to the outside, and the leakage of low-temperature medium is avoided.
[0031] The rear operation box 3 of the existing low-temperature vehicle is in a sunken structure, the outer edge of the operation box 3 is flush with the outer edge of the rear protection device, when rear collision occurs, the operation box 3 bears the rear collision together with the rear protection device, at this time, the pipeline in the operation box 3 is easily damaged, in order to solve the above problems, the anti-collision mechanism 4 comprises a walking main beam 41 installed on the vehicle 1 and connected with the operation box 3, the outer walls of the walking main beam 41 and a rear protection longitudinal beam main body 43 are coated with reinforced paint to form a reinforced composite material for improving the strength of the rear anti-collision structure, a vertical longitudinal beam reinforcing box 42 connected with the operation box 3 is installed on the inner side of the walking main beam 41, the rear protection longitudinal beam main body 43 is installed at one end of the walking main beam 41, an extension platform 44 is installed at one end of the rear protection longitudinal beam main body 43, a vehicle distance detector is installed on the extension platform 44 to monitor the distance between the vehicle and the rear vehicle, improve the safety performance of the hazardous chemical vehicle, and the extension platform 44 further plays a buffering anti-collision role, a rubber anti-collision block 45 is movably installed on the extension platform 44, the rubber anti-collision block 45 is fixed to the extension platform 44 through bolts, so that the rubber anti-collision block 45 is fixed and replaced conveniently, a plurality of rear energy absorption boxes one 46 are installed on the extension platform 44, the rear energy absorption boxes one 46 and rear energy absorption boxes two 48 are symmetrically distributed at both ends of the operation box 3, so that the buffering anti-collision effect of the device is improved, the protection performance of the rear is improved, a high brake light 47 is installed on the tank 2, a plurality of rear energy absorption boxes two 48 are installed on the rear protection longitudinal beam main body 43, and a reinforcing steel bar 49 connected with the rear protection longitudinal beam main body 43 is installed on the extension platform 44. The walking main beam 41 and the rear protection longitudinal beam main body 43 can play a preliminary anti-collision role, the vertical longitudinal beam reinforcing box 42 strengthens the walking main beam 41, the rear protection longitudinal beam main body 43 and the extension platform 44 can effectively buffer the rear impact force, the rubber anti-collision block 45 can effectively reduce the direct damage of the operation box 3 and the pipeline, the rear energy absorption boxes one 46 and the rear energy absorption boxes two 48 can further improve the buffering anti-collision effect of the device, the high brake light 47 can improve the safety performance of the hazardous chemical vehicle, and the reinforcing steel bar 49 can further improve the strength of the rear anti-collision structure.
[0032] The connection between the main cross beam 41 and the rear protection longitudinal beam body 43 is firm, which is used to further absorb the energy generated by the rear collision, resist the large deformation of the rear protection device, and thus improve the protection performance of the rear of the dangerous chemical vehicle. The distance detector on the extension platform 44 is used to monitor the distance between the vehicle and the rear vehicle. When the distance reaches the set safety distance, the driver of the vehicle is fed back in time so as to observe and make corresponding avoidance treatment in advance. The rubber anti-collision block 45 is used to buffer the front impact force and improve the anti-collision performance. The rear energy absorption box one 46 and the rear energy absorption box two 48 play the role of absorbing the impact kinetic energy, so as to improve the anti-collision effect of the device. The reinforcing steel bars 49 enhance the installation firmness between the rear protection longitudinal beam body 43 and the extension platform 44, and improve the anti-collision effect. The high brake light 47 enables the driver of the rear vehicle to discover the brake action of the front vehicle earlier, so as to increase the reaction time and the brake distance, and effectively reduce the risk of rear collision.
[0033] Embodiment two
[0034] On the basis of embodiment one, as shown in FIG. 1-5, based on the problem that the existing low-temperature vehicle pipeline is damaged after rear collision, and the low-temperature medium leakage cannot be effectively rescued, but in the prior art, the pipeline in the operation box 3 is subjected to severe impact and broken after the impact, so that the medium in the tank is easy to leak, causing personnel and environmental damage. Therefore, the device is also provided with a structure for preventing the medium in the tank from leaking.
[0035] When the vehicle 1 is subjected to a serious impact, if the pipeline cannot be broken at the shear groove 52 in time, the medium in the tank 2 is easy to leak through the pipeline, causing greater personnel injury and environmental pollution. In order to solve the above problems, the shear sealing mechanism 5 includes a sealing seat 51 connected to the root of the pipeline inside the operation box 3. The sealing seat 51 is provided with a shear groove 52. The sealing seat 51 is movably installed with an abutting piece 53. One end of the abutting piece 53 is provided with a spring 54 connected to the inside of the sealing seat 51. The other end of the sealing seat 51 is movably installed with a pipeline sealing flap 55 abutting with the abutting piece 53. When the vehicle 1 is normally driven, the elasticity of the spring 54 makes the abutting piece 53 abut with the pipeline sealing flap 55. When the rear of the vehicle 1 is subjected to an impact, the kinetic energy generated by the impact force makes the pipeline break at the shear groove 52. The medium in the tank 2 leaks through the pipeline. At this time, the medium pressure in the pipeline will push the pipeline sealing flap 55 to form a seal with the sealing seat 51, automatically cutting off the leakage path of the pipeline to the outside, avoiding the leakage of low-temperature medium from the pipeline, and improving the safety performance of the whole device.
[0036]
[0037] It should be noted that, in this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A rear protection device for a hazardous chemical vehicle, comprising a tank (2) mounted on the vehicle (1) and an operation box (3) connected with the tank (2), characterized in that: The vehicle (1) rear is provided with a rear protection anti-collision mechanism (4), and the operating box (3) is provided with a leakage-proof shearing sealing mechanism (5) at the liquid inlet and outlet of the internal pipeline. The anti-collision mechanism (4) comprises a walking main beam (41) installed on the vehicle (1) and connected with the operating box (3), a vertical longitudinal beam reinforcing box (42) connected with the operating box (3) is installed on the inner side of the walking main beam (41), a rear protection longitudinal beam main body (43) is installed at one end of the walking main beam (41), an extension platform (44) is installed at one end of the rear protection longitudinal beam main body (43), a rubber anti-collision block (45) is movably installed on the extension platform (44), a plurality of rear energy absorption box one (46) are installed on the extension platform (44), a high brake light (47) is installed on the tank body (2), a plurality of rear energy absorption box two (48) are installed on the rear protection longitudinal beam main body (43), and a reinforcing steel bar (49) connected with the rear protection longitudinal beam main body (43) is installed on the extension platform (44).
2. A rear protection device for a hazardous chemical vehicle as claimed in claim 1, wherein: The shearing sealing mechanism (5) comprises a sealing seat (51) connected with the internal pipeline of the operating box (3), a shearing groove (52) is formed in the sealing seat (51), a resisting piece (53) is movably installed in the sealing seat (51), a spring (54) connected with the inside of the sealing seat (51) is installed at one end of the resisting piece (53), and a pipeline sealing flap (55) abutting against the resisting piece (53) is movably installed at the other end of the sealing seat (51).
3. The rear protection device of a hazardous chemical vehicle according to claim 1, characterized in that: The outer walls of the walking main beam (41) and the rear protection longitudinal beam main body (43) are coated with enhanced paint.
4. The rear protection device of a hazardous chemical vehicle according to claim 1, characterized in that: The liquid inlet and outlet of the internal pipeline of the operating box (3) adopts a cut-off type connection.
5. The rear protection device of a hazardous chemical vehicle according to claim 1, characterized in that: The rubber anti-collision block (45) is fixed to the extension platform (44) by bolts.
6. The rear guard device of a hazardous chemical vehicle according to claim 1, characterized in that: The rear energy absorption box one (46) and the rear energy absorption box two (48) are symmetrically distributed at the two ends of the rear and lower parts of the operating box (3).