Tail protection device of hazardous chemical substance liquid transport vehicle

The resistor box and resistor plate driven by the hydraulic cylinder are automatically released in the driving state, which solves the problem that existing devices cannot effectively protect in rear-end accidents, and achieves flexible protective effects and normal use of the rear door of the car.

CN223279053UActive Publication Date: 2025-08-29DONGGUAN ZHIYUAN LOGISTICS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422709448.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-08-29
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

The rear protection device of the existing hazardous chemical liquid transport vehicle cannot effectively prevent the small car from rushing into the bottom of the transport vehicle in the rear-end collision, resulting in driver injury and chemical leakage. The existing structure is simple and hinders the normal opening of the rear door of the car in a non-driving state.

Method used

The resistor box and resistor plate driven by hydraulic cylinder are automatically released to the rear of the vehicle in a driving state through mechanical transmission, preventing the small car from rushing in and collision with the rear door of the car. The synchronous driving component and servo motor control the transmission worm gear and worm gear to achieve synchronous action of the resistor box and resistor plate.

Benefits of technology

Effectively reduce the risk of death and chemical leakage of small and medium-sized car drivers in rear-end collision accidents. At the same time, the block box and blocking plate are stored at the bottom of the car in a non-driving state, which does not hinder the normal opening of the rear door of the car and is flexible to use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223279053U_ABST
    Figure CN223279053U_ABST
Patent Text Reader

Abstract

The utility model discloses a tail protection device of a hazardous chemical liquid transport vehicle, and belongs to the technical field of vehicle protection equipment. The tail protection device of the hazardous chemical substance liquid transport vehicle comprises two hydraulic cylinders, the output ends of the two hydraulic cylinders are fixedly connected with mounting plates, a blocking box is rotationally connected between the two mounting plates, a blocking plate slidably penetrates through the inner wall of one side of the blocking box, and a transmission plate is fixedly connected to the outer surface of one side of the blocking plate. When the transport vehicle enters a running state, the vertical blocking box can block a gap between the transport carriage and the ground, the blocking plate can block a part of a rear door of the transport carriage, the blocking box can block a small car from rushing into the bottom of the transport vehicle, the death risk of a driver of the small car is reduced, and meanwhile the blocking plate can block the small car from colliding with the rear door of the carriage. Leakage of dangerous chemicals due to the fact that the compartment rear door is crashed is prevented, and the accident risk is further reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle protection equipment, and more specifically, to a rear protection device for a hazardous chemical liquid transport vehicle. Background Art

[0002] Hazardous liquid transportation is a highly specialized logistics service that involves the use of specialized vehicles and strict operating procedures to ensure the safe and stable transportation of various flammable, explosive, toxic or corrosive liquids, avoiding potential harm to people, the environment and property.

[0003] In the hazardous liquid chemical transportation industry, the safety of transport vehicles has always been a concern. Typical transport vehicles use fixed guardrails at the rear to protect parking spaces. However, this simple structure can be dangerous, especially when a small car rear-ends a transport vehicle during transportation. The car could crash under the vehicle, causing serious injury or even death to the driver. Furthermore, rear-end collisions can damage the rear door of the transport vehicle, leading to the release of hazardous chemicals and posing a serious threat to the environment and personnel safety. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a rear protection device for a hazardous liquid chemical transport vehicle. When in driving state, the device will automatically release the resistance box and resistance plate stored at the bottom of the vehicle to the rear of the vehicle through mechanical transmission. The resistance box will prevent small cars from rushing under the transport vehicle, reducing the risk of death for the driver of the small car. At the same time, the resistance plate will block the small car from colliding with the rear door of the vehicle, preventing the rear door from being damaged, resulting in leakage of hazardous chemicals, and further reducing the risk of accidents.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A rear protection device for a hazardous chemical liquid transport vehicle, comprising:

[0009] Two hydraulic cylinders, the output ends of the two hydraulic cylinders are fixedly connected to mounting plates, a resistance box is rotatably connected between the two mounting plates, a resistance plate is slidably penetrated through the inner wall of one side of the resistance box, a transmission plate is fixedly connected to the outer surface of one side of the resistance plate, two transmission threaded rods are rotatably connected between the inner walls of both sides of the resistance box, and the transmission plate is threadedly connected to the two transmission threaded rods;

[0010] a synchronous drive assembly, wherein the synchronous drive assembly is disposed on the resistance box; and

[0011] A side connection box, the side connection box is fixedly connected to the outer surface of one side of one of the mounting plates, a transmission worm gear is rotatably connected between the front and rear inner walls of the side connection box, the transmission worm gear is fixedly connected to the resistance box through a rotating shaft rod, a transmission worm is rotatably connected between the inner walls on both sides of the side connection box, and the transmission worm is meshed with the transmission worm gear.

[0012] As a preferred solution of the present invention, the synchronous drive assembly includes a protection box and two synchronous wheels. The protection box is fixedly connected to the outer surface of one side of the resistance box. The two synchronous wheels are rotatably connected between the resistance box and the protection box, and the two synchronous wheels are fixedly connected to the two transmission threaded rods respectively.

[0013] As a preferred solution of the present invention, the synchronous drive assembly further comprises a drive motor, which is fixedly mounted on an outer surface of one side of the resistance box, and an output end of the drive motor is fixedly connected to one of the transmission threaded rods.

[0014] As a preferred solution of the present invention, a servo motor is fixedly mounted on an outer surface of one side of the side connection box, and an output end of the servo motor is fixedly connected to a transmission worm.

[0015] As a preferred solution of the present invention, two groups of limit rods are fixedly connected between the inner walls on both sides of the resistance box, each group of the limit rods is provided with two, and the transmission plate is slidably sleeved on the four limit rods.

[0016] As a preferred solution of the present invention, each group of two limiting rods are located on both sides of the corresponding transmission threaded rod.

[0017] 3. Beneficial effects

[0018] Compared with the existing technology, the present invention provides a rear protection device for hazardous liquid transport vehicles, which has the following beneficial effects:

[0019] (1) The rear protection device of the hazardous liquid chemical transport vehicle, when the transport vehicle enters the driving state, two hydraulic cylinders will drive the two mounting plates to move toward the outside of the vehicle compartment, and drive the resistance box to move to the rear side of the vehicle through the two mounting plates, and then the transmission worm will be controlled by the servo motor to rotate, driving the transmission worm wheel to rotate ninety degrees, and driving the resistance box to rotate ninety degrees through the shaft rod. At this time, the drive motor is controlled to start, driving one of the transmission threaded rods to rotate, and driving the two transmission threaded rods to rotate synchronously through the two protection boxes, so that the transmission plate drives the resistance plate to rise, and the vertical resistance box will block the gap between the transport compartment and the ground, and the resistance plate will block part of the rear door of the transport compartment, so that when the transport vehicle is rear-ended by a small car, the resistance box will prevent the small car from rushing into the bottom of the transport vehicle, reducing the risk of death of the small car driver, and at the same time the resistance plate will block the small car from colliding with the rear door of the compartment, preventing the rear door of the compartment from being damaged, resulting in leakage of hazardous chemicals, and further reducing the risk of accidents.

[0020] (2) The rear protection device of the hazardous liquid transport vehicle uses an automated mechanical transmission method so that the resistance box and the resistance plate are released for protection only when the vehicle is in motion. When the vehicle is not in motion, the resistance box and the resistance plate will be stored at the bottom of the vehicle and will not hinder the normal opening of the rear door of the vehicle. The vehicle is very flexible in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 This is a cross-sectional view of the resistance box of the present invention;

[0023] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a cross-sectional view of the side connection box of the present utility model;

[0025] Figure 5 This is a cross-sectional view of the protection box of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1. Hydraulic cylinder; 2. Mounting plate; 3. Resistance box; 4. Resistance plate; 5. Protection box; 6. Drive motor; 7. Side connection box; 8. Servo motor; 9. Transmission plate; 10. Transmission threaded rod; 11. Limit rod; 12. Transmission worm; 13. Transmission worm wheel. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0029] Example:

[0030] See also Figure 1-Figure 5 , a rear protection device for a hazardous liquid transport vehicle, comprising:

[0031] Two hydraulic cylinders 1, the output ends of the two hydraulic cylinders 1 are fixedly connected to the mounting plates 2, a resistance box 3 is rotatably connected between the two mounting plates 2, a resistance plate 4 is slidably penetrated through the inner wall of one side of the resistance box 3, and a transmission plate 9 is fixedly connected to the outer surface of one side of the resistance plate 4. Two transmission threaded rods 10 are rotatably connected between the inner walls of the two sides of the resistance box 3, and the transmission plate 9 is threadedly connected to the two transmission threaded rods 10;

[0032] A synchronous drive assembly, which is disposed on the resistance box 3; and

[0033] The side connection box 7 is fixedly connected to the outer surface of one side of one of the mounting plates 2. A transmission worm gear 13 is rotatably connected between the front and rear inner walls of the side connection box 7. The transmission worm gear 13 is fixedly connected to the resistance box 3 through a rotating shaft. A transmission worm 12 is rotatably connected between the inner walls on both sides of the side connection box 7. The transmission worm 12 is meshed with the transmission worm gear 13.

[0034] In a specific embodiment of the present invention, two hydraulic cylinders 1 are installed at the bottom of the rear end of the transport vehicle. When the transport vehicle is not in a driving state, the resistance box 3 and the resistance plate 4 are in a horizontal state and are located at the bottom of the transport vehicle at the same time. When the transport vehicle enters a driving state, the two hydraulic cylinders 1 will drive the two mounting plates 2 to move toward the outside of the vehicle, and drive the resistance box 3 to move to the rear side of the vehicle through the two mounting plates 2. Then the transmission worm 12 will be controlled to rotate, driving the transmission worm wheel 13 to rotate ninety degrees, and driving the resistance box 3 to rotate ninety degrees through the rotating shaft rod. At this time, the two transmission threaded rods 10 will rotate synchronously under the control of the synchronous drive assembly, so that the transmission plate 9 drives the resistance plate 4 to rise vertically. The resistance box 3 in the state will block the gap between the transport vehicle and the ground, and the resistance plate 4 will block a part of the rear door of the transport vehicle, so that when the transport vehicle is rear-ended by a small car, the resistance box 3 will prevent the small car from rushing under the transport vehicle, reducing the risk of death of the small car driver. At the same time, the resistance plate 4 will block the small car from colliding with the rear door of the vehicle, preventing the rear door of the vehicle from being damaged and causing leakage of dangerous chemicals. At the same time, through the automated mechanical transmission method, the resistance box 3 and the resistance plate 4 are only released for protection in the driving state. In the non-driving state, the resistance box 3 and the resistance plate 4 will be stored at the bottom of the vehicle, which will not hinder the normal opening of the rear door of the vehicle, and is very flexible in actual use.

[0035] Specifically, the synchronous drive assembly includes a protection box 5 and two synchronous wheels. The protection box 5 is fixedly connected to the outer surface of one side of the resistance box 3. The two synchronous wheels are rotatably connected between the resistance box 3 and the protection box 5, and the two synchronous wheels are respectively fixedly connected to the two transmission threaded rods 10.

[0036] In this embodiment, the two synchronous wheels are connected by a synchronous belt transmission, so that when one of the transmission threaded rods 10 rotates, the two protection boxes 5 will keep rotating synchronously, thereby driving the other transmission threaded rod 10 to rotate synchronously.

[0037] Specifically, the synchronous drive assembly further includes a drive motor 6 , which is fixedly mounted on an outer surface of one side of the resistance box 3 , and an output end of the drive motor 6 is fixedly connected to one of the transmission threaded rods 10 .

[0038] In this embodiment, by controlling the driving motor 6 to start, the corresponding transmission threaded rod 10 can be driven to rotate.

[0039] Specifically, a servo motor 8 is fixedly mounted on an outer surface of one side of the side connection box 7 , and an output end of the servo motor 8 is fixedly connected to the transmission worm 12 .

[0040] In this embodiment, the servo motor 8 is controlled to start, so as to drive the transmission worm 12 to rotate.

[0041] Specifically, two groups of limiting rods 11 are fixedly connected between the inner walls on both sides of the resistance box 3 , each group of limiting rods 11 is provided with two, and the transmission plate 9 is slidably sleeved on the four limiting rods 11 .

[0042] In this embodiment, the four limiting rods 11 enable the transmission plate 9 to remain stable during movement.

[0043] Specifically, each group of two limiting rods 11 are located on both sides of the corresponding transmission threaded rod 10 .

[0044] In this embodiment, the four limiting rods 11 are distributed in this way in order to more reasonably utilize the installation space. At the same time, such a distribution makes the overall structure more stable.

[0045] Working principle: When the transport vehicle enters the driving state, the two hydraulic cylinders 1 will drive the two mounting plates 2 to move toward the outside of the vehicle, and drive the resistance box 3 to move to the rear side of the vehicle through the two mounting plates 2. Then the transmission worm 12 will be controlled by the servo motor 8 to rotate, driving the transmission worm wheel 13 to rotate ninety degrees, and driving the resistance box 3 to rotate ninety degrees through the rotating shaft rod. At this time, the drive motor 6 is controlled to start, driving one of the transmission threaded rods 10 to rotate, and driving the two transmission threaded rods 10 to rotate synchronously through the two protection boxes 5, so that the transmission plate 9 drives the resistance plate 4 to rise, and the vertical resistance box 3 will block the gap between the transport vehicle and the ground, and the resistance plate 4 will block part of the rear door of the transport vehicle, so that when the transport vehicle is rear-ended by a small car, the resistance box 3 will prevent the small car from rushing into the transport vehicle. At the same time, the baffle 4 will block the collision of the small car with the rear door of the car, preventing the rear door of the car from being damaged, causing the leakage of dangerous chemicals, and further reducing the risk of accidents. At the same time, through the automated mechanical transmission method, the baffle box 3 and the baffle 4 are only released for protection in the driving state. In the non-driving state, the baffle box 3 and the baffle 4 will be stored at the bottom of the car, and will not hinder the normal opening of the rear door of the car. It is very flexible in actual use. The control method of the present invention is to control the switch by manually starting and closing it. The wiring diagram of the power element and the provision of power supply are common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rear protection device for a hazardous liquid transport vehicle, characterized in that: include: Two hydraulic cylinders (1), the output ends of the two hydraulic cylinders (1) are fixedly connected to a mounting plate (2), a resistance box (3) is rotatably connected between the two mounting plates (2), a resistance plate (4) is slidably penetrated through the inner wall of one side of the resistance box (3), a transmission plate (9) is fixedly connected to the outer surface of one side of the resistance plate (4), two transmission threaded rods (10) are rotatably connected between the inner walls of both sides of the resistance box (3), and the transmission plate (9) is threadedly connected to the two transmission threaded rods (10); A synchronous drive assembly, the synchronous drive assembly being arranged on the resistance box (3); and A side connection box (7) is fixedly connected to an outer surface of one side of one of the mounting plates (2); a transmission worm gear (13) is rotatably connected between the front and rear inner walls of the side connection box (7); the transmission worm gear (13) is fixedly connected to the resistance box (3) via a rotating shaft; a transmission worm (12) is rotatably connected between the inner walls on both sides of the side connection box (7); the transmission worm gear (12) is meshed with the transmission worm gear (13).

2. The rear protection device for a hazardous liquid transport vehicle according to claim 1 is characterized in that: The synchronous drive assembly comprises a protection box (5) and two synchronous wheels, wherein the protection box (5) is fixedly connected to an outer surface of one side of the resistance box (3), and the two synchronous wheels are both rotatably connected between the resistance box (3) and the protection box (5), and the two synchronous wheels are respectively fixedly connected to two transmission threaded rods (10).

3. The rear protection device for a hazardous liquid transport vehicle according to claim 1 is characterized in that: The synchronous drive assembly further comprises a drive motor (6), the drive motor (6) being fixedly mounted on an outer surface of one side of the resistance box (3), and the output end of the drive motor (6) being fixedly connected to one of the transmission threaded rods (10).

4. The rear protection device for a hazardous liquid chemical transport vehicle according to claim 1, characterized in that: A servo motor (8) is fixedly mounted on one outer surface of the side connection box (7), and an output end of the servo motor (8) is fixedly connected to a transmission worm (12).

5. The rear protection device for a hazardous liquid transport vehicle according to claim 1 is characterized in that: Two groups of limiting rods (11) are fixedly connected between the inner walls on both sides of the resistance box (3), and each group of limiting rods (11) is provided with two, and the transmission plate (9) is slidably sleeved on the four limiting rods (11).

6. The rear protection device for a hazardous liquid chemical transport vehicle according to claim 5, characterized in that: Each group of two limiting rods (11) are located on both sides of the corresponding transmission threaded rod (10).