Semi-trailer type support vehicle

Abstract

The invention relates to a semi-trailer type support vehicle, and belongs to the technical field of support vehicles. Comprising a tractor and a semitrailer chassis, the tractor is connected with the semitrailer chassis, a fixed carriage is fixedly arranged on the semitrailer chassis, the middles of the left side wall and the right side wall of the fixed vehicle are each provided with an expansion opening, and an expansion carriage is arranged in each expansion opening in a sliding mode; the expansion compartment is connected with the fixed compartment through an electric push rod; a front auxiliary supporting leg and a rear auxiliary supporting leg are rotationally arranged at the lower end of each expansion compartment, and the auxiliary supporting legs are telescopic mechanisms; the problems that an existing guarantee type shelter is small in area and poor in maneuverability are solved.

Description

Technical Field

[0001] This invention belongs to the field of support vehicle technology, specifically relating to a semi-trailer support vehicle. Background Technology

[0002] With the development of technology, outdoor logistics support work is becoming increasingly common. Mobile shelters, as widely used logistics support equipment, can provide a relatively comfortable working environment in harsh weather. However, existing mobile shelters are often small in size and have limited space for movement, preventing support personnel from working in sufficient space; furthermore, existing mobile shelters have poor mobility, making rapid relocation difficult and affecting the quality of support provided. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art and proposes a semi-trailer support vehicle; solving the problems of small area and poor mobility of current support cabins.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution.

[0005] A semi-trailer support vehicle includes a tractor and a semi-trailer chassis. The tractor and the semi-trailer chassis are connected. A fixed cargo box is fixedly installed on the semi-trailer chassis. An expansion opening is provided in the middle of the side wall on both sides of the fixed vehicle. An expansion cargo box is slidably installed inside each expansion opening. The expansion cargo box is connected to the fixed cargo box by an electric push rod. Each expansion cargo box has two auxiliary support legs at the front and two at the rear, and the auxiliary support legs are telescopic mechanisms.

[0006] Furthermore, a leveling mechanism is provided at the lower end of the semi-trailer chassis. The leveling mechanism includes four leveling push rods, with the telescopic rods of the leveling push rods set vertically downward. The cylinder bottom end of the upper side of two leveling push rods is connected to the left and right ends of the main beam on the front side of the semi-trailer chassis, respectively. The cylinder bottom end of the upper side of the other two leveling push rods is connected to the left and right ends of the main beam on the rear side of the semi-trailer chassis, respectively.

[0007] Furthermore, the extended carriage includes a first folding plate, a second folding plate, a connecting plate, a side plate, and a top plate; a horizontal square top plate is fixedly installed at the upper edge of the side plate near the inner side of the fixed carriage, and a limiting plate is fixedly installed at the end of the top plate away from the side plate; a horizontal square connecting plate is fixedly installed at the lower edge of the side plate near the inner side of the fixed carriage, a first folding plate is rotatably installed at the end of the connecting plate away from the side plate, a second folding plate is rotatably installed at the end of the first folding plate away from the connecting plate, and the end of the second folding plate away from the first folding plate is hinged to the bottom plate of the fixed carriage.

[0008] Furthermore, the roof panels of the two extended carriages are staggered vertically.

[0009] Furthermore, the electric push rods are fixedly installed inside the semi-trailer chassis, wherein one end of the telescopic rod of the two electric push rods on the left faces to the left and is connected to the front and rear ends of the side panel of the left extended compartment, respectively, and one end of the telescopic rod of the two electric push rods on the right faces to the right and is connected to the front and rear ends of the side panel of the right extended compartment, respectively.

[0010] Furthermore, an auxiliary support leg is rotatably installed at both the front and rear ends of the lower end of the connecting plate of each extended carriage. A locking mechanism is provided between the auxiliary support leg and the connecting plate. The auxiliary support leg can be locked by the locking mechanism when it is rotated to a horizontal or vertical position.

[0011] Furthermore, the front and rear ends of the extended carriage on the left are equipped with a main cabin door that can be opened and closed, and an emergency door, respectively.

[0012] Furthermore, a double rear door is installed at the rear of the fixed cargo box; and a lift-up tailgate is installed at the rear of the semi-trailer chassis.

[0013] The beneficial effects of this invention compared to the prior art are as follows: This invention provides a semi-trailer support vehicle that can provide workers with a complete meeting space and rest area in harsh weather conditions such as wind, sand, rain, and snow, and has basic support capabilities such as a certain degree of mobility and heavy load transport. The support cabin is installed on the semi-trailer chassis and is towed by a tractor unit to achieve mobility; an electric leveling mechanism keeps the entire vehicle level; when parked, the support cabin can be expanded to create a large-space office space, and an internal environmental control system ensures a comfortable environment inside the cabin; a lifting tailgate mechanism facilitates the transport of heavy loads; and a boarding platform ensures safe and convenient access for personnel.

[0014] The support cabin is designed as a nested, expandable cabin, which can increase the internal working space several times over. The semi-trailer chassis is equipped with an electric leveling mechanism to adapt to various terrain environments. The semi-trailer also features a lifting tailgate and a boarding platform for easy handling of heavy objects and personnel. Depending on the support requirements, the support cabin can be expanded to a very large area, accommodating more than 30 people simultaneously for experiments, meetings, and other work. An environmental control system is designed to address the harsh working environment of the cabin, automatically adjusting the internal environment based on factors such as temperature, humidity, and carbon dioxide concentration to meet the normal working and rest needs of the personnel. The semi-trailer chassis uses a gooseneck design and is integrated with the support cabin. The chassis employs an electric leveling mechanism to support and ensure the cabin remains level. The lifting tailgate can raise and lower heavy objects to the cabin height for easy handling. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings: Figure 1This is a side view of the vehicle when it is in motion; Figure 2 This is a side view of the support vehicle when it is in a support state; Figure 3 This is a top view of the support vehicle when it is in a support state; Figure 4 This is a rear view of the support vehicle when it is in a support state; Figure 5 This is a rear view with the two extended carriages in the retracted position; Among them, 1 is the tractor unit, 2 is the semi-trailer chassis, 3 is the fixed cargo box, 4 is the extended cargo box, 5 is the electric push rod, 6 is the auxiliary support leg, 7 is the skirt box, 8 is the leveling push rod, 9 is the boarding platform, 10 is the side panel, 11 is the top panel, 12 is the connecting plate, 13 is the first folding plate, 14 is the second folding plate, 15 is the rear double door, 16 is the lifting tailgate, 17 is the main cabin door, and 18 is the emergency door. Detailed Implementation

[0016] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0017] like Figure 1 As shown in Figure 5, the present invention provides a semi-trailer support vehicle, including a tractor 1 and a semi-trailer chassis 2. The tractor 1 and the semi-trailer chassis 2 are connected. A fixed carriage 3 is fixedly installed on the semi-trailer chassis 2. An expansion opening is provided in the middle of the side wall on both sides of the fixed vehicle. An expansion carriage 4 is slidably installed inside each expansion opening. The expansion carriage 4 is connected to the fixed carriage 3 by an electric push rod 5. Each expansion carriage 4 has two auxiliary support legs 6 rotatably installed at the lower end, and the auxiliary support legs 6 are telescopic mechanisms.

[0018] The tractor unit 1 is connected to the semi-trailer chassis 2 via a saddle, and is powered by the tractor unit 1. The semi-trailer chassis 2 is a low flatbed chassis with a gooseneck design, which saves height space for the fixed cargo box 3. Skirt boxes 7 are fixedly installed around the semi-trailer chassis 2, which can store earthmoving tools, maintenance tools, etc., providing sufficient storage space for the vehicle.

[0019] A leveling mechanism is installed at the lower end of the semi-trailer chassis 2. This mechanism includes four leveling push rods 8, with their telescopic rods pointing vertically downwards. Two of the push rods 8 have their cylinder bottom ends connected to the left and right ends of the front beam of the semi-trailer chassis 2, respectively, while the other two push rods have their cylinder bottom ends connected to the left and right ends of the rear beam of the semi-trailer chassis 2, respectively. When the support vehicle is in operation, the height of four points on the semi-trailer chassis 2 can be individually adjusted by controlling the independent extension and retraction of the four leveling push rods 8, thus ensuring that the support vehicle is level overall.

[0020] A retractable boarding platform 9 is installed on the front left side of the semi-trailer chassis 2. When the support vehicle is in motion, the boarding platform 9 is retracted to ensure that it does not interfere with the normal driving of the support vehicle; when the support vehicle is in operation, the boarding platform 9 is extended to facilitate the safe entry of personnel into the cargo compartment.

[0021] The fixed carriage 3 is a rectangular box structure with two expansion openings located at the middle of the left and right side walls along the front-back direction. The expansion openings are square in shape.

[0022] The extended carriage 4 includes a first folding plate 13, a second folding plate 14, a connecting plate 12, side plates 10, and a top plate 11. The side plate 10 is a square plate-shaped structure located in a vertical plane in the front-rear direction. A horizontal square top plate 11 is fixedly installed at the upper edge of the side plate 10 near the inner side of the fixed carriage 3. A limiting plate is fixedly installed at the end of the top plate 11 away from the side plate 10. A horizontal square connecting plate 12 is fixedly installed at the lower edge of the side plate 10 near the inner side of the fixed carriage 3. The first folding plate 13 is rotatably installed at the end of the connecting plate 12 away from the side plate 10. The second folding plate 14 is rotatably installed at the end of the first folding plate 13 away from the connecting plate 12. The end of the second folding plate 14 away from the first folding plate 13 is hinged to the floor plate of the fixed carriage 3. The top plates 11 of the two extended carriages 4 are staggered vertically.

[0023] The electric push rods 5 are fixedly installed inside the semi-trailer chassis 2. The telescopic rods of the two electric push rods 5 on the left side face to the left and are respectively connected to the front and rear ends of the side plate 10 of the left extended compartment 4. The telescopic rods of the two electric push rods 5 on the right side face to the right and are respectively connected to the front and rear ends of the side plate 10 of the right extended compartment 4.

[0024] When the extended cargo compartment 4 is in the retracted state, the two electric push rods 5 connected to it are also in the retracted state. At this time, the extended cargo compartment 4 is located inside the extension opening of the fixed cargo compartment 3, and the side panels 10 of the extended cargo compartment 4 are in contact with the semi-trailer chassis 2. The first folding plate 13 and the second folding plate 14 both rotate upward into the fixed cargo compartment 3. When it is necessary to extend the cargo compartment, the two electric push rods 5 are controlled to extend synchronously, causing the side panels 10 of the extended cargo compartment 4 to slide outward. The side panels 10 drive the top plate 11 and the connecting plate 12 to slide outward synchronously. The connecting plate 12 drives the first folding plate 13 and the second folding plate 14 to rotate downward until the first folding plate 13 and the second folding plate 14 are both rotated to a horizontal state. At this time, the electric push rods 5 reach their maximum extension length, and the extended cargo compartment 4 is fully extended. By selectively controlling the two electric push rods 5 on the left or the two electric push rods 5 on the right, the extended cargo compartment 4 on the left or the right can be independently controlled to unfold or retract, thereby adjusting the overall space of the cargo compartment.

[0025] The electric push rod 5 is equipped with an electric mode and a manual mode. When the electric mode fails, the electric push rod 5 can be extended or retracted in the manual mode, so that the extended carriage 4 can also be controlled to unfold or retract in the manual mode.

[0026] The front and rear ends of the extended carriage 4 on the left are respectively equipped with an openable main cabin door 17 and an emergency door 18.

[0027] Two partitions are arranged sequentially at the front of the interior of the fixed carriage 3, both located in front of the expansion opening. The front partition isolates an equipment room at the very front of the fixed carriage 3, which is used to house equipment such as air conditioners and fuel heaters. The area inside the fixed carriage 3 between the two partitions is a fixed office area. The area inside the fixed carriage 3 between the two expansion carriages 4 is an expandable office area.

[0028] A double rear door 15 is provided at the rear end of the fixed cargo box 3. A lifting tailgate 16 is provided at the rear end of the semi-trailer chassis 2. After opening the double rear door 15, the cargo can be stably transported by using the lifting tailgate 16.

[0029] Each extended carriage 4 has an auxiliary support leg 6 rotatably mounted at both ends of the connecting plate 12 at its lower front and rear. A locking mechanism is provided between the auxiliary support leg 6 and the connecting plate 12, allowing the auxiliary support leg 6 to be locked in either a horizontal or vertical position. When the extended carriage 4 unfolds outward, the locking mechanism is unlocked, the auxiliary support leg 6 is rotated from a horizontal to a vertical position, and then the locking mechanism is relocked. The auxiliary support leg 6 is then extended so that its lower end contacts the ground, thus providing auxiliary support for the unfolded extended carriage 4.

[0030] The fixed carriage 3 is equipped with an environmental control system, which includes air conditioning, fuel heaters, exhaust fans and other temperature control equipment. The environmental control system is mainly used to provide a comfortable microenvironment in the carriage and realize intelligent regulation of the internal environment.

[0031] The fixed carriage 3 is also equipped with an electrical system, which serves as the control center for the normal operation of all functions of the container. It mainly consists of a distribution box, UPS power supply, lighting system, switches and sockets, and various connecting cables. It can seamlessly and automatically switch between external power supply and UPS uninterruptible power supply to ensure power supply. The fixed carriage 3 also contains auxiliary equipment, including climbing footsteps, handrails, fire extinguishers and supports, maintenance tools, and civil engineering tools.

[0032] The main body of the fixed carriage 3 and the extended carriage 4 is made of composite materials that are heat-insulating, fireproof, lightweight, and highly durable.

[0033] Power / signal ports, ventilation ports, skylights, and antenna interfaces are provided on the side walls of the fixed carriage 3.

[0034] When the two extended compartments 4 are in the retracted state, they can accommodate and reliably secure any necessary protective tools, equipment, consumables, tables, chairs, etc. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A semi-trailer support vehicle, characterized in that: It includes a tractor (1) and a semi-trailer chassis (2). The tractor (1) and the semi-trailer chassis (2) are connected. A fixed carriage (3) is fixedly installed on the semi-trailer chassis (2). An expansion port is provided in the middle of the side wall on the left and right sides of the fixed vehicle. An expansion carriage (4) is slidably installed inside each expansion port. The expansion carriage (4) and the fixed carriage (3) are connected by an electric push rod (5). Each expansion carriage (4) has two auxiliary support legs (6) rotatably installed at the lower end, and the auxiliary support legs (6) are telescopic mechanisms.

2. The semi-trailer support vehicle according to claim 1, characterized in that: A leveling mechanism is provided at the lower end of the semi-trailer chassis (2). The leveling mechanism includes four leveling push rods (8). The telescopic rods of the leveling push rods (8) are set vertically downward. The cylinder bottom end of the upper side of two leveling push rods (8) is connected to the left and right ends of the front beam of the semi-trailer chassis (2), respectively. The cylinder bottom end of the upper side of the other two leveling push rods (8) is connected to the left and right ends of the rear beam of the semi-trailer chassis (2), respectively.

3. A semi-trailer support vehicle according to claim 1, characterized in that: The extended carriage (4) includes a first folding plate (13), a second folding plate (14), a connecting plate (12), a side plate (10), and a top plate (11). A horizontal square top plate (11) is fixedly installed at the upper edge of the side plate (10) near the inner side of the fixed carriage (3), and a limiting plate is fixedly installed at the end of the top plate (11) away from the side plate (10). A horizontal square connecting plate (12) is fixedly installed at the lower edge of the side plate (10) near the inner side of the fixed carriage (3), and a first folding plate (13) is rotatably installed at the end of the connecting plate (12) away from the side plate (10). A second folding plate (14) is rotatably installed at the end of the first folding plate (13) away from the connecting plate (12), and the end of the second folding plate (14) away from the first folding plate (13) is hinged to the bottom plate of the fixed carriage (3).

4. A semi-trailer support vehicle according to claim 3, characterized in that: The roof panels (11) of the two extended carriages (4) are staggered vertically.

5. A semi-trailer support vehicle according to claim 3, characterized in that: The electric push rods (5) are fixedly installed inside the semi-trailer chassis (2). The telescopic rods of the two electric push rods (5) on the left side face to the left and are connected to the front and rear ends of the side plate (10) of the left extended compartment (4) respectively. The telescopic rods of the two electric push rods (5) on the right side face to the right and are connected to the front and rear ends of the side plate (10) of the right extended compartment (4) respectively.

6. A semi-trailer support vehicle according to claim 3, characterized in that: An auxiliary support leg (6) is rotatably provided at both the front and rear ends of the connecting plate (12) of each extended carriage (4). A locking mechanism is provided between the auxiliary support leg (6) and the connecting plate (12). When the auxiliary support leg (6) is rotated to a horizontal or vertical state, it can be locked by the locking mechanism.

7. A semi-trailer support vehicle according to claim 1, characterized in that: The extended compartment (4) on the left side is equipped with a main cabin door (17) that can be opened and closed and an emergency door (18) at the front and rear ends respectively.

8. A semi-trailer support vehicle according to claim 1, characterized in that: A double rear door (15) is provided at the rear end of the fixed carriage (3); a lift tailgate (16) is provided at the rear end of the semi-trailer chassis (2).

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