Light transport vehicle and transfer ramp device

Abstract

The utility model belongs to the technical field of emergency rescue machinery, and discloses a light transport vehicle and a transfer ramp device, which comprise a light truck chassis (1), a mounting frame (2), an upper frame (3), a lower frame (4), a chain wheel mechanism (5), a spring mechanism (6), a lifting mechanism (7) and a supporting leg mechanism (8), the mounting frame (2) is arranged at the tail part of the light truck chassis (1), and the upper plane of the mounting frame (2) is in smooth transition with a carriage platform of the light truck chassis (1); one end of the upper frame (3) is hinged to the installation frame (2), the other end of the upper frame (3) is hinged to the lower frame (4), and the upper frame (3) and the lower frame (4) can be located in the same plane. Turnover of the upper frame and the lower frame is achieved by operating the speed reducer hand wheel, a transfer ramp is formed, and the crawler-type emergency rescue drainage vehicle can load and unload the transport vehicle along the slope of the ramp. And after loading and unloading are completed, the transfer ramp is folded, the light transport vehicle is started, and rapid transfer of the crawler-type emergency rescue drainage vehicle is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of emergency rescue machinery, especially relates to a light transport vehicle and transfer ramp device. BACKGROUND

[0002] Due to the influence of extreme weather, the super heavy rain weather occurs in inland sometimes, and brings great inconvenience to people's production and life. When the disaster comes, the prevention facilities often lose the effect, and therefore the emergency rescue drainage vehicle is very important in the post-disaster rescue. The vehicle-mounted emergency rescue drainage vehicle has the defects of large size and single operation mode, and cannot be arranged flexibly according to specific conditions. For example, in a narrow space, the vehicle-mounted emergency drainage vehicle has the condition of entering difficulty. The modularized crawler type emergency rescue drainage vehicle can effectively adapt to the site environment, but has the problem of inconvenient transfer, which greatly affects the emergency rescue efficiency.

[0003] During the emergency drainage rescue, the crawler type emergency rescue drainage vehicle has the problem of inconvenient transfer, and needs the crane or forklift to assist in completing the action of loading and unloading the transport vehicle. The crane or forklift is generally an internal motor vehicle, and needs to be equipped with professional personnel for operation. Generally, the area needing emergency rescue is mostly a limited space and uneven ground, and it is difficult to quickly carry out work after the auxiliary vehicle reaches the site. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is the problem of inconvenient transfer of the crawler type emergency rescue drainage vehicle.

[0005] In order to solve the above technical problems, the specific technical scheme of the utility model is as follows:

[0006] A light transport vehicle and transfer ramp device, which comprises a light truck chassis 1, a mounting frame 2, an upper frame 3, a lower frame 4, a chain wheel mechanism 5, a spring mechanism 6, a lifting mechanism 7 and a supporting leg mechanism 8.

[0007] The mounting frame 2 is arranged at the tail of the light truck chassis 1, and the upper surface of the mounting frame 2 is smoothly connected with the platform of the carriage of the light truck chassis 1; one end of the upper frame 3 is hinged to the mounting frame 2, and the other end is hinged to the lower frame 4; the upper frame 3 and the lower frame 4 can be in the same plane.

[0008] The chain wheel mechanism 5 comprises a large chain wheel 51, a small chain wheel 52, a tensioning mechanism 53, a chain 54 and a connecting shaft 56; the large chain wheel 51 is fixed on the mounting frame 2; one end of the connecting shaft 56 is hinged to the upper frame 3, and the other end is fixed to the lower frame 4; the small chain wheel 52 is fixedly connected with the connecting shaft 56; the chain 54 is used for transmitting power between the large chain wheel 51 and the small chain wheel 52; and the tensioning mechanism 53 is used for tensioning the chain 54.

[0009] The spring mechanism 6 is hinged at one end to the mounting frame 2 and at the other end to the upper frame 3, and is used to resist the gravity of the downward movement of the upper frame 3 and the lower frame 4;

[0010] The lifting mechanism 7 comprises a lifting speed reducer 71 and a lifting screw 72; the lifting speed reducer 71 is hinged to the mounting frame 2, and the lifting screw 72 is hinged to the upper frame 3. By operating the hand wheel on the lifting speed reducer 71, the lifting screw 72 can be controlled to extend and retract in the lifting speed reducer, thereby driving the upper frame 3 to flip up and down;

[0011] The support leg mechanism 8 comprises a support leg speed reducer 81, a support leg screw 82 and a support leg seat disc 83; the support leg speed reducer 81 is fixed to the mounting frame 2, the support leg screw 82 extends and retracts in the support leg speed reducer 81, and the support leg seat disc 83 is installed at the lower end of the support leg screw 82; by operating the hand wheel on the support leg speed reducer 81, the downward movement of the support leg screw 82 is controlled, and the support leg seat disc 83 is driven to support on the ground, thereby preventing the light truck chassis 1 from overturning.

[0012] The sprocket mechanism 5 is covered with a sprocket cover.

[0013] The locking bolt is arranged between the upper frame 3 and the lower frame 4.

[0014] The spring mechanism 6 comprises a large-stiffness spring 61, a piston support rod 62, a compression spring seat 63, a cylinder 64 and an oil injection nozzle 65; the oil injection nozzle 65 is installed on the cylinder 64, the piston support rod 62 is installed in the cylinder 64, and the large-stiffness spring 61 is installed on the piston support rod 62; by injecting grease into the cylinder 64 through the oil injection nozzle 65, the position of the piston support rod 62 in the cylinder 64 can be adjusted, and the large-stiffness spring 61 can be compressed; the compression spring seat 63 is hinged to the upper frame 3, and when the upper frame 3 moves downward, the large-stiffness spring 61 is compressed by the compression seat 63, the elastic potential energy is stored, and a matching resistance force is generated to resist the gravity of the downward movement of the upper frame 3 and the lower frame 4.

[0015] The mounting frame, the upper frame and the lower frame are welded from a profile.

[0016] Anti-skid strips are welded on the upper surface of the mounting frame, the upper frame and the lower frame.

[0017] When the upper frame moves, the chain is driven to flip, the flipping force is transmitted to the small sprocket through the chain by the large sprocket, and the small sprocket transmits the flipping force to the lower frame through the connecting shaft, thereby realizing the simultaneous flipping action of the upper frame and the lower frame.

[0018] The utility model has the following advantages: through operating the speed reducer hand wheel, the turnover of the upper frame and the lower frame is realized, the transfer slope is formed, and the crawler type emergency rescue drainage vehicle can be loaded and unloaded along the slope. After loading and unloading are completed, the transfer slope is folded, the light transport vehicle is started, and the rapid transfer of the crawler type emergency rescue drainage vehicle is realized. The present application has the effects of convenient use, high reliability, energy saving and environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a light transport vehicle and transfer slope device transport state diagram;

[0020] Figure 2 It is a light transport vehicle and transfer slope device loading and unloading state diagram;

[0021] Figure 3 It is a sprocket mechanism diagram (cutting sprocket cover);

[0022] Figure 4 It is a spring mechanism diagram;

[0023] Figure 5 It is a mounting rack diagram;

[0024] Figure 6 It is an upper frame diagram;

[0025] Figure 7 It is a lower frame diagram;

[0026] Figure 8 It is a lifting mechanism diagram;

[0027] Figure 9 It is a supporting leg mechanism diagram;

[0028] Wherein, 1 - light truck chassis;2 - mounting rack;3 - upper frame;4 - lower frame;5 - sprocket mechanism;6 - spring mechanism;7 - lifting mechanism;8 - supporting leg mechanism;21 - anti-inclination pull plate;31 - locking bolt;51 - large sprocket;52 - small sprocket;53 - tensioning mechanism;54 - chain;55 - sprocket cover;56 - connecting shaft;61 - large stiffness spring;62 - piston support rod;63 - spring seat;64 - cylinder;65 - oil filler;71 - lifting speed reducer;72 - lifting screw;81 - supporting leg speed reducer;82 - supporting leg screw;83 - supporting leg seat disc. DETAILED DESCRIPTION

[0029] In order to better understand the purpose, structure and function of the utility model, the utility model will be described in further detail below with reference to the drawings.

[0030] For example Figure 1As shown, the light transport vehicle and transfer ramp device of the utility model, including following part: light truck chassis (1), mounting frame (2), upper frame (3), lower frame (4), chain wheel mechanism (5), spring mechanism (6), lifting mechanism (7), outrigger mechanism (8).

[0031] Wherein, (1) light truck chassis 1, light truck chassis 1 is used for emergency rescue drainage vehicle transport;

[0032] (2) mounting frame 2, mounting frame 2 is used for being connected with light truck chassis, and the upper plane is smoothly transitioned with carriage platform.Plasma arc welding can be generally used to connect mounting frame 2 with the frame of light truck chassis into a whole body.Mounting frame 2 is provided with anti-inclination pull plate 21, for the anti-inclination of upper frame 2 in transport state.

[0033] (3) upper frame 3, upper frame 3 is hinged on mounting frame 2, for the overturning movement around the hinge point of mounting frame 2, to form the upper end of transfer ramp.Upper frame 3 is provided with locking bolt 31, for the locking of lower frame 4 in transport state.

[0034] (4) lower frame 4, lower frame 4 is hinged on upper frame 3, for the overturning movement around the hinge point of upper frame 3, to form the lower end of transfer ramp.

[0035] (5) chain wheel mechanism 5, chain wheel mechanism 5 is installed on upper frame 2, for the transmission of overturning force.Chain wheel mechanism 5 includes large sprocket 51, small sprocket 52, tensioning mechanism 53, chain 54, sprocket cover 55, connecting shaft 56.Large sprocket 51 is fixed on mounting frame 2, and it keeps relative static state with mounting frame 2.Connecting shaft 56 is hinged on upper frame 3, and one end is fixed with small sprocket 52, and the other end is fixed with lower frame 4, and chain 54 is used to transmit power between large sprocket 51 and small sprocket 52.When upper frame 3 makes overturning movement, chain 54 is driven to make overturning movement, and overturning force is transmitted to lower frame 4 by large sprocket 51 through chain 54, small sprocket 52 and connecting shaft 55, to realize the simultaneous overturning action of upper frame 3 and lower frame 4.Tensioning mechanism 53 is used to tension chain 54.Sprocket cover 56 plays a protective role.

[0036] (6) Spring mechanism 6, one end of which is hinged to the mounting frame 2 and the other end of which is hinged to the upper frame 3, is used to resist the gravity characteristics of the upper frame 3 and the lower frame 4 to a certain extent when the upper frame 3 and the lower frame 4 move. The spring mechanism 6 includes a large stiffness spring 61, a piston support rod 62, a compression spring seat 63, a cylinder 64 and an oil injection nozzle 65. The oil injection nozzle 65 is installed on the cylinder 64, the piston support rod 62 is installed in the cylinder 64, and the large stiffness spring 61 is installed on the piston support rod 62. By injecting grease into the cylinder 64 through the oil injection nozzle 65, the position of the piston support rod 62 in the cylinder 64 can be adjusted, and the large stiffness spring 61 can be compressed, thereby adjusting the initial working force of the large stiffness spring 61. The compression spring seat 63 is hinged to the upper frame 3. When the upper frame 3 moves downward, the large stiffness spring 61 is compressed by the compression seat 63, the large stiffness spring stores elastic potential energy, and a matching resistance force is generated to resist the gravity of the downward movement of the upper frame 3 and the lower frame 4.

[0037] (7) Lifting mechanism 7, which includes a lifting speed reducer 71 and a lifting screw 72. The lifting speed reducer 71 is hinged to the mounting frame 2, and the lifting screw 72 is hinged to the upper frame 3. By operating the hand wheel on the lifting speed reducer 71, the extension and retraction of the lifting screw 72 in the lifting speed reducer is controlled, thereby driving the upper frame 3 to flip up and down.

[0038] (8) Leg mechanism 8, which includes a leg speed reducer 81, a leg screw 82 and a leg seat disc 83. The leg speed reducer 81 is fixed on the mounting frame 2, the leg screw 82 extends and retracts in the leg speed reducer 81, and the leg seat disc 83 is installed at the lower end of the leg screw 82. By operating the hand wheel on the leg speed reducer 81, the downward movement of the leg screw 82 is controlled, and the leg seat disc 83 is supported to the ground, thereby preventing the light truck chassis 1 from overturning.

[0039] The connecting relationship of the above components is that the mounting frame is used to be connected with the chassis of the light truck, and the upper surface of the mounting frame is smoothly connected with the platform of the carriage. The anti-tilting pull plate is arranged on the mounting frame and is used to prevent the upper frame from tilting in the transportation state. The upper frame is hinged on the mounting frame and is provided with a locking bolt, which is used to lock the lower frame in the transportation state. The lower frame is hinged on the upper frame. The chain wheel mechanism is installed on the upper frame and comprises a large chain wheel, a small chain wheel, a tensioning mechanism, a chain, a connecting shaft and a chain wheel cover. The large chain wheel is fixed with the mounting frame, the small chain wheel is fixed with the lower frame through the connecting shaft, the chain is used to connect the large chain wheel and the small chain wheel, the tensioning mechanism is installed on the upper frame and is used to tension the chain. The chain wheel cover is installed on the upper frame and is used to protect the chain wheel mechanism. The spring mechanism is connected with the mounting frame at one end and is connected with the upper frame at the other end. The spring mechanism comprises a cylinder, an oil injection nozzle, a piston support rod, a large stiffness spring and a spring pressing seat. The cylinder is hinged with the mounting frame, the oil injection nozzle is installed on the cylinder, the piston support rod is installed in the cylinder, the large stiffness spring is installed on the piston support rod, and the spring pressing seat is hinged with the upper frame and is used to compress the large stiffness spring. The lifting mechanism comprises a lifting speed reducer and a lifting screw rod. The lifting speed reducer is hinged with the mounting frame, and the lifting screw rod is hinged with the upper frame. The supporting leg mechanism comprises a supporting leg speed reducer, a supporting leg screw rod and a supporting leg seat disc. The supporting leg speed reducer is fixed on the mounting frame, the supporting leg screw rod is connected with the supporting leg seat disc, and the supporting leg seat disc is used to support the ground.

[0040] Further, the mounting frame, the upper frame and the lower frame are welded by section bars, and corresponding hinge seats are welded at the connecting positions to ensure that the transfer ramp has sufficient strength and rigidity. Anti-skid strips are welded on the upper surface to effectively prevent skidding.

[0041] Further, the large chain wheel is relatively static with the mounting frame, and when the upper frame moves, the chain is driven to make a turning movement. The turning force is transmitted from the large chain wheel to the small chain wheel through the chain, and then the small chain wheel transmits the turning force to the lower frame through the connecting shaft, so as to realize the turning movement of the upper frame and the lower frame at the same time.

[0042] Further, the diameters of the large chain wheel and the small chain wheel are in a certain ratio, so as to ensure that the turning angles of the upper frame and the lower frame are in a specific proportional relationship.

[0043] Further, the tensioning mechanism is used to tension the chain to prevent the chain from loosening and coming off. At the same time, the tensioning mechanism can compensate for the turning angles of the upper frame and the lower frame to a certain extent, thereby improving the environmental adaptability of the transfer ramp.

[0044] Further, the spring mechanism can resist the gravity characteristics of the upper frame and the lower frame to a certain extent. When the upper frame moves downward, the large stiffness spring is compressed by the compression seat, the large stiffness spring stores elastic potential energy, and a matching resistance force is generated to resist the gravity of the downward movement of the upper frame and the lower frame. When the upper frame moves upward, the large stiffness spring releases the elastic potential energy and pushes the upper frame and the lower frame to move upward.

[0045] Further, the piston support rod can slide along the inner wall of the cylinder barrel. By injecting lubricating grease through the oil injection nozzle, the piston support rod slides outward along the cylinder barrel arm, compressing the large stiffness spring, thereby playing a role in adjusting the initial working force of the large stiffness spring.

[0046] Further, the piston support rod can also play a role in limiting the bending deformation of the large stiffness spring when compressed.

[0047] Working process

[0048] When entering the loading and unloading state, the hand wheel on the support leg mechanism 8 is operated to support the support leg seat plate 83 to the ground. After the two side support leg seat plates 83 are effectively supported to the ground, the locking bolt 31 and the anti-tilt pull plate 21 are opened. The hand wheel on the lifting mechanism 7 is operated to drive the upper frame 3 to move downward. At the same time, the chain wheel mechanism 5 transmits the overturning force to the lower frame 4, driving the lower frame 4 to move downward. At this time, the spring mechanism 6 starts to store energy and generates matching resistance, thereby improving the operating force of the lifting mechanism 7. After the lower ends of the two side lower frames 4 effectively contact the ground, the crawler-type emergency drainage vehicle is driven along the inclined surface of the transfer ramp to be loaded and unloaded.

[0049] When entering the transportation state, the hand wheel on the lifting mechanism 7 is operated to drive the upper frame 3 to move upward. At this time, the spring mechanism 6 starts to release energy and pushes the upper frame 3 and the lower frame 4 to move upward, thereby improving the operating force of the lifting mechanism 7. After the two side upper frames 3 and lower frames 4 are effectively retracted, the two side locking bolts 31 and anti-tilt pull plates 21 are inserted. The hand wheel on the support leg mechanism 8 is operated to drive the support leg seat plate 83 to disengage from the ground. After the two side support leg seat plates 83 are disengaged from the ground to the highest position, the transport vehicle is started to quickly transport the emergency drainage vehicle.

[0050] Although the embodiments of the present application are described in combination with the drawings, a number of modifications and improvements can be made by those skilled in the art without departing from the principles of the present application, and these should be considered to fall within the scope of protection of the present application.

Claims

1. A lightweight transporter and transfer ramp apparatus, characterized by, The light truck chassis (1), the mounting frame (2), the upper frame (3), the lower frame (4), the chain wheel mechanism (5), the spring mechanism (6), the lifting mechanism (7), and the supporting leg mechanism (8); The mounting frame (2) is arranged at the tail of the light truck chassis (1), and the upper surface of the mounting frame (2) is smoothly connected with the platform of the carriage of the light truck chassis (1); one end of the upper frame (3) is hingedly connected with the mounting frame (2), and the other end is hingedly connected with the lower frame (4); the upper frame (3) and the lower frame (4) can be arranged in the same plane. The chain wheel mechanism (5) comprises a large chain wheel (51), a small chain wheel (52), a tensioning mechanism (53), a chain (54), and a connecting shaft (56); the large chain wheel (51) is fixed on the mounting frame (2); one end of the connecting shaft (56) is hingedly connected with the upper frame (3), and the other end is fixed with the lower frame (4); the small chain wheel (52) is fixedly connected with the connecting shaft (56); the chain (54) is used for transmitting power between the large chain wheel (51) and the small chain wheel (52); and the tensioning mechanism (53) is used for tensioning the chain (54). The spring mechanism (6) is hingedly connected with the mounting frame (2) at one end and hingedly connected with the upper frame (3) at the other end, and is used for resisting the gravity of the downward movement of the upper frame (3) and the lower frame (4). The lifting mechanism (7) comprises a lifting speed reducer (71) and a lifting screw rod (72); the lifting speed reducer (71) is hingedly connected with the mounting frame (2), and the lifting screw rod (72) is hingedly connected with the upper frame (3); by operating the hand wheel on the lifting speed reducer (71), the lifting screw rod (72) can be controlled to be extended or retracted in the lifting speed reducer, so as to drive the upper frame (3) to be turned up and down. The supporting leg mechanism (8) comprises a supporting leg speed reducer (81), a supporting leg screw rod (82), and a supporting leg seat disc (83); the supporting leg speed reducer (81) is fixed on the mounting frame (2); the supporting leg screw rod (82) is extended or retracted in the supporting leg speed reducer (81); and the supporting leg seat disc (83) is arranged at the lower end of the supporting leg screw rod (82); by operating the hand wheel on the supporting leg speed reducer (81), the downward movement of the supporting leg screw rod (82) can be controlled, so as to drive the supporting leg seat disc (83) to be supported on the ground, thereby preventing the light truck chassis (1) from overturning.

2. The lightweight transporter and transfer ramp apparatus of claim 1, wherein, The surface of the chain wheel mechanism (5) is covered with a chain wheel cover.

3. The lightweight cart and transfer ramp apparatus of claim 1, wherein, A locking bolt is arranged between the upper frame (3) and the lower frame (4).

4. The lightweight cart and transfer ramp apparatus of claim 1, wherein, The spring mechanism (6) comprises a large stiffness spring (61), a piston support rod (62), a spring seat (63), a cylinder (64), and an oil injection nozzle (65); the oil injection nozzle (65) is arranged on the cylinder (64); the piston support rod (62) is arranged in the cylinder (64); and the large stiffness spring (61) is arranged on the piston support rod (62); by injecting lubricating grease into the cylinder (64) through the oil injection nozzle (65), the position of the piston support rod (62) in the cylinder (64) can be adjusted, and the large stiffness spring (61) can be compressed; the spring seat (63) is hingedly connected with the upper frame (3); when the upper frame (3) moves downward, the large stiffness spring (61) is compressed through the spring seat (63), the elastic potential energy of the large stiffness spring (61) is stored, and a matched resistance force is generated, which is used for resisting the gravity of the downward movement of the upper frame (3) and the lower frame (4).

5. The lightweight cart and transfer ramp apparatus of claim 1, wherein, The mounting frame, the upper frame, and the lower frame are welded by profiled materials.

6. The lightweight transporter and transfer ramp apparatus of claim 5, wherein, Anti-skid strips are welded on the mounting frame, the upper frame and the lower frame.

7. The lightweight cart and transfer ramp apparatus of claim 1, wherein, When the upper frame is in action, the chain is driven to make a turning motion, the turning force is transmitted from the large sprocket to the small sprocket through the chain, and then the small sprocket transmits the turning force to the lower frame through the connecting shaft, so that the upper frame and the lower frame are simultaneously turned.

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