WO2022147896A1

WO2022147896A1 - Front and back acting multi-functional semi-trailer having a lifting function

Info

Publication number: WO2022147896A1
Application number: PCT/CN2021/078427
Authority: WO
Inventors: 邱承刚; 庞喜波; 贾传伟
Original assignee: 山东通华专用车辆股份有限公司
Priority date: 2021-01-11
Filing date: 2021-03-01
Publication date: 2022-07-14
Also published as: CN112623053A; CN112623053B

Abstract

A front and back acting multi-functional semi-trailer having a lifting function. Provided inside of a trailer chamber (7) is a pushing plate (5) used for cleaning and scarping an inner wall of the trailer chamber (7). Fastened to the front end of a front sealed door (4) of the trailer chamber (7) is a back pushing oil cylinder support (2). Fastened on the back pushing oil cylinder support (2) is a back pushing oil cylinder (3) used for pushing the pushing plate (5) to slide. A telescopic rod of a back pushing oil cylinder (3) passes through an opening on the front sealed door (4) and is connected to the pushing plate (5). Provided between the back pushing oil cylinder support (2) and the trailer frame is a front lifting oil cylinder (1) used for lifting the trailer chamber (7). The back end of the trailer frame is provided with a back rotation support (12). Provided on the back rotation support (12) is a back rotation shaft (11). The trailer chamber (7) and the back rotation support (12) are hingedly connected by means of a back rotation shaft (11). Thus, the function of automatically scraping and cleaning the inner wall of the trailer chamber (7) during unloading is implemented. The front portion of the trailer chamber (7) is lifted during unloading, and the trailer chamber (7) forms a slope, thereby facilitating rapid unloading, conserving human and financial resources, lowering the cleaning difficulty during unloading, and substantially enhancing working efficiency.

Description

A multi-purpose semi-trailer with lifting function and front and rear functions

technical field

The invention relates to a multifunctional semi-trailer, more particularly, to a multifunctional semi-trailer with a lifting function and front and rear functions.

Background technique

The rapid development of modern society has gradually highlighted the insufficiency and lack of functions of modern transportation equipment in life and the environment. Some cities, towns, schools and other concentrated activity places, toilets, garbage in public areas, and sludge produced by river dredging , During the unloading process after transportation, it is difficult to completely unload the dirt. Due to the high viscosity and humidity of the dirt, it is easy to stick to the inner wall of the car box. Due to the strong smell and viscosity of the dirt, it is necessary to manually clean the interior of the semi-trailer again. The physical health of the staff is affected, and it is not easy to clean up, which is time-consuming and labor-intensive. In rainy and snowy weather, the silt on the muddy road, as well as the raw materials that are difficult to unload for industrial use or the slag produced by the industrial process are also difficult to be completely unloaded after transportation. Therefore, a new type of semi-trailer model was invented and designed to solve the problem. The difficulties encountered in this technical problem.

SUMMARY OF THE INVENTION

In order to overcome the shortcomings of the above technical problems, the present invention provides a multifunctional semi-trailer with a lifting function and a front and rear function.

The multifunctional semi-trailer with lifting function and front and rear function of the present invention is provided with a car box, axle suspension, wheels, axles and a frame, the car box is arranged on the upper end of the frame, and a plurality of axles are suspended The frame is evenly fixed on the lower end of the frame at a certain distance, the axle suspensions are connected by a leaf spring, the leaf spring is connected with an axle, and the axle is connected with a wheel, which is characterized in that: the front end of the car box is connected to the The rear end is respectively provided with a front sealing door and a rear door, the inside of the car box is provided with a push plate for cleaning the inner wall of the car box and scraping the material, the front end of the front sealing door of the car box is fixed with a push back cylinder bracket, and a push plate for pushing the push plate is fixed on the back push oil cylinder bracket The sliding push-back cylinder, the telescopic rod of the push-back cylinder is connected with the push plate through the opening on the front sealing door;

A front lift cylinder for lifting the car box is arranged between the rear push cylinder bracket and the frame, the telescopic rod of the front lift cylinder is hinged on the rear push cylinder bracket, and the base of the front lift cylinder is hinged to the frame The rear end of the frame is provided with a rear rotating bracket, the rear rotating bracket is provided with a rear rotating shaft, and the car box and the rear rotating bracket are hinged through the rear rotating shaft.

In the multi-functional semi-trailer with lifting function and front and rear function of the present invention, the rear door is fixed with a rear door flip lock hook, a rear door lifting oil cylinder is hinged on the rear door flip lock hook, and the telescopic rod of the rear door lifting oil cylinder is connected with the rear door flip lock hook. Hinged, the base of the rear door lift cylinder is hinged on the inner support rod of the car box; the top of the rear end of the car box is hinged with a hanging door hook, and the rear door is fixed on the hanging door hook.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, a hoist is fixed on the frame at the front end of the car box, the hoist is provided with a wire rope for assisting the reset of the push plate, and the end of the wire rope is connected with the push plate.

In the multi-functional semi-trailer with lifting function and front and rear function of the present invention, a push plate frame is arranged on the push plate, a square groove is arranged along the periphery of the push plate frame, and an annular groove is arranged along the inner side of the circumference. The airbag is provided with a scraper along the outer side of the groove, and the scraper is closely attached to the inner wall of the car box. In the gap between it and the inner side wall of the groove, the air bag always has an outward pressure on the scraper; the outer side of the push plate frame is provided with a sealing rubber plate, and the lower end of the sealing rubber plate is connected with the push plate frame through the connecting bolts. The upper end of the sealing rubber plate and the scraper are fixed by connecting bolts.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, a cleaning device for cleaning the interior of the car box is arranged on the front side of the car box, and the cleaning device is fixed on the car frame.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, the upper end of the car box is provided with a car box upper side beam, and a sealing top cover device for sealing the top cover of the car box is fixed on the upper side beam of the car box, and the sealing cover device is hydraulic Mechanism control switch.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, the front and rear ends of the car box are respectively provided with front and rear reinforcing brackets for reinforcing the car box.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, the lower end of the car box is provided with a car box stabilizer for stabilizing the car box when the semi-trailer is running.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, a hydraulic oil tank for supplying oil to the hydraulic oil cylinder device is arranged on the frame at the front end of the car box.

In the multifunctional semi-trailer with lifting function and front and rear function of the present invention, the middle part of the frame at the lower end of the car box is provided with outriggers for supporting and stabilizing the semi-trailer when the semi-trailer is unloaded.

The beneficial effects of the present invention are as follows: the multifunctional semi-trailer with lifting function and front and rear functions of the present invention realizes the function of automatically scraping and cleaning the inner wall of the car during unloading by setting the rear push cylinder and the push plate, saving manpower material resources, improve work efficiency. By setting the front lifting oil cylinder and the rear rotating shaft, the front part of the car box is lifted when the truck is unloading, and the car box forms a slope, which is conducive to quick unloading and saves unloading time. The rear door lift cylinder is set through the rear door of the car box to realize the automatic opening and closing of the rear door, which is convenient for operation. The invention mainly solves the transportation of urinals, garbage and river silt in centralized activity places such as cities, towns, schools, etc., and is suitable for industrial production, transporting raw materials that are difficult to unload for industrial use or slag produced in industrial processes. The car box is sealed without leakage, which avoids secondary pollution to the environment during transportation.

Description of drawings

Fig. 1 is the structure schematic diagram of the multifunctional semi-trailer with lifting function and front and rear function according to the present invention;

Fig. 2 is the left side view of the multifunctional semi-trailer with lifting function and front and rear function of the present invention;

Fig. 3 is the right side view of the multifunctional semi-trailer with lifting function and front and rear function of the present invention;

4 is a schematic structural diagram of a push plate of the present invention;

Fig. 5 is the sectional view along the line A-A in Fig. 5 of the present invention;

FIG. 6 is a schematic structural diagram of the circular car box of the multifunctional semi-trailer with a lifting function and a front-rear function according to the present invention.

In the picture: 1 front lift cylinder, 2 rear push cylinder bracket, 3 rear push cylinder, 4 front door, 5 push plate, 6 car box upper side beam, 7 car box, 8 hanging door hook, 9 rear door, 10 rear door flip lock Hook, 11 rear swivel axle, 12 rear swivel bracket, 13 rear fenders, 14 axle suspension, 15 wheels, 16 lower discs, 17 axles, 18 mudguards; 19 intelligent electro-hydraulic controllers, 20 side fenders , 21 Outriggers, 22 Side Lights, 23 Car Stabilizers, 24 Traction Pins, 25 Front Marking Lights, 26 Sealed Top Covers, 27 Hydraulic Oil Tanks, 28 Cleaning Devices, 29 Rear Door Lifting Cylinders, 30 Rear Tail Lights, 31 Reflector, 32 Tail Marking Plate, 33 Rear Bumper Bar, 34 Rear Reinforcement Bracket of Car, 35 Front Reinforcement Bracket of Car, 36 Hoist, 37 Wire Rope, 38 Scraper, 39 Sealing Rubber Plate, 40 Guide Block, 41 Airbag, 42 Push plate frame, 43 connecting bolts.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in Figures 1-3, a schematic diagram of the overall structure of the multi-functional semi-trailer with lifting function and front and rear functions of the present invention is given, and the shown multi-functional semi-trailer with lifting function and front and rear functions , the semi-trailer is provided with a car box 7, an axle suspension 14, wheels 15, an axle 17 and a frame, the car box 7 is arranged on the upper end of the frame, and a plurality of axle suspensions 14 are evenly fixed to the frame at a certain distance The lower end of the axle suspension 14 is connected by a leaf spring, the leaf spring is connected with the axle 17, the axle 17 is connected with the wheel 15, the lower end of the leaf spring of the axle 17 and the lower end of the axle suspension 14 are arranged between There is a lower disk portion 16 for assisting the damping action of the wheel 15 . The upper end of the wheel 15 is provided with a mudguard 18 for preventing mud and dirt from splashing on the tire, and the rear end of the mudguard 18 is provided with a rear protective plate 13 for protecting the wheel 15 .

The front end and the rear end of the car box 7 are respectively provided with a front sealing door 4 and a rear door 9, the interior of the car box 7 is provided with a push plate 5 for cleaning the inner wall of the car tank and scraping materials, and the front end of the front sealing door 4 of the car box 7 is fixed with a push back oil cylinder bracket 2. A push-back oil cylinder 3 for pushing the push plate 5 to slide is fixed on the push-back oil cylinder bracket 2 , and the telescopic rod of the push-back oil cylinder 3 is connected to the push plate 5 through the opening on the front sealing door 4 . When the semi-trailer is unloading, the push-back cylinder 3 is activated, the telescopic rod of the push-back cylinder 3 is extended, and the push plate 5 is pushed to the rear of the car box 7, and the push plate 5 pushes the mud inside the car box 7 to the outside of the car box, The whole process of automatic operation speeds up the unloading process.

A front lift cylinder 1 for lifting the car box 7 is arranged between the rear push cylinder bracket 2 and the frame, and the telescopic rod of the front lift cylinder 1 is hinged on the rear push cylinder bracket 2. The machine base is hinged on the frame; the rear end of the frame is provided with a rear rotating bracket 12 , and a rear rotating shaft 11 is arranged on the rear rotating bracket 12 .

A rear door flip lock hook 10 is fixed on the rear door 9, a rear door lift cylinder 29 is hinged on the rear door flip lock hook 10, the telescopic rod of the rear door lift cylinder 29 is hinged with the rear door flip lock hook 10, and the base of the rear door lift cylinder 29 is hinged to the car box 7; the top of the rear end of the car box 7 is hinged with a hanging door hook 8, and the rear door 9 is fixed on the hanging door hook 8.

When the semi-trailer is unloading, open the front lift cylinder 1, the telescopic rod of the front lift cylinder 1 extends, push the cylinder bracket 2 up after the lift, the front end of the car box 7 then push the oil cylinder bracket 2 to rise, and the car box 7 rotates later The shaft 11 rotates upwards as the center, the car box 7 rises to the specified height, the telescopic rod that operates the front lift cylinder 1 stops extending, the car box 7 is in a tilted state, the rear door 9 is opened, and the unloading begins. After the unloading is completed, the front lift cylinder 1 is activated again, the telescopic rod of the front lift cylinder 1 is retracted, and the car box 7 falls back to the horizontal position. The front part of the car box 7 is tilted up, and the inclined car box 7 is more conducive to quick unloading and improves the work efficiency of the staff.

When the rear door 9 is opened, the rear door lifting oil cylinder 29 is opened, the telescopic rod of the rear door lifting oil cylinder 29 is stretched out, and the rear door 9 is pushed to rotate upward with the hinge point of the hanging door hook 8 on the car box 7 as the center, and after the rear door 9 is opened and rises to the designated position, The telescopic rod that operates the rear door lifting cylinder 29 stops extending and starts unloading. After the unloading is completed, the rear door lifting cylinder 29 is activated, the telescopic rod of the rear door lifting cylinder 29 is retracted, and the rear door 9 is closed.

A hoist 36 is fixed on the frame at the front end of the car box 7 . The hoist 36 is provided with a wire rope 37 for assisting the reset of the push plate 5 , and the end of the wire rope 37 is connected with the push plate 5 . When the unloading of the semi-trailer is completed, the push plate 5 has been pushed to the rear end of the car box 7 by the push back cylinder 3. When loading again, the push plate 5 should be reset and return to the front end of the car box 7, and the hoist 36 assists the push back cylinder 3. Pull the push plate 5 to return to the front end of the box 7 .

As shown in FIG. 4 and FIG. 5 , the general structural schematic diagram of the push plate of the present invention is given. The push plate 5 shown is provided with a push plate frame 42 , and an annular groove is provided along the periphery of the push plate frame 42 , the inner side of the groove is provided with a square airbag 41, the outer side of the groove is provided with a scraper 38, the scraper 38 is closely fitted with the inner wall of the car box 7, and the lower end of the scraper 38 is provided with two symmetrical The guide block 40, the two guide blocks 40 are respectively arranged in the gap between the outer side walls of the air bag 41 and the inner side wall of the groove. Sliding in the gap, the airbag 41 always exerts an outward pressure on the scraper 38 , so that the scraper 38 is in close contact with the inner wall of the car box 7 . The push plate frame 42 is provided with a sealing rubber plate 39 along the outer side of the periphery.

When the push plate 5 moves in the car box 7 , the scraper 38 is squeezed by the air bag 41 , and is closely attached to the inner wall of the car box 7 , which plays the role of cleaning the inner wall of the car box 7 and will stick to the inner wall of the car box 7 . The dirt on the car is scraped clean, so that the inner wall of the car box 7 is cleaned more cleanly. The sealing rubber plate 39 protects the grooves of the push plate frame 42 and the sludge and sundries entering into the air bag 41, which affects the contraction of the air bag and the function of the squeezing scraper 38.

The front side of the car box 7 is provided with a cleaning device 28 for cleaning the inside of the car box 7 , and the cleaning device 28 is fixed on the vehicle frame. After the unloading of the semi-trailer is completed, the cleaning device 28 transmits the cleaning liquid to the inside of the car box 7 through the connecting pipeline, and washes and cleans the inside of the car box 7, so as to reduce the corrosion of the mud and dirt on the inside of the car box 7 and reduce the emission of odorous gas. spread.

The upper end of the car box 7 is provided with a car box upper side beam 6, and a sealing top cover device 26 for sealing the top cover of the car box 7 is fixed on the car box upper side beam 6, and the sealing cover device 26 is controlled by a hydraulic mechanism. After the loading of the semi-trailer 7 is completed, the top cover of the truck box 7 is sealed to prevent the garbage sludge from overflowing the truck box 7 during transportation, causing secondary pollution to the environment and avoiding manual cleaning again.

The front and rear ends of the car box 7 are respectively provided with a car box front reinforcement bracket 35 and a car box rear reinforcement bracket 34 for reinforcing the car box 7, and the car box 7 is further reinforced during transportation, so as to prevent the car box 7 from bursting during transportation and causing serious damage to the surrounding environment. Pollution.

The lower end of the car box 7 is provided with a car box stabilizer 23 for stabilizing the car box 7 when the semi-trailer is running, so as to prevent the car box 7 from shaking during the running process of the semi-trailer 7 .

A hydraulic oil tank 27 for supplying oil to the hydraulic oil cylinder device is provided on the frame at the front end of the car box 7, which ensures that each oil cylinder works stably during operation.

The middle of the frame at the lower end of the car box 7 is provided with outriggers 21 for supporting and stabilizing the semi-trailer when the semi-trailer is unloading. When the semi-trailer is unloading, the front end of the car box 7 is lifted upwards, and the outriggers 21 avoid the semi-trailer from tipping backwards.

As shown in FIG. 6 , a schematic structural diagram of the circular car box of the multi-functional semi-trailer with lifting function and front and rear functions of the present invention is given. The system structures of the semi-trailer car box shown are suitable for both It is suitable for round, oval, polygonal body and other irregular shaped trucks, which can realize the closed truck running garbage and ensure clean unloading.

The frame of the semi-trailer of the present invention is provided with an intelligent electro-hydraulic controller 19 for controlling the operation of the oil cylinder. Side lights 22 are evenly arranged on the sides of the frame at a certain distance, rear tail lights 30 are arranged at the rear end of the frame, rear bumper bars 33 are arranged at the rear end of the frame, and rear bumper bars 33 are arranged at the rear end of the frame. A reflector 31 and a tail marking plate 32 are arranged on the upper side, a front edge light 25 is arranged at the front end of the upper side beam 6 of the vehicle body, and a traction pin device 24 for connecting with the front end of the front end of the frame is arranged at the lower end.

When the semi-trailer of the present invention is in use, all control mechanisms work together to realize automatic loading and unloading of the truck, save time and effort, and improve work efficiency. The whole process is sealed and transported, so as to prevent the garbage and mud from being transported in one car box 7, and protect the environment from secondary pollution.

Claims

A multifunctional semi-trailer with a lifting function and front and rear functions, the semi-trailer is provided with a carriage (7), an axle suspension (14), wheels (15), an axle (17) and a frame, and the carriage ( 7) Set on the upper end of the vehicle frame, a plurality of axle suspensions (14) are evenly fixed to the lower end of the vehicle frame at a certain distance, and the axle suspensions (14) are connected by leaf springs, and the leaf springs are connected There is an axle (17), the axle (17) is connected with a wheel (15), and it is characterized in that: the front end and the rear end of the car box (7) are respectively provided with a front sealing door (4) and a rear door (9), and the car box ( 7) A push plate (5) for cleaning and scraping the inner wall of the car tank is arranged inside, and the front end of the front sealing door (4) of the car box (7) is fixed with a push-back cylinder bracket (2), and a push-back cylinder bracket (2) A push-back cylinder (3) for pushing the push-plate (5) to slide is fixed thereon, and the telescopic rod of the push-back cylinder (3) is connected to the push-plate (5) through the opening on the front sealing door (4);

A front lift cylinder (1) for lifting the car box (7) is arranged between the rear push cylinder bracket (2) and the frame, and a telescopic rod of the front lift cylinder (1) is hinged to the rear push cylinder bracket (2). ), the base of the front lift cylinder (1) is hinged on the frame; the rear end of the frame is provided with a rear rotating bracket (12), and the rear rotating bracket (12) is provided with a rear rotating shaft (11), The car box (7) is hinged with the rear rotating bracket (12) through the rear rotating shaft (11).
The multifunctional semi-trailer with lifting function and front and rear function according to claim 1, characterized in that: the rear door (9) is fixed with a rear door flip lock hook (10), and the rear door flip lock hook (10) ) is hinged with a rear door lifting cylinder (29), the telescopic rod of the rear door lifting cylinder (29) is hinged with the rear door flip lock hook (10), and the base of the rear door lifting cylinder (29) is hinged to the inner support rod of the car box (7). The top of the rear end of the car box (7) is hinged with a hanging door hook (8), and the rear door (9) is fixed on the hanging door hook (8).
The multifunctional semi-trailer with lifting function and front and rear function according to claim 1, characterized in that: a hoist (36) is fixed on the frame at the front end of the car box (7), and the hoist (36) is fixed on the frame. A steel wire rope (37) for assisting the reset of the push plate (5) is provided, and the end of the wire rope (37) is connected with the push plate (5).
The multifunctional semi-trailer with lifting function and front and rear function according to claim 1 or claim 3, characterized in that: the push plate (5) is provided with a push plate frame (42), and the push plate A square groove is provided along the periphery of the frame (42), an annular air bag (41) is provided on the inner side of the groove along the periphery, and a scraper (38) is provided on the outer side of the groove along the periphery, and the scraper (38) It is closely attached to the inner wall of the car box (7), the lower end of the scraper (38) is provided with two symmetrical guide blocks (40), and the two guide blocks (40) are respectively arranged on the outer side walls of the airbag (41) on both sides of the airbag (41). In the gap between the inner side walls of the groove, the air bag (41) always has an outward pressure on the scraper (38); the outer side of the push plate frame (42) is provided with a sealing rubber plate (39) along the periphery, and the sealing rubber The lower end of the plate (39) and the push plate frame (42) are fixed by connecting bolts (43), and the upper end of the sealing rubber plate (39) and the scraper (38) are fixed by connecting bolts (43).
The multifunctional semi-trailer with lifting function and front and rear function according to any one of claims 1 to 4, characterized in that: the front side of the car box (7) is provided with a car box (7) for cleaning the car box (7) The internal cleaning device (28) is fixed on the vehicle frame.
The multifunctional semi-trailer with lifting function and front and rear function according to any one of claims 1 to 4, characterized in that: the upper end of the car box (7) is provided with a car box upper side beam (6), A sealing top cover device (26) for sealing the top cover of the vehicle box (7) is fixed on the upper side beam (6) of the car box, and the sealing cover device (26) is controlled and switched by a hydraulic mechanism.
The multifunctional semi-trailer with lifting function and front and rear function according to any one of claims 1 to 4, characterized in that: the front and rear ends of the car box (7) are respectively provided with for strengthening the car box ( 7) The front reinforcement bracket (35) of the car box and the rear reinforcement bracket (34) of the car box.
The multifunctional semi-trailer with lifting function and front and rear function according to any one of claims 1 to 4, characterized in that: the lower end of the car box (7) is provided with a car box for stabilizing the car box when the semi-trailer is running (7) of the box stabilizer (23).
The multifunctional semi-trailer with lifting function and front and rear action according to any one of claims 1 to 4, characterized in that: the frame at the front end of the car box (7) is provided with a hydraulic Hydraulic oil tank (27) for supplying oil to the cylinder unit.
The multifunctional semi-trailer with lifting function and front and rear function according to any one of claims 1 to 4, characterized in that: the middle part of the frame at the lower end of the car box (7) is provided with a semi-trailer for semi-trailer The outriggers (21) that support and stabilize the semi-trailer when the trailer is unloaded.