Tip-back type self-dumping semitrailer

Abstract

The utility model relates to the technical field of dump trucks, and discloses a tip-back type dump semitrailer which comprises a dump truck carriage, and a carriage door mounting frame is fixedly mounted at the top of the dump truck carriage and located at the position close to the rear side. According to the rear-turning type self-discharging semitrailer, the width of the position, close to the rear side discharging opening, in the compartment is larger than the width of the area close to the front side, so that the discharging speed of internal materials after the compartment is turned backwards can be effectively increased, the situation that sand is clamped in the compartment and moves upwards along with the compartment, the gravity center of the compartment moves upwards, and then rollover is caused is prevented, and the discharging safety is improved; sand in the area, close to the inner wall of the front side, of the interior of the dumper compartment is partitioned and separated through the back plate anti-adhesion device, it is prevented that the sand adheres into large blocks to be accumulated on the front side during discharging, meanwhile, the inner wall of the bottom of the dumper compartment is swept through the scraper, and the corner angle area, close to the bottom, of the interior of the dumper compartment is shoveled and cleaned through the shovel head; the sand is prevented from staying in the dumper carriage during unloading, and the unloading efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dump truck, concretely to a rear -folding formula dump semi -trailer. BACKGROUND

[0002] The dump truck is a kind of special transport vehicle equipped with hydraulic or mechanical lifting device, and its core function is to complete unloading by the automatic tilting of cargo compartment driven by hydraulic system.The vehicle is composed of chassis, hydraulic pump, lifting hydraulic cylinder and other components, and the cargo compartment is mainly tilted backward (part of the vehicle supports bidirectional tilting), and precise unloading operation is realized by adjusting the piston rod movement of control valve, however, when the general cargo compartment is unloaded, for example, when sand is unloaded, the sand contains a large amount of water when loaded, and after transportation to the destination, the sand has high cohesiveness after extrusion, so that the sand in the cargo compartment is cohesively connected together and cannot be timely removed when the cargo compartment is lifted and tilted backward, and the center of gravity of the cargo compartment is moved upward, so that the vehicle is prone to side tilting, and after unloading, the sand is cohesively connected to the inner wall of the cargo compartment on the front side of the cargo compartment, which needs to be manually cleaned again, causing inconvenience to use. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies in the prior art, the utility model provides a rear -folding formula dump semi -trailer, solves the problem that sand in the cargo compartment is cohesively connected and prone to side tilting during unloading and unloading is not clean.

[0005] (II) technical scheme

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a rear -folding formula dump semi -trailer, including the self -discharging compartment, the top of the self -discharging compartment and the position of the rear side are fixedly installed with the compartment door mounting bracket, the inner side of the compartment door mounting bracket is rotatably installed with the sealed compartment door through bearing, the front side inner wall of the self -discharging compartment is provided with the backboard anti -adhesion device for preventing sand adhesion, the inside of the self -discharging compartment is provided with the bottom cleaning device for cleaning the bottom inner wall of the self -discharging compartment on the front side position;

[0007] The bottom cleaning device includes a hinge seat, a support rod, a scraper, a rotating sleeve, a connecting rod, a shovel head and a limiting rod, the hinge seat is fixedly installed with the bottom inner wall of the self -discharging compartment, the support rod is rotatably installed with the bottom inner wall of the self -discharging compartment through the hinge seat, the scraper is fixedly installed at the bottom of the support rod, the rotating sleeve is rotatably installed with the top of the support rod away from the one end of the hinge seat through bearing, the connecting rod is fixedly installed with the outer wall of the rotating sleeve, the one end of the connecting rod away from the rotating sleeve is hinged with the shovel head through the hinge, and the limiting rod is fixedly installed with the right side inner wall of the self -discharging compartment, and the limiting rod is clamped on the outside of the shovel head.

[0008] Preferably, the back plate anti-adhesion device comprises a support shaft, a connecting cylinder frame and an anti-adhesion rotating plate, the support shaft is fixedly installed on the right side wall of the dump truck compartment, the connecting cylinder frame is rotatably installed on the outer side of the support shaft through a bearing, and the anti-adhesion rotating plate is fixedly installed on the outer wall of the connecting cylinder frame.

[0009] Preferably, the inner wall of the rotating sleeve is fixedly installed with a spiral spring plate, and the inner end of the spiral spring plate is fixedly installed on the top of the support rod.

[0010] Preferably, the back plate anti-adhesion device is arranged in the front inner wall position of the dump truck compartment.

[0011] Preferably, the shovel head is made of an L-shaped plate, and the front end and the rear end of the shovel head are provided with inclined blade edges, and the blade edges are close to the inner wall of the dump truck compartment.

[0012] Preferably, the bottom cleaning device comprises two shovel heads arranged on the left side and the right side of the interior of the dump truck compartment respectively, the shovel head on the rear side is close to the right side bottom corner of the dump truck compartment, and the shovel head on the left side is close to the left side bottom corner of the dump truck compartment.

[0013] Preferably, the width of the front side of the dump truck compartment is smaller than the width of the rear side.

[0014] Compared with the prior art, the utility model provides a rear turnover type dump semi-trailer which has the following beneficial effects:

[0015] 1. The rear turnover type dump semi-trailer, the width of the rear side discharge port position in the interior of the compartment is greater than the width of the front side region, so that the discharge speed of the material in the interior of the compartment after the rear turnover can be effectively improved, sand is prevented from being stuck in the interior of the compartment and moving upward with the compartment to cause the center of gravity of the compartment to move upward and cause rollover, and the safety of discharge is improved.

[0016] 2. The rear turnover type dump semi-trailer, sand close to the front side inner wall region in the interior of the dump truck compartment is separated by the back plate anti-adhesion device, sand is prevented from being accumulated in the front side in the form of a large block during discharge, the bottom inner wall of the dump truck compartment is swept by the scraper, the corner region close to the bottom position in the interior of the dump truck compartment is cleaned by the shovel head, sand is prevented from staying in the interior of the dump truck compartment during discharge, and the discharge efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is the utility model Figure 1 It is an enlarged view of structure A in the utility model;

[0019] Figure 3 For the utility model Figure 1 The structure of the back plate anti-adhesion device is shown in the figure.

[0020] Figure 4 For the utility model back plate anti-adhesion device structure schematic view.

[0021] Wherein: 1, self-unloading carriage; 2, carriage door mounting frame; 3, sealed carriage door; 4, back plate anti-adhesion device; 41, support shaft; 42, connecting cylinder frame; 43, anti-adhesion rotating plate; 5, bottom cleaning device; 51, hinge seat; 52, support rod; 53, scraper; 54, rotating sleeve; 55, connecting rod; 56, shovel head; 57, limiting rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a back folding type self-unloading semitrailer, including self-unloading carriage 1, the top of self-unloading carriage 1 and the position of the rear side are fixedly installed with carriage door mounting frame 2, the inner side of carriage door mounting frame 2 is rotatably installed with sealed carriage door 3 through bearing, the inner wall of the front side of self-unloading carriage 1 is provided with back plate anti-adhesion device 4 for preventing sand adhesion, the inside of the front side of self-unloading carriage 1 is provided with bottom cleaning device 5 for cleaning the inner wall of the bottom of self-unloading carriage 1;

[0024] Bottom cleaning device 5 includes hinge seat 51, support rod 52, scraper 53, rotating sleeve 54, connecting rod 55, shovel head 56 and limiting rod 57, hinge seat 51 is fixedly installed with the inner wall of the bottom of self-unloading carriage 1, support rod 52 is rotatably installed with the inner wall of the bottom of self-unloading carriage 1 through hinge seat 51, scraper 53 is fixedly installed at the bottom of support rod 52, rotating sleeve 54 is rotatably installed with the top of support rod 52 away from the one end of hinge seat 51 through bearing, connecting rod 55 is fixedly installed with the outer wall of rotating sleeve 54, the one end of connecting rod 55 away from rotating sleeve 54 is hinged with shovel head 56 through hinge, limiting rod 57 is fixedly installed with the right inner wall of self-unloading carriage 1, limiting rod 57 is clamped at the outer side of shovel head 56.

[0025] Further, the back plate anti-adhesion device 4 comprises a support shaft 41, a connecting cylinder frame 42 and an anti-adhesion rotating plate 43. The support shaft 41 is fixedly installed on the right side wall of the dump truck compartment 1. The connecting cylinder frame 42 is rotatably installed on the outer side of the support shaft 41 through a bearing. The anti-adhesion rotating plate 43 is fixedly installed on the outer wall of the connecting cylinder frame 42. The lower end of the anti-adhesion rotating plate 43 naturally droops and closely adheres to the front inner wall of the dump truck compartment 1. When unloading, the anti-adhesion rotating plate 43 swings right along the inside of the dump truck compartment 1 under the action of gravity, thereby pushing the material to move right, preventing the material from staying inside the dump truck compartment 1.

[0026] Further, the inner wall of the rotating sleeve 54 is fixedly installed with a vortex spring. The inner end of the vortex spring is fixedly installed on the top of the support rod 52. When the dump truck compartment 1 is in a horizontal state, the support rod 52 and the connecting rod 55 are pulled to approach by the elastic force of the vortex spring. The right end of the support rod 52 is connected with the hinge seat 51, so that when the support rod 52 and the connecting rod 55 rotate, the support rod 52 drives the shovel head 56 to move to the most front position inside the dump truck compartment 1, which can automatically reset after unloading.

[0027] Further, the back plate anti-adhesion device 4 is arranged in the front inner wall position of the dump truck compartment 1. Through the cooperation of multiple back plate anti-adhesion devices 4, the sand close to the front inner wall of the dump truck compartment 1 is segmented and pushed when the back plate anti-adhesion device 4 deflects, so that the sand is no longer coagulated into blocks, effectively reducing the situation that the unloading is not clean due to adhesion.

[0028] Further, the shovel head 56 is made of L-shaped plate. The front end and the rear end of the shovel head 56 are provided with inclined blades. The blades closely adhere to the inner wall of the dump truck compartment 1. The shovel head 56 moves along the right-angle edge position inside the dump truck compartment 1 under the limitation of the limiting rod 57. The sand with high adhesion strength at the right-angle edge position is cleaned by the shovel head 56, effectively reducing the adhesion of the sand.

[0029] Further, the bottom cleaning device 5 is arranged on the left and right sides inside the dump truck compartment 1. The rear side of the shovel head 56 closely adheres to the right side bottom corner position of the dump truck compartment 1. The left side of the shovel head 56 closely adheres to the left side bottom corner position of the dump truck compartment 1. Through the cooperation of the two groups of bottom cleaning devices 5, the sand in the bottom inner wall and the bottom corner area of the dump truck compartment 1 is scraped and cleaned, effectively preventing adhesion and improving unloading efficiency.

[0030] Further, the width of the front side of the dump truck compartment 1 is smaller than the width of the rear side, so that when the dump truck compartment 1 is turned over to unload, the sand inside can be quickly discharged backward, preventing the sand from being blocked inside due to resistance, thereby increasing the risk of overturning.

[0031] In use, when discharging, the front end of the self-unloading carriage 1 is lifted by the discharging hydraulic column of the semitrailer, the self-unloading carriage 1 is overturned along the tail end discharging position, the sand in the self-unloading carriage 1 slides backward to push open the sealed carriage door 3 and is discharged, the anti-sticking rotating plate 43 keeps vertical under the action of gravity while the self-unloading carriage 1 is overturned upward, so that the anti-sticking rotating plate 43 rotates in the self-unloading carriage 1 relative to the self-unloading carriage 1, the multiple anti-sticking rotating plates 43 assist to push the sand at the front side position in the self-unloading carriage 1 to move backward, the closely adhered sand is separated and pushed backward under the pushing of the multiple anti-sticking rotating plates 43, the sand is prevented from adhering to the front side area, meanwhile, the supporting rod 52 and the connecting rod 55 are deflected under the action of gravity and the downward movement of the sand above along the self-unloading carriage 1, the supporting rod 52 drives the scraper 53 to deflect to the discharging direction, the area at the front side position of the bottom of the self-unloading carriage 1 is scraped and cleaned by the scraper 53, the supporting rod 52 deflects backward to drive the connecting rod 55 to move rightward, the connecting rod 55 drives the shovel head 56 to move backward along the inner side of the limiting rod 57, the sand at the corner position of the bottom of the self-unloading carriage 1 is shoveled by the shovel head 56, the sand is prevented from adhering to the corner position of the self-unloading carriage 1, the area of the bottom inner wall, the front side inner wall and the corner position of the self-unloading carriage 1 prone to adhere to the sand is cleaned, and the discharging efficiency is improved.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be substantially changed without departing from the spirit and the scope of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rear-tipping self-dumping semi-trailer, comprising a self-dumping cargo box (1), characterized in that: A truck door mounting bracket (2) is fixedly installed on the top of the dump truck body (1) and at the rear side. A sealed truck door (3) is rotatably installed on the inner side of the truck door mounting bracket (2) through a bearing. A back plate anti-adhesion device (4) for preventing sand from sticking is provided on the front inner wall of the dump truck body (1). A bottom cleaning device (5) for cleaning the bottom inner wall of the dump truck body (1) is provided at the front side of the interior of the dump truck body (1). The bottom cleaning device (5) includes a hinge seat (51), a support rod (52), a scraper (53), a rotating sleeve (54), a connecting rod (55), a shovel head (56), and a limiting rod (57). The hinge seat (51) is fixedly installed to the bottom inner wall of the dump truck body (1). The support rod (52) is rotatably installed to the bottom inner wall of the dump truck body (1) through the hinge seat (51). The scraper (53) is fixedly installed to the bottom of the support rod (52). The rotating sleeve (54) is rotatably installed to the top of the support rod (52) away from the hinge seat (51) through a bearing. The connecting rod (55) is fixedly installed to the outer wall of the rotating sleeve (54). The end of the connecting rod (55) away from the rotating sleeve (54) is hinged to the shovel head (56) through a hinge. The limiting rod (57) is fixedly installed to the right inner wall of the dump truck body (1). The limiting rod (57) is locked to the outside of the shovel head (56).

2. The rear-tipping self-dumping semi-trailer according to claim 1, characterized in that: The back panel anti-adhesion device (4) includes a support shaft (41), a connecting cylinder (42), and an anti-adhesion rotating plate (43). The support shaft (41) is fixedly installed on the right side wall of the dump truck body (1). The connecting cylinder (42) is rotatably installed on the outside of the support shaft (41) through a bearing. The anti-adhesion rotating plate (43) is fixedly installed on the outer wall of the connecting cylinder (42). The lower end of the anti-adhesion rotating plate (43) hangs down naturally and is close to the front inner wall of the dump truck body (1).

3. A rear-tipping self-dumping semi-trailer according to claim 1, characterized in that: A vortex spring is fixedly installed on the inner wall of the rotating sleeve (54), and the inner end of the vortex spring is fixedly installed on the top of the support rod (52).

4. A rear-tipping self-dumping semi-trailer according to claim 2, characterized in that: There are several anti-adhesion devices (4) on the back panel, which are arranged closely on the front inner wall of the dump truck body (1).

5. A rear-tipping self-dumping semi-trailer according to claim 1, characterized in that: The shovel head (56) is made of L-shaped plate. The front and rear ends of the shovel head (56) are provided with inclined cutting edges, which are close to the inner wall of the dump truck body (1).

6. A rear-tipping self-dumping semi-trailer according to claim 1, characterized in that: The bottom cleaning device (5) has two parts, which are respectively set on the left and right sides inside the dump truck body (1). The shovel head (56) on the rear side is close to the bottom corner of the dump truck body (1) on the right side, and the shovel head (56) on the left side is close to the bottom corner of the dump truck body (1) on the left side.

7. A rear-tipping self-dumping semi-trailer according to claim 1, characterized in that: The width of the front side of the dump truck body (1) is smaller than the width of the rear side.

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