Self-unloading freight vehicle

Abstract

The utility model discloses a self-unloading freight vehicle which comprises a motorcycle body, a loading bin is arranged at the top of the motorcycle body and close to one end of the back face, a jacking mechanism is arranged between the middle of the motorcycle body and the bottom of the loading bin, and a hinge piece is arranged between the bottom of the loading bin and one end of the back face of the motorcycle body. A buffering mechanism is arranged at the end, close to the front face, of the bottom of the cargo loading bin and comprises a buffering cushion block and a damping rod, the damping rod is connected to the middle of the buffering cushion block in a penetrating mode, and the outer wall of the damping rod is sleeved with a damping spring. The buffering mechanism arranged at the bottom of the loading bin is used for buffering when the loading bin falls down and makes contact with a motorcycle body, firstly, the buffering cushion block makes contact with the top end of the motorcycle body, in this way, after the buffering cushion block is pressed, the damping spring is used for buffering in the extrusion process, and meanwhile the damping rod is matched with the damping spring to reduce buffering force; and the stable operation of the whole buffer mechanism is ensured.

Description

Technical Field

[0001] The utility model relates to the field of freight vehicles, in particular to a dump-type freight vehicle. Background Art

[0002] A dump truck is a type of truck with an automatic dumping device on the cargo area. It is also called a tipper truck. It consists of a chassis, a hydraulic lifting mechanism, a cargo compartment, and a power take-off device. A small dump truck that uses a motorcycle body as a carrier is used frequently in the process of transporting small-scale cargo.

[0003] In the process of flipping and lifting the loading bin of the existing dump trucks using motorcycle bodies as carriers, the loading bin is flipped and straightened by the diagonal bracing and diagonal pulling of the lifting mechanism. During the straightening of the loading bin, the bottom of the front end thereof will gradually approach the motorcycle body. During the process of restoring traction of the lifting mechanism, if the driving is too fast, the bottom of the front end of the loading bin will hit the top of the motorcycle body. If the process is not buffered, the top of the motorcycle body will be deformed due to frequent operations, which will seriously affect the loading and unloading of the entire freight vehicle. Utility Model Content

[0004] The purpose of the utility model is to provide a dump truck to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dump truck, comprising a motorcycle body, a loading bin is arranged at the top of the motorcycle body and at one end close to the back, a lifting mechanism for lifting the loading bin angle is arranged between the middle of the motorcycle body and the bottom of the loading bin, a hinge is arranged between the bottom of the loading bin and one end of the back of the motorcycle body, a buffer mechanism is arranged at the bottom of the loading bin and at one end close to the front, and the buffer mechanism comprises:

[0006] A buffer block, the buffer block is slidably connected to the bottom of the loading bin;

[0007] A damping rod is inserted and connected to the middle part of the buffer pad, and a shock absorbing spring is sleeved on the outer wall of the damping rod.

[0008] Preferably, a seat cushion unit for the rider to sit on is provided at one end of the top front side of the motorcycle body.

[0009] Preferably, the hinge comprises:

[0010] Rotating struts, a plurality of which are respectively arranged on both sides of one end of the back side of the loading bin;

[0011] The supporting plates are fixedly connected to both sides of one end of the back of the motorcycle body, and the ends of the rotating struts away from the loading bin are rotatably and interlacedly connected to the tops of the supporting plates.

[0012] Preferably, the lifting mechanism comprises:

[0013] A lifting hydraulic rod, the lifting hydraulic rod is inserted and connected to the middle part of the motorcycle body;

[0014] An articulated seat is arranged in the middle of the bottom end of the loading bin, and the top of the lifting hydraulic rod is hinged to the bottom of the articulated seat.

[0015] Preferably, a diagonal support plate is fixedly connected to the middle of the bottom end of the motorcycle body, and the bottom of the lifting hydraulic rod is fixedly connected to the top end of the diagonal support plate.

[0016] Preferably, a storage groove is opened at the bottom of one end of the front side of the loading bin, the buffer pad is slidably inserted in the storage groove, a damping groove is opened in the middle of the top end of the buffer pad, the bottom of the damping rod is slidably inserted in the damping groove, and the top end of the damping rod is fixedly connected to the inner wall of the top end of the storage groove.

[0017] Preferably, the inner walls of the front and back sides of the storage slide groove are provided with limiting slide grooves, the front and back sides of the buffer pad are fixedly connected with limiting sliders, and the plurality of limiting sliders are respectively slidably inserted and connected in the plurality of limiting slide grooves.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model utilizes a buffer mechanism arranged at the bottom of the loading bin to buffer when the loading bin falls and contacts the motorcycle body. First, the buffer pad contacts the top of the motorcycle body. After being compressed, the shock-absorbing spring is used to buffer the extrusion process. At the same time, the damping rod cooperates with the shock-absorbing spring to reduce the buffer force, thereby ensuring that the entire buffer mechanism can operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the unloading state of the freight vehicle of the utility model.

[0021] Figure 2 It is a schematic diagram of the cargo transporting state of the freight vehicle of the utility model.

[0022] Figure 3 It is a cross-sectional view of the structural connection between the loading bin and the buffer mechanism of the utility model.

[0023] In the figure: 1. motorcycle body; 2. seat unit; 3. loading compartment; 301. articulated seat; 302. storage slide; 303. limiting slide; 4. rotating support rod; 5. support plate; 6. diagonal support plate; 7. lifting hydraulic rod; 8. buffer pad; 801. damping slide; 802. limiting slider; 9. damping rod; 10. shock-absorbing spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-3 The dump truck shown comprises a motorcycle body 1, and a seat cushion unit 2 for a rider to sit on is provided at one end of the top front of the motorcycle body 1.

[0026] It should be noted that the seat cushion unit 2 is composed of a seat cushion, a backrest and an armrest, and the seat cushion is separated from the back part of the motorcycle body 1 by the backrest, so that the driver of the truck can lean on it during the movement.

[0027] A cargo compartment 3 is provided at the top of the motorcycle body 1 and at one end close to the back, and a lifting mechanism for lifting the cargo compartment 3 is provided between the middle of the motorcycle body 1 and the bottom of the cargo compartment 3 .

[0028] It should be noted that in order to realize the self-unloading function after the loading bin 3 is lifted, a hinged cover is provided on the back of the loading bin 3, and the hinged cover can be opened by a hydraulic strut. When the loading bin 3 is tilted regularly by the jacking mechanism, its back is at a low point, and the hinged cover opens. Under the action of gravity, the goods in the loading bin 3 are self-unloaded.

[0029] Specifically, the lifting mechanism includes:

[0030] A lifting hydraulic rod 7 is inserted and connected to the middle part of the motorcycle body 1. A hole is provided at the bottom of the motorcycle body 1 to ensure that the output end of the lifting hydraulic rod 7 can pass through the motorcycle body 1 and connect to the bottom of the cargo compartment 3;

[0031] The middle part of the bottom end of the motorcycle body 1 is fixedly connected with an inclined support plate 6, and the bottom of the lifting hydraulic rod 7 is fixedly connected with the top end of the inclined support plate 6;

[0032] The hinged seat 301 is arranged in the middle of the bottom end of the loading bin 3 , and the top of the lifting hydraulic rod 7 is hinged to the bottom of the hinged seat 301 .

[0033] It should be noted that, through the design of the diagonal support plate 6, the lifting hydraulic rod 7 can be designed to be tilted, so that when the lifting hydraulic rod 7 is driven to output, its output end can output obliquely, and at the same time, in conjunction with the rotation of the articulated seat 301, the loading bin 3 is lifted and tilted by the lifting hydraulic rod 7 under the jacking action.

[0034] A hinged part is arranged between the bottom of the cargo compartment 3 and one end of the back side of the motorcycle body 1 .

[0035] Specifically, the hinge includes:

[0036] A rotating support rod 4, wherein a plurality of rotating support rods 4 are respectively arranged on both sides of one end of the back side of the loading bin 3;

[0037] The support plates 5 are fixedly connected to both sides of one end of the back of the motorcycle body 1 , and the ends of the plurality of rotating struts 4 away from the loading bin 3 are rotatably and interlacedly connected to the tops of the plurality of supporting plates 5 .

[0038] It should be noted that, by cooperating between the rotating support rod 4 and the support plate 5, the loading bin 3 is subject to traction restriction, so that under the action of the top support, the loading bin 3 can rotate and flip around with the connection point between the rotating support rod 4 and the support plate 5 as the rotation center.

[0039] A buffer mechanism is provided at the bottom of the loading bin 3 and at one end close to the front, and the buffer mechanism includes:

[0040] A buffer block 8 is slidably connected to the bottom of the loading bin 3;

[0041] The damping rod 9 is inserted and connected to the middle part of the buffer pad 8, and the outer wall of the damping rod 9 is sleeved with a shock absorbing spring 10.

[0042] Specifically, a storage groove 302 is opened at the bottom of one end of the front side of the loading bin 3, the buffer pad 8 is slidably inserted and connected in the storage groove 302, a damping groove 801 is opened in the middle of the top end of the buffer pad 8, the bottom of the damping rod 9 is slidably inserted and connected in the damping groove 801, and the top end of the damping rod 9 is fixedly connected to the inner wall of the top end of the storage groove 302.

[0043] Furthermore, the inner walls of the front and back sides of the storage slide groove 302 are provided with limiting slide grooves 303, and the front and back sides of the buffer pad block 8 are fixedly connected with limiting sliders 802, and multiple limiting sliders 802 are respectively slidably inserted and connected in multiple limiting slide grooves 303.

[0044] It should be noted that the bottom of the buffer block 8 is set in an arc shape, so that when the loading bin 3 rotates close to the motorcycle body 1, the buffer block 8 first contacts the motorcycle body 1 to support the loading bin 3 when it falls. At the same time, under the downward pressure, the buffer block 8 moves toward the storage slot 302, and the outer wall of the damping rod 9 and the inner wall of the damping slot 801 slide and rub against each other, reducing the downward force of the buffer block 8. At the same time, when the buffer block 8 slides in the storage slot 302, it will squeeze the shock-absorbing spring 10, and the shock-absorbing spring 10 buffers the falling process by supporting it.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dump truck, comprising a motorcycle body (1), characterized in that: A loading bin (3) is arranged at the top of the motorcycle body (1) and at one end close to the back, a lifting mechanism for lifting the loading bin (3) is arranged between the middle of the motorcycle body (1) and the bottom of the loading bin (3), a hinge is arranged between the bottom of the loading bin (3) and one end of the back of the motorcycle body (1), a buffer mechanism is arranged at the bottom of the loading bin (3) and at one end close to the front, and the buffer mechanism comprises: A buffer block (8), the buffer block (8) being slidably inserted and connected to the bottom of the loading bin (3); A damping rod (9) is inserted and connected to the middle part of the buffer pad (8), and a shock absorbing spring (10) is sleeved on the outer wall of the damping rod (9).

2. The dump truck according to claim 1, characterized in that: A seat cushion unit (2) for a rider to sit on is provided at one end of the top front side of the motorcycle body (1).

3. The dump truck according to claim 1, characterized in that: The hinge comprises: A rotating support rod (4), wherein a plurality of the rotating support rods (4) are respectively arranged on both sides of one end of the back side of the loading bin (3); A plurality of support plates (5) are respectively fixedly connected to two sides of one end of the back side of the motorcycle body (1); and one end of the plurality of rotating support rods (4) away from the loading bin (3) is respectively rotatably and interlacedly connected to the top of the plurality of support plates (5).

4. The dump truck according to claim 1, characterized in that: The lifting mechanism comprises: A lifting hydraulic rod (7), wherein the lifting hydraulic rod (7) is inserted and connected to the middle part of the motorcycle body (1); An articulated seat (301), wherein the articulated seat (301) is arranged in the middle of the bottom end of the loading bin (3), and the top of the lifting hydraulic rod (7) is hinged to the bottom of the articulated seat (301).

5. The dump truck according to claim 4, characterized in that: A diagonal support plate (6) is fixedly connected to the middle of the bottom end of the motorcycle body (1), and the bottom of the lifting hydraulic rod (7) is fixedly connected to the top end of the diagonal support plate (6).

6. The dump truck according to claim 1, characterized in that: A storage slot (302) is provided at the bottom of one end of the front side of the loading bin (3), the buffer pad (8) is slidably inserted and connected in the storage slot (302), a damping slot (801) is provided in the middle of the top end of the buffer pad (8), the bottom of the damping rod (9) is slidably inserted and connected in the damping slot (801), and the top end of the damping rod (9) is fixedly connected to the inner wall of the top end of the storage slot (302).

7. The dump truck according to claim 6, characterized in that: The inner walls of the front and back sides of the storage slide groove (302) are both provided with limiting slide grooves (303), and the front and back sides of the buffer pad (8) are both fixedly connected with limiting sliders (802), and a plurality of limiting sliders (802) are respectively slidably inserted and connected in a plurality of limiting slide grooves (303).

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