JP5485031B2 - Dump container rear gate - Google Patents

Description

  The present invention relates to a rear gate of a dump container, and more particularly to a rear gate of a dump container that can be opened automatically and without the need for power.

  In general, trucks such as sand trucks, cargo trucks or cleaning trucks are usually equipped with a dump container for easy unloading.

  Referring to FIG. 1, FIG. 1 shows a conventional truck container. As shown, the container 110 is provided with a rear gate 120. When it is desired to unload the cargo in the container 110 at once, the lifting device 130 is used to tilt the container 110. The rear gate 120 that is pivotally connected to the container 110 opens when the container 110 is tilted. The greater the container 110 is tilted, the more the rear gate 120 opens. At this time, the load in the container 110 slides down and is unloaded from the container 110 at a time. The container 110 is further provided with a locking device that locks the rear gate 120 to prevent the rear gate 120 from opening when the container moves (not shown).

  However, the rear gate 120 cannot be opened widely. There is still a tendency for the load to impact the rear gate 120 if the container 110 carries large loads and wants to unload them at once. This will damage the rear gate 120.

  In addition, the locking device for the rear gate 120 operates pneumatically. If the vehicle carrying the container 110 does not have power, the driver must get out of the driving vehicle and assemble a pneumatic tube in order to activate the rear gate 120. If the driver wants to separate the vehicle carrying the container 110 from the driving vehicle, the driver must get out of the driving vehicle again and disassemble the pneumatic tube. This is very inconvenient and dangerous for the driver.

  Referring to FIG. 2, FIG. 2 shows a conventional truck container for transporting waste steel in a steel mill. The container 210 is provided with a rear gate 220. The rear gate 220 is controlled by Y-shaped rods 260 arranged on both sides of the container 210, respectively. One end of the Y-shaped rod 260 is connected to one end of the chain 270. The other end of the chain 270 is connected to the chassis 280. A branch point 262 of the Y-shaped rod 260 is rotatably connected to the side surface of the container 210. When the container 210 is raised, the chain 270 prevents the Y-shaped rod 260 from rotating clockwise and opens the rear gate 220. When the container 210 is lowered, the Y-shaped rod 260 rotates clockwise by the weight of the rear gate 220 to close the rear gate 220.

  However, if it is desired to unload the cargo in the container 210 at one time, the driver must exit the driving vehicle and connect the chain 270 to the chassis 280 to open the rear gate 220. This is very inconvenient and dangerous for the driver.

  Referring to FIG. 3, Taiwan Patent No. M335426 discloses the structure of the rear gate of the container. Two automatic lifting devices 340 are respectively arranged on both sides of the rear portion of the container 310. The rear gate 320 is pivotally connected to the tip of the lifting device 340. The lifting device 340 is used to raise the rear gate 320. When the container 310 is raised by the lifting device 330, the rear gate 320 is released from the container 310. Further, a pressing device 350 is disposed below the container 310 and in the vicinity of the rear portion of the container 310. The pressing device 350 uses the power source 352 to drive the crank 354 and press the rear gate 320. In this way, the rear gate 320 can be tightly closed to the container 310 to prevent leakage of dirty water in the container 310. The rear gate 320 can be opened only when the crank 354 is opened.

  However, the rear gate 320 and the pressing device 350 require power for operation. If the vehicle carrying the container 310 has no power, the driver must get out of the driving vehicle and assemble a pneumatic tube to activate the rear gate 320. If the driver wants to separate the vehicle carrying the container 310 from the driving vehicle, the driver must get out of the driving vehicle again and disassemble the pneumatic tube. This is very inconvenient and dangerous for the driver.

  Further, the rear gate 320 can be opened by the lifting device 340, but the rear gate 320 remains perpendicular to the ground. If the container 310 carries large loads such as waste steel or cement blocks and wants to unload them all at once, there is still a tendency for the large loads to impact the rear gate 320. As a result, the rear gate 320 and the lifting device 340 are damaged.

Taiwan Exclusive M335426

  Therefore, there is a need to provide a solution to solve the above problem.

  The present invention provides a structure for the rear gate of a dump container. The structure includes a rear gate located at the rear end of the container and pivotally connected to the two side walls, and two weight bodies connected to the rear gate. When the container is tilted, the weight body Move to pull the rear gate and rotate the rear gate to open.

  According to the present invention, no power is required to control the opening and closing of the rear gate. Thus, the driver does not need to get off the driving vehicle to open the rear gate.

  Furthermore, the container of the present invention can be used to transport waste steel, cement blocks, etc. in a steelmaking or mining factory. The opening of the rear gate relative to the container can be controlled by adjusting the position of the bearing. This prevents the load in the container from impacting the rear gate when the container is tilted to unload the load at once.

  Also, when compared to conventional containers that must use a power source to lock the rear gate, the locking device of the present invention can reliably lock the rear gate without the need for a power source.

  The above as well as additional objects, features, and advantages of the present invention will become more readily apparent from the following detailed description, taken in conjunction with the accompanying drawings.

A conventional truck container is shown. 1 shows a conventional truck container for transporting waste steel in a steel mill. Figure 2 shows the conventional structure of the rear gate of a container. 2 shows a structure of a rear gate of a dump container according to the present invention. It is a perspective view of the structure of the rear gate of the dump container according to the present invention. FIG. 5 is a locally enlarged view of FIG. 4. 2 shows the structure of a rear gate of a dump container according to the present invention with the container tilted and the rear gate open.

  Referring to FIGS. 4, 5, and 7, the structure of the rear gate of the dump container according to the present invention includes a rear gate 420 disposed at the rear end of the container 410. The rear gate 420 is pivotally connected to the two side walls 412 of the container 410 and can be opened by rotating. Two rods 460 are respectively disposed on the side walls 412. An intermediate portion of the rod 460 is rotatably connected to the upper portion of the side wall 412. One end of the rod 460 is connected to the rear gate 420 and the other end is connected to a steel rope 470. Referring to FIG. 6, two bearings 442 and one axle 444 are disposed at the top of each side wall 412 to control the opening of the rear gate 420 relative to the container 410 when the container 410 is tilted up. ing. The axle 444 can rotate relative to the bearing 442. The position of the bearing 442 can be adjusted. The axle 444 passes through a round hole 462 in the middle portion of the rod 460. Further, a protective cover 446 is disposed above the bearing 442 to prevent a load in the container 410 from damaging the bearing 442.

  A guide slot 450 is disposed below each side wall 412. A weight body 480 is disposed in each guide slot 450 and can slide along each guide slot 450. The weight body 480 is connected to one end of the steel rope 470. The total weight of the two weight bodies 480 is larger than the weight of the rear gate 420. In addition, a plurality of pulleys 490 are disposed on each side wall 412. A steel rope 470 is hung on these pulleys 490.

  In order to prevent the rear gate 420 from being opened due to the impact of the load during the movement of the container 410 and dropping the load in the container 410, two locking devices 430 are respectively disposed at the rear of the side wall 412. Each locking device 430 includes a hook 432 and a balance weight 434. The hook 432 is pivotally connected to the side wall 412 and can be hooked to the opening 422 of the rear gate 420 so that the rear gate 420 does not open. The hook 432 can still be positioned horizontally with the aid of the balance weight 434 even when the container 410 is tilted.

  According to the present invention, even when the container 410 is raised and tilted, the hook 432 is still positioned horizontally with the aid of the balance weight 434 and gradually separates from the rear gate 420. When the container 410 is further tilted (eg, up to 10-15 °), the hook 432 completely separates from the rear gate 420. As the container 410 continues to be tilted (eg, up to 25-30 °), the weight bodies 480 on the two side walls 412 begin to slide along the guide slot 450. In order to make the weight body 480 slide more easily, a plurality of wheels 482 are arranged at four corners of the bottom of the weight body 480. When the weight body 480 slides, the steel rope 470 is thereby pulled. Next, the rod 460 is pulled by the steel rope 470 and rotates around the rotation position. Since the rod 460 is securely connected to the rear gate 420, when the rod 460 is rotated by pulling the steel rope 470, the rear gate 420 is gradually opened. The greater the container 410 is tilted, the more the rear gate 420 opens. When the weight body 480 comes into contact with the stopper 452, the movement of the weight body 480 stops. At this time, the opening of the rear gate 420 ends. Thereafter, when the cargo in the container 410 is unloaded at once and the container 410 is lowered, the rear gate 420 rotates downward due to its own weight. Next, the rod 460 and the steel rope 470 are driven by the rear gate 420 and the weight body 480 is pulled back in place. At this time, the hook 432 is hooked to the rear gate 420 so that the rear gate 420 cannot be opened.

  In accordance with the present invention, a proof mass 438 is disposed on each side wall 412 to easily separate the hook 432 from the rear gate 420 when the container 410 is tilted. When the container 410 is tilted, the proof mass 438 slides along the guide slot 450. The protruding member 436 on the proof mass 438 collides with the balance weight 434 of the locking device 430 to rotate the hook 432 and separate it from the rear gate 420. Further, when the load in the container 410 is lowered to the outside at once and the container 410 is lowered, the proof mass 438 is separated from the balance weight 434. At this time, the hook 432 is hooked on the rear gate 420.

  According to the present invention, no power is required to control the opening and closing of the rear gate. Thus, the driver does not need to get off the driving vehicle to open the rear gate.

  Furthermore, the container of the present invention can be used to transport waste steel, cement blocks, etc. in a steelmaking or mining factory. The opening of the rear gate relative to the container can be controlled by adjusting the position of the bearing. This can prevent the load in the container from colliding with the rear gate when the container is tilted to unload the load at once.

  Also, when compared to conventional containers that must use a power source to lock the rear gate, the locking device of the present invention can reliably lock the rear gate without the need for a power source.

  While preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions may be made without departing from the scope and spirit of the invention as disclosed in the appended claims. It will be appreciated that substitutions are possible.

Claims (10)

A structure of a rear gate of a dump container having two side walls,
A rear gate located at the rear end of the container and pivotally connected to the two side walls;
Two weights connected to the rear gate;
Including
When the container is tilted, the weight body moves so as to pull the rear gate, and the rear gate is rotated to open. Two guide slots each disposed on the side wall and having the weight body disposed therein;
Two rods each having an intermediate portion, a first end and a second end, the intermediate portion of the rod being pivotally connected to the side wall, respectively, and the rod of the rod A rod having a second end connected to the rear gate;
Two ropes respectively connecting the weight body to the first end of the rod;
Further including
When the weight body slides in the guide slot due to the inclination of the container, the rod is rotated by the weight body via the rope and rotated, and the rear gate is rotated and released by the rod. Item 4. The structure of the rear gate according to Item 1.   The structure of the rear gate according to claim 2, further comprising a plurality of wheels disposed at a bottom of the weight body. The structure of the rear gate according to claim 2, further comprising a plurality of pulleys arranged on the side wall, and wherein the rope is hung on the pulley. Four bearings disposed on top of the side wall;
Two axles disposed on top of the side wall;
Further including
The rear portion according to claim 2, wherein the axles are each rotated by two bearings, the intermediate portion of the rod is pivotally connected to the axle, and the rod is rotatable by the axle. The structure of the gate.   The structure of the rear gate according to claim 5, further comprising two protective covers disposed above the bearing.   The structure of the rear gate according to claim 2, wherein a total weight of the weight body is larger than a weight of the rear gate. The rear gate has two openings, and is further configured to lock to the opening of the rear gate, and further includes two locking devices each pivotally connected to the side wall. Rear gate structure as described in. Each of the locking devices
A hook configured to be hooked to the opening of the rear gate;
A balance weight connected to the hook, the balance weight configured to position the hook horizontally;
9. The structure of a rear gate according to claim 8, comprising: Further comprising two proof masses each disposed on the side wall;
10. The rear gate of claim 9, wherein the proof mass is configured to slide and collide with the balance weight when the container is tilted and the hook rotates to separate from the rear gate. Construction.

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