Box semi-trailer and its compartment

Abstract

The present invention provides a box-type semi-trailer and a carriage thereof, the carriage comprising a carriage body and a cargo unloading device arranged at the bottom of at least one side of the carriage body. The cargo unloading device comprises a box body, a baffle and a torsion spring. The box body is funnel-shaped, the top of which is connected to the bottom surface of the carriage body and communicated with the interior of the carriage body, and a cargo unloading outlet is arranged at the lower part of the box body. The baffle is arranged corresponding to the cargo unloading outlet, and the upper end of the baffle is hinged to the box body for shielding the cargo unloading outlet. The torsion spring is arranged at the inner side of the lower part of the box body and close to the cargo unloading outlet; when the baffle is turned from the inside of the box body to the outside to the cargo unloading outlet position, the torsion spring abuts against the baffle, and the torsion spring can stop the baffle. The baffle in the present invention strengthens the closure of the cargo unloading outlet and can buffer the bulk cargo from flowing out of the cargo unloading outlet in the first time. The baffle can bypass the torsion spring when it turns inward, and can abut against the torsion spring due to the deadweight of the baffle, and the elastic force of the torsion spring can stop the baffle from turning outward, which is convenient to operate.

Description

Technical Field

[0001] The invention relates to the field of automobile transportation, and in particular to a box-type semitrailer and a carriage thereof for transporting bulk grain. Background Art

[0002] At present, the main vehicles used to transport grain and other crops in China include warehouse semi-trailers and bulk grain box semi-trailers, which mainly transport bagged and bulk grain.

[0003] Usually, a transport vehicle has a discharge device at the bottom of the carriage to allow the bulk cargo to flow out directly from the discharge device. However, in actual use, due to the poor sealing performance of the discharge device, the cargo is likely to leak out of the discharge device, resulting in waste. In addition, the cargo in the carriage will flow out immediately when the discharge door is opened, causing the weight of the grain to be fully loaded on the discharge door, which is very inconvenient to operate. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a box-type semi-trailer and a box thereof, so as to solve the problems of poor sealing and inconvenient operation of the unloading device in the prior art.

[0005] In view of the above technical problems, the present invention proposes a box-type semi-trailer compartment for carrying goods, comprising: a compartment body and a cargo unloading device arranged at the bottom of at least one side of the compartment body; the cargo unloading device comprises: a box body, a baffle and a torsion spring. The box body is funnel-shaped, the top of the box body is connected to the bottom surface of the compartment body and communicated with the interior of the compartment body, and the lower part of the box body is provided with a cargo unloading outlet; the baffle is arranged corresponding to the cargo unloading outlet, and the upper end of the baffle is hinged to the box body for shielding the cargo unloading outlet; the torsion spring is arranged on the inner side of the lower part of the box body and close to the cargo unloading outlet; when the baffle flips from the inside of the box body to the outside to the cargo unloading outlet position, the torsion spring abuts against the baffle, and the torsion spring can stop the baffle.

[0006] In a preferred embodiment, the torsion spring includes a spring body and two protruding ends, one of which is fixedly connected to the inner wall of the box body, and the other is used to abut against and stop the baffle.

[0007] In a preferred embodiment, the unloading device further comprises a unloading door, which is arranged corresponding to the unloading outlet and is located on the outside of the box body to close the unloading outlet.

[0008] In a preferred embodiment, the lower part of the discharge door is hinged to the lower part of the box body, and the discharge door can be closed and opened by flipping upward or downward.

[0009] In a preferred embodiment, the unloading device also includes a locking structure for fixing and locking the unloading door, and the locking mechanism includes: a hook; the hook is movably connected to the bottom of the carriage body, and the unloading door is provided with a pin shaft that cooperates with the hook; when the unloading door is closed, the hook can cooperate with the pin shaft to lock the unloading door.

[0010] In a preferred embodiment, an outer edge of the unloading outlet of the box body is provided with an outer edge structure, and the outer edge structure includes a plurality of plates spliced ​​to each other.

[0011] In the preferred embodiment, the unloading door is in the shape of a dustpan, comprising: a door main board and two door side panels erected on the surface of the door main board and arranged opposite to each other; one side edge of the door main board is hinged to the lower part of the box body, and the two door side panels are arranged at both ends of the side edge; when the unloading door is closed, the door main board can seal the unloading outlet, and the outer edge structure is accommodated between the two door side panels.

[0012] In a preferred embodiment, a plurality of groups of the unloading devices are provided at the bottom of a side of the carriage body, and each group includes three unloading devices, which are distributed along the length direction of the carriage body.

[0013] In a preferred embodiment, a flow guide frame corresponding to the unloading device is provided in the carriage body, and the flow guide frame has a slope so that the bulk cargo in the carriage body can flow into the unloading device through the flow guide frame.

[0014] The present invention also provides a box-type semitrailer for transporting bulk grain, comprising a frame and the box placed on the frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: a baffle is arranged in the unloading device of the present invention, which not only plays the role of strengthening the closure of the unloading outlet, but also can prevent the bulk cargo in the compartment from flowing out of the unloading outlet at the first time during unloading, thus playing a buffering role. At the same time, after unloading is completed, the baffle is pushed into the box body, and the baffle can bypass the elastic force of the torsion spring and flip into the box body; and after the thrust is withdrawn, the baffle abuts against the torsion spring, and the elastic force of the torsion spring can stop the baffle from flipping outward, playing the role of locking it in this position, which is convenient and quick to operate, greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial structural schematic diagram of the box-type semi-trailer of this embodiment.

[0017] Figure 2 It is a structural schematic diagram of the van-type semi-trailer compartment of this embodiment.

[0018] Figure 3 It is a schematic diagram of the structure of the unloading device at the bottom of one side of the carriage body of this embodiment.

[0019] Figure 4 It is a front structural schematic diagram of the unloading device of this embodiment.

[0020] Figure 5 It is a schematic diagram of the side structure of the unloading device of this embodiment.

[0021] Figure 6 yes Figure 5 A partial enlarged view of part A.

[0022] Figure 7 Schematic diagram of the structure of the torsion spring of this embodiment.

[0023] Figure 8 It is a schematic structural diagram of the torsion spring of this embodiment at another angle.

[0024] Fig. 9 It is a structural schematic diagram of the unloading state of the unloading device of this embodiment.

[0025] Fig.10 It is a schematic structural diagram of the baffle and the torsion spring in this embodiment.

[0026] Fig.11 It is a schematic diagram of the structure of the discharge door in the closed state of this embodiment.

[0027] Fig.12 It is a structural schematic diagram of the locking state of the discharge door of this embodiment.

[0028] Fig.13 It is another structural schematic diagram of the locking state of the discharge door of this embodiment.

[0029] The reference numerals in the accompanying drawings are as follows: 2. frame; 3. carriage; 4. carriage body; 5. unloading device; 501. connecting rod; 51. box body; 52. outer edge structure; 521. side panel; 522. top panel; 523. unloading outlet; 53. baffle; 531. baffle body; 532. side baffle; 54. torsion spring; 541. spring body; 542. extension end; 543. extension end; 544. bolt; 55. unloading door; 551. door main board; 552. door side panel; 553. pin shaft; 554. connecting shaft; 56. locking mechanism; 561. hook; 562. rotating shaft; 563. mounting seat; 6. guide frame; 61. slope. DETAILED DESCRIPTION

[0030] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 and Figure 3 As shown, the box-type semi-trailer of this embodiment is used to transport bagged goods or bulk goods, especially bulk grain, and the box-type semi-trailer includes: a frame 2 and a compartment 3 placed on the frame 2. In order to clearly describe the structure of the box-type semi-trailer, the longitudinal direction involved in this embodiment is the driving direction of the vehicle body, the transverse direction is the width direction of the vehicle body, and the outer side is the direction toward the left and right outer sides of the vehicle body.

[0033] The carriage 3 is used to carry bulk grain, and includes: a carriage body 4 and unloading devices 5 arranged at the bottom of two sides of the carriage body 4. In this embodiment, fifteen unloading devices 5 are arranged at the bottom of each side, and they are distributed along the length direction of the carriage body 4. In this embodiment, three unloading devices 5 form a group, and there are five groups in total; the three unloading devices 5 in each group are connected to each other by a connecting rod 501, and can be opened or closed at the same time by a handle operation (such as Figure 3 as shown).

[0034] In actual use, the unloading device 5 can be only arranged at the bottom of one side of the carriage body 4, and the number of the unloading devices 5 can be determined according to the length of the carriage body 4 and the predetermined unloading speed, which is not limited here.

[0035] See also Figures 4 to 13 The unloading device 5 includes: a box body 51, an outer edge structure 52, a baffle 53, a torsion spring 54, a unloading door 55 and a locking mechanism 56.

[0036] The box body 51 is extended along the vehicle body direction, and its transverse section is a funnel shape that is wide at the top and narrow at the bottom. The top of the box body 51 is connected to the bottom surface of the vehicle body 4, and is connected to the interior of the vehicle body 4 through this position. A discharge outlet 523 is provided on the outer side surface of the lower part of the box body 51.

[0037] The outer edge structure 52 is arranged on the outer side of the box body 51 and is arranged corresponding to the outer edge of the unloading outlet 523 of the box body 51. The outer edge structure 52 includes two side panels 521 and a top panel 522, both of which are erected on the edge of the unloading outlet 523 of the box body 51. The two side panels 521 are arranged opposite to each other and extend upward along the bottom of the box body 51, roughly in an inverted triangle shape. The top panel 522 is connected between the two side panels 521 and is connected to the upper edges of the two side panels 521. The two side panels 521 and the top panel 522, as well as the bottom edge of the box body 51, form an opening structure, that is, constitute the unloading outlet 523 of the unloading device 5, so as to prevent the scattered grain from flying around during unloading, and play a guiding role.

[0038] In other embodiments, the outer edge structure 52 may be omitted.

[0039] The baffle 53 is arranged corresponding to the unloading outlet 523. The baffle 53 includes a baffle body 531 and two side baffles 532. The upper end of the baffle body 531 is hinged to the outer surface of the box body 51 to block the unloading outlet 523; the two side baffles 532 are arranged on both sides of the baffle body 531 and extend to the inside of the box body 51. The baffle 53 can be turned inside and outside the box body 51. Among them, when the baffle 53 is turned to the lowest point, the distance between its lower edge and the inner surface of the lower part of the box body 51 is L.

[0040] The torsion spring 54 is arranged on the inner side of the lower part of the box body 51 and close to the unloading outlet 523. In this embodiment, the torsion spring 54 includes a spring body 541 and two protruding ends 542 and 543, wherein the protruding end 542 is fixedly connected to the inner wall of the box body 51, and the other protruding end 543 is used to abut and stop the baffle 53. Specifically, the position M1 and the position M2 on the protruding end 542 are two turns, and the bolt 544 passes through the two turns of the position M1 and the position M2 to fix the torsion spring 54 to the inner wall of the box body 51. This fixing method prevents the torsion spring 54 from shaking. Among them, the height of the spring body 541 is less than the distance L to prevent the baffle 53 from interfering with the spring body 541 of the torsion spring 54 during the flipping process.

[0041] When the baffle 53 is turned from the inside of the box body 51 to the outside to the position of the unloading outlet 523, the extended end 543 of the torsion spring 54 abuts against the baffle 53, and the torsion spring 54 can stop the baffle 53. The baffle 53 can temporarily block and close the inner side of the unloading outlet 523 by cooperating with the torsion spring 54, and temporarily lock the baffle 53 at this position.

[0042] It should be noted that the elastic force of the torsion spring 54 in this embodiment is limited. In the temporary locked state, when a predetermined external force (such as the weight of the cargo or the shaking of the carriage) is applied to the baffle 53, the baffle 53 can overcome the elastic force of the torsion spring 54 and flip outward.

[0043] The discharge door 55 is arranged corresponding to the discharge outlet 523 and is located on the outer side of the outer edge structure 52 to close the discharge outlet 523. In this embodiment, the discharge door 55 is dustpan-shaped. The discharge door 55 includes: a door main board 551 and two door side panels 552 arranged upright on the surface of the door main board 551 and arranged opposite to each other. One side of the door main board 551 is hinged to the lower part of the box body 51 through a connecting shaft 554, and the closing and opening of the discharge door 55 are realized by turning up or down. The two door side panels 552 are arranged at both ends of the side of the door main board 551, and the shape of the two door side panels 552 is roughly triangular. Further, a pin shaft 553 is provided on the outer surface of the two door side panels 552. When the discharge door 55 is turned up and in a closed state, the door main plate 551 can seal the discharge outlet 523, the two door side plates 552 overlap with the side plates 521 of the outer edge structure 52, and the outer edge structure 52 is accommodated between the two door side plates 552, and the pin shaft 553 on the door side plate 552 is located near the bottom of the carriage body 4. When the baffle 53 bypasses the torsion spring 54 due to external force and turns downward, it can contact the discharge door 55.

[0044] The locking mechanism 56 is disposed at the bottom of the carriage body 4, and includes a hook 561, a rotating shaft 562, and a mounting seat 563. The mounting seat 563 is fixed to the bottom of the carriage body 4, the rotating shaft 562 is disposed on the mounting seat 563, and the hook 561 is movably connected to the bottom of the carriage body 4 through the rotating shaft 562. When the discharge door 55 is closed, the hook 561 can cooperate with the rotating shaft 562 on the discharge door 55 to lock the discharge door 55.

[0045] In actual use, the locking mechanism is not limited to the structure of the present embodiment, nor is it limited to the installation position of the present embodiment. When the discharge door 55 is in a closed state, the discharge door 55 can be fixed and locked by the locking mechanism.

[0046] Please refer to Figure 2 Preferably, a guide frame 6 is provided in the carriage body 4, and the guide frame 6 is located in the middle of the bottom of the carriage body 4 and is arranged corresponding to the unloading device 5. The guide frame 6 has a slope 61 toward the left and right sides of the vehicle body, so that the bulk cargo in the carriage body 4 can flow into the unloading device 5 through the slope 61 on the guide frame 6, effectively improving the unloading speed, and making the bulk grain in the carriage body 4 unloaded cleanly without residue.

[0047] The working principle of the unloading device 5 of the van-type semi-trailer of this embodiment is as follows: the cooperation between the unloading door 55 and the locking mechanism 56 is released, the unloading door 55 is opened, and the baffle 53 sags and turns outward under the action of the loose grain in the carriage body 4 and forms an opening with the unloading door 55, and the grain flows out (such as Fig. 9After the grain is unloaded, the baffle 53 is pushed to rotate into the carriage body 4 and bypass the torsion spring 54. After the thrust is withdrawn, the baffle 53 is stopped by the torsion spring 54 to prevent the baffle 53 from interfering with the unloading door 55 (as shown in FIG. Fig.10 Then, the discharge door 55 is flipped upward, and the hook 561 of the locking mechanism 56 hooks the pin 553 on the discharge door 55 (as shown in FIG. Fig.11 and Fig.12 At this time, the baffle 53 is still stopped by the torsion spring 54 and cannot fall down and contact the discharge door 55. However, the elastic force of the torsion spring 54 is limited. When the semi-trailer vibrates, such as when driving, passing through a speed bump, or loading grain, the baffle 53 can overcome the elastic force of the torsion spring 54 under the action of its own weight or the gravity of the cargo and fall vertically until it contacts the discharge door 55 (as shown in the figure). Fig.13 As shown in the figure, the normal use state of the baffle 53 before the vehicle is loaded with grain is reached, that is, the baffle 53 and the discharge door 55 together with the hook 561 and the pin 553 form a lever mechanical structure. The formation of the lever mechanical structure is specifically as follows: the loose grain in the carriage body 4 mainly acts on the baffle 53, and acts on the discharge door 55 through the contact point (line) between the baffle 53 and the discharge door 55; and the torque formed by the distance between the contact point (line) and the connecting shaft 554 is significantly different from the torque formed by the hook 561 and the connecting shaft 554, thereby realizing the labor-saving effect of the hook 561 and facilitating the opening and closing of the hook 561. For example, if the ratio of the distance between the contact point (line) between the baffle 53 and the discharge door 55 and the distance between the hook 561 and the connection shaft 554 is 1:10, it means that the force of the hook 561 is 10% of the force between the contact point (line) between the baffle 53 and the discharge door 55, that is, the purpose of saving 90% of the force of the hook 561 is achieved, which not only reduces the force on the hook 561, but also reduces the force on the discharge door 55, and the operation of the hook 561 is easier and simpler. In addition, in this embodiment, the discharge door 55 and the baffle 53 have the function of double-closing the discharge outlet 523. The discharge door 55 can be linked with the baffle 53 or rotated independently.

[0048] The baffle plate is arranged in the unloading device of the present invention, which not only plays the role of strengthening the closure of the unloading outlet, but also can prevent the bulk cargo in the carriage from flowing out of the unloading outlet at the first time during unloading, thus playing a buffering role. At the same time, the torsion spring can play the role of temporarily locking the baffle plate during the closing of the unloading door, which is convenient and quick to operate, improves safety and work efficiency, and enhances the practicality of the baffle plate.

[0049] Although the present invention has been described with reference to the above typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be implemented in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the claims or their equivalents should be covered by the appended claims.

Claims

1. A box-type semi-trailer compartment for carrying goods, characterized in that: include: A carriage body and a cargo unloading device disposed at the bottom of at least one side of the carriage body; The unloading device comprises: The box body is funnel-shaped, the top of the box body is connected to the bottom surface of the carriage body and communicated with the interior of the carriage body, and the lower part of the box body is provided with a discharge outlet; a baffle, arranged corresponding to the unloading outlet, the upper end of the baffle being hinged to the box body, and the baffle being able to rotate toward or away from the unloading outlet to open or cover the unloading outlet; A torsion spring is arranged inside the lower part of the box body and close to the unloading outlet; When the baffle plate flips from the inside of the box body to the outside to the unloading outlet position, the torsion spring abuts against the baffle plate, and the torsion spring can stop the baffle plate. The torsion spring includes a spring body and two protruding ends, wherein the first protruding end is fixedly connected to the inner wall of the box body, and the second protruding end protrudes toward the unloading outlet, and the second protruding end is located on the rotation path of the lower end of the baffle plate; A locking mechanism is arranged at the bottom of the carriage body; A discharge door, which is arranged corresponding to the discharge outlet and is located outside the box body, one end of the discharge door is hinged to the lower part of the box body, and the other end of the discharge door is fastened to the locking mechanism; When the baffle rotates from the outside to the inside of the box body, the inner side surface of the baffle presses the second extension end, causing the second extension end to rotate and deform in the positive direction, and the baffle bypasses the second extension end. After the second extension end recovers its deformation, the second extension end abuts against the outer side surface of the baffle and stops the baffle; When the baffle rotates from the inside to the outside of the box, the outer side surface of the baffle presses the second extending end, causing the second extending end to rotate and deform in the opposite direction, and the baffle bypasses the second extending end, and the lower end of the baffle abuts against the unloading door; the cooperation between the unloading door and the locking mechanism is released, the unloading door opens, and the baffle continues to rotate outward to form an opening with the unloading door.

2. The box-type semitrailer compartment according to claim 1, characterized in that: The lower part of the discharge door is hinged to the lower part of the box body, and the closing and opening of the discharge door are achieved by flipping upward or downward.

3. The box-type semitrailer compartment according to claim 2, characterized in that: The locking mechanism includes: a hook; the hook is movably connected to the bottom of the carriage body, and the discharge door is provided with a pin shaft that cooperates with the hook; when the discharge door is closed, the hook can cooperate with the pin shaft to lock the discharge door.

4. The box-type semitrailer compartment according to claim 2, characterized in that: An outer edge structure is provided at the outer edge of the unloading outlet of the box body, and the outer edge structure includes a plurality of plates spliced ​​to each other.

5. The box-type semitrailer compartment according to claim 4, characterized in that: The unloading door is in the shape of a dustpan, and comprises: a door main board and two door side panels erected on the surface of the door main board and arranged opposite to each other; one side edge of the door main board is hinged to the lower part of the box body, and the two door side panels are arranged at both ends of the side edge; when the unloading door is closed, the door main board can seal the unloading outlet, and the outer edge structure is accommodated between the two door side panels.

6. The box-type semitrailer compartment according to claim 1, characterized in that: A plurality of groups of the unloading devices are provided at the bottom of one side of the carriage body, and each group includes three unloading devices, which are distributed along the length direction of the carriage body.

7. The box-type semitrailer compartment according to claim 1, characterized in that: A flow guide frame corresponding to the unloading device is arranged in the carriage body, and the flow guide frame has a slope so that the bulk cargo in the carriage body can flow into the unloading device through the flow guide frame.

8. A box-type semi-trailer for transporting bulk grain, characterized in that: include: A vehicle frame and the vehicle body according to any one of claims 1 to 7 placed on the vehicle frame.

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