Bulk container and locking device

Abstract

The utility model provides a bulk cargo container and locking equipment. The locking equipment comprises two lock seats, which are arranged on the upper and lower sides of the discharge port; a lock rod, which comprises a rod body rotatably connected to the discharge door and lock heads arranged on the upper and lower ends of the rod body; an operating handle, which is arranged on the lock rod and drives the discharge door to open and close relative to the discharge port; a locking plate, which is rotatably connected to the adjacent side of the discharge port and can be rotated to be close to or away from the discharge door; a locking piece, which is arranged on the locking plate and can abut against the discharge door; and a pressing plate, which is connected to the lock rod and can press the locking plate when the lock rod rotates, so that the locking piece presses the discharge door. The locking equipment can lock the lock heads and the lock seats by simply rotating the lock rod through the operating handle, press the locking plate through the pressing plate, achieve three-point pressing of the discharge door, improve the locking effect, and be convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of container technology, and in particular to a bulk cargo container and locking device. Background Technology

[0002] Bulk cargo containers are special containers used for loading and transporting powdery and granular goods. To facilitate loading and unloading, a loading port is provided on the top of the container, and a unloading port is provided on the container wall. The unloading port is equipped with an unloading gate, which can rotate around a pivot on the container to open and close. It can also be locked by a locking device, so that when the unloading port is open, the container can be tilted at a certain angle to unload the goods.

[0003] However, the operation of current locking devices is relatively cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a simple locking device and a bulk cargo container equipped with the locking device, so as to solve the problems of the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a locking device, comprising: Two lock seats are located on the upper and lower sides of the discharge port, respectively; A locking rod, comprising a rod body rotatably connected to the unloading gate and lock heads disposed at the upper and lower ends of the rod body; An operating handle is mounted on the locking rod and drives the unloading gate to open and close relative to the unloading port; A locking plate, which is rotatably connected to the adjacent side of the discharge port, and can rotate to be close to or away from the discharge gate; A locking element is disposed on the locking plate and can abut against the unloading gate; A clamping plate, which is connected to the locking rod and can rotate with the locking rod to clamp the locking plate, thereby causing the locking member to clamp the unloading gate.

[0006] In one embodiment, the operating handle drives the locking rod to rotate, causing the lock head to engage with the corresponding lock seat to lock the locking rod. At the same time, the pressure plate overlaps with the locking plate to press the locking plate, and the locking member abuts against and presses the unloading gate.

[0007] In one embodiment, the locking plate includes a hinge portion, an abutment portion, and a protrusion disposed between the hinge portion and the abutment portion. The hinge portion is rotatably connected to the housing. The abutment portion can move closer to the discharge port as the hinge portion rotates. The pressing plate presses against the abutment portion. When the pressing plate presses against the abutment portion, there is a gap between the protrusion portion and the discharge gate.

[0008] In one embodiment, the locking member is movable relative to the locking plate and can move in a direction toward or away from the unloading gate, thereby causing the locking member to abut against the unloading gate; The locking plate is provided with a threaded hole, and the outer periphery of the locking member is provided with an external thread. The locking member is threadedly connected to the threaded hole and can move relative to the locking plate.

[0009] In one embodiment, the locking member includes at least one locking member; When the number of locking elements located in the same vertical direction is odd, one of the locking elements is located at the midpoint of the vertical direction of the locking plate, and the remaining locking elements are arranged symmetrically about the midpoint of the vertical direction of the locking plate. When the number of locking elements located in the same vertical direction is even, the multiple locking elements are arranged symmetrically about the midpoint of the upper and lower directions of the locking plate.

[0010] In one embodiment, the clamping plate has a reinforcing rib on the side opposite to the unloading gate; the reinforcing rib is fixedly connected to the locking rod; The locking plate is provided with a reinforcing plate on the side facing the discharge port. When the locking member abuts against the discharge gate, there is a gap between the reinforcing plate and the discharge gate.

[0011] In one embodiment, the operating handle is rotatable downward relative to the locking bar and folds to fit against the side of the locking bar; The operating handle is connected to the locking rod via a hinge seat, which is fixed to the locking rod. The bottom of the hinge seat is open. The operating handle is connected to the hinge seat via a hinge shaft, which is perpendicular to the locking rod. The operating handle can rotate downward around the hinge shaft. The locking device includes a limiting seat disposed on the unloading gate and spaced apart from the locking rod, for limiting the position of the operating handle.

[0012] In one embodiment, the lock head includes a main body connected to the rod and a lock hook disposed on one side of the main body. The lock hook includes two lock arms spaced apart on the main body, and the two lock arms and the main body enclose a slot with an opening facing away from the main body. The lock base has a vertically through-hole with an outward opening for accommodating the main body. One side of the lock base is provided with an extension plate that protrudes outward from the box body and a stop portion disposed on the extension plate relative to the box body. Both the upper and lower ends of the stop portion extend beyond the extension plate. The main body can rotate within the accommodating space, causing the locking hook to rotate until the slot engages with the extension plate, and the stop restricts the locking arm from rotating outward; The lock head also includes a guide hook disposed on the other side of the main body. The guide hook includes two guide arms spaced apart on the main body. The two guide arms and the main body enclose an opening that faces away from the main body. The lock seat has a protruding block on the other side opposite to the extension plate. When the slot is engaged with the extension plate, the protruding block is located in the accommodating groove and the protruding block allows the guide hook to move outward.

[0013] This utility model also provides a bulk cargo container, comprising: The container has a discharge port on one side; A discharge gate, which is rotatably connected to the housing and can open and close the discharge port; The locking device as described above.

[0014] In one embodiment, the unloading gate includes a gate body and a reinforcing portion recessed inward from the middle of the gate body, the locking rod is connected to the gate body, the pressing plate corresponds to the reinforcing portion, and the locking member abuts against the gate body.

[0015] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: The locking device of this utility model includes two lock seats, a lock rod, an operating handle, a locking plate, a locking component, and a pressure plate. The operating handle drives the lock rod, which in turn drives the unloading gate to open or close. The operating handle drives the lock rod to rotate, so that the upper and lower ends of the lock rod respectively engage with the two lock seats to achieve locking. When the lock rod rotates, it drives the pressure plate to rotate, pressing down on the end of the locking plate away from the lock seat. The locking component abuts against the unloading gate, realizing the locking and pressing of the unloading gate. The operation is simple and convenient.

[0016] This locking device secures the unloading door and the housing, improving the sealing effect. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of a portion of the structure of the bulk cargo container in this utility model.

[0018] Figure 2 This is a structural schematic diagram of the unloading gate and part of the locking device in this utility model.

[0019] Figure 3 This is a partial structural diagram of the bulk cargo container in this utility model.

[0020] Figure 4 This is a top view of the present invention, showing that both the unloading gate and the locking device are in the open state.

[0021] Figure 5 This is a top view of the present invention, showing the unloading gate in the closed state and the locking plate flipped to the direction of the unloading gate.

[0022] Figure 6 This is a top view of the unloading gate in the present invention, with the locking rod and the pressure plate in contact with the locking plate.

[0023] The annotations in the attached figures are explained as follows: 10. Bulk Cargo Container; 1. Container Body; 11. Unloading Port; 2. Unloading Door; 21. Door Body; 22. Reinforcing Part; 3. Locking Device; 31. Lock Seat; 321. Rod Body; 322. Lock Head; 3221. Main Body; 3222. Lock Hook; 3223. Guide Hook; 331. Mounting Base; 335. Operating Handle; 336. Hinge Seat; 34. Limit Seat; 341. Seat Body; 342. Lower Limit Part; 343. Upper Limit Part; 35. Locking Seat; 36. Locking Plate; 361. Abutment Part; 362. Protrusion Part; 37. Locking Component; 38. Pressure Plate. Detailed Implementation

[0024] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0025] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0026] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0027] This application provides a bulk cargo container, primarily used for transporting goods. The goods may be in powder or granular form.

[0028] Combination Figures 1-3 The bulk container 10 includes the container body 1, the unloading door 2, and the locking device 3.

[0029] A discharge port 11 is provided on one side of the housing 1. The discharge port 11 can be located at the rear end of the housing 1, or at the left or right side of the housing 1, depending on the actual needs.

[0030] The unloading gate 2 is rotatably connected to the housing 1 and can open and close the unloading port 11. That is, the unloading gate 2 has an open position and a closed position. When the unloading gate 2 is in the open position, the unloading port 11 is open to the outside, allowing the goods inside the housing 1 to be discharged out through the unloading port 11. When the unloading gate 2 is in the closed position, the unloading gate 2 closes the unloading port 11, sealing the space inside the housing 1 so that goods can be loaded.

[0031] The structure of the housing 1 and the connection method between the unloading door 2 and the housing 1 can be referred to relevant technologies, and this application does not make any improvements.

[0032] Specifically, the unloading door 2 includes a door body 21 and a reinforcing part 22 recessed inward from the middle of the door body 21. Here, "inside" and "outside" are relative to the internal space of the housing 1; the direction towards the inside of the housing 1 is "inside," and the opposite direction is "outside."

[0033] In this embodiment, the discharge port 11 has a square outline, and the gate 21 has a square shape. In other embodiments, the outline of the discharge port 11 and the gate 21 may also be other shapes.

[0034] The outer periphery of the door 21 is also provided with an inwardly folding flange and a sealing element to better seal the space inside the box 1.

[0035] The reinforcing part 22 is square. The reinforcing part 22 is connected to the door body 21 through a transition part, which is inclined to connect the reinforcing part 22 and the door body 21. Furthermore, the transition part smoothly transitions to the reinforcing part 22 and smoothly transitions to the door body 21.

[0036] The reinforcing part 22 and the door body 21 are located in different planes, thus strengthening the entire unloading door 2.

[0037] The locking device 3 is used to lock the unloading gate 2 and the housing 1. Specifically, the locking device 3 includes two lock seats 31, a locking rod, an operating handle 335, a locking plate 36, a locking element 37, and a pressure plate 38. The operating handle 335 drives the locking rod, which in turn drives the unloading gate 2 to open or close. The operating handle 335 drives the locking rod to rotate, which causes the lock heads 322 at the upper and lower ends of the locking rod to engage with the two lock seats 31 respectively to achieve locking. When the locking rod rotates, it drives the pressure plate 38 to rotate and press against the end of the locking plate 36. The locking element 37 abuts against the unloading gate 2, realizing the locking and pressing of the unloading gate 2. The operation is simple.

[0038] The locking device 3 is described in detail below.

[0039] The locking rod includes a rod body 321 rotatably connected to the unloading gate 2 and lock heads 322 disposed at the upper and lower ends of the rod body 321.

[0040] The rod 321 is columnar. The locking rod is connected to the door body 21, specifically meaning that the rod 321 is rotatably connected to the door body 21 of the unloading door 2. Specifically, the rod 321 is mounted to the door body 21 via a mounting base 331. The mounting base 331 includes an arc-shaped holding portion and mounting portions located at opposite ends of the holding portion. The mounting portions are flat and fit snugly against the door body 21. The mounting portions and the door body 21 are detachably connected using bolts and nuts.

[0041] The central angle of the holding part is 180°~360°. The holding part and the mounting part have a smooth transition.

[0042] The mounting base 331 and the door body 21 together enclose a space for the rod body 321 to rotate.

[0043] The lock head 322 located at the upper end of the rod 321 extends upward beyond the unloading gate 2, and the lock head 322 located at the lower end of the rod 321 extends downward beyond the unloading gate 2.

[0044] The lock head 322 includes a main body 3221 connected to the rod 321 and a lock hook 3222 disposed on one side of the main body 3221. The lock hook 3222 includes two locking arms disposed at intervals on the main body 3221, and the two locking arms and the main body 3221 enclose a slot with an opening facing away from the main body 3221.

[0045] Preferably, the distance between the two locking arms gradually increases in the direction away from the main body 3221, that is, the opening between the two locking arms gradually widens.

[0046] The lock head 322 also includes a guide hook 3223 disposed on the other side of the main body 3221, that is, the guide hook 3223 and the lock hook 3222 are respectively arranged on opposite sides of the main body 3221.

[0047] The guide hook 3223 includes two guide arms spaced apart on the main body 3221. The two guide arms and the main body 3221 enclose a receiving groove with an opening facing away from the main body 3221. The distance between the two guide arms does not change much, but increases slightly in the direction away from the main body 3221.

[0048] Among them, the diameter of the maximum opening of the locking hook 3222 is greater than the diameter of the maximum opening of the guide hook 3223.

[0049] Two locking seats 31 are positioned on the upper and lower sides of the discharge port 11. The locking seats 31 are fixed to the housing 1. The two locking seats 31 are correspondingly set with the two locking heads 322.

[0050] Specifically, the lock base 31 has a vertically penetrating and outwardly opening accommodating space for accommodating the main body 3221. One side of the lock base 31 is provided with an extension plate that protrudes outward from the housing 1 and a stop portion provided on the extension plate relative to the housing 1. Both the upper and lower ends of the stop portion extend beyond the extension plate.

[0051] A protruding block is provided on the lock base 31 on the opposite side of the extension plate. That is, the protruding block and the extension plate are arranged on opposite sides and both extend outward from the housing 1.

[0052] In this embodiment, the lock base 31 includes a fixed plate, an extension plate and a protruding block arranged on opposite sides of the fixed plate, and a stop portion disposed on the end of the extension plate away from the fixed plate. The fixed plate is fixed to the housing 1. The fixed plate, extension plate, protruding block, and stop portion together enclose a receiving space. The extension plate, fixed plate, and stop portion can be closed to form a receiving groove with an upward or downward opening. The receiving groove of the upper lock base 31 has an upward opening, and the receiving groove of the lower lock base 31 has a downward opening. The height of the protruding block gradually decreases along the direction close to the extension plate in the vertical direction.

[0053] When the lock head 322 and the lock seat 31 are engaged, the main body 3221 can rotate within the accommodating space, causing the lock hook 3222 to rotate until it engages with the extension plate in the slot, and the stop restricts the lock arm from rotating outward. When the slot engages with the extension plate, the protruding block is located in the accommodating groove and allows the guide hook 3223 to move outward.

[0054] by Figure 1 Using the view direction as a reference, and with Figure 1 When the lock head 322 and the lock seat 31 are locked in the initial state, the lock head 322 is rotated counterclockwise, that is, the guide hook 3223 rotates from left to right and away from the fixed plate, and the lock hook 3222 rotates from right to left and toward the fixed plate until the lock hook 3222 disengages from the receiving groove and the extension plate disengages from the slot. At this time, the lock head 322 and the lock seat 31 are unlocked.

[0055] When it is necessary to lock the lock head 322 and the lock seat 31, rotate the lock head 322 clockwise, that is, rotate the guide hook 3223 to the left and closer to the fixed plate, and rotate the lock hook 3222 to the right and away from the fixed plate, until the lock hook 3222 is received in the receiving groove, the extension plate enters the slot, and the lock head 322 and the lock seat 31 are locked by the stopping part on the lock arm.

[0056] The operating handle 335 is mounted on the locking rod and can drive the unloading gate 2 to open and close relative to the unloading port 11. The operating handle 335 can also drive the locking rod to rotate, so that the lock head 322 engages with the corresponding lock seat 31 to lock the locking rod.

[0057] In this embodiment, the operating handle 335 is located in the middle of the rod 321, specifically on the part of the rod 321 between the two mounting seats 331.

[0058] The operating handle 335 can be rotated downward relative to the locking bar and folded to fit against the side of the locking bar. Therefore, when the operating handle 335 drives the unloading gate 2 outward to open the unloading gate 2, the operating handle 335 can be rotated and folded to avoid the operating handle 335 extending outward and causing interference, thus ensuring safety.

[0059] The operating handle 335 is connected to the locking rod via a hinge seat 336. The hinge seat 336 is fixed to the locking rod and has an opening at the bottom. The operating handle 335 is connected to the hinge seat 336 via a hinge shaft, which is perpendicular to the locking rod. The operating handle 335 can rotate downward around the hinge shaft.

[0060] Specifically, the hinge seat 336 includes a horizontally extending wing plate and side plates arranged on both sides of the wing plate. The side plates extend vertically and have hinge holes. The wing plate and the two side plates are fixedly connected to the rod 321 to achieve a fixed connection between the hinge seat 336 and the rod 321.

[0061] The operating handle 335 is provided with a through hole, and the hinge shaft passes through both the through hole and the hinge holes on the two side plates to realize the hinge connection between the operating handle 335 and the locking rod.

[0062] The operating handle 335 is provided with a bent portion as needed, so that at least part of the operating handle 335 is spaced from the unloading door 2 or the box 1, so that the operator can hold and operate it.

[0063] The locking device 3 includes a limiting seat 34 disposed on the unloading gate 2 and spaced apart from the locking rod, for limiting the position of the operating handle 335.

[0064] The limiting seat 34 includes a seat body 341 fixed to the unloading gate 2, a lower limiting part 342 fixed to the seat body 341, and an upper limiting part 343 rotatably connected to the seat body 341. The upper limiting part 343 can rotate downward to approach the lower limiting part 342 and together with the seat body 341 to form a limiting space. The upper limiting part 343 can rotate upward to move away from the lower limiting part 342, so that the operating handle 335 can move to or out of the limiting space.

[0065] In this embodiment, the limiting seat 34 is disposed on the door body 21 of the unloading gate 2. The seat body 341 is plate-shaped and fits against the unloading gate 2. Both the upper limiting part 343 and the lower limiting part 342 include outwardly bent portions, so that the upper limiting part 343, the lower limiting part 342 and the seat body 341 together enclose a limiting space. Specifically, the upper limiting part 343 includes a vertically extending connecting wall, a transition wall extending horizontally away from the unloading gate 2 from the bottom of the connecting wall, an outer wall extending vertically downward from the outer end of the connecting wall, and an outer end wall extending horizontally away from the unloading gate 2 from the bottom of the outer wall. The structure of the lower limiting part 342 can be described with reference to the upper limiting part 343. The structure of the lower limiting part 342 is obtained by flipping the upper limiting part 343 by 180 degrees. The difference lies in the connection relationship between the connecting wall and the seat body 341, and the dimensions of the lower limiting part 342 and the upper limiting part 343.

[0066] When the upper limit portion 343 of the limiting seat 34 extends downwards to a vertical position and corresponds to the lower limit portion 342, the operating handle 335 cannot enter or exit the limiting space. At this time, by rotating the upper limit portion 343 upwards to expose the upper part of the limiting space, the operating handle 335 can enter or exit the limiting space.

[0067] The locking plate 36, locking element 37, and pressing plate 38 press the unloading gate 2 to ensure the sealing effect of the unloading gate 2.

[0068] The locking plate 36 is rotatably connected to the adjacent side of the discharge port 11 and can be rotated to be close to or away from the discharge gate 2.

[0069] Specifically, the locking plate 36 is connected to the housing 1 via a locking seat 35. The locking seat 35 is located adjacent to the discharge port 11 and is vertically spaced from the limiting seat 34. Specifically, the locking seat 35 is mounted on the housing 1. The vertically spaced locking seat 35 and limiting seat 34 prevent interference between the operating handle 335 and the locking plate 36. In this embodiment, the locking seat 35 includes a fixing plate fixed to the housing 1 and a top plate and a bottom plate located at the upper and lower ends of the fixing plate, both extending outwards from the housing 1. The outer ends of the top plate and the bottom plate have through holes extending vertically along their axes.

[0070] The locking plate 36 is rotatably connected to the locking seat 35. Specifically, one end of the locking plate 36 is provided with a vertically penetrating rotating hole, and the rotating shaft is simultaneously inserted into the through hole and rotating hole on the top plate and the bottom plate, so as to realize the rotatable connection between the locking plate 36 and the locking seat 35.

[0071] The locking plate 36 includes a hinge portion, an abutment portion 361, and a protrusion 362 disposed between the hinge portion and the abutment portion 361. The hinge portion is rotatably connected to the housing 1, and the abutment portion 361 can move closer to the discharge port 11 as the hinge portion rotates. The pressing plate 38 presses against the abutment portion 361. When the pressing plate 38 is pressed against the abutment portion 361, there is a gap between the protrusion 362 and the discharge gate 2.

[0072] The protrusion 362 specifically corresponds to the door body 21 and is spaced apart from the door body 21.

[0073] Preferably, the abutting portion 361 and the protruding portion 362 are parallel to each other, and the abutting portion 361 and the protruding portion 362 are connected by an inclined portion, which is inclined relative to both the abutting portion 361 and the protruding portion 362.

[0074] The locking plate 36 has a suitable height in the vertical direction to increase the contact area with the unloading gate 2 and better press the unloading gate 2.

[0075] A reinforcing plate (not shown in the figure) is provided on the side of the locking plate 36 facing the discharge port 11. When the locking member 37 abuts against the discharge gate 2, there is a gap between the reinforcing plate and the discharge gate 2. The reinforcing plate is perpendicular to the locking plate 36. When the locking plate 36 is in the locked state, the locking member 37 abuts against the discharge gate 2, and there is a gap between the reinforcing plate and the discharge gate 2.

[0076] The locking member 37 is disposed on the locking plate 36 and can abut against the unloading gate 2. Specifically, the locking member 37 presses against the gate body 21 of the unloading gate 2. Specifically, the locking member 37 is disposed on the locking plate at a position corresponding to the gate body 21 and abuts against the gate body 21.

[0077] With reference to the state in which the locking plate 36 locks the unloading gate 2, the locking member 37 protrudes from the inside of the locking plate 36 and abuts against the unloading gate 2.

[0078] Preferably, the locking member 37 is movable relative to the locking plate 36 and can move in a direction close to or away from the unloading gate 2, thereby causing the locking member 37 to abut against the unloading gate 2. The adjustability of the locking member 37 ensures that it abuts against the unloading gate 2 regardless of any deformation, avoiding situations where the locking member 37 cannot abut against the unloading gate 2 due to processing errors, deformation of the locking plate 36, or other working conditions.

[0079] In this embodiment, the locking plate 36 is provided with a threaded hole, and the outer periphery of the locking member 37 is provided with an external thread. The locking member 37 is threadedly connected to the threaded hole and can move relative to the locking plate 36. That is, by means of threaded engagement, the length of the locking member 37 extending relative to the locking plate 36 is adjusted to ensure that it abuts against the unloading gate 2.

[0080] In other embodiments, the locking plate 36 is provided with a through hole, the locking member 37 passes through the through hole, and extends toward the unloading gate 2 by the restoring force of the elastic member, thereby pressing the unloading gate 2.

[0081] The locking element 37 includes at least one locking element 37. That is, the number of locking elements 37 can be only one, or two, three or any other arbitrary number, depending on the actual needs.

[0082] When the number of locking elements 37 located in the same vertical direction is odd, one locking element 37 is located at the midpoint of the vertical direction of the locking plate 36, and the remaining locking elements 37 are arranged symmetrically about the midpoint of the vertical direction of the locking plate 36. For example, when there is only one locking element 37, it is located at the midpoint. When there are three locking elements 37, one is located at the midpoint, and the other two are arranged symmetrically about the midpoint, one above the other.

[0083] When the number of locking elements 37 located in the same vertical direction is even, the multiple locking elements 37 are arranged symmetrically about the midpoint of the locking plate 36 in the vertical direction. For example, when there are two locking elements 37, the two locking elements 37 are arranged symmetrically about the midpoint in the vertical direction. When there are four locking elements 37, they can be arranged in a 2×2 array.

[0084] The clamping plate 38 is connected to the locking rod and can press the end of the locking plate 36 away from the locking seat 35 as the locking rod rotates. Specifically, the clamping plate 38 is welded to the rod body 321 of the locking rod.

[0085] The clamping plate 38 has a flat clamping surface that presses against the abutting portion 361 of the locking plate 36.

[0086] The clamping plate 38 preferably has a reinforcing rib on the side opposite to the unloading gate 2 to increase strength. The reinforcing rib is fixedly connected to the locking rod to increase the connection strength between the clamping plate 38 and the locking rod. The end of the reinforcing rib is adapted to the outer periphery of the locking rod.

[0087] One end of the locking plate 36 is connected to the housing 1 via the locking seat 35, and the abutting part 361 at the other end of the locking plate 36 is pressed by the pressing plate 38. The locking member 37 is pressed onto the door body 21 of the unloading door 2.

[0088] When locking the unloading gate 2, the locking device 3 achieves simultaneous three-point locking of the unloading gate 2 through the cooperation of the lock heads 322 at both ends of the locking rod with the lock seats 31 set on the box body 1, and the cooperation of the locking plate 36 and the pressing plate 38, thereby improving the sealing effect of the unloading gate 2 on the unloading port 11.

[0089] See Figure 4 At this time, the unloading gate 2 is in the open state, and the locking plate 36 rotates away from the unloading port 11 and close to the box body 1.

[0090] See Figure 5 When it is necessary to close the unloading gate 2, the unloading gate 2 is pushed to the closed unloading port 11 and to the pre-tightened position by operating the handle 335. At this time, the lock head 322 is not engaged with the lock seat 31, and the angle between the operating handle 335 and the unloading gate 2 is large, so it is in the open state. Then, the locking plate 36 is rotated so that the end of the locking plate 36 away from the locking seat 35, i.e., the abutment part 361, approaches the unloading gate 2, and the locking member 37 contacts the unloading gate 2.

[0091] See Figure 6 Rotate the operating handle 335 to move it closer to the locking plate 36 from the previous step. The rotation of the locking rod will in turn drive the pressure plate 38 to rotate, causing the pressure plate 38 to contact the abutment part 361. Continue to rotate the operating handle 335 to engage the lock head 322 with the lock seat 31 and lock it in place. At the same time, the pressure plate 38 will gradually approach the unloading gate 2 and press against the abutment part 361 of the locking plate 36.

[0092] Furthermore, adjust the locking element 37 to ensure that the locking element 37 abuts against the unloading gate 2, providing a better clamping effect and ensuring a better sealing effect.

[0093] Based on the above analysis, the locking device 3 can easily lock the lock head 322 and the lock seat 31 by simply rotating the locking rod, and press the pressing plate 38 against the locking plate 36, thus realizing the locking function of the unloading gate 2, which is convenient and fast.

[0094] In summary, the locking device 3 has the following advantages: The locking device 3 of this utility model includes two locking seats 31, a locking rod, an operating handle 335, a locking plate 36, a locking element 37, and a pressure plate 38. The operating handle 335 drives the locking rod, thereby opening or closing the unloading gate 2. The operating handle 335 drives the locking rod to rotate, so that the upper and lower ends of the locking rod respectively cooperate with the two locking seats 31 to achieve locking. When the locking rod rotates, it drives the pressure plate 38 to rotate and presses down the end of the locking plate 36 away from the locking seat 35. The locking element 37 abuts against the unloading gate 2, realizing the locking and pressing of the unloading gate 2. The operation is simple and convenient.

[0095] The locking device 3 locks the unloading door 2 and the box 1, improving the sealing effect.

[0096] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many 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. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A locking device, characterized in that, include: Two lock seats are located on the upper and lower sides of the discharge port, respectively; A locking rod, comprising a rod body rotatably connected to the unloading gate and lock heads disposed at the upper and lower ends of the rod body; An operating handle is mounted on the locking rod and drives the unloading gate to open and close relative to the unloading port; A locking plate, which is rotatably connected to the adjacent side of the discharge port, and can rotate to be close to or away from the discharge gate; A locking element is disposed on the locking plate and can abut against the unloading gate; A clamping plate, which is connected to the locking rod and can rotate with the locking rod to clamp the locking plate, thereby causing the locking member to clamp the unloading gate.

2. The locking device according to claim 1, characterized in that, The operating handle drives the locking rod to rotate, causing the lock head to engage with the corresponding lock seat to lock the locking rod. At the same time, the pressure plate overlaps with the locking plate to press the locking plate, and the locking member abuts against and presses the unloading door.

3. The locking device according to claim 1, characterized in that, The locking plate includes a hinge portion, an abutment portion, and a protrusion disposed between the hinge portion and the abutment portion. The hinge portion is rotatably connected to the housing. The abutment portion can move closer to the discharge port as the hinge portion rotates. The pressing plate presses on the abutment portion. When the pressing plate presses on the abutment portion, there is a gap between the protrusion portion and the discharge gate.

4. The locking device according to claim 3, characterized in that, The locking member is movable relative to the locking plate and can move in a direction close to or away from the unloading gate, thereby causing the locking member to abut against the unloading gate; The locking plate is provided with a threaded hole, and the outer periphery of the locking member is provided with an external thread. The locking member is threadedly connected to the threaded hole and can move relative to the locking plate.

5. The locking device according to claim 1, characterized in that, The locking element includes at least one locking element; When the number of locking elements located in the same vertical direction is odd, one of the locking elements is located at the midpoint of the vertical direction of the locking plate, and the remaining locking elements are arranged symmetrically about the midpoint of the vertical direction of the locking plate. When the number of locking elements located in the same vertical direction is even, the multiple locking elements are arranged symmetrically about the midpoint of the upper and lower directions of the locking plate.

6. The locking device according to claim 1, characterized in that, The clamping plate is provided with a reinforcing rib on the side opposite to the unloading gate; the reinforcing rib is fixedly connected to the locking rod; The locking plate is provided with a reinforcing plate on the side facing the discharge port. When the locking member abuts against the discharge gate, there is a gap between the reinforcing plate and the discharge gate.

7. The locking device according to claim 1, characterized in that, The operating handle can be rotated downward relative to the locking bar and folded to fit against the side of the locking bar; The operating handle is connected to the locking rod via a hinge seat, which is fixed to the locking rod. The bottom of the hinge seat is open. The operating handle is connected to the hinge seat via a hinge shaft, which is perpendicular to the locking rod. The operating handle can rotate downward around the hinge shaft. The locking device includes a limiting seat disposed on the unloading gate and spaced apart from the locking rod, for limiting the position of the operating handle.

8. The locking device according to claim 1, characterized in that, The lock head includes a main body connected to the rod and a lock hook disposed on one side of the main body. The lock hook includes two lock arms spaced apart on the main body, and the two lock arms and the main body enclose a slot with an opening facing away from the main body. The lock base has a vertically through-hole with an outward opening for accommodating the main body. One side of the lock base is provided with an extension plate that protrudes outward from the box body and a stop portion disposed on the extension plate relative to the box body. Both the upper and lower ends of the stop portion extend beyond the extension plate. The main body can rotate within the accommodating space, causing the locking hook to rotate until the slot engages with the extension plate, and the stop restricts the locking arm from rotating outward; The lock head also includes a guide hook disposed on the other side of the main body. The guide hook includes two guide arms spaced apart on the main body. The two guide arms and the main body enclose an opening that faces away from the main body. The lock seat has a protruding block on the other side opposite to the extension plate. When the slot is engaged with the extension plate, the protruding block is located in the accommodating groove and the protruding block allows the guide hook to move outward.

9. A bulk cargo container, characterized in that, include: The container has a discharge port on one side; A discharge gate, which is rotatably connected to the housing and can open and close the discharge port; The locking device as described in any one of claims 1 to 8.

10. The bulk cargo container according to claim 9, characterized in that, The unloading gate includes a gate body and a reinforcing part recessed inward from the middle of the gate body. The locking rod is connected to the gate body, the pressing plate corresponds to the reinforcing part, and the locking member abuts against the gate body.

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