Lock for top cover of bulk container

Abstract

The utility model discloses a bulk cargo box top cover lock which comprises a bottom plate and a handle which are mutually hinged through a support, a lock ring is further arranged on the handle in a penetrating mode, a lock catch is arranged on the top of the inner ring side of the lock ring, a lock plate is arranged on the side face of the handle, the lock plate and the bottom plate are in butt joint to a bulk cargo box top plate, and the lock catch tightly abuts against the tail end of the support after the handle is turned over relative to the support. According to the special bulk container top cover pressing device, the pressing requirement of a special bulk container top cover is met by pressing the handle downwards and through cooperation of the bottom plate and the locking plate, and meanwhile the customs clearance requirement related to sea transportation such as TIR can be met. By means of the detachable fixing design, it can be guaranteed that the top cover can be smoothly opened through simple operation, and follow-up maintenance is facilitated. The lock ring is driven through the handle, the tensioning lock buckle is connected, it is guaranteed that the bottom plate and the lock plate are attached to the bulk container, and the top cover is pressed tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of containers, and more specifically, to a bulk container top cover lock. Background Art

[0002] A bulk container refers to a "container" with a loading port on the top and a shipping port on the bottom, which is mainly used to transport unpackaged solid granular and powdered goods. It is often used to load grain, and can also be used to load various feeds, resins, borax, cement, sand and gravel and other goods. When loading grain, due to quarantine needs, some bulk containers are also equipped with auxiliary devices for fumigation on the top. However, the top cover pressing method of some special bulk containers is relatively special. For example, application number CN201910654530.0 provides a top cover and a container including it. During the container transportation process, even if there is a bump, the locking hook can be prevented from detaching from the box body due to the support of the stop device. The stop device can also be moved to the second position under the action of an external force, so that the stop device is separated from the lever member, so that the hook-shaped member is no longer subjected to the support force, and can be rotated and moved and separated from the box body under the action of other external forces.

[0003] However, this structure involves too many parts, the locking mechanism takes up too much space in both the horizontal and vertical directions, and the locking relies too much on elastic parts such as hard springs. The structure is complex, the switch is cumbersome, and the scope of application is limited. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a bulk container top cover lock to solve one or more of the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bulk container top cover lock comprises a bottom plate and a handle hinged to each other through a support, a locking ring is also passed through the handle, a locking buckle is provided at the top of the inner circle side of the locking ring, a locking sheet is provided on the side of the handle, the locking sheet and the bottom plate are connected to the top plate of the bulk container, and the locking buckle is tightly pressed against the end of the support after the handle is folded relative to the support.

[0007] Furthermore, the support is divided into supporting legs that are symmetrically arranged on the left and right. The support is an overall Y-shaped structure. The open end of the support points to the center of the base plate. The support is continuously raised and tilted outward along the center of the base plate. A horizontally penetrating hinge hole is provided at the highest end of the support.

[0008] Furthermore, the hinged end of the handle is a cone head structure, a horizontally through hinge hole is provided at the upper end of the hinged end, a horizontally through mounting hole is provided at the lower end of the hinged end, the handle and the support are hinged by a pin shaft inserted into the hinge hole, and the locking ring is passed through the mounting hole.

[0009] Furthermore, a cotter pin is provided outside the pin shaft and inside the hinge hole, a washer is provided at the end of the pin shaft, a limit block is provided between the two legs of the support, and the limit block is located on the movement trajectory of the hinged end of the handle.

[0010] Furthermore, the connection between the hand-held end and the hinged end of the handle has an upwardly tilted arc section and a horizontally through-going docking hole, and the end of the hand-held end of the handle has a downwardly bent arc section.

[0011] Furthermore, the locking plate is an L-shaped cross-section plate, one end of which is provided with a docking hole, and the locking plate is bolted to the handle via the docking hole.

[0012] Furthermore, the lock buckle is a plate with an upward tilt at one end, and the other end of the lock buckle has a horizontal concave arc, and the concave end of the lock buckle points to the center of the bottom plate.

[0013] Furthermore, the locking ring is a ring tube structure that is wide at the top and narrow at the bottom.

[0014] In summary, the utility model has the following beneficial effects: by pressing down the handle, the bottom plate and the locking piece are used to achieve the pressing requirement of the top cover of the special bulk container, and at the same time, it can also meet the customs clearance requirements related to TIR and other sea transportation. The detachable fixed design can not only ensure that the top cover can be opened smoothly under simple operation, but also facilitate subsequent maintenance. The handle drives the locking ring, connects the tightening lock buckle, ensures that the bottom plate and the locking piece are close to the bulk container, and presses the top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of an implementation method provided by the utility model;

[0016] Figure 2 A side schematic diagram of an implementation scheme provided by the utility model;

[0017] Figure 3 The present invention is a top view schematically showing an implementation scheme provided by the present invention.

[0018] In the figure: 1, base plate; 2, handle; 3, locking ring; 4, support; 5, locking plate; 6, limit block; 7, pin shaft; 8, cotter pin; 9, washer; 10, lock buckle. DETAILED DESCRIPTION

[0019] Example:

[0020] The following is combined with Figure 1-3 The utility model is described in further detail.

[0021] A bulk container top cover lock, such as Figure 1 As shown, it includes main parts such as base plate 1, handle 2, lock ring 3, lock buckle 10, lock plate 5, etc. The handle 2 and base plate 1 are hinged to each other through a support 4. The handle 2 is divided into a hinge end and a hand-held end. The hinge end of the handle 2 is a cone head structure. The hinge end is provided with a horizontally penetrating hinge hole and a mounting hole. The hinge hole is arranged at the upper end of the hinge end cone head, and the mounting hole is arranged at the lower end of the hinge end cone head. Figure 3 As shown, the support 4 is a support leg symmetrically arranged on the left and right, and the two support legs are arranged in a Y-shaped structure as a whole. The open end of the support 4 points to the center of the bottom plate 1, and the support 4 is continuously raised and tilted outward along the center of the bottom plate 1, that is, the support 4 is arched on the side, and a horizontal hinge hole is opened at the highest end of the support 4. The handle 2 and the support 4 are hinged by aligning the hinge holes and then removing the corresponding pin shaft 7. Preferably, in order to enhance the stability of the hinge structure, a cotter pin 8 is provided outside the pin shaft 7, and the cotter pin 8 is also located in the hinge hole. A washer 9 is provided at the end of the pin shaft 7 to prevent obvious loosening of the hinge position and ensure the clamping effect.

[0022] like Figure 2 As shown, the connection between the hand-held end of the handle 2 and its hinged end has an upward arc segment, and the end of the hand-held end of the handle 2 has a downward curved arc segment. This design can better be bent and fixed through leverage.

[0023] The handle 2 is also provided with a lock ring 3, which is wide at the upper end and narrow at the lower end, and is adapted to the contour of the object passed by during the later rotation. The lock ring 3 is set on the handle 2 through the mounting hole, and a lock buckle 10 is set at the top of the inner ring side of the lock ring 3. The lock buckle 10 is a plate, with an upward tilt at one end and a concave arc at the other end, and the arc is set in the horizontal direction, that is, the end of the lock buckle 10 away from the center of the bottom plate 1 has a tilt to ensure that the lock buckle 10 and the lock ring 3 will not be separated, and the end of the lock buckle 10 close to the center of the bottom plate 1 is horizontally concave. Subsequently, the lock ring 3 drives the lock buckle 10 to rotate, and the concave section can fit tightly with the support 4 and the hinged end of the handle 2. A limit block 6 is also provided in the middle of the two legs of the support 4. The limit block 6 is located in the second half of the motion trajectory of the hinged end of the handle 2 to prevent the handle 2 from rotating excessively.

[0024] A locking piece 5 is provided on the side of the handle 2, and the lock door is a plate with an L-shaped cross-section, one end of which is provided with a docking hole, and the other end is connected to the bulk container. At the same time, a horizontally penetrating docking hole is provided on the handle 2, and the locking piece 5 and the handle 2 are bolted together through the docking hole.

[0025] After the handle 2 is pressed down, the locking ring 3 and the locking plate 5 rotate synchronously, and the lock buckle 10 on the locking ring 3 rotates to a position where the hinged end is tightly fitted. The bottom plate 1 and the locking plate 5 are fixed to the top cover of the bulk container with the help of bolts and other components. The bottom plate 1 and the locking plate 5 form two fulcrums for the top cover, and a fulcrum is formed between the support 4 on the bottom plate 1 and the handle 2. It is actually a clamping structure with three fulcrums, which has strong stability and a simpler structure, is easy to open and close, and has a wide range of applications.

[0026] It should be noted that this specific embodiment is merely an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A bulk container top cover lock, characterized in that: The utility model comprises a bottom plate (1) and a handle (2) which are hinged to each other through a support (4); a locking ring (3) is also passed through the handle (2); a locking buckle (10) is provided at the top of the inner ring side of the locking ring (3); a locking sheet (5) is provided on the side of the handle (2); the locking sheet (5) and the bottom plate (1) are connected to the top plate of the bulk container; after the handle (2) is folded relative to the support (4), the locking buckle (10) is tightly pressed against the end of the support (4).

2. The bulk container top cover lock according to claim 1, characterized in that: The support (4) is divided into supporting feet that are symmetrically arranged on the left and right. The support (4) is a Y-shaped structure as a whole. The open end of the support (4) points to the center of the base plate (1). The support (4) is continuously raised and tilted outward along the center of the base plate (1). The highest end of the support (4) is provided with a horizontally penetrating hinge hole.

3. The bulk container top cover lock according to claim 2, characterized in that: The hinged end of the handle (2) is a cone head structure, the upper end of the hinged end is provided with a horizontally penetrating hinge hole, the lower end of the hinged end is provided with a horizontally penetrating mounting hole, the handle (2) and the support (4) are hinged by a pin shaft (7) inserted into the hinge hole, and the lock ring (3) is inserted into the mounting hole.

4. The bulk container top cover lock according to claim 3, characterized in that: A split pin (8) is provided outside the pin shaft (7) and inside the hinge hole, a washer (9) is provided at the end of the pin shaft (7), a limit block (6) is provided between the two legs of the support (4), and the limit block (6) is located on the movement trajectory of the hinge end of the handle (2).

5. The bulk container top cover lock according to claim 3, characterized in that: The connection between the hand-held end and the hinged end on the handle (2) has an arc section that tilts upward and is provided with a horizontally penetrating docking hole, and the end of the hand-held end of the handle (2) has an arc section that bends downward.

6. The bulk container top cover lock according to claim 5, characterized in that: The locking plate (5) is an L-shaped cross-section plate, one end of which is provided with a docking hole, and the locking plate (5) is bolted to the handle (2) via the docking hole.

7. The bulk container top cover lock according to claim 6, characterized in that: The lock buckle (10) is a plate with an upward tilt at one end, and the other end of the lock buckle (10) is a horizontally concave arc, and the concave end of the lock buckle (10) points to the center of the bottom plate (1).

8. The bulk container top cover lock according to claim 1, characterized in that: The locking ring (3) is a ring tube structure that is wide at the top and narrow at the bottom.

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