Container cap locking device and container

Abstract

The application provides a container cover locking device and a container, the container cover locking device comprises a lock catch, a lock tongue slot and an automatic reset structure. The lock catch is arranged on the inner surface of the container cover and can slide relative to the container cover to be inserted into or separated from the lock tongue slot arranged on the container body. When the lock tongue is inserted into the lock tongue slot, the lock catch is in a locked state, and the lock catch makes the container cover stably locked on the container body through the automatic reset structure. The container cover locking device has a simple overall structure and can ensure the stability of the container cover locked on the container body. The lock catch is arranged on the inner surface of the container cover, so that the container cover has a flat upper surface and the influence of rain and other bad weather on the contents in the container can be avoided. The lock catch is arranged on the side close to the container cover, so that the stress of the container cover after being locked can be balanced and the safety of the container cover locking can be ensured. In addition, the container cover locking device adopts the sliding mode of the lock catch to realize the locking of the container cover and the container body, and the overall operation is simple and the operability is strong.

Description

Technical Field

[0001] This invention relates to the field of cargo transportation technology, and in particular to a container lid locking device and a container. Background Technology

[0002] Liquid transportation places higher demands on transport equipment compared to general cargo transportation. Generally, packaging capable of storing and transporting various non-hazardous liquids is called a container. These containers can be placed inside other containers and transported by train, truck, or ship, thus replacing expensive traditional packaging such as tanks and drums. This significantly reduces costs associated with loading, unloading, packaging, transportation, and material management, solving the problem of transporting large quantities of bulk non-hazardous liquids. Due to its significant economic advantages compared to traditional transport packaging methods, it has found wider application in various fields such as chemicals, petroleum, food, feed, and agricultural products.

[0003] Containers typically require lid locking devices to provide dust and water protection for the interior. Currently, most containers use spring-loaded latches or mechanically swinging lid locking devices. These two types of lid locking devices are relatively complex in structure and have poor reliability. Summary of the Invention

[0004] To address some or all of the problems in the prior art, the present invention provides a container lid locking device for locking a container lid to a container body. The container lid locking device includes a locking tongue groove, a locking buckle, and an automatic reset structure. The locking tongue groove is disposed on the side wall of the container body; the locking buckle is disposed near the container lid and is slidably connected to the inner surface of the top of the container lid; the locking buckle includes a locking tongue, which slides relative to the container lid to allow the locking tongue to insert into or disengage from the locking tongue groove; when the locking tongue is inserted into the locking tongue groove, the locking buckle is in a locked state, and the container lid is locked to the container body; the automatic reset structure is connected to the locking buckle for resetting the locking buckle and maintaining it in the locked state.

[0005] Optionally, the automatic reset structure includes a spring, one end of which is connected to the inner surface of the side wall of the container lid, and the other end is connected to the latch.

[0006] Optionally, the latch further includes an operating part connected to the locking tongue, the operating part being used to drive the locking tongue to slide relative to the container lid.

[0007] Optionally, the latch further includes a sliding part connected to the latch tongue, and the sliding part is slidably disposed in a sliding groove on the inner surface of the container lid.

[0008] Optionally, the latch further includes a limiting part, which is connected to the sliding part.

[0009] Optionally, the limiting part includes a U-shaped opening, which is disposed at one end of the limiting part away from the sliding part. The shape of the U-shaped opening is adapted to a first protrusion on the inner surface of the container lid. When the latch is in the locked state, the first protrusion is engaged in the opening of the U-shaped opening.

[0010] Optionally, the limiting portion has a recess on the side facing the inner surface of the container lid, the recess being used to engage with a second protrusion disposed on the inner surface of the container lid.

[0011] The present invention also provides a container, including a container body, a container lid, and the above-mentioned container lid locking device. The locking tongue groove of the container lid locking device is disposed on the side wall of the container body, and the locking buckle of the container lid locking device is slidably disposed on the inner surface of the top of the container lid. The locking buckle slides relative to the container lid so that the locking tongue of the locking buckle can be inserted into the locking tongue groove, thereby locking the container lid onto the container body.

[0012] Optionally, the side wall of the container lid is provided with a first through hole at the position of the latch, the latch slides relative to the container lid, and the latch can extend outwards from the first through hole.

[0013] Optionally, the container lid is further provided with a cable tie hole on its side, and the container body is provided with a locking hole corresponding to the position of the cable tie hole. The cable tie hole and the locking hole are used for cable ties to pass through and tie the container lid to the container body.

[0014] This invention provides a container lid locking device and a container. The container lid locking device includes a latch, a locking tongue groove, and an automatic reset structure. The latch is disposed on the inner surface of the container lid and can slide relative to the container lid to insert into or disengage from the locking tongue groove disposed on the container body. When the locking tongue is inserted into the locking tongue groove, the latch is in a locked state, and the automatic reset structure ensures that the container lid is stably locked to the container body. The container lid locking device of this invention has a simple overall structure and ensures the stability of the container lid's locking on the container body. The latch being disposed on the inner surface of the container lid provides a flat upper surface for the lid, eliminating concerns about the impact of rain or other inclement weather on the contents of the container. The latch being positioned closer to the container lid balances the force on the lid after locking, ensuring the safety of the lid's locking mechanism. Furthermore, the container lid locking device uses a sliding latch to lock the container lid and container body, making the overall operation simple and highly operable. Attached Figure Description

[0015] Figure 1 A partial structural schematic diagram of a container according to an embodiment of the present invention is shown;

[0016] Figure 2A schematic diagram of the internal structure of a container lid according to an embodiment of the present invention is shown;

[0017] Figure 3 An exploded view of the internal structure of a container lid according to an embodiment of the present invention is shown.

[0018] Figure 4 Another exploded view shows the internal structure of the container lid of a container according to an embodiment of the present invention;

[0019] Figure 5 A front view of the latch of a container lid locking device according to an embodiment of the present invention is shown.

[0020] Figure 6 A schematic diagram of the back structure of the latch of a container lid locking device according to an embodiment of the present invention is shown;

[0021] Figure 7 This diagram illustrates a container lid locking device according to an embodiment of the present invention when closed; and

[0022] Figure 8 This diagram illustrates a container lid locking device of a container according to an embodiment of the present invention when it is open. Detailed Implementation

[0023] Typical embodiments embodying 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 variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0024] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 A partial structural schematic diagram of a container according to an embodiment of the present invention is shown. For example... Figure 1 As shown, the container includes a container lid 001 and a container body 002. The container lid 001 is positioned on top of the container body 002. The container also includes a container lid locking device for locking the container lid 001 to the container body 002. The container lid locking device includes a locking tongue groove 022, a latch 003, and an automatic reset structure.

[0028] The side wall at the top of the container body 002 is recessed to fit the container lid 001. The cross-sectional area of ​​the portion of the top of the container body 002 covered by the container lid 001 is smaller than the cross-sectional area of ​​the container body 002, so that the container has a flat shape.

[0029] like Figure 1 As shown, a first through hole 011 is provided on the side of the container lid 001, and a latch 003 is provided inside the first through hole 011. The latch 003 can be operated through the first through hole 011. A locking tongue groove 022 is provided on the container body 002 at the position corresponding to the latch 003. The latch 003 and the locking tongue groove 022 on the container body 002 can be used together to limit the movement between the container body 002 and the container lid 001.

[0030] When latch 003 is inserted into latch groove 022, latch 003 is in the locked state, and container lid 001 is locked onto container body 002 to achieve container closure. When latch 003 disengages from latch groove 022, latch 003 is in the open state, allowing container lid 001 to disengage from container body 002, thereby opening the container.

[0031] To further achieve locking and enhance the security of the packaging, the container lid 001 is provided with a cable tie hole 012 on its side, and the container body 002 is provided with a locking hole 021 at the corresponding position of the cable tie hole 012 for securing with cable ties. Additionally, cable ties can also be secured through the first through hole 011.

[0032] Figure 2 This diagram illustrates the internal structure of a container lid 001 according to an embodiment of the present invention. Figure 2 As shown, the latch 003 is disposed on the inner surface of the container lid 001. The latch 003 is slidably disposed at the first through hole 011 of the container lid 001. The sliding direction of the latch 003 is perpendicular to the side wall of the container lid 001 where the first through hole 011 is located.

[0033] The container lid 001 also has an inner plate 013 inside. The inner plate 013 is set on the inner wall of the top of the container lid 001. The inner plate 013 and the container lid 001 can be fixed by welding, threaded connection or other methods. As shown in Figure 2, the inner plate 013 partially covers the latch 003, but does not affect the sliding of the latch 003.

[0034] Figure 3 and Figure 4 An exploded view of the internal structure of a container lid according to an embodiment of the present invention is shown. As shown, a sliding groove 014 is provided on the inner wall of the top surface of the container lid 001. The extending direction of the sliding groove 014 is perpendicular to the side wall of the container lid 001 where a first through hole 011 is provided. A latch 003 is slidably disposed in the sliding groove 014 so as to pass through the first through hole 011.

[0035] like Figure 4 As shown, there are two sliding grooves 014, which are arranged opposite each other and respectively on both sides of the first through hole 011. The two sides of the latch 003 are slidably disposed in the two sliding grooves 014 respectively.

[0036] An automatic reset structure is also provided between the latch 003 and the inner surface of the side wall of the container lid 001 where the first through hole 011 is located, for the automatic reset of the latch 003. The automatic reset structure is a spring 004, which may be made of austenitic stainless steel to extend its service life in humid environments. However, it should be understood that in other embodiments of the present invention, other types of elastic structures or other forms of automatic reset structures may also be used.

[0037] The inner wall of the top surface of the container lid 001 is also provided with a limiting structure, which includes a first protrusion 015 and a second protrusion 016, which respectively cooperate with the structure on the latch 003 to limit the position of the latch 003.

[0038] The first protrusion 015 has a circular outer contour, and the second protrusion 016 is T-shaped. There are two second protrusions 016, which are respectively located on both sides of the first protrusion 015.

[0039] Figure 5 , Figure 6 This diagram illustrates the front and back structural diagrams of the latch 003 of a container lid locking device according to an embodiment of the present invention. Figure 5 and Figure 6 As shown, the latch 003 includes a latch 301, with the first end and the second end at its two ends.

[0040] The first end of the latch 301 can slide into and out of the latch groove. In order to make the latch 301 slide into and / or out of the latch groove more smoothly, the first end of the latch 301 is chamfered to form a smooth, curved edge.

[0041] The latch 003 also includes an operating part 302, which is used for gripping by a person to pull the latch 003. The operating part 302 is connected to the second end of the latch 301 and forms an L-shaped structure with the latch 301.

[0042] The operating part 302 has a side wall with a first through hole 011 parallel to the container lid 001. The size of the operating part 302 is smaller than the first through hole 011 so that the operator can pull the operating part 302 out through the first through hole 011 by hand, thereby causing the operating part 302 to drive the latch 003 to slide relative to the container lid 001.

[0043] The locking tongue 301 and the operating part 302 can be integrally molded. Both can be made of polyoxymethylene plastic, giving the latch 003 advantages such as good self-lubricating properties, low coefficient of friction, and high toughness.

[0044] The latch 003 also includes a sliding part 303, which is connected to the side of the first end of the latch 301 that is away from the operating part 302.

[0045] like Figure 5 As shown, the sliding part 303 and the latch 301 are connected by a connecting part 313 perpendicular to the latch 301. A first spring mounting groove 402 is provided on the surface of the connecting part 313 facing the first through hole 011, and one end of the spring 004 is installed in the first spring mounting groove 402. Correspondingly, a second spring mounting groove 401 is provided on the inner surface of the side wall of the container lid 001 where the first through hole 011 is located, and the other end of the spring 004 is installed in the second spring mounting groove 401.

[0046] In this embodiment, two springs 004 are provided. Two first spring mounting slots 402 are provided, and the two first spring mounting slots 402 are respectively located near the two sides of the connecting part 313. Two second spring mounting slots 401 are provided, and the two second spring mounting slots 401 are respectively located near the two sides of the first through hole 011.

[0047] like Figure 5 and Figure 6 As shown, the sliding part 303 has protrusions on both sides, which are respectively adapted to the two sliding grooves 014. The protrusions are slidably disposed in the sliding grooves 014 so that the sliding part 303 can slide along the extension direction of the sliding grooves 014, thereby realizing the sliding of the latch 003 relative to the container lid 001.

[0048] In this embodiment, the sliding part 303, the locking tongue 301, and the operating part 302 can be integrally formed. The sliding part 303, the locking tongue 301, and the operating part 302 are made of polyoxymethylene plastic, which gives the overall lock 003 the advantages of good self-lubricating performance, low coefficient of friction, and high toughness.

[0049] The accompanying drawings of this invention show only one possible structure of the sliding part 303. It should be understood that in other embodiments of this invention, the sliding part 303 may be directly disposed on both sides of the locking tongue 301.

[0050] The latch 003 also includes a limiting part 304, which is used to cooperate with the first protrusion 015 and the second protrusion 016 to limit the position of the latch 003.

[0051] One end of the limiting part 304 is connected to the end of the sliding part 303 away from the locking tongue 301. The limiting part 304 can be integrally formed with the sliding part 303. Both are made of polyoxymethylene plastic, which gives the overall lock 003 the advantages of good self-lubricating performance, low coefficient of friction and high toughness.

[0052] A U-shaped opening 341 is provided at one end of the limiting part 304 away from the sliding part 303, and the shape of the U-shaped opening 341 is adapted to the outer contour of the first protrusion 015.

[0053] When the latch 003 is in the closed state, the first protrusion 015 is located in the U-shaped opening 341 to limit the position of the latch 003 when locked. The thickness of the limiting part 304 is slightly greater than the thickness of the sliding part 303. A recess 342 is provided on the side of the limiting part 304 facing the inner surface of the container lid 001. The recess 342 cooperates with the second protrusion 016 provided on the inner surface of the container lid 001 to limit the maximum sliding position of the latch 003 when it is open.

[0054] When installing the container lid locking device, first install the spring 004 in the second spring mounting groove 401, and then slide the sliding part 303 of the latch 003 into the sliding groove 014. During the sliding process, the spring 004 engages with the first spring mounting groove 402 on the latch 003, and the U-shaped opening 341 of the latch 003 abuts against the first protrusion 015, thus completing the initial installation of the lid lock.

[0055] Figure 7 and Figure 8 The diagrams show the container lid locking device of a container according to an embodiment of the present invention when it is closed and when it is open.

[0056] like Figure 7 and Figure 8As shown, the container lid 001 is affixed to the top of the container body 002. The top of the side wall of the container body 002 is recessed to fit the container lid 001. The container body 002 and the container lid 001 are respectively provided with a locking hole 021 and a cable tie hole 012, and the part of the container body 002 corresponding to the buckle 003 is also provided with a locking tongue groove 022.

[0057] The container body 002 closes by inserting its side wall into the lower surface of the container lid 001. The container body 002 and the container lid 001 are locked together by the locking tongue 301 on the latch 003 inserting into the locking tongue groove 022 on the side wall of the container body 002. Specifically, the latch 003 can be manually pulled out using the operating part 302. After the container lid 001 is in place, the latch 003 is released, causing it to automatically reset under the action of the spring 004. This allows the locking tongue 301 to insert into the locking tongue groove 022, keeping the latch 003 in the locked state.

[0058] Alternatively, the locking tongue groove 022 and the locking tongue 301 can be structurally coordinated, for example, by setting a beveled surface, so that when the container body 002 is covered with the container lid 001, the latch 003 can automatically slide outward to compress the spring 004. When the latch 003 is in the closed state, the locking hole 021 communicates with the cable tie hole 012, and a cable tie can be passed through the locking hole 021 and the cable tie hole 012 to secure the container lid 001 to the container body 002.

[0059] When it is necessary to open the container lid 001, the locking tongue 301 of the latch 003 is pulled out from the locking tongue groove 022 by the operating part 302, so that the locking tongue 301 is disengaged from the locking tongue groove 022, so that the latch 003 is in the open state, thereby allowing the container lid 001 to be disengaged from the container body 002, and the container can be opened.

[0060] The container lid locking device and container of this embodiment include a latch, a locking tongue groove, and an automatic reset structure. The latch is disposed on the inner surface of the container lid and can slide relative to the lid to insert into or disengage from the locking tongue groove on the container body. When the locking tongue is inserted into the locking tongue groove, the latch is locked, and the automatic reset structure ensures the container lid is stably locked to the container body. The container lid locking device of this invention has a simple overall structure and ensures the stability of the container lid's locking on the container body. The latch being disposed on the inner surface of the lid provides a flat upper surface, eliminating concerns about the impact of rain or other severe weather on the contents. The latch being positioned near the lid balances the force on the locked lid, ensuring the safety of the locking mechanism. Furthermore, the container lid locking device uses a sliding latch to lock the lid and container body, making the overall operation simple and highly operable.

[0061] Although the 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 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 container lid locking device for locking a container lid to a container body in a container, characterized by The container cover locking device comprises: a lock tongue slot arranged on the side wall of the container body; a lock catch arranged on the side of the container cover, the lock catch being slidably connected to the inner surface of the top of the container cover, the lock catch comprising a lock tongue, the lock catch being slidable relative to the container cover so that the lock tongue can be inserted into or separated from the lock tongue slot, the lock catch being in a locked state when the lock tongue is inserted into the lock tongue slot, the container cover being locked on the container body; an automatic reset structure connected to the lock catch for resetting the lock catch and keeping the lock catch in the locked state; the lock catch comprising a limiting portion, the limiting portion comprising a U-shaped opening, the shape of the U-shaped opening being adapted to a first protrusion on the inner surface of the container cover, the first protrusion being clamped in the opening of the U-shaped opening when the lock catch is in the locked state; the limiting portion being provided with a recess on the side facing the inner surface of the container cover, the recess being used for cooperating with a second protrusion arranged on the inner surface of the container cover, the recess being provided with two, the U-shaped opening being located between the two recesses.

2. The container lid locking device of claim 1, wherein the automatic reset structure comprising a spring, one end of the spring being connected to the inner surface of the side wall of the container cover, the other end of the spring being connected to the lock catch.

3. The container lid locking device of claim 1, wherein the lock catch further comprising an operating portion, the operating portion being connected to the lock tongue, the operating portion being used for driving the lock tongue to slide relative to the container cover.

4. The container lid locking device of claim 1, wherein the lock catch further comprising a sliding portion, the sliding portion being connected to the lock tongue, the sliding portion being slidably arranged in a sliding groove on the inner surface of the container cover.

5. The container lid locking device of claim 4, wherein the limiting portion being connected to the sliding portion.

6. The container lid locking device of claim 5, wherein the U-shaped opening being arranged on the end of the limiting portion away from the sliding portion.

7. A container characterized in that, The container cover locking device comprises: a container body; a container cover arranged on the top of the container body, the inner wall of the top surface of the container cover further comprising a limiting structure, the limiting structure comprising a first protrusion and a second protrusion; and the lock tongue slot of the container cover locking device being arranged on the side wall of the container body, the lock catch of the container cover locking device being slidably arranged on the inner surface of the top of the container cover; the lock catch being slidable relative to the container cover so that the lock tongue of the lock catch can be inserted into the lock tongue slot, thereby locking the container cover on the container body.

8. The container of claim 7, wherein the side wall of the container cover being provided with a first through hole corresponding to the position of the lock catch, the lock catch being slidable relative to the container cover, the lock catch being able to extend out of the first through hole.

9. The container of claim 7, wherein the side of the container cover further being provided with a cable tie hole, the container body being provided with a lock hole corresponding to the position of the cable tie hole, the cable tie hole and the lock hole being used for the cable tie to pass through so as to bundle the container cover on the container body.

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