A container lid locking device and a container

Abstract

The utility model relates to the field of holding container, especially a container cover locking device and container, locking device includes lock tongue groove and lock tongue piece, lock tongue groove sets up on the container body, and the inner surface of lock tongue piece and the top of container cover is slidably connected, and lock tongue piece and lock tongue groove plug -in cooperation, the side of container cover is provided with operating hole, and the hand passes through operating hole and acts on lock tongue piece, the container cover locking device of the utility model sets up in the inside of container side, makes container cover have relatively flat upper surface, and need not worry about the influence of rain and other bad weather to goods in the container.

Description

Technical Field

[0001] This utility model discloses a container lid locking device and a container, which are applied in the field of container technology, specifically relating to the dustproof, waterproof and anti-theft functions of the container lid. Background Technology

[0002] With the rapid development of China's economy, the logistics industry has also flourished. Compared to the transportation of general goods, liquid transportation places higher demands on transportation equipment. Containers are generally defined as packaging materials capable of storing and transporting various non-hazardous liquids or bulk goods. Compared to traditional transport packaging methods, they significantly reduce costs associated with loading, unloading, packaging, transportation, and material management, offering substantial economic advantages. Therefore, they are more widely used in various fields such as chemicals, petroleum, food, feed, and agricultural products. Containers typically require a lid locking device to achieve functions such as dustproofing, waterproofing, and anti-theft. Currently, most containers use spring-loaded or mechanically swinging lid locking devices to achieve lid closure. Regardless of the locking structure, the locking part of the container lid is usually exposed, resulting in an uneven surface with bumps and grooves. This exposed locking part also poses a risk of leakage from rain. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a container lid locking device and a container. The technical solution adopted by this utility model is as follows:

[0004] This utility model provides a container lid locking device, comprising:

[0005] A locking tongue groove is provided on the upper edge of the side wall of the container body;

[0006] A locking tongue is slidably connected to the inner surface of the top of the container lid; the locking tongue is inserted into the locking tongue groove to keep the container lid closed.

[0007] An operating hole is provided on the side of the container lid. A hand passes through the operating hole and acts on the latch to push the latch to slide laterally, so that the latch can disengage from or insert into the latch groove.

[0008] Preferably, the latch includes a latch body, the front end of which is provided with a latch tongue portion, which is engaged with the latch groove;

[0009] The inner surface of the container lid is provided with a mounting groove on the side near the side, the locking tongue is disposed in the mounting groove, the end of the mounting groove is provided with a guide hole, and the locking tongue is slidably engaged with the guide hole.

[0010] Preferably, both sides of the locking tongue are provided with side wings, and both sides of the mounting groove are provided with wing holes, and the side wings are slidably engaged in the wing holes.

[0011] Preferably, the front of the locking tongue and the bottom of the mounting groove are matched by a multi-position locking structure;

[0012] The multi-position structure includes two slots disposed at the bottom of the mounting groove and a limiting protrusion disposed on the front of the latch body, wherein the limiting protrusion slides and engages with the two slots.

[0013] Preferably, an automatic reset structure is provided in the mounting groove, and the automatic reset structure abuts against the rear end of the locking tongue body so that the locking tongue can automatically reset and remain in a locked state.

[0014] Preferably, it includes a pressure plate and an automatic reset structure;

[0015] The pressure plate is disposed on the top inner side of the container lid. A sliding guide structure is provided on the pressure plate. After the hand passes through the operation hole, it acts on the pressure plate. The pressure plate pushes the locking tongue to slide laterally through the sliding guide structure, so that the locking tongue is disengaged from the locking tongue groove.

[0016] The automatic reset structure is disposed in the mounting groove and abuts against the rear end of the locking tongue, so that the locking tongue can automatically reset and remain in a locked state.

[0017] Preferably, both ends of the mounting groove are provided with limiting portions, and the limiting portions are located above the guide hole;

[0018] Both ends of the pressure plate are provided with hooks; the rear part of the locking tongue is provided with a locking hole, and the hook passes through the locking hole and engages with the limiting part for limiting.

[0019] Preferably, the sliding guide structure includes a first inclined surface and a second inclined surface, wherein the first inclined surface and the second inclined surface are in sliding contact;

[0020] The first inclined surface is disposed on the inner side of the pressure plate member, and the first inclined surface faces the upper part of the container;

[0021] The second bevel is disposed on the outer side of the latch, and the second bevel faces the lower part of the container.

[0022] Preferably, the automatic reset structure is a spring; or, the automatic reset structure is a plastic spring.

[0023] Preferably, there are one or two locking tongues.

[0024] This utility model also provides a container, including the container lid locking device described above. The top of the side wall of the container body is recessed inward to fit the container lid. The top of the side wall of the container body is provided with a matching recess relative to the container lid locking device, and the end of the recess is provided with the locking tongue groove. The side of the container lid is also provided with a cable tie hole, and the container body is provided with a locking hole at a position relative to the cable tie hole. The cable tie hole and the locking hole are fixed by a cable tie.

[0025] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0026] The container lid locking device of this utility model is located inside the side of the container, so that the container lid has a relatively flat upper surface, so that there is no need to worry about the impact of rain or other bad weather on the goods inside the container. The container lid locking device adopts a sliding method and can automatically reset, so that the locking tongue can be more easily inserted into the locking tongue groove. In addition, the container lid locking device has a compact structure, and the parts are easy to replace while ensuring a stable lock. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the container lid being placed with the opening facing upwards in Embodiment 1 of this utility model;

[0029] Figure 2 This is a structural schematic diagram of the container lid locking device in an exploded state according to Embodiment 1 of this utility model (the container lid is placed with the opening facing upwards).

[0030] Figure 3 This is a front structural diagram of the locking tongue in Embodiment 1 of this utility model (the side of the locking tongue facing upwards when the container lid is assembled).

[0031] Figure 4 This is a schematic diagram of the container lid and container body in the assembled state in Embodiment 1 of this utility model;

[0032] Figure 5 This is a cross-sectional view of the container lid locking device in Embodiment 1 of this utility model when it is closed;

[0033] Figure 6 This is a schematic diagram of the container lid being placed with the opening facing upwards in Embodiment 2 of this utility model;

[0034] Figure 7 This is a structural schematic diagram of the container lid locking device in an exploded state according to Embodiment 2 of this utility model (the container lid is placed with the opening facing upwards).

[0035] Figure 8This is a front structural diagram of the locking tongue in Embodiment 2 of this utility model (the side of the locking tongue facing upwards when the container lid is assembled).

[0036] Figure 9 This is a schematic diagram of the structure of the automatic reset structure using a plastic spring in Embodiment 2 of this utility model;

[0037] Figure 10 This is a schematic diagram of the container lid and container body in the assembled state in Embodiment 3 of this utility model;

[0038] Figure 11 This is a schematic diagram of the container lid with its opening facing upwards in Embodiment 3 of this utility model;

[0039] Figure 12 This is an exploded view of the internal structure of the container lid locking device in Embodiment 3 of this utility model;

[0040] Figure 13 This is a schematic diagram of the installation inside the mounting slot in Embodiment 3 of this utility model;

[0041] Figure 14 This is a front structural diagram of the locking tongue in Embodiment 3 of this utility model (the side of the locking tongue facing upwards when the container lid is assembled).

[0042] Figure 15 This is a schematic diagram of the back structure of the locking tongue in Embodiment 3 of this utility model;

[0043] Figure 16 This is a schematic diagram of the back structure of the pressure plate component in Embodiment 3 of this utility model (i.e., the side that comes into contact with the hand).

[0044] Figure 17 This is a schematic diagram of the front structure of the pressure plate component in Embodiment 3 of this utility model (the side facing upwards in the assembled state).

[0045] Figure 18 This is a schematic diagram of the container lid locking device when closed in Embodiment 3 of this utility model;

[0046] Figure 19 This is a schematic diagram of the container lid locking device when it is opened in Embodiment 3 of this utility model;

[0047] Figure 20 This is a schematic diagram showing the separation of the container lid and the container body in Embodiment 3 of this utility model;

[0048] Figure 21 This is a schematic diagram of the cross-sectional structure of the container body in the concave part in Embodiment 3 of this utility model;

[0049] Figure 22 This is a schematic diagram of the container lid being placed with the opening facing upwards in Embodiment 4 of this utility model;

[0050] Figure 23 This is an exploded view of the internal structure of the container lid locking device in Embodiment 4 of this utility model;

[0051] Figure 24 This is a schematic diagram of the front structure of the pressure plate component in Embodiment 4 of this utility model (the side facing upwards in the assembled state).

[0052] Figure 25 This is a schematic diagram of the back structure of the locking tongue in Embodiment 4 of this utility model;

[0053] Figure 26 This is a schematic diagram of the container lid being placed with the opening facing upwards in Embodiment 5 of this utility model.

[0054] Explanation of reference numerals in the attached drawings: 1. Container lid; 101. Mounting groove; 102. Reset component groove; 103. Guide insertion hole; 104. Limiting part; 105. Wing hole; 2. Container body; 3. Locking tongue groove; 4. Locking tongue component; 401. Locking tongue component; 402. Locking tongue part; 403. Pressing hole; 404. Locking hole; 405. Side wing; 5. Pressure plate component; 501. Hook; 6. Automatic reset structure component; 7. First inclined surface; 8. Second inclined surface; 9. Operating hole; 10. Recess; 11. Cable tie hole; 12. Locking hole; 13. Inner plate; 14. Reinforcing rib; 15. Locking groove; 16. Limiting protrusion. Detailed Implementation

[0055] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0056] Example 1

[0057] like Figures 1 to 5 As shown, this embodiment discloses a container lid locking device, including a locking tongue groove 3, a locking tongue 4, and an operating hole 9.

[0058] The locking tongue groove 3 is located on the upper edge of the side wall of the container body 2; the locking tongue 4 is slidably connected to the inner surface of the top of the container lid 1; the locking tongue 4 and the locking tongue groove 3 are engaged. An operating hole 9 is provided on the side of the container lid 1. A hand passes through the operating hole 9 and acts on the locking tongue 4 to push it to slide laterally, allowing the locking tongue 4 to disengage from or insert into the locking tongue groove 3. The front bottom surface of the locking tongue 402 has a smooth, curved edge, facilitating the smooth sliding of the container lid 1 into the locking tongue groove 3 when placed on the container.

[0059] like Figure 2As shown, specifically, the locking tongue 4 includes a locking tongue body 401, and a locking tongue portion 402 is provided at the front end of the locking tongue body 401. The locking tongue portion 402 is inserted and engaged with the locking tongue groove 3; an installation groove 101 is provided on the inner surface of the container lid 1 near the side.

[0060] The latch body 401 is disposed in the mounting groove 101 and slides within the mounting groove 101. Side wings 405 are provided on both sides of the latch body 401, and wing holes 105 are provided on both side walls of the mounting groove 101. The side wings 405 are slidably engaged within the wing holes 105. A guide hole 103 is provided at the end of the mounting groove 101, and the latch body 402 is inserted into and slidably fitted into the guide hole 103.

[0061] In this embodiment, the front of the locking tongue 401 (i.e. the side facing upwards in the assembled state of the container lid 1) and the bottom of the mounting groove 101 are matched by a multi-position locking structure.

[0062] like Figure 2 and 3 As shown, the multi-position structure includes two slots 15 located at the bottom of the mounting groove 101, and a limiting protrusion 16 located on the front of the latch body 401. In use, the limiting protrusion 16 slides into the two slots 15. When the limiting protrusion 16 slides into the left slot 15, the latch part 402 inserts into the latch groove 3, at which point the container lid is locked. When the limiting protrusion 16 slides into the right slot 15, the latch part 402 slides out of the latch groove 3, at which point the container lid is unlocked.

[0063] In this embodiment, the number of locking tongues 4 is one.

[0064] Example 2

[0065] Based on the structure of the locking tongue groove 3, locking tongue 4, and operating hole 9 in Embodiment 1 above, this embodiment eliminates the multi-position limiting structure. In this embodiment, the locking tongue 4 can automatically reset and maintain the locked state through the automatic reset structure 6. Figure 6 and 7 As shown, an automatic reset structure 6 is provided in the mounting groove 101, and the automatic reset structure 6 abuts against the rear end of the locking tongue body 401.

[0066] When in use, the hand passes through the operating hole 9 and acts on the locking tongue 4, pushing the locking tongue 4 to slide laterally backward, so that the locking tongue part 402 of the locking tongue 4 disengages from the locking tongue groove 3, at which time the container lid is in the unlocked state.

[0067] When the locking tongue 4 is pushed to slide laterally backward, it will elastically compress the automatic reset structure 6. When the hand releases the locking tongue 4, the locking tongue 4 will automatically reset under the action of the automatic reset structure 6, so that the container lid is in the locked state.

[0068] In this embodiment, the automatic reset structure 6 is a spring. For example... Figure 8 As shown, the rear end of the locking tongue body 401 is provided with a pressing hole 403, and the automatic reset structure 6 is in pressing contact with the pressing hole 403.

[0069] In addition to this embodiment, such as Figure 9 As shown, the automatic reset structure 6 can be in the form of a plastic spring, which is integrally formed at the rear end of the locking tongue 4.

[0070] Example 3

[0071] like Figures 10 to 13 As shown, this embodiment discloses a container lid locking device, including a locking tongue groove 3, a locking tongue component 4, a pressure plate component 5, and an automatic reset structure component 6.

[0072] The locking tongue groove 3 is located on the upper edge of the side wall of the container body 2. The locking tongue 4 is slidably connected to the inner surface of the top of the container lid 1, and the locking tongue 4 is inserted into the locking tongue groove 3. The pressure plate 5 is located on the inner side of the top of the container lid 1. The pressure plate 5 is provided with a sliding guide structure. The pressure plate 5 pushes the locking tongue 4 to slide laterally through the sliding guide structure so that the locking tongue 4 is disengaged from the locking tongue groove 3. An operating hole 9 is provided on the side of the container lid 1. A hand passes through the operating hole 9 and acts on the pressure plate 5. The automatic reset structure 6 is connected to the locking tongue 4 so that the locking tongue 4 can automatically reset and remain locked.

[0073] like Figure 14 and 15 As shown, the locking tongue 4 includes a locking tongue body 401, a locking tongue portion 402 is provided at the front end of the locking tongue body 401, and the locking tongue portion 402 is inserted into the locking tongue groove 3; a pressing hole 403 is provided at the rear end of the locking tongue body 401, and the automatic reset structure 6 is in pressing contact with the pressing hole 403.

[0074] The inner surface of the container lid 1 is provided with a mounting groove 101 on one side near the side. The mounting groove 101 is provided with two reset component grooves 102. The automatic reset structure 6 is arranged in the reset component groove 102. Both ends of the mounting groove 101 are provided with guide holes 103. The locking tongue 402 is inserted and slidably engaged with the guide holes 103.

[0075] like Figure 12 , 14 As shown in Figure 16, both ends of the mounting groove 101 are provided with limiting parts 104, which are located above the guide insertion hole 103. At the same time, the rear part of the locking tongue part 402 is provided with a locking hole 404, and both ends of the pressure plate part 5 are provided with hooks 501. After the pressure plate part 5 is assembled in the mounting groove 101, the hooks 501 pass through the locking holes 404 and engage with the limiting parts 104 for limiting.

[0076] In this embodiment, the bottom front surface of the latch tongue 402 is a smooth arc-shaped edge, which makes it easy for the container lid 1 to slide smoothly into the latch tongue groove 3 through the inclined surface of the latch tongue 402 when it is placed on the container.

[0077] In this embodiment, there are two locking tongues 4, arranged symmetrically on the left and right sides. A pressure plate 5 controls both locking tongues 4. Figure 14 , 15 As shown in Figure 17, the sliding guide structure includes a first inclined surface 7 and a second inclined surface 8, with the first inclined surface 7 and the second inclined surface 8 in sliding contact. A set of first inclined surfaces 7 (a total of four first inclined surfaces 7) is provided on both inner sides of the pressure plate 5. Each set of first inclined surfaces 7 consists of two surfaces, and the first inclined surfaces 7 on the same side are symmetrically arranged. In the assembled state, the first inclined surfaces 7 face the upper part of the container.

[0078] Each of the two outer sides of the latch 4 has a second inclined surface 8, and the second inclined surfaces 8 on the two latches 4 are symmetrically arranged so that they can cooperate with the first inclined surface 7 on the pressure plate 5. In the assembled state, the second inclined surfaces 8 face the lower part of the container.

[0079] like Figure 10 , 18 As shown in Figure 21, this embodiment also discloses a container, which includes the container lid locking device described above. The top of the side wall of the container body 2 is recessed inward to fit the container lid 1, that is, the cross-sectional area of ​​the part of the container body 2 covered by the container lid 1 is smaller than the cross-sectional area of ​​other parts of the container body 2.

[0080] The top of the side wall of the container body 2 is provided with a matching recess 10 relative to the container lid locking device. The end of the recess 10 is provided with a locking tongue groove 3. The hand can be inserted into the recess 10 through the operating hole 9, thereby pressing the pressure plate 5.

[0081] The container lid 1 is also provided with a cable tie hole 11 on its side, and the container body 2 is provided with a locking hole 12 at the position of the cable tie hole 11. The cable tie hole 11 and the locking hole 12 are fixed by a cable tie to further lock the container lid 1 and ensure the safety of the goods during transportation.

[0082] In this embodiment, an inner plate 13 is also provided on the inner surface of the top of the container lid 1. A reinforcing rib 14 is provided on the inner sidewall of the recess 10.

[0083] like Figures 18 to 20As shown, the container opening method in this embodiment (i.e., the operation process of the container lid locking device) is as follows: After the hand passes through the operating hole 9, it can be inserted into the recess 10 and push the pressure plate 5 upward. The pressure plate 5, through the sliding guide structure (i.e., the first inclined surface 7 and the second inclined surface 8 slide in contact), drives the locking tongues 402 on both sides to retract and disengage from the locking tongue groove 3. In this way, the container lid locking device can be unlocked, and then the container lid 1 can be removed from the container body 2.

[0084] In this embodiment, the automatic reset structure 6 is a spring.

[0085] Example 4

[0086] like Figure 22 and 23 As shown, in this embodiment, there is one locking tongue 4, and a guide hole 103 is provided at one end of the mounting groove 101. One pressure plate 5 controls one locking tongue 4. To ensure the stability of the engagement between the locking tongue 4 and the pressure plate 5, and to enable the locking tongue 4 to retract stably, the tail of the locking tongue 4 is lengthened in this embodiment, and the sliding guide structure is also optimized and modified.

[0087] Specifically, the sliding guide structure includes a first inclined surface 7 and a second inclined surface 8, with the first inclined surface 7 and the second inclined surface 8 in sliding contact. For example... Figure 24 and 25 As shown, a set of first inclined surfaces 7 (a total of four first inclined surfaces 7) are provided on both inner sides of the pressure plate 5. Each set of first inclined surfaces 7 consists of two surfaces, and the first inclined surfaces 7 on the same side are arranged in parallel to each other. In the assembled state, the first inclined surfaces 7 face the upper part of the container.

[0088] Both outer sides of the latch 4 are provided with a set of second inclined surfaces 8 (there are a total of four second inclined surfaces 8 on the latch 4). Each set of second inclined surfaces 8 consists of two surfaces, and the sets of second inclined surfaces 8 on the same side are arranged parallel to each other, so that they can cooperate with the first inclined surface 7 on the pressure plate 5. In the assembled state, the second inclined surfaces 8 face the lower part of the container.

[0089] In this embodiment, the automatic reset structure 6 uses a spring. Two springs are used, one located in the middle of the latch 4 and the other at the tail of the latch 4.

[0090] The remaining structures in this embodiment are the same as those in Embodiment 3.

[0091] Example 5

[0092] like Figure 26 As shown, in this embodiment, the automatic reset structure 6 is a plastic spring sheet, which is integrally formed at the rear end of the locking tongue 4. The remaining structures in this embodiment are the same as in Embodiment 3.

[0093] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A container lid locking device, characterized in that, include: Locking tongue groove (3), the locking tongue groove (3) is provided on the upper edge of the side wall of the container body (2); The locking tongue (4) is slidably connected to the inner surface of the top of the container lid (1); the locking tongue (4) is inserted into the locking tongue groove (3) to keep the container lid closed. An operating hole (9) is provided on the side of the container lid (1). After the hand passes through the operating hole (9), it acts on the locking tongue (4) to push the locking tongue (4) to slide laterally so that the locking tongue (4) can disengage from or be inserted into the locking tongue groove (3).

2. The container lid locking device according to claim 1, characterized in that: The locking tongue (4) includes a locking tongue body (401), and a locking tongue portion (402) is provided at the front end of the locking tongue body (401). The locking tongue portion (402) is inserted into the locking tongue groove (3). The inner surface of the container lid (1) is provided with a mounting groove (101) on one side near the side. The locking tongue (401) is provided in the mounting groove (101). The end of the mounting groove (101) is provided with a guide hole (103). The locking tongue (402) is inserted and slidably engaged with the guide hole (103).

3. The container lid locking device according to claim 2, characterized in that: Both sides of the latch body (401) are provided with side wings (405), and both sides of the mounting groove (101) are provided with wing holes (105), and the side wings (405) are slidably engaged in the wing holes (105).

4. The container lid locking device according to claim 3, characterized in that: The front of the locking tongue (401) and the bottom of the mounting groove (101) are limited and engaged by a multi-positioning structure; The multi-position structure includes two slots (15) at the bottom of the mounting groove (101) and a limiting protrusion (16) on the front of the locking tongue (401). The limiting protrusion (16) slides and engages with the two slots (15).

5. The container lid locking device according to claim 3, characterized in that: An automatic reset structure (6) is provided in the mounting groove (101). The automatic reset structure (6) abuts against the rear end of the locking tongue (401) so that the locking tongue (4) can automatically reset and remain locked.

6. The container lid locking device according to claim 2, characterized in that: Includes pressure plate (5) and automatic reset structure (6); The pressure plate (5) is located on the top inner side of the container lid (1). The pressure plate (5) is provided with a sliding guide structure. After the hand passes through the operation hole (9), it acts on the pressure plate (5). The pressure plate (5) pushes the locking tongue (4) to slide laterally through the sliding guide structure so that the locking tongue (4) disengages from the locking tongue groove (3). The automatic reset structure (6) is disposed in the mounting groove (101) and abuts against the rear end of the locking tongue (401) so that the locking tongue (4) can automatically reset and remain locked.

7. The container lid locking device according to claim 6, characterized in that: Both ends of the mounting groove (101) are provided with limiting parts (104), and the limiting parts (104) are located above the guide hole (103); Both ends of the pressure plate (5) are provided with hooks (501); the rear part of the locking tongue (402) is provided with a locking hole (404), and the hook (501) passes through the locking hole (404) and engages with the limiting part (104) for limiting.

8. The container lid locking device according to claim 6, characterized in that: The sliding guide structure includes a first inclined surface (7) and a second inclined surface (8), wherein the first inclined surface (7) and the second inclined surface (8) are in sliding contact; The first inclined surface (7) is disposed on the inner side of the pressure plate (5), and the first inclined surface (7) faces the upper part of the container; The second inclined surface (8) is disposed on the outer side of the locking tongue (4), and the second inclined surface (8) faces the lower part of the container.

9. The container lid locking device according to claim 1, characterized in that: The locking tongue (4) can be one or two.

10. The container lid locking device according to claim 5 or 6, characterized in that: The automatic reset structure (6) is a spring; or, the automatic reset structure (6) is a plastic spring.

11. A container comprising the container lid locking device according to any one of claims 1 to 9, characterized in that: The top of the side wall of the container body (2) is recessed inward to fit the container lid (1). The top of the side wall of the container body (2) is provided with a matching recess (10) relative to the container lid locking device, and the end of the recess (10) is provided with the locking tongue groove (3).

12. The container according to claim 11, characterized in that: The container lid (1) is also provided with a cable tie hole (11) on its side. The container body (2) is provided with a lock hole (12) at a position relative to the cable tie hole (11). The cable tie hole (11) and the lock hole (12) are fixed by a cable tie.

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