Hasp for box

Abstract

This utility model relates to the field of locking devices, and in particular to a lock for a box, comprising an upper lock disposed on the upper cover of the box and a lower lock fixed to the box body. The upper lock includes an upper lock cover and a locking element. One side of the upper lock cover is rotatably disposed on the outside of the upper cover of the box, and the other side of the upper lock cover is rotatably connected to the locking element, which is located on the side of the upper lock cover facing the box body. The locking element is configured as a strip structure, and the locking element is provided with a snap-fit ​​portion protruding from the upper lock cover. A corresponding slot is provided on the side of the lower lock facing away from the box body. When the upper lock cover and the lower lock are locked, the snap-fit ​​portion is engaged in the slot. The snap-fit ​​portion of the locking element protrudes from the upper lock cover. When locked, under the squeezing force of the upper lock cover closing, the snap-fit ​​portion is engaged in the slot. At the same time, the locking element also deforms under the squeezing force to generate a deformation recovery force. When unlocking is required, the deformation force of the locking element helps the user to unlock easily, making it very convenient and labor-saving, and applicable to a wider range of people.

Description

Technical Field

[0001] This utility model relates to the field of locking equipment technology, and in particular to a lock for boxes. Background Technology

[0002] As people's living standards continue to improve, the frequency of travel is also gradually increasing. When traveling, people typically carry bags to carry their luggage. Bags are used to store clothing, personal care products, and souvenirs needed for the trip. To prevent theft, most bags on the market are equipped with locks. Existing locks typically have a hook on the inside of the upper lock and a slot on the outside of the lower lock. The upper and lower locks are locked in the slot via the hook. Opening them requires considerable force, making them laborious and cumbersome to use. Utility Model Content

[0003] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a lock for boxes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A lock for locking a box or case; it includes an upper lock disposed on the upper cover of the box and a lower lock fixed to the main body of the box; the upper lock includes an upper lock cover and a locking member; one side of the upper lock cover is rotatably disposed on the outside of the upper cover of the box, and the other side of the upper lock cover is rotatably connected to the locking member, and the locking member is located on the side of the upper lock cover facing the box; the locking member is configured as a strip structure, and the locking member is provided with a snap-fit ​​portion protruding from the upper lock cover; the side of the lower lock opposite to the main body of the box is provided with a corresponding slot; when the upper lock cover and the lower lock are locked, the snap-fit ​​portion is engaged in the slot, and the locking member generates a deformation recovery force under the squeezing force of the lower lock, and at least one end of the locking member abuts against the upper lock cover.

[0006] By adopting the above technical solution, the locking part of the lock protrudes from the upper locking cover. When locked, under the squeezing force of the closing upper locking cover, the locking part engages in the slot. At the same time, the lock also deforms under the squeezing force to generate a deformation recovery force. When unlocking is required, the deformation force of the lock helps the user unlock easily, making it very convenient and effortless to use, and applicable to a wider range of people.

[0007] Furthermore, the locking element is made of steel wire, which has a large elastic force, is easy to deform and reset, has a simple structure, and low cost.

[0008] Furthermore, the lock includes a first connecting portion, a snap-fit ​​portion, and a second connecting portion. The first connecting portion and the second connecting portion have the same structure and are both L-shaped. The upper lock cover is provided with a first mounting portion and a second mounting portion. One end of the first connecting portion is movably disposed within the first mounting portion, and one end of the second connecting portion is disposed within the second mounting portion. The snap-fit ​​portion connects the other ends of the first connecting portion and the other ends of the second connecting portion. When the upper lock and the lower lock are separated, the snap-fit ​​portion is disposed on opposite sides of the first connecting portion and the second connecting portion. When the upper lock is opened, the elastic deformation force of the first connecting portion and the second connecting portion can be used to assist in unlocking, requiring less force from the user and making it more convenient to use.

[0009] Furthermore, the snap-fit ​​part is designed with a U-shaped structure, which is simple in structure, increases the contact area under force, and can also increase the force of the restoring deformation generated by the snap-fit ​​contact, thus effectively protecting the snap-fit ​​part.

[0010] Furthermore, the locking mechanism also includes a first elastic member and a second elastic member. A first mounting groove is provided within the first mounting portion, and the first elastic member is disposed within the first mounting groove. One end of the first connecting portion abuts against the side of the first elastic member. A second mounting groove is provided within the second mounting portion, and the second elastic member is disposed within the second mounting groove. One end of the second connecting portion abuts against the side of the second elastic member, providing elastic contact and thus protecting the first and second connecting portions and extending their service life.

[0011] Furthermore, the first mounting part and the second mounting part have the same structure. The first mounting part includes a mounting block and a mounting plate. One side of the mounting block is fixedly connected to the upper locking cover, and the mounting block has an open first mounting groove inside. The other side of the mounting block is also open. The mounting plate is located on the other side of the mounting block and is screwed to the mounting block. The end of the mounting block near the snap-fit ​​part has a connecting groove for communicating with the first mounting groove. One end of the first connecting part passes through the connecting groove and is located in the first mounting groove, and abuts against the side of the first elastic member, making installation and disassembly more convenient and reducing maintenance costs.

[0012] Furthermore, the structure of the first elastic element is the same as that of the second elastic element. Both the first and second elastic elements are U-shaped sheet structures, which are simple in structure and can provide elastic restoring force for the locking part. They also help protect the locking element, prevent deformation caused by excessive force, and extend its service life.

[0013] Furthermore, the lower lock has a reverse-bent arc surface on the inner side of the slot, which serves to prevent misalignment and facilitates the user in opening the lock cover. The outer end of the slot has an arc-shaped chamfer structure, which serves as a guide, allowing the locking part to be smoothly inserted into the slot when locking.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] The locking part of this invention protrudes from the upper locking cover. When locked, the locking part engages with the slot under the pressure of the closing upper locking cover. Simultaneously, the locking part deforms under the pressure to generate a deformation recovery force. When unlocking is required, the deformation force of the locking part helps the user unlock easily, making it very convenient and effortless to use, and applicable to a wider range of users. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of the lock for boxes according to this utility model.

[0017] Figure 2 This is a structural schematic diagram from another perspective of one embodiment of the lock for boxes of this utility model.

[0018] Figure 3 This is an exploded structural diagram of one embodiment of the lock for boxes of this utility model.

[0019] Figure 4 This is a side view of one embodiment of the locking mechanism of the box lock of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of one embodiment of the lower lock of the box lock of this utility model.

[0021] Explanation of the reference numerals in the figure:

[0022] 1. Lock for the box; 2. Locking; 21. Locking cover; 211. Clearance opening; 22. Locking element; 221. First connecting part; 222. Snap-fit ​​part; 223. Second connecting part; 23. First mounting part; 231. First mounting groove; 232. Mounting block; 233. Mounting plate; 234. Connecting groove; 24. Second mounting part; 241. Second mounting groove; 25. First elastic element; 26. Second elastic element; 3. Locking; 31. Snap-fit ​​groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0024] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, the above terms should not be construed as limitations on this utility model.

[0025] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0026] The following is in conjunction with the appendix Figure 1-5 The embodiments of this utility model will be described in further detail below.

[0027] A lock 1 for locking a box or container. For example... Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, it includes an upper lock 2 disposed on the upper cover of the box and a lower lock 3 fixed to the box body. The upper lock 2 includes an upper lock cover 21 and a locking member 22. One side of the upper lock cover 21 is rotatably disposed on the outside of the upper cover of the box, and the other side of the upper lock cover 21 is rotatably connected to the locking member 22, with the locking member 22 located on the side of the upper lock cover 21 facing the box body. The locking member 22 is configured as a strip structure, and the locking member 22 is provided with a snap-fit ​​portion 222 protruding from the upper lock cover 21. The side of the lower lock 3 facing away from the box body is provided with a corresponding slot 31. When the upper lock cover 21 and the lower lock 3 are locked, the snap-fit ​​portion 222 is engaged in the slot 31, and the locking member 22 generates a deformation recovery force under the squeezing force of the lower lock 3, and at least one end of the locking member 22 abuts against the upper lock cover 21.

[0028] The locking element 22 has a latching portion 222 protruding from the locking cover 21. When locked, under the pressure of the closing locking cover 21, the latching portion 222 engages with the slot 31. Simultaneously, the locking element 22 deforms under the pressure to generate a deformation recovery force. When unlocking is required, the deformation force of the locking element 22 helps the user unlock easily, making it very convenient, less strenuous, and suitable for a wider range of users.

[0029] In some embodiments, please refer to Figure 2 , Figure 3 The locking element 22 is designed with a steel wire structure, which has a large elastic force, is easy to deform and reset, has a simple structure, and is low in cost. Of course, the locking element 22 can also use an elastic column structure.

[0030] In some embodiments, please refer to Figure 2 , Figure 3 The lock 22 includes a first connecting portion 221, a snap-fit ​​portion 222, and a second connecting portion 223. The first connecting portion 221 and the second connecting portion 223 have identical structures and are both L-shaped. The upper lock cover 21 has a first mounting portion 23 and a second mounting portion 24. One end of the first connecting portion 221 is movably disposed within the first mounting portion 23, and one end of the second connecting portion 223 is disposed within the second mounting portion 24. The snap-fit ​​portion 222 connects the other ends of the first connecting portion 221 and the second connecting portion 223. When the upper lock 2 is separated from the lower lock 3, the snap-fit ​​portion 222 is positioned out of sync with the first connecting portion 221 and the second connecting portion 223. When opening the upper lock 2, the elastic deformation force of the first connecting portion 221 and the second connecting portion 223 can be used to assist in unlocking, requiring less force from the user and making it more convenient to use.

[0031] Preferably, the snap-fit ​​part 222 is configured as a U-shaped structure, which is simple in structure, increases the contact area under force, and can also increase the force of the restoring deformation force generated by the snap-fit ​​contact, thus effectively protecting the snap-fit ​​part 222.

[0032] In some embodiments, please refer to Figure 2 , Figure 3 The locking mechanism 2 also includes a first elastic element 25 and a second elastic element 26. A first mounting groove 231 is provided within the first mounting portion 231, and the first elastic element 25 is disposed within the first mounting groove 231. One end of the first connecting portion 221 abuts against the side of the first elastic element 25. A second mounting groove 241 is provided within the second mounting portion 241, and the second elastic element 26 is disposed within the second mounting groove 241. One end of the second connecting portion 223 abuts against the side of the second elastic element 26, providing elastic contact. This elastic contact helps protect the first connecting portion 221 and the second connecting portion 223, extending their service life.

[0033] In some embodiments, please refer to Figure 2 , Figure 3 The first mounting part 23 and the second mounting part 24 have the same structure. The first mounting part 23 includes a mounting block 232 and a mounting plate 233. One side of the mounting block 232 is fixedly connected to the upper locking cover 21. An open first mounting groove 231 is provided inside the mounting block 232, and the other side of the mounting block 232 is open. The mounting plate 233 is provided on the other side of the mounting block 232 and is screwed to the mounting block 232. A connecting groove 234 for communicating with the first mounting groove 231 is provided at one end of the mounting block 232 near the snap-fit ​​part 222. One end of the first connecting part 221 passes through the connecting groove 234 and is located in the first mounting groove 231, and abuts against the side of the first elastic member 25. The first connecting part 221 is located between the first elastic member 25 and the mounting block 232, making installation and disassembly more convenient and reducing maintenance costs.

[0034] In use, the first elastic element 25 is placed in the first mounting groove 231, and then the end of the first connecting part 221 connected to the snap-fit ​​part 222 is installed in the connecting groove 234. One end of the first connecting part 221 is bent upward so that its side contacts the side of the first elastic element 25. Finally, the mounting plate 233 and the mounting block 232 are aligned and screwed on for fixation. The assembly of the second mounting part 24 can refer to the assembly process of the first mounting part 23. When the lock 2 is engaged, the snap-fit ​​part 222 rotates toward the side of the upper lock cover 21 and snaps into the slot 31. At the same time, the first connecting part 221 and the second connecting part 223 are subjected to the force exerted by the first elastic element 25 and the second elastic element 26 toward the side of the lower lock 3, thereby ensuring that the snap-fit ​​part 222 is always snapped into the slot 31 and preventing the snap-fit ​​part 222 from falling off the slot 31.

[0035] Preferably, the structure of the first elastic member 25 is the same as that of the second elastic member 26. Both the first elastic member 25 and the second elastic member 26 are set as U-shaped sheet structures, or they can be set as springs or other structures. The structure is simple and can provide elastic restoring force for the locking part 222. It also helps to protect the locking part 22, prevent excessive force from causing deformation, and extend the service life.

[0036] In some embodiments, please refer to Figure 2 , Figure 5 The lower lock 3 has a reverse-bent arc surface on one side of the inner side of the slot 31, which can serve as a stop and make it easier for the user to pry open the upper lock cover 21. The outer end of the slot 31 is set with an arc-shaped chamfer structure, which can serve as a guide, so that the locking part 222 can be smoothly inserted into the slot 31 when locking 2.

[0037] A corresponding recess 211 is also provided at the lower end of the locking cover 21. This recess 211 is set to correspond to the reverse-bent arc surface, which can provide more space and make unlocking more convenient.

[0038] In use, the user closes the top cover of the box, then rotates the upper locking cover 21 and presses it towards the lower locking 3. The locking element 22 slides into the slot 31 under the pressing force. At this time, the locking element 22 rotates at a certain angle away from the upper locking cover 21, simultaneously causing the first connecting part 221 and the second connecting part 223 to rotate in opposite directions. The first connecting part 221 abuts against the first elastic element 25, and the second connecting part 223 abuts against the second elastic element 26. Under the action of the elastic restoring force, the locking part 222 abuts against the inner wall of the slot 31, thus locking the upper lock 2 and the lower lock 3. When unlocking is required, the upper locking cover 21 is manually pried open through the recess 211. The locking part 222 slides out of the slot 31, separating the upper locking cover 21 from the lower lock 3. Due to the auxiliary effect of the elastic restoring force of the first connecting part 221 and the second connecting part 223, opening is easier.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lock for a box, used to lock a box or container; characterized in that, The system includes an upper lock (2) mounted on the top cover of the box and a lower lock (3) fixed to the box body; the upper lock (2) includes an upper lock cover (21) and a lock (22); one side of the upper lock cover (21) is rotatably mounted on the outside of the top cover of the box, and the other side of the upper lock cover (21) is rotatably connected to the lock (22), and the lock (22) is located on the side of the upper lock cover (21) facing the box body; the lock (22) is configured as a strip structure, and the lock ( 22) A snap-fit ​​part (222) protruding from the upper lock cover (21) is provided; a slot (31) is provided on the side of the lower lock (3) away from the box body; when the upper lock cover (21) and the lower lock (3) are locked, the snap-fit ​​part (222) is engaged in the slot (31), and the lock (22) generates a deformation recovery force under the squeezing force of the lower lock (3), and at least one end of the lock (22) abuts against the upper lock cover (21).

2. The lock for a box according to claim 1, characterized in that, The locking element (22) is configured as a steel wire structure.

3. The lock for a box according to claim 1, characterized in that, The lock (22) includes a first connecting part (221), a snap-fit ​​part (222), and a second connecting part (223); the first connecting part (221) and the second connecting part (223) have the same structure and are both L-shaped; the upper lock cover (21) is provided with a first mounting part (23) and a second mounting part (24), one end of the first connecting part (221) is movably disposed in the first mounting part (23), and one end of the second connecting part (223) is disposed in the second mounting part (24); the snap-fit ​​part (222) is connected between the other end of the first connecting part (221) and the other end of the second connecting part (223); when the upper lock (2) and the lower lock (3) are separated, the snap-fit ​​part (222) is disposed on opposite sides of the first connecting part (221) and the second connecting part (223).

4. The lock for a box according to claim 3, characterized in that, The snap-fit ​​part (222) is configured as a U-shaped structure.

5. The lock for a box according to claim 3, characterized in that, The locking (2) further includes a first elastic element (25) and a second elastic element (26); a first mounting groove (231) is provided in the first mounting part (23), the first elastic element (25) is disposed in the first mounting groove (231), and one end of the first connecting part (221) abuts against the side of the first elastic element (25); a second mounting groove (241) is provided in the second mounting part (24), the second elastic element (26) is disposed in the second mounting groove (241), and one end of the second connecting part (223) abuts against the side of the second elastic element (26).

6. The lock for a box according to claim 5, characterized in that, The first mounting part (23) and the second mounting part (24) have the same structure. The first mounting part (23) includes a mounting block (232) and a mounting plate (233). One side of the mounting block (232) is fixedly connected to the upper locking cover (21). An open first mounting groove (231) is provided in the mounting block (232). The other side of the mounting block (232) is open. The mounting plate (233) is provided on the other side of the mounting block (232). The mounting plate (233) is screwed to the mounting block (232). A connecting groove (234) for communicating with the first mounting groove (231) is provided at one end of the mounting block (232) near the snap-fit ​​part (222). One end of the first connecting part (221) passes through the connecting groove (234) and is located in the first mounting groove (231), and abuts against the side of the first elastic member (25).

7. The lock for a box according to claim 5, characterized in that, The structure of the first elastic element (25) is the same as that of the second elastic element (26), and both the first elastic element (25) and the second elastic element (26) are configured as U-shaped sheet structures.

8. The lock for a box according to claim 1, characterized in that, The lower lock (3) has a reverse-bent arc surface on one side of the inner side of the slot (31); the outer end of the slot (31) is provided with an arc-shaped chamfer structure.

Images