Lock catch and packaging box

Abstract

The utility model belongs to the technical field of packaging box sealing locks, and discloses a lock catch and a packaging box, the lock catch is locked through a second seat body and a movable buckle, a buckle body composed of a first seat body and the movable buckle is in sliding fit with the second seat body, and the second seat body provides a guiding effect for sliding of the buckle body. The buckle body can accurately slide into the second seat body, so that the lock catch is convenient to assemble, the movable buckle is connected to the first seat body in a sliding mode, the first seat body provides a guiding effect for sliding of the movable buckle, and therefore the movable buckle can accurately slide to the locking position, and the lock catch can be conveniently switched to the locking state. When the packaging box is assembled, the buckle body can slide into the second seat body, so that the packaging box can be conveniently aligned and assembled, and the movable buckle can accurately slide to the locking position due to the fact that the movable buckle is slidably connected to the first seat body, namely, the first seat body can provide a guiding effect for sliding of the movable buckle, so that the box cover and the box body can be conveniently locked.

Description

Technical Field

[0001] This utility model relates to the field of packaging box lock technology, and in particular to a lock and packaging box. Background Technology

[0002] Packaging boxes are widely used for product packaging due to their convenience. To ensure the safety of goods during transportation and storage, existing technologies typically use latches to seal the packaging boxes. Traditional latches include a latch on the lid and a slot on the box body. The latch can be inserted into the slot and moved to the locking position, thereby locking the lid and box body in place.

[0003] However, traditional latches have the problem of being difficult to operate. Specifically, when the lid and body of the box are fastened together, the latch is not easy to insert into the slot and move to the locked position, which makes it inconvenient to assemble the latch and the packaging box. Moreover, it is not easy to lock the lid and body of the box. Utility Model Content

[0004] The purpose of this utility model is to provide a lock and a packaging box, so as to facilitate the assembly of the lock and the packaging box, and at the same time facilitate the locking of the box lid and the box body.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a latch, including a latch body and a second base body, wherein:

[0007] The buckle body includes a first base and a movable buckle. The movable buckle is slidably connected to the first base, and during the sliding process of the movable buckle relative to the first base, the movable buckle can be in a locked position or an unlocked position.

[0008] The second seat body slides in conjunction with the buckle body, and when the movable buckle is in the locked position, the second seat body blocks the movable buckle.

[0009] Preferably, the movable buckle includes a first sliding plate and a second sliding plate connected together, wherein:

[0010] The first sliding plate is slidably connected to the first seat.

[0011] The second slide plate slides into contact with the second seat.

[0012] Preferably, the first seat is provided with a first guide rail that is slidably connected to the first skateboard, and the first guide rail has a locking part that is configured to restrict the sliding of the first skateboard relative to the first guide rail.

[0013] Preferably, the locking part is a curved structure that bends inward toward the first guide rail.

[0014] Preferably, the locking part is elastic.

[0015] Preferably, the first guide rail has a protrusion near the locking part; the first slide plate has a through hole; when the second seat body blocks the movable buckle, the protrusion extends into the through hole.

[0016] Preferably, the height of the protrusion gradually increases along the sliding direction of the movable buckle towards the locking position.

[0017] Preferably, the second seat is provided with a second guide rail that slides with the second slide plate, and the second guide rail has a stop groove; when the second seat blocks the movable buckle, the groove wall of the stop groove presses against the second slide plate.

[0018] Preferably, the first seat is further provided with a limiting member to restrict the sliding distance of the first slide plate; the first slide plate is provided with an operating member; during the sliding process of the first slide plate relative to the first seat, the operating member can abut against the limiting member.

[0019] In another aspect, this utility model also provides a packaging box, including a box lid, a box body, and a latch as described above, wherein one of the latch body and the second seat body is installed on the box lid and the other is installed on the box body.

[0020] The beneficial effects of this utility model are:

[0021] In this invention, the latch is locked by a second base and a movable latch. The latch body, composed of a first base and a movable latch, is in a sliding fit with the second base. The second base provides a guide for the sliding of the latch body, so that the latch body can slide precisely into the second base, thus facilitating the assembly of the latch. The movable latch is slidably connected to the first base, and the first base provides a guide for the sliding of the movable latch, so that the movable latch can slide precisely to the locked position, thus facilitating the switching of the latch to the locked state.

[0022] In this invention, when the lid is snapped onto the box body to assemble the packaging box, the snap body can slide into the second seat, which facilitates the alignment and assembly of the packaging box. Moreover, since the movable snap is slidably connected to the first seat, that is, the first seat can provide a guiding function for the sliding of the movable snap, the movable snap can slide precisely to the locking position, which facilitates locking the lid and the box body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the latch in an embodiment of this utility model;

[0024] Figure 2This is one of the structural schematic diagrams of the first seat in the embodiments of this utility model;

[0025] Figure 3 This is the second structural schematic diagram of the first seat in this embodiment of the present utility model;

[0026] Figure 4 This is one of the structural schematic diagrams of the second seat in this utility model embodiment;

[0027] Figure 5 This is the second structural schematic diagram of the second seat in this embodiment of the present utility model;

[0028] Figure 6 This is one of the structural schematic diagrams of the movable buckle in the embodiments of this utility model;

[0029] Figure 7 This is the second schematic diagram of the structure of the movable buckle in the embodiments of this utility model;

[0030] Figure 8 This is a front view of the latch in the unlocked position in an embodiment of this utility model;

[0031] Figure 9 It is along Figure 8 A cross-sectional view of the CC line;

[0032] Figure 10 This is a front view of the latch in the locked position in an embodiment of this utility model;

[0033] Figure 11 It is along Figure 10 Sectional view of the DD line;

[0034] Figure 12 This is a schematic diagram of the packaging box in an embodiment of the present utility model;

[0035] Figure 13 This is a schematic diagram of the structure of the box lid in an embodiment of this utility model;

[0036] Figure 14 This is a schematic diagram of the box body in an embodiment of the present utility model;

[0037] Figure 15 yes Figure 14 A magnified view of a section at point A in the middle;

[0038] Figure 16 This is a schematic diagram of the packaging box after the lid has been removed in an embodiment of this utility model;

[0039] Figure 17 yes Figure 16 A magnified view of a section at point B.

[0040] In the picture:

[0041] 1. Box lid; 11. Mounting slot; 111. First panel; 2. Box body; 21. Notch; 22. Second slot;

[0042] 3. Lock; 31. First base; 311. First guide rail; 3111. First groove wall; 3112. Second groove wall; 3113. Protrusion; 31131. Inclined surface; 3114. First sliding groove; 312. Limiting component; 3121. Through hole; 313. First recessed groove; 32. Second base; 321. Second guide rail; 3211. First opening; 3212. Stop groove; 3213. Third groove wall; 32131. First plate; 3214. Fourth groove wall; 32141. Second plate; 3215. Second sliding groove; 322. Slot; 3221. Second opening; 323. Second insert; 324. Body; 325. Positioning groove; 33. Movable buckle; 331. First sliding plate; 3311. Through hole; 332. Second sliding plate; 341. Locking part; 342. Operating component. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] Please see Figures 1 to 11 This embodiment provides a latch, which includes a latch body and a second seat body 32. It can be understood that the latch body is installed on component one and the second seat body 32 is installed on component two.

[0048] The buckle body includes a first seat 31 and a movable buckle 33. The movable buckle 33 is slidably connected to the first seat 31. During the sliding process of the movable buckle 33 relative to the first seat 31, the movable buckle 33 can be in a locked position or an unlocked position. The second seat 32 is slidably engaged with the buckle body. When the movable buckle 33 is in the locked position, the second seat 32 blocks the movable buckle 33.

[0049] Based on the above, the second seat 32 slides and engages with the buckle to assemble the latch and connect component one and component two. When the movable buckle 33 slides forward relative to the first seat 31 to the locking position, the latch is in a locked state, thereby locking component one and component two. When the second seat 32 releases its obstruction of the movable buckle 33, the latch is in an unlocked state, and the movable buckle 33 slides in the opposite direction to the unlocked position, thereby unlocking component one and component two.

[0050] Therefore, in this embodiment, the latch is locked by the second seat 32 and the movable latch 33. The latch body, composed of the first seat 31 and the movable latch 33, is in a sliding engagement relationship with the second seat 32. The second seat 32 provides a guiding function for the sliding of the latch body, so that the latch body can slide precisely into the second seat 32, thereby facilitating the assembly of the latch. The movable latch 33 is slidably connected to the first seat 31, and the first seat 31 provides a guiding function for the sliding of the movable latch 33, so that the movable latch 33 can slide precisely to the locked position, thereby facilitating the switching of the latch to the locked state.

[0051] Based on the above, please refer to Figures 1 to 6 This embodiment also provides a packaging box, which includes a lid 1 and a body 2. The lid 1 can be fastened onto the body 2 to close the packaging box.

[0052] In addition, the packaging box also includes a latch 3, which adopts the structure described above. The latch body is installed on the box cover 1, which is the component one mentioned above. The second seat 32 is installed on the box body 2, which is the component two mentioned above.

[0053] Of course, in other optional embodiments, the second seat 32 may be installed on the cover 1 and the buckle may be installed on the box body 2. This embodiment does not impose specific limitations on this.

[0054] In this embodiment, the latch 3 is used to lock the joint between the lid 1 and the body 2 to prevent the packaging box from being accidentally opened during the transportation and storage of goods.

[0055] To achieve locking, in accordance with the above description, in this embodiment, the latch 3 includes a first seat 31 and a second seat 32, wherein the first seat 31 is installed on the lid 1 and the second seat 32 is installed on the box body 2. Exemplarily, in this embodiment, the first seat 31 and the second seat 32 are respectively embedded in the lid 1 and the box body 2, thereby ensuring that the first seat 31 and the second seat 32 are securely installed on the lid 1 and the box body 2 respectively.

[0056] Of course, other optional embodiments may also be: the second seat 32 is installed on the cover 1 and the first seat 31 is installed on the box body 2. This embodiment does not impose specific limitations on this.

[0057] Specifically, the cover 1 is provided with a mounting groove 11, a first base 31 is installed in the mounting groove 11, a first recess 313 is provided on the first base 31, a first insert 111 is formed on the groove wall of the mounting groove 11, and the first insert 111 is embedded in the first recess 313. The top of the box body 2 is provided with a notch 21, a second base 32 is installed in the notch 21, a second insert 323 is provided on the second base 32, the box body 2 is provided with a second recess 22, and the second insert 323 is embedded in the second recess 22.

[0058] As described above, when the lid 1 is fastened to the body 2, the first seat 31 can be inserted into the second seat 32, that is, the fastener can slide into the second seat 32. Then, the movable buckle 33 can slide relative to the first seat 31 and slide to the locking position, thereby locking the fastener and the second seat 32, and thus locking the lid 1 and the body 2.

[0059] Based on the above, in this embodiment, when the box lid 1 is fastened to the box body 2 to assemble the packaging box, the fastener can slide into the second seat 32, which facilitates the alignment and assembly of the packaging box. Moreover, since the movable buckle 33 is slidably connected to the first seat 31, that is, the first seat 31 can provide a guiding function for the sliding of the movable buckle 33, the movable buckle 33 can slide precisely to the locking position, which facilitates locking the box lid 1 and the box body 2.

[0060] Please continue reading. Figures 1 to 11 and combined Figures 12 to 17The movable buckle 33 includes a first sliding plate 331 and a second sliding plate 332 connected to each other. The first sliding plate 331 and the second sliding plate 332 are arranged in parallel. The first sliding plate 331 is slidably connected to the first seat 31, and the second sliding plate 332 is slidably engaged with the second seat 32.

[0061] That is, in this embodiment, both the first seat 31 and the second seat 32 can guide the movable buckle 33, so that it is convenient to assemble the buckle 3 and to switch the buckle 3 to the locked state.

[0062] Furthermore, the first seat 31 is provided with a first guide rail 311 that is slidably connected to the first slide plate 331. The first guide rail 311 has a locking part 341, which is configured to restrict the sliding of the first slide plate 331 relative to the first guide rail 311. That is, in this embodiment, in addition to the second seat 32 blocking the movable buckle 33, the position of the movable buckle 33 relative to the first guide rail 311 is further restricted under the action of the locking part 341, thereby ensuring that the buckle 3 can be more securely kept in the locked state, and thus preventing the packaging box from being opened accidentally.

[0063] The second seat 32 is provided with a second guide rail 321 that slides with the second slide plate 332. That is, the first seat 31 and the second seat 32 are respectively provided with a first guide rail 311 and a second guide rail 321. The second seat 32 is provided with a slot 322. The movable buckle 33 is slidably connected to the first guide rail 311. One end of the second guide rail 321 forms a first opening 3211. Based on the above design, the first seat 31 can be inserted into the slot 322 along the extension direction of the second guide rail 321 to be inserted into the second seat 32. The movable buckle 33 can slide into the second guide rail 321 from the first opening 3211 to be slidably connected to the second guide rail 321. That is, the movable buckle 33 can slide into the second guide rail 321 from the first opening 3211 to be slidably connected to the first guide rail 311 and the second guide rail 321 together.

[0064] When applied to a packaging box, the lid 1 can be snapped onto the box body 2, and the first base 31 can be inserted into the second base 32 along the extension direction of the second guide rail 321. At the same time, the movable buckle 33 can slide into the second guide rail 321 through the first opening 3211, so as to slide and connect with the first guide rail 311 and the second guide rail 321 together, thereby assembling the latch 3 during the process of snapping the lid 1 onto the box body 2.

[0065] In addition, the movable latch 33 can slide along the first guide rail 311 and the second guide rail 321. In the locked position, the movable latch 33 has a first working position that stops between the first seat 31 and the second seat 32 along the extension direction of the second guide rail 321 to prevent the first seat 31 from sliding out of the slot 322, and a second working position that releases the stop. In the first working position, the second seat 32 abuts against the movable latch 33, and the movable latch 33 can prevent the first seat 31 and the second seat 32 from separating along the extension direction of the second guide rail 321. In the second working position, the latch body is unlocked from the second seat 32, so that the movable latch 33 can drive the first seat 31 to slide towards the unlocked position.

[0066] That is, after the movable latch 33 slides along the first guide rail 311 and the second guide rail 321 to the locked position, the movable latch 33 can switch between the first working position and the second working position. When the movable latch 33 is in the first working position, the first seat 31 and the second seat 32 cannot be separated under the stopping action of the movable latch 33, so that the latch 3 is in the locked state. When the movable latch 33 is in the second working position, the first seat 31 and the second seat 32 can be separated normally, and the latch 3 switches to the unlocked state.

[0067] When applied to packaging boxes, when the movable latch 33 is in the first working position, the first seat 31 and the second seat 32 cannot be separated due to the stopping action of the movable latch 33, thus locking the lid 1 to the box body 2 to prevent the lid 1 from accidentally separating from the box body 2 during the transportation and storage of goods, thereby preventing the packaging box from being accidentally opened during the transportation and storage of goods. When the movable latch 33 is in the second working position, the first seat 31 and the second seat 32 can be separated normally, that is, the lid 1 can be removed from the box body 2.

[0068] Furthermore, when the packaging box needs to be used again in the future, simply fasten the lid 1 back onto the box body 2, and then operate the movable buckle 33 to slide and switch the movable buckle 33 to the first working position.

[0069] Based on the above, this embodiment uses a latch 3 to seal the packaging box. Specifically, in this embodiment, after the lid 1 is fastened to the box body 2, the lid 1 can be locked to the box body 2 and the box body 2 can be unlocked simply by manipulating the movable latch 33 of the latch 3 to slide along the first guide rail 311 and the second guide rail 321, and by switching the movable latch 33 between the first working position and the second working position. Specifically, in this embodiment, by manipulating the movable latch 33 of the latch 3 to slide along the first guide rail 311 and the second guide rail 321, the movable latch 33 slides to the locking position. In the locking position, the movable latch 33 can switch to the first working position, thereby locking the lid 1 to the box body 2. The movable latch 33 can also switch to the second working position, thereby unlocking the lid 1 and the box body 2. The entire process is time-saving, labor-saving, and easy to operate. Moreover, the process of unlocking the lid 1 and the box body 2 will not cause damage to the lid 1 and / or the box body 2, thus avoiding affecting the subsequent reuse of the packaging box.

[0070] It is worth noting that in this embodiment, a first seat 31 is provided on both sides of the box lid 1, and a second seat 32 is provided on both sides of the box body 2. The two first seats 31 and the two second seats 32 correspond one-to-one. That is, in this embodiment, the packaging box includes two latches 3, which simultaneously lock the box lid 1 and the box body 2. Of course, in other optional embodiments, the packaging box may include only one latch 3, or it may include three or more latches 3. This embodiment does not impose specific limitations on this.

[0071] It is also worth noting that, in other alternative embodiments, the latch 3 mentioned above can also be applied to other structures, such as toolboxes, that also require locking two independent parts together. This embodiment does not impose any specific limitations on this.

[0072] Based on the above description, in this embodiment, the slot of the slot 322 is formed as a second opening 3221. The first seat 31 can be inserted into the slot 322 through the second opening 3221 along the extension direction of the second guide rail 321, and abut against the side wall of the slot 322 away from the second opening 3221 along the extension direction of the second guide rail 321. In this embodiment, the extension direction of the second guide rail 321 is used as the first direction for description. The slot 322 can provide an indication for the first seat 31 to be inserted into the second seat 32, so that when the box cover 1 is fastened to the box body 2, the first seat 31 can be inserted into the second seat 32. Specifically, the first seat 31 can be inserted into the slot 322 along the first direction and abut against the side wall of the slot 322 away from the second opening 3221 along the first direction, so that the first seat 31 can be inserted into the second seat 32.

[0073] It is worth noting that in this embodiment, the second seat 32 is composed of two parts: a body 324 and a second guide rail 321. The body 324 is disposed in the notch 21 and forms a slot 322. The second guide rail 321 is covered on the inner surface of the box 2. A positioning groove 325 is formed between the body 324 and the second guide rail 321. The second seat 32 is covered by the positioning groove 325 on the inner wall of the notch 21 and the outer periphery of the inner surface of the box 2. The second insert 323 is disposed in the positioning groove 325 and embedded in the second insert 22.

[0074] As described above, when the first seat 31 is inserted into the slot 322 along the first direction, the movable buckle 33 simultaneously slides into the second guide rail 321 along the first direction.

[0075] Furthermore, when the movable latch 33 can slide along the first guide rail 311 and the second guide rail 321 to the locked position, the movable latch 33 remains in contact with the first seat 31, thereby stopping the first seat 31.

[0076] It is worth noting that in this embodiment, the first base 31 is provided with two first guide rails 311, and the first slide plate 331 is slidably connected between the two first guide rails 311. The two first guide rails 311 are arranged opposite each other in a direction perpendicular to the extension direction of the first guide rails 311. Moreover, the first guide rails 311 are provided with first groove walls 3111 and second groove walls 3112 at intervals along the arrangement direction of the first slide plates 331 and the second slide plates 332, and the first slide plate 331 is slidably connected between the first groove walls 3111 and the second groove walls 3112.

[0077] In addition, the second guide rail 321 is provided with a third groove wall 3213 and a fourth groove wall 3214 on both sides along the direction perpendicular to its extension direction. In this embodiment, the arrangement direction of the first groove wall 3111 and the second groove wall 3112 is the second direction, and the arrangement direction of the third groove wall 3213 and the fourth groove wall 3214 is the third direction. It can be understood that the second direction and the third direction are both perpendicular to the first direction, and the second direction and the third direction are perpendicular to each other. After the first seat 31 is inserted into the second seat 32, the second slide plate 332 extends into the space between the third groove wall 3213 and the fourth groove wall 3214 and slides between the third groove wall 3213 and the fourth groove wall 3214.

[0078] Based on the above description, the locking part 341 is a curved structure that bends inward toward the first guide rail 311. The locking part 341 is disposed on one of the first groove wall 3111 and the second groove wall 3112 near the second slide plate 332, and bends toward the one of the first groove wall 3111 and the second groove wall 3112 away from the second slide plate 332. For example, in this embodiment, the locking part 341 is disposed on the first groove wall 3111 and bends toward the second groove wall 3112. The locking part 341 can press against the first slide plate 331 when the second seat 32 blocks the movable buckle 33, thereby further restricting the position of the movable buckle 33 relative to the first guide rail 311.

[0079] Moreover, in this embodiment, the locking part 341 is elastic, that is, in this embodiment, the locking part 341 is a spring piece and is disposed on one of the first groove wall 3111 and the second groove wall 3112 near the second slide plate 332. The spring piece bends toward the one of the first groove wall 3111 and the second groove wall 3112 away from the second slide plate 332. When the movable buckle 33 slides toward the locking position, the first slide plate 331 can push the spring piece toward the side near the second slide plate 332 to deform, so that the locking part 341 can press against the first slide plate 331 when the second seat 32 blocks the movable buckle 33.

[0080] Furthermore, the first guide rail 311 is provided with a protrusion 3113 near the locking part 341, and the first slide plate 331 is provided with a through hole 3311. When the second seat 32 blocks the movable buckle 33, the protrusion 3113 extends into the through hole 3311.

[0081] Specifically, a protrusion 3113 is provided on one of the first groove wall 3111 and the second groove wall 3112 that is away from the second slide plate 332. Therefore, in this embodiment, the protrusion 3113 is provided on the second groove wall 3112, and the first slide plate 331 is provided with a through hole 3311. Moreover, the first slide plate 331 is provided with two through holes 3311, and the two through holes 3311 correspond one-to-one with the two protrusions 3113. The protrusion 3113 can extend into the through hole 3311 when the second slide plate 332 moves into the stop groove 3212.

[0082] That is, in this embodiment, when the first seat 31 is not assembled with the second seat 32, the movable latch 33 can move along the first guide rail 311 so that the through hole 3311 is aligned with the protrusion 3113. When the second seat 32 blocks the movable latch 33, the protrusion 3113 extends into the through hole 3311, thereby keeping the movable latch 33 assembled on the first seat 31 and preventing the movable latch 33 from detaching from the first seat 31.

[0083] Therefore, when the second seat 32 blocks the movable latch 33, the movable latch 33 can be more securely stopped between the first seat 31 and the second seat 32 along the extension direction of the second guide rail 321.

[0084] Furthermore, the height of the protrusion 3113 gradually increases along the sliding direction of the movable latch 33 towards the locking position. That is, in this embodiment, along the sliding direction of the movable latch 33 towards the locking position, the height of the protrusion 3113 gradually increases along the arrangement direction of the first slide plate 331 and the second slide plate 332, thereby forming a slope 31131 on the side of the protrusion 3113 facing the second slide plate 332. The slope 31131 can prevent the protrusion 3113 from blocking the first slide plate 331 from sliding along the first guide rail 311, thereby ensuring that the movable latch 33 can slide to the locking position along the first guide rail 311 and the second guide rail 321.

[0085] In addition, in this embodiment, the second guide rail 321 has a stop groove 3212. When the second seat 32 blocks the movable buckle 33, the groove wall of the stop groove 3212 presses against the second slide plate 332. Specifically, the stop groove 3212 is provided on the side of the second guide rail 321 away from the first opening 3211. During the sliding process of the movable buckle 33 relative to the first seat 31 and the second seat 32, the movable buckle 33 can slide to be directly opposite the stop groove 3212. The locking part 341 can apply a pushing force to the movable buckle 33 when the movable buckle 33 slides to be directly opposite the stop groove 3212, so that the movable buckle 33 moves in a direction perpendicular to the extension direction of the second guide rail 321 and moves into the stop groove 3212, thereby enabling the second seat 32 to block the movable buckle 33.

[0086] As described above, when the movable latch 33 slides along the first guide rail 311 and the second guide rail 321 to be directly opposite the stop groove 3212, the locking part 341 applies a pushing force to the movable latch 33, so that the movable latch 33 moves into the stop groove 3212 in a direction perpendicular to the extension direction of the second guide rail 321, thereby switching from the second working position to the first working position. At this time, the movable latch 33 stops on the side of the second guide rail 321 away from the first opening 3211. At the same time, based on the above, the movable latch 33 always keeps in contact with the first seat 31. Thus, the movable latch 33 can stop between the first seat 31 and the second seat 32, thereby preventing the first seat 31 from sliding out of the slot 322. That is, at this time, the movable latch 33 locks the first seat 31 and the second seat 32 together, thereby locking the box cover 1 and the box body 2 together.

[0087] Specifically, based on the above, the distance between the first groove wall 3111 and the second groove wall 3112 is greater than the width of the first slide plate 331 along the arrangement direction of the first groove wall 3111 and the second groove wall 3112, thereby enabling the first slide plate 331 to move between the first groove wall 3111 and the second groove wall 3112 along the arrangement direction of the first slide plate 331 and the second slide plate 332.

[0088] Specifically, the first guide rail 311 has a locking part 341, which is a spring piece and is disposed on one of the first groove wall 3111 and the second groove wall 3112 near the second slide plate 332. The spring piece is bent toward the one of the first groove wall 3111 and the second groove wall 3112 away from the second slide plate 332. For example, in this embodiment, the spring piece is disposed on the first groove wall 3111 and bent toward the second groove wall 3112. When the movable buckle 33 slides toward the locking position, the first slide plate 331 can push the spring piece to deform toward the side near the second slide plate 332. When the second slide plate 332 of the movable buckle 33 slides to be directly opposite the stop groove 3212, the spring piece can make the second slide plate 332 move toward the side near the first slide plate 331 and move into the stop groove 3212.

[0089] As shown above, the stop groove 3212 is opened in a direction perpendicular to the extension direction of the second guide rail 321. When the movable buckle 33 is slidably connected to the first guide rail 311 and the second guide rail 321, the opening direction of the stop groove 3212 coincides with the arrangement direction of the first slide plate 331 and the second slide plate 332. When the movable latch 33 slides toward the locking position relative to the first seat 31 and the second seat 32, the first slide plate 331 is located on the side close to the first groove wall 3111. This allows the push spring to deform toward the side close to the second slide plate 332 when the movable latch 33 slides toward the locking position. When the movable latch 33 moves to be directly opposite the stop groove 3212, the movable latch 33 is in the locking position. Since the movable latch 33 is not constrained by the second guide rail 321, the spring can restore its deformation, thereby pushing the first slide plate 331 toward the second groove wall 3112. At the same time, the movable latch 33 moves into the stop groove 3212, thereby causing the second seat 32 to resist the movable latch 33.

[0090] Moreover, based on the above, when the first seat 31 is inserted into the second seat 32 and the movable buckle 33 slides to the locked position, the protrusion 3113 will not affect the movement of the movable buckle 33 to the first working position. That is, the protrusion 3113 will not affect the movable buckle 33 from locking the first seat 31 and the second seat 32.

[0091] In addition, the first slide plate 331 is provided with an operating member 342, that is, the operating member 342 is provided on the movable buckle 33. The operating member 342 can be pressed and make the movable buckle 33 overcome the thrust so that the movable buckle 33 can move out of the stop groove 3212 and return to the second working position, so that the first seat 31 can be pulled out from the slot 322 in the future.

[0092] Specifically, when unlocking is required, the operator only needs to press the operating part 342 to apply pressure to the movable latch 33, which will overcome the pushing force applied by the spring and move out of the stop groove 3212. Then, the operator manipulates the movable latch 33 to slide back to the unlock position along the first guide rail 311 and the second guide rail 321, thereby moving the first slide plate 331 away from the bent part of the spring and the movable latch 33 slides back into the second guide rail 321 to release the stop of the movable latch 33 on the first seat 31 and the second seat 32, so that the latch 3 can be unlocked smoothly afterwards.

[0093] When applied to packaging boxes, operators can remove the lid 1 from the box body 2 by pressing the operating part 342, and the first seat 31 is pulled out from the second seat 32 at the same time.

[0094] As described above, a first sliding groove 3114 is formed between the first groove wall 3111 and the second groove wall 3112. The first seat 31 is provided with first sliding grooves 3114 on both sides in a direction perpendicular to the arrangement direction of the first sliding plate 331 and the second sliding plate 332. The two first sliding grooves 3114 are arranged opposite to each other. The first sliding plate 331 is slidably connected in the two first sliding grooves 3114, thereby ensuring that the first sliding plate 331 can slide stably along the first guide rail 311 and the second guide rail 321.

[0095] It is understandable that, based on the above, the first seat 31 is provided with spring pieces on both sides in a direction perpendicular to the arrangement direction of the first slide plate 331 and the second slide plate 332, so as to ensure that the movable buckle 33 can be stably pushed into the stop groove 3212.

[0096] In addition, in this embodiment, a second sliding groove 3215 is formed between the third groove wall 3213 and the fourth groove wall 3214. After the first seat 31 is inserted into the second seat 32, the second sliding plate 332 extends into the second sliding groove 3215 and is slidably connected in the second sliding groove 3215.

[0097] In addition, the third groove wall 3213 is provided with a first plate portion 32131, and the fourth groove wall 3214 is provided with a second plate portion 32141. A first opening 3211 is formed between the first plate portion 32131 and the second plate portion 32141. The movable buckle 33 can slide into the space between the third groove wall 3213 and the fourth groove wall 3214 through the first opening 3211. The distance between the first plate portion 32131 and the second plate portion 32141 gradually decreases from the side closer to the first opening 3211 to the side farther away from the first opening 3211, thereby facilitating the insertion of the second slide plate 332 into the second slide groove 3215, and further facilitating the insertion of the first seat 31 onto the second seat 32.

[0098] Similarly, for the portion of slot 322 near its opening, along the extension direction of the second guide rail 321, the spacing of this portion along the arrangement direction of the third groove wall 3213 and the fourth groove wall 3214 gradually decreases from the side closer to the second opening 3221 to the side farther away from the second opening 3221, thereby further facilitating the insertion of the first seat 31 onto the second seat 32.

[0099] Furthermore, the first seat 31 is also provided with a limiting member 312 to limit the sliding distance of the first slide plate 331. During the sliding process of the first slide plate 331 relative to the first seat 31, the operating member 342 can abut against the limiting member 312.

[0100] For details, please continue reading Figures 1 to 11 The first seat 31 is provided with a limiting member 312, which has a through hole 3121. The operating member 342 extends into the through hole 3121 from one side. Moreover, the operating member 342 can move in the through hole 3121 along the extension direction of the first guide rail 311 with the movable buckle 33, and can abut against the hole wall of the through hole 3121 when the movable buckle 33 slides to the locked position, thereby stopping the first seat 31.

[0101] Furthermore, the locking part 341 can apply a pushing force to the movable latch 33 when the movable latch 33 slides to the locked position, so that the movable latch 33 moves within the through hole 3121 along the opening direction of the through hole 3121. That is, in this embodiment, after the movable latch 33 moves into the stop groove 3212 to switch to the first working position, the operating member 342 still stops the first seat 31. Therefore, in this embodiment, the movable latch 33 is kept in the locked position and stops the first seat 31 by the operating member 342.

[0102] It is worth noting that when applied to packaging boxes, the limiting member 312 extends out of the box cover 1, and the operating member 342 extends into the through hole 3121 from the inside of the box cover 1 and protrudes from the box cover 1 through the through hole 3121. In actual operation, the operator can control the movable buckle 33 to slide along the first guide rail 311 and the second guide rail 321 through the operating member 342. When the movable buckle 33 slides to the locking position, the locking part 341 can apply a pushing force to the movable buckle 33 so that the movable buckle 33 drives the operating member 342 to move outward of the box cover 1 along the opening direction of the through hole 3121.

[0103] Therefore, when it is necessary to unlock the lid 1 and the body 2, the operator can press the operating part 342 to move it towards the inside of the lid 1 along the opening direction of the through hole 3121, so that the movable buckle 33 overcomes the pushing force and moves out of the stop groove 3212, thereby switching to the second working position. At this time, the movable buckle 33 is not stopped by the second guide rail 321, and the operator can remove the lid 1 from the body 2. At the same time, the first seat 31 is pulled out from the second seat 32.

[0104] Specifically, in actual operation, after the operator attaches the lid 1 to the box body 2, the operator can manually operate the operating component 342 to move from the first position to the second position along the extension direction of the first guide rail 311, thereby driving the movable buckle 33 to slide from the unlocked position to the locked position along the first guide rail 311 and the second guide rail 321. Then, the locking part 341 applies a pushing force to the movable buckle 33, thereby moving the movable buckle 33 into the stop groove 3212. At the same time, the operating component 342 moves outward along the opening direction of the through hole 3121, thereby locking the lid 1 to the box body 2.

[0105] When unlocking is required, the operator can press the operating member 342 to move the operating member 342 towards the inside of the cover 1 along the opening direction of the through hole 3121, thereby causing the movable latch 33 to overcome the pushing force and move out of the stop groove 3212, and then switch to the second working position. After that, the operator can manipulate the operating member 342 to reset from the second position to the first position along the extension direction of the first guide rail 311, thereby causing the movable latch 33 to reset to the unlock position, and then the operator can remove the cover 1 from the box body 2.

[0106] Based on the above description, in this embodiment, the packaging box is provided with two latches 3. In actual operation, the operator can lock or unlock the two latches 3 simultaneously by operating the two latches 3 with both hands respectively.

[0107] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A latch, characterized in that, Including the buckle body and the second seat body (32), wherein: The buckle body includes a first base (31) and a movable buckle (33). The movable buckle (33) is slidably connected to the first base (31), and during the sliding process of the movable buckle (33) relative to the first base (31), the movable buckle (33) can be located in a locked position or an unlocked position. The second seat (32) slides with the buckle, and when the movable buckle (33) is in the locked position, the second seat (32) blocks the movable buckle (33).

2. The latch according to claim 1, characterized in that, The movable buckle (33) includes a first sliding plate (331) and a second sliding plate (332) connected to each other, wherein: The first sliding plate (331) is slidably connected to the first seat (31); The second sliding plate (332) slides in conjunction with the second seat (32).

3. The latch according to claim 2, characterized in that, The first seat (31) is provided with a first guide rail (311) that is slidably connected to the first slide plate (331). The first guide rail (311) has a locking part (341) which is configured to restrict the sliding of the first slide plate (331) relative to the first guide rail (311).

4. The latch according to claim 3, characterized in that, The locking part (341) is a curved structure that bends inward toward the first guide rail (311).

5. The latch according to claim 4, characterized in that, The locking part (341) is elastic.

6. The latch according to any one of claims 3-5, characterized in that, The first guide rail (311) has a protrusion (3113) near the locking part (341); the first slide plate (331) has a through hole (3311); when the second seat (32) abuts against the movable buckle (33), the protrusion (3113) extends into the through hole (3311).

7. The latch according to claim 6, characterized in that, The height of the protrusion (3113) gradually increases along the sliding direction of the movable buckle (33) towards the locking position.

8. The latch according to claim 7, characterized in that, The second seat (32) is provided with a second guide rail (321) that slides with the second slide plate (332). The second guide rail (321) has a stop groove (3212). When the second seat (32) blocks the movable buckle (33), the groove wall of the stop groove (3212) presses against the second slide plate (332).

9. The latch according to claim 2, characterized in that, The first seat (31) is also provided with a limiting member (312) to limit the sliding distance of the first slide plate (331); the first slide plate (331) is provided with an operating member (342); during the sliding process of the first slide plate (331) relative to the first seat (31), the operating member (342) can abut against the limiting member (312).

10. A packaging box, characterized in that, Includes a lid (1), a body (2) and a latch as described in any one of claims 1-9, wherein one of the latch body and the second seat body (32) is installed on the lid (1) and the other is installed on the body (2).

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