TWI529292B - The lock structure of the box - Google Patents

Description

Locking structure of the box

The invention relates to the technical field of the lock structure of the box body, in particular to a lock structure of the box body which can make the opening of the box body more labor-saving and convenient, and can make the lock effect better.

Referring to Fig. 1, there is shown a lock structure commonly used as a case for an instrument case, a suitcase, a trunk, a storage compartment, etc., which is mainly attached to the front side panel of a cover 10. Two locking hooks 11 are disposed on the front side plate of a box body 12, and two locking heads 13 are provided in the front side plate of the box body 12. When the box cover 10 is attached to the box body 12, the two locking heads 13 are respectively available for locking The two locking hooks 11 are used to achieve the purpose of locking the box cover 10 and the box body 12.

However, when the conventional box lock structure is to open the cover 10, the user needs to use the thumb of both hands to first apply the control button 14 of the two lock heads 13 on the front side of the box body 12 to the opposite side. a distance so as to release the two locking hooks 11 on the cover 10, and then use the index fingers of both hands to raise the cover 10 upward by an angle, so that the two locking hooks 11 are locked by the two locking heads 13 After leaving the hole 15, the cover 10 is held by one hand again, and finally the other hand is used to hold the cover 10 completely open to a position where it does not fall anyway and reclose. In order to make full use of the space inside the box, the box cover 10 is also provided in the box cover 10 for accommodating articles. In the opposite direction, the weight of the cover 10 is increased. Therefore, when the thumb of the two hands pushes the two control buttons 14 outward, the index finger 10 is used to lift the cover 10 upwards. It is very difficult because of its considerable weight. Even if it is lifted up with force, the finger is slippery and the cover 10 is re-closed and the finger is pinched. In particular, such a way of opening is not only very laborious, but also less effective in exerting force, and the operation is also very unsatisfactory.

In addition, since the conventional locking structure only relies on the hooking of the locking hook 11 and the locking device in the locking hole 15 of the locking head 13 to achieve the purpose of locking, since the cover 10 and the box body 12 are made. There are some slight errors in the assembly, and the two are also in a planar joint between the opposite contact surfaces after the cover, so when the force is pushed or shaken in opposite directions or the contents are filled, it is very It is easy to cause a slight horizontal displacement of the two, and the slight displacement is easy to unhook and lock the locking hook 11 and the locking device of the locking head 13, so that the locking effect is poor.

The conventional box lock structure has the problems that the box is opened very hard, the force is not easy, the hand is not easy, and the lock effect is not good.

The invention provides a lock structure of a box body, which comprises a box body, a box cover and two lock module. Wherein, the box body has a lower receiving groove facing upward. The cover has an upper receiving groove facing the lower opening, and the rear side of the cover is swingably coupled to the rear side of the case body. The two locking buckle modules comprise two locking pieces disposed on the front side of the box body and two locking heads disposed on the front side of the box cover, the locking piece having a lock The hole and a positioning hole, the lock head comprises a piece, a locking hook, a control button, a compression spring and a positioning post. The inner side of the seat piece is coupled to the cover, and has a first sliding hole and a second sliding hole and a protruding piece. The protruding piece is located on the inner side of the seat piece and has a guiding hole. The locking hook is movable in the first sliding hole to a locking position and an unlocking position, the locking hook has a hook portion, a guiding rod and a connecting portion, and the hook portion protrudes from the outer side of the seat piece. When the locking hook is in the locking position, the hook portion can be hooked on the inner edge of one side of the locking hole, and the hook portion can leave the side of the locking hole when the locking hook is in the unlocking position. The guide rod is disposed in the guide hole. The control button is located on the outer side of the seat piece and has a coupling post passing through the second sliding hole to be coupled to the connecting portion of the locking hook. The compression spring is sleeved on the guiding rod, and one end of the end is at the other end of the connecting portion, and the protruding piece can provide an elastic force to move the locking hook to the locking position. The positioning post is coupled to the seat piece and protrudes from the outer side surface of the seat piece. When the cover is closed with the box body, the positioning post is embedded in the positioning hole of the locking piece.

The locking structure of the box body provided by the present invention can be designed by using the structure of the two locking blocks on the box cover and the two locking pieces on the box body. When the two control buttons are pulled to the opposite side by the two hands to disengage the two locking hooks from the side of the locking hole of the locking piece, the hands can also be opened upward by the hands, so that the opening operation of the box is performed. The system is more labor-saving and convenient, and there is no case where the lid is accidentally slipped off and the user's fingers are pinched. In particular, when the cover is closed on the box body, the positioning posts of the two lock heads on the cover are respectively inserted into the positioning holes of the two locking pieces on the box body, so that the two positioning positions are The mutual insertion of the column and the two positioning holes enables the box cover and the box body to not generate a level The relative displacement of the direction, so when the locking hooks of the two locking hooks are set on the side of the locking hole of the locking piece, there is no possibility of unhooking and accidental unlocking, so the effect of the locking buckle is better.

[Prior technology]

10‧‧‧Box cover

11‧‧‧Lock hook

12‧‧‧ box body

13‧‧‧Lock

14‧‧‧Control button

15‧‧‧Keyhole

[this invention]

20‧‧‧ box body

21‧‧‧floor

22‧‧‧ Lower side panel

23‧‧‧ 下容槽

24‧‧‧Under the slot

25‧‧‧Under fixing slot

26‧‧‧Under the slot

30‧‧‧Box cover

31‧‧‧ top board

32‧‧‧Upper side panel

33‧‧‧上容槽

34‧‧‧Upper slot

35‧‧‧Upper fixing slot

36‧‧‧上容槽

40‧‧‧ Hinges

50‧‧‧Lock module

51‧‧‧Locks

510‧‧‧Under fixing screws

511‧‧‧Keyhole

512‧‧‧Positioning holes

52‧‧‧Lock

53‧‧‧Parts

530‧‧‧Upper fixing screws

531‧‧‧First slide hole

532‧‧‧1 piece

533‧‧‧ Guide hole

534‧‧‧Second slide hole

535‧‧ ‧Flap

54‧‧‧Lock hook

540‧‧‧ hook

541‧‧‧guides

542‧‧‧Connecting Department

543‧‧‧Extension

544‧‧‧Check groove

55‧‧‧Control button

550‧‧‧ binding column

56‧‧‧Compression spring

57‧‧‧Positioning column

Figure 1 is a perspective view of a lock structure of a conventional box.

Figure 2 is a perspective view of the present invention.

Figure 3 is a schematic perspective view of the lock of the present invention.

Fig. 4 is a perspective view showing the three-dimensional assembly of the lock piece of the present invention.

Figure 5 is a perspective exploded view of the lock module of the present invention.

Figure 6 is a perspective enlarged view of the locking module of the present invention.

Fig. 7 is a schematic view showing the operation of the casing of the present invention in an open state.

Fig. 8 is a schematic view showing the operation of the casing of the present invention in a closed state.

Figure 9 is a schematic view showing the operation of the present invention by using the lock module to open the case.

Figure 10 is another embodiment of the present invention.

Referring to FIGS. 2-5, the lock structure of the box body of the present invention includes a box body 20, a box cover 30, a hinge 40 and two latch modules 50. The box body 20 has a bottom plate 21 and four lower side plates 22 that are erected and joined to the periphery of the bottom plate 21. The bottom plate 21 and the four lower side plates 22 are enclosed by a lower opening groove 23. Wherein the upper edge of the lower side side plate 22 on the front side is adjacent to both sides There are two lower coupling grooves 24, and the lower coupling groove 24 has a shallow fixing groove 25 formed on one of the front side and the upper side of the lower side plate 22, and is disposed in the lower fixing groove 25 and is accommodated at a lower one. Slot 26.

The cover 30 has a top plate 31 and four upper side plates 32 that are erected to the periphery of the top plate 31. The top plate 31 and the four upper side plates 32 enclose an opening 33 facing downward. The upper edge of the front side upper side plate 32 has two upper coupling grooves 34, and the upper coupling groove 34 has a shallow groove and is disposed on one of the front side and the lower side of the upper side plate 32, and is disposed thereon. The groove 36 is accommodated in one of the fixing grooves 35 and deeper.

The hinge 40 is a hinged hinge which is coupled to the top surface of the lower side panel 22 of the rear side of the box body 20 and the bottom surface of the upper side panel 32 of the rear side of the box cover 30, so that the box cover 30 can be hinged by the hinge 40 is turned over and closed on the box body 20.

The two locking modules 50 include two locking pieces 51 coupled to the two lower coupling slots 24 and two locking heads 52 coupled to the two upper coupling slots 34. The locking piece 51 is L-shaped and embedded in the lower fixing groove 25, and is screwed and fixed to the box body 20 by two lower fixing screws 510 passing through the upright piece thereof. The horizontal piece of the piece 51 has a locking hole 511 and a positioning hole 512 communicating with the lower receiving groove 26. The lock 52 includes a piece 53 , a lock hook 54 , a control button 55 , a compression spring 56 and a positioning post 57 . The seat piece 53 is L-shaped and embedded in the upper fixing groove 35, and is screwed to the cover 30 by two upper fixing screws 530 passing through the upright piece thereof. The horizontal piece of the seat piece 53 has a first sliding hole 531 extending through the upper receiving groove 36 and a protrusion 532 protruding toward the upper receiving groove 36. The protruding piece 532 is away from the first sliding hole. One end of the 531 is at a distance and has a guiding hole 533 thereon. Upright of the seat piece 53 The sheet has a second sliding hole 534 extending through the upper receiving groove 36 and a blocking piece 535 protruding from one side of the second sliding hole 534 toward the upper receiving groove 36. The locking hook 54 is disposed in the upper receiving groove 36 and is movable in the first sliding hole 531 to a locking position and an unlocking position. The locking hook 54 has a hook portion 540 and a guiding rod 541. A connecting portion 542 and an extending piece 543. The hook portion 540 protrudes from the lower side of the seat piece 53 by the first sliding hole 531. When the locking hook 54 is in the locking position, the hook portion 540 can be hooked through the locking hole 511. On the inner edge of one side, the hook portion 540 can be separated from the side of the lock hole 511 when the lock hook 54 is in the unlocked position. The guide rod 541 is coupled to the connecting portion 542 at one end, and the other end is axially movably disposed in the guiding hole 533. An extending piece 543 is protruded from a side of the connecting rod 542 opposite to the side of the guiding rod 541. The lower side of the extending piece 543 is slidably opposite to the upper side of the horizontal piece of the seat piece 53. A hook groove 544 is formed between the extending piece 543 and the hook portion 540 for the side of the locking hole 511 to be embedded. The control button 55 is fastened to the front side of the upright piece of the seat piece 53 and has a coupling post 550 passing through the second sliding hole 534 to be coupled to the coupling portion 542 of the locking hook 54. The compression spring 56 is sleeved on the guiding rod 541, and one end of the coupling spring 542 is mounted on the protruding piece 532 at the other end of the connecting portion 542 to provide an elastic force to move the locking hook 54 to the locking position. The positioning post 57 is coupled to the horizontal piece of the seat piece 53 and protrudes from the lower side. When the cover 30 is closed with the case body 20, the positioning post 57 is embedded in the positioning hole 512 of the locking piece 51. .

Referring to FIG. 7, it is pointed out that when the cover 30 is normally opened, the lock hook 54 is pushed by the elastic force of the compression spring 56, and the lock hook 54 is blocked by the stopper 535. The position of the lock.

Referring to FIG. 8, it is pointed out that when the cover 30 is closed downward, the lower end of the hook 540 of the lock hook 54 is pushed against the side of one of the lock holes 511 to make the lock hook. The lateral displacement to the unlocking position 54 simultaneously compresses the compression spring 56 until the hook portion 540 fully enters the lower receiving groove 26 below the locking piece 51, and the locking hook 54 receives the compression spring 56. The elastic force acts to be laterally displaced to the latching position, so that the hook portion 540 is hooked on the lower edge of the side of the locking hole 511 of the locking piece 51, and at the same time, the positioning post 57 is also embedded in the positioning hole 512. In this way, the purpose of the lock can be achieved.

Referring to FIG. 9, it is pointed out that when the two control buttons 55 are pulled to the opposite side by the thumb of the two hands so that the two locking hooks 54 are displaced together to the unlocked position, the locking hook 54 is used. The compression spring 56 is compressed, and the hook portion 540 is separated from the side of the locking hole 511 of the locking piece 51 and is not hooked on the locking piece 51. At this time, the case can be easily opened by simply turning up the cover 30 by the hands of the pull control knob 55.

Referring to FIG. 10, it is another embodiment of the present invention, and the structure thereof is substantially the same as that of the above embodiment. The difference is that the locking piece 51 of the embodiment is formed in a rectangular frame shape and is externally attached. The manner is combined with the front side of the lower side panel 22 of the box body 20. The seat piece 53 of the lock head 52 is formed in a rectangular frame shape and is attached to the front side surface of the side panel 32 above the box cover 30 in an external manner.

The present invention can be designed by the user by using the lock 52 of the two locking module 50 on the cover 30 and the locking piece 51 on the box body 20. Pulling the two control knobs 55 to the opposite sides to make the two lock hooks 54 When the side of the locking hole 511 of the locking piece 51 is disengaged, the cover 30 can be easily opened by the hands, so that the opening operation of the box is more labor-saving and convenient, and the cover 30 is not accidentally slipped. A situation in which the user's finger is caught by falling off. In particular, when the cover 30 is attached to the case body 20, the positioning posts 57 of the two lock heads 52 on the cover 30 are respectively inserted into the positioning holes 512 of the two locking pieces 51 of the case body 20. Therefore, by the mutual engagement of the two positioning posts 57 and the two positioning holes 512, the cover 30 and the case body 20 can be closed without horizontal displacement, so when the two When the lock hook 54 of the lock head 52 is hooked on the side of the lock hole 511 of the lock piece 51, the unhooking is not performed and the accidental unlocking occurs, so that the effect of the lock is preferable.

50‧‧‧Lock module

51‧‧‧Locks

511‧‧‧Keyhole

512‧‧‧Positioning holes

52‧‧‧Lock

53‧‧‧Parts

531‧‧‧First slide hole

532‧‧‧1 piece

533‧‧‧ Guide hole

534‧‧‧Second slide hole

535‧‧ ‧Flap

54‧‧‧Lock hook

540‧‧‧ hook

541‧‧‧guides

542‧‧‧Connecting Department

543‧‧‧Extension

544‧‧‧Check groove

55‧‧‧Control button

550‧‧‧ binding column

56‧‧‧Compression spring

57‧‧‧Positioning column

Claims (7)

A lock structure of a box body comprises: a box body having a lower receiving slot facing upwardly; a box cover having a receiving groove facing the lower opening, and the rear side of the box cover swingingly Combined with the rear side of the box body; and the two locking module, comprising two locking pieces disposed on the front side of the box body and two locking heads disposed on the front side of the box cover, the locking piece has a a locking hole and a positioning hole, the locking head comprises a piece, a locking hook, a control button, a compression spring and a positioning post, the inner side of the seat piece is coupled to the box cover and has a first sliding hole And a second sliding hole and a protruding piece, the protruding piece is located on an inner side surface of the seat piece and has a guiding hole, wherein the locking hook is movable in the first sliding hole to a locking position and an unlocking position, The hook has a hook portion, a guiding rod and a connecting portion, and the hook portion protrudes from the outer side of the seat piece, and the hook portion can be hooked on one of the locking holes when the locking hook is in the locking position The inner edge of the side edge, when the hook is in the unlocking position, the hook portion can be separated from the side of the locking hole, and the guiding rod is disposed in the guiding hole, the control button And a coupling post is coupled to the connecting portion of the locking hook through the second sliding hole on the outer side of the seat piece, the compression spring is sleeved on the guiding rod, and one end of the seat is at the connecting portion The one end of the tab can provide an elastic force to move the hook to the latching position, and the positioning post is coupled to the seat piece and protrudes from the outer side of the seat piece when the cover is closed with the box body. The positioning post is embedded in the positioning hole of the locking piece. The lock structure of the box body of claim 1, wherein the box system has a bottom plate and four lower side plates erected on the periphery of the bottom plate, and the bottom plate and the four lower side plates enclose the lower receiving groove. Positioned on the lower side of the front side for the two locking pieces to be combined, The cover has a top plate and four upper side plates erected on the periphery of the top plate. The top plate and the four upper side plates enclose the upper receiving groove, and the upper side plate is located on the front side for the two locks to be combined. The lock structure of the box body according to claim 2, further comprising at least one lower side plate hinged on the rear side of the box body and an upper side plate on the rear side of the box cover, so that the cover can be The hinge is turned over and closed on the box body. The latching structure of the box body according to claim 2, wherein the upper side of the box body at the lower side of the front side has two lower engaging slots for the two locking pieces to be combined, the lower engaging groove has a shallower position a lower fixing groove of the front side and the upper side of the lower side plate, and a lower receiving groove provided in the lower fixing groove corresponding to the locking hole and the positioning hole, the lower receiving groove is adapted to receive the hook of the locking hook And the positioning post, the cover is located on the lower edge of the upper side of the front side, and has two upper coupling grooves for combining the two locks, the upper joint groove has a shallower position on the front side and the lower side of the upper side plate An upper fixing groove is disposed in the upper fixing groove and is disposed on the one of the deeper fixing groove, wherein the upper receiving groove is configured to receive the tab, the locking hook and the compression spring, and the locking piece is L-shaped and embedded The locking hole and the positioning hole are disposed on the horizontal piece of the locking piece, and the seat piece is L-shaped and embedded in the upper fixing groove, the first sliding hole and the first sliding hole The positioning post is disposed on the horizontal piece of the seat piece, and the second sliding hole is disposed on the upright piece of the seat piece. The lock structure of the box body of claim 4, wherein the seat piece has a blocking piece, and the blocking piece protrudes from the one side edge of the second sliding hole toward the inner side surface to block the locking hook. The connecting portion is located at the latching position. The lock structure of the box body according to claim 5, wherein the seat piece has an extending piece extending from one side of the connecting portion, and the lower side of the extending piece is slidable The inner side of the horizontal piece of the seat piece forms a hook groove between the extending piece and the hook portion for embedding the side of the locking hole of the locking piece. The lock structure of the box body according to claim 6, wherein the lock piece is screwed to the box body by two lower fixing screws, and the seat piece is screwed on the box cover by two upper fixing screws.