TWI810127B - chain lock - Google Patents

Abstract

The present invention is to provide a chain lock, which is mainly composed of a lock case, a lock core seat, a lock core, a fixed insert plate, a moving part, a torsion spring, a swivel seat, a locking seat, and a positioning block. , a compression spring, a cover plate, two screws and a chain, wherein the lock core is set in the lock core seat, the linkage is set in the lock core seat, and the torsion spring is set in the lock core seat Between the lock core seat and the linking piece, the swivel seat is arranged on one side of the lock core seat, the catch seat is assembled on the turn seat, and the positioning block is arranged between the catch seat and the turn Between the seats, the compression spring is set between the positioning block and the swivel seat, the above-mentioned components are set in the lock case, and then the fixed end of the chain is inserted into the lock case and the lock core seat Insert the fixed plate into the first fixed slot of the lock core seat and the second fixed slot of the chain, and then cover the cover Set at one end of the lock case, through the other end of the lock case, the two screws are passed through the second through hole of the latch seat and the first through hole of the lock core seat and screwed into the screw of the cover plate. In the hole, like this, the chain can be locked firmly, and the chain lock can be easily disassembled.

Description

chain lock

The present invention relates to a chain lock, in particular to a chain lock that can achieve the best anti-theft effect for locked objects, and can conveniently disassemble each component of the lock for classification and recycling.

Press, the general chain lock is mainly used to lock items on fixed objects to prevent thieves from stealing items at will, for example: locking bicycles or carts on railings or pillars, and the structure of general chain locks , the two ends of a chain are connected with locks that can be interlocked together, and the locks are paired locks or padlocks, which can prevent the locked items from being moved to prevent the items from being stolen: however, In the known chain lock, the lock and the chain are set separately, the lock is easy to lose, and the lock structure of the general lock is very simple, the thief can easily unlock or destroy the lock from the outside with a tool, so the anti-theft effect is not ideal; There is also a chain lock that combines the chain and the lock as one, but the chain lock cannot be disassembled and repaired after the combination, and if the chain lock is damaged, the outer shell of the lock must be destroyed with a destructive tool before the internal components can be disassembled. For sorting and recycling, it is inconvenient to recycle and disassemble.

The main purpose of the present invention is to provide a chain lock, which can effectively solve the shortcomings of the conventional chain locks in use.

Chain lock of the present invention comprises: A lock case, the lock case is provided with an accommodating groove, the wall surface of the lock case is provided with two first chain sockets connected to the accommodating groove, and the wall surface of the accommodating groove of the lock case is protruded with positioning convex body; A lock core seat is set in the accommodation groove of the lock case. One end of the lock core seat is provided with a lock core accommodation slot and a first fixing slot. The wall surface of the lock core seat is provided with two second Chain socket, the two second chain sockets are connected to the first fixing slot, the other end of the lock core seat is provided with a first groove, and the first groove is provided with a first slot, the A first spring socket is provided on the inner wall of the first groove, and a through hole is provided in the lock core seat to communicate with the first groove and the lock core accommodation groove, and one end of the lock core seat is provided with two The first through hole runs through the other end of the core seat; A lock core is set in the lock core slot of the lock core base, one end of the lock core is provided with a key insertion hole, and the other end of the lock core is provided with a rotating convex body; A fixed plate, which is inserted into the first fixed slot of the lock core seat; A link is set in the lock core seat, one end of the link is provided with a boss, and the outer end surface of the boss is provided with a positioning jack, and the positioning jack is used for the rotation protrusion of the lock core Set in, the peripheral wall surface of the link is provided with a limit convex body, the limit convex system is set in the first slot of the lock core seat, the link is provided with a second spring socket, the link The other end of the piece is protruded with a linkage convex body; A torsion spring is sheathed on the boss of the linkage and is located between the linkage and the core seat, the first end of the torsion spring is inserted into the first spring socket of the core seat Inside, the second end of the torsion spring is inserted into the second spring socket of the linkage; A swivel seat is set on one side of the lock core seat. The swivel seat is provided with a catch seat slot. The wall of the snap seat slot is oppositely provided with a steel ball groove. Inside the snap seat slot A positioning groove and two locking sockets are provided on the end surface, and a connection socket is provided in the positioning groove for the interlocking convex body of the linkage member to be inserted into, and two second slots are provided on the wall surface of the swivel seat; A card seat is assembled on the swivel seat, and the card seat is provided with a plug-in part, and the plug-in part is set in the slot of the card seat of the swivel seat, and the two sides of the plug-in part are respectively There is a positioning convex body, and the two positioning convex systems are respectively set in the second slots of the swivel seat. The card seat is provided with a card slot, and the insertion part is provided with a hole through the card slot. There are two locking steel balls in the steel ball container, and the outer wall of the latch seat is provided with a positioning groove, which is used for the positioning convex body of the lock housing to be embedded. Two positioning bosses and a through hole are protrudingly provided on the outer end surface of the insertion part, and a second through hole is provided in each of the two positioning bosses to penetrate into the latch slot, and two notches are provided on the through hole; A positioning block is set in the through hole of the locking seat. The positioning block is provided with a spring container. The outer wall of the positioning block is provided with two locking protrusions. The two locking protrusions correspond to the The second card socket of the swivel seat and the two gaps of the card seat; A compression spring is arranged in the spring containing groove of the positioning block, and resists in the positioning groove of the swivel seat; A cover plate is located at one end of the lock case, and the cover plate is provided with a key hole and two screw holes; Two screws, which pass through the second hole of the latch seat and the first hole of the lock core seat, and are screwed into the screw holes of the cover plate; A chain, one end of which is set as a fixed end and the other end is set as a movable end, the fixed end is inserted into the two first chain sockets of the lock case and the two second chain sockets of the lock core base The opposite inner surface of each end is provided with a second fixing slot, and the fixing plate in the lock core seat is inserted into the two second fixing slots of the fixed end to fix the fixed end of the chain. The movable end of the chain is inserted in the catch slot of the catch seat for the lock steel ball to catch and lock.

The chain lock of the present invention has the advantages of: one end of the chain is connected with the lock case, so there is no risk of loss, and the overall fixed structure is hidden inside the lock case, so it will not be damaged without the correct key It cannot be unlocked and has excellent anti-theft effect. The chain lock can be easily disassembled and repaired. If the chain lock is damaged and needs to be discarded, the internal components can be easily disassembled for sorting and recycling, which is very environmentally friendly.

Relevant present invention is to reach above-mentioned purpose of use and effect, the technical means that adopts, hereby enumerates preferred and feasible embodiment, and cooperates as shown in the drawing, is described in detail as follows:

The embodiments of the present invention, please refer to the first and second figures, mainly include: a lock case 1, the lock case 1 is provided with an accommodating groove 10, and the wall surface of the lock case 1 is provided with two connected to The first chain socket 11 of the accommodating groove 10 is relatively protrudingly provided with a positioning protrusion 12 on the wall surface of the accommodating groove 10 of the lock case 1; Placed in the slot 10, one end of the lock core seat 2 is provided with a lock core accommodation slot 20 and a first fixing slot 21, and the wall surface of the lock core seat 2 is provided with two second chain jacks 22, the two second The two chain insertion holes 22 are connected to the first fixed slot 21, the other end of the lock core seat 2 is provided with a first groove 23, and the first groove 23 is provided with a first slot 24, the first groove 24 A first spring socket 25 is provided on the inner wall of a groove 23, and a through hole 26 is provided in the lock core seat 2 to communicate with the first groove 23 and the lock core accommodation groove 20, and the lock core seat 2 One end is provided with two first perforations 27 to run through the other end of the lock core seat 2; a lock core 3 is arranged in the lock core accommodation groove 20 of the lock core seat 2, and one end of the lock core 3 is provided with There is a key socket 30, and the other end of the lock core 3 is protruded with a rotating convex body 31; a fixed insert plate 32 is inserted in the first fixed slot 21 of the lock core seat 2; a link 4, It is located in the lock core seat 2, and one end of the linkage 4 is provided with a protruding post 40, and the outer end surface of the protruding post 40 is provided with a positioning jack 41, and the positioning jack 41 is used for the lock core 3. The rotating convex body 31 is set in, and a limit convex body 42 is protruded on the peripheral wall surface of the linkage part 4, and the position limiting convex body 42 is arranged in the first slot 24 of the lock core seat 2. The linkage piece 4 A second spring socket 43 is provided on the top, and the other end of the linkage 4 is protruded with a linkage protrusion 44; a torsion spring 45 is sleeved on the protrusion 40 of the linkage 4, and is located on the linkage. 4 and the lock core seat 2, the first end 450 of the torsion spring 45 is inserted in the first spring insertion hole 25 of the lock core seat 2, and the second end 451 of the torsion spring 45 is inserted in the In the second spring socket 43 of the linkage 4; a swivel seat 5 is arranged on one side of the lock core seat 2. A steel ball groove 51 is oppositely provided on the wall surface, and a positioning groove 52 and two latching sockets 53 are provided on the inner end surface of the latch seat accommodation groove 50, and a positioning groove 52 is provided for the linkage 4. The connecting socket 54 where the interlocking convex body 44 is set, the wall surface of the swivel seat 5 is provided with two opposite second notches 55; 6 is provided with a plug-in part 60, and the plug-in part 60 is set in the catch seat accommodation groove 50 of the swivel seat 5, and the two sides of the plug-in part 60 are protruded with a positioning convex body 61, and the two positioning convex bodies The bodies 61 are respectively arranged in the two second slots 55 of the swivel seat 5, the catch seat 6 is provided with a catch slot 62, and the inserting part 60 is provided with a steel ball holder passing through the catch slot 62. Groove 63, two locking steel balls 64 are relatively set in the steel ball containing groove 63, and two relative positioning slots 65 are provided on the outer wall of the locking seat 6, and the positioning slots 65 are provided for the lock housing 1. The positioning convex body 12 is set, and the outer end surface of the insertion part 60 is protruded with two positioning protrusions 66 and a through hole 67, and each of the two positioning protrusions 66 is provided with a second through hole 660 penetrating to the latch slot 62, and the through hole 67 is provided with two gaps 670; a positioning block 7 is located in the through hole 67 of the latch seat 6, the positioning block 7 is provided with a spring groove 70, the positioning block 7 The outer wall surface is convexly provided with two latching convex bodies 71, and the two latching convex bodies 71 are corresponding to the two latching sockets 53 of the swivel seat 5 and the two gaps 670 of the latching seat 6; a compression spring 72 is Set in the spring housing groove 70 of the positioning block 7, and resist in the positioning groove 52 of the swivel seat 5; a cover plate 8 is set on the lock housing 1, and the cover plate 8 is provided with a Key hole 80 and two screw holes 81; two screws 82 are passed through the second hole 660 of the card seat 6 and the first hole 27 of the lock core seat 2, and screwed to the screw hole of the cover plate 8 81; a chain 9, one end is set as a fixed end 90, and the other end is set as a movable end 91, and the fixed end 90 is inserted into the two first chain sockets 11 of the lock case 1 and the lock core seat 2 In the two second chain sockets 22, a second fixed slot 900 is respectively provided on the opposite inner surface of the fixed end 90, and the fixed insert plate 32 located in the lock core seat 2 is inserted into the two second fixed inserts. In the groove 900, the movable end 91 of the chain 9 is inserted in the catch slot 62 of the catch seat 6, so that it is a chain lock structure.

When the present invention is assembled, as shown in the first to fifth figures, the compression spring 72 is set in the spring container 70 of the positioning block 7, and the positioning block 7 is set in the through hole 67 of the locking seat 6, so that The two locking protrusions 71 of the positioning block 7 are respectively set in the two gaps 670 of the locking seat 6, and the two locking steel balls 64 are set in the steel ball groove 63 of the locking seat 6, and then the locking seat 6 The insertion part 60, the positioning block 7 and the compression spring 72 are assembled together in the catch seat accommodation groove 50 of the swivel base 5, so that the outer end of the compression spring 72 is held against the positioning groove 52 of the swivel base 5, The two positioning protrusions 61 of the catch seat 6 are respectively arranged in the two second notches 55 of the swivel seat 5, and the two locking steel balls 64 are respectively corresponding to the two steel ball grooves 51 of the swivel seat 5. 3 groups are set in the lock core slot 20 of the lock core seat 2, and the torsion spring 45 is sleeved on the boss 40 of the linkage 4, so that the second end 451 of the torsion spring 45 is embedded in the second end of the linkage 4. In the spring socket 43, the linking piece 4 and the torsion spring 45 are assembled in the through hole 26 and the first groove 23 of the lock core seat 2, and the first end 450 of the torsion spring 45 is embedded in the lock core seat In the first spring socket 25 of 2, the torsion spring 45 is elastically tightened, and the rotating convex body 31 of the lock core 3 is inserted into the positioning socket 41 at the end of the linkage piece 4, and the linkage piece 4 The limiting convex body 42 is set in the first slot 24 of the lock core seat 2, and then the swivel seat 5 is set on one side of the lock core seat 2, so that the interlocking convex body 44 of the linkage part 4 is inserted into the swivel seat 5 in the connection socket 54, and then put the above assembled components into the accommodation groove 10 of the lock case 1, and the two positioning protrusions 12 of the lock case 1 are respectively embedded in the latch seat 6. In the two positioning slots 65, the catch seat 6 is positioned in the lock case 1, and the second chain socket 22 of the lock core seat 2 is respectively aligned with the two first chain sockets 11 of the lock case 1, Then insert the fixed end 90 of the chain 9 into the first chain hole 11 of the lock case 1 and the second chain hole 22 of the lock core seat 2, and insert the fixed plate 32 into the first chain hole 22 of the lock core seat 2. In the fixing slot 21 and the second fixing slot 900 of the chain 9 (as shown in the fifth figure), fix the fixed end 90 of the chain 9 on the lock case 1, and finally cover the cover plate 8 on the lock case On one end of 1, put two screws 82 through the other end of the lock case 1 through the two second through holes 660 in the catch slot 62 of the catch seat 6 and the two first through holes 27 of the lock core seat 2 The screws are locked in the two screw holes 81 of the cover plate 8, and each component is fixed in the lock case 1, so that the overall assembly can be completed.

When the present invention is used in a buckle, please refer to the sixth to eighth figures, the movable end 91 of the chain 9 of the present invention is passed around the object to be locked, such as the frame or wheel of a bicycle and the fixed column or fixed frame Then insert the movable end 91 of the chain 9 into the latch slot 62 of the latch seat 6 from the end of the lock case 1, and the movable end 91 of the chain 9 will push the positioning block 7 to move toward the swivel seat 5 , and extrude the compression spring 72 to be in an elastic compression state, and the two locking protrusions 71 of the positioning block 7 are separated from the second gap 670 of the locking seat 6 and inserted into the second locking socket 53 of the swivel seat 5 respectively ( As shown in the seventh figure), the swivel seat 5 and the locking seat 6 are no longer locked by the two locking protrusions 71 of the positioning block 7, so that the swivel seat 5 can rotate, and the swivel seat 5 is held by the torsion spring 45 The elastic recovery drives the linkage 4 to rotate, and the linkage 4 also drives the swivel base 5 to rotate, and the steel ball groove 51 of the swivel base 5 is separated from the position of the steel ball groove 63 of the corresponding latch seat 6 (as shown in the eighth figure), and The positioning block 7 and its two locking protrusions 71 also rotate with the swivel base 5 and leave the position corresponding to the notch 670 of the locking base 6, and the inner wall of the swivel base 5 pushes the two locking steel balls 64 to move inward and lock them on the chain In the movable end 91 of the chain 9, the movable end 91 of the chain 9 is buckled and positioned in the lock housing 1, so that the action of locking can be completed.

When the present invention is unlocked, please refer to Figures 9 and 10, and only need to insert the key A into the key hole 80 of the cover plate 8 and the key socket 30 of the lock core 3 to unlock the lock core 3 and then turn it. The lock core 3, the rotating convex body 31 of the lock core 3 drives the linkage piece 4 to rotate, and the torsion spring 45 is in an elastic torsion state, and the linkage convex body 44 of the linkage piece 4 drives the swivel seat 5 to rotate, so that the steel ball of the swivel seat 5 The groove 51 returns to the position corresponding to the steel ball groove 63 of the locking seat 6, and the locking steel ball 64 can be moved outward to the steel ball groove 51 of the swivel seat 5, and is no longer stuck on the movable end 91 of the chain 9, and the chain 9 The movable end 91 can be extracted from the catch slot 62 of the catch seat 6, so that the unlocking action can be completed. The present invention is very convenient in use and can be fixed by the lock of any article; and the present invention is used to fix The screw 82 of the overall structure is hidden in the inside of the lock housing 1, and the thief cannot dismantle the chain lock of the present invention from the outside, so the anti-theft effect is excellent.

In the present invention, if the internal components are damaged and need to be repaired or the whole lock is not in use and wants to be discarded and recycled, please refer to the eleventh figure, only need to unlock the chain lock, and engage the movable end 91 of the chain 9 from the locking seat 6 Take it out from the slot 62, you can insert the tool B into the card slot 62, disassemble the screw 82, and remove the screw 82 screwed on the cover plate 8, and then each component can be locked from the shell 1 Dismantling and sorting, no need to use destroying tools to destroy the lock case 1, it is very convenient and fast to disassemble and repair the internal components or to classify and recycle the components.

In summary, the present invention has indeed achieved the intended purpose and effect, and is more ideal and practical than those known in the art. However, the above-mentioned embodiments are only specific descriptions for the preferred embodiments of the present invention. This embodiment is not intended to limit the scope of the patent application of the present invention. For example, all other equal changes and modifications that are not deviated from the technical means disclosed in the present invention should be included in the scope of the patent application covered by the present invention.

1: lock case 10: storage tank 11: The first chain socket 12: Positioning convex body 2: lock core seat 20: lock heart container 21: The first fixed slot 22: Second chain socket 23: First groove 24: The first missing slot 25: First spring jack 26: Through hole 27: First piercing 3: lock heart 30: key jack 31: rotating convex body 32: fixed board 4: Linkage 40: convex post 41:Positioning jack 42: limit convex body 43: Second spring jack 44: Linkage convex body 45: torsion spring 450: first end 451: second end 5: Transposition 50: Buckle holder slot 51: steel ball groove 52: positioning groove 53: card jack 54: Connection jack 55: The second missing slot 6: Card seat 60: socket part 61: Positioning convex body 62: Card slot 63: steel ball container 64: Locking steel ball 65:Positioning grooving 66:Positioning post 660: second perforation 67: through hole 670: Gap 7: Positioning block 70: spring container 71: locking convex body 72: Compression spring 8: Cover 80: key piercing 81: screw hole 82: screw 9: chain 90: fixed end 900: Second fixed slot 91: Activity side A: key B: tools

The first figure shows a three-dimensional exploded view of the embodiment of the present invention. The second figure is a three-dimensional exploded view of another angle of the embodiment of the present invention. Shown in the third figure is a three-dimensional combined view of the embodiment of the present invention. Shown in the fourth figure is a combined cross-sectional view of the embodiment of the present invention. The fifth figure is a schematic cross-sectional view of the fixed end of the chain fixed in the lock housing according to the embodiment of the present invention. Shown in the sixth figure is a schematic diagram when the embodiment of the present invention is locked. Shown in the seventh figure is a schematic cross-sectional view of another angle when the embodiment of the present invention is locked. Shown in the eighth figure is a schematic cross-sectional view of an embodiment of the present invention when it is locked. Figure 9 is a schematic diagram of unlocking according to the embodiment of the present invention. Figure 10 is a schematic cross-sectional view of the embodiment of the present invention when it is unlocked. Figure 11 is a schematic diagram of the intended disassembly of the lock according to the embodiment of the present invention.

1: lock case

10: storage tank

11: The first chain socket

12: Positioning convex body

2: lock core seat

20: lock heart container

21: The first fixed slot

22: Second chain socket

23: First groove

24: The first missing slot

25: First spring jack

26: Through hole

27: First piercing

3: lock heart

31: rotating convex body

32: fixed board

4: Linkage

40: convex column

42: limit convex body

43: Second spring jack

44: Linkage convex body

45: torsion spring

450: first end

451: second end

5: Transposition

50: Buckle holder slot

51: steel ball groove

52: positioning groove

53: card jack

54: Connection jack

55: The second missing slot

6: Card seat

60: socket part

61: Positioning convex body

62: Card slot

63: steel ball container

64: Locking steel ball

65:Positioning grooving

66:Positioning post

660: second perforation

67: through hole

670: Gap

7: Positioning block

70: spring container

71: locking convex body

72: Compression spring

8: Cover

80: key piercing

81: screw hole

82: screw

9: chain

90: fixed end

900: Second fixed slot

Claims (1)

A chain lock comprising: A lock case, the lock case is provided with an accommodating groove, the wall surface of the lock case is provided with two first chain sockets connected to the accommodating groove, and the wall surface of the accommodating groove of the lock case is protruded with positioning convex body; A lock core seat is set in the accommodation groove of the lock case. One end of the lock core seat is provided with a lock core accommodation slot and a first fixing slot. The wall surface of the lock core seat is provided with two second Chain socket, the two second chain sockets are connected to the first fixing slot, the other end of the lock core seat is provided with a first groove, and the first groove is provided with a first slot, the A first spring socket is provided on the inner wall of the first groove, and a through hole is provided in the lock core seat to communicate with the first groove and the lock core accommodation groove, and one end of the lock core seat is provided with two The first through hole runs through the other end of the core seat; A lock core is set in the lock core slot of the lock core base, one end of the lock core is provided with a key insertion hole, and the other end of the lock core is provided with a rotating convex body; A fixed plate, which is inserted into the first fixed slot of the lock core seat; A link is set in the lock core seat, one end of the link is provided with a boss, and the outer end surface of the boss is provided with a positioning jack, and the positioning jack is used for the rotation protrusion of the lock core Set in, the peripheral wall surface of the link is provided with a limit convex body, the limit convex system is set in the first slot of the lock core seat, the link is provided with a second spring socket, the link The other end of the piece is protruded with a linkage convex body; A torsion spring is sheathed on the boss of the linkage and is located between the linkage and the core seat, the first end of the torsion spring is inserted into the first spring socket of the core seat Inside, the second end of the torsion spring is inserted into the second spring socket of the linkage; A swivel seat is set on one side of the lock core seat. The swivel seat is provided with a catch seat slot. The wall of the snap seat slot is oppositely provided with a steel ball groove. Inside the snap seat slot A positioning groove and two locking sockets are provided on the end surface, and a connection socket is provided in the positioning groove for the interlocking convex body of the linkage member to be inserted into, and two second slots are provided on the wall surface of the swivel seat; A card seat is assembled on the swivel seat, and the card seat is provided with a plug-in part, and the plug-in part is set in the slot of the card seat of the swivel seat, and the two sides of the plug-in part are respectively There is a positioning convex body, and the two positioning convex systems are respectively set in the second slots of the swivel seat. The card seat is provided with a card slot, and the insertion part is provided with a hole through the card slot. There are two locking steel balls in the steel ball container, and the outer wall of the latch seat is provided with a positioning groove, which is used for the positioning convex body of the lock housing to be embedded. Two positioning bosses and a through hole are protrudingly provided on the outer end surface of the insertion part, and a second through hole is provided in each of the two positioning bosses to penetrate into the latch slot, and two notches are provided on the through hole; A positioning block is set in the through hole of the locking seat. The positioning block is provided with a spring container. The outer wall of the positioning block is provided with two locking protrusions. The two locking protrusions correspond to the The second card socket of the swivel seat and the two gaps of the card seat; A compression spring is arranged in the spring containing groove of the positioning block, and resists in the positioning groove of the swivel seat; A cover plate is located at one end of the lock case, and the cover plate is provided with a key hole and two screw holes; Two screws, which pass through the second hole of the latch seat and the first hole of the lock core seat, and are screwed into the screw holes of the cover plate; A chain, one end of which is set as a fixed end and the other end is set as a movable end, the fixed end is inserted into the two first chain sockets of the lock case and the two second chain sockets of the lock core base The opposite inner surface of each end is provided with a second fixing slot, and the fixing plate in the lock core seat is inserted into the two second fixing slots of the fixed end to fix the fixed end of the chain. The movable end of the chain is inserted in the catch slot of the catch seat for the lock steel ball to catch and lock.

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