TWI634033B - Chain lock - Google Patents

Abstract

The present invention provides a chain lock, which is mainly provided with a lock body, the lock body is provided with a chain slot, a compression spring is disposed in the cavity of the lock body of the lock body, and a lock seat is also disposed at a lock chamber is disposed in the receiving cavity of the lock body of the lock body, and a lock seat is disposed under the lock core seat and disposed in the cavity of the lock body. The connecting seat is abutted against the compression spring, and an upper end of the insertion rod is inserted into the through hole of the connecting seat and inserted into the insertion groove of the lock core, and the bottom end of the insertion rod is worn through a through hole extending through the body of the lock, one end of the chain is fixed in one end of the chain slot of the lock body, and the other end of the chain is fastened by the plug to the body of the lock In the other end of the chain slot, it is convenient to lock the items to achieve the best anti-theft effect.

Description

Chain lock

The invention relates to a chain lock, in particular to a person who can conveniently lock items and achieve the best anti-theft function.

Press, the general chain lock is mainly used to lock the object on the fixed object, for example, the bicycle is locked on the column, and the structure of the general chain lock 1 is as shown in the first figure by a chain 10 The two ends are connected with a lock 11 that can be interlocked with each other, and the lock 11 is a check lock or a buckle lock, mainly to prevent the locked items from being moved to prevent the items from being stolen: However, the conventional chain The lock 1 has a lock 11 and a chain 10 which are separated, and the lock 11 is easily lost, and the lock structure of the lock 11 is extremely simple, and the thief can easily unlock or destroy the lock 11 with a tool, so the anti-theft effect is not ideal. .

The main object of the present invention is to provide a chain lock which can effectively solve the shortcomings of the conventional chain lock when it is used.

The chain lock of the present invention includes: a lock body, the lock system has a chain slot, and a top surface of the lock body is provided with a first through hole communicating with the chain slot, and a bottom surface of the lock body corresponds to A second through hole is disposed at a position of the first through hole, and a fixing bolt is disposed in the first through hole and the chain slot and is inserted into the second through hole. One end of the fixing bolt is provided with a ring groove. a positioning sleeve is disposed in the second through hole of the lock body and sleeved on one end of the fixing bolt, the positioning sleeve is provided with a recessed hole, and the recessed hole is convexly provided with a fixing bolt a locking seat in the ring groove, the locking body is provided with a protruding seat, the receiving seat is provided with a receiving chamber, and the receiving chamber ring is provided with a positioning groove, the diameter of the positioning groove is larger than the diameter of the receiving chamber and is a circular arc shape, a fixing hole is formed on the wall surface of the protrusion, the fixing hole is connected to the chamber, and a fixed column system The bottom of the chamber is provided with a through hole communicating with the slot of the chain, and an inner wall surface of the chain slot of the lock body is provided with a plug groove corresponding to the position of the through hole; a compression spring is disposed in a cavity of the protrusion of the lock body; a lock seat is disposed in a cavity of the protrusion of the lock body, and the key seat is provided with a key socket, and the lock core is disposed in the lock seat An accommodating slot is disposed, the key jack is connected to the accommodating slot, and a limiting slot is disposed on a wall surface of the accommodating slot, and a wall for the fixing post is disposed on the wall surface of the cinnar housing a positioning hole is further disposed on the wall surface of the lock core seat, a positioning steel ball is disposed in the positioning hole, and a positioning pin hole is further disposed on the wall surface of the lock core seat, and a positioning pin is inserted in the positioning a pin hole is disposed in a bottom surface of the pin hole; a lock core is disposed in the receiving groove of the lock core seat, and a protrusion is disposed at a bottom of the lock core, and the protrusion body is provided with a plug a groove, the arc surface of the convex body is provided with an arc-shaped notch, the arc-shaped notch is connected to the insertion groove, and the wall surface of the convex body a perforation is provided, and a fixing pin is disposed in the perforation. The wall surface of the lock core is provided with a groove. One part of a limiting post is disposed in the slot, and another part of the limiting post is fastened. a connecting seat is disposed under the lock core seat and disposed in the housing of the lock body, the connecting seat is provided with a through hole, and the through hole is provided on the inner wall surface of the connecting seat An arc-shaped cutting surface is provided on the wall surface of the connecting seat, and a hole is formed on the wall of the connecting seat. The bottom of the connecting seat is provided with a socket, and a coil spring is disposed between the connecting seat and the lock core seat. Inserted into the jack of the lock core seat, the other end of the coil spring is inserted into the jack of the connecting seat; a plug rod, the upper end of which is inserted through the through hole of the connecting seat and inserted The bottom end of the insertion rod extends through the through hole of the lock body, and the upper end of the insertion rod is provided with a protruding post, and the protruding post is provided with a pin hole, The pin hole of the insertion rod is inserted into the fixing pin of the lock core, and the insertion rod is integrated with the lock core; One end of the chain is fixed in one end of the chain slot of the lock body, and the other end of the chain is buckled in the other end of the chain slot of the lock body.

The chain lock of the invention has the advantages that the lock body and the chain are connected together without loss, and the whole structure is hidden inside the lock body, which is not easy to be destroyed, and the correct key is not easy to unlock, and has excellent anti-theft. efficacy.

1‧‧‧Chain lock

10‧‧‧Chain

11‧‧‧Locks

2‧‧‧Lock body

20‧‧‧Chain slot

21‧‧‧First perforation

22‧‧‧Second perforation

23‧‧‧Fixed bolt

230‧‧‧ Ring groove

24‧‧‧ Positioning sleeve

240‧‧‧ recessed hole

241‧‧‧

25‧‧‧Seat

250‧‧ ‧ room

251‧‧‧ positioning slot

252‧‧‧Fixed holes

26‧‧‧Fixed column

27‧‧‧through hole

28‧‧‧Insert trough

3‧‧‧Compression spring

4‧‧‧Lock seat

40‧‧‧Key jack

41‧‧‧ accommodating slots

42‧‧‧Limited slot

43‧‧‧ Guide slot

44‧‧‧Positioning holes

45‧‧‧ Positioning steel balls

46‧‧‧Position pin hole

47‧‧‧Locating pin

48‧‧‧ jack

5‧‧‧Lock

50‧‧‧ convex

51‧‧‧ Socket slot

52‧‧‧Arc-shaped missing slots

53‧‧‧Perforation

54‧‧‧fixed pin

55‧‧‧ slotting

56‧‧‧Limited Column

6‧‧‧Connecting seat

60‧‧‧Perforation

61‧‧‧Arc cut surface

62‧‧‧Arc-shaped slot

63‧‧‧ jack

64‧‧‧ coil spring

640‧‧‧ one end

641‧‧‧The other end

7‧‧‧Insert mast

70‧‧‧Bump

71‧‧ ‧ pinhole

8‧‧‧Chain

80‧‧‧ one end

81‧‧‧The other end

The first figure shows a schematic diagram of the use of a conventional chain lock.

The second figure is a three-dimensional combination diagram of an embodiment of the present invention.

The third figure is a perspective exploded view of the lock of the embodiment of the present invention.

The fourth figure shows an exploded perspective view of the chain and the lock of the embodiment of the present invention.

Figure 5 is a cross-sectional view showing the combination of the lock of the embodiment of the present invention.

Figure 6 is a cross-sectional view showing another embodiment of the lock of the embodiment of the present invention.

FIG. 7 is a cross-sectional view showing the lock of the embodiment of the present invention when the lock is locked.

The eighth figure is a schematic view showing the use of the embodiment of the present invention when locking.

For the purpose of the present invention, the preferred embodiments of the present invention are set forth below, and the following detailed description is given as follows: For the embodiment of the present invention, please refer to the second embodiment. As shown in the third, fourth and fifth figures, a lock body 2 is mainly provided. The lock body 2 is provided with a chain slot 20, and the top surface of the lock body 2 is provided with a first perforation communicating with the chain slot 20. A second through hole 22 is defined in the bottom surface of the lock body 2 corresponding to the first through hole 21, and a fixing bolt 23 is disposed through the first through hole 21 and the chain slot 20 and is inserted into the second hole In the through hole 22, one end of the fixing bolt 23 is provided with a ring groove 230, and a positioning sleeve 24 is disposed in the second through hole 22 of the lock body 2 and The sleeve 24 is disposed on one end of the fixing bolt 23, and the positioning sleeve 24 is provided with a recessed hole 240, and a recess 241 is defined in the recessed hole 240 for inserting into the annular groove 230 of the fixing bolt 23. A locking seat 25 is disposed on the lock body 2, and a cavity 250 is defined in the cavity 25, and a ring 251 is defined in the inner ring of the cavity 250. The diameter of the positioning groove 251 is larger than the diameter of the cavity 250. The fixing hole 252 is connected to the chamber 250, and a fixing post 26 is inserted into the fixing hole 252. The bottom of the chamber 250 is disposed at the bottom of the chamber 250. There is a through hole 27 connected to the chain slot 20, and an inner wall surface of the chain slot 20 of the lock body 2 is provided with a insertion slot 28 corresponding to the position of the through hole 27; a compression spring 3 is disposed at the The lock chamber 25 of the lock body 2 is disposed in the chamber 250 of the lock body 2 of the lock body 2, and the key base 4 is provided with a key socket 40. The locating seat 4 is provided with a receiving slot 41. The keyhole 40 is connected to the accommodating slot 41. The limiting slot 42 is defined in the wall surface of the accommodating slot 41. There is a guiding groove 43 for the end of the fixing column 26, and a positioning hole 44 is further disposed on the wall surface of the locking core seat 4, and a positioning steel ball 45 is disposed in the positioning hole 44, and the locking core seat 4 is A positioning pin hole 46 is further disposed on the wall surface. A positioning pin 47 is inserted into the positioning pin hole 46. The bottom surface of the locking core seat 4 is provided with a socket 48. A lock core 5 is disposed in the locking core. In the accommodating groove 41 of the seat 4, a bottom of the lock core 5 is provided with a convex body 50. The convex body 50 is provided with a insertion groove 51. The convex surface of the convex body 50 is provided with an arc-shaped vacant groove 52. The vacant slot 52 is connected to the insertion slot 51. The wall surface of the protrusion 50 is further provided with a through hole 53. A fixing pin 54 is disposed in the through hole 53. The slot 5 has a slot on the wall surface. 55, a portion of a limiting post 56 is disposed in the slot 55, and another portion of the limiting post 56 is disposed in the limiting slot 42 of the lock housing 4; a connecting bracket 6 is disposed at the The bottom of the lock base 4 is disposed in the chamber 250 of the lock body 2, and the connecting seat 6 is provided with a through hole 60. The inner wall surface of the through hole 60 of the connecting seat 6 is provided with an arc cutting surface 61. There is an arc on the wall Through slot 62, is provided with a socket 63, a coil spring 64 is provided between the line 6 and the lock core holder 4 connected to the base, the volume of the bottom of the connector housing 6 One end 640 of the spring 64 is inserted into the insertion hole 48 of the lock core seat 4, and the other end 641 of the coil spring 64 is inserted into the insertion hole 63 of the connection seat 6; a plug 7 and an upper end thereof The insertion hole is inserted into the through hole 60 of the lock body 5 and inserted into the insertion hole 51 of the lock core 5, and the bottom end of the insertion rod 7 extends through the through hole 27 of the lock body 2, the insertion The upper end of the mast 7 is provided with a stud 70. The stud 70 is provided with a pin hole 71. The pin hole 71 of the plug rod 7 is inserted into the fixing pin 54 of the lock core 5; 8. One end 80 is fixed in one end of the chain slot 20 of the lock body 2, and the other end 81 of the chain 8 is disposed in the other end of the chain slot 20 of the lock body 2, thus A chain lock structure.

When assembling, please refer to the third to fifth figures. First, the insertion rod 7 is inserted into the through hole 60 of the connecting seat 6, and the protruding post 70 of the insertion rod 7 is inserted into the insertion groove 51 of the lock core 5. The fixing pin 54 is inserted into the through hole 53 of the lock core 5 and the pin hole 71 of the insertion rod 7, and the lock core 5 and the insertion rod 7 are assembled together, and the coil spring 64 is sleeved on the connecting seat 6 The other end 641 of the coil spring 64 is inserted into the insertion hole 63 of the connecting seat 6, the limiting post 56 is set in the slot 55 of the lock core 5, and the lock core 5 is placed in the lock seat. 4 of the receiving slot 41, a portion of the limiting post 56 is disposed in the limiting slot 42 of the lock core seat 4, and one end of the coil spring 64 is inserted into the slot 48 of the lock core seat 4, and then The positioning pin 47 is inserted into the pin hole 46 of the lock core seat 4, and a part of the positioning pin 47 is inserted into the arcuate through groove 62 of the connecting seat 6 and the arcuate notch 52 of the lock core 5 to lock the core. 5. The connecting seat 6 and the plugging rod 7 are integrally connected with the lock core seat 4, and the positioning steel ball 45 is placed in the positioning hole 44 of the lock core seat 4, and one part of the positioning steel ball 45 is set in the connecting seat. In the arc-shaped through groove 62 of the 6th, the compression spring 3 is further disposed in the chamber 250 of the lock body 2, and then The components that are assembled with the lock core seat 4 are disposed in the chamber 250 of the lock body 2 such that the lower end portion of the plug rod 7 extends through the compression spring 3 and penetrates into the through hole 27 of the lock body 2. Then, the fixing post 26 is inserted into the fixing hole 252 of the boss 25, so that the inner end of the fixing post 26 is disposed in the guiding groove 43 of the lock core seat 4, and the lock core seat 4 and its components are assembled. The member is positioned in the chamber 250 of the lock body 2, and the connecting seat 6 is resisted On the compression spring 3, one end 80 of the chain 8 is disposed in one end of the chain slot 20 of the lock body 2, and then the fixing bolt 23 is inserted into the first through hole 21 of the lock body 2, one end 80 of the chain 8 and The second through hole 22 is disposed, and the positioning sleeve 24 is disposed in the second through hole 22, so that the edge 241 of the positioning sleeve 24 is embedded in the ring groove 230 of the fixing bolt 23, so that the fixing bolt 23 does not penetrate from the first through hole. 21 is detached, and one end 80 of the chain 8 is fixed in the chain slot 20 of the lock body 2 by the assembly of the fixing bolt 23 and the positioning sleeve 24, and the other end 81 of the chain 8 is disposed on the lock The other end of the chain slot 20 of the main body 2 can be inserted into the other end 81 of the chain 8 and the insertion slot 28 by the insertion rod 7, and the other end 81 of the chain 8 can be positioned on the lock body 2. The chain slot 20 is so that the overall assembly can be completed.

When in use, please refer to the fifth to eighth figure, the chain 8 of the present invention is wound on the item to be locked, such as the bicycle frame or the wheel, and the other end 81 of the chain 8 is inserted into the lock. In the chain slot 20 of the body 2, the other end 81 of the chain 8 is aligned with the position of the insertion slot 28 and the through hole 27 of the lock body 2 (as shown in FIG. 5), and then the convex locking seat 4 is extended. Pressed into the boss 25 of the lock body 2, the lock core 4 drives the lock core 5, the coil spring 64, the connecting seat 6 and the insertion rod 7 to move downward, and presses the compression spring 3 to make the compression spring 3 In the elastic compression state, the lower end portion of the insertion rod 7 which is inserted into the through hole 27 of the lock body 2 is inserted into the other end 81 of the chain 8 and inserted into the chain slot 20 of the lock body 2 and the insertion slot. 28, when the lock seat 4 is pressed down, the positioning steel ball 45 in the positioning hole 44 of the lock core seat 4 is moved downwards, and is located in the positioning groove 251 of the lock body 2, because the lock core seat 4 is fixed. The column 26 is restricted from rotating, so that when the coil spring 64 is elastically restored, the other end 641 drives the connecting seat 6 to rotate, and the connecting seat 6 is provided with a curved through groove 62, and the positioning pin 47 is located. The arc is formed in the groove 62, so that when the connecting seat 6 is rotated by the coil spring 64, the lock core 5 and the plug rod 7 are not driven, and the connecting seat 6 is driven by the elastic return of the coil spring 64. The through groove 62 is disengaged from the positioning hole 44 corresponding to the lock core seat 4, so that the outer wall surface of the connecting seat 6 abuts the positioning steel ball 45 disposed in the positioning hole 44 of the lock core seat 4. The positioning steel ball 45 is pushed outwardly, and a part of the positioning steel ball 45 is externally inserted into the positioning groove 251 in the convex seat 25 of the lock body 2 (as shown in FIG. 6), so that the locking can be completed. In the present invention, one end 80 of the chain 8 is fixed in the chain slot 20 of the lock body 2 by the fixing bolt 23 and the positioning sleeve 24, and the positioning position of the positioning steel ball 45, and the buckle of the insertion rod 7 The other end 81 of the chain 8 can be firmly locked in the chain slot 20 of the lock body 2 (as shown in the seventh and eighth figures). According to the lock structure of the present invention, the thief cannot know the internal lock by the appearance. Structure, so it can achieve the best anti-theft effect; when you want to unlock, just need to insert the key (not shown) into the key socket 40 of the lock seat 4, so that the key is deep into the lock 5 When the key 5 is rotated by the key, the lock core 5 is rotated by the fixing pin 54 to interlock the connecting seat 6. When the connecting seat 6 rotates, the connecting seat 6 drives the coil spring 64 to be elastically twisted, and the connecting seat 6 is connected. The arcuate through groove 62 is again corresponding to the positioning hole 44 of the lock core seat 4, and the positioning steel ball embedded in the positioning groove 251 of the lock body 2 Because it is no longer resisted by the outer wall surface of the connecting seat 6, it can be pushed into the arc-shaped through groove 62 of the connecting seat 6 along the arc surface of the positioning groove 251, and is no longer embedded in the positioning of the lock body 2. The compression spring 3 disposed in the cavity 250 of the lock body 2 is elastically restored to push the connecting seat 6 and the lock core seat 4 upward (as shown in FIG. 5), so that the lock seat 4 The upper part protrudes out of the lock body 2, and the insertion rod 7 moves away from the lock base 4 to disengage from the insertion slot 28 of the lock body 2 and the other end 80 of the chain 8. The chain 8 can be self-locking body 2 The chain slot 20 is taken out, so that the unlocking action can be completed. The invention is very convenient in use, can be used for the positioning of the buckle of any item, and has excellent anti-theft function.

In view of the above, the present invention has achieved the intended use and efficacy, and is more desirable and practical than the prior art, but the above embodiments are only specifically described for the preferred embodiment of the present invention. The present invention is not intended to limit the scope of the invention, and all other equivalents and modifications may be included in the scope of the invention covered by the invention.

Claims (1)

A chain lock includes: a lock body, the lock system has a chain slot, a top surface of the lock body is provided with a first through hole communicating with the chain slot, and a bottom surface of the lock body corresponds to the first a second through hole is disposed at a position of the through hole, and a fixing bolt is disposed in the first through hole and the chain slot and is inserted into the second through hole. One end of the fixing bolt is provided with a ring groove, and a positioning is provided. The sleeve is disposed in the second through hole of the lock body and sleeved on one end of the fixing bolt, the positioning sleeve is provided with a recessed hole, and a ring for inserting the fixing bolt is protruded in the recessed hole a locking seat is disposed on the body of the lock, and a protrusion is disposed on the body of the lock, and a cavity is disposed in the protrusion, the positioning ring is provided with a positioning groove, the diameter of the positioning groove is larger than the diameter of the chamber and is set in an arc a fixing hole is formed in the wall surface of the protrusion, the fixing hole is connected to the chamber, a fixing post is inserted into the fixing hole, and a bottom of the chamber is provided with a connection to the chain slot. a through hole, an inner wall surface of the chain slot of the lock body corresponding to the through hole a locking groove is disposed at a position; a compression spring is disposed in a cavity of the protrusion of the lock body; a lock seat is disposed in a cavity of the protrusion of the lock body, and the key is provided with a key The socket is provided with a receiving slot, the key socket is connected to the receiving slot, and a limiting slot is disposed on the wall surface of the receiving slot, and a wall is provided on the wall of the locking seat a guiding slot is formed in the end of the fixing column, and a positioning hole is further disposed on the wall surface of the locking core seat. A positioning steel ball is disposed in the positioning hole, and a positioning pin hole is further disposed on the wall surface of the locking core seat. The positioning pin is inserted into the positioning pin hole, and the bottom surface of the locking core seat is provided with a socket; a locking core is disposed in the receiving groove of the locking core seat, and a convex body is arranged at the bottom of the locking core The convex body is provided with a slot, and the arc has a curved slot on the wall surface. The arc slot is connected to the slot. The wall of the protrusion is further provided with a through hole and a fixing pin. The sleeve is disposed in the perforation, and all the slots are formed on the wall surface of the lock core, and a part of the limit post is disposed in the slot, Another portion of the post is disposed in the limiting slot of the lock core seat; a connecting seat is disposed below the lock core seat and disposed in the housing of the lock body, the connecting seat is provided with a through hole, An arc-shaped cutting surface is disposed on the inner wall surface of the connecting seat, and an arc-shaped through groove is formed on the wall surface of the connecting seat, and a socket is disposed at a bottom of the connecting seat, and a coil spring is disposed on the connecting seat and the lock core seat One end of the coil spring is inserted into the insertion hole of the lock core seat, and the other end of the coil spring is inserted into the insertion hole of the connection seat; a plug is inserted at the upper end thereof The insertion hole of the connecting seat is inserted into the insertion groove of the lock core, and the bottom end of the insertion rod extends through the through hole of the lock body, and the upper end of the insertion rod is provided with a convex column, the convex a pin hole is arranged on the column, the pin hole of the plug rod is inserted into the fixing pin disposed on the lock core, and the plug rod is integrated with the lock core; a chain is fixed at one end thereof In one end of the chain slot of the lock body, the other end of the chain is fastened by the plug rod to the other end of the chain slot of the lock body .