TW201932341A - Chain lock for conveniently locking up article to achieve best anti-theft effect - Google Patents

Abstract

This invention provides a chain lock mainly configured with a lock body. The lock body is configured with a first notch and a second notch. A compression spring is disposed in a chamber of the lock body. A lock core bracket is disposed in the chamber of the lock body. A lock core is inserted into the receiving slot of the lock core bracket. A connecting bracket is disposed under the lock core bracket and in the chamber of the lock body, and is abutted against the compression spring. The upper end of an insertion rod is penetrated in a through hole of the connecting bracket and inserted into the insertion slot of the lock core. The bottom end of the insertion rod is penetrated through the through hole of the lock body. A fixing sleeve is fitted on the lock core bracket and disposed in the fixing slot of the lock body. One end of a chain is fixed in the first notch of the lock body by a fixing pin, and the other end is buckled in the second notch of the lock body through the insertion rod. Thus, this invention may conveniently lock up an article and 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 first slot and a second slot, and a top slot of the first slot is provided with a positioning slot, the first slot a bottom surface is provided with a through hole, a fixing bolt is disposed in the through hole and the positioning slot, a bottom of the second cutting slot is provided with a insertion groove, and the lock body is provided with a chamber, and the bottom of the chamber is provided a through hole corresponding to the second slot, the through hole corresponding to the insertion slot, the upper portion of the chamber is provided with a fixing slot, the fixing slot is provided with a slot, and the inner ring is provided with a positioning a groove, the diameter of the positioning groove is larger than the diameter of the chamber and is formed in a circular arc shape, and an axially disposed limiting groove is disposed on the wall surface of the chamber; a compression spring is disposed in the chamber of the lock body a key holder is disposed in the housing of the lock body, and the key holder is provided with a key socket, and the key holder is provided with a receiving slot, and the key socket is connected to the receiving slot. a limiting groove is arranged on the wall surface of the receiving groove, and a groove is arranged on the outer wall surface of the locking core seat, One part of the limiting bead is disposed in the groove, and another part of the limiting bead is disposed in the limiting groove of the lock body, and a positioning hole is further disposed on the wall surface of the locking core seat, and a positioning steel ball is disposed The sleeve is disposed in the positioning hole, and a pin hole is further disposed on the wall surface of the lock core seat. A positioning pin is inserted into the pin hole, and a bottom hole is disposed on a bottom surface of the lock core seat; The bottom of the lock core is provided with a convex body, and the convex body is provided with a plugging groove. The convex body is provided with an arc-shaped vacant groove on the wall surface, and the curved vacant groove Connected to the insertion slot, the wall surface of the protrusion is further provided with a through hole, a fixing pin is disposed in the through hole, and an axial slot is formed on the wall surface of the lock core, and a part of the limit column is The other part of the limiting column is disposed in the limiting slot of the lock core seat; a connecting seat is disposed below the lock core seat and disposed on the body of the lock body Indoorly, the connecting seat is abutted against the compression spring, and the connecting seat is provided with a through hole for the convex body of the lock core, the connecting seat An arc-cut surface is provided on the inner wall surface of the hole, and the arc-cut surface is provided at one end of the fixing pin of the lock core, and an arc-shaped through groove is formed on the wall surface of the connecting seat, and the positioning pin of the lock core seat is set in The arc-shaped through slot is provided with a socket at the bottom of the connecting seat, a coil spring is disposed between the connecting seat and the lock core seat, and one end of the coil spring is inserted into the jack of the lock core seat The other end of the coil spring is inserted into the socket of the connecting seat; a plug rod has an upper end inserted through the through hole of the connecting seat and assembled with the lock core, the plug rod The bottom end of the insertion rod is inserted into the through hole of the lock body, and the upper end of the insertion rod is provided with a protrusion, and the protrusion is disposed in the insertion groove of the lock core, and the protrusion is provided with a pin hole The pin hole of the plug rod is inserted into the fixing pin of the lock core, and the plug rod is integrated with the lock core; a fixing sleeve is sleeved on the lock core seat and disposed on the pin a fixing hole is formed in the fixing groove of the lock body, the fixing sleeve is provided with a through hole for the core seat to extend, and a flange is protruded from the wall surface of the fixing sleeve, and the edge is embedded in the body of the lock body. Within; a chain, one end of which is fixed by a pin fixed to the first slot of all of the lock body, the other end of the chain by the Department of the insertion rod Zhi buckle disposed in a second of the slots of the lock body.

The chain lock of the present invention, wherein one end of the fixing bolt is provided with a tooth pattern, and the fixing bolt is fastened into the perforation of the lock body, and the fixing bolt is fixed in the perforation, thereby the chain One end is fixed in the first 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.

For the purpose of the present invention, the preferred embodiments of the invention are as follows:

An embodiment of the present invention, as shown in the second, third, fourth, and fifth figures, is mainly provided with a lock body 2, the lock body 2 is provided with a first slot 20 and a second slot 21, the first The top surface of the slot 20 is provided with a positioning slot 200. The bottom surface of the first slot 20 is provided with a through hole 201. A fixing bolt 22 is disposed in the through hole 201 and the positioning slot 200. One end portion is provided with a tooth pattern 220, and a bottom portion of the second cutting groove 21 is provided with a insertion groove 210. The lock body 2 is provided with a chamber 23, and the bottom of the chamber 23 is provided with a communication to the second cutting portion. The through hole 24 of the slot 21 corresponds to the insertion slot 210. The upper portion of the housing 23 is provided with a fixing slot 25, and the fixing slot 25 is provided with a slot 26, and the inner ring of the housing 23 The positioning groove 27 has a diameter larger than the diameter of the chamber 23 and is formed in a circular arc shape. The wall surface of the chamber 23 is provided with an axially disposed limiting groove 28; a compression spring 3, The lock core seat 4 is disposed in the chamber 23 of the lock body 2, and the lock core seat 4 is provided with a key jack 40, the lock core The housing 4 is provided with a receiving slot 41. The keyhole 40 is connected to the receiving slot 41. The limiting slot 42 is defined in the wall surface of the receiving slot 41. The wall of the locking core seat 4 is provided with a recess. The slot 43 and a portion of the limiting bead 44 are disposed in the recess 43 of the lock housing 4, and another portion of the limiting bead 44 is disposed in the limiting slot 28 of the lock body 2, the lock A positioning hole 45 is further disposed on the wall surface of the core seat 4, and a positioning steel ball 46 is disposed in the positioning hole 45. A pin hole 47 is further disposed on the wall surface of the core seat 4, and a positioning pin 48 is inserted into the wall. In the pin hole 47, a bottom surface of the lock core 4 is provided with a socket 49. A lock core 5 is disposed in the receiving groove 41 of the lock core seat 4. The bottom of the lock core 5 is provided with a convex body. A convex groove 50 is disposed in the convex body 50. The curved surface of the convex body 50 is provided with an arcuate notch 52. The arcuate notch 52 is connected to the insertion groove 51, and the wall surface of the convex body 50 A through hole 53 is further disposed, and a fixing pin 54 is disposed in the through hole 53. The wall surface of the lock core 5 is provided with a slot 55, and a portion of a limiting post 56 is disposed in the slot 55. Another portion of the limit post 56 is attached to The connecting seat 6 is disposed under the lock housing 4 and disposed in the housing 23 of the lock body 2, the connecting seat 6 is provided with a through hole 60. An arc-shaped cut surface 61 is disposed on the inner wall surface of the through hole 60 of the connecting seat 6. The arcuate through groove 62 is defined in the wall surface of the connecting seat 6. The bottom of the connecting base 6 is provided with a receiving hole 63, and a coil spring 64 is disposed thereon. Between the connecting seat 6 and the lock base 4, one end 640 of the coil spring 64 is inserted into the insertion hole 49 of the lock core seat 4, and the other end 641 of the coil spring 64 is inserted into the connecting seat 6. The insertion hole 7 is inserted into the through hole 60 of the connecting seat 6 and inserted into the insertion groove 51 of the lock core 5, and the bottom end of the insertion rod 7 is The through hole 24 of the lock body 2 is disposed. The upper end of the insertion rod 7 is provided with a protrusion 70. The protrusion 70 is provided with a pin hole 71. The pin hole 71 of the insertion rod 7 is provided for wearing. A fixing pin 54 is inserted into the locking pin 5; a fixing sleeve 8 is sleeved on the locking core seat 4 and disposed in the fixing groove 25 of the locking body 2, and the fixing sleeve 8 is provided with a through hole 80. A fixing edge 81 is protruded from the wall surface of the fixing sleeve 8 , and the edge 81 The first end 90 of the chain body 9 is fixed in the first slot 20 of the lock body 2, and the other end 91 of the chain 9 is disposed on the lock body 2 In the second slot 21, this is 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 seat 70 of the insertion rod 7 is placed in 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 49 of the lock core seat 4, The positioning pin 48 is inserted into the pin hole 47 of the lock core seat 4, and a part of the positioning pin 48 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 46 is disposed in the positioning hole 45 of the lock core seat 4, and a part of the positioning steel ball 46 is set in the connecting seat. The curved arc of the 6 is inserted into the groove 62, and the limiting bead 44 is set in the groove 43 of the lock core seat 4, which will be fixed. The sleeve 8 is disposed on the lock core seat 4, and the compression spring 3 is disposed in the chamber 23 of the lock body 2, and the components assembled with the lock core seat 4 are also disposed in the lock body 2 The lower end of the insertion rod 7 extends through the compression spring 3 and penetrates into the through hole 24 of the lock body 2, and a portion of the limit bead 44 is disposed in the limit groove of the lock body 2. In the 28, the connecting seat 6 is resisted on the compression spring 3, and the inserting edge 81 of the fixing sleeve 8 is embedded in the fitting groove 26 of the lock body 2, and the fixing sleeve 8 is fixed on the lock body 2, and The lock core 4 and its components are positioned in the chamber 23 of the lock body 2, and one end 90 of the chain 9 is placed in the first slot 20 of the lock body 2, and the fixing bolts 22 are sequentially arranged. When the perforation 201 of the lock body 2, the one end 90 of the chain 9 and the positioning slot 200 are inserted, the tooth 220 of the fixing bolt 22 is pressed into the through hole 201, so that the fixing bolt 22 does not escape from the through hole 201. One end 90 of the chain 9 is fixed in the first slot 20 of the lock body 2 by the fixing bolt 22, and the other end 91 of the chain 9 is disposed in the second slot 21 of the lock body 2, by The insertion rod 7 is inserted into the other end 91 of the chain 9 and the insertion groove 210, and the other end 91 of the chain 9 can be positioned in the second slot 21 of the lock body 2, so that the whole can be completed. Assembly.

When in use, please refer to the fifth to eighth figures, the chain 9 of the present invention is wound around the object to be locked, such as the bicycle frame or the wheel, and the other end 91 of the chain 9 is inserted into the lock. In the second slot 21 of the body 2, the other end 91 of the chain 9 is aligned with the insertion hole 210 and the through hole 24 of the lock body 2 (as shown in FIG. 5), and then the convex locking seat is 4 is pressed into the lock body 2, and the lock core seat 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, so that the compression spring 3 is elastically compressed. The lower end of the insertion rod 7 which is inserted into the through hole 24 of the lock body 2 is inserted into the other end 91 of the chain 9 and inserted into the insertion groove 210 of the lock body 2, and the lock seat 4 is inserted. When the pressure is pressed, the positioning steel ball 46 in the positioning hole 45 of the lock core seat 4 is moved downwards and is located in the positioning groove 27 of the lock body 2, and cannot be rotated due to the limitation of the limited seat bead 44 of the lock core seat 4. Therefore, 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 slot 62, and the positioning pin 48 is located in the curved through slot 62. Therefore, when the connecting seat 6 is rotated by the coil spring 64, the lock core 5 and the insertion rod 7 are not driven, and the connecting seat 6 is driven by the elastic return of the coil spring 64, and the curved through groove 62 is disengaged. The position of the positioning hole 45 corresponding to the lock base 4 is such that the outer wall surface of the connecting seat 6 abuts the positioning steel ball 46 disposed in the positioning hole 45 of the lock core seat 4, and the positioning steel ball 46 is pushed outward to position the steel ball 46. A part of the outer portion is externally inserted into the positioning groove 27 of the lock body 2 (as shown in FIG. 6), so that the locking action can be completed. The present invention positions the positioning position of the steel ball 46 and the insertion rod. The buckle of 7 can lock the other end 91 of the chain 9 firmly in the second slot 21 of the lock body 2 (as shown in the seventh and eighth figures), and the lock body 2 of the present invention has no pin hole outside. The thief can't know the internal locking structure from the appearance, so it can achieve the best anti-theft effect. When you want to unlock, you only need to insert the key into the lock seat 4 with the key (not shown). In the hole 40, the key is inserted into the lock core 5, and when the key 5 is rotated by the key, the lock core 5 is connected to the connecting seat 6 by the fixing pin 54. Rotating, when the connecting seat 6 is rotated, the connecting seat 6 drives the coil spring 64 to be elastically twisted, and the arcuate through groove 62 of the connecting seat 6 is correspondingly corresponding to the positioning hole 45 of the lock core seat 4, and is embedded in the lock. The positioning steel ball 46 in the positioning groove 27 of the main body 2 is no longer supported by the outer wall surface of the connecting seat 6, and is moved into the arcuate through groove 62 of the connecting seat 6 along the arc surface of the positioning groove 27. It is no longer embedded in the positioning groove 27 of the lock body 2, and the compression spring 3 disposed in the chamber 23 of the lock body 2 is elastically restored to push the connecting seat 6 and the lock core seat 4 upward (such as the fifth As shown in the figure, the upper portion of the lock core 4 protrudes out of the lock body 2, and the insertion rod 7 moves away from the lock base 4 to disengage from the insertion groove 210 of the lock body 2 and the other end 91 of the chain 9. The chain 9 can be taken out from the second slot 21 of the lock body 2, so that the tripping action can be completed. The invention is very convenient to use, can be used for locking 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.

1‧‧‧Chain lock

10‧‧‧Chain

11‧‧‧Locks

2‧‧‧Lock body

20‧‧‧First slot

200‧‧‧ positioning slot

201‧‧‧Perforation

21‧‧‧Second slot

210‧‧‧Insert trough

22‧‧‧Fixed bolt

220‧‧‧ teeth

23‧‧‧ Room

24‧‧‧through hole

25‧‧‧fixed slot

26‧‧‧Inlay

27‧‧‧ positioning slot

28‧‧‧Limited slot

3‧‧‧Compression spring

4‧‧‧Lock seat

40‧‧‧Key jack

41‧‧‧ accommodating slots

42‧‧‧Limited slot

43‧‧‧ Groove

44‧‧‧Limited beads

45‧‧‧Positioning holes

46‧‧‧ Positioning steel balls

47‧‧‧ pinhole

48‧‧‧Locating pin

49‧‧‧ 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‧‧‧Seat

71‧‧ ‧ pinhole

8‧‧‧ fixed set

80‧‧‧Perforation

81‧‧‧

9‧‧‧Chain

90‧‧‧ one end

91‧‧‧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. The sixth figure shows a schematic cross-sectional view of the lock when the lock is locked in the embodiment of the present invention. Figure 7 is a cross-sectional view showing another angle of the lock when the lock is locked in the embodiment of the present invention. The eighth figure is a schematic view showing the use of the embodiment of the present invention when locking.

Claims (1)

A chain lock includes: a lock body, the lock system has a first slot and a second slot, the top surface of the first slot is provided with a positioning slot, and the bottom surface of the first slot is a perforation, a fixing bolt is disposed in the perforation and the positioning slot, a bottom of the second slot is provided with a insertion slot, the lock body is provided with a chamber, and a bottom of the chamber is provided with a communication a through hole corresponding to the second slot, the through hole corresponding to the insertion slot, the upper portion of the chamber is provided with a fixing slot, the fixing slot is provided with a slot, and the receiving ring is provided with a positioning slot. The positioning groove has a diameter larger than the diameter of the chamber and is formed in a circular arc shape, and an axially disposed limiting groove is disposed on the wall surface of the chamber; a compression spring is disposed in the chamber of the lock body; The key holder is disposed in the housing of the lock body, and the key holder is provided with a key insertion hole. The key holder is provided with a receiving slot, and the key socket is connected to the receiving slot. a limiting groove is arranged on the wall surface of the groove, and a groove is arranged on the outer wall surface of the locking core seat, and a limit is arranged. A part of the limiting bead is disposed in the limiting groove of the lock body, and a positioning hole is further disposed on the wall surface of the lock core seat, and a positioning steel ball is disposed In the positioning hole, a pin hole is further disposed on the wall surface of the lock core seat, a positioning pin is inserted into the pin hole, and a bottom hole is disposed on a bottom surface of the lock core seat; The bottom of the lock core is provided with a convex body, and the convex body is provided with a plugging groove. The convex body is provided with an arc-shaped missing groove on the wall surface, and the curved missing groove is connected to the groove. The insertion slot has a through hole formed on the wall surface of the protrusion, a fixing pin is disposed in the through hole, and an axial slot is formed on the wall surface of the lock core, and a part of the limit column is fastened on the wall In the slot, another portion of the limiting 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, a connecting seat and abutting against the compression spring, the connecting seat is provided with a through hole for the convex body of the lock core, and the through hole of the connecting seat An arc-cut surface is provided on the wall surface, and the arc-cut surface is provided at one end of the fixing pin of the lock core, and an arc-shaped through groove is formed on the wall surface of the connecting seat, and the positioning pin of the lock core seat is disposed in the arc a socket is disposed in the bottom of the connecting seat, and a coil spring is disposed between the connecting seat and the lock core seat, and one end of the coil spring is inserted into the jack of the lock core seat, The other end of the coil spring is inserted into the socket of the connecting seat; a plug rod has an upper end inserted through the through hole of the connecting seat and assembled with the lock core, the bottom of the plug rod The end of the insertion rod is disposed in the through hole of the lock body, and the upper end of the insertion rod is provided with a protrusion, the protrusion is disposed in the insertion groove of the lock core, and the protrusion 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; a fixing sleeve is sleeved on the lock core seat and is disposed on the lock body In the fixing groove, the fixing sleeve is provided with a perforation for the opening of the lock core seat, and a flange is protruded from the wall surface of the fixing sleeve, and the edge is embedded in the groove of the lock body A chain, one end of which is fixed by a pin fixed to the first slot of all of the lock body, the other end of the chain by the Department of the insertion rod Zhi buckle disposed in a second of the slots of the lock body.