TWI673192B - Chain lock - Google Patents

Abstract

The invention is to provide a chain lock, which is mainly composed of a lock body, an inner body, a brake rod, a lock core and a lock head, wherein the lock body is provided with a buckle portion, the buckle There are two steel ball holes on the part. Each of the two steel ball holes is provided with a positioning steel ball. The inner system is set in the receiving groove of the lock body. The brake rod is set in the inner volume of the inner body. The lock core is set in the lock groove of the inner body and corresponds to the position of the key insertion hole of the lock body. A linkage block is arranged on the rotation of the lock core, and the linkage convex system of the linkage block The lock head is arranged in the groove of the brake rod, and the lock head is connected to the lock part of the lock body. The inner wall of the lock head is provided with a lock ring groove for the positioning steel ball to enter. The chain lock set of the present invention is set at both ends of a chain, and the butt lock of the lock body and the lock head can conveniently lock the articles in one position and achieve the best anti-theft effect.

Description

Chain lock

The invention relates to a chain lock, in particular to a person who can achieve the anti-theft effect of the best lock object.

Press, the general chain lock is mainly used to lock the article to a fixed object to prevent the thief from stealing the article at will, for example: locking a bicycle or a cart on a pillar, and the structure of the general chain lock 1, As shown in the first figure, the two ends of a chain 10 are connected with a lock 11 that can be locked with each other. The lock 11 is a pair lock or a padlock, which can prevent the locked items from being moved. To prevent theft of items: Of course, in the conventional chain lock 1, the lock 11 and the chain 10 are separated, and the lock 11 is easy to lose, and the lock structure of the general lock 11 is extremely simple, and a thief can easily use a tool. The lock 11 is unlocked or destroyed, so the anti-theft effect is not ideal.

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

The chain lock of the present invention includes: a lock body, the lock body is provided with an accommodating slot, and the first section of the lock body opposite the wall surface is provided with two first cut grooves connected to the accommodating slot, and the lock body A first rivet hole communicating with the accommodating groove is oppositely provided on a wall surface perpendicular to the first cut groove. A first rivet is penetrated in the first rivet hole, and a wall surface of the lock body is additionally provided. There is a key socket communicating with the accommodating slot, a lock part is provided at the upper part of the lock body, and a through hole communicating with the accommodating slot is provided on the lock part. There are two steel ball holes connected to the through hole. The outer edges of the steel ball holes are provided with positioning retaining edges. The two positioning steel balls are respectively set in the two ball holes and are held by the positioning retaining edges. An inner body is arranged in a receiving groove of the lock body. A second cutting groove is provided at the bottom of the inner body. A second receiving chamber is provided in the second cutting groove. The wall surface of the inner body is perpendicular to the receiving space. A second rivet hole communicating with the insertion chamber is provided at the position of the second slot, for the first rivet to be riveted, and a lock communicating with the insertion chamber is provided on the wall of the inner body. A heart groove, a lock groove is provided on the lock groove, a convex seat is provided on the upper part of the inner body, the convex seat is located in the through hole of the lock body, and the insertion chamber extends into the convex seat. The convex seat is oppositely provided with two through holes that communicate with the insertion chamber for the positioning steel ball to enter; a brake rod is installed in the insertion chamber of the inner body, and the bottom of the brake rod extends downward. An extension portion is provided with an inlay groove; a lock core is provided in the lock core groove of the inner body; a lock projection is provided on the lock core; the positioning protrusion system is provided on the inner body; The lock core is positioned in the limiting slot. A key hole is provided on one side of the lock core, and the lock core corresponds to the other side of the key hole. There is a swivel, and a linking block is arranged on the swivel of the lock core. One side of the linking block is provided with a positioning insert groove that cooperates with the swivel, and the other side of the linking block is provided with a linking convex body. The interlocking convex system is arranged in the recessed groove of the brake rod; a lock head is connected to the lock part of the lock body; the lock head is provided with an accommodation chamber, and the inner wall of the accommodation chamber is provided with a buckle A ring groove, two third cut grooves connected to the chamber are provided on the wall surface of the upper part of the lock head, and the third cut grooves are provided on the wall surface of the lock head and perpendicular to the third cut groove. A third rivet hole in the chamber, and a second rivet is penetrated in the third rivet hole.

According to the chain lock of the present invention, the first rivet hole oppositely disposed on the wall surface of the lock body perpendicular to the first slot is a first small rivet hole and a first large rivet hole. The second rivet hole oppositely disposed on the wall surface at a position perpendicular to the second cut groove is a second small rivet hole and a second large rivet hole. The first rivet is threaded through the first small rivet hole of the lock body. A rivet hole and the second small rivet hole of the inner body, and a first rivet fastener is set in the first of the lock body. A large rivet hole and the second large rivet hole of the inner body are sleeved on the end of the first rivet, so that the first rivet and the first rivet fastener are fastened to each other.

In the chain lock of the present invention, the third rivet hole oppositely disposed on the wall surface of the lock head perpendicular to the third cut groove is a third small rivet hole and a third large rivet hole, and the second The rivet is penetrated in the third small rivet hole, and a second rivet fastener is set in the third large rivet hole and sleeved on the end of the second rivet, so that the second rivet and The second rivet fasteners are fastened to each other.

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

1‧‧‧chain lock

10‧‧‧Chain

11‧‧‧ Lock

2‧‧‧Lock body

20‧‧‧ Receiving slot

21‧‧‧The first slot

22‧‧‧The first small rivet hole

23‧‧‧The first big rivet hole

24‧‧‧First Rivet

25‧‧‧First Rivet Fastener

26‧‧‧Key Jack

27‧‧‧Deduction department

270‧‧‧through hole

271‧‧‧Steel Ball Hole

272‧‧‧Positioning flange

28‧‧‧ positioning steel ball

3‧‧‧ inner body

30‧‧‧Second notch

31‧‧‧Insert into the capacity room

32‧‧‧Second Small Rivet Hole

33‧‧‧The second largest rivet hole

34‧‧‧ lock heart slot

340‧‧‧ limit slot

35‧‧‧ convex seat

350‧‧‧through hole

4‧‧‧brake stick

40‧‧‧ extension

41‧‧‧ Recessed

5‧‧‧ lock heart

50‧‧‧ positioning convex

51‧‧‧keyhole

52‧‧‧ swivel

53‧‧‧Linked block

54‧‧‧Positioning slot

55‧‧‧ Linked convex body

6‧‧‧ lock head

60‧‧‧Capacity Room

61‧‧‧Snap ring groove

62‧‧‧ Third cut

63‧‧‧The third small rivet hole

64‧‧‧ the third largest rivet hole

65‧‧‧Second Rivet

66‧‧‧Second Rivet Fastener

7‧‧‧chain

8‧‧‧ key

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

The second figure is an exploded perspective view of an embodiment of the present invention.

The third figure is a three-dimensional combined view of an embodiment of the present invention.

The fourth figure is a combined sectional view (a schematic diagram when unlocked) of an embodiment of the present invention.

The fifth figure is a schematic three-dimensional view when the embodiment of the present invention is locked.

The sixth diagram is a schematic sectional view of the embodiment of the present invention when locked.

Regarding the technical means adopted by the present invention to achieve the above-mentioned use purpose and effects, the preferred and feasible embodiments are listed, and the drawings are shown in detail as follows:

The embodiment of the present invention, as shown in the second figure, mainly includes: a lock body 2 which is provided with an accommodation groove 20 therein, and two communication surfaces are provided on the lower wall of the lock body 2 oppositely. A first small rivet is provided on the wall of the lock body 2 perpendicular to the first cut groove 21 in the first cut groove 21 of the accommodating groove 20. Nail hole 22 and a first large rivet hole 23, a first rivet 24 is inserted into the first small rivet hole 22, and a first rivet fastener 25 is inserted into the first large rivet hole 23 and It is sleeved on the end of the first rivet 24, and a key insertion hole 26 connected to the receiving groove 20 is provided on the wall surface of the lock body 2. A lock body 2 has a diameter smaller than the lock body. 2 is a fastening portion 27, and the fastening portion 27 is provided with a through hole 270 communicating with the receiving groove 20, and the wall surface of the fastening portion 27 is oppositely provided with two steel ball holes 271 communicating with the through hole 270. The outer edge of the steel ball hole 271 is provided with a positioning retaining edge 272. The two positioning steel balls 28 are respectively set in the two steel ball holes 271 and are held by the positioning retaining edge 272. An inner body 3 is provided on the lock. In the receiving groove 20 of the main body 2, a second cutting groove 30 is provided at the bottom of the inner body 3. A second receiving chamber 31 is provided in the second cutting groove 30. The wall surface of the inner body 3 is perpendicular to the second groove. A second small rivet hole 32 and a second large rivet hole 33 communicating with the insertion chamber 31 are opposite to the slot 30 for the first rivet 24 and the first rivet buckle 25. There is a lock groove 34 connected to the insertion chamber 31 on the wall surface of the inner body 3. The lock groove 34 is provided with a limiting groove 340. The upper portion of the inner body 3 is provided with a convex The seat 35 is located in the through hole 270 of the lock body 2, and the insertion chamber 31 extends into the projection 35. The protrusion 35 is oppositely provided with two communicating chambers. 31 and a through hole 350 for the positioning steel ball 28 to enter; a brake rod 4 is set in the insertion chamber 31 of the inner body 3, and an extension portion 40 extends downward from the bottom of the brake rod 4, the An extension groove 40 is provided on the extension portion 40; a lock core 5 is installed in the lock groove 34 of the inner body 3. The lock core 5 is provided with a positioning protrusion 50, and one side of the lock core 5 is provided. There is a keyhole 51, the lock core 5 is provided with a swivel body 52 on the other side corresponding to the keyhole 50, and a link block 53 is provided on the swivel body 52 of the lock core 5, and one side of the link block 53 is provided with There is a positioning insert groove 54 that cooperates with the rotating body 52. The other side of the linking block 53 is provided with a linking protrusion 55, and the linking protrusion 55 is set in the recessing groove 41 of the brake rod 4. Head 6, connected to the lock body On the fastening portion 27 of 2, a lock chamber 60 is provided in the lock head 6, and a lock ring groove 61 is provided near the bottom of the inner wall of the storage chamber 60. On the wall surface, there are two third cutouts 62 connected to the accommodation chamber 60. On the wall surface of the lock head 6, a third cutout 62 connected to the accommodation chamber 60 is provided. A small rivet hole 63 and a third large rivet hole 64, a second rivet 65 is inserted through the third small rivet hole 63, and a second rivet fastener 66 is inserted into the third large rivet hole 64. It is sleeved on the end of the second rivet 65, so it is a chain lock structure.

When assembling, please refer to the second to fourth figures. First, set the brake rod 4 in the insertion chamber 31 of the inner body 3, and set the linkage block 53 on the pivoting body 52 of the lock to make the lock. The turning body 52 of the heart 5 is positioned in the positioning inserting groove 54 of the linking block 53. The assembled linking block 53 and the lock core 5 are placed in the locking groove 34 of the inner body 3 together, and the lock core 5 is positioned. The positioning protrusion 50 is disposed in the limiting groove 340 of the inner body 3, and the interlocking protrusion 55 of the interlocking block 53 is disposed in the embedding groove 41 of the brake rod 4, and the interlocking protrusion 55 of the interlocking block 53 is provided. The brake rod 4 is positioned in the inner body 3, and two positioning steel balls 28 are respectively set into the two steel ball holes 271 from the through holes 270 of the lock body 2 and the two positioning steel balls 28 are set by the outer edges of the steel ball holes 271. The positioning retaining edge 272 is held without falling out of the steel ball hole 271, and then the inner body 3 is set in the accommodation groove 20 of the lock body 2 and the convex seat 35 of the inner body 3 is set in the lock body. 2 through holes 270, and the two through holes 350 on the projection 35 correspond to the positions of the two steel ball holes 271 of the lock body 2 for the two positioning steel balls 28 to be displaceable into the two through holes 350, and the lock core 5 Key The hole 50 corresponds to the key insertion hole 26 of the lock body 2, and the second cut groove 30 of the inner body 3 corresponds to the first cut groove 21 of the lock body 2, and the second small rivet hole 32 of the inner body 3 corresponds to The first small rivet hole 22 of the lock body 2 and the second large rivet hole 33 of the inner body 3 correspond to the first large rivet hole 23 of the lock body 2. One end of a chain 7 is set in the lock body 2 and the inner body. In the first cutting groove 21 and the second cutting groove 30 of 3, the first rivet fastener 25 is set in the first large rivet hole 23 of the lock body 2 and the second large rivet hole 33 of the inner body 3, and then The first rivet 24 is inserted into one end of the first small rivet hole 22, the second small rivet hole 32, and the chain 7 of the lock body 2. The end of the first rivet 24 is forced into the first In the rivet fastener 25, one end of the chain 7 is fixed to the lock body 2 and the inner body 3 through the first rivet 24 and the first rivet fastener 25, and the other end of the chain 7 is set in the lock head 6 In the third slot 62, the second rivet fastener 66 is set in the third large rivet hole 64 of the lock head 6, and the second rivet 65 is inserted into the third small rivet hole of the lock head 6. 63 and the other end of the chain 7, the end of the second rivet 65 is forced into the second rivet fastener 66, and the other end of the chain 7 is fixed to the second rivet 65 and the second rivet fastener 66 On the lock head 6, the whole assembly can be completed.

During use, please refer to the fifth to sixth figures, and thread the chain 7 of the present invention on the object to be locked, such as a bicycle frame or wheel and a fixing post or fixing frame, and then place one end of the chain 7 The locking portion 27 of the lock body 2 is inserted into the container 60 of the lock head 6 at the other end of the chain 7, and the positioning steel ball 28 on the lock body 2 corresponds to the position of the lock ring groove 61 of the lock head 6, and then The key 8 inserted in the key socket 26 of the lock body 2 is rotated, and the rotation of the key 8 causes the rotation body 52 of the lock core 5 to rotate, and the rotation body 52 drives the linkage block 53 to rotate upward. The linkage block 53 is embedded in The interlocking protrusion 55 in the groove 51 of the brake rod 4 drives the brake rod 4 to move upward, and the upper section of the brake rod 4 moves upward. The two positioning steel balls 28 located in the through hole 350 of the inner body 3 are moved outward. A part of the two positioning steel balls 28 is pushed out of the outer wall surface of the fastening portion 27 of the lock body 2 and embedded in the fastening ring groove 61 of the locking head 6. The two positioning steel balls 28 are subjected to the brake rod 4. It cannot be retracted into the lock body 2 due to the limitation. In this way, by positioning the steel ball 28 into the lock ring groove 61 of the lock head 6, it can be completed. The locking action of the lock; when you want to release the lock, please refer to the third and fourth figures, you only need to turn the key 8 inserted in the lock body 2 in the reverse direction, and it is driven by the turning body 52 of the lock core 5. The interlocking protrusion 55 of the interlocking block 53 rotates down to the original position, and the interlocking protrusion 55 drives the brake rod 4 to move downward. The upper section of the brake rod 4 moves downward and no longer supports the positioning steel ball 28, and the positioning steel ball 28 can Move into the through hole 350 of the inner body 3, so that the positioning steel ball 28 is separated from the fastening ring groove 61 of the lock head 6 and retracted inside the lock portion 27 of the lock body 2, then the lock of the lock body 2 can be The connecting portion 27 is removed from the inside of the locking head 6 so that the unlocking action can be completed. The present invention is very convenient in use and can be used for positioning the locking of any item, and has an excellent anti-theft effect.

In summary, the present invention has indeed achieved the intended purpose and effect of use, and is more ideal and practical than the conventional one. However, the above embodiments are only specific descriptions of the preferred embodiments of the present invention. This embodiment is not intended to limit the scope of patent application of the present invention. For example, all other equivalent changes and modifications made without departing from the technical means disclosed by the invention should be included in the scope of patent application covered by the present invention.

Claims (3)

A chain lock includes: a lock body, the lock body is provided with an accommodating groove, and a first cut groove communicating with the accommodating groove is provided on a wall surface of the lower section of the lock body, and a wall surface of the lock body A first rivet hole communicating with the accommodating groove is arranged at a position perpendicular to the first cutting groove, a first rivet is penetrated in the first rivet hole, and a connection is provided on the wall surface of the lock body. A key socket is connected to the receiving groove. A locking portion is provided on the upper part of the lock body. The locking portion is provided with a through hole communicating with the receiving groove. The wall surface of the locking portion is oppositely provided. Two steel ball holes communicated with the through hole, the outer edge of the steel ball hole is provided with positioning retaining edges, and the two positioning steel balls are respectively inserted into the two steel ball holes and are held by the positioning retaining edges; an inner body is provided with In the receiving groove of the lock body, a second cutting groove is provided at the bottom of the inner body, and a second receiving chamber is provided in the second cutting groove. The wall surface of the inner body is perpendicular to the second cutting groove. A second rivet hole is provided opposite to the insertion chamber for the first riveting. Through the riveting, the inner surface of the inner body is further provided with a lock groove that communicates with the insertion chamber. The lock groove is provided with a limiting groove. The upper portion of the inner body is provided with a convex seat. The convex seat It is located in the through hole of the lock body, and the insertion chamber extends into the projection. The projection is oppositely provided with two through holes that communicate with the insertion chamber for the positioning steel ball to enter. The rod is installed in the inserting chamber of the inner body, and the bottom of the brake rod extends downward with an extension, and the extension is provided with an embedded groove; a lock core is provided in the lock core of the inner body; In the slot, a positioning convex body is provided on the lock core, and the positioning convex system is provided in the limiting groove of the inner body to locate the lock core. A key hole is provided on one side of the lock core, and the lock core corresponds to the The other side of the keyhole is provided with a swivel, and a linking block is provided on the swivel of the lock core. One side of the linking block is provided with a positioning insert groove that cooperates with the swivel, and the other of the linking block is There is a linkage protrusion on the side, and the linkage protrusion system is set in the recess of the brake rod; a lock head is connected to the lock book. On the fastening part of the body, the lock head is provided with an accommodation chamber, and the inner wall of the accommodation chamber is provided with a fastening ring groove. The upper wall surface of the lock head is oppositely provided with a third cutting groove connected to the accommodation chamber. A third rivet hole communicating with the chamber is provided on a wall surface of the lock head perpendicular to the third cut groove, and a second rivet is penetrated in the third rivet hole. The chain lock according to item 1 of the scope of patent application, wherein the first rivet hole opposite to the position of the wall surface of the lock body perpendicular to the first slot is a first small rivet hole and a first large rivet hole. A rivet hole, a second rivet hole opposite to a position perpendicular to the second cut groove on the wall surface of the inner body is a second small rivet hole and a second large rivet hole, and the first rivet is penetrated through the The first small rivet hole of the lock body and the second small rivet hole of the inner body, and a first rivet fastener is set in the first large rivet hole of the lock body and the first large rivet hole of the inner body. The two large rivet holes are sleeved on the ends of the first rivet, so that the first rivet and the first rivet fastener are fastened to each other. The chain lock according to item 1 of the scope of the patent application, wherein the third rivet hole opposite to the third vertical slot on the wall surface of the lock head is a third small rivet hole and a third A large rivet hole, the second rivet is penetrated in the third small rivet hole, and a second rivet fastener is set in the third large rivet hole and sleeved on the end of the second rivet So that the second rivet and the second rivet fastener are fastened to each other.