CN108331466A - Chain lock - Google Patents

Abstract

The invention provides a chain lock, which is mainly provided with a lock body, wherein a chain slot is arranged in the lock body, a compression spring is arranged in a containing chamber of a convex seat of the lock body, a lock cylinder seat is also arranged in the containing chamber of the convex seat of the lock body, a lock cylinder is arranged in a containing groove of the lock cylinder seat, a connecting seat is arranged below the lock cylinder seat and is arranged in the containing chamber of the lock body, the connecting seat is supported on the compression spring, the upper end of an inserting and catching rod is arranged in the through hole of the connecting seat in a penetrating way and inserted into the inserting and inserting groove of the lock core, the bottom end of the inserting rod extends into the through hole of the lock body, one end of a chain is fixedly arranged in one end of the chain slot of the lock body by the fixing bolt, the other end of the chain is buckled in the other end of the chain slot of the lock body by the inserting and catching rod, so that articles can be conveniently buckled and the optimal anti-theft effect can be achieved.

Description

chain lock

technical field

The invention relates to a chain lock, in particular to an object that can be conveniently locked and can achieve the best anti-theft effect.

Background technique

A general chain lock is mainly used to lock articles on a fixed object, for example: a bicycle is locked on a post, and the structure of a general chain lock 1, as shown in Figure 1, is composed of two chains 10 There are locks 11 that can be interlocked together at the ends, and the locks 11 are matching locks or padlocks, mainly to prevent the locked items from being moved to prevent the items from being stolen: however, the existing chain lock 1 , its lockset 11 and chain 10 are separable, its lockset 11 is lost easily, and the buckle structure of lockset 11 is very simple, the thief is easy to get final product buckle or destroy lockset 11 with tool, so anti-theft effect is not ideal.

Contents of the invention

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

Chain lock of the present invention comprises:

A lock body, the lock body is provided with a chain slot, the top surface of the lock body is provided with a first perforation connected to the chain slot, and the bottom surface of the lock body is provided with a second perforation at a position corresponding to the first perforation , a fixing bolt is passed through the first through hole and the chain slot and penetrates into the second through hole, one end of the fixing bolt is provided with a ring groove, and a positioning sleeve is inserted into the second part of the lock body. The positioning sleeve is provided with a concave hole, and the concave hole is provided with a flange for being embedded in the ring groove of the fixed bolt. The lock body is provided with a A convex seat, the convex seat is provided with a chamber, the inner ring of the chamber is provided with a positioning groove, the diameter of the positioning groove is larger than the diameter of the chamber and is arc-shaped, the wall of the convex seat is provided with a fixing hole, The fixing hole is connected to the chamber, and a fixing column is penetrated into the fixing hole. The bottom of the chamber is provided with a through hole leading to the chain slot, and the inner wall of the chain slot of the lock body corresponds to the A slot is provided at the position of the through hole;

A compression spring is arranged in the chamber of the boss of the lock body;

A lock core seat is located in the housing of the convex seat of the lock body, the lock core seat is provided with a key socket, and the lock core seat is provided with an accommodating groove, the key socket is connected to the accommodating groove, The wall surface of the accommodating groove is provided with a limit groove, the wall surface of the lock core seat is provided with a guide groove for the end of the fixing column to be set in, the wall surface of the lock core seat is also provided with a positioning hole, and a positioning steel ball Set in the positioning hole, the wall of the lock core base is provided with a positioning pin hole, a positioning pin is inserted in the positioning pin hole, and the bottom surface of the lock core base is provided with a socket;

A lock core is set in the accommodating groove of the lock core seat, a convex body is provided at the bottom of the lock core, an insertion slot is provided in the convex body, and an arc-shaped slot is provided on the wall surface of the convex body. The arc-shaped slot communicates with the insertion slot, and a perforation is provided on the wall of the convex body, and a fixing pin is inserted in the perforation. In the slot, another part of the limiting column is arranged in the limiting groove of the lock core seat;

A connecting seat is arranged under the lock core seat and in the chamber of the lock body, the connecting seat is provided with a perforation, the inner wall of the connecting seat is provided with an arc section, and the wall of the connecting seat is provided There is an arc-shaped slot, the bottom of the connection seat is provided with a socket, a coil spring is arranged between the connection seat and the lock core seat, one end of the coil spring is inserted into the socket of the lock core seat, the The other end of the coil spring is inserted into the socket of the connecting seat;

A plug rod, the upper end of which is passed through the through hole of the connecting seat and inserted into the insertion groove of the lock core, and the bottom end of the plug rod is passed through the through hole of the lock body. The upper end of the rod is provided with a protruding post, and the protruding post is provided with a pin hole. The pin hole of the plug rod is used for inserting the fixed pin pierced through the lock core, and the plug rod and the lock core are combined into one ;

A chain, one end of which is fixed in one end of the chain slot of the lock body, and the other end of the chain is fastened in the other end of the chain slot of the lock body by the plunger rod.

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

Description of drawings

Shown in Fig. 1 is the use schematic diagram of existing chain lock.

Figure 2 is a three-dimensional assembled view of the embodiment of the present invention.

Fig. 3 is a three-dimensional exploded view of the lockset of the embodiment of the present invention.

Fig. 4 is a three-dimensional exploded view of the chain and the lockset according to the embodiment of the present invention.

Figure 5 is a combined sectional view of the lockset of the embodiment of the present invention.

FIG. 6 is another schematic cross-sectional view of the lockset according to the embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of the lock according to the embodiment of the present invention when it is locked.

FIG. 8 is a schematic view of the embodiment of the present invention when it is locked.

Explanation of reference signs: 1 chain lock; 10 chain; 11 lock; 2 lock body; 20 chain slot; 21 first perforation; 22 second perforation; 23 fixed bolt; 230 ring groove; ; 241 flange; 25 convex seat; 250 chamber; 251 positioning slot; 252 fixing hole; 26 fixing column; 27 through hole; Set groove; 42 limit groove; 43 guide groove; 44 positioning hole; 45 positioning steel ball; 46 positioning pin hole; 47 positioning pin; 48 jack; 5 lock core; 50 convex body; Slot; 53 perforation; 54 fixed pin; 55 slotting; 56 limit post; 6 connection seat; 60 perforation; 7 plug rods; 70 bosses; 71 pin holes; 8 chains; 80 one end; 81 the other end.

Detailed ways

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

Embodiments of the present invention, please refer to Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, mainly be provided with a lock body 2, this lock body 2 is provided with a chain slot 20, and the top surface of this lock body 2 is provided with a communication In the first through hole 21 of the chain slot 20, the bottom surface of the lock body 2 is provided with a second through hole 22 corresponding to the position of the first through hole 21, and a fixing bolt 23 is passed through the first through hole 21 and the chain insertion hole. The slot 20 is inserted into the second through hole 22, an annular groove 230 is provided on one end of the fixing bolt 23, and a positioning sleeve 24 is set in the second through hole 22 of the lock body 2 and is sleeved on the fixing bolt 23. On one end of the bolt 23, the positioning sleeve 24 is provided with a concave hole 240, and the concave hole 240 is provided with a flange 241 for being embedded in the ring groove 230 of the fixed bolt 23. The lock body 2 is provided with a The convex seat 25 is provided with a chamber 250 inside the convex seat 25. The inner ring of the chamber 250 is provided with a positioning groove 251. The diameter of the positioning groove 251 is larger than the diameter of the chamber 250 and is arc-shaped. 25 is provided with a fixing hole 252 on the wall, the fixing hole 252 is connected to the chamber 250, a fixing post 26 is penetrated into the fixing hole 252, and the bottom of the chamber 250 is provided with a chain slot 20 connected to Through hole 27, the inner wall surface of the chain slot 20 of the lock body 2 is provided with an insertion groove 28 corresponding to the position of the through hole 27; a compression spring 3 is located in the chamber 250 of the boss 25 of the lock body 2 Inside; a lock core seat 4, located in the chamber 250 of the convex seat 25 of the lock body 2, the lock core seat 4 is provided with a key socket 40, and the lock core seat 4 is provided with an accommodating groove 41, The key insertion hole 40 communicates with the accommodation groove 41, a limiting groove 42 is provided on the wall surface of the accommodation groove 41, and a guide groove for the end of the fixing column 26 is provided on the wall surface of the lock core seat 4. 43, the wall of the lock core seat 4 is additionally provided with a positioning hole 44, a positioning steel ball 45 is set in the positioning hole 44, and the wall surface of the lock core seat 4 is additionally provided with a positioning pin hole 46, a positioning pin 47 Inserted in the positioning pin hole 46, the bottom surface of the lock core seat 4 is provided with a socket 48; a lock core 5 is set in the accommodation groove 41 of the lock core seat 4, and the bottom of the lock core seat 5 is provided There is a protruding body 50, which is provided with an insertion slot 51. The wall surface of the protruding body 50 is provided with an arc-shaped slot 52, and the arc-shaped slot 52 communicates with the insertion slot 51. The protruding body 50 The wall surface of the lock core 5 is provided with a through hole 53, and a fixed pin 54 is inserted in the through hole 53. The wall surface of the lock core 5 is provided with a cutout 55, and a part of a limiting post 56 is set in the cutout 55. The other part of the limiting column 56 is located in the limiting groove 42 of the lock core seat 4; a connecting seat 6 is located under the lock core seat 4 and is located in the chamber 250 of the lock body 2, the The connecting seat 6 is provided with a perforation 60, the inner wall surface of the perforated hole 60 of the connecting seat 6 is provided with an arc cut surface 61, the wall surface of the connecting seat 6 is provided with an arc-shaped through groove 62, and the bottom of the connecting seat 6 is provided with a socket 63 , a coil spring 64 is located between the connecting seat 6 and the lock core seat 4 Between, one end 640 of this coil spring 64 is inserted in the jack 48 of this lock core seat 4, and the other end 641 of this coil spring 64 is inserted in the jack 63 of this connecting seat 6; , the upper end of which is passed through 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 extended through the through hole 27 of the lock body 2, The upper end of the insertion rod 7 is provided with a boss 70, and the protrusion 70 is provided with a pin hole 71, and the pin hole 71 of the insertion rod 7 is used for inserting the fixed pin 54 which is arranged on the lock core 5; Chain 8, one end 80 of which 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 located in the other end of the chain slot 20 of the lock body 2, so that is A chain lock structure.

When assembling, please refer to Figures 3 to 5, first insert the plunger rod 7 through the through hole 60 of the connecting seat 6, and set the protrusion 70 of the plunger rod 7 into the insertion groove 51 of the lock core 5 Inside, the fixed pin 54 is inserted into the through hole 53 of the lock core 5 and the pin hole 71 of the plug rod 7, the lock core 5 and the plug rod 7 are assembled together, and then the coil spring 64 is sleeved on the connecting seat 6 Insert the other end 641 of the coil spring 64 into the socket 63 of the connecting seat 6, set the limit column 56 into the slot 55 of the lock core 5, and then set the lock core 5 into the lock core seat 4, a part of the limit post 56 is set in the limit groove 42 of the lock core seat 4, and one end of the coil spring 64 is inserted in 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 arc-shaped groove 62 of the connecting seat 6 and the arc-shaped slot 52 of the lock core 5, and the lock core 5. The connecting seat 6 and the inserting rod 7 are integrated with the lock core seat 4, and the positioning steel ball 45 is set in the positioning hole 44 of the lock core seat 4, and a part of the positioning steel ball 45 is also set in the connecting seat 6 through the arc-shaped groove 62, and the compression spring 3 is set in the chamber 250 of the lock body 2, and then the above-mentioned components combined with the lock core seat 4 are set in the chamber of the lock body 2. In the chamber 250, the lower end of the plunger rod 7 is inserted into the compression spring 3 and inserted into the through hole 27 of the lock body 2, and then the fixing post 26 is inserted into the fixing hole 252 of the convex seat 25 to make the fixing The inner end of the column 26 is set in the guide groove 43 of the lock core seat 4, and the lock core seat 4 and its assembled components are positioned in the chamber 250 of the lock body 2, while the connecting seat 6 is held against the On the compression spring 3, in addition an end 80 of the chain 8 is set in an end of the chain slot 20 of the lock body 2, then the fixed bolt 23 is penetrated into the first perforation 21 of the lock body 2, an end 80 of the chain 8 and In the second perforation 22, the positioning sleeve 24 is set in the second perforation 22, so that the flange 241 of the positioning sleeve 24 is embedded in the ring groove 230 of the fixing bolt 23, so that the fixing bolt 23 will not pass through the first through hole. 21, the one end 80 of the chain 8 is fixed in the chain slot 20 of the lock body 2 by virtue of the assembly of the fixing bolt 23 and the positioning sleeve 24, and the other end 81 of the chain 8 is arranged in the lock body 2 In the other end of the chain slot 20, the other end 81 of the chain 8 and the insertion groove 28 can be inserted downwards by means of the insertion rod 7, and the other end 81 of the chain 8 can be positioned on the chain insertion of the lock body 2. In the slot 20, in this way, the overall assembly can be completed.

When in use, please refer to Figures 5 to 8, thread the chain 8 of the present invention around the object to be locked, such as the frame or wheel of a bicycle, and then insert the other end 81 of the chain 8 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 hole 28 and the through hole 27 of the lock body 2 (as shown in Figure 5), and then the outwardly protruding lock core seat 4 is The convex seat 25 of the lock body 2 is pressed in, and the lock core seat 4 drives the lock core 5, the coil spring 64, the connecting seat 6 and the plug rod 7 to move down, and presses the compression spring 3 so that the compression spring 3 is In the elastic compression state, the lower end of the insertion rod 7 which is passed through 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 and the insertion groove 28 of the lock body 2 Inside, when the lock core seat 4 is pressed down, the positioning steel ball 45 in the positioning hole 44 of the lock core seat 4 will move down thereupon, and be located in the positioning groove 251 of the lock body 2, because the lock core seat 4 is supported by the fixed column 26 can not be rotated, so when the coil spring 64 is elastically restored, its other end 641 will drive the connecting seat 6 to rotate, and because the connecting seat 6 is provided with an arc-shaped groove 62, the positioning pin 47 is located in this arc-shaped thread. In the groove 62, when the connecting seat 6 is rotated by the coil spring 64, the lock core 5 and the inserting rod 7 will not be driven, and the connecting seat 6 is driven by the elastic recovery of the coil spring 64, and its arc passes through the groove. 62 then breaks away from the position of the positioning hole 44 corresponding to the lock core seat 4, so that the outer wall surface of the connecting seat 6 holds the positioning steel ball 45 located in the positioning hole 44 of the lock core seat 4, and pushes the positioning steel ball 45 outward A part of the positioning steel ball 45 then moves outwards and is embedded in the positioning groove 251 in the boss 25 of the lock body 2 (as shown in Figure 6), so that the locking action can be completed. The present invention relies on the fixing bolt 23 and the positioning The sleeve 24 fixes one end 80 of the chain 8 in the chain slot 20 of the lock body 2, and the other end 81 of the chain 8 can be firmly fixed by virtue of the embedded positioning of the positioning steel ball 45 and the buckle of the insertion rod 7. The lock is locked in the chain slot 20 of the lock body 2 (as shown in Figures 7 and 8). With the lock structure of the present invention, thieves cannot know the internal lock structure from the appearance, so the best anti-theft effect can be achieved. ; When desiring to unbuckle, only need to be inserted in the key socket 40 of lock core seat 4 with key (not shown in the figure), make key deep in the lock core 5, when driving lock core 5 to rotate with key, lock core 5 and rely on the fixed pin 54 to move the connecting seat 6 to rotate. When the connecting seat 6 rotates, the connecting seat 6 drives the coil spring 64 to be in an elastic torsion state. 4 corresponds to the positioning hole 44, and the positioning steel ball 45 embedded in the positioning groove 251 of the lock body 2 is no longer supported by the outer wall surface of the connecting seat 6, so it can be pushed inward along the arc surface of the positioning groove 251 To the arc-shaped slot 62 of the connecting seat 6, it is no longer embedded in the positioning groove 251 of the lock body 2, while the compression spring 3 located in the chamber 250 of the lock body 2 is elastically restored to hold the connecting seat 6 And the lock core seat 4 is pushed up (as shown in Figure 5), so that the upper part of the lock core seat 4 protrudes out of the lockset Outside the body 2, its insertion rod 7 moves up with the lock core seat 4 and breaks away from the insertion slot 28 of the lock body 2 and the other end 80 of the chain 8, and the chain 8 can be taken out from the chain slot 20 of the lock body 2 In this way, the unlocking action can be completed. The present invention is very convenient in use, can be used for locking and positioning any article, and has excellent anti-theft effect.

The above description is only illustrative of the present invention, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims, but All will fall within the protection scope of the present invention.

Claims (1)

1. A chain lock, characterized in that it comprises: A lock body, the lock body is provided with a chain slot, the top surface of the lock body is provided with a first perforation connected to the chain slot, and the bottom surface of the lock body is provided with a second perforation at a position corresponding to the first perforation , a fixing bolt is passed through the first through hole and the chain slot and penetrates into the second through hole, one end of the fixing bolt is provided with a ring groove, and a positioning sleeve is inserted into the second part of the lock body. The positioning sleeve is provided with a concave hole, and the concave hole is provided with a flange for being embedded in the ring groove of the fixed bolt. The lock body is provided with a The convex seat is provided with a chamber, and the inner ring of the chamber is provided with a positioning groove. The diameter of the positioning groove is larger than the diameter of the chamber and is arc-shaped. The wall of the convex seat is provided with a fixing hole. The fixing hole is connected to the chamber, and a fixing column is penetrated into the fixing hole. The bottom of the chamber is provided with a through hole connected to the chain slot, and the inner wall of the chain slot of the lock body corresponds to the through hole. There is an insertion slot at the position of the hole; A compression spring is arranged in the chamber of the boss of the lock body; A lock core seat is located in the housing of the convex seat of the lock body, the lock core seat is provided with a key socket, and the lock core seat is provided with an accommodating groove, the key socket is connected to the accommodating groove, The wall surface of the accommodating groove is provided with a limit groove, the wall surface of the lock core seat is provided with a guide groove for the end of the fixing column to be set in, the wall surface of the lock core seat is also provided with a positioning hole, and a positioning steel ball Set in the positioning hole, the wall of the lock core base is provided with a positioning pin hole, a positioning pin is inserted in the positioning pin hole, and the bottom surface of the lock core base is provided with a socket; A lock core is set in the accommodating groove of the lock core seat, a convex body is provided at the bottom of the lock core, an insertion slot is provided in the convex body, and an arc-shaped slot is provided on the wall surface of the convex body. The arc-shaped slot communicates with the insertion slot, and a perforation is provided on the wall of the convex body, and a fixing pin is inserted in the perforation. In the slot, another part of the limiting column is arranged in the limiting groove of the lock core seat; A connecting seat is arranged under the lock core seat and in the chamber of the lock body, the connecting seat is provided with a perforation, the inner wall of the connecting seat is provided with an arc section, and the wall of the connecting seat is provided There is an arc-shaped slot, the bottom of the connection seat is provided with a socket, a coil spring is arranged between the connection seat and the lock core seat, one end of the coil spring is inserted into the socket of the lock core seat, the The other end of the coil spring is inserted into the socket of the connecting seat; A plug rod, the upper end of which is passed through the through hole of the connecting seat and inserted into the insertion groove of the lock core, the bottom end of the plug rod extends through the through hole of the lock body, the plug rod A protruding post is provided at the upper end of the protruding post, and a pin hole is provided on the protruding post, and the pin hole of the plug rod is used for inserting the fixed pin pierced through the lock core, and the plug rod and the lock core are combined into one; A chain, one end of which is fixed in one end of the chain slot of the lock body, and the other end of the chain is fastened in the other end of the chain slot of the lock body by the plunger rod.