CN111502435B

CN111502435B - Chain lock

Info

Publication number: CN111502435B
Application number: CN202010117373.2A
Authority: CN
Inventors: 林郁宾
Original assignee: Rerlly Industry Co ltd
Current assignee: Rerlly Industry Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2021-02-26
Anticipated expiration: 2040-02-25
Also published as: CN111502435A

Abstract

The invention provides a chain lock, which is provided with an upper body, a lower body, a buckling seat, a lower fixed seat, an insertion rod, a compression spring, a lock core, a rotating body, a torsion spring, a lock rod, an upper fixed seat and a chain, wherein the upper body and the lower body are mutually buckled and pivoted, the buckling seat is arranged in the lower body, the lower fixed seat is arranged below the lower body, the lock core, the rotating body and the lock rod are mutually assembled, the torsion spring is arranged between the lock core and the rotating body, the lock core, the rotating body, the torsion spring and the lock rod are jointly arranged in the insertion rod, the compression spring is sleeved on the insertion rod, the insertion rod and the compression spring are jointly arranged in the upper body, the upper fixed seat is arranged above the upper body, one end of the chain is fixed in a fixed slot of the upper body through the insertion rod, the other end of the chain is inserted in a movable slot of the lower body, therefore, the locking action can be completed without using a key, when unlocking, the unlocking action can be completed only by rotating the lock core by the key, so that the lock catch is more convenient.

Description

Chain lock

Technical Field

The invention relates to a chain lock, in particular to a chain lock which can complete the action of locking a lock catch without using a key, can complete the unlocking action only by rotating a lock core by using the key during unlocking, and can randomly adjust the lock catch angle of a chain.

Background

A chain lock is mainly used to lock an article to a fixed object, such as: the bicycle is locked on a column, and in the traditional chain lock structure, two ends of a chain are connected with a lockset which can be mutually locked together, and the lockset is a combination lock or a padlock and mainly ensures that locked articles cannot be moved to prevent the articles from being stolen: however, in the conventional chain lock, the lock and the chain are separated, and the lock is easy to lose, so that the chain lock structure in which the lock and one end of the chain are fastened together is provided, as shown in fig. 1 and 2, a lock body 10 is mainly provided, the lock body 10 is provided with a first slot 100 and a second slot 101, a compression spring 11 and a lock core 12 are provided in the lock body 10, a detent rod 13 is provided below the lock core 12, a bottom end of the detent rod 13 is capable of penetrating into the second slot 101 of the lock body 10, one end of a chain 14 is fixed in the first slot 100 of the lock body 10 by a fixing bolt, the other end of the chain 14 is inserted and positioned by the detent rod 13, the detent rod 13 is inserted and positioned in the second slot 101 of the lock body 10 for locking, so as to facilitate the locking of an article, and achieve the anti-theft effect, however, although the existing chain lock can prevent the chain lock body 10 and the chain 14 from being separated and lost, however, the opening positions of the first slot 100 and the second slot 101 on the lock body 10 are fixed (disposed in opposite directions) and cannot be adjusted, so that it is not easy to lock the chain 14 when the space is limited during locking, and the key is required to rotate the lock core 12 during unlocking and locking, which is still insufficient in convenience of use.

Disclosure of Invention

The invention mainly aims to provide a chain lock, which can effectively overcome the defects of the existing chain lock in use.

The chain lock of the invention comprises:

the upper body is provided with a containing groove, the wall surface of the containing groove is provided with at least one guide strip groove and one positioning strip groove, the bottom of the upper body is provided with a through hole communicated with the containing groove, the wall surface of the upper body is provided with a fixed slot communicated with the through hole, and the bottom of the upper body is annularly provided with an embedded groove;

the lower body is pivoted below the upper body and provided with a through hole, the wall surface of the lower body is provided with a movable slot communicated with the through hole, the top edge of the through hole of the lower body is convexly provided with an embedded edge mutually embedded with the embedded slot of the upper body, and the bottom surface of the movable slot in the through hole of the lower body is provided with a blocking edge;

a fastening seat arranged in the through hole of the lower body, wherein the fastening seat is provided with an inserting groove, and the wall surface of the inserting groove is provided with a locking ring groove;

a lower fixing seat arranged below the lower body and the buckling seat, wherein the lower fixing seat is provided with a concave chamber;

the inserting and pulling rod is arranged in the containing groove of the upper body and penetrates through the through hole of the upper body and the through hole of the lower body, the inserting and pulling rod is arranged into a lock seat part and an inserting and pulling part, a containing chamber is arranged in the lock seat part, a positioning ring groove is arranged on the inner wall of the containing chamber, a pin hole and a first steel ball hole are arranged on the wall surface of the lock seat part, a positioning pin is arranged in the pin hole, a positioning steel ball is arranged in the first steel ball hole, a lock rod groove communicated with the containing chamber is arranged in the inserting and pulling part, two second steel ball holes communicated with the lock rod groove are arranged on the wall surface of the inserting and pulling part, and a lock catch steel ball is arranged in the second steel ball hole;

a compression spring, which is sleeved on the inserting part of the inserting rod and is arranged in the containing groove of the upper body;

the lock core is arranged in the containing chamber of the lock seat part of the inserting rod, the bottom of the lock core is provided with a rotating shaft, the bottom of the rotating shaft is provided with a concave hole, the wall surface of the rotating shaft is provided with a long through groove communicated with the concave hole, a fixing pin is arranged in the long through groove in a penetrating way, the bottom surface of the lock core is further provided with an insertion hole, the top surface of the lock core is provided with a key insertion hole, and the wall surface of the lock core is buckled with a C-shaped retaining ring;

the rotating body is arranged below the lock core, a through hole for the rotating shaft of the lock core to be arranged is formed in the rotating body, an arc-shaped groove is formed in the wall surface of the rotating body, a pin hole communicated with the through hole is formed in the wall surface of the rotating body, the fixing pin of the lock core penetrates through the pin hole of the rotating body, and a jack is formed in the rotating body;

the torsion spring is arranged between the lock core and the rotating body, one end of the torsion spring is inserted into the jack on the bottom surface of the lock core, and the other end of the torsion spring is inserted into the jack on the rotating body;

the locking rod is arranged below the rotating body, the top surface of the locking rod is provided with a convex body, the convex body is arranged in a concave hole of the lock core, the convex body is provided with a pin hole which is aligned with the pin hole of the rotating body, the fixing pin of the lock core is arranged in the pin hole of the locking rod in a penetrating way, and the wall surface of the lower end part of the locking rod is relatively provided with a cutting groove;

the upper fixing seat is arranged above the upper body and is provided with a through hole for the lock seat part of the inserting rod to penetrate through;

one end of the chain is fixedly arranged in the fixed slot of the upper body, and the other end of the chain is inserted in the movable slot of the lower body.

The chain lock of the invention is characterized in that the top surface of the upper body is provided with two screw holes, the upper fixing seat is provided with two through holes, two screws respectively penetrate through the two through holes of the upper fixing seat, the screws are screwed in the screw holes of the upper body, and the upper fixing seat is fixedly arranged above the upper body.

The chain lock of the invention, wherein, the bottom surface of the lower body is provided with two screw holes, the lower fixing seat is provided with two through holes, two screw holes of the lower fixing seat are respectively penetrated with a screw, the screw is screwed in the screw hole of the lower body, and the lower fixing seat is fixedly arranged below the lower body.

The chain lock has the advantages that: by means of the mutual buckling pivot group of the upper body and the lower body, the lock catch angle of the chain can be automatically rotated according to the use space, so that the lock catch is not limited by the space, and by means of the arrangement of the rotating body and the torsion spring, the lock catch can be carried out without using a key during the lock catch, and the lock catch has excellent use convenience.

Drawings

Fig. 1 is a perspective view of a conventional chain lock.

Fig. 2 is a schematic view showing the use of the conventional chain lock catch.

Fig. 3 is an exploded perspective view of an embodiment of the present invention.

Fig. 4 is a perspective assembly view of an embodiment of the present invention.

Fig. 5 is a combined cross-sectional view (unlocked state view) of an embodiment of the present invention.

FIG. 6 is a sectional view of another embodiment of the present invention in an assembled state (unlocked state).

FIG. 7 is a schematic cross-sectional view of a latch according to an embodiment of the present invention.

FIG. 8 is a schematic view of another cross-section of a latch according to an embodiment of the present invention.

Fig. 9 is a perspective view illustrating a locking according to an embodiment of the present invention.

Fig. 10 is a schematic view illustrating the use of the lower body and the upper body rotating at an angle according to the embodiment of the present invention.

Description of reference numerals: 1, a chain lock; 10 a lock body; 100 first cutting grooves; 101 a second cut; 11 compressing the spring; 12, a lock core; 13 inserting a detent rod; 14 chains; 2, mounting the body; 20 a containing groove; 21 a guide strip groove; 22 a positioning strip groove; 23 through holes; 24 fixing the slot; 25 caulking grooves; 26 screw holes; 27, an upper fixed seat; 270 through holes; 271 perforating; 272 screws; 3, a lower body; 30, punching holes; 31 a movable slot; 320, embedding edges; 321 a flange; 33 screw holes; 34 a fastening seat; 340 inserting a catch groove; 341 locking ring groove; 35 a lower fixed seat; 350 concave chambers; 351 perforating; 352 screw; 4 inserting the pulling rod; 40 a latch portion; a 400 chamber; 401 positioning a ring groove; 402 pin holes; 403 positioning pins; 404 a first steel ball hole; 405 positioning the steel ball; 41 an inserting part; 410 a lock bar slot; 411 second steel bead hole; 412 a lock catch steel ball; 5 compressing the spring; 6, locking the core; 60 rotating shafts; 600, concave holes; 601, a long through groove; 61 fixed pins; 62 jack; 63 a key receptacle; a 64C-shaped retaining ring; 65 a rotator; 650 punching; 651 an arc-shaped groove; 652 pin holes; 653 plug holes; 66 a torsion spring; 660 at one end; 661 at the other end; 67 lock bar; 670 convex body; 671 pin holes; 672 cutting grooves; 7, a chain; 70, one end; 71 at the other end.

Detailed Description

In order to achieve the above-mentioned objects and advantages, the present invention provides a method for implementing the following embodiments, which are shown in the drawings and described in detail as follows:

in the embodiment of the present invention, please refer to fig. 3 to 5, which mainly includes an upper body 2, the upper body 2 has a containing groove 20, the wall surface of the containing groove 20 is provided with at least one guiding strip groove 21 and a positioning strip groove 22, the bottom of the upper body 2 is provided with a through hole 23 communicated with the containing groove 20, the wall surface of the upper body 2 is provided with a fixing slot 24 penetrating through the through hole 23, the bottom of the upper body 2 is provided with an embedding groove 25, and the top surface of the upper body 2 is provided with two screw holes 26; a lower body 3 disposed below the upper body 2, the lower body 3 having a through hole 30, a movable slot 31 communicating with the through hole 30 being disposed on a wall surface of the lower body 3, an embedded edge 320 being protruded from a top edge of the through hole 30, a blocking edge 321 being disposed on a bottom surface of the movable slot 31 in the through hole 30, and at least two screw holes 33 being disposed on a bottom surface of the lower body 3; a fastening seat 34 disposed in the through hole 30 of the lower body 3, the fastening seat 34 having an insertion groove 340, a locking ring groove 341 disposed on a wall surface of the insertion groove 340; a lower fixing seat 35 disposed below the lower body 3 and the fastening seat 34, the lower fixing seat 35 having a recess 350 and at least two through holes 351, wherein a screw 352 is respectively inserted into the at least two through holes 351; a latch rod 4 disposed in the receiving cavity 20 of the upper body 2 and extending through the through hole 23 and the through hole 30 of the lower body 3, the latch rod 4 being provided with a locking seat portion 40 and a latch portion 41, the locking seat portion 40 being provided with a receiving chamber 400, the inner wall of the receiving chamber 400 being provided with a positioning ring groove 401, the wall of the locking seat portion 40 being provided with a pin hole 402, the pin hole 402 being provided with a positioning pin 403, the wall of the locking seat portion 40 being further provided with a first steel ball hole 404, the first steel ball hole 404 being provided with a positioning steel ball 405, the latch portion 41 being provided with a locking rod groove 410 communicating with the receiving chamber 400, the wall of the latch portion 41 being provided with two second steel ball holes 411 communicating with the locking rod groove 410, the two second steel ball holes 411 being provided with a steel ball lock catch 412; a compression spring 5, sleeved on the detent part 41 of the detent rod 4 and arranged in the accommodating groove 20 of the upper body 2; a lock core 6, which is arranged in the containing chamber 400 of the lock seat part 40 of the inserting rod 4, the bottom of the lock core 6 is provided with a rotating shaft 60, the bottom of the rotating shaft 60 is provided with a concave hole 600, the wall surface of the rotating shaft 60 is provided with a long through groove 601 communicated with the concave hole 600, a fixed pin 61 is arranged in the long through groove 601, the bottom surface of the lock core 6 is additionally provided with an inserting hole 62, the top surface of the lock core 6 is provided with a key inserting hole 63, and the wall surface of the lock core 6 is buckled with a C-shaped retaining ring 64; a rotator 65, which is arranged below the lock core 6, wherein the rotator 65 is a step-shaped convex body, the rotator 65 is provided with a through hole 650, the wall surface of the rotator 65 is provided with an arc-shaped groove 651, the wall surface of the rotator 65 is further provided with a pin hole 652 communicated with the through hole 650, and the rotator 65 is provided with a jack 653; a torsion spring 66 disposed between the lock core 6 and the rotator 65, wherein one end 660 of the torsion spring 66 is inserted into the insertion hole 62 on the bottom surface of the lock core 6, and the other end 661 is inserted into the insertion hole 653 of the rotator 65; a lock bar 67 disposed below the rotating body 65, a convex body 670 disposed on the top surface of the lock bar 67, the convex body 670 disposed in the concave hole 600 of the lock core 6, a pin hole 671 disposed on the convex body 670, and a cutting groove 672 disposed on the wall surface of the lower end of the lock bar 67; an upper fixing base 27 disposed above the upper body 2, the upper fixing base 27 having a through hole 270 and two through holes 271, the two through holes 271 each having a screw 272 passing therethrough; one end 70 of the chain 7 is fixedly arranged in the fixed slot 24 of the upper body 2, and the other end 71 of the chain 7 is arranged in the movable slot 31 of the lower body 3, thus obtaining a chain lock structure.

In assembly, referring to fig. 3 to 6, the fastening seat 34 is disposed in the through hole 30 below the lower body 3, the fastening seat 34 is retained and positioned by the retaining edge 321 in the through hole 30, the lower fixing seat 35 is disposed below the lower body 3, the bottom of the fastening seat 34 is disposed in the concave chamber 350 of the lower fixing seat 35, the screw 352 penetrating the through hole 351 of the lower fixing seat 35 is screwed into the screw hole 33 of the lower body 3, the fastening seat 34 is fixed in the through hole 30 below the lower body 3, the lower fixing seat 35 is fixed below the lower body 3, the upper body 2 is disposed above the lower body 3, the embedded edge 320 on the top surface of the lower body 3 and the embedded groove 25 on the bottom surface of the upper body 2 are embedded with each other (as shown in fig. 5 and 6), the lower body 3 is pivoted below the upper body 2 to rotate, and one end 660 of the torsion spring 66 is inserted into the insertion hole 62 on the bottom surface of the lock core 6, the other end 661 of the torsion spring 66 is inserted into the insertion hole 653 of the rotator 65, the torsion spring 66 is disposed between the lock core 6 and the rotator 65, the rotating shaft 60 of the lock core 6 is disposed into the through hole 650 of the rotator 65, the protrusion 670 of the lock rod 67 is disposed into the concave hole 600 of the lock core 6, the fixing pin 61 is disposed in the long through groove 601 of the lock core 6, the pin hole 652 of the rotator 65 and the pin hole 671 of the lock rod 67, the lock core 6, the rotator 65 and the lock rod 67 are combined into a whole, the lock core 6, the rotator 65, the torsion spring 66 and the lock rod 67 are disposed in the chamber 400 of the detent lever 4 and the lock rod groove 410, the C-shaped retaining ring 64 of the lock core 6 is disposed in the positioning ring groove 401 of the detent lever 4, the lock core 6, the rotator 65, the torsion spring 66 and the lock rod 67 are positioned in the detent lever 4 without being separated, the lock core 6, the torsion spring 66 and the torsion spring 65 are disposed in the chamber 400 of the detent portion 40, and the positioning pin 403 is disposed in the pin hole 402 of, the arc-shaped groove 651 of the rotator 65 is aligned with the first ball hole 404 of the lock seat 40, the positioning ball 405 is disposed in the first ball hole 404 of the lock seat 40, a portion of the positioning ball 405 is disposed in the arc-shaped groove 651 of the rotator 65, the torsion spring 66 is twisted with the rotator 65 by the lock core 6 to have a torsion force, the two latching balls 412 are disposed in the two second ball holes 411 of the detent 41, respectively, the notch 672 of the locking rod 67 is aligned with the second ball hole 411 of the detent rod 4, such that a portion of the latching ball 412 is disposed in the notch 672 of the locking rod 67, the compression spring 5 is disposed on the detent 41 of the detent rod 4, the one end 70 of the chain 7 is disposed in the fixed slot 24 of the upper body 2, the detent rod 4 is disposed in the receiving slot 20 and the through hole 23 of the upper body 2, and the lower end of the compression spring 5 abuts against the bottom surface of the receiving slot 20, the upper end of the compression spring 5 is abutted against the bottom surface of the lock seat 40 of the detent lever 4, the outer end of the positioning pin 403 on the wall surface of the lock seat 40 of the detent lever 4 is arranged in the guide strip groove 21 of the upper body 2, so that the detent lever 4 can not rotate in the upper body 2 and can only move up and down, the detent part 41 of the detent lever 4 is penetrated into the through hole 23 of the upper body 2 and one end 70 of the chain 7, so that the detent part 41 of the detent lever 4 fixes one end 70 of the chain 7 in the fixing slot 24 of the upper body 2, the upper fixing seat 27 is arranged above the upper body 2, two screws 272 are respectively penetrated through two through holes 271 of the upper fixing seat 27 and are screwed in two screw holes 26 of the upper body 2, and the lock seat 40 of the detent lever 4 protrudes out of the through hole 270 of the upper fixing seat 27, thus the whole assembly can be completed.

In use, referring to fig. 4-10, the chain 7 of the present invention is threaded around an object to be locked, such as a bicycle frame or a wheel, and the other end 71 of the chain 7 is inserted into the movable slot 31 of the lower body 3, such that the other end 71 of the chain 7 is aligned with the through hole 23 of the upper body 2 and the insertion slot 340 of the fastening seat 34 disposed in the lower body 3 (as shown in fig. 4-6), and the locking seat 40 of the insertion rod 4 protruding above the upper body 2 is pressed into the upper body 2 (as shown in fig. 7-9), the insertion rod 4 moves toward the upper body 2, the positioning pin 403 on the insertion rod 4 moves in the guide slot 21 of the upper body 2, and the positioning steel ball 405 also moves along with the insertion rod 4, when the steel ball 405 moves to the positioning slot 22 of the upper body 2, the positioning steel ball 405 is no longer supported by the wall surface of the accommodating slot 20 of the upper body 2, the positioning steel ball 405 can move into the positioning strip groove 22 of the upper body 2 and is no longer located in the arc-shaped groove 651 of the rotating body 65, at this time, the torsion spring 66 is elastically restored to drive the rotating body 65 to rotate, the wall surface of the rotating body 65 pushes the positioning steel ball 405 to move outwards, so that the part of the positioning steel ball 405 can be arranged in the positioning strip groove 22 of the upper body 2 in an outward protruding manner, the insertion rod 4 moves towards the upper body 2 and presses the compression spring 5, so that the compression spring 5 is elastically compressed, the lower end of the insertion part 41 of the insertion rod 4 penetrating through the through hole 23 of the upper body 2 penetrates through the other end 71 of the chain 7 and is inserted into the insertion groove 340 of the fastening seat 34 in the lower body 3, the locking steel ball 412 on the insertion rod 4 is aligned with the locking ring groove 341 of the fastening seat 34 in the lower body 3, and the rotating body 65 is driven to rotate by the elastic restoration of the torsion spring 66, the lock bar 67 below also rotates, the cutting groove 672 of the lock bar 67 is rotated away from the second steel ball hole 411 of the insertion rod 4, the wall surface of the lock bar 67 pushes the two lock catch steel balls 412 outwards, so that a part of the lock catch steel balls 412 protrudes outwards from the insertion rod 4 and is embedded into the lock catch ring groove 341 of the lock catch seat 34 (as shown in fig. 8), thus, the lock catch action can be completed without using a key, and the locking is very convenient during locking; the present invention directly fixes one end 70 of the chain 7 in the fixed slot 24 of the upper body 2 by the inserting rod 4, which can reduce the transverse volume of the lock body, and the other end 71 of the chain 7 can be stably locked in the movable slot 31 of the lower body 3 (as shown in fig. 7 and 8) by the embedding location of the locking steel ball 412 and the inserting buckle of the inserting rod 4, which has excellent anti-theft effect, and the lower body 3 of the present invention can be designed to be rotated at any angle at the bottom of the upper body 2, so that the user can adjust the relative locking angle between the movable slot 31 of the lower body 3 and the fixed slot 24 of the upper body 2 according to the space of the locking object (as shown in fig. 9 and 10), thereby the locking object can not complete the locking action due to the space limitation, and the present invention has more convenience in use.

When the lock is to be unlocked, the key is inserted into the key insertion hole 63 of the lock core 6 only, so that the key drives the rotating shaft 60 of the lock core 6 to rotate, the rotating shaft 60 of the lock core 6 drives the rotating body 65 and the lock rod 67 to rotate, the torsion spring 66 has a torsion force, the cutting groove 672 of the lock rod 67 is aligned with the second steel ball hole 411 of the inserting rod 4 again, the lock ball 412 embedded in the lock ring groove 341 of the lock seat 34 is not supported by the outer wall surface of the lock rod 67, and moves inwards to the second steel ball hole 411 of the inserting rod 4 and the cutting groove 672 of the lock rod 67, and is not embedded in the lock ring groove 341 of the lock seat 34, and the arc groove 651 of the rotating body 65 is aligned with the first steel ball hole 404 of the inserting rod 4 again, so that the positioning steel ball 405 moves inwards to the arc groove 651, and is not clamped in the positioning strip groove 22 of the upper body 2, and the compression spring 5 in the accommodating groove 20 of the upper body 2 elastically pushes the inserting rod 4 upwards (as shown in fig. 5) The upper part of the lock seat part 40 protrudes outwards on the upper fixed seat 27, the inserting rod 4 is pushed by the compression spring 5 to move upwards to be separated from the inserting groove 340 of the lower body 3 and the buckling seat 34 and the other end 71 of the chain 7, and the other end 71 of the chain 7 can be taken out from the movable slot 31 of the lower body 3, thus completing the tripping action.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A chain lock, comprising:

the lock core is arranged in the containing chamber of the lock seat part of the inserting rod, the bottom of the lock core is provided with a rotating shaft, the bottom of the rotating shaft is provided with a concave hole, the wall surface of the rotating shaft is provided with a long through groove communicated with the concave hole, a fixing pin is arranged in the long through groove in a penetrating way, the bottom surface of the lock core is also provided with an insertion hole, the top surface of the lock core is provided with a key insertion hole, and the wall surface of the lock core is buckled with a C-shaped retaining ring;

the rotating body is arranged below the lock core, a through hole for the rotating shaft of the lock core to be arranged is formed in the rotating body, an arc-shaped groove is formed in the wall surface of the rotating body, a pin hole communicated with the through hole is further formed in the wall surface of the rotating body, a fixing pin of the lock core penetrates through the pin hole of the rotating body, and a jack is formed in the rotating body;

2. The chain lock as claimed in claim 1, wherein the top surface of the upper body has two screw holes, the upper fixing base has two through holes, and a screw is inserted into each of the two through holes of the upper fixing base and screwed into the screw hole of the upper body.

3. The chain lock as claimed in claim 1, wherein the bottom surface of the lower body is provided with two screw holes, the lower fixing base is provided with two through holes, and a screw is inserted into each of the two through holes of the lower fixing base and is screwed into the screw hole of the lower body.