TWM627148U - chain lock - Google Patents

Abstract

The new system provides a chain lock, which is mainly composed of a lock body, a swivel base, a lower fixing base, a push lever, a lock core, an upper fixing base and a chain. The lock body and the swivel base are composed of They are pivoted to each other. There is a buckle seat in the swivel base, the lower fixing base is set below the swivel base, and a torsion spring, a swivel body and a lock rod are arranged under the lock core. Set between the lock core and the swivel body, the lock core, the swivel body, the torsion spring and the lock rod are set together in the insertion lever, and a compression spring is sleeved on the insertion lever, The locking lever and the compression spring are both arranged in the lock body, the upper fixing seat is arranged above the lock body, and one end of the chain is fixed in the fixing slot of the lock body by the locking lever. The other end is inserted into the movable slot of the swivel base, so that the locking angle of the chain can be adjusted arbitrarily, and the locking action can be completed without using a key.

Description

chain lock

The new model relates to a chain lock, in particular to a lock that can be locked without using a key, and the lock angle of the chain can be adjusted arbitrarily.

Press, the general chain lock is mainly used to lock items on fixed objects, such as: locking a bicycle on a column, while the traditional chain lock structure is connected by two ends of a chain that can lock each other. The locks are together, and the locks are paired locks or padlocks, mainly to prevent the locked items from being moved to prevent the items from being stolen: however, the traditional chain lock, the lock and the chain are separated. The lock is easy to lose, so there is a chain lock 1 structure in which the lock and one end of the chain are buckled into one. As shown in the first and second figures, a lock body 10 is mainly provided, and 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 arranged in the lock body 10, and an insertion lever 13 is arranged below the lock core 12, and the bottom end of the insertion lever 13 is It can penetrate 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 with a fixed bolt, and the other end of the chain 14 is fixed by the lock body 10 . The insertion lever 13 is inserted into the set position, and the insertion lever 13 is inserted into the second slot 101 of the lock body 10 for locking, so that the articles can be easily locked to achieve the anti-theft effect. However, the conventional chain lock 1 Although the lock body 10 and the chain 14 can be prevented from being separated and lost, the opening positions of the first slot 100 and the second slot 101 on the lock body 10 are fixed (reversely arranged) and cannot be adjusted. When the lock is limited by space, it is not easy to lock the chain 14, and a key is required to rotate the lock cylinder 12 when unlocking and locking, so the convenience of use is still insufficient.

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 this new type includes: a lock body, the lock body is provided with an accommodating groove, the wall surface of the accommodating groove is provided with at least one guide strip groove and a positioning strip groove, the bottom of the lock body is provided with There is a through hole connected to the accommodating groove, the wall surface of the lock body is provided with a fixed slot connected to the through hole, the bottom ring of the lock body is provided with an insert groove, and the top surface of the lock body is provided with two screws. A hole; a swivel seat is pivoted below the lock body, the swivel seat is provided with a through hole, the wall surface of the swivel seat is provided with a movable slot that communicates with the through hole, and the top edge of the through hole of the swivel seat is protruded with a The rim is embedded with the insert groove of the lock body. The through hole of the swivel base is provided with a baffle on the bottom surface of the movable notch. The bottom surface of the swivel base is provided with two screw holes in the through hole of the swivel base. There is a buckle seat, the buckle seat is provided with an insertion slot, and the wall surface of the insertion slot is provided with a lock ring groove; The fixing base is provided with a recess, the lower fixing base is provided with two through holes, a screw is threaded through the two through holes of the lower fixing base, and the screw is screwed into the screw hole of the swivel base; Set in the accommodating groove of the lock body and extending through the through hole and the through hole of the swivel base, the insertion lever is set as a lock seat part and an insertion lock part, the lock seat part is provided with an accommodating chamber, the The inner wall of the lock seat is provided with a positioning ring groove, the wall surface of the lock seat is provided with a pin hole and a first steel ball hole, the pin hole is provided with a positioning pin, and the first steel ball hole is provided with a positioning steel ball , There is a lock lever groove connected to the chamber in the latch, the wall surface of the latch is provided with two second steel ball holes connected to the lock lever groove, and a lock is arranged in the second ball hole Steel balls, a compression spring is sleeved on the latch portion of the latch lever and is set in the accommodating groove of the lock body; A lock core is installed in the receptacle of the lock seat portion of the push lever, the bottom of the lock core is provided with a rotating shaft, the bottom of the rotating shaft is provided with a concave hole, and the wall surface of the rotating shaft is provided with a hole connected to the concave hole The long slot, the bottom surface of the lock core is provided with a socket, the top surface of the lock core is provided with a key socket, the wall surface of the lock core is buckled with a C-shaped buckle, and the C-shaped buckle is embedded In the positioning ring groove of the push lever, a swivel is set below the lock core, the swivel is provided with a through hole for the shaft of the lock core to be inserted into, and the wall of the swivel is provided with an arc-shaped groove , the wall of the swivel body is also provided with a long through-hole connected to the through hole, the swivel body is provided with a socket, a torsion spring is set between the lock core and the swivel body, the torsion force of the torsion spring is One end of the spring is inserted into the socket on the bottom surface of the lock core, and the other end of the torsion spring is inserted into the socket of the swivel body. There is a convex body, the convex body is arranged in the concave hole of the lock core, the convex body is provided with a pin hole, the wall surface of the lower end of the lock rod is oppositely provided with a groove, and a fixed pin is passed through the swivel body The long through slot of the lock core and the pin hole of the lock rod; an upper fixing seat is set on the top of the lock body, and a lock seat for the insertion lever is arranged on the upper fixing seat The upper fixing seat is provided with two through holes, each of the two through holes of the upper fixing seat is provided with a screw, the screw is screwed into the screw hole of the lock body, and one of the upper fixing seat There is a connecting piece on the side connected to a dust cover; a chain, one end of the chain is fixed in the fixed groove of the lock body, the other end of the chain is inserted in the movable groove of the swivel base, and the outside of the chain is provided with Covered.

The advantages of this new type of chain lock lie in that the lock system and the swivel base are pivoted to each other, so that the swivel base and the lock body can rotate at any angle, and the lock angle of the chain can be automatically rotated according to the use space, so that the lock chain can be locked. It is not limited by space, and with the rotation of the lock core and the setting of the torsion spring, it can be automatically locked without using a key when locking. Dustproof, waterproof effect.

1: Chain lock

10: Lock body

100: First Groove

101: Second grooving

11: Compression spring

12: lock heart

13: Insert the lever

14: Chain

2: Lock body

20: accommodating slot

21: Guide strip groove

22: Positioning slot

23: Through hole

24: Fixed grooving

25: Groove

26: Screw holes

3: Transposition

30: perforation

31: Active grooving

32: Rim

33: Flange

34: screw holes

35: Snap seat

350: Insert slot

351: Lock ring groove

4: Lower fixing seat

40: Alcove

41: Perforation

42: Screws

5: Insert the lever

50: Lock seat part

500: Chamber

501: Locating ring groove

502: pin hole

503: Locating pin

504: The first steel ball hole

505: Positioning steel balls

51: Insertion Department

510: Lock lever slot

511: The second steel ball hole

512: lock steel ball

52: Compression spring

6: Lock the heart

60: Spindle

601: long slot

61: Recessed hole

62: jack

63: Key Jack

64: C-type buckle

65: Swivel

650: perforated

651: Arc groove

652: Long slot

653: jack

66: Torsion spring

660: One end of the torsion spring

661: The other end of the torsion spring

67: Lock lever

670: Convex

671: pin hole

672: Grooving

68: Fixed pin

7: Upper fixed seat

70: Through hole

71: Perforation

72: Screws

73: connecting piece

74: Dust cover

8: Chain

80: one end of the chain

81: The other end of the chain

82: Cover

The first figure is a perspective view of a conventional chain lock.

The second figure is a schematic diagram of the use of the conventional chain lock.

The third figure is an exploded perspective view of the lock according to the new embodiment.

The fourth figure is a three-dimensional combined view of the new embodiment.

Figure 5 shows a combined cross-sectional view (unlocked state view) of the new embodiment.

Figure 6 shows a combined cross-sectional view (unlocked state view) of another angle of the new embodiment.

Figure 7 is a three-dimensional schematic view of the new embodiment of the present invention when the buckle is locked.

The eighth figure is a schematic cross-sectional view of the lock according to the new embodiment.

The ninth figure is a schematic cross-sectional view of another angle when the new embodiment is locked.

Figure 10 is a schematic diagram of the use of the rotating seat and the lock body rotating at an angle according to the new embodiment.

Regarding the technical means adopted by this new model in order to achieve the above-mentioned use purpose and effect, the preferred and feasible embodiments are hereby cited and shown in the drawings, and the details are as follows:

Referring to the third to fifth figures, the embodiment of the present invention is mainly provided with a lock body 2, the lock body 2 is provided with an accommodating groove 20, and the wall surface of the accommodating groove 20 is provided with at least one guide A slot 21 and a positioning slot 22, the bottom of the lock body 2 is provided with a through hole 23 that communicates with the accommodating slot 20, and the wall surface of the lock body 2 is provided with a lateral cut and communicated with the through hole 23 for fixing Slots 24, the bottom of the lock body 2 is provided with an insert groove 25, the top surface of the lock body 2 is provided with two screw holes 26; A through hole 30 is formed on the wall surface of the swivel base 3 . A movable slot 31 is cut transversely and communicated with the through hole 30 . The bottom surface of the swivel base 3 is provided with a baffle 33, the bottom surface of the swivel base 3 is provided with at least two screw holes 34, and a buckle seat 35 is provided in the through hole 30 of the swivel base 3, and the buckle socket 35 is provided with an insertion slot. 350, the wall surface of the insertion slot 350 is provided with A locking ring groove 351; a lower fixing base 4, which is fastened below the rotating base 3 and the buckle base 35, the lower fixing base 4 is provided with a recess 40 and at least two through holes 41, and the at least two through holes 41 are inside A screw 42 is respectively penetrated; an insertion lever 5 is arranged in the accommodating slot 20 of the lock body 2 and extends through the through hole 23 and the through hole 30 of the swivel base 3. The insertion lever 5 is set as The lock seat part 50 and the latching part 51, the lock seat part 50 is provided with a chamber 500, the inner wall of the chamber 500 is provided with a positioning ring groove 501, the wall surface of the lock seat part 50 is provided with a pin hole 502, the A positioning pin 503 is arranged in the pin hole 502, and a first steel ball hole 504 is arranged on the wall surface of the lock seat 50. A positioning steel ball 505 is arranged in the first steel ball hole 504. The lock lever groove 510 of the chamber 500 and the wall surface of the latching portion 51 are provided with two second steel ball holes 511 communicating with the lock lever groove 510 , and a locking steel ball 512 is provided in each of the two second steel ball holes 511 , a compression spring 52 is sleeved on the latch portion 51 of the latch lever 5 and is set in the accommodating groove 20 of the lock body 2; a lock core 6 is set in the latch of the latch lever 5 In the chamber 500 of the seat portion 50 , 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 61 , and the wall surface of the rotating shaft 60 is provided with a long through groove 601 communicating with the concave hole 61 . , the bottom surface of the lock core 6 is further provided with a socket 62, the top surface of the lock core 6 is provided with a key socket 63, the wall surface of the lock core 6 is buckled with a C-shaped buckle 64, the C-shaped buckle 64 and is embedded in the positioning ring groove 501 of the insert lever 5, a swivel 65 is arranged below the lock core 6, and the swivel 65 is provided with a through hole 650 for the shaft 60 of the lock core 6 to be inserted into, An arc-shaped groove 651 is formed on the wall surface of the rotating body 65, and a long through groove 652 connected to the through hole 650 is formed on the wall surface of the rotating body 65. The rotating body 65 is provided with an insertion hole 653, a torque The spring 66 is arranged between the lock core 6 and the swivel body 65 , one end 660 of the torsion spring of the torsion spring 66 is inserted into the socket 62 on the bottom surface of the lock core 6 , and the other end 661 of the torsion spring is inserted into the socket 62 . In the insertion hole 653 of the swivel body 65 , a lock lever 67 is arranged below the swivel body 65 , and a convex body 670 is arranged on the top surface of the lock lever 67 , and the convex body 670 is arranged in the concave portion of the lock core 6 . In the hole 61 , a pin hole 671 is formed on the convex body 670 , a groove 672 is oppositely formed on the wall of the lower end of the locking rod 67 , and a fixing pin 68 is passed through the long through groove 652 of the swivel 65 . Inside the long slot 601 of the lock core 6 and the pin hole 671 of the lock lever 67; an upper fixing seat 7. It is located above the lock body 2, the upper fixing seat 7 is provided with a through hole 70 and two through holes 71, and a screw 72 is passed through each of the two through holes 71, and one side of the upper fixing seat 7 is provided with a The connecting piece 73 is connected to a dust cover 74, which can be covered on the upper fixing seat 7; a chain 8, one end 80 of the chain is fastened and fixed in the fixing slot 24 of the lock body 2, and the other side of the chain is One end 81 is set in the movable slot 31 of the swivel base 3 , and the outer part of the chain 8 is provided with a covering body 82 , which is a chain lock structure.

When assembling, please refer to Figures 3 to 6, set the buckle seat 35 in the through hole 30 under the swivel base 3, so that the buckle seat 35 is blocked and positioned by the baffle 33 in the through hole 30, and then the lower The fixing base 4 is arranged below the swivel base 3 , so that the bottom of the buckle base 35 is set in the recess 40 of the lower fixing base 4 , and is screwed by the screw 42 which penetrates through the hole 41 of the lower fixing base 4 . Set in the screw hole 34 of the swivel base 3, fix the buckle base 35 in the lower hole 30 of the swivel base 3, and the lower fixing base 4 is fixed under the swivel base 3, and the lock body 2 sets It is located above the swivel base 3, and the rim 32 on the top surface of the swivel base 3 and the insert groove 25 on the bottom surface of the lock body 2 are embedded in each other (as shown in the fifth and sixth figures), so that the swivel base 3 is pivoted to the lock. The bottom of the main body 2 can be rotated, and one end 660 of the torsion spring is inserted into the socket 62 on the bottom surface of the lock core 6, and the other end 661 of the torsion spring is inserted into the socket 653 of the rotating body 65, so that the torsion spring 66 is set in the lock between the core 6 and the swivel body 65, set the shaft 60 of the lock core 6 into the through hole 650 of the swivel body 65, and then set the convex body 670 of the lock rod 67 into the concave hole 61 of the lock core 6. The fixed pin 68 is inserted into the long through grooves 652 and 601 of the swivel body 65 and the lock core 6 and the pin hole 671 of the lock rod 67, and the lock core 6, the swivel body 65 and the lock rod 67 are combined into one, and then the lock The core 6, the swivel body 65, the torsion spring 66 and the locking rod 67 are all installed in the chamber 500 and the locking rod groove 510 of the insertion lever 5, and the C-shaped buckle 64 of the locking core 6 is embedded in the insertion lever 5. In the positioning ring groove 501, the lock core 6, the swivel body 65, the torsion spring 66 and the lock rod 67 are positioned in the insertion lever 5 and will not come out. In the accommodating chamber 500 of the seat part 50 , the positioning pin 503 is set in the pin hole 502 of the lock seat part 50 , and the arc groove 651 of the swivel body 65 is aligned with the first steel ball hole of the lock seat part 50 504 position, and set the positioning steel ball 505 into the first steel ball hole 504 of the lock seat 50, and the positioning steel ball 505 A part is located in the arc-shaped groove 651 of the swivel body 65 , and the torsion spring 66 is twisted by the lock core 6 and the swivel body 65 to have a torsional force, and the two locking steel balls 512 are respectively arranged in the insertion catch portion 51 . The two second steel ball holes 511, and the slot 672 of the locking lever 67 is aligned with the position of the second steel ball hole 511 of the insert lever 5, so that a part of the locking steel ball 512 can be located in the slot 672 of the locking lever 67, Then, the compression spring 52 is sleeved on the inserting stopper 51 of the inserting stopper rod 5 , and one end 80 of the chain is set into the fixing slot 24 of the lock body 2 , and then the inserting stopper 5 is set in the lock body 2 . In the accommodating groove 20 and the through hole 23 , the lower end of the compression spring 52 abuts against the bottom surface of the accommodating groove 20 , and the upper end of the compression spring 52 abuts against the bottom surface of the lock seat 50 of the insertion lever 5 , and the insertion The outer end of the positioning pin 503 on the wall surface of the lock seat 50 of the lock lever 5 is set in the guide groove 21 of the lock body 2, so that the insertion lever 5 cannot rotate in the lock body 2 but can only move up and down , the inserting part 51 of the latching lever 5 is extended through the through hole 23 of the lock body 2 and one end 80 of the chain, so that the inserting part 51 of the latching lever 5 fixes the one end 80 of the chain to the fixing slot of the lock body 2 24, the upper fixing base 7 is set above the lock body 2, and two screws 72 are respectively passed through the two holes 71 of the upper fixing base 7 and screwed into the two screw holes 26 of the lock body 2, and the lock is inserted into the lock body 2. The locking seat portion 50 of the rod 5 protrudes from the through hole 70 of the upper fixing seat 7, so that the whole assembly can be completed.

When using, please refer to Figures 4 to 10, thread the chain 8 of the new model 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 into the swivel base 3 In the movable slot 31, the other end 81 of the chain is aligned with the through hole 23 of the lock body 2 and the insertion slot 350 of the buckle seat 35 in the swivel base 3 (as shown in the fourth to sixth figures) , and then press the lock seat portion 50 of the insertion lever 5 protruding above the lock body 2 into the lock body 2 (as shown in Figures 7 to 9), and the insertion lever 5 moves toward the lock body 2 , the positioning pin 503 on the locking lever 5 moves in the guide groove 21 of the lock body 2 , and the positioning steel ball 505 also moves with the locking lever 5 , and the steel ball 505 to be positioned moves to the positioning groove of the lock body 2 At 22:00, the positioning steel ball 505 is no longer held against the wall surface of the accommodating groove 20 of the lock body 2, so that the positioning steel ball 505 can be moved into the positioning bar groove 22 of the lock body 2 and is no longer located in the arc-shaped groove of the swivel body 65 651, at this time the torsion spring 66 Then, the swivel body 65 is driven to rotate by elastic recovery, so that the wall surface of the swivel body 65 pushes against the positioning steel ball 505 and moves outward, so that the part of the positioning steel ball 505 can be protruded outward in the positioning groove 22 of the lock body 2, The latch lever 5 moves into the lock body 2 and presses the compression spring 52, so that the compression spring 52 is in an elastically compressed state, and the latch portion of the latch lever 5 penetrates through the through hole 23 of the lock body 2 The lower end of 51 is inserted into the other end 81 of the chain and inserted into the insertion slot 350 of the buckle seat 35 in the swivel base 3 , and the locking steel ball 512 on the insertion lever 5 is aligned with the swivel base 3 . The locking ring groove 351 of the buckle seat 35, while the rotating body 65 is driven to rotate by the elastic recovery of the torsion spring 66, the locking rod 67 below also rotates accordingly, and the cutting groove 672 of the locking rod 67 is rotated away from the insertion lever. The second steel ball hole 511 of 5, the wall surface of the locking rod 67 pushes the two locking steel balls 512 outward, so that a part of the locking steel ball 512 protrudes outwards from the insertion lever 5 and is embedded in the lock of the locking seat 35 In the retaining ring groove 351 (as shown in the eighth figure), the dust cover 74 is placed on the upper fixing seat 7, so that the locking action can be completed without using a key, which is very convenient when locking; The one end 80 of the chain is directly fixed in the fixing slot 24 of the lock body 2 by the insert lever 5, which can reduce the lateral volume of the lock body 2. In addition, the lock steel ball 512 is inserted into the setting position and the insert lever 5 is inserted into the lock. The other end 81 of the chain can be securely locked in the movable slot 31 of the swivel base 3 (as shown in the seventh and eighth pictures), which has excellent anti-theft effect, and the design of the swivel base 3 of this new type can be used in The bottom of the lock body 2 can be rotated at any angle, and the user can adjust the relative locking angle between the movable slot 31 on the swivel base 3 and the fixed slot 24 of the lock body 2 according to the space of the locking object (such as the ninth , as shown in Figure 10), so that when the object is locked, it will not be unable to complete the locking action due to space constraints, and by the shielding of the dust cover 74, dust and water and other contaminants can be prevented from entering the key slot 63. It is more convenient to use.

When you want to unlock, you only need to insert the key into the key hole 63 of the lock core 6, so that the key drives the rotation shaft 60 of the lock core 6 to rotate, and the rotation shaft 60 of the lock core 6 rotates in conjunction with the rotating body 65 and the lock rod 67 to rotate , and the torsion torsion spring 66 has a torsion force, the slot 672 of the lock lever 67 is aligned with the position of the second steel ball hole 511 of the insertion lever 5 again, and is embedded in the lock ring groove 351 of the buckle seat 35 The locking steel ball 512 is no longer affected by the outer wall of the locking rod 67 When it is pressed against, it can be moved inwardly into the second steel ball hole 511 of the insert lever 5 and the cut groove 672 of the lock lever 67, and is no longer embedded in the lock ring groove 351 of the buckle seat 35, and the rotating body 65 The arc-shaped groove 651 is aligned with the position of the first steel ball hole 504 of the insert lever 5 again, so that the positioning steel ball 505 can move into the arc-shaped groove 651 and is no longer clamped in the positioning bar groove 22 of the lock body 2 At the same time, the compression spring 52 disposed in the accommodating groove 20 of the lock body 2 elastically pushes the latch lever 5 upward (as shown in the fifth figure), so that the upper part of the lock seat 50 protrudes outward. On the upper fixed seat 7 , the insertion lever 5 is pushed up by the compression spring 52 and disengaged from the insertion lock groove 350 of the swivel base 3 and the buckle seat 35 and the other end 81 of the chain, and the other end 81 of the chain can be rotated from the swivel base 3 . The movable slot 31 is taken out, so that the unlocking action can be completed. The new model is not limited by the size of the lock space in use, which makes the locking object more convenient, and can be locked and positioned for any item, and has excellent performance. anti-theft effect.

To sum up, the present invention has indeed achieved the intended purpose and effect, and is more ideal and practical than those in the prior art. However, the above-mentioned embodiments are only specific descriptions for the preferred embodiments of the present invention. This embodiment is not intended to limit the scope of the patent application of the present invention, and all other equivalent changes and modifications made without departing from the technical means disclosed in the present invention shall be included in the patent application scope of the present invention.

2: Lock body

20: accommodating slot

21: Guide strip groove

22: Positioning slot

23: Through hole

24: Fixed grooving

25: Groove

26: Screw holes

3: Transposition

30: perforation

31: Active grooving

32: Rim

33: Flange

34: screw holes

35: Snap seat

350: Insert slot

351: Lock ring groove

4: Lower fixing seat

40: Alcove

41: Perforation

42: Screws

5: Insert the lever

50: Lock seat part

500: Chamber

501: Locating ring groove

502: pin hole

503: Locating pin

504: The first steel ball hole

505: Positioning steel balls

51: Insertion Department

510: Lock lever slot

511: The second steel ball hole

512: lock steel ball

52: Compression spring

6: Lock the heart

60: Spindle

601: long slot

61: Recessed hole

62: jack

63: Key Jack

64: C-type buckle

65: Swivel

650: perforated

651: Arc groove

652: Long slot

653: jack

66: Torsion spring

660: One end of the torsion spring

661: The other end of the torsion spring

67: Lock lever

670: Convex

671: pin hole

672: Grooving

68: Fixed pin

7: Upper fixed seat

70: Through hole

71: Perforation

72: Screws

73: connecting piece

74: Dust cover

Claims (1)

A chain lock, comprising: A lock body, the lock body is provided with an accommodating groove, the wall surface of the accommodating groove is provided with at least one guide strip groove and a positioning strip groove, and the bottom of the lock body is provided with a channel communicating with the accommodating groove a hole, the wall surface of the lock body is provided with a fixed slot connected to the through hole, the bottom ring of the lock body is provided with an insert groove, and the top surface of the lock body is provided with two screw holes; A swivel seat is pivoted below the lock body, the swivel seat is provided with a through hole, the wall surface of the swivel seat is provided with a movable slot connected to the through hole, and the top edge of the through hole of the swivel seat is protruded with the hole. The insert grooves of the lock body are embedded with each other. The through hole of the swivel base is provided with a baffle on the bottom surface of the movable slot. The bottom surface of the swivel base is provided with two screw holes. a buckle socket, the buckle socket is provided with an insertion slot, and a locking ring slot is arranged on the wall surface of the insertion slot; The lower fixing base is arranged below the rotating base and the buckle base, the lower fixing base is provided with a recess, the lower fixing base is provided with two through holes, and a screw is passed through each of the two through holes of the lower fixing base , the screw is screwed into the screw hole of the swivel base; An insert lever is arranged in the accommodating groove of the lock body and extends through the through hole and the through hole of the swivel base. There is a chamber, the inner wall of the lock seat is provided with a positioning ring groove, the wall of the lock seat is provided with a pin hole and a first steel ball hole, the pin hole is provided with a positioning pin, the first steel ball A positioning steel ball is arranged in the hole, a locking lever groove connected to the chamber is arranged in the insertion latch, and two second steel ball holes communicated with the locking lever groove are arranged on the wall surface of the insertion latch. The second steel ball A locking steel ball is arranged in the hole, and a compression spring is sleeved on the inserting stopper of the inserting stopper rod and is arranged in the accommodating groove of the lock body; A lock core is installed in the receptacle of the lock seat portion of the push lever, the bottom of the lock core is provided with a rotating shaft, the bottom of the rotating shaft is provided with a concave hole, and the wall surface of the rotating shaft is provided with a hole connected to the concave hole The long slot, the bottom surface of the lock core is provided with a socket, the top surface of the lock core is provided with a key socket, the wall surface of the lock core is buckled with a C-shaped buckle, and the C-shaped buckle is embedded In the positioning ring groove of the push lever, a swivel is set below the lock core, the swivel is provided with a through hole for the shaft of the lock core to be inserted into, and the wall of the swivel is provided with an arc-shaped groove , the wall of the swivel body is also provided with a long through-hole connected to the through hole, the swivel body is provided with a socket, a torsion spring is set between the lock core and the swivel body, the torsion force of the torsion spring is One end of the spring is inserted into the socket on the bottom surface of the lock core, and the other end of the torsion spring is inserted into the socket of the swivel body. There is a convex body, the convex body is arranged in the concave hole of the lock core, the convex body is provided with a pin hole, the wall surface of the lower end of the lock rod is oppositely provided with a groove, and a fixed pin is passed through the swivel body the long through slot of the lock core and the pin hole of the lock lever; An upper fixing seat is arranged above the lock body, the upper fixing seat is provided with a through hole for the lock seat portion of the insert lever to pass through, the upper fixing seat is provided with two through holes, and the upper fixing seat is provided with a through hole. Each of the two through holes is provided with a screw, and the screw is screwed into the screw hole of the lock body, and one side of the upper fixing seat is provided with a connecting piece to connect a dust cover; A chain, one end of the chain is fastened in the fixed slot of the lock body, the other end of the chain is inserted into the movable slot of the swivel base, and the outside of the chain is provided with a covering body.

Images