Multi-linkage luggage lock

Abstract

The utility model discloses a multi-linkage luggage lock which comprises a central control lock shell, and a password wheel assembly, a lock cylinder assembly, a lock bar, a lock plate, a push system, a left connecting rod, a right connecting rod, a first left lock catch and a first right lock catch are arranged in the central control lock shell, and is characterized by further comprising a second left lock catch and a second right lock catch, the second left lock catch is linked with the first left lock catch through a left steel wire rope, and the second right lock catch is linked with the second right lock catch through a right steel wire rope. According to the coded lock, linkage of the four lock catches can be controlled at the same time through the single pushing system, opening and closing of a plurality of side locks are controlled through the single pushing system, and therefore the coded lock is more convenient to unlock. A clutch block and an ejector block are further arranged in the central control shell, and the left clutch block and the right clutch block can prevent the lock hook from being bounced off when the box vibrates. The left ejector block and the right ejector block are used for ejecting the lock hook out after unlocking and blocking the lock catch at the unlocking position after unlocking.

Description

TECHNICAL FIELD

[0001] The utility model relates to a luggage lock, in particular to a multi-linkage luggage lock. BACKGROUND

[0002] With the need of people's work, travel, business trip and other travel, various types of luggage occupy more and more important position in people's life, people often put some valuable goods and data into the luggage for carrying. Therefore, the safety and theft prevention of the luggage are paid more and more attention by people, and the luggage lock becomes an indispensable part in the luggage.

[0003] In the prior art, the luggage lock with linkage function generally adopts two pushers to control, such as the utility model patent with the Chinese patent application number 202322391740X, when unlocking, two pushers need to be pushed at the same time to unlock, which is inconvenient to operate. SUMMARY

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a multi-linkage luggage lock. The utility model can control four lock buckles linkage at the same time through a single pusher, and the opening and closing of multiple side locks are controlled through a single pusher, so that the password lock is more convenient to unlock.

[0005] The purpose of the utility model is realized by the following technical scheme: a multi-linkage luggage lock, comprising a central control lock shell, a password wheel assembly, a lock core assembly, a lock bar, a lock piece, a pusher, a left connecting rod, a right connecting rod, a first left lock buckle and a first right lock buckle are arranged in the central control lock shell, further comprising a second left lock buckle and a second right lock buckle, the second left lock buckle is linked with the first left lock buckle through a left steel wire rope, the second right lock buckle is linked with the first right lock buckle through a right steel wire rope, the first left lock buckle is connected with the left connecting rod, the first right lock buckle is connected with the right connecting rod, one end of the lock bar abuts against the pusher, and the other end abuts against the lock piece, a lock piece spring is arranged at the bottom of the lock piece, when unlocking by password or key, the lock piece cancels the abutment against the lock bar, and the pusher can drive the left connecting rod and the right connecting rod to move at the same time.

[0006] As an improvement of the multi-linkage luggage lock of the utility model, when unlocking by password, the correct password is input, the lock piece is upwardly popped up under the action of the lock piece spring to cancel the abutment against the lock bar, the pusher can drive the left connecting rod and the right connecting rod to move at the same time, the left connecting rod moves to drive the first left lock buckle and the second left lock buckle to move and unlock at the same time, and the right connecting rod moves to drive the first right lock buckle and the second right lock buckle to move and unlock at the same time.

[0007] As an improvement of the utility model multi-link box bag lock, the lock cylinder assembly includes lock cylinder and lock cylinder cover, the lock cylinder is arranged in the lock cylinder cover, the bottom of the lock cylinder is equipped with unlocking slope, one end of the lock piece is equipped with abutting rod, the end of the abutting rod is equipped with arc part, the arc part abuts on the unlocking slope;

[0008] When the key is unlocked, the lock cylinder is rotated by the key, the unlocking slope at the bottom of the lock cylinder can push the abutting rod to sink, the abutting rod sinking drives the lock piece to sink, the lock piece sinking cancels the abutting restriction to the lock bar, the pusher is pushed to drive the left connecting rod and the right connecting rod to move simultaneously, the left connecting rod moves to drive the first left lock catch and the second left lock catch to move and unlock simultaneously, the right connecting rod moves to drive the first right lock catch and the second right lock catch to move and unlock simultaneously.

[0009] As an improvement of the utility model multi-link box bag lock, the middle control lock shell is further equipped with left top block, left clutch block, right top block and right clutch block, the left top block, left clutch block, right top block and right clutch block are all equipped with spring, the left clutch block and the right clutch block are all equipped with clutch block, one side of the clutch block is equipped with clutch slope, the left connecting rod and the right connecting rod are all equipped with clutch slot, one side of the clutch slot is equipped with slope, the clutch block cooperates with the clutch slot; The left clutch block and the right clutch block can prevent the lock hook from opening when the box vibrates. The functions of the left top block and the right top block are to push out the lock hook after unlocking; and to block the lock catch in the unlocking position after unlocking.

[0010] Locking process: the first left lock hook is inserted into the lock body from the lock hook hole of the middle control lock shell, the left top block is pushed back to the original position, the limitation to the first left lock catch is cancelled, the left lock catch moves left under the elastic force of the lock catch spring, and the first left lock hook is buckled, after the first left lock catch returns to the position, the left clutch block also returns to the position under the spring force, and the lock catch is blocked, and the locking is completed. The locking of the first right lock hook, the second left lock hook and the second right lock hook is synchronous linkage with the locking of the first left lock hook.

[0011] In the locking state, the left top block abuts on the first left lock hook, the clutch block on the left clutch block is embedded in the clutch slot on the left connecting rod; the right top block abuts on the first right lock hook, and the clutch block on the right clutch block is embedded in the clutch slot on the right connecting rod.

[0012] As an improvement of the utility model multi-link box bag lock, one end of the first left lock catch, the first right lock catch, the second left lock catch and the second right lock catch is equipped with lock hook limiting slot, when locking, the first left lock hook is hooked in the lock hook limiting slot of the first left lock catch, the first right lock hook is hooked in the lock hook limiting slot of the first right lock catch, the second left lock hook is hooked in the lock hook limiting slot of the second left lock catch, and the second right lock hook is hooked in the lock hook limiting slot of the second right lock catch.

[0013] As an improvement of the utility model multi-link box bag lock, one end of the left connecting rod and the right connecting rod is provided with a long strip let -go hole, and the long strip let -go hole on the left connecting rod and the right connecting rod is obliquely arranged.

[0014] As an improvement of the utility model multi-link box bag lock, the central control lock shell is further provided with a switching block and a pressing block, the pressing block is connected and fixed on the pusher, the switching block is rotatably installed on the pressing block, both ends of the switching block are respectively provided with a push rod and a limiting rod, the middle part of the switching block is provided with a through hole, the through hole is provided with a rotating rod, the rotating rod is connected on the pressing block, the pressing block is provided with two arc-shaped through holes at intervals, the limiting rod is arranged in the arc-shaped through hole, and the push rod is arranged in the long strip let -go hole.

[0015] The horizontal push of the pusher can drive the left connecting rod and the right connecting rod to move simultaneously, and the movement of the left connecting rod and the right connecting rod can drive the switching block to rotate.

[0016] As an improvement of the utility model multi-link box bag lock, the password wheel assembly comprises an axle, a plurality of password wheels, a plurality of code adjusting wheels, a password wheel spring and a code adjusting switch, the code adjusting wheel is arranged in the password wheel, the axle is arranged on the code adjusting wheel, the password wheel spring is arranged on the axle and abuts against one of the code adjusting wheels, the code adjusting switch is arranged at one end of the axle, both ends of the axle are respectively arranged on the partition plate, the lower side of the password wheel is provided with a password wheel spring, and the code adjusting wheel is provided with a V-shaped let -go groove.

[0017] As an improvement of the utility model multi-link box bag lock, a plurality of baffles and a plurality of password wheel let -go holes are arranged on the lock plate at intervals, the middle part of each baffle is provided with a V-shaped protrusion, and the side edge of the lock plate is provided with an abutting gap.

[0018] When the password is unlocked, the V-shaped let -go groove on the code adjusting wheel corresponds to the V-shaped protrusion, the V-shaped protrusion can be embedded in the V-shaped let -go groove, and the lock plate is upwardly bounced to cancel the abutting restriction of the lock bar.

[0019] As an improvement of the utility model multi-link box bag lock, the left lock catch bottom shell and the right lock catch bottom shell are further provided, the second left lock catch is arranged in the left lock catch bottom shell, the second right lock catch is arranged in the right lock catch bottom shell, one end of the second left lock catch and the second right lock catch is provided with a lock catch spring, the left connecting rod is provided with a spring mounting hole, and the spring mounting hole is provided with a connecting rod reset spring.

[0020] The central control lock shell comprises a bottom shell, a panel and an inner shell, the inner shell is fixed in a cavity of the bottom shell, the password wheel assembly is installed on the inner shell, the panel covers the bottom shell and is fixed by screws, the panel is provided with a pusher mounting hole, a lock core mounting hole and a password wheel extension hole, and the bottom shell is provided with a code adjusting switch extension hole.

[0021] The utility model discloses the beneficial effect lies in: the utility model discloses can control four lock catch linkage through single pusher, control the opening and closing of multiple edge locks through single pusher, make the password lock opening more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the perspective drawing of the utility model;

[0023] Figure 2 It is the exploded view of the utility model;

[0024] Figure 3 It is the internal structure schematic view of the central control lock shell of the utility model;

[0025] Figure 4 It is the front view of the internal structure of the central control lock shell of the utility model;

[0026] Figure 5 It is the rear view of the internal structure of the central control lock shell of the utility model;

[0027] Figure 6 It is the structure schematic view of the password wheel assembly and lock core assembly of the utility model;

[0028] Figure 7 It is the lock piece structure schematic view of the utility model;

[0029] Figure 8 It is the structure schematic view of the left clutch block of the utility model;

[0030] Figure 9 It is the structure schematic view of the left connecting rod of the utility model;

[0031] The reference signs are: 1, central locking shell, 2, password wheel assembly, 3, lock core assembly, 4, lock bar, 5, lock piece, 6, push device, 7, left connecting rod, 8, right connecting rod, 9, first left lock catch, 10, first right lock catch, 11, second left lock catch, 12, second right lock catch, 13, left steel wire rope, 14, right steel wire rope, 15, lock piece spring, 16, left top block, 17, left clutch block, 18, right top block, 19, right clutch block, 20, spring, 30, first left lock hook, 40, first right lock hook, 50, lock hook limiting groove, 60, second left lock hook, 70, second right lock hook, 80, adapter block, 90, pressing block, 100, left lock catch bottom shell, 200, right lock catch bottom shell, 300, lock catch spring, 21, wheel shaft, 22, password wheel, 23, code adjusting wheel, 24, password wheel spring, 25, code adjusting switch, 26, partition plate, 27, password wheel spring piece, 31, lock core, 32, lock core sleeve, 33, unlocking inclined surface, 34, lock core pressing piece, 35, lock core piece, 36, lock core partition piece, 51, abutting rod, 52, arc-shaped part, 53, baffle, 54, password wheel giving-up hole, 55, V-shaped protrusion, 56, abutting notch, 71, clutch clamping groove, 72, inclined surface, 73, long strip giving-up hole, 74, spring mounting hole, 75, connecting rod return spring, 801, push rod, 802, limiting rod, 803, through hole, 901, arc-shaped through hole, 101, bottom shell, 102, face plate, 103, inner shell, 104, push device mounting hole, 105, lock core mounting hole, 106, password wheel protruding hole, 107, code adjusting switch protruding hole. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] like Figures 1-9 As shown, a multi-linkage luggage lock includes a central lock housing 1. Inside the central lock housing 1 are a combination wheel assembly 2, a lock cylinder assembly 3, a lock bar 4, a lock plate 5, a pusher 6, a left connecting rod 7, a right connecting rod 8, a first left latch 9, and a first right latch 10. It also includes a second left latch 11 and a second right latch 12. The second left latch 11 is linked to the first left latch 9 via a left steel wire rope 13, and the second right latch 12 is linked to the first right latch 10 via a right steel wire rope 14. The first left latch 9 is connected to the left connecting rod 7, and the first right latch 10 is connected to the right connecting rod 8. One end of the lock bar 4 abuts against the pusher 6, and the other end abuts against the lock plate 5. A lock plate spring 15 is provided at the bottom of the lock plate 5. When unlocking with a combination or a key, the lock plate 5 releases its abutment against the lock bar 4, and pushing the pusher 6 can simultaneously drive the left connecting rod 7 and the right connecting rod 8 to move. The left connecting rod 7 and the right connecting rod 8 move in opposite directions.

[0036] Preferably, when unlocking with a password, upon entering the correct password, the lock plate 5 springs upward under the action of the lock plate spring 15, releasing the resistance to the lock bar 4. Pushing the pusher 6 simultaneously moves the left link 7 and the right link 8. The movement of the left link 7 simultaneously moves the first left latch 9 and the second left latch 11 to unlock, and the movement of the right link 8 simultaneously moves the first right latch 10 and the second right latch 12 to unlock.

[0037] Preferably, the lock cylinder assembly 3 includes a lock cylinder 31 and a lock cylinder sleeve 32. The lock cylinder 31 is disposed inside the lock cylinder sleeve 32. The bottom of the lock cylinder 31 is provided with an unlocking ramp 33. One end of the lock plate 5 is provided with a push rod 51. The end of the push rod 51 is provided with an arc-shaped part 52, which abuts against the unlocking ramp 33. The lock cylinder 31 is provided with a lock cylinder pressure plate 34, multiple lock chips 35 and multiple lock cylinder spacers 36. The lock cylinder spacers 36 are located between two lock chips 35.

[0038] When the key is unlocked, the unlocking slope 33 at the bottom of the lock core 31 can push the abutting rod 51 to sink, the abutting rod 51 sinking drives the lock piece 5 to sink, the lock piece 5 sinking cancels the abutting restriction on the lock bar 4, the pusher 6 can drive the left connecting rod 7 and the right connecting rod 8 to move at the same time, the left connecting rod 7 moving drives the first left lock catch 9 and the second left lock catch 11 to move to unlock at the same time, the right connecting rod 8 moving drives the first right lock catch 10 and the second right lock catch 12 to move to unlock at the same time.

[0039] Preferably, the central control lock shell 1 is further provided with a left abutting block 16, a left clutch block 17, a right abutting block 18 and a right clutch block 19, the left abutting block 16, the left clutch block 17, the right abutting block 18 and the right clutch block 19 are all provided with a spring 20, the left clutch block 17 and the right clutch block 19 are both provided with a clutch block 201, one side of the clutch block 201 is provided with a clutch slope 202, the left connecting rod 7 and the right connecting rod 8 are both provided with a clutch slot 71, one side of the clutch slot 71 is provided with a slope 72, and the clutch block 201 is matched with the clutch slot 71; the left clutch block 17 and the right clutch block 19 can prevent the lock hook from being opened by vibration of the box. The left abutting block 16 and the right abutting block 18 can push the lock hook out after unlocking, and can block the lock catch in the unlocking position after unlocking.

[0040] The locking process is as follows: the first left lock hook 30 is inserted into the lock body from the lock hook hole of the central control lock shell 1, the left abutting block 16 is pushed back to the original position, the limitation on the first left lock catch 9 is cancelled, the first left lock catch 9 moves left under the elastic force of the lock catch spring, and the first left lock catch 9 locks the first left lock hook 30. After the first left lock catch 9 is reset, the left clutch block 17 is also reset under the elastic force of the spring, and the lock catch is blocked, and the locking is completed. The locking of the first right lock hook, the second left lock hook and the second right lock hook is synchronous and linked with the locking of the first left lock hook.

[0041] In the locked state, the left abutting block 16 abuts against the first left lock hook 30, the clutch block 201 on the left clutch block 17 is embedded in the clutch slot 71 on the left connecting rod 7; the right abutting block 18 abuts against the first right lock hook 40, and the clutch block 201 on the right clutch block 19 is embedded in the clutch slot 71 on the right connecting rod 8.

[0042] Preferably, one end of each of the first left lock catch 9, the first right lock catch 10, the second left lock catch 11 and the second right lock catch 12 is provided with a lock hook limiting slot 50, when the lock is locked, the first left lock hook 30 is hooked in the lock hook limiting slot 50 of the first left lock catch 9, the first right lock hook 40 is hooked in the lock hook limiting slot 50 of the first right lock catch 10, the second left lock hook 60 is hooked in the lock hook limiting slot 50 of the second left lock catch 11, and the second right lock hook 70 is hooked in the lock hook limiting slot 50 of the second right lock catch 12.

[0043] Preferably, one end of each of the left connecting rod 7 and the right connecting rod 8 is provided with a long strip clearance hole 73, and the long strip clearance hole 73 on the left connecting rod 7 and the right connecting rod 8 is inclined.

[0044] Preferably, the central control lock shell 1 is further provided with a switching block 80 and a pressing block 90, the pressing block 90 is fixedly connected to the pusher 6, the switching block 80 is rotatably installed on the pressing block 90, the switching block 80 is provided with a push rod 801 and a limiting rod 802 at two ends respectively, and a through hole 803 is arranged in the middle of the switching block 80, a rotating rod is arranged in the through hole 803, the rotating rod is connected to the pressing block 90, two arc-shaped through holes 901 are arranged on the pressing block 90 at intervals, the limiting rod 802 is arranged in the arc-shaped through hole 901, and the push rod 801 is arranged in the long strip clearance hole 73.

[0045] The horizontal pushing of the pusher 6 can simultaneously drive the left connecting rod 7 and the right connecting rod 8 to move, and the movement of the left connecting rod 7 and the right connecting rod 8 can drive the switching block 80 to rotate.

[0046] Preferably, the password wheel assembly 2 comprises an axle 21, a plurality of password wheels 22, a plurality of code adjusting wheels 23, a password wheel spring 24 and a code adjusting switch 25, the code adjusting wheels 23 are arranged in the password wheels 22, the axle 21 is arranged on the code adjusting wheels 23, the password wheel spring 24 is arranged on the axle 21 and abuts against one of the code adjusting wheels 23, the code adjusting switch 25 is arranged at one end of the axle 21, the two ends of the axle 21 are arranged in the partition plate 26 respectively, the password wheel 22 is provided below the password wheel spring 27, and the code adjusting wheel 23 is provided with a V-shaped clearance groove.

[0047] Preferably, a plurality of baffles 53 and a plurality of password wheel clearance holes 54 are arranged on the lock plate 5 at intervals, a V-shaped protrusion 55 is arranged in the middle of each baffle 53, and a abutting gap 56 is arranged on the side edge of the lock plate 5.

[0048] When the password is unlocked, the V-shaped clearance groove on the code adjusting wheel 23 corresponds to the V-shaped protrusion 55, the V-shaped protrusion 55 can be embedded in the V-shaped clearance groove, and the lock plate 5 is popped up to cancel the abutting restriction on the lock bar 4.

[0049] Preferably, the left lock catch bottom shell 100 and the right lock catch bottom shell 200 are further included, the second left lock catch 12 is arranged in the left lock catch bottom shell 100, the second right lock catch 12 is arranged in the right lock catch bottom shell 200, the second left lock catch 11 and the second right lock catch 12 are provided with a lock catch spring 300 at one end, the spring mounting hole 74 is arranged on the left connecting rod 7, and the connecting rod reset spring 75 is arranged in the spring mounting hole 74.

[0050] The central control lock shell 1 comprises a bottom shell 101, a panel 102 and an inner shell 103, the inner shell 103 is fixedly arranged in the cavity of the bottom shell 101, the password wheel assembly 2 is arranged on the inner shell 103, the panel 102 covers the bottom shell 101 and is fixed by screws, the panel 102 is provided with a pusher mounting hole 104, a lock cylinder mounting hole 105 and a password wheel extension hole 106, and the bottom shell 101 is provided with a code adjusting switch extension hole 107.

[0051] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-link luggage lock, comprising a central control lock shell, a password wheel assembly, a lock cylinder assembly, a lock bar, a lock piece, a push device, a left connecting rod, a right connecting rod, a first left lock catch and a first right lock catch are arranged in the central control lock shell, characterized in that, Second left lock catch and second right lock catch are further included, the second left lock catch is linked with the first left lock catch through a left steel wire rope, the second right lock catch is linked with the first right lock catch through a right steel wire rope, the first left lock catch is connected with the left connecting rod, the first right lock catch is connected with the right connecting rod, one end of the lock bar abuts against the pusher, the other end abuts against the lock piece, the bottom of the lock piece is provided with a lock piece spring, when the lock piece is unlocked by a password or a key, the lock piece cancels the abutment against the lock bar, and the pusher can drive the left connecting rod and the right connecting rod to move simultaneously.

2. The multi-association case lock according to claim 1, wherein, When the lock piece is unlocked by a password, the lock piece is popped up by the lock piece spring to cancel the abutment against the lock bar, the pusher can drive the left connecting rod and the right connecting rod to move simultaneously, the left connecting rod moves to drive the first left lock catch and the second left lock catch to move and unlock, and the right connecting rod moves to drive the first right lock catch and the second right lock catch to move and unlock.

3. The multi-association case lock of claim 1, wherein, The lock cylinder assembly includes a lock cylinder and a lock cylinder sleeve, the lock cylinder is arranged in the lock cylinder sleeve, the bottom of the lock cylinder is provided with an unlocking slope, one end of the lock piece is provided with an abutment rod, and the end of the abutment rod is provided with an arc-shaped part. When the lock piece is unlocked by a key, the lock cylinder is rotated by the key, the unlocking slope at the bottom of the lock cylinder can push the abutment rod to sink, the abutment rod sinking drives the lock piece to sink, the lock piece sinking cancels the abutment against the lock bar, the pusher can drive the left connecting rod and the right connecting rod to move simultaneously, the left connecting rod moves to drive the first left lock catch and the second left lock catch to move and unlock, and the right connecting rod moves to drive the first right lock catch and the second right lock catch to move and unlock.

4. The multi-association case lock of claim 1, wherein, The middle control lock shell is further provided with a left top block, a left clutch block, a right top block and a right clutch block, springs are arranged on the left top block, the left clutch block, the right top block and the right clutch block, clutch blocks are arranged on the left clutch block and the right clutch block, one side of the clutch block is provided with a clutch slope, clutch slots are arranged on the left connecting rod and the right connecting rod, and one side of the clutch slot is provided with a slope. In the locked state, the left top block abuts against the first left lock hook, the clutch block on the left clutch block is embedded in the clutch slot on the left connecting rod, the right top block abuts against the first right lock hook, and the clutch block on the right clutch block is embedded in the clutch slot on the right connecting rod.

5. The multi-association case lock according to claim 4, wherein, One end of the first left lock catch, the first right lock catch, the second left lock catch and the second right lock catch is provided with a lock hook limiting slot, in the locked state, the first left lock hook is hooked in the lock hook limiting slot of the first left lock catch, the first right lock hook is hooked in the lock hook limiting slot of the first right lock catch, the second left lock hook is hooked in the lock hook limiting slot of the second left lock catch, and the second right lock hook is hooked in the lock hook limiting slot of the second right lock catch.

6. The multi-association case lock of claim 1, wherein, One end of the left connecting rod and the right connecting rod is provided with a long strip clearance hole, and the long strip clearance hole on the left connecting rod and the right connecting rod is arranged obliquely.

7. The multi-association case lock of claim 6, wherein, The central control lock shell is internally provided with a switching block and a pressing block, the pressing block is fixedly connected to the pusher, the switching block is rotatably installed on the pressing block, both ends of the switching block are respectively provided with a push rod and a limiting rod, the middle part of the switching block is provided with a through hole, a rotating rod is arranged in the through hole, the rotating rod is connected to the pressing block, two arc-shaped through holes are arranged on the pressing block in a spaced manner, the limiting rod is arranged in the arc-shaped through hole, and the push rod is arranged in the long slot. The horizontal pushing of the pusher can simultaneously drive the left connecting rod and the right connecting rod to move, and the movement of the left connecting rod and the right connecting rod can drive the switching block to rotate.

8. The multi-association case lock of claim 1, wherein, The password wheel assembly comprises an axle, a plurality of password wheels, a plurality of code adjusting wheels, a password wheel spring and a code adjusting switch, the code adjusting wheels are arranged in the password wheels, the axle is arranged on the code adjusting wheels, the password wheel spring is arranged on the axle and abuts against one of the code adjusting wheels, the code adjusting switch is arranged at one end of the axle, both ends of the axle are arranged in the partition plate, a password wheel spring sheet is arranged below the password wheels, and V-shaped accommodation grooves are arranged on the code adjusting wheels.

9. The multi-association case lock of claim 8, wherein, A plurality of baffles and a plurality of password wheel accommodation holes are arranged on the lock plate in a spaced manner, V-shaped protrusions are arranged in the middle parts of the baffles, and a abutting gap is arranged on one side edge of the lock plate. When the password is unlocked, the V-shaped accommodation grooves on the code adjusting wheels correspond to the V-shaped protrusions, the V-shaped protrusions can be embedded in the V-shaped accommodation grooves, and the lock plate is upwardly popped to cancel the abutting restriction on the lock bar.

10. The multi-association case lock of claim 1, wherein, The second left lock catch is arranged in the left lock catch bottom shell, the second right lock catch is arranged in the right lock catch bottom shell, one end of the second left lock catch and the second right lock catch is provided with a lock catch spring, a spring mounting hole is arranged on the left connecting rod, and a connecting rod return spring is arranged in the spring mounting hole. The central control lock shell comprises a bottom shell, a panel and an inner shell, the inner shell is fixedly arranged in the cavity of the bottom shell, the password wheel assembly is arranged on the inner shell, the panel covers the bottom shell and is fixed by screws, the panel is provided with a pusher mounting hole, a lock cylinder mounting hole and a password wheel extension hole, and the bottom shell is provided with a code adjusting switch extension hole.

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