CN220014801U

CN220014801U - Lock body

Info

Publication number: CN220014801U
Application number: CN202320949412.4U
Authority: CN
Inventors: 吴群
Original assignee: Wuyi Baojiali Smart Home Co ltd
Current assignee: Wuyi Baojiali Smart Home Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-11-14
Anticipated expiration: 2033-04-25

Abstract

The utility model belongs to the technical field of door locks, in particular to a lock body. The lock comprises a lock shell, wherein a handle hole and a lock core hole are formed in the lock shell, a lock tongue component and a driving mechanism for driving the lock tongue component to move are arranged in the lock shell, the driving mechanism comprises an unlocking piece, the middle part of the unlocking piece is rotatably arranged on the lock shell, the unlocking piece is connected with the lock tongue component, and the unlocking piece can be controlled to extend or retract through forward rotation or reverse rotation; a driving piece and an inclined tongue poking piece are arranged at the handle hole; the end part of the driving piece is rotationally connected with a first transmission piece, the other end of the first transmission piece is connected with an unlocking piece, and the rotating driving piece can drive the unlocking piece to rotate through the first transmission piece, so that the movement of the lock tongue assembly is controlled; the end part of the inclined tongue poking piece is rotationally connected with a second transmission piece, the other end of the second transmission piece is provided with a strip-shaped hole, the unlocking piece is provided with a bayonet lock, and the bayonet lock is arranged in the strip-shaped hole; the lock body is internally provided with a bevel tongue, the poking part of the bevel tongue poking piece is abutted with the bevel tongue, and the bevel tongue poking piece can drive the bevel tongue to retract inwards when rotating.

Description

Lock body

Technical Field

The utility model belongs to the technical field of door locks, in particular to a lock body.

Background

The lock body is installed on the door and is used for locking the door so as to prevent other people from opening the door, every family can use, at present, the market also has very many lock bodies including electronic locks, mechanical locks and the like, but the internal structure is big and small different, the main structure includes the lock shell, the spring bolt that sets up in the lock shell and the mechanical structure that is used for driving the spring bolt to remove, the mechanical structure adopts the transmission mode of connecting rod, the transmission mode of connecting rod can be more laborious when unblanking, even electronic locks, also can accomplish unblanking through the indirect mechanical structure transmission of driving motor to the spring bolt again, if mechanical structure transmission is more laborious, the burden of driving motor can also be increased if electronic locks, the power loss is also big, therefore many electronic locks need frequent charging. There is a need for a lock body that is lighter and more convenient to unlock.

Disclosure of Invention

The utility model aims to provide a lock body which is simple in structure, lighter and more convenient to unlock.

The purpose of the utility model is realized in the following way:

the lock body comprises a lock shell, a handle hole for installing a handle and a lock cylinder hole for installing a lock cylinder are formed in the lock shell, a lock tongue component and a driving mechanism for driving the lock tongue component to move are arranged in the lock shell, the driving mechanism comprises an unlocking piece rotationally arranged in the lock body, the middle part of the unlocking piece is rotationally arranged on the lock shell, a driving pin is arranged on the unlocking piece, a driving groove is formed in the lock tongue component, and the driving pin is clamped in the driving groove, and can control the extension or retraction of the unlocking piece and the controllable lock tongue component through forward rotation or reverse rotation;

a driving piece and an inclined tongue poking piece are arranged at the handle hole; the driving piece comprises a first clutch hole and a first connecting part, the end part of the first connecting part is rotationally connected with a first transmission piece, the other end of the first transmission piece is connected with an unlocking piece, and the unlocking piece can be driven to rotate by rotating the driving piece through the first transmission piece, so that the movement of the lock tongue assembly is controlled; the oblique tongue shifting piece comprises a second clutch hole, a shifting part and a second connecting part, the end part of the second connecting part is rotationally connected with a second transmission part, the other end of the second transmission part is provided with a strip-shaped hole, the unlocking part is provided with a bayonet lock, and the bayonet lock is arranged in the strip-shaped hole;

the lock body is internally provided with a bevel tongue, the poking part of the bevel tongue poking piece is abutted with the bevel tongue, and the bevel tongue poking piece can drive the bevel tongue to retract when rotating.

The utility model further provides an unlocking member which has two states, namely an unlocking state and a locking state; when the unlocking piece is in an unlocking state, the driving pin drives the lock tongue assembly to retract, at the moment, the driving piece is in the unlocking state, and the bayonet lock is positioned on the upper side of the strip-shaped hole; when the unlocking piece is switched to a locking state, the unlocking piece rotates around the middle of the unlocking piece, the driving pin moves and drives the lock tongue assembly to extend, the driving piece is in the locking state, and the clamping pin moves to the lower side of the strip-shaped hole.

According to the utility model, the first transmission piece and the second transmission piece are respectively positioned at the left side and the right side of the unlocking piece, the lower ends of the first transmission piece and the second transmission piece are positioned at the left side and the right side of the lock cylinder hole, a lock cylinder can be arranged in the lock cylinder hole, the lock cylinder comprises a rotatable lock cylinder shifting piece, and the lower end part of the first transmission piece or the second transmission piece can be pushed by rotating the lock cylinder shifting piece.

The lock body is further internally provided with the sky rod pull hook and the ground rod pull hook, the outer ends of the sky rod pull hook and the ground rod pull hook are respectively exposed out of the upper side and the lower side of the lock body, the inner ends of the sky rod pull hook and the ground rod pull hook are respectively connected with the left side and the right side of the unlocking piece, and the unlocking piece can drive the sky rod pull hook and the ground rod pull hook to synchronously move outwards or inwards when rotating.

In the utility model, the upper side and the lower side of the lock tongue assembly are also provided with the auxiliary lock tongues, and a transmission sheet is arranged between the two auxiliary lock tongues and the top rod pull hook and the ground rod pull hook respectively, and the top rod pull hook and the ground rod pull hook can drive the auxiliary lock tongues to transversely move through the transmission sheet when moving up and down.

The unlocking piece comprises a rotating part, a driving pin, a bayonet lock and a connecting pin; the rotation part is rotationally connected to the lock shell, the driving pin is clamped in the driving groove and is connected with the lock tongue assembly, the clamping pin is arranged in a strip-shaped hole of the second transmission piece, the inner end of the ground rod pull hook is connected with the clamping pin, the connecting pin is connected with the first transmission piece, and the inner end of the sky rod pull hook is connected to the connecting pin.

The lock body is internally provided with the safety lock tongue, the safety lock tongue comprises a safety lock head and a connecting piece connected with the safety lock head, a pushing groove is formed in the connecting piece, a safety knob is arranged on the side edge of the pushing groove, a safety pulling piece extends out of the safety knob, and the safety lock tongue can be driven to move left and right by rotating the safety knob.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

the utility model relates to a lock body, which structurally comprises a lock shell, wherein a handle hole and a lock cylinder hole are formed in the lock shell, the handle hole can be used for inserting a handle shaft, and the lock cylinder hole can be used for installing a lock cylinder; the inside of the lock shell is also provided with a lock tongue assembly and a driving mechanism for driving the lock tongue assembly to move, and the lock tongue assembly can be driven to move through the driving mechanism so as to complete unlocking or locking; specifically, the actuating mechanism includes an unlocking member disposed in the lock casing, a driving pin protrudes from one side of the unlocking member, a driving slot is formed in the lock tongue assembly, the driving pin is clamped in the driving slot, when the unlocking member rotates around the middle of the unlocking member, the driving pin on the unlocking member can do circular arc motion around the rotating part, the driving slot is larger than the driving pin, and the circular arc motion of the driving pin can drive the transverse reciprocating motion of the lock tongue assembly, so as to control the extension or retraction of the lock tongue assembly. The lock body is also internally provided with a driving piece and an inclined tongue poking piece which can drive the unlocking piece to rotate, the driving piece and the inclined tongue poking piece are respectively provided with a first clutch hole and a second clutch hole, the driving piece is connected with the unlocking piece through a first transmission piece, the inclined tongue poking piece is connected with the unlocking piece through a second transmission piece, and when the handle is rotated, square steel on the handle can drive the driving piece and/or the inclined tongue poking piece to rotate.

The utility model relates to a double-quick lock body, namely a handle is used for pressing an unlocking tongue component to unlock an inclined tongue, the handle is used for lifting and closing the unlocking tongue component, and a first clutch hole and a second clutch hole are used for rotating the handle in a state that a driving piece or an inclined tongue poking piece cannot be driven to move in the lifting or pressing process of the handle. Specifically, when the lock body is in a locking state, the lock tongue component and the inclined tongue extend out, the handle is pressed down at the moment, the handle can drive the driving piece and the inclined tongue plectrum to rotate simultaneously, the unlocking piece is pressed down at the lower end of a first transmission piece connected with the driving piece, the unlocking piece is lifted by a second transmission piece connected with the inclined tongue plectrum, the unlocking piece is synchronously driven by the first transmission piece and the second transmission piece to rotate to complete unlocking of the lock tongue component, and the inclined tongue plectrum is driven to unlock when rotating; when the handle is pressed down again, the handle only drives the latch pulling piece to rotate, the latch pulling piece drives the second transmission piece to move upwards, and when the second transmission piece moves upwards, the bayonet lock moves from the upper end of the strip-shaped hole to the lower end of the strip-shaped hole, and in the process, the second transmission piece does not drive the unlocking piece to rotate; the handle cannot drive the driving piece to rotate, and because the driving piece is in an unlocking state, the handle can only rotate in the idle stroke of the first clutch hole by pressing down the handle. When the handle is lifted in the unlocking state, the handle can drive the driving piece to rotate, so that the first transmission piece is driven to move upwards, the first transmission piece drives the unlocking piece to rotate to complete locking of the lock tongue assembly, the inclined tongue plectrum is in a clutch state, when the handle is lifted upwards, the inclined tongue plectrum cannot follow rotation, and when the handle is lifted again, the handle cannot drive the driving piece and the inclined tongue plectrum to move, and the driving piece and the inclined tongue plectrum are in the clutch state, so that the lock body does not move.

In short, when the lock body is in a locking state, the handle can be pressed down to synchronously drive the lock tongue assembly and the inclined tongue to move to unlock through the driving piece and the inclined tongue poking piece, and the upper handle cannot drive the driving piece and the inclined tongue poking piece to rotate; when the lock is unlocked, the handle can be pressed down to unlock the inclined tongue through the inclined tongue poking piece, and the handle can be lifted up to lock the lock tongue assembly through the driving piece.

Drawings

Fig. 1 is a schematic structural view of the lock state of the present utility model.

Fig. 2 is a schematic view of the structure of the unlocking state of the present utility model.

Fig. 3 is a schematic structural view of a lock case according to the present utility model.

Fig. 4 is a schematic view of the structure of the internal driving mechanism of the present utility model.

Fig. 5 is a schematic view of the structure of the inside in the unlocking state of the present utility model.

Fig. 6 is a schematic view of the structure of the inside of the present utility model in the closed state.

Fig. 7 is a schematic structural view of the driving plate, the first transmission member and the unlocking member in the present utility model.

Fig. 8 is a schematic structural view of the latch shifting plate, the second transmission member and the unlocking member in the present utility model.

Fig. 9 is a schematic structural view of an unlocking member in the present utility model.

Fig. 10 is a schematic view of the latch bolt assembly of the present utility model.

Fig. 11 is a schematic view of the structure of the security bolt of the present utility model.

The meaning indicated by the reference numerals in the figures:

1-a lock shell; 2-a handle; 3-a handle hole; 4-a lock cylinder; 5-a lock cylinder hole; 6-a latch bolt assembly; 7, unlocking the lock; 8-driving pins; 9-a driving groove; 10-driving piece; 11-a tongue pulling piece; 12-a first clutch aperture;

13-a first connection; 14-a first transmission member; 15-a second clutch aperture; 16-a toggle part; 17-a second connection; 18-a second transmission member; 19-bar-shaped holes; 20-bayonet lock; 21-a tongue; 22-lock core pulling piece; 23-a day pole pull hook; 24-a ground rod pull hook; 25-auxiliary bolt; 26-a driving plate; 27-connecting pins; 28-safety lock tongue;

29-a safety lock; 30-connecting piece; 31-pushing groove; 32-a safety knob; 33-an insurance plectrum;

34-a rotating part.

Detailed Description

The utility model is further described with reference to the following specific examples:

the lock body comprises a lock shell 1, a handle hole 3 for installing a handle 2 and a lock cylinder hole 5 for installing a lock cylinder 4 are formed in the lock shell 1, a lock tongue assembly 6 and a driving mechanism for driving the lock tongue assembly 6 to move are arranged in the lock shell 1, the driving mechanism comprises an unlocking piece 7 rotatably arranged in the lock shell 1, the middle part of the unlocking piece 7 is rotatably arranged on the lock shell 1, a driving pin 8 is arranged on the unlocking piece 7, a driving groove 9 is formed in the lock tongue assembly 6, the driving pin 8 is clamped in the driving groove 9, and the unlocking piece 7 and the controllable lock tongue assembly 6 can be stretched out or retracted through forward rotation or reverse rotation;

a driving piece 10 and a bevel tongue poking piece 11 are arranged at the handle hole 3; the driving piece 10 comprises a first clutch hole 12 and a first connecting part 13, the end part of the first connecting part 13 is rotationally connected with a first transmission piece 14, the other end of the first transmission piece 14 is connected with the unlocking piece 7, and the unlocking piece 7 can be driven to rotate by rotating the driving piece 10 through the first transmission piece 14, so that the movement of the lock tongue assembly 6 is controlled; the oblique tongue poking piece 11 comprises a second clutch hole 15, a poking part 16 and a second connecting part 17, the end part of the second connecting part 17 is rotatably connected with a second transmission part 18, the other end of the second transmission part 18 is provided with a strip-shaped hole 19, the unlocking part 7 is provided with a bayonet lock 20, and the bayonet lock 20 is arranged in the strip-shaped hole 19;

the lock case 1 is internally provided with a bevel tongue 21, the poking part 16 of the bevel tongue poking piece 11 is abutted against the bevel tongue 21, and the bevel tongue poking piece 11 can drive the bevel tongue 21 to retract when rotating.

The utility model relates to a lock body, which structurally comprises a lock shell 1, wherein a handle hole 3 and a lock cylinder hole 5 are formed in the lock shell 1, the handle hole 3 can be used for inserting a handle 2 shaft, and the lock cylinder hole 5 can be used for installing a lock cylinder 4; the inside of the lock shell 1 is also provided with a lock tongue assembly 6 and a driving mechanism for driving the lock tongue assembly 6 to move, and the lock tongue assembly 6 can be driven to move through the driving mechanism so as to complete unlocking or locking; specifically, the driving mechanism includes an unlocking member 7 disposed in the lock case 1, a driving pin 8 protrudes from one side of the unlocking member 7, a driving slot 9 is formed on the lock tongue component 6, the driving pin 8 is clamped in the driving slot 9, when the unlocking member 7 rotates around the middle of the unlocking member 7, the driving pin 8 on the unlocking member 7 moves in an arc manner around the rotating portion 34, the driving slot 9 is larger than the driving pin 8, and the arc movement of the driving pin 8 can drive the transverse reciprocating movement of the lock tongue component 6, so as to control the extension or retraction of the lock tongue component 6. The lock shell 1 is also internally provided with a driving piece 10 and an inclined tongue poking piece 11 which can drive the unlocking piece 7 to rotate, a first clutch hole 12 and a second clutch hole 15 are respectively formed on the driving piece 10 and the inclined tongue poking piece 11, the driving piece 10 is connected with the unlocking piece 7 through a first transmission piece 14, the inclined tongue poking piece 11 is connected with the unlocking piece 7 through a second transmission piece 18, and when the handle 2 is rotated, square steel on the handle 2 can drive the driving piece 10 and/or the inclined tongue poking piece 11 to rotate.

The utility model relates to a double-quick lock body, namely a handle 2 presses down an unlocking tongue component 6 to open an inclined tongue 21, the handle 2 lifts the unlocking tongue component 6, and a first clutch hole 12 and a second clutch hole 15 are used for rotating the handle 2 in a state that a driving piece 10 or an inclined tongue poking piece 11 cannot be driven to move in the lifting or pressing process of the handle 2. Specifically, when the lock shell 1 is in a locking state, the lock tongue assembly 6 and the inclined tongue 21 extend out, at the moment, the handle 2 can drive the driving piece 10 and the inclined tongue poking piece 11 to rotate simultaneously, the unlocking piece 7 is pressed down by the lower end of the first transmission piece 14 connected with the driving piece 10, the unlocking piece 7 is lifted by the second transmission piece 18 connected with the inclined tongue poking piece 11, the unlocking piece 7 is synchronously driven by the first transmission piece 14 and the second transmission piece 18 to rotate to complete unlocking of the lock tongue assembly 6, and the inclined tongue 21 is driven to unlock when the inclined tongue poking piece 11 rotates; namely, when the door lock is in a locking state, the handle 2 is pressed down to drive the driving piece 10 and the inclined tongue poking piece 11 to rotate together, so that unlocking of the lock tongue assembly 6 and the inclined tongue 21 is completed, the handle 2 is loosened, the handle 2 is reset, the inclined tongue 21 is reset and drives the inclined tongue poking piece 11 to reset, the second transmission piece 18 is also moved downwards to reset, the bayonet lock 20 is positioned at the upper end of the strip-shaped hole 19, the driving piece 10 is moved to an unlocking state, the lock shell 1 is in an unlocking state, when the handle 2 is pressed down again, the handle 2 only can drive the inclined tongue poking piece 11 to rotate, the inclined tongue poking piece 11 drives the second transmission piece 18 to move upwards, and when the second transmission piece 18 moves upwards, the bayonet lock 20 is moved to the lower end of the strip-shaped hole 19 from the upper end of the strip-shaped hole 19, and in the process, the second transmission piece 18 cannot drive the unlocking piece 7 to rotate; the handle 2 cannot drive the driving piece 10 to rotate, because the driving piece 10 is in an unlocking state, and the handle 2 is pressed down so that the handle 2 can only rotate in the idle stroke of the first clutch hole 12. When the handle 2 is lifted in the unlocking state, the handle 2 can drive the driving piece 10 to rotate, so that the first transmission piece 14 is driven to move upwards, the first transmission piece 14 drives the unlocking piece 7 to rotate to complete locking of the lock tongue assembly 6, the inclined tongue poking piece 11 is in the clutch state, when the handle 2 is lifted, the inclined tongue poking piece 11 cannot follow rotation, when the handle 2 is lifted again at the moment, the handle 2 cannot drive the driving piece 10 and the inclined tongue poking piece 11 to move, and both are in the clutch state, and the inside of the lock case 1 does not move.

In short, when the lock shell 1 is in a locking state, the handle 2 can be pressed down to synchronously drive the lock tongue assembly 6 and the inclined tongue 21 to move through the driving piece 10 and the inclined tongue poking piece 11 so as to complete unlocking, and the handle 2 can not drive the driving piece 10 and the inclined tongue poking piece 11 to rotate; in the unlocking state, the handle 2 is pressed down to unlock the inclined tongue 21 through the inclined tongue poking piece 11, and the handle 2 is lifted up to lock the lock tongue assembly 6 through the driving piece 10.

In a preferred embodiment of the present utility model, the unlocking member 7 has two states, namely an unlocking state and a locking state; when the unlocking piece 7 is in an unlocking state, the driving pin 8 drives the lock tongue assembly 6 to retract, the driving piece 10 is in the unlocking state, and the bayonet 20 is positioned on the upper side of the strip-shaped hole 19; when the unlocking piece 7 is switched to a locking state, the unlocking piece 7 rotates around the middle of the unlocking piece 7, the driving pin 8 moves and drives the lock tongue assembly 6 to extend, the driving piece 10 is in the locking state at the moment, and the bayonet lock 20 moves to the lower side of the strip-shaped hole 19.

In a preferred embodiment of the present utility model, the first transmission member 14 and the second transmission member 18 are respectively located at the left side and the right side of the unlocking member 7, and the lower ends of the first transmission member 14 and the second transmission member 18 are located at the left side and the right side of the lock cylinder hole 5, the lock cylinder 4 can be installed in the lock cylinder hole 5, the lock cylinder 4 includes a rotatable lock cylinder pulling piece 22, and the lower end of the first transmission member 14 or the second transmission member 18 can be pushed by rotating the lock cylinder pulling piece 22. The forward or reverse rotation lock cylinder 4 can respectively push the first transmission piece 14 and the second transmission piece 18; when the lock shell 1 is in a locking state, the lock cylinder 4 is rotated to enable the lock cylinder pulling piece 22 to lean against the second transmission piece 18 and push the second transmission piece 18 to move upwards, and the second transmission piece 18 drives the unlocking piece 7 and the inclined tongue pulling piece 11 to rotate, so that unlocking of the lock tongue assembly 6 and the inclined tongue 21 is completed; when the lock shell 1 is in an unlocking state, the lock cylinder 4 is rotated to enable the lock cylinder pulling piece 22 to lean against the first transmission piece 14 and push one transmission piece to move upwards, and the first transmission piece 14 drives the unlocking piece 7 to rotate, so that locking of the lock tongue assembly 6 is completed.

According to a preferred scheme of the utility model, a top rod pull hook 23 and a ground rod pull hook 24 are further arranged in the lock shell 1, the outer ends of the top rod pull hook 23 and the ground rod pull hook 24 are respectively exposed out of the upper side and the lower side of the lock shell 1, the inner ends of the top rod pull hook and the ground rod pull hook are respectively connected to the left side and the right side of an unlocking piece 7, and the unlocking piece 7 can drive the top rod pull hook 23 and the ground rod pull hook to synchronously move outwards or inwards when rotating.

In a preferred scheme of the utility model, the upper side and the lower side of the lock tongue assembly 6 are also provided with auxiliary lock tongues 25, a transmission sheet 26 is arranged between the two auxiliary lock tongues 25 and the top rod pull hook 23 and the ground rod pull hook 24 respectively, and the auxiliary lock tongues 25 can be driven to transversely move by the transmission sheet 26 when the top rod pull hook 23 and the ground rod pull hook 24 move up and down.

In a preferred embodiment of the present utility model, the unlocking member 7 includes a rotating portion 34, a driving pin 8, a locking pin 20, and a connecting pin 27; the rotating part 34 is rotatably connected to the lock case 1, the driving pin 8 is clamped in the driving groove 9 and is connected with the lock tongue assembly 6, the clamping pin 20 is arranged in the bar-shaped hole 19 of the second transmission member 18, the inner end of the ground rod pull hook 24 is connected with the clamping pin 20, the connecting pin 27 is connected with the first transmission member 14, and the inner end of the sky rod pull hook 23 is connected to the connecting pin 27.

According to a preferred scheme of the utility model, a safety lock tongue 28 is arranged in the lock shell 1, the safety lock tongue 28 comprises a safety lock head 29 and a connecting piece 30 connected with the safety lock head 29, a pushing groove 31 is formed in the connecting piece 30, a safety knob 32 is arranged on the side edge of the pushing groove 31, a safety pulling piece 33 extends out of the safety knob 32, and the safety lock tongue 28 can be driven to move left and right by rotating the safety knob 32.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a lock body, includes lock shell (1), has seted up handle hole (3) that are used for installing handle (2) and is used for installing lock core hole (5) of lock core (4) on lock shell (1), its characterized in that: the novel lock comprises a lock shell (1), wherein a lock tongue assembly (6) and a driving mechanism for driving the lock tongue assembly (6) to move are arranged inside the lock shell (1), the driving mechanism comprises an unlocking piece (7) which is rotatably arranged in the lock shell (1), the middle part of the unlocking piece (7) is rotatably arranged on the lock shell (1), a driving pin (8) is arranged on the unlocking piece (7), a driving groove (9) is formed in the lock tongue assembly (6), the driving pin (8) is clamped in the driving groove (9), and the unlocking piece (7) and the extension or the adduction of the lock tongue assembly (6) can be controlled through forward rotation or reverse rotation;

a driving piece (10) and a bevel tongue poking piece (11) are arranged at the handle hole (3); the driving piece (10) comprises a first clutch hole (12) and a first connecting part (13), the end part of the first connecting part (13) is rotationally connected with a first transmission piece (14), the other end of the first transmission piece (14) is connected with the unlocking piece (7), and the unlocking piece (7) can be driven to rotate by rotating the driving piece (10) through the first transmission piece (14), so that the movement of the lock tongue assembly (6) is controlled; the oblique tongue poking piece (11) comprises a second clutch hole (15), a poking part (16) and a second connecting part (17), the end part of the second connecting part (17) is rotationally connected with a second transmission part (18), the other end of the second transmission part (18) is provided with a strip-shaped hole (19), the unlocking part (7) is provided with a bayonet lock (20), and the bayonet lock (20) is arranged in the strip-shaped hole (19);

the lock is characterized in that an inclined tongue (21) is arranged in the lock shell (1), a stirring part (16) of the inclined tongue stirring piece (11) is abutted against the inclined tongue (21), and the inclined tongue stirring piece (11) can drive the inclined tongue (21) to be retracted when rotating.

2. A lock according to claim 1, wherein: the unlocking piece (7) has two states, namely an unlocking state and a locking state; when the unlocking piece (7) is in an unlocking state, the driving pin (8) drives the lock tongue assembly (6) to retract, the driving piece (10) is in the unlocking state, and the bayonet lock (20) is positioned on the upper side of the strip-shaped hole (19); when the unlocking piece (7) is switched to a locking state, the unlocking piece (7) rotates around the middle part of the unlocking piece, the driving pin (8) moves and drives the lock tongue assembly (6) to extend, the driving piece (10) is in the locking state at the moment, and the bayonet lock (20) moves to the lower side of the strip-shaped hole (19).

3. A lock according to claim 2, wherein: the first transmission piece (14) and the second transmission piece (18) are respectively positioned at the left side and the right side of the unlocking piece (7), the lower ends of the first transmission piece (14) and the second transmission piece (18) are positioned at the left side and the right side of the lock cylinder hole (5), the lock cylinder (4) can be arranged in the lock cylinder hole (5), the lock cylinder (4) comprises a rotatable lock cylinder shifting piece (22), and the lower end part of the first transmission piece (14) or the lower end part of the second transmission piece (18) can be pushed by rotating the lock cylinder shifting piece (22).

4. A lock according to claim 3, wherein: the lock is characterized in that a top rod pull hook (23) and a ground rod pull hook (24) are further arranged in the lock shell (1), the outer ends of the top rod pull hook (23) and the ground rod pull hook (24) are respectively exposed out of the upper side and the lower side of the lock shell (1), the inner ends of the top rod pull hook are respectively connected to the left side and the right side of an unlocking piece (7), and the unlocking piece (7) can drive the top rod pull hook (23) and the ground rod pull hook to synchronously move outwards or inwards when rotating.

5. A lock body according to any one of claims 1 to 4, wherein: the upper side and the lower side of the lock tongue assembly (6) are also provided with auxiliary lock tongues (25), a transmission sheet (26) is arranged between the two auxiliary lock tongues (25) and the top rod pull hook (23) and the ground rod pull hook (24), and the auxiliary lock tongues (25) can be driven to move transversely through the transmission sheet (26) when the top rod pull hook (23) and the ground rod pull hook (24) move up and down.

6. A lock according to claim 5, wherein: the unlocking piece (7) comprises a rotating part (34), a driving pin (8), a clamping pin (20) and a connecting pin (27); the rotary part (34) is rotationally connected to the lock shell (1), the driving pin (8) is clamped in the driving groove (9) and is connected with the lock tongue assembly (6), the clamping pin (20) is arranged in a strip-shaped hole (19) of the second transmission piece (18), the inner end of the ground rod pull hook (24) is connected with the clamping pin (20), the connecting pin (27) is connected with the first transmission piece (14), and the inner end of the sky rod pull hook (23) is connected to the connecting pin (27).

7. A lock according to claim 6, wherein: the lock is characterized in that a safety lock tongue (28) is arranged in the lock shell (1), the safety lock tongue (28) comprises a safety lock head (29) and a connecting piece (30) connected with the safety lock head (29), a pushing groove (31) is formed in the connecting piece (30), a safety knob (32) is arranged on the side edge of the pushing groove (31), a safety pulling piece (33) extends out of the safety knob (32), and the safety lock tongue (28) can be driven to move left and right by rotating the safety knob (32).