Lock body

Abstract

The present application discloses a lock body, including: a lock shell; an inclined tongue assembly; a main lock tongue assembly; an inclined tongue pick; a square steel pick block, which is equipped with a first gear and has a driving block extending into an arc groove, and the driving block cooperates with one side of the arc groove; a main lock tongue toggle tooth, when the square steel pick block rotates around a first direction, the first gear drives the main lock tongue toggle tooth to rotate, the main lock tongue toggle tooth drives the main lock tongue toggle rod to rotate, and the main lock tongue toggle rod drives the main lock tongue assembly to retract into the lock shell; a main lock tongue pick, which drives the main lock tongue toggle rod to rotate synchronously; a lock head pick, which has a fourth matching part, a fifth matching part and a sixth matching part, the fourth matching part cooperates with the inclined tongue pick, and the fifth matching part cooperates with the second working part; a lock core, which is arranged on the lock shell. The lock body of the present application is a mechanical lock body, and no motor is arranged in the lock body. The unlocking and locking operations are all coordinated by the mechanical structure, and the whole structure is simple and reliable; the square steel pick block and the main lock tongue toggle tooth are driven by gears, which is labor-saving and silent.

Description

Technical Field

[0001] The invention relates to the field of locks, and in particular to a lock body. Background Art

[0002] Publication number: CN 201850873 The patent document of U discloses an automatic flip hook bolt anti-theft lock with easy unlocking and simple lock control, which includes seven parts: a lock shell assembly, a slant tongue assembly, a swing arm assembly, a lock core assembly, a lock bolt and its arrangement and connection assembly, a toggle fork assembly and a lock cover assembly: the lock shell assembly is provided with an independent internal control lock mechanism, the large torsion spring sliding bearing surface of the swing arm tooth piece is tangent to the middle section cylindrical surface of the large torsion spring vertical folding hook, the tip limit working surface is engaged with the swing fork angular boss in the lock bolt retracted position and disengaged in the lock bolt extension interval, the two ends of the swing arm push pin are respectively slidably matched with the "ㄑ" shaped groove gap of the anti-locking strip and the straight push plate, the tooth fork and the fan-shaped tooth part of the swing arm tooth piece are coaxial and mesh or disengage with the lock core gear in a front-to-back sequence, the "L" shaped convex sliding feet of the upper and lower lock bolt hook fork sections in the lock bolt are respectively corresponding to the "b" shaped sliding groove gaps of the lock shell, and the middle section cylindrical surface of the straight push plate tail pin is tangent to the end cylindrical surface of the long arm of the long torsion spring. The structure of the above-mentioned mechanical lock body is relatively complicated. The market needs a mechanical lock body with a simple structure and reliable function. Summary of the invention

[0003] In view of the above problems, the present invention provides a lock body.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A lock body, comprising:

[0006] Lock case;

[0007] A latch bolt assembly, arranged on the lock housing;

[0008] A main lock tongue assembly is slidably disposed on the lock housing;

[0009] A main lock tongue lever is rotatably arranged on the lock housing, the main lock tongue lever is used to cooperate with the main lock tongue assembly of the lock body to drive the main lock tongue assembly to extend or retract into the lock housing, and the main lock tongue lever has a first pressure-bearing portion and a second pressure-bearing portion;

[0010] A latch blade is rotatably disposed on the lock housing, the latch blade having a first matching portion, the first matching portion being used to match with the latch assembly to retract the latch assembly onto the lock housing or unlock the latch assembly, the latch blade having an arc-shaped groove;

[0011] A square steel shift block, the square steel shift block is rotatably arranged on the lock housing, a first gear is installed on the square steel shift block, the square steel shift block has a driving block extending into the arc groove, the driving block cooperates with one side of the arc groove, when the square steel shift block rotates, the driving block drives the oblique tongue paddle to rotate synchronously around the first direction, so that the oblique tongue paddle cooperates with the oblique tongue assembly, the driving block and the arc groove form a vacancy, so that when the square steel shift block rotates around the second direction, the oblique tongue paddle will not rotate synchronously;

[0012] A main lock tongue toggle tooth is rotatably arranged on the lock housing, the main lock tongue toggle tooth is meshed with the first gear or meshed with the first gear through a reversing gear, and the main lock tongue toggle tooth has a second matching portion, and the second matching portion of the main lock tongue toggle tooth is used to match with the first pressure-bearing portion or the second pressure-bearing portion of the main lock tongue toggle rod to drive the main lock tongue toggle rod to rotate, and when the second matching portion matches with the first pressure-bearing portion, the main lock tongue toggle rod rotates around direction A to drive the main lock tongue assembly to retract into the lock housing, and when the second matching portion matches with the second pressure-bearing portion, the main lock tongue toggle rod rotates around direction B to drive the main lock tongue assembly to extend out of the lock housing;

[0013] A main lock tongue paddle is rotatably arranged on the lock housing, the main lock tongue paddle has a first working portion and a second working portion, the first working portion cooperates with the main lock tongue lever, so that when the main lock tongue paddle rotates, the main lock tongue lever is driven to rotate;

[0014] A lock paddle is movably arranged on the lock housing, the lock paddle has a fourth matching portion, a fifth matching portion and a sixth matching portion, the lock paddle has an initial working position and an unlocking working position, the fourth matching portion matches with the oblique tongue paddle, and when the lock paddle is active, it can drive the oblique tongue paddle to rotate, the fifth matching portion matches with the second working portion, and when the lock body paddle is switched to the unlocking working position, the fifth matching portion drives the main lock tongue paddle to rotate through the second working portion, and then drives the main lock tongue lever to rotate, so that the main lock tongue assembly is retracted;

[0015] The lock core is arranged on the lock shell, and the lock head of the lock core has an unlocking working position and a locking working position. In the unlocking working position, the lock head of the lock core cooperates with the sixth matching part of the lock head paddle to drive the lock head paddle to switch from the initial working position to the unlocking working position. In the locking working position, the lock head of the lock core cooperates with the main lock tongue paddle or the main lock tongue lever to drive the main lock tongue lever to rotate, so that the main lock tongue assembly extends out of the lock shell.

[0016] The lock body of the present application is a mechanical lock body. No motor is set in the lock body. The unlocking and locking operations are all coordinated by the mechanical structure. The whole structure is simple and reliable. The square steel shift block and the main lock tongue shift teeth are transmitted through gears, which is labor-saving and quiet. In actual use, the present application can be connected to the panel motor to drive the lock core transmission bar or square steel to realize electric door opening and locking.

[0017] The process of the lock body of the present application being operated by the square steel shift block is as follows: when the door is opened and unlocked, the square steel shift block rotates around the first direction, and the driving block drives the inclined bolt shift piece to rotate synchronously around the first direction, so that the inclined bolt shift piece cooperates with the inclined bolt assembly, so that the inclined bolt assembly is retracted onto the lock shell or the inclined bolt assembly is unlocked (that is, the inclined bolt assembly can be retracted when the door is opened, without affecting the door opening operation). While the square steel shift block rotates around the first direction, the first gear can drive the main lock tongue toggle tooth to rotate, and the second matching portion of the main lock tongue toggle tooth cooperates with the first pressed portion to drive the main lock tongue shift rod to rotate around the A direction, and drive the main lock tongue assembly to retract into the lock shell, at this time, the door can be opened normally; when locking the door (at this time, the door is closed and the inclined bolt assembly is extended), the square steel shift block rotates around the second direction, and the first gear can drive the main lock tongue toggle tooth to rotate, and the second matching portion of the main lock tongue toggle tooth cooperates with the second pressed portion to drive the main lock tongue shift rod to rotate around the B direction, and drive the main lock tongue assembly to extend out of the lock shell.

[0018] The process of operating the lock body of the present application through the lock core is as follows: when opening and unlocking the door, the lock head of the lock core can drive the lock head paddle to switch from the initial working position to the unlocking working position by cooperating with the sixth matching part of the lock head paddle, and the fifth matching part drives the main lock tongue paddle to rotate through the second working part, and then drives the main lock tongue lever to rotate, so that the main lock tongue assembly is retracted, and at the same time, through the fourth matching part and the inclined tongue paddle, it can drive the inclined tongue paddle to rotate, so that the inclined tongue assembly is retracted to the lock shell or the inclined tongue assembly is unlocked, so that the unlocking operation can be realized; when locking the door (at this time it is in the closed state and the inclined tongue assembly is extended), the lock head of the lock core cooperates with the main lock tongue paddle or the main lock tongue lever to drive the main lock tongue lever to rotate, so that the main lock tongue assembly is extended out of the lock shell.

[0019] The first direction and the second direction of the present application are clockwise and counterclockwise, respectively. When the first direction is rotated, it is an unlocking operation, and when the second direction is rotated, it is a locking operation. The A direction and the B direction of the present application are opposite.

[0020] Unlocking the latch bolt assembly in the present application means that the latch bolt assembly can be pressed into the lock housing after being unlocked. The inclined bolt assembly is not the invention point of the present application. The inclined bolt assembly can be in various forms. For example, the inclined bolt assembly can be a traditional inclined bolt assembly. The traditional inclined bolt assembly usually includes an inclined bolt seat and an inclined bolt arranged on the inclined bolt seat. In this case, the first matching portion of the inclined bolt pick is used to match with the inclined bolt seat of the inclined bolt assembly, so that the inclined bolt assembly is retracted into the lock shell; the inclined bolt assembly can also be a two-way inclined bolt assembly. The two-way inclined bolt assembly usually includes an inclined bolt seat, a two-way tongue arranged on the inclined bolt seat, and a locking piece for locking the position of the inclined bolt seat. In this case, the first matching portion of the inclined bolt pick is used to match with the locking piece of the two-way inclined bolt assembly to unlock the locking piece of the two-way inclined bolt assembly, so that the two-way inclined bolt can be retracted into the lock shell after being pressed; the inclined bolt assembly can also be a flip inclined bolt assembly. The flip inclined bolt assembly usually includes a flip tongue, a top seat, and a locking piece that matches the flip tongue or the top seat. In this case, the first matching portion of the inclined bolt pick is used to match with the locking piece of the flip inclined bolt assembly to unlock the locking piece of the flip inclined bolt assembly, so that the flip tongue can be retracted into the lock shell after being pressed.

[0021] In one embodiment of the present invention, the main lock tongue assembly includes a main body and a main tongue portion, the main body is provided with a driving groove, and the main lock tongue lever has a protruding column that cooperates with the driving groove.

[0022] In one embodiment of the present invention, the rotation axis of the main lock bolt paddle coincides with the rotation axis of the main lock bolt lever.

[0023] In one embodiment of the present invention, the rotation axes of the square steel shift block and the oblique tongue shift piece coincide with each other.

[0024] In one embodiment of the present invention, the first working portion is a slot or a hole, and the boss of the main lock bolt lever is inserted into the first working portion.

[0025] In one embodiment of the present invention, the latch assembly includes a latch seat slidably disposed on the lock housing and a latch portion disposed on one side of the latch seat, and the first mating portion cooperates with the latch seat to drive the latch seat to slide so that the latch assembly is retracted onto the lock housing.

[0026] In one embodiment of the present invention, the lock further comprises a first elastic member disposed in the lock housing, wherein the first elastic member is used to make the latch bolt assembly have a tendency to extend outward.

[0027] In one embodiment of the present invention, a first detection sensor is further included, and the first detection sensor cooperates with the latch tongue seat to detect the extension and retraction state of the latch tongue.

[0028] In one embodiment of the present invention, it also includes a trigger tongue assembly, a second elastic member and a second detection sensor. The trigger tongue assembly is slidably mounted on the lock housing. The second elastic member is used to make the trigger tongue assembly have a tendency to extend outward. The second detection sensor cooperates with the trigger tongue assembly to detect the telescopic state of the trigger tongue.

[0029] The first detection sensor and the second detection sensor can detect the state of the door, and can also distinguish whether it is opened by the square steel block or the key.

[0030] In one embodiment of the present invention, the lock tongue paddle is slidably disposed on the lock housing; the oblique tongue paddle has a notch, and the fourth matching portion extends into the notch, or the oblique tongue paddle has a protrusion, and the fourth matching portion has a groove for the protrusion to extend into.

[0031] In one embodiment of the present invention, the main lock tongue paddle has a seventh matching portion, or the main lock tongue lever has a seventh matching portion; when in the locking working position, the lock head of the lock core matches with the seventh matching portion.

[0032] The beneficial effects of the present invention are as follows: the lock body of the present application is a mechanical lock body, no motor is arranged in the lock body, the unlocking and locking operations are both coordinated by the mechanical structure, and the whole structure is simple and reliable; the square steel shift block and the main lock tongue shift teeth are driven by gears, which is labor-saving and silent. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the lock body;

[0034] Figure 2 is a schematic diagram of a main deadbolt assembly and a main deadbolt lever;

[0035] Figure 3 It is a schematic diagram of the main lock tongue lever and the main lock tongue driving tooth;

[0036] Figure 4 is a schematic diagram of the main lock bolt lever and the main lock bolt paddle;

[0037] Figure 5 It is a schematic diagram of the lock body omitting the lock cylinder;

[0038] Figure 6 is a schematic diagram of the main deadbolt assembly extending out of the lock housing;

[0039] Figure 7 It is a schematic diagram of the square steel push block or lock cylinder unlocking to retract the main lock tongue assembly into the lock housing.

[0040] The reference numerals in the figures are:

[0041] 1. Lock housing; 2. Oblique tongue assembly; 3. Main lock tongue assembly; 4. Main lock tongue lever; 5. First pressure-bearing part; 6. Second pressure-bearing part; 7. Oblique tongue paddle; 8. First matching part; 9. Arc groove; 10. Square steel paddle block; 11. First gear; 12. Driving block; 13. Main lock tongue paddle; 14. Reversing gear; 15. Main lock tongue paddle; 16. First working part; 17. Second working part; 18. Lock head paddle; 19. Fourth Matching part; 20, fifth matching part; 21, sixth matching part; 22, lock core; 23, lock head; 24, second matching part; 25, main body; 26, main tongue; 27, driving groove; 28, oblique tongue seat; 29, oblique tongue; 30, first elastic member; 31, first detection sensor; 32, trigger tongue assembly; 33, second elastic member; 34, second detection sensor; 35, notch; 36, seventh matching part; 37, boss. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] The present invention is described in detail below in conjunction with the accompanying drawings.

[0046] like Figures 1 to 7 As shown, a lock body comprises:

[0047] Lock housing 1;

[0048] The inclined bolt assembly 2 is arranged on the lock housing 1;

[0049] A main locking tongue assembly 3 is slidably arranged on the lock housing 1;

[0050] A main lock tongue lever 4 is rotatably arranged on the lock housing 1. The main lock tongue lever 4 is used to cooperate with the main lock tongue assembly 3 of the lock body to drive the main lock tongue assembly 3 to extend or retract into the lock housing 1. The main lock tongue lever 4 has a first pressure-bearing portion 5 and a second pressure-bearing portion 6.

[0051] The oblique tongue paddle 7 is rotatably arranged on the lock housing 1. The oblique tongue paddle 7 has a first matching portion 8. The first matching portion 8 is used to match with the oblique tongue assembly 2 to retract the oblique tongue assembly 2 onto the lock housing 1 or unlock the oblique tongue assembly 2. The oblique tongue paddle 7 has an arc-shaped groove 9;

[0052] A square steel shift block 10 is rotatably arranged on the lock housing 1. A first gear 11 is installed on the square steel shift block 10. The square steel shift block 10 has a driving block 12 extending into the arc groove 9. The driving block 12 cooperates with one side of the arc groove 9. When the square steel shift block 10 rotates, the driving block 12 drives the oblique tongue paddle 7 to rotate synchronously around the first direction, so that the oblique tongue paddle 7 cooperates with the oblique tongue assembly 2. The driving block 12 and the arc groove 9 form a vacancy, so that when the square steel shift block 10 rotates around the second direction, the oblique tongue paddle 7 will not rotate synchronously;

[0053] The main lock tongue toggle tooth 13 is rotatably arranged on the lock housing 1, the main lock tongue toggle tooth 13 is meshed with the first gear 11 or meshed with the first gear 11 through the reversing gear 14, and the main lock tongue toggle tooth 13 has a second matching portion 24, and the second matching portion 24 of the main lock tongue toggle tooth 13 is used to match with the first pressure-bearing portion 5 or the second pressure-bearing portion 6 of the main lock tongue toggle rod 4, so as to drive the main lock tongue toggle rod 4 to rotate, and when the second matching portion 24 matches with the first pressure-bearing portion 5, the main lock tongue toggle rod 4 rotates around the A direction, so as to drive the main lock tongue assembly 3 to retract into the lock housing 1, and when the second matching portion 24 matches with the second pressure-bearing portion 6, the main lock tongue toggle rod 4 rotates around the B direction, so as to drive the main lock tongue assembly 3 to extend out of the lock housing 1;

[0054] The main lock tongue paddle 15 is rotatably arranged on the lock housing 1. The main lock tongue paddle 15 has a first working portion 16 and a second working portion 17. The first working portion 16 cooperates with the main lock tongue lever 4 so that when the main lock tongue paddle 15 rotates, the main lock tongue lever 4 is driven to rotate;

[0055] The lock paddle 18 is movably arranged on the lock housing 1. The lock paddle 18 has a fourth matching portion 19, a fifth matching portion 20 and a sixth matching portion 21. The lock paddle 18 has an initial working position and an unlocking working position. The fourth matching portion 19 matches with the oblique tongue paddle 7. When the lock paddle 18 is active, it can drive the oblique tongue paddle 7 to rotate. The fifth matching portion 20 matches with the second working portion 17. When the lock body paddle is switched to the unlocking working position, the fifth matching portion 20 drives the main lock tongue paddle 15 to rotate through the second working portion 17, and then drives the main lock tongue lever 4 to rotate, so that the main lock tongue assembly 3 is retracted;

[0056] The lock core 22 is arranged on the lock housing 1, and the lock head 23 of the lock core 22 has an unlocking working position and a locking working position. In the unlocking working position, the lock head 23 of the lock core 22 cooperates with the sixth matching portion 21 of the lock head paddle 18 to drive the lock head paddle 18 to switch from the initial working position to the unlocking working position. In the locking working position, the lock head 23 of the lock core 22 cooperates with the main lock tongue paddle 15 or the main lock tongue lever 4 to drive the main lock tongue lever 4 to rotate, so that the main lock tongue assembly 3 extends out of the lock housing 1.

[0057] The lock body of the present application is a mechanical lock body. No motor is set in the lock body. The unlocking and locking operations are all coordinated by the mechanical structure. The whole structure is simple and reliable. The square steel shift block 10 and the main lock tongue shift tooth 13 are driven by gears, which is labor-saving and quiet. In actual use, the present application can be connected to a panel motor to drive the lock core transmission bar or square steel to realize electric door opening and locking.

[0058] The process of operating the lock body of the present application through the square steel shift block 10 is as follows: Figure 7 When the door is opened and unlocked, the square steel shift block 10 rotates in a first direction (clockwise in the figure), and the driving block 12 drives the inclined bolt shift piece 7 to rotate synchronously in the first direction, so that the inclined bolt shift piece 7 cooperates with the inclined bolt assembly 2, so that the inclined bolt assembly 2 is retracted to the lock housing 1 or the inclined bolt assembly 2 is unlocked (that is, the inclined bolt assembly 2 can be retracted when the door is opened, and the door opening operation is not affected). When the square steel shift block 10 rotates in the first direction, the first gear 11 can drive the main lock bolt toggle tooth 13 to rotate, and the second matching portion 24 of the main lock bolt toggle tooth 13 is engaged with the first receiving portion. The pressing part 5 cooperates to drive the main lock tongue lever 4 to rotate around the A direction (counterclockwise), and drives the main lock tongue assembly 3 to retract into the lock shell 1, and the door can be opened normally at this time; when locking the door (at this time it is in the closed state, and the oblique tongue assembly 2 is extended), the square steel block 10 rotates around the second direction (counterclockwise), and the first gear 11 can drive the main lock tongue toggle tooth 13 to rotate, and the second matching part 24 of the main lock tongue toggle tooth 13 cooperates with the second pressed part 6 to drive the main lock tongue lever 4 to rotate around the B direction (clockwise), and drive the main lock tongue assembly 3 to extend out of the lock shell 1.

[0059] The process of the lock body of the present application operating through the lock core 22 is as follows: Figure 7When the door is unlocked, the lock head 23 of the lock cylinder 22 cooperates with the sixth matching portion 21 of the lock head paddle 18 to drive the lock head paddle 18 to switch from the initial working position to the unlocking working position, and the fifth matching portion 20 drives the main lock tongue paddle 15 to rotate through the second working portion 17, thereby driving the main lock tongue lever 4 to rotate, so that the main lock tongue assembly 3 is retracted, and at the same time, the fourth matching portion 19 cooperates with the oblique tongue paddle 7 to drive the oblique tongue paddle 7 to rotate, so that the oblique tongue assembly 2 is retracted to the lock housing 1 or the oblique tongue assembly 2 is unlocked, so that the unlocking operation can be realized; see Figure 6 When the door is locked (the door is closed at this time, and the inclined bolt assembly 2 is extended), the lock head 23 of the lock core 22 cooperates with the main lock bolt paddle 15 or the main lock bolt lever 4 to drive the main lock bolt lever 4 to rotate, so that the main lock bolt assembly 3 extends out of the lock housing 1.

[0060] In this embodiment, the first direction is the clockwise direction, and the second direction is the counterclockwise direction. In this embodiment, direction A is the counterclockwise direction, and direction B is the clockwise direction.

[0061] The present application states that the latch bolt assembly 2 is unlocked, which means that the latch bolt assembly 2 can be pressed into the lock housing 1 after being pressed after being unlocked. The latch bolt assembly 2 is not the invention of the present application. The latch bolt assembly 2 of the present application can be any of the existing types of latch bolt assemblies. For example, the latch bolt assembly 2 can be a traditional latch bolt assembly 2. The traditional latch bolt assembly 2 usually includes a latch bolt seat 28 and a latch bolt disposed on the latch bolt seat 28. At this time, the first mating portion 8 of the latch bolt paddle 7 is used to cooperate with the latch bolt seat 28 of the latch bolt assembly 2 to retract the latch bolt assembly 2 onto the lock housing 1. The latch bolt assembly 2 can also be a two-way latch bolt assembly 2. The two-way latch bolt assembly 2 usually includes a latch bolt seat 28, a two-way tongue disposed on the latch bolt seat 28, and a latch bolt for locking the latch bolt assembly 2. The locking piece of the tongue seat 28 is positioned, and the first matching portion 8 of the inclined tongue pick 7 is used to match with the locking piece of the two-way inclined tongue assembly 2 to unlock the locking piece of the two-way inclined tongue assembly 2, so that the two-way inclined tongue can be retracted onto the lock housing 1 after being pressed; the inclined tongue assembly 2 can also be a flip inclined tongue assembly 2, and the flip inclined tongue assembly 2 generally includes a flip tongue, a top seat, and a locking piece matched with the flip tongue or the top seat. At this time, the first matching portion 8 of the inclined tongue pick 7 is used to match with the locking piece of the flip inclined tongue assembly 2 to unlock the locking piece of the flip inclined tongue assembly 2, so that the flip tongue can be retracted onto the lock housing 1 after being pressed.

[0062] The main lock tongue assembly 3 is not the invention point of the present application. The main lock tongue assembly 3 of the present application can be a main lock tongue assembly of various existing structural forms.

[0063] The square steel shift block 10 mentioned in the present application is provided with a first gear 11 , which includes the case where the square steel shift block 10 and the first gear 11 are an integrated part.

[0064] like Figure 1 , 2As shown in FIGS. 5 and 5 , in this embodiment, the main lock tongue assembly 3 includes a main body 25 and a main tongue portion 26 . The main body 25 has a driving groove 27 , and the main lock tongue lever 4 has a protrusion 37 that cooperates with the driving groove 27 .

[0065] In this embodiment, the rotation axis of the main lock bolt paddle 15 coincides with the rotation axis of the main lock bolt lever 4. The rotation axes of the square steel paddle block 10 and the oblique bolt paddle 7 coincide.

[0066] like Figure 1 and 4 In this embodiment, the first working portion 16 is a slot or a hole, and the boss 37 of the main lock bolt lever 4 is inserted into the first working portion 16.

[0067] like Figure 1 As shown, in this embodiment, the inclined tongue assembly 2 includes an inclined tongue seat 28 slidably disposed on the lock housing 1 and an inclined tongue portion 29 disposed on one side of the inclined tongue seat 28. The first matching portion 8 cooperates with the inclined tongue seat 28 to drive the inclined tongue seat 28 to slide so that the inclined tongue assembly 2 is retracted onto the lock housing 1. It also includes a first elastic member 30 disposed in the lock housing 1, and the first elastic member 30 is used to make the inclined tongue assembly 2 have a tendency to extend outward. It also includes a first detection sensor 31, and the first detection sensor 31 cooperates with the inclined tongue seat 28 to detect the telescopic state of the inclined tongue. It also includes a trigger tongue assembly 32, a second elastic member 33 and a second detection sensor 34. The trigger tongue assembly 32 is slidably mounted on the lock housing 1. The second elastic member 33 is used to make the trigger tongue assembly 32 have a tendency to extend outward. The second detection sensor 34 cooperates with the trigger tongue assembly 32 to detect the telescopic state of the trigger tongue.

[0068] The first detection sensor 31 and the second detection sensor 34 can detect the state of the door and can also distinguish whether the door is opened by the square steel block 10 or by a key.

[0069] like Figure 1 As shown, in this embodiment, the lock tongue pick is slidably arranged on the lock housing 1; the oblique tongue pick 7 has a notch 35, and the fourth matching portion 19 extends into the notch 35. In actual use, it can also be arranged as follows: the oblique tongue pick 7 has a protrusion, and the fourth matching portion 19 has a groove for the protrusion to extend into.

[0070] like Figure 3 , 4 As shown in FIG. 6 , in this embodiment, the main lock tongue paddle 15 has a seventh matching portion 36, and the main lock tongue lever 4 has a seventh matching portion 36; when in the locked working position, the lock head 23 of the lock cylinder 22 cooperates with the seventh matching portion 36. In actual use, at least one of the main lock tongue paddle 15 and the main lock tongue lever 4 has the seventh matching portion 36.

[0071] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A lock body, characterized in that: include: Lock case; A latch bolt assembly, arranged on the lock housing; A main lock tongue assembly is slidably disposed on the lock housing; A main lock tongue lever is rotatably arranged on the lock housing, the main lock tongue lever is used to cooperate with the main lock tongue assembly of the lock body to drive the main lock tongue assembly to extend or retract into the lock housing, and the main lock tongue lever has a first pressure-bearing portion and a second pressure-bearing portion; A latch blade is rotatably arranged on the lock housing, the latch blade has a first matching portion, the first matching portion is used to match with the latch assembly to retract the latch assembly into the lock housing or unlock the latch assembly, and the latch blade has an arc-shaped groove; A square steel shift block, the square steel shift block is rotatably arranged on the lock housing, a first gear is installed on the square steel shift block, the square steel shift block has a driving block extending into the arc groove, the driving block cooperates with one side of the arc groove, when the square steel shift block rotates, the driving block drives the oblique tongue paddle to rotate synchronously around the first direction, so that the oblique tongue paddle cooperates with the oblique tongue assembly, the driving block and the arc groove form a vacancy, so that when the square steel shift block rotates around the second direction, the oblique tongue paddle will not rotate synchronously; A main lock tongue toggle tooth is rotatably arranged on the lock housing, the main lock tongue toggle tooth is meshed with the first gear or meshed with the first gear through a reversing gear, and the main lock tongue toggle tooth has a second matching portion, and the second matching portion of the main lock tongue toggle tooth is used to match with the first pressure-bearing portion or the second pressure-bearing portion of the main lock tongue toggle rod to drive the main lock tongue toggle rod to rotate, and when the second matching portion matches with the first pressure-bearing portion, the main lock tongue toggle rod rotates around direction A to drive the main lock tongue assembly to retract into the lock housing, and when the second matching portion matches with the second pressure-bearing portion, the main lock tongue toggle rod rotates around direction B to drive the main lock tongue assembly to extend out of the lock housing; A main lock tongue paddle is rotatably arranged on the lock housing, the main lock tongue paddle has a first working portion and a second working portion, the first working portion cooperates with the main lock tongue lever, so that when the main lock tongue paddle rotates, the main lock tongue lever is driven to rotate; A lock paddle is movably arranged on the lock housing, the lock paddle has a fourth matching portion, a fifth matching portion and a sixth matching portion, the lock paddle has an initial working position and an unlocking working position, the fourth matching portion matches with the oblique tongue paddle, and when the lock paddle is active, it can drive the oblique tongue paddle to rotate, the fifth matching portion matches with the second working portion, and when the lock body paddle is switched to the unlocking working position, the fifth matching portion drives the main lock tongue paddle to rotate through the second working portion, and then drives the main lock tongue lever to rotate, so that the main lock tongue assembly is retracted; The lock core is arranged on the lock shell, and the lock head of the lock core has an unlocking working position and a locking working position. In the unlocking working position, the lock head of the lock core cooperates with the sixth matching part of the lock head paddle to drive the lock head paddle to switch from the initial working position to the unlocking working position. In the locking working position, the lock head of the lock core cooperates with the main lock tongue paddle or the main lock tongue lever to drive the main lock tongue lever to rotate, so that the main lock tongue assembly extends out of the lock shell.

2. The lock body according to claim 1, characterized in that: The main lock tongue assembly comprises a main body and a main tongue portion, the main body is provided with a driving groove, and the main lock tongue lever is provided with a convex column matched with the driving groove.

3. The lock body according to claim 2, characterized in that: The rotation axis of the main lock tongue paddle coincides with the rotation axis of the main lock tongue paddle rod; the rotation axes of the square steel paddle block and the oblique tongue paddle coincide.

4. The lock body according to claim 3, characterized in that: The first working portion is a slot or a hole, and the protruding column of the main lock tongue lever is inserted into the first working portion.

5. The lock body according to claim 1, characterized in that: The oblique bolt assembly includes an oblique bolt seat slidably arranged on the lock housing and an oblique bolt portion arranged on one side of the oblique bolt seat. The first matching portion cooperates with the oblique bolt seat to drive the oblique bolt seat to slide and retract the oblique bolt assembly into the lock housing.

6. The lock body according to claim 5, characterized in that: The lock also includes a first elastic member arranged in the lock housing, wherein the first elastic member is used to make the latch bolt assembly have a movement tendency to extend outward.

7. The lock body according to claim 6, characterized in that: It also includes a first detection sensor, which cooperates with the oblique tongue seat and is used to detect the telescopic state of the oblique tongue.

8. The lock body according to claim 1, characterized in that: It also includes a trigger tongue assembly, a second elastic member and a second detection sensor. The trigger tongue assembly is slidably mounted on the lock housing. The second elastic member is used to make the trigger tongue assembly have a tendency to extend outward. The second detection sensor cooperates with the trigger tongue assembly to detect the telescopic state of the trigger tongue.

9. The lock body according to claim 1, characterized in that: The lock tongue paddle is slidably arranged on the lock housing; the oblique tongue paddle has a notch, and the fourth matching portion extends into the notch, or the oblique tongue paddle has a protrusion, and the fourth matching portion has a groove for the protrusion to extend into.

10. The lock body according to claim 1, characterized in that: The main lock tongue paddle has a seventh matching portion, or the main lock tongue paddle has a seventh matching portion; when in the locking working position, the lock head of the lock core matches with the seventh matching portion.

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