Door lock

Abstract

The utility model relates to the technical field of locking locks, and discloses a door lock which comprises a shell, a door lock body and a locking device. The lock head shifting wheel is rotatably arranged on the shell and can rotate between a locking state and an unlocking state; the main lock shifting piece is rotationally arranged on the shell and located on one side of the lock head shifting wheel; the main lock tongue is telescopically arranged on the shell and is in transmission connection with the main lock shifting piece; the swing piece is rotatably arranged on the shell, and the movable end of the swing piece is located on the surface of one side of the main lock shifting piece; the guide structure comprises a first sliding groove formed in one of the main lock shifting piece and the swing piece, and a first guide protruding part formed on the other one of the main lock shifting piece and the swing piece. According to the door lock, the swinging piece is used for replacing a gear structure to drive the main lock shifting piece to move, the door lock can be made of sheet metal stamping pieces, therefore, the manufacturing cost is reduced, the manufacturing efficiency of the swinging piece is improved, and the door lock is simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a door lock. Background Art

[0002] A lock is a device used to protect property, premises or information. The purpose of a lock is to provide a means of limiting and controlling access, ensuring that only legitimate people or authorized individuals can use or enter the protected area or item. Locks can be used in a variety of applications, such as home door locks, office door locks, vehicle locks, safe locks, computer password locks, etc.

[0003] In the prior art, the unlocking structure of a door lock generally includes a lock dial and a main lock paddle. A first gear is formed on the outer periphery of the main lock paddle and the lock dial, and a second gear is formed on the lock dial. The first gear and the second gear are meshed. The lock dial can drive the main lock paddle to rotate synchronously when it rotates, thereby driving the main lock tongue to retract or extend. However, the gear structure is complex and the cost is high. Utility Model Content

[0004] In view of this, the utility model provides a door lock to solve the problem that the unlocking structure in the prior art uses a gear structure to drive the main lock tongue, resulting in a complex structure and high cost of the unlocking structure.

[0005] In a first aspect, the utility model provides a door lock, comprising:

[0006] case;

[0007] The lock wheel is rotatably arranged on the housing and can rotate between a locked state and an unlocked state;

[0008] The main lock paddle is rotatably arranged on the housing and is located on one side of the lock paddle wheel;

[0009] A main lock tongue is telescopically arranged on the housing and is drivingly connected to the main lock paddle;

[0010] A swinging member is rotatably disposed on the housing, and a movable end is located on a side surface of the main lock paddle;

[0011] The guide structure includes a first slide groove formed on one of the main lock paddle and the swing member, and a first guide protrusion formed on the other of the main lock paddle and the swing member, the first guide protrusion has a locking position relative to the first slide groove, and when the first guide protrusion is in the locking position, the main lock paddle can drive the main lock tongue to extend out of the housing;

[0012] The lock head dial wheel can abut against the swinging member when switching from the unlocking state to the locking state, so that the first guide protrusion moves to the locking position.

[0013] Beneficial effects:

[0014] The door lock of the utility model is provided with a swinging member on the shell. When the door needs to be locked, the lock wheel can be switched to a locked state under the action of a key or a motor, and in this process it abuts against the swinging member, so that the swinging member and the main lock paddle move relative to each other, so that the first guide protrusion moves to the locked position, and the main lock tongue extends out of the shell.

[0015] Therefore, the door lock of the present invention uses a swinging part instead of a gear structure to drive the movement of the main lock paddle. The strength requirement of the swinging part is relatively low, and it can be made of sheet metal stampings, thereby reducing the manufacturing cost and improving the manufacturing efficiency of the swinging part. It can avoid the defects of complex structure and high cost caused by the use of a gear structure. The door lock of the present invention has a simple structure and low cost.

[0016] In an optional embodiment, the first guide protrusion further has an unlocking position relative to the first sliding groove, and when the first guide protrusion is in the unlocking position, the lock head dial wheel can drive the main lock tongue to retract relative to the housing, and a first abutting portion is formed on the main lock dial;

[0017] The lock head dial wheel can abut against the first abutting portion when switching from a locked state to an unlocked state, so that the first guide protrusion moves to an unlocked position.

[0018] Beneficial effects:

[0019] When the door needs to be opened, the lock dial wheel can be driven to the unlocking position by the key or the motor, and in the process abuts against the first abutting portion, so that the main lock paddle rotates, and the main lock tongue is retracted through the transmission cooperation between the main lock paddle and the main lock tongue. At the same time, the main lock paddle can also switch the first guide protrusion to the unlocking position through the transmission cooperation between it and the swing member, so that when the door needs to be locked, the lock dial wheel can abut against the swing member.

[0020] In an optional embodiment, the lock dial includes a toggle portion protruding from the rotating shaft of the lock dial, and when the first guide protrusion is in the unlocking position, the distance between the first abutment portion and the rotating shaft of the lock dial is greater than or equal to the radial length of the toggle portion along the lock dial.

[0021] Beneficial effects:

[0022] By such a configuration, the distance between the rotating shaft of the lock dial wheel and the rotating shaft of the main lock paddle can be set larger, so as to increase the torque when the lock dial wheel moves the main lock paddle, thereby achieving a labor-saving effect. When the lock dial wheel is switched from the unlocked state to the locked state, the lock dial wheel cannot move the main lock paddle, and the swinging member can replace the main lock paddle to abut against the lock dial wheel, and indirectly drive the main lock paddle through the transmission cooperation of the first guide protrusion and the first slide rail, so that the main lock tongue is extended to complete the locking.

[0023] In an optional embodiment, the swinging part is a stamping part.

[0024] In an optional embodiment, a first avoidance notch is formed on a side of the swinging member close to the lock wheel, and the toggle portion can move in the first avoidance notch; and / or,

[0025] A second avoidance notch is formed on the toggle portion, the second avoidance notch extends along the rotation direction of the toggle portion, and the rotating shaft of the main lock paddle is arranged in the second avoidance notch.

[0026] Beneficial effects:

[0027] The first avoidance notch and the second avoidance notch can not only reduce the material used for the swinging member, but also prevent the swinging member from hindering the movement of the toggle portion and the main lock paddle.

[0028] In an optional embodiment, the main locking tongue includes:

[0029] A main locking bolt plate is movably disposed in the housing;

[0030] a second slide groove formed on the main lock bolt plate;

[0031] A second guide protrusion is formed on the main lock paddle, and the second guide protrusion can slide along the second slide groove. When the first guide protrusion moves to the locking position, the main lock tongue can extend into the shell under the action of the second guide protrusion. When the first guide protrusion moves to the unlocking position, the main lock tongue can be retracted from the shell under the action of the second guide protrusion.

[0032] Beneficial effects:

[0033] The door lock of the utility model drives the main lock tongue to retract or extend through the cooperation of the second sliding groove and the second guiding protrusion. Compared with using a gear structure to drive the main lock tongue to retract or extend, the cost is lower and the processing process is simpler.

[0034] In an optional embodiment, a third avoidance gap is formed on the swinging member, and when the first guide protrusion moves to the locking position, the second guide protrusion is located in the third avoidance gap.

[0035] Beneficial effects:

[0036] The third avoidance notch can prevent the swinging member from hindering the movement of the first guide protrusion and can also save the material used for the swinging member.

[0037] In an optional embodiment, the door lock further includes:

[0038] The oblique tongue is telescopically arranged in the housing and is located on a side of the main lock paddle away from the lock head paddle wheel;

[0039] The oblique tongue linkage piece is coaxially arranged with the main lock paddle, and comprises a second abutment portion and a third abutment portion;

[0040] The oblique tongue paddle is hinged on the shell and is located between the oblique tongue linkage piece and the oblique tongue. The oblique tongue paddle includes a fourth abutment portion and a fifth abutment portion. Along the direction in which the oblique tongue extends, the fourth abutment portion is located downstream of the third abutment portion. The oblique tongue includes a sixth abutment portion. Along the direction in which the lock tongue extends, the fifth abutment portion is located downstream of the sixth abutment portion.

[0041] Beneficial effects:

[0042] When the lock wheel is switched to the unlocked state, the toggle part can first abut against the main lock wheel. When the main lock tongue is retracted halfway, the toggle part abuts against the inclined tongue linkage piece. The inclined tongue linkage piece can drive the inclined tongue paddle to rotate in the opposite direction, and the inclined tongue retracts.

[0043] In an optional embodiment, the lock tongue further comprises:

[0044] A connecting rod, the connecting rod is telescopically arranged in the housing, and the sixth abutment portion is formed on the connecting rod;

[0045] The seventh abutment portion is sleeved on the connecting rod and is located on a side of the fifth abutment portion away from the sixth abutment portion, and the seventh abutment portion is connected to the housing;

[0046] an eighth abutting portion, formed on the connecting rod and located on a side of the seventh abutting portion away from the fifth abutting portion;

[0047] The spring is sleeved on the connecting rod and clamped between the seventh abutting portion and the eighth abutting portion, and can drive the oblique tongue to extend out of the housing when the first guiding protrusion is in the locking position.

[0048] Beneficial effects:

[0049] When the lock wheel is switched to the unlocked state, the toggle part can first abut against the main lock wheel. When the main lock tongue is retracted halfway, the toggle part abuts against the inclined tongue linkage piece. The inclined tongue linkage piece can drive the inclined tongue paddle to rotate in the opposite direction. The sixth abutting part can carry the connecting rod to retract under the action of the fifth abutting part. The eighth abutting part can move synchronously with the connecting rod and compress the spring.

[0050] When the lock wheel is switched to the locked state, the sixth abutment portion loses the force of the fifth abutment portion, and the spring can extend through its own elastic restoring force to increase the distance between the seventh abutment portion and the eighth abutment portion, and the oblique tongue extends from the shell.

[0051] In an optional embodiment, the door lock also includes a handle paddle, which is coaxially arranged with the oblique tongue paddle, and a first tooth portion is formed on the handle paddle, the first tooth portion includes a plurality of first teeth arranged at intervals along the edge of the handle paddle, and a second tooth portion is formed on the main lock paddle, the main lock paddle includes a plurality of second teeth arranged at intervals, and the first tooth portion is meshed with the second tooth portion.

[0052] Beneficial effects:

[0053] The handle paddle can rotate with the door handle. The operator can drive the handle paddle to rotate by rotating the door handle, so that the latch bolt retracts, and the main lock paddle is driven to rotate synchronously through the transmission cooperation of the first tooth portion and the second tooth portion, thereby completing the unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0055] Figure 1 This is a schematic diagram of a door lock according to an embodiment of the utility model, in which the main lock tongue is in an extended state;

[0056] Figure 2 This is a schematic diagram of a door lock according to an embodiment of the utility model, in which the main lock tongue is in a retracted state and the oblique lock tongue is in an extended state;

[0057] Figure 3 This is a schematic diagram of a door lock according to an embodiment of the utility model, in which the main lock tongue and the oblique tongue are both in a retracted state;

[0058] Figure 4 This is a schematic diagram of a door lock according to an embodiment of the utility model. In order to facilitate the display of the structure of the main lock bolt plate, the top and bottom hooks on one side are hidden;

[0059] Figure 5 This is a schematic diagram of a door lock according to an embodiment of the present invention from another angle.

[0060] Description of reference numerals:

[0061] 1. Shell;

[0062] 2. Locking wheel; 201. Driving part;

[0063] 3. Main lock paddle; 301. First abutment portion; 302. Second guide protrusion; 303. Second tooth portion;

[0064] 4. Main lock tongue; 401. Main lock bolt plate; 402. Second slide groove;

[0065] 5. Swinging member; 501. First avoidance gap; 502. Second avoidance gap; 503. Third avoidance gap;

[0066] 6. Guide structure; 601. First slide groove; 602. First guide protrusion;

[0067] 7. oblique tongue; 701. sixth abutment portion; 702. connecting rod; 703. seventh abutment portion; 704. eighth abutment portion; 705. spring;

[0068] 8. oblique tongue linkage piece; 801. second abutting portion; 802. third abutting portion;

[0069] 9. Oblique tongue pick; 901. Fourth abutment portion; 902. Fifth abutment portion;

[0070] 10. Handle paddle; 101. First tooth portion. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0072] In the prior art, the unlocking structure of the door lock generally includes a lock dial 2 and a main lock paddle 3. A first gear is formed on the outer periphery of the main lock paddle 3 and the lock dial 2, and a second gear is formed on the lock dial 2. The first gear and the second gear are meshed. The lock dial 2 can drive the main lock paddle 3 to rotate synchronously when rotating, thereby driving the main lock tongue 4 to retract or extend. However, the gear structure has a complex structure and high strength requirements, and is generally made by powder metallurgy or injection molding, resulting in a high manufacturing cost and low manufacturing efficiency of the gear structure.

[0073] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0074] According to an embodiment of the utility model, on the one hand, a door lock is provided, comprising a housing 1, a lock dial wheel 2, a main lock tongue 4, a swinging member 5 and a guide structure 6. The lock dial wheel 2 is rotatably arranged on the housing 1 and can rotate between an unlocked state and a locked state. The main lock paddle 3 is rotatably arranged on the housing 1 and is located on one side of the lock dial wheel 2. The main lock tongue 4 is telescopically arranged on the housing 1 and is transmission-connected with the main lock paddle 3. The swinging member 5 is rotatably arranged on the housing 1, and the movable end is located on one side surface of the main lock paddle 3. The guide structure 6 comprises a first slide groove 601 formed on one of the main lock paddle 3 and the swinging member 5, and a first guide protrusion 602 formed on the other of the main lock paddle 3 and the swinging member 5. The first guide protrusion 602 has a locking position relative to the first slide groove 601. When the first guide protrusion 602 is in the locking position, the main lock paddle 3 can drive the main lock tongue 4 to extend out of the housing 1. The lock dial 2 can abut against the swing member 5 when switching from the unlocked state to the locked state, so that the first guide protrusion 602 moves to the locked position.

[0075] The door lock of the present invention is provided with a swinging member 5 on the housing 1. Figure 1 As shown, when the door needs to be locked, the lock wheel 2 can be switched to a locked state under the action of a key or a motor, and in this process abuts against the swing member 5, thereby causing the swing member 5 and the main lock paddle 3 to move relative to each other, so that the first guide protrusion 602 moves to the locked position, and the main lock tongue 4 extends out of the housing 1.

[0076] Therefore, the door lock of the present invention uses a swinging member 5 instead of a gear structure to drive the movement of the main lock paddle 3. The strength requirement of the swinging member 5 is relatively low, and it can be made of sheet metal stampings, thereby reducing the manufacturing cost and improving the manufacturing efficiency of the swinging member 5. It can avoid the defects of complex structure and high cost caused by the use of a gear structure. The door lock of the present invention has a simple structure and low cost.

[0077] The door lock is preferably, but not limited to, a quick-open lock body or a king lock body, etc. The swing member 5 is preferably, but not limited to, a cam or a swing rod, etc.

[0078] In one embodiment, Figure 3 As shown, the first guide protrusion 602 also has an unlocking position relative to the first slide groove 601, and a first abutting portion 301 is formed on the main lock paddle 3. The lock head dial wheel 2 can abut against the first abutting portion 301 when switching from the locked state to the unlocked state, so that the main lock paddle 3 drives the main lock tongue 4, and the first guide protrusion 602 moves to the unlocking position.

[0079] When the door needs to be opened, the lock dial wheel 2 can be driven to the unlocking position by the key or the motor, and in the process abuts against the first abutting portion 301, so that the main lock paddle 3 rotates, and the main lock tongue 4 is retracted through the transmission cooperation between the main lock paddle 3 and the main lock tongue 4. At the same time, the main lock paddle 3 can also switch the first guide protrusion 602 to the unlocking position through the transmission cooperation between it and the swing member 5, so that when the door needs to be locked, the lock dial wheel 2 can abut against the swing member 5.

[0080] As a convertible implementation, when the lock dial wheel 2 is in the unlocked state, the lock dial wheel 2 can abut against the swing member 5, so that the first guide protrusion 602 is switched to the unlocked position, so that the main lock tongue 4 extends relative to the housing 1.

[0081] In one embodiment, the lock dial 2 includes a toggle portion 201 protruding from the rotation axis of the lock dial 2. When the first guide protrusion 602 is in the unlocking position, the distance between the first abutment portion 301 and the rotation axis of the lock dial 2 is greater than or equal to the radial length of the toggle portion 201 along the lock dial 2.

[0082] By such a configuration, the distance between the rotating shaft of the lock dial wheel 2 and the rotating shaft of the main lock paddle 3 can be set larger, so as to increase the torque of the lock dial wheel 2 in the process of moving the main lock paddle 3, thereby achieving a labor-saving effect. When the lock dial wheel 2 is switched from the unlocked state to the locked state, the lock dial wheel 2 cannot move the main lock paddle 3, and the swinging member 5 can replace the main lock paddle 3 to abut against the lock dial wheel 2, and indirectly drive the main lock paddle 3 through the transmission cooperation of the first guide protrusion 602 and the first slide rail, so that the main lock tongue 4 is extended to complete the locking.

[0083] In one embodiment, a first avoidance notch 501 is formed on a side of the swinging member 5 close to the lock dial wheel 2 , and the driving portion 201 can move in the first avoidance notch 501 .

[0084] A second escape notch 502 is formed on the toggle portion 201 . The second escape notch 502 extends along the rotation direction of the toggle portion 201 , and the rotation axis of the main lock paddle 3 is disposed in the second escape notch 502 .

[0085] The first avoidance notch 501 and the second avoidance notch 502 can not only reduce the material used for the swing member 5 , but also prevent the swing member 5 from hindering the movement of the toggle portion 201 and the main lock paddle 3 .

[0086] In one embodiment, Figure 4As shown, the main lock tongue 4 includes a main lock bolt plate 401, a second slide groove 402 and a main lock paddle 3. The main lock bolt plate 401 is movably arranged in the housing 1. The second slide groove 402 is formed on the main lock bolt plate 401. A second guide protrusion 302 is formed on the main lock paddle 3, and the second guide protrusion 302 can slide along the second slide groove 402. When the first guide protrusion 602 moves to the locking position, the main lock tongue 4 can extend into the housing 1 under the action of the second guide protrusion 302. When the first guide protrusion 602 moves to the unlocking position, the main lock tongue 4 can be retracted from the housing 1 under the action of the second guide protrusion 302.

[0087] The door lock of the present invention drives the main lock tongue 4 to retract or extend through the cooperation between the second slide groove 402 and the second guide protrusion 302 . Compared with using a gear structure to drive the main lock tongue 4 to retract or extend, the cost is lower and the processing process is simpler.

[0088] In one embodiment, a third avoidance notch 503 is formed on the swinging member 5 , and when the first guide protrusion 602 moves to the locking position, the second guide protrusion 302 is located in the third avoidance notch 503 .

[0089] The third avoidance notch 503 can not only prevent the swinging member 5 from hindering the movement of the first guide protrusion 602 , but also save the material used for the swinging member 5 .

[0090] In one embodiment, Figure 5 As shown, the door lock further comprises an inclined bolt 7, an inclined bolt linkage piece 8 and an inclined bolt paddle 9. The inclined bolt 7 is telescopically arranged in the housing 1 and is located on a side of the main lock paddle 3 away from the lock head dial wheel 2.

[0091] The oblique tongue linkage piece 8 is coaxially arranged with the main lock paddle 3, and includes a second abutment portion 801 and a third abutment portion 802. The oblique tongue paddle 9 is hinged on the housing 1 and is located between the oblique tongue linkage piece 8 and the oblique tongue 7. The oblique tongue paddle 9 includes a fourth abutment portion 901 and a fifth abutment portion 902. Along the direction in which the oblique tongue 7 extends, the fourth abutment portion 901 is located downstream of the third abutment portion 802. The oblique tongue 7 includes a sixth abutment portion 701, and along the direction in which the lock tongue extends, the fifth abutment portion 902 is located downstream of the sixth abutment portion 701.

[0092] like Figures 1 to 3 As shown, when the lock wheel 2 is switched to the unlocked state, the toggle part 201 can first abut against the main lock wheel. When the main lock tongue 4 is retracted to half, the toggle part 201 abuts against the oblique tongue linkage piece 8. The oblique tongue linkage piece 8 can drive the oblique tongue paddle 9 to rotate in the opposite direction, and the oblique tongue 7 retracts.

[0093] In one embodiment, the locking tongue further comprises a connecting rod 702, a seventh abutting portion 703, an eighth abutting portion 704 and a spring 705. The connecting rod 702 is telescopically arranged in the housing 1, and the sixth abutting portion 701 is formed on the connecting rod 702. The seventh abutting portion 703 is sleeved on the connecting rod 702 and is located on a side of the fifth abutting portion 902 away from the sixth abutting portion 701, and the seventh abutting portion 703 is connected to the housing 1. The eighth abutting portion 704 is formed on the connecting rod 702 and is located on a side of the seventh abutting portion 703 away from the fifth abutting portion 902. The spring 705 is sleeved on the connecting rod 702 and is sandwiched between the seventh abutting portion 703 and the eighth abutting portion 704, and can drive the oblique tongue 7 to extend out of the housing 1 when the first guide protrusion 602 is in the locking position.

[0094] When the lock wheel 2 is switched to the unlocked state, the toggle part 201 can first abut against the main lock wheel. When the main lock tongue 4 is retracted to half, the toggle part 201 abuts against the oblique tongue linkage piece 8. The oblique tongue linkage piece 8 can drive the oblique tongue paddle 9 to rotate in the opposite direction. The sixth abutment part 701 can carry the connecting rod 702 to retract under the action of the fifth abutment part 902. The eighth abutment part 704 can move synchronously with the connecting rod 702 and compress the spring 705.

[0095] When the lock wheel 2 is switched to the locked state, the sixth abutment 701 loses the force of the fifth abutment 902 , and the spring 705 can extend through its own elastic restoring force to increase the distance between the seventh abutment 703 and the eighth abutment 704 , and the oblique tongue 7 extends from the housing 1 .

[0096] In one embodiment, the door lock also includes a handle paddle 10, which is coaxially arranged with the oblique tongue paddle 9, and a first tooth portion 101 is formed on the handle paddle 10, and the first tooth portion 101 includes a plurality of first teeth arranged at intervals along the edge of the handle paddle 10, and a second tooth portion 303 is formed on the main lock paddle 3, and the main lock paddle 3 includes a plurality of second teeth arranged at intervals, and the first tooth portion 101 is meshed with the second tooth portion 303.

[0097] The handle paddle 10 can rotate with the door handle, and the operator can drive the handle paddle 10 to rotate by rotating the door handle, so that the inclined tongue 7 is retracted, and the main lock paddle 3 is driven to rotate synchronously through the transmission cooperation of the first tooth portion 101 and the second tooth portion 303, thereby completing the unlocking.

[0098] To sum up, the door lock of the present invention uses a swinging member 5 instead of a gear structure to drive the movement of the main lock paddle 3. The strength requirement of the swinging member 5 is relatively low, and it can be made of sheet metal stampings, thereby reducing the manufacturing cost and improving the manufacturing efficiency of the swinging member 5. It can avoid the defects of complex structure and high cost caused by the use of a gear structure. The door lock of the present invention has a simple structure and low cost.

[0099] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A door lock, characterized in that: include: Housing (1); A lock dial wheel (2) is rotatably arranged on the housing (1) and is capable of rotating between a locked state and an unlocked state; A main lock paddle (3) is rotatably arranged on the housing (1) and is located on one side of the lock paddle wheel (2); A main lock tongue (4) is telescopically arranged on the housing (1) and is drivingly connected to the main lock paddle (3); A swinging member (5) is rotatably arranged on the housing (1), and a movable end is located on a side surface of the main lock paddle (3); A guide structure (6), comprising a first slide groove (601) formed on one of the main lock paddle (3) and the swing member (5), and a first guide protrusion (602) formed on the other of the main lock paddle (3) and the swing member (5), wherein the first guide protrusion (602) has a locking position relative to the first slide groove (601), and when the first guide protrusion (602) is in the locking position, the main lock paddle (3) can drive the main lock tongue (4) to extend out of the housing (1); The lock dial (2) can abut against the swing member (5) when switching from the unlocked state to the locked state, so that the first guide protrusion (602) moves to the locked position.

2. The door lock according to claim 1, characterized in that: The first guide protrusion (602) also has an unlocking position relative to the first sliding groove (601), and a first abutting portion (301) is formed on the main lock paddle (3); The lock dial (2) can abut against the first abutment portion (301) when switching from the locked state to the unlocked state, so that the main lock paddle (3) drives the main lock tongue (4) to retract, and the first guide protrusion (602) moves to the unlocked position.

3. The door lock according to claim 2, characterized in that: The lock dial (2) comprises a toggle portion (201) protruding from the rotation axis of the lock dial (2); when the first guide protrusion (602) is in the unlocking position, the distance between the first abutment portion (301) and the rotation axis of the lock dial (2) is greater than or equal to the radial length of the toggle portion (201) along the lock dial (2).

4. The door lock according to claim 3, characterized in that: The swinging part (5) is a stamping part.

5. The door lock according to claim 3, characterized in that: A first avoidance notch (501) is formed on one side of the swinging member (5) close to the lock dial wheel (2), and the moving part (201) can move in the first avoidance notch (501); and / or, A second avoidance notch (502) is formed on the toggle portion (201), the second avoidance notch (502) extending along the rotation direction of the toggle portion (201), and the rotation axis of the main lock paddle (3) is arranged in the second avoidance notch (502).

6. The door lock according to any one of claims 2 to 5, characterized in that: The main locking tongue (4) comprises: A main locking bolt plate (401) is movably arranged in the housing (1); A second sliding groove (402) is formed on the main locking plate (401); A second guide protrusion (302) is formed on the main lock paddle (3), and the second guide protrusion (302) can slide along the second slide groove (402). When the first guide protrusion (602) moves to the locking position, the main lock tongue (4) can extend into the shell (1) under the action of the second guide protrusion (302). When the first guide protrusion (602) moves to the unlocking position, the main lock tongue (4) can be retracted from the shell (1) under the action of the second guide protrusion (302).

7. The door lock according to claim 6, characterized in that: A third avoidance notch (503) is formed on the swinging member (5), and when the first guide protrusion (602) moves to the locking position, the second guide protrusion (302) is located in the third avoidance notch (503).

8. The door lock according to any one of claims 1 to 5, characterized in that: Also includes; An inclined tongue (7) is telescopically arranged in the housing (1) and is located on a side of the main lock paddle (3) away from the lock dial wheel (2); The oblique tongue linkage piece (8) is coaxially arranged with the main lock paddle (3), and comprises a second abutment portion (801) and a third abutment portion (802); The oblique tongue paddle (9) is hinged on the housing (1) and is located between the oblique tongue linkage piece (8) and the oblique tongue (7). The oblique tongue paddle (9) comprises a fourth abutment portion (901) and a fifth abutment portion (902). Along the direction in which the oblique tongue (7) extends, the fourth abutment portion (901) is located downstream of the third abutment portion (802). The oblique tongue (7) comprises a sixth abutment portion (701). Along the direction in which the lock tongue extends, the fifth abutment portion (902) is located downstream of the sixth abutment portion (701).

9. The door lock according to claim 8, characterized in that: The lock tongue also includes: A connecting rod (702), the connecting rod (702) being telescopically arranged in the housing (1), and the sixth abutting portion (701) being formed on the connecting rod (702); a seventh abutment portion (703) sleeved on the connecting rod (702) and located on a side of the fifth abutment portion (902) away from the sixth abutment portion (701), the seventh abutment portion (703) being connected to the housing (1); an eighth abutting portion (704) formed on the connecting rod (702) and located on a side of the seventh abutting portion (703) away from the fifth abutting portion (902); The spring (705) is sleeved on the connecting rod (702) and clamped between the seventh abutment portion (703) and the eighth abutment portion (704), and can drive the inclined tongue (7) to extend out of the housing (1) when the first guide protrusion (602) is in a locked position.

10. The door lock according to claim 8, characterized in that: The invention also comprises a handle paddle (10) which is coaxially arranged with the oblique tongue paddle (9); a first tooth portion (101) is formed on the handle paddle (10); the first tooth portion (101) comprises a plurality of first teeth arranged at intervals along the edge of the handle paddle (10); a second tooth portion (303) is formed on the main lock paddle (3); the main lock paddle (3) comprises a plurality of second teeth arranged at intervals; the first tooth portion (101) meshes with the second tooth portion (303).

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