Door lock

Abstract

The utility model relates to a door lock, which has a locking state and an unlocking state and comprises a first mounting seat, a connecting rod pressure spring, an unlocking block pressure spring, a spring bolt, a seat body, a driving mechanism, a transmission pull rod, a locking block torsion spring, a clutch torsion spring, a second mounting seat, a first locking block, a second locking block and a clutch block, according to the embodiment of the utility model, the lock tongue is simultaneously locked through the first lock block and the second lock block, and when the lock tongue needs to be unlocked, the first lock block and the second lock block need to be unlocked at the same time, so that the door lock has higher safety performance.

Description

Technical Field

[0001] The utility model relates to a door lock. Background Art

[0002] With the continuous development of technology, door locks are becoming more and more popular in life. Most of the existing door locks include a lock shell and a lock tongue. The lock tongue is telescopically arranged in the lock shell, wherein the lock tongue can extend out of the lock shell through the lock tongue hole of the lock shell. The door lock is unlocked or locked by the extension and contraction of the lock tongue. However, the lock tongue in the existing door lock is locked by only one locking structure, so it cannot guarantee some rooms with high security requirements, such as studios and vaults. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the lock tongue in the existing door lock is locked by only one locking structure, so it cannot guarantee the safety of some rooms with high security requirements.

[0004] In order to solve the above technical problems, the utility model provides a door lock with a locked state and an unlocked state, which comprises: a first mounting seat, a connecting rod compression spring, an unlocking block compression spring, a lock tongue, a seat body, a driving mechanism, a transmission pull rod, a locking block torsion spring, a clutch torsion spring, a second mounting seat, a first locking block, a second locking block, and a clutch block; the seat body has a first direction and a second direction;

[0005] The seat body has an opening; the first mounting seat is arranged on the seat body, the lock tongue is slidably arranged on the first mounting seat along a first direction, one end of the connecting rod compression spring abuts against the lock tongue, and the other end of the connecting rod compression spring abuts against the first mounting seat; the lock tongue has an upper top column and a lower top column;

[0006] The first end of the first locking block is pivotally connected to the base body through a first pivot, the first locking block is provided with a locking block rear top column, one end of the locking block torsion spring is connected to the first locking block, and the other end of the locking block torsion spring is connected to the base body;

[0007] The driving mechanism is connected to the transmission pull rod, and the driving mechanism is used to drive the transmission pull rod to move along the second direction, and a limiting hole is provided on the transmission pull rod; the first locking block is provided with a locking block front push column, and the transmission pull rod is provided with a second pushing block for pushing the locking block front push column;

[0008] The second mounting seat is arranged on the seat body, the second locking block is slidably arranged on the second mounting seat along the first direction, one end of the unlocking block compression spring abuts against the second mounting seat, the other end of the unlocking block compression spring abuts against the second locking block, and a fourth limiting block is arranged on the second locking block; the second locking block is provided with a first pushing block for pushing the rear push column of the locking block;

[0009] The lower top column of the lock tongue and the second lock block at least partially overlap in the first direction;

[0010] The clutch block is slidably disposed on the seat body along the second direction, one end of the clutch torsion spring is connected to the seat body, and the other end of the clutch torsion spring is connected to the clutch block; a clutch block locking pin is provided on the clutch block, and the clutch block locking pin is clamped in the limiting hole;

[0011] When the door lock is in a locked state, the fourth limit block and the locking pin of the clutch block are at least partially misaligned in the first direction so that the second lock block presses against the lower top column of the lock tongue under the action of the unlocking block compression spring, and the second end of the first lock block overlaps with the upper top column of the lock tongue in the first direction so that the second end of the first lock block presses against the upper top column of the lock tongue;

[0012] When the door lock is in an unlocked state, the fourth limit block and the locking pin of the clutch block at least partially overlap in the first direction, and the second end of the first lock block is misaligned with the top column of the lock tongue in the first direction;

[0013] Wherein, in the process of switching from the locked state to the unlocked state, the driving mechanism drives the transmission pull rod to move along the second direction, so that the first pushing block contacts the rear top column of the locking block to drive the second end of the first locking block and the top column on the lock tongue to be misaligned in the first direction, and the fourth limit block and the clutch block locking pin at least partially overlap in the first direction.

[0014] Optionally, the first direction is perpendicular to the second direction.

[0015] Optionally, the driving mechanism includes: a motor, a mounting seat, a lead screw, and a sliding frame; the mounting seat is arranged on the seat body; the motor is arranged on the mounting seat; the motor is coaxially connected to the lead screw; the sliding frame is threadedly connected to the lead screw; and the transmission pull rod is connected to the sliding frame.

[0016] Optionally, the lock tongue upper push column, the connecting rod compression spring, and the lock tongue lower push column are arranged at intervals in the second direction.

[0017] Optionally, the driving mechanism, the transmission rod and the clutch block are arranged at intervals in the second direction.

[0018] Optionally, a slot matching with a lower top column of the lock tongue is formed on the second lock block toward the lock tongue.

[0019] Optionally, it further includes: an electrostatic induction chip; the electrostatic induction chip is arranged on the seat; the electrostatic induction chip is electrically connected to the driving mechanism

[0020] Compared with the prior art, the door lock of the present utility model has the following beneficial effects:

[0021] The embodiment of the utility model locks the lock tongue simultaneously by the first lock block and the second lock block. When the lock tongue needs to be unlocked, the first lock block and the second lock block need to be unlocked at the same time. Therefore, the door lock of the present application has higher safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of an unlocked state of an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of a locked state of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of an unlocked state of an embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the locked state of an embodiment of the utility model.

[0027] In the figure, 1, first mounting seat; 2, connecting rod compression spring; 3, unlocking block compression spring; 4, locking tongue; 5, seat body; 51, opening; 6, driving mechanism; 7, transmission pull rod; 71, limiting hole; 8, locking block torsion spring; 9, clutch torsion spring; 10, second mounting seat; 11, first locking block; 111, first end; 112, second end; 12, second locking block; 121, slot; 13, clutch block; 14, upper top column of locking tongue; 15, lower top column of locking tongue; 16, rear top column of locking block; 17, front top column of locking block; 18, second pushing block; 19, fourth limiting block; 20, first pushing block; 21, clutch block locking pin; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "outside", "between", "close to", "circumferential" and the like used in the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation on the present invention.

[0030] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] like Figure 1-Figure 5 As shown, a door lock of a preferred embodiment of the utility model has a locked state and an unlocked state, which includes: a first mounting seat 1, a connecting rod compression spring 2, an unlocking block compression spring 3, a lock tongue 4, a seat body 5, a driving mechanism 6, a transmission pull rod 7, a locking block torsion spring 8, a clutch torsion spring 9, a second mounting seat 10, a first locking block 11, a second locking block 12, and a clutch block 13; the seat body 5 has a first direction X and a second direction Y.

[0032] The seat body 5 has an opening 51; the first mounting seat 1 is arranged on the seat body 5, the locking tongue 4 is slidably arranged on the first mounting seat 1 along the first direction X, one end of the connecting rod compression spring 2 is abutted against the locking tongue 4, and the other end of the connecting rod compression spring 2 is abutted against the first mounting seat 1; the locking tongue 4 has an upper locking tongue top column 14 and a lower locking tongue top column 15.

[0033] The first end 111 of the first locking block 11 is pivotally connected to the base body 5 via a first pivot. A locking block rear top column 16 is provided on the first locking block 11. One end of the locking block torsion spring 8 is connected to the first locking block 11, and the other end of the locking block torsion spring 8 is connected to the base body 5.

[0034] The driving mechanism 6 is connected to the transmission rod 7, and the driving mechanism 6 is used to drive the transmission rod 7 to move along the second direction Y. The transmission rod 7 is provided with a limiting hole 71. The first locking block 11 is provided with a locking block front top column 17, and the locking block front top column 17 is arranged between the first end 111 and the second end 112. The transmission rod 7 is provided with a second pushing block 18 for pushing the locking block front top column 17.

[0035] The second mounting seat 10 is arranged on the seat body 5, and the second locking block 12 is slidably arranged on the second mounting seat 10 along the first direction X, one end of the unlocking block compression spring 3 abuts against the second mounting seat 10, and the other end of the unlocking block compression spring 3 abuts against the second locking block 12, and a fourth limiting block 19 is arranged on the second locking block 12; the second locking block 12 is provided with a first pushing block 20 for pushing the rear push column 16 of the locking block.

[0036] The lower top post 15 of the lock tongue and the second locking block 12 at least partially overlap in the first direction X.

[0037] See also Figure 2 and Figure 3 The clutch block 13 is slidably disposed on the seat body 5 along the second direction Y, one end of the clutch torsion spring 9 is connected to the seat body 5, and the other end of the clutch torsion spring 9 is connected to the clutch block 13; a clutch block 13 locking pin is provided on the clutch block 13, and the clutch block 13 locking pin is clamped in the limiting hole 71.

[0038] When the door lock is in a locked state, the fourth limit block 19 and the locking pin of the clutch block 13 are at least partially misaligned in the first direction X so that the second lock block 12 presses against the lower top column 15 of the lock tongue under the action of the unlocking block compression spring 3, and the second end 112 of the first lock block 11 overlaps with the upper top column 14 of the lock tongue in the first direction X so that the second end 112 of the first lock block 11 presses against the upper top column 14 of the lock tongue. The first end 111 of the first lock block 11 is an end away from the lock tongue 4, the second end 112 of the first lock block 11 is an end close to the lock tongue, and the first end 111 and the second end 112 are spaced apart along the first direction X.

[0039] When the door lock is in an unlocked state, the fourth limit block 19 and the locking pin of the clutch block 13 at least partially overlap in the first direction X, and the second end 112 of the first locking block 11 and the top column 14 on the lock tongue are misaligned in the first direction X.

[0040] Based on the above structure, when the door is in a closed state and not locked, the upper top post 14 of the lock tongue at the tail of the lock tongue 4 does not contact the first lock block 11, and the lock tongue 4 is in a state where rotation is not restricted: the principle is that the clutch block 13 is limited in position under the action of the torsion spring of the clutch block 13, and the locking pin of the clutch block 13 clamps the fourth limit block 19, so that the second lock block 12 no longer pushes the lower top post 15 of the lock tongue. In this state, the first push block 20 of the second lock block 12 lifts the rear top post 16 of the lock block, so that the second end 112 of the first lock block 11 rotates upward, so that the second end 112 of the first lock block 11 is tilted and does not contact the upper top post 14 of the lock tongue, so that the lock tongue 4 can move along the first direction X under the action of external force. After the door is opened, the lock tongue 4 pops out under the action of the connecting rod compression spring 2.

[0041] Among them, see Figure 2 and Figure 3 When the unlocked state is switched to the locked state, the driving mechanism 6 drives the transmission pull rod 7 to pull upward along the second direction Y, thereby pulling the locking pin of the clutch block 13 to drive the clutch block 13 to slide upward along the second direction Y synchronously, so that the locking pin of the clutch block 13 disengages from the fourth limiting block 19, so that the released second lock block 12 pops out toward the second lock block 12 along the first direction X under the action of the unlocking block compression spring 3. Similarly, the first pushing block 20 pops out toward the lock tongue 4 along the first direction X and then disengages from the contact with the rear top column 16 of the lock block in the second direction Y. The second end 112 of the first lock block 11 rotates downward along the second direction Y under the action of the lock block torsion spring 8. The second end 112 of the first lock block 11 limits the upper top column 14 of the lock tongue, so that the lock tongue 4 cannot move along the first direction X. Therefore, when the door is pushed on the outdoor side or the door is pulled on the indoor side, the lock tongue 4 is limited in the buckle plate and cannot be disengaged and is bolted, and the door lock is in a locked state. Among them, an inclined surface is provided on the side of the first pushing block 20 facing away from the locking tongue, and the inclination direction of the inclined surface intersects with the second direction, so that the first pushing block can push the rear push column 16 of the locking block to move along the second direction during the movement along the first direction X.

[0042] See also Figure 4 and Figure 5In the process of switching from the locked state to the unlocked state, when the door is in the closed state and locked, the driving mechanism 6 drives the transmission rod 7 to pull upward along the second direction Y, thereby pulling the front top column 17 of the locking block to link the first locking block 11 to rotate upward along the second direction Y, so that the second end 112 of the first locking block 11 is separated from the top column 14 of the lock tongue and does not contact. At this time, when the door is pushed from the outside, the lock tongue 4 is squeezed by the buckle plate and can rotate toward the outside and slide toward the inside of the lock body in the limited notch of the lock body side panel, so that the lock tongue 4 retracts and unlocks the door to realize opening. After the door is opened, the lock tongue 4 pops out under the action of the connecting rod compression spring 2. At the same time, when the lock tongue 4 slides backward, the lower top column 15 of the lock tongue squeezes the second lock block 12 to make the second lock block 12 move toward the clutch block 13 along the first direction X, so that the locking pin 152 of the clutch block 13 overlaps with the fourth limit block 19 in the first direction X again under the action of the clutch torsion spring 9, thereby limiting the position of the unlocking block, so that the rear top column 16 of the locking block links the first lock block 11 to remain in a lifted state, and the second end 112 of the locking block and the upper top column 14 of the lock tongue also remain in a non-contact state, so that the lock tongue 412 can rotate freely and retract, the lock body remains restored to the unlocked state, and the door is in a passage state until the next locking operation.

[0043] The present application locks the lock tongue 4 simultaneously by the first lock block 11 and the second lock block 12. When the lock tongue 4 needs to be unlocked, the first lock block 11 and the second lock block need to be unlocked at the same time. Therefore, the door lock of the present application has higher safety performance.

[0044] It can be understood that, in the process of switching from the locked state to the unlocked state, the driving mechanism 6 drives the transmission pull rod 7 to move along the second direction Y, so that the first pushing block 20 contacts the rear top column 16 of the locking block to drive the second end 112 of the first locking block 11 and the top column 14 on the lock tongue to be misaligned in the first direction X, and the fourth limit block 19 and the locking pin of the clutch block 13 at least partially overlap in the first direction X.

[0045] Furthermore, the first direction X and the second direction Y are perpendicular to each other.

[0046] Furthermore, the driving mechanism 6 includes: a motor, a mounting seat, a lead screw, and a sliding frame. The mounting seat is arranged on the seat body 5, and the motor is arranged on the mounting seat; the motor is coaxially connected to the lead screw, the sliding frame is threadedly connected to the lead screw, and the transmission pull rod 7 is connected to the sliding frame, and the lead screw is driven to rotate by the rotation of the motor, thereby driving the sliding frame on the lead screw to move along the second direction Y.

[0047] Furthermore, the lock tongue upper push column 14, the connecting rod compression spring 2, and the lock tongue lower push column 15 are arranged at intervals in the second direction Y.

[0048] Furthermore, the driving mechanism 6 , the transmission rod 7 and the clutch block 13 are arranged in the second direction Y at intervals.

[0049] Furthermore, the second locking block 12 is provided with a slot 121 adapted to the lower top column 15 of the locking tongue, and the setting of the slot 121 enables the locking tongue 4 and the second locking block 12 to be more stably positioned when the lower top column 15 of the locking tongue is engaged in the slot 121 .

[0050] Furthermore, the present application also includes: an electrostatic induction chip, which is arranged on the base 5 and is electrically connected to the driving mechanism 6. The electrostatic induction chip can electrostatically sense the palm to generate a signal, thereby driving the motor to rotate forward and reverse.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A door lock having a locked state and an unlocked state, characterized in that: include: A first mounting seat, a connecting rod compression spring, an unlocking block compression spring, a locking tongue, a seat body, a driving mechanism, a transmission pull rod, a locking block torsion spring, a clutch torsion spring, a second mounting seat, a first locking block, a second locking block, and a clutch block; the seat body has a first direction and a second direction; The seat body has an opening; the first mounting seat is arranged on the seat body, the lock tongue is slidably arranged on the first mounting seat along a first direction, one end of the connecting rod compression spring abuts against the lock tongue, and the other end of the connecting rod compression spring abuts against the first mounting seat; the lock tongue has an upper top column and a lower top column; The first end of the first locking block is pivotally connected to the base body through a first pivot, the first locking block is provided with a locking block rear top column, one end of the locking block torsion spring is connected to the first locking block, and the other end of the locking block torsion spring is connected to the base body; The driving mechanism is connected to the transmission pull rod, and the driving mechanism is used to drive the transmission pull rod to move along the second direction, and a limiting hole is provided on the transmission pull rod; the first locking block is provided with a locking block front push column, and the transmission pull rod is provided with a second pushing block for pushing the locking block front push column; The second mounting seat is arranged on the seat body, the second locking block is slidably arranged on the second mounting seat along the first direction, one end of the unlocking block compression spring abuts against the second mounting seat, the other end of the unlocking block compression spring abuts against the second locking block, and a fourth limiting block is arranged on the second locking block; the second locking block is provided with a first pushing block for pushing the rear push column of the locking block; The lower top column of the lock tongue and the second lock block at least partially overlap in the first direction; The clutch block is slidably disposed on the seat body along the second direction, one end of the clutch torsion spring is connected to the seat body, and the other end of the clutch torsion spring is connected to the clutch block; a clutch block locking pin is provided on the clutch block, and the clutch block locking pin is clamped in the limiting hole; When the door lock is in a locked state, the fourth limit block and the locking pin of the clutch block are at least partially misaligned in the first direction so that the second lock block presses against the lower top column of the lock tongue under the action of the unlocking block compression spring, and the second end of the first lock block overlaps with the upper top column of the lock tongue in the first direction so that the second end of the first lock block presses against the upper top column of the lock tongue; When the door lock is in an unlocked state, the fourth limit block and the locking pin of the clutch block at least partially overlap in the first direction, and the second end of the first lock block is misaligned with the top column of the lock tongue in the first direction; Wherein, in the process of switching from the locked state to the unlocked state, the driving mechanism drives the transmission pull rod to move along the second direction, so that the first pushing block contacts the rear top column of the locking block to drive the second end of the first locking block and the top column on the lock tongue to be misaligned in the first direction, and the fourth limit block and the clutch block locking pin at least partially overlap in the first direction.

2. The door lock according to claim 1, characterized in that: The first direction is perpendicular to the second direction.

3. The door lock according to claim 1, characterized in that: The driving mechanism includes: a motor, a mounting seat, a lead screw, and a sliding frame; the mounting seat is arranged on the seat body; the motor is arranged on the mounting seat; the motor is coaxially connected to the lead screw; the sliding frame is threadedly connected to the lead screw; and the transmission pull rod is connected to the sliding frame.

4. The door lock according to claim 1, characterized in that: The lock tongue upper push column, the connecting rod compression spring, and the lock tongue lower push column are arranged at intervals in the second direction.

5. The door lock according to claim 1, characterized in that: The driving mechanism, the transmission rod and the clutch block are arranged at intervals in the second direction.

6. The door lock according to claim 1, characterized in that: The second locking block is provided with a slot matched with the lower top column of the lock tongue at a position facing the lock tongue.

7. The door lock according to claim 1, characterized in that: Also includes: Electrostatic induction chip; The electrostatic induction chip is arranged on the base; The electrostatic induction chip is electrically connected to the driving mechanism.

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