CN107558830B - Electric suction lock - Google Patents

Abstract

The invention discloses an electric suction lock, comprising a lock frame, one end of the lock frame is recessed inward to form a first lock opening; The block assembly includes a block that is rotatably arranged in the lock frame and has a tendency to reset. The block is provided with a first lever that communicates with the outside of the lock frame and can move relative to the lock frame. The assembly includes a lock tongue that is rotatably arranged in the lock frame and has a reset tendency, a second lever is arranged on the lock tongue, and a second lock opening is formed on the lock tongue; it also includes another lock tongue arranged in the lock frame. An actuator at one end and a driving mechanism for driving the action of the actuator, the actuator includes a rack that can move linearly between the first lever and the second lever under the driving of the driving mechanism, and is provided with The third lever can act on the first lever or the second lever respectively on the rack to drive the block or the lock tongue to rotate to change the state of the electric suction lock.

Description

Electric suction lock

technical field

The invention relates to a lock, in particular to an electric suction lock.

Background technique

In the process of using the traditional car tailgate lock, the opening lever needs to be pulled or pushed through the wire drawing or the connecting rod, and the pawl in the tailgate lock is toggled by the opening lever. In this way, the tailgate lock is unlocked. The wire drawing is driven by the external power supply to drive the actuator, and finally the actuator pushes the opening lever to rotate to unlock the work.

There are many such tailgate locks disclosed in the prior art, such as the Chinese invention patent application "Electronically Controlled Automobile Tailgate Lock Body Device" with the application number of 201310067623.6 (application publication number CN103174342A), wherein the lock ring of the tailgate Push the ratchet, the ratchet rotates to a certain angle and engages with the pawl, and the door is locked; the console sends the unlock signal to the unlocking motor, the unlocking motor pushes the pawl, the pawl rotates at a certain angle and disengages the ratchet, and the door lock is opened; when the electrical appliance fails When the lock cannot be opened, manually operate the toggle arm to toggle the pawl, so that the pawl and the ratchet are disengaged from the engaging position, so that the door lock is opened.

Similarly, you can also refer to the Chinese invention patent "Automobile Tailgate Lock" with the patent number ZL201110321905.5 (authorized announcement number CN 102367715B), and the application number 201510599984.4 Chinese invention patent application "Automobile Tailgate Lock Opening Mechanism" (application publication number CN105113877A) Wait.

The above-mentioned type of tailgate lock has a relatively complex structure, a larger overall volume, and a larger installation space. At the same time, the closing of the tailgate is only completed through the engagement of the ratchet and the pawl, which will cause the problem of difficulty in completely closing the tailgate. Further improvement is required.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide an electric suction lock with a simple structure and high reliability, aiming at the problems existing in the above-mentioned prior art.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an electric suction lock, comprising:

a lock frame, one end of the lock frame is recessed inward to form a first lock opening;

The stop block assembly and the lock tongue assembly are adjacently arranged at one end in the lock frame, the stop block assembly includes a stop block that is rotatably arranged in the lock frame and has a reset tendency, and the stop block is provided with a connection with the lock frame. a first lever that communicates with the outside of the frame and can move relative to the lock frame, the lock bolt assembly includes a lock bolt that is rotatably arranged in the lock frame and has a reset tendency, and a second lever is arranged on the lock bolt, A second lock is formed on the lock tongue; it is characterized in that:

It also includes an actuator arranged at the other end of the lock frame and a driving mechanism for driving the actuator to act, and the actuator includes an actuator that can act between the first lever and the second lever under the driving of the driving mechanism. A rack that moves in a straight line, and a third lever that is arranged on the rack and can act on the first lever or the second lever respectively, thereby driving the block or the lock tongue to rotate to change the state of the electric suction lock.

In order to facilitate the transmission between the driving mechanism and the actuator, a transmission mechanism is provided between the driving mechanism and the actuator, and the transmission mechanism includes a worm driven to rotate by the driving mechanism, a worm gear engaged with the worm, and a worm driven to rotate by the worm gear. The gears mesh with the racks.

In order to improve the efficiency of the transmission mechanism, the worm is a multi-head worm, and the worm gear adopts a non-self-locking fit, which can easily drive each lever from the outside.

In order to facilitate automatic control of the operation of the drive mechanism, the lock frame is provided with a first microswitch for providing a half-lock signal to the drive mechanism and a second microswitch for providing a full-lock signal, and the stopper is also provided with a For the first trigger block matched with the first micro switch, the lock tongue is also provided with a second trigger block matched with the second micro switch.

In order to facilitate the setting of the micro switch, a support frame is arranged in the lock frame, a first accommodating groove and a second accommodating groove are arranged on the support frame, and the first micro switch is accommodated in the first accommodating groove. In the accommodating groove, the second micro switch is accommodated in the second accommodating groove.

In order to set the stopper and the lock tongue in a convenient way, the support frame is provided with a first positioning shaft hole and a second positioning shaft hole which pass through at intervals, and the stopper is provided with a first positioning shaft, and the lock tongue is provided with a first positioning shaft. A second positioning shaft is provided on the upper part, the first positioning shaft respectively passes through the first positioning shaft holes on the lock frame and the support frame, so that the block is rotatably arranged in the lock frame, and the second positioning shaft passes through the lock frame respectively. The second positioning shaft hole on the lock frame and the support frame enables the lock tongue to be rotatably arranged in the lock frame.

In order to trigger the half-lock signal and the full-lock signal respectively in different states, the first trigger block is located between the first lever and the first positioning shaft, and the second positioning shaft is located between the second trigger block and the second dial. Between the rods, the first positioning axis and the second positioning axis are arranged correspondingly and adjacently, the first trigger block and the second trigger block are arranged in a staggered position, and the direction of the first trigger block relative to the first positioning axis The directions of the second trigger block relative to the second positioning shaft are opposite to each other, and the first lever and the second lever correspond to each other and are respectively close to two opposite sides of the lock frame.

In order to keep the electric suction lock in different states, a first abutting portion is formed on the side of the block close to the lock tongue and protrudes toward the lock tongue. The block protrudes and forms a second abutting portion and a third abutting portion; when the electric suction lock is in a half-lock state, the first abutting portion and the third abutting portion abut against each other to restrict the lock tongue from rotating in the opening direction Reset; when the electric suction lock is in a fully locked state, the first abutting portion and the second abutting portion abut against each other to restrict the lock tongue from being rotated and reset in the opening direction.

In order to facilitate the reset of the actuator, it also includes a third microswitch for providing the drive mechanism with the reset information of the rack, and one end of the rack close to the second lever of the latch assembly is recessed to form a trigger recess, The trigger recess is matched with the third micro switch.

In order to limit the motion track of the actuator, a gear box is provided outside the actuator, and both ends of the rack of the actuator can pass through the gear box, and slide rails are formed on both sides of the rack to protrude toward the gear box respectively. , and corresponding positions of the gear box are respectively formed with sliding grooves which are recessed away from the rack, and the sliding rails are matched with the sliding grooves.

Compared with the prior art, the advantage of the present invention is that the actuator that drives the movement of the block assembly and the lock tongue assembly is set as a linear motion of the rack, thereby increasing the movement of the third lever on the rack. The driving force can greatly increase the force driving the first lever and the second lever, and improve the stability and reliability of the electric suction lock; reduce the energy loss of the driving mechanism to the car battery, and improve the reliability significantly; the structure is simple and the parts are conventional The actual drive has only one DC motor and gearbox mechanism, which can achieve versatility and reduce procurement costs; only three signal sources are processed, and the control is relatively simple.

Description of drawings

Fig. 1 is the structural representation of the electric suction lock embodiment of the present invention;

Fig. 2 is the schematic diagram of the electric suction lock of Fig. 1 concealing the cover plate of the gear box and the auxiliary lock frame;

Fig. 3 is the exploded structure schematic diagram of the electric suction lock embodiment of the present invention;

Fig. 4 is the sectional view of the electric suction lock embodiment of the present invention;

Figure 5-1 is a schematic diagram of the open state of the electric suction lock of the present invention;

Figure 5-2 is a schematic diagram of the semi-locked state of the electric suction lock of the present invention;

Figure 5-3 is a schematic diagram of the fully locked state of the electric suction lock of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

Referring to Figures 1 to 4, an electric suction lock, in an embodiment of the present invention, is mainly used for locking the tailgate of an automobile. Of course, it can also be used for locking other door bodies.

The electric suction lock includes a lock frame 1 , a support frame 2 located in the lock frame 1 , a block assembly 3 , a latch bolt assembly 4 , a drive mechanism 5 , a transmission mechanism 6 and an actuator 7 .

The lock frame 1 includes a main lock frame 11 and an auxiliary lock frame 12, which cooperate with each other to form a cavity therebetween. The support frame 2, the block assembly 3 and the lock bolt assembly 4 are arranged on the main lock frame 11 and the auxiliary lock frame. in the cavity between the racks 12 .

The support frame 2 is provided with a first positioning shaft hole 21 and a second positioning shaft hole 22 passing through at intervals, a first accommodating groove 23 adjacent to the first positioning shaft hole 21 , and a second positioning shaft hole 22 . The adjacent second accommodating grooves 24, in this embodiment, the first accommodating grooves 23 and the second accommodating grooves 24 are recessed from the surface facing the secondary lock frame 12 and toward the main lock frame 11, respectively. The first accommodating groove 23 accommodates a first micro switch 25 , and the second accommodating groove 24 accommodates a second micro switch 26 . The support frame 2 is also provided with a shock-absorbing pad 27 .

The block assembly 3 includes a block 31 , and the block 31 is provided with a first positioning shaft 32 , a first lever 33 and a first trigger block 34 . In this embodiment, the block 31 is located on the side of the support frame 2 facing the main lock frame 11 , that is, the block 31 is located between the support frame 2 and the main lock frame 11 , and away from the secondary lock frame 12 . One end of the first positioning shaft 32 is rotatably connected with the main lock frame 11, and the other end passes through the stopper 31 and then passes through the first positioning shaft hole 21 on the support frame 2, so that the stopper 31 is rotatably arranged on the support frame 2. Inside the lock frame 1. The first trigger block 34 is used to cooperate with the first micro switch 25 , and when the block 31 rotates to a certain position, the first trigger block 34 can trigger the first micro switch 25 . The first trigger block 34 can be located between the first lever 33 and the first positioning shaft 32, and the first lever 33 extends out of the lock frame 1 (the secondary lock frame 12), so that the The lever 33 is operated. A groove 121 is formed in the position corresponding to the first lever 33 on the secondary lock frame 12 , so that the first lever 33 has a certain movement space, so that the block 31 can be rotated by operating the first lever 33 . Alternatively, a hole can also be opened on the sub-lock frame 12 so as to contact the first lever 33 . As long as the first lever 33 can be operated outside the lock frame 1 .

The lock tongue assembly 4 includes a lock tongue 41 , and the lock tongue 41 and the stopper 31 are arranged adjacently and spaced apart. The lock tongue 41 is provided with a second positioning shaft 42 , a second lever 43 and a second trigger block 44 . In this embodiment, the lock tongue 41 is located on the side of the support frame 2 facing the main lock frame 11 , that is, the lock tongue 41 is located between the support frame 2 and the main lock frame 11 and away from the secondary lock frame 12 . One end of the second positioning shaft 42 is rotatably connected to the main lock frame 11, and the other end passes through the lock tongue 41 and then passes through the first positioning shaft hole 21 on the support frame 2, so that the lock tongue 41 is rotatably arranged on the Inside the lock frame 1. The second trigger block 44 is used to cooperate with the second micro switch 26 , and when the lock tongue 41 rotates to a certain position, the second trigger block 44 can trigger the second micro switch 26 . The second positioning shaft 42 may be located between the second trigger block 44 and the second lever 43 .

The first positioning shaft 32 and the second positioning shaft 42 can be arranged correspondingly and adjacently, while the first trigger block 34 and the second trigger block 44 are arranged in a staggered position, that is, the direction of the first trigger block 34 relative to the first positioning shaft 32, The directions of the two trigger blocks 44 relative to the second positioning shaft 42 are opposite to each other. As seen from FIG. 2 , the first trigger block 34 is located at the rear side of the first positioning shaft 32 , and the second trigger block 44 is located at the front side of the second positioning shaft 42 . The microswitches correspond to their respective trigger block positions. The first lever 33 and the second lever 43 correspond to each other and are respectively close to two opposite sides of the main lock frame 11 .

A first torsion spring 35 is disposed on the outer circumference of the first positioning shaft 32 , and one end of the first torsion spring 35 is disposed on the main lock frame 11 . A second torsion spring 45 is disposed on the outer periphery of the second positioning shaft 42 , and one end of the second torsion spring 45 is disposed on the main lock frame 11 . Thus, the initial force with which the stop block assembly 3 and the deadbolt assembly 4 can always interact.

On the side of the block 31 close to the lock tongue 41 , a first abutting portion 311 is formed protruding toward the lock tongue 41 , and a second abutting portion is formed on the side of the lock tongue 41 close to the stopper 31 , protruding toward the stopper 31 . 411 , the third abutting part 412 , the second abutting part 411 and the third abutting part 412 are all used to cooperate with the first abutting part 311 .

One end of the lock frame 1 is provided with the above-mentioned drive mechanism 5 , transmission mechanism 6 and actuator 7 , and the above-mentioned block assembly 3 and lock bolt assembly 4 are disposed at the opposite end of the lock frame 1 . A side of the locking tongue 41 close to the stopper 31 and an end away from the second lever 43 is recessed away from the stopper 31 to form a second locking opening 413 . Correspondingly, the main lock frame 11 is provided with a first lock slot 111 into which the lock rod 10 is inserted.

Among them, the driving mechanism 5 adopts a DC motor in this embodiment, and has an output shaft 51 at the output end. The transmission mechanism 6 includes a worm 61, a worm wheel 62 and a gear 63. The worm 61 is arranged on the output shaft 51 of the DC motor, preferably a multi-head worm, and the worm wheel 62 meshes with the worm 61, so that the worm wheel 62 can be driven to rotate when the DC motor is running. The gear 63 adopts a double gear, including a first gear 631 and a second gear 632. The first gear 631 is driven to rotate by the worm gear 62. In this embodiment, a coaxial third gear integrated with the worm gear 62 is provided. 621, so that the first gear 631 meshes with the third gear 621. The second gear 632 is coaxial with the first gear 631 .

The actuator 7 includes a rack 71 and a third lever 72. The rack 71 meshes with the second gear 632, so that the rotation of the second gear 632 can drive the rack 71 to move linearly.

The drive mechanism 5, the transmission mechanism 6 and the actuator 7 are provided with a gear box 8. The gear box 8 may include a gear box body 81 and a gear box cover plate 82, which are fastened together to form a cavity. The drive mechanism 5, the transmission mechanism 6 and the actuator 7 are accommodated in the cavity formed by the gear case body 81 and the gear case cover plate 82 . The gear box body 81 is arranged on the side away from the block assembly 3 and the lock tongue assembly 4 , and the gear box cover plate 82 is arranged on the side close to the stopper assembly 3 and the lock tongue assembly 4 . The worm wheel 62 is rotatably provided in the gear case 8 via the first gear shaft 622 , and the gear 63 is rotatably provided in the gear case 8 via the second gear shaft 633 . The rotation directions of the worm wheel 62 and the gear 63 are the same.

Both ends of the rack 71 of the actuator 7 extend out of the gear box 8 , so that the rack 71 moves relative to the gear box 8 . In order to prevent the rack 71 from moving and to easily define the movement track of the rack 71, sliding rails 711 are formed on both sides of the rack 71 to protrude toward the gear box body 81 and the gear box cover plate 82 respectively, while the gear box body 81 is formed. A slot 712 recessed away from the rack 71 is respectively formed at a position corresponding to the gear box cover 82 , and the slide rail 711 cooperates with the slot 712 to define the movement track of the rack 71 . The third lever 72 extends toward the block assembly 3 and the deadbolt assembly 4 , and can cooperate with the first lever 33 of the block assembly 3 and the second lever 43 of the deadbolt assembly 4 , respectively. When the rack 71 moves linearly, the third lever 72 is driven to move between the first lever 33 and the second lever 43 . One end of the rack 71 close to the second lever 43 of the deadbolt assembly 4 is recessed to form a triggering recess 73 , and a third microswitch 74 is provided on the gearbox cover 82 to trigger the recess 73 and the third microswitch. The switches 74 cooperate with each other. When other positions on the rack 71 except the triggering recess 73 correspond to the third microswitch 74 , the contact of the third microswitch 74 is pressed. When the rack 71 moves to the triggering recess 73 When the contact of the third micro switch 74 is released and the third micro switch 74 is triggered, it means that the rack 71 moves to the origin position (initial position). Alternatively, the triggering recess 73 can also be provided on the surface of the gear 63 or other convenient installation positions.

The first microswitch 25 and the third microswitch 74 are electrically connected to the drive mechanism 5, and the second microswitch 26 can be electrically connected to the vehicle interior control module, which is electrically connected to the drive mechanism 5, so that the vehicle interior control module can be electrically connected to the drive mechanism 5. The operation of the drive mechanism 5 is automatically controlled.

Between the main lock frame 11 and the gear box body 81, between the secondary lock frame 12 and the gear box cover plate 82, between the gear box body 81 and the gear box cover plate 82, between the drive mechanism 5 and the gear box 8, respectively The connection is made by a first screw 91 , a second screw 92 , a second screw 93 and a fourth screw 94 .

The working principle of the above electric suction lock is as follows:

1. Locking process:

First, referring to FIG. 5-1, through the action of external force, the first lever 33 is operated to turn the block 31 to rotate (at the same time, the lock tongue 41 can be driven to rotate), so that the first abutting portion 311 on the block 31 contacts the lock The third abutting portion 412 on the tongue 41, at this time, the rotation of the block 31 also just makes the first trigger block 34 on the block 31 no longer press against the contact of the first micro switch 25, thereby triggering the half Lock signal, the lock rod 10 is driven by the lock tongue 41 to enter the second lock hole 413 of the lock tongue 41 through the first lock hole 111 on the main lock frame 11, and it is in a semi-locked state. An abutting portion 311 abuts against the third abutting portion 412 on the lock tongue 41, so that the lock tongue 41 cannot rotate toward the opening direction to maintain the current state, see Figure 5-2; after the drive mechanism 5 receives the half-lock signal After starting, the rack 71 moves linearly from the original position to the second lever 43 of the latch assembly 4 until the third lever 72 on the rack 71 contacts the second lever 43 of the latch assembly 4; The bar 71 continues to move, and rotates the toggle latch 41 in the direction of full locking (and can drive the block 31 to rotate at the same time), until the first abutting portion 311 on the block 31 contacts the second abutting portion on the latch 41 411 and abut against each other. At this time, the second trigger block 44 on the lock tongue 41 is rotated just enough to press the contact point of the second micro switch 26, thereby triggering the full lock signal. At this time, the lock lever 10 is locked on the lock tongue 41. In the second lock port 413, the stopper 31 and the lock tongue 41 can not rotate toward the opening direction to maintain the current state because the two abutting parts abut against each other; finally, the drive mechanism 5 is controlled by the full lock signal to reverse The rack 71 moves in the direction away from the second lever 43 of the deadbolt assembly 4 until it stops at the origin position (the triggering recess 73 triggers the third microswitch 74 to control the drive mechanism 5 to stop), and the locking action End, see Figure 5-3.

2. Unlocking process:

First, referring to FIG. 5-3 , a signal (unlock signal) is input to the driving mechanism 5 through the vehicle internal control module, and the driving mechanism 5 is activated, so that the rack 71 moves linearly from the origin position to the first lever 33 of the block assembly 3 , until the third lever 72 on the rack 71 contacts the first lever 33 of the block assembly 3; after that, the rack 71 continues to move, turning the toggle block 31 in the direction of opening the lock (at the same time, it can drive the lock tongue. 41 rotation), so that the first abutting part 311 on the stopper 31 contacts the third abutting part 412 on the locking tongue 41, at this time, the rotation of the stopper 31 also just makes the first trigger block on the stopper 31. 34 presses the contact of the first micro switch 25, the second trigger block 44 on the lock tongue 41 no longer presses the contact of the second micro switch 26, the full lock signal is released, and the lock lever 10 is completely separated from the lock tongue 41 The second lock port 413 is opened, the driving mechanism 5 rotates in the reverse direction, and drives the rack 71 to return to the original position and then stops. The unlocking action is over, see Figure 5-1.

3. Emergency manual unlocking:

In the fully locked state, manually move the first lever 33 of the block assembly 3 in the unlocking direction, and the rotation of the block 31 and the lock tongue 41 makes the lock lever 10 and the second lock hole 413 of the lock tongue 41 disengage, that is, Push the door open. When the third lever 72 does not return to the original position and suddenly loses power, the door body can also be pushed open through the above actions, because the transmission mechanism 6 adopts a non-self-locking worm gear structure, so it can be unlocked by manual operation.

By setting the actuator 7 that drives the block assembly 3 and the latch assembly 4 to move in a linear motion of the rack 71 , the driving force of the third lever 72 on the rack 71 is increased, and the maximum increase in driving force can be achieved. The force of driving the first lever 33 and the second lever 43 improves the stability and reliability of the electric suction lock; reduces the energy loss of the driving mechanism 5 to the car battery, and the reliability is significantly improved; the transmission mechanism 6 adopts a multi-head worm, which improves the The transmission efficiency of the worm gear mechanism, and the worm gear mechanism has no self-locking design, can drive each lever externally; the structure is simple, the parts are conventional, the actual drive only has a DC motor and a gearbox mechanism, and it can achieve universality and reduce procurement costs. ; Only three signal sources are processed, and the control is relatively simple.

Claims (10)

1. An electric suction lock, comprising The lock frame (1) includes a main lock frame (11) and an auxiliary lock frame (12), the main lock frame (11) and the auxiliary lock frame (12) cooperate with each other and a cavity is formed between them, so One end of the lock frame (1) is recessed inward to form a first lock opening (111); A stopper assembly (3) and a lock tongue assembly (4) are adjacently arranged at one end in the lock frame (1), the stopper assembly (3) including a rotatable arrangement in the lock frame (1) and having A block (31) for a reset trend, the block (31) is provided with a first lever (33) that communicates with the outside of the lock frame (1) and can move relative to the lock frame (1). The assembly (4) comprises a lock tongue (41) rotatably arranged in the lock frame (1) and having a reset tendency, a second lever (43) is arranged on the lock tongue (41), and the lock tongue ( 41) is formed with a second lock (413); it is characterized in that: Also includes an actuator (7) disposed at the other end of the lock frame (1) and a driving mechanism (5) for driving the actuator (7) to act, the actuator (7) comprising a driving mechanism (5) capable of Driven by the gear rack (71) that performs linear motion between the first lever (33) and the second lever (43), and the rack (71) that can act on the first lever respectively (33) or the second lever (43), thereby driving the block (31) or the locking tongue (41) to rotate to change the third lever (72) of the electric suction lock state. 2. The electric suction lock according to claim 1, characterized in that: a transmission mechanism (6) is provided between the driving mechanism (5) and the implementing mechanism (7), and the transmission mechanism (6) comprises a The mechanism (5) drives a rotating worm (61), a worm gear (62) meshing with the worm (61), and a gear (63) driven by the worm gear (62) to rotate, the gear (63) and the rack (71) mesh. 3. The electric suction lock according to claim 2, wherein the worm (61) is a multi-head worm. 4. The electric suction lock according to any one of claims 1 to 3, characterized in that: the lock frame (1) is provided with a first microswitch for providing a half-lock signal to the driving mechanism (5). (25) A second microswitch (26) that provides a full lock signal, the stopper (31) is further provided with a first trigger block (34) that cooperates with the first microswitch (25), the The lock tongue (41) is also provided with a second trigger block (44) matched with the second micro switch (26). 5 . The electric suction lock according to claim 4 , wherein a support frame ( 2 ) is provided in the lock frame ( 1 ), and a first accommodating groove ( 23 ) is provided on the support frame ( 2 ). 6 . ) and a second accommodating groove (24), the first microswitch (25) is accommodated in the first accommodating groove (23), and the second microswitch (26) is accommodated in the into the second accommodating groove (24). 6 . The electric suction lock according to claim 5 , wherein the support frame ( 2 ) is provided with a first positioning shaft hole ( 21 ) and a second positioning shaft hole ( 22 ) at intervals, so that the The stopper (31) is provided with a first positioning shaft (32), the locking tongue (41) is provided with a second positioning shaft (42), and the first positioning shafts (32) respectively pass through the lock frame ( 1) and the first positioning shaft hole (21) on the support frame (2) so that the block (31) is rotatably arranged in the lock frame (1), and the second positioning shaft (42) passes through the lock frame respectively (1) and the second positioning shaft hole (22) on the support frame (2) so that the lock tongue (41) is rotatably arranged in the lock frame (1). 7. The electric suction lock according to claim 6, wherein the first trigger block (34) is located between the first lever (33) and the first positioning shaft (32), and the second positioning The shaft (42) is located between the second trigger block (44) and the second lever (43), the first positioning shaft (32) and the second positioning shaft (42) are correspondingly and adjacently arranged, and the A trigger block (34) and a second trigger block (44) are arranged in dislocation, the first trigger block (34) is relative to the direction of the first positioning axis (32), and the second trigger block (44) is relative to the second trigger block (44). The orientations of the positioning shafts (42) are opposite to each other, and the first lever (33) and the second lever (43) correspond to each other and are respectively close to two opposite sides of the lock frame (1). 8. The electric suction lock according to any one of claims 1 to 3, characterized in that: a side of the stopper (31) close to the lock tongue (41), protruding toward the lock tongue (41), is formed with a A first abutting part (311), a second abutting part (411) and a third abutting part are formed on the side of the locking tongue (41) close to the stopper (31) and protruding toward the stopper (31) (412); when the electric suction lock is in a half-lock state, the first abutting portion (311) and the third abutting portion (412) abut against each other to restrict the lock tongue (41) from rotating and resetting in the opening direction; when When the electric suction lock is in a fully locked state, the first abutting portion (311) and the second abutting portion (411) abut against each other to restrict the lock tongue (41) from rotating and restoring in the opening direction. 9. The electric suction lock according to any one of claims 1 to 3, characterized in that it further comprises a third microswitch (74) for providing the drive mechanism (5) with the reset information of the rack (71) , the end of the rack (71) close to the second lever (43) of the latch assembly (4) is recessed to form a trigger recess (73), the trigger recess (73) and the third micro switch (74) FIT. 10. The electric suction lock according to any one of claims 1 to 3, characterized in that: a gear box (8) is provided outside the actuator (7), and a rack ( Both ends of 71) can pass through the gear box (8), and slide rails (711) are formed on both sides of the rack (71) to protrude toward the gear box (8), and the corresponding positions of the gear box (8) are Sliding grooves (712) recessed away from the rack (71) are respectively formed, and the sliding rails (711) are matched with the sliding grooves (712).

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