Embedded surrounding door lock

Abstract

An embedded type enclosure door lock comprises an inner lock shell and an outer lock shell which are embedded in the inner side and the outer side of an enclosure door, the situation that the lock shells occupy the space of an aisle or a cab is avoided, a lock groove is formed in one side of the inner lock shell, a bottom plate and a lock plate are arranged in the inner lock shell, a transition groove is formed in the lock plate, an opening arm and a safety arm are arranged on the bottom plate, and a clamping plate and a locking claw are arranged on the lock plate. The opening arm is in transmission connection with the locking claw, locking or unlocking of the clamping plate is controlled through the locking claw and the opening arm, a plastic coating layer is arranged on the surface of the clamping plate, a shock pad is arranged at the position, corresponding to the groove bottom of the transition groove, of the locking plate, and when the enclosure door is closed, a lock pin on a door frame abuts against the shock pad through the clamping plate. The side, facing the opening arm, of the safety arm is provided with a back locking plate, the side, facing the safety arm, of the opening arm is provided with a safety groove matched with the back locking plate, the back locking plate abuts against the interior of the safety groove, so that the enclosure door lock is in a locked state, and the enclosure door lock is prevented from being opened from the outside.

Description

Technical Field

[0001] The utility model relates to a perimeter door lock, in particular to an embedded perimeter door lock. Background Art

[0002] Buses are the most commonly used means of transportation for people to travel. However, in recent years, there have been many cases of passengers harassing bus drivers across the country, and even illegal passengers attacking bus drivers and even snatching steering wheels, which has greatly affected the safe operation of buses, causing heavy casualties and financial losses. It has produced a bad social impact. In order to further strengthen the safety guarantee of urban automobile operation, the transportation department has issued standards for bus enclosures. Therefore, safe and reliable enclosure locks are a basic guarantee for the use of bus enclosures.

[0003] The existing door locks have a rigid shape, and the inner and outer handles both protrude from the surface of the lock body, invading the space between the aisle and the cab, which can easily cause the driver to bump into the handles when driving or the passengers to enter and exit the aisle; the interior also has a locking function. When the interior is locked, if the driver faints or other emergencies occur and he is unable to drive the vehicle, outsiders cannot quickly open the door and enter the driving area to rescue the driver; and the locking mechanism mostly adopts a lock tongue structure. This structure has a gap between the lock tongue and the door frame when the door is closed, causing the lock tongue and the door frame to collide and generate noise during driving. Summary of the invention

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide an embedded door lock which has a simple structure, a reasonable design, ensures the space between the cab and the aisle, has an externally activated unlocking function to open the door to rescue the driver and is accompanied by an alarm prompt, and effectively avoids noise between the door lock and the door frame.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an embedded door lock, comprising an inner lock shell and an outer lock shell embedded on both sides of the inner and outer sides of the door, so as to prevent the lock shell from occupying the space of the aisle or the cab, a lock slot is provided on one side of the inner lock shell, a card plate is rotatably provided in the inner lock shell corresponding to the lock slot position, a bottom plate is provided in the inner lock shell, a lock plate is provided in the inner lock shell near the lock slot position, a transition groove is provided on the lock plate corresponding to the lock slot, an opening arm is rotatably provided on the bottom plate, the card plate is rotatably provided on the lock plate, a stop claw matching the card plate is also provided on the lock plate, and the opening arm The locking plate is connected to the locking claw through the locking claw and the opening arm to control the locking or opening of the card plate. The surface of the card plate is provided with a plastic coating, and the bottom of the transition groove of the lock plate corresponding to the transition groove is provided with a shock-absorbing pad. When the enclosure door is closed, the locking pin on the door frame abuts against the shock-absorbing pad through the card plate, so as to avoid the enclosure door from generating noise when the vehicle is driving. The bottom plate is provided with a safety arm on one side of the opening arm, and an anti-locking plate is provided on the side of the safety arm facing the opening arm, and a safety groove matching the anti-locking plate is provided on the side of the opening arm facing the safety arm. The anti-locking plate abuts against the safety groove to put the enclosure door lock in a locked state to prevent the enclosure door lock from being opened from the outside.

[0006] Preferably, the surfaces of the inner lock shell and the outer lock shell are respectively provided with inner buckle grooves and outer buckle grooves, and inner buckle hands and outer buckle hands are rotatably arranged in the inner buckle grooves and the outer buckle grooves, and the inner buckle hands and the outer buckle hands are embedded in the inner buckle grooves and the outer buckle grooves to avoid the handles occupying the space of the aisle or the cab, and a push plate is provided at the end of the opening arm away from the clamping plate, and the inner buckle hand and the outer buckle hand are respectively provided with inner push arms and outer push arms abutting against the push arms, and the inner hand and the outer hand respectively drive the inner push arm and the outer push arm to push the push plate, thereby facilitating the opening of the door lock.

[0007] Preferably, a linkage arm is provided at the top of the lock plate between the stopping claw and the opening arm, the opening arm is provided with a linkage long hole on the side of the linkage arm, the linkage arm is provided with a linkage shaft positioned in the linkage long hole on the side of the linkage arm towards the opening arm, an active push block is provided on the side of the linkage arm towards the stopping claw, and a driven push block abutting against the active push block is provided on the side of the stopping claw towards the linkage arm, thereby ensuring the stability of the opening or locking of the door lock.

[0008] Preferably, the card plate is provided with a locking groove on the side facing the transition groove, the stopping claw is provided with a stop block on the side facing the card plate, and the card plate is provided with a clamping groove matching the stop block on the side facing the stopping claw, and the brake block is clamped in the clamping groove to ensure the structural stability of the card plate locking.

[0009] Preferably, a safety slider is slidingly provided in the inner lock shell, and an inner safety slide button connected to the safety slider is slidingly provided on the surface of the inner lock shell. An inner safety connecting rod is provided at the lower end of the safety sliding block, and an inner safety plate is provided on the side of the safety arm facing the safety slide button. The end of the inner safety plate is connected to the inner safety connecting rod. The inner safety slide button greatly facilitates the driver to lock or unlock the door in the cab. A limiting slot is provided on the inner safety plate, and a limiting plate matching the limiting slot is provided on the bottom plate. The limiting plate and the limiting slot are used to limit the safety arm during the locking or unlocking process, and in the process of tossing the safety arm, the collision between the limiting plate and the limiting slot is used to determine whether the safety arm is rotated into place.

[0010] Preferably, an outer safety warehouse is provided on the outer lock shell, and an unlocking protection cover is provided at the notch of the outer safety warehouse. The unlocking protection cover is made of transparent plastic for convenient observation of the status inside the outer safety warehouse. An outer safety plate is provided on the side of the safety arm facing the outer wire groove. An outer safety connecting rod is slidably arranged in the outer safety warehouse, and the end of the outer safety connecting rod passes through the outer wire groove and is connected to the outer safety connecting rod. The safety arm can be driven to rotate through the outer safety connecting rod to achieve the unlocking effect.

[0011] Preferably, a circuit board is provided between the inner lock shell and the outer lock shell, and an alarm and a contact switch are provided on the circuit board. The end of the contact switch passes through the outer safety compartment and abuts against the unlocking protective cover. When the unlocking protective cover is opened, the contact switch triggers the alarm to sound an alarm.

[0012] Preferably, a torsion spring is provided between the lock plate and the clamping plate, the stopping claw and the linkage arm, a torsion spring is provided between the base plate and the opening arm and the safety arm, a torsion spring is provided between the inner handle and the inner lock shell, and a torsion spring is provided between the outer handle and the outer lock shell.

[0013] The utility model has the advantages of simple structure, reasonable design, guaranteed space between the cab and the aisle, externally activated unlocking function to open the door to rescue the driver accompanied by an alarm prompt, and effective avoidance of noise between the door lock and the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the inner structure of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the outer structure of an embodiment of the utility model;

[0016] Figure 3 It is a front view of the inner side of an embodiment of the utility model;

[0017] Figure 4 This utility model Figure 3 AA section view;

[0018] Figure 5 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the bottom plate and the lock plate of the utility model;

[0020] Figure 7 It is a front view of the bottom plate of the utility model;

[0021] Figure 8 It is a front view of the lock plate of the utility model.

[0022] In the figure: 1, inner lock shell; 11, lock slot; 12, bottom plate; 121, limit plate; 13, lock plate; 131, transition slot; 132, shock pad; 14, inner buckle slot; 15, inner buckle hand; 151, inner push arm; 16, safety slider; 161, inner safety connecting rod; 17, inner safety slide button; 2, outer lock shell; 21, outer buckle slot; 22, outer buckle hand; 221, outer push arm; 23, outer safety compartment; 24, unlocking protection cover; 25, outer safety Safety connecting rod; 3, card plate; 31, locking groove; 32, card slot; 4, opening arm; 41, safety slot; 42, push plate; 43, linkage long hole; 5, stop claw; 51, driven push block; 52, stop block; 6, safety arm; 61, anti-locking plate; 62, inner safety plate; 621, limit notch; 63, outer safety plate; 7, linkage arm; 71, linkage shaft; 72, active push block; 8, circuit board; 81, alarm; 82, contact switch. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0024] Example:

[0025] like Figures 1 to 8 An embedded door lock shown in the figure includes an inner lock shell 1 and an outer lock shell 2 embedded on both sides of the inner and outer sides of the door, and the surfaces of the inner lock shell 1 and the outer lock shell 2 are respectively provided with an inner buckle groove 14 and an outer buckle groove 21, and the inner buckle hand 15 and the outer buckle hand 22 are rotatably arranged in the inner buckle groove 14 and the outer buckle groove 21. The inner buckle hand 15 and the outer buckle hand 22 are embedded in the inner buckle groove 14 and the outer buckle groove 21 to prevent the lock shell and the handle from occupying the space of the aisle or the cab.

[0026] A lock slot 11 is provided on one side of the inner lock shell 1, a clamping plate 3 is rotatably provided in the inner lock shell 1 corresponding to the lock slot 11, a bottom plate 12 is provided in the inner lock shell 1, a lock plate 13 is provided in the inner lock shell 1 near the lock slot 11, a transition groove 131 is provided on the lock plate 13 corresponding to the lock slot 11, an opening arm 4 is rotatably provided on the bottom plate 12, a push plate 42 is provided at one end of the opening arm 4 away from the clamping plate 3, an inner push arm 151 and an outer push arm 221 abutting against the push arm are provided on the inner buckle hand 15 and the outer buckle hand 22 respectively drive the inner push arm 151 and the outer push arm 221 to push the push plate 42, so as to facilitate the opening of the surrounding door lock.

[0027] The card plate 3 is rotatably arranged on the lock plate 13, and the lock plate 13 is also provided with a stop claw 5 matching the card plate 3. The opening arm 4 is transmission-connected with the stop claw 5, and the locking or opening of the card plate 3 is controlled by the stop claw 5 and the opening arm 4. A linkage arm 7 is provided on the top of the lock plate 13 between the stop claw 5 and the opening arm 4, and the opening arm 4 is provided with a linkage long hole 43 on the side of the linkage arm 7. The linkage arm 7 is provided with a linkage shaft 71 located in the linkage long hole 43 on the side of the linkage arm 7 facing the opening arm 4, and an active push block 72 is provided on the side of the linkage arm 7 facing the stop claw 5, and a driven push block 51 abutting against the active push block 72 is provided on the side of the stop claw 5 facing the linkage arm 7, thereby ensuring the stability of the door lock when opening or locking.

[0028] The surface of the card plate 3 is provided with a plastic coating, and the bottom of the transition groove 131 of the lock plate 13 is provided with a shock-absorbing pad 132. When the enclosure door is closed, the locking pin on the door frame abuts against the shock-absorbing pad 132 through the card plate 3, thereby preventing the enclosure door from generating noise when the vehicle is driving. The card plate 3 is provided with a locking groove 31 on the side facing the transition groove 131, and a stop block 52 is provided on the side facing the card plate 3 of the stop claw 5. The card plate 3 is provided with a clamping groove 32 matching the stop block 52 on the side facing the stop claw 5, and the brake block is clamped in the clamping groove 32 to ensure the structural stability of the locking of the card plate 3.

[0029] The bottom plate 12 is provided with a safety arm 6 on one side of the opening arm 4, and the safety arm 6 is provided with an anti-locking plate 6113 on the side facing the opening arm 4. The opening arm 4 is provided with a safety groove 41 matching the anti-locking plate 6113 on the side facing the safety arm 6. The anti-locking plate 6113 abuts against the safety groove 41, so that the door lock is in a locked state to prevent the door lock from being opened from the outside.

[0030] A safety slider 16 is slidably provided in the inner lock shell 1, and an inner safety slide button 17 connected to the safety slider 16 is slidably provided on the surface of the inner lock shell 1, and an inner safety connecting rod 161 is provided at the lower end of the safety slider 16, and an inner safety plate 62 is provided on the side of the safety arm 6 facing the safety slide button, and the end of the inner safety plate 62 is connected to the inner safety connecting rod 161. The inner safety slide button 17 greatly facilitates the driver to lock or unlock the surrounding door in the cab. A limiting slot 621 is provided on the inner safety plate 62, and a limiting plate 121 matching the limiting slot 621 is provided on the bottom plate 12. The limiting plate 121 and the limiting slot 621 are used to limit the safety arm 6 during the locking or unlocking process, and in the process of tossing the safety arm 6, the collision between the limiting plate 121 and the limiting slot 621 is used to determine whether the safety arm 6 is rotated into place.

[0031] An outer safety compartment 23 is provided on the outer lock shell 2, and an unlocking protection cover 24 is provided at the notch of the outer safety compartment 23. The unlocking protection cover 24 is made of transparent plastic, which is convenient for observing the status inside the outer safety compartment 23. An outer safety plate 63 is provided on the side of the safety arm 6 facing the outer wire groove. An outer safety connecting rod 25 is slidably provided in the outer safety compartment 23. The end of the outer safety connecting rod 25 passes through the outer wire groove and is connected to the outer safety connecting rod 25. The safety arm 6 can be driven to rotate through the outer safety connecting rod 25 to achieve the unlocking effect.

[0032] A circuit board 8 is provided between the inner lock shell 1 and the outer lock shell 2, and an alarm 81 and a contact switch 82 are provided on the circuit board 8. The end of the contact switch 82 passes through the outer safety compartment 23 and abuts against the unlocking protection cover 24. When the unlocking protection cover 24 is opened, the contact switch 82 triggers the alarm to sound an alarm.

[0033] Torsion springs are provided between the lock plate 13 and the clamping plate 3, the locking claw 5, and the linkage arm 7; torsion springs are provided between the base plate 12 and the opening arm 4 and the safety arm 6; a torsion spring is provided between the inner buckle hand 15 and the inner lock shell 1; and a torsion spring is provided between the outer buckle hand 22 and the outer lock shell 2.

[0034] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. An embedded door lock, characterized in that: The invention comprises an inner lock shell (1) and an outer lock shell (2) embedded in both sides of the inner and outer sides of the enclosure door, wherein a lock slot (11) is provided on one side of the inner lock shell (1), a clamping plate (3) is rotatably provided in the inner lock shell (1) at a position corresponding to the lock slot (11), a bottom plate (12) is provided in the inner lock shell (1), a lock plate (13) is provided in the inner lock shell (1) at a position close to the lock slot (11), a transition groove (131) is provided on the lock plate (13) at a position corresponding to the lock slot (11), an opening arm (4) is rotatably provided on the bottom plate (12), the clamping plate (3) is rotatably provided on the lock plate (13), and the lock The plate (13) is also provided with a stop claw (5) matching the card plate (3); the opening arm (4) is drivingly connected to the stop claw (5); a plastic coating layer is provided on the surface of the card plate (3); a shock-absorbing pad (132) is provided at the bottom of the transition groove (131) of the lock plate (13); a safety arm (6) is provided on one side of the opening arm (4); an anti-locking plate (61) (13) is provided on the side of the safety arm (6) facing the opening arm (4); and a safety groove (41) matching the anti-locking plate (61) (13) is provided on the side of the opening arm (4) facing the safety arm (6).

2. The embedded door lock according to claim 1, characterized in that: The surfaces of the inner lock shell (1) and the outer lock shell (2) are respectively provided with an inner buckle groove (14) and an outer buckle groove (21), and an inner buckle hand (15) and an outer buckle hand (22) are rotatably arranged in the inner buckle groove (14) and the outer buckle groove (21), and a push plate (42) is provided at one end of the opening arm (4) away from the clamping plate (3), and an inner push arm (151) and an outer push arm (221) are provided on the inner buckle hand (15) and the outer buckle hand (22) to abut against the push arm.

3. The embedded door lock according to claim 1, characterized in that: A linkage arm (7) is provided at the top of the lock plate (13) between the stop claw (5) and the opening arm (4); a linkage long hole (43) is provided on the side of the opening arm (4) facing the linkage arm (7); a linkage shaft (71) is provided on the side of the linkage arm (7) facing the opening arm (4) and is located in the linkage long hole (43); an active push block (72) is provided on the side of the linkage arm (7) facing the stop claw (5); and a driven push block (51) is provided on the side of the stop claw (5) facing the linkage arm (7) and is in contact with the active push block (72).

4. The embedded door lock according to claim 3, characterized in that: The clamping plate (3) is provided with a locking groove (31) on the side facing the transition groove (131), the stopping claw (5) is provided with a stopping block (52) on the side facing the clamping plate (3), and the clamping plate (3) is provided with a clamping groove (32) matching the stopping block (52) on the side facing the stopping claw (5).

5. The embedded door lock according to claim 1, characterized in that: A safety slider (16) is slidably disposed inside the inner lock housing (1), an inner safety slide button (17) connected to the safety slider (16) is slidably disposed on the surface of the inner lock housing (1), an inner safety connecting rod (161) is disposed at the lower end of the safety slider (16), an inner safety plate (62) is disposed on the side of the safety arm (6) facing the safety slide button, an end of the inner safety plate (62) is connected to the inner safety connecting rod (161), a limiting notch (621) is provided on the inner safety plate (62), and a limiting plate (121) matching the limiting notch (621) is provided on the bottom plate (12).

6. The embedded door lock according to claim 1, characterized in that: The outer lock housing (2) is provided with an outer safety compartment (23), a notch of the outer safety compartment (23) is provided with an unlocking protection cover (24), the unlocking protection cover (24) is made of transparent plastic, the safety arm (6) is provided with an outer safety plate (63) on the side facing the outer wire groove, an outer safety connecting rod (25) is slidably provided in the outer safety compartment (23), and an end of the outer safety connecting rod (25) passes through the outer wire groove and is connected to the outer safety connecting rod (25).

7. The embedded door lock according to claim 1, characterized in that: A circuit board (8) is provided between the inner lock housing (1) and the outer lock housing (2), and an alarm (81) and a contact switch (82) are provided on the circuit board (8), wherein an end of the contact switch (82) passes through the outer safety compartment (23) and abuts against the unlocking protection cover (24).

8. The embedded door lock according to claim 2, characterized in that: Torsion springs are provided between the lock plate (13) and the clamping plate (3), the stop claw (5), and the linkage arm (7); torsion springs are provided between the base plate (12) and the opening arm (4) and the safety arm (6); a torsion spring is provided between the inner buckle (15) and the inner lock shell (1); and a torsion spring is provided between the outer buckle (22) and the outer lock shell (2).

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