Safety type bus door lock

Abstract

The utility model relates to the technical field of door locks, in particular to a safety door lock for a bus, which is characterized in that a door lock main body comprises an inner cover body and an outer cover body which are connected through a fixing piece and are fixed on a door plate; a lock disc is rotationally connected to the inner side of the inner cover body, an unlocking shifting piece and two sets of limiting shifting pieces are installed on the circumference of the lock disc, the distance between the limiting shifting pieces is equal to the distance between the unlocking shifting piece and the adjacent limiting shifting piece, and the unlocking shifting piece penetrates through an arc-shaped penetrating groove in the inner cover body. A shifting rod installed on the inner side of the rotary knob can drive the unlocking shifting piece to move in the arc-shaped penetrating groove. A lock cylinder on the outer cover body penetrates through the outer cover body, and a driving shifting piece is installed on the inner side of the lock cylinder and located between the first limiting shifting piece and the second limiting shifting piece. The two ends of a supporting rod of the locking assembly are rotationally connected to the end of the unlocking shifting piece and the inner end of a locking rod respectively, the inner end of the locking rod is sleeved with an elastic element, and the other end of the elastic element is fixed to the door plate. The door lock is wide in application scene and higher in safety.

Description

Technical Field

[0001] The present application relates to the technical field of door locks, and in particular to a safety door lock for buses. Background Art

[0002] Buses are the most commonly used means of transportation for people to travel. The driver needs to lock the vehicle when leaving the bus. Currently, most buses use folding, swing-out or swing-in door locks, and the door locks they use are also different. Different types of door locks need to be selected for different types of doors. And after locking the door from the outside, if there are still drivers and passengers in the car who cannot open the door from the inside, it is not easy to escape in case of an emergency, which poses certain safety hazards. Therefore, a safe bus door lock is urgently needed. Utility Model Content

[0003] In order to overcome the problems existing in the prior art, the present application provides a safe door lock for buses.

[0004] The present application provides a safe bus door lock adopting the following technical solution:

[0005] A safety door lock for buses comprises a door lock body, which comprises an inner cover body and an outer cover body, and the two are connected and fixed to the door panel by a fixing piece, wherein the lock core installed in the outer cover body can drive the lock disk inside the inner cover body to rotate to realize the locking and unlocking of the door panel by the locking assembly, and the knob installed outside the inner cover body can drive the lock disk to rotate to realize the unlocking of the door panel by the locking assembly; the inner cover body is located on the inner side of the door panel, wherein the rotation inside the inner cover body is connected with the lock disk, and the circumference of the lock disk is equipped with an unlocking paddle and two sets of limiting paddles, wherein the distance between the limiting paddles is the same as the distance between the unlocking paddle and the adjacent one The distances between the limit paddles are equal, and the unlocking paddle passes through the arc-shaped groove on the inner cover body, and the lever installed on the inner side of the knob can drive the unlocking paddle to move in the arc-shaped groove; the outer cover body, the outer cover body is located on the outer side of the door panel, the lock core on the outer cover body passes through the outer cover body and a driving paddle is installed on the inner side of the lock core, and the driving paddle is located between the first limit paddle and the second limit paddle; the locking assembly, the locking assembly includes a support rod and a locking rod, wherein the two ends of the support rod are respectively rotatably connected to the end of the unlocking paddle and the inner end of the locking rod, and an elastic element is mounted on the inner end of the locking rod, and the other end of the elastic element is fixed to the door panel.

[0006] By adopting the above technical solution, the door lock body includes an inner cover body and an outer cover body installed on both sides of the inside and outside of the vehicle door. When locking the door from the outside, the lock core is rotated by the key, and the driving paddle at the end of the lock core drives the rotation of two groups of limit paddles on the edge of the lock disk, thereby driving the locking and unlocking of the locking assembly. When opening the door from the inside, the knob on the inner cover body is rotated, and the lever on the knob moves in the arc-shaped groove to act on the unlocking paddle on the lock disk, thereby driving the lock disk to rotate to unlock the locking assembly. The support rod on the locking assembly is rotatably connected to the end of the lock rod, and the unlocking paddle on the lock disk can push the lock rod out when it rotates toward the lock rod, and at the same time compress the elastic element on the lock rod. When unlocking, the unlocking paddle on the lock disk is moved in the opposite direction of the lock rod, and the lock rod can be withdrawn in cooperation with the elastic element on the lock rod to achieve unlocking.

[0007] Preferably, the door panel comprises a glass body and a metal door frame, wherein the glass body and the metal door frame are provided with mounting holes adapted to the fixing members.

[0008] Preferably, the fixing members are fixing bolts, wherein the fixing bolts respectively connect the inner cover body and the outer cover body, and the inner cover body and the metal door frame.

[0009] Preferably, a mounting hole adapted to the fixing piece is provided on the inner cover body, and mounting grooves adapted to the fixing piece are provided on the inner sides of the outer cover body and the metal door frame.

[0010] By adopting the above technical solution, the fixing bolt at one end of the door lock body can penetrate the inner cover body and the glass body and the mounting groove on the outer cover body for installation, and the other end of the door lock is fixed by the fixing bolt through the mounting groove on the inner cover body and the metal door frame. The door lock body is fixed to the door panel from both ends, which has good stability, and the door lock body can be installed on the glass body, which can adapt to different installation environments.

[0011] Preferably, the driving paddle adopts an L-shaped structure, wherein a plate in the driving paddle parallel to the rotation direction of the lock cylinder is located between the limiting paddles.

[0012] By adopting the above technical solution, the L-shaped design of the driving paddle can better cooperate with the unlocking paddle and the limit paddle around the lock disk to ensure the stable and normal operation of the door lock body.

[0013] Preferably, a sealing structure is installed on the outer cover body, including an annular groove opened on one side of the outer cover body close to the door panel and a sealing ring filled therein, and a positioning ring body adapted to the through hole opened on the door panel is provided on the side of the annular groove close to the lock core.

[0014] By adopting the above-mentioned technical solution, the positioning ring on the outer cover body can pass through the installation hole opened on the glass body, and the sealing ring is filled in the annular groove where the outer cover body contacts the outer side of the glass body, so as to achieve the sealing of the outer side of the door lock body after the installation is completed, thereby preventing water seepage from the outer cover body during use and causing corrosion to the inside of the door lock body.

[0015] Preferably, there are grooves in a circular array around the knob, and an arc-shaped transition is adopted between the grooves and the edge of the knob.

[0016] By adopting the above technical solution, the grooves designed around the knob can improve the stability of the user's hand grip and increase the door opening speed in an emergency situation, and the arc transition set between the groove and the edge of the knob can improve the user's comfort.

[0017] Preferably, a dust cover is installed at the key opening at the outer end of the lock core, and the dust cover is rotatably connected to the outer cover body through a return spring, wherein a paddle protrusion is provided on one side of the dust cover in the opening direction thereof.

[0018] By adopting the above technical solution, a dust cover is installed at the key opening on the outer end of the lock core of the outer cover body through a return spring to reduce the entry of external magazines into the key opening, thereby improving its service life. In addition, a paddle protrusion is provided on the dust cover to facilitate the user to open the dust cover to lock and open the door.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. The door lock in this application has a simple structure and can be directly installed on the glass body of a bus door. It can also be used for various types of bus doors by locking with a locking rod. It has a wide range of application scenarios and has broad market prospects.

[0021] 2. The door lock body in this application can be locked and unlocked from the outside, and can also be unlocked from the inside when locked from the outside. In the event of an emergency, it is easy for internal personnel to escape, which reduces certain safety hazards and improves safety;

[0022] 3. The door lock body of the present application is provided with a sealing structure at the connection between the outer cover body and the door panel, and a dust cover is provided at the key port on the outside of the lock core, thereby improving the service life of the door lock through the sealing and waterproof design. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of a safety bus door lock installed on a door panel;

[0024] Figure 2 It is a schematic diagram of the outer structure of a safety bus door lock in the installed state;

[0025] Figure 3 It is a schematic diagram of the inner structure of a safety bus door lock in the installed state;

[0026] Figure 4 It is a schematic diagram of the outer side of the explosion structure of the inner cover body in a safety bus door lock;

[0027] Figure 5 The present invention is a schematic diagram of the inner side of the explosion structure of the inner cover body in a safety door lock for buses.

[0028] Explanation of the accompanying drawings: 1. Door lock body; 2. Inner cover; 21. Lock disk; 211. Unlocking paddle; 212. Limiting paddle; 22. Knob; 221. Paddle rod; 222. Groove; 23. Arc-shaped through groove; 3. Outer cover; 31. Lock core; 311. Drive paddle; 32. Positioning ring; 33. Dust cover; 331. Paddle protrusion; 4. Locking assembly; 41. Support rod; 42. Lock rod; 421. Elastic element; 5. Fixing part; 6. Door panel; 61. Glass body; 62. Metal door frame; 7. Mounting hole; 8. Mounting groove; 9. Sealing structure; 91. Annular groove; 92. Sealing ring. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-5 This application is described in further detail.

[0030] The embodiment of the present application discloses a safety door lock for buses.

[0031] Reference Figures 1 to 5A safety door lock for buses includes a door lock body 1, which includes an inner cover body 2 and an outer cover body 3, and the two are connected and fixed on a door panel 6 by a fixing member 5, wherein a lock core 31 installed in the outer cover body 3 can drive a lock disk 21 inside the inner cover body 2 to rotate to realize locking and unlocking of the door panel 6 by a locking assembly 4, and a knob 22 installed outside the inner cover body 2 can drive the lock disk 21 to rotate to realize unlocking of the door panel 6 by the locking assembly 4; an inner cover body 2, the inner cover body 2 is located on the inner side of the door panel 6, wherein the inner side of the inner cover body 2 is connected to a lock disk 21 for rotation, and an unlocking paddle 211 and two groups of limiting paddles 212 are installed on the circumference of the lock disk 21, wherein the distance between the limiting paddles 212 and the distance between the unlocking paddle 211 and an adjacent limiting paddle 212 are the same as the distance between the unlocking paddle 211 and an adjacent limiting paddle 212. The distances are equal, and the unlocking paddle 211 passes through the arc-shaped groove 23 on the inner cover body 2, and the lever 221 installed on the inner side of the knob 22 can drive the unlocking paddle 211 to move in the arc-shaped groove 23; the outer cover body 3, the outer cover body 3 is located on the outer side of the door panel 6, the lock core 31 on the outer cover body 3 passes through the outer cover body 3 and a driving paddle 311 is installed on the inner side of the lock core 31, and the driving paddle 311 is located between the first limiting paddle 212 and the second limiting paddle 212; the locking assembly 4, the locking assembly 4 includes a support rod 41 and a locking rod 42, wherein the two ends of the support rod 41 are respectively rotatably connected to the end of the unlocking paddle 211 and the inner end of the locking rod 42, and an elastic element 421 is mounted on the inner end of the locking rod 42, and the other end of the elastic element 421 is fixed on the door panel 6. The door lock body 1 includes an inner cover body 2 and an outer cover body 3 installed on both sides of the vehicle door. When locking the door from the outside, the lock cylinder 31 is rotated by a key, and the driving paddle 311 at the end of the lock cylinder 31 drives the rotation of two sets of limit paddles 212 on the edge of the lock disk 21, thereby driving the locking and unlocking of the lock assembly 4. When opening the door from the inside, the knob 22 on the inner cover body 2 is rotated, and the lever 221 on the knob 22 moves in the arc-shaped through groove 23 to act on the unlocking paddle 211 on the lock disk 21, thereby driving the lock disk 21 to rotate to unlock the lock assembly 4. The support rod 41 on the locking assembly 4 is rotatably connected to the end of the locking rod 42. When the unlocking paddle 211 on the lock disk 21 is rotated toward the locking rod 42, the locking rod 42 can be pushed out, and the elastic element on the locking rod 42 is compressed. When unlocking, the unlocking paddle 211 on the lock disk 21 is moved in the opposite direction of the locking rod 42, and the locking rod 42 can be withdrawn in cooperation with the elastic element 421 on the locking rod 42 to achieve unlocking.

[0032] Reference Figures 1 to 5The door panel 6 includes a glass body 61 and a metal door frame 62, wherein the glass body 61 and the metal door frame 62 are provided with mounting holes 7 adapted to the fixing member 5. The fixing member 5 adopts a fixing bolt, wherein the fixing bolts connect the inner cover 2 and the outer cover 3, and the inner cover 2 and the metal door frame 62 respectively. The inner cover 2 is provided with a mounting hole 7 adapted to the fixing member 5, and the inner side of the outer cover 3 and the metal door frame 62 is provided with a mounting groove 8 adapted to the fixing member 5. The fixing bolt at one end of the door lock body 1 can penetrate the inner cover 2 and the glass body 61 and the mounting groove 8 on the outer cover 3 for installation, and the other end of the door lock is fixed by the fixing bolt through the mounting groove 8 on the inner cover 2 and the metal door frame 62. The door lock body 1 is fixed to the door panel 6 from both ends, has good stability, and the door lock body 1 can be partially installed on the glass body 61, which can adapt to different installation environments.

[0033] Reference Figures 1 to 5 The driving paddle 311 adopts an L-shaped structure, wherein the plate in the driving paddle 311 parallel to the rotation direction of the lock cylinder 31 is located between the limiting paddles 212. The L-shaped design of the driving paddle 311 can better cooperate with the unlocking paddle 211 and the limiting paddle 212 around the lock plate 21 to ensure the stable and normal operation of the door lock body 1.

[0034] Reference Figures 1 to 5 The outer cover 3 is provided with a sealing structure 9, including an annular groove 91 provided on one side of the outer cover 3 close to the door panel 6 and a sealing ring 92 filled therein, and a positioning ring 32 adapted to the through hole provided on the door panel 6 is provided on the side of the annular groove 91 close to the lock core 31. The positioning ring 32 on the outer cover 3 can penetrate the mounting hole 7 provided on the glass body 61, and the sealing ring 92 is filled in the annular groove 91 where the outer cover 3 contacts the outer side of the glass body 61, so that the outer side of the door lock body 1 is sealed after the installation is completed, so as to prevent the corrosion of the inner part of the door lock body 1 by water seepage from the outer cover 3 during use.

[0035] Reference Figures 1 to 5 The knob 22 has grooves 222 arranged in a circular array around it, and the grooves 222 and the edges of the knob 22 are in an arc-shaped transition. The grooves 222 designed around the knob 22 can improve the stability of the user's hand grip, increase the door opening speed in an emergency, and the arc-shaped transition between the grooves 222 and the edges of the knob 22 can improve the user's comfort.

[0036] Reference Figures 1 to 5The key opening at the outer end of the lock core 31 is also covered with a dust cover 33, and the dust cover 33 is rotatably connected to the outer cover body 3 through a return spring, wherein a paddle protrusion 331 is provided on one side of the dust cover 33 located in the opening direction thereof. The dust cover 33 is rotatably installed at the key opening at the outer end of the lock core 31 of the outer cover body 3 through a return spring, which can reduce the external magazines from entering the key opening and improve its service life, and the paddle protrusion 331 is provided on the dust cover 33, which can facilitate the user to open the dust cover 33 to lock and open the door.

[0037] Working principle: When the user locks the door from the outside, the lock cylinder 31 is rotated by the key, and the driving paddle 311 at the end of the lock cylinder 31 drives the two sets of limit paddles 212 on the edge of the lock disk 21 to rotate, thereby driving the unlocking paddle 211 connected to the support rod 41 to rotate toward the lock rod 42 or away from the lock rod 42, thereby driving the locking assembly 4 to lock and unlock. When the user opens the door from the inside, by turning the knob 22 on the inner cover 2, the lever 221 on the knob 22 moves in the arc-shaped through groove 23 to drive the unlocking paddle 211 on the lock disk 21 to rotate toward the lock rod 42, thereby driving the locking assembly 4 to unlock. The support rod 41 in the locking assembly 4 is rotatably connected to the end of the locking rod 42. When the locking assembly 4 is working, the unlocking paddle 211 on the lock disk 21 is rotated toward the locking rod 42 to push out the locking rod 42 and compress the elastic element on the locking rod 42. When unlocking, the unlocking paddle 211 on the lock disk 21 is moved in the opposite direction of the locking rod 42, and in cooperation with the elastic element 421 on the locking rod 42, the locking rod 42 can be withdrawn to achieve unlocking.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A safe bus door lock, characterized by: include A door lock body (1), the door lock body (1) comprising an inner cover body (2) and an outer cover body (3), the inner cover body (2) and the outer cover body (3) being connected to each other by a fixing member (5) and fixed to a door panel (6), wherein a lock core (31) installed in the outer cover body (3) can drive a lock disk (21) inside the inner cover body (2) to rotate so as to achieve locking and unlocking of the door panel (6) by a locking assembly (4), and a knob (22) installed outside the inner cover body (2) can drive the lock disk (21) to rotate so as to achieve unlocking of the door panel (6) by the locking assembly (4); An inner cover body (2), the inner cover body (2) being located on the inner side of the door panel (6), wherein the inner side of the inner cover body (2) is rotatably connected to a lock plate (21), and an unlocking paddle (211) and two groups of limiting paddles (212) are circumferentially mounted on the lock plate (21), wherein the distance between the limiting paddles (212) is equal to the distance between the unlocking paddle (211) and an adjacent limiting paddle (212), and the unlocking paddle (211) passes through an arc-shaped through groove (23) on the inner cover body (2), and a lever (221) mounted on the inner side of the knob (22) is capable of driving the unlocking paddle (211) to move in the arc-shaped through groove (23); An outer cover body (3), the outer cover body (3) being located outside the door panel (6), a lock core (31) on the outer cover body (3) penetrating the outer cover body (3), a driving paddle (311) being installed on the inner side of the lock core (31), and the driving paddle (311) being located between a first limiting paddle (212) and a second limiting paddle (212); A locking assembly (4), the locking assembly (4) comprising a support rod (41) and a locking rod (42), wherein two ends of the support rod (41) are rotatably connected to the end of an unlocking paddle (211) and the inner end of the locking rod (42), and an elastic element (421) is mounted on the inner end of the locking rod (42), and the other end of the elastic element (421) is fixed to the door panel (6).

2. A safety bus door lock according to claim 1, characterized in that: The door panel (6) comprises a glass body (61) and a metal door frame (62), wherein the glass body (61) and the metal door frame (62) are provided with mounting holes (7) adapted to the fixing member (5).

3. A safety bus door lock according to claim 2, characterized in that: The fixing member (5) is a fixing bolt, wherein the fixing bolts respectively connect the inner cover body (2) and the outer cover body (3), and the inner cover body (2) and the metal door frame (62).

4. A safety bus door lock according to claim 3, characterized in that: The inner cover body (2) is provided with a mounting hole (7) adapted to the fixing member (5), and the inner sides of the outer cover body (3) and the metal door frame (62) are provided with mounting grooves (8) adapted to the fixing member (5).

5. A safety bus door lock according to claim 1, characterized in that: The driving paddle (311) adopts an L-shaped structure, wherein a plate in the driving paddle (311) parallel to the rotation direction of the lock core (31) is located between the limiting paddles (212).

6. A safety bus door lock according to claim 5, characterized in that: The outer cover body (3) is provided with a sealing structure (9), comprising an annular groove (91) provided on a side of the outer cover body (3) close to the door panel (6) and a sealing ring (92) filled therein, and a positioning ring body (32) adapted to a through hole provided on the door panel (6) is provided on a side of the annular groove (91) close to the lock core (31).

7. A safety bus door lock according to claim 1, characterized in that: The knob (22) is provided with grooves (222) in a circular array around the periphery, and an arc-shaped transition is adopted between the grooves (222) and the edge of the knob (22).

8. A safety bus door lock according to claim 1, characterized in that: The key opening at the outer end of the lock core (31) is also covered with a dust cover (33), and the dust cover (33) is rotatably connected to the outer cover body (3) through a return spring, wherein a paddle protrusion (331) is provided on one side of the dust cover (33) located in the opening direction thereof.

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