Protective door and passenger car

Abstract

This utility model relates to the field of vehicle technology and provides a protective door and a bus. The protective door includes a door frame and a door panel. A first locking part, a second locking part, and a third locking part are provided on one side of the door frame. One side of the door panel is pivotally connected to the other side of the door frame. The other side of the door panel is provided with a pneumatic lock that engages or unlocks with the first locking part, a first mechanical lock that engages or unlocks with the second locking part, and a second mechanical lock that engages or unlocks with the third locking part. A linkage rod is provided between the first and second mechanical locks. A handle is also provided on the door panel, and a drive component is provided on the handle for engaging or unlocking the second mechanical lock with the third locking part. The protective door has a triple locking mechanism, providing multiple safety guarantees for the locking effect, making it less likely to be accidentally opened due to external interference during high-speed driving or emergency braking, thus improving the safety and reliability of the protective door.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a protective door and a passenger bus. Background Technology

[0002] The safety protection design of the bus driver's cab is an important part of ensuring the safety of passengers and drivers. Especially in long-distance passenger transport, the safety door of the driver's cab should not only have an effective isolation function, but also have the function of preventing the safety door from being accidentally opened in the event of an accident or at high speed.

[0003] In the existing technology, the protective door of the bus cab generally only adopts a mechanical locking structure. However, during the operation, factors such as vibration and collision generated by the vehicle may cause the locking of the protective door to fail, resulting in an unstable closed state of the protective door and increasing the risk of the protective door being opened accidentally. Utility Model Content

[0004] The purpose of this utility model is to provide a protective door and a bus, which aims to improve the problem of poor locking effect of existing protective doors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A protective door, comprising:

[0007] The door frame has a first locking part, a second locking part, and a third locking part on one side; and

[0008] A door panel, one side of which is pivotally connected to the other side of the door frame, and the other side of the door panel is provided with a pneumatic lock that locks or unlocks with the first locking part, a first mechanical lock that locks or unlocks with the second locking part, and a second mechanical lock that locks or unlocks with the third locking part;

[0009] A linkage rod is provided between the first mechanical lock and the second mechanical lock. A handle is also provided on the door panel. The handle is provided with a drive component for engaging or unlocking the second mechanical lock with the third locking part.

[0010] Preferably, the first locking part is a lock groove structure, the output end of the pneumatic lock is provided with a lock head that is locked or unlocked with the lock groove structure, and the input end of the pneumatic lock is provided with a power unit and a control unit for driving the lock head to move.

[0011] Preferably, the second locking part is a locking rod structure;

[0012] The first mechanical lock includes a fixed frame, and a first swing part, a second swing part and a third swing part are provided on one side of the fixed frame. The first swing part is provided with a first lever that drives the second swing part to rotate, and the second swing part is provided with a second lever that drives the third swing part to rotate.

[0013] On the other side of the fixed frame, there is a swing block connected to the third swing part, and the bottom of the swing block has a notch for locking or separating from the locking rod structure.

[0014] Preferably, the third locking part has the same structure as the second locking part; the second mechanical lock has the same structure as the first mechanical lock;

[0015] The drive assembly is connected to the first swing part of the second mechanical lock, and the linkage rod is disposed between the first swing part of the first mechanical lock and the first swing part of the second mechanical lock.

[0016] Preferably, a first return spring is provided between the second swinging part and the third swinging part.

[0017] Preferably, the drive assembly includes a swing plate, a rotating rod, and a connecting rod. One end of the swing plate is disposed on the handle portion, and the other end of the swing plate is disposed on the rotating rod to drive the rotating rod to rotate. The connecting rod is disposed between the rotating rod and the first swing portion of the third locking portion.

[0018] Preferably, a second return spring is provided between the rotating rod and the door panel.

[0019] Preferably, the lock head is provided with a beveled wedge.

[0020] A passenger vehicle is also provided, including the aforementioned protective door.

[0021] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] 1. The protective door of this utility model is equipped with a triple locking mechanism consisting of a pneumatic lock, a first mechanical lock, and a second mechanical lock, which provides multiple security guarantees for the locking effect of the protective door. The pneumatic lock controls the locking and unlocking of the lock through air pressure, and is not easily affected by external forces such as vibration. This makes it less likely for the protective door to be accidentally opened due to external interference when driving at high speed or braking in an emergency, thereby improving the safety and reliability of the protective door. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the outer side of the protective door described in this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the protective door described in this utility model;

[0025] Figure 3 This is another partial structural schematic diagram of the protective door described in this utility model;

[0026] Figure 4 for Figure 2 A magnified view of a portion of point A in the middle;

[0027] Figure 5 for Figure 3 A magnified view of a portion of point B in the middle;

[0028] Figure 6 This is a schematic diagram of the first mechanical lock and the second locking part of the protective door described in this utility model;

[0029] Figure 7 This is a schematic diagram of the pneumatic lock and the first locking part of the protective door described in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Door frame;

[0032] 11. First locking part; 12. Second locking part; 13. Third locking part;

[0033] 2. Door panel;

[0034] 21. Pneumatic lock; 211. Lock head; 2111. Beveled wedge; 22. First mechanical lock;

[0035] 221. Fixed frame; 222. First swing part; 2221. First lever; 223. Second swing part;

[0036] 2231. Second lever; 224. Third swing part; 2241. Swing block; 22411. Notch;

[0037] 23. Second mechanical lock; 24. Handle;

[0038] 3. Linkage rod;

[0039] 4. Drive assembly; 41. Swing plate; 42. Rotating rod; 43. Connecting rod;

[0040] 5. First return spring; 6. Second return spring. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0042] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0044] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Example 1

[0046] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this embodiment provides a protective door, including a door frame 1 and a door panel 2. One side of the door frame 1 is provided with a first locking part 11, a second locking part 12 and a third locking part 13. One side of the door panel 2 is pivotally connected to the other side of the door frame 1. The other side of the door panel 2 is provided with a pneumatic lock 21 that locks or unlocks with the first locking part 11, a first mechanical lock 22 that locks or unlocks with the second locking part 12 and a second mechanical lock 23 that locks or unlocks with the third locking part 13. A linkage rod 3 is provided between the first mechanical lock 22 and the second mechanical lock 23. The door panel 2 is also provided with a handle 24, and the handle 24 is provided with a drive assembly 4 for driving the second mechanical lock 23 to lock or unlock with the third locking part 13.

[0047] In use, the user can operate the handle 24 to drive the second mechanical lock 23 and the third locking part 13 to lock or unlock. Since there is a linkage rod 3 between the first mechanical lock 22 and the second mechanical lock 23, the linkage rod 3 makes the first mechanical lock 22 and the second mechanical lock 23 move synchronously, and lock or unlock at the same time, ensuring the safety and convenience of the protective door.

[0048] Furthermore, to further enhance the reliability of the protective door, a pneumatic lock 21 structure is added. The pneumatic lock 21 enables automated control. Specifically, the first locking part 11 is a lock groove structure. The output end of the pneumatic lock 21 is equipped with a lock head 211 that engages or unlocks with the lock groove structure. The input end of the pneumatic lock 21 is equipped with a power unit and a control unit for driving the lock head 211. The power unit can be an air inlet / outlet valve, and the control unit is a push-button switch located in the driver's cab. The push-button switch controls the air inlet / outlet valve; opening the valve causes the lock head 211 to extend and engage with the lock groove structure; closing the valve causes the lock head 211 to retract, releasing the lock. The pneumatic lock 21 controls the locking and unlocking of the door using air pressure, making it less susceptible to external forces such as vibration, providing a more stable locking effect and preventing the protective door from being accidentally opened due to mechanical lock failure.

[0049] Thus, the triple locking mechanism of pneumatic lock 21, first mechanical lock 22 and second mechanical lock 23 provides multiple safety guarantees for locking the protective door, preventing the protective door from being accidentally opened during high-speed driving or emergency braking.

[0050] like Figure 5 and Figure 6 As shown, in this embodiment, the second locking part 12 is a locking rod structure; the first mechanical lock 22 includes a fixed frame 221, and a first swing part 222, a second swing part 223 and a third swing part 224 are provided on one side of the fixed frame 221. The first swing part 222 is provided with a first lever 2221 that drives the second swing part 223 to rotate, and the second swing part 223 is provided with a second lever 2231 that drives the third swing part 224 to rotate; the other side of the fixed frame 221 is provided with a swing block 2241 connected to the third swing part 224. The bottom of the swing block 2241 is provided with a notch 22411 that is locked or separated from the locking rod structure. The notch 22411 is inclined towards the outside of the driver's seat and opens outward when the protective door is opened.

[0051] The drive assembly 4 includes a swing plate 41, a rotating rod 42 and a connecting rod 43. One end of the swing plate 41 is disposed on the handle 24, and the other end of the swing plate 41 is disposed on the rotating rod 42 to drive the rotating rod 42 to rotate. The connecting rod 43 is disposed between the rotating rod 42 and the first swing part 222 of the third locking part 13.

[0052] Furthermore, the third locking part 13 has the same structure as the second locking part 12; the second mechanical lock 23 has the same structure as the first mechanical lock 22; the drive assembly 4 is connected to the first swing part 222 of the second mechanical lock 23, and the linkage rod 3 is disposed between the first swing part 222 of the first mechanical lock 22 and the first swing part 222 of the second mechanical lock 23.

[0053] Specifically, when the handle 24 is pressed, the swing plate 41 drives the rotating rod 42 to rotate clockwise, which in turn drives the connecting rod 43 to pull the first swing part 222 of the second mechanical lock 23, causing the first swing part 222 to rotate counterclockwise. The first lever 2221 of the first swing part 222 pushes the second swing part 223 to rotate clockwise. When the second swing part 223 rotates, the second lever 2231 pushes the third swing part 224 to rotate counterclockwise, thereby causing the swing block 2241 set on the third swing part 224 to rotate synchronously. The notch 22411 of the swing block 2241 separates from the lock rod structure, realizing unlocking. Conversely, when the handle 24 is pulled, the second mechanical lock 23 is locked. Under the action of the linkage rod 3, the first swing part 222 of the first mechanical lock 22 and the first swing part 222 of the second mechanical lock 23 move synchronously, ensuring that the first mechanical lock 22 and the second mechanical lock 23 lock or unlock synchronously.

[0054] like Figure 4 and Figure 5 As shown, in this embodiment, a first return spring 5 is provided between the second swing part 223 and the third swing part 224. A second return spring 6 is provided between the rotating rod 42 and the door panel 2.

[0055] When unlocking, pressing the handle 24 causes the second swing part 223 to rotate clockwise, and the third swing part 224 to rotate counterclockwise, stretching the first return spring 5; the rotating rod 42 rotates clockwise, stretching the second return spring 6. When the handle 24 is released, the first return spring 5 and the second return spring 6 return to their original deformation, thereby resetting all components. The first mechanical lock 22 and the second mechanical lock 23 automatically return to the locked state, making operation more convenient.

[0056] Furthermore, under the combined action of the first return spring 5 and the second return spring 6, the locking state of the first mechanical lock 22 and the second mechanical lock 23 is more stable. The spring force makes the first mechanical lock 22 and the second mechanical lock 23 tend to be locked, preventing accidental unlocking.

[0057] like Figure 7 As shown, in this embodiment, the lock head 211 is provided with an inclined wedge surface 2111. By providing the inclined wedge surface 2111, the influence of fitting error can be reduced. When the lock head 211 is inserted into the lock groove, it gradually and adaptively adjusts its fitting position with the lock groove as the lock head 211 extends into it, reducing the situation of jamming or failure to lock smoothly caused by error, thereby achieving a more secure and stable locking effect.

[0058] Example 2

[0059] A second aspect of this embodiment also provides a passenger vehicle including the protective door described in Embodiment 1. The triple locking mechanism of the protective door enhances the stability of its locking and effectively avoids the risk of accidental unlocking.

[0060] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A protective door, characterized in that, include: The door frame has a first locking part, a second locking part, and a third locking part on one side; and A door panel, one side of which is pivotally connected to the other side of the door frame, and the other side of the door panel is provided with a pneumatic lock that locks or unlocks with the first locking part, a first mechanical lock that locks or unlocks with the second locking part, and a second mechanical lock that locks or unlocks with the third locking part; A linkage rod is provided between the first mechanical lock and the second mechanical lock. A handle is also provided on the door panel. The handle is provided with a drive component for engaging or unlocking the second mechanical lock with the third locking part.

2. The protective door according to claim 1, characterized in that: The first locking part is a lock groove structure. The output end of the pneumatic lock is provided with a lock head that is locked or unlocked with the lock groove structure. The input end of the pneumatic lock is provided with a power unit and a control unit for driving the lock head to move.

3. The protective door according to claim 1, characterized in that: The second locking part is a locking rod structure; The first mechanical lock includes a fixed frame, and a first swing part, a second swing part and a third swing part are provided on one side of the fixed frame. The first swing part is provided with a first lever that drives the second swing part to rotate, and the second swing part is provided with a second lever that drives the third swing part to rotate. On the other side of the fixed frame, there is a swing block connected to the third swing part, and the bottom of the swing block has a notch for locking or separating from the locking rod structure.

4. The protective door according to claim 3, characterized in that: The third locking part has the same structure as the second locking part; the second mechanical lock has the same structure as the first mechanical lock. The drive assembly is connected to the first swing part of the second mechanical lock, and the linkage rod is disposed between the first swing part of the first mechanical lock and the first swing part of the second mechanical lock.

5. The protective door according to claim 3, characterized in that: A first return spring is provided between the second swing part and the third swing part.

6. The protective door according to claim 4, characterized in that: The drive assembly includes a swing plate, a rotating rod, and a connecting rod. One end of the swing plate is disposed on the handle portion, and the other end of the swing plate is disposed on the rotating rod to drive the rotating rod to rotate. The connecting rod is disposed between the rotating rod and the first swing portion of the third locking portion.

7. The protective door according to claim 6, characterized in that: A second return spring is provided between the rotating rod and the door panel.

8. The protective door according to claim 2, characterized in that: The lock head is provided with a beveled wedge.

9. A passenger vehicle, characterized in that, Including the protective door as described in any one of claims 1-8.

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