Fire fighting truck passenger compartment door

Abstract

The utility model relates to a fire fighting truck passenger compartment door, and relates to the technical field of special vehicles, the fire fighting truck passenger compartment door comprises a vehicle frame and a vehicle door arranged on the vehicle frame, the vehicle door and the vehicle frame are rotatably arranged through a rotating shaft, an extension ladder is rotatably arranged on the vehicle frame, and a transmission part used for driving the extension ladder to rotate is arranged on the rotating shaft; a transmission assembly used for driving the extension ladder to extend is arranged on the vehicle frame, and a ladder storage groove used for containing the extension ladder is formed in the vehicle door. The utility model has the effect of improving the convenience for firemen to get on and off the passenger room.

Description

Technical Field

[0001] The present application relates to the technical field of special vehicles, and in particular to a crew compartment door of a fire truck. Background Art

[0002] As an emergency rescue vehicle, the fire truck transports firefighters to the disaster site and provides them with a variety of tools to perform disaster relief tasks. In special circumstances, it can also transport the wounded through the passenger compartment. It is one of the important tools to ensure the effective implementation of rescue work.

[0003] The door of the crew compartment of a fire truck is usually provided with window glass. Since the crew compartment of a fire truck is at a high distance from the ground, two pedals are usually provided in the vertical direction of the frame below the door. However, when firefighters enter the crew compartment, they need to hold the door, which causes inconvenience for firefighters to get in and out of the crew compartment. Utility Model Content

[0004] In order to improve the inconvenience of firefighters getting in and out of the crew compartment, the present application provides a fire truck crew compartment door.

[0005] The present application provides a fire truck crew compartment door adopting the following technical solution:

[0006] A crew compartment door for a fire truck comprises a frame and a door arranged on the frame, wherein the door and the frame are rotatably arranged via a rotating shaft, a telescopic ladder is rotatably provided on the frame, a transmission member for driving the telescopic ladder to rotate is provided on the rotating shaft, a transmission assembly for driving the telescopic ladder to extend is provided on the frame, and a ladder storage slot for placing the telescopic ladder is provided on the door.

[0007] By adopting the above technical solution, when the car door is opened, the rotating shaft on the car door rotates and drives the telescopic ladder to rotate downward through the transmission member. While the telescopic ladder rotates downward, the telescopic ladder extends. When the car door stops opening, the telescopic ladder connects the ground and the passenger compartment, and firefighters can enter the passenger compartment through the telescopic ladder. When the door is closed, the transmission assembly drives the telescopic ladder to retract, and the rotating shaft drives the telescopic ladder to flip upward into the ladder storage slot through the transmission member, thereby improving the convenience for firefighters to go up and down the passenger compartment.

[0008] In a specific possible implementation scheme, the transmission member includes bevel gear 1, a rotating rod, and bevel gear 2. The bevel gears are coaxially arranged on the rotating shaft, the rotating rod is rotatably arranged on the frame, the telescopic ladder is fixed to the rotating rod, the bevel gear 2 is coaxially arranged on the rotating rod, and the bevel gear 2 is meshed with the bevel gear 1.

[0009] By adopting the above technical solution, when the car door is opened, the car door rotating shaft drives the bevel gear 1 to rotate, the bevel gear 1 drives the rotating rod to rotate through the bevel gear 2, and the rotating rod drives the telescopic ladder to rotate downward, thereby realizing the transmission between the rotating shaft and the telescopic ladder.

[0010] In a specific possible implementation mode, the telescopic ladder and the rotating rod are fixedly arranged via a connecting plate, and the connecting plate is arranged perpendicular to the telescopic ladder.

[0011] By adopting the above technical solution, when the car door is opened, the telescopic ladder rotates downward and extends out from the ladder storage slot; when the car door is closed, the telescopic ladder flips upward into the ladder storage slot, and the connecting plate flips upward, thereby realizing the storage of the telescopic ladder and reducing the space occupied by the telescopic ladder.

[0012] In a specific possible implementation scheme, the telescopic ladder includes a ladder 1 and a ladder 2, the ladder 1 is fixedly arranged with the transmission rod, and the ladder 2 is inserted into the ladder 1 and slidably arranged with the ladder 1;

[0013] The transmission assembly includes a driving rod, a bevel gear three, and a connecting piece. One end of the driving rod is rotatably connected to the frame, and the other end of the driving rod passes through the rotating rod and is rotatably arranged with the rotating rod. The axis of the driving rod is colinear with the axis of the rotating rod. The bevel gear three is coaxially arranged on the driving rod. The bevel gear three is meshed with the bevel gear one and the rotation direction of the bevel gear three is opposite to that of the bevel gear two. The driving rod drives the ladder two to slide along the ladder one through the connecting piece.

[0014] By adopting the above technical solution, when the car door is opened, bevel gear one drives bevel gear two to rotate and at the same time drives bevel gear three to rotate, bevel gear three drives the driving rod to rotate inside the rotating rod, and the driving rod drives ladder two to extend out of ladder one through the connecting piece, thereby realizing the extension of the telescopic ladder.

[0015] In a specific possible implementation scheme, the connecting member includes a sprocket 1 coaxially arranged on the driving rod, a gear is rotatably provided on the ladder 1, a sprocket 2 is rotatably provided on the ladder 1 for driving the gear to rotate, the sprocket 1 and the sprocket 2 are connected by a chain 1, and a rack meshing with the gear is provided on the ladder 2, and the rack is arranged along the sliding direction of the ladder 2.

[0016] By adopting the above technical solution, when the driving rod rotates, the driving rod drives sprocket one to rotate, sprocket one drives sprocket two to rotate through the chain, sprocket two drives the gear to rotate, and the gear drives ladder two to extend and retract inside ladder one through the rack, thereby realizing the transmission of the driving shaft and ladder two.

[0017] In a specific possible implementation scheme, the ladder is provided with a baffle for shielding the ladder storage slot.

[0018] By adopting the above technical solution, when ladder two is retracted into ladder one and ladder one is inserted into the ladder storage slot, the baffle will cover the ladder storage slot, effectively preventing ladder one from being exposed, thereby making the car door more beautiful.

[0019] In a specific possible implementation scheme, the vehicle door is provided with a scraper strip for sliding on the outside of the vehicle window glass, the scraper strip is provided with an adsorption block 1, and an adsorption block 2 for adsorbing the adsorption block 1 is slidably provided on the inner side wall of the vehicle window glass.

[0020] By adopting the above technical solution, when it rains, by moving the adsorption block 2 inside the car window glass, the adsorption block 2 drives the scraper to slide on the outside of the car window glass through the adsorption of the adsorption block 1, and the rainwater attached to the car window glass is wiped off, thereby improving the field of vision of the people in the passenger compartment.

[0021] In a specific possible implementation manner, the vehicle door is provided with a guide groove for the scraper strip to be inserted and slidably arranged.

[0022] By adopting the above technical solution, the scraper bar slides in the guide groove, thereby improving the sliding stability of the hanging bar.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the door is opened, the rotating shaft drives the telescopic ladder to rotate downward through the transmission member. When the telescopic ladder rotates downward, the rotating member drives the telescopic ladder to extend through the transmission assembly. When the door stops opening, one end of the telescopic ladder is placed on the ground, and firefighters can use the telescopic ladder to enter the passenger compartment, thereby improving the convenience of firefighters getting on and off the passenger compartment. When the door is closed, the rotating shaft drives the telescopic ladder to flip upward, and the telescopic ladder shrinks at the same time. When the door is completely closed, the telescopic ladder is inserted into the ladder storage slot, thereby realizing the storage of the telescopic ladder and reducing the space occupied by the telescopic ladder;

[0025] 2. When the fire truck is driving on a rainy day, the firefighter moves the adsorption block 2, and the adsorption block 2 adsorbs the adsorption block 1 and drives the scraper to slide on the window glass, thereby scraping off the rain on the window glass and improving the field of vision of the people in the passenger compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a fire truck crew compartment door according to an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram used to show the structure of the staircase storage tank.

[0028] Figure 3 is along Figure 1 Section view along line AA.

[0029] Figure 4 yes Figure 3 Enlarged view of part B in the middle.

[0030] Figure 5 yes Figure 3 Enlarged view of part C in the middle.

[0031] Figure 6 It is a schematic diagram used to show the structure of the connector.

[0032] Figure 7 is along Figure 6 Sectional view along line DD.

[0033] Figure 8 It is a schematic diagram used to show the structure of the door in the closed state.

[0034] Fig. 9 yes Figure 8 Enlarged view of middle part E.

[0035] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 11. Door; 12. Rotating shaft; 13. Driving chamber; 14. Telescopic ladder; 141. Ladder one; 142. Ladder two; 15. Ladder storage slot; 16. Connecting plate; 17. Window glass; 171. Scraper strip; 172. Adsorption block one; 173. Adsorption block two; 174. Guide slot; 2. Transmission member; 21. Bevel gear one; 22. Rotating rod; 23. Bevel gear two; 24. Rotating slot; 3. Transmission assembly; 31. Bevel gear three; 32. Driving rod; 33. Connecting member; 331. Sprocket one; 332. Rotating shaft one; 333. Sprocket two; 334. Sprocket three; 335. Chain one; 336. Rotating shaft two; 337. Sprocket four; 338. Gear; 339. Chain two; 341. Rack; 4. Baffle. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-9 This application is described in further detail.

[0037] An embodiment of the present application discloses a crew compartment door for a fire truck.

[0038] Reference Figure 1 , Figure 2 and Figure 3 A crew compartment door of a fire truck comprises a frame 1 and a door 11. The door 11 is rotatably arranged with the frame 1 via a rotating shaft 12. A driving cavity 13 is arranged in the frame 1. One end of the rotating shaft 12 extends downward and is inserted into the driving cavity 13. A telescopic ladder 14 is rotatably arranged on the frame 1. A transmission member 2 for driving the telescopic ladder 14 to rotate in a vertical direction is arranged at one end of the rotating shaft 12 inserted into the driving cavity 13. A window glass 17 is arranged on the door 11.

[0039] Reference Figure 2 , Figure 3 and Figure 4 The transmission member 2 includes a bevel gear 1 21, a rotating rod 22, and a bevel gear 23. The bevel gear 1 21 is coaxially fixed on the rotating shaft 12. A rotating groove 24 is provided on the frame 1. The rotating rod 22 is rotatably arranged in the frame 1. One end of the rotating rod 22 extends into the driving cavity 13, and the other end of the rotating rod 22 extends into the rotating groove 24. The bevel gear 23 is coaxially fixed on the end of the rotating rod 22 extending into the driving cavity 13. The bevel gear 1 21 is meshed with the bevel gear 23. The telescopic ladder 14 is fixedly arranged with one end of the rotating rod 22 extending into the rotating groove 24. The frame 1 is provided with a transmission component 3 for driving the telescopic ladder 14 to extend and retract.

[0040] When the car door 11 is opened, the car door 11 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the bevel gear 1 21 to rotate. The bevel gear 1 21 drives the rotating rod 22 to rotate through the bevel gear 2 23, and the rotating rod 22 drives the telescopic ladder 14 to flip downward. At the same time, the bevel gear 1 21 drives the telescopic ladder 14 to extend through the transmission assembly 3. When the car door 11 stops opening, one end of the telescopic ladder 14 is located on the ground, and the firefighters can enter the passenger compartment along the telescopic ladder 14. When the car door 11 is closed, the car door 11 drives the telescopic ladder 14 to flip upward. At the same time, the rotating shaft 12 drives the telescopic ladder 14 to retract through the transmission assembly 3. When the car door 11 is completely closed, the telescopic ladder 14 is inserted into the ladder storage slot 15, thereby realizing the opening and storage of the telescopic ladder 14, thereby improving the convenience for firefighters to go up and down the passenger compartment.

[0041] Reference Figure 2 The telescopic ladder 14 includes a ladder 141 and a ladder 142. The ladder 142 is inserted into the ladder 141 and slidably arranged with the ladder 141. A connecting plate 16 is provided between the ladder 141 and the rotating rod 22. One end of the connecting plate 16 is fixedly arranged with the ladder 141, and the other end of the connecting plate 16 is fixedly arranged with the rotating rod 22. The connecting plate 16 is vertically arranged with the ladder 141.

[0042] Reference Figure 4 , Figure 5 and Figure 6The transmission assembly 3 includes a bevel gear three 31, a driving rod 32, and a connecting piece 33. One end of the driving rod 32 is inserted into the frame 1 and is rotatably arranged with the frame 1, and the other end of the driving rod 32 passes through the rotating rod 22. The axis of the driving rod 32 is colinear with the axis of the rotating rod 22. The bevel gear three 31 is located on the side where the driving rod 32 extends into the driving cavity 13, and is coaxially fixed with the driving rod 32. The bevel gear three 31 is meshed with the bevel gear one 21. The bevel gear one 21 is located above the gear 338 two. The bevel gear two 23 and the bevel gear three 31 are located on both sides of the bevel gear one 21. The connecting piece 33 includes a sprocket one 331 coaxially fixed on the driving rod 32, a rotating shaft one 332 is rotatably provided on the connecting plate 16, a sprocket two 333 and a sprocket three 334 are coaxially fixed on the rotating shaft one 332, the sprocket one 331 and the sprocket two 333 are connected by a chain one 335, and a rotating shaft two 336 is rotatably provided on the ladder one 141.

[0043] Reference Figure 6 , Figure 7 A sprocket four 337 and a gear 338 are coaxially fixed on the rotating shaft two 336, and the sprocket three 334 is connected to the sprocket four 337 by a chain two 339. A rack 341 is provided on the ladder two 142, and the rack 341 is arranged along the length direction of the ladder two 142. The gear 338 is meshed with the rack 341. A baffle 4 is provided at the bottom of the ladder one 141. When the ladder one 141 is inserted into the ladder storage slot 15, the baffle 4 will block the ladder storage slot 15.

[0044] When the door 11 is opened, the bevel gear 1 21 drives the bevel gear 3 31 to rotate, the bevel gear 3 31 drives the driving rod 32 to rotate in the rotating rod 22, the driving rod 32 drives the sprocket 1 331 to rotate, the sprocket 1 331 rotates through the chain 1 335, the sprocket 3 334 drives the sprocket 4 337 to rotate through the chain 2 339, the sprocket 4 337 drives the gear 338 to rotate, the gear 338 drives the ladder 2 142 to extend out of the ladder 1 141 through the rack 341, thereby realizing the extension of the telescopic ladder 14. When the door 11 is closed, the rotating shaft 12 drives the bevel gear 1 21 to flip, and the bevel gear 2 23 and the bevel gear 3 31 to flip. When the telescopic ladder 14 flips upward, the gear 338 drives the ladder 2 142 to retract into the ladder 1 141 through the rack 341, thereby shrinking the telescopic ladder 14. When the car door 11 is completely closed, the ladder 2 142 is completely retracted into the ladder 1 141, thereby realizing the storage of the telescopic ladder 14. At the same time, the length of the telescopic ladder 14 can be increased, and the convenience for firefighters to enter the passenger compartment is improved.

[0045] Reference Figure 1 , Figure 8 and Fig. 9A scraper strip 171 is slidably provided on the outer side wall of the vehicle window glass 17, and the scraper strip 171 is a rubber strip. The scraper strip 171 slides in the vertical direction, and the scraper strip 171 is in contact with the vehicle window glass 17. An adsorption block 172 is provided on the scraper strip 171, and the adsorption block 172 is an iron block. An adsorption block 2 173 is slidably provided on the inner side wall of the vehicle window glass 17, and the adsorption block 2 173 is a magnet block. Two guide grooves 174 are provided on the frame 1, and the vehicle window glass 17 is located between the two guide grooves 174. The two ends of the scraper strip 171 are respectively inserted into the guide grooves 174 on the same side and are slidably arranged with the guide grooves 174.

[0046] When driving in the rain, rain will float onto the window glass 17. Firefighters can slide the adsorption block 2 173 up and down. The adsorption block 2 173 drives the adsorption block 1 172 to slide. The adsorption block 1 172 drives the scraper 171 to contact the glass and drives the scraper 171 to slide on the glass to scrape off the rain on the glass, thereby improving the field of vision of the firefighters in the passenger compartment.

[0047] The implementation principle of a crew compartment door of a fire truck in an embodiment of the present application is as follows: when the door 11 is opened, the rotating shaft 12 drives the bevel gear 1 21 to rotate, the bevel gear 1 21 drives the bevel gear 2 23 and the bevel gear 3 31 to rotate, the bevel gear 2 23 and the bevel gear 3 31 have opposite directions, the bevel gear 2 23 drives the rotating rod 22 to rotate, the bevel gear 3 31 drives the driving rod 32 to rotate, the rotating rod 22 drives the telescopic ladder 14 to flip downward through the connecting plate 16, the driving rod 32 drives the sprocket 1 331 to rotate, the sprocket 1 331 drives the sprocket 2 333 to rotate through the chain 1 335, the sprocket 3 334 drives the sprocket 4 337 to rotate through the chain 2 339, and the sprocket 4 337 drives the ladder 2 142 to extend out of the ladder 1 141 through the gear 338 and the rack 341, thereby realizing that the telescopic ladder 14 flips downward while the telescopic ladder 14 extends.

[0048] When the car door 11 is closed, the rotating shaft 12 drives the bevel gear 1 21 to flip, and the bevel gear 1 21 drives the bevel gear 2 23 and the bevel gear 3 31 to flip, so that the telescopic ladder 14 flips upward and drives the ladder 2 142 to retract into the ladder 1 141. When the car door 11 is completely closed, the telescopic ladder 14 is inserted into the ladder storage slot 15.

[0049] 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 fire truck crew compartment door, comprising a frame (1), and a door (11) arranged on the frame (1), wherein the door (11) and the frame (1) are rotatably arranged via a rotation shaft (12), characterized in that: A telescopic ladder (14) is rotatably provided on the vehicle frame (1), a transmission member (2) for driving the telescopic ladder (14) to rotate is provided on the rotating shaft (12), a transmission assembly (3) for driving the telescopic ladder (14) to extend is provided on the vehicle frame (1), and a ladder storage slot (15) for placing the telescopic ladder (14) is provided on the vehicle door (11).

2. A fire truck crew compartment door according to claim 1, characterized in that: The transmission member (2) comprises a bevel gear 1 (21), a rotating rod (22), and a bevel gear 2 (23); the bevel gear 1 (21) is coaxially arranged on the rotating shaft (12); the rotating rod (22) is rotatably arranged on the vehicle frame (1); the telescopic ladder (14) is fixedly arranged on the rotating rod (22); the bevel gear 2 (23) is coaxially arranged on the rotating rod (22); and the bevel gear 2 (23) is meshed with the bevel gear 1 (21).

3. A fire truck crew compartment door according to claim 2, characterized in that: The telescopic ladder (14) and the rotating rod (22) are fixedly arranged via a connecting plate (16), and the connecting plate (16) and the telescopic ladder (14) are arranged perpendicularly.

4. A fire truck crew compartment door according to claim 2, characterized in that: The telescopic ladder (14) comprises a ladder 1 (141) and a ladder 2 (142), wherein the ladder 1 (141) is fixedly arranged with the rotating rod (22), and the ladder 2 (142) is inserted into the ladder 1 (141) and slidably arranged with the ladder 1 (141); The transmission assembly (3) comprises a driving rod (32), a bevel gear three (31), and a connecting piece (33); one end of the driving rod (32) is rotatably connected to the frame (1); the other end of the driving rod (32) passes through the rotating rod (22) and is rotatably arranged with the rotating rod (22); the axis of the driving rod (32) is colinear with the axis of the rotating rod (22); the bevel gear three (31) is coaxially arranged on the driving rod (32); the bevel gear three (31) is meshed with the bevel gear one (21) so that the rotation directions of the bevel gear three (31) and the bevel gear two (23) are opposite; the driving rod (32) drives the ladder two (142) to slide along the ladder one (141) through the connecting piece (33).

5. A fire truck crew compartment door according to claim 4, characterized in that: The connecting member (33) comprises a sprocket wheel 1 (331) coaxially arranged on the driving rod (32); a gear wheel (338) is rotatably arranged on the ladder 1 (141); a sprocket wheel 2 (333) is rotatably arranged on the ladder 1 (141) for driving the gear wheel (338) to rotate; the sprocket wheel 1 (331) and the sprocket wheel 2 (333) are connected via a chain 1 (335); a rack (341) meshing with the gear wheel (338) is arranged on the ladder 2 (142); and the rack (341) is arranged along the sliding direction of the ladder 2 (142).

6. The fire truck crew compartment door according to claim 5, characterized in that: The ladder 1 (141) is provided with a baffle (4) for shielding the ladder storage slot (15).

7. The fire truck crew compartment door according to claim 1, characterized in that: The vehicle door (11) is provided with a scraper strip (171) for sliding on the outside of the vehicle window glass (17), the scraper strip (171) is provided with an adsorption block 1 (172), and an adsorption block 2 (173) for adsorbing the adsorption block 1 (172) is slidably provided on the inner side wall of the vehicle window glass (17).

8. The fire truck crew compartment door according to claim 7, characterized in that: The vehicle door (11) is provided with a guide groove (174) for the scraper strip (171) to be inserted and slidably arranged.

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