Cab structure and fire fighting truck

Abstract

The invention belongs to the technical field of vehicle engineering, and discloses a cab structure and a fire fighting truck. The cab structure is installed on a frame of the fire fighting truck and comprises a driving body and a sinking suspension system, the driving body comprises an initial section and a lengthened section which are connected in the length direction of the frame, the initial section and the lengthened section define a sitting space, the sitting space comprises a front-row sitting position and a rear-row sitting position, and three seats are arranged in the front-row sitting position; four seats are arranged in the rear-row sitting positions; the sinking suspension system is arranged on the side wall of the vehicle frame in the width direction and connected with the driving body. According to the cab structure, the loading capacity of the fire fighting truck is improved, the number of pedals is reduced, and the rescue response time efficiency is accelerated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle engineering, and in particular to a cab structure and a fire truck. BACKGROUND

[0002] The fire truck is a special vehicle designed for fire fighting operation, and the core function is to transport fire fighters, fire extinguishing agents and rescue equipment to the disaster site to perform fire extinguishing, rescue and other tasks. The cab, as the core control and passenger area of the vehicle, needs to meet the needs of accommodating a plurality of fire fighters.

[0003] In the prior art, the cab of the fire truck generally adopts a double-row seat design, wherein the front row seat can carry two people, and the rear row seat can carry three to four people. The existing fire truck generally carries five to six people. However, in complex rescue scenes such as vehicle accidents and building collapses, more than six fire fighters often need to work together, which leads to the need to simultaneously dispatch multiple fire trucks, significantly increasing the rescue cost and causing inconvenience in scheduling. In addition, the existing cab generally has a high ground clearance, and the fire fighters need to step on multiple steps to get in and out, which not only lacks convenience in passing, but also directly affects the rescue response time.

[0004] Therefore, there is an urgent need for a cab structure and a fire truck to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a cab structure and a fire truck, which improves the carrying capacity of the fire truck, reduces the number of step settings, and speeds up the rescue response time.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] On the one hand, a cab structure is provided, which is installed on the frame of a fire truck, and the cab structure comprises:

[0008] The driving main body comprises an initial segment and an extended segment connected along the length direction of the frame, and the initial segment and the extended segment surround to form a seating space, the seating space comprises a front row seating position and a rear row seating position, three seats are arranged in the front row seating position, and four seats are arranged in the rear row seating position;

[0009] The sinking suspension system is arranged on the side wall in the width direction of the frame and connected with the driving main body.

[0010] Optionally, the sinking suspension system comprises three groups of suspension assemblies, and the three groups of suspension assemblies are arranged at intervals along the length direction of the frame.

[0011] Optionally, the suspension assembly comprises two air suspensions arranged symmetrically, and the two air suspensions are connected with the two side walls in the width direction of the frame in a one-to-one correspondence;

[0012] Alternatively, the suspension assembly comprises two rubber suspensions arranged symmetrically, and the two rubber suspensions are connected with two side walls in the width direction of the vehicle frame one by one.

[0013] Optionally, the cab structure further comprises a plurality of stepping members rotatably arranged on the cab body, the stepping members have a vertical storage state and a horizontal use state, and the driving of the stepping members is used to switch the stepping members between the storage state and the use state.

[0014] Optionally, the cab structure further comprises a linear driving member and a linkage frame, one end of the linkage frame is rotatably connected with the cab body, the other end of the linkage frame is rotatably connected with the output end of the linear driving member, the stepping members are rotatably connected with the cab body through the linkage frame, and the linear driving member is arranged on the cab body and used to drive the other end of the linkage frame to move up and down, so that the linkage frame drives the stepping members to rotate relative to the cab body.

[0015] Optionally, a rear opening that can be opened and closed is arranged on the cab body, and the cab structure further comprises an identification member arranged at the rear opening, the identification member is electrically connected or communicatively connected with the linear driving member, and is configured to identify the opening and closing state of the rear opening; when the rear opening is opened, the linear driving member drives the stepping members to rotate to the use state; and when the rear opening is closed, the linear driving member drives the stepping members to rotate to the storage state.

[0016] Optionally, a plurality of stepping members are arranged, and the plurality of stepping members are arranged in a vertical direction in a stepped manner from top to bottom in the use state.

[0017] Optionally, the stepping member comprises a stepping portion and a connecting portion, one end of the connecting portion is rotatably connected with the cab body, the other end of the connecting portion is connected with the stepping portion, and the length of the lower connecting portion is greater than the length of the adjacent upper connecting portion.

[0018] Optionally, the cab body comprises a top support assembly, a bottom support assembly, a front support assembly, a rear support assembly, a first side support assembly and a second side support assembly, the top support assembly and the bottom support assembly are arranged in a vertical direction, the upper end of the front support assembly, the upper end of the rear support assembly, the upper end of the first side support assembly and the upper end of the second side support assembly are connected with the top support assembly, the lower end of the front support assembly, the lower end of the rear support assembly, the lower end of the first side support assembly and the lower end of the second side support assembly are connected with the bottom support assembly, the front support assembly, the first side support assembly, the rear support assembly and the second side support assembly are connected end to end, and the top support assembly, the bottom support assembly, the front support assembly, the rear support assembly, the first side support assembly and the second side support assembly form a seating space.

[0019] Optionally, the top support assembly comprises a top frame and a top guard plate arranged outside the top frame.

[0020] The bottom support assembly comprises a connecting plate and a first bottom plate, a second bottom plate and a third bottom plate connected in sequence along the width direction of the frame, the connecting plate being connected with the first bottom plate, the second bottom plate and the third bottom plate, the first bottom plate being connected with the bottom of the first side support assembly, and the third bottom plate being connected with the bottom of the second side support assembly;

[0021] The front support assembly comprises a front frame and a front guard plate arranged outside the front frame;

[0022] The rear support assembly comprises a rear frame and a rear guard plate arranged outside the rear frame;

[0023] The first side support assembly comprises a first inner support plate and a first outer support plate arranged outside the first inner support plate;

[0024] The second side support assembly comprises a second inner support plate and a second outer support plate arranged outside the second inner support plate.

[0025] In another aspect, a fire fighting vehicle is provided, comprising a frame and the cab structure described above, the cab body of the cab structure being rotatably arranged on the frame.

[0026] Optionally, the fire fighting vehicle further comprises a plurality of lifting assemblies, the lifting assemblies being arranged on the frame in a vertically adjustable manner and being rotatably connected with the cab body, the lifting assemblies being configured to drive the cab body to rotate.

[0027] Optionally, the lifting assembly comprises a first lifting member and a second lifting member which are slidably connected in a vertical direction, the first lifting member being connected with the frame, the second lifting member being rotatably connected with the cab body, and the overlapping length of the first lifting member and the second lifting member being adjustable.

[0028] Optionally, the fire fighting vehicle further comprises a locking assembly arranged on the lifting assembly, the locking assembly being configured to lock the overlapping length of the first lifting member and the second lifting member.

[0029] Optionally, the locking assembly comprises a first locking member and a second locking member, the first locking member being arranged on the first lifting member, and the second locking member being arranged on the second lifting member, a plurality of locking holes being arranged on the second locking member in a vertical direction, and the first locking member being capable of selectively being clamped into any locking hole.

[0030] Optionally, two lifting assemblies are arranged, and the two lifting assemblies are symmetrically arranged along the width direction of the frame.

[0031] Compared with the prior art, the present application has the following advantages:

[0032] The application provides a cab structure and a fire truck. The length of the cab body is increased along the length direction of the frame, and the volume of the seating space is increased. Compared with the prior art, the structure in the front row of seats is moved forward, so that sufficient space is provided for the installation of the front row of seats, three seats can be installed in the front row of seats, the carrying capacity of the fire truck is improved, the rescue cost is reduced, and the convenience of dispatch is improved. Compared with the suspension system commonly arranged on the top of the frame in the prior art, the sinking suspension system is arranged on the side wall of the frame, the height is reduced, the vertical distance between the cab body and the frame is shortened, the ground clearance of the cab body is reduced, the number of pedals is reduced, the convenience of the firefighters is improved, and the rescue response time is shortened. When other equipment at the bottom of the cab body fails, the space between the cab body and the frame can be increased by driving the cab body to rotate, so that the failed equipment can be repaired, and the convenience of the fire truck repair is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A structure diagram of the fire truck is provided.

[0034] Figure 2 A structure diagram of the sinking suspension system of the cab structure is provided.

[0035] Figure 3 A sectional view of the cab body of the cab structure is provided.

[0036] Figure 4 A structure diagram of the cab structure when the rear opening is opened is provided.

[0037] Figure 5 A structure diagram of the cab structure when the pedal is in the storage state is provided.

[0038] Figure 6 A structure diagram of the cab structure when the pedal is in the use state is provided.

[0039] Figure 7 A structure diagram of the cab body of the cab structure is provided.

[0040] Figure 8 An exploded view of the cab body of the cab structure is provided.

[0041] Figure 9 A structure diagram of the cab body of the fire truck when the cab body rotates relative to the frame is provided.

[0042] Figure 10 A structure diagram of the lifting assembly and the locking assembly of the fire truck is provided.

[0043] Fig. 1 is a perspective view of a vehicle according to the present application;

[0044] 100, cab structure;

[0045] 110, cab body; 1111, front door; 1112, rear door; 1113, handlebar; 112, top support assembly; 1121, top frame; 1122, top fender; 113, bottom support assembly; 1131, connecting plate; 1132, first bottom plate; 1133, second bottom plate; 1134, third bottom plate; 114, front support assembly; 115, rear support assembly; 1151, rear frame; 1152, rear fender; 116, first side support assembly; 1161, first inner support plate; 1162, first outer support plate; 117, second side support assembly; 1171, second inner support plate; 1172, second outer support plate; 1181, driver seat; 1182, co-driver seat; 1183, fixed seat;

[0046] 120, sink suspension system; 121, air suspension; 1211, upper support; 1212, lower support; 1213, air bag shock absorber; 122, rubber suspension; 1221, mounting support; 1222, rubber block;

[0047] 131, stepping member; 1311, stepping portion; 1312, connecting portion; 132, linear driving member; 133, linkage frame;

[0048] 200, frame;

[0049] 300, lifting assembly; 310, first lifting member; 320, second lifting member;

[0050] 400, locking assembly; 410, first locking member; 420, second locking member; 421, locking hole; 430, lever. DETAILED DESCRIPTION

[0051] The present application will be further described by way of illustration with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the present application and are not to be used to limit the present application in any manner. It is also to be understood that, for the purpose of clarity, only those structures of the vehicle that are relevant to the present application are shown in the drawings.

[0052] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of the present embodiment, the terms "up", "down", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0055] Embodiment one

[0056] As Figures 1 to 8 shown, the present embodiment provides a cab structure 100, which improves the crew capacity of the fire truck, reduces the number of pedal settings, and speeds up the rescue response time.

[0057] Referring to Figure 1 , Figure 2 and Figure 3 , the cab structure 100 is mounted on the frame 200 of the fire truck, and includes a driving body 110 and a sunken suspension system 120. The driving body 110 includes an initial section and an extended section connected along the length direction (X direction in Figure 1 ) of the frame 200, and the initial section and the extended section are surrounded to form a seating space, which includes a front row of seating positions and a rear row of seating positions. Three seats are arranged in the front row of seating positions, and four seats are arranged in the rear row of seating positions. The sunken suspension system 120 is arranged on the side wall in the width direction (Y direction in Figure 2 ) of the frame 200 and is connected with the driving body 110.

[0058] The cab structure 100 provided by the embodiment is provided with the lengthening section, so that the length of the driving body 110 along the length direction of the frame 200 is lengthened, and the volume of the seating space is increased. Compared with the prior art, the structure in the front row of seats is moved forward, such as the instrument panel, so as to provide sufficient space for the installation of the front row of seats, so that three seats can be installed in the front row of seats, the carrying capacity of the fire truck is improved, the rescue cost is reduced, and the convenience of dispatch is improved. Compared with the suspension system generally arranged on the top of the frame 200 in the prior art, the sinking suspension system 120 is arranged on the side wall of the frame 200, the height is reduced, so as to shorten the vertical distance between the driving body 110 and the frame 200, reduce the ground clearance of the driving body 110, help to reduce the number of pedal arrangements, improve the convenience of firefighters passing through, and speed up the rescue response time.

[0059] The existing fire fighting team generally adopts a seven-person formation, and the seven seats arranged in the seating space can meet the needs of the fire fighting team, and the convenience of dispatch is improved.

[0060] In the embodiment, referring to Figure 4 , the driving body 110 is provided with a front door 1111 and a rear door 1112, the position of the front door 1111 corresponds to the front row of seats, and the firefighter can enter and exit the front row of seats by opening the front door 1111, the position of the rear door 1112 corresponds to the rear row of seats, and the firefighter can enter and exit the rear row of seats by opening the rear door 1112.

[0061] Exemplarily, the length of the cab structure 100 of the existing fire truck along the length direction of the frame 200 is generally in the range of 2.5m-2.7m, and the width of the rear door 1112 is generally 0.9m. The length of the driving body 110 along the length direction of the frame 200 of the embodiment can reach more than 3m due to the arrangement of the lengthening section, the width of the rear door 1112 can reach 1.1m, the convenience of the firefighter entering and exiting the rear row of seats is improved; at the same time, the volume of the seating space can reach 9 cubic meters, the available space in the driving body 110 is significantly widened, sufficient space is reserved for the reasonable installation of the front row of seats, and the practicability of the space layout of the driving body 110 is further optimized.

[0062] In some embodiments, the opening angle of the rear door 1112 is in the range of 0°-90°, which further improves the convenience of the firefighter entering and exiting the rear row of seats.

[0063] Exemplarily, the rear door 1112 of the existing fire truck cab structure 100 is generally provided with 3-4 steps for firefighters to get on and off the vehicle. The setting of the sinking suspension system 120 shortens the distance from the bottom surface of the driving body 110 to the ground to 1250mm±20mm, significantly shortens the distance from the rear door 1112 to the ground, thereby reducing the number of steps, improving the convenience of firefighters passing through, and speeding up the rescue response time.

[0064] In the embodiment, the lengthened section and the initial section are integrally formed, i.e., the driving body 110 is of a monolithic structure; in other embodiments, the initial section is an existing single-row or double-row cab, and the lengthened section is a newly added structure. The lengthened section forms the driving body 110 by being connected to the initial section at a later stage.

[0065] Optionally, referring to Figure 1 and Figure 2 , the sinking suspension system 120 includes three groups of suspension assemblies, which are arranged at intervals along the length direction of the vehicle frame 200. The suspension assembly is a key component for connecting the powertrain such as the engine and the transmission of the fire truck to the vehicle frame 200, which can optimize the vibration transmission of the powertrain, improve the comfort of firefighters, and ensure the safety of the fire truck. In the prior art, two groups of suspension assemblies are generally provided on the vehicle frame 200 of the fire truck, and thus compared with the prior art, the sinking suspension system 120 of the embodiment adds one group of suspension assemblies. In this way, on the one hand, it can adapt to the lengthened driving body 110, avoid the vibration generated by the powertrain directly transmitted to the driving body 110, and ensure the comfort of firefighters; on the other hand, it can form a spatial support network on the vehicle frame 200, further optimize the vibration transmission of the powertrain, and significantly improve the vehicle performance in many aspects.

[0066] In the embodiment, referring to Figure 1 and Figure 2 , the suspension assembly includes two air suspensions 121 arranged symmetrically, which are connected to the two side walls in the width direction of the vehicle frame 200 one by one. The air suspension 121 mainly adjusts the height and hardness of the driving body 110 through air damping, has the characteristics of high stability, high comfort and high adaptability, and can enhance the longitudinal stability of the fire truck.

[0067] Specifically, referring to Figure 1 and Figure 2The air suspension 121 comprises an upper support 1211, a lower support 1212 and an air bag shock absorber 1213. The upper support 1211 is connected to the driving body 110, the lower support 1212 is connected to the side wall of the vehicle frame 200, the upper end of the air bag shock absorber 1213 is connected to the upper support 1211, and the lower end of the air bag shock absorber 1213 is connected to the lower support 1212. The air bag shock absorber 1213 is configured to weaken the transmission of vibration from the vehicle frame 200 to the driving body 110.

[0068] Exemplarily, the specific structure and working principle of the air bag shock absorber 1213 are prior art in the field, and will not be described here.

[0069] In other embodiments, referring to Figure 2 The suspension assembly comprises two rubber suspensions 122 symmetrically arranged and connected to the two side walls of the vehicle frame 200 in the width direction. The rubber suspension 122 mainly realizes shock absorption through rubber elasticity, has the characteristics of high shock absorption performance, automatic adjustment of hardness according to load and road conditions, and convenient maintenance, and can enhance the stability and comfort of the fire truck.

[0070] Specifically, referring to Figure 1 and Figure 2 The rubber suspension 122 comprises a mounting support 1221 and a rubber block 1222 arranged on the top of the mounting support 1221. The mounting support 1221 can be mounted on the vehicle frame 200, and the rubber block 1222 is connected to the driving body 110 and is configured to weaken the transmission of vibration from the vehicle frame 200 to the driving body 110.

[0071] Exemplarily, the specific structure and working principle of the rubber block 1222 are prior art in the field, and will not be described here.

[0072] In this embodiment, referring to Figure 2 Some of the suspension assemblies in the three groups of suspension assemblies adopt the structure comprising two air suspensions 121, and the other suspension assemblies adopt the structure comprising two rubber suspensions 122. Preferably, the structures of the three groups of suspension assemblies are symmetrically selected along the length direction of the vehicle frame 200.

[0073] Exemplarily, referring to Figure 2, the suspension assembly closest to the front of the vehicle adopts a structure comprising two air suspensions 121, the suspension assembly farthest from the front of the vehicle adopts a structure comprising two air suspensions 121, and the suspension assembly in the middle adopts a structure comprising two rubber suspensions 122. In this way, high-frequency and small-amplitude vibrations can be effectively filtered by the four air suspensions 121, and low-frequency and large-amplitude vibrations can be effectively filtered by the two rubber suspensions 122. The three suspension assemblies work together to significantly optimize the vibration transmission of the power assembly, further improve the comfort of the firefighters, and ensure the safety of the fire truck.

[0074] In other embodiments, all three suspension assemblies adopt a structure comprising two air suspensions 121, or all three suspension assemblies adopt a structure comprising two rubber suspensions 122.

[0075] Optionally, referring to Figure 4 , Figure 5 and Figure 6 , the cab structure 100 further comprises a plurality of stepping members 131 rotatably arranged on the driving body 110. The stepping members 131 have a vertical storage state and a horizontal use state. The driving body 110 drives the stepping members 131 to rotate, and the stepping members 131 switch between the storage state and the use state. In the use state, the horizontally placed stepping members 131 facilitate the firefighters to step on when getting on and off the vehicle, improving the convenience of the firefighters getting on and off the vehicle. During the driving process of the fire truck or when the fire truck is stationary, the stepping members 131 can be switched to the storage state, and the vertically placed stepping members 131 will not be accidentally touched by surrounding objects or pedestrians, improving the safety of the fire truck.

[0076] In this embodiment, referring to Figure 4 and Figure 6 , the cab structure 100 further comprises a linear drive member 132 and a linkage frame 133. One end of the linkage frame 133 is rotatably connected to the driving body 110, and the other end is rotatably connected to the output end of the linear drive member 132. The stepping members 131 are rotatably connected to the driving body 110 through the linkage frame 133. The linear drive member 132 is arranged on the driving body 110 and drives the other end of the linkage frame 133 to move up and down. The linkage frame 133 drives the stepping members 131 to rotate relative to the driving body 110. When the linear drive member 132 drives the other end of the linkage frame 133 to move up and down, the linkage frame 133 and the output end of the linear drive member 132 will rotate relative to each other under the constraint of the driving body 110. The linkage frame 133 as a whole rotates relative to the driving body 110 about the end connected to the driving body 110, and the linkage frame 133 drives the stepping members 131 connected thereto to rotate together, so as to switch the stepping members 131 between the storage state and the use state.

[0077] Exemplarily, the linear driving members 132 are electric cylinders, and the linkage frames 133 are linkage rods.

[0078] Referring to Figure 6 , the linear driving members 132 and the linkage frames 133 are both provided with two, and the two linear driving members 132 and the two linkage frames 133 are one-to-one corresponding, and the two linkage frames 133 are symmetrically arranged at the two ends of the treading member 131, which helps to improve the stability of the rotation of the treading member 131 and ensure the safety of the use of the treading member 131.

[0079] In this embodiment, the driving main body 110 is provided with a closable rear opening, and the cab structure 100 further comprises an identification member arranged at the rear opening, which is electrically connected or communicatively connected with the linear driving member 132 and is configured to identify the opening and closing state of the rear opening. When the rear opening is opened, the linear driving member 132 drives the treading member 131 to rotate to the use state, and when the rear opening is closed, the linear driving member 132 drives the treading member 131 to rotate to the storage state, so that the state switching of the treading member 131 does not need manual control, which significantly improves the automation degree of the rotation of the treading member 131 and improves the convenience of the firefighters getting on and off the vehicle.

[0080] Specifically, the rear door 1112 is arranged at the rear opening and is driven to rotate relative to the driving main body 110 to open or close the rear opening.

[0081] Exemplarily, the identification member is an image recognizer configured to identify the rear door 1112. When the image recognizer identifies the rear door 1112, the rear opening is opened, and when the image recognizer does not identify the rear door 1112, the rear opening is closed.

[0082] In some embodiments, referring to Figure 4 , a holding rod 1113 extending in the vertical direction is arranged at the rear opening, and the firefighters get on and off the rear row of seats by holding the holding rod 1113, which improves the convenience and safety of the firefighters getting on and off the vehicle.

[0083] Specifically, referring to Figure 4 , the holding rod 1113 is provided with two, and the two holding rods 1113 are arranged on the two sides of the width direction of the rear opening.

[0084] Exemplarily, the length of the holding rod 1113 is about 1m.

[0085] In this embodiment, referring to Figure 6 , the treading member 131 is provided with a plurality of treading members 131 arranged at intervals in the vertical direction (Z direction in the figure) Figure 6 , and in the use state, the plurality of treading members 131 are arranged from top to bottom (from top to bottom in the figure) Figure 6The plurality of stepping members 131 are arranged in a stepped manner in the negative Z direction. In this way, on the one hand, the plurality of stepping members 131 can be more in line with human movement, reducing the height of each step for the firefighter, and making it more convenient for the firefighter to step; on the other hand, a clear boundary can be formed between two stepping members 131, reducing the risk of slipping due to wetness or blurred vision, and enhancing the safety of use.

[0086] Specifically, referring to Figure 6 , the stepping member 131 includes a stepping portion 1311 and a connecting portion 1312, one end of the connecting portion 1312 is rotatably connected to the driving body 110, and the other end is connected to the stepping portion 1311. The length of the lower connecting portion 1312 is greater than the length of the adjacent upper connecting portion 1312, so that in the use state, the plurality of stepping members 131 are arranged in a stepped manner from top to bottom.

[0087] Exemplarily, the stepping portion 1311 adopts a pedal, and the connecting portion 1312 adopts a steel support.

[0088] Optionally, referring to Figure 7 and Figure 8 , the lengthening section and the initial section are integrally formed. The driving body 110 includes a top support assembly 112, a bottom support assembly 113, a front support assembly 114, a rear support assembly 115, a first side support assembly 116, and a second side support assembly 117. The top support assembly 112 and the bottom support assembly 113 are arranged in a vertical direction. The upper ends of the front support assembly 114, the rear support assembly 115, the first side support assembly 116, and the second side support assembly 117 are connected to the top support assembly 112. The lower ends of the front support assembly 114, the rear support assembly 115, the first side support assembly 116, and the second side support assembly 117 are connected to the bottom support assembly 113. The front support assembly 114, the first side support assembly 116, the rear support assembly 115, and the second side support assembly 117 are connected end to end. The top support assembly 112, the bottom support assembly 113, the front support assembly 114, the rear support assembly 115, the first side support assembly 116, and the second side support assembly 117 form a seating space. The top support assembly 112 and the bottom support assembly 113 form a vertical enclosure and support structure of the driving body 110. The front support assembly 114, the rear support assembly 115, the first side support assembly 116, and the second side support assembly 117 together form a horizontal enclosure and support structure of the driving body 110, improving the stability and reliability of the structure of the driving body 110 and ensuring the safety of the firefighter.

[0089] In this embodiment, referring to Figure 7 and Figure 8The top support assembly 112 includes a top frame 1121 and a top guard plate 1122 disposed on the outside of the top frame 1121. The top frame 1121, as a support structure, not only ensures the rigidity and strength of the top of the driver's body 110, but also helps reduce the weight of the top support assembly 112. The top guard plate 1122, as an enclosure structure, not only provides protection, but also enhances the overall integrity and stability of the top support assembly 112. The synergistic effect of the top frame 1121 and the top guard plate 1122 significantly improves the overall bending stiffness and impact resistance of the top support assembly 112, thereby enhancing the safety of the driver's body 110.

[0090] Specifically, the top frame 1121 adopts a "double grid beam" structure, which significantly improves the overall rigidity and bending load-bearing capacity of the top support component 112, ensuring the safety of the driving body 110.

[0091] For example, both the top frame 1121 and the top guard plate 1122 are made of steel and are welded together.

[0092] In this embodiment, see Figure 7 and Figure 8 The bottom support assembly 113 includes a connecting plate 1131 and a first bottom plate 1132, a second bottom plate 1133, and a third bottom plate 1134 connected sequentially along the width direction of the frame 200. The connecting plate 1131 is connected to the first bottom plate 1132, the second bottom plate 1133, and the third bottom plate 1134. The first bottom plate 1132 is connected to the bottom of the first side support assembly 116, and the third bottom plate 1134 is connected to the bottom of the second side support assembly 117. Since the bottom structure of the driver's body 110 is complex and has many components, the bottom support assembly 113 adopts a split design. The connecting plate 1131 connects the first bottom plate 1132, the second bottom plate 1133, and the third bottom plate 1134 into a whole, improving the integrity of the bottom support assembly 113 and ensuring the safety of the driver's body 110.

[0093] For example, the connecting plate 1131, the first base plate 1132, the second base plate 1133 and the third base plate 1134 are all made of steel. The second base plate 1133 is welded to the first base plate 1132 and the third base plate 1134, and the connecting plate 1131 is welded to the first base plate 1132, the second base plate 1133 and the third base plate 1134.

[0094] In some embodiments, the bottom support assembly 113 further includes a bottom beam. The bottom beam, together with the first bottom plate 1132, the second bottom plate 1133, and the third bottom plate 1134, is formed by an integrated stamping process to create a U-shaped cross-section structure, which can effectively suppress local deformation of the first bottom plate 1132, the second bottom plate 1133, and the third bottom plate 1134.

[0095] In this embodiment, the front support assembly 114 includes a front frame and a front guard plate arranged outside the front frame. The front frame serves as a support structure, which not only ensures the rigidity and strength of the front side of the driving body 110, but also helps to reduce the weight of the front support assembly 114; the front guard plate serves as an enclosure structure, which not only plays a role in enclosure, but also enhances the integrity and stability of the front support assembly 114. The cooperation of the front frame and the front guard plate can significantly improve the bending stiffness and impact resistance of the front support assembly 114 as a whole, and improve the safety of the driving body 110.

[0096] Exemplarily, the front frame and the front guard plate are both made of steel and are connected to each other by welding.

[0097] In some embodiments, the front frame is at least partially made of high-strength sheet metal. High-strength sheet metal is widely used in the automotive industry, and its core advantage lies in the combination of high-strength steel and advanced manufacturing processes, which significantly improves the safety, durability and lightweight level of vehicles.

[0098] In this embodiment, referring to Figure 7 and Figure 8 , the rear support assembly 115 includes a rear frame 1151 and a rear guard plate 1152 arranged outside the rear frame 1151. The rear frame 1151 serves as a support structure, which not only ensures the rigidity and strength of the rear side of the driving body 110, but also helps to reduce the weight of the rear support assembly 115; the rear guard plate 1152 serves as an enclosure structure, which not only plays a role in enclosure, but also enhances the integrity and stability of the rear support assembly 115. The cooperation of the rear frame 1151 and the rear guard plate 1152 can significantly improve the bending stiffness and impact resistance of the rear support assembly 115 as a whole, and improve the safety of the driving body 110.

[0099] Exemplarily, the rear frame 1151 and the rear guard plate 1152 are both made of steel and are connected to each other by welding.

[0100] In this embodiment, referring to Figure 7 and Figure 8 , the first side support assembly 116 includes a first inner support plate 1161 and a first outer support plate 1162 arranged outside the first inner support plate 1161. The main role of the first side support assembly 116 is to enclose, and such arrangement helps to disperse the impact force received by the first side support assembly 116 and improve the enclosure effect of the first side support assembly 116.

[0101] Specifically, the first inner support plate 1161 is provided with reinforcing ribs arranged in a cross shape, which helps to further improve the bending stiffness and torsional resistance of the first side support assembly 116.

[0102] Exemplarily, the first inner support plate 1161 and the first outer support plate 1162 are both made of steel material and are welded to each other.

[0103] In this embodiment, referring to Figure 7 and Figure 8 , the second side support assembly 117 includes a second inner support plate 1171 and a second outer support plate 1172 arranged outside the second inner support plate 1171. The main function of the second side support assembly 117 is to provide protection. In this way, the impact force received by the second side support assembly 117 can be dispersed, and the protection effect of the second side support assembly 117 can be improved.

[0104] Specifically, the second inner support plate 1171 is provided with reinforcing ribs arranged in a cross shape, which can further improve the bending stiffness and torsional performance of the second side support assembly 117.

[0105] Exemplarily, the second inner support plate 1171 and the second outer support plate 1172 are both made of steel material and are welded to each other.

[0106] Optionally, referring to Figure 3 , the three seats in the front row of seats are respectively a driver seat 1181, a co-pilot seat 1182 and a fixed seat 1183, the fixed seat 1183 is located between the driver seat 1181 and the co-pilot seat 1182, and the four seats in the rear row of seats are all fixed seats 1183.

[0107] In this embodiment, the driver seat 1181 and the co-pilot seat 1182 are both provided with a waist support and an armrest, and the driver seat 1181 and the co-pilot seat 1182 both have the functions of supporting force adjustment, front and rear position adjustment, seat cushion up and down position adjustment and backrest angle adjustment, which significantly improves the comfort of the driver. The fixed seat 1183 adopts an ergonomic design, which improves the comfort of the firefighter. In addition, the four fixed seats 1183 in the rear row of seats are all provided with mounting spaces for storing air breathing apparatuses specially used for firefighters to meet the needs of fire fighting operations.

[0108] Exemplarily, the driver seat 1181, the co-pilot seat 1182 and the fixed seat 1183 can all adopt existing seats, and the specific structure and mounting mode are not described here.

[0109] Embodiment two

[0110] As Figures 1 to 10As shown, the embodiment provides a fire truck, which comprises a frame 200 and the cab structure 100 of the first embodiment, and the driving body 110 of the cab structure 100 is rotatably arranged on the frame 200. When other equipment at the bottom of the driving body 110 fails, the space between the driving body 110 and the frame 200 can be increased by driving the driving body 110 to rotate, so as to repair the failed equipment, thereby improving the convenience of repairing the fire truck.

[0111] Optionally, referring to Figure 9 and Figure 10 , the fire truck further comprises a plurality of lifting assemblies 300, which are arranged on the frame 200 in a vertically adjustable length and are rotatably connected with the driving body 110, and the lifting assembly 300 is configured to drive the driving body 110 to rotate, so as to facilitate the repair of the fire truck.

[0112] In the embodiment, referring to Figure 9 and Figure 10 , the lifting assembly 300 comprises a first lifting piece 310 and a second lifting piece 320 which are slidably connected in the vertical direction, the first lifting piece 310 is connected with the frame 200, the second lifting piece 320 is rotatably connected with the driving body 110, and the overlapping length of the first lifting piece 310 and the second lifting piece 320 is adjustable. By driving the first lifting piece 310 and the second lifting piece 320 to slide relative to each other, the overlapping length of the first lifting piece 310 and the second lifting piece 320 changes, the height of the connection between the driving body 110 and the second lifting piece 320 changes, and the driving body 110 rotates.

[0113] Specifically, when the overlapping length of the first lifting piece 310 and the second lifting piece 320 decreases, the length of the lifting assembly 300 increases, the height of the connection between the driving body 110 and the second lifting piece 320 increases, and the included angle between the driving body 110 and the frame 200 increases; when the overlapping length of the first lifting piece 310 and the second lifting piece 320 increases, the length of the lifting assembly 300 decreases, the height of the connection between the driving body 110 and the second lifting piece 320 decreases, and the included angle between the driving body 110 and the frame 200 decreases.

[0114] Exemplarily, the lifting assembly 300 adopts a hydraulic cylinder, the first lifting piece 310 is a cylinder barrel of the hydraulic cylinder, and the second lifting piece 320 is a piston rod of the hydraulic cylinder.

[0115] In the embodiment, referring to Figure 9 and Figure 10The fire truck further comprises a locking assembly 400 arranged on the lifting assembly 300, and the locking assembly 400 is configured to lock the overlapping length of the first lifting piece 310 and the second lifting piece 320, so as to fix the length of the lifting assembly 300, thereby restricting the included angle between the driving body 110 and the vehicle frame 200, so that the driving body 110 can be stably positioned at the current position during maintenance, and the safety of the fire truck maintenance is improved.

[0116] Specifically, referring to Figure 10 The locking assembly 400 comprises a first locking piece 410 and a second locking piece 420, the first locking piece 410 is arranged on the first lifting piece 310, and the second locking piece 420 is arranged on the second lifting piece 320. The second locking piece 420 is provided with a plurality of locking holes 421 arranged in a vertical direction, and the first locking piece 410 can selectively enter any locking hole 421. The second locking piece 420 cannot move relative to the first locking piece 410, and the second locking piece 420 restricts the second lifting piece 320 from sliding relative to the first lifting piece 310, so as to lock the overlapping length of the first lifting piece 310 and the second lifting piece 320.

[0117] In some embodiments, referring to Figure 10 The locking assembly 400 further comprises a push rod 430 arranged on the first lifting piece 310, and the push rod 430 is connected with the first locking piece 410. By pushing the push rod 430, the push rod 430 can drive the first locking piece 410 to enter or leave the locking hole 421, so as to quickly lock and unlock the overlapping length of the first lifting piece 310 and the second lifting piece 320.

[0118] Exemplarily, referring to Figure 10 The first locking piece 410 adopts a block, and the second locking piece 420 adopts a rod.

[0119] Referring to Figure 9 and Figure 10 The driving body 110 can rotate at five angles relative to the vehicle frame 200, and the locking holes 421 are provided with five locking holes 421 corresponding to the five angles. The five locking holes 421 correspond to the angles in the order from bottom to top as 30 degrees, 35 degrees, 40 degrees, 45 degrees and 50 degrees.

[0120] In this embodiment, referring to Figure 9 The lifting assembly 300 is provided with two lifting assemblies 300, and the two lifting assemblies 300 are arranged symmetrically along the width direction of the vehicle frame 200, which helps to improve the stability and safety of the driving body 110 during rotation, and ensures the life and health of the maintenance personnel.

[0121] Specifically, referring to Figure 10 The two lifting assemblies 300 correspond to the two side walls in the width direction of the vehicle frame 200 one by one, and the lifting assembly 300 is arranged on the corresponding side wall.

[0122] Obviously, the above-mentioned embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes here. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A cab structure mounted to a frame (200) of a fire truck, characterized by, The cab structure (100) comprises: a driving body (110) comprising an initial section and an extended section connected along the length direction of the frame (200), the initial section and the extended section being arranged to form a seating space, the seating space comprising a front row of seating positions and a rear row of seating positions, the front row of seating positions being provided with three seats, and the rear row of seating positions being provided with four seats; a sinking suspension system (120) arranged on the side walls in the width direction of the frame (200) and connected with the driving body (110).

2. The cab structure according to claim 1, characterized by The sinking suspension system (120) comprises three groups of suspension assemblies, and the three groups of suspension assemblies are arranged at intervals along the length direction of the frame (200).

3. The cab structure according to claim 2, characterized by The suspension assembly comprises two air suspensions (121) arranged symmetrically, and the two air suspensions (121) are connected with the two side walls in the width direction of the frame (200) in one-to-one correspondence. Alternatively, the suspension assembly comprises two rubber suspensions (122) arranged symmetrically, and the two rubber suspensions (122) are connected with the two side walls in the width direction of the frame (200) in one-to-one correspondence.

4. The cab structure according to claim 1, characterized by The cab structure (100) further comprises a plurality of stepping members (131) rotatably arranged on the driving body (110), the stepping members (131) having a storage state of being vertically placed and a use state of being horizontally placed, and the stepping members (131) are switched between the storage state and the use state by driving the stepping members (131) to rotate.

5. The cab structure according to claim 4, characterized by The cab structure (100) further comprises a linear drive member (132) and a linkage frame (133), one end of the linkage frame (133) is rotatably connected with the driving body (110), the other end is rotatably connected with the output end of the linear drive member (132), the stepping members (131) are rotatably connected with the driving body (110) through the linkage frame (133), and the linear drive member (132) is arranged on the driving body (110) and used to drive the other end of the linkage frame (133) to move up and down, so that the linkage frame (133) drives the stepping members (131) to rotate relative to the driving body (110).

6. The cab structure according to claim 5, characterized by A rear opening that can be opened and closed is arranged on the driving body (110), and the cab structure (100) further comprises an identification member arranged at the rear opening, the identification member being electrically connected or communicatively connected with the linear drive member (132) and being configured to identify the opening and closing state of the rear opening, when the rear opening is opened, the linear drive member (132) drives the stepping members (131) to rotate to the use state, and when the rear opening is closed, the linear drive member (132) drives the stepping members (131) to rotate to the storage state.

7. The cab structure according to claim 4, characterized by A plurality of stepping members (131) are arranged, and the plurality of stepping members (131) are arranged at intervals in the vertical direction, and in the use state, the plurality of stepping members (131) are arranged in a stepped manner from top to bottom.

8. The cab structure according to claim 7, characterized by The treading piece (131) comprises a treading part (1311) and a connecting part (1312), one end of the connecting part (1312) is rotationally connected with the driving main body (110), the other end is connected with the treading part (1311), the length of the lower connecting part (1312) is greater than the length of the adjacent upper connecting part (1312).

9. Cab structure according to any of claims 1-8, characterized in that The driving main body (110) comprises a top support assembly (112), a bottom support assembly (113), a front support assembly (114), a rear support assembly (115), a first side support assembly (116) and a second side support assembly (117), the top support assembly (112) and the bottom support assembly (113) are arranged in a vertical direction, the upper end of the front support assembly (114), the upper end of the rear support assembly (115), the upper end of the first side support assembly (116) and the upper end of the second side support assembly (117) are connected with the top support assembly (112), the lower end of the front support assembly (114), the lower end of the rear support assembly (115), the lower end of the first side support assembly (116) and the lower end of the second side support assembly (117) are connected with the bottom support assembly (113), the front support assembly (114), the first side support assembly (116), the rear support assembly (115) and the second side support assembly (117) are connected end to end, and the top support assembly (112), the bottom support assembly (113), the front support assembly (114), the rear support assembly (115), the first side support assembly (116) and the second side support assembly (117) form the seating space.

10. The cab structure according to claim 9, characterized by The top support assembly (112) comprises a top frame (1121) and a top guard plate (1122) arranged outside the top frame (1121); The bottom support assembly (113) comprises a connecting plate (1131) and a first bottom plate (1132), a second bottom plate (1133) and a third bottom plate (1134) connected in sequence along the width direction of the vehicle frame (200), the connecting plate (1131) is connected with the first bottom plate (1132), the second bottom plate (1133) and the third bottom plate (1134), the first bottom plate (1132) is connected with the bottom of the first side support assembly (116), and the third bottom plate (1134) is connected with the bottom of the second side support assembly (117); The front support assembly (114) comprises a front frame and a front guard plate arranged outside the front frame; The rear support assembly (115) comprises a rear frame (1151) and a rear guard plate (1152) arranged outside the rear frame (1151); The first side support assembly (116) comprises a first inner support plate (1161) and a first outer support plate (1162) arranged outside the first inner support plate (1161); The second side support assembly (117) comprises a second inner support plate (1171) and a second outer support plate (1172) arranged outside the second inner support plate (1171).

11. A fire truck characterized by The cab structure (100) comprises a cab body (110) and a second side support assembly (117), the second side support assembly (117) comprises a second inner support plate (1171) and a second outer support plate (1172) arranged outside the second inner support plate (1171).

12. The fire apparatus of claim 11, wherein, The fire truck further comprises a plurality of lifting assemblies (300) arranged on the frame (200) in a vertically adjustable manner and connected with the cab body (110) in a rotatable manner, and the lifting assemblies (300) are configured to drive the cab body (110) to rotate.

13. The fire apparatus of claim 12, wherein, The lifting assembly (300) comprises a first lifting member (310) and a second lifting member (320) connected in a vertically slidable manner, the first lifting member (310) is connected with the frame (200), the second lifting member (320) is connected with the cab body (110) in a rotatable manner, and the overlapping length of the first lifting member (310) and the second lifting member (320) is adjustable.

14. The fire apparatus of claim 13, wherein, The fire truck further comprises a locking assembly (400) arranged on the lifting assembly (300), and the locking assembly (400) is configured to lock the overlapping length of the first lifting member (310) and the second lifting member (320).

15. The fire apparatus of claim 14, wherein, The locking assembly (400) comprises a first locking member (410) and a second locking member (420), the first locking member (410) is arranged on the first lifting member (310), the second locking member (420) is arranged on the second lifting member (320), a plurality of locking holes (421) are arranged on the second locking member (420) in a vertically spaced manner, and the first locking member (410) can selectively be clamped into any one of the locking holes (421).

16. The apparatus of claim 12, wherein, The lifting assembly (300) is arranged in a symmetrical manner along the width direction of the frame (200).

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