Turntable ladder and fire fighting truck

Abstract

The utility model provides a turntable ladder and a fire fighting truck, and relates to the technical field of fire fighting equipment. The rotary table ladder comprises a rotary table body; the supporting assembly is connected with the rotary table body; the telescopic assembly comprises a first telescopic part and a second telescopic part, the first telescopic part is connected with the supporting assembly, the first telescopic part is movably connected with the second telescopic part, and the second telescopic part moves relative to the first telescopic part so as to be unfolded or folded. The rotary table body is connected with the first telescopic piece through the supporting assembly, and when the rotary table body is not rotated, the second telescopic piece can move relative to the first telescopic piece to be away from the first telescopic piece, so that the telescopic assembly is integrally unfolded and convenient to use; when the rotary table body needs to be rotated, the second telescopic piece moves relative to the first telescopic piece to be close to the first telescopic piece, so that the second telescopic piece covers the first telescopic piece, the extension length of the telescopic assembly is shortened, and interference to other components during rotation of the rotary table body is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire-fighting equipment, and particularly relates to a rotating platform ladder and a fire truck. BACKGROUND

[0002] A fire truck is an important rescue equipment. A rotating platform ladder is arranged on the fire truck, which is used for firefighters to climb to a high place to extinguish fire and rescue, especially in high-rise buildings. With the development of technology, the functions of the fire truck are more and more, the performance is higher and higher, and the space of the whole vehicle is also more and more compact.

[0003] In the prior art, the fire truck mainly adopts a fixed rotating platform ladder, which comprises a rotating platform and a fixed ladder. The fixed ladder is arranged on the rotating platform, and the fixed ladder rotates with the rotating platform to move to a target position.

[0004] However, the fixed ladder occupies a large space, and in a limited space, the rotating process of the fixed ladder is easy to affect other components. CONTENT OF THE INVENTION

[0005] The present application provides a rotating platform ladder and a fire truck to solve the problem that the fixed ladder in the prior art occupies a large space, and in a limited space, the rotating process of the fixed ladder is easy to affect other components.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] In one aspect, the present application provides a rotating platform ladder, comprising:

[0008] a rotating platform body;

[0009] a support assembly connected with the rotating platform body;

[0010] a telescopic assembly, the telescopic assembly comprising a first telescopic member and a second telescopic member, the first telescopic member being connected with the support assembly, the first telescopic member being movably connected with the second telescopic member, and the second telescopic member being movable relative to the first telescopic member to be unfolded or folded.

[0011] In one possible implementation, the rotating platform ladder in the embodiment of the present application, the first telescopic member is movably connected with the second telescopic member, or the first telescopic member is rotatably connected with the second telescopic member.

[0012] In one possible implementation, the rotating platform ladder in the embodiment of the present application, at least one of the first telescopic member and the second telescopic member has a first sliding part, and the other of the first telescopic member and the second telescopic member has a second sliding part, the first sliding part being movably connected with the second sliding part.

[0013] In one possible implementation, the rotating platform ladder in the embodiment of the present application, the second telescopic member is an electric telescopic ladder or a pneumatic telescopic ladder.

[0014] In a possible implementation, the turntable ladder further includes a limiting assembly, which is arranged on the supporting assembly and is configured to be connected with or disconnected from the second telescopic member, so as to keep the telescopic assembly in an unfolded state or move the second telescopic member relative to the first telescopic member, so that the second telescopic member covers the first telescopic member to fold the telescopic assembly.

[0015] In a possible implementation, the limiting assembly includes a limiting member and an adjusting member, the limiting member is provided with a limiting slot, the supporting assembly is provided with a mounting hole, and the adjusting member passes through the limiting slot and the mounting hole in sequence to be connected with the supporting assembly.

[0016] The adjusting member is configured to abut against or disengage from the second telescopic member by moving relative to the mounting hole.

[0017] In a possible implementation, the limiting assembly includes a limiting member and an adjusting member, the limiting member is provided with a limiting slot, the supporting assembly is provided with a mounting hole, and the adjusting member passes through the limiting slot and the mounting hole in sequence to be connected with the supporting assembly.

[0018] The adjusting member is configured to abut against or disengage from the second telescopic member by moving relative to the mounting hole.

[0019] In a possible implementation, the limiting member includes at least two limiting blocks, one side of each limiting block is provided with a clearance, and the two limiting blocks are arranged in sequence, and the adjacent clearances form the limiting slot.

[0020] In a possible implementation, the limiting slot is an annular clamping slot.

[0021] In another aspect, the present application provides a fire truck, which includes a body and the above-mentioned turntable ladder.

[0022] The application provides a rotating platform ladder and a fire truck, the rotating platform ladder comprises a rotating platform body, a supporting assembly, and a telescopic assembly. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0024] Figure 1 A structural schematic view of the rotating platform ladder provided by the embodiment of the application is shown in the figure;

[0025] Figure 2 A structural schematic view of the rotating platform ladder in a folded state provided by the embodiment of the application is shown in the figure;

[0026] Figure 3 A structural schematic view of the rotating platform ladder in an unfolded state provided by the embodiment of the application is shown in the figure;

[0027] Figure 4 A structural schematic view of the limiting assembly provided by the embodiment of the application is shown in the figure;

[0028] Figure 5 A structural schematic view of the limiting assembly provided by the embodiment of the application is shown in the figure; Figure 4 A structural schematic view of the limiting assembly provided by the embodiment of the application is shown in the figure;

[0029] Figure 6 A structural schematic view of the limiting assembly provided by the embodiment of the application is shown in the figure; Figure 4 A structural schematic view of the limiting assembly provided by the embodiment of the application is shown in the figure;

[0030] Figure 7 A structural schematic view of the supporting assembly provided by the embodiment of the application is shown in the figure;

[0031] Figure 8 A structural schematic view of the telescopic assembly provided by the embodiment of the application is shown in the figure; Figure 1

[0032] Figure 9 A structural schematic view of the telescopic assembly provided by the embodiment of the application is shown in the figure;​Figure 7 Structure diagram of the telescopic assembly in the expanded state;

[0033] Figure 10 Structure diagram of the telescopic assembly provided in the embodiments of the present application Figure 2 .

[0034] Legend of reference signs:

[0035] 100-turret body; 110-supporting seat;

[0036] 200-supporting assembly; 210-mounting hole; 220-cross bar; 221-fixing hole; 222-first matching hole;

[0037] 300-telescopic assembly;

[0038] 310-first telescopic piece;

[0039] 320-second telescopic piece;

[0040] 400-limiting assembly;

[0041] 410-limiting piece; 411-limiting groove; 412-limiting block; 413-avoiding part;

[0042] 420-adjusting piece; 422-clamping part; 423-adjusting shaft; 424-adjusting baffle;

[0043] 500-detecting piece.

[0044] The specific embodiments of the present application have been shown in the above-described drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0045] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar components. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0046] It should be noted that, in the description of the embodiments of the present application, the terms “upper”, “lower”, “inner”, “outer” and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of description, and do not indicate or imply that the device or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] In addition, it also needs to be explained that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features, so that the features with "first", "second" can explicitly or implicitly include one or more of the features, and in the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0048] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "fixing" and the like 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 or can communicate with each other; 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.

[0049] First, the related concepts or terms involved in the present application are explained:

[0050] The fire truck is an important rescue equipment. The fire truck is equipped with a rotating ladder for firefighters to climb to extinguish fires and rescue, especially in high-rise buildings. With the development of technology, the functions of the fire truck are more and more, the performance is higher and higher, and also makes the whole space of the vehicle more and more compact.

[0051] In the prior art, the fire truck mainly adopts a fixed rotating ladder, which includes a rotating table and a fixed ladder. The fixed ladder is arranged on the rotating table, and the fixed ladder rotates with the rotating table to move to the target position. However, the fixed ladder occupies a large space, and in a limited space, the rotating process of the fixed ladder is easy to affect other components.

[0052] In view of the above, the application provides a rotating platform ladder and a fire truck. The rotating platform ladder comprises a rotating platform body, a supporting assembly connected with the rotating platform body, and a telescopic assembly comprising a first telescopic member and a second telescopic member. The first telescopic member is connected with the supporting assembly, and the first telescopic member is movably connected with the second telescopic member. The second telescopic member is movable relative to the first telescopic member to be unfolded or folded. The supporting assembly connects the rotating platform body with the first telescopic member, and the first telescopic member is movably connected with the second telescopic member, so that the second telescopic member is movable relative to the first telescopic member. When the rotating platform body does not need to be rotated (for example, when a rescue operation is performed), the second telescopic member is movable relative to the first telescopic member to move away from the first telescopic member, so that the telescopic assembly is unfolded as a whole, thereby facilitating use. When the rotating platform body needs to be rotated (for example, when the rotating platform body needs to be moved to a target position), the second telescopic member is movable relative to the first telescopic member to move close to the first telescopic member, so that the telescopic assembly is folded as a whole, that is, the second telescopic member covers the first telescopic member, thereby shortening the extension length of the telescopic assembly to reduce interference with other components when the rotating platform body is rotated.

[0053] The application will be described in detail below with reference to the accompanying drawings and specific embodiments. Figures 1 to 10

[0054] In one aspect, the application provides a rotating platform ladder, which comprises a rotating platform body 100, a supporting assembly 200 connected with the rotating platform body 100, and a telescopic assembly 300 comprising a first telescopic member 310 and a second telescopic member 320. The first telescopic member 310 is connected with the supporting assembly 200, and the first telescopic member 310 is movably connected with the second telescopic member 320. The second telescopic member 320 is movable relative to the first telescopic member 310 to be unfolded or folded.

[0055] The rotating platform body 100 is provided with a supporting seat 110 for connecting with the supporting assembly 200.

[0056] The supporting assembly 200 is provided with a wire clamp for electrically fixing a wire harness. The supporting seat 110 is provided with a plurality of first assembly holes on the periphery, and the supporting assembly 200 is provided with a plurality of second assembly holes on the periphery. Each first assembly hole corresponds to each second assembly hole. A first connecting member passes through the first assembly holes and the second assembly holes in sequence to connect the supporting assembly 200 with the rotating platform body 100. The first connecting member can be a bolt, a screw or a pin shaft, and the application does not limit this.

[0057] ​The support assembly 200 is formed by welding a plurality of rectangular tubes, and mounting holes for connecting the telescopic assembly 300 are arranged on the support assembly 200. For example, the support assembly 200 includes a plurality of cross bars 220 and a first longitudinal bar. For ease of description, the cross bars are named as a first cross bar, a second cross bar and a third cross bar, and the first cross bar, the second cross bar and the third cross bar are all connected with the first longitudinal bar. The first cross bar and the second cross bar are located on the same side of the first longitudinal bar, and the first cross bar and the second cross bar are arranged at intervals along the extension direction of the first longitudinal bar. The third cross bar is arranged away from the first cross bar, and the third cross bar is located between the first cross bar and the second cross bar.

[0058] The first cross bar and the second cross bar are both used for connecting with the first telescopic piece 310. The two ends of the first cross bar and the second cross bar are both provided with fixing holes 221, and the first telescopic piece 310 is provided with connecting lugs matched with the fixing holes 221. The connecting lugs are a plurality of connecting lugs, and each connecting lug is connected with each fixing hole 221, so as to realize the connection between the support assembly 200 and the first telescopic piece 310.

[0059] The second cross bar is provided with mounting holes 210 for connecting with the limiting assembly 400, and the mounting holes 210 are through holes. When the telescopic assembly 300 is switched from the folded state to the stretched state, the limiting assembly 400 is lifted, the limiting assembly 400 is moved along the axis of the mounting hole 210, and the limiting assembly 400 is rotated by 90 degrees, so that the limiting assembly 400 is separated from the abutment of the second telescopic piece 320, the second telescopic piece 320 is moved relative to the first telescopic piece 310, and thus the telescopic assembly 300 is unfolded, which is convenient for use.

[0060] The third cross bar is used for connecting with the support assembly 200, and the third cross bar is provided with a second support seat connected with the support seat 110.

[0061] The turntable ladder in the embodiment of the application connects the turntable body 100 with the first telescopic piece 310 through the support assembly 200, and the first telescopic piece 310 is movably connected with the second telescopic piece 320, so that the second telescopic piece 320 can move relative to the first telescopic piece 310. When the turntable body is not needed to be rotated (for example, when the turntable body is used for high-altitude rescue), the second telescopic piece 320 can move relative to the first telescopic piece 310 to move away from the first telescopic piece 310, so that the telescopic assembly 300 is unfolded as a whole, which is convenient for use. When the turntable body 100 needs to be rotated (for example, when the turntable body needs to be moved to a target position), the second telescopic piece 320 moves relative to the first telescopic piece 310 to move close to the first telescopic piece 310, so that the telescopic assembly 300 is folded as a whole, that is, the second telescopic piece 320 covers the first telescopic piece 310, which shortens the extension length of the telescopic assembly 300, so as to reduce the interference of the turntable body 100 with other components when the turntable body 100 is rotated.

[0062] In some other embodiments, the support base 110 is provided with an electrical hole and a wiring slot, the wiring slot is located on one side of the electrical hole and communicates with the electrical hole, and the electrical hole is arranged in the middle of the support base 110. The electrical hole corresponds to the hole of the vertical plate 120 on the rotary table body 100, the wiring slot is connected with the electrical hole, and all of them are used for reserving a wiring hole or a wiring space for electrical design.

[0063] In a possible implementation, the rotary table ladder in the embodiment of the present application is connected with the first telescopic part 310 and the second telescopic part 320 in a sliding manner or in a rotating manner.

[0064] The first telescopic part 310 is connected with the second telescopic part 320 in a rotating manner, for example, the first telescopic part 310 and the second telescopic part 320 are hinged. Specifically, the first telescopic part 310 is a fixed ladder, the second telescopic part 320 is a movable ladder, the limiting assembly 400 is a lock, and the fixed ladder and the movable ladder are in a folding form to make the telescopic assembly 300 unfolded or folded. The fixed ladder is fixed on the support assembly 200, the movable ladder is connected with the fixed ladder through a hinge shaft and is fixed on the fixed ladder through the lock. When it is needed to use, the lock is opened, the movable ladder is rotated to an unfolded state, and then the rotary table ladder is used to climb to the main ladder.

[0065] The embodiment of the present application realizes flexible unfolding and folding of the telescopic assembly 300 through sliding connection or rotating connection. The above two connection modes can effectively reduce the storage space and avoid interference between the rotary table body 100 and other components during rotation.

[0066] The first telescopic part 310 and the second telescopic part 320 are connected with each other in a sliding manner.

[0067] The first telescopic part 310 can be a fixed ladder and is formed by butt welding of two side main beams, an intermediate ladder step and a connecting lug plate. The second telescopic part 320 can also be a telescopic ladder and is formed by butt welding of two side main beams and an intermediate ladder step. The first telescopic part 310 is provided with a first sliding part 311, and the first sliding part 311 includes two first sliding blocks. The second telescopic part 320 is provided with a second sliding part 312, and the second sliding part includes two second sliding blocks.

[0068] The upper and lower ends of each main beam of the first telescopic member 310 are respectively provided with a sliding block assembly hole, and two first sliding blocks can be assembled. The main beam of the second telescopic member 320 is provided with a sliding block assembly hole, and a second sliding block is installed respectively. The first sliding block cooperates with the second sliding block to realize the sliding connection of the first telescopic member 310 and the second telescopic member 320. Four connecting ear plates are further arranged on the first telescopic member 310 to correspond to four second fixing holes, so that the first telescopic member 310 is connected with the support assembly 200.

[0069] In addition, a waist type adjusting hole is reserved on the main beam of the first telescopic member 310, so that the function of an electrical induction switch can be conveniently added. The main beam of the second telescopic member 320 is further provided with an induction plate assembly hole, which is used in cooperation with the waist hole of the first telescopic member 310, so that the electrical induction switch can be arranged to detect whether the telescopic assembly 300 is folded in place.

[0070] Of course, the first sliding part 311 can be a sliding groove, which is arranged on the first telescopic member 310, and the second sliding part 312 is a sliding block, which is arranged on the second telescopic member 320, and the sliding block is in sliding connection with the sliding groove.

[0071] The first sliding part 311 and the second sliding part 312 are arranged in the application, which can ensure that the telescopic assembly 300 remains stable and guided during movement, so that the expansion or folding of the telescopic assembly 300 is smooth and stable.

[0072] In a possible implementation manner, the turntable ladder in the embodiment of the application is an electric telescopic ladder or a pneumatic telescopic ladder.

[0073] Optionally, it should be noted that the expansion and folding of the telescopic assembly 300 can also be realized by other ways. For example, the relative movement of the first telescopic member 310 and the second telescopic member 320 can be realized by an electric push rod, a telescopic oil cylinder or other electrical and hydraulic components, so as to realize automatic expansion and folding and improve operation efficiency, but the relative cost is relatively high, the structure is relatively complex, and the electrical lines and hydraulic lines are exposed, which may affect the appearance.

[0074] The structure of the telescopic assembly 300 controlled by electricity or hydraulic pressure can be as follows. A fixed mounting seat is arranged on the cross beam of the support assembly 200, another fixed mounting seat is arranged on the second telescopic member 320, and an electric push rod or a telescopic oil cylinder with appropriate stroke is installed between the two mounting seats. The expansion or contraction of the electric push rod or the expansion or contraction of the telescopic oil cylinder drives the movement of the second telescopic member 320 relative to the first telescopic member 310, so as to realize the expansion or folding of the telescopic assembly 300.

[0075] Optionally, the folding form of the telescopic assembly 300 can be combined with electrical control or hydraulic control to form another structure of the telescopic assembly 300. For example, the telescopic assembly 300 is a folding ladder.

[0076] In a possible implementation, the turntable ladder in the embodiment of the present application further comprises a limiting assembly 400, which is arranged on the support assembly 200 and is used to connect or disconnect with the second telescopic piece 320, so that the telescopic assembly 300 is kept in the unfolded state or the second telescopic piece 320 moves relative to the first telescopic piece 310, so that the second telescopic piece 320 covers the first telescopic piece 310, and the telescopic assembly 300 is folded.

[0077] Compared with the conventional fixed turntable ladder, the present application can switch the telescopic assembly 300 between the unfolded and folded states through the limiting assembly 400. In the folded state, the space required by the turntable ladder is small when the turntable body 100 rotates, and other components are not affected. When the turntable ladder is used, the telescopic assembly 300 is unfolded, and when the turntable ladder is not needed, the telescopic assembly 300 is folded, and the rotation of the turntable body 100 is not affected.

[0078] In a possible implementation, the turntable ladder in the embodiment of the present application, the limiting assembly 400 comprises a limiting piece 410 and an adjusting piece 420, the limiting piece 410 is provided with a limiting slot 411, the support assembly 200 is provided with a mounting hole 210, and the adjusting piece 420 passes through the limiting slot 411 and the mounting hole 210 in sequence to be connected with the support assembly 200.

[0079] The adjusting piece 420 moves relative to the mounting hole 210 to abut or disengage with the second telescopic piece 320. The adjusting piece 420 comprises a clamping portion 422, an adjusting shaft 423 and an adjusting baffle 424, the clamping portion 422 and the adjusting baffle 424 are arranged at two ends of the adjusting shaft 423 respectively, the clamping portion 422 is used to clamp the limiting slot 411, the adjusting shaft 423 passes through the limiting slot 411 and the mounting hole 210 in sequence to be connected with the support assembly 200, and the adjusting baffle 424 is used to abut with the second telescopic piece 320.

[0080] The adjusting shaft 423 moves along the extension direction of the mounting hole 210 and rotates around the axis of the mounting hole 210 to drive the adjusting baffle 424 to abut or disengage with the second telescopic piece 320. Through the composite operation of the axial movement and the rotation action, quick locking and releasing can be realized, accidental unlocking caused by single action is avoided, and accidental switching of the telescopic assembly 300 from the folded state to the unfolded state is avoided. The adjusting baffle 424 increases the contact area with the second telescopic piece 320 and enhances the support force on the second telescopic piece 320

[0081] In a possible implementation, the turntable ladder in the embodiment of the present application, the limiting piece 410 comprises at least two limiting blocks 412, one side of the limiting block 412 is provided with an avoiding part 413, the two limiting blocks 412 are sequentially arranged, and the adjacent two avoiding parts 413 surround to form the limiting slot 411.

[0082] The limiting block 412 is provided with a matching hole, the support assembly 200 is provided with a first matching hole 222 connected with the matching hole, the axes of the matching hole and the first matching hole 222 are located on the same line, and the number of the first matching hole 222 can be set according to the number of the limiting block 412 and the number of the matching hole. For example, the matching hole is arranged in the middle of the limiting block 412, the second connecting piece sequentially passes through the matching hole and the first matching hole 222, so that the limiting block 412 is fixed on the support assembly 200. The split limiting block 412 is convenient for processing and maintenance, and when a single limiting block 412 is damaged, it can be directly replaced, thereby reducing the maintenance cost. The symmetrical layout of the avoiding part 413 makes the limiting slot 411 balanced in force, and avoids unilateral wear. The matching hole on the limiting block 412 is connected with the first matching hole 222 of the support assembly 200, so that the installation is flexible.

[0083] The two limiting blocks 412 are sequentially arranged, the avoiding parts 413 of the limiting blocks 412 are oppositely arranged, and the avoiding parts 413 surround to form the limiting slot 411.

[0084] It should be noted that the shape of the limiting slot 411 is not limited in the present application, and the limiting slot 411 can be a fan-shaped, U-shaped, etc. Among them, the limiting slot 411 is a ring-shaped clamping slot, and the limiting slot 411 is used in cooperation with the clamping part 422 of the adjusting piece 420. In use, the adjusting piece 420 needs to be lifted along the axis direction of the mounting hole 210, so that the clamping part 422 is disengaged from the clamping of the limiting slot 411, and then the adjusting piece 420 is rotated, so that the clamping part 422 of the clamping part 422 is rotated to the next clamping slot in the limiting slot 411, and the adjusting piece 420 is placed along the axis direction of the mounting hole 210, so that the clamping part 422 is clamped with the limiting slot 411.

[0085] In a possible implementation, the turntable ladder in the embodiment of the present application, the detecting piece 500 is further provided, and the detecting piece 500 is used for detecting the position of the second telescopic piece 320.

[0086] The detection piece 500 is arranged on the side of the second telescopic piece 320 facing the turntable body 100, and is used to detect the position of the second telescopic piece 320, so as to determine whether the telescopic assembly 300 is unfolded or folded to the position, thereby avoiding the telescopic assembly 300 from rotating with the turntable body 100 when the telescopic assembly 300 is not folded to the position, and causing a dangerous situation. The specific structure of the detection piece 500 is not limited, and the detection piece 500 can be an induction plate for example. The second telescopic piece 320 is provided with an induction plate assembly hole, the induction plate assembly hole is connected with the induction plate, the first telescopic piece 310 is provided with an electrical induction switch matched with the induction plate for detection, and the first telescopic piece 310 is provided with a waist hole for mounting the electrical induction switch. The electrical induction switch and the induction plate are matched to detect whether the second telescopic piece 320 is folded to the position.

[0087] In another aspect, the application provides a fire fighting truck comprising a body and a turntable ladder in any of the above embodiments arranged on the body.

[0088] The application does not limit the type of fire fighting truck, and the fire fighting truck can be classified into a micro fire fighting truck, a light fire fighting truck, a medium fire fighting truck and a heavy fire fighting truck according to the carrying capacity of the chassis of the fire fighting truck; a single-axle fire fighting truck, a double-axle fire fighting truck, a flat-head fire fighting truck and a pointed-head fire fighting truck according to the appearance structure; a front-mounted pump fire fighting truck, i.e. a water pump is arranged at the front end of the fire fighting truck; a middle-mounted pump fire fighting truck, i.e. a water pump is arranged at the middle position of the fire fighting truck; and an inverted pump fire fighting truck, i.e. a water pump is arranged at the side of the frame.

[0089] It should be noted that the arrangement of the turntable ladder on the fire fighting truck can be adjusted according to the actual situation, and the turntable ladder is opposite to the main ladder of the fire fighting truck for example, so as to facilitate climbing.

[0090] It can be understood that when the turntable ladder is integrated into the fire fighting truck, the folding state of the turntable ladder can greatly reduce the space required for rotation, and adapt to the mobile demand of a narrow rescue site; and after being unfolded, the turntable ladder provides a rapid climbing path and shortens the rescue response time. Through the modularization of the turntable ladder, the turntable ladder can be adapted to various fire fighting truck models, and the universality is enhanced. In addition, the combination of the electrical wiring groove and the induction detection function enables the turntable ladder to work cooperatively with other systems (such as a ladder platform and a water pump) of the fire fighting truck, and improves the overall rescue efficiency.

[0091] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0092] It is to be understood that the application is not limited to the precise construction herein described and as shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A turntable ladder characterized by, The trolley comprises: a trolley body; a support assembly connected with the trolley body; a telescopic assembly comprising a first telescopic member and a second telescopic member, the first telescopic member being connected with the support assembly, the first telescopic member being movably connected with the second telescopic member, and the second telescopic member being movable relative to the first telescopic member to be unfolded or folded.

2. The turntable ladder of claim 1, wherein, The first telescopic member is slidably connected with the second telescopic member, or the first telescopic member is rotatably connected with the second telescopic member.

3. The turntable ladder of claim 2 wherein, At least one of the first telescopic member and the second telescopic member has a first sliding part, and the other of the first telescopic member and the second telescopic member has a second sliding part, the first sliding part being slidably connected with the second sliding part.

4. Turntable ladder according to any of claims 1-3, characterized in that The second telescopic member is an electric telescopic ladder or a pneumatic telescopic ladder.

5. Turntable ladder according to any of claims 1-3, characterized in that The trolley further comprises a limiting assembly arranged on the support assembly, the limiting assembly being used to be disconnected or connected with the second telescopic member, so that the telescopic assembly is kept in an unfolded state or the second telescopic member is movable relative to the first telescopic member to cover the first telescopic member, so that the telescopic assembly is folded.

6. The turntable ladder of claim 5 wherein, The limiting assembly comprises a limiting member and an adjusting member, the limiting member has a limiting slot, the support assembly has a mounting hole, and the adjusting member passes through the limiting slot and the mounting hole in sequence to be connected with the support assembly. The adjusting member is movable relative to the mounting hole to abut against or be disconnected from the second telescopic member.

7. The turntable ladder of claim 6 wherein, The adjusting member comprises a clamping part, an adjusting shaft and an adjusting baffle, the clamping part and the adjusting baffle are arranged at two ends of the adjusting shaft respectively, the clamping part is used to be clamped with the limiting slot, the adjusting shaft passes through the limiting slot and the mounting hole in sequence to be connected with the support assembly, and the adjusting baffle is used to abut against the second telescopic member. The adjusting shaft is movable along the extension direction of the mounting hole and rotatable about the axis of the mounting hole to drive the adjusting baffle to abut against or be disconnected from the second telescopic member.

8. The turntable ladder of claim 6 wherein, The limiting member comprises at least two limiting blocks, one side of the limiting block has an avoiding part, and two limiting blocks are arranged in sequence, and adjacent two avoiding parts surround to form the limiting slot.

9. The turntable ladder of claim 6 wherein, The limiting slot is an annular clamping slot.

10. A fire apparatus characterized by, The trolley further comprises a body and the trolley ladder according to any one of claims 1-9 arranged on the body.

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