Arm support structure and vehicle

Abstract

The utility model relates to the field of arm supports, and provides an arm support structure and a vehicle. The boom structure comprises a main boom; the connecting rod assembly is used for being connected between the working platform and the main arm frame and comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged to the main arm frame, the first end of the second connecting rod is hinged to the working platform, and the second end of the first connecting rod is hinged to the second end of the second connecting rod; the first end of the acting piece is hinged to the main arm frame, the second end of the acting piece is hinged to the second end of the first connecting rod and the second end of the second connecting rod, the acting piece is suitable for being switched between an extending state and a retracting state, the acting piece is suitable for driving the working platform to be switched to the horizontal state in the retracting state, and the acting piece is suitable for driving the working platform to be switched to the horizontal state in the extending state. The action piece is suitable for driving the working platform to be switched to the overturning state. According to the arm support structure, the working platform can be self-locked through the pole position of the lower stroke of the action piece, and it is guaranteed that the working platform can be in a horizontal state; and relatively high stability and bearing capacity are kept.

Description

Technical Field

[0001] This utility model relates to the field of booms, and provides a boom structure and vehicle. Background Technology

[0002] In related technologies, aerial ladder rescue booms typically have a rescue platform mounted on top. However, due to internal leakage in the hydraulic cylinders or unforeseen errors caused by manufacturing processes, the rescue platform may unexpectedly overturn under its own weight during use or while in motion. This overturning can cause personnel on the rescue platform to fall, damage equipment below the platform, or even affect the vehicle's cab, increasing safety hazards. Utility Model Content

[0003] This utility model provides a boom structure to solve the defect in related technologies where rescue platforms cannot self-lock.

[0004] This utility model embodiment also provides a vehicle.

[0005] The first aspect of this utility model provides a boom structure, including:

[0006] Main boom;

[0007] A linkage assembly for connecting the work platform and the main boom, the linkage assembly including a first link and a second link, a first end of the first link being hinged to the main boom, a first end of the second link being hinged to the work platform, and a second end of the first link being hinged to the second end of the second link;

[0008] The actuator has a first end hinged to the main boom and a second end hinged to the second end of the first link and the second end of the second link. The actuator is adapted to switch between an extended state and a retracted state. In the retracted state, the actuator is adapted to drive the work platform to switch to a horizontal state. In the extended state, the actuator is adapted to drive the work platform to switch to a tilting state.

[0009] According to one embodiment of the present invention, the second end of the first connecting rod is provided with one of a stop block and a limiting block, and the second end of the second connecting rod is provided with the other of the stop block and the limiting block. In the retracted state, the stop block and the limiting block abut against each other.

[0010] According to one embodiment of the present invention, the lines connecting the hinge point of the first connecting rod and the main boom, the hinge point of the first connecting rod and the second connecting rod, the hinge point of the second connecting rod and the working platform, and the hinge point of the actuator and the main boom form a quadrilateral structure.

[0011] According to one embodiment of the present invention, in the retracted state, the hinge point between the first link and the main boom and the hinge point between the second link and the working platform are in the same plane, and the plane is parallel to the plane where the working platform is located.

[0012] According to one embodiment of the present invention, two ladders are provided on the main boom along the width direction, and the two ladders extend along the length direction of the main boom.

[0013] According to one embodiment of the present invention, the actuating element includes:

[0014] A hydraulic cylinder, which is hinged to the main boom;

[0015] A hydraulic rod is telescopically inserted into the hydraulic cylinder, the extended end of the hydraulic rod being hinged to the second end of the first connecting rod and the second end of the second connecting rod, and the hydraulic rod is adapted to switch between the extended state and the retracted state.

[0016] According to one embodiment of the present invention, there are two first connecting rods and two second connecting rods, and the two first connecting rods and the two second connecting rods are symmetrically arranged about the center line of the width direction of the main boom.

[0017] According to one embodiment of the present invention, the second ends of the two first connecting rods are hinged to the second ends of the two second connecting rods at a hinge shaft, and the extended end of the hydraulic rod is hinged to the hinge shaft.

[0018] According to one embodiment of the present invention, the extended end of the hydraulic rod is hinged to the middle of the hinge shaft.

[0019] A second aspect of this utility model provides a vehicle including the above-described boom structure.

[0020] According to the boom structure provided in the first aspect of this utility model, the telescopic movement of the actuator allows for convenient switching between a horizontal and a tilted state of the work platform, meeting various operational needs. When the actuator is in the retracted state, since it has reached the limit position of its lower stroke, and the work platform is in a horizontal state, the lower stroke limit position of the actuator can achieve self-locking of the work platform, ensuring that the work platform remains in a horizontal state. The four-bar linkage design ensures that the linkage assembly maintains strong stability and load-bearing capacity under stress, effectively preventing structural damage due to excessive load or improper operation. The telescopic control of the actuator is relatively simple, reducing operational difficulty and complexity. This boom structure is suitable for various scenarios requiring the work platform to tilt or be horizontally positioned, such as firefighting, rescue, and high-altitude operations.

[0021] According to the second aspect of this utility model, due to the adoption of the above-mentioned optimized boom structure, the vehicle exhibits higher stability and operational efficiency during operation. Simultaneously, the rational structural design reduces vehicle maintenance costs and ease of use. The optimized boom structure enables the vehicle to more easily perform high-altitude operations and long-distance material handling, thereby improving the vehicle's operational capabilities and applicability. Through the special design of the linkage assembly and hinge method, the boom structure maintains better stability during extension and retraction, avoiding safety hazards caused by swaying or vibration. The extended end of the hydraulic rod is hinged to the middle of the hinge shaft, ensuring uniform distribution of driving force, enabling the boom structure to maintain smooth and coordinated movement during extension and retraction. The rational structural design reduces wear and malfunctions caused by mechanical stress and vibration, thereby lowering vehicle maintenance costs and ease of use. Because the boom structure design is more rational and efficient, extension, retraction, and rotation actions can be achieved more quickly, thus improving the vehicle's operational efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic top view of the boom structure provided by this utility model.

[0024] Figure 2 This is a schematic perspective view of the boom structure provided by this utility model.

[0025] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0026] Figure label:

[0027] 100. Main boom; 102. Working platform; 104. First link; 106. Second link; 108. Action component; 110. Stop block; 112. Limit block; 114. Ladder; 116. Hydraulic cylinder; 118. Hydraulic rod; 120. Hinge shaft. Detailed Implementation

[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0029] like Figures 1 to 3 As shown, a first aspect embodiment of the present invention provides a boom structure, comprising:

[0030] Main boom 100;

[0031] A linkage assembly is used to connect the work platform 102 and the main boom 100. The linkage assembly includes a first link 104 and a second link 106. The first end of the first link 104 is hinged to the main boom 100, the first end of the second link 106 is hinged to the work platform 102, and the second end of the first link 104 is hinged to the second end of the second link 106.

[0032] Actuator 108, the first end of actuator 108 is hinged to main boom 100, the second end of actuator 108 is hinged to the second end of first link 104 and the second end of second link 106. Actuator 108 is adapted to switch between extended state and retracted state. In retracted state, actuator 108 is adapted to drive work platform 102 to switch to horizontal state. In extended state, actuator 108 is adapted to drive work platform 102 to switch to tilting state.

[0033] According to the boom structure provided in the first aspect embodiment of this utility model, the telescopic movement of the actuator 108 can easily switch the work platform 102 between a horizontal state and a tilted state to meet different operational needs. When the actuator 108 is in the retracted state, since the actuator 108 has reached the limit position of its lower stroke, and the work platform 102 is in a horizontal state at this time, the lower stroke limit position of the actuator 108 can achieve self-locking of the work platform 102, ensuring that the work platform 102 can remain in a horizontal state. Through the design of the four-bar linkage, the linkage assembly can maintain strong stability and load-bearing capacity under force, effectively preventing structural damage caused by excessive load or improper operation. The telescopic control of the actuator 108 is relatively simple, reducing the difficulty and complexity of operation. This boom structure is suitable for various scenarios that require the work platform 102 to tilt or be positioned horizontally, such as fire fighting, rescue, and high-altitude operations.

[0034] Please continue reading Figures 1 to 3 The boom structure of this utility model is mainly designed to connect the working platform 102 with the slewing platform, enabling the working platform 102 to be flexibly tilted and horizontally positioned. The boom structure includes three core components: the main boom 100, the connecting rod assembly, and the actuator 108.

[0035] Among them, the main boom 100 serves as the support and fixing part of the entire structure. The main boom 100 is responsible for bearing and transmitting the forces and torques from the working platform 102 and the linkage assembly.

[0036] The linkage assembly consists of a first link 104 and a second link 106, which are hinged together between the main boom 100 and the work platform 102. The first end of the first link 104 is hinged to the main boom 100, allowing it to rotate relative to the main boom 100 within a certain range. The first end of the second link 106 is hinged to the work platform 102, also allowing it to rotate relative to the work platform 102 within a certain range. The second end of the first link 104 is hinged to the second end of the second link 106, thus forming a four-bar linkage with the first link 104, the second link 106, the work platform 102, and the main boom 100. This design increases the stability and flexibility of the structure.

[0037] The first end of the actuator 108 is hinged to the main boom 100, and the second end is simultaneously hinged to the hinge point of the first link 104 and the second link 106. The actuator 108 is a telescopic mechanism that can switch between an extended state and a retracted state. In the retracted state, the length of the actuator 108 is shortened, and the working platform 102 is kept horizontal through the transmission action of the link assembly; in the extended state, the length of the actuator 108 is lengthened, which pushes the link assembly to deform, thereby causing the working platform 102 to rotate to the required angle.

[0038] Understandably, when the actuator 108 is in the retracted state, it reaches the extreme position of its lower stroke. At this point, the actuator 108 acts as a rigid connecting rod, and the work platform 102 remains stably horizontal under the support of the actuator 108. Even if internal leakage occurs, the work platform 102 will not shake due to the extension and retraction of the actuator 108. This achieves self-locking of the work platform 102, ensuring its stability. Whether applied to high-altitude operations, fire rescue, or during normal vehicle operation, the work platform 102 will not shake.

[0039] According to one embodiment of the present invention, the second end of the first connecting rod 104 is provided with one of the stop block 110 and the limiting block 112, and the second end of the second connecting rod 106 is provided with the other of the stop block 110 and the limiting block 112. In the retracted state, the stop block 110 and the limiting block 112 abut against each other.

[0040] In one embodiment of this invention, in the retracted state, the stop 110 of the first link 104 and the limiting block 112 of the second link 106, or the limiting block 112 of the first link 104 and the stop 110 of the second link 106, will abut against each other. This design ensures that when the actuator 108 is in the retracted state, the relative position between the first link 104 and the second link 106 is fixed, thereby further preventing the operation of the work platform 102.

[0041] In other words, through the cooperation of the stop block 110 and the limit block 112, the linkage assembly of this invention can achieve stable position locking when the actuating member 108 is in the retracted state. This design enables the working platform 102 to have higher stability and reliability when it needs to maintain a specific position or posture. Compared with traditional locking mechanisms, this invention achieves the same function through the simple design of the stop block 110 and the limit block 112, thereby simplifying the overall structure and reducing manufacturing costs and maintenance difficulty. Since the cooperation between the stop block 110 and the limit block 112 is mechanical, no additional power source or complex control system is required to achieve locking and unlocking. This makes the operation of the device simpler and faster.

[0042] According to one embodiment of the present invention, the lines connecting the hinge point of the first link 104 and the main boom 100, the hinge point of the first link 104 and the second link 106, the hinge point of the second link 106 and the working platform 102, and the hinge point of the actuator 108 and the main boom 100 form a quadrilateral structure.

[0043] In one embodiment of this invention, the key components and their connection points in the boom structure are designed to form a quadrilateral structure. Specifically, this quadrilateral structure is formed by the lines connecting the following four hinge points:

[0044] The hinge point between the first link 104 and the main boom 100: This is the point where one end of the first link 104 is connected to the main boom 100, allowing the first link 104 to rotate relative to the main boom 100.

[0045] The hinge point between the first link 104 and the second link 106: This is the point where the first link 104 and the second link 106 are connected, allowing the first link 104 and the second link 106 to rotate relative to each other, forming part of a four-bar linkage.

[0046] The hinge point between the second link 106 and the work platform 102: This is the point where the second link 106 connects to the work platform 102, allowing the second link 106 to rotate relative to the work platform 102.

[0047] Hinge point between actuator 108 and main boom 100: This is the point where actuator 108 connects to main boom 100. Actuator 108 can telescopically move relative to main boom 100 and drive work platform 102 to flip or horizontally position via linkage assembly.

[0048] The lines connecting these four hinge points together form a quadrilateral structure, which plays a crucial supporting and guiding role in the movement of the boom.

[0049] Understandably, the quadrilateral structure offers superior stability, capable of withstanding forces and torques from the work platform 102 and the linkage assembly, ensuring the stability and safety of the boom structure during operation. The quadrilateral structure allows the linkage assembly to smoothly rotate and extend under the drive of the actuator 108, thereby enabling the work platform 102 to tilt or horizontally position, achieving precise operational control. The quadrilateral design allows the boom structure to perform complex movements within a compact space, improving space utilization and making it more suitable for various confined space operating environments. The quadrilateral design simplifies the overall boom structure design, reduces manufacturing costs and maintenance difficulty, while simultaneously improving the reliability and durability of the device.

[0050] According to one embodiment of the present invention, in the retracted state, the hinge point between the first link 104 and the main boom 100 and the hinge point between the second link 106 and the working platform 102 are in the same plane, and the plane is parallel to the plane where the working platform 102 is located.

[0051] In one embodiment of this utility model, in the retracted state, the hinge point between the first link 104 and the main boom 100, and the hinge point between the second link 106 and the work platform 102, are located in the same plane. This plane is designed to be parallel to the plane containing the work platform 102.

[0052] In the retracted state, the hinge point between the first link 104 and the main boom 100 is located in the aforementioned plane, indicating that the connection between the first link 104 and the main boom 100 at this time is horizontal or nearly horizontal, reducing additional stress and wear caused by angle changes.

[0053] Similarly, in the retracted state, the hinge point between the second link 106 and the working platform 102 is also located in the same plane, ensuring that the hinge point between the second link 106 and the working platform 102, and the hinge point between the first link 104 and the main boom 100 are coplanar.

[0054] The fact that the aforementioned plane is parallel to the work platform 102 means that in the retracted state, the layout of the entire boom structure is more compact, which not only reduces the space occupied, but also helps to improve the stability and safety of the work platform 102.

[0055] Specifically, in the retracted state, the hinge point between the first link 104 and the main boom 100, and the hinge point between the second link 106 and the work platform 102, are located in the same plane, and this plane is parallel to the work platform 102. This means that in the quadrilateral structure mentioned above, the force at the hinge point between the first link 104 and the second link 106 in the vertical direction approaches zero. Therefore, the hinge point between the first link 104 and the second link 106 can reach a state that is infinitely close to a dead point, thereby achieving further self-locking of the work platform 102 through the force at the dead point. Furthermore, since the two hinge points mentioned above are in the same plane, and this plane is parallel to the work platform 102, a smoother movement trajectory can be maintained during the transition of the boom structure from the retracted state to the extended state, reducing vibration and impact caused by angle changes. The compact structure and smooth movement trajectory help reduce safety hazards caused by boom structure instability during operation, improving the safety of operators on the work platform 102.

[0056] According to one embodiment of the present invention, two ladders 114 are provided on the main boom 100 along the width direction, and the two ladders 114 extend along the length direction of the main boom 100.

[0057] In one embodiment of this utility model, the design of the main boom 100 is optimized to better meet operational needs and improve safety. Specifically, two ladders 114 are provided on the main boom 100 along its width direction (i.e., the width direction perpendicular to the length direction of the main boom 100). These two ladders 114 not only extend along the length direction of the main boom 100 (i.e., the main extension direction of the main boom 100), but are also parallel to each other, providing operators with convenient access and a working platform 102.

[0058] The ladder 114 is an important component mounted on the main boom 100, providing operators with access to the work platform 102 from the ground or a lower position. In this embodiment, the ladder 114 is designed to be arranged along the width direction of the main boom 100, meaning it is perpendicular to the length direction of the main boom 100, thereby ensuring that operators can move up and down safely and stably.

[0059] Equipping the main boom 100 with two ladders 114 not only improves the efficiency of personnel movement but also enhances safety. In emergencies, personnel can choose different ladders 114 for evacuation, avoiding the risks caused by a single blocked passage.

[0060] Therefore, by installing two ladders 114 on the main boom 100, operators are provided with more options and safer access. In emergencies, operators can quickly choose the other ladder 114 for evacuation, reducing the risk of accidents. The two ladders 114 allow operators to reach the work platform 102 or evacuate the site more quickly, improving work efficiency. The ladders 114 are positioned along the width of the main boom 100, allowing operators to maintain a relatively stable posture during vertical movement, reducing discomfort and safety hazards caused by angle changes. As an additional structure on the main boom 100, the design and layout of the ladders 114 also affect the overall structural stability. In this embodiment, the installation of the ladders 114 considers not only access needs but also structural stability and stress balance.

[0061] According to one embodiment of the present invention, the actuating element 108 includes:

[0062] Hydraulic cylinder 116 is hinged to the main boom 100;

[0063] A hydraulic rod 118 is telescopically inserted into a hydraulic cylinder 116. The extended end of the hydraulic rod 118 is hinged to the second end of the first connecting rod 104 and the second end of the second connecting rod 106. The hydraulic rod 118 is adapted to switch between an extended state and a retracted state.

[0064] In one embodiment of this utility model, the actuating element 108 mainly includes two parts: a hydraulic cylinder 116 and a hydraulic rod 118, which work together to realize the extension and retraction functions of the boom structure.

[0065] Hydraulic cylinder 116 is one of the core components of actuator 108, responsible for providing the necessary driving force to drive the extension and retraction of hydraulic rod 118. In this embodiment, hydraulic cylinder 116 is hinged to main boom 100, which means that hydraulic cylinder 116 can rotate relative to main boom 100 to accommodate angular changes in the boom structure during extension and retraction.

[0066] The hydraulic rod 118 is a slender rod-shaped component that is telescopically inserted inside the hydraulic cylinder 116. The extended end of the hydraulic rod 118 is designed to be simultaneously hinged to the second end of the first connecting rod 104 and the second end of the second connecting rod 106, thereby achieving synchronous drive of the two connecting rods. The hydraulic rod 118 can switch between an extended state and a retracted state. When the hydraulic rod 118 is extended, it pushes the first connecting rod 104 and the second connecting rod 106 to rotate and extend relative to the main boom 100. When the hydraulic rod 118 is retracted, it drives the two connecting rods to move in the opposite direction, that is, retract to the initial position.

[0067] Hydraulic cylinder 116, as the core component of actuator 108, provides sufficient driving force to drive the extension and retraction of hydraulic rod 118, thereby achieving reliable drive of the boom structure. The extended end of hydraulic rod 118 can be simultaneously hinged to the second end of first link 104 and second link 106, ensuring the synchronicity of these two links during extension and retraction, avoiding mechanical interference and safety hazards caused by asynchrony. Hydraulic cylinder 116 is hinged to the main boom 100, adapting to angular changes in the boom structure during extension and retraction, ensuring the stability and reliability of the entire boom structure. By controlling the oil inlet and outlet speeds of hydraulic cylinder 116, the extension and retraction speeds of hydraulic rod 118 can be precisely controlled, thereby achieving precise control of the boom structure's extension and retraction process. As relatively independent components, hydraulic cylinder 116 and hydraulic rod 118 are easy to maintain and replace, reducing maintenance and time costs.

[0068] In some other embodiments, the actuator 108 may also be an electric cylinder or the like.

[0069] According to one embodiment of the present invention, there are two first connecting rods 104 and two second connecting rods 106, and the two first connecting rods 104 and the two second connecting rods 106 are symmetrically arranged about the center line of the width direction of the main boom 100.

[0070] In one embodiment of this utility model, the first link 104 and the second link 106 are both designed as two, and the two first links 104 and the two second links 106 are symmetrically arranged with the center line in the width direction of the main boom 100 as the axis of symmetry.

[0071] In this embodiment, there are two first connecting rods 104, located on both sides of the main boom 100, and symmetrically arranged with the center line of the main boom 100 in the width direction as the axis of symmetry. This design not only enhances the stability and load-bearing capacity of the boom structure, but also enables the connecting rod assembly to maintain better balance during extension and retraction.

[0072] Similar to the first link 104, there are also two second links 106, which are symmetrically arranged with the center line in the width direction of the main boom 100 as the axis of symmetry. One end of the second link 106 is connected to the first link 104, and the other end is connected to the working platform 102, together providing support and drive for the working platform 102.

[0073] The two first links 104 and the two second links 106 are symmetrically arranged with the centerline in the width direction of the main boom 100 as the axis of symmetry. This design not only makes the boom structure more aesthetically pleasing and harmonious, but more importantly, it achieves better balance and stability in terms of mechanics. During extension and retraction, the two link assemblies can move synchronously, avoiding mechanical interference and safety hazards caused by asynchrony.

[0074] By increasing the number of first connecting rods 104 and second connecting rods 106, and symmetrically arranging them with the centerline of the main boom 100 in the width direction as the axis of symmetry, the stability and load-bearing capacity of the boom structure are significantly enhanced. The symmetrically arranged first connecting rods 104 and second connecting rods 106 maintain better balance during extension and retraction, avoiding mechanical stress and vibration caused by imbalance. The symmetrically arranged connecting rod assembly achieves better balance and distribution mechanically, improving the overall mechanical performance and service life of the boom structure. Due to the improved synchronization and stability of the connecting rod assembly, the extension and retraction of the boom structure can be achieved more quickly, thereby improving operational efficiency.

[0075] According to one embodiment of the present invention, the second ends of the two first connecting rods 104 and the second ends of the two second connecting rods 106 are hinged to the hinge shaft 120, and the extended end of the hydraulic rod 118 is hinged to the hinge shaft 120.

[0076] In one embodiment of the present invention, the second ends of the two first connecting rods 104 and the second ends of the two second connecting rods 106 are hinged together on a hinge shaft 120, and the extended end of the hydraulic rod 118 is also hinged to this hinge shaft 120.

[0077] The hinge shaft 120 is a key component connecting the first link 104, the second link 106, and the hydraulic rod 118. The hinge shaft 120 allows these components to rotate and move relative to each other at the hinge point, thereby enabling the extension and retraction functions of the boom structure.

[0078] The second ends of the two first links 104 and the second ends of the two second links 106 are all hinged to the hinge shaft 120. This connection method ensures that the first links 104 and the second links 106 can maintain synchronous and coordinated movement during extension and retraction, avoiding mechanical interference and safety hazards caused by asynchrony.

[0079] The extended end of the hydraulic rod 118 is also hinged to the hinge shaft 120. When the hydraulic rod 118 extends or retracts, it pushes or pulls the first link 104 and the second link 106 through the hinge shaft 120 to rotate and extend or retract. This connection method not only simplifies the overall design of the boom structure but also improves its movement efficiency and stability.

[0080] By using a hinge shaft 120 to connect the first link 104, the second link 106, and the hydraulic rod 118, the overall design of the boom structure is simplified, reducing manufacturing costs and maintenance difficulty. The connection between the first link 104 and the second link 106 via the hinge shaft 120 ensures their synchronization during extension and retraction, avoiding mechanical interference and safety hazards caused by asynchrony. As a connecting component, the hinge shaft 120 can withstand significant mechanical stress and vibration, thereby enhancing the overall stability and load-bearing capacity of the boom structure. The hydraulic rod 118 pushes or pulls the first link 104 and the second link 106 through the hinge shaft 120 to rotate and extend or retract, making the movement smoother and more efficient. Because the hinge shaft 120 allows components to rotate and move relative to each other at the hinge point, the boom structure can adapt to the needs of various complex operating environments.

[0081] According to one embodiment of the present invention, the extended end of the hydraulic rod 118 is hinged to the middle of the hinge shaft 120.

[0082] In one embodiment of this invention, the hinge shaft 120, as a key component connecting the first link 104, the second link 106, and the hydraulic rod 118, has its length and position crucial for the stability and movement efficiency of the boom structure. In this embodiment, the extended end of the hydraulic rod 118 is hinged to the middle of the hinge shaft 120. This means that when the hydraulic rod 118 extends or retracts, the driving force it generates can be evenly applied to the first link 104 and the second link 106, thereby achieving smoother and more coordinated movement.

[0083] Because the extended end of the hydraulic rod 118 is hinged to the middle of the hinge shaft 120, when the hydraulic rod 118 extends, it can push the first connecting rod 104 and the second connecting rod 106 to rotate and extend with equal torque. Similarly, when the hydraulic rod 118 retracts, it can also pull the two connecting rods in the opposite direction with equal torque. This uniform distribution of driving force not only improves the movement efficiency of the boom structure, but also reduces the mechanical stress and vibration caused by uneven driving force.

[0084] The extended end of the hydraulic rod 118 is hinged to the middle of the hinge shaft 120, allowing the driving force to be applied evenly to the first link 104 and the second link 106, thus achieving smoother and more coordinated movement. This connection method ensures that the hydraulic rod 118 can push or pull the first link 104 and the second link 106 with equal torque when extending or retracting, avoiding mechanical stress and vibration caused by uneven driving force. Because the driving force can be applied evenly to the two links, the entire boom structure can maintain better stability and load-bearing capacity during extension and retraction. Due to the smoother and more coordinated movement, the extension and retraction of the boom structure can be achieved more quickly, thereby improving operational efficiency.

[0085] A second aspect of this utility model provides a vehicle including the above-described boom structure.

[0086] A second aspect of this utility model provides a vehicle that includes the aforementioned boom structure. The boom structure includes key components such as a main boom 100, a first connecting rod 104, a second connecting rod 106, a hydraulic cylinder 116, and a hydraulic rod 118. These components are hinged together to achieve various movements of the boom structure, including extension, retraction, and rotation. In particular, the extended end of the hydraulic rod 118 is hinged to the middle of the hinge shaft 120, ensuring uniform distribution of driving force and smooth movement.

[0087] This type of vehicle, featuring an optimized boom structure, can be widely used in various situations requiring high-altitude operations or long-distance material handling. For example, it can serve as an important component of cranes, fire trucks, and rescue vehicles, providing strong support for various emergency rescues, construction projects, and cargo handling tasks.

[0088] Thanks to the optimized boom structure described above, the vehicle exhibits higher stability and operational efficiency during operation. Simultaneously, the rational structural design reduces maintenance costs and ease of use. The optimized boom structure enables the vehicle to more easily perform aerial work and long-distance material handling, thereby improving its operational capabilities and applicability. Through the special design of the linkage assembly and articulation method, the boom structure maintains better stability during extension and retraction, avoiding safety hazards caused by swaying or vibration. The extended end of the hydraulic rod 118 is hinged to the middle of the articulation shaft 120, ensuring even distribution of driving force and enabling the boom structure to maintain smooth and coordinated movement during extension and retraction. The rational structural design reduces wear and malfunctions caused by mechanical stress and vibration, thus lowering maintenance costs and ease of use. Because the boom structure design is more rational and efficient, extension, retraction, and rotation actions can be achieved more quickly, thereby improving the vehicle's operational efficiency.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A boom structure, characterized in that, include: Main boom (100); A linkage assembly is used to connect the work platform (102) and the main boom (100). The linkage assembly includes a first link (104) and a second link (106). The first end of the first link (104) is hinged to the main boom (100), the first end of the second link (106) is hinged to the work platform (102), and the second end of the first link (104) is hinged to the second end of the second link (106). An actuator (108) has its first end hinged to the main boom (100) and its second end hinged to the second end of the first link (104) and the second end of the second link (106). The actuator (108) is adapted to switch between an extended state and a retracted state. In the retracted state, the actuator (108) is adapted to drive the work platform (102) to switch to a horizontal state. In the extended state, the actuator (108) is adapted to drive the work platform (102) to switch to a tilting state.

2. The boom structure according to claim 1, characterized in that, The second end of the first link (104) is provided with one of a stop block (110) and a limiting block (112), and the second end of the second link (106) is provided with the other of the stop block (110) and the limiting block (112). In the retracted state, the stop block (110) and the limiting block (112) abut against each other.

3. The boom structure according to claim 1, characterized in that, The lines connecting the hinge point of the first link (104) and the main boom (100), the hinge point of the first link (104) and the second link (106), the hinge point of the second link (106) and the working platform (102), and the hinge point of the actuator (108) and the main boom (100) form a quadrilateral structure.

4. The boom structure according to claim 3, characterized in that, In the retracted state, the hinge point between the first link (104) and the main boom (100) and the hinge point between the second link (106) and the working platform (102) are in the same plane, which is parallel to the plane where the working platform (102) is located.

5. The boom structure according to any one of claims 1 to 4, characterized in that, Along the width direction of the main boom (100), two ladders (114) are provided on the main boom (100), and the two ladders (114) extend along the length direction of the main boom (100).

6. The boom structure according to any one of claims 1 to 4, characterized in that, The action (108) includes: Hydraulic cylinder (116), which is hinged to the main boom (100). A hydraulic rod (118) is telescopically inserted through the hydraulic cylinder (116). The extended end of the hydraulic rod (118) is hinged to the second end of the first connecting rod (104) and the second end of the second connecting rod (106). The hydraulic rod (118) is adapted to switch between the extended state and the retracted state.

7. The boom structure according to claim 6, characterized in that, There are two first connecting rods (104) and two second connecting rods (106), and the two first connecting rods (104) and the two second connecting rods (106) are symmetrically arranged about the center line of the width direction of the main boom (100).

8. The boom structure according to claim 7, characterized in that, The second ends of the two first links (104) and the second ends of the two second links (106) are hinged to the hinge shaft (120), and the extended end of the hydraulic rod (118) is hinged to the hinge shaft (120).

9. The boom structure according to claim 8, characterized in that, The extended end of the hydraulic rod (118) is hinged to the middle of the hinge shaft (120).

10. A vehicle, characterized in that, Includes the boom structure as described in any one of claims 1 to 9.

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