Aerial work platform boom support device

Abstract

The utility model relates to engineering machinery technical field discloses a kind of aerial work platform arm support device, including support bracket and arm support seat. Support bracket is composed of trapezoidal frame type outrigger and rectangular frame type bracket body, reinforcing rod is equipped in outrigger, and bottom end is bolted with vehicle body through connecting plate. Bracket body top end is equipped with inverted trapezoidal bending support plate, rubber pad portion is equipped in its inside bending place, for buffering, supporting and limiting. Arm support seat is inverted U type, is embedded in bending support plate, top end is equipped with lug plate connection arm support, two sides lower part are equipped with lug slot, and cooperate locking with locking part on bracket body. Device is also equipped with illuminating lamp, provides operating area illumination. The device structure is stable, can effectively disperse load, reduce wear and noise, improve versatility and interchangeability, facilitate maintenance, ensure the safety and stability when arm support is retracted.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a boom support device for aerial work platforms. Background Technology

[0002] Aerial work platforms, as specialized equipment widely used in construction, power maintenance, and telecommunications installation, rely heavily on their boom support system to ensure safety and stability. During operation, the boom in its retracted state requires a reliable support structure to prevent accidental movement or damage due to external forces during transport or parking.

[0003] Most existing aerial work platform boom support devices use simple rod-type bracket structures that directly support the boom. While these can meet basic support requirements to some extent, the structural strength of traditional support devices is limited and cannot effectively resist bending, torsion, and shear forces generated by the boom under complex stress environments, which can easily lead to deformation or even damage to the support structure. Secondly, existing support devices lack effective buffering and limiting functions. During vehicle operation, the boom may experience rigid collisions with the support structure due to bumps, resulting in significant noise and wear, and posing safety hazards.

[0004] Therefore, a boom support device for aerial work platforms is proposed to address the current shortcomings. Utility Model Content

[0005] In order to solve the problems of the prior art, this utility model provides a boom support device for aerial work vehicles.

[0006] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a boom support device for aerial work vehicles.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a boom support device for aerial work platforms: A boom support device for aerial work platforms, characterized in that it includes a support bracket and a boom seat; The support bracket includes a leg frame and a bracket body. The leg frame is a trapezoidal frame structure with an open bottom, and its bottom end is connected to the vehicle body. The bracket body is a rectangular frame structure and its bottom end is fixedly connected to the top end of the leg frame. The top end of the bracket body is provided with a bent plate, which is an inverted trapezoidal structure with an open top. The boom seat has an inverted U-shaped structure and its open end cooperates with the bending support plate. The top two sides of the boom seat are symmetrically provided with ear plates for fixing and connecting the boom. The lower parts of both sides of the boom seat are symmetrically provided with hanging ear grooves. The bracket body is provided with locking parts that cooperate with the hanging ear grooves to achieve locking.

[0008] As an improvement, the bottom end of the outrigger frame is provided with a connecting plate, and the middle of the inner side of the outrigger frame is provided with a reinforcing rod.

[0009] As an improvement, pads are provided at both ends of the bending plate on the inner side.

[0010] As an improvement, the pad portion includes two pads arranged in a V-shape at the bending point of the bending support plate.

[0011] As an improvement, the bottom end of the inverted U-shaped structure of the boom seat is matched with the bent part of the bending support plate and the pad plate part.

[0012] As an improvement, the ear loop is inverted U-shaped.

[0013] As an improvement, the width of the bracket body is adapted to the width of the top of the support leg frame.

[0014] As an improvement, lighting is also included, which is symmetrically arranged on both sides of the bottom of the bracket body, and its illumination direction is tilted towards the boom or the vehicle platform.

[0015] As an improvement, the locking element is a strap tensioner.

[0016] The advantages of this utility model compared with the prior art are as follows: The support bracket adopts a combination structure of a vertically integrated rectangular frame and an inverted trapezoidal bent support plate. The compact layout reduces the overall space occupied by the device, while ensuring stable support when the boom is retracted. The modular design makes it easier to adapt to different models of aerial work platforms, reducing modification costs and improving versatility.

[0017] The support bracket adopts a trapezoidal frame-type outrigger with an open bottom, combined with an internal reinforcing rod to form a truss support structure, which effectively improves the overall bending, torsional and shear stiffness. It can evenly distribute the boom load to the vehicle body connection point and avoid deformation or failure caused by local stress concentration. The welded channel steel frame structure further enhances the load-bearing capacity of the outrigger and bracket body, and can adapt to the stable support requirements under large loads and complex stress environments.

[0018] The inverted trapezoidal bent support plate at the top of the bracket body naturally guides the boom seat to fall through the inclined sides on both sides, providing lateral limit and ensuring precise positioning of the boom seat; the V-shaped rubber pad at the bend utilizes the elastic deformation characteristics of rubber to absorb dynamic impact loads when the boom is placed or when driving on bumps, reducing metal collision noise and wear. At the same time, the compressed pad continuously provides elastic support force, evenly bearing the weight of the boom, and the V-shaped side wall helps resist the slight lateral displacement of the boom seat, taking into account both buffering and limiting functions.

[0019] The strap tensioners on the bracket body cooperate with the lugs on both sides of the boom seat to form a rigid locking structure, which can effectively prevent the boom seat from loosening, jumping off or shifting due to vibration or inertial force during vehicle operation, and significantly improve the safety and stability of the support device in the retracted state.

[0020] The symmetrical lighting fixtures on both sides of the bottom of the bracket can cover the boom's working area with their angled illumination, improving visibility at night or in low-light environments, assisting operators in precise operation, and further enhancing operational safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the unfolded structure of a boom support device for an aerial work vehicle according to this utility model.

[0022] Figure 2 This is a structural schematic diagram of a boom support device for an aerial work vehicle according to this utility model.

[0023] Figure 3 This is a front view of a boom support device for an aerial work vehicle according to this utility model.

[0024] Figure 4 This is a schematic diagram of the support bracket in the boom support device of an aerial work vehicle according to this utility model.

[0025] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle.

[0026] Figure 6 This is a schematic diagram of the boom support structure in a boom support device for an aerial work vehicle according to this utility model.

[0027] Figure 7 This is a front view of the boom support in a boom support device for an aerial work vehicle according to this utility model.

[0028] Figure 8 This is a schematic diagram of the usage state of a boom support device for an aerial work vehicle according to this utility model.

[0029] Figure 9 yes Figure 8 A magnified view of a portion of point A in the middle.

[0030] As shown in the figure: 1. Support bracket; 101. Support leg; 102. Bracket body; 2. Boom base; 3. Bending support plate; 4. Ear plate; 5. Hanging ear groove; 6. Locking device; 7. Connecting plate; 8. Reinforcing bar; 9. Pad section; 901. Pad; 10. Lighting; 11. Boom. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the utility model embodiments clearer, the technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The components of the utility model embodiments described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0032] In the description of the embodiments of the utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the utility model embodiments, "a plurality of" means at least two.

[0035] In the description of the embodiments of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0036] As shown in the accompanying drawings, an aerial work platform boom support device is used to support the boom in the retracted state. The support device includes a support bracket 1 and a boom seat 2. The support bracket 1 includes a leg frame 101 and a bracket body 102. The leg frame 101 is a trapezoidal frame structure with an open bottom and is fixedly connected to the vehicle body, providing good lateral stability and torsional stiffness. At the same time, the trapezoidal structure is conducive to effectively distributing and transferring the boom load to the vehicle body connection point.

[0037] A reinforcing rod 8 is provided in the middle of the inner side of the outrigger 101, which connects the two sides of the outrigger 101 to form a truss support structure. This disperses the top load to both sides, reduces the bending deformation of the sides, and significantly enhances the overall structural strength and bending resistance of the outrigger 101, while enabling it to withstand larger loads.

[0038] The bottom of the outrigger 101 is provided with a connecting plate 7 that is connected to the vehicle body. The connecting plate 7 is rectangular and is fixedly connected to the vehicle body by bolts to ensure a firm connection between the device and the vehicle body, forming a stable support structure.

[0039] The bracket body 102 has a rectangular frame structure and its width is adapted to the top width of the support leg 101, so that the bracket body 102 can be stably installed on the support leg 101 to form a continuous support frame, while reducing the upper space of the support bracket 1.

[0040] The bottom end of the bracket body 102 is fixedly connected to the top end of the support leg frame 101, and the bottom end of the bracket body 102 is connected to the support leg frame 101 by welding.

[0041] In this embodiment, both the outrigger 101 and the bracket body 102 are welded from channel steel. Channel steel has high strength and good rigidity characteristics, ensuring that the outrigger 101 and the bracket body 102 have sufficient structural strength and can effectively resist the bending, torsion and shear forces generated by the outrigger 101 under large loads and complex stress environments, thus ensuring the stability of the structure.

[0042] In practical implementation, the two arms of the bracket body 102 can adopt a telescopic arm structure, and the telescopic arms are fixed together by limit bolts to realize the height adjustment of the bracket body 102, thereby meeting the support of the support device for booms of different heights, thus improving the applicability of the support device.

[0043] The top of the bracket body 102 is provided with a bent support plate 3. The bent support plate 3 is an inverted trapezoidal structure with an open top. The bent support plate 3 is made of steel plate bent into shape, and its bottom edge is welded to the top of the bracket body 102 to form an inverted trapezoid with an open top and a wider top and a narrower bottom, so that the boom seat 2 can be easily placed on the bracket body 102.

[0044] During use, the horizontal surface inside the bracket body 102 forms a supporting surface, directly bearing the weight of the boom seat 2 and its connections. The load is transferred downwards to the frame of the bracket body 102 through the bent support plate 3. At the same time, the inclined sides of the bent support plate 3 form blocks, providing a placement position and lateral limit for the boom seat 2, ensuring that the boom seat 2 is stably supported on the bracket body 102.

[0045] The bending pallet 3 has pads 9 at both ends of the inner side of the bending pallet 3. The pads 9 include two pads 901 arranged in a V-shape at the bending point of the bending pallet 3. The pads 901 are fixed to the inner side of the bending pallet 3 by bolts. The pads 901 are made of rubber.

[0046] During use, when the boom seat 2 comes into contact with the bending pallet 3, the pad 901 absorbs the dynamic impact load through compression deformation, reducing the noise and wear of rigid collisions between metal parts.

[0047] In addition, the V-shaped structure of the pad 901 allows the pad portion 9 to resist lateral displacement of the boom seat 2 while bearing load in the vertical direction, providing elastic restraint.

[0048] The boom seat 2 has an inverted U-shaped structure and its open end cooperates with the bending support plate 3. The open end of the boom seat 2 is embedded in the bending support plate 3. The bottom end of the inverted U-shaped structure of the boom seat 2 cooperates with the bending part of the bending support plate 3 and the pad plate part 9, so that the boom seat 2 can be stably placed on the bending support plate 3 on the bracket body 102. Furthermore, the cooperation with the pad plate part 9 further enhances the stability of the connection and the cushioning performance.

[0049] Meanwhile, during implementation, the U-shaped structure of the boom base 2 can provide space for boom attachments to pass through, avoiding structural interference between the boom base 2 and its attachments.

[0050] The top two sides of the boom base 2 are symmetrically provided with ear plates 4 for fixing and connecting the boom, so as to ensure the stability of the connection between the boom base 2 and the boom.

[0051] The lower part of both sides of the boom base 2 is symmetrically provided with ear grooves 5, which are in the shape of an inverted U.

[0052] The bracket body 102 is provided with a locking element 6 that cooperates with the ear groove 5 to achieve locking. The locking element 6 is a strap tensioner. It cooperates with the ear groove to firmly lock the boom seat 2 on the bracket body 102, preventing the boom seat 2 from loosening or shifting during driving, and ensuring the safety and stability of the boom.

[0053] In addition, the separate assembly of the boom seat 2 and the support bracket 1 allows them to be manufactured as independent modules, making it convenient to flexibly select or replace the boom seat 2 and the support bracket 1 according to the needs of different boom models or different application scenarios, thus improving the equipment's versatility and interchangeability.

[0054] Meanwhile, the cooperation between the boom seat 2 and the support bracket 1 avoids rigid collisions between the boom and the support bracket, reduces wear and noise, and thus extends the service life of the equipment.

[0055] Furthermore, when maintenance, repair, or replacement of the boom mount 2 or support bracket 1 is required, they can be disassembled separately for repair or replacement without the need to dismantle the entire support device, significantly reducing maintenance and time costs. It also includes lighting lamps 10, which are symmetrically arranged on both sides of the bottom of the bracket body 102 and their illumination direction is tilted towards the boom, which can provide good lighting for the boom working area, improve the visibility and safety of the operation, especially at night or in low light environment, and can effectively assist the operator in operation.

[0056] Similarly, during implementation and use, the lighting lamps can be adjusted according to actual usage needs. The lighting lamp 10 on one side of the bracket body 102 can be tilted upward toward the boom, while the lighting lamp 10 on the other side can be tilted downward toward the vehicle platform.

[0057] In specific implementation of this utility model: 1) Boom placement and initial positioning: When the boom of the aerial work platform needs to be retracted for storage or transport, the operator places the boom in the support position.

[0058] As the boom descends, the open end of the boom seat 2 aligns with and embeds into the bent support plate 3 on top of the support bracket 1.

[0059] The inclined sides of the bending support plate 3 naturally guide the boom seat 2 to fall and form a lateral limit on it, preventing the boom seat 2 from moving left and right in the horizontal plane.

[0060] 2) Cushioning and elastic support: When the bottom end of the U-shaped opening of the boom seat 2 contacts the bend inside the bending support plate 3, it first presses against the pad plate 9 installed at the bend.

[0061] The pad section 9 consists of two rubber pads 901 arranged in a V-shape. The elastic properties of the rubber material cause it to compress and deform under the pressure of the boom seat 2, thus serving to: Buffering and shock absorption: Absorbs dynamic impact loads generated by the moment the boom is placed or by the vehicle during travel, and avoids rigid collisions and noise between the boom seat 2 and the bending support plate 3.

[0062] Reduced wear: The rubber pad acts as a soft interface, effectively reducing wear on the contact surface between the boom seat 2 and the bending support plate 3.

[0063] Elastic support: Under static conditions, the compressed rubber pads continuously provide upward elastic support, evenly bearing the weight of the boom.

[0064] Auxiliary limiting: The V-shaped structure arrangement allows the pad plate 9 to not only bear weight in the vertical direction, but its side wall can also provide a certain elastic constraint to help resist the small lateral displacement that may occur in the boom seat 2 and enhance stability.

[0065] 3) Load bearing and load transfer: The total weight of the boom and boom mount 2 is transferred through the following path: The boom is transferred to the ear plate 4, then to the boom seat 2, then to the pad 9 (rubber pad 901), and finally to the bending support plate 3.

[0066] The bending plate 3 transfers the load downwards to the bracket body 102 welded to it, and the bracket body 102 continues to transfer the load downwards to the top of the support leg 101 fixedly connected to it. The support leg 101 utilizes its trapezoidal frame structure and internal reinforcing rods 8 to effectively distribute and transfer the concentrated load borne at the top to its two inclined sides.

[0067] Finally, the load is stably transferred to the vehicle body structure via bolted connection through the connecting plate 7 at the bottom of the outrigger 101.

[0068] in: The horizontal plane inside the bracket body 102 forms the main support surface, directly supporting the boom seat 2.

[0069] The design of the trapezoidal support leg 101 and the reinforcing rod 8 greatly enhances the overall stiffness (bending resistance, torsion resistance, and shear resistance) and lateral stability of the structure, preventing excessive deformation or instability under load.

[0070] The welded structure of the channel steel ensures that the support leg 101 and the bracket body 102 have sufficient strength to bear large loads.

[0071] 4) Rigid locking and anti-displacement: After the boom mount 2 is placed in place and initially limited by the bending support plate 3, it needs to be rigidly locked to cope with the vibration and inertial force during vehicle movement.

[0072] The operator operates the locking element 6, which is installed on the bracket body 102. The locking element 6 cooperates with the hanging ear grooves 5 symmetrically arranged on both sides of the lower part of the boom seat 2.

[0073] By operating the strap tensioner, the locking element 6 generates tension or restraint force, which firmly pulls the boom seat 2 downward and locks it onto the bracket body 102.

[0074] Function: To completely prevent the boom mount 2 from jumping upward, sliding laterally, or moving longitudinally during transportation, ensuring the absolute stability and safety of the support.

[0075] 5) Auxiliary functions - lighting: The lighting lamps 10 installed on both sides of the bottom of the bracket body 102 illuminate the boom area at an angle upwards.

[0076] Function: It can provide good lighting for the boom working area, improve the visibility and safety of the operation, especially at night or in low light conditions, and can effectively assist the operator in operation.

[0077] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A boom support device for an aerial work platform, characterized in that: Includes support bracket (1) and boom seat (2); The support bracket (1) includes a leg frame (101) and a bracket body (102). The leg frame (101) is a trapezoidal frame structure with an open bottom and its bottom end is connected to the vehicle body. The bracket body (102) is a rectangular frame structure and its bottom end is fixedly connected to the top end of the leg frame (101). The top end of the bracket body (102) is provided with a bent plate (3). The bent plate (3) is an inverted trapezoidal structure with an open top. The boom seat (2) has an inverted U-shaped structure and its open end is engaged with the bent support plate (3). The top of the boom seat (2) is symmetrically provided with ear plates (4) for fixing and connecting the boom. The lower part of the two sides of the boom seat (2) is symmetrically provided with hanging ear grooves (5). The bracket body (102) is provided with locking parts (6) that cooperate with the hanging ear grooves (5) to achieve locking.

2. The boom support device for an aerial work platform according to claim 1, characterized in that: The bottom end of the support leg (101) is provided with a connecting plate (7), and the middle of the inner side of the support leg (101) is provided with a reinforcing rod (8).

3. The boom support device for an aerial work platform according to claim 1, characterized in that: The bending support plate (3) has pads (9) at both ends of the inner side bending point.

4. The boom support device for an aerial work platform according to claim 3, characterized in that: The pad portion (9) includes two pads (901) arranged in a V-shape at the bend of the bending support plate (3).

5. A boom support device for an aerial work platform according to claim 3 or 4, characterized in that: The bottom end of the inverted U-shaped structure of the boom seat (2) is matched with the bent part of the bending support plate (3) and the pad plate part (9).

6. The boom support device for an aerial work platform according to claim 1, characterized in that: The ear-hanging groove (5) is inverted U-shaped.

7. The boom support device for an aerial work platform according to claim 1, characterized in that: The width of the bracket body (102) is adapted to the width of the top of the support leg (101).

8. The boom support device for an aerial work platform according to claim 1, characterized in that: It also includes lighting lamps (10), which are symmetrically arranged on both sides of the bottom of the bracket body (102), and their illumination direction is tilted towards the boom or vehicle platform.

9. The boom support device for an aerial work platform according to claim 1, characterized in that: The locking component (6) is a strap tensioner.

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