Aerial work platform

Abstract

The application relates to a high-altitude operation vehicle, which comprises a telescopic arm, an operation bucket and a leveling mechanism, the telescopic arm comprises a main arm, a secondary arm one, a secondary arm two and a secondary arm three, the top of the leveling mechanism is connected to the bottom center of the operation bucket, the bottom of the leveling mechanism is hinged to the end of the secondary arm three away from the main arm, the operation bucket is vertically slidably equipped with a lifting seat on the two sides of the side surface close to the telescopic arm, the outer side of the lifting seat is rotationally connected with a hinged seat, the outer end of the hinged seat is hingedly connected with an inclined support rod through a ball head, a fixed clamping seat is arranged at the position directly above the lifting seat, the end of the inclined support rod away from the hinged seat is detachably clamped on the fixed clamping seat, and one locking seat is fixed on the two sides of the end of the secondary arm two away from the main arm; the end of the inclined support rod away from the hinged seat is detachably clamped in the locking seat. The high-altitude operation vehicle is not easy to shake because two inclined support rods cooperate with the secondary arm two, the secondary arm one, the leveling mechanism and the operation bucket to form a triangular support structure.

Description

Technical Field

[0001] This application relates to the field of aerial work platform technology, and in particular to an aerial work platform vehicle. Background Technology

[0002] Aerial work platforms are special vehicles used for the installation, maintenance, and cleaning of high-altitude equipment. Compared with traditional methods such as scaffolding and ladders, they have advantages such as better performance, higher efficiency, and greater safety.

[0003] For example, Chinese patent application number CN202010664541.X discloses a catenary aerial work platform, including a powered flatbed and an aerial work platform. The aerial work platform includes a boom and a basket. The boom includes a base, a turntable, a main boom, a second boom section, a telescopic cylinder assembly, a telescopic boom, and a leveling mechanism. The base is fixedly mounted on the powered flatbed and the turntable is mounted on the base. One end of the main boom is mounted on the turntable. The end of the main boom away from the turntable is hinged to one end of the second boom section. The other end of the second boom section is hinged to one end of the telescopic boom section. The leveling mechanism is mounted on the end of the telescopic boom away from the telescopic boom section. The basket is mounted on the leveling mechanism to keep the basket level.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and require improvement:

[0005] In common aerial work platforms, the basket and telescopic boom are mainly connected by a leveling mechanism. This leveling mechanism is usually connected to the center of the bottom of the basket. Compared to the entire bottom surface of the basket, the force-bearing area between the leveling mechanism and the basket is very small. In actual high-altitude operations, if the worker's standing position is not close to the leveling mechanism, for example, if the worker's standing position is on the edge of the basket, the side on which the worker is standing will tilt downwards under the weight. As the worker moves inside the basket, the basket is prone to swaying at high altitudes, which can easily damage the leveling mechanism, which is the core load-bearing component, and also poses a significant safety hazard. Utility Model Content

[0006] This application provides an aerial work platform vehicle to improve the following technical problems:

[0007] In common aerial work platforms, the basket and telescopic boom are mainly connected by a leveling mechanism. If the worker's standing position is not close to the leveling mechanism, the side where the worker is standing will tilt downwards under the weight. As the worker moves inside the basket, the basket is prone to swaying at high altitudes, which can easily damage the leveling mechanism and pose a significant safety hazard.

[0008] This application provides an aerial work platform vehicle, which adopts the following technical solution:

[0009] An aerial work platform includes a telescopic boom, a work bucket, and a leveling mechanism. The telescopic boom includes a main boom, a first auxiliary boom, a second auxiliary boom, and a third auxiliary boom. The first auxiliary boom is telescopically connected to the main boom, the second auxiliary boom is telescopically connected to the first auxiliary boom, and the third auxiliary boom is telescopically connected to the second auxiliary boom. The top of the leveling mechanism is connected to the center of the bottom of the work bucket, and the bottom of the leveling mechanism is hinged to the end of the third auxiliary boom away from the main boom. A lifting seat is vertically slidably mounted on each side of the work bucket near the telescopic boom. A hinge seat is rotatably connected to the outer side of the lifting platform. The axis of rotation of the hinge seat is horizontally arranged. The outer end of the hinge seat is hinged to a diagonal brace via a ball joint. A fixed bracket is also provided at the position of the working bucket directly above the lifting platform. The end of the diagonal brace away from the hinge seat is detachably locked onto the fixed bracket. A locking seat is fixed on each side of the end of the secondary arm away from the main arm. The end of the diagonal brace away from the hinge seat is detachably locked into the locking seat. When the secondary arm retracts into the interior of the secondary arm, the locking seat is located outside the secondary arm.

[0010] In one feasible technical solution of this application, a ball is provided at the end of the diagonal brace away from the hinge seat, a notch is provided on the side of the locking seat near the working bucket, and a cylindrical hole is provided on the top surface of the locking seat for the ball to be fitted and engaged.

[0011] In one feasible technical solution of this application, a guide cone surface is provided at the top opening of the cylindrical hole, and the guide cone surface is used for the sphere to be aligned and slide in.

[0012] In one feasible technical solution of this application, the diagonal brace is a gas spring.

[0013] In one feasible technical solution of this application, the fixing bracket is an elastic rubber block, and the outer side of the fixing bracket is provided with a vertically arranged slot, and the telescopic rod of the gas spring is detachably engaged in the slot.

[0014] In one feasible technical solution of this application, the cylinder diameter of the gas spring is greater than 25 mm, the total length of the gas spring is not greater than the height of the work vehicle, and the total length of the gas spring is between 1.4 and 1.6 meters.

[0015] In one feasible technical solution of this application, a side baffle is provided at the bottom of the working bucket, and a vertically arranged sliding groove is provided on the side baffle. The inner end of the lifting seat is vertically slidably assembled in the sliding groove. Inner wing plates and outer wing plates are provided on both sides of the lifting seat. The side baffle is located between the inner wing plate and the outer wing plate. The inner wing plate is fixed to the side baffle by locking bolts.

[0016] In one feasible technical solution of this application, the hinge seat is further provided with a rotating shaft on both sides, the rotating shaft being horizontally arranged and movably passing through both sides of the lifting seat.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] When working at height and after the leveling mechanism has executed the leveling command, the worker can first unlock the vertical restriction of the lifting platform, extend their hand outside the work bucket, and unlock the diagonal brace from the fixed seat. Then, rotate the diagonal brace so that the outer end of the diagonal brace gradually approaches the locking seat until the outer end of the diagonal brace is locked into the locking seat. Then, fix the lifting platform. The two diagonal braces, together with the second auxiliary boom, the first auxiliary boom, the leveling mechanism, and the work bucket, form a triangular support structure, which significantly improves the structural stability of the work bucket, making the work bucket less prone to shaking, effectively preventing damage to the leveling mechanism, and reducing safety hazards. After use, the diagonal brace can be unlocked from the locking seat, rotated upwards, and then locked into the fixed seat for storage and fixation without affecting the subsequent leveling action of the leveling mechanism. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural schematic diagram of the aerial work platform vehicle in the supported state according to an embodiment of this application.

[0021] Figure 2 This is a structural schematic diagram of the aerial work platform vehicle in the retracted state according to an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the locking seat in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of the lifting seat and hinge seat in the embodiments of this application.

[0024] Figure 5 This is a schematic diagram of the fixed card holder in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Telescopic boom; 11. Main boom; 12. Secondary boom one; 13. Secondary boom two; 14. Secondary boom three;

[0027] 2. Working bucket; 21. Side baffle; 211. Slide chute;

[0028] 3. Leveling mechanism;

[0029] 4. Lifting seat; 41. Inner wing plate; 42. Outer wing plate; 43. Locking bolts;

[0030] 5. Hinge seat; 51. Rotating shaft;

[0031] 6. Ball head;

[0032] 7. Diagonal brace; 71. Sphere;

[0033] 8. Fixed card holder; 81. Card slot;

[0034] 9. Locking seat; 91. Notch groove; 92. Cylindrical hole; 93. Guide cone surface. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0040] This application discloses an aerial work platform vehicle. (Refer to...) Figure 1-5 The aerial work platform includes a telescopic boom 1, a work bucket 2, and a leveling mechanism 3. The telescopic boom 1 includes a main boom 11, a secondary boom 12, a secondary boom 2 13, and a secondary boom 3 14. The secondary boom 12 is telescopically connected to the main boom 11, the secondary boom 2 13 is telescopically connected to the secondary boom 12, and the secondary boom 3 14 is telescopically connected to the secondary boom 2 13. The top of the leveling mechanism 3 is connected to the bottom center of the work bucket 2, and the bottom of the leveling mechanism 3 is hinged to the end of the secondary boom 3 14 away from the main boom 11. The above structure is a common structure in conventional aerial work platforms, i.e., prior art, and will not be described in detail in the embodiments of this application.

[0041] The core inventive point of this application is as follows: A lifting seat 4 is vertically slidably mounted on both sides of the working bucket 2 near the telescopic arm 1. A hinge seat 5 is rotatably connected to the outer side of the lifting seat 4. The rotation axis of the hinge seat 5 is arranged horizontally. The outer end of the hinge seat 5 is hinged to a diagonal brace 7 through a ball head 6. A fixed bracket 8 is also provided on the working bucket 2 directly above the lifting seat 4. The end of the diagonal brace 7 away from the hinge seat 5 is detachably locked onto the fixed bracket 8. A locking seat 9 is fixed on each side of the end of the auxiliary arm 13 away from the main arm 11. The end of the diagonal brace 7 away from the hinge seat 5 is detachably locked into the locking seat 9. When the auxiliary arm 13 is retracted into the auxiliary arm 12, the locking seat 9 is located outside the auxiliary arm 12.

[0042] In this embodiment, to facilitate the connection between the diagonal brace 7 and the locking seat 9, a ball 71 is provided at the end of the diagonal brace 7 away from the hinge seat 5. A notch 91 is provided on the side of the locking seat 9 near the working bucket 2, and a cylindrical hole 92 is provided on the top surface of the locking seat 9 for the ball 71 to fit and engage. The locking seat 9 is made of metal and is welded and fixed to the side of the auxiliary arm 13.

[0043] Furthermore, in order to facilitate the alignment of the ball 71 and its sliding into the locking seat 9, a guide cone surface 93 is provided at the top opening of the cylindrical hole 92. The guide cone surface 93 is used to align and slide the ball 71.

[0044] In this embodiment, the diagonal brace 7 is a gas spring, wherein the cylinder diameter of the gas spring is greater than 25 mm, the total length of the gas spring is not greater than the height of the work vehicle, and the total length of the gas spring is between 1.4 and 1.6 meters. To facilitate the locking, storage, and unlocking of the diagonal brace 7, the fixing bracket 8 is an elastic rubber block. The outer side of the fixing bracket 8 is provided with vertically arranged slots 81, and the telescopic rod of the gas spring can be detachably locked into the slots 81. The fixing bracket 8 and the work bucket 2 body are locked together by multiple bolts.

[0045] The gas spring has certain extension and contraction characteristics and support effect. Therefore, when the gas spring is in the support state, it still has a small range of extension and contraction capacity, which is sufficient for the leveling mechanism 3 to complete the small range of angle adjustment. At this time, it is not necessary to frequently unlock the connection between the gas spring and the locking seat 9, making high-altitude operations more convenient.

[0046] In this embodiment, in order to ensure that the diagonal brace 7 can be smoothly inserted into the locking seat 9, the inner end of the diagonal brace 7 not only needs to be able to rotate 360 ​​degrees to a certain extent (achieved by the ball head 6 and the hinge seat 5), but also needs to be able to slide vertically relative to the working bucket 2 to a certain extent (achieved by the lifting seat 4). The bottom of the working bucket 2 is provided with a side baffle 21, and a vertically arranged slide groove 211 is provided on the side baffle 21. The inner end of the lifting seat 4 is vertically slidably assembled in the slide groove 211. Both sides of the lifting seat 4 are provided with an inner wing plate 41 and an outer wing plate 42. The side baffle 21 is located between the inner wing plate 41 and the outer wing plate 42. The inner wing plate 41 is fixed to the side baffle 21 by locking bolts 43. The hinge seat 5 is also provided with a rotating shaft 51 on both sides. The rotating shaft 51 is horizontally arranged and moves through both sides of the lifting seat 4.

[0047] The beneficial technical effects of the aerial work platform vehicle in this application are roughly as follows:

[0048] When working at height and after the leveling mechanism 3 has completed the leveling command, the worker can first unlock the vertical restriction of the lifting seat 4, extend their hand outside the work bucket 2, and unlock the diagonal brace 7 from the fixed bracket 8. Then, rotate the diagonal brace 7 so that the outer end of the diagonal brace 7 gradually approaches the locking seat 9 until the outer end of the diagonal brace 7 is locked into the locking seat 9. Then, fix the lifting seat 4. The two diagonal braces 7, together with the auxiliary boom 2 13, auxiliary boom 12, leveling mechanism 3, and work bucket 2, form a triangular support structure, which significantly improves the structural stability of the work bucket 2, making the work bucket 2 less prone to shaking, effectively preventing damage to the leveling mechanism 3, and reducing safety hazards. After use, the diagonal brace 7 can be unlocked from the locking seat 9, rotated upwards, and then locked into the fixed bracket 8 for storage and fixation without affecting the subsequent leveling action of the leveling mechanism 3.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An aerial work platform, comprising a telescopic boom (1), a work bucket (2), and a leveling mechanism (3), wherein the telescopic boom (1) comprises a main boom (11), a first auxiliary boom (12), a second auxiliary boom (13), and a third auxiliary boom (14), the first auxiliary boom (12) being telescopically connected to the main boom (11), the second auxiliary boom (13) being telescopically connected to the first auxiliary boom (12), and the third auxiliary boom (14) being telescopically connected to the second auxiliary boom (13), the top of the leveling mechanism (3) being connected to the center of the bottom of the work bucket (2), and the bottom of the leveling mechanism (3) being hinged to the end of the third auxiliary boom (14) away from the main boom (11), characterized in that, The working bucket (2) has a lifting seat (4) vertically slidably mounted on both sides of the telescopic arm (1). The outer side of the lifting seat (4) is rotatably connected to a hinge seat (5). The rotation axis of the hinge seat (5) is arranged horizontally. The outer end of the hinge seat (5) is hinged to a diagonal brace (7) through a ball head (6). The working bucket (2) is also provided with a fixed bracket (8) directly above the lifting seat (4). The end of the diagonal brace (7) away from the hinge seat (5) is detachably locked onto the fixed bracket (8). The two sides of the second auxiliary arm (13) away from the main arm (11) are each fixed with a locking seat (9). The end of the diagonal brace (7) away from the hinge seat (5) is detachably locked into the locking seat (9). When the second auxiliary arm (13) retracts into the inside of the first auxiliary arm (12), the locking seat (9) is located outside the first auxiliary arm (12).

2. The aerial work platform vehicle according to claim 1, characterized in that, The end of the diagonal brace (7) away from the hinge seat (5) is provided with a ball (71), the side of the locking seat (9) near the working bucket (2) is provided with a notch (91), and the top surface of the locking seat (9) is also provided with a cylindrical hole (92), which is used for the ball (71) to be fitted and snapped.

3. The aerial work platform vehicle according to claim 2, characterized in that, The top opening of the cylindrical hole (92) is provided with a guide cone surface (93), which is used for the sphere (71) to be aligned and slide in.

4. The aerial work platform vehicle according to claim 1, characterized in that, The diagonal brace (7) is a gas spring.

5. The aerial work platform vehicle according to claim 4, characterized in that, The fixed bracket (8) is an elastic rubber block. The outer side of the fixed bracket (8) is provided with a vertically arranged slot (81). The telescopic rod of the gas spring can be detachably engaged in the slot (81).

6. The aerial work platform vehicle according to claim 4, characterized in that, The cylinder diameter of the gas spring is greater than 25 mm, the total length of the gas spring is not greater than the height of the work vehicle, and the total length of the gas spring is between 1.4 and 1.6 meters.

7. The aerial work platform vehicle according to claim 1, characterized in that, The bottom of the working bucket (2) is provided with a side baffle (21), and the side baffle (21) is provided with a vertically arranged slide groove (211). The inner end of the lifting seat (4) is vertically slidably assembled in the slide groove (211). The lifting seat (4) is provided with an inner wing plate (41) and an outer wing plate (42) on both sides. The side baffle (21) is located between the inner wing plate (41) and the outer wing plate (42). The inner wing plate (41) is fixed to the side baffle (21) by a locking bolt (43).

8. The aerial work platform vehicle according to claim 7, characterized in that, The hinge seat (5) is also provided with a rotating shaft (51) on both sides. The rotating shaft (51) is arranged horizontally and moves through both sides of the lifting seat (4).

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