Arm support device for overhead working truck

Abstract

The utility model discloses a boom device for an overhead working truck, which belongs to the technical field of overhead working trucks and comprises a truck body, a mounting seat fixedly connected to the top end of the truck body, and clamping plates symmetrically and fixedly connected to the top end of the mounting seat. A first protective cover can be arranged on the surface of a first arm support in a sleeving mode from a first opening seam, a hydraulic rod penetrates through a second opening seam to be clamped in a round hole, a fourth opening seam penetrates through a support, and then a second protective cover and a third protective cover are arranged on the surface of an electric telescopic arm support in a sleeving mode from a third opening seam. At the moment, the second protective cover and the third protective cover are closed through a first zipper, then the first protective cover and the second protective cover are closed through a second zipper, at the moment, the first binding belts are bound to the corresponding connecting blocks, then the second binding belts on the side edges of the protective covers are bound to one another, and at the moment, wrapping protection on the cantilever crane of the overhead working truck is completed; and meanwhile, disassembly and cleaning are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work vehicles, and more specifically to an arm device for an aerial work vehicle. Background Art

[0002] Aerial work platforms are mobile products used for aerial work, equipment installation, maintenance, and other high-altitude operations across various industries. Aerial work platform products primarily fall into seven categories: scissor-type aerial work platforms, trailer-type aerial work platforms, articulated boom aerial work platforms, straight boom aerial work platforms, aluminum alloy aerial work platforms, cylinder-type aerial work platforms, and spider-type aerial work platforms. Aerial work platforms generally consist of a chassis, a turntable, and a boom. The turntable is mounted on the chassis, and the boom is articulated to the turntable.

[0003] The specification of Chinese patent CN211619876U discloses an arm device of an insulated aerial work vehicle, including a lower arm part provided with an upper basic section arm and an upper telescopic arm, an upper arm part provided with a basic section arm and a basic telescopic arm, and an arm state monitoring device, which can realize the independent extension and retraction of the upper arm part and the lower arm part, and can monitor the arm state in real time, thereby achieving a higher working height under the same vehicle length. By real-time monitoring of the arm state, it can prevent the insulated working platform from moving to a dangerous working area and causing the whole vehicle to overturn, thereby ensuring the stability of the whole vehicle operation, and at the same time preventing the arm part from self-damaging collision due to misoperation, thereby reducing the safety hazards of the work vehicle.

[0004] The working environment of aerial work vehicles is harsh. Usually, during operations such as painting, decoration, plastering, and sandblasting, the work rails and booms are seriously polluted. As a result, after each operation, a lot of manpower and material resources are required to remove the paint, cement, and putty on the surface of the work rails and booms, and then re-spray the paint, which wastes time and also has an adverse effect on the surface quality of the product and the performance of the boom. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present utility model is to provide an aerial work vehicle arm device, which can realize an adjustable design through a clamping plate, and can place compressed air cylinders of different sizes, thereby avoiding collision and corrosion of the compressed air cylinders through a protective cover.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A boom device for an aerial work vehicle includes a body, a mounting seat fixedly connected to the top of the body, a clamping plate symmetrically fixedly connected to the top of the mounting seat, a first boom with a bracket at the bottom rotatably connected between the two clamping plates via a rotating shaft, an end of the first boom away from the mounting seat is rotatably connected to an electric telescopic boom, a hydraulic rod is installed between the electric telescopic boom and the first boom, an end of the electric telescopic boom away from the first boom is rotatably connected to a second boom, a side wall of the second boom is fixedly connected to a protective frame, a surface of the first boom is covered with a first protective cover, a first slit is provided on the side of the first protective cover, a second slit connected to a circular hole is provided on the top wall of the first protective cover, a fourth slit corresponding to the bracket is provided on the bottom wall of the first protective cover, and a surface of the fixed end of the electric telescopic boom is covered with a A second protective cover is provided, and a group of second zippers are installed at one end of the second protective cover and the first protective cover close to each other, and the first protective cover and the second protective cover are closed by the second zipper. A third protective cover is provided on the surface of the movable end of the electric telescopic arm, and a group of first zippers are installed at one end of the third protective cover and the second protective cover close to each other, and the second protective cover and the third protective cover are closed by the first zipper. The cross-section of the third protective cover away from the second protective cover and the cross-section of the first protective cover away from the second protective cover are symmetrically fixedly connected with a group of first straps, the side walls of the second protective cover and the third protective cover are both provided with a third slit, and the side wall of the mounting seat and the side wall of the electric telescopic arm close to the second arm are symmetrically fixedly connected with connecting blocks, and the first strap is bound to the connecting block.

[0010] Furthermore, a groove is carved on the bottom of the second arm frame away from the top, and a support plate is rotatably connected to the side wall of the second arm frame.

[0011] Furthermore, the support plate is provided with through holes corresponding to the grooves, and parasols are inserted into the through holes and the grooves.

[0012] Furthermore, a bayonet is provided at one end of the support plate close to the second arm, a clamping block is fixedly connected to one end of the second arm close to the support plate, and the clamping block and the bayonet are rotationally connected via a damping shaft.

[0013] Furthermore, the third protective cover is a multi-pleated folding design, and the first protective cover and the second protective cover are both large-pleated micro-folding designs.

[0014] Furthermore, the first protective cover, the second protective cover and the third protective cover are all made of Oxford cloth.

[0015] Furthermore, the first protective cover, the second protective cover and the third protective cover are respectively located on both sides of the first slit and the third slit and are symmetrically fixedly connected with multiple groups of second straps.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution is implemented by putting the first protective cover on the surface of the first arm from the first slit on the side, and passing the hydraulic rod through the second slit to clamp the hydraulic rod in the round hole, and passing the fourth slit through the bracket, and then putting the second protective cover and the third protective cover on the surface of the electric telescopic arm from the third slit on the side respectively. At this time, the second protective cover and the third protective cover can be connected and closed by the first zipper, and then the first protective cover and the second protective cover can be connected and closed by the second zipper. At this time, the first straps on the first protective cover and the third protective cover are respectively bound to the corresponding connecting blocks to fix the first protective cover and the third protective cover, and then the first protective cover and the second protective cover are connected and closed. The second straps on the side of the cover and the third protective cover are bound to each other, closing the first slit and the third slit. At this time, the arm of the aerial work vehicle is wrapped and protected, and it is also convenient to disassemble and clean. Since the third protective cover is mounted on the movable end of the electric telescopic arm, when the electric telescopic arm is telescoped, the third protective cover is a multi-pleated folding design, which can be retracted and adjusted as the electric telescopic arm is telescoped. Through the above, when the aerial work vehicle is operating, the first protective cover, the second protective cover and the third protective cover can effectively protect the entire arm, avoiding the problem of paint, cement, putty, etc. dripping on the surface and being difficult to clean.

[0019] (2) This solution enables the support plate to be flipped over by the damping shaft when working with an aerial work vehicle in hot or rainy weather so that the perforations correspond to the grooves. The handle of the parasol can then be inserted through the perforations into the grooves to engage with the parasol, thereby positioning the parasol so that it can provide shade or rain protection for workers in hot or rainy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axle-measured schematic diagram of the aerial work vehicle of the present invention;

[0021] Figure 2 This is a schematic diagram of the protective cover structure installed on the aerial work vehicle of the utility model;

[0022] Figure 3 This is a schematic diagram of the partial structure of the mounting seat and protective cover of the utility model;

[0023] Figure 4 This is a schematic diagram of the protective cover structure of the present utility model;

[0024] Figure 5 For the utility model Figure 4 A in the middle is an enlarged schematic diagram;

[0025] Figure 6 This is a schematic diagram of the sunshade installation structure of the utility model.

[0026] Description of the numbers in the figure:

[0027] 1. Vehicle body; 2. Mounting base; 3. First arm; 4. Hydraulic rod; 5. Electric telescopic arm; 6. Second arm; 7. Protective frame; 8. Sunshade; 9. First protective cover; 10. Bracket; 11. Second protective cover; 12. Third protective cover; 13. Connecting block; 14. First strap; 15. First slit; 16. Round hole; 17. Second slit; 18. First zipper; 19. Support plate; 20. Block; 21. Groove; 22. Damping shaft; 23. Third slit; 24. Perforation; 25. Second strap. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0031] See also Figure 1-5A boom device for an aerial work vehicle includes a body 1, a mounting base 2 is fixedly connected to the top of the body 1, a card is symmetrically fixedly connected to the top of the mounting base 2, and a first boom 3 with a bracket 10 at the bottom is rotatably connected between the two card plates through a rotating shaft, and the first boom 3 is rotatably connected to the end of the first boom 3 away from the mounting base 2, a hydraulic rod 4 is installed between the electric telescopic boom 5 and the first boom 3, and the end of the electric telescopic boom 5 away from the first boom 3 is rotatably connected to the second boom 6, and a protective frame 7 is fixedly connected to the side wall of the second boom 6, a first protective cover 9 is provided on the surface of the first boom 3, a first slit 15 is provided on the side of the first protective cover 9, a second slit 17 connected to the circular hole 16 is provided on the top wall of the first protective cover 9, a fourth slit corresponding to the bracket 10 is provided on the bottom wall of the first protective cover 9, and a second protective cover is provided on the fixed end surface of the electric telescopic boom 5 11. A group of second zippers are installed at one end of the second protective cover 11 and the first protective cover 9 close to each other, and the first protective cover 9 and the second protective cover 11 are closed by the second zipper. A third protective cover 12 is provided on the surface of the movable end of the electric telescopic arm 5. A group of first zippers 18 are installed at one end of the third protective cover 12 and the second protective cover 11 close to each other, and the second protective cover 11 and the third protective cover 12 are closed by the first zipper 18. The cross-section of the end of the third protective cover 12 away from the second protective cover 11 and the end of the first protective cover 9 away from the second protective cover 11 are symmetrically fixedly connected with a group of first straps 14. The side walls of the second protective cover 11 and the third protective cover 12 are both provided with a third slit 23. The side wall of the mounting seat 2 and the side wall of the electric telescopic arm 5 close to the second arm 6 are both symmetrically fixedly connected with a connecting block 13, and the first strap 14 is bound to the connecting block 13.

[0032] See also Figure 4 The third protective cover 12 is a folding design with multiple pleats, and the first protective cover 9 and the second protective cover 11 are both micro-folding designs with large pleats. The first protective cover 9, the second protective cover 11, and the third protective cover 12 are all made of Oxford cloth. The first protective cover 9, the second protective cover 11, and the third protective cover 12 are respectively located on both sides of the first slit 15 and the third slit 23 and are symmetrically fixedly connected with multiple sets of second straps 25.

[0033] Put the first protective cover 9 on the surface of the first arm 3 from the first slit 15 on the side, and pass the second slit 17 through the hydraulic rod 4 to clamp the hydraulic rod 4 in the round hole 16, and pass the fourth slit through the bracket 10, and then put the second protective cover 11 and the third protective cover 12 on the surface of the electric telescopic arm 5 from the third slit 23 on the side. At this time, the second protective cover 11 and the third protective cover 12 can be connected and closed by the first zipper 18, and then the first protective cover 9 and the second protective cover 11 are connected and closed by the second zipper. At this time, the first straps 14 on the first protective cover 9 and the third protective cover 12 are respectively bound to the corresponding connecting blocks 13, so as to fix the first protective cover 9 and the third protective cover 12, and then the first protective cover 9, The second straps 25 on the sides of the second protective cover 11 and the third protective cover 12 are bound to each other, closing the first slit 15 and the third slit 23. At this time, the arm of the aerial work vehicle is wrapped and protected, and it is also convenient to disassemble and clean. Since the third protective cover 12 is mounted on the movable end of the electric telescopic arm 5, when the electric telescopic arm 5 is telescoped, the third protective cover 12 is a multi-pleated folding design, which can be retracted and adjusted as the electric telescopic arm 5 is telescoped. Through the above, it is effectively achieved that when the aerial work vehicle is operating, the entire arm can be protected by the first protective cover 9, the second protective cover 11 and the third protective cover 12, avoiding the problem of paint, cement, putty, etc. dripping on the surface and being difficult to clean.

[0034] See also Figure 2 and Figure 6 A groove 21 is carved out from the top of the bottom of the second arm 6, and the side wall of the second arm 6 is rotatably connected to the support plate 19. A through-hole 24 corresponding to the groove 21 is opened on the support plate 19, and a parasol 8 is inserted into the through-hole 24 and the groove 21. A bayonet is opened on the end of the support plate 19 close to the second arm 6, and a clamping block 20 is fixedly connected to the end of the second arm 6 close to the support plate 19, and the clamping block 20 is rotatably connected to the bayonet through a damping shaft 22.

[0035] When using an aerial work vehicle for operation, if encountering hot weather or rainy days, the support plate 19 can be flipped over by the damping shaft 22 so that its through hole 24 corresponds to the groove 21. At this time, the handle of the parasol 8 can be inserted into the groove 21 through the through hole 24 to engage with it, thereby positioning the parasol 8 so that it can provide sunshade or rain protection for the staff in hot or rainy days.

[0036] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A boom device for an aerial work vehicle, comprising a vehicle body (1), characterized in that: The top of the vehicle body (1) is fixedly connected to a mounting seat (2), and the top of the mounting seat (2) is symmetrically fixedly connected to a card plate, and the two card plates are rotatably connected to a first arm (3) with a bracket (10) at the bottom via a rotating shaft, and the first arm (3) is rotatably connected to an electric telescopic arm (5) at one end away from the mounting seat (2), and a hydraulic rod (4) is installed between the electric telescopic arm (5) and the first arm (3), and the electric telescopic arm (5) is rotatably connected to a second arm (6) at one end away from the first arm (3), and a protective frame (7) is fixedly connected to the side wall of the second arm (6), and a first protective cover (9) is provided on the surface of the first arm (3), and a first slit (15) is provided on the side of the first protective cover (9), and a second slit (17) communicating with the circular hole (16) is provided on the top wall of the first protective cover (9), and a fourth slit corresponding to the bracket (10) is provided on the bottom wall of the first protective cover (9), and a second protective cover (11) is provided on the fixed end surface of the electric telescopic arm (5). A second zipper is installed at one end of the second protective cover (11) and the first protective cover (9) close to each other, and the first protective cover (9) and the second protective cover (11) are closed by the second zipper. A third protective cover (12) is sleeved on the surface of the movable end of the electric telescopic arm (5). A first zipper (18) is installed at one end of the third protective cover (12) and the second protective cover (11) close to each other, and the second protective cover (11) and the third protective cover (12) are closed by the first zipper (18). The cross-section of the third protective cover (12) away from the second protective cover (11) and the cross-section of the first protective cover (9) away from the second protective cover (11) are both symmetrically fixedly connected with a group of first straps (14), the side walls of the second protective cover (11) and the third protective cover (12) are both provided with a third slit (23), the side wall of the mounting seat (2) and the side wall of the electric telescopic arm (5) close to the second arm (6) are both symmetrically fixedly connected with a connecting block (13), and the first strap (14) is bound to the connecting block (13).

2. The boom device for an aerial work vehicle according to claim 1, characterized in that: The bottom of the second arm support (6) is separated from the top and a groove (21) is carved therein. The side wall of the second arm support (6) is rotatably connected to a support plate (19).

3. The boom device for an aerial work vehicle according to claim 2, characterized in that: The support plate (19) is provided with a through hole (24) corresponding to the groove (21), and a parasol (8) is inserted into the through hole (24) and the groove (21).

4. The boom device for an aerial work vehicle according to claim 2, characterized in that: A bayonet is provided at one end of the support plate (19) close to the second arm support (6), a clamping block (20) is fixedly connected to one end of the second arm support (6) close to the support plate (19), and the clamping block (20) and the bayonet are rotationally connected via a damping shaft (22).

5. The boom device for an aerial work vehicle according to claim 1, characterized in that: The third protective cover (12) is of a multi-pleated folding design, and the first protective cover (9) and the second protective cover (11) are both of a large-pleated micro-folding design.

6. The boom device for an aerial work vehicle according to claim 1, characterized in that: The first protective cover (9), the second protective cover (11), and the third protective cover (12) are all made of Oxford cloth.

7. The boom device for an aerial work vehicle according to claim 1, characterized in that: The first protective cover (9), the second protective cover (11) and the third protective cover (12) are respectively located on both sides of the first slit (15) and the third slit (23) and are symmetrically fixedly connected to multiple sets of second binding straps (25).

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