A heavy load integrated operation vehicle

Abstract

The application relates to a heavy-load comprehensive operation vehicle, which comprises a chassis, a truck-mounted crane installed on the chassis, a lifting arm fork used for forking operation objects and conveying the forking operation objects to a designated position by the truck-mounted crane, wherein the lifting arm fork comprises a lifting arm, a fork tooth seat, two fork teeth and a telescopic support, the fork tooth seat comprises a first mounting seat and two movable pieces, the two movable pieces are rotatably connected with the first mounting seat, the two fork teeth are connected with the two movable pieces respectively, the lifting arm is connected with the first mounting seat, and the two ends of the telescopic support are connected with the two movable pieces or the two fork teeth, so that the distance between the two fork teeth is adjusted to adapt to forking operation objects with different sizes. The application has the effects of carrying heavy-load objects and approaching on-site operation.

Description

Technical Field

[0001] This invention relates to the technical field of work vehicles, and in particular to a heavy-duty integrated work vehicle. Background Technology

[0002] Currently, commonly used multi-purpose work vehicles on the market typically use forklifts to load and unload heavy objects. However, forklifts have a low load capacity and generally cannot meet the needs of operations involving items exceeding one ton. Additionally, obstacles may exist around the construction site, hindering the work vehicle's access. For example, transformer poles along highways are often surrounded by flower beds or guardrails. Existing multi-purpose work vehicles cannot cross these barriers to reach the transformer poles for operation; they must park nearby and manually move the items to be replaced or repaired over the flower beds or guardrails to perform the repair work.

[0003] Regarding the aforementioned technologies, the inventors believe that existing work vehicles have shortcomings such as low load capacity and inability to approach the work site. Summary of the Invention

[0004] In view of this, the present invention provides a heavy-duty integrated work vehicle to realize the transportation of heavy-duty items and close-to-site operations.

[0005] The present invention provides a heavy-duty integrated work vehicle with the following technical solution: A heavy-duty integrated work vehicle includes: a chassis; a truck-mounted crane mounted on the chassis; and a boom fork for forking and transporting workpieces to a designated location via the truck-mounted crane. The boom fork includes a boom, a fork tooth seat, two fork teeth, and a telescopic support member. The fork tooth seat includes a first mounting base and two movable parts, which are rotatably connected to the first mounting base. The two fork teeth are respectively connected to the two movable parts. The boom is connected to the first mounting base. The two ends of the telescopic support member are connected to the two movable parts or the two fork teeth to adjust the distance between the two fork teeth to accommodate workpieces of different sizes.

[0006] By adopting the above technical solution, the combination of truck-mounted crane and boom fork can both load and transport items, realizing comprehensive operations with heavy loads. It can also be used to pick up and transport items of different sizes, cross obstacles to approach the construction site, reduce manual handling, reduce manual safety hazards and improve construction efficiency.

[0007] Preferably, the boom includes a first boom, a second boom, and a safety buckle. The first boom and the second boom are arranged at relative inclinations. The first boom has multiple lifting holes spaced apart along its length, one of which is connected to the safety buckle. The safety buckle is used to connect to the hook of the truck crane. The safety buckle can be adjusted to lift by connecting to different lifting holes. The second boom has multiple fixing holes spaced apart along its length. The fixing holes are used to connect to the first mounting base. The first mounting base can be adjusted to lift by connecting to different fixing holes.

[0008] By adopting the above technical solution, the lifting angle and distance can be adjusted according to items with different center of gravity positions and sizes, ensuring the stability of the lifting.

[0009] Preferably, the retractable support includes a first connecting rod, a second connecting rod, and an adjusting sleeve. The two ends of the adjusting sleeve along its length are provided with internal threads in opposite directions. The first connecting rod and the second connecting rod are connected to the internal threads. When the adjusting sleeve rotates, the first connecting rod and the second connecting rod extend out of the two ends of the adjusting sleeve simultaneously or retract into the adjusting sleeve. The ends of the first connecting rod and the second connecting rod away from the adjusting sleeve are connected to the two forked teeth.

[0010] By adopting the above technical solution, the distance between the two fork teeth can be adjusted and fixed to accommodate items of different sizes.

[0011] Preferably, the vehicle also includes a cargo box, which is mounted on top of the chassis. The cargo box includes a first door and a second door. The first door is located at the rear of the cargo box, and the second door is located at the bottom of the cargo box. The first door is rotatably connected to the chassis to open or close the cargo box, and the second door is rotatably connected to the chassis to open or close the working fixtures mounted below the chassis.

[0012] By adopting the above technical solution, the working equipment is placed under the chassis, saving space. The working equipment is protected by being shielded by the second door, while the cargo box can be used to place goods, thus increasing the functionality of the integrated operation vehicle.

[0013] Preferably, the working fixture includes a cable-laying mechanism, which includes at least two cable-laying reels and at least one fixed rod. The cable-laying reel includes a reel frame and two rollers. The fixed rod is connected to the chassis. The reel frame is rotatably connected to the fixed rod. The two rollers are rotatably connected to the reel frame and are located on the side of the reel frame near the second door.

[0014] By adopting the above solution, the cable laying mechanism has a simple structure and achieves self-rotation when laying cables through the cable reel, eliminating the need for additional drive and saving costs.

[0015] Preferably, the cable-laying mechanism includes six cable-laying reels and two fixed rods. Each fixed rod is connected to three cable-laying reels to form a cable-laying assembly. The three cable-laying reels are spaced apart along the length of the fixed rods, and the two cable-laying assemblies are spaced apart along the length of the base. The six cable-laying reels are arranged symmetrically in pairs, and each cable-laying reel can slide along the length of the fixed rods to adjust its position.

[0016] By adopting the above technical solutions, the cable laying mechanism can be adapted to cable reels of different sizes, thereby improving the adaptability of the construction site.

[0017] Preferably, the disc frame includes two triangular plates and a shaft cylinder. The triangular plates include a first long side, a second long side, and a bottom side. The length of the first long side is greater than the length of the second long side. The shaft cylinder is connected to the two triangular plates and is close to the intersection of the first long side and the second long side. The two rollers are connected to the two triangular plates and are close to the bottom side. The second long side of the disc frame faces the position between the two fixed rods.

[0018] By adopting the above technical solution, the triangular plate is set to allow the two rollers to swing around the axis of the fixed rod so as to contact the cable reel.

[0019] Preferably, the device also includes a carriage for placing work items. The carriage includes multiple doors facing outwards, with different doors corresponding to different items.

[0020] By adopting the above technical solutions, the integrated work vehicle can accommodate different work items and facilitate targeted loading and unloading.

[0021] Preferably, the carriage includes a first compartment and two second compartments, the two second compartments are arranged at intervals and connected to the first compartment, and a storage area is provided between the two second compartments for placing the boom forks. The storage area includes a positioning plate, which is detachably connected to the two second compartments and is used to position the boom forks.

[0022] By adopting the above-mentioned technology, the boom forks can be placed stably when not in use, avoiding the safety hazards caused by them getting caught on the truck crane.

[0023] Preferably, it also includes a hydraulic winch mechanism. The chassis includes a base plate and a tail end plate. The hydraulic winch mechanism is connected to the chassis and located below the base plate. The tail end plate is provided with a traction port. The hydraulic winch mechanism lays out the line for construction through the traction port.

[0024] By adopting the above technical solutions, the integrated operation vehicle can be used in operation scenarios such as towing and rescue or connecting heavy objects. The hydraulic winch mechanism is located below the base plate and does not occupy other space above the base plate. The towing port at the rear end of the enclosure facilitates cable laying. The entire vehicle has a compact layout and multiple operation functions.

[0025] This invention replaces forklift operations with a truck-mounted crane and boom forks, enabling heavy-duty operations and access to construction sites by traversing obstacles. A cargo box is provided for storing work items, and a cable-laying mechanism is installed below the cargo box for easy cable-laying, achieving multiple uses from a single box. A hydraulic winch mechanism is installed below the floor plate for cable-laying functions such as towing and rescue, enhancing the comprehensiveness and multi-functionality of the integrated work vehicle. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the heavy-duty integrated operation vehicle provided in Embodiment 1 of the present invention.

[0027] Figure 2 This is a three-dimensional schematic diagram of the boom fork provided in Embodiment 1 of the present invention.

[0028] Figure 3 This is a cross-sectional schematic diagram of the retractable support member provided in Embodiment 1 of the present invention.

[0029] Figure 4 This is a schematic diagram of the heavy-duty integrated operation vehicle provided in Embodiment 1 of the present invention during the lifting of a transformer.

[0030] Figure 5 This is a schematic diagram of the heavy-duty integrated operation vehicle provided in Embodiment 1 of the present invention transporting a transformer.

[0031] Figure 6 This is a schematic diagram of opening the second car door provided in Embodiment 1 of the present invention.

[0032] Figure 7 This is a schematic diagram of the heavy-duty integrated operation vehicle provided in Embodiment 1 of the present invention during cable laying operations.

[0033] Figure 8 This is a cross-sectional schematic diagram of the tray frame provided in Embodiment 1 of the present invention.

[0034] Figure 9 This is another schematic diagram of the heavy-duty integrated operation vehicle provided in Embodiment 1 of the present invention during cable laying operations.

[0035] Figure 10 This is a schematic diagram of the heavy-duty integrated work vehicle provided in Embodiment 1 of the present invention after the first door, the second door, and the rear end panel are hidden.

[0036] Figure 11This is a partial schematic diagram of the bottom of the heavy-duty integrated operation vehicle provided in Embodiment 1 of the present invention.

[0037] Figure 12 This is a schematic diagram of the boom fork provided in Embodiment 2 of the present invention.

[0038] Explanation of reference numerals in the attached drawings: 100, Transformer; 200, Cable reel; 301, Generator; 302, Prefabricated platform for cable head; 1, Cab; 11, Main beam; 2, Chassis; 21, Floor plate; 22, Chassis side panel; 221, Rear end panel; 222, Towing port; 23, Support beam; 3, Truck-mounted crane; 31, First hydraulic outrigger; 32, Second hydraulic outrigger; 4, Boom forks; 41, Boom; 411, First boom; 4111, Lifting hole; 412, Second boom; 4121, First fixing hole; 413, Safety buckle; 42, Fork tooth seat; 421, First mounting seat; 4211, Second fixing hole; 422, Mounting plate; 4221, Third shaft hole; 423, Moving part; 4231, First shaft hole; 4232, Second... 43. Shaft hole; 43. Fork tooth; 431. Second mounting seat; 4311. Fourth shaft hole; 44. Telescopic support; 441. First connecting rod; 442. Second connecting rod; 443. Adjusting screw sleeve; 444. Third connecting rod; 445. Adjusting bolt; 5. Cargo box; 51. First door; 52. Second door; 6. Hydraulic winch mechanism; 61. Hydraulic winch; 62. Third mounting seat; 7. Cable laying mechanism; 71. Cable laying reel; 711. Reel frame; 7111. First long side; 7112. Second long side; 7113. Bottom edge; 7114. Shaft cylinder; 7115. Fifth shaft hole; 712. Roller; 72. Fixing rod; 8. Cargo box; 81. Box door; 82. First box body; 83. Second box body; 84. Storage area; 841. Positioning plate. Detailed Implementation

[0039] To better understand the objectives, technical solutions, and advantages of this invention, the invention has been described and illustrated below with reference to the accompanying drawings and embodiments. However, those skilled in the art should understand that the invention can be practiced without these details. In some cases, to avoid obscuring various aspects of the invention through unnecessary description, well-known methods, processes, systems, components, and / or circuits already described at a higher level will not be elaborated upon. It will be apparent to those skilled in the art that various modifications can be made to the embodiments disclosed in this invention, and the general principles defined in this invention can be applied to other embodiments and application scenarios without departing from the principles and scope of the invention. Therefore, this invention is not limited to the illustrated embodiments, but conforms to the broadest scope consistent with the scope of protection claimed by this invention.

[0040] It should be noted that the descriptions of these embodiments are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples.

[0043] This invention discloses a heavy-duty integrated work vehicle that can be applied to various road or power grid construction sites. Specifically, it can be used for pole-mounted transformer loading and unloading, pole erection, cable laying, winch traction, cargo hoisting, guy wire head fabrication, nighttime lighting, and power generation. This heavy-duty integrated work vehicle has multiple functions and strong comprehensive capabilities.

[0044] Please refer to Figure 1 This is a schematic diagram of a heavy-duty integrated work vehicle provided in an embodiment of the present invention. The heavy-duty integrated work vehicle includes a cab 1, a chassis 2, a truck-mounted crane 3, and a boom fork 4. The chassis 2 includes chassis side panels 22 and a floor plate 21, etc. The truck-mounted crane 3, also known as a truck-mounted hoist, is mounted on the chassis 2 and connected to the floor plate 21. The boom fork 4 is used to lift work objects, which refer to items needed for construction work in low-altitude or high-altitude environments, including but not limited to transformers 100, utility poles, and other electrical equipment. After the boom fork 4 picks up these aerial work objects, they are transported to the designated location by the truck-mounted crane 3 for on-site work. The truck-mounted crane 3 used in this embodiment has a lifting capacity greater than 1 ton, for example, 2.5 tons, thus it is suitable for lifting heavy items and achieving a heavy-duty function. Furthermore, the truck-mounted crane 3 can rotate up to 240°, and its working radius and height can both exceed 5 meters, enabling it to cross obstacles to approach the construction location, reducing manual handling, lowering safety hazards, and improving construction efficiency.

[0045] like Figure 2 As shown, the boom fork 4 includes a boom 41, a fork seat 42, two fork teeth 43, and a telescopic support 44. The fork seat 42 includes a first mounting base 421 and two movable parts 423. The two movable parts 423 are located on opposite sides of the first mounting base 421, with one end rotatably connected to the first mounting base 421. The two movable parts 423 are inclined relative to the first mounting base 421 and symmetrically arranged with the center line of the first mounting base 421 as a reference. The two movable parts 423 can perform a flipping movement relative to the first mounting base 421 to change their tilt angle with the first mounting base 421. Two fork tines 43 are respectively connected to the ends of two movable parts 423 away from the first mounting base 421 and are arranged in parallel. The two ends of the telescopic support 44 are respectively connected to the two movable parts 423 or the two fork tines 43 and are close to the ends of the two movable parts 423 away from the first mounting base 421. The two movable parts 423 adjust their tilt angle with the first mounting base 421 by extending and retracting through the telescopic support 44. When the tilt angle of the two movable parts 423 changes, the distance between the two fork tines 43 changes synchronously to adapt to forking different aerial work objects. One end of the boom 41 is detachably connected to the truck crane 3, and the other end is connected to the first mounting base 421, so that the truck crane 3 can lift and transport the entire boom fork 4 and the items on the fork tines 43 by lifting the boom 41.

[0046] This invention combines a truck-mounted crane 3 and a boom fork 4 to achieve both forklift loading and transport of goods. By selecting the appropriate specifications for the truck-mounted crane 3, it enables comprehensive operations with heavy loads and is suitable for forklifting and transporting goods of different sizes. It can also cross obstacles to approach the construction site, reducing manual handling, minimizing safety hazards, and improving construction efficiency. It is multifunctional and highly integrated.

[0047] like Figure 2As shown, the boom 41 includes a first lifting rod 411, a second lifting rod 412, and a safety buckle 413. The first mounting base 421 is made of square steel pipe, and two mounting pieces 422 are symmetrically welded to its two opposite sides. The first lifting rod 411 and the second lifting rod 412 are also made of square steel pipe, and the outer dimension of the second lifting rod 412 is smaller than the inner dimension of the first mounting base 421. The second lifting rod 412 can be inserted into the first mounting base 421. The first lifting rod 411 and the second lifting rod 412 are set at relative inclinations. The first lifting rod 411 has multiple lifting holes 4111 spaced apart along its length. One of the lifting holes 4111 is connected to the safety buckle 413. The safety buckle 413 is used to connect to the hook of the truck crane 3. The safety buckle 413 can be connected to different lifting holes 4111 to adjust the lifting angle to adapt to the lifting of items with different center of gravity positions. The second boom 412 has multiple first fixing holes 4121 spaced along its length, and the first mounting base 421 has corresponding second fixing holes 4211. The first fixing holes 4121 and the second fixing holes 4211 are bolted to connect and fix the boom 41 to the first mounting base 421. The second fixing holes 4211 on the first mounting base 421 are connected to different first fixing holes 4121 to adjust the lifting distance to accommodate items of different heights and sizes. The two movable parts 423 are made of flat steel tubes, with first shaft holes 4231 and second shaft holes 4232 passing through both ends of their rectangular lengths. The two mounting plates 422 extend out of the first mounting base 421 and have corresponding third shaft holes 4221 at both ends. The first shaft holes 4231 of the two movable parts 423 and the second shaft holes 4232 of the two mounting plates 422 are connected by pins, allowing the two movable parts 423 to rotate relative to the first mounting base 421 and change the angle between them. A second mounting base 431 is provided at one end of the length direction of the two forks 43. The second mounting base 431 is provided with a fourth shaft hole 4311. The second shaft hole 4232 of the two movable parts 423 is connected to the fourth shaft hole 4311 of the two second mounting bases 431 by a pin, so that the two movable parts 423 can rotate relative to the second mounting base 431.

[0048] like Figure 3As shown, the telescopic support 44 includes a first connecting rod 441, a second connecting rod 442, and an adjusting sleeve 443. The adjusting sleeve 443 is hollow inside, and both its first and second ends in the length direction are provided with internal threads. The internal threads at the first and second ends have opposite directions of rotation. The first connecting rod 441 is provided with an external thread adapted to the internal thread at the first end, and the second connecting rod 442 is provided with an external thread adapted to the internal thread at the second end. The first connecting rod 441 and the second connecting rod 442 are respectively threaded to both ends of the adjusting sleeve 443. When the adjusting sleeve 443 rotates, the first connecting rod 441 and the second connecting rod 442 extend out of the two ends of the adjusting sleeve 443 or retract into the adjusting sleeve 443. The ends of the first connecting rod 441 and the second connecting rod 442 away from the adjusting sleeve 443 are connected to the two second mounting seats 431. Thus, when the adjusting sleeve 443 rotates, the distance between the two fork teeth 43 can be adjusted and positioned by thread engagement. The angle between the two moving parts 423 and the first mounting seat 421 is also adjusted synchronously, thereby adapting to the hoisting of items of different widths.

[0049] Taking the installation of a transformer 100 on a utility pole as an example, existing integrated work vehicles typically have a forklift positioned at the rear. The process of lifting and lowering the transformer 100 causes the vehicle to sway and become unstable. Furthermore, after the transformer 100 is placed in its installation position on the pole, the integrated work vehicle must be driven away from the utility pole to allow the forklift to remove the transformer 100, resulting in inconvenient operation and low efficiency. When using the heavy-duty integrated work vehicle provided in this embodiment to install the transformer 100, such as… Figure 4 As shown, before lifting, the distance between the two fork teeth 43 is adjusted according to the size of the transformer 100. The truck-mounted crane 3 transports the transformer 100 to the installation position on the utility pole. After the transformer 100 is placed in place, the truck-mounted crane 3 controls the fork teeth 43 to separate from the transformer 100, which is easy to operate. The truck-mounted crane 3 is supported by its two first hydraulic outriggers 31. When the truck-mounted crane 3 is working, the two first hydraulic outriggers 31 extend to both sides of the chassis 2 along the length direction and are supported by the ground, spanning both sides of the vehicle to prevent swaying during operation. At the second end of the chassis 2 along the length direction, that is, near the rear of the vehicle, there are two second hydraulic outriggers 32, which extend to the ground in sync with the two first hydraulic outriggers 31 and are supported by the ground, improving the stability of the entire vehicle. When the crane is not in operation, the two first hydraulic outriggers 31 and the two second hydraulic outriggers 32 retract and separate from the ground, without affecting the normal driving of the vehicle. After the two first hydraulic outriggers 31 are retracted, they do not protrude to both sides of the chassis 2 along the length direction.

[0050] Please continue to refer to this. Figure 1 The heavy-duty multi-purpose vehicle also includes a cargo box 5, which is mounted on the chassis 2 and located at the end of the chassis 2 furthest from the cab 1. The cargo box 5 is used to carry various items that need to be transported, such as... Figure 5As shown, the cargo box 5 can hold the transformer 100 that needs to be installed at the construction site. It is transported to the construction site by a multi-purpose vehicle and then lifted by the truck-mounted crane 3, making it a multi-purpose vehicle. The cargo box 5 includes a first door 51 and a second door 52. The first door 51 is located at the rear of the cargo box 5, and the second door 52 is located at the bottom of the cargo box 5. The bottom of the first door 51 is hinged to the chassis 2 to open or close the cargo box 5 for easy loading and unloading of goods. The second door 52 is hinged to the chassis 2 to open or close the working tools installed under the chassis 2. The working tools include various auxiliary devices required at the work site, such as traction devices for cable winding and unwinding, hydraulic winches for rescue towing, etc. When both the first door 51 and the second door 52 are closed, the first door 51 and the second door 52 are perpendicular. This invention saves space by placing the work equipment under the chassis 2. The work equipment is covered by the second door 52, so that the cargo box 5 can be used to store goods on a daily basis. When the work equipment is needed for construction work, the second door 52 is opened, which increases the functionality of the integrated work vehicle.

[0051] Please refer to Figure 6 The working fixture located below the second door 52 is a cable-laying mechanism 7. The cable-laying mechanism 7 is used to connect with the cable reel 200 and to rotate the cable reel 200 during cable laying. The cable-laying mechanism 7 includes at least two cable-laying reels 71 and at least one fixing rod 72. The cable-laying reel 71 includes a reel frame 711 and two rollers 712. The chassis 2 is provided with at least two support beams 23. The two support beams 23 are arranged parallel to each other at intervals along the width direction of the chassis 2. The fixing rod 72 passes through the two support beams 23 and is connected to the side panels on both sides of the chassis 2 along the length direction. The reel frame 711 is rotatably sleeved with the fixing rod 72. The two rollers 712 are rotatably connected to the reel frame 711 and are located on the side of the reel frame 711 closer to the second door 52. When laying cables, the cable reel 200 can be placed on two cable laying reels 71 and abut against two rollers 712 on the cable laying reels 71. During cable laying, the cable reel 200 and rollers 712 are pulled to rotate, ensuring smooth cable laying. This invention sets the cable laying mechanism 7 as a cable laying reel 71 and a fixing rod 72. The cable laying reel 71 includes a reel frame 711 and rollers 712, resulting in a simple structure. Furthermore, the cable reel 200 rotates during cable laying, eliminating the need for additional drive and saving costs.

[0052] like Figure 7 As shown, the cable-laying mechanism 7 includes six cable-laying reels 71 and two fixing rods 72. Each fixing rod 72 is connected to three cable-laying reels 71 to form a cable-laying assembly. The three cable-laying reels 71 are spaced apart along the length of the fixing rods 72 and can slide along the fixing rods 72 to adjust their positions, thereby changing the position between two adjacent cable-laying reels 71 to accommodate cable reels 200 of different sizes. The two cable-laying assemblies are spaced apart along the length of the base 2. Figure 8As shown, the tray frame 711 includes two triangular plates and a shaft cylinder 7114. The triangular plates include a first long side 7111, a second long side 7112, and a bottom side 7113. The length of the first long side 7111 is greater than the length of the second long side 7112. Two rollers 712 are located at the two corners of the triangular plates and near the bottom side 7113. A plurality of fifth shaft holes 7115 are provided at intervals on the triangular plates. The fifth shaft holes 7115 are used to connect with the central shaft of the rollers 712. The rollers 712 can rotate around their central shaft or rotate through the central shaft in the fifth shaft holes 7115. By connecting with the fifth shaft holes 7115 at different positions, the distance between the two rollers 712 can be changed to accommodate cable trays 200 of various diameters. The shaft cylinder 7114 is connected to two triangular plates and is located near the intersection of the first long side 7111 and the second long side 7112. The shaft cylinder 7114 is hollow and passes through the two triangular plates. The cable reel 71 is sleeved and connected to the fixing rod 72 through the shaft cylinder 7114, and the shaft cylinder 7114 rotates around the circumference of the fixing rod 72 to adjust the angle to accommodate cable reels 200 of different diameters. The reel frames 711 on the two cable laying assemblies are symmetrically arranged. The reel frame 711 on the cable laying assembly near the first door 51 has its first long side 7111 facing the first door 51. In the direction of the first door 51, the cable tray 711 on the cable-laying assembly away from the first door 51 has its first long side 7111 facing the driver's cab 1. After the cable reel 200 is placed on it, the second long side 7112 of the tray 711 swings towards the ground. The first long side 7111 tilts up, causing both rollers 712 on the tray 711 to contact the cable reel 200. Through the friction between the rollers 712 and the cable reel 200, the rollers 712 rotate synchronously when the cable reel 200 lays the cable, assisting the cable reel 200 in rotating and laying the cable. By setting the length of the first long side 7111 of the tray 711 to be greater than the length of the second long side 7112, and setting the first long side 7111 of the tray 711 on both fixing rods 72 to face outwards (the area between the two fixing rods 72 is the inner side), and the second long side 7112 to face inwards, it is ensured that the cable reel 200 can contact the rollers 712 when placed on it. The cable reel 200 can be placed on four cable-laying reels 71. Depending on the size, larger cable reels 200 can be placed on the four cable-laying reels 71 located at both ends of the fixed rod 72 along its length, while smaller ones can be placed on the four cable-laying reels 71 located in the middle and at one end. Therefore, this invention can adapt to cable reels 200 of different diameters in multiple ways by adjusting the spacing of the rollers 712, adjusting the spacing between two adjacent cable-laying reels 71, and setting multiple cable-laying reels 71, thus exhibiting strong adaptability. During cable-laying operations, the first door 51 can be closed to prevent the cable reel 200 from rolling out of the cargo box 5.

[0053] like Figure 6 , Figure 7 and Figure 9As shown, a cargo box 8 is also included between the truck-mounted crane 3 and the cargo box 5. The cargo box 8 is used to place various items needed at the work site, such as the generator 301, the prefabricated platform 302 for cable heads, and tools. The cargo box 8 includes multiple doors 81, which face the outside of the cargo box 8, so as to facilitate opening the doors 81 to retrieve items. Different doors 81 correspond to different items, and the items are placed in separate areas to avoid clutter. The carriage 8 includes a first box 82 and two second boxes 83. The two second boxes 83 are spaced apart and connected to the first box 82. The two second boxes 83 are close to the cargo box 5, and a storage area 84 is provided between the two second boxes 83. The storage area 84 can be placed when the boom forks 4 are not in use. The storage area 84 includes a positioning plate 841, which is removably connected to the two second boxes 83. The positioning plate 841 has grooves (not shown in the figure) on both sides facing the two second boxes 83, and corresponding protrusions (not shown in the figure) on the two second boxes 83. The grooves and protrusions are fitted and engaged. When removal is needed, the positioning plate 841 can be pulled upwards. The positioning plate 841 is used to position the boom forks 4 to prevent them from moving during transportation. The positioning plate 841 has a positioning groove on the side facing the chassis 2, which engages with the fork teeth 43 of the boom forks 4 to position the boom forks 4. After the positioning plate 841 is removed, the storage area 84 is connected to the cargo box 5, so that the crane fork 4 can be directly removed from the storage area 84 to pick up items on the cargo box 5. The operation is very simple and greatly improves the efficiency of on-site construction.

[0054] like Figure 6 As shown, the work equipment also includes a hydraulic winch mechanism 6, used for rescue towing or connecting heavy objects at the construction site. The hydraulic winch mechanism 6 is located below the base plate 21 and connected to the chassis 2. The chassis enclosure 22 includes a tail end enclosure 221. The hydraulic winch mechanism 6 is located between the cable-laying mechanism 7 and the tail end enclosure 221, and a traction port 222 is provided on the tail end enclosure 221. The traction rope of the hydraulic winch 61 can extend through the traction port 222 for on-site operations. The second door 52 can extend to the junction with the first door 51, so that the hydraulic winch mechanism 6 is also located below the second door 52. When the second door 52 is open, it facilitates the operation or maintenance of the hydraulic winch. By installing the hydraulic winch mechanism 6 below the base plate 21, space is saved. The traction port at the tail end enclosure 221 facilitates cable laying. The hydraulic winch mechanism 6 is located between the cable-laying mechanism and the tail end enclosure 221, resulting in a compact layout. The integrated work vehicle does not interfere with each other during various operations.

[0055] like Figure 10 and Figure 11As shown, the hydraulic winch mechanism 6 includes a hydraulic winch 61 and a third mounting base 62. The third mounting base 62 is located below the support beam 23 and is connected to two main beams 11. The first end of the two main beams 11 in the longitudinal direction is connected to the cab 1. The support beam 23 is connected to the main beams 11. Two second hydraulic outriggers 32 are respectively connected to the two main beams 11 and are close to the second end of the main beams 11. The third mounting base 62 is made of two square tubes. The hydraulic winch 61 is installed by connecting the main beams 11 to the third mounting base 62. This makes the structure of the third mounting base 62 simple and the installation stable. Moreover, the hydraulic winch mechanism 6 and the cable laying mechanism 7 are staggered vertically and do not interfere with each other.

[0056] The heavy-duty integrated work vehicle provided in this embodiment of the invention comprises a cab 1, a cargo box 8, and a cargo container 5 arranged sequentially. The cab 1 is connected to the first end of the chassis 2 along its length. The cargo container 5 is mounted on the chassis 2 and located near the second end of the chassis 2 along its length. The cargo box 8 is mounted on the chassis 2 and located near the cargo container 5. A truck-mounted crane 3 is located between the cargo box 8 and the cab 1. The cargo container 5 is positioned at the rear of the vehicle for easy loading and unloading of goods. The truck-mounted crane 3 is positioned near the cab 1, without affecting the use of the cargo container 5 and the cargo box 8. The entire vehicle has a compact layout, multiple operational functions, and is easy to operate.

[0057] Example 2: Please refer to Figure 12 This is a schematic diagram of the boom fork 4 provided in Embodiment 2 of the present invention. The difference between Embodiment 2 and Embodiment 1 lies in the structure of the telescopic support member 44. In Embodiment 2, the telescopic support member 44 includes two third connecting rods 444 and two adjusting bolts 445. The first ends of the two third connecting rods 444 are arranged crosswise and hinged by a pin to form a telescopic scissor fork structure. The two adjusting bolts 445 are respectively connected to the second ends of the two third connecting rods 444. The third connecting rods 444 are connected to the second mounting base 431 through the adjusting bolts 445. By loosening the adjusting bolts 445, the distance between the two fork teeth 43 can be controlled. By tightening the adjusting bolts 445, the distance between the two fork teeth 43 can be fixed, thereby achieving stable clamping and positioning of aerial work objects of different diameters.

[0058] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A heavy-duty integrated work vehicle, characterized in that, include: Chassis (2); The truck-mounted crane (3) is installed on the chassis (2); The boom forks (4) are used for forking the workpiece and transporting it to the designated location by the truck crane (3); The boom fork (4) includes a boom (41), a fork seat (42), two fork teeth (43), and a telescopic support (44). The fork seat (42) includes a first mounting base (421) and two movable parts (423). The two movable parts (423) are rotatably connected to the first mounting base (421). The two fork teeth (43) are respectively connected to the two movable parts (423). The boom (41) is connected to the first mounting base (421). The two ends of the telescopic support (44) are connected to the two movable parts (423) or the two fork teeth (43) to adjust the distance between the two fork teeth (43) to adapt to forklifting workpieces of different sizes. It also includes a cargo box (5), which is installed above the chassis (2). The cargo box (5) includes a second door (52), which is rotatably connected to the chassis (2) to open or close the working equipment installed below the chassis (2). The second door (52) is used to place goods when it covers the working equipment. The working fixture includes a cable laying mechanism (7), which includes at least two cable laying reels (71) and at least one fixed rod (72). The cable laying reel (71) includes a reel frame (711) and two rollers (712). The fixed rod (72) is connected to the chassis (2). The reel frame (711) is rotatably connected to the fixed rod (72). The two rollers (712) are rotatably connected to the reel frame (711) and are located on the side of the reel frame (711) near the second door (52). The tray frame (711) includes two triangular plates and a shaft cylinder (7114), the shaft cylinder (7114) is connected to the two triangular plates, and the two rollers (712) are connected to the two triangular plates.

2. The heavy-duty integrated work vehicle according to claim 1, characterized in that: The boom (41) includes a first boom (411), a second boom (412), and a safety buckle (413). The first boom (411) and the second boom (412) are inclined relative to each other. The first boom (411) has a plurality of lifting holes (4111) spaced apart along its length. One of the lifting holes (4111) is connected to the safety buckle (413). The safety buckle (413) is used to connect to the hook of the truck crane (3). The safety buckle (413) is used to adjust the lifting angle by connecting to different lifting holes (4111). The second boom (412) has a plurality of fixing holes spaced apart along its length. The fixing holes are used to connect to the first mounting base (421). The first mounting base (421) is used to adjust the lifting distance by connecting to different fixing holes.

3. The heavy-duty integrated work vehicle according to claim 2, characterized in that: The retractable support (44) includes a first connecting rod (441), a second connecting rod (442), and an adjusting sleeve (443). The two ends of the adjusting sleeve (443) in the length direction are provided with internal threads with opposite helical directions. The first connecting rod (441) and the second connecting rod (442) are connected to the internal threads. When the adjusting sleeve (443) rotates, the first connecting rod (441) and the second connecting rod (442) extend out of the two ends of the adjusting sleeve (443) or retract into the adjusting sleeve (443). The ends of the first connecting rod (441) and the second connecting rod (442) away from the adjusting sleeve (443) are connected to the two forks (43).

4. The heavy-duty integrated work vehicle according to claim 1, characterized in that: The cargo box (5) includes a first door (51) located at the rear of the cargo box (5) and a second door (52) located at the bottom of the cargo box (5). The first door (51) is rotatably connected to the chassis (2) to open or close the cargo box (5).

5. The heavy-duty integrated work vehicle according to claim 1, characterized in that: The cable-laying mechanism (7) includes six cable-laying reels (71) and two fixing rods (72). Each fixing rod (72) is connected to three cable-laying reels (71) to form a cable-laying assembly. The three cable-laying reels (71) are spaced apart along the length direction of the fixing rods (72), and the two cable-laying assemblies are spaced apart along the length direction of the chassis (2). The six cable-laying reels (71) are arranged symmetrically in pairs, and each cable-laying reel (71) can slide along the length direction of the fixing rods (72) to adjust its position.

6. The heavy-duty integrated work vehicle according to claim 5, characterized in that: The triangular plate includes a first long side (7111), a second long side (7112), and a bottom side (7113). The length of the first long side (7111) is greater than the length of the second long side (7112). The shaft cylinder (7114) is located near the intersection of the first long side (7111) and the second long side (7112). The two rollers (712) are located near the bottom side (7113). The second long side (7112) of the plate frame (711) faces the position between the two fixed rods (72).

7. The heavy-duty integrated work vehicle according to claim 1, characterized in that: It also includes a carriage (8) for placing work items. The carriage (8) includes multiple doors (81) facing the outside of the carriage (8). Different doors (81) correspond to different items.

8. The heavy-duty integrated work vehicle according to claim 7, characterized in that: The carriage (8) includes a first box (82) and two second boxes (83). The two second boxes (83) are arranged at intervals and connected to the first box (82). A storage area (84) is provided between the two second boxes (83). The storage area (84) is used to place the boom fork (4). The storage area (84) includes a positioning plate (841). The positioning plate (841) is detachably connected to the two second boxes (83). The positioning plate (841) is used to position the boom fork (4).

9. The heavy-duty integrated work vehicle according to any one of claims 1-8, characterized in that: It also includes a hydraulic winch mechanism (6). The chassis (2) includes a base plate (21) and a tail end plate (221). The hydraulic winch mechanism (6) is connected to the chassis (2) and located below the base plate (21). The tail end plate (221) is provided with a traction port (222). The hydraulic winch mechanism (6) lays out the line through the traction port (222).

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