Preventive maintenance construction aggregate supply vehicle

Abstract

The application provides a preventive maintenance construction aggregate supply vehicle, which comprises a supply vehicle, a moving frame assembly and a cleaning assembly; the supply vehicle comprises a vehicle body, the vehicle body is connected with an asphalt tank and an aggregate bin, a discharging conveyor belt is arranged in the aggregate bin; the cleaning assembly comprises a moving box, symmetric straight grooves and symmetric semicircular grooves are arranged on one side of the moving box, two ends of the symmetric semicircular grooves are respectively connected with corresponding straight grooves, guide vertical rods are respectively arranged on two sides of the moving box, the moving box is connected with symmetric square plates, and the moving box is connected with guide short rods; two groups of symmetric guide vertical rods respectively pass through cross grooves. The application relates to the technical field of pavement maintenance, in particular to a preventive maintenance construction aggregate supply vehicle. The preventive maintenance construction aggregate supply vehicle is developed according to the defects of the prior art, the supply vehicle can be connected with each other, the construction efficiency is improved, and the conveyor belt can be conveniently cleaned.

Description

Technical Field

[0001] This invention relates to the field of road maintenance technology, and in particular to a preventive maintenance construction aggregate supply vehicle. Background Technology

[0002] Preventive maintenance mainly includes processes such as micro-surfacing, ultra-surfacing, and thin-layer overlay. Micro-surfacing and ultra-surfacing are widely used as mature preventive maintenance processes. However, the effective loading capacity of micro-surfacing and ultra-surfacing construction vehicles can only cover a single lane for about 300 meters. With the upgrading of control over oversized vehicles, construction efficiency is greatly affected.

[0003] Currently, there is a lack of interconnected supply vehicles to enable continuous construction operations, thereby improving construction efficiency and facilitating the cleaning of the conveyor belt for subsequent use.

[0004] Therefore, in order to address the above problems, a preventive maintenance construction aggregate supply vehicle is proposed to solve these problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention develops a preventative maintenance construction aggregate supply vehicle. This invention enables the supply vehicles to be interconnected to improve construction efficiency and facilitates the cleaning of the conveyor belt.

[0006] The technical solution to the technical problem solved by the present invention is as follows: The present invention provides a preventive maintenance construction aggregate supply vehicle, including a supply vehicle, a mobile frame assembly, and a cleaning assembly; the supply vehicle includes a vehicle body, the vehicle body is connected to an asphalt tank and an aggregate bin, and a discharge conveyor belt is installed inside the aggregate bin; the cleaning assembly includes a mobile box, one side of which is provided with symmetrical straight grooves and symmetrical semi-circular grooves, the two ends of the symmetrical semi-circular grooves are respectively connected to the corresponding straight grooves, guide vertical rods are respectively connected to both sides of the mobile box, the mobile box is connected to symmetrical square plates, and the mobile box is connected to guide short rods; the two sets of symmetrical guide vertical rods are respectively... The cross grooves are symmetrically connected to chutes, and circular blocks are set in each of the symmetrical chutes. These circular blocks are connected to U-shaped shafts, which are rotatably connected to symmetrical square plates. A set of swing rods are also connected to the U-shaped shafts. A guide rod passes through a triangular push plate seat, which is connected to a triangular push plate. At least one L-shaped connecting rod is rotatably connected to the triangular push plate seat. Limiting circular blocks are set within the area formed by the symmetrical semicircular grooves and symmetrical straight grooves. These limiting circular blocks are connected to cross blocks, which are set in their corresponding cross grooves. When the limiting circular blocks are in the semicircular grooves, the swing rods downwards, striking the aggregate on the conveyor belt. While maintaining contact with the conveyor belt, the rods cut the aggregate apart. When the swing rods upwards, it causes the aggregate to detach from the conveyor belt. The triangular push plate seat drives the triangular push plate to move close to the conveyor belt, causing the loose aggregate to contact the inclined surface of the triangular push plate, continuously accumulating and being discharged from the conveyor belt.

[0007] As an optimization, the four vertical rods of the lifting frame pass through the bottom plate of the moving box, and the lifting frame is connected to a set of insert rods. By setting the insert rods, the insert rods move along the height direction, insert into the residual aggregate on the conveyor belt for fixation, and cut apart the accumulated aggregate.

[0008] As an optimization, the lifting frame is connected to a movable slot, at least one end of which is connected to a spring. The spring surrounds the corresponding vertical rod of the lifting frame and is connected to the movable box. By setting the spring, the position of the insertion rod is maintained.

[0009] As an optimization, one of the cross blocks connects to a rack seat, the rack seat connects to a rack, the rack meshes with a gear, the gear connects to a crankshaft, the crankshaft bearing connects to the movable housing, the crankshaft connects to a swing rod, and the swing rod is disposed within the movable slot. By employing gear and rack meshing and disposing the swing rod within the movable slot, intermittent movement of the insertion rod is achieved.

[0010] As an optimization, the movable box is connected to symmetrical guide rods, which pass through loop blocks. Each loop block is connected to an L-shaped mounting bracket, which is then connected to a support plate. Symmetrical cross slots rotatably connect one end of a connecting rod, and the other end of each connecting rod rotatably connects to a corresponding loop block. By using support plates, the insert rod is positioned below the conveyor belt during movement, facilitating downward impact on the conveyor belt.

[0011] As an optimization, the movable box is connected to a motor, and the output shaft of the motor passes through the box wall and connects to a sliding rod. The limiting circular block is connected to a square block, and the square block is positioned within the sliding groove of the sliding rod. By using a motor to drive the movement of the insertion rod, the swinging insertion rod, and the triangular push plate, power support is provided.

[0012] As an optimization, the mobile frame assembly includes a mounting plate connected to symmetrical hydraulic rods, the piston rods of which are respectively connected to the mobile box. By employing hydraulic rods, the cleaning assembly can move along the height direction to achieve cleaning.

[0013] The effects described in the invention are merely those of the embodiments, and not all the effects of the invention. The above technical solutions have the following advantages or beneficial effects: 1. This device uses universal joints to connect the supply vehicles to each other and the construction vehicles, connecting the asphalt tank to the construction asphalt tank. Aggregate in the aggregate bin can be transferred to the construction aggregate bin, realizing the continuous transport of asphalt and aggregate from the supply vehicle to the construction vehicle, thus improving construction efficiency.

[0014] 2. This device employs a limiting circular block. When the limiting circular block is within the semi-circular groove, the swinging rod swings downwards, striking the aggregate on the conveyor belt. While maintaining contact with the conveyor belt, it cuts apart the aggregate. When the swinging rod swings upwards, it causes the aggregate to detach from the conveyor belt. When the limiting circular block is within the semi-circular groove, the support plate moves. Within the upper straight groove of the limiting circular block, the support plates move closer together, and the rod strikes the conveyor belt downwards, resulting in a more stable strike. The rod moves along the height direction, inserting into the remaining aggregate on the conveyor belt for fixation. As the conveyor belt moves, it cuts apart the accumulated aggregate. The triangular pusher moves close to the conveyor belt, causing the loose aggregate to contact the inclined surface of the triangular pusher, continuously accumulating and being discharged from the conveyor belt. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a connection diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the mobile frame assembly and cleaning assembly of the present invention.

[0018] Figure 3 This is a partial three-dimensional structural diagram of the cleaning component of the present invention. Figure 1 .

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the cleaning component of the present invention. Figure 1 .

[0020] Figure 5 This is a partial three-dimensional structural diagram of the cleaning component of the present invention. Figure 2 .

[0021] Figure 6 This is a partial three-dimensional structural diagram of the cleaning component of the present invention. Figure 3 .

[0022] Figure 7 This is a partial cross-sectional three-dimensional structural diagram of the cleaning component of the present invention. Figure 2 .

[0023] Figure 8 This is a three-dimensional structural diagram of the cleaning component of the present invention.

[0024] Figure 9 This is a partial three-dimensional structural diagram of the cleaning component of the present invention. Figure 2 .

[0025] In the picture: 1. Supply vehicle; 11. Vehicle body; 12. Asphalt tank; 13. Aggregate bin; 14. Discharge conveyor belt; 15. Transfer conveyor belt; 2. Construction vehicle; 21. Construction vehicle body; 22. Construction asphalt tank; 23. Construction aggregate bin; 24. Construction discharge conveyor belt; 3. Universal joint shaft; 4. Mobile frame assembly; 41. Mounting plate; 42. Hydraulic rod; 5. Cleaning components, 51. Moving box, 52. Guide vertical rod, 53. Square plate, 54. Guide short rod, 55. Straight groove, 56. Semi-circular groove, 57. Guide long rod, 58. Moving groove, 59. Swing rod, 510. Crankshaft, 511. Spring, 512. Gear, 513. Rack, 514. Rack seat, 515. Connecting rod, 516. U-shaped block, 517. L-mount bracket, 518. Support plate, 519. Insert rod, 520. Lifting frame, 521. Round block, 522. U-shaped shaft, 523. Swing insert rod, 524. Triangular push plate seat, 525. Triangular push plate, 526. L-connecting rod, 527. Slide groove, 528. Cross groove, 529. Slide groove rod, 530. Cross block, 531. Square block, 532. Limiting round block, 533. Motor. Detailed Implementation

[0026] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure of the invention, components and arrangements of specific examples are described below. Furthermore, reference numerals and / or letters may be repeated in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example 1: As Figures 1 to 9As shown, a preventive maintenance construction aggregate supply vehicle includes a supply vehicle 1, a mobile frame assembly 4, and a cleaning assembly 5. The supply vehicle 1 includes a vehicle body 11, which is connected to an asphalt tank 12 and an aggregate bin 13. A discharge conveyor belt 14 is installed inside the aggregate bin 13. The cleaning assembly 5 includes a mobile box 51, on one side of which are provided symmetrical straight grooves 55 and symmetrical semi-circular grooves 56. The two ends of the symmetrical semi-circular grooves 56 are respectively connected to the corresponding straight grooves 55. Guide vertical rods 52 are respectively connected to both sides of the mobile box 51. The mobile box 51 is connected to symmetrical square plates 53 and guide short rods 54. The two sets of symmetrical guide vertical rods 52 pass through cross grooves 528, and the symmetrical cross grooves 528 are respectively connected to... The slide groove 527 is symmetrically provided with circular blocks 521. The symmetrical circular blocks 521 are respectively connected to U-shaped shafts 522. The U-shaped shafts 522 are rotatably connected to the symmetrical square plates 53. The U-shaped shafts 522 are connected to a set of swing rods 523. The guide rod 54 passes through the triangular push plate seat 524. The triangular push plate seat 524 is connected to the triangular push plate 525. The U-shaped shaft 522 is rotatably connected to at least one L-shaped connecting rod 526. The L-shaped connecting rod 526 is rotatably connected to the triangular push plate seat 524. The symmetrical semi-circular groove 56 and the symmetrical straight groove 55 form an area with limiting circular blocks 532. The limiting circular blocks 532 are connected to cross blocks 530. The cross blocks 530 are set in the corresponding cross grooves 528. When the limiting block 532 is in the semi-circular groove 56, the swinging rod 523 swings downward to strike the aggregate on the conveyor belt. While maintaining contact with the conveyor belt, it cuts the aggregate apart. When the swinging rod 523 swings upward, it drives the aggregate to detach from the conveyor belt. The triangular push plate seat 524 drives the triangular push plate 525 to move closely to the conveyor belt, so that the loose aggregate contacts the inclined surface of the triangular push plate 525, accumulates continuously, and is discharged from the conveyor belt.

[0028] The movable box 51 is connected to a motor 533. The output shaft of the motor 533 passes through the box wall of the movable box 51 and connects to a sliding rod 529. The limiting circular block 532 is connected to a square block 531, which is disposed within the sliding groove of the sliding rod 529. The motor 533 provides power support for the movement of the insertion rod 519, the swinging insertion rod 523, and the triangular push plate 525.

[0029] The movable frame assembly 4 includes a mounting plate 41, which is connected to symmetrical hydraulic rods 42. The piston rods of the symmetrical hydraulic rods 42 are respectively connected to the movable box 51. By using hydraulic rods 42, the cleaning assembly 5 can move along the height direction to achieve cleaning.

[0030] The adjacent supply vehicles 1 are connected by a universal joint 3, and the supply vehicle 1 and the construction vehicle 2 are connected by the universal joint 3. By setting the universal joint 3, it is convenient to connect the supply vehicles 1 to each other and to the construction vehicle 2.

[0031] The construction vehicle 2 includes a construction vehicle body 21, which is connected to a construction asphalt tank 22 and a construction aggregate bin 23. A construction discharge conveyor belt 24 is installed inside the construction aggregate bin 23. Adjacent asphalt tanks 12 are connected via pipelines, and each construction asphalt tank 22 is connected to a corresponding asphalt tank 12 via a pipeline. The supply vehicle 1 is connected to a transfer conveyor belt 15, and the discharge conveyor belt 14 is matched with the transfer conveyor belt 15. The transfer conveyor belt 15 is connected to the corresponding vehicle body 11 or the construction vehicle body 21 via a bracket.

[0032] Each aggregate bin 13 is connected to the mounting plate 41 via a corresponding discharge conveyor belt 14. Each aggregate bin 13 and each construction aggregate bin 23 are connected to the mounting plate 41 via a corresponding transfer conveyor belt 15 through a bracket.

[0033] The workflow of this embodiment is as follows: During construction, the construction vehicle body 21 is operated to achieve the overall movement of the construction vehicle 2, universal joint shaft 3, and supply vehicle 1. The asphalt tank 12, aggregate bin 13, discharge conveyor belt 14, transfer conveyor belt 15, construction asphalt tank 22, construction aggregate bin 23, and construction discharge conveyor belt 24 are operated to transport asphalt in the asphalt tank 12 to the construction asphalt tank 22 through pipelines, and aggregates are transported from the aggregate bin 13 to the construction aggregate bin 23 through the discharge conveyor belt 14 and transfer conveyor belt 15, thus achieving material replenishment.

[0034] After the aggregate bin 13 is refilled, the hydraulic rod 42 is extended to move the cleaning component 5 downward, so that the triangular push plate 525 contacts the conveyor belt of the discharge conveyor belt 14 or the transfer conveyor belt 15, and the hydraulic rod 42 is closed. To control the conveyor belt movement, motor 533 is turned on. Motor 533 drives the slide bar 529 to rotate, which in turn drives the block 531 to swing. The block 531 drives the limiting block 532 to move along the area formed by the straight groove 55 and the semi-circular groove 56. The limiting block 532 drives the block 531 to move along the slide groove of the slide bar 529. The limiting block 532 drives the cross block 530 to move along the cross groove 528. When the limiting block 532 moves along the semi-circular groove 56, the cross block 530 drives the cross groove 528 to move along the guide rod 52. When the limiting block 532 moves along the straight groove 55, the cross groove 528 remains stationary. The cross groove 528 drives the slide 527 to move, and the slide 527 drives the block 531 to move. 21. Simultaneously, the oscillating block 521 moves along the chute 527, causing the U-shaped shaft 522 to oscillate. The U-shaped shaft 522 then oscillates the oscillating rod 523. When the limiting block 532 is within the semi-circular groove 56, the oscillating rod 523 oscillates downward, striking the aggregate on the conveyor belt. While maintaining contact with the conveyor belt, it cuts the aggregate apart. When the oscillating rod 523 oscillates upward, it causes the aggregate to detach from the conveyor belt. The U-shaped shaft 522 then oscillates the L-connecting rod 526. The L-connecting rod 526 then moves the triangular push plate seat 524 along the guide rod 54. The triangular push plate seat 524 then moves the triangular push plate 525 to move close to the conveyor belt, causing the loose aggregate to contact the inclined surface of the triangular push plate 525, continuously accumulating and being discharged from the conveyor belt.

[0035] Example 2: The four vertical rods of the lifting frame 520 pass through the bottom plate of the moving box 51, and the lifting frame 520 is connected to a set of insert rods 519. By setting the insert rods 519, the insert rods 519 move along the height direction, insert into the residual material on the conveyor belt for fixation, and cut apart the accumulated aggregate.

[0036] The lifting frame 520 is connected to the movable slot 58, and at least one end of the movable slot 58 is connected to a spring 511. The spring 511 surrounds the vertical rod corresponding to the lifting frame 520 and is connected to the movable box 51. By setting the spring 511, the position of the insertion rod 519 is maintained.

[0037] A cross block 530 is connected to a rack seat 514, the rack seat 514 is connected to a rack 513, the rack 513 meshes with a gear 512, the gear 512 is connected to a crankshaft 510, the crankshaft 510 is bearing-connected to the movable housing 51, the crankshaft 510 is connected to a swing rod 59, and the swing rod 59 is disposed within the movable slot 58. By employing gear and rack meshing and disposing the swing rod 59 within the movable slot 58, intermittent movement of the insertion rod 519 is achieved.

[0038] The workflow of this embodiment is as follows: The cross block 530 drives the rack seat 514 and rack 513 to move. When the limiting block 532 moves along the upper straight groove 55, the rack 513 meshes with the gear 512, causing the gear 512 to rotate. The gear 512 drives the crankshaft 510 to rotate, and the crankshaft 510 drives the swing rod 59 to move along the moving groove 58. The swing rod 59 drives the moving groove 58 to move, and the moving groove 58 drives the spring 511 to reciprocate through stretching, compression, and recovery. The moving groove 58 drives the lifting frame 520 and the insert rod 519 to reciprocate, so that the insert rod 519 contacts the transmission belt downwards, breaking up the clumps of aggregate. After the rack 513 disengages from the gear 512, the insert rod 519 moves away from the conveyor belt.

[0039] Example 3: The movable box 51 is connected to symmetrical guide rods 57. The symmetrical guide rods 57 pass through loop blocks 516, which are connected to L-mount brackets 517. The symmetrical L-mount brackets 517 are connected to support plates 518. Symmetrical cross grooves 528 are rotatably connected to one end of connecting rods 515, and the other end of the connecting rods 515 are rotatably connected to the corresponding loop blocks 516. By using support plates 518, the insertion rod 519 is positioned below the conveyor belt during movement, facilitating downward impact of the insertion rod 519 against the conveyor belt.

[0040] The workflow of this embodiment is as follows: When the limiting block 532 moves along the semicircular groove 56, the cross groove 528 drives the connecting rod 515 to swing. The connecting rod 515 drives the loop block 516 to move along the guide rod 57. The loop block 516 drives the L-mount frame 517 and the support plate 518 to move. When the limiting block 532 moves away from the semicircular groove 56 of the mounting plate 41, the two support plates 518 move closer to each other. When the limiting block 532 moves along the upper straight groove 55, the support plates 518 remain close to each other, which makes it convenient for the insertion rod 519 to strike the conveyor belt downward.

[0041] This device uses a universal joint shaft 3 to connect the supply vehicles 1 to each other and the construction vehicle 2, so that the asphalt tank and the construction asphalt tank can be connected. The aggregate in the aggregate bin can be transferred to the construction aggregate bin, realizing the transportation of asphalt and aggregate from the supply vehicle 1 to the construction vehicle 2, achieving continuous operation and improving construction efficiency.

[0042] This device employs a limiting block 532. When the limiting block 532 is within the semi-circular groove 56, the swinging rod 523 swings downward, striking the aggregate on the conveyor belt and maintaining contact with the conveyor belt while cutting the aggregate apart. When the swinging rod 523 swings upward, it causes the aggregate to detach from the conveyor belt. When the limiting block 532 is within the semi-circular groove 56, the support plate 518 moves. Within the upper straight groove 55 of the limiting block 532, the support plates 518 move closer to each other, and the rod 519 strikes the conveyor belt downward, making the strike more stable. The rod 519 moves along the height direction, inserting into the remaining aggregate on the conveyor belt for fixation. As the conveyor belt moves, it cuts apart the accumulated aggregate. The triangular push plate 525 moves closely to the conveyor belt, causing the loose aggregate to contact the inclined surface of the triangular push plate 525, continuously accumulating and being discharged from the conveyor belt.

[0043] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A preventative maintenance construction aggregate supply vehicle, characterized in that: Includes a supply vehicle (1), a mobile frame assembly (4), and a cleaning assembly (5); The supply vehicle (1) includes a vehicle body (11), which is connected to an asphalt tank (12) and an aggregate bin (13). The aggregate bin (13) is equipped with a discharge conveyor belt (14). The cleaning component (5) includes a movable box (51). The movable box (51) has a symmetrical straight groove (55) and a symmetrical semi-circular groove (56) on one side. The two ends of the symmetrical semi-circular groove (56) are respectively connected to the corresponding straight groove (55). The movable box (51) is connected to guide rods (52) on both sides. The movable box (51) is connected to a symmetrical square plate (53). The movable box (51) is connected to a guide rod (54). Two sets of symmetrical guide rods (52) pass through cross grooves (528) respectively. The symmetrical cross grooves (528) are connected to slide grooves (527) respectively. Circular blocks (521) are respectively provided in the symmetrical slide grooves (527). The symmetrical circular blocks (521) are respectively connected to U-shaped shafts (522). The U-shaped shafts (522) are rotatably connected to the symmetrical square plates (53). The U-shaped shafts (522) are connected to a set of swing rods (523). The guide rod (54) passes through the triangular push plate seat (524), the triangular push plate seat (524) is connected to the triangular push plate (525), the U-shaped shaft (522) is rotatably connected to at least one L-link (526), ​​and the L-link (526) is rotatably connected to the triangular push plate seat (524). A limiting circular block (532) is provided in the area formed by the symmetrical semicircular groove (56) and the symmetrical straight groove (55). The limiting circular block (532) is connected to the cross block (530). The cross block (530) is set in the corresponding cross groove (528). The four vertical rods of the lifting frame (520) pass through the bottom plate of the movable box (51) respectively, and the lifting frame (520) is connected to a set of plug rods (519). The lifting frame (520) is connected to the moving slot (58), at least one end of the moving slot (58) is connected to the spring (511), the spring (511) surrounds the vertical rod corresponding to the lifting frame (520), and the spring (511) is connected to the moving box (51). A cross block (530) is connected to a rack seat (514), the rack seat (514) is connected to a rack (513), the rack (513) meshes with a gear (512), the gear (512) is connected to a crankshaft (510), the crankshaft (510) is connected to a moving box (51) by a bearing, the crankshaft (510) is connected to a swing rod (59), the swing rod (59) is disposed in the moving groove (58); the moving box (51) is connected to a motor (533), the output shaft of the motor (533) passes through the box wall of the moving box (51) and is connected to a sliding rod (529), the limiting round block (532) is connected to a square block (531), the square block (531) is disposed in the sliding groove of the sliding rod (529).

2. The preventive maintenance construction aggregate supply vehicle according to claim 1, characterized in that: The movable box (51) is connected to symmetrical guide rods (57), which pass through the loop blocks (516) respectively. The loop blocks (516) are connected to L-mount brackets (517) respectively. The L-mount brackets (517) are connected to support plates (518) respectively. The symmetrical cross grooves (528) are rotatably connected to one end of the connecting rod (515), and the other end of the symmetrical connecting rod (515) is rotatably connected to the corresponding loop block (516).

3. The preventive maintenance construction aggregate supply vehicle according to claim 1, characterized in that: The mobile frame assembly (4) includes a mounting plate (41) connected to symmetrical hydraulic rods (42), and the piston rods of the symmetrical hydraulic rods (42) are respectively connected to the mobile box (51).

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