Air pipe installation method and device

Abstract

The invention provides an air duct mounting method and device, and belongs to the technical field of air duct mounting, the air duct mounting device comprises a vehicle body, a lifting unit, a supporting platform used for loading an air duct to be moved, a hydraulic connecting unit and a fork arm used for connecting the supporting platform and the lifting unit, and the hydraulic connecting unit is connected with a hydraulic system of the vehicle body; the hydraulic connecting unit comprises a first jacking assembly and a second jacking assembly. The first jacking assembly and the second jacking assembly each comprise two hydraulic jacks. And the limiting unit is used for fixing the air pipe on the supporting platform. By means of the hydraulic control system and the jacking assembly, the air pipe can be rapidly moved and positioned, and the labor intensity and time consumption of manual carrying are reduced. And the hydraulic system is used for lifting and moving the air pipe, so that the technical effects of reducing the risk of high-altitude operation and improving the operation safety are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of air duct installation, and particularly relates to an air duct installation method and a device thereof. Background Art

[0002] During the duct construction process, the installation quality of the duct is crucial to the operating efficiency and safety of the entire air delivery system. However, there are many problems with the existing duct installation methods. First, if the duct is not installed straight, it will affect the aesthetics of the structure and may lead to a series of problems such as reduced structural safety, reduced ventilation efficiency, and shortened service life. Secondly, due to the limited space for duct construction, large lifting equipment cannot be used, which limits the efficiency and safety of duct installation operations.

[0003] In existing technologies, the installation of air ducts usually relies on manual operation. Construction workers need to first set up two reliable hanging points at appropriate locations, and then hang fall chains on the hanging points. Next, the air duct needs to be manually tied and lifted and installed by the fall chains. This method not only consumes a lot of manpower, but also poses a threat to the safety of construction workers, and the installation efficiency is relatively low.

[0004] Therefore, there is an urgent need for a safe and efficient air duct installation method and device. Summary of the invention

[0005] The present invention provides an air duct installation method and a device thereof, which are used to overcome at least one technical problem existing in the prior art.

[0006] To achieve the above object, the present invention provides an air duct installation device, comprising:

[0007] The car body is used to drive the displacement of the air duct;

[0008] A lifting unit is arranged on the vehicle body and is used to drive the air duct to rise and fall; a fork arm is arranged on the lifting unit and extends forward;

[0009] A support platform for loading the duct to be moved;

[0010] A hydraulic connection unit is used to connect the support platform and the fork arm, and the hydraulic connection unit is connected to the hydraulic system of the vehicle body; wherein the hydraulic connection unit comprises a jacking assembly 1 and a jacking assembly 2; the front end of the jacking assembly 1 is rotationally connected to the side of the support platform away from the vehicle body; the rear end of the jacking assembly 1 is rotationally connected to the side of the fork arm away from the vehicle body; the front end of the jacking assembly 2 is rotationally connected to the side of the support platform close to the vehicle body; the rear end of the jacking assembly 2 is rotationally connected to the side of the fork arm close to the vehicle body; the jacking assembly 1 and the jacking assembly 2 respectively comprise two hydraulic jacks;

[0011] The limiting unit is used to fix the air duct on the supporting platform.

[0012] Furthermore, a preferred structure is that the support platform includes two longitudinal support rods and a transverse connecting rod arranged between the two longitudinal support rods; the two longitudinal support rods are arranged along the forward direction of the vehicle body.

[0013] Further, a preferred structure is that the limiting unit includes a sliding rail arranged on the longitudinal support rod, a sliding positioning block arranged in the sliding rail; and a locking piece arranged corresponding to the sliding positioning block; and a connecting structure fixed to the air duct is arranged on the sliding positioning block.

[0014] Furthermore, a preferred structure is that a fixing hole is provided on the connection structure, and an angle steel fixing hole corresponding to the fixing hole is provided on the edge protection angle steel of the air duct.

[0015] Furthermore, a preferred structure is that the connection structure includes a horizontal connection part and a vertical connection part; a slider connection hole is provided on the horizontal connection part; a fixing hole is provided on the vertical connection part; and the horizontal connection part and the vertical connection part are an L-shaped integrated structure.

[0016] Furthermore, a preferred structure is that the jacking assembly 1 is detachably connected to the fork arm via bolts; and the jacking assembly 2 is detachably connected to the fork arm via bolts.

[0017] Furthermore, a preferred structure is that reinforcing ribs are provided between the transverse connectors; the first lifting component is detachably connected to the reinforcing ribs via bolts; and the second lifting component is detachably connected to the reinforcing ribs via bolts.

[0018] Furthermore, a preferred structure is that a concave surface for accommodating the air duct is provided on the supporting platform.

[0019] Furthermore, a preferred structure also includes a hydraulic control system for controlling the actions of the lifting unit, lifting component one and lifting component two.

[0020] In order to solve the above problems, the present invention also provides a method for installing an air duct, the method comprising:

[0021] Fix the air duct on the supporting platform through the limiting unit;

[0022] The jacking assembly 2 arranged close to the vehicle body is started by the hydraulic control system, and the two jacks of the jacking assembly 2 are retracted, and the support platform moves upward with the jacking assembly 1 arranged away from the vehicle body as the axis until the support platform approaches the vehicle body; wherein the jacking assembly 1 and the jacking assembly 2 are connected to the hydraulic system of the vehicle body;

[0023] Control the lifting unit through a hydraulic control system to drive the support platform and the air duct to rise to the highest position of the lifting unit;

[0024] The hydraulic control system controls the jacking assembly 1 and the jacking assembly 2 to drive the support platform and the air duct to rise until they reach the air duct installation height, so as to install the air duct.

[0025] The air duct installation method and device provided by the present invention have the following beneficial effects: by using a hydraulic control system and a lifting assembly, the air duct can be quickly moved and positioned, reducing the labor intensity and time consumption of manual handling. By using a hydraulic system to lift and move the air duct, the risk of high-altitude operations can be reduced and the safety of the operation can be improved. By accurately controlling the extension and contraction of the hydraulic jack, the air duct can be accurately positioned to ensure the quality and accuracy of the air duct installation. The device can adapt to air ducts of different sizes and weights and has good versatility and adaptability. Through the hydraulic control system, the operator can easily control the movement and lifting of the air duct, simplifying the operation process. Compared with a pure mechanical system, the hydraulic system can provide a more stable and reliable power output and reduce work interruptions caused by mechanical failures. The device can be used in different construction site environments, is not restricted by the site, and improves the flexibility of air duct installation. The high degree of automation reduces the dependence on professional installation workers and reduces labor costs. By improving installation efficiency and reducing maintenance costs, better economic benefits can be brought to the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of a flow chart of a method for installing an air duct provided in one embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the overall structure of an air duct installation device provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the structure of a support platform of an air duct installation device provided in one embodiment of the present invention;

[0030] Figure 4 Another structural schematic diagram of a support platform of an air duct installation device provided in one embodiment of the present invention;

[0031] Figure 5 A schematic structural diagram of a connection structure of an air duct installation device provided in one embodiment of the present invention.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0034] Figure 1 The duct installation method is described in general. Figure 1 A schematic flow chart of a method for installing an air duct according to an embodiment of the present invention.

[0035] like Figure 1 As shown, in this embodiment, the air duct installation method includes steps S110 to S140.

[0036] S110. Fix the air duct on the supporting platform through the limiting unit.

[0037] S120. Start the jacking assembly 2 arranged close to the vehicle body through the hydraulic control system, and the two jacks of the jacking assembly 2 are retracted, and the support platform moves upward with the jacking assembly 1 arranged away from the vehicle body as the axis until the support platform approaches the vehicle body; wherein the jacking assembly 1 and the jacking assembly 2 are connected to the hydraulic system of the vehicle body.

[0038] S130, controlling the lifting unit through a hydraulic control system to drive the supporting platform and the air duct to rise to the highest position of the lifting unit.

[0039] S140, controlling the jacking assembly 1 and the jacking assembly 2 through the hydraulic control system to drive the support platform and the air duct to rise until they reach the air duct installation height, and then installing the air duct.

[0040] Specifically, the air duct installation method of the present invention can quickly move and position the air duct by using a hydraulic control system and a lifting assembly, thereby reducing the labor intensity and time consumption of manual handling. The use of a hydraulic system to lift and move the air duct can reduce the risk of high-altitude operations and improve operational safety. A support platform is provided on the lifting unit of the vehicle body through lifting assemblies 1 and 2. When the lifting height limit of the lifting unit of the vehicle body is reached, the lifting assemblies 1 and 2 are lifted again to increase the height to which the air duct can reach.

[0041] Figure 2-Figure 5 The air duct installation device of the present invention is generally described. Figure 2A schematic diagram of the overall structure of an air duct installation device provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a support platform of an air duct installation device provided in one embodiment of the present invention; Figure 4 Another structural schematic diagram of a support platform of an air duct installation device provided in one embodiment of the present invention; Figure 5 A schematic structural diagram of a connection structure of an air duct installation device provided in one embodiment of the present invention.

[0042] like Figure 2 As shown, the air duct installation device includes a car body 1 for driving the displacement of the air duct; a lifting unit 2, which is arranged on the car body 1 and is used to drive the lifting of the air duct; a fork arm is extended forward on the lifting unit 2; a support platform 4 for loading the air duct to be moved; a hydraulic connection unit, which is used to connect the support platform and the fork arm, and the hydraulic connection unit is connected to the hydraulic system of the car body; wherein the hydraulic connection unit includes a lifting component 1 41 and a lifting component 2 42; the front end of the lifting component 1 41 is rotatably connected to the side of the support platform away from the car body; the rear end of the lifting component 1 41 is rotatably connected to the side of the fork arm away from the car body; the front end of the lifting component 2 42 is rotatably connected to the side of the support platform close to the car body; the rear end of the lifting component 2 42 is rotatably connected to the side of the fork arm close to the car body; the lifting component 1 and the lifting component 2 respectively include two hydraulic jacks; a limiting unit 5 is used to fix the air duct on the support platform. It also includes a hydraulic control system for controlling the actions of the lifting unit, the lifting assembly 1 and the lifting assembly 2. The duct installation device of the present invention can quickly move and position the duct by using the hydraulic control system and the lifting assembly, thereby reducing the labor intensity and time consumption of manual handling.

[0043] Specifically, a support platform is arranged on the lifting unit of the vehicle body through the jacking assembly 1 and the jacking assembly 2. When the lifting height limit of the lifting unit of the vehicle body is reached, the jacking assembly 1 and the jacking assembly 2 are raised again to raise the height that the air duct can reach. The hydraulic connection unit includes a jacking assembly 1 41 and a jacking assembly 2 42; the front end of the jacking assembly 1 41 is rotationally connected to the side of the support platform away from the vehicle body; the rear end of the jacking assembly 1 41 is rotationally connected to the side of the fork arm away from the vehicle body; the front end of the jacking assembly 2 42 is rotationally connected to the side of the support platform close to the vehicle body; the rear end of the jacking assembly 2 42 is rotationally connected to the side of the fork arm close to the vehicle body. In other words, by arranging the jacking assembly 2 42 on the side of the support platform 4 close to the vehicle body 1, the jacking assembly 1 41 is arranged on the side of the support platform 4 away from the vehicle body 1. The jacking assembly 1 and jacking assembly 2 respectively include two hydraulic jacks, that is, four hydraulic jacks are hingedly arranged at the bottom of the support platform, two on the left side and two on the right side; relative to the forward direction of the vehicle body, the hydraulic jack on the left front side and the hydraulic jack on the right front side constitute the jacking assembly 1 41. The hydraulic jack on the left rear side and the hydraulic jack on the right rear side constitute the jacking assembly 2 42.

[0044] For the hydraulic connection unit composed of the jacking component 1 41 and the jacking component 2 42, two groups of actions can be completed. The specific description is as follows: First, the support platform 4 should be in the initial position where the air duct is to be placed; wherein, the initial position is that the support platform 4 is stacked on the top of the fork arm, and when the support platform 4 is in the initial position, the two hydraulic jacks of the jacking component 1 and the two hydraulic jacks of the jacking component 2 are all in a horizontal state with the fork arm, that is, the hydraulic jacks, the fork arm and the support platform are all in a horizontal plane approximately parallel to the ground. Then, the air duct is fixed to the support platform 4 through the limit unit 5. The two hydraulic jacks of the jacking component 1 and the two hydraulic jacks of the jacking component 2 are to start to complete the first action of approaching the vehicle body. That is, the two jacks of the jacking assembly 2 are retracted, and the two hydraulic jacks of the jacking assembly 1 are not started. The two hydraulic jacks of the jacking assembly 1 only serve as the support shaft at the bottom of the support plane, that is, the two jacks of the jacking assembly 2 are retracted, and the support platform moves upward with the jacking assembly 1 set away from the vehicle body as the axis until the support platform approaches the vehicle body; in this process, the two hydraulic jacks of the jacking assembly 1 and the two hydraulic jacks of the jacking assembly 2 have completed the change from a horizontal state to a state perpendicular to the plane where the fork arm and the support platform are located. After the lifting unit is controlled by the hydraulic control system to drive the support platform and the air duct to rise to the highest position of the lifting unit, the two hydraulic jacks of the jacking assembly 1 and the two hydraulic jacks of the jacking assembly 2 will start to complete the first rising action. The hydraulic control system controls the jacking assembly 1 and the jacking assembly 2 to drive the support platform and the air duct to rise until they reach the air duct installation height, and then the air duct is installed.

[0045] Of course, when it is necessary to move the air duct from a high place to a low place, the hydraulic control system first controls the fork arm of the lifting unit to descend to the lowest position, and then the hydraulic control system controls the jacking assembly 1 and the jacking assembly 2 to drive the support platform and the air duct to shrink the cylinder until the preset height is reached. The two hydraulic jacks of the jacking assembly 1 and the two hydraulic jacks of the jacking assembly 2 will start to complete the action of moving away from the vehicle body; that is, the two jacks of the jacking assembly 1 are used to lift the cylinder, and the two hydraulic jacks of the jacking assembly 2 are not started. The two hydraulic jacks of the jacking assembly 2 only serve as the support shaft at the bottom of the support plane, that is, the two jacks of the jacking assembly 1 are used to lift the cylinder, and the support platform moves downward with the jacking assembly 2 set away from the vehicle body as the axis until the support platform is close to the plane where the fork arm is located.

[0046] Among them, in a specific embodiment, the vehicle body 1 is used to drive the displacement of the air duct; the lifting unit 2 is used to drive the lifting of the air duct, and the lifting unit is arranged on the vehicle body 1; and a fork arm is arranged on the lifting unit 2 and extends forward. The vehicle body, the lifting unit and the fork arm can be specifically implemented by an existing forklift. The lifting cylinder is started to move the piston rod in the cylinder upward. The rise of the piston rod drives the main column outside the sprocket beam to rise synchronously. The sprocket lifting chain moves accordingly, pulling the square lifting fork frame. The square lifting fork frame realizes the lifting of the fork arm by connecting the box-shaped fork beam and the fork slide. The process of lowering the fork arm: by adjusting the lifting system, the potential energy of some components is reduced. The reduction of potential energy causes the piston rod to move downward. It should be noted that the other end of the chain pull rod is fixed on the front axle, and this part remains stationary during the whole process. The descent of the piston rod drives the fork arm to descend, realizing the descending action of the fork arm.

[0047] The hydraulic system is responsible for the lifting and lowering of the fork arm, the loading and unloading of goods, and the two hydraulic jacks of the jacking component one and the two hydraulic jacks of the jacking component two. The hydraulic control system usually includes: Hydraulic transmission: using liquid to transmit pressure and power to achieve the lifting and lowering of the fork arm and the lifting and lowering of goods. Hydraulic control: by controlling the valves, oil pumps and other components in the hydraulic system, the control and regulation of the hydraulic system are realized. Hydraulic pump: through mechanical movement to generate pressure, push the liquid into the hydraulic cylinder to generate thrust. Hydraulic cylinder: actuator, the input is the flow of pressure oil, and the output is the movement speed or displacement. Hydraulic pipeline: transmit hydraulic energy and control hydraulic flow to ensure the normal operation of the hydraulic system. Hydraulic valve: control the direction, pressure and flow of hydraulic flow to achieve control of the hydraulic system. Among them, the working process of the hydraulic control system for the hydraulic jack can include the pump suction process: by lifting the lever handle, the small piston is driven upward to form a partial vacuum, and the oil in the oil tank flows into the pump body under the action of atmospheric pressure. The process of pumping oil and lifting heavy objects: Press down the lever handle, the small piston moves down, the oil is squeezed out, pushes open the oil discharge check valve, enters the hydraulic cylinder, pushes the large piston up, and lifts the heavy object. The process of falling heavy objects: Open the oil discharge valve, the oil in the hydraulic cylinder flows back to the oil tank, and the large piston descends.

[0048] like Figure 3 and Figure 4As shown, the support platform 4 includes two longitudinal support rods 41 and a transverse connecting rod 42 arranged between the longitudinal support rods 41; the longitudinal support rods 41 are arranged in a direction parallel to the forward direction of the vehicle body 1. The limiting unit 5 includes a slide rail 51 arranged on the longitudinal support rod 41, a sliding positioning block arranged in the slide rail 51; and a locking member arranged corresponding to the sliding positioning block; a connecting structure 52 fixed to the air duct is arranged on the sliding positioning block. Specifically, two slide rails are arranged on each longitudinal support rod, or one slide rail has two sliders, and each slider is connected to a corresponding connecting structure 52. For example, a left front slide rail and a left rear slide rail are arranged on the left longitudinal support rod; the connecting structure corresponding to the slider on the left front side is connected and fixed to the edge protection angle steel on the left front side of the air duct.

[0049] Further, a preferred structure is that a reinforcing rib is provided between the transverse connectors; the first lifting component is detachably connected to the reinforcing rib by bolts; the second lifting component is detachably connected to the reinforcing rib by bolts. The first lifting component is detachably connected to the fork arm by bolts; the second lifting component is detachably connected to the fork arm by bolts.

[0050] Furthermore, as a preferred embodiment, in order to make the air duct installation device of the present invention applicable to circular air ducts in addition to square air ducts, a concave surface for accommodating the air duct is provided on the support platform. The reinforcing ribs 43 and the transverse connecting rods 42 of the support platform 4 form a concave surface for enhancing the structural strength and shape stability of the concave surface. In other words, when the air duct to be installed is a square air duct, a flat support platform is used; when the air duct to be installed is a circular air duct, a concave support platform is used. Because the support platform is detachably mounted on a vehicle body with a lifting unit, the corresponding support platform can be selected according to the type of air duct to be installed.

[0051] In addition, the support platform 4 can be adjustable to meet the requirements of accommodating air ducts of different sizes. The longitudinal support rod 41 and the transverse connecting rod 42 are connected by an adjustable connector 44 to achieve the size adjustment of the support platform 4. The present invention provides a support platform with high structural strength, good shape stability and adjustability to meet the installation requirements of air ducts of different sizes, while reducing the difficulty of construction, improving work efficiency, and effectively shortening the construction period. By arranging reinforcing ribs and adjustable connectors on the support platform, the present invention can provide a more stable and flexible air duct support solution, thereby reducing the safety risks of high-altitude operations.

[0052] like Figure 5As shown, a fixing hole 523 is provided on the connection structure 52, and an angle steel fixing hole corresponding to the fixing hole 523 is provided on the edge protection angle steel of the air duct. The connection structure 52 includes a horizontal connection part 522 and a vertical connection part 521; a slider connection hole is provided on the horizontal connection part 522; a fixing hole 523 is provided on the vertical connection part 521; the horizontal connection part and the vertical connection part are an L-shaped integrated structure. That is to say, the slider connection hole of the connection structure 52 is first fixedly connected with the slider of the limit unit 5, and the specific connection method can be screw connection. Then, after the angle steel fixing hole of the edge protection angle steel of the air duct corresponds to the fixing hole 523, it is fixed by bolts.

[0053] In summary, by using the hydraulic control system and jacking components, the air duct can be quickly moved and positioned, reducing the labor intensity and time consumption of manual handling. The use of hydraulic systems to lift and move the air duct can reduce the risk of high-altitude operations and improve the safety of operations. By accurately controlling the extension and contraction of the hydraulic jack, the air duct can be accurately positioned to ensure the quality and accuracy of the air duct installation. The device can adapt to air ducts of different sizes and weights, and has good versatility and adaptability. Through the hydraulic control system, the operator can easily control the movement and lifting of the air duct, simplifying the operation process. Compared with pure mechanical systems, hydraulic systems can provide more stable and reliable power output, reducing work interruptions caused by mechanical failures. The device can be used in different construction site environments, without being restricted by the site, and improves the flexibility of air duct installation. The high degree of automation reduces the dependence on professional installation workers and reduces labor costs. By improving installation efficiency and reducing maintenance costs, it can bring better economic benefits to the project.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0055] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any attached figure mark in the claims should not be regarded as limiting the claims involved.

[0056] In addition, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or systems stated in a system claim can also be implemented by one unit or system through software or hardware. Secondary words are used to indicate names, but not to indicate any particular order.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A duct installation device, characterized in that: include, The car body is used to drive the displacement of the air duct; A lifting unit is arranged on the vehicle body and is used to drive the air duct to rise and fall; a fork arm is arranged on the lifting unit and extends forward; A support platform for loading the duct to be moved; A hydraulic connection unit is used to connect the support platform and the fork arm, and the hydraulic connection unit is connected to the hydraulic system of the vehicle body; wherein the hydraulic connection unit comprises a jacking assembly 1 and a jacking assembly 2; the front end of the jacking assembly 1 is rotationally connected to the side of the support platform away from the vehicle body; the rear end of the jacking assembly 1 is rotationally connected to the side of the fork arm away from the vehicle body; the front end of the jacking assembly 2 is rotationally connected to the side of the support platform close to the vehicle body; the rear end of the jacking assembly 2 is rotationally connected to the side of the fork arm close to the vehicle body; the jacking assembly 1 and the jacking assembly 2 respectively comprise two hydraulic jacks; The limiting unit is used to fix the air duct on the supporting platform.

2. The air duct installation device according to claim 2, characterized in that: The support platform includes two longitudinal support rods and a transverse connecting rod arranged between the two longitudinal support rods; the two longitudinal support rods are arranged along the forward direction of the vehicle body.

3. The air duct installation device according to claim 2, characterized in that: The limiting unit includes a slide rail arranged on the longitudinal support rod, a sliding positioning block arranged in the slide rail, and a locking member arranged corresponding to the sliding positioning block; a connecting structure fixed to the air duct is arranged on the sliding positioning block.

4. The air duct installation device according to claim 3, characterized in that: A fixing hole is arranged on the connection structure, and an angle steel fixing hole corresponding to the fixing hole is arranged at the edge protection angle steel position of the air duct.

5. The air duct installation device according to claim 3, characterized in that: The connection structure includes a horizontal connection part and a vertical connection part; a slider connection hole is arranged on the horizontal connection part; a fixing hole is arranged on the vertical connection part; the horizontal connection part and the vertical connection part are an L-shaped integrated structure.

6. The air duct installation device according to claim 1, characterized in that: The jacking assembly 1 is detachably connected to the fork arm via bolts; and the jacking assembly 2 is detachably connected to the fork arm via bolts.

7. The air duct installation device according to claim 2, characterized in that: Reinforcement ribs are arranged between the transverse connectors; the first jacking component is detachably connected to the reinforcement ribs via bolts; and the second jacking component is detachably connected to the reinforcement ribs via bolts.

8. The air duct installation device according to claim 1, characterized in that: A concave surface for accommodating the air duct is arranged on the supporting platform.

9. The air duct installation device according to claim 1, characterized in that: It also includes a hydraulic control system for controlling the actions of the lifting unit, the jacking component one and the jacking component two.

10. A method for installing an air duct, characterized in that: Methods include, Fix the air duct on the supporting platform through the limiting unit; The jacking assembly 2 arranged close to the vehicle body is started by the hydraulic control system, and the two jacks of the jacking assembly 2 are retracted, and the support platform moves upward with the jacking assembly 1 arranged away from the vehicle body as the axis until the support platform approaches the vehicle body; wherein the jacking assembly 1 and the jacking assembly 2 are connected to the hydraulic system of the vehicle body; Control the lifting unit through a hydraulic control system to drive the support platform and the air duct to rise to the highest position of the lifting unit; The hydraulic control system controls the jacking assembly 1 and the jacking assembly 2 to drive the support platform and the air duct to rise until they reach the air duct installation height, so as to install the air duct.

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