Mounting frame for air duct of pesticide spraying vehicle

Abstract

The utility model relates to the technical field of mounting racks, and particularly discloses a mounting rack for an air duct of a pesticide spraying vehicle. The mounting rack comprises a mounting rack body, the mounting rack body comprises a supporting piece, the supporting piece comprises a first mounting base arranged in the width direction of the pesticide spraying vehicle, and a first moving piece and a second moving piece which are used for mounting an air duct and are of the same structure are arranged above the first mounting base; a driving device is arranged at the first mounting seat, and is used for pushing the first moving part and the second moving part to move towards each other or back to back along the length direction of the first mounting seat; a jacking device is arranged below the first mounting base and used for pushing the first mounting base to ascend or descend. And liquid medicine suitable for crops and fruit trees with different heights can be sprayed, and waste of the liquid medicine is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mounting bracket technology, and more specifically, to a mounting bracket for the ventilation duct of a spraying vehicle. Background Technology

[0002] During the growth of crops and fruit trees, manual spraying of pesticides is often required. Currently, most manual spraying is done using spraying trucks. These trucks consist of a vehicle body, a pesticide tank mounted on the body, and a wind tunnel mounting frame. However, most wind tunnel mounting frames are fixed structures, which have several drawbacks. For example, fixed supports are difficult to adapt to the spraying needs of crops at different heights and the spraying spacing requirements along roads of different widths, leading to reduced spray coverage or pesticide waste. Utility Model Content

[0003] This utility model provides a mounting bracket for the ventilation duct of a spraying vehicle, which can overcome some or all the defects of the prior art.

[0004] According to the present invention, a mounting bracket for a spraying truck ventilation duct includes: a mounting bracket body, the mounting bracket body including a support member, the support member including a first mounting seat arranged along the width direction of the spraying truck, a first moving member and a second moving member with the same structure for mounting the ventilation duct above the first mounting seat; a driving device is provided at the first mounting seat, the driving device being used to push the first moving member and the second moving member to move towards or away from each other along the length direction of the first mounting seat; a lifting device is provided below the first mounting seat, the lifting device being used to push the first mounting seat up or down.

[0005] With this invention, the installer first fixes the main body of the mounting frame onto the spraying vehicle by passing bolts through the bolt holes on the connecting feet at both ends of the second mounting base. Then, during the use of the spraying vehicle, the operator adjusts the overall height of the mounting frame according to the height of the crops or fruit trees at different stages. During adjustment, the operator first starts the second motor, which drives the second threaded rod to rotate. As the second threaded rod rotates, the threads on it push the second guide block at one end of the first support rod and the fourth guide block at the other end of the second support rod to move along the second mounting groove. The second and fourth guide blocks are respectively provided with oppositely arranged threads. The second and third threaded holes allow the second threaded rod to drive the second and fourth guide blocks to move in opposite directions. During this movement, the first and second support rods rotate along their intersection, causing the third and first guide blocks to move along the third mounting groove. The first and second support rods also lift the support component, causing the first and second moving parts to move upwards, thus raising the air ducts on them. This allows workers to easily adjust the height of the mounting frame, enabling the air ducts installed on the frame to spray pesticides suitable for crops and fruit trees at different heights, avoiding pesticide waste.

[0006] When the pesticide spraying truck encounters roads of varying widths, the crops or fruit trees on both sides of the road need to be sprayed with pesticide. At this time, the staff starts the first motor, which drives the first threaded rod to rotate. The rotation of the first threaded rod pushes the sliding block under the first and second moving parts to move in opposite directions or away from each other along the first mounting groove. This allows the staff to adjust the distance between the first and second moving parts, thereby adjusting the distance at which the air ducts on the first and second moving parts spray the pesticide, preventing waste during spraying. At the same time, the mounting frame on the pesticide spraying truck can adapt to roads of different widths.

[0007] Preferably, the first mounting base has a first mounting groove along the length of the first mounting base at its end face near the first moving member; the first moving member and the second moving member include a first upright and a second upright parallel to the first upright; one end of the second upright is bent to form a curved portion and connected to one end of the first upright; the other end of the second upright is provided with a connecting rod for connecting the first upright and the second upright; both ends of the connecting rod are provided with sliding blocks extending into the first mounting groove; the sliding blocks are provided with first threaded holes; the driving device includes a first threaded rod disposed in the first mounting groove and arranged along the length of the first mounting groove, the first threaded rod passing through the first threaded hole and engaging with the first threaded hole on the sliding block; one end of the first mounting base is provided with a first motor for driving the first threaded rod to rotate.

[0008] With this utility model, during the rotation of the first threaded rod driven by the first motor, the sliding block below the first moving part and the second moving part slides along the first mounting groove. The first mounting groove limits the sliding block, so that the first moving part and the second moving part can move more stably in opposite directions or in opposite directions. One end of the first mounting base extends outward to form a first placement plate for preventing the first motor from moving. The operator fixes the first motor support foot to the first placement plate with bolts.

[0009] Preferably, the lifting device includes a second mounting base arranged along the length direction of the first mounting base, and a second mounting groove arranged along the length direction of the second mounting base is provided at one end face of the second mounting base near the first mounting base; a third mounting groove arranged along the length direction of the first mounting base is provided at the lower end face of the first mounting base.

[0010] With this invention, when the second threaded rod is driven to rotate by the second motor and the second threaded rod pushes the fourth guide block and the second guide block to slide in the second mounting groove, the second mounting groove limits the fourth guide block and the second guide block, preventing the lifting device from becoming unstable when the fourth guide block and the second guide block move; when the third guide block and the first guide block slide in the third mounting groove, the third mounting groove limits the third guide block and the first guide block, which can improve the stability of the third guide block and the first guide block when they move.

[0011] Preferably, a first support rod and a second support rod are provided between the first mounting base and the second mounting base, and the first support rod and the second support rod are arranged crosswise; the first support rod and the second support rod are rotatably connected at the intersection point; the first support rod has a first guide block extending into the third mounting groove and a second guide block extending into the second mounting groove at both ends; the first guide block and the second guide block are respectively hinged to the two ends of the first support rod; the first guide block has a first through hole penetrating the first guide block, and the second guide block has a second threaded hole penetrating the second guide block;

[0012] The second support rod has a third guide block extending into the third mounting groove and a fourth guide block extending into the second mounting groove at both ends. The third guide block and the fourth guide block are respectively hinged to both ends of the second support rod. The third guide block has a second through hole, and the fourth guide block has a third threaded hole. The second mounting groove has a second threaded rod arranged along the length of the second mounting groove. The second threaded rod passes through the second threaded hole and the third threaded hole and is threadedly engaged with the second threaded hole and the third threaded hole. One end of the second mounting base has a second motor for driving the second threaded rod to rotate.

[0013] In this invention, a screw passes through the first support rod and the second support rod at the intersection point, and is then fixed by a nut, so that the first support rod and the second support rod can rotate along the screw.

[0014] The second mounting base extends outward at one end to form a second placement plate. The mounting feet below the second motor are fixed to the second placement plate with screws, making it convenient for installers to install the second motor.

[0015] Preferably, the third mounting groove is provided with a first guide rod arranged along the length of the third mounting groove, and the first guide rod passes through the first through hole and the second through hole.

[0016] With this invention, when the third guide block and the first guide block move in the third mounting groove, the third guide block and the first guide block also move along the first guide rod. The first guide rod can prevent the third guide block and the first guide block from dislodging from the third mounting groove; at the same time, it can also improve the stability of the third guide block and the first guide block when they move.

[0017] Preferably, a spring fitted on the first guide rod is provided between the third guide block and one end sidewall of the third mounting groove, and between the first guide block and the other end sidewall of the third mounting groove.

[0018] With this invention, the spring constantly presses against the third guide block and the first guide block, thereby preventing the support member from sliding relative to the first guide block when it moves with the third mounting groove.

[0019] Preferably, a column perpendicular to the first mounting base is provided between the first movable member and the second movable member, and multiple second guide rods extending towards the first movable member and the second movable member are provided at the side walls of both ends of the column; multiple hollow sleeves connecting the first column and the second column are provided between the first column and the second column, and a guide hole communicating with the hollow sleeve is provided at the side wall of the first column, and the second guide rods extend into the hollow sleeve through the guide hole.

[0020] With this invention, when the first moving part and the second moving part move toward each other or away from each other, the second guide rods at both ends of the column extend into the hollow sleeve and move back and forth, so that when the first moving part and the second moving part move, the second guide rods can better improve the stability of the first moving part and the second moving part during movement.

[0021] Preferably, the second upright has multiple fixing components on its side wall for fixing the air duct, and the multiple fixing components are spaced apart along the length of the second upright. The fixing components include a fastening sleeve that is fixedly connected to the second upright, and the fastening sleeve has multiple pin holes distributed circumferentially on its side wall. A connecting post is provided above the fastening sleeve and extends into the fastening sleeve. The connecting post has blind pin holes on its side wall that correspond to the pin holes. A circular plate is provided at the end of the connecting post away from the fastening sleeve, and a clamp for fixing the air duct is provided on the circular plate.

[0022] With this invention, when installing the ventilation duct, the installer fixes the duct to the clamp, and then rotates the circular plate according to the height of the crops or fruit trees so that the blind hole of the pin on the connecting column corresponds to the pin hole on the fastening sleeve. Finally, the pin is inserted into the blind hole through the pin hole to fix the connecting column, which also fixes the spray angle of the ventilation duct. This makes it convenient for the staff to adjust the spray angle of the ventilation duct to adapt to crops or fruit trees of different heights. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the mounting bracket body in Example 1.

[0024] Figure 2 This is an exploded view of the main body of the mounting frame in Example 1.

[0025] Figure 3 This is a schematic diagram of the first moving part in Embodiment 1.

[0026] Figure 4 This is a schematic diagram of the support member in Example 1.

[0027] Figure 5 This is a schematic diagram of the lifting device in Example 1.

[0028] Figure 6 This is a cross-sectional view of the mounting bracket body in Example 1.

[0029] Figure 7 This is a partial enlarged view of the main body of the mounting bracket in Example 1.

[0030] Figure 8 This is a schematic diagram of the fixing component in Example 1. Detailed Implementation

[0031] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0032] Example 1

[0033] like Figure 1-8As shown, this embodiment provides a mounting bracket for a spraying truck's ventilation duct, including a mounting bracket body 100. The mounting bracket body 100 includes a support member 140, and the support member 140 includes a first mounting seat 430 arranged along the width direction of the spraying truck. Above the first mounting seat 430 are a first moving member 130 and a second moving member 110 with the same structure for mounting the ventilation duct. A driving device is provided at the first mounting seat 430, which is used to push the first moving member 130 and the second moving member 110 to move towards or away from each other along the length direction of the first mounting seat 430. A lifting device 120 is provided below the first mounting seat 430, which is used to push the first mounting seat 430 up or down.

[0034] In this embodiment, the installer first fixes the mounting frame body 100 onto the spraying vehicle by passing bolts through the bolt holes 530 on the connecting feet 540 at both ends of the second mounting base 520. Then, during the use of the spraying vehicle, the operator adjusts the overall height of the mounting frame body 100 according to the height of crops or fruit trees at different stages. During adjustment, the operator first starts the second motor 550, which drives the second threaded rod 710 to rotate. As the second threaded rod 710 rotates, the threads on it push the second guide block 501 at one end of the first support rod 570 and the fourth guide block 502 at one end of the second support rod 580 to move along the second mounting groove 720. The second guide block 501 and the fourth guide block 502 are respectively provided with opposite threads. The second and third threaded holes allow the second threaded rod 710 to drive the second guide block 501 and the fourth guide block 502 to move in opposite directions. During this movement, the first support rod 570 and the second support rod 580 rotate along the intersection point, causing the third guide block 510 and the first guide block 560 to move along the third mounting groove 750. The first support rod 570 and the second support rod 580 lift the support member 140. As the support member 140 rises, it also moves the first moving member 130 and the second moving member 110 upwards, causing the air ducts on the first moving member 130 and the second moving member 110 to rise together. This allows workers to easily adjust the height of the mounting frame, enabling the air ducts installed on the mounting frame to spray pesticides suitable for crops and fruit trees at different heights, thus avoiding pesticide waste.

[0035] When the spraying truck encounters roads of varying widths, crops or fruit trees on both sides of the road need to be sprayed with pesticide. At this time, the staff starts the first motor 440, which drives the first threaded rod 770 to rotate. The rotation of the first threaded rod 770 pushes the sliding block 350 below the first moving part 130 and the second moving part 110 to move towards or away from each other along the first mounting groove 780. This allows the staff to adjust the distance between the first moving part 130 and the second moving part 110, thereby adjusting the distance of the spraying of pesticide on the air duct of the first moving part 130 and the second moving part 110, preventing waste of pesticide during spraying. At the same time, the mounting frame on the spraying truck can adapt to roads of different widths.

[0036] In this embodiment, the first mounting base 430 is provided with a first mounting groove 780 along the length direction of the first mounting base 430 at the end face near the first moving member 130; the first moving member 130 and the second moving member 110 include a first upright 310 and a second upright 390 arranged parallel to the first upright 310; one end of the second upright 390 is bent to form a curved portion and is connected to one end of the first upright 310; the other end of the second upright 390 is provided with a connecting rod 340 for connecting the first upright 310 and the second upright 390; both ends of the connecting rod 340 are provided with sliding blocks 350 extending into the first mounting groove 780; the sliding block 350 is provided with a first threaded hole; the driving device includes a first threaded rod 770 disposed in the first mounting groove 780 and arranged along the length direction of the first mounting groove 780, the first threaded rod 770 passes through the first threaded hole and cooperates with the first threaded hole on the sliding block 350; one end of the first mounting base 430 is provided with a first motor 440 for driving the first threaded rod 770 to rotate.

[0037] In this embodiment, during the rotation of the first threaded rod 770 driven by the first motor 440, the sliding block 350 below the first moving member 130 and the second moving member 110 slides along the first mounting groove 780. The first mounting groove 780 limits the sliding block 350, thereby making the first moving member 130 and the second moving member 110 more stable when they move towards or away from each other. One end of the first mounting base 430 extends outward to form a first placement plate for preventing the first motor 440 from moving. The operator fixes the support foot of the first motor 440 to the first placement plate with bolts.

[0038] In this embodiment, the lifting device 120 includes a second mounting base 520 arranged along the length direction of the first mounting base 430, and a second mounting groove 720 arranged along the length direction of the second mounting base 520 is provided at one end face of the second mounting base 430 near the first mounting base 430; a third mounting groove 750 arranged along the length direction of the first mounting base 430 is provided at the lower end face of the first mounting base 430.

[0039] In this embodiment, when the second motor 550 drives the second threaded rod 710 to rotate, and the second threaded rod 710 pushes the fourth guide block 502 and the second guide block 501 to slide in the second mounting groove 720, the second mounting groove 720 limits the fourth guide block 502 and the second guide block 501 to prevent the lifting device 120 from becoming unstable when the fourth guide block 502 and the second guide block 501 move; when the third guide block 510 and the first guide block 560 slide in the third mounting groove 750, the third mounting groove 750 limits the third guide block 510 and the first guide block 560 to improve the stability of the third guide block 510 and the first guide block 560 when they move.

[0040] In this embodiment, a first support rod 570 and a second support rod 580 are provided between the first mounting base 430 and the second mounting base 520, and the first support rod 570 and the second support rod 580 are arranged crosswise; the first support rod 570 and the second support rod 580 are rotatably connected at their intersection point; the first support rod 570 has a first guide block 560 extending into the third mounting groove 750 and a second guide block 501 extending into the second mounting groove 720 at both ends; the first guide block 560 and the second guide block 501 are respectively hinged to the two ends of the first support rod 570; the first guide block 560 has a first through hole penetrating the first guide block 560, and the second guide block 501 has a second threaded hole penetrating the second guide block 501.

[0041] The second support rod 580 has a third guide block 510 extending into the third mounting groove 750 and a fourth guide block 502 extending into the second mounting groove 720 at both ends. The third guide block 510 and the fourth guide block 502 are respectively hinged to the two ends of the second support rod 580. The third guide block 510 has a second through hole, and the fourth guide block 502 has a third threaded hole. The second mounting groove 720 has a second threaded rod 710 arranged along the length of the second mounting groove 720. The second threaded rod 710 passes through the second threaded hole and the third threaded hole and is threadedly engaged with the second threaded hole and the third threaded hole. The second mounting base 520 has a second motor 550 at one end for driving the second threaded rod 710 to rotate.

[0042] In this embodiment, at the intersection of the first support rod 570 and the second support rod 580, a screw 590 passes through the first support rod 570 and the second support rod 580, and is then fixed by a nut, so that the first support rod 570 and the second support rod 580 can rotate along the screw 590.

[0043] The second mounting base 520 extends outward at one end to form a second placement plate 760. The mounting feet of the second motor 550 are fixed to the second placement plate 760 by screws, making it convenient for installers to install the second motor 550.

[0044] In this embodiment, a first guide rod 740 is provided in the third mounting groove 750 along the length direction of the third mounting groove 750, and the first guide rod 740 passes through the first through hole and the second through hole.

[0045] In this embodiment, when the third guide block 510 and the first guide block 560 move in the third mounting groove 750, the third guide block 510 and the first guide block 560 also move along the first guide rod 740. The first guide rod 740 can prevent the third guide block 510 and the first guide block 560 from disengaging from the third mounting groove 750; at the same time, it can also improve the stability of the third guide block 510 and the first guide block 560 when they move.

[0046] In this embodiment, springs 730 fitted on the first guide rod 740 are provided between the third guide block 510 and one side wall of the third mounting groove 750, and between the first guide block 560 and the other side wall of the third mounting groove 750.

[0047] In this embodiment, the spring 730 constantly presses against the third guide block 510 and the first guide block 560, thereby preventing the support member 140 from sliding relative to each other when the first guide block 560 moves with the third mounting groove 750.

[0048] In this embodiment, a column 410 perpendicular to the first mounting base 430 is provided between the first moving member 130 and the second moving member 110. Multiple second guide rods 420 extending towards the first moving member 130 and the second moving member 110 are provided at the side walls of both ends of the column 410. Multiple hollow sleeves 330 connecting the first column 310 and the second column 390 are provided between the first column 310 and the second column 390. A guide hole 320 communicating with the hollow sleeve 330 is provided at the side wall of the first column 310. The second guide rods 420 pass through the guide hole 320 and extend into the hollow sleeve 330.

[0049] In this embodiment, when the first moving member 130 and the second moving member 110 move toward each other or away from each other, the second guide rods 420 at both ends of the column 410 extend into the hollow sleeve 330 and move back and forth, so that when the first moving member 130 and the second moving member 110 move, the second guide rods 420 can better improve the stability of the first moving member 130 and the second moving member 110 during movement.

[0050] In this embodiment, the second upright 390 has a plurality of fixing components 370 for fixing the air duct on its side wall, and the plurality of fixing components 370 are spaced apart along the length of the second upright 390. The fixing components 370 include a fastening sleeve 360 ​​fixedly connected to the second upright 390, and the fastening sleeve 360 ​​has a plurality of pin holes 380 distributed circumferentially along its side wall. A connecting post 830 extending into the fastening sleeve 360 ​​is provided above the fastening sleeve 360, and a pin blind hole 820 corresponding to the pin hole 380 is provided on the side wall of the connecting post 830. A circular plate 810 is provided at the end of the connecting post 830 away from the fastening sleeve 360, and a clamp for fixing the air duct is provided at the circular plate 810.

[0051] In this embodiment, when installing the ventilation duct, the installer fixes the duct to the clamp, and then rotates the circular plate 810 according to the height of the crops or fruit trees so that the blind hole 820 on the connecting column 830 corresponds to the pin hole 380 on the fastening sleeve 360. Finally, the pin 840 passes through the pin hole 380 and extends into the blind hole 820 to fix the connecting column 830, which also fixes the spray angle of the ventilation duct. This makes it convenient for the staff to adjust the spray angle of the ventilation duct to adapt to crops or fruit trees of different heights.

[0052] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0053] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An installation rack for a wind tube of a spraying vehicle, characterized by: The system includes a mounting frame body (100), which includes a support member (140). The support member (140) includes a first mounting seat (430) arranged along the width direction of the spraying vehicle. Above the first mounting seat (430) are a first moving member (130) and a second moving member (110) with the same structure for mounting the air duct. A driving device is provided at the first mounting seat (430) to push the first moving member (130) and the second moving member (110) to move towards each other or away from each other along the length direction of the first mounting seat (430). A lifting device (120) is provided below the first mounting seat (430) to push the first mounting seat (430) up or down.

2. The mounting bracket for a fan housing of a pesticide spraying vehicle according to claim 1, characterized in that: The first mounting base (430) has a first mounting groove (780) arranged along the length direction of the first mounting base (430) at the end face near the first moving member (130); the first moving member (130) and the second moving member (110) include a first upright (310) and a second upright (390) arranged parallel to the first upright (310); one end of the second upright (390) is bent to form a curved portion and is connected to one end of the first upright (310); the other end of the second upright (390) is provided with a connecting rod for connecting the first upright (310) and the second upright (390). Connecting rod (340); both ends of connecting rod (340) are provided with sliding blocks (350) that extend into the first mounting groove (780); the sliding block (350) is provided with a first threaded hole; the driving device includes a first threaded rod (770) disposed in the first mounting groove (780) and disposed along the length direction of the first mounting groove (780), the first threaded rod (770) passes through the first threaded hole and engages with the first threaded hole on the sliding block (350); one end of the first mounting base (430) is provided with a first motor (440) for driving the first threaded rod (770) to rotate.

3. The mounting bracket for a fan housing of a pesticide spraying vehicle according to claim 2, characterized in that: The lifting device (120) includes a second mounting base (520) arranged along the length of the first mounting base (430), and a second mounting groove (720) arranged along the length of the second mounting base (520) at one end face near the first mounting base (430); and a third mounting groove (750) arranged along the length of the first mounting base (430) at the lower end face of the first mounting base (430).

4. The mounting bracket for a fan housing of a spray vehicle according to claim 3, wherein: A first support rod (570) and a second support rod (580) are provided between the first mounting base (430) and the second mounting base (520), and the first support rod (570) and the second support rod (580) are arranged crosswise; the first support rod (570) and the second support rod (580) are rotatably connected at the intersection point; the first support rod (570) has a first guide block (560) extending into the third mounting groove (750) and a second guide block (501) extending into the second mounting groove (720) at both ends; the first guide block (560) and the second guide block (501) are respectively hinged to the two ends of the first support rod (570); the first guide block (560) has a first through hole penetrating the first guide block (560), and the second guide block (501) has a second threaded hole penetrating the second guide block (501); The second support rod (580) has a third guide block (510) extending into the third mounting groove (750) and a fourth guide block (502) extending into the second mounting groove (720) at both ends. The third guide block (510) and the fourth guide block (502) are respectively hinged to the two ends of the second support rod (580). The third guide block (510) has a second through hole that passes through the third guide block (510), and the fourth guide block (502) has a third threaded hole that passes through the fourth guide block (502). The second mounting groove (720) has a second threaded rod (710) arranged along the length direction of the second mounting groove (720). The second threaded rod (710) passes through the second threaded hole and the third threaded hole and is threadedly engaged with the second threaded hole and the third threaded hole. The second mounting base (520) has a second motor (550) at one end for driving the second threaded rod (710) to rotate.

5. The mounting bracket for a fan housing of a spray vehicle according to claim 4, wherein: The third mounting groove (750) is provided with a first guide rod (740) arranged along the length direction of the third mounting groove (750), and the first guide rod (740) passes through the first through hole and the second through hole.

6. The mounting bracket for a fan housing of a spray vehicle according to claim 5, wherein: A spring (730) fitted on the first guide rod (740) is provided between the third guide block (510) and one side wall of the third mounting groove (750), and between the first guide block (560) and the other side wall of the third mounting groove (750).

7. The mounting bracket for a fan housing of a spray vehicle according to claim 5, wherein: A column (410) perpendicular to the first mounting base (430) is provided between the first moving part (130) and the second moving part (110). Multiple second guide rods (420) extending towards the first moving part (130) and the second moving part (110) are provided at the side walls of both ends of the column (410). Multiple hollow sleeves (330) connecting the first upright (310) and the second upright (390) are provided between the first upright (310) and the second upright (390). A guide hole (320) communicating with the hollow sleeve (330) is provided at the side wall of the first upright (310). The second guide rod (420) passes through the guide hole (320) and extends into the hollow sleeve (330).

8. The mounting bracket for a fan housing of a spray vehicle according to claim 7, wherein: The second upright (390) has multiple fixing components (370) for fixing the air duct on its side wall. The multiple fixing components (370) are spaced apart along the length of the second upright (390). The fixing component (370) includes a fastening sleeve (360) that is fixedly connected to the second upright (390). The fastening sleeve (360) has multiple pin holes (380) distributed circumferentially along its side wall. The fastening sleeve (360) has a connecting post (830) that extends into the fastening sleeve (360) above it. The connecting post (830) has a pin blind hole (820) that corresponds to the pin hole (380) on its side wall. The connecting post (830) has a circular plate (810) at one end away from the fastening sleeve (360). The circular plate (810) has a clamp for fixing the air duct.

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