Blowing system with automatic obstacle avoidance function

Abstract

The invention relates to a blowing system with an automatic obstacle avoidance function, the blowing system is used for being mounted on a vehicle for road blowing, the system comprises a fan mounted on the vehicle and a deformable air pipe assembly connected with the fan, and the air outlet end of the air pipe assembly is close to the road surface and is provided with walking wheels; the system further comprises a guide assembly, and the guide assembly is used for conducting lifting guide on the walking wheels and the air outlet end of the air pipe assembly when the walking wheels meet road obstacles. According to the air blowing system, the air pipe assembly is arranged, the height of the air outlet can be close to the ground, the better air blowing effect is achieved, on the basis, the air pipe assembly is arranged to be deformable, the height of the second air pipe is changed through deformation when the air pipe assembly encounters an obstacle, then obstacle avoidance is conducted, and the guide assembly is further arranged; the lifting device is used for limiting the lifting track of the air outlet of the air pipe assembly so that the air outlet can shake up and down along the lifting track, and the walking wheels arranged on the air outlet are matched so that the automatic obstacle avoiding function can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of road blowing, and in particular relates to a blowing system with an automatic obstacle avoidance function. Background Art

[0002] The road blowing system in the prior art is mainly installed at the rear of the vehicle and is directly connected to the fan through a pipeline, and the height of the fan pipeline from the ground is fixed.

[0003] The blowing system is at a large distance from the ground during operation. To ensure the operation effect, a larger power fan is required. If the air outlet is set at a small distance from the ground, the vehicle can pass through obstacles normally when passing through roads with changing slopes. However, if the blowing duct is too close to the ground, it is easy to hit obstacles and cause damage. Summary of the invention

[0004] The purpose of the present invention is to provide a blowing system with automatic obstacle avoidance function in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A blowing system with automatic obstacle avoidance function, which is used to be installed on a vehicle for road blowing. The system includes a blower installed on the vehicle and a deformable air duct assembly connected to the blower. The air outlet end of the air duct assembly is close to the road surface and is provided with running wheels.

[0007] The system also includes a guide assembly, which is used to guide the travel wheel and the air outlet end of the air duct assembly to rise and fall when the travel wheel encounters a road obstacle.

[0008] As a further optimization solution of the present invention, the air duct assembly includes a first air duct, a soft air duct and a second air duct, the first air duct is connected to the fan, and the air outlet is arranged on the side of the second air duct.

[0009] As a further optimization scheme of the present invention, the two ends of the soft air duct are connected with the first air duct and the second air duct, and a clamp is provided at the connection point to fix the soft air duct. When in use, the soft air duct will be deformed with the rise and fall of the second air duct. Therefore, in order to make the connection between the soft air duct and the air ducts at both ends firm and sealed, a clamp is used to fix it.

[0010] As a further optimization scheme of the present invention, the blowing system also includes a lifting assembly for lifting the second air duct, the lifting assembly includes a telescopic driving part for pulling up the second air duct, the driving end of the telescopic driving part is provided with a non-rigid traction part for connecting with the second air duct, the telescopic driving part can adopt an electric push rod, a cylinder, a hydraulic cylinder and other driving components, the traction part is set as a hanging chain or a traction rope, so that the second air duct can move upward to avoid obstacles when encountering obstacles.

[0011] As a further optimization scheme of the present invention, the walking wheel is lifted and lowered on the second air duct, and a guide plate is provided on the wheel cover of the walking wheel. When an obstacle appears, the obstacle lifts the second air duct upward along the curved direction of the guide plate to achieve automatic obstacle avoidance.

[0012] As a further optimization scheme of the present invention, the guide assembly includes a fixed frame fixedly connected to the vehicle, and a first connecting rod and a second connecting rod are arranged between the fixed frame and the second air duct. The two connecting rods enable the second air duct to have a trajectory of moving obliquely upward in the opposite direction when encountering an obstacle. That is, even if encountering an obstacle with a height higher than the walking wheels, the second air duct will automatically rise obliquely in the opposite direction through the first connecting rod and the second connecting rod after contacting the obstacle.

[0013] As a further optimization scheme of the present invention, a template is rotatably provided on the first connecting rod, and a buffer pad is provided on the surface of the second air duct. The template is used to press against the buffer pad when the second air duct is pulled up to limit the second air duct from shaking upward. This scheme prevents the second air duct from shaking up and down when the second air duct is pulled up by providing a buffer pad and a template. The stroke amplitude of the second air duct when rising is greater than that of the template. Therefore, when it is raised to a certain extent, the buffer pad on the second air duct contacts the template and has a tendency to be pressed. The second air duct is simultaneously subjected to upward pulling force and downward pressure to prevent shaking.

[0014] As a further optimization scheme of the present invention, the template is rotatably connected to the first connecting rod via a rotating shaft, and the rotating shaft has an adjustment space at a fixed position on the first connecting rod. This scheme can set the position of the template, which can be achieved by changing the position of the rotating shaft. This setting can change the initial distance between the template and the buffer pad to facilitate adjusting the height when the two are in contact, thereby changing the clamping force when the second air duct is lifted.

[0015] As a further optimization scheme of the present invention, the first connecting rod is a telescopic rod with adjustable length, and the first connecting rod includes a first hinged rod connected to the second air duct and a second hinged rod connected to the fixing frame, wherein the first hinged rod and the second hinged rod are telescopically connected to each other along the axial direction, and one of the hinged rods is provided with a bolt, which is used to fix it to the other hinged rod after telescoping. This scheme facilitates the adjustment of the angle between the outlet of the second air duct and the ground by providing a first connecting rod with adjustable length.

[0016] The beneficial effects of the present invention are:

[0017] The present invention arranges an air duct assembly so that the height of the air outlet can be close to the ground, thereby achieving a better blowing effect. On this basis, the air duct assembly is arranged to be deformable. When encountering an obstacle, the height of the second air duct is changed by deformation, thereby avoiding the obstacle. A guide assembly is further arranged to limit the lifting and lowering trajectory of the air outlet of the air duct assembly so that the air outlet can swing up and down along its lifting and lowering trajectory, and cooperates with the walking wheels arranged on the air outlet to have an automatic obstacle avoidance function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The present invention Figure 1 Schematic diagram of the second air duct after it is lifted;

[0020] Figure 3 The present invention Figure 1 Schematic diagram of the second air duct after lowering;

[0021] Figure 4 The present invention Figure 2 Middle AA view;

[0022] In the figure: 1. fan; 2. air duct assembly; 21. first air duct; 22. flexible air duct; 23. second air duct; 24. walking wheel; 25. guide plate; 26. clamp; 3. guide assembly; 31. fixing frame; 32. fixing bolt; 33. first hinge rod; 34. second hinge rod; 35. bolt; 36. second connecting rod; 37. mold plate; 38. buffer pad; 4. lifting assembly; 41. telescopic drive unit; 42. traction member. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1

[0025] like Figure 1-4 As shown, a blowing system with an automatic obstacle avoidance function is used to be installed on a vehicle for road blowing. The system includes a fan 1 installed on the vehicle and a deformable duct assembly 2 connected to the fan 1. The air outlet end of the duct assembly 2 is close to the road surface and is provided with a running wheel 24; the system also includes a guide assembly 3, and the guide assembly 3 is used to lift and guide the running wheel 24 and the air outlet end of the duct assembly 2 when the running wheel 24 encounters a road obstacle.

[0026] Specifically, the air duct assembly 2 includes a first air duct 21 , a flexible air duct 22 and a second air duct 23 . The first air duct 21 is connected to the fan 1 , and an air outlet is arranged on a side of the second air duct 23 .

[0027] Both ends of the soft air duct 22 are connected to the first air duct 21 and the second air duct 23, and a clamp 26 is provided at the connection point to fix the soft air duct 22. When in use, the soft air duct 22 will deform with the rise and fall of the second air duct 23. Therefore, in order to make the connection between the soft air duct 22 and the air ducts at both ends firm and sealed, a clamp 26 is used to fix it.

[0028] The blowing system also includes a lifting component 4 for lifting the second air duct 23, and the lifting component 4 includes a telescopic driving part 41 for pulling up the second air duct 23. The driving end of the telescopic driving part 41 is provided with a non-rigid traction member 42 for connecting with the second air duct 23. The telescopic driving part 41 can adopt driving components such as an electric push rod, a cylinder, a hydraulic cylinder, etc. The traction member 42 is configured as a hanging chain or a traction rope. Changing the length of the traction member 42 can adjust the upward lifting limit of the air duct 23, so that the second air duct 23 can move upward to avoid obstacles when encountering obstacles.

[0029] By setting the air duct assembly 2 into three sections, the middle section adopts a soft air duct 22, and a non-rigid traction member 42 is provided to lift the second air duct 23 at the bottom. When lifted, it is used to store the second air duct 23. When the second air duct 23 is lowered, due to the loose connection of the traction member 42, it can swing up and down along its lifting trajectory, and cooperate with the walking wheels 24 set on the second air duct 23, it has an automatic obstacle avoidance function.

[0030] The travel wheel 24 is lifted and lowered on the second air duct 23, and a guide plate 25 is provided on the wheel cover of the travel wheel 24. When an obstacle appears, the obstacle lifts the second air duct 23 upward along the curved direction of the guide plate 25 to achieve automatic obstacle avoidance.

[0031] The guide assembly 3 includes a fixing frame 31 fixedly connected to the vehicle, a first connecting rod and a second connecting rod 36 are arranged between the fixing frame 31 and the second air duct 23, the fixing frame 31 is connected to the vehicle through at least two fixing bolts 32, and the guide assembly 3 is used to limit the upward rising trajectory of the second air duct 23, and the first connecting rod and the second connecting rod 36 are used to make the second air duct 23 have a trajectory of moving obliquely upward in the opposite direction when encountering an obstacle, that is, even if encountering an obstacle with a height higher than the walking wheel 24, the second air duct 23 will automatically rise obliquely in the opposite direction through the first connecting rod and the second connecting rod 36 after contacting the obstacle, as shown in the specific example. Figure 3As shown, when an obstacle with a height higher than the running wheel 24 appears on the right side of the second air duct 23, the second air duct 23 moves to the left side relative to the vehicle (i.e., the fixing frame 31), and driven by the first connecting rod and the second connecting rod 36, the second air duct 23 has a tendency to rise automatically, and then passes over the obstacle through the running wheel 24 after the height is increased.

[0032] A template 37 is rotatably provided on the first connecting rod, and a buffer pad 38 is provided on the surface of the second air duct 23. The template 37 is used to press against the buffer pad 38 when the second air duct 23 is pulled up to limit the second air duct 23 from shaking upward. In this solution, the buffer pad 38 and the template 37 are provided to prevent the second air duct 23 from shaking up and down after the second air duct 23 is pulled up. Specifically, Figure 2-3 As shown, since the height of the shaft connecting the first connecting rod and the second connecting rod 36 and the fixing frame 31 remains unchanged, when the connecting rod rotates upward, the upward movement speed of the template 37 located in the middle part of the first connecting rod is lower than that of the second air duct 23, that is, the stroke amplitude of the second air duct 23 when rising is greater than that of the template 37. Therefore, when it is raised to a certain extent, the buffer pad 38 on the second air duct 23 contacts the template 37 and has a tendency to be compressed. At the same time, the second air duct 23 is pulled upward by the traction member 42 and the downward pressure of the template 37, which can prevent shaking. In conjunction with the connecting rods on both sides, the second air duct 23 is completely fixed.

[0033] The mold plate 37 is rotationally connected to the first connecting rod through a rotating shaft, and the rotating shaft has an adjustment space at a fixed position on the first connecting rod. The present solution can set the position of the mold plate 37, which can be achieved by changing the position of the rotating shaft. This setting can change the initial distance between the mold plate 37 and the buffer pad 38 to facilitate adjustment of the height when the two are in contact, thereby changing the clamping force when the second air duct 23 is lifted. The adjustment method of the rotating shaft and the first connecting rod can adopt the existing technology, and it only needs to change the position and then fix it, which will not be described in detail here.

[0034] The specific implementation method is as follows: the fan 1, the telescopic drive unit 41, and the fixing frame 31 are installed on the vehicle. When the vehicle moves forward, the second air duct 23 is lowered by the telescopic drive unit 41. The second air duct 23 falls due to its own weight or an additional spring. The wind is generated by the fan 1 and blown outward from the second air duct 23. The running wheels 24 touch the ground and roll. When encountering an obstacle, the second air duct 23 is lifted up by the running wheels 24 or the guide plates 25, or the second air duct 23 is directly lifted up backwards and upwards to achieve the purpose of automatic obstacle avoidance. When blowing is not needed, the telescopic drive unit 41 pulls up the traction member 42, and the second air duct 23 is lifted. Then, the second air duct 23 is fixed by the contact between the mold plate 37 and the buffer pad 38.

[0035] Example 2

[0036] Different from Example 1, the first connecting rod of this embodiment is a telescopic rod with adjustable length, and the first connecting rod includes a first hinged rod 33 connected to the second air duct 23, and a second hinged rod 34 connected to the fixing frame 31, wherein the first hinged rod 33 and the second hinged rod 34 are telescopically connected to each other along the axial direction, and one of the hinged rods is provided with a bolt 35, which is used to fix it to the other hinged rod after extension and retraction. This scheme arranges a first connecting rod with adjustable length to facilitate the adjustment of the angle between the outlet of the second air duct and the ground.

[0037] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A blowing system with automatic obstacle avoidance function, used for installation on a vehicle for road blowing, characterized in that: The system comprises a fan (1) installed on a vehicle and a deformable air duct assembly (2) connected to the fan (1), wherein the air outlet end of the air duct assembly (2) is close to the road surface and is provided with running wheels (24); The system further comprises a guide assembly (3), wherein the guide assembly (3) is used to guide the travel wheel (24) and the air outlet end of the air duct assembly (2) to rise and fall when the travel wheel (24) encounters a road obstacle.

2. The blowing system with automatic obstacle avoidance function according to claim 1, characterized in that: The air duct assembly (2) comprises a first air duct (21), a flexible air duct (22) and a second air duct (23); the first air duct (21) is connected to the fan (1), and an air outlet is arranged on the side of the second air duct (23).

3. The blowing system with automatic obstacle avoidance function according to claim 1, characterized in that: The two ends of the soft air duct (22) are connected to the first air duct (21) and the second air duct (23), and a clamp (26) is provided at the connection point to fix the soft air duct (22).

4. The blowing system with automatic obstacle avoidance function according to claim 2, characterized in that: The blowing system further comprises a lifting assembly (4) for lifting the second air duct (23), wherein the lifting assembly (4) comprises a telescopic driving part (41) for pulling up the second air duct (23), and a non-rigid traction member (42) is provided at a driving end of the telescopic driving part (41) for connecting to the second air duct (23).

5. The blowing system with automatic obstacle avoidance function according to claim 4, characterized in that: The rear end of the telescopic driving part (41) is hingedly arranged on the vehicle, and the traction member (42) is a hanging chain or a traction rope.

6. The blowing system with automatic obstacle avoidance function according to claim 2, characterized in that: The running wheel (24) is arranged on the second air duct (23) in a lifting manner, and a guide plate (25) is arranged on the wheel cover of the running wheel (24).

7. The blowing system with automatic obstacle avoidance function according to claim 2, characterized in that: The guide assembly (3) comprises a fixing frame (31) fixedly connected to the vehicle, and a first connecting rod and a second connecting rod (36) are arranged between the fixing frame (31) and the second air duct (23).

8. The blowing system with automatic obstacle avoidance function according to claim 7, characterized in that: A mold plate (37) is rotatably provided on the first connecting rod, and a buffer pad (38) is provided on the surface of the second air duct (23). The mold plate (37) is used to press against the buffer pad (38) when the second air duct (23) is pulled up, so as to limit the second air duct (23) from shaking upward.

9. The blowing system with automatic obstacle avoidance function according to claim 8, characterized in that: The template (37) is rotatably connected to the first connecting rod via a rotating shaft, and the rotating shaft has an adjustment space at a fixed position on the first connecting rod.

10. The blowing system with automatic obstacle avoidance function according to claim 7, characterized in that: The first connecting rod is a telescopic rod with adjustable length, and comprises a first hinged rod (33) connected to the second air duct (23) and a second hinged rod (34) connected to the fixing frame (31), wherein the first hinged rod (33) and the second hinged rod (34) are telescopically connected to each other along the axial direction, and a bolt (35) is provided on one of the hinged rods for fixing with the other hinged rod after telescoping.

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