Sundry blower for cleaning fallen leaves on lawn

By optimizing the air supply adjustment mechanism and drive mechanism, the problems of complex structure, high noise, low air force and non-adjustable air supply angle of lawn blowers have been solved, achieving a more efficient and quieter lawn cleaning effect.

CN224154819UActive Publication Date: 2026-04-24DONGGUAN ZHUOYUE ELECTRIC VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN ZHUOYUE ELECTRIC VEHICLE CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing lawn blowers are complex in structure, noisy, have weak airflow, and cannot adjust the airflow angle, thus failing to effectively protect the lawn.

Method used

An air supply adjustment mechanism and a drive mechanism were designed, including a vertical plate, a horizontal plate, a fixed plate, a connecting plate, and an arc groove. The air supply angle can be adjusted by connecting the adjustment bolts. The diameter of the drive wheel and the blade area were increased, the air inlet design was optimized, a rubber layer was used to protect the roller, and high-precision bearing seats and casters were adopted to optimize the roller structure.

Benefits of technology

The design simplifies the structure, reduces noise, enhances wind power, protects the lawn, and allows for flexible adjustment of the air delivery angle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224154819U_ABST
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Abstract

The utility model relates to the technical field of blowers, in particular to a sundries blower for cleaning fallen leaves on lawns, which comprises an air cavity plate body, an air inlet, an air outlet and an air outlet. An air supply adjusting mechanism is arranged at the position of the air outlet; the air supply adjusting mechanism comprises a vertical plate fixedly installed in the air outlet, and a horizontal plate movably installed on the vertical plate. The two horizontal plates are each provided with a fixing plate, the two fixing plates are movably connected through a connecting plate, the fixing plate located on the top is provided with an arc-shaped groove, and the arc-shaped groove is connected with the bending plate through an adjusting bolt. The lawn blower solves the problems that a lawn blower is complex in structure, loud in noise and small in wind power, and meanwhile a rigid roller does not protect a lawn and cannot adjust the air supply angle when rolling.
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Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, specifically to a hair dryer for cleaning up fallen leaves and debris on lawns. Background Technology

[0002] A lawn is an artificial grassland made of densely planted, mowed perennial, low-growing herbaceous plants. Large lawns appeared in English landscape gardens in the mid-18th century. Lawns also appeared in modern Chinese gardens, with main varieties including Kentucky bluegrass, tall fescue, evergreen turf, cool-season turf, and mixed-species lawns. Lawns are indispensable in parks and gardens; people typically engage in various activities on lawns, thus requiring a high level of cleanliness. To ensure lawn cleanliness and ease of use, lawn cleaners are commonly used to remove litter.

[0003] In existing technologies, lawn blowers have complex structures, are noisy, and have weak airflow. In addition, the rigid rollers do not protect the lawn when they are rolling and the airflow angle cannot be adjusted. Utility Model Content

[0004] The purpose of this utility model is to provide a debris blower for cleaning up fallen leaves on lawns. The technical problem solved by this utility model is that it cannot protect the lawn and the air delivery angle cannot be adjusted.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A debris blower for clearing fallen leaves from lawns includes:

[0007] The air chamber plate has an air outlet at its bottom.

[0008] An air supply regulating mechanism is installed at the air outlet; the air supply regulating mechanism includes:

[0009] The vertical plate is fixedly installed inside the air outlet, and the horizontal plate is movably installed on the vertical plate;

[0010] Two fixed plates are installed on the two horizontal plates respectively. The two fixed plates are movably connected by a connecting plate. The fixed plate at the top is provided with an arc-shaped groove, and the arc-shaped groove is connected to the bending plate by adjusting bolts.

[0011] As a further aspect of this utility model, it also includes:

[0012] The front bracket contains a drive mechanism; the drive mechanism includes:

[0013] The drive shaft has one end connected to a universal joint and the other end connected to the tractor's output shaft. The tractor's output shaft drives the drive shaft to rotate. The other end of the drive shaft is connected to the drive wheel, which is connected to the driven wheel via a belt. The driven wheel is connected to the flange via a connecting shaft.

[0014] As a further embodiment of this utility model: two vertical plates are arranged side by side.

[0015] As a further embodiment of this utility model: two horizontal plates are arranged side by side.

[0016] As a further embodiment of this utility model: the inner cavity of the air chamber plate is provided with blades, and air inlets are respectively provided on the front and rear sides of the air chamber plate; an air outlet is provided at the bottom of the air chamber plate.

[0017] The blade is fixedly connected to one end of the connecting pipe by bolts, and the other end of the connecting pipe is fixedly connected to the flange by bolts; the flange is fixedly sleeved on the output shaft.

[0018] As a further embodiment of this utility model: air inlets are provided on the front and rear sides of the air cavity plate, and the air inlets on the front and rear sides are located on the front and rear sides of the blade, respectively.

[0019] As a further aspect of this utility model, it also includes:

[0020] The roller is installed at the bottom of the air chamber plate.

[0021] As a further embodiment of this invention, the roller is provided with a rubber layer.

[0022] As a further embodiment of this invention, a caster wheel is installed at the bottom of the front bracket.

[0023] The beneficial effects of this utility model are:

[0024] 1. The problem of complex structure and large size is solved by reserving a rectangular groove on the lower left side of the lower air cavity and welding the air outlet to the reserved position on the lower left side of the lower air cavity.

[0025] 2. The problem of high noise at high speeds can be solved by selecting bearing housings with better technology, higher precision, and more advanced design.

[0026] 3. By designing circular air inlets on both the front and rear sides of the output shaft, air can be introduced from both sides of the output shaft, increasing the air volume and reducing vortices in the air cavity, thus solving the problem of high internal noise at high speeds.

[0027] 5. By increasing the diameter of the drive wheel to obtain a higher transmission ratio, a larger output shaft speed can be obtained without changing the input shaft speed, driving the fan to rotate at a higher speed and solving the problem of low airflow.

[0028] 6. By designing circular air inlets on both the front and rear sides of the output shaft, air can be introduced from both sides of the output shaft, increasing the air intake volume and solving the problem of low airflow.

[0029] 7. The problem of low wind power can be solved by increasing the area of ​​the fan blades to obtain a larger cross-section.

[0030] 8. By increasing the length and diameter of the rigid roller, the contact area between the roller and the lawn is increased, reducing the stress on the lawn per unit area and solving the problem of lawn damage.

[0031] 7. By wrapping a layer of rubber around the rigid roller, the surface of the roller is softened, which solves the problems of damaging the lawn and excessive noise when walking on it.

[0032] 9. By designing an adjustable horizontal plate, the horizontal plate and the round rod are welded together. The round rod can rotate inside the bushing, which is welded to the inner wall of the air outlet. A plate is welded to the upper and lower horizontal plates respectively, and the two plates are fastened to the connecting plate by bolts to realize the linkage between the upper and lower horizontal plates. An arc groove is designed on the upper plate, and a bent plate is welded to the inner wall of the air outlet. A bolt passes through the reserved hole in the bent part and can slide in the arc groove to limit the adjustment angle and solve the problem of not being able to adjust the air supply angle. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a debris blower for cleaning fallen leaves on lawns, provided by this utility model;

[0035] Figure 2 This is a side view of a debris blower for cleaning fallen leaves on lawns, provided by this utility model;

[0036] Figure 3 This is a schematic diagram of the blades in a debris blower for cleaning fallen leaves on lawns, provided by this utility model.

[0037] Figure 4 This is a schematic diagram of the drive mechanism in a debris blower for cleaning fallen leaves on lawns, provided by this utility model.

[0038] Figure 5 This utility model provides Figure 2 A magnified view of a portion of point A in the middle.

[0039] In the diagram, 1. Air chamber panel; 2. Front bracket; 3. Casters; 4. Roller; 5. Front protective cover; 6. Air outlet; 7. Rear protective cover; 8. Blades; 9. Connecting pipe; 10. Flange; 11. Drive shaft; 12. Drive wheel; 13. Driven wheel; 14. Belt;

[0040] 61. Horizontal plate; 62. Vertical plate; 63. Fixed plate; 64. Connecting plate; 65. Bending plate; 66. Arc groove. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0042] Example 1

[0043] like Figure 1-5 As shown, this utility model provides a debris blower for cleaning up fallen leaves on lawns, comprising:

[0044] The air cavity plate 1 has rotatable blades 8 in its inner cavity and air inlets on its front and rear sides; and an air outlet 6 at its bottom.

[0045] Specifically, multiple blades 8 are arranged in a ring array. One end of the blades 8 is fixedly connected to the connecting pipe 9 by bolts, and the other end of the connecting pipe 9 is fixedly connected to the flange 10 by bolts. The flange 10 is fixedly sleeved on the output shaft. The air inlets on the front and rear sides are located on the front and rear sides of the blades 8, respectively. By increasing the area of ​​the blades 8, a larger cross-section is obtained to solve the problem of low wind power. The front and rear air inlets are respectively equipped with a front protective cover 5 and a rear protective cover 7. By designing circular air inlets on both the front and rear sides, air can be introduced from both sides, increasing the air intake to solve the problem of low wind power, and reducing the vortex in the air cavity to solve the problem of high noise in the internal cavity at high speed.

[0046] More specifically, an air supply adjustment mechanism is provided at the air outlet 6; the air supply adjustment mechanism includes a horizontal plate 61, a vertical plate 62, a fixed plate 63, a connecting plate 64, a bending plate 65, and an arc groove 66;

[0047] Two vertical plates 62 are arranged side by side and fixedly installed inside the air outlet 6; two horizontal plates 61 are arranged side by side and movably installed on the vertical plates 62.

[0048] Two horizontal plates 61 are each equipped with a fixed plate 63, which are movably connected by a connecting plate 64. The top fixed plate 63 has an arc-shaped groove 66, which is connected to a bent plate 65 by an adjusting bolt. The bent plate 65 is fixedly installed inside the air outlet 6. This air supply adjustment mechanism enables the linkage between the upper and lower horizontal plates 61. The upper fixed plate has an arc-shaped groove, and a bent plate 65 is welded to the inner wall of the air outlet. A bolt passes through a pre-drilled hole in the bent plate and can slide in the arc-shaped groove 66, which limits the adjustment angle and solves the problem of not being able to adjust the air supply angle.

[0049] The front bracket 2 contains a drive mechanism; the drive mechanism includes: a drive shaft 11, a drive wheel 12, a driven wheel 13, and a belt 14.

[0050] The drive shaft 11 is mounted on the front bracket 2 via bearings. One end of the drive shaft 11 is connected to a universal joint, and the other end of the universal joint is connected to the tractor output shaft. The tractor output shaft drives the drive shaft 11 to rotate. The other end of the drive shaft 11 is connected to the drive wheel 12. The drive wheel 12 is connected to the driven wheel 13 via a belt 14. The driven wheel 13 is mounted on the air chamber plate 1 via bearings. The driven wheel 13 is connected to the flange 10 via a connecting shaft. By increasing the diameter of the drive wheel 12, a higher transmission ratio is obtained, and a higher output shaft speed is obtained without changing the input shaft speed, driving the fan to rotate at a higher speed and solving the problem of low airflow.

[0051] The technical solution of this embodiment is as follows: When the debris blower is working, the output shaft of the tractor is started to rotate, and the output shaft of the tractor drives the drive shaft 11 to rotate. Through the drive mechanism composed of the drive wheel 12, the driven wheel 13, and the belt 14, the blades 8 connected to the flange 10 are rotated to realize the blowing operation of the debris blower; and before cleaning debris, the position of the bending plate 65 and the top fixed plate 63 are adjusted by the arc groove 66, thereby adjusting the angle of the upper and lower horizontal plates 61 and changing the air outlet angle.

[0052] Example 2

[0053] like Figure 1 As shown, the present invention provides a debris blower for cleaning fallen leaves on lawns, which further includes:

[0054] Roller 4 is installed at the bottom of the air chamber plate 1. By increasing the length and diameter of the rigid roller 4, the contact area between the roller 4 and the lawn is increased, reducing the force on the lawn per unit area and solving the problem of damaging the lawn. By wrapping the rigid roller 4 with a layer of rubber to soften the surface of the roller, the problems of damaging the lawn and excessive noise when walking are solved.

[0055] 3. The caster wheel 3 is installed at the bottom of the front bracket 2;

[0056] The working principle of this utility model is as follows: When the debris blower is working, the output shaft of the starting tractor is rotated, and the output shaft of the tractor drives the drive shaft 11 to rotate. Through the drive mechanism composed of the driving wheel 12, the driven wheel 13, and the belt 14, the blades 8 connected to the flange 10 are rotated, so as to realize the blowing work of the debris blower.

[0057] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A debris blower for clearing fallen leaves from lawns, characterized in that, include: Air cavity plate (1), with an air outlet (6) at the bottom; An air supply regulating mechanism is provided at the location of the air outlet (6); the air supply regulating mechanism includes: A vertical plate (62) is fixedly installed inside the air outlet (6), and a horizontal plate (61) is movably installed on the vertical plate (62); Two horizontal plates (61) are respectively equipped with fixed plates (63), and the two fixed plates (63) are movably connected by a connecting plate (64). The fixed plate (63) at the top is provided with an arc groove (66), and the arc groove (66) is connected to the bending plate (65) by adjusting bolts.

2. A debris blower for cleaning fallen leaves on lawns according to claim 1, characterized in that, Also includes: Front bracket (2), a drive mechanism is provided inside the front bracket (2); the drive mechanism includes: Drive shaft (11), one end of drive shaft (11) is connected to the output shaft of tractor via universal joint, the other end of drive shaft (11) is connected to drive wheel (12), drive wheel (12) is connected to driven wheel (13) via belt (14), driven wheel (13) is connected to flange (10) via connecting shaft.

3. A debris blower for cleaning fallen leaves on lawns according to claim 1, characterized in that, There are two vertical plates (62) arranged side by side.

4. A debris blower for cleaning fallen leaves on lawns according to claim 1, characterized in that, There are two horizontal plates (61) arranged side by side.

5. A debris blower for cleaning fallen leaves on lawns according to claim 1, characterized in that, The inner cavity of the air cavity plate (1) is provided with blades (8), and air inlets are provided on the front and rear sides of the air cavity plate (1); an air outlet (6) is provided at the bottom of the air cavity plate (1). The blade (8) is fixedly connected to one end of the connecting pipe (9) by bolts, and the other end of the connecting pipe (9) is fixedly connected to the flange (10) by bolts; the flange (10) is fixedly sleeved on the output shaft.

6. A debris blower for clearing fallen leaves from lawns according to claim 1, characterized in that, Air inlets are provided on the front and rear sides of the air cavity plate (1), and the air inlets on the front and rear sides are located on the front and rear sides of the blade (8).

7. A debris blower for clearing fallen leaves from lawns according to claim 1, characterized in that, Also includes: Roller (4) is installed at the bottom of the air cavity plate (1).

8. A debris blower for clearing fallen leaves from lawns according to claim 7, characterized in that, The roller (4) is provided with a rubber layer.

9. A debris blower for clearing fallen leaves from lawns according to claim 1, characterized in that, The bottom of the front bracket (2) is equipped with casters (3).