Mowing structure with tensioning structure

By incorporating positioning bars and the sliding mechanism between the motor and the positioning bars within the lawnmower structure, and adjusting the distance between the motor and the fixed base using adjusting bolts, the problem of loose transmission belts is solved, thereby improving the lawnmower's working efficiency and reliability.

CN223694347UActive Publication Date: 2025-12-23NINGBO NONGBANG AGRI MASCH CO LTD
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Patent Information

Application Number
CN202520260291.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-23
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

The drive belt of a traditional lawnmower will loosen after working for a period of time, which will cause the motor and the shaft to lose tension, affecting mowing efficiency and increasing the failure rate.

Method used

A grass-cutting structure with a tensioning mechanism was designed. By setting a first positioning strip and a second positioning strip on the outer shell, the motor can slide along them, and the distance between the motor and the fixed seat can be adjusted by adjusting the adjusting bolt to achieve the tensioning of the transmission belt.

Benefits of technology

It enables convenient tensioning of the drive belt, improves the working efficiency of the lawnmower, and reduces the failure rate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223694347U_ABST
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Abstract

The mowing structure with the tensioning structure comprises a shell, a motor, a rotating shaft and a blade, the motor and the rotating shaft are installed on the shell, the motor and the rotating shaft are connected through a transmission belt, the blade is installed on the rotating shaft, a first positioning strip and a second positioning strip are installed on the shell respectively, and the first positioning strip is connected with the second positioning strip. The first positioning strip is parallel to the second positioning strip, the motor is installed between the first positioning strip and the second positioning strip, the motor can move in the direction of the first positioning strip or the second positioning strip, a fixing seat is installed on the shell, an adjusting bolt is installed on the fixing seat, and the adjusting bolt is connected with the motor. And the adjusting bolt is used for adjusting the distance between the motor and the fixed seat. The motor can slide between the first positioning strip and the second positioning strip by rotating the adjusting bolt, so that the distance between the motor and the fixed seat is adjusted, and the transmission belt is tensioned.
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Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially, it is a kind of mowing structure with tensioning structure. BACKGROUND

[0002] Mower is mainly used for the trimming and maintenance of lawn, mainly including walking mechanism, connecting mechanism and mowing structure. Mowing is installed on walking mechanism by connecting mechanism. Mower can be driven by walking mechanism to move on lawn. Mowing structure is generally rotated by the blade on the shaft driven by motor to realize the trimming of lawn. But the transmission belt between motor and shaft will be loose after working for a period of time in the actual working process of mower, and the traditional installation mode cannot realize the tensioning of transmission belt after loosening, which affects the mowing efficiency of mower, and also increases the failure rate of mower. SUMMARY

[0003] In order to solve the above technical problem, the utility model provides a kind of mowing structure with tensioning structure, with the characteristics of the transmission belt between motor and shaft is conveniently tensioned.

[0004] In order to solve the above technical problem, the utility model provides a kind of mowing structure with tensioning structure, including shell, motor, shaft and blade, the motor and the shaft are installed on shell, the motor and the shaft are connected by transmission belt, the blade is installed on the shaft, the shell is respectively equipped with first positioning strip and second positioning strip, the first positioning strip and the second positioning strip are parallel, the motor is installed between the first positioning strip and the second positioning strip, the motor can move along the direction of the first positioning strip or the second positioning strip, the shell is installed with fixed seat, the fixed seat is installed with adjusting bolt, and the adjusting bolt is used to adjust the distance between motor and fixed seat.

[0005] Through the above technical scheme, the motor can be slid between the first positioning strip and the second positioning strip by rotating the adjusting bolt, so as to adjust the distance between the motor and the fixed seat, so as to realize the tensioning of transmission belt.

[0006] Preferably, the shell includes top plate, left side plate, right side plate and back plate, the motor is installed above the top plate, the first positioning strip and the second positioning strip are installed on the top plate, and the two ends of the shaft are respectively installed on the left side plate and the right side plate.

[0007] Through the above technical scheme, the broken grass cut by mower can be blocked by top plate, to prevent it from polluting motor.

[0008] Preferably, the motor is mounted on the shell through a mounting base, the motor is fixedly connected with the mounting base, the mounting base is fixed on the shell through a bolt and a nut, a long strip-shaped through hole is arranged on the shell, the length direction of the long strip-shaped through hole is parallel to the direction of the first positioning strip, and the bolt passes through the long strip-shaped through hole and can move along the length direction of the long strip-shaped through hole.

[0009] Through the technical scheme, the tensioning can be controlled more conveniently, and specifically, when tensioning is needed, the bolt is loosened, then the bolt is adjusted to a proper position, and then the bolt is tightened to fix.

[0010] Preferably, a through groove is arranged on the left side plate and the right side plate of the shaft mounting position respectively, the shaft is fixed on the left side plate and the right side plate through a connecting plate respectively, and the width of the connecting plate is greater than the width of the through groove.

[0011] Through the technical scheme, the blade can be mounted on the shaft, and then the shaft can be mounted into the left side plate and the right side plate from the through groove, compared with the traditional method of mounting the shaft on the left side plate and the right side plate by punching, the inconvenience caused by mounting the blade on the shaft in the shell is avoided.

[0012] Preferably, the connecting plate is fixed with the left side plate or the right side plate through a bolt.

[0013] Through the technical scheme, the mounting height of the shaft on the left side plate or the right side plate can be adjusted by loosening the bolt.

[0014] Preferably, a supporting table is mounted on the left side plate and the right side plate respectively.

[0015] Through the technical scheme, the supporting table can contact the lawn ground to support the shell.

[0016] Preferably, the supporting table is connected with the left side plate or the right side plate through a connecting piece, and a plurality of height adjusting holes are arranged on the connecting piece.

[0017] Through the technical scheme, the mounting table can be mounted on the left side plate or the right side plate through different holes to adjust the height of the supporting table.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The motor can be slid between the first positioning strip and the second positioning strip by rotating the adjusting bolt, so that the distance between the motor and the fixing seat is adjusted, and the transmission belt is tensioned.

[0020] 2. Through slots are provided on the left and right side plates at the shaft mounting location. After the blade is installed on the shaft, the shaft can be inserted into the left and right side plates through the through slots. Compared with the traditional method of drilling holes in the left and right side plates to install the shaft, this avoids the inconvenience of first installing the shaft on the outer casing and then installing the blade on the shaft inside the outer casing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of 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. Wherein:

[0022] Fig. 1 This is a schematic diagram of the structure of Example 1;

[0023] Fig. 2 This is a bottom view of Example 1;

[0024] Fig. 3 This is the front view of Example 1;

[0025] 1. Outer shell, 11. Top plate, 12. Left side plate, 13. Right side plate, 14. Rear baffle, 15. Long strip through hole, 16. Through groove, 2. Motor, 21. Mounting base, 3. Rotating shaft, 31. Connecting plate, 4. Blade, 5. First positioning strip, 6. Second positioning strip, 7. Fixing base, 8. Adjusting bolt, 9. Support platform, 91. Connecting piece, 10. Transmission belt. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0028] like Figs. 1-3As shown, a lawnmower with a tensioning structure includes a housing 1, a motor 2, a shaft 3, and blades 4. The housing 1 includes a top plate 11, a left side plate 12, a right side plate 13, and a rear baffle 14. The motor 2 is mounted above the top plate 11, and the two ends of the shaft 3 are respectively mounted on the left side plate 12 and the right side plate 13. The motor 2 and the shaft 3 are connected by a transmission belt 10, and the blades 4 are mounted on the shaft 3. A first positioning strip 5 and a second positioning strip 6 are respectively mounted on the top plate 11, the first positioning strip 5 and the second positioning strip 6 being parallel. The motor 2 is mounted between the first positioning strip 5 and the second positioning strip 6, and the motor 2 can move along either the first positioning strip 5 or the second positioning strip 6. A fixing seat 7 is mounted on the housing 1, and an adjusting bolt 8 is mounted on the fixing seat 7. The adjusting bolt 8 is used to adjust the distance between the motor 2 and the fixing seat 7.

[0029] In a further embodiment of this invention, the motor 2 is mounted on the housing 1 via a mounting base 21, and the motor 2 is fixedly connected to the mounting base 21. The mounting base 21 is fixed to the housing 1 by bolts and nuts. The housing 1 is provided with an elongated through hole 15, the length direction of which is parallel to the direction of the first positioning strip 11. The bolt passes through the elongated through hole 15 and can move along the length direction of the elongated through hole 15.

[0030] In a further embodiment of this invention, through slots 16 are respectively provided on the left side plate 12 and the right side plate 13 where the rotating shaft 3 is installed. The rotating shaft 3 is fixed on the left side plate 12 and the right side plate 13 respectively by connecting plates 31, the width of which is greater than the width of the through slots 16.

[0031] In a further embodiment of this invention, the connecting plate 31 is fixed to the left side plate 12 or the right side plate 13 by bolts.

[0032] In a further embodiment of this invention, support platforms 9 are respectively installed on the left side plate 12 and the right side plate 13.

[0033] In a further embodiment of this invention, the support platform 9 is connected to the left side plate 12 or the right side plate 13 via a connector 91, and the connector 91 is provided with a plurality of height adjustment holes.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lawnmower structure with a tensioning mechanism, characterized in that: The device includes a housing (1), a motor (2), a rotating shaft (3), and a blade (4). The motor (2) and the rotating shaft (3) are mounted on the housing (1). The motor (2) and the rotating shaft (3) are connected by a transmission belt (10). The blade (4) is mounted on the rotating shaft (3). A first positioning strip (5) and a second positioning strip (6) are respectively mounted on the housing (1). The first positioning strip (5) and the second positioning strip (6) are parallel. The motor (2) is mounted between the first positioning strip (5) and the second positioning strip (6). The motor (2) can move along the direction of the first positioning strip (5) or the second positioning strip (6). A fixed seat (7) is mounted on the housing (1). An adjusting bolt (8) is mounted on the fixed seat (7). The adjusting bolt (8) is used to adjust the distance between the motor (2) and the fixed seat (7).

2. The lawnmower structure with tensioning structure according to claim 1, characterized in that: The outer casing (1) includes a top plate (11), a left side plate (12), a right side plate (13) and a rear baffle (14). The motor (2) is mounted above the top plate (11). The first positioning bar (5) and the second positioning bar (6) are mounted on the top plate (11). The two ends of the rotating shaft (3) are respectively mounted on the left side plate (12) and the right side plate (13).

3. The lawnmower structure with tensioning structure according to claim 1, characterized in that: The motor (2) is mounted on the housing (1) via a mounting base (21). The motor (2) is fixedly connected to the mounting base (21). The mounting base (21) is fixed to the housing (1) by bolts and nuts. The housing (1) is provided with an elongated through hole (15). The length direction of the elongated through hole (15) is parallel to the direction of the first positioning strip (5). The bolt passes through the elongated through hole (15) and can move along the length direction of the elongated through hole (15).

4. The lawnmower structure with tensioning structure according to claim 2, characterized in that: Through slots (16) are respectively provided on the left side plate (12) and right side plate (13) where the rotating shaft (3) is installed. The rotating shaft (3) is fixed on the left side plate (12) and right side plate (13) respectively by connecting plates (31). The width of the connecting plate (31) is greater than the width of the through slot (16).

5. The lawnmower structure with tensioning structure according to claim 4, characterized in that: The connecting plate (31) is fixed to the left side plate (12) or the right side plate (13) by bolts.

6. The lawnmower structure with tensioning structure according to claim 2, characterized in that: Support platforms (9) are respectively installed on the left side plate (12) and the right side plate (13).

7. The lawnmower structure with tensioning structure according to claim 6, characterized in that: The support platform (9) is connected to the left side plate (12) or the right side plate (13) via a connector (91), and the connector (91) is provided with a plurality of height adjustment holes.