Motor height adjustment device and lawnmower

Abstract

The utility model discloses a motor height adjusting device and mower, motor height adjusting device includes a device casing, a motor casing, a threaded column, a guide device and a bearing, be equipped with motor in the motor casing, and the front end of motor casing is equipped with the screw hole matched with threaded column, be equipped with the mounting hole matched with the shape of motor casing in the device casing, the motor casing is located in the mounting hole through the guide device, and the direction of the guide device is parallel with the axial direction of threaded column, the bottom of threaded column is connected with the bottom of mounting hole through the bearing, and the top of threaded column is equipped with knob, and the knob drives screw column to rotate, and the screw column rotates in the screw hole and drives motor casing to move upwards or downwards. The application can adjust the height of motor, thereby reach the height of adjusting motor front end props, blade and other devices, and the structure is firm and stable, and is suitable for high -power electric appliance product.

Description

Technical Field

[0001] This utility model relates to a motor height adjustment device and a lawnmower. Background Technology

[0002] As a core piece of garden machinery, lawnmowers are 8 to 10 times more efficient than manual weeding, with lower seedling damage and higher cleanliness. Their technological development has evolved from human-powered to intelligent. Early lawnmowers relied mainly on human power or animal traction, resulting in low efficiency and high labor intensity. In the mid-19th century, the first mechanical lawnmower was invented, employing a rotating blade design, laying the foundation for the basic working principle of modern lawnmowers. In the early 20th century, with the maturity of internal combustion engine technology, gasoline-powered lawnmowers rapidly became widespread, significantly improving operational efficiency, but also suffering from problems such as high noise and pollution. In the late 20th century, electric lawnmowers began to emerge. Initially limited by the inconvenience of wired power supply, true wireless freedom of operation was only achieved with breakthroughs in battery technology.

[0003] Existing lawnmowers do not allow for easy adjustment of blade height, and the blades are not always fixed, posing a safety hazard. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of existing lawnmowers, such as the inability to conveniently adjust the height of the lawnmower blades, unstable blade fixing, and potential safety hazards. The present invention provides a motor height adjustment device and lawnmower that can adjust the height of the motor, thereby adjusting the height of the front-end props, blades, and other components of the motor. The device has a robust and stable structure and is suitable for high-power electrical products.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A motor height adjustment device, characterized in that the motor height adjustment device includes a device housing, a motor housing, a threaded column, a guide device, and a bearing.

[0007] The motor housing contains a motor, and the front end of the motor housing has a threaded hole that matches the threaded post.

[0008] The device housing has a mounting hole that matches the shape of the motor housing. The motor housing is positioned in the mounting hole via the guide device, and the guiding direction of the guide device is parallel to the axial direction of the threaded column.

[0009] The bottom of the threaded column is connected to the bottom of the mounting hole via the bearing. A knob is provided above the threaded column. The knob drives the threaded column to rotate. The rotation of the threaded column in the threaded hole causes the motor housing to move up or down.

[0010] Preferably, the motor height adjustment device is used for a lawnmower, and the bottom of the device housing is provided with a lawnmower blade, which is fixed to the rotor of the motor.

[0011] Preferably, the motor housing includes a housing body, the guiding device includes a guide protrusion, the guide protrusion is disposed on both sides of the housing body, and the mounting hole is provided with guide grooves that match the guide protrusions on both sides, and the guide protrusions are installed in the guide grooves.

[0012] Preferably, a mounting protrusion is provided on the front side of the housing body, the screw hole is provided in the mounting protrusion, and both the mounting protrusion and the guide protrusion are located on the top of the housing body.

[0013] Preferably, a guide protrusion is provided on each side of the mounting protrusion, and a guide protrusion is provided on each side of the housing body.

[0014] Preferably, the guiding device includes a guide post, and each guide groove is provided with a guide post. The bottom of the guide post is located at the bottom of the device housing. The guide protrusion is provided with a through hole that matches the guide post. A return spring is provided on the guide post between the bottom of the device housing and the guide protrusion.

[0015] Preferably, the inner ring of the bearing is fixed to the threaded post, and the outer ring of the bearing is fixed to the bottom of the mounting hole.

[0016] This utility model also provides a lawnmower, characterized in that the lawnmower includes a motor height adjustment device as described in the present invention.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0018] The positive and progressive effects of this utility model are as follows:

[0019] This application can adjust the height of the motor, thereby adjusting the height of the motor front end props, blades and other components. The structure is robust and stable, making it suitable for high-power electrical products. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the motor height adjustment device according to Embodiment 1 of this utility model.

[0021] Figure 2 This is another structural schematic diagram of the motor height adjustment device of Embodiment 1 of this utility model.

[0022] Figure 3 This is another structural schematic diagram of the motor height adjustment device of Embodiment 1 of this utility model. Detailed Implementation

[0023] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0024] Example 1

[0025] In this embodiment, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] See Figures 1 to 3 This embodiment provides a lawnmower.

[0027] The lawnmower includes a motor height adjustment device, which can be the main body of the lawnmower, including a motor, a cutting mechanism, an energy storage mechanism, etc.

[0028] The motor height adjustment device includes a device housing 11, a motor housing 12, a threaded post 13, a guide device, and a bearing 15.

[0029] The motor housing contains a motor, and the front end of the motor housing has a screw hole 16 that matches the threaded post 13.

[0030] exist Figure 1 and Figure 2 The middle front refers to the left side of the image.

[0031] The device housing has a mounting hole that matches the shape of the motor housing. The motor housing is positioned in the mounting hole via the guide device, and the guiding direction of the guide device is parallel to the axial direction of the threaded column.

[0032] The bottom of the threaded column is connected to the bottom of the mounting hole via the bearing. A knob is provided above the threaded column. The knob drives the threaded column to rotate. The rotation of the threaded column in the threaded hole causes the motor housing to move up or down.

[0033] The bottom of the device housing is provided with a lawnmower blade 17, which is fixed to the rotor of the motor.

[0034] The motor housing 12 includes a housing body 121, and the guiding device includes a guide protrusion 122. The guide protrusion is provided on both sides of the housing body, and the two sides of the mounting hole are provided with guide grooves 141 that match the guide protrusion. The guide protrusion is installed in the guide groove 141.

[0035] A mounting protrusion 123 is provided on the front side of the housing body 121, and the screw hole is provided in the mounting protrusion. Both the mounting protrusion and the guide protrusion are located on the top of the housing body.

[0036] Each side of the mounting protrusion is provided with a guide protrusion 122, and each side of the housing body is provided with a guide protrusion.

[0037] The guiding device includes a guide post 142, and each guide groove is provided with a guide post. The bottom of the guide post is located at the bottom of the device housing. The guide protrusion is provided with a through hole 124 that matches the guide post. A return spring 143 is provided on the guide post between the bottom of the device housing and the guide protrusion.

[0038] The inner ring of the bearing is fixed to the threaded post, and the outer ring of the bearing is fixed to the bottom of the mounting hole.

[0039] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A motor height adjustment device, characterized in that, The motor height adjustment device includes a device housing, a motor housing, a threaded post, a guide device, and a bearing. The motor housing contains a motor, and the front end of the motor housing has a threaded hole that matches the threaded post. The device housing has a mounting hole that matches the shape of the motor housing. The motor housing is positioned in the mounting hole via the guide device, and the guiding direction of the guide device is parallel to the axial direction of the threaded column. The bottom of the threaded column is connected to the bottom of the mounting hole via the bearing. A knob is provided above the threaded column. The knob drives the threaded column to rotate. The rotation of the threaded column in the threaded hole causes the motor housing to move up or down.

2. The motor height adjustment device as described in claim 1, characterized in that, The motor height adjustment device is used for a lawnmower. The bottom of the device housing is equipped with a lawnmower blade, which is fixed to the rotor of the motor.

3. The motor height adjustment device as described in claim 1, characterized in that, The motor housing includes a housing body, the guiding device includes a guide protrusion, the guide protrusion is provided on both sides of the housing body, and the mounting hole is provided on both sides with guide grooves that match the guide protrusion, and the guide protrusion is installed in the guide groove.

4. The motor height adjustment device as described in claim 3, characterized in that, The front side of the housing body is provided with a mounting protrusion, and the screw hole is provided in the mounting protrusion. Both the mounting protrusion and the guide protrusion are located at the top of the housing body.

5. The motor height adjustment device as described in claim 4, characterized in that, Each side of the mounting protrusion is provided with a guide protrusion, and each side of the housing body is provided with a guide protrusion.

6. The motor height adjustment device as described in claim 5, characterized in that, The guiding device includes a guide post, and each guide groove has a guide post. The bottom of the guide post is located at the bottom of the device housing. The guide protrusion has a through hole that matches the guide post. A return spring is provided on the guide post between the bottom of the device housing and the guide protrusion.

7. The motor height adjustment device as described in claim 1, characterized in that, The inner ring of the bearing is fixed to the threaded post, and the outer ring of the bearing is fixed to the bottom of the mounting hole.

8. A lawnmower, characterized in that, The lawnmower includes a motor height adjustment device as described in any one of claims 1 to 7.

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