A low noise lawnmower

Abstract

The utility model provides a low noise mower relates to mower technical field, the utility model discloses a shell is installed with gyro wheel in the bottom of shell, wherein gyro wheel places in ground can drive shell to remove, the motor is installed in the inside of shell by means of support, the motor is installed with cutting knife by means of speed reducer, wherein the motor can drive cutting knife to rotate and clean the lawn, the sound insulation device is set up at the top of shell by means of auxiliary device, wherein the sound insulation device can isolate the noise of motor vibration, the sound insulation device includes sound insulation cover, the sound insulation cover is installed at the top of shell by means of auxiliary device, the top of sound insulation cover is installed with exhaust pipe, wherein the inside fixed connection of exhaust pipe has a plurality of spoon shape's sound baffle, the utility model reaches the effect of weakening the sound of motor vibration by sound insulation device, avoids the noise of mower, thereby influences people's normal rest or work.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to a lawnmower. Background Technology

[0002] During garden maintenance, machinery is needed to trim plants. Lawn mowers are commonly used in garden maintenance because they are efficient and have a high weed removal rate.

[0003] In existing technology, when a lawnmower is working, the motor inside the lawnmower drives the cutting blades to rotate and clean the grass. However, the motor generates a lot of noise when it is working, and the noise emitted by the lawnmower can seriously affect people's normal rest or work. Utility Model Content

[0004] This utility model proposes a lawnmower to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lawnmower, including a housing, with rollers installed at the bottom of the housing, wherein the rollers are placed on the ground to drive the housing to move, a motor is installed inside the housing with the aid of a bracket, and a cutting blade is installed on the motor with the aid of a reducer, wherein the motor can drive the cutting blade to rotate to clean the lawn, and a sound insulation device is installed on the top of the housing with the aid of an auxiliary device, wherein the sound insulation device can isolate the noise generated by the vibration of the motor.

[0006] The aforementioned components achieve the following effect: when mowing lawn plants, workers drive the outer casing to a suitable location using rollers, then turn on the motor. The motor drives the cutting blade to rotate through the reducer, and the cutting blade mows the lawn. At this time, the sound insulation device isolates the noise generated by the motor.

[0007] Preferably, the sound insulation device includes a sound insulation cover, which is installed on the top of the outer shell with the aid of an auxiliary device. An exhaust pipe is installed on the top of the sound insulation cover, and a plurality of spoon-shaped sound-blocking plates are fixedly connected inside the exhaust pipe. The plurality of sound-blocking plates are divided into two groups, and the sound-blocking plates in the two groups are staggered.

[0008] The aforementioned components achieve the following effects: when sound insulation of the motor is required, the soundproof cover isolates the sound generated by the motor vibration, and the exhaust pipe guides and expels the sound-producing gas inside the soundproof cover. When the gas enters the exhaust pipe, the sound-producing gas comes into contact with the sound-blocking plate. The spoon-shaped sound-blocking plate guides the gas, causing the sound-producing gas to change its direction of movement. After multiple folds, the sound-producing gas is finally discharged from the exhaust pipe, achieving the effect of reducing the sound. The sound insulation device reduces the sound generated by the motor vibration, preventing the lawnmower from making noise and thus affecting people's normal rest or work.

[0009] Preferably, the interior of the outer shell is inlaid with sound-insulating foam, wherein the sound-insulating foam covers the entire interior of the outer shell, and the sound-insulating foam is polyurethane foam.

[0010] The effect achieved by the above components is to absorb the noise generated by the motor through sound-absorbing foam, thereby reducing the occurrence of the motor's sound escaping from the casing.

[0011] Preferably, a soundproof board is fixedly connected inside the soundproof cover, and the soundproof board is a porous foam board.

[0012] The effect achieved by the above components is that the sound insulation effect of the soundproof cover is improved by setting up soundproof panels.

[0013] Preferably, a sound-absorbing plate is fixedly connected to one side of the sound-blocking plate, wherein the sound-absorbing plate is sound-absorbing cotton.

[0014] The effect achieved by the above components is that by setting up the sound-absorbing plate, the sound absorption effect of the sound-absorbing plate is improved, thereby reducing the decibel of the sound flowing out of the exhaust pipe.

[0015] Preferably, the auxiliary device is installed on the top of the housing. The auxiliary device includes a square tube, wherein the square tube is installed on the top of the housing, and the internal dimensions of the square tube are adapted to the dimensions of the soundproof cover. Mounting plates are fixedly connected to both sides of the square tube, and pads are fixed to both sides of the square tube. Mounting holes are opened on the surface of the pads, wherein the dimensions of the mounting holes are adapted to the dimensions of the mounting plates. An insert plate is slidably connected to the upper surface of the pads, wherein a slope is opened on one side of the insert plate, and an insertion hole is opened on the mounting plate corresponding to the insert plate, wherein the dimensions of the insert plate are adapted to the dimensions of the insertion hole. The two ends of the spring are fixedly connected to the support plates on the insert plate and the pads, respectively.

[0016] The aforementioned components achieve the following effect: During the installation of the soundproof enclosure, the worker moves the enclosure and places it inside the square tube. The mounting plate on the enclosure presses against the inclined surface of the insert plate, causing the insert plate to move towards the support plate. The spring deforms, and finally, the mounting plate inserts into the mounting hole of the support plate. When the insertion hole on the mounting plate moves to the position of the insert plate, the insert plate is inserted into the insertion hole of the mounting plate under the action of the spring's return force, thus achieving the effect of fixing the soundproof enclosure. The auxiliary device achieves the effect of fixing the soundproof enclosure, making it convenient for workers to replace the soundproof enclosure if it is damaged.

[0017] Preferably, one end of the mounting plate is fixedly connected to a pointed protrusion, the tip of which is far away from the mounting plate.

[0018] The effect achieved by the above-mentioned components is that the pointed protrusions make it easier for workers to insert the mounting plate into the mounting hole of the pad, thus providing convenience for workers.

[0019] Preferably, limiting members are provided on both sides of the insert plate, wherein the limiting members are fixedly connected to the pad plate.

[0020] The effect achieved by the above components is that by setting the limiting component, the direction of movement of the insert plate is restricted, preventing the insert plate from rotating and improving the stability of the insert plate movement.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] When sound insulation is required for the motor, the soundproof cover isolates the sound generated by the motor vibration, and the exhaust pipe guides and expels the sound-producing gas inside the soundproof cover. When the gas enters the exhaust pipe, the sound-producing gas comes into contact with the sound-blocking plate. The spoon-shaped sound-blocking plate guides the gas, changing the direction of the sound-producing gas. After multiple folds, the sound-producing gas is finally discharged from the exhaust pipe, achieving the effect of reducing the sound. The sound insulation device reduces the sound generated by the motor vibration, preventing the lawnmower from making noise and affecting people's normal rest or work. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the outer casing of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the soundproof cover of this utility model;

[0026] Figure 4 This is a cross-sectional view of the exhaust pipe of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the square tube of this utility model;

[0028] Figure 6 This utility model Figure 5 Enlarged view of point A.

[0029] Legend: 1. Outer shell; 2. Roller; 3. Motor; 4. Cutting blade; 5. Sound insulation device; 51. Soundproof cover; 52. Exhaust pipe; 53. Sound baffle; 54. Sound insulation foam; 55. Sound insulation board; 56. Sound absorption board; 6. Auxiliary device; 61. Square tube; 62. Pad; 63. Mounting plate; 64. Mounting hole; 65. Spring; 66. Insert plate; 67. Insertion hole; 68. Pointed protrusion; 69. Limiting component. Detailed Implementation

[0030] Reference Figure 1-6As shown, this embodiment discloses a low-noise lawnmower, including a housing 1, with rollers 2 mounted on the bottom of the housing 1, the rollers 2 being placed on the ground to drive the housing 1 to move; a motor 3, which is mounted inside the housing 1 with the aid of a bracket, and a cutting blade 4 is mounted on the motor 3 with the aid of a reducer, the motor 3 driving the cutting blade 4 to rotate and clean the lawn; and a sound insulation device 5, which is mounted on the top of the housing 1 with the aid of an auxiliary device 6, the sound insulation device 5 isolating the noise generated by the vibration of the motor 3. When mowing the lawn, the worker drives the housing 1 to a suitable location using the rollers 2, then turns on the motor 3, the motor 3 driving the cutting blade 4 to rotate through the reducer, the cutting blade 4 mowing the lawn, and at this time the sound insulation device 5 isolates the noise generated by the motor 3.

[0031] Reference Figure 1-6 As shown, the sound insulation device 5 includes a sound insulation cover 51, which is installed on the top of the outer casing 1 with the aid of an auxiliary device 6. An exhaust pipe 52 is installed on the top of the sound insulation cover 51, and several spoon-shaped sound-absorbing plates 53 are fixedly connected inside the exhaust pipe 52. The sound-absorbing plates 53 are divided into two groups, and the sound-absorbing plates 53 in the two groups are staggered. When sound insulation of the motor 3 is required, the sound insulation cover 51 isolates the sound generated by the vibration of the motor 3, and the exhaust pipe 52 guides and exhausts the sound-producing gas inside the sound insulation cover 51. When the gas enters the exhaust pipe 52, the sound-producing gas comes into contact with the sound-absorbing plates 53. The spoon-shaped sound-absorbing plates 53 guide the gas, changing the direction of movement of the sound-producing gas. After multiple folds, the sound-producing gas is finally discharged from the exhaust pipe 52, achieving the effect of reducing the sound. The sound insulation device 5 achieves the effect of weakening the sound generated by the vibration of the motor 3, preventing the lawnmower from making noise and affecting people's normal rest or work.

[0032] Reference Figure 1-6 As shown, the interior of the outer casing 1 is inlaid with sound-absorbing foam 54, which fills the entire interior of the outer casing 1. The sound-absorbing foam 54 is made of polyurethane foam. The sound-absorbing foam 54 absorbs the noise generated by the motor 3, thereby reducing the leakage of sound from the outer casing 1. A sound-absorbing board 55, which is a porous foam board, is fixedly connected inside the soundproof cover 51. The sound-absorbing board 55 improves the sound insulation effect of the soundproof cover 51. A sound-absorbing board 56, which is made of sound-absorbing cotton, is fixedly connected to one side of the sound-damping board 53. The sound-absorbing board 56 improves the sound absorption effect of the sound-damping board 53, thereby reducing the decibel level of sound emanating from the exhaust pipe 52.

[0033] Reference Figure 1-6As shown, the auxiliary device 6 is installed on the top of the outer casing 1. The auxiliary device 6 includes a square tube 61, which is installed on the top of the outer casing 1. The internal dimensions of the square tube 61 are adapted to the dimensions of the soundproof cover 51. Mounting plates 63 are fixedly connected to both sides of the square tube 61, and pads 62 are fixed to both sides of the square tube 61. Mounting holes 64 are opened on the surface of the pads 62, and the dimensions of the mounting holes 64 are adapted to the dimensions of the mounting plates 63. Insert plate 66 and insertion hole 67 are provided. Insert plate 66 is slidably connected to the upper surface of pad 62. A ramp is opened on one side of insert plate 66. Insert hole 67 is opened on mounting plate 63 corresponding to insert plate 66, and the dimensions of insert plate 66 are adapted to the dimensions of insertion hole 67. Spring 65 is provided. The two ends of spring 65 are fixedly connected to the support plates on insert plate 66 and pad 62, respectively. During the installation of the soundproof cover 51, the staff moves the soundproof cover 51 and places it inside the square tube 61. The mounting plate 63 on the soundproof cover 51 presses against the inclined surface of the insert plate 66, and the insert plate 66 moves towards the support plate of the pad 62. The spring 65 deforms, and finally the mounting plate 63 is inserted into the mounting hole 64 of the pad 62. When the insertion hole 67 on the mounting plate 63 moves to the position of the insert plate 66, under the action of the spring 65's return force, the insert plate 66 is inserted into the insertion hole 67 of the mounting plate 63, thus achieving the effect of fixing the soundproof cover 51. The auxiliary device 6 achieves the effect of fixing the soundproof cover 51, making it convenient for the staff to replace the soundproof cover 51 if it is damaged.

[0034] Reference Figure 1-6 As shown, a pointed protrusion 68 is fixedly connected to one end of the mounting plate 63, with the tip of the protrusion 68 away from the mounting plate 63. The pointed protrusion 68 facilitates the insertion of the mounting plate 63 into the mounting hole 64 of the pad 62, providing convenience for the operator. Limiting elements 69 are provided on both sides of the insertion plate 66, and these limiting elements 69 are fixedly connected to the pad 62. The limiting elements 69 restrict the movement direction of the insertion plate 66, preventing rotation and improving its stability.

[0035] Working principle: When mowing lawn plants, the worker drives the outer casing 1 to a suitable position using roller 2. At this time, the motor 3 is turned on, and the motor 3 drives the cutting blade 4 to rotate through the reducer. The cutting blade 4 mows the lawn. When sound insulation is required for the motor 3, the sound insulation plate 55 on the sound insulation cover 51 isolates the sound generated by the vibration of the motor 3. The exhaust pipe 52 guides and exhausts the sound-producing gas inside the sound insulation cover 51. When the gas enters the exhaust pipe 52, the sound-producing gas comes into contact with the sound-absorbing cotton on the sound baffle 53. The spoon-shaped sound baffle 53 guides the gas, changing the direction of the sound-producing gas. After multiple folds, the sound-producing gas is finally discharged from the exhaust pipe 52, achieving the effect of reducing the sound. The sound insulation device 5 achieves the effect of weakening the sound generated by the vibration of the motor 3, preventing the lawnmower from making noise and affecting people's normal rest or work.

[0036] During the installation of the soundproof cover 51, the staff moves the soundproof cover 51 and places it inside the square tube 61. The mounting plate 63 on the soundproof cover 51 presses against the inclined surface of the insert plate 66, and the insert plate 66 moves towards the support plate of the pad 62. The spring 65 deforms, and finally the mounting plate 63 is inserted into the mounting hole 64 of the pad 62 with the help of the pointed protrusion 68. When the insertion hole 67 on the mounting plate 63 moves to the position of the insert plate 66, under the action of the spring 65's return force, the insert plate 66 is inserted into the insertion hole 67 of the mounting plate 63, thus achieving the effect of fixing the soundproof cover 51. The auxiliary device 6 achieves the effect of fixing the soundproof cover 51, making it convenient for the staff to replace the soundproof cover 51 if it is damaged.

Claims

1. A low noise lawn mower characterised in that: Including the shell (1), the bottom of the shell (1) is provided with a roller (2), wherein the roller (2) is placed on the ground to drive the shell (1) to move; A motor (3) is mounted inside the shell (1) by a support, and the motor (3) is provided with a cutting knife (4) by a speed reducer, wherein the motor (3) can drive the cutting knife (4) to rotate to clean the lawn; A sound insulation device (5) is provided on the top of the shell (1) by an auxiliary device (6), wherein the sound insulation device (5) can isolate the noise generated by the vibration of the motor (3); the sound insulation device (5) comprises a sound insulation cover (51) mounted on the top of the shell (1) by the auxiliary device (6), a exhaust pipe (52) is mounted on the top of the sound insulation cover (51), wherein a plurality of spoon-shaped sound baffles (53) are fixedly connected inside the exhaust pipe (52), a plurality of the sound baffles (53) are equally divided into two groups, wherein the sound baffles (53) in the two groups are staggered; the inside of the shell (1) is inlaid with sound insulation foam (54), wherein the sound insulation foam (54) covers the inside of the shell (1), and the sound insulation foam (54) is polyurethane foam.

2. A low noise mower as claimed in claim 1 wherein: The inside of the sound insulation cover (51) is fixedly connected with a sound insulation board (55), and the sound insulation board (55) is a porous foam board.

3. A low noise mower as claimed in claim 2 wherein: One side of the sound baffle (53) is fixedly connected with a sound absorbing board (56), wherein the sound absorbing board (56) is sound absorbing cotton.

4. A low noise lawn mower as claimed in claim 1 wherein: The auxiliary device (6) is mounted on the top of the shell (1), and the auxiliary device (6) comprises a square tube (61), wherein the square tube (61) is mounted on the top of the shell (1), the inside dimension of the square tube (61) is matched with the dimension of the sound insulation cover (51), both sides of the square tube (61) are fixedly connected with mounting plates (63), both sides of the square tube (61) are fixedly connected with backing plates (62), and mounting holes (64) are formed in the surface of the backing plates (62), wherein the dimension of the mounting holes (64) is matched with the dimension of the mounting plates (63); A plug plate (66) and a plug hole (67) are arranged, the plug plate (66) is slidably connected to the upper surface of the backing plate (62), one side of the plug plate (66) is provided with an inclined slope, the mounting plate (63) is provided with the plug hole (67) corresponding to the plug plate (66), and the dimension of the plug plate (66) is matched with the dimension of the plug hole (67); A spring (65) is fixedly connected between the plug plate (66) and the backing plate (62).

5. A low noise mower as claimed in claim 4 wherein: One end of the mounting plate (63) is fixedly connected with a sharp convex (68), and the tip of the sharp convex (68) is away from the mounting plate (63).

6. A low noise mower as claimed in claim 5 wherein: Both sides of the plug plate (66) are provided with limit pieces (69), wherein the limit pieces (69) are fixedly connected with the backing plate (62).

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