CN217790371U

CN217790371U - Grass cutter

Info

Publication number: CN217790371U
Application number: CN202221994793.XU
Authority: CN
Inventors: 魏基栋; 陈少杰
Original assignee: Agilex Robotics Shenzhen Lt
Current assignee: Agilex Robotics Shenzhen Lt
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-11-15
Anticipated expiration: 2032-07-28

Abstract

The utility model provides a mower, mower includes chassis and first casing. The first shell and the chassis are mutually buckled to form an accommodating space. The first shell is provided with a partition board which is connected with the chassis in a sealing mode, the partition board divides the accommodating space into a first cavity and a second cavity which surrounds the first cavity, an electrical element is arranged in the first cavity, and a non-electrical element is arranged in the second cavity. The utility model provides a be formed with an accommodating space between first casing and the chassis in the lawn mower, be provided with on the first casing with chassis sealing connection's baffle, and pass through the baffle will accommodating space separates into first cavity and second cavity. The electric element is arranged in the first cavity, and the mower can effectively prevent external moisture from entering the first cavity through the second cavity and the partition plate, so that the electric element in the first cavity is prevented from being damped or entering water.

Description

Grass cutter

Technical Field

The utility model relates to a grass cutting device technical field especially relates to a lawn mower.

Background

The internal electrical components of the existing lawn mowers can cause the lawn mowers to malfunction after being affected with damp or water.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mower to avoid the problem that the electric elements on the mower wet or intake and break down.

The utility model provides a mower, mower includes chassis and first casing. The first shell and the chassis are mutually buckled to form an accommodating space. The first shell is provided with a partition board which is connected with the chassis in a sealing mode, the partition board divides the accommodating space into a first cavity and a second cavity which surrounds the first cavity, an electrical element is arranged in the first cavity, and a non-electrical element is arranged in the second cavity.

The utility model provides a be formed with an accommodating space between first casing and the chassis in the lawn mower, be provided with on the first casing with chassis sealing connection's baffle, and pass through the baffle will accommodating space separates into first cavity and second cavity. Because the second cavity surrounds the first cavity, and the electric element is arranged in the first cavity, the mower can effectively prevent external moisture from entering the first cavity through the second cavity and the partition plate, so that the electric element in the first cavity is prevented from being damped or entering water.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic partial structure diagram of a mower according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of a first viewing angle of a mower according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a second perspective of a mower according to an embodiment of the present invention.

Fig. 4 is an enlarged view at a in fig. 3.

Fig. 5 is an enlarged view at B in fig. 3.

Fig. 6 is an enlarged view at C in fig. 3.

Description of the main elements

Mower 10

Chassis 100

Boss 101

The main body 110

Baffle 111

Extension 120

First extension 121

Second extension 122

Attaching surface 1221

Projection 1222

Gap 1223

Groove part 123

Mounting hole 130

First housing 210

Partition 211

Open slot 212

Second housing 220

First cavity 201

Second cavity 202

Third cavity 203

First seal 310

Second seal 320

Third seal 330

Seal groove 301

Power supply 411

Controller 412

Cutting motor 413

Protective cover 414

Connecting projection 415

Connecting part 416

Pressure plate 417

Step 418

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The drawings are for illustrative purposes only and are merely schematic representations, not intended to limit the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

It should be noted that the terms "first", "second", and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

Referring to fig. 1 and 2, an embodiment of the present invention provides a lawn mower 10. The mower 10 comprises a chassis 100 and a first housing 210. The first housing 210 and the chassis 100 are fastened to each other to form an accommodating space. The first housing 210 is provided with a partition 211 for sealing connection with the chassis 100. The partition 211 divides the receiving space into a first cavity 201 and a second cavity 202 disposed around the first cavity 201. Wherein, an electric element is arranged in the first cavity 201, and a non-electric element is arranged in the second cavity 202. In this embodiment, the second cavity 202 may play a role of providing a first heavy protection for the first cavity 201, and the partition 211 may play a role of providing a second heavy protection for the first cavity 201, so that the first cavity 201 has a double protection function, and external moisture is effectively prevented from entering the first cavity, thereby preventing the electrical elements in the first cavity from being affected with damp or water. The sealed connection of the partition 211 with the chassis can form a sealed space in the first cavity 201, so as to prevent the entry of the pollutants from the outside of the mower 10 into the first cavity 201. Wherein the pollutant can be water, soil, grass clippings, and the like.

Referring to fig. 3 and 4, the edge of the first housing 210 and the edge of the chassis 100 abut against each other. The chassis 100 includes a main body portion 110 and an extension portion 120 extending from an edge of the main body portion 110 toward a side facing away from the first housing 210. The peripheral edge of the first housing 210 is attached to the peripheral edge of the extension portion 120 away from the main body portion 110. The connection point of the first housing 210 and the extension portion 120 is located on the side of the main body portion 110 facing away from the first housing 210. Specifically, the extension 120 includes a first extension segment 121 and a second extension segment 122. The first extension segment 121 extends from an edge of the main body portion 110 toward a direction away from the first housing 210. The second extending section 122 extends from one end of the first extending section 121 away from the main body portion 110 toward the first shell 210, and the second extending section 122 is located on one side of the first extending section 121 away from the center of the main body portion 110. The extending direction of the second extending section 122 is arranged to cross the extending direction of the first extending section 121. A groove portion 123 is formed between the first extension segment 121 and the second extension segment 122, and an opening of the groove portion 123 faces the first housing 210. The groove portion 123 can store water in the groove portion 123 after the mower 10 is accidentally filled with water, so that water is prevented from entering other areas of the mower 10.

The first shell 210 is fastened to an end of the second extending section 122 away from the first extending section 121. One end of the second extending section 122, which faces away from the first extending section 121, is provided with an abutting surface 1221 facing the first casing 210, and an edge of the first casing 210 abuts against the abutting surface 1221 to form a first heavy protection for the first cavity 201. Optionally, a sealing member is interposed between the first housing 210 and the abutting surface 1221 to improve the sealing property between the first housing 210 and the abutting surface 1221. In an embodiment, the extension length of the first extension section 121 is greater than that of the second extension section 122, so that the abutting surface 1221 is located on a side of the main body portion 110 facing away from the first housing 210. When the joint between the abutting surface 1221 and the first housing 210 is accidentally unprotected, moisture entering the second housing 202 from the joint is stored in the groove 123, and when the groove 123 is filled with moisture, excess moisture flows out of the joint to the outside of the lawnmower 10, so that the moisture from the outside is prevented from reaching the main body 110 and the second housing 202 is prevented from being filled with the moisture.

The abutting surface 1221 is provided with a protrusion 1222 protruding toward the first housing 210, the first housing 210 is provided with a groove matching with the protrusion 1222, and the protrusion 1222 is disposed in the groove. The groove is opened from one side of the first casing 210 facing the first extending section 121 to one side away from the first extending section 121, and does not penetrate through the first casing 210. The protrusion 1222 is spaced from the inner wall surface of the groove by a side surface of the protrusion 1222 facing away from the first extending section 121, and forms a gap 1223. The gap 1223 can prevent a capillary structure from being formed between the side surface of the protrusion 1222 and the inner wall surface, so that external moisture is prevented from entering the second cavity 202 due to a capillary phenomenon. It should be noted that the capillary structure formed between the first housing 210 and the abutting surface 1221 is broken by the gap 1223 near the protrusion 1222, so that only a small amount of moisture can reach the gap 1223, and the moisture is blocked by the protrusion 1222 after reaching the gap 1223, and cannot further enter the second cavity 202.

Preferably, the outer side edge of the first housing 210 defines an opening groove 212, and the groove wall of the opening groove 212 opposite to the attachment surface 1221 is spaced from the attachment surface 1221 to form an opening. The opening may be used to facilitate removal of the first housing 210 from the chassis 100 by a technician or may be used to provide mounting sites for other components on the lawnmower 10.

Referring to fig. 3 and 5, in the present embodiment, a baffle 111 is protruded at a position on the chassis 100 corresponding to the partition 211, and the baffle 111 abuts against and seals the partition 211 to form a second protection for the first cavity 201. The baffle 111 is protruded from the body 110. The partition 211 extends from the first housing 210 toward one side surface of the chassis 100 in a direction of the chassis 100. Preferably, the thickness of the partition 211 is greater than the thickness of the first housing 210 at other positions, so that the partition 211 can better support the first housing 210. The partition 211 is used to partition the accommodating space formed between the first housing 210 and the chassis 100 into a first cavity 201 and a second cavity 202 disposed around the first cavity 201. The first chamber 201 is located in a direction of the partition 211 toward the center of the base pan 100. The second cavity 202 is located on a side of the partition 211 departing from the first cavity 201, and the second cavity 202 is annularly disposed.

Preferably, a first sealing member 310 is disposed between the partition 211 and the baffle 111, and the partition 211 and the baffle 111 abut against opposite sides of the first sealing member 310, respectively. Wherein the first sealing member 310 is made of an elastic material, and the first sealing member 310 is brought into abutment with the partition 211 and the shutter 111 by a deformation force generated by the deformation. A tighter sealing connection between the partition 211 and the baffle 111 can be achieved by the first seal 310, so as to effectively block contaminants from outside the lawn mower 10 from entering the first cavity 201.

Optionally, at least one of the baffle 111 and the partition 211 is provided with a sealing groove 301 to receive the first sealing member 310. In this embodiment, the partition 211 is provided with a sealing groove 301. The seal groove 301 is opened from the end surface of the partition 211 facing the chassis 100 to the side away from the chassis 100, and the seal groove 301 is opened to the chassis 100. Preferably, the sealing groove 301 is opened in the middle of the end surface and does not penetrate through both sides of the partition 211. The first seal 310 is disposed in the sealing groove 301, and the first seal 310 is in contact with the bottom wall and the sidewall of the sealing groove 301. The end of the baffle 111 facing away from the base plate 100 projects into the sealing groove 301. Preferably, the sidewall of the baffle 111 is spaced apart from the inner wall of the sealing groove 301 to prevent a capillary structure from being formed therebetween. In some embodiments, a sealing groove 301 is formed on both a side of the partition 211 facing the chassis 100 and a side of the baffle 111 facing the first housing 210, and a portion of the first sealing element 310 is disposed in the sealing groove 301 of the partition 211, and another portion is disposed in the sealing groove 301 of the baffle 111. In some embodiments, there may be a plurality of sealing grooves 301 and a plurality of first seals 310, and one or more first seals 310 are correspondingly disposed in each sealing groove 301, so that a multi-layer protection structure is formed between the baffle 111 and the partition 211, thereby better sealing the first cavity 201.

In the present embodiment, a side of the partition 211 facing away from the first housing 210 is spaced apart from the chassis 100. It will be appreciated that after external moisture passes through the first heavy guard of the mower 10 and enters the second chamber 202, the moisture will be blocked by the baffle 111, and since the partition 211 is spaced from the chassis 100, the moisture will need to reach a certain amount before the moisture level can contact the partition 211. In this embodiment, an electrical component is disposed in the first cavity 201, and a non-electrical component is disposed in the second cavity 202. Wherein the electrical element comprises at least one of the power source 411, the controller 412, or a combination thereof. The partition 211, the baffle 111 and the first sealing member 310 together form a second protection for the first cavity 201, so that even if external moisture breaks through the first protection and enters the second cavity 202, the first cavity 201 is still protected by the second protection, thereby further preventing the external moisture from entering the first cavity 201 and causing the electrical component to be affected with damp or water.

Referring to fig. 1 and 2 again, a boss 101 protrudes from the middle of the chassis 100 toward the first housing 210, and the partition 211 and the boss 101 are hermetically connected to form a first cavity 201. The first cavity 201 is located between the boss 101 and the first housing 210. Specifically, the top of the boss 101 is configured as a main body portion 110. The main body 110 is provided with a baffle 111 at a position corresponding to the partition 211. The electrical components are disposed on top of the boss 101. In this embodiment, the boss 101 protrudes from the rest of the chassis 100 toward one side of the first housing 210, so that the bottom of the first cavity 201 is higher than the bottom of the second cavity 202, thereby better protecting the electrical components in the first cavity 201.

In the present embodiment, a non-electrical component is disposed in the second cavity 202, and the non-electrical component may be configured as an axle, a storage box, or the like. The non-electric element has better water resistance compared with the electric element, the non-electric element can still work normally when contacting with a small amount of moisture or contacting with moisture in a short time, and the electric element needs to avoid contacting with the moisture so as to avoid short-circuit faults. In this embodiment, the electrical element is disposed in the first cavity 201 with dual protection, so that the electrical element can be effectively prevented from short-circuiting due to moisture or water.

Referring to fig. 2 and 3, a second housing 220 is disposed on a side of the first housing 210 away from the chassis 100. The second housing 220 is buckled on the first housing 210, a third cavity 203 is formed between the first housing 210 and the second housing 220, and a fitting is arranged in the third cavity 203. Wherein the accessory may be an electrical component or a non-electrical component. For example, the accessory may be configured as a sensor, a switching element, and the like. The projection of the second housing 220 on the chassis 100 is arranged to cover the boss 101, so that the second housing 220 protects the first cavity 201 on the boss 101, that is, the side of the first cavity 201 away from the chassis 100 is jointly protected by the first housing 210 and the second housing 220. The electrical components in the third cavity 203 need to be connected to the controller 412 in the first cavity 201 through connection wires, and therefore, a connection hole through which the connection wires pass needs to be formed in the first housing 210. The second housing 220 covers a side of the first housing 210 facing away from the chassis 100, so as to protect the connection hole on the first housing 210 from being directly exposed to the outside of the lawn mower 10.

Referring to fig. 1, 3 and 6, the mower 10 further includes a cutting motor 413 for cutting the lawn. The chassis 100 is provided with a mounting hole 130 communicated with the first cavity 201. A part of the cutting motor 413 is located in the first cavity 201, and another part of the cutting motor extends out of the first cavity 201 from the mounting hole 130. Wherein, a second sealing member 320 is disposed between the chassis 100 and the cutting motor 413 to seal the mounting hole 130, so as to prevent external contaminants from entering the first cavity 201 through the mounting hole 130.

A protective cover 414 is arranged on the side of the chassis 100 facing away from the first shell 210, and the second sealing element 320 is limited in a limiting space enclosed between the chassis 100 and the protective cover 414. The protective cover 414 protects the cutter disc on the lawnmower 10, prevents the cutting blades from splashing clippings around during mowing, and prevents a user from accidentally reaching the cutter disc with his or her hand while the lawnmower 10 is in operation. The side of the protective hood 414 facing the chassis 100 is connected to the side of the cutting motor 413 facing away from the first housing 210. In this embodiment, the cutting motor 413 can be lifted and lowered relative to the chassis 100 to adjust the mowing height of the mower 10. The raising and lowering means that the cutting motor 413 is moved closer to or farther from the lawn when the lawnmower 10 is operated. The second seal 320 includes a first end connected to the chassis 100 and a second end connected to an end of the cutting motor 413 facing away from the first housing 210. The second sealing member 320 is constructed in a telescopic structure so that the second end can be raised and lowered relative to the base plate 100 following the cutting motor 413, thereby ensuring sealing of the mounting hole 130. The second sealing member 320 may be configured as a bellows-like structure, or as another structure having a telescopic capability, or the second sealing member 320 may be made of a material having a good elastic deformation capability.

Specifically, the chassis 100 is provided with a coupling protrusion 415 at a position corresponding to the mounting hole 130. The connecting protrusion 415 extends from the chassis 100 toward the first housing 210, and the connecting protrusion 415 is disposed around the mounting hole 130. The protective cover 414 is provided with a connecting portion 416, and one end of the cutting motor 413 facing away from the first housing 210 is connected to the connecting portion 416. The second seal 320 is defined between the connection projection 415 and the connection part 416. In this embodiment, the first end of the second sealing member 320 is disposed on a side of the connecting projection 415 facing away from the chassis 100. A pressing plate 417 is arranged on the side of the first end facing away from the connecting projection 415. The pressing plate 417 is used for pressing the first end against the connecting protrusion 415, so that the first end is tightly attached to a side surface of the connecting protrusion 415, which faces away from the chassis 100. Wherein, the pressing plate 417 is fixedly connected with the connecting lug 415 through a fastener.

A second end of the second seal 320 is interposed between an end of the cutting motor 413 facing away from the first housing 210 and the connection portion 416. The periphery of one side of the cutting motor 413 facing away from the first housing 210 is provided with a step 418 recessed towards the first housing 210. The shield 414 is provided with a lower recess at a position corresponding to the cutting motor 413, and the bottom of the lower recess is configured as a connection portion 416. The connecting part 416 is provided with a through hole at a position corresponding to the rotating shaft of the cutting motor 413 for the rotating shaft to pass through. A second end of the second seal 320 is disposed in the lower recess and is interposed between the step portion 418 and the connecting portion 416. The connecting portion 416 and the cutting motor 413 are connected by a fastener, and the fastener presses the connecting portion 416 against the cutting motor 413 to tightly attach the second end of the second sealing member 320 to the step portion 418 and the connecting portion 416. In some embodiments, the connection between the second seal 320 and the connection protrusion 415 and the connection portion 416 may also be a snap, an adhesive, a weld, or the like.

Referring to fig. 1, in the present embodiment, mower 10 further includes an axle connected to chassis 100, and the axle passes through second cavity 202. A third seal 330 is provided between the axle and the chassis 100 and the first housing 210. The third sealing member 330 is used to seal the connection between the axle and the chassis 100 and the first housing 210, so as to prevent external contamination from entering the second cavity 202 through the gap between the axle and the chassis 100 and the first housing 210. Preferably, the third sealing member 330 is configured as a deformable elastic member, so that when the axle moves relative to the chassis 100, the third sealing member 330 can deform along with the movement of the axle, thereby better sealing the second cavity 202.

The above description is only a partial embodiment of the present invention, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A lawn mower, comprising:

a chassis;

the first shell and the chassis are mutually buckled to form an accommodating space; the first shell is provided with a partition board which is connected with the chassis in a sealing mode, the partition board divides the accommodating space into a first cavity and a second cavity which surrounds the first cavity, an electrical element is arranged in the first cavity, and a non-electrical element is arranged in the second cavity.

2. The mower according to claim 1, further comprising a first seal, wherein a baffle is protruded from the chassis at a position corresponding to the partition, and the baffle and the partition are sealingly connected by the first seal.

3. The mower of claim 2 wherein at least one of said diaphragm and said guard defines a seal groove, said first seal being disposed in said seal groove.

4. The mower according to claim 1, further comprising a cutting motor, wherein the chassis is provided with a mounting hole communicated with the first cavity, one part of the cutting motor is located in the first cavity, and the other part of the cutting motor extends out of the first cavity from the mounting hole; a second sealing element is arranged between the chassis and the cutting motor.

5. A lawnmower as claimed in claim 4, further comprising a protective cover disposed on a side of the chassis facing away from the first housing, the second seal being defined within a confined space enclosed between the chassis and the protective cover.

6. The lawnmower of claim 1, wherein the electrical element comprises at least one of a power source, a controller, or a combination thereof.

7. A lawnmower as claimed in claim 1, wherein said chassis comprises a main body portion and an extension extending from an edge of said main body portion towards a side facing away from said first housing, and wherein of said first housing is a peripheral edge abutting a peripheral edge of said extension facing away from said main body portion.

8. The mower of claim 1 wherein the chassis includes a boss projecting toward a side of the first housing, the diaphragm sealingly engaging the boss to form the first cavity.

9. The mower of claim 8, wherein a second housing is disposed on a side of the first housing facing away from the chassis, the second housing is fastened to the first housing, a third cavity is formed between the first housing and the second housing, and a fitting is disposed in the third cavity.

10. The lawnmower of claim 9, wherein the projection of the second housing on the chassis covers the boss.