CN109618642B

CN109618642B - Roller trapped detection mechanism and mower with same

Info

Publication number: CN109618642B
Application number: CN201910133654.4A
Authority: CN
Inventors: 马妙武
Original assignee: Zhejiang Sunseeker Industrial Co ltd
Current assignee: Zhejiang Baima Technology Co ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2022-04-12
Anticipated expiration: 2039-02-22
Also published as: CN109618642A

Abstract

The invention discloses a roller wheel trapped detection mechanism and a mower with the same, wherein the roller wheel trapped detection mechanism comprises a roller wheel mechanism positioned below the mower; the roller mechanism comprises a roller, a roller shaft penetrates through the roller, a lower cover is sleeved on the outer side of the roller shaft, an upper cover is fixedly connected to the right side of the lower cover in a bolt fixing mode, a fan-shaped cavity is formed between the lower cover and the upper cover, and a swing rod is arranged in the fan-shaped cavity; the upper part of the swing rod is nested with an induction sheet, and the upper cover is nested with a sensing rod. According to the invention, the roller shaft synchronously rotating with the roller, the eccentric shaft arranged on the end face of the roller shaft and the swing rod provided with the swing rod groove and the swing rod hole are arranged, so that when the roller normally rotates, the swing rod drives the induction sheet to regularly swing, and when the roller is in a trapped state, the induction sheet cannot be regularly induced by the sensing rod, thus the trapped state is determined, the detection of the trapped state of the roller is realized, the structure is simple and compact, the detection effect is good, and the use by a user is convenient.

Description

Roller trapped detection mechanism and mower with same

Technical Field

The invention relates to the field of mowers, in particular to a roller wheel trapped detection mechanism and a mower with the same.

Background

The lawn mower is a common garden tool, and with the continuous development of science and technology, the highly intelligent automatic lawn mower is more and more common, but the lawn mower generally has a problem that whether the machine is in a normal walking state is judged, and the invention patent self-moving equipment with the publication number of CN108427410A discloses a structure: the walking mechanism comprises a driving wheel and a driven wheel, the state detection device comprises at least two magnetic triggering parts, a signal inductor and a detection device, the at least two magnetic triggering parts are arranged on the driven wheel and can rotate along with the driven wheel, the polarities of one ends of the adjacent magnetic triggering parts along the same side of the driven wheel are different, and the signal inductor induces a magnetic field signal generated by the magnetic triggering parts and generates an induction signal; the detection device judges the rotation state of the driven wheel according to the induction signal so as to judge whether the self-moving equipment normally travels, but the cost of the structure is high.

In order to solve the same problem but not increase too much cost, the roller trapped detection mechanism is designed, so that the mower can detect whether the mower is in a trapped state or not.

Disclosure of Invention

The present invention is directed to a roller wheel trapping detection mechanism, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a roller wheel trapped detection mechanism comprises a roller wheel mechanism positioned below a mower; the roller mechanism comprises a roller, and the roller penetrates through a roller shaft and is fixedly sleeved with the roller shaft; a lower cover is sleeved on the outer side of the roller shaft, an upper cover is fixedly connected to the right side of the lower cover in a bolt fixing mode, a fan-shaped cavity is formed between the lower cover and the upper cover, a swing rod is arranged in the fan-shaped cavity, a swing rod hole is formed in the lower portion of the swing rod, a swing rod steering shaft is sleeved in the swing rod hole, and the swing rod steering shaft is fixedly connected with the lower cover; a swing rod groove is arranged below the swing rod hole; the outer end face of the roller shaft is provided with an eccentric shaft which is nested in a swing rod groove of the swing rod; the upper part of the swing rod is nested with an induction sheet, the upper end of the upper cover is provided with a sensing rod mounting hole, and a sensing rod is nested in the sensing rod mounting hole.

As a further scheme of the invention: the sensing rod is fixedly connected with a roller fixing frame, and the upper cover is connected with the mower through the roller fixing frame.

As a further scheme of the invention: the upper end of the sensing rod is sleeved with a sensing rod clamp, and the upper end of the sensing rod is connected with a Hall element.

As a further scheme of the invention: the lower cover is provided with a wheel axle hole, the roller axle penetrates through the wheel axle hole and is sleeved with a limiting block, a wheel axle groove is formed in the roller axle, and a wheel axle limiting block is fixedly sleeved in the wheel axle groove.

As a further scheme of the invention: the external diameter of shaft stopper is greater than the external diameter in shaft hole, shaft stopper and shaft hole butt.

As a further scheme of the invention: the upper end face of the lower cover is provided with a screw post, and the upper cover is provided with a screw hole opposite to the screw post.

As a further scheme of the invention: the swing rod groove is a straight through groove.

A mower comprises the roller trapped detection mechanism.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the roller shaft synchronously rotating with the roller, the eccentric shaft arranged on the end face of the roller shaft and the swing rod provided with the swing rod groove and the swing rod hole are arranged, so that when the roller normally rotates, the swing rod drives the induction sheet to regularly swing, and when the roller is in a trapped state, the induction sheet cannot be regularly induced by the sensing rod, thus the trapped state is determined, the detection of the trapped state of the roller is realized, the structure is simple and compact, the detection effect is good, and the use by a user is convenient.

Drawings

FIG. 1 is a schematic view of the mounting position of a roller wheel trapping detection mechanism;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic structural view of the roller wheel trapping detection mechanism.

FIG. 4 is a schematic structural view of the roller wheel trapping detection mechanism without an upper cover;

FIG. 5 is a right side exploded view of the roller wheel entrapment detection mechanism;

fig. 6 is an exploded left view of the roller wheel trapping detection mechanism.

In the figure: 100-a mower; 50-a roller mechanism; 500-a roller; 51-a lower cover; 510-a swing link steering shaft; 511-screw post; 512-axle hole; 52-upper cover; 520-screw holes; 521-sensing lever mounting holes; 53-roller shaft; 530-axle groove; 531-eccentric shaft; 54-a swing rod; 540-pendulum rod hole; 541-a swing rod groove; 55-induction piece; 56-axle stop blocks; 57-sensing lever; 58-roller fixing frame; 59-sensing rod clamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 6, in an embodiment of the present invention, a roller trapping detection mechanism includes a roller mechanism 50 located below a mower 100; the roller mechanism 50 comprises a roller 500, the roller 500 penetrates through a roller shaft 53 and is fixedly sleeved with the roller shaft 53, and the roller shaft 53 and the roller 500 synchronously rotate; the outer side of the roller shaft 53 is sleeved with a lower cover 51, the lower cover 51 is provided with a shaft hole 512, the roller shaft 53 penetrates through the shaft hole 512 and is sleeved with a limit block 56, a shaft groove 530 is formed in the roller shaft 53, the shaft groove 530 is fixedly sleeved with a shaft limit block 56, the outer diameter of the shaft limit block 56 is larger than that of the shaft hole 512, the shaft limit block 56 is abutted against the shaft hole 512, and the right end part of the roller shaft 53 is limited in the lower cover 51.

The right side of the lower cover 51 is fixedly connected with an upper cover 52 in a bolt fixing mode, the upper end face of the lower cover 51 is provided with a screw column 511, the upper cover 52 is provided with a screw hole 520 opposite to the screw column 511, a sector cavity is formed between the lower cover 51 and the upper cover 52, a swing rod 54 is arranged in the sector cavity, the lower part of the swing rod 54 is provided with a swing rod hole 540, a swing rod steering shaft 510 is sleeved in the swing rod hole 540, the swing rod steering shaft 510 is fixedly connected with the lower cover 51, and the swing rod 54 is rotatably connected with the swing rod steering shaft 510 through the swing rod hole 540; a swing rod groove 541 is arranged below the swing rod hole 540, and the swing rod groove 541 is a straight through groove; the outer end face of the roller shaft 53 is provided with an eccentric shaft 531, the eccentric shaft 531 is close to the edge of the circular end face of the roller shaft 53, the eccentric shaft 531 is nested in a swing link groove 541 of the swing link 54, and when the roller 500 and the roller shaft 53 rotate synchronously, the eccentric shaft 531 makes a circular motion, so that the swing link 54 is driven to swing back and forth in the fan-shaped cavity.

The upper part of the swing rod 54 is nested with a sensing piece 55, and the sensing piece 55 swings in a reciprocating manner in the fan-shaped cavity along with the swing rod 54; the upper cover 52 is provided with a sensing rod mounting hole 521 at the upper end, a sensing rod 57 is nested in the sensing rod mounting hole 521, and when the sensing piece 55 swings to the lower part of the sensing rod 57, the sensing rod 57 can detect the signal of the sensing piece 55.

Example 2

This example differs from example 1 in that: the sensing rod 57 is fixedly connected with a roller fixing frame 58, the roller fixing frame 58 is used for fixedly connecting the upper cover 52 with the mower 100, the upper end of the sensing rod 57 is sleeved with a sensing rod clamp 59, the upper end of the sensing rod 57 is connected with a Hall element, when the roller 500 of the mower 100 normally moves, an eccentric shaft 531 at the end part of the roller shaft 53 drives the swing rod 54 to regularly swing, and the sensing rod 57 can detect signals of the law of the sensing piece 55; when the mower 100 is trapped, the roller 500 cannot roll normally, and thus the sensing plate 55 cannot swing regularly along with the swing link 54, so that the sensing lever 57 cannot detect a regular signal, and at this time, it can be known that the mower 100 is trapped, and the user can be notified in other ways.

Example 3

A lawnmower having the roller trapping detection mechanism according to embodiment 2.

The following are specifically mentioned: the induction sheet, the sensing rod and the Hall element are in the prior art; the roller shaft with the eccentric shaft at the end part and the swing rod with the swing rod groove and the swing rod hole are innovation points of the application; through being equipped with the gyro wheel axle that rotates with the gyro wheel is synchronous, the eccentric shaft that the gyro wheel axle terminal surface was equipped with, be equipped with the pendulum rod that has pendulum rod groove and pendulum rod hole for when the gyro wheel normally rotated, the pendulum rod drives the regular swing of response piece, and when being in stranded state, the response piece can not be sensed by the sense lever regularly, and then realizes the affirmation of stranded state, realizes the detection of gyro wheel stranded state, simple structure is compact, and detection effect is good, and convenience of customers uses.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A roller wheel entrapment detection mechanism comprising a roller wheel mechanism (50) located below a lawn mower (100); the device is characterized in that the roller mechanism (50) comprises a roller (500), the roller (500) penetrates through a roller shaft (53) and is fixedly sleeved with the roller shaft (53); a lower cover (51) is sleeved on the outer side of the roller shaft (53), an upper cover (52) is fixedly connected to the right side of the lower cover (51) in a bolt fixing mode, a sector cavity is formed between the lower cover (51) and the upper cover (52), a swing rod (54) is arranged in the sector cavity, a swing rod hole (540) is formed in the lower portion of the swing rod (54), a swing rod steering shaft (510) is sleeved in the swing rod hole (540), and the swing rod steering shaft (510) is fixedly connected with the lower cover (51); a swing rod groove (541) is arranged below the swing rod hole (540), and the swing rod groove is a straight groove; an eccentric shaft (531) is arranged on the outer end face of the roller shaft (53), and the eccentric shaft (531) is nested in a swing rod groove (541) of the swing rod (54); an induction sheet (55) is nested on the upper portion of the swing rod (54), a sensing rod mounting hole (521) is formed in the upper end of the upper cover (52), and a sensing rod (57) is nested in the sensing rod mounting hole (521).

2. The roller entrapment detection mechanism of claim 1, wherein the sensing lever (57) is fixedly connected with a roller fixing bracket (58), and the upper cover (52) is connected with the mower (100) through the roller fixing bracket (58).

3. The roller wheel trapping detection mechanism according to claim 2, wherein a sensing rod clamp (59) is sleeved on the upper end of the sensing rod (57), and a Hall element is connected to the upper end of the sensing rod (57).

4. A roller trapping detection mechanism according to claim 1, wherein the lower cover (51) is provided with a roller shaft hole (512), the roller shaft (53) penetrates through the roller shaft hole (512) and is sleeved with a limit block (56), a roller shaft groove (530) is formed in the roller shaft (53), and the roller shaft limit block (56) is fixedly sleeved in the roller shaft groove (530).

5. The roller wheel trapping detection mechanism according to claim 4, wherein an outer diameter of the axle stopper (56) is larger than an outer diameter of the axle hole (512), and the axle stopper (56) abuts against the axle hole (512).

6. A roller entrapment detection mechanism as claimed in claim 1, wherein the lower cover (51) is provided with a screw post (511) at an upper end surface thereof, and the upper cover (52) is provided with a screw hole (520) opposite to the screw post (511).

7. A roller wheel trapping detection mechanism according to claim 1, wherein said swing link groove (541) is a straight through groove.

8. A lawnmower comprising the wheel trapping detection mechanism according to any one of claims 1 to 7.