CN205284166U

CN205284166U - High stop gear and from motor mower thereof

Info

Publication number: CN205284166U
Application number: CN201520827246.6U
Authority: CN
Inventors: 王怀政; 吴永东
Original assignee: Ecovacs Robotics Suzhou Co Ltd
Current assignee: Ecovacs Robotics Suzhou Co Ltd
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2016-06-08
Anticipated expiration: 2025-10-23

Abstract

The utility model provides a high stop gear and from motor mower thereof, this high stop gear is used for adjusting the height that sets up the moving member on the body and includes urceolus (200) and establish in its inside inner core (300), urceolus and body link to each other, inner core and moving member (500') link to each other and can go up, it moves to another place to move down fixes a position in the body, be equipped with internal thread (210) on the inner wall of urceolus, it is equipped with external screw thread (310) to correspond on the outer wall of inner core, both correspond the spiral shell and close, the one end of urceolus links to each other with the driving piece, be equipped with stopper (220) on the outer wall of urceolus, the body is equipped with only position (1201), and that ends the position sets up the position with high corresponding with the stopper. The utility model discloses a corresponding stopper that sets up and the mutual mating reaction of salient only phase are realized spacingly, and simple structure is spacing safe and reliable just.

Description

Height limit mechanism and automatic mower thereof

Technical field

This utility model relates to a kind of height limit mechanism and automatic mower thereof, belongs to machinery manufacturing technology field.

Background technology

Automatic mower is widely used outdoor instrument, and automatic mower on the market is generally with blade height regulatory function at present, and this function realizes by arranging various height limit mechanism. A kind of height limit mechanism such as patent disclosure that document number is DE2127247, this mechanism regulates height by mutually rotating of internal and external threads. When blade is raised to maximum height or is reduced to minimum altitude, it is necessary to a height limit mechanism is limited to the highest or extreme lower position. Shown in Fig. 1 in DE2127247, existing height limit mechanism generally utilizes axial limiting, it is simply that is respectively provided with baffle plate in the highest and extreme lower position and makes blade can not continue to raise or reduce. But the technical scheme disclosed in above-mentioned prior art, blade mechanisms is an exposure to engine body exterior, and the spacing height limit mechanism easily making to be exposed to of axial height is blocked by foreign material such as weeds, leaves, discarded plastic bags so that it is restraining position is inaccurate; It addition, existing altitude mixture control shift structure is unreliable, it is easy to slide piece and shift feeling are not strong.

Utility model content

Technical problem to be solved in the utility model is in that for the deficiencies in the prior art, a kind of height limit mechanism and automatic mower thereof are provided, being cooperated by the limited block being correspondingly arranged and protrusion stop bit, it is spacing to realize, and mutually do not interfere with between internal and external screw thread structure, avoid affecting the risk of threads turn and engagement, simple in construction and safe and reliable; Adding groove and elastic piece structure, gear is fixing reliable simultaneously, and the possibility and the shift feeling that greatly reduce slide piece strengthen.

Technical problem to be solved in the utility model is achieved by the following technical solution:

A kind of height limit mechanism, for regulating the height of the moving member being arranged on body, including urceolus and set inner core therein, urceolus is connected with body, inner core is connected with moving member and can position in the body with moving up and down, and the inwall of urceolus is provided with female thread, and the outer wall of inner core is correspondingly provided with external screw thread, both screw togather correspondence, and one end of urceolus is connected with actuator;Being provided with limited block on the outer wall of urceolus, described body is provided with stop bit, described stop bit arrange position with height corresponding with limited block.

More specifically, described limited block has the first operating position and the second operating position, by urceolus equal angular clockwise or counterclockwise, described limited block is made to switch between the first operating position and the second operating position.

In order to make inner core to position in the body with moving up and down, described body is provided with mounting seat, described mounting seat includes the local of body bottom portion and upwardly extends the circumferentially closed positioning table of formation and limiting stand, and limiting stand is nested in inside positioning table, and described urceolus is arranged between; Described inner core is plugged in the inside of described limiting stand, and both cross sectional shapes, size are correspondingly arranged.

As required, described limiting stand be shaped as polygon, and each drift angle place polygonal is circular arc chamfering transition; Or described limiting stand be shaped as spline shape.

Spacing in order to facilitate, described stop bit is extended further up protrusion by the local, upper edge of positioning table and is formed.

In order to make moving member relative to body upper location at various height, the outer wall of described urceolus offers groove, corresponding fixation spring tab on body, one end of described shell fragment is fixed on body, the other end is free end, at urceolus with in the process of actuator turn, described free end is embedded and positions in a groove. Concrete, described positioning table is further opened with perforate, described to facilitate shell fragment through described perforate and to embed groove.

More specifically, the quantity that arranges of described shell fragment is at least one, on the outer wall of described urceolus, the quantity of the corresponding groove offered is multiple, and each groove offering on the outer wall of described urceolus is highly identical.

In order to facilitate control, described actuator is the knob being arranged on urceolus top.

This utility model also provides for a kind of automatic mower, mainly includes body, is provided with the cutter disc system being connected with motor and being driven by it on body, also includes height limit mechanism as above, and described body is body, and described moving member is motor and cutter disc system.

More specifically, described body includes base, base offers the urceolus making mutually to screw togather and the through hole of inner core traverse, and makes cutter disc system be suspended at the lower section of base; Described positioning table is formed along upwardly extending inside through hole by base.

In sum, this utility model by the limited block that is correspondingly arranged and protrude stop bit cooperate realize spacing, limit effect can be reached without only being arranged place's position-limit mechanism on external screw thread by many places, position-limit mechanism is correspondingly arranged on urceolus and base respectively, with interior, mutually do not interfere with between external thread structure, it also avoid in prior art is arranged in the middle of screw-threaded engagement track by screw thread position limiting structure simultaneously, there is position limiting structure abrasion, downthrust process produces chip or deformation, thus affecting the risk of threads turn and engagement, will not produce stuck completely or rotate inflexible situation, simple in construction and safe and reliable. adding groove and elastic piece structure, gear is fixing reliable simultaneously, and the possibility and the shift feeling that greatly reduce slide piece strengthen.

Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in detail.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of this utility model height limit mechanism;

Fig. 2 is the external structure schematic diagram of this utility model height limit mechanism;

Fig. 3 is the overall structure schematic diagram of this utility model automatic mower;

Fig. 4 is the A direction view of Fig. 3;

Fig. 5 is the top view of Fig. 3.

Detailed description of the invention

Fig. 1 is the overall structure schematic diagram of this utility model height limit mechanism; Fig. 2 is the external structure schematic diagram of this utility model height limit mechanism. Such as Fig. 1 and in conjunction with shown in Fig. 2, this utility model provides a kind of height limit mechanism, for regulating the height of the moving member 500 ' being arranged on body, can also play the effect of gear location simultaneously. This mechanism mainly includes urceolus 200 and sets inner core 300 therein, and urceolus 200 is connected with body, and inner core 300 is connected with moving member 500 ' and can position in the body up or down. The inwall of urceolus 200 is provided with female thread 210, and the outer wall of inner core 300 is correspondingly provided with external screw thread 310, and both screw togather correspondence, one end of urceolus is connected with actuator, for convenient operation, in the present embodiment, described actuator is that the top being arranged on urceolus 200 is provided with knob 100. Concrete, actuator can also adopt other mechanism to realize, as driven urceolus 200 to rotate by the engagement of gear. Can obtaining the extreme higher position of correspondence and extreme lower position, described female thread and externally threaded pitch should be identical and have long enough to make knob turn enclose moving member less than one, in the present embodiment, pitch is 30-60mm.

In order to carry out spacing to moving member, being provided with limited block 220 on the outer wall of urceolus 200, described body bottom portion is provided with stop bit 1201, described stop bit 1201 arrange position and height corresponding with limited block 220. More specifically, described limited block 220 has the first operating position (corresponding moving member extreme higher position) and the second operating position (corresponding moving member extreme lower position), by urceolus 200 equal angular clockwise or counterclockwise, described limited block 220 is made to switch between the first operating position laying respectively at stop bit 1201 left and right sides and the second operating position. More specifically, the corresponding requirement according to actual height, the local of described body bottom portion can also upwardly extend formation positioning table 1200, and the upper of described positioning table 1200 extends further up along local thus forming protrusion stop bit 1201. According to the actual requirements, stop bit 1201 can also be arranged on other position of body, but need to ensure that limited block 220 is corresponding with the height of stop bit 1201.

In order to make inner core 300 to position in the body with moving up and down, described body is provided with mounting seat, described mounting seat includes the local of body bottom portion and upwardly extends the circumferentially closed positioning table 1200 of formation and limiting stand 1210, it is internal that limiting stand 1210 is nested in positioning table 1200, and described urceolus 200 is arranged between; Described inner core 300 is plugged in the inside of described limiting stand 1210, and the shape in both cross sections, size are correspondingly arranged. As required, described limiting stand 1210 be shaped as polygon, it is possible to including: triangle, square or pentagon etc. In actual applications, the shape of limiting stand is not limited to above-mentioned shape, and such as limiting stand 1210 can also adopt spline shape. It is true that as long as what make that inner core do not rotate non-circular all can adopt, those skilled in the art can suitably select according to actual needs. In order to facilitate inner core 300 to move up and down, will not being subject to the shape restriction of positioning table 1200 and urceolus 200, polygonal drift angle place is circular arc chamfering transition. In conjunction with the embodiment shown in Fig. 4, limiting stand 1210 be shaped as square, these tetragonal four drift angles are circular arc chamfering.It is pointed out that limiting stand 1210 can adopt various structure to realize, as adopted through hole, groove etc.

Additionally, for the ease of regulating height gear, the outer wall of described urceolus 200 offers groove 230, on body, correspondence is fixed with shell fragment 600, one end of described shell fragment 600 is fixed on body, the other end is free end, and at urceolus 200 with in the process of knob 100 turn, described free end can be embedded in groove 230 and position. In order to make moving member relative to body upper location at various height, the quantity that arranges of described shell fragment 600 is at least one, on the outer wall of described urceolus 200, the quantity of the corresponding groove 230 offered is multiple, and each groove 230 offering on the outer wall of described urceolus is highly identical, it is embedded in the groove 230 of diverse location by the free end of shell fragment 600, it is achieved the location to described moving member high and low position. Under normal circumstances, in order to ensure that shell fragment can effectively position, described shell fragment 600 can adopt compression spring. Concrete, when groove 230 is opened in the sidewall bottom of urceolus 200, in order to not interfere with the shell fragment 600 embedding in groove 230 or ejection, described positioning table 1200 is set to incomplete circumference, correspondence position at both offers perforate, make described groove 230 come out, facilitate shell fragment 600 to embed groove 230 after perforate.

Specifically, the course of action of above-mentioned height limit mechanism is such that

When user needs the height regulating moving member 500 ', rotary knob 100, owing to knob 100 and urceolus 200 interfix, knob 100 drives urceolus 200 to rotate together, now, under the position-limiting action of limiting stand 1210, inner core 300 can in this internal upper and lower displacement, but can not rotate relative to body, and urceolus 200 can rotate, but can not relative to body upper and lower displacement. Owing to being mutually screwed together by female thread 210 and external screw thread 310 between urceolus 200 and inner core 300, therefore, when urceolus 200 clockwise or counterclockwise time, inner core 300 can upper and lower displacement therewith, thus driving moving member 500 ' relative to the upper and lower displacement of body. It is arranged radially in the limited block 220 of urceolus 200 outer wall and is correspondingly arranged under the effect protruding stop bit 1201 on body, in the process of rotary knob 100, moving member being limited to the highest or extreme lower position. Specifically, current location as shown in Figure 4, the opposite side of limited block 220 and protrusion stop bit 1201 abuts, assume that now moving member is in extreme higher position, then after knob 100 is clockwise or counterclockwise less than one week, when the opposite side of limited block 220 and protrusion stop bit 1201 abuts, moving member is then in extreme lower position. It is to say, this utility model is spacing with the height that the relative position change protruding stop bit 1201 realizes moving member 500 ' by limited block 220. It addition, in conjunction with shown in Fig. 2, in the process that knob 100 drives urceolus 200 to rotate, the free end of shell fragment 600 is stuck in the groove 230 being arranged on sustained height diverse location, it is achieved the adjustment to moving member 500 ' high and low position.

Fig. 3 is the overall structure schematic diagram of this utility model automatic mower; Fig. 4 is the A direction view of Fig. 3; Fig. 5 is the top view of Fig. 3. Such as Fig. 3 and in conjunction with shown in Fig. 4, Fig. 5, this utility model also provides for a kind of automatic mower, and described automatic mower mainly includes body 1000, is provided with the cutter disc system 500 being connected with motor 400 and being driven by it on body 1000.Described automatic mower also includes height limit mechanism as above, and described body is body 1000, and described moving member is motor 400 and cutter disc system 500. Specifically, motor 400 and cutter disc system 500 are fixed on urceolus 200, and this urceolus 200 inwall offers female thread 210; The inside of urceolus 200 is provided with inner core 300, and the outer wall of this inner core 300 offers external screw thread 310; External screw thread 310 and female thread 210 are correspondingly arranged and mutually screw togather, and the top of urceolus 200 is provided with knob 100. Shown in Fig. 3, described body 1000 includes base 1100, base 1100 offers the urceolus 200 making mutually to screw togather and the through hole of inner core 300 traverse, and makes cutter disc system 500 be suspended at the lower section of base 1100.

Such as Fig. 5 and in conjunction with shown in Fig. 3 and Fig. 4, base 1100 upwardly extends formation positioning table 1200 inside through hole, outer wall at urceolus 200 is disposed radially limited location block 220, the upper of described positioning table 1200 extends further up formation protrusion stop bit 1201 along local, and it arranges position and height is corresponding with limited block 220. Owing to automatic mower belongs to existing mature equipment, the above improvement part structure only this utility model related to is described, and other structures repeat no more. It addition, as it is shown in figure 5, the external screw thread 310 offered on the outer wall of inner core 300 is further opened with groove 330, corresponding fixation spring tab 600 on base 1100. The quantity that arranges of shell fragment 600 is at least one (not can exceed that at most the quantity of groove 330), but the height that the quantity of the corresponding groove 330 offered is multiple, each on external screw thread 310 is mutually the same, is arranged on different positions. When shell fragment quantity is one, unified shell fragment is by embedding different grooves, and moving member is corresponding to different gear height; When shell fragment quantity is multiple, the distribution angle of multiple shell fragments is corresponding with groove distributing position, it may be assumed that during moving member difference gear height, multiple shell fragments are simultaneously embedded in different grooves, it is possible to prevent the generation of moving member slide piece situation further.

In conjunction with shown in Fig. 3 to Fig. 5, the automatic mower specific works process that this utility model provides is such that in the process that automatic mower is mowed automatically, when the height that user needs the height according to lawn to regulate cutter disc system 500, rotary knob 100, owing to knob 100 and urceolus 200 interfix, such as: knob 100 can use buckle to be rigidly connected with urceolus 200, knob 100 drives urceolus 200 to rotate together, now, inner core 300 can upper and lower displacement in body 1000, but can not rotate relative to body 1000, and urceolus 200 can rotate, but can not relative to body 1000 upper and lower displacement, and be mutually screwed together by female thread 210 and external screw thread 310 between urceolus 200 and inner core 300, therefore, when urceolus 200 clockwise or counterclockwise time, inner core 300 can with on, bottom offset, owing to inner core 300 is rigidly connected with motor 400 and cutter disc system 500, thus driving cutter disc system 500 relative on body 1000, bottom offset.

It is arranged radially in the limited block 220 of urceolus 200 outer wall and is correspondingly arranged under the effect protruding stop bit 1201 on positioning table 1200, in the process of rotary knob 100, cutter disc system 500 being limited to the highest or extreme lower position. Specifically, current location as shown in Figure 3, the opposite side of limited block 220 and protrusion stop bit 1201 abuts, assume that now cutter disc system 500 is in extreme higher position, then after knob 100 is clockwise or counterclockwise less than one week, when the opposite side of limited block 220 and protrusion stop bit 1201 abuts, cutter disc system 500 is then in extreme lower position.It is to say, this utility model is spacing with the height that the relative position change protruding stop bit 1201 realizes cutter disc system 500 by limited block 220. Owing to the difference in height of extreme higher position and extreme lower position is to be determined by the pitch size of internal and external screw thread, under the premise ensureing a constant pitch, it is ensured that there is between extreme higher position and extreme lower position enough differences in height. Such as: in the present embodiment, the design parameter of pitch is 40mm, and therefore, adjustable height is also about 40mm.

Meanwhile, along with knob 100 drives inner core 300 to rotate, external screw thread 310 rotates with, and shell fragment 600 progressively snaps in each groove 330, is used for controlling different gears. There is corresponding relation between set-up mode and the gear of groove 330, such as: in quantity, the quantity of groove is set to more many, and gear interval just divides more thin; The gear that different grooves is corresponding different. Shell fragment 600 inserts groove 330 and is more deeply less susceptible to slide piece, and shift feeling is more strong. Further, since shell fragment 600 generally adopts compression spring, the outer wall of inner core 300 is had pressure by itself. When needs shell fragment discharges, rotary inner core 300, owing to groove 330 itself is arc, during rotation, shell fragment 600 overcomes spring pressure can depart from this groove.

Claims

1. a height limit mechanism, for regulating the height of the moving member being arranged on body, it is characterized in that, including urceolus (200) with set inner core (300) therein, urceolus is connected with body, inner core is connected with moving member (500 ') and can position in the body with moving up and down, the inwall of urceolus is provided with female thread (210), the outer wall of inner core is correspondingly provided with external screw thread (310), both screw togather correspondence, and one end of urceolus is connected with actuator; Being provided with limited block (220) on the outer wall of urceolus, described body is provided with stop bit (1201), described stop bit arrange position with height corresponding with limited block.

2. height limit mechanism as claimed in claim 1, it is characterized in that, described limited block (220) has the first operating position and the second operating position, by urceolus clockwise or counterclockwise (200) equal angular, described limited block is made to switch between the first operating position and the second operating position.

3. height limit mechanism as claimed in claim 1, it is characterized in that, described body is provided with mounting seat, described mounting seat includes the local of body bottom portion and upwardly extends the circumferentially closed positioning table (1200) of formation and limiting stand (1210), limiting stand is nested in inside positioning table, and described urceolus (200) is arranged between; Described inner core (300) is plugged in the inside of described limiting stand, and both cross sectional shapes, size are correspondingly arranged.

4. height limit mechanism as claimed in claim 3, it is characterised in that described limiting stand (1210) be shaped as polygon, and each drift angle place polygonal is circular arc chamfering transition.

5. height limit mechanism as claimed in claim 3, it is characterised in that described stop bit (1201) is extended further up protrusion by the local, upper edge of positioning table (1200) and formed.

6. height limit mechanism as claimed in claim 3, it is characterized in that, the outer wall of described urceolus (200) offers groove (230), corresponding fixation spring tab (600) on body, one end of described shell fragment is fixed on body, the other end is free end, and at urceolus with in the process of actuator turn, described free end is embedded and positions in a groove.

7. height limit mechanism as claimed in claim 6, it is characterised in that described positioning table offers perforate on (1200), to facilitate described shell fragment (600) through described perforate and to embed described groove (230).

8. height limit mechanism as claimed in claim 6, it is characterized in that, the quantity that arranges of described shell fragment (600) is at least one, on the outer wall of described urceolus, the quantity of the corresponding groove (230) offered is multiple, and each groove offering on the outer wall of described urceolus is highly identical.

9. height limit mechanism as claimed in claim 1, it is characterised in that described actuator is the knob (100) being arranged on urceolus top.

10. an automatic mower, mainly include body (1000), body is provided with the cutter disc system (500) being connected with motor (400) and being driven by it, it is characterized in that, also include such as claim 1-2, height limit mechanism described in 9 any one, described body is body, and described moving member is motor and cutter disc system.

11. automatic mower as claimed in claim 10, it is characterized in that, described body (1000) includes base (1100), base offers the through hole making urceolus (200) and inner core (300) traverse mutually screwed togather, and makes cutter disc system (500) be suspended at the lower section of base;

Described base upwardly extends formation positioning table (1200) inside through hole.

12. an automatic mower, mainly include body (1000), body is provided with the cutter disc system (500) being connected with motor (400) and being driven by it, it is characterized in that, also include the height limit mechanism as described in any one of claim 3-8, described body is body, and described moving member is motor and cutter disc system.

13. automatic mower as claimed in claim 12, it is characterized in that, described body (1000) includes base (1100), base offers the through hole making urceolus (200) and inner core (300) traverse mutually screwed togather, and makes cutter disc system (500) be suspended at the lower section of base;

Described positioning table (1200) is formed along upwardly extending inside through hole by base.