CN200962740Y

CN200962740Y - Supporting wheel device for grass mower

Info

Publication number: CN200962740Y
Application number: CN 200620125026
Authority: CN
Inventors: 桑树华; 毛晓红
Original assignee: SUZHOU LEVAC ELECTRIC APPLIANCE CO Ltd
Current assignee: SUZHOU LEVAC ELECTRIC APPLIANCE CO Ltd
Priority date: 2006-11-02
Filing date: 2006-11-02
Publication date: 2007-10-24
Anticipated expiration: 2016-11-02

Abstract

A supporting wheel device of a lay cutter arranged on the shaft of the lay cutter comprises a bracket, a roller connected with one end of the bracket and a locking element connected with the other end of the bracket. The locking element comprises a shaft lining, a bearing bush matching the shaft lining, and a locking component, wherein the shaft lining is fixedly connected with the other end of the bracket and moveably covers the shaft, and the locking component rotatably covers the shaft lining and the bearing bush and presses the bearing bush tightly onto the shaft. In this way, rotating of the locking component can realize interlocking or unlocking of the supporting wheel device and the shaft without adjustment of extra tools, thereby enabling easy and quick operation of the supporting wheel device with safe and reliable structure.

Description

The wheel device of mower

Affiliated technical field

The utility model relates to a kind of mower, especially the wheel device of mower.

Background technology

Hand-held mower in the garden instrument is widely used at present, and it uses a kind of flexible filament of high speed rotating to clear up weeds as cutting tool usually.With reference to U.S. Pat 4224784, US4922694 and US5450715, such mower generally includes the axostylus axostyle of work head, handle, connection work head and handle and is connected wheel device on the axostylus axostyle.Thereby this wheel device is supported on apart from being convenient to cut weeds on the certain height of ground in order to the head of will working, and an end that comprises support, support is fixedly attached on the axostylus axostyle by locking element, the other end of support is connecting roller, roller can be on the ground along arbitrary directional rolling, the operator only need promote this roller and can make that mower moves ahead like this, thereby has been convenient to guiding and supporting of operator.Yet above-mentioned locking element generally comprises bearing shell and axle sleeve (axle bush) and cooperatively interacts and slidably be set on the axostylus axostyle, and by bolt bearing shell and axle sleeve is clamped on the axostylus axostyle.When regulating the correct position of wheel device on axostylus axostyle, usually the other instrument of needs unclamps its clamping screw and then regulates, and then clamping screw is fixed by this instrument, thereby make and regulate the operation more complicated, and repeatedly to after the locking of bolt and unclamping, bolt lost efficacy easily, made wheel device not to be connected on the axostylus axostyle safely and reliably.

Summary of the invention

In order to overcome the deficiency of existing mower upper support wheel apparatus, the utility model provides a kind of wheel device of mower safe and reliable, easy to use.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of wheel device of mower, described mower comprises axostylus axostyle, described wheel device is connected on the described axostylus axostyle and comprises support, be connected the roller of an end of support and the locking element that is connected the other end of support, it is characterized in that: described locking element comprises axle sleeve, the bearing shell and the locking member that can match with described axle sleeve, described axle sleeve is fixedly connected on the other end of described support and is set in slidably on the described axostylus axostyle, described locking member rotatably is set on described axle sleeve and the described bearing shell, and described bearing shell can be pressed on the described axostylus axostyle.

The beneficial effects of the utility model are, the locking member that is located on bearing shell and the axle sleeve by a direction rotary sleeve can be pressed on bearing shell on the axostylus axostyle, and reverse rotation can be unclamped bearing shell from axostylus axostyle, like this, need not other instrument and can regulate operation quickly and easily, and this locking element is simple in structure, and handling safety is reliable.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the part assembling stereogram corresponding to the mower of the utility model first embodiment.

Fig. 2 is the part three-dimensional exploded view of Fig. 1.

Fig. 3 be in Fig. 1 A-A to partial sectional view, this moment, locking element and axostylus axostyle unclamped mutually.

Fig. 4 is the partial sectional view after locking element and axostylus axostyle are locked mutually among Fig. 1.

Fig. 5 is the axial cutaway view after locking element and axostylus axostyle cooperatively interact among Fig. 1

Fig. 6 is the part assembling stereogram corresponding to the mower of the utility model second embodiment.

Fig. 7 is the part three-dimensional exploded view of Fig. 6.

Fig. 8 is the axial cutaway view after locking element among Fig. 6 and axostylus axostyle cooperatively interact.

Among the figure: 1. work head 2. axostylus axostyles 3. wheel device 4. flexible filament 6. supports 8. rollers 10/30. locking element 11. convex shoulders 12/32. axle sleeve 13. latches 14/34. bearing shell 15. flanks 16/36. locking member 17. compressing tablets 18. locating holes 19. projections 20. chutes 21. are by fastener 22. fasteners 24. cam surfaces 25. otch 33. convex surfaces 37. first flanks 38. second flanks 39. the 3rd flank

Embodiment

With reference to Fig. 1, be depicted as the part assembly drawing of the mower that embodies the utility model preferred embodiment.The wheel device 3 that this mower comprises work head 1, is fixedly connected on the axostylus axostyle 2 on the work head 1 and is installed in axostylus axostyle 2.In the housing of work head 1, be provided with motor (figure do not show) and, cut, clear up by the weeds on 4 pairs of lawns of flexible filament of high speed rotating by the flexible filament 4 that motor drove.

Further referring to figs. 2 to Fig. 3, corresponding to first embodiment of the present utility model, above-mentioned wheel device 3 is installed in the position near work head 1 of axostylus axostyle 2, and comprises support 6, is connected the pair roller 8 of an end of support 6 and the locking element 10 that is connected the other end of support.This support 6 is certain arcuation, and roller 8 is installed in the both sides of support 6.Described locking element 10 comprises axle sleeve 12, the bearing shell 14 and the locking member 16 that match with described axle sleeve 12.

Above-mentioned axle sleeve 12 is fixedly connected on the other end of support 6 and is set in slidably on the described axostylus axostyle 2.The both sides of the rearward end of this axle sleeve 12 form pair of notches 25, form a pair of locating hole 18 respectively on this vertical plane to otch 25 (not label).From this otch 25 is offered a pair of chute 20 along the length direction of axle sleeve 12.As shown in Figure 5, the inner surface of axle sleeve 12 forms fastener 22, and this fastener is a circumferential recess.

The leading section of described bearing shell 14 forms the compressing tablet 17 that both sides are cut open, and forms a projection 19 on the outer surface of compressing tablet 17.Both sides in the rearward end of bearing shell 14 form a pair of convex shoulder 11, and this can combine with above-mentioned pair of notches 25 to convex shoulder 11.Form a pair of latch 13 in this inboard to convex shoulder 11, this can insert in the above-mentioned positioning hole corresponding 18 latch 13.Also form a pair of flank 15 in the both sides of bearing shell 14, this flank 15 lays respectively at the below of latch 13, and when bearing shell 14 was assembled on the axle sleeve 12, described flank 15 slipped in the corresponding chute 20.In addition, the middle part of bearing shell 14 outwards protrudes out one by fastener 21, this by fastener 21 can with above-mentioned fastener 22 mutual buckles.

Above-mentioned locking member 19 is roughly the column knob of hollow, and it is set on the axostylus axostyle 2 slidably.The inner surface of this locking member 19 forms cam surface 24, and this cam surface 24 can match with described projection 19.

In use, earlier bearing shell 14 is mounted on the axle sleeve 12, make that the convex shoulder 11 of bearing shell 14 is resisted against on the axle sleeve 12 corresponding otch 25 respectively, the flank on it 15 slip in the corresponding chute 20 with and on latch 13 insertion positioning hole corresponding 18 in; After mounted bearing shell 14 and axle sleeve 12 be adjusted to correct position place on the axostylus axostyle 2 slidably, locking member 19 is slided to and is set in simultaneously on bearing shell 14 and the axle sleeve 12 then, and make on fastener 22 and the bearing shell 14 in it by fastener 21 mutual buckles, in case locking member 16 is along the axial of axostylus axostyle 2 and landing from the bearing shell 14; At last, along as shown in the figure direction of arrow a rotational lock parts 16 to position shown in Figure 4, make the cam surface 24 in it that projection on bearing shell 14 19 is pressed to axostylus axostyle 2, thereby compressing tablet 17 is pressed on the axostylus axostyle 2 tightly, like this, this wheel device 3 is by safe and reliable being locked on the axostylus axostyle 2.Along with the reverse rotation locking member 16 of arrow a to position shown in Figure 3, can make cam surface 24 loosen the projection 19 on the bearing shell 14 gradually, thereby make bearing shell 14 and axle sleeve 12 slidably, can regulate wheel device 3 once more with respect to the position on the axostylus axostyle 2 with respect to axostylus axostyle 2.

With further reference to Fig. 6 to Fig. 8, be depicted as corresponding to second embodiment of the present utility model.In the present embodiment, except the locking element 30 of wheel device and the locking element among first embodiment 10 were inequality, remaining modular construction was all identical, thus identical parts will adopt with first embodiment in identical label and omit its detailed description.

In the present embodiment, locking element 30 comprises axle sleeve 32, the bearing shell 34 and the locking member 36 that match with described axle sleeve 32.

Above-mentioned axle sleeve 32 is fixedly connected on the other end of support 6 and is set in slidably on the described axostylus axostyle 2.The shape of the axle sleeve 12 among the shape of this axle sleeve 32 and first embodiment is roughly similar, and is formed with otch 25, locating hole 18 and chute 20 (figure does not show) equally.Different is, forms first flank 37 at the part outer surface of this axle sleeve 32.

The shape of the bearing shell 14 among the shape of above-mentioned bearing shell 34 and first embodiment is also roughly similar, and forms convex shoulder 11, latch 13 and flank 15 equally.Different is, the part outer surface of this bearing shell 34 forms second flank 38, and when described bearing shell 34 matches with described axle sleeve 32, thereby described first flank 37 and described second flank 38 are aimed at the flanks (Fig. 8) that form a whole shape mutually.In addition, form a convex surface 33 on the outer surface of the front end of bearing shell 34.

The cone knob of described locking member 36 for having certain taper, and its inner surface also forms conical the 3rd flank 39 that is this tapering, and in preferred embodiment of the present utility model, this tapering is roughly 5 degree.This locking member 36 be sheathed with on the bearing shell that assembles 34 and the axle sleeve 32 back along with direction of arrow a rotational lock parts 36 shown in Figure 3, like this, described conical the 3rd flank 39 is being pressed to the convex surface 33 of bearing shell 34 gradually with the described whole intermeshing while of shape flank, thereby gradually this convex surface 33 is pressed on the described axostylus axostyle 2, like this, wheel device is locked on the axostylus axostyle 2 safely and reliably.With first embodiment similarly, along with the reverse rotation locking member 36 of arrow a, can make conical the 3rd flank 39 loosen the convex surface 33 on the bearing shell 34 gradually, thereby make bearing shell 34 and axle sleeve 32 slidably, can regulate wheel device 3 once more with respect to the position on the axostylus axostyle 2 with respect to axostylus axostyle 2.

Claims

1. the wheel device of a mower, described mower comprises axostylus axostyle, described wheel device is connected on the described axostylus axostyle and comprises support, be connected the roller of an end of support and the locking element that is connected the other end of support, it is characterized in that: described locking element comprises axle sleeve, the bearing shell and the locking member that can match with described axle sleeve, described axle sleeve is fixedly connected on the other end of described support and is set in slidably on the described axostylus axostyle, described locking member rotatably is set on described axle sleeve and the described bearing shell, and described bearing shell can be pressed on the described axostylus axostyle.

2. the wheel device of mower according to claim 1, it is characterized in that: the leading section of described bearing shell forms a compressing tablet, outer surface at described compressing tablet forms projection, and the inner surface of described locking member forms cam surface, thereby described cam surface can match with described projection described bearing shell is pressed on the described axostylus axostyle.

3. the wheel device of mower according to claim 1 and 2 is characterized in that: the inner surface of described axle sleeve forms fastener, and the outer surface of described bearing shell forms by fastener, and described fastener can be with described by the mutual buckle of fastener.

4. the wheel device of mower according to claim 1, it is characterized in that: the outer surface of described axle sleeve forms first flank of part, the outer surface of described bearing shell forms second flank of part, when described bearing shell matches with described axle sleeve, thus described first flank and the mutual corresponding whole flank that forms of described second flank.

5. the wheel device of mower according to claim 4 is characterized in that: the inner surface of described locking member forms the 3rd flank with certain taper, and described the 3rd flank can be meshing with each other with described whole flank

6. the wheel device of mower according to claim 5, it is characterized in that: the outer surface of front end of described bearing shell forms a convex surface, thus described the 3rd flank can cooperatively interact with described convex surface described bearing shell is pressed on the described axostylus axostyle.

7. according to the wheel device of the described mower of any claim in the claim 1 to 6, it is characterized in that: the rearward end of described bearing shell forms convex shoulder, and the rearward end of described axle sleeve forms otch, and described convex shoulder can cooperatively interact with described otch,

8. the wheel device of mower according to claim 7 is characterized in that: the inboard at described convex shoulder forms latch, locating hole on the side of described otch, and described latch can insert in the described locating hole.

9. the wheel device of mower according to claim 7 is characterized in that: the side of described bearing shell forms flank, and the side of described axle sleeve forms chute, and described flank can slip in the described chute.