CN201100082Y - Louver door leaf rotating shaft - Google Patents

Abstract

The utility model relates to a rotating shaft of blind door blades, which is connected between the blades and a jamb, the rotating shaft comprises a shaft sleeve which is provided with a body and is combined with the jamb, wherein the shaft sleeve is traversed through the body with a hole, a plurality of grooves are arranged one end of the body, each groove extends preset distance from the end surface of the body along the hole axial direction, each groove is traversed into the hole from the outer surface of the body, the rotating shaft also comprises a shaft which is provided with a front segment and a rear segment, wherein the front segment is closely matched with the shaft sleeve, and the rear segment is used to combine with the blades. The body of the utility model is provide with the grooves, one end of the grooves can be elastically deformed, the front segment of the shaft is closely matched with the shaft sleeve, after the shaft sleeve and the jamb are combined, one end of the shaft sleeve which is provided with the grooves is oppressed to withdraw inwards due to elastic deformation since a fixed hole of the jamb is comparatively small, after the front segment is traversed through the shaft sleeve, a part of the elastic deformation can be slightly distracted to open outwards, the shaft sleeve can be stably combined in the jamb, the part of elastic deformation of the shaft sleeve also can produce clamping force to part of the front segment of the shaft, the shaft and the shaft sleeve can be closed matched, and the blades can be easily rotated and positioned.

Description

The rotating shaft of shutter door blade

Technical field

The utility model relates to a kind of shutter door blade pivot rotation structure, and particularly relating to a kind of axle sleeve can firmly be fastened in the frame, and makes the rotating shaft of the shutter door blade that blade can be rotated easily and locate.

Background technology

The rotating shaft that between each blade and frame, is pivoted of general shutter door or shutter regular meeting, make blade relatively this frame pivot, in order to change the angle of each blade folding.

As Chinese patent CN2525224Y number " a kind of blade locating structure of transom " disclosed technology, see also shown in Figure 6ly, be Chinese patent CN2525224Y number structure cross-sectional schematic in the prior art.This locating structure comprises and wears axle 71 and one sleeve 72; This sleeve 72, constituted by an edge 721 and a beam barrel 722, the external diameter of this edge 721 is greater than the external diameter of this beam barrel 722, the external diameter of this beam barrel 722 then pore size with the fixing hole 731 of the frame 73 of transom is close, this beam barrel 722 can be inserted in this fixing hole 731, and form between edge 721 and the beam barrel 722 and be provided with several fin lines 723, when making beam barrel 722 insert the fixing hole 731 of frames 73, can fasten by fin line 723 and be arranged in this fixing hole 731; And this wears axle 71, has a leading portion 711, a stage casing 712 and a back segment 713; The external diameter in this stage casing 712 is close with the internal diameter size of beam barrel 722, forms friction tight structural relation when making stage casing 712 insert beam barrel 722; And the external diameter of this back segment 713 is bigger than stage casing 712, and this back segment 713 can support the end face that terminates in this beam barrel 722 when beam barrel 722 is inserted in stage casing 712; The external diameter of this leading portion 711 is less than this stage casing 712, and also is provided with several fin lines 714 between this leading portion 711 and this stage casing 712, when making stage casing 712 insert the fixing hole 741 of blades 74, can fasten by fin line 714 and is arranged in this fixing hole 741.

In aforesaid locating structure, wearing axle 71 must elder generation be penetrated by the end that sleeve 72 does not have edge 721, make in the fixing hole 731 that the beam barrel 722 of sleeve 72 could be inserted frame 73 after wearing axle 71 and sleeve 72 combining and fix the location, but because beam barrel 722 is the structures that are straight-tube shape, therefore the fixing hole 731 on the frame 73 just need be processed into and the close form of beam barrel 722 external diameters size, just can be convenient to allow beam barrel 722 insert in this fixing hole 731.

Beam barrel 722 will be not easy to be inserted in this fixing hole 731 if the aperture of fixing hole 731 is too small, to may allow beam barrel 722 deform in the beam barrel 722 insertion fixing holes 731 if force, and make beam barrel 722 and wear and produce excessive friction tight phenomenon between axle 71 the stage casing 712, allow and wear axle 71 and become and be not easy to be rotated, and influence the convenience of blade 74 on rotating operation with blade 74.Otherwise if the aperture of fixing hole 731 is bigger, though beam barrel 722 can insert in the fixing hole 731 easily, the axial restraint strength between beam barrel 722 and the frame 73 will relative deficiency, and is easy to generate loosening problem.

In addition, be to penetrate owing to wear axle 71 by the end that sleeve 72 does not have an edge 721, therefore after blade 74 and frame 73 assemblings, the back segment 713 of wearing axle 71 can be positioned at frame 73 inside, makes to wear axle 71 and can't take out from sleeve 72.One of them is damaged and when desiring to change if wear axle 71 or sleeve 72, then must will wear spools 71 and pull down from frame 73 and blade 74 together with sleeve 72, just can change.And wear axle 71 and in the process of pulling down, must damage with sleeve 72, make and originally unspoiledly wear axle or sleeve also must be changed, so will cause unnecessary waste.

Seeing also shown in Figure 7ly, is United States Patent (USP) US6655091 number structure cross-sectional schematic in the prior art.No. 6655091 " window blind assembly " patents of U.S. Pat have then disclosed another kind of structure, it is to be provided with a stud shaft group between blade 81 and frame 82, it includes an axle sleeve 83 and a stud shaft 84, this stud shaft 84 has a nail portion 841 and a sleeve pipe 842, and should nail portion 841 and sleeve pipe 842 between be provided with a pad 843, the outer rim of this nail portion 841 also is provided with most flange (not shown), in order to hammer in the blade 81, and the external diameter of this sleeve pipe 842 is to match with the endoporus 831 of this axle sleeve 83, and this sleeve pipe 842 is provided with a hole 845 away from an end of this nail portion 841, this sleeve pipe 842 is penetrated after the axle sleeve 83, can one pin 85 hammer in this hole 845, make sleeve pipe 842 expanded and and be friction tight structural form between the axle sleeve 83; In addition, these axle sleeve 83 outer rims are provided with plurality of fins 832, fix the location in order to the fixing hole 821 with frame 82.

This structure must penetrate after the axle sleeve 83 by first sleeve pipe 842 with stud shaft 84, will sell 85 again and hammer in the hole 845 of these sleeve pipe 842 ends, could fix the location in the fixing hole 821 with axle sleeve 83 insertion frames 82 after making axle sleeve 83 and stud shaft 84 combining.But owing to axle sleeve 83 is the structures that are straight-tube shape, so the fixing hole on the frame 82 821 must be processed into and the big or small close form of axle sleeve 83 external diameters, just can be convenient to allow axle sleeve 83 insert in these fixing holes 821.Above-mentioned so structure, its stud shaft, axle sleeve are similar with the triangular corresponding relation of the fixing hole of frame and aforesaid Chinese patent CN2525224Y number " a kind of blade locating structure of transom " patent, can have if the aperture of fixing hole is too small and to be difficult to assemble and problem that blade is not easy to be rotated, if the aperture of fixing hole is bigger, the loosening problem of axle sleeve then takes place easily.

Please consulting shown in Figure 8ly again, is United States Patent (USP) US6848213 number structure cross-sectional schematic in the prior art.No. 6848213, U.S. Pat " drive unit of blade of louver window ", be that the tooth bar 92 that is extended with predetermined length is set in frame 91, can be provided with for tooth axle 93 in this tooth bar 92, and tooth axle 93 is provided with a gear 931, one stage casing 932 and a pin portion 933, this gear 931 is for being meshed with tooth bar 92, and should pin portion 933 be in the hole 941 of inserting blade 94, and be provided with a croze structure 934 between this stage casing 932 and the pin portion 933, in order to fix the location with blade 94, this tooth bar 92 is driven in when moving up and down in the frame 91, can drive this tooth axle 93 and pivot, to change the angle of blade 94 foldings with blade 94.

These tooth bar 92 both sides are respectively equipped with straight flange 921 is placed in wherein gear 931, and an end in these gear 931 relative stage casings 932 is provided with bulge loop 935, the diameter of this bulge loop 935 is the external diameters greater than gear 931, and match with the spacing of the flange 921 of tooth bar 92 both sides, make between the flange 921 of gear 931 and both sides and maintain the gap, and only contact with straight two flanges 921 by bulge loop 935, avoid unnecessary friction to reduce contact area, allow tooth axle 92 and blade 94 be driven by tooth bar 92 easily and pivot.

Reduce the structure that contact area can avoid unnecessary friction to allow blade 94 be pivoted easily though disclosed in the aforesaid device, but this kind structure is made of bulge loop 935 and two straight flanges 921, and in the Chinese patent CN2525224Y number structure with No. 6655091, U.S. Pat of can't directly being migrated, improve the problem of blade rotation.

This shows that the rotating shaft of above-mentioned existing blade obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore, how to found a kind of rotating shaft of shutter door blade of new structure, make between the fixing hole of axle sleeve (sleeve) and frame and produce the firm strength that engages, and make stud shaft (wearing axle) and axle sleeve (sleeve) keep suitable tight fit form that blade is rotated easily, real one of the current important research and development problem that belongs to, becoming the current industry utmost point needs improved target, also becomes matter of utmost importance to be solved in the utility model.

Because the defective that the rotating shaft of above-mentioned existing blade exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, rotating shaft in the hope of the shutter door blade of founding a kind of new structure, can improve the rotating shaft of general existing blade, make it have more practicality.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.

Summary of the invention

Main purpose of the present utility model is, overcome the defective of the rotating shaft existence of existing blade, and provide a kind of rotating shaft of shutter door blade of new structure, technical problem to be solved is to make it be provided with several profile grooves at axle sleeve one end, makes it can elastic deformation, can open outward by the contact axle sleeve after allowing axle penetrate, make axle sleeve firmly be fastened in the frame, and make the axle and axle sleeve between maintain suitable tight fit form, blade can be rotated easily, be very suitable for practicality.

Another purpose of the utility model is, a kind of rotating shaft of shutter door blade of new structure is provided, technical problem to be solved is that to make this be that a end by this axle sleeve blades adjacent penetrates in the hole of axle sleeve, therefore at axle sleeve with after frame combines, axle still can take out from axle sleeve, and can be convenient to the carrying out of Maintenance and Repair work, thereby be suitable for practicality more.

The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.Rotating shaft according to a kind of shutter door blade that the utility model proposes, it is connected between a blade and the frame, this rotating shaft comprises: an axle sleeve, it has a body, in order to being incorporated into this frame, and run through this body with a hole, an end of this body is provided with several profile grooves, each profile groove is by the end face of this body preset distance that extends axially along this hole, and each profile groove is that external surface by this body is through to this hole; And one, it has a leading portion and a back segment, and this leading portion is that the hole with this axle sleeve is friction tight structural form, and this back segment is in order to be incorporated into this blade.

The purpose of this utility model and solve its technical problem and can also be able to be further achieved by the following technical measures.

The rotating shaft of aforesaid shutter door blade is provided with a catch between the leading portion of wherein said axle and the back segment, and the external diameter of this catch is the diameter greater than the hole of this axle sleeve body.

The rotating shaft of aforesaid shutter door blade, wherein said axle sleeve form at an end that is provided with profile groove and are provided with a holding section, and this holding section is provided with a lead angle, make this holding section away from the external diameter of an end of the body external diameter less than this body.

The rotating shaft of aforesaid shutter door blade, the external surface of wherein said body are protruded and are provided with the lug that several uniformly-spaced are provided with.

The rotating shaft of aforesaid shutter door blade, the external surface of the back segment of wherein said axle are protruded and are provided with the fin that several uniformly-spaced are provided with.

The rotating shaft of aforesaid shutter door blade, wherein said leading portion has the bigger protuberance of an external diameter away from an end of this back segment.

The rotating shaft of aforesaid shutter door blade, the back segment of wherein said axle has the tip of a taper away from an end of this leading portion.

The rotating shaft of aforesaid shutter door blade, the back segment of wherein said axle is provided with several profile grooves away from an end of this leading portion, and each profile groove is radially to run through this back segment.

The rotating shaft of aforesaid shutter door blade, the body of wherein said axle sleeve is cylindrical.

The utility model compared with prior art has tangible advantage and beneficial effect.Via as can be known above, for achieving the above object, the rotating shaft of the disclosed shutter door blade of the utility model, include an axle sleeve and one, the body of this axle sleeve is to run through with a hole, and an end of this body is provided with several profile grooves, and each profile groove is by the end face of this body preset distance that extends axially along this hole, and each profile groove is radially to run through this body; This axle has a leading portion and a back segment, and this leading portion is that the hole with this axle sleeve is friction tight form, and this back segment is in order to be incorporated into this blade.

By technique scheme, the rotating shaft of the utility model shutter door blade has following advantage and beneficial effect at least:

1, the utility model is because an end of this axle sleeve is provided with several profile grooves, make it have the ability of elastic deformation, after axle sleeve and frame combination, be subjected to the less influence of fixing hole of frame, one end that can make axle sleeve be provided with profile groove inwardly contracts because of elastic deformation, and after the leading portion of axle penetrates axle sleeve, the part of elastic deformation can be strutted slightly and outer opening, this axle sleeve can firmly be incorporated among the frame; Relatively the part of elastic deformation can produce the strength that clamps to the part of the leading portion of axle, is friction tight structural form and allow be between axle and the axle sleeve, and then blade is rotated easily.

2, in addition, because this is to be penetrated the hole by the end from contiguous this blade of axle sleeve body, when therefore needing to change, only blade and frame need be disassembled and separate when axle sleeve or one of them damage of axle, this axle is separated with axle sleeve change, and can maintain easily the carrying out of service work.

In sum, the utility model relates to a kind of rotating shaft of shutter door blade, it is connected between blade and the frame, rotating shaft is made of axle sleeve and axle, the axle sleeve body is provided with a hole of running through, and an end of body is provided with several profile grooves, and making body be provided with an end of profile groove can elastic deformation, and the leading portion of axle is that hole with axle sleeve is friction tight structural form.After making the combination of axle sleeve and frame, an end that forces axle sleeve to be provided with profile groove because of the less meeting of the fixing hole of frame inwardly contracts because of elastic deformation, and after the leading portion of axle penetrates axle sleeve, the part of elastic deformation can be strutted slightly and outer opening, axle sleeve can firmly be incorporated among the frame, and the part of axle sleeve elastic deformation also can produce the strength that clamps to the part of the leading portion of axle, allows be friction tight form between axle and the axle sleeve, and can make blade be rotated easily and locate.The utility model is provided with several profile grooves by it at axle sleeve one end, make it can elastic deformation, can open outward by the contact axle sleeve after allowing axle penetrate, make axle sleeve firmly be fastened in the frame, and make the axle and axle sleeve between maintain suitable tight fit form, blade can be rotated easily.Of the present utility model this is that a end by this axle sleeve blades adjacent penetrates in the hole of axle sleeve, therefore at axle sleeve with after frame combines, spool still can from axle sleeve, take out, and can be convenient to the carrying out of Maintenance and Repair work.The utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the rotating shaft of more existing blade has the outstanding effect of enhancement, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of manual, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is an exploded perspective view of the present utility model.

Fig. 2 is the exploded perspective view of rotating shaft of the present utility model.

Fig. 3 is that axle sleeve of the present utility model is filled in the structure cross-sectional schematic in the frame fixing hole.

Fig. 4 is the cross-sectional schematic that axle sleeve of the present utility model combines with axle and frame.

Fig. 5 is a combining structure cross-sectional schematic of the present utility model.

Fig. 6 is Chinese patent CN2525224Y number a structure cross-sectional schematic in the prior art.

Fig. 7 is United States Patent (USP) US6655091 number a structure cross-sectional schematic in the prior art.

Fig. 8 is United States Patent (USP) US6848213 number a structure cross-sectional schematic in the prior art.

1: axle sleeve 11: body

12: hole 13: lug

14: holding section 15: profile groove

2: axle 21: leading portion

22: back segment 23: catch

24: protuberance 25: fin

26: most advanced and sophisticated 3: frame

31: fixing hole 4: blade

41: fixing hole 71: wear axle

711: leading portion 712: stage casing

713: back segment 714: the fin line

72: sleeve 721: edge

722: beam barrel 723: the fin line

73: frame 731: fixing hole

74: blade 741: fixing hole

81: blade 82: frame

821: fixing hole 83: axle sleeve

831: endoporus 832: fin

84: stud shaft 841: nail portion

842: sleeve pipe 843: pad

845: hole 85: pin

91: frame 92: tooth bar

921: flange 93: the tooth axle

931: gear 932: stage casing

933: pin portion 934: the croze structure

935: bulge loop 94: blade

941: the hole

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of rotating shaft, structure, feature and effect thereof according to the shutter door blade that the utility model proposes, describe in detail as after.

Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.

See also Fig. 1 to shown in Figure 5, structure shown in the figure is the structure of the first selected preferred embodiment of the utility model.

See also Figure 1 and Figure 2, Fig. 1 is an exploded perspective view of the present utility model, and Fig. 2 is the exploded perspective view of rotating shaft of the present utility model.Rotating shaft of the present utility model is to be connected between a frame 3 and the blade 4, and this rotating shaft includes an axle sleeve 1 and one 2, and this axle sleeve 1 is in order in the fixing hole 31 that is incorporated into this frame 3, and this axle 2 then combines in order to the fixing hole 41 with axle sleeve 1 and blade 4.

Above-mentioned axle sleeve 1 has a body 11, and runs through this body 11 with a hole 12, and this body 11 is cylindrical, and is provided with several lugs that uniformly-spaced is provided with 13 at the external surface protrusion of this body 11.

This body 11, the one end has a holding section 14, the outer rim of this holding section 14 is provided with lead angle, make away from the external diameter of an end of this body 11 less, and this holding section 14 is provided with several profile grooves 15, each profile groove 15 is by the end face of this holding section 14 preset distance that extends axially along this hole 12, and radially runs through this holding section 14.

Above-mentioned axle 2, have a leading portion 21 and a back segment 22, and be provided with a catch 23 between this leading portion 21 and back segment 22, the external diameter of this catch 23 is the diameters greater than the hole 12 of this body 11, this axle 2 and axle sleeve 1 are worn when combining, can abut against in body 11 conducts of this axle sleeve 1 by this catch 23 and locate.

This leading portion 21, its external diameter are the internal diameters less than the hole 12 of this axle sleeve 1, and the end that 21 pairs of this leading portions should holding section 14 is provided with the bigger protuberance of an external diameter 24.

This back segment 22, its external surface are protruding with several fins that uniformly-spaced is provided with 25, and this back segment 22 is provided with the tip 26 of a taper away from an end of this leading portion 21.

Seeing also shown in Figure 3ly, is that axle sleeve of the present utility model is filled in the structure cross-sectional schematic in the frame fixing hole.In order to make in the fixing hole that is incorporated into this frame 3 31 that axle sleeve 1 can be firm, therefore the fixing hole 31 of frame 3 can be designed to be friction tight structural form with axle sleeve 1 body 11.Because the holding section 14 of this axle sleeve 1 is provided with lead angle, and this holding section 14 is provided with several profile grooves 15, therefore even the aperture of this fixing hole 31 is less, this axle sleeve 1 still can be by contracting in the guiding of lead angle and holding section 14 elastic deformations, and can allow axle sleeve 1 easily be established in this fixing hole 31 by plug.

Moreover, because the internal diameter of fixing hole 31 is less than the external diameter of this body 11, so when axle sleeve 1 is established into this fixing hole 31 by plug, this holding section 14 can produce elastic deformation and inwardly contract, i.e. aspect as shown in Figure 3, please shown in Figure 4 in conjunction with consulting, it is the cross-sectional schematic that axle sleeve of the present utility model combines with axle and frame, when this leading portion of 2 21 penetrates in the hole 12 of body 11, the protuberance 24 of this leading portion 21 is understood the holding section 14 of contracting in the general and is outwards shored, make that holding section 14 is outer opens and push against in the inner edge of fixing hole 31, and embed in the frames 3, be arranged in this frame 3 (as shown in Figure 4) and make this axle sleeve 1 firmly to fasten by the lug 13 of body 11.

Simultaneously, this holding section 14 also can produce the strength that clamps this leading portion of 2 21, and because the front end of this leading portion 21 is provided with protuberance 24, therefore the clamping strength of holding section 14 only can act on this protuberance 24, even the clamping strength of holding section 14 is big slightly, can or not influence because active area is limited yet this 2 and the smooth degree that rotates of blade 4, and can possess suitable frictional force, allow blade 4 be turned to the effect that produces the location after the required folding angle.

Seeing also shown in Figure 5ly, is combining structure cross-sectional schematic of the present utility model.When the back segment 22 of axle 2 inserts the fixing hole 41 of blade 4, the tip 26 (as shown in Figure 2) of this back segment 22 can be guided this back segment 22 and be entered in this fixing hole 41, and protrude by back segment 22 appearances in several fins 25 embedding blades 4 of setting, make this 2 back segment 22 and blade 4 fix the location.After axle sleeve 1, axle 2, frame 3 combine with blade 4 and fix, as shown in Figure 5, this catch 23 can be resisted against this body 11 as this 2 and 1 location that wears mutually of axle sleeve, and the interval between formation blade 4 and the frame 3, can avoid blade to contact, and then make blade to be rotated swimmingly with frame.

Moreover, because holding section 14 has the ability of elastic deformation, and come clamping lugs 24 to produce required tight fit effect by the ability of this elastic deformation, even therefore external environment and temperature produce and change, this holding section 14 still can clamp this protuberance 24 by the elastic deformability of self, end enough frictional resistance when axle 2 and axle sleeve 1 relatively rotate, to provide, and then can guarantee locating effect blade 4.

In addition, because this 2 is to be penetrated the hole 12 from the body 11 of axle sleeve 1 end with respect to holding section 14 by the end at protuberance 24 places, and the protuberance 24 of axle 2 is to fasten in the holding section of axle sleeve 1 14 inner edges, need the situation of replacing if therefore run into axle sleeve 1 or axle 2 one of them damage, only blade 4 need be disassembled with frame 3 and be separated, this axle 2 just can be separated with axle sleeve 1, this axle sleeve 1 still can be combined in the frame 3, axle 2 also can be combined on the blade 4, again the axle sleeve 1 that damages or axle 2 is pulled down renewal afterwards and gets final product.Therefore, do not need as previous prior art an axle sleeve and an axle update all, and can avoid unnecessary waste, and can make easier the carrying out of work of Maintenance and Repair.

Certainly, aforesaid profile groove structure also can be arranged at profile groove the back segment of axle except can being arranged at the axle sleeve body, makes the back segment of axle have the ability of elastic deformation, and can guarantee the back segment of axle and the fixing locating effect between the blade.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims (9)

1. the rotating shaft of a shutter door blade, it is connected between a blade and the frame, it is characterized in that this rotating shaft comprises:

One axle sleeve, it has a body, in order to be incorporated into this frame, and run through this body with a hole, one end of this body is provided with several profile grooves, and each profile groove is by the end face of this body preset distance that extends axially along this hole, and each profile groove is that external surface by this body is through to this hole; And

One, it has a leading portion and a back segment, and this leading portion is that the hole with this axle sleeve is friction tight structural form, and this back segment is in order to be incorporated into this blade.

2. the rotating shaft of shutter door blade according to claim 1 is characterized in that being provided with a catch between the leading portion of wherein said axle and the back segment, and the external diameter of this catch is the diameter greater than the hole of this axle sleeve body.

3. the rotating shaft of shutter door blade according to claim 1, it is characterized in that wherein said axle sleeve is provided with a holding section in the end formation that is provided with profile groove, and this holding section is provided with a lead angle, makes this holding section away from the external diameter of an end of the body external diameter less than this body.

4. the rotating shaft of shutter door blade according to claim 1 and 2 is characterized in that the external surface protrusion of wherein said body is provided with the lug that several uniformly-spaced are provided with.

5. the rotating shaft of shutter door blade according to claim 1 and 2 is characterized in that the external surface protrusion of the back segment of wherein said axle is provided with the fin that several uniformly-spaced are provided with.

6. the rotating shaft of shutter door blade according to claim 1 is characterized in that wherein said leading portion has the bigger protuberance of an external diameter away from an end of this back segment.

7. the rotating shaft of shutter door blade according to claim 1 is characterized in that the back segment of wherein said axle has the tip of a taper away from an end of this leading portion.

8. the rotating shaft of shutter door blade according to claim 1, the back segment that it is characterized in that wherein said axle is provided with several profile grooves away from an end of this leading portion, and each profile groove is radially to run through this back segment.

9. the rotating shaft of shutter door blade according to claim 1, the body that it is characterized in that wherein said axle sleeve is cylindrical.

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