CN205088729U - Switching cover device - Google Patents
Switching cover device Download PDFInfo
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- CN205088729U CN205088729U CN201520759072.4U CN201520759072U CN205088729U CN 205088729 U CN205088729 U CN 205088729U CN 201520759072 U CN201520759072 U CN 201520759072U CN 205088729 U CN205088729 U CN 205088729U
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- cover
- shutter
- opening
- opening portion
- fulcrum
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Abstract
The utility model provides a switching cover device which rotate and the structure of switching opening be the prerequisite so that switching cover is along the plate -like member's of bottom plate etc. Surface, can utilize a switching cover with less plane space and a plurality of openings of operation labour high -efficient ground switching. The utilization sets up in two openings (12a, 12b) of the upper ledge rest base board (11) of upper portion rotator around cover counter roll (13) a switching cover of pivoted (14) while switching along the surface of bottom plate (11). Switching cover (14) by the cover body (15a, 15b) of independent ground two openings of switching (12a, 12b) with is connected connecting portion (16) that above -mentioned cover body (15a, 15b) attenuates in the middle of and constitutes, cover counter roll (13) that become the center of rotation of switching cover (14) set up in connecting portion (16), cover counter roll (13) is between two openings (12a, 12b) and at the state at the center (O) that is located round (C).
Description
Technical field
The utility model relates to a kind of shutter device opening portion of the maintenance for equipment class etc. being carried out to opening and closing as the lower cover of excavator.
Background technology
As this shutter device, be known to the technology described in patent document 1.
In this known technology, such as lower closure assembly, and adopt the base plate (plate-shaped member) 1 of upper frame being shown in the upper rotating body forming excavator as Fig. 9 (upward view) institute that the opening portion 2 of safeguarding is set, and the fan-shaped shutter 4 (lower cover of utilization rotation centered by the cover fulcrum 3 extended along the thickness direction of base plate 1.Profile is represented with thick line) structure of this opening portion 2 of opening and closing.In Fig. 9,5,5 is handles of opening and closing operations.
According to this structure, because shutter 4 carries out opening and closing along the surface (soffit) of base plate 1, so be conducive to the situation etc. cannot guaranteeing larger above-below direction space as lower cover.
Patent document 1: No. 5401484th, Japan Patent
Because above-mentioned known technology is to utilize premised on a shutter 4 opening and closing opening portion 2, so when being provided with multiple opening portion, adopting, in each opening portion, cover being set respectively, carry out the structure of opening and closing operations respectively.
Here, as for the drain cock handle hole of fuel tank and outage, in multiple opening portions that identical service object uses near arranging, if arrange shutter device in each opening portion, then in narrow space, setting device is inherently very difficult respectively, and equipment cost uprises.
In addition, owing to having to carry out opening and closing operations respectively, so the operating efficiency of maintenance etc. reduces, and the work of operating personnel burden increases.
In addition, as the structure in order to solve the technical development that this problem makes patent document 1 record, consider to adopt and shutter is formed as covering the fan-shaped of each opening portion in the lump, centered by the major part of its fan, make this cover rotate and the structure of the simultaneously each opening portion of opening and closing.
But if be formed as this structure, then shutter maximizes, therefore the plane space (opening and closing space) that needs of switching station and operating physical force all become large etc. disadvantage and strengthen, and are not very wise move.
Utility model content
Therefore, the utility model provides a kind of to make shutter along the surface pivots of the plate-shaped members such as above-mentioned base plate premised on the structure of opening and closing opening portion, and a shutter can be utilized with the shutter device of less plane space and the operation multiple opening portion of labour's opening and closing efficiently.
As the method solving above-mentioned problem, in the utility model, possess: plate-shaped member, be arranged at this plate-shaped member multiple opening portion and centered by the cover fulcrum extended along the thickness direction of above-mentioned plate-shaped member along the surface pivots of plate-shaped member the shutter of the simultaneously above-mentioned each opening portion of opening and closing, above-mentioned each opening portion is configured in a circle circumferentially at spaced intervals, above-mentioned shutter is configured to
I () is made up of with the connecting portion being connected each cover portion multiple cover portion of the above-mentioned each opening portion of opening and closing independently,
(ii) above-mentioned cover fulcrum is arranged at above-mentioned connecting portion, and above-mentioned cover fulcrum is between above-mentioned each opening portion and be in the state at the center being positioned at above-mentioned circle,
(iii) above-mentioned each cover portion rotates between the closed condition in above-mentioned each opening portion and the open mode between above-mentioned each opening portion.
Here, in the utility model of technical scheme 2, as above-mentioned opening portion, arrange and safeguard opening portion for identical the multiple of service object.
According to said structure, can utilize centered by cover fulcrum along the surface pivots of plate-shaped member shutter multiple opening portion of opening and closing simultaneously.
Therefore, particularly as technical scheme 2, when safeguarding that for identical service object multiple opening portion (the drain cock handle hole of above-mentioned example and outage) is near arranging, can in narrow space simply and shutter device is set at low cost.
In addition, the operating efficiency of maintenance etc. can be improved, reduce the work burden of operating personnel.
In this case, owing to cover fulcrum to be set in the center of the circle being configured with opening portion between each opening portion, so and position between cover fulcrum being set in away from each opening portion, the situation of rotating around great circle is compared, and shutter can be made to rotate compactly with less radius.Therefore, opening and closing space and opening and closing operations power less.
In the utility model, preferably the center of gravity of above-mentioned shutter is set in above-mentioned connecting portion, above-mentioned cover fulcrum is arranged at this center of gravity or its near (technical scheme 3).
According to this structure, due to the center of rotation of cover be positioned at cover center of gravity or its near, so rotating operation becomes more light, operation burden can be reduced further, and the load of cover fulcrum burden is less.
In addition, in the utility model, when being provided with two above-mentioned opening portions, preferably set above-mentioned cover fulcrum (technical scheme 4) in the substantially central portion of the length direction of the above-mentioned shutter be made up of two cover portions and connecting portion of these two opening portions of opening and closing.
Like this, the radius of gyration of shutter can be made to be minimum, in other words opening and closing space to be formed as minimum.
In addition, the connecting portion of necking down shape is preferably utilized to connect above-mentioned each cover portion and form above-mentioned shutter (claim 5).
According to this structure, attenuate due in the middle of connecting portion, so when opening opening portion, connecting portion not easily overlaps with opening portion.Opening portion being set therefore, it is possible to be positioned as close to, being therefore conducive to the situation that there is the requirement at the interval for reducing opening portion as the drain cock handle hole of fuel tank and outage.
Further, in the utility model, preferably the leading section in above-mentioned each cover portion is provided with fastening fixture portion, it utilizes fastening bolt above-mentioned shutter to be fastened and fixed in above-mentioned plate-shaped member (technical scheme 6,7) under above-mentioned closed condition.
Like this, reliably can close and fixed cover, can not wait to opening direction mobile cover because of vibration.
In this case, preferably above-mentioned fastening fixture portion is formed as the hook-type (technical scheme 7) departed under card under the state of closing in the opening portion of shutter relative to above-mentioned fastening bolt is incorporated in the state opened opening portion.
Like this, due to can by tightening, screwed tightening fixing bolt and cover is fixed as and cannot rotates or be discharged, so without the need to the identical bolt of dismounting, good and bolt the is lost risk of workability reduces.
On the other hand, in the utility model, preferably be configured to arrange at the connecting portion of above-mentioned shutter the cover fulcrum through hole passed for the cover fulcrum be made up of bolt, and the screw be screwed into for above-mentioned cover fulcrum is set at above-mentioned plate-shaped member, under the state of unscrewing above-mentioned cover fulcrum, above-mentioned cover can rotate, and under the state of tightening cover fulcrum, above-mentioned cover is fixed to and cannot rotates (technical scheme 8).
According to this structure, owing to opening fixed cover, so do not cover the worry of contact hand, instrument and movement when upkeep operation, workability is good.
According to the utility model, to make shutter premised on the structure of the surface pivots opening and closing opening portion of plate-shaped member, a shutter can be utilized with less space and the operation multiple opening portion of labour's opening and closing.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the lower closure assembly observed from below involved by the 1st embodiment of the present utility model.
Fig. 2 is the stereogram of the installment state of this lower closure assembly.
Fig. 3 is the upward view of this lower closure assembly.
Fig. 4 is that the make shutter of this device suitable with Fig. 3 opens the figure of the state of rotation.
Fig. 5 is the upward view of the lower closure assembly involved by the 2nd embodiment of the present utility model.
Fig. 6 is that the make shutter of this device suitable with Fig. 5 opens the figure of the state of rotation.
Fig. 7 is the upward view of the lower closure assembly involved by the 3rd embodiment of the present utility model.
Fig. 8 is that the make shutter of this device suitable with Fig. 7 opens the figure of the state of rotation.
Fig. 9 is the upward view representing known technology.
Symbol description:
11 ... as the upper frame base plate of plate-shaped member; 12a, 12b, 12c ... opening portion; C ... be configured with the circle of opening portion; 13 ... cover fulcrum; 14 ... shutter; 15a, 15b, 15c ... cover portion; 16 ... connecting portion; 17 ... cover fulcrum through hole; 18 ... for the screw that cover fulcrum is screwed into; 19 ... fastening fixture portion; 20 ... for the through hole that fastening bolt passes; 21 ... for the screw that this bolt is screwed into; 22 ... fastening bolt.
Detailed description of the invention
Fig. 1 ~ Fig. 8 is utilized to be described embodiment of the present utility model.
Embodiment using the lower closure assembly of the bottom surface sections of upper rotating body that is arranged in excavator as application.
1st embodiment (with reference to Fig. 1 ~ Fig. 4)
Shutter device involved by 1st embodiment by the upper frame as plate-shaped member base plate 11, be arranged at this base plate 11 two opening portions (the drain cock handle hole such as used as the fuel tank of same target and outage) 12a, 12b and to rotate and a shutter (lower cover) 14 of opening and closing simultaneously two opening portions 12a, 12b is formed along backplate surface centered by the cover fulcrum 13 extended along the thickness direction of base plate 11.
Shutter 14 is configured to,
I roughly " Pear-Shaped " that () is formed as utilizing the connecting portion 16 of necking down shape two cover portions 15a, 15b of the substantially elliptical of opening and closing two opening portions 12a, 12b to be independently formed by connecting,
(ii) as shown in Figure 3, cover fulcrum 13 is installed on base plate 11, and cover fulcrum 13 is between two opening portion 12a, 12b, and is in as through the center of round C at center of two opening portion 12a, 12b and the center O of connecting portion 16,
(iii) two cover portion 15a, 15b rotate between the closed condition (state of Fig. 2, Fig. 3) and the open mode (state of Fig. 2 double dot dash line and Fig. 4) opening two opening portions 12a, 12b of closedown two opening portions 12a, 12b.
Namely, the position (with reference to Fig. 3) of the half (1/2L) of this cover total length L here, center (center of=connecting portion 16) O of circle C is set in the center of the length direction of shutter 14.
In addition, the center of gravity of shutter 14 entirety is set in and the center of this connecting portion 16 (cover center of rotation) position that O is identical.
In addition, also the center of circle (=cover center of rotation) O can not be set in cover lengthwise centers, and be set in the position near this cover lengthwise centers.In addition, also the center of circle can not be set in position on all four with cover center of gravity, and be set in the left and right of deflection figure or the position of above-below direction a little.
In addition, cover fulcrum 13 is made up of bolt, as shown in Figure 1, through the cover fulcrum through hole 17 being arranged at connecting portion 16, and by being screwed into the screw 18 that is arranged at base plate 11 and being installed on base plate 11.
Thus, cover fulcrum 13 becomes the center of rotation of shutter 14, and is configured to by cover fulcrum 13 is tightened against base plate 11 and shutter 14 cannot can be fixed on rotationally the arbitrary position of rotation direction.
Further, fastening fixture portion 19,19 is respectively arranged with in the leading section of two cover portions 15a, 15b.
Through hole 20,20 is respectively arranged with at this fastening fixture portion 19,19, on the other hand, in base plate 11, under cover closed condition, through hole 20,20 consistent positions are provided with screw 21,21 (with reference to Fig. 1, Fig. 4), under cover closed condition, make fastening bolt 22,22 through through hole 20,20 and be screwed into screw 21,21, and by fastening and shutter 14 can be fixed as closed condition.
In above structure, when non-maintenance, as shown in Figure 2 and Figure 3, shutter 14 is set as closed condition, in this condition, tightens and fix two fastening bolts 22,22 (also can only).Now, cover fulcrum 13 can be tightened in the mode playing bed knife together with fastening bolt 22, also can unscrew the degree of the effect for being maintained as center of rotation.
And, when safeguarding, as shown in Fig. 2 double dot dash line and Fig. 4, pull down two fastening bolts 22,22 and make shutter 14 be formed as rotating state, make centered by cover fulcrum 13 afterwards this cover 14 to the right or left side roughly rotate 90 degree and open two opening portions 12a, 12b, thus carry out the upkeep operation of drain cock operation, oil extraction operation etc.
Now, if tighten cover fulcrum 13 in advance, then in the mode of not movement in upkeep operation, shutter 14 can be fixed as open mode.
According to this structure, following effect can be obtained.
(I) can utilize centered by cover fulcrum 13 along the opening and closing simultaneously of the surface pivots of base plate 11 shutter 14 two opening portions 12a, 12b.
Therefore, when as the drain cock handle hole of fuel tank and outage near being provided with two opening portions 12a, 12b, can in narrow space simply and shutter device is set at low cost.
In addition, the operating efficiency of maintenance etc. can be improved, reduce the work burden of operating personnel.
(II) due between two opening portions 12a, 12b, the center of rotation (cover fulcrum 13) of shutter 14 is set in the center O of the round C being configured with above-mentioned two opening portions 12a, 12b, so as shown in double dot dash line in figure 3, with make shutter 14 at center compared with the situation that the great circle C' be separated between two opening portion 12a, 12b rotates, shutter 14 can be made to rotate compactly with less radius.Therefore, opening and closing space and opening and closing operations power reduce.
(III) due to the center of rotation (position of cover fulcrum 13) of shutter 14 is set in cover center of gravity (or near it), so the rotating operation of shutter 14 becomes more light, thus operation burden can be reduced further and the load of cover fulcrum 13 burden is less.
(IV) because the substantially central portion of the length direction in the shutter 14 be made up of two cover portion 15a, 15b and connecting portions 16 of opening and closing two opening portions 12a, 12b sets cover fulcrum 13, so the radius of gyration of shutter can be made little, in other words opening and closing space is set as minimum.
(V) shutter 14 is formed, so connecting portion 16 not easily overlaps with opening portion 12a, 12b when opening opening portion 12a, 12b owing to utilizing the connecting portion 16 of necking down to connect two cover portion 15a, 15b.
Therefore, opening portion 12a, 12b are set owing to being positioned as close to, so be conducive to the situation of the requirement at the interval existed as the drain cock handle hole of fuel tank and outage for reducing opening portion 12a, 12b.
(VI) owing to being provided with fastening fixture portion 19,19 in the leading section of two cover portions 15a, 15b, it utilizes down fastening bolt 22,22 to be fastened and fixed in base plate 11 by shutter 14 in off position, so reliably can close and fix this shutter 14, shutter 14 can not be moved because of vibration etc. to opening direction.
(VII) owing to arranging the cover fulcrum through hole 17 passed for the cover fulcrum 13 be made up of bolt at the connecting portion 16 of shutter 14, and the screw 18 be screwed into for cover fulcrum 13 is set at base plate 11, under the state of unscrewing cover fulcrum 13, shutter 14 can be rotated, under the state of tightening cover fulcrum 13, shutter 14 is fixed to and cannot rotates, so can open fixing shutter 14.
Therefore, when upkeep operation, this cover 14 does not contact hand, instrument and the worry of movement, and workability is good.
2nd embodiment (with reference to Fig. 5, Fig. 6)
In the 2nd ~ 4th following embodiment, only illustrate the difference with the 1st embodiment.
In the 2nd embodiment, replace the shape with through hole 21 of the 1st embodiment, the both sides fastening fixture portion 19,19 of shutter 14 is formed as the hook-type departed under card under the state of closing in the opening portion of shutter 14 relative to fastening bolt 22,22 is incorporated in the state opened opening portion.
So, due to can by tightening, screwed tightening fixing bolt 22,22 and shutter 14 is fixed as and cannot rotates or be discharged, so without the need to this bolt 22,22 of dismounting, workability is good, and the risk step-down that bolt is lost.
3rd embodiment (with reference to Fig. 7, Fig. 8)
In the 3rd embodiment, adopt following structure, that is: circumferentially to separate the equilateral triangle configuration of (120 °) at equal intervals at one and be provided with three opening portions 12a, 12b, 12c, shutter 14 opening and closing each opening portion 12a, 12b, 12c of being made up of three cover portion 15a, 15b, 15c corresponding with above-mentioned three opening portions 12a, 12b, 12c and the connecting portion 16 of necking down that above-mentioned three cover portions 15a, 15b, 15c connected is utilized.
In the 3rd embodiment, other structures, that is, following two aspects are identical with the 1st or the 2nd embodiment,
(イ) the cover fulcrum 13 be made up of bolt is set in the central part of shutter 14 (connecting portion 16) and cover center of gravity or the aspect near it,
(ロ) three ends of shutter 14 are provided with the fastening fixture portion 19 with through hole or hook-type ..., by by fastening bolt 22 ... be screwed into the screw (not shown) of base plate 11 and shutter 14 be fixed as the aspect of closed condition.
In addition, as the change of the 3rd embodiment, above-mentioned equilateral triangle configuration can not be adopted, and adopt each opening portion 12a, 12b, 12c are set with the triangular arrangement separating unequal interval, utilize the shutter of the roughly Y-shaped be made up of three cover portions corresponding with each opening portion 12a, 12b, 12c and connecting portion to carry out the structure of opening and closing.
In addition, even if opening portion is more than four, also when one circumferentially separated compartment of terrain be provided with above-mentioned each opening portion, the structure utilizing the shutter possessing the cover portion identical with opening portion quantity simultaneously to carry out opening and closing can be adopted.
On the other hand, in the utility model, also fastening fixture portion can not be set in each cover portion.
In addition, cover fulcrum 13 also can not use bolt, and uses pin.
Further, the utility model is not limited to the lower closure assembly of the bottom surface of the upper rotating body being arranged at excavator, can be widely used in level or vertical plate-shaped member are provided with multiple opening portion, and needs the various closure assemblies of each opening portion of opening and closing.
Claims (10)
1. a shutter device, is characterized in that,
Possess: plate-shaped member, be arranged at this plate-shaped member multiple opening portion and centered by the cover fulcrum extended along the thickness direction of described plate-shaped member along the surface pivots of plate-shaped member the shutter of each opening portion described in simultaneously opening and closing, described each opening portion is configured in a circle circumferentially at spaced intervals, described shutter is configured to
I () is made up of with the connecting portion being connected each cover portion multiple cover portion of each opening portion described in opening and closing independently,
(ii) described cover fulcrum is arranged at described connecting portion, and described cover fulcrum is in the state at the center being positioned at described circle between described each opening portion,
(iii) described each cover portion rotates between the closed condition in described each opening portion and the open mode between described each opening portion.
2. shutter device according to claim 1, is characterized in that,
As described opening portion, arrange and safeguard opening portion for identical the multiple of service object.
3. shutter device according to claim 1, is characterized in that,
The center of gravity of described shutter is set in described connecting portion, described cover fulcrum is arranged at this center of gravity or its near.
4. shutter device according to claim 2, is characterized in that,
The center of gravity of described shutter is set in described connecting portion, described cover fulcrum is arranged at this center of gravity or its near.
5. shutter device according to claim 1, is characterized in that,
Be provided with two described opening portions, set described cover fulcrum in the substantially central portion of the length direction of the described shutter be made up of two cover portions and connecting portion of this two opening portion of opening and closing.
6. shutter device according to claim 2, is characterized in that,
Be provided with two described opening portions, set described cover fulcrum in the substantially central portion of the length direction of the described shutter be made up of two cover portions and connecting portion of this two opening portion of opening and closing.
7. shutter device according to claim 1, is characterized in that,
The connecting portion of necking down shape is utilized to connect described each cover portion and form described shutter.
8. shutter device according to claim 1, is characterized in that,
The leading section in described each cover portion is provided with fastening fixture portion, and it utilizes fastening bolt to be fastened and fixed described shutter in described plate-shaped member under described closed condition.
9. shutter device according to claim 8, is characterized in that,
Described fastening fixture portion is formed as engaging under the state of closing in the opening portion of shutter relative to described fastening bolt and the hook-type departed from the open state.
10. the shutter device according to any one of claim 1 ~ 9, is characterized in that,
Be configured to arrange at the connecting portion of described shutter the cover fulcrum through hole passed for the cover fulcrum be made up of bolt, and the screw be screwed into for described cover fulcrum is set at described plate-shaped member, under the state of unscrewing described cover fulcrum, described cover can rotate, and under the state of tightening cover fulcrum, described cover is fixed to and cannot rotates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014203209A JP6119710B2 (en) | 2014-10-01 | 2014-10-01 | Open / close cover device |
| JP2014-203209 | 2014-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205088729U true CN205088729U (en) | 2016-03-16 |
Family
ID=55479430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520759072.4U Active CN205088729U (en) | 2014-10-01 | 2015-09-28 | Switching cover device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6119710B2 (en) |
| CN (1) | CN205088729U (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6181539U (en) * | 1984-11-01 | 1986-05-30 | ||
| JPH10306467A (en) * | 1997-04-30 | 1998-11-17 | Hitachi Constr Mach Co Ltd | Dust-proof device in cab of construction machine |
| JP2005188025A (en) * | 2003-12-24 | 2005-07-14 | Shin Caterpillar Mitsubishi Ltd | Cover member in construction machine |
| JP4845206B2 (en) * | 2006-12-12 | 2011-12-28 | 日立建機株式会社 | Undercover device for construction machinery |
-
2014
- 2014-10-01 JP JP2014203209A patent/JP6119710B2/en active Active
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2015
- 2015-09-28 CN CN201520759072.4U patent/CN205088729U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016070018A (en) | 2016-05-09 |
| JP6119710B2 (en) | 2017-04-26 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |